lustre/utils/lfs.c

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2011, 2017, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  *
  31  * lustre/utils/lfs.c
  32  *
  33  * Author: Peter J. Braam <braam@clusterfs.com>
  34  * Author: Phil Schwan <phil@clusterfs.com>
  35  * Author: Robert Read <rread@clusterfs.com>
  36  */
  37
  38 /* for O_DIRECTORY */
  39 #ifndef _GNU_SOURCE
  40 #define _GNU_SOURCE
  41 #endif
  42
  43 #include <stdlib.h>
  44 #include <stdio.h>
  45 #include <inttypes.h>
  46 #include <getopt.h>
  47 #include <string.h>
  48 #include <mntent.h>
  49 #include <unistd.h>
  50 #include <errno.h>
  51 #include <err.h>
  52 #include <pwd.h>
  53 #include <grp.h>
  54 #include <sys/ioctl.h>
  55 #include <sys/quota.h>
  56 #include <sys/time.h>
  57 #include <sys/types.h>
  58 #include <sys/stat.h>
  59 #include <sys/param.h>
  60 #include <sys/xattr.h>
  61 #include <fcntl.h>
  62 #include <dirent.h>
  63 #include <time.h>
  64 #include <ctype.h>
  65 #include <zlib.h>
  66 #include <libgen.h>
  67 #include <asm/byteorder.h>
  68 #include "lfs_project.h"
  69
  70 #include <libcfs/util/string.h>
  71 #include <libcfs/util/ioctl.h>
  72 #include <libcfs/util/parser.h>
  73 #include <libcfs/util/string.h>
  74 #include <lustre/lustreapi.h>
  75 #include <linux/lustre/lustre_ver.h>
  76 #include <linux/lustre/lustre_param.h>
  77 #include <linux/lnet/nidstr.h>
  78 #include <lnetconfig/cyaml.h>
  79 #include "lstddef.h"
  80
  81 /* all functions */
  82 static int lfs_find(int argc, char **argv);
  83 static int lfs_getstripe(int argc, char **argv);
  84 static int lfs_getdirstripe(int argc, char **argv);
  85 static int lfs_setdirstripe(int argc, char **argv);
  86 static int lfs_rmentry(int argc, char **argv);
  87 static int lfs_unlink_foreign(int argc, char **argv);
  88 static int lfs_osts(int argc, char **argv);
  89 static int lfs_mdts(int argc, char **argv);
  90 static int lfs_df(int argc, char **argv);
  91 static int lfs_getname(int argc, char **argv);
  92 static int lfs_check(int argc, char **argv);
  93 #ifdef HAVE_SYS_QUOTA_H
  94 static int lfs_setquota(int argc, char **argv);
  95 static int lfs_quota(int argc, char **argv);
  96 static int lfs_project(int argc, char **argv);
  97 #endif
  98 static int lfs_flushctx(int argc, char **argv);
  99 static int lfs_poollist(int argc, char **argv);
 100 static int lfs_changelog(int argc, char **argv);
 101 static int lfs_changelog_clear(int argc, char **argv);
 102 static int lfs_fid2path(int argc, char **argv);
 103 static int lfs_path2fid(int argc, char **argv);
 104 static int lfs_rmfid(int argc, char **argv);
 105 static int lfs_data_version(int argc, char **argv);
 106 static int lfs_hsm_state(int argc, char **argv);
 107 static int lfs_hsm_set(int argc, char **argv);
 108 static int lfs_hsm_clear(int argc, char **argv);
 109 static int lfs_hsm_action(int argc, char **argv);
 110 static int lfs_hsm_archive(int argc, char **argv);
 111 static int lfs_hsm_restore(int argc, char **argv);
 112 static int lfs_hsm_release(int argc, char **argv);
 113 static int lfs_hsm_remove(int argc, char **argv);
 114 static int lfs_hsm_cancel(int argc, char **argv);
 115 static int lfs_swap_layouts(int argc, char **argv);
 116 static int lfs_mv(int argc, char **argv);
 117 static int lfs_ladvise(int argc, char **argv);
 118 static int lfs_getsom(int argc, char **argv);
 119 static int lfs_heat_get(int argc, char **argv);
 120 static int lfs_heat_set(int argc, char **argv);
 121 static int lfs_mirror(int argc, char **argv);
 122 static int lfs_mirror_list_commands(int argc, char **argv);
 123 static int lfs_list_commands(int argc, char **argv);
 124 static inline int lfs_mirror_resync(int argc, char **argv);
 125 static inline int lfs_mirror_verify(int argc, char **argv);
 126 static inline int lfs_mirror_read(int argc, char **argv);
 127 static inline int lfs_mirror_write(int argc, char **argv);
 128 static inline int lfs_mirror_copy(int argc, char **argv);
 129 static int lfs_pcc_attach(int argc, char **argv);
 130 static int lfs_pcc_attach_fid(int argc, char **argv);
 131 static int lfs_pcc_detach(int argc, char **argv);
 132 static int lfs_pcc_detach_fid(int argc, char **argv);
 133 static int lfs_pcc_state(int argc, char **argv);
 134 static int lfs_pcc(int argc, char **argv);
 135 static int lfs_pcc_list_commands(int argc, char **argv);
 136 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
 137                               __u64 migration_flags,
 138                               struct llapi_stripe_param *param,
 139                               struct llapi_layout *layout);
 140
 141 struct pool_to_id_cbdata {
 142         const char *pool;
 143         __u32 id;
 144 };
 145 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata);
 146 static int find_mirror_id_by_pool(struct llapi_layout *layout, void *cbdata);
 147
 148 enum setstripe_origin {
 149         SO_SETSTRIPE,
 150         SO_MIGRATE,
 151         SO_MIGRATE_MDT,
 152         SO_MIRROR_CREATE,
 153         SO_MIRROR_EXTEND,
 154         SO_MIRROR_SPLIT,
 155         SO_MIRROR_DELETE,
 156 };
 157
 158 static int lfs_setstripe_internal(int argc, char **argv,
 159                                   enum setstripe_origin opc);
 160
 161 static inline int lfs_setstripe(int argc, char **argv)
 162 {
 163         return lfs_setstripe_internal(argc, argv, SO_SETSTRIPE);
 164 }
 165
 166 static inline int lfs_setstripe_migrate(int argc, char **argv)
 167 {
 168         return lfs_setstripe_internal(argc, argv, SO_MIGRATE);
 169 }
 170
 171 static inline int lfs_mirror_create(int argc, char **argv)
 172 {
 173         return lfs_setstripe_internal(argc, argv, SO_MIRROR_CREATE);
 174 }
 175
 176 static inline int lfs_mirror_extend(int argc, char **argv)
 177 {
 178         return lfs_setstripe_internal(argc, argv, SO_MIRROR_EXTEND);
 179 }
 180
 181 static inline int lfs_mirror_split(int argc, char **argv)
 182 {
 183         return lfs_setstripe_internal(argc, argv, SO_MIRROR_SPLIT);
 184 }
 185
 186 static inline int lfs_mirror_delete(int argc, char **argv)
 187 {
 188         return lfs_setstripe_internal(argc, argv, SO_MIRROR_DELETE);
 189 }
 190
 191 /* Setstripe and migrate share mostly the same parameters */
 192 #define SSM_CMD_COMMON(cmd) \
 193         "usage: "cmd" [--component-end|-E COMP_END]\n"                  \
 194         "                 [--stripe-count|-c STRIPE_COUNT]\n"           \
 195         "                 [--overstripe-count|-C STRIPE_COUNT]\n"       \
 196         "                 [--stripe-index|-i START_OST_IDX]\n"          \
 197         "                 [--stripe-size|-S STRIPE_SIZE]\n"             \
 198         "                 [--extension-size|--ext-size|-z]\n"           \
 199         "                 [--help|-h] [--layout|-L PATTERN]\n"          \
 200         "                 [--mirror_count|-N[MIRROR_COUNT]]\n"          \
 201         "                 [--ost|-o OST_INDICES]\n"                     \
 202         "                 [--pool|-p POOL_NAME]\n"                      \
 203         "                 [--yaml|-y YAML_TEMPLATE_FILE]\n"             \
 204         "                 [--copy=LUSTRE_SRC]\n"
 205
 206 #define SSM_HELP_COMMON \
 207         "\tSTRIPE_COUNT: Number of OSTs to stripe on (0=fs default, -1 all)\n" \
 208         "\t              Using -C instead of -c allows overstriping, which\n"  \
 209         "\t              will place more than one stripe per OST if\n"         \
 210         "\t              stripe_count is greater than the number of OSTs.\n"   \
 211         "\tSTART_OST_IDX: OST index of first stripe (-1=default round robin)\n"\
 212         "\tSTRIPE_SIZE:  Number of bytes on each OST (0=fs default)\n"         \
 213         "\t              Optional K, M, or G suffix (for KB, MB, GB\n"         \
 214         "\t              respectively).  Must be a multiple of 64KiB.\n"       \
 215         "\tEXTENSION_SIZE:\n"                                                  \
 216         "\t              Number of bytes the previous component is extended\n" \
 217         "\t              each time. Optional K, M, or G suffix (for KB,\n"     \
 218         "\t              MB, GB respectively)\n"                               \
 219         "\tPOOL_NAME:    Name of OST pool to use (default none)\n"             \
 220         "\tLAYOUT:       stripe pattern type: raid0, mdt (default raid0)\n"    \
 221         "\tOST_INDICES:  List of OST indices, can be repeated multiple times\n"\
 222         "\t              Indices be specified in a format of:\n"               \
 223         "\t                -o OST_1,OST_I-OST_J,OST_N\n"                       \
 224         "\t              Or:\n"                                                \
 225         "\t                -o OST_1 -o OST_I-OST_J -o OST_N\n"                 \
 226         "\t              If --pool is set with --ost then the OSTs\n"          \
 227         "\t              must be the members of the pool.\n"                   \
 228         "\tCOMP_END:     Extent end of component, start after previous end.\n" \
 229         "\t              Optional K, M, or G suffix (for KiB, MiB, GiB), or\n" \
 230         "\t              -1 or 'eof' for max file size). Must be a multiple\n" \
 231         "\t              of stripe_size and a multiple of 64KiB.\n"            \
 232         "\tYAML_TEMPLATE_FILE:\n"                                              \
 233         "\t              YAML layout template file, can't be used with -c,\n"  \
 234         "\t              -i, -S, -p, -o, or -E arguments.\n"                   \
 235         "\tLUSTRE_SRC:   Lustre file/dir whose layout info is used to set\n"   \
 236         "\t              another lustre file or directory, can't used with\n"  \
 237         "\t              -c, -i, -S, -p, -o, or -E arguments.\n"
 238
 239 #define MIRROR_CREATE_HELP                                                     \
 240         "\tMIRROR_COUNT: Number of mirrors to be created with the upcoming\n"  \
 241         "\t              setstripe layout options\n"                           \
 242         "\t              It defaults to 1 if not specified; if specified,\n"   \
 243         "\t              it must follow the option without a space.\n"         \
 244         "\t              The option can also be repeated multiple times to\n"  \
 245         "\t              separate mirrors that have different layouts.\n"      \
 246         "\tSETSTRIPE_OPTIONS: Mirror layout as with 'setstripe'\n"             \
 247         "\t              It can be a plain layout or a composite layout.\n"    \
 248         "\t              If not specified, the stripe options inherited\n"     \
 249         "\t              from the previous component will be used.\n"          \
 250         "\tFLAGS:        set flags to the component of the current mirror.\n"  \
 251         "\t              Only \"prefer\" flag is supported so far.\n"
 252
 253 #define MIRROR_EXTEND_HELP                                                     \
 254         MIRROR_CREATE_HELP                                                     \
 255         "\tVICTIM_FILE:  The layout of victim_file will be split and used\n"   \
 256         "\t              as a mirror added to the mirrored file.\n"            \
 257         "\tno-verify:    This option indicates not to verify the mirror(s)\n"  \
 258         "\t              from victim file(s) in case the victim file(s)\n"     \
 259         "\t              contains the same data as the original mirrored\n"    \
 260         "\t              file.\n"
 261
 262 #define MIRROR_EXTEND_USAGE                                                    \
 263         "                 {--mirror-count|-N[mirror_count]}\n"                 \
 264         "                 [SETSTRIPE_OPTIONS|-f|--file VICTIM_FILE]\n"         \
 265         "                 [--no-verify]\n"
 266
 267 #define SETSTRIPE_USAGE                                                 \
 268         SSM_CMD_COMMON("setstripe")                                     \
 269         MIRROR_EXTEND_USAGE                                             \
 270         "                 <directory|filename>\n"                       \
 271         SSM_HELP_COMMON                                                 \
 272         MIRROR_EXTEND_HELP
 273
 274 #define MIGRATE_USAGE                                                   \
 275         SSM_CMD_COMMON("migrate  ")                                     \
 276         "                 [--block|-b] [--non-block|-n]\n"              \
 277         "                 [--non-direct|-D] [--verbose|-v]\n"           \
 278         "                 <filename>\n"                                 \
 279         SSM_HELP_COMMON                                                 \
 280         "\n"                                                            \
 281         "\tblock:        Block file access during data migration (default)\n" \
 282         "\tnon-block:    Abort migrations if concurrent access is detected\n" \
 283         "\tnon-direct:   Do not use direct I/O to copy file contents\n" \
 284         "\tverbose:      Print each filename as it is migrated\n"       \
 285
 286 #define SETDIRSTRIPE_USAGE                                              \
 287         "               [--mdt-count|-c stripe_count>\n"                \
 288         "               [--help|-h] [--mdt-hash|-H mdt_hash]\n"         \
 289         "               [--mdt-index|-i mdt_index[,mdt_index,...]\n"    \
 290         "               [--default|-D] [--mode|-o mode]\n"              \
 291         "               [--max-inherit|-X max_inherit]\n"               \
 292         "               [--max-inherit-rr max_inherit_rr] <dir>\n"      \
 293         "\tstripe_count: stripe count of the striped directory\n"       \
 294         "\tmdt_index: MDT index of first stripe\n"                      \
 295         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 296         "       crush     CRUSH hash algorithm (default)\n" \
 297         "       fnv_1a_64 FNV-1a hash algorithm\n"              \
 298         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 299         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 300         "\tmode: the file access permission of the directory (octal)\n" \
 301         "To create dir with a foreign (free format) layout :\n"         \
 302         "setdirstripe|mkdir --foreign[=FOREIGN_TYPE] -x|-xattr STRING " \
 303                 "[--mode|-o MODE] [--flags HEX] <dir>\n" \
 304         "\tmode: the file access permissions of the directory\n"        \
 305         "\tforeign_type: none, daos, symlink, or numeric value\n"
 306
 307 /**
 308  * command_t mirror_cmdlist - lfs mirror commands.
 309  */
 310 command_t mirror_cmdlist[] = {
 311         { .pc_name = "create", .pc_func = lfs_mirror_create,
 312           .pc_help = "Create a mirrored file.\n"
 313                 "usage: lfs mirror create {--mirror-count|-N[MIRROR_COUNT]}\n"
 314                 "\t\t[SETSTRIPE_OPTIONS] <filename|directory> ...\n"
 315           MIRROR_CREATE_HELP },
 316         { .pc_name = "delete", .pc_func = lfs_mirror_delete,
 317           .pc_help = "Delete a mirror from a file.\n"
 318         "usage: lfs mirror delete {--mirror-id MIRROR_ID|-p POOL|\n"
 319         "\t               --component-id|--comp-id|-I COMP_ID} <mirror_file>\n"
 320         },
 321         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 322           .pc_help = "Extend a mirrored file.\n"
 323                 "usage: lfs mirror extend {--mirror-count|-N[MIRROR_COUNT]}\n"
 324                 "\t\t[--no-verify] [SETSTRIPE_OPTIONS|-f VICTIM_FILE] ... <filename> ...\n"
 325           MIRROR_EXTEND_HELP },
 326         { .pc_name = "split", .pc_func = lfs_mirror_split,
 327           .pc_help = "Split a mirrored file.\n"
 328         "usage: lfs mirror split [--destroy|-d] [-f NEW_FILE] [--help|-h]\n"
 329         "\t\t{--mirror-id MIRROR_ID|--component-id|-I COMP_ID|-p POOL}\n"
 330         "\t\t<mirrored file> ...\n"
 331         "\tMIRROR_ID: The numerical unique identifier for a mirror.\n"
 332         "\t           It can be fetched by the 'lfs getstripe' command.\n"
 333         "\tCOMP_ID:   Unique component ID within a mirror.\n"
 334         "\tPOOL:      Components using specified pool.\n"
 335         "\tNEW_FILE:  This option indicates the layout of the split\n"
 336         "\t           mirror will be stored into. If not specified,\n"
 337         "\t           a new file named <mirrored_file>.mirror~MIRROR_ID\n"
 338         "\t           will be used.\n" },
 339         { .pc_name = "read", .pc_func = lfs_mirror_read,
 340           .pc_help = "Read the content of a specified mirror of a file.\n"
 341                 "usage: lfs mirror read {--mirror-id|-N MIRROR_ID}\n"
 342                 "\t\t[--outfile|-o <output_file>] <mirrored_file>\n" },
 343         { .pc_name = "write", .pc_func = lfs_mirror_write,
 344           .pc_help = "Write to a specified mirror of a file.\n"
 345                 "usage: lfs mirror write {--mirror-id|-N MIRROR_ID}\n"
 346                 "\t\t[--inputfile|-i <input_file>] <mirrored_file>\n" },
 347         { .pc_name = "copy", .pc_func = lfs_mirror_copy,
 348           .pc_help = "Copy a specified mirror to other mirror(s) of a file.\n"
 349                 "usage: lfs mirror copy {--read-mirror|-i MIRROR_ID0}\n"
 350                 "\t\t{--write-mirror|-o MIRROR_ID1[,...]} <mirrored_file>\n" },
 351         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 352           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 353                 "usage: lfs mirror resync [--only MIRROR_ID[,...]>]\n"
 354                 "\t\t<mirrored_file> [<mirrored_file2>...]\n" },
 355         { .pc_name = "verify", .pc_func = lfs_mirror_verify,
 356           .pc_help = "Verify mirrored file(s).\n"
 357                 "usage: lfs mirror verify [--only MIRROR_ID[,...]]\n"
 358                 "\t\t[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n" },
 359         { .pc_name = "list-commands", .pc_func = lfs_mirror_list_commands,
 360           .pc_help = "list commands supported by lfs mirror"},
 361         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 362         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 363         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 364         { .pc_help = NULL }
 365 };
 366
 367 /**
 368  * command_t pcc_cmdlist - lfs pcc commands.
 369  */
 370 command_t pcc_cmdlist[] = {
 371         { .pc_name = "attach", .pc_func = lfs_pcc_attach,
 372           .pc_help = "Attach given files to the Persistent Client Cache.\n"
 373                 "usage: lfs pcc attach <--id|-i NUM> <file> ...\n"
 374                 "\t-i: archive id for RW-PCC\n" },
 375         { .pc_name = "attach_fid", .pc_func = lfs_pcc_attach_fid,
 376           .pc_help = "Attach given files into PCC by FID(s).\n"
 377                 "usage: lfs pcc attach_id {--id|-i NUM} {--mnt|-m MOUNTPOINT} FID ...\n"
 378                 "\t-i: archive id for RW-PCC\n"
 379                 "\t-m: Lustre mount point\n" },
 380         { .pc_name = "state", .pc_func = lfs_pcc_state,
 381           .pc_help = "Display the PCC state for given files.\n"
 382                 "usage: lfs pcc state <file> ...\n" },
 383         { .pc_name = "detach", .pc_func = lfs_pcc_detach,
 384           .pc_help = "Detach given files from the Persistent Client Cache.\n"
 385                 "usage: lfs pcc detach <file> ...\n" },
 386         { .pc_name = "detach_fid", .pc_func = lfs_pcc_detach_fid,
 387           .pc_help = "Detach given files from PCC by FID(s).\n"
 388                 "usage: lfs pcc detach_fid <mntpath> <fid>...\n" },
 389         { .pc_name = "list-commands", .pc_func = lfs_pcc_list_commands,
 390           .pc_help = "list commands supported by lfs pcc"},
 391         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 392         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 393         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 394         { .pc_help = NULL }
 395 };
 396
 397 /* all available commands */
 398 command_t cmdlist[] = {
 399         {"setstripe", lfs_setstripe, 0,
 400          "To create a file with specified striping/composite layout, or\n"
 401          "create/replace the default layout on an existing directory:\n"
 402          SSM_CMD_COMMON("setstripe")
 403          "                 [--mode MODE]\n"
 404          "                 <directory|filename>\n"
 405          " or\n"
 406          "To add component(s) to an existing composite file:\n"
 407          SSM_CMD_COMMON("setstripe --component-add")
 408          SSM_HELP_COMMON
 409          "To totally delete the default striping from an existing directory:\n"
 410          "usage: setstripe [--delete|-d] <directory>\n"
 411          " or\n"
 412          "To create a mirrored file or set s default mirror layout on a directory:\n"
 413          "usage: setstripe {--mirror-count|-N}[MIRROR_COUNT] [SETSTRIPE_OPTIONS] <directory|filename>\n"
 414          " or\n"
 415          "To delete the last component(s) from an existing composite file\n"
 416          "(note that this will also delete any data in those components):\n"
 417          "usage: setstripe --component-del [--component-id|-I COMP_ID]\n"
 418          "                               [--component-flags|-F COMP_FLAGS]\n"
 419          "                               <filename>\n"
 420          "\tCOMP_ID:     Unique component ID to delete\n"
 421          "\tCOMP_FLAGS:  'init' indicating all instantiated components\n"
 422          "\t             '^init' indicating all uninstantiated components\n"
 423          "\t-I and -F cannot be specified at the same time\n"
 424          " or\n"
 425          "To set or clear flags on a specific component\n"
 426          "(note that this command can only be applied to mirrored files:\n"
 427          "usage: setstripe --comp-set {-I COMP_ID|--comp-flags=COMP_FLAGS}\n"
 428          "                            <filename>\n"
 429          " or\n"
 430          "To create a file with a foreign (free format) layout:\n"
 431          "usage: setstripe --foreign[=FOREIGN_TYPE]\n"
 432          "                 --xattr|-x LAYOUT_STRING [--flags HEX]\n"
 433          "                 [--mode MODE] <filename>\n"},
 434         {"getstripe", lfs_getstripe, 0,
 435          "To list the layout pattern for a given file or files in a\n"
 436          "directory or recursively for all files in a directory tree.\n"
 437          "usage: getstripe [--ost|-O UUID] [--quiet|-q] [--verbose|-v]\n"
 438          "                 [--stripe-count|-c] [--stripe-index|-i] [--fid|-F]\n"
 439          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 440          "                 [--mdt-index|-m] [--recursive|-r] [--raw|-R]\n"
 441          "                 [--layout|-L] [--generation|-g] [--yaml|-y]\n"
 442          "                 [--help|-h] [--component-id|-I[=COMP_ID]]\n"
 443          "                 [--component-flags[=COMP_FLAGS]]\n"
 444          "                 [--component-count]\n"
 445          "                 [--extension-size|--ext-size|-z]\n"
 446          "                 [--component-start[=[+-]COMP_START]]\n"
 447          "                 [--component-end[=[+-]COMP_END]|-E[[+-]comp_end]]\n"
 448          "                 [[!] --mirror-index=[+-]INDEX |\n"
 449          "                 [!] --mirror-id=[+-]MIRROR_ID] [--mirror-count|-N]\n"
 450          "                 <directory|filename> ..."},
 451         {"setdirstripe", lfs_setdirstripe, 0,
 452          "Create striped directory on specified MDT, same as mkdir.\n"
 453          "May be restricted to root or group users, depending on settings.\n"
 454          "usage: setdirstripe [OPTION] <directory>\n"
 455          SETDIRSTRIPE_USAGE},
 456         {"getdirstripe", lfs_getdirstripe, 0,
 457          "To list the layout pattern info for a given directory\n"
 458          "or recursively for all directories in a directory tree.\n"
 459          "usage: getdirstripe [--mdt-count|-c] [--mdt-index|-m|-i]\n"
 460          "                    [--help|-h] [--mdt-hash|-H] [--obd|-O UUID]\n"
 461          "                    [--recursive|-r] [--yaml|-y]\n"
 462          "                    [--verbose|-v] [--default|-D]\n"
 463          "                    [--max-inherit|-X]\n"
 464          "                    [--max-inherit-rr] <dir> ..."},
 465         {"mkdir", lfs_setdirstripe, 0,
 466          "Create striped directory on specified MDT, same as setdirstripe.\n"
 467          "usage: mkdir [OPTION] <directory>\n"
 468          SETDIRSTRIPE_USAGE},
 469         {"rm_entry", lfs_rmentry, 0,
 470          "To remove the name entry of the remote directory. Note: This\n"
 471          "command will only delete the name entry, i.e. the remote directory\n"
 472          "will become inaccessable after this command. This can only be done\n"
 473          "by the administrator\n"
 474          "usage: rm_entry <dir>\n"},
 475         {"unlink_foreign", lfs_unlink_foreign, 0,
 476          "To remove the foreign file/dir.\n"
 477          "Note: This is for files/dirs prevented to be removed using\n"
 478          "unlink/rmdir, but works also for regular ones\n"
 479          "usage: unlink_foreign <foreign_dir/file> [<foreign_dir/file> ...]\n"},
 480         {"pool_list", lfs_poollist, 0,
 481          "List pools or pool OSTs\n"
 482          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 483         {"find", lfs_find, 0,
 484          "find files matching given attributes recursively in directory tree.\n"
 485          "usage: find <directory|filename> ...\n"
 486          "     [[!] --atime|-A [+-]N[smhdwy]] [[!] --ctime|-C [+-]N[smhdwy]]\n"
 487          "     [[!] --mtime|-M [+-]N[smhdwy]]\n"
 488          "     [[!] --btime|--Btime|-B [+-]N[smhdwy]] [--help|-h]\n"
 489          "     [[!] --newer[XY] <reference>] [[!] --blocks|-b N]\n"
 490          "     [--maxdepth|-D N] [[!] --mdt-index|--mdt|-m <uuid|index,...>]\n"
 491          "     [[!] --name|-n <pattern>] [[!] --ost|-O <uuid|index,...>]\n"
 492          "     [[!] --perm [/-]mode] [[!] --pool <pool>] [--print|-P]\n"
 493          "     [--print0|-0] [[!] --projid <projid>]\n"
 494          "     [[!] --size|-s [+-]N[bkMGTPE]]\n"
 495          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 496          "     [[!] --stripe-index|-i <index,...>]\n"
 497          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 498          "     [[!] --extension-size|--ext-size|-z [+-]N[kMGT]]\n"
 499          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
 500          "     [[!] --uid|-u|--user|-U <uid>|<uname>]\n"
 501          "     [[!] --layout|-L released,raid0,mdt]\n"
 502          "     [[!] --foreign[=<foreign_type>]]\n"
 503          "     [[!] --component-count [+-]<comp_cnt>]\n"
 504          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 505          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 506          "     [[!] --component-flags {init,stale,prefer,offline,nosync,extension}]\n"
 507          "     [[!] --mirror-count|-N [+-]<n>]\n"
 508          "     [[!] --mirror-state <[^]state>]\n"
 509          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 510          "     [[!] --mdt-hash|-H <[^][blm],[^]fnv_1a_64,all_char,crush,...>\n"
 511          "     [[!] --mdt-index|-m <uuid|index,...>]\n"
 512          "\t !: used before an option indicates 'NOT' requested attribute\n"
 513          "\t -: used before a value indicates less than requested value\n"
 514          "\t +: used before a value indicates more than requested value\n"
 515          "\t ^: used before a flag indicates to exclude it\n"},
 516         {"check", lfs_check, 0,
 517          "Display the status of MGTs, MDTs or OSTs (as specified in the command)\n"
 518          "or all the servers (MGTs, MDTs and OSTs).\n"
 519          "usage: check {mgts|osts|mdts|all}"},
 520         {"osts", lfs_osts, 0, "list OSTs connected to client "
 521          "[for specified path only]\n" "usage: osts [path]"},
 522         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 523          "[for specified path only]\n" "usage: mdts [path]"},
 524         {"df", lfs_df, 0,
 525          "report filesystem disk space usage or inodes usage "
 526          "of each MDS and all OSDs or a batch belonging to a specific pool.\n"
 527          "Usage: df [--inodes|-i] [--human-readable|-h] [--lazy|-l]\n"
 528          "          [--pool|-p <fsname>[.<pool>]] [path]"},
 529         {"getname", lfs_getname, 0,
 530          "list instances and specified mount points [for specified path only]\n"
 531          "Usage: getname [--help|-h] [--instance|-i] [--fsname|-n] [path ...]"},
 532 #ifdef HAVE_SYS_QUOTA_H
 533         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 534          "usage: setquota {-u|-g|-p} UNAME|UID|GNAME|GID|PROJID\n"
 535          "                -b BLOCK_SOFTLIMIT -B BLOCK_HARDLIMIT\n"
 536          "                -i INODE_SOFTLIMIT -I INODE_HARDLIMIT <filesystem>\n"
 537          "       setquota {-u|--user USER|UID|-g|--group GROUP|GID|-p|--projid PROJID}\n"
 538          "                [--block-softlimit BLOCK_SOFTLIMIT]\n"
 539          "                [--block-hardlimit BLOCK_HARDLIMIT]\n"
 540          "                [--inode-softlimit INODE_SOFTLIMIT]\n"
 541          "                [--inode-hardlimit INODE_HARDLIMIT] <filesystem>\n"
 542          "       setquota [-t] {-h|--help|-u|--user|-g|--group|-p|--projid}\n"
 543          "                [--block-grace 'notify'|BLOCK_GRACE]\n"
 544          "                [--inode-grace 'notify'|INODE_GRACE] <filesystem>\n"
 545          "       setquota {-U|-G|-P}\n"
 546          "                -b BLOCK_SOFTLIMIT -B BLOCK_HARDLIMIT\n"
 547          "                -i INODE_SOFTLIMIT -I INODE_HARDLIMIT <filesystem>\n"
 548          "       setquota {-U|--default-usr|-G|--default-grp|-P|--default-prj}\n"
 549          "                [--block-softlimit BLOCK_SOFTLIMIT]\n"
 550          "                [--block-hardlimit BLOCK_HARDLIMIT]\n"
 551          "                [--inode-softlimit INODE_SOFTLIMIT]\n"
 552          "                [--inode-hardlimit INODE_HARDLIMIT] <filesystem>\n"
 553          "       setquota {-u|-g|-p} UNAME|UID|GNAME|GID|PROJID\n"
 554          "                {-d|--default}\n"
 555          "       -b can be used instead of --block-softlimit/--block-grace\n"
 556          "       -B can be used instead of --block-hardlimit\n"
 557          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 558          "       -I can be used instead of --inode-hardlimit\n"
 559          "       -d can be used instead of --default\n\n"
 560          "Note: The total quota space will be split into many qunits and\n"
 561          "      balanced over all server targets, the minimal qunit size is\n"
 562          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 563          "      The maximum quota grace time is 2^48 - 1 seconds.\n\n"
 564          "      Quota space rebalancing process will stop when this mininum\n"
 565          "      value is reached. As a result, quota exceeded can be returned\n"
 566          "      while many targets still have 1MB or 1K inodes of spare\n"
 567          "      quota space.\n\n"
 568          "      When setting the grace time, 'notify' can be used as grace to\n"
 569          "      be notified after the quota is over soft limit but prevents\n"
 570          "      the soft limit from becoming the hard limit."},
 571         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 572          "usage: quota [-q] [-v] [-h] [-o OBD_UUID|-i MDT_IDX|-I OST_IDX]\n"
 573          "             [{-u|-g|-p} UNAME|UID|GNAME|GID|PROJID] <filesystem>\n"
 574          "       quota [-o OBD_UUID|-i MDT_IDX|-I OST_IDX] -t {-u|-g|-p} <filesystem>\n"
 575         "        quota [-q] [-v] [h] {-U|-G|-P} <filesystem>"},
 576         {"project", lfs_project, 0,
 577          "Change or list project attribute for specified file or directory.\n"
 578          "usage: project [-d|-r] <file|directory...>\n"
 579          "         list project ID and flags on file(s) or directories\n"
 580          "       project [-p id] [-s] [-r] <file|directory...>\n"
 581          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 582          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 583          "         check project ID and flags on file(s) or directories, print outliers\n"
 584          "       project -C [-r] [-k] <file|directory...>\n"
 585          "         clear the project inherit flag and ID on the file or directory\n"
 586         },
 587 #endif
 588         {"flushctx", lfs_flushctx, 0,
 589          "Flush security context for current user.\n"
 590          "usage: flushctx [-k] [-r] [mountpoint...]"},
 591         {"changelog", lfs_changelog, 0,
 592          "Show the metadata changes on an MDT."
 593          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 594         {"changelog_clear", lfs_changelog_clear, 0,
 595          "Indicate that old changelog records up to <endrec> are no longer of "
 596          "interest to consumer <id>, allowing the system to free up space.\n"
 597          "An <endrec> of 0 means all records.\n"
 598          "usage: changelog_clear <mdtname> <id> <endrec>"},
 599         {"fid2path", lfs_fid2path, 0,
 600          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 601          "specify link number <linkno>.\n"
 602          "usage: fid2path [--print-fid|-f] [--print-link|-c] [--link|-l <linkno>] "
 603          "<fsname|root> <fid>..."},
 604         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 605          "usage: path2fid [--parents] <path> ..."},
 606         {"rmfid", lfs_rmfid, 0, "Remove file(s) by FID(s)\n"
 607          "usage: rmfid <fsname|rootpath> <fid> ..."},
 608         {"data_version", lfs_data_version, 0, "Display file data version for "
 609          "a given path.\n" "usage: data_version [-n|-r|-w] <path>"},
 610         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 611          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 612         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 613          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 614          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 615         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 616          "files.\n"
 617          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 618          "[--archived] [--lost] <file> ..."},
 619         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 620          "given files.\n" "usage: hsm_action <file> ..."},
 621         {"hsm_archive", lfs_hsm_archive, 0,
 622          "Archive file to external storage.\n"
 623          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 624          "<file> ..."},
 625         {"hsm_restore", lfs_hsm_restore, 0,
 626          "Restore file from external storage.\n"
 627          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 628         {"hsm_release", lfs_hsm_release, 0,
 629          "Release files from Lustre.\n"
 630          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 631         {"hsm_remove", lfs_hsm_remove, 0,
 632          "Remove file copy from external storage.\n"
 633          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 634          "[--archive NUM]\n"
 635          "                  (FILE [FILE ...] | "
 636          "--mntpath MOUNTPATH FID [FID ...])\n"
 637          "\n"
 638          "Note: To remove an archived copy of a file already deleted from a "
 639          "Lustre FS, the\n"
 640          "--mntpath option and a list of FIDs must be specified"
 641         },
 642         {"hsm_cancel", lfs_hsm_cancel, 0,
 643          "Cancel requests related to specified files.\n"
 644          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 645         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 646          "usage: swap_layouts <path1> <path2>"},
 647         {"migrate", lfs_setstripe_migrate, 0,
 648          "migrate a directory between MDTs.\n"
 649          "usage: migrate [--mdt-count|-c STRIPE_COUNT]\n"
 650          "               [--mdt-hash|-H HASH_TYPE]\n"
 651          "               [--mdt-index|-m START_MDT_INDEX] [--verbose|-v]\n"
 652          "               <directory>\n"
 653          "\tmdt:        MDTs to stripe over, if only one MDT is specified\n"
 654          "                      it's the MDT index of first stripe\n"
 655          "\tmdt_count:  number of MDTs to stripe a directory over\n"
 656          "\tmdt_hash:   hash type of the striped directory. mdt types:\n"
 657          "              all_char  (type 1)sum of characters % MDT_COUNT\n"
 658          "              fnv_1a_64 (type 2)FNV-1a hash algorithm (default)\n"
 659          "              crush     (type 3)CRUSH hash algorithm\n"
 660          "\n"
 661          "migrate file objects from one OST "
 662          "layout\nto another (may be not safe with concurent writes).\n"
 663          "usage: migrate [--stripe-count|-c STRIPE_COUNT]\n"
 664          "               [--overstripe-count|-C STRIPE_COUNT]\n"
 665          "               [--stripe-index|-i START_OST_INDEX]\n"
 666          "               [--stripe-size|-S STRIPE_SIZE]\n"
 667          "               [--pool|-p <pool_name>] [--ost|-o OST_INDICES]\n"
 668          "               [--block|-b] [--non-block|-n] [--non-direct|-D]\n"
 669          "               <file|directory>\n"
 670          "\tstripe_count:   number of OSTs to stripe a file over\n"
 671          "\t                Using -C instead of -c allows overstriping, which\n"
 672          "\t                will place more than one stripe per OST if\n"
 673          "\t                stripe_count is greater than the number of OSTs\n"
 674          "\tstripe_ost_index: index of the first OST to stripe a file over\n"
 675          "\tstripe_size:      number of bytes to store before moving to the next OST\n"
 676          "\tpool_name:        name of the predefined pool of OSTs\n"
 677          "\tost_indices:      OSTs to stripe over, in order\n"
 678          "\tblock:        Block file access during data migration (default)\n"
 679          "\tnon-block:    Abort migrations if concurrent access is detected\n"
 680          "\tnon-direct:       do not use direct I/O to copy file contents.\n"},
 681         {"mv", lfs_mv, 0,
 682          "To move directories between MDTs. This command is deprecated, "
 683          "use \"migrate\" instead.\n"
 684          "usage: mv <directory|filename> [--mdt-index|-m MDT_INDEX] "
 685          "[--verbose|-v]\n"},
 686         {"ladvise", lfs_ladvise, 0,
 687          "Provide servers with advice about access patterns for a file.\n"
 688          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 689          "               [--background|-b] [--unset|-u]\n\n"
 690          "               {--end|-e END[kMGT]|--length|-l LENGTH[kMGT]}\n"
 691          "               {[--mode|-m [READ,WRITE]}\n"
 692          "               <file> ...\n"},
 693         {"mirror", lfs_mirror, mirror_cmdlist,
 694          "lfs commands used to manage files with mirrored components:\n"
 695          "lfs mirror create - create a mirrored file or directory\n"
 696          "lfs mirror extend - add mirror(s) to an existing file\n"
 697          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 698          "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
 699          "lfs mirror read   - read a mirror content of a mirrored file\n"
 700          "lfs mirror write  - write to a mirror of a mirrored file\n"
 701          "lfs mirror copy   - copy a mirror to other mirror(s) of a file\n"
 702          "lfs mirror verify - verify mirrored file(s)\n"},
 703         {"getsom", lfs_getsom, 0, "To list the SOM info for a given file.\n"
 704          "usage: getsom [-s] [-b] [-f] <path>\n"
 705          "\t-s: Only show the size value of the SOM data for a given file\n"
 706          "\t-b: Only show the blocks value of the SOM data for a given file\n"
 707          "\t-f: Only show the flags value of the SOM data for a given file\n"},
 708         {"heat_get", lfs_heat_get, 0,
 709          "To get heat of files.\n"
 710          "usage: heat_get <file> ...\n"},
 711         {"heat_set", lfs_heat_set, 0,
 712          "To set heat flags of files.\n"
 713          "usage: heat_set [--clear|-c] [--off|-o] [--on|-O] <file> ...\n"
 714          "\t--clear|-c: Clear file heat for given files\n"
 715          "\t--off|-o:   Turn off file heat for given files\n"
 716          "\t--on|-O:    Turn on file heat for given files\n"},
 717         {"pcc", lfs_pcc, pcc_cmdlist,
 718          "lfs commands used to interact with PCC features:\n"
 719          "lfs pcc attach - attach given files to Persistent Client Cache\n"
 720          "lfs pcc attach_fid - attach given files into PCC by FID(s)\n"
 721          "lfs pcc state  - display the PCC state for given files\n"
 722          "lfs pcc detach - detach given files from Persistent Client Cache\n"
 723          "lfs pcc detach_fid - detach given files from PCC by FID(s)\n"},
 724         {"help", Parser_help, 0, "help"},
 725         {"exit", Parser_quit, 0, "quit"},
 726         {"quit", Parser_quit, 0, "quit"},
 727         {"--version", Parser_version, 0,
 728          "output build version of the utility and exit"},
 729         {"--list-commands", lfs_list_commands, 0,
 730          "list commands supported by the utility and exit"},
 731         { 0, 0, 0, NULL }
 732 };
 733
 734 static int check_hashtype(const char *hashtype)
 735 {
 736         int type_num = atoi(hashtype);
 737         int i;
 738
 739         /* numeric hash type */
 740         if (hashtype && strlen(hashtype) == 1 &&
 741             (type_num > 0 && type_num < LMV_HASH_TYPE_MAX))
 742                 return type_num;
 743         /* string hash type */
 744         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 745                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 746                         return i;
 747
 748         return 0;
 749 }
 750
 751 static uint32_t check_foreign_type_name(const char *foreign_type_name)
 752 {
 753         uint32_t i;
 754
 755         for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
 756                 if (!lu_foreign_types[i].lft_name)
 757                         break;
 758                 if (strcmp(foreign_type_name,
 759                            lu_foreign_types[i].lft_name) == 0)
 760                         return lu_foreign_types[i].lft_type;
 761         }
 762
 763         return LU_FOREIGN_TYPE_UNKNOWN;
 764 }
 765
 766 static const char *error_loc = "syserror";
 767
 768 enum {
 769         MIGRATION_NONBLOCK      = 0x0001,
 770         MIGRATION_MIRROR        = 0x0002,
 771         MIGRATION_NONDIRECT     = 0x0004,
 772         MIGRATION_VERBOSE       = 0x0008,
 773 };
 774
 775 static int
 776 migrate_open_files(const char *name, __u64 migration_flags,
 777                    const struct llapi_stripe_param *param,
 778                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 779 {
 780         int                      fd = -1;
 781         int                      fdv = -1;
 782         int                      rflags;
 783         int                      mdt_index;
 784         int                      random_value;
 785         char                     parent[PATH_MAX];
 786         char                     volatile_file[PATH_MAX];
 787         char                    *ptr;
 788         int                      rc;
 789         struct stat              st;
 790         struct stat              stv;
 791
 792         if (!param && !layout) {
 793                 error_loc = "layout information";
 794                 return -EINVAL;
 795         }
 796
 797         /* search for file directory pathname */
 798         if (strlen(name) > sizeof(parent) - 1) {
 799                 error_loc = "source file name";
 800                 return -ERANGE;
 801         }
 802
 803         strncpy(parent, name, sizeof(parent));
 804         ptr = strrchr(parent, '/');
 805         if (!ptr) {
 806                 if (!getcwd(parent, sizeof(parent))) {
 807                         error_loc = "getcwd";
 808                         return -errno;
 809                 }
 810         } else {
 811                 if (ptr == parent) /* leading '/' */
 812                         ptr = parent + 1;
 813                 *ptr = '\0';
 814         }
 815
 816         /* open file, direct io */
 817         /* even if the file is only read, WR mode is nedeed to allow
 818          * layout swap on fd
 819          */
 820         rflags = O_RDWR | O_NOATIME;
 821         if (!(migration_flags & MIGRATION_NONDIRECT))
 822                 rflags |= O_DIRECT;
 823         fd = open(name, rflags);
 824         if (fd < 0) {
 825                 rc = -errno;
 826                 error_loc = "cannot open source file";
 827                 return rc;
 828         }
 829
 830         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 831         if (rc < 0) {
 832                 error_loc = "cannot get MDT index";
 833                 goto out;
 834         }
 835
 836         do {
 837                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 838                 mode_t open_mode = S_IRUSR | S_IWUSR;
 839
 840                 random_value = random();
 841                 rc = snprintf(volatile_file, sizeof(volatile_file),
 842                               "%s/%s:%.4X:%.4X:fd=%.2d", parent,
 843                               LUSTRE_VOLATILE_HDR, mdt_index,
 844                               random_value, fd);
 845                 if (rc >= sizeof(volatile_file)) {
 846                         rc = -ENAMETOOLONG;
 847                         break;
 848                 }
 849
 850                 /* create, open a volatile file, use caching (ie no directio) */
 851                 if (layout) {
 852                         /* Returns -1 and sets errno on error: */
 853                         fdv = llapi_layout_file_open(volatile_file, open_flags,
 854                                                      open_mode, layout);
 855                         if (fdv < 0)
 856                                 fdv = -errno;
 857                 } else {
 858                         /* Does the right thing on error: */
 859                         fdv = llapi_file_open_param(volatile_file, open_flags,
 860                                                     open_mode, param);
 861                 }
 862         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 863
 864         if (rc < 0) {
 865                 error_loc = "cannot create volatile file";
 866                 goto out;
 867         }
 868
 869         /*
 870          * In case the MDT does not support creation of volatile files
 871          * we should try to unlink it.
 872          */
 873         (void)unlink(volatile_file);
 874
 875         /*
 876          * Not-owner (root?) special case.
 877          * Need to set owner/group of volatile file like original.
 878          * This will allow to pass related check during layout_swap.
 879          */
 880         rc = fstat(fd, &st);
 881         if (rc != 0) {
 882                 rc = -errno;
 883                 error_loc = "cannot stat source file";
 884                 goto out;
 885         }
 886
 887         rc = fstat(fdv, &stv);
 888         if (rc != 0) {
 889                 rc = -errno;
 890                 error_loc = "cannot stat volatile";
 891                 goto out;
 892         }
 893
 894         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 895                 rc = fchown(fdv, st.st_uid, st.st_gid);
 896                 if (rc != 0) {
 897                         rc = -errno;
 898                         error_loc = "cannot change ownwership of volatile";
 899                         goto out;
 900                 }
 901         }
 902
 903 out:
 904         if (rc < 0) {
 905                 if (fd > 0)
 906                         close(fd);
 907                 if (fdv > 0)
 908                         close(fdv);
 909         } else {
 910                 *fd_src = fd;
 911                 *fd_tgt = fdv;
 912                 error_loc = NULL;
 913         }
 914         return rc;
 915 }
 916
 917 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 918 {
 919         struct llapi_layout *layout;
 920         size_t buf_size = 4 * 1024 * 1024;
 921         void *buf = NULL;
 922         off_t pos = 0;
 923         off_t data_end = 0;
 924         size_t page_size = sysconf(_SC_PAGESIZE);
 925         bool sparse;
 926         int rc;
 927
 928         layout = llapi_layout_get_by_fd(fd_src, 0);
 929         if (layout) {
 930                 uint64_t stripe_size;
 931
 932                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 933                 if (rc == 0)
 934                         buf_size = stripe_size;
 935
 936                 llapi_layout_free(layout);
 937         }
 938
 939         /* Use a page-aligned buffer for direct I/O */
 940         rc = posix_memalign(&buf, page_size, buf_size);
 941         if (rc != 0)
 942                 return -rc;
 943
 944         sparse = llapi_file_is_sparse(fd_src);
 945         if (sparse) {
 946                 rc = ftruncate(fd_dst, pos);
 947                 if (rc < 0) {
 948                         rc = -errno;
 949                         return rc;
 950                 }
 951         }
 952
 953         while (1) {
 954                 off_t data_off;
 955                 size_t to_read, to_write;
 956                 ssize_t rsize;
 957
 958                 if (sparse && pos >= data_end) {
 959                         size_t data_size;
 960
 961                         data_off = llapi_data_seek(fd_src, pos, &data_size);
 962                         if (data_off < 0) {
 963                                 /* Non-fatal, switch to full copy */
 964                                 sparse = false;
 965                                 continue;
 966                         }
 967                         /* hole at the end of file, truncate up to it */
 968                         if (!data_size) {
 969                                 rc = ftruncate(fd_dst, data_off);
 970                                 if (rc < 0)
 971                                         goto out;
 972                         }
 973                         pos = data_off & ~(page_size - 1);
 974                         data_end = data_off + data_size;
 975                         to_read = ((data_end - pos - 1) | (page_size - 1)) + 1;
 976                         to_read = MIN(to_read, buf_size);
 977                 } else {
 978                         to_read = buf_size;
 979                 }
 980
 981                 if (check_file) {
 982                         rc = check_file(fd_src);
 983                         if (rc < 0)
 984                                 goto out;
 985                 }
 986
 987                 rsize = pread(fd_src, buf, to_read, pos);
 988                 if (rsize < 0) {
 989                         rc = -errno;
 990                         goto out;
 991                 }
 992                 /* EOF */
 993                 if (rsize == 0)
 994                         break;
 995
 996                 to_write = rsize;
 997                 while (to_write > 0) {
 998                         ssize_t written;
 999
1000                         written = pwrite(fd_dst, buf, to_write, pos);
1001                         if (written < 0) {
1002                                 rc = -errno;
1003                                 goto out;
1004                         }
1005                         pos += written;
1006                         to_write -= written;
1007                 }
1008                 if (rc || rsize < to_read)
1009                         break;
1010         }
1011
1012         rc = fsync(fd_dst);
1013         if (rc < 0)
1014                 rc = -errno;
1015 out:
1016         /* Try to avoid page cache pollution after migration. */
1017         (void)posix_fadvise(fd_src, 0, 0, POSIX_FADV_DONTNEED);
1018         (void)posix_fadvise(fd_dst, 0, 0, POSIX_FADV_DONTNEED);
1019
1020         free(buf);
1021         return rc;
1022 }
1023
1024 static int migrate_set_timestamps(int fd, const struct stat *st)
1025 {
1026         struct timeval tv[2] = {
1027                 {.tv_sec = st->st_atime},
1028                 {.tv_sec = st->st_mtime}
1029         };
1030
1031         return futimes(fd, tv);
1032 }
1033
1034 static int migrate_block(int fd, int fdv)
1035 {
1036         struct stat st;
1037         __u64   dv1;
1038         int     gid;
1039         int     rc;
1040         int     rc2;
1041
1042         rc = fstat(fd, &st);
1043         if (rc < 0) {
1044                 error_loc = "cannot stat source file";
1045                 return -errno;
1046         }
1047
1048         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
1049         if (rc < 0) {
1050                 error_loc = "cannot get dataversion";
1051                 return rc;
1052         }
1053
1054         do
1055                 gid = random();
1056         while (gid == 0);
1057
1058         /*
1059          * The grouplock blocks all concurrent accesses to the file.
1060          * It has to be taken after llapi_get_data_version as it would
1061          * block it too.
1062          */
1063         rc = llapi_group_lock(fd, gid);
1064         if (rc < 0) {
1065                 error_loc = "cannot get group lock";
1066                 return rc;
1067         }
1068
1069         rc = migrate_copy_data(fd, fdv, NULL);
1070         if (rc < 0) {
1071                 error_loc = "data copy failed";
1072                 goto out_unlock;
1073         }
1074
1075         /* Make sure we keep original atime/mtime values */
1076         rc = migrate_set_timestamps(fdv, &st);
1077         if (rc < 0) {
1078                 error_loc = "set target file timestamp failed";
1079                 goto out_unlock;
1080         }
1081
1082         /*
1083          * swap layouts
1084          * for a migration we need to check data version on file did
1085          * not change.
1086          *
1087          * Pass in gid=0 since we already own grouplock.
1088          */
1089         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
1090                                            SWAP_LAYOUTS_CHECK_DV1);
1091         if (rc == -EAGAIN) {
1092                 error_loc = "file changed";
1093                 goto out_unlock;
1094         } else if (rc < 0) {
1095                 error_loc = "cannot swap layout";
1096                 goto out_unlock;
1097         }
1098
1099 out_unlock:
1100         rc2 = llapi_group_unlock(fd, gid);
1101         if (rc2 < 0 && rc == 0) {
1102                 error_loc = "unlock group lock";
1103                 rc = rc2;
1104         }
1105
1106         return rc;
1107 }
1108
1109 /**
1110  * Internal helper for migrate_copy_data(). Check lease and report error if
1111  * need be.
1112  *
1113  * \param[in]  fd           File descriptor on which to check the lease.
1114  *
1115  * \retval 0       Migration can keep on going.
1116  * \retval -errno  Error occurred, abort migration.
1117  */
1118 static int check_lease(int fd)
1119 {
1120         int rc;
1121
1122         rc = llapi_lease_check(fd);
1123         if (rc > 0)
1124                 return 0; /* llapi_check_lease returns > 0 on success. */
1125
1126         return -EBUSY;
1127 }
1128
1129 static int migrate_nonblock(int fd, int fdv)
1130 {
1131         struct stat st;
1132         __u64   dv1;
1133         __u64   dv2;
1134         int     rc;
1135
1136         rc = fstat(fd, &st);
1137         if (rc < 0) {
1138                 error_loc = "cannot stat source file";
1139                 return -errno;
1140         }
1141
1142         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
1143         if (rc < 0) {
1144                 error_loc = "cannot get data version";
1145                 return rc;
1146         }
1147
1148         rc = migrate_copy_data(fd, fdv, check_lease);
1149         if (rc < 0) {
1150                 error_loc = "data copy failed";
1151                 return rc;
1152         }
1153
1154         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
1155         if (rc != 0) {
1156                 error_loc = "cannot get data version";
1157                 return rc;
1158         }
1159
1160         if (dv1 != dv2) {
1161                 rc = -EAGAIN;
1162                 error_loc = "source file changed";
1163                 return rc;
1164         }
1165
1166         /* Make sure we keep original atime/mtime values */
1167         rc = migrate_set_timestamps(fdv, &st);
1168         if (rc < 0) {
1169                 error_loc = "set target file timestamp failed";
1170                 return -errno;
1171         }
1172         return 0;
1173 }
1174
1175 static
1176 int lfs_layout_compid_by_pool(char *fname, const char *pool, int *comp_id)
1177 {
1178         struct pool_to_id_cbdata data = { .pool = pool };
1179         struct llapi_layout *layout = NULL;
1180         int rc;
1181
1182         layout = llapi_layout_get_by_path(fname, 0);
1183         if (!layout) {
1184                 fprintf(stderr,
1185                         "error %s: file '%s' couldn't get layout: rc=%d\n",
1186                         progname, fname, errno);
1187                 rc = -errno;
1188                 goto free_layout;
1189         }
1190         rc = llapi_layout_sanity(layout, fname, false, true);
1191         if (rc < 0) {
1192                 llapi_layout_sanity_perror(errno);
1193                 goto free_layout;
1194         }
1195         rc = llapi_layout_comp_iterate(layout, find_comp_id_by_pool, &data);
1196         if (rc < 0)
1197                 goto free_layout;
1198
1199         *comp_id = data.id;
1200         rc = 0;
1201
1202 free_layout:
1203         if (layout)
1204                 llapi_layout_free(layout);
1205         return rc;
1206 }
1207
1208 static int lfs_component_set(char *fname, int comp_id, const char *pool,
1209                              __u32 flags, __u32 neg_flags)
1210 {
1211         __u32 ids[2];
1212         __u32 flags_array[2];
1213         size_t count = 0;
1214         int rc;
1215
1216         if (!comp_id) {
1217                 if (pool == NULL) {
1218                         fprintf(stderr,
1219                                 "error %s: neither component id nor pool is specified\n",
1220                                 progname);
1221                         return -EINVAL;
1222                 }
1223                 rc = lfs_layout_compid_by_pool(fname, pool, &comp_id);
1224                 if (rc)
1225                         return rc;
1226         }
1227
1228         if (flags) {
1229                 ids[count] = comp_id;
1230                 flags_array[count] = flags;
1231                 ++count;
1232         }
1233
1234         if (neg_flags) {
1235                 if (neg_flags & LCME_FL_STALE) {
1236                         fprintf(stderr,
1237                                 "%s: cannot clear 'stale' flags from component. Please use lfs-mirror-resync(1) instead\n",
1238                                 progname);
1239                         return -EINVAL;
1240                 }
1241
1242                 ids[count] = comp_id;
1243                 flags_array[count] = neg_flags | LCME_FL_NEG;
1244                 ++count;
1245         }
1246
1247         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
1248         if (rc) {
1249                 if (errno == EUCLEAN) {
1250                         rc = -errno;
1251                         fprintf(stderr,
1252                                 "%s: cannot set 'stale' flag on component '%#x' of the last non-stale mirror of '%s'\n",
1253                                 progname, comp_id, fname);
1254                 } else {
1255                         fprintf(stderr,
1256                                 "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
1257                                 progname, comp_id, fname, flags, neg_flags);
1258                 }
1259         }
1260
1261         return rc;
1262 }
1263
1264 static int lfs_component_del(char *fname, __u32 comp_id,
1265                              __u32 flags, __u32 neg_flags)
1266 {
1267         int     rc = 0;
1268
1269         if (flags && neg_flags)
1270                 return -EINVAL;
1271
1272         if (!flags && neg_flags)
1273                 flags = neg_flags | LCME_FL_NEG;
1274
1275         if ((flags && comp_id) || (!flags && !comp_id))
1276                 return -EINVAL;
1277
1278         if (flags) {
1279                 if (flags & ~LCME_KNOWN_FLAGS) {
1280                         fprintf(stderr,
1281                                 "%s setstripe: unknown flags %#x\n",
1282                                 progname, flags);
1283                         return -EINVAL;
1284                 }
1285         } else if (comp_id > LCME_ID_MAX) {
1286                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
1287                         progname, comp_id);
1288                 return -EINVAL;
1289         }
1290
1291         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
1292         if (rc)
1293                 fprintf(stderr,
1294                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
1295                         progname, comp_id, fname, strerror(errno));
1296         return rc;
1297 }
1298
1299 static int lfs_component_add(char *fname, struct llapi_layout *layout)
1300 {
1301         int     rc;
1302
1303         if (!layout)
1304                 return -EINVAL;
1305
1306         rc = llapi_layout_file_comp_add(fname, layout);
1307         if (rc)
1308                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1309                         fname, strerror(errno));
1310         return rc;
1311 }
1312
1313 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1314                                 struct llapi_layout *layout)
1315 {
1316         struct stat     st;
1317         int     fd;
1318
1319         if (!layout)
1320                 return -EINVAL;
1321
1322         fd = lstat(fname, &st);
1323         if (fd == 0 && S_ISDIR(st.st_mode))
1324                 open_flags = O_DIRECTORY | O_RDONLY;
1325
1326         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1327         if (fd < 0)
1328                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1329                         S_ISDIR(st.st_mode) ?
1330                                 "set default composite layout for" :
1331                                 "create composite file",
1332                         fname, strerror(errno));
1333         return fd;
1334 }
1335
1336 static int lfs_migrate(char *name, __u64 migration_flags,
1337                        struct llapi_stripe_param *param,
1338                        struct llapi_layout *layout)
1339 {
1340         struct llapi_layout *existing;
1341         uint64_t dom_new, dom_cur;
1342         int fd = -1;
1343         int fdv = -1;
1344         int rc;
1345
1346         rc = migrate_open_files(name, migration_flags, param, layout,
1347                                 &fd, &fdv);
1348         if (rc < 0)
1349                 goto out;
1350
1351         rc = llapi_layout_dom_size(layout, &dom_new);
1352         if (rc) {
1353                 error_loc = "cannot get new layout DoM size";
1354                 goto out;
1355         }
1356         /* special case for migration to DOM layout*/
1357         existing = llapi_layout_get_by_fd(fd, 0);
1358         if (!existing) {
1359                 error_loc = "cannot get existing layout";
1360                 goto out;
1361         }
1362
1363         rc = llapi_layout_dom_size(existing, &dom_cur);
1364         if (rc) {
1365                 error_loc = "cannot get current layout DoM size";
1366                 goto out;
1367         }
1368
1369         /*
1370          * if file has DoM layout already then migration is possible to
1371          * the new layout with the same DoM component via swap layout,
1372          * if new layout used bigger DOM size, then mirroring is used
1373          */
1374         if (dom_new > dom_cur) {
1375                 rc = lfs_migrate_to_dom(fd, fdv, name, migration_flags, param,
1376                                         layout);
1377                 if (rc)
1378                         error_loc = "cannot migrate to DOM layout";
1379                 goto out_closed;
1380         }
1381
1382         if (!(migration_flags & MIGRATION_NONBLOCK)) {
1383                 /*
1384                  * Blocking mode (forced if servers do not support file lease).
1385                  * It is also the default mode, since we cannot distinguish
1386                  * between a broken lease and a server that does not support
1387                  * atomic swap/close (LU-6785)
1388                  */
1389                 rc = migrate_block(fd, fdv);
1390                 goto out;
1391         }
1392
1393         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1394         if (rc < 0) {
1395                 error_loc = "cannot get lease";
1396                 goto out;
1397         }
1398
1399         rc = migrate_nonblock(fd, fdv);
1400         if (rc < 0) {
1401                 llapi_lease_release(fd);
1402                 goto out;
1403         }
1404
1405         /*
1406          * Atomically put lease, swap layouts and close.
1407          * for a migration we need to check data version on file did
1408          * not change.
1409          */
1410         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1411         if (rc < 0) {
1412                 error_loc = "cannot swap layout";
1413                 goto out;
1414         }
1415
1416 out:
1417         if (fd >= 0)
1418                 close(fd);
1419
1420         if (fdv >= 0)
1421                 close(fdv);
1422 out_closed:
1423         if (rc < 0)
1424                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1425                         progname, name, error_loc, strerror(-rc));
1426         else if (migration_flags & MIGRATION_VERBOSE)
1427                 printf("%s\n", name);
1428
1429         return rc;
1430 }
1431
1432 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1433 {
1434         char *name;
1435         char *dup_string = NULL;
1436         int rc = 0;
1437
1438         *flags = 0;
1439         *neg_flags = 0;
1440
1441         if (!string || !string[0])
1442                 return -EINVAL;
1443
1444         dup_string = strdup(string);
1445         if (!dup_string) {
1446                 llapi_printf(LLAPI_MSG_ERROR,
1447                              "%s: insufficient memory\n",
1448                              progname);
1449                 return -ENOMEM;
1450         }
1451
1452         for (name = strtok(dup_string, ","); name; name = strtok(NULL, ",")) {
1453                 bool found = false;
1454                 int i;
1455
1456                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1457                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1458                         const char *comp_name = comp_flags_table[i].cfn_name;
1459
1460                         if (strcmp(name, comp_name) == 0) {
1461                                 *flags |= comp_flag;
1462                                 found = true;
1463                         } else if (strncmp(name, "^", 1) == 0 &&
1464                                    strcmp(name + 1, comp_name) == 0) {
1465                                 *neg_flags |= comp_flag;
1466                                 found = true;
1467                         }
1468                 }
1469                 if (!found) {
1470                         llapi_printf(LLAPI_MSG_ERROR,
1471                                      "%s: component flag '%s' not supported\n",
1472                                      progname, name);
1473                         rc = -EINVAL;
1474                         goto out_free;
1475                 }
1476         }
1477
1478         if (!*flags && !*neg_flags)
1479                 rc = -EINVAL;
1480
1481         /* don't allow to set and exclude the same flag */
1482         if (*flags & *neg_flags)
1483                 rc = -EINVAL;
1484
1485 out_free:
1486         free(dup_string);
1487         return rc;
1488 }
1489
1490 static int mdthash_input(char *string, __u32 *inflags,
1491                          __u32 *exflags, __u32 *type)
1492 {
1493         char *name;
1494         struct mhf_list {
1495                 char *name;
1496                 __u32 flag;
1497         } mhflist[] = {
1498                 {"migrating", LMV_HASH_FLAG_MIGRATION},
1499                 {"badtype", LMV_HASH_FLAG_BAD_TYPE},
1500                 {"lostlmv", LMV_HASH_FLAG_LOST_LMV},
1501         };
1502
1503         if (string == NULL)
1504                 return -EINVAL;
1505
1506         *inflags = 0;
1507         *exflags = 0;
1508         *type = 0;
1509         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1510                 bool found = false;
1511                 int i;
1512
1513                 for (i = 0; i < ARRAY_SIZE(mhflist); i++) {
1514                         if (strcmp(name, mhflist[i].name) == 0 ||
1515                             name[0] == mhflist[i].name[0]) {
1516                                 *inflags |= mhflist[i].flag;
1517                                 found = true;
1518                         } else if (name[0] == '^' &&
1519                                    (strcmp(name + 1, mhflist[i].name) == 0 ||
1520                                     name[1] == mhflist[i].name[0])) {
1521                                 *exflags |= mhflist[i].flag;
1522                                 found = true;
1523                         }
1524                 }
1525                 if (!found) {
1526                         i = check_hashtype(name);
1527                         if (i > 0) {
1528                                 *type |= 1 << i;
1529                                 continue;
1530                         }
1531                         llapi_printf(LLAPI_MSG_ERROR,
1532                                      "%s: invalid mdt_hash value '%s'\n",
1533                                      progname, name);
1534                         return -EINVAL;
1535                 }
1536         }
1537
1538         /* don't allow to include and exclude the same flag */
1539         if (*inflags & *exflags) {
1540                 llapi_printf(LLAPI_MSG_ERROR,
1541                              "%s: include and exclude same flag '%s'\n",
1542                              progname, string);
1543                 return -EINVAL;
1544         }
1545
1546         return 0;
1547 }
1548
1549 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1550 {
1551         if (!string)
1552                 return -EINVAL;
1553
1554         *state = 0;
1555         *neg_state = 0;
1556
1557         if (strncmp(string, "^", 1) == 0) {
1558                 *neg_state = llapi_layout_string_flags(string + 1);
1559                 if (*neg_state != 0)
1560                         return 0;
1561         } else {
1562                 *state = llapi_layout_string_flags(string);
1563                 if (*state != 0)
1564                         return 0;
1565         }
1566
1567         llapi_printf(LLAPI_MSG_ERROR,
1568                      "%s: mirrored file state '%s' not supported\n",
1569                      progname, string);
1570         return -EINVAL;
1571 }
1572
1573 /**
1574  * struct mirror_args - Command-line arguments for mirror(s).
1575  * @m_count:  Number of mirrors to be created with this layout.
1576  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1577  * @m_layout: Mirror layout.
1578  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1579  * @m_next:   Point to the next node of the list.
1580  *
1581  * Command-line arguments for mirror(s) will be parsed and stored in
1582  * a linked list that consists of this structure.
1583  */
1584 struct mirror_args {
1585         __u32                   m_count;
1586         __u32                   m_flags;
1587         struct llapi_layout     *m_layout;
1588         const char              *m_file;
1589         struct mirror_args      *m_next;
1590         bool                    m_inherit;
1591 };
1592
1593 /**
1594  * enum mirror_flags - Flags for extending a mirrored file.
1595  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1596  *             in case the victim file(s) contains the same data as the
1597  *             original mirrored file.
1598  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1599  * @MF_COMP_ID: specified component id instead of mirror id
1600  *
1601  * Flags for extending a mirrored file.
1602  */
1603 enum mirror_flags {
1604         MF_NO_VERIFY    = 0x1,
1605         MF_DESTROY      = 0x2,
1606         MF_COMP_ID      = 0x4,
1607         MF_COMP_POOL    = 0x8,
1608 };
1609
1610 /**
1611  * mirror_create_sanity_check() - Check mirror list.
1612  * @list:  A linked list that stores the mirror arguments.
1613  *
1614  * This function does a sanity check on @list for creating
1615  * a mirrored file.
1616  *
1617  * Return: 0 on success or a negative error code on failure.
1618  */
1619 static int mirror_create_sanity_check(const char *fname,
1620                                       struct mirror_args *list,
1621                                       bool check_fname)
1622 {
1623         int rc = 0;
1624         bool has_m_file = false;
1625         bool has_m_layout = false;
1626
1627         if (!list)
1628                 return -EINVAL;
1629
1630         if (fname && check_fname) {
1631                 struct llapi_layout *layout;
1632
1633                 layout = llapi_layout_get_by_path(fname, 0);
1634                 if (!layout) {
1635                         fprintf(stderr,
1636                                 "error: %s: file '%s' couldn't get layout\n",
1637                                 progname, fname);
1638                         return -ENODATA;
1639                 }
1640
1641                 rc = llapi_layout_sanity(layout, fname, false, true);
1642
1643                 llapi_layout_free(layout);
1644
1645                 if (rc) {
1646                         llapi_layout_sanity_perror(rc);
1647                         return rc;
1648                 }
1649         }
1650
1651         while (list) {
1652                 if (list->m_file) {
1653                         has_m_file = true;
1654                         llapi_layout_free(list->m_layout);
1655
1656                         list->m_layout =
1657                                 llapi_layout_get_by_path(list->m_file, 0);
1658                         if (!list->m_layout) {
1659                                 fprintf(stderr,
1660                                         "error: %s: file '%s' has no layout\n",
1661                                         progname, list->m_file);
1662                                 return -ENODATA;
1663                         }
1664                 } else {
1665                         has_m_layout = true;
1666                         if (!list->m_layout) {
1667                                 fprintf(stderr, "error: %s: no mirror layout\n",
1668                                         progname);
1669                                 return -EINVAL;
1670                         }
1671                 }
1672
1673                 rc = llapi_layout_sanity(list->m_layout, fname, false, true);
1674                 if (rc) {
1675                         llapi_layout_sanity_perror(rc);
1676                         return rc;
1677                 }
1678
1679                 list = list->m_next;
1680         }
1681
1682         if (has_m_file && has_m_layout) {
1683                 fprintf(stderr,
1684                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1685                         progname);
1686                 return -EINVAL;
1687         }
1688
1689         return 0;
1690 }
1691
1692 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1693 {
1694         __u32 mirror_flags = *(__u32 *)cbdata;
1695         uint32_t flags;
1696         int rc;
1697
1698         rc = llapi_layout_comp_flags_get(layout, &flags);
1699         if (rc < 0)
1700                 return rc;
1701
1702         if (!flags) {
1703                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1704                 if (rc)
1705                         return rc;
1706         }
1707
1708         return LLAPI_LAYOUT_ITER_CONT;
1709 }
1710
1711 /**
1712  * mirror_create() - Create a mirrored file.
1713  * @fname:        The file to be created.
1714  * @mirror_list:  A linked list that stores the mirror arguments.
1715  *
1716  * This function creates a mirrored file @fname with the mirror(s)
1717  * from @mirror_list.
1718  *
1719  * Return: 0 on success or a negative error code on failure.
1720  */
1721 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1722 {
1723         struct llapi_layout *layout = NULL;
1724         struct mirror_args *cur_mirror = NULL;
1725         uint16_t mirror_count = 0;
1726         int i = 0;
1727         int rc = 0;
1728
1729         rc = mirror_create_sanity_check(fname, mirror_list, false);
1730         if (rc)
1731                 return rc;
1732
1733         cur_mirror = mirror_list;
1734         while (cur_mirror) {
1735                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1736                                                mirror_set_flags,
1737                                                &cur_mirror->m_flags);
1738                 if (rc) {
1739                         rc = -errno;
1740                         fprintf(stderr, "%s: failed to set mirror flags\n",
1741                                 progname);
1742                         goto error;
1743                 }
1744
1745                 for (i = 0; i < cur_mirror->m_count; i++) {
1746                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1747                         if (rc) {
1748                                 rc = -errno;
1749                                 fprintf(stderr,
1750                                         "error: %s: merge layout failed: %s\n",
1751                                         progname, strerror(errno));
1752                                 goto error;
1753                         }
1754                 }
1755                 mirror_count += cur_mirror->m_count;
1756                 cur_mirror = cur_mirror->m_next;
1757         }
1758
1759         if (!layout) {
1760                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1761                 return -EINVAL;
1762         }
1763
1764         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1765         if (rc) {
1766                 rc = -errno;
1767                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1768                         progname, strerror(errno));
1769                 goto error;
1770         }
1771
1772         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1773                                   layout);
1774         if (rc >= 0) {
1775                 close(rc);
1776                 rc = 0;
1777         }
1778
1779 error:
1780         llapi_layout_free(layout);
1781         return rc;
1782 }
1783
1784 /**
1785  * Compare files and check lease on @fd.
1786  *
1787  * \retval bytes number of bytes are the same
1788  */
1789 static ssize_t mirror_file_compare(int fd, int fdv)
1790 {
1791         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1792         void *buf;
1793         ssize_t bytes_done = 0;
1794         ssize_t bytes_read = 0;
1795
1796         buf = malloc(buflen * 2);
1797         if (!buf)
1798                 return -ENOMEM;
1799
1800         while (1) {
1801                 if (!llapi_lease_check(fd)) {
1802                         bytes_done = -EBUSY;
1803                         break;
1804                 }
1805
1806                 bytes_read = read(fd, buf, buflen);
1807                 if (bytes_read <= 0)
1808                         break;
1809
1810                 if (bytes_read != read(fdv, buf + buflen, buflen))
1811                         break;
1812
1813                 /*
1814                  * XXX: should compute the checksum on each buffer and then
1815                  * compare checksum to avoid cache collision
1816                  */
1817                 if (memcmp(buf, buf + buflen, bytes_read))
1818                         break;
1819
1820                 bytes_done += bytes_read;
1821         }
1822
1823         free(buf);
1824
1825         return bytes_done;
1826 }
1827
1828 static int mirror_extend_file(const char *fname, const char *victim_file,
1829                               enum mirror_flags mirror_flags)
1830 {
1831         int fd = -1;
1832         int fdv = -1;
1833         struct stat stbuf;
1834         struct stat stbuf_v;
1835         struct ll_ioc_lease *data = NULL;
1836         int rc;
1837
1838         fd = open(fname, O_RDWR);
1839         if (fd < 0) {
1840                 error_loc = "open source file";
1841                 rc = -errno;
1842                 goto out;
1843         }
1844
1845         fdv = open(victim_file, O_RDWR);
1846         if (fdv < 0) {
1847                 error_loc = "open target file";
1848                 rc = -errno;
1849                 goto out;
1850         }
1851
1852         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1853                 error_loc = "stat source or target file";
1854                 rc = -errno;
1855                 goto out;
1856         }
1857
1858         if (stbuf.st_dev != stbuf_v.st_dev) {
1859                 error_loc = "stat source and target file";
1860                 rc = -EXDEV;
1861                 goto out;
1862         }
1863
1864         /* mirrors should be of the same size */
1865         if (stbuf.st_size != stbuf_v.st_size) {
1866                 error_loc = "file sizes don't match";
1867                 rc = -EINVAL;
1868                 goto out;
1869         }
1870
1871         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1872         if (rc < 0) {
1873                 error_loc = "cannot get lease";
1874                 goto out;
1875         }
1876
1877         if (!(mirror_flags & MF_NO_VERIFY)) {
1878                 ssize_t ret;
1879                 /* mirrors should have the same contents */
1880                 ret = mirror_file_compare(fd, fdv);
1881                 if (ret != stbuf.st_size) {
1882                         error_loc = "file busy or contents don't match";
1883                         rc = ret < 0 ? ret : -EINVAL;
1884                         goto out;
1885                 }
1886         }
1887
1888         /* Get rid of caching pages from clients */
1889         rc = llapi_file_flush(fd);
1890         if (rc < 0) {
1891                 error_loc = "cannot get data version";
1892                 goto out;
1893         }
1894
1895         rc = llapi_file_flush(fdv);
1896         if (rc < 0) {
1897                 error_loc = "cannot get data version";
1898                 goto out;
1899         }
1900
1901         rc = migrate_set_timestamps(fd, &stbuf);
1902         if (rc < 0) {
1903                 error_loc = "cannot set source file timestamp";
1904                 goto out;
1905         }
1906
1907         /* Atomically put lease, merge layouts and close. */
1908         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1909         if (!data) {
1910                 error_loc = "memory allocation";
1911                 goto out;
1912         }
1913         data->lil_mode = LL_LEASE_UNLCK;
1914         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1915         data->lil_count = 1;
1916         data->lil_ids[0] = fdv;
1917         rc = llapi_lease_set(fd, data);
1918         if (rc < 0) {
1919                 error_loc = "cannot merge layout";
1920                 goto out;
1921         } else if (rc == 0) {
1922                 rc = -EBUSY;
1923                 error_loc = "lost lease lock";
1924                 goto out;
1925         }
1926         rc = 0;
1927
1928 out:
1929         if (data)
1930                 free(data);
1931         if (fd >= 0)
1932                 close(fd);
1933         if (fdv >= 0)
1934                 close(fdv);
1935         if (!rc)
1936                 (void) unlink(victim_file);
1937         if (rc < 0)
1938                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1939                         progname, fname, error_loc, strerror(-rc));
1940         return rc;
1941 }
1942
1943 static int mirror_extend_layout(char *name, struct llapi_layout *m_layout,
1944                                 bool inherit, uint32_t flags)
1945 {
1946         struct llapi_layout *f_layout = NULL;
1947         struct ll_ioc_lease *data = NULL;
1948         struct stat st;
1949         int fd = -1;
1950         int fdv = -1;
1951         int rc = 0;
1952
1953         if (inherit) {
1954                 f_layout = llapi_layout_get_by_path(name, 0);
1955                 if (!f_layout) {
1956                         rc = -EINVAL;
1957                         fprintf(stderr, "%s: cannot get layout\n", progname);
1958                         goto out;
1959                 }
1960                 rc = llapi_layout_get_last_init_comp(f_layout);
1961                 if (rc) {
1962                         fprintf(stderr, "%s: cannot get the last init comp\n",
1963                                 progname);
1964                         goto out;
1965                 }
1966                 rc = llapi_layout_mirror_inherit(f_layout, m_layout);
1967                 if (rc) {
1968                         fprintf(stderr,
1969                                 "%s: cannot inherit from the last init comp\n",
1970                                 progname);
1971                         goto out;
1972                 }
1973         }
1974         llapi_layout_comp_flags_set(m_layout, flags);
1975         rc = migrate_open_files(name, MIGRATION_NONDIRECT, NULL, m_layout, &fd,
1976                                 &fdv);
1977         if (rc < 0)
1978                 goto out;
1979
1980         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1981         if (rc < 0) {
1982                 error_loc = "cannot get lease";
1983                 goto out;
1984         }
1985
1986         rc = fstat(fd, &st);
1987         if (rc < 0) {
1988                 error_loc = "cannot stat source file";
1989                 goto out;
1990         }
1991
1992         rc = migrate_nonblock(fd, fdv);
1993         if (rc < 0) {
1994                 llapi_lease_release(fd);
1995                 goto out;
1996         }
1997
1998         rc = migrate_set_timestamps(fd, &st);
1999         if (rc < 0) {
2000                 error_loc = "cannot set source file timestamp";
2001                 goto out;
2002         }
2003
2004         /* Atomically put lease, merge layouts and close. */
2005         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
2006         if (!data) {
2007                 error_loc = "memory allocation";
2008                 goto out;
2009         }
2010         data->lil_mode = LL_LEASE_UNLCK;
2011         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
2012         data->lil_count = 1;
2013         data->lil_ids[0] = fdv;
2014         rc = llapi_lease_set(fd, data);
2015         if (rc < 0) {
2016                 error_loc = "cannot merge layout";
2017                 goto out;
2018         } else if (rc == 0) {
2019                 rc = -EBUSY;
2020                 error_loc = "lost lease lock";
2021                 goto out;
2022         }
2023         rc = 0;
2024
2025 out:
2026         if (data)
2027                 free(data);
2028         if (fd >= 0)
2029                 close(fd);
2030         if (fdv >= 0)
2031                 close(fdv);
2032         if (rc < 0)
2033                 fprintf(stderr, "error: %s: %s: %s: %s\n",
2034                         progname, name, error_loc, strerror(-rc));
2035         return rc;
2036 }
2037
2038 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
2039                          enum mirror_flags mirror_flags)
2040 {
2041         int rc = 0;
2042
2043         while (mirror_list) {
2044                 if (mirror_list->m_file) {
2045                         rc = mirror_extend_file(fname, mirror_list->m_file,
2046                                                 mirror_flags);
2047                 } else {
2048                         __u32 mirror_count = mirror_list->m_count;
2049
2050                         while (mirror_count > 0) {
2051                                 rc = mirror_extend_layout(fname,
2052                                                         mirror_list->m_layout,
2053                                                         mirror_list->m_inherit,
2054                                                         mirror_list->m_flags);
2055                                 if (rc)
2056                                         break;
2057
2058                                 --mirror_count;
2059                         }
2060                 }
2061                 if (rc)
2062                         break;
2063
2064                 mirror_list = mirror_list->m_next;
2065         }
2066
2067         return rc;
2068 }
2069
2070 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
2071 {
2072         uint32_t id;
2073         int rc;
2074
2075         rc = llapi_layout_mirror_id_get(layout, &id);
2076         if (rc < 0)
2077                 return rc;
2078
2079         if ((__u16)id == *(__u16 *)cbdata)
2080                 return LLAPI_LAYOUT_ITER_STOP;
2081
2082         return LLAPI_LAYOUT_ITER_CONT;
2083 }
2084
2085 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
2086 {
2087         uint32_t id;
2088         int rc;
2089
2090         rc = llapi_layout_comp_id_get(layout, &id);
2091         if (rc < 0)
2092                 return rc;
2093
2094         if (id == *(__u32 *)cbdata)
2095                 return LLAPI_LAYOUT_ITER_STOP;
2096
2097         return LLAPI_LAYOUT_ITER_CONT;
2098 }
2099
2100 static int find_mirror_id_by_pool(struct llapi_layout *layout, void *cbdata)
2101 {
2102         char buf[LOV_MAXPOOLNAME + 1];
2103         struct pool_to_id_cbdata *d = (void *)cbdata;
2104         uint32_t id;
2105         int rc;
2106
2107         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
2108         if (rc < 0)
2109                 return rc;
2110         if (strcmp(d->pool, buf))
2111                 return LLAPI_LAYOUT_ITER_CONT;
2112
2113         rc = llapi_layout_mirror_id_get(layout, &id);
2114         if (rc < 0)
2115                 return rc;
2116         d->id = id;
2117
2118         return LLAPI_LAYOUT_ITER_STOP;
2119 }
2120
2121 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata)
2122 {
2123         char buf[LOV_MAXPOOLNAME + 1];
2124         struct pool_to_id_cbdata *d = (void *)cbdata;
2125         uint32_t id;
2126         int rc;
2127
2128         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
2129         if (rc < 0)
2130                 return rc;
2131         if (strcmp(d->pool, buf))
2132                 return LLAPI_LAYOUT_ITER_CONT;
2133
2134         rc = llapi_layout_comp_id_get(layout, &id);
2135         if (rc < 0)
2136                 return rc;
2137         d->id = id;
2138
2139         return LLAPI_LAYOUT_ITER_STOP;
2140 }
2141
2142 struct collect_ids_data {
2143         __u16   *cid_ids;
2144         int     cid_count;
2145         __u16   cid_exclude;
2146 };
2147
2148 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
2149 {
2150         struct collect_ids_data *cid = cbdata;
2151         uint32_t id;
2152         int rc;
2153
2154         rc = llapi_layout_mirror_id_get(layout, &id);
2155         if (rc < 0)
2156                 return rc;
2157
2158         if ((__u16)id != cid->cid_exclude) {
2159                 int i;
2160
2161                 for (i = 0; i < cid->cid_count; i++) {
2162                         /* already collected the mirror id */
2163                         if (id == cid->cid_ids[i])
2164                                 return LLAPI_LAYOUT_ITER_CONT;
2165                 }
2166                 cid->cid_ids[cid->cid_count] = id;
2167                 cid->cid_count++;
2168         }
2169
2170         return LLAPI_LAYOUT_ITER_CONT;
2171 }
2172
2173 /**
2174  * last_non_stale_mirror() - Check if a mirror is the last non-stale mirror.
2175  * @mirror_id: Mirror id to be checked.
2176  * @layout:    Mirror component list.
2177  *
2178  * This function checks if a mirror with specified @mirror_id is the last
2179  * non-stale mirror of a layout @layout.
2180  *
2181  * Return: true or false.
2182  */
2183 static inline
2184 bool last_non_stale_mirror(__u16 mirror_id, struct llapi_layout *layout)
2185 {
2186         __u16 mirror_ids[128] = { 0 };
2187         struct collect_ids_data cid = { .cid_ids = mirror_ids,
2188                                         .cid_count = 0,
2189                                         .cid_exclude = mirror_id, };
2190         int i;
2191
2192         llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
2193
2194         for (i = 0; i < cid.cid_count; i++) {
2195                 struct llapi_resync_comp comp_array[1024] = { { 0 } };
2196                 int comp_size = 0;
2197
2198                 comp_size = llapi_mirror_find_stale(layout, comp_array,
2199                                                     ARRAY_SIZE(comp_array),
2200                                                     &mirror_ids[i], 1);
2201                 if (comp_size == 0)
2202                         return false;
2203         }
2204
2205         return true;
2206 }
2207
2208 static int mirror_split(const char *fname, __u32 id, const char *pool,
2209                         enum mirror_flags mflags, const char *victim_file)
2210 {
2211         struct llapi_layout *layout;
2212         char parent[PATH_MAX];
2213         char victim[PATH_MAX];
2214         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
2215         char *ptr;
2216         struct ll_ioc_lease *data;
2217         uint16_t mirror_count;
2218         __u32 mirror_id;
2219         int mdt_index;
2220         int fd, fdv;
2221         bool purge = true; /* delete mirror by setting fdv=fd */
2222         bool is_encrypted;
2223         int rc;
2224
2225         if (victim_file && (strcmp(fname, victim_file) == 0)) {
2226                 fprintf(stderr,
2227                         "error %s: the source file '%s' and -f file are the same\n",
2228                         progname, fname);
2229                 return -EINVAL;
2230         }
2231
2232         /* check fname contains mirror with mirror_id/comp_id */
2233         layout = llapi_layout_get_by_path(fname, 0);
2234         if (!layout) {
2235                 fprintf(stderr,
2236                         "error %s: file '%s' couldn't get layout\n",
2237                         progname, fname);
2238                 return -EINVAL;
2239         }
2240
2241         rc = llapi_layout_sanity(layout, fname, false, true);
2242         if (rc) {
2243                 llapi_layout_sanity_perror(rc);
2244                 goto free_layout;
2245         }
2246
2247         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
2248         if (rc) {
2249                 fprintf(stderr,
2250                         "error %s: file '%s' couldn't get mirror count\n",
2251                         progname, fname);
2252                 goto free_layout;
2253         }
2254         if (mirror_count < 2) {
2255                 fprintf(stderr,
2256                         "error %s: file '%s' has %d component, cannot split\n",
2257                         progname, fname, mirror_count);
2258                 goto free_layout;
2259         }
2260
2261         if (mflags & MF_COMP_POOL) {
2262                 struct pool_to_id_cbdata data = { .pool = pool };
2263
2264                 rc = llapi_layout_comp_iterate(layout, find_mirror_id_by_pool,
2265                                                &data);
2266                 mirror_id = data.id;
2267         } else if (mflags & MF_COMP_ID) {
2268                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
2269                 mirror_id = mirror_id_of(id);
2270         } else {
2271                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
2272                 mirror_id = id;
2273         }
2274         if (rc < 0) {
2275                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
2276                         progname, fname);
2277                 goto free_layout;
2278         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
2279                 if (mflags & MF_COMP_POOL) {
2280                         fprintf(stderr,
2281                                 "error %s: file '%s' does not contain mirror with pool '%s'\n",
2282                                 progname, fname, pool);
2283                         goto free_layout;
2284                 } else if (mflags & MF_COMP_ID) {
2285                         fprintf(stderr,
2286                                 "error %s: file '%s' does not contain mirror with comp-id %u\n",
2287                                 progname, fname, id);
2288                         goto free_layout;
2289                 } else {
2290                         fprintf(stderr,
2291                                 "error %s: file '%s' does not contain mirror with id %u\n",
2292                                 progname, fname, id);
2293                         goto free_layout;
2294                 }
2295         }
2296
2297         fd = open(fname, O_RDWR);
2298         if (fd < 0) {
2299                 fprintf(stderr,
2300                         "error %s: open file '%s' failed: %s\n",
2301                         progname, fname, strerror(errno));
2302                 goto free_layout;
2303         }
2304
2305         /* get victim file directory pathname */
2306         if (strlen(fname) > sizeof(parent) - 1) {
2307                 fprintf(stderr, "error %s: file name of '%s' too long\n",
2308                         progname, fname);
2309                 rc = -ERANGE;
2310                 goto close_fd;
2311         }
2312         strncpy(parent, fname, sizeof(parent));
2313         ptr = strrchr(parent, '/');
2314         if (!ptr) {
2315                 if (!getcwd(parent, sizeof(parent))) {
2316                         fprintf(stderr, "error %s: getcwd failed: %s\n",
2317                                 progname, strerror(errno));
2318                         rc = -errno;
2319                         goto close_fd;
2320                 }
2321         } else {
2322                 if (ptr == parent)
2323                         ptr = parent + 1;
2324                 *ptr = '\0';
2325         }
2326
2327         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
2328         if (rc < 0) {
2329                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
2330                         progname, fname);
2331                 goto close_fd;
2332         }
2333
2334         rc = llapi_file_is_encrypted(fd);
2335         if (rc < 0) {
2336                 fprintf(stderr, "%s: cannot get flags of '%s': %d\n",
2337                         progname, fname, rc);
2338                 goto close_fd;
2339         }
2340         is_encrypted = rc;
2341
2342 again:
2343         if (!victim_file) {
2344                 /* use a temp file to store the splitted layout */
2345                 if (mflags & MF_DESTROY) {
2346                         char file_path[PATH_MAX];
2347                         unsigned int rnumber;
2348                         int open_flags;
2349
2350                         if (last_non_stale_mirror(mirror_id, layout)) {
2351                                 rc = -EUCLEAN;
2352                                 fprintf(stderr,
2353                                         "%s: cannot destroy the last non-stale mirror of file '%s'\n",
2354                                         progname, fname);
2355                                 goto close_fd;
2356                         }
2357
2358                         if (purge) {
2359                                 /* don't use volatile file for mirror destroy */
2360                                 fdv = fd;
2361                         } else {
2362                                 /**
2363                                  * try the old way to delete mirror using
2364                                  * volatile file.
2365                                  */
2366                                 do {
2367                                         rnumber = random();
2368                                         rc = snprintf(file_path,
2369                                                       sizeof(file_path),
2370                                                       "%s/" LUSTRE_VOLATILE_HDR ":%.4X:%.4X:fd=%.2d",
2371                                                       parent, mdt_index,
2372                                                       rnumber, fd);
2373                                         if (rc < 0 ||
2374                                             rc >= sizeof(file_path)) {
2375                                                 fdv = -ENAMETOOLONG;
2376                                                 break;
2377                                         }
2378
2379                                         open_flags = O_RDWR |
2380                                              (O_LOV_DELAY_CREATE & ~O_ACCMODE) |
2381                                              O_CREAT | O_EXCL | O_NOFOLLOW;
2382                                         fdv = open(file_path, open_flags,
2383                                                    S_IRUSR | S_IWUSR);
2384                                         if (fdv < 0)
2385                                                 rc = -errno;
2386                                 } while (fdv < 0 && rc == -EEXIST);
2387                         }
2388                 } else {
2389                         if (is_encrypted) {
2390                                 rc = -1;
2391                                 fprintf(stderr,
2392                                         "error %s: not permitted on encrypted file '%s': %d\n",
2393                                         progname, fname, rc);
2394                                 goto close_fd;
2395                         }
2396
2397                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
2398                                  fname, mirror_id);
2399                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
2400                 }
2401         } else {
2402                 /* user specified victim file */
2403                 if (is_encrypted) {
2404                         rc = -1;
2405                         fprintf(stderr,
2406                                 "error %s: not permitted on encrypted file '%s': %d\n",
2407                                 progname, fname, rc);
2408                         goto close_fd;
2409                 }
2410                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
2411         }
2412
2413         if (fdv < 0) {
2414                 fprintf(stderr,
2415                         "error %s: create victim file failed: %s\n",
2416                         progname, strerror(errno));
2417                 goto close_fd;
2418         }
2419
2420         /* get lease lock of fname */
2421         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
2422         if (rc < 0) {
2423                 fprintf(stderr,
2424                         "error %s: cannot get lease of file '%s': %d\n",
2425                         progname, fname, rc);
2426                 goto close_victim;
2427         }
2428
2429         /* Atomatically put lease, split layouts and close. */
2430         data = malloc(offsetof(typeof(*data), lil_ids[2]));
2431         if (!data) {
2432                 rc = -ENOMEM;
2433                 goto close_victim;
2434         }
2435
2436         data->lil_mode = LL_LEASE_UNLCK;
2437         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
2438         data->lil_count = 2;
2439         data->lil_ids[0] = fdv;
2440         data->lil_ids[1] = mirror_id;
2441         rc = llapi_lease_set(fd, data);
2442         if (rc <= 0) {
2443                 if (rc == -EINVAL && purge) {
2444                         /* could be old MDS which prohibit fd==fdv */
2445                         purge = false;
2446                         goto again;
2447
2448                 }
2449                 if (rc == 0) /* lost lease lock */
2450                         rc = -EBUSY;
2451                 fprintf(stderr,
2452                         "error %s: cannot split '%s': %s\n",
2453                         progname, fname, strerror(-rc));
2454         } else {
2455                 rc = 0;
2456         }
2457         free(data);
2458
2459 close_victim:
2460         if (!purge)
2461                 close(fdv);
2462 close_fd:
2463         close(fd);
2464 free_layout:
2465         llapi_layout_free(layout);
2466         return rc;
2467 }
2468
2469 static inline
2470 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
2471                            __u16 *mirror_ids, int ids_nr);
2472
2473 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
2474                               __u64 migration_flags,
2475                               struct llapi_stripe_param *param,
2476                               struct llapi_layout *layout)
2477 {
2478         struct ll_ioc_lease *data = NULL;
2479         int rc;
2480
2481         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
2482         if (rc < 0) {
2483                 error_loc = "cannot get lease";
2484                 goto out_close;
2485         }
2486
2487         /* Atomically put lease, merge layouts, resync and close. */
2488         data = calloc(1, offsetof(typeof(*data), lil_ids[1024]));
2489         if (!data) {
2490                 error_loc = "memory allocation";
2491                 goto out_close;
2492         }
2493         data->lil_mode = LL_LEASE_UNLCK;
2494         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
2495         data->lil_count = 1;
2496         data->lil_ids[0] = fdv;
2497         rc = llapi_lease_set(fd, data);
2498         if (rc < 0) {
2499                 error_loc = "cannot merge layout";
2500                 goto out_close;
2501         } else if (rc == 0) {
2502                 rc = -EBUSY;
2503                 error_loc = "lost lease lock";
2504                 goto out_close;
2505         }
2506         close(fd);
2507         close(fdv);
2508
2509         rc = lfs_mirror_resync_file(name, data, NULL, 0);
2510         if (rc) {
2511                 error_loc = "cannot resync file";
2512                 goto out;
2513         }
2514
2515         /* delete first mirror now */
2516         rc = mirror_split(name, 1, NULL, MF_DESTROY, NULL);
2517         if (rc < 0)
2518                 error_loc = "cannot delete old layout";
2519         goto out;
2520
2521 out_close:
2522         close(fd);
2523         close(fdv);
2524 out:
2525         if (rc < 0)
2526                 fprintf(stderr, "error: %s: %s: %s: %s\n",
2527                         progname, name, error_loc, strerror(-rc));
2528         else if (migration_flags & MIGRATION_VERBOSE)
2529                 printf("%s\n", name);
2530         if (data)
2531                 free(data);
2532         return rc;
2533 }
2534
2535 /**
2536  * Parse a string containing an target index list into an array of integers.
2537  *
2538  * The input string contains a comma delimited list of individual
2539  * indices and ranges, for example "1,2-4,7". Add the indices into the
2540  * \a tgts array and remove duplicates.
2541  *
2542  * \param[out] tgts             array to store indices in
2543  * \param[in] size              size of \a tgts array
2544  * \param[in] offset            starting index in \a tgts
2545  * \param[in] arg               string containing OST index list
2546  * \param[in/out] overstriping  index list may contain duplicates
2547  *
2548  * \retval positive    number of indices in \a tgts
2549  * \retval -EINVAL     unable to parse \a arg
2550  */
2551 static int parse_targets(__u32 *tgts, int size, int offset, char *arg,
2552                          unsigned long long *pattern)
2553 {
2554         int rc;
2555         int nr = offset;
2556         int slots = size - offset;
2557         char *ptr = NULL;
2558         bool overstriped = false;
2559         bool end_of_loop;
2560
2561         if (!arg)
2562                 return -EINVAL;
2563
2564         end_of_loop = false;
2565         while (!end_of_loop) {
2566                 int start_index = 0;
2567                 int end_index = 0;
2568                 int i;
2569                 char *endptr = NULL;
2570
2571                 rc = -EINVAL;
2572
2573                 ptr = strchrnul(arg, ',');
2574
2575                 end_of_loop = *ptr == '\0';
2576                 *ptr = '\0';
2577
2578                 errno = 0;
2579                 start_index = strtol(arg, &endptr, 0);
2580                 if (endptr == arg) /* no data at all */
2581                         break;
2582                 if (errno != 0 || start_index < -1 ||
2583                     (*endptr != '-' && *endptr != '\0'))
2584                         break;
2585
2586                 end_index = start_index;
2587                 if (*endptr == '-') {
2588                         errno = 0;
2589                         end_index = strtol(endptr + 1, &endptr, 0);
2590                         if (errno != 0 || *endptr != '\0' || end_index < -1)
2591                                 break;
2592                         if (end_index < start_index)
2593                                 break;
2594                 }
2595
2596                 for (i = start_index; i <= end_index && slots > 0; i++) {
2597                         int j;
2598
2599                         /* remove duplicate */
2600                         for (j = 0; j < offset; j++) {
2601                                 if (tgts[j] == i && pattern &&
2602                                     *pattern == LLAPI_LAYOUT_OVERSTRIPING)
2603                                         overstriped = true;
2604                                 else if (tgts[j] == i)
2605                                         return -EINVAL;
2606                         }
2607
2608                         j = offset;
2609
2610                         if (j == offset) { /* check complete */
2611                                 tgts[nr++] = i;
2612                                 --slots;
2613                         }
2614                 }
2615
2616                 if (slots == 0 && i < end_index)
2617                         break;
2618
2619                 *ptr = ',';
2620                 arg = ++ptr;
2621                 offset = nr;
2622                 rc = 0;
2623         }
2624         if (!end_of_loop && ptr)
2625                 *ptr = ',';
2626
2627         if (!overstriped && pattern)
2628                 *pattern = LLAPI_LAYOUT_DEFAULT;
2629
2630         return rc < 0 ? rc : nr;
2631 }
2632
2633 struct lfs_setstripe_args {
2634         unsigned long long       lsa_comp_end;
2635         unsigned long long       lsa_stripe_size;
2636         unsigned long long       lsa_extension_size;
2637         long long                lsa_stripe_count;
2638         long long                lsa_stripe_off;
2639         __u32                    lsa_comp_flags;
2640         __u32                    lsa_comp_neg_flags;
2641         unsigned long long       lsa_pattern;
2642         unsigned int             lsa_mirror_count;
2643         int                      lsa_nr_tgts;
2644         bool                     lsa_first_comp;
2645         bool                     lsa_extension_comp;
2646         __u32                   *lsa_tgts;
2647         char                    *lsa_pool_name;
2648 };
2649
2650 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2651 {
2652         unsigned int mirror_count = lsa->lsa_mirror_count;
2653         bool first_comp = lsa->lsa_first_comp;
2654
2655         memset(lsa, 0, sizeof(*lsa));
2656
2657         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2658         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2659         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2660         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2661         lsa->lsa_pool_name = NULL;
2662
2663         lsa->lsa_mirror_count = mirror_count;
2664         lsa->lsa_first_comp = first_comp;
2665 }
2666
2667 /**
2668  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2669  * @lsa: Stripe options to be initialized and inherited.
2670  *
2671  * This function initializes stripe options in @lsa and inherit
2672  * stripe_size, stripe_count and OST pool_name options.
2673  *
2674  * Return: void.
2675  */
2676 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2677 {
2678         unsigned long long stripe_size;
2679         long long stripe_count;
2680         char *pool_name = NULL;
2681
2682         stripe_size = lsa->lsa_stripe_size;
2683         stripe_count = lsa->lsa_stripe_count;
2684         pool_name = lsa->lsa_pool_name;
2685
2686         setstripe_args_init(lsa);
2687
2688         lsa->lsa_stripe_size = stripe_size;
2689         lsa->lsa_stripe_count = stripe_count;
2690         lsa->lsa_pool_name = pool_name;
2691 }
2692
2693 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2694 {
2695         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2696                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2697                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2698                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2699                 lsa->lsa_comp_end != 0);
2700 }
2701
2702 static int lsa_args_stripe_count_check(struct lfs_setstripe_args *lsa)
2703 {
2704         if (lsa->lsa_nr_tgts) {
2705                 if (lsa->lsa_nr_tgts < 0 ||
2706                     lsa->lsa_nr_tgts >= LOV_MAX_STRIPE_COUNT) {
2707                         fprintf(stderr, "Invalid nr_tgts(%d)\n",
2708                                 lsa->lsa_nr_tgts);
2709                         errno = EINVAL;
2710                         return -1;
2711                 }
2712
2713                 if (lsa->lsa_stripe_count > 0 &&
2714                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2715                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2716                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2717                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2718                                 lsa->lsa_stripe_count,
2719                                 lsa->lsa_nr_tgts);
2720                         errno = EINVAL;
2721                         return -1;
2722                 }
2723         }
2724
2725         return 0;
2726
2727 }
2728
2729 /**
2730  * comp_args_to_layout() - Create or extend a composite layout.
2731  * @composite:       Pointer to the composite layout.
2732  * @lsa:             Stripe options for the new component.
2733  *
2734  * This function creates or extends a composite layout by adding a new
2735  * component with stripe options from @lsa.
2736  *
2737  * When modified, adjust llapi_stripe_param_verify() if needed as well.
2738  *
2739  * Return: 0 on success or an error code on failure.
2740  */
2741 static int comp_args_to_layout(struct llapi_layout **composite,
2742                                struct lfs_setstripe_args *lsa,
2743                                bool set_extent)
2744 {
2745         struct llapi_layout *layout = *composite;
2746         uint64_t prev_end = 0;
2747         uint64_t size;
2748         int i = 0, rc;
2749
2750 new_comp:
2751         if (!layout) {
2752                 layout = llapi_layout_alloc();
2753                 if (!layout) {
2754                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2755                                 strerror(errno));
2756                         errno = ENOMEM;
2757                         return -1;
2758                 }
2759                 *composite = layout;
2760                 lsa->lsa_first_comp = true;
2761         } else {
2762                 uint64_t start;
2763
2764                 /*
2765                  * Get current component extent, current component
2766                  * must be the tail component.
2767                  */
2768                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2769                 if (rc) {
2770                         fprintf(stderr, "Get comp extent failed. %s\n",
2771                                 strerror(errno));
2772                         return rc;
2773                 }
2774
2775                 if (lsa->lsa_first_comp) {
2776                         prev_end = 0;
2777                         rc = llapi_layout_add_first_comp(layout);
2778                 } else {
2779                         rc = llapi_layout_comp_add(layout);
2780                 }
2781                 if (rc) {
2782                         fprintf(stderr, "Add component failed. %s\n",
2783                                 strerror(errno));
2784                         return rc;
2785                 }
2786         }
2787
2788         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2789         if (rc) {
2790                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2791                         lsa->lsa_comp_flags, strerror(errno));
2792                 return rc;
2793         }
2794
2795         if (set_extent) {
2796                 uint64_t comp_end = lsa->lsa_comp_end;
2797
2798                 /*
2799                  * The extendable component is 0-length, so it can be removed
2800                  * if there is insufficient space to extend it.
2801                  */
2802                 if (lsa->lsa_extension_comp)
2803                         comp_end = prev_end;
2804
2805                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2806                                                   comp_end);
2807                 if (rc) {
2808                         fprintf(stderr, "Set extent [%lu, %lu) failed. %s\n",
2809                                 prev_end, comp_end, strerror(errno));
2810                         return rc;
2811                 }
2812         }
2813         /* reset lsa_first_comp */
2814         lsa->lsa_first_comp = false;
2815
2816         /* Data-on-MDT component setting */
2817         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2818                 /* Yaml support */
2819                 if (lsa->lsa_stripe_count == 0)
2820                         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2821                 if (lsa->lsa_stripe_size == lsa->lsa_comp_end)
2822                         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2823                 if (lsa->lsa_stripe_off == -1 ||
2824                     lsa->lsa_stripe_off == 0)
2825                         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2826                 /*
2827                  * In case of Data-on-MDT patterns the only extra option
2828                  * applicable is stripe size option.
2829                  */
2830                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2831                         fprintf(stderr,
2832                                 "Option 'stripe-count' can't be specified with Data-on-MDT component: %lld\n",
2833                                 lsa->lsa_stripe_count);
2834                         errno = EINVAL;
2835                         return -1;
2836                 }
2837                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT &&
2838                     lsa->lsa_stripe_size != lsa->lsa_comp_end - prev_end) {
2839                         fprintf(stderr,
2840                                 "Option 'stripe-size' can't be specified with Data-on-MDT component: %llu\n",
2841                                 lsa->lsa_stripe_size);
2842                         errno = EINVAL;
2843                         return -1;
2844                 }
2845                 if (lsa->lsa_nr_tgts != 0) {
2846                         fprintf(stderr,
2847                                 "Option 'ost-list' can't be specified with Data-on-MDT component: '%i'\n",
2848                                 lsa->lsa_nr_tgts);
2849                         errno = EINVAL;
2850                         return -1;
2851                 }
2852                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2853                         fprintf(stderr,
2854                                 "Option 'stripe-offset' can't be specified with Data-on-MDT component: %lld\n",
2855                                 lsa->lsa_stripe_off);
2856                         errno = EINVAL;
2857                         return -1;
2858                 }
2859                 if (lsa->lsa_pool_name != 0) {
2860                         fprintf(stderr,
2861                                 "Option 'pool' can't be specified with Data-on-MDT component: '%s'\n",
2862                                 lsa->lsa_pool_name);
2863                         errno = EINVAL;
2864                         return -1;
2865                 }
2866
2867                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2868                 if (rc) {
2869                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2870                                 lsa->lsa_pattern,
2871                                 strerror(errno));
2872                         return rc;
2873                 }
2874                 /* Data-on-MDT component has always single stripe up to end */
2875                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2876         } else if (lsa->lsa_pattern == LLAPI_LAYOUT_OVERSTRIPING) {
2877                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2878                 if (rc) {
2879                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2880                                 lsa->lsa_pattern,
2881                                 strerror(errno));
2882                         return rc;
2883                 }
2884         }
2885
2886         size = lsa->lsa_comp_flags & LCME_FL_EXTENSION ?
2887                 lsa->lsa_extension_size : lsa->lsa_stripe_size;
2888
2889         if (lsa->lsa_comp_flags & LCME_FL_EXTENSION)
2890                 rc = llapi_layout_extension_size_set(layout, size);
2891         else
2892                 rc = llapi_layout_stripe_size_set(layout, size);
2893
2894         if (rc) {
2895                 fprintf(stderr, "Set stripe size %lu failed: %s\n",
2896                         size, strerror(errno));
2897                 return rc;
2898         }
2899
2900         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2901         if (rc) {
2902                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2903                         lsa->lsa_stripe_count, strerror(errno));
2904                 return rc;
2905         }
2906
2907         if (lsa->lsa_pool_name) {
2908                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2909                 if (rc) {
2910                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2911                                 lsa->lsa_pool_name, strerror(errno));
2912                         return rc;
2913                 }
2914         } else {
2915                 rc = llapi_layout_pool_name_set(layout, "");
2916                 if (rc) {
2917                         fprintf(stderr, "Clear pool name failed: %s\n",
2918                                 strerror(errno));
2919                         return rc;
2920                 }
2921         }
2922
2923         rc = lsa_args_stripe_count_check(lsa);
2924         if (rc)
2925                 return rc;
2926
2927         if (lsa->lsa_nr_tgts > 0) {
2928                 bool found = false;
2929
2930                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2931                         rc = llapi_layout_ost_index_set(layout, i,
2932                                                         lsa->lsa_tgts[i]);
2933                         if (rc)
2934                                 break;
2935
2936                         /* Make sure stripe offset is in OST list. */
2937                         if (lsa->lsa_tgts[i] == lsa->lsa_stripe_off)
2938                                 found = true;
2939                 }
2940                 if (!found) {
2941                         fprintf(stderr, "Invalid stripe offset '%lld', not in the target list",
2942                                 lsa->lsa_stripe_off);
2943                         errno = EINVAL;
2944                         return -1;
2945                 }
2946         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2947                    lsa->lsa_stripe_off != -1) {
2948                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2949         }
2950         if (rc) {
2951                 fprintf(stderr, "Set ost index %d failed. %s\n",
2952                         i, strerror(errno));
2953                 return rc;
2954         }
2955
2956         /* Create the second, virtual component of extension space */
2957         if (lsa->lsa_extension_comp) {
2958                 lsa->lsa_comp_flags |= LCME_FL_EXTENSION;
2959                 lsa->lsa_extension_comp = false;
2960                 goto new_comp;
2961         }
2962
2963         return rc;
2964 }
2965
2966 static int build_component(struct llapi_layout **layout,
2967                            struct lfs_setstripe_args *lsa, bool set_extent)
2968 {
2969         int rc;
2970
2971         rc = comp_args_to_layout(layout, lsa, set_extent);
2972         if (rc)
2973                 return rc;
2974
2975         if (lsa->lsa_mirror_count > 0) {
2976                 rc = llapi_layout_mirror_count_set(*layout,
2977                                                    lsa->lsa_mirror_count);
2978                 if (rc)
2979                         return rc;
2980
2981                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2982                 if (rc)
2983                         return rc;
2984                 lsa->lsa_mirror_count = 0;
2985         }
2986
2987         return rc;
2988 }
2989
2990 static int build_prev_component(struct llapi_layout **layout,
2991                                 struct lfs_setstripe_args *prev,
2992                                 struct lfs_setstripe_args *lsa,
2993                                 bool set_extent)
2994 {
2995         int extension = lsa->lsa_comp_flags & LCME_FL_EXTENSION;
2996         int rc;
2997
2998         if (prev->lsa_stripe_size) {
2999                 if (extension) {
3000                         prev->lsa_comp_end = lsa->lsa_comp_end;
3001                         prev->lsa_extension_size = lsa->lsa_extension_size;
3002                         prev->lsa_extension_comp = true;
3003                 }
3004
3005                 rc = build_component(layout, prev, true);
3006                 if (rc)
3007                         return rc;
3008         }
3009
3010         /*
3011          * Copy lsa to previous lsa;
3012          * if this is an extension component, make the previous invalid;
3013          */
3014         if (extension)
3015                 prev->lsa_stripe_size = 0;
3016         else
3017                 *prev = *lsa;
3018
3019         return 0;
3020 }
3021
3022 #ifndef LCME_TEMPLATE_FLAGS
3023 #define LCME_TEMPLATE_FLAGS     (LCME_FL_PREF_RW | LCME_FL_NOSYNC | \
3024                                  LCME_FL_EXTENSION)
3025 #endif
3026
3027 static int build_layout_from_yaml_node(struct cYAML *node,
3028                                        struct llapi_layout **layout,
3029                                        struct lfs_setstripe_args *lsa,
3030                                        struct lfs_setstripe_args *prevp)
3031 {
3032         struct lfs_setstripe_args prev = { 0 };
3033         __u32 *osts = lsa->lsa_tgts;
3034         char *string;
3035         int rc = 0;
3036
3037         if (!prevp)
3038                 prevp = &prev;
3039
3040         while (node) {
3041                 string = node->cy_string;
3042
3043                 if (node->cy_type == CYAML_TYPE_OBJECT) {
3044                         /* go deep to sub blocks */
3045                         if (string && !strncmp(string, "component", 9) &&
3046                             strncmp(string, "component0", 10) &&
3047                             strncmp(string, "components", 10)) {
3048                                 rc = build_prev_component(layout, prevp, lsa,
3049                                                           true);
3050                                 if (rc)
3051                                         return rc;
3052
3053                                 /* initialize lsa. */
3054                                 setstripe_args_init(lsa);
3055                                 lsa->lsa_first_comp = false;
3056                                 lsa->lsa_tgts = osts;
3057                         }
3058
3059                         rc = build_layout_from_yaml_node(node->cy_child, layout,
3060                                                          lsa, prevp);
3061                         if (rc)
3062                                 return rc;
3063                 } else {
3064                         if (!node->cy_string)
3065                                 return -EINVAL;
3066
3067                         /* skip leading lmm_ if present, to simplify parsing */
3068                         if (strncmp(string, "lmm_", 4) == 0)
3069                                 string += 4;
3070
3071                         if (node->cy_type == CYAML_TYPE_STRING) {
3072                                 if (!strcmp(string, "lcme_extent.e_end")) {
3073                                         if (!strcmp(node->cy_valuestring, "EOF") ||
3074                                             !strcmp(node->cy_valuestring, "eof"))
3075                                                 lsa->lsa_comp_end = LUSTRE_EOF;
3076                                 } else if (!strcmp(string, "pool")) {
3077                                         lsa->lsa_pool_name = node->cy_valuestring;
3078                                 } else if (!strcmp(string, "pattern")) {
3079                                         if (!strcmp(node->cy_valuestring, "mdt"))
3080                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
3081                                         if (!strcmp(node->cy_valuestring,
3082                                                     "raid0,overstriped"))
3083                                                 lsa->lsa_pattern =
3084                                                         LLAPI_LAYOUT_OVERSTRIPING;
3085                                 } else if (!strcmp(string, "lcme_flags")) {
3086                                         rc = comp_str2flags(node->cy_valuestring,
3087                                                             &lsa->lsa_comp_flags,
3088                                                             &lsa->lsa_comp_neg_flags);
3089                                         if (rc)
3090                                                 return rc;
3091                                         /*
3092                                          * Only template flags have meaning in
3093                                          * the layout for a new file
3094                                          */
3095                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
3096                                 }
3097                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
3098                                 if (!strcmp(string, "lcm_mirror_count")) {
3099                                         lsa->lsa_mirror_count = node->cy_valueint;
3100                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
3101                                         if (node->cy_valueint == 0)
3102                                                 lsa->lsa_first_comp = true;
3103                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
3104                                         if (node->cy_valueint == -1)
3105                                                 lsa->lsa_comp_end = LUSTRE_EOF;
3106                                         else
3107                                                 lsa->lsa_comp_end = node->cy_valueint;
3108                                 } else if (!strcmp(string, "stripe_count")) {
3109                                         lsa->lsa_stripe_count = node->cy_valueint;
3110                                 } else if (!strcmp(string, "stripe_size")) {
3111                                         lsa->lsa_stripe_size = node->cy_valueint;
3112                                 } else if (!strcmp(string, "extension_size")) {
3113                                         lsa->lsa_extension_size = node->cy_valueint;
3114                                         lsa->lsa_extension_comp = true;
3115                                 } else if (!strcmp(string, "stripe_offset")) {
3116                                         lsa->lsa_stripe_off = node->cy_valueint;
3117                                 } else if (!strcmp(string, "l_ost_idx")) {
3118                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
3119                                         lsa->lsa_nr_tgts++;
3120                                 }
3121                         }
3122                 }
3123                 node = node->cy_next;
3124         }
3125
3126         if (prevp == &prev) {
3127                 rc = build_prev_component(layout, prevp, lsa, true);
3128                 if (rc)
3129                         return rc;
3130
3131                 if (!(lsa->lsa_comp_flags & LCME_FL_EXTENSION))
3132                         rc = build_component(layout, lsa, *layout != NULL);
3133         }
3134
3135         return rc;
3136 }
3137
3138 static int lfs_comp_create_from_yaml(char *template,
3139                                      struct llapi_layout **layout,
3140                                      struct lfs_setstripe_args *lsa,
3141                                      __u32 *osts)
3142 {
3143         struct cYAML *tree = NULL, *err_rc = NULL;
3144         int rc = 0;
3145
3146         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
3147         if (!tree) {
3148                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
3149                         progname, template);
3150                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
3151                                   "can't parse", &err_rc);
3152                 cYAML_print_tree2file(stderr, err_rc);
3153                 cYAML_free_tree(err_rc);
3154                 rc = -EINVAL;
3155                 goto err;
3156         }
3157
3158         /* initialize lsa for plain file */
3159         setstripe_args_init(lsa);
3160         lsa->lsa_tgts = osts;
3161
3162         rc = build_layout_from_yaml_node(tree, layout, lsa, NULL);
3163         if (rc) {
3164                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
3165                         progname, template);
3166                 goto err;
3167         }
3168         /* clean clean lsa */
3169         setstripe_args_init(lsa);
3170
3171 err:
3172         if (tree)
3173                 cYAML_free_tree(tree);
3174         return rc;
3175 }
3176
3177 /**
3178  * Get the extension size from the next (SEL) component and extend the
3179  * current component on it. The start of the next component is to be
3180  * adjusted as well.
3181  *
3182  * \param[in] layout    the current layout
3183  * \param[in] start     the start of the current component
3184  * \param[in,out] end   the end of the current component
3185  * \param[in] offset    the offset to adjust the end position to instead of
3186  *                      extension size
3187  *
3188  * \retval 0            - extended successfully
3189  * \retval < 0          - error
3190  */
3191 static int layout_extend_comp(struct llapi_layout *layout,
3192                               uint64_t start, uint64_t *end,
3193                               uint64_t offset)
3194 {
3195         uint64_t size, next_start, next_end;
3196         int rc;
3197
3198         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_NEXT);
3199         if (rc < 0) {
3200                 fprintf(stderr,
3201                         "%s setstripe: cannot move component cursor: %s\n",
3202                         progname, strerror(errno));
3203                 return rc;
3204         }
3205
3206         /*
3207          * Even if the @size will not be used below, this will fail if
3208          * this is not a SEL component - a good confirmation we are
3209          * working on right components.
3210          */
3211         rc = llapi_layout_extension_size_get(layout, &size);
3212         if (rc < 0) {
3213                 fprintf(stderr,
3214                         "%s setstripe: cannot get component ext size: %s\n",
3215                         progname, strerror(errno));
3216                 return rc;
3217         }
3218
3219         rc = llapi_layout_comp_extent_get(layout, &next_start, &next_end);
3220         if (rc) {
3221                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3222                         progname, strerror(errno));
3223                 return rc;
3224         }
3225
3226         next_start += offset ?: size;
3227         rc = llapi_layout_comp_extent_set(layout, next_start, next_end);
3228         if (rc) {
3229                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
3230                         progname, strerror(errno));
3231                 return rc;
3232         }
3233
3234         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_PREV);
3235         if (rc < 0) {
3236                 fprintf(stderr,
3237                         "%s setstripe: cannot move component cursor: %s\n",
3238                         progname, strerror(errno));
3239                 return rc;
3240         }
3241
3242         *end += offset ?: size;
3243         rc = llapi_layout_comp_extent_set(layout, start, *end);
3244         if (rc) {
3245                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
3246                         progname, strerror(errno));
3247                 return rc;
3248         }
3249
3250         return 0;
3251 }
3252
3253 /**
3254  * In 'lfs setstripe --component-add' mode, we need to fetch the extent
3255  * end of the last component in the existing file, and adjust the
3256  * first extent start of the components to be added accordingly.
3257  *
3258  * In the create mode, we need to check if the first component is an extendable
3259  * SEL component and extend its length to the extension size (first component
3260  * of the PFL file is initialised at the create time, cannot be 0-lenght.
3261  */
3262 static int layout_adjust_first_extent(char *fname, struct llapi_layout *layout,
3263                                       bool comp_add)
3264 {
3265         struct llapi_layout *head;
3266         uint64_t start = 0, prev_end = 0;
3267         uint64_t end;
3268         int rc, ret = 0;
3269
3270         if (!layout || !(comp_add || llapi_layout_is_composite(layout)))
3271                 return 0;
3272
3273         errno = 0;
3274         while (comp_add) {
3275                 head = llapi_layout_get_by_path(fname, 0);
3276                 if (!head) {
3277                         fprintf(stderr,
3278                                 "%s setstripe: cannot read layout from '%s': %s\n",
3279                                 progname, fname, strerror(errno));
3280                         return -EINVAL;
3281                 } else if (errno == ENODATA) {
3282                         /*
3283                          * file without LOVEA, this component-add will be turned
3284                          * into a component-create.
3285                          */
3286                         llapi_layout_free(head);
3287                         ret = -ENODATA;
3288
3289                         /*
3290                          * the new layout will be added to an empty one, it
3291                          * still needs to be adjusted below
3292                          */
3293                         comp_add = 0;
3294                         break;
3295                 } else if (!llapi_layout_is_composite(head)) {
3296                         fprintf(stderr,
3297                                 "%s setstripe: '%s' not a composite file\n",
3298                                 progname, fname);
3299                         llapi_layout_free(head);
3300                         return -EINVAL;
3301                 }
3302
3303                 rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
3304                 if (rc) {
3305                         fprintf(stderr,
3306                                 "%s setstripe: cannot get prev extent: %s\n",
3307                                 progname, strerror(errno));
3308                         llapi_layout_free(head);
3309                         return rc;
3310                 }
3311
3312                 llapi_layout_free(head);
3313                 break;
3314         }
3315
3316         /* Make sure we use the first component of the layout to be added. */
3317         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
3318         if (rc < 0) {
3319                 fprintf(stderr,
3320                         "%s setstripe: cannot move component cursor: %s\n",
3321                         progname, strerror(errno));
3322                 return rc;
3323         }
3324
3325         rc = llapi_layout_comp_extent_get(layout, &start, &end);
3326         if (rc) {
3327                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3328                         progname, strerror(errno));
3329                 return rc;
3330         }
3331
3332         if (start == 0 && end == 0) {
3333                 rc = layout_extend_comp(layout, start, &end,
3334                                         comp_add ? prev_end : 0);
3335                 if (rc)
3336                         return rc;
3337         }
3338
3339         if (start > prev_end || end < prev_end) {
3340                 fprintf(stderr,
3341                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
3342                         progname, start, end, prev_end);
3343                 return -EINVAL;
3344         }
3345
3346         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
3347         if (rc) {
3348                 fprintf(stderr,
3349                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
3350                         progname, prev_end, end, strerror(errno));
3351                 return rc;
3352         }
3353
3354         return ret;
3355 }
3356
3357 static int mirror_adjust_first_extents(struct mirror_args *list)
3358 {
3359         int rc = 0;
3360
3361         if (!list)
3362                 return 0;
3363
3364         while (list) {
3365                 rc = layout_adjust_first_extent(NULL, list->m_layout, false);
3366                 if (rc)
3367                         break;
3368                 list = list->m_next;
3369         }
3370
3371         return rc;
3372 }
3373
3374 static inline bool arg_is_eof(char *arg)
3375 {
3376         return !strncmp(arg, "-1", strlen("-1")) ||
3377                !strncmp(arg, "EOF", strlen("EOF")) ||
3378                !strncmp(arg, "eof", strlen("eof"));
3379 }
3380
3381 /**
3382  * lfs_mirror_alloc() - Allocate a mirror argument structure.
3383  *
3384  * Return: Valid mirror_args pointer on success and
3385  *         NULL if memory allocation fails.
3386  */
3387 static struct mirror_args *lfs_mirror_alloc(void)
3388 {
3389         struct mirror_args *mirror = NULL;
3390
3391         while (1) {
3392                 mirror = calloc(1, sizeof(*mirror));
3393                 if (mirror) {
3394                         mirror->m_inherit = false;
3395                         break;
3396                 }
3397
3398                 sleep(1);
3399         }
3400
3401         return mirror;
3402 }
3403
3404 /**
3405  * lfs_mirror_free() - Free memory allocated for a mirror argument
3406  *                     structure.
3407  * @mirror: Previously allocated mirror argument structure by
3408  *          lfs_mirror_alloc().
3409  *
3410  * Free memory allocated for @mirror.
3411  *
3412  * Return: void.
3413  */
3414 static void lfs_mirror_free(struct mirror_args *mirror)
3415 {
3416         if (mirror->m_layout)
3417                 llapi_layout_free(mirror->m_layout);
3418         free(mirror);
3419 }
3420
3421 /**
3422  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
3423  * @mirror_list: Previously allocated mirror list.
3424  *
3425  * Free memory allocated for @mirror_list.
3426  *
3427  * Return: void.
3428  */
3429 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
3430 {
3431         struct mirror_args *next_mirror = NULL;
3432
3433         while (mirror_list) {
3434                 next_mirror = mirror_list->m_next;
3435                 lfs_mirror_free(mirror_list);
3436                 mirror_list = next_mirror;
3437         }
3438 }
3439
3440 enum {
3441         LFS_POOL_OPT = 3,
3442         LFS_COMP_COUNT_OPT,
3443         LFS_COMP_START_OPT,
3444         LFS_COMP_FLAGS_OPT,
3445         LFS_COMP_DEL_OPT,
3446         LFS_COMP_SET_OPT,
3447         LFS_COMP_ADD_OPT,
3448         LFS_COMP_NO_VERIFY_OPT,
3449         LFS_PROJID_OPT,
3450         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
3451         LFS_MIRROR_ID_OPT,
3452         LFS_MIRROR_STATE_OPT,
3453         LFS_LAYOUT_COPY,
3454         LFS_MIRROR_INDEX_OPT,
3455         LFS_LAYOUT_FOREIGN_OPT,
3456         LFS_MODE_OPT,
3457         LFS_NEWERXY_OPT,
3458         LFS_INHERIT_RR_OPT,
3459         LFS_FIND_PERM,
3460 };
3461
3462 #ifndef LCME_USER_MIRROR_FLAGS
3463 /* The mirror flags can be set by users at creation time. */
3464 #define LCME_USER_MIRROR_FLAGS  (LCME_FL_PREF_RW)
3465 #endif
3466
3467 /* functions */
3468 static int lfs_setstripe_internal(int argc, char **argv,
3469                                   enum setstripe_origin opc)
3470 {
3471         struct lfs_setstripe_args        lsa = { 0 };
3472         struct llapi_stripe_param       *param = NULL;
3473         struct find_param                migrate_mdt_param = {
3474                 .fp_max_depth = -1,
3475                 .fp_mdt_index = -1,
3476         };
3477         char                            *fname;
3478         int                              result = 0;
3479         int                              result2 = 0;
3480         char                            *end;
3481         int                              c;
3482         int                              delete = 0;
3483         unsigned long long               size_units = 1;
3484         bool                             migrate_mode = false;
3485         bool                             migrate_mdt_mode = false;
3486         bool                             setstripe_mode = false;
3487         bool                             migration_block = false;
3488         __u64                            migration_flags = 0;
3489         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
3490         int                              comp_del = 0, comp_set = 0;
3491         int                              comp_add = 0;
3492         __u32                            comp_id = 0;
3493         struct llapi_layout             *layout = NULL;
3494         struct llapi_layout             **lpp = &layout;
3495         bool                             mirror_mode = false;
3496         bool                             has_m_file = false;
3497         __u32                            mirror_count = 0;
3498         enum mirror_flags                mirror_flags = 0;
3499         struct mirror_args              *mirror_list = NULL;
3500         struct mirror_args              *new_mirror = NULL;
3501         struct mirror_args              *last_mirror = NULL;
3502         __u16                            mirror_id = 0;
3503         char                             cmd[PATH_MAX];
3504         bool from_yaml = false;
3505         bool from_copy = false;
3506         char *template = NULL;
3507         bool foreign_mode = false;
3508         char *xattr = NULL;
3509         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
3510         char *mode_opt = NULL;
3511         mode_t previous_umask = 0;
3512         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
3513
3514         struct option long_opts[] = {
3515 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
3516 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3517         /* --block is only valid in migrate mode */
3518         { .val = 'b',   .name = "block",        .has_arg = no_argument },
3519 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
3520         { .val = LFS_COMP_ADD_OPT,
3521                         .name = "comp-add",     .has_arg = no_argument },
3522         { .val = LFS_COMP_ADD_OPT,
3523                         .name = "component-add", .has_arg = no_argument },
3524         { .val = LFS_COMP_DEL_OPT,
3525                         .name = "comp-del",     .has_arg = no_argument },
3526         { .val = LFS_COMP_DEL_OPT,
3527                         .name = "component-del", .has_arg = no_argument },
3528         { .val = LFS_COMP_FLAGS_OPT,
3529                         .name = "comp-flags",   .has_arg = required_argument },
3530         { .val = LFS_COMP_FLAGS_OPT,
3531                         .name = "component-flags",
3532                                                 .has_arg = required_argument },
3533         { .val = LFS_COMP_SET_OPT,
3534                         .name = "comp-set",     .has_arg = no_argument },
3535         { .val = LFS_COMP_SET_OPT,
3536                         .name = "component-set",
3537                                                 .has_arg = no_argument},
3538         { .val = LFS_COMP_NO_VERIFY_OPT,
3539                         .name = "no-verify",    .has_arg = no_argument},
3540         { .val = LFS_LAYOUT_FLAGS_OPT,
3541                         .name = "flags",        .has_arg = required_argument},
3542         { .val = LFS_LAYOUT_FOREIGN_OPT,
3543                         .name = "foreign",      .has_arg = optional_argument},
3544         { .val = LFS_MIRROR_ID_OPT,
3545                         .name = "mirror-id",    .has_arg = required_argument},
3546         { .val = LFS_MODE_OPT,
3547                         .name = "mode",         .has_arg = required_argument},
3548         { .val = LFS_LAYOUT_COPY,
3549                         .name = "copy",         .has_arg = required_argument},
3550         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
3551         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
3552         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
3553         { .val = 'C',   .name = "overstripe-count",
3554                                                 .has_arg = required_argument},
3555         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
3556         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
3557         /* --non-direct is only valid in migrate mode */
3558         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
3559         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
3560         { .val = 'E',   .name = "component-end",
3561                                                 .has_arg = required_argument},
3562         { .val = 'f',   .name = "file",         .has_arg = required_argument },
3563 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3564 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
3565 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3566         { .val = 'h',   .name = "help",         .has_arg = no_argument },
3567         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
3568         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
3569         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
3570         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
3571         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
3572 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
3573         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3574         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
3575         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
3576         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
3577         /* --non-block is only valid in migrate mode */
3578         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
3579         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
3580         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
3581 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3582         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
3583         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
3584 #endif
3585         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3586 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3587 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3588 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3589 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3590         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3591         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3592 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3593 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3594 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3595 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3596         /* --verbose is only valid in migrate mode */
3597         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
3598         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
3599 /* dirstripe { .val = 'X',.name = "max-inherit",.has_arg = required_argument }*/
3600         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
3601         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument},
3602         { .val = 'z',   .name = "extension-size", .has_arg = required_argument},
3603         { .name = NULL } };
3604
3605         setstripe_args_init(&lsa);
3606
3607         migrate_mode = (opc == SO_MIGRATE);
3608         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
3609         setstripe_mode = (opc == SO_SETSTRIPE);
3610         if (opc == SO_MIRROR_DELETE) {
3611                 delete = 1;
3612                 mirror_flags = MF_DESTROY;
3613         }
3614
3615         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
3616         progname = cmd;
3617         while ((c = getopt_long(argc, argv,
3618                                 "bc:C:dDE:f:hH:i:I:m:N::no:p:L:s:S:vx:y:z:",
3619                                 long_opts, NULL)) >= 0) {
3620                 size_units = 1;
3621                 switch (c) {
3622                 case 0:
3623                         /* Long options. */
3624                         break;
3625                 case LFS_COMP_ADD_OPT:
3626                         comp_add = 1;
3627                         break;
3628                 case LFS_COMP_DEL_OPT:
3629                         comp_del = 1;
3630                         break;
3631                 case LFS_COMP_FLAGS_OPT:
3632                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
3633                                                 &lsa.lsa_comp_neg_flags);
3634                         if (result != 0)
3635                                 goto usage_error;
3636                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
3637                                 fprintf(stderr,
3638                                         "%s: inverted flags are not supported\n",
3639                                         progname);
3640                                 goto usage_error;
3641                         }
3642                         break;
3643                 case LFS_COMP_SET_OPT:
3644                         comp_set = 1;
3645                         break;
3646                 case LFS_COMP_NO_VERIFY_OPT:
3647                         mirror_flags |= MF_NO_VERIFY;
3648                         break;
3649                 case LFS_MIRROR_ID_OPT: {
3650                         unsigned long int id;
3651
3652                         errno = 0;
3653                         id = strtoul(optarg, &end, 0);
3654                         if (errno != 0 || *end != '\0' || id == 0 ||
3655                             id > UINT16_MAX) {
3656                                 fprintf(stderr,
3657                                         "%s %s: invalid mirror ID '%s'\n",
3658                                         progname, argv[0], optarg);
3659                                 goto usage_error;
3660                         }
3661
3662                         mirror_id = (__u16)id;
3663                         break;
3664                 }
3665                 case LFS_LAYOUT_FLAGS_OPT: {
3666                         uint32_t neg_flags;
3667
3668                         /* check for numeric flags (foreign and mirror cases) */
3669                         if (setstripe_mode && !mirror_mode && !last_mirror) {
3670                                 errno = 0;
3671                                 flags = strtoul(optarg, &end, 16);
3672                                 if (errno != 0 || *end != '\0' ||
3673                                     flags >= UINT32_MAX) {
3674                                         fprintf(stderr,
3675                                                 "%s %s: invalid hex flags '%s'\n",
3676                                                 progname, argv[0], optarg);
3677                                         return CMD_HELP;
3678                                 }
3679                                 if (!foreign_mode) {
3680                                         fprintf(stderr,
3681                                                 "%s %s: hex flags must be specified with --foreign option\n",
3682                                                 progname, argv[0]);
3683                                         return CMD_HELP;
3684                                 }
3685                                 break;
3686                         }
3687
3688                         if (!mirror_mode || !last_mirror) {
3689                                 fprintf(stderr,
3690                                         "error: %s: --flags must be specified with --mirror-count|-N option\n",
3691                                         progname);
3692                                 goto usage_error;
3693                         }
3694
3695                         result = comp_str2flags(optarg, &last_mirror->m_flags,
3696                                                 &neg_flags);
3697                         if (result != 0)
3698                                 goto usage_error;
3699
3700                         if (neg_flags) {
3701                                 fprintf(stderr,
3702                                         "%s: inverted flags are not supported\n",
3703                                         progname);
3704                                 result = -EINVAL;
3705                                 goto usage_error;
3706                         }
3707                         if (last_mirror->m_flags & ~LCME_USER_MIRROR_FLAGS) {
3708                                 fprintf(stderr,
3709                                         "%s: unsupported mirror flags: %s\n",
3710                                         progname, optarg);
3711                                 result = -EINVAL;
3712                                 goto error;
3713                         }
3714                         break;
3715                 }
3716                 case LFS_LAYOUT_FOREIGN_OPT:
3717                         if (optarg) {
3718                                 /* check pure numeric */
3719                                 type = strtoul(optarg, &end, 0);
3720                                 if (*end) {
3721                                         /* check name */
3722                                         type = check_foreign_type_name(optarg);
3723                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
3724                                                 fprintf(stderr,
3725                                                         "%s %s: unrecognized foreign type '%s'\n",
3726                                                         progname, argv[0],
3727                                                         optarg);
3728                                                 return CMD_HELP;
3729                                         }
3730                                 } else if (type >= UINT32_MAX) {
3731                                         fprintf(stderr,
3732                                                 "%s %s: invalid foreign type '%s'\n",
3733                                                 progname, argv[0], optarg);
3734                                         return CMD_HELP;
3735                                 }
3736                         }
3737                         foreign_mode = true;
3738                         break;
3739                 case LFS_MODE_OPT:
3740                         mode_opt = optarg;
3741                         if (mode_opt) {
3742                                 mode = strtoul(mode_opt, &end, 8);
3743                                 if (*end != '\0') {
3744                                         fprintf(stderr,
3745                                                 "%s %s: bad mode '%s'\n",
3746                                                 progname, argv[0], mode_opt);
3747                                         return CMD_HELP;
3748                                 }
3749                                 previous_umask = umask(0);
3750                         }
3751                         break;
3752                 case LFS_LAYOUT_COPY:
3753                         from_copy = true;
3754                         template = optarg;
3755                         break;
3756                 case 'b':
3757                         if (!migrate_mode) {
3758                                 fprintf(stderr,
3759                                         "%s %s: -b|--block valid only for migrate command\n",
3760                                         progname, argv[0]);
3761                                 goto usage_error;
3762                         }
3763                         migration_block = true;
3764                         break;
3765                 case 'C':
3766                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3767                                 fprintf(stderr,
3768                                         "%s %s: -C|--overstripe-count incompatible with DoM layout\n",
3769                                         progname, argv[0]);
3770                                 goto usage_error;
3771                         }
3772                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3773                         /* fall through */
3774                 case 'c':
3775                         errno = 0;
3776                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3777                         if (errno != 0 || *end != '\0'||
3778                             lsa.lsa_stripe_count < -1 ||
3779                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
3780                                 fprintf(stderr,
3781                                         "%s %s: invalid stripe count '%s'\n",
3782                                         progname, argv[0], optarg);
3783                                 goto usage_error;
3784                         }
3785
3786                         if (lsa.lsa_stripe_count == -1)
3787                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
3788                         break;
3789                 case 'd':
3790                         /* delete the default striping pattern */
3791                         delete = 1;
3792                         if (opc == SO_MIRROR_SPLIT) {
3793                                 if (has_m_file) {
3794                                         fprintf(stderr,
3795                                               "%s %s: -d cannot used with -f\n",
3796                                                 progname, argv[0]);
3797                                         goto usage_error;
3798                                 }
3799                                 mirror_flags |= MF_DESTROY;
3800                         }
3801                         break;
3802                 case 'D':
3803                         if (!migrate_mode) {
3804                                 fprintf(stderr,
3805                                         "%s %s: -D|--non-direct is valid only for migrate command\n",
3806                                         progname, argv[0]);
3807                                 goto usage_error;
3808                         }
3809                         migration_flags |= MIGRATION_NONDIRECT;
3810                         break;
3811                 case 'E':
3812                         if (lsa.lsa_comp_end != 0) {
3813                                 result = comp_args_to_layout(lpp, &lsa, true);
3814                                 if (result) {
3815                                         fprintf(stderr, "%s: invalid layout\n",
3816                                                 progname);
3817                                         goto usage_error;
3818                                 }
3819
3820                                 setstripe_args_init_inherit(&lsa);
3821                         }
3822
3823                         if (arg_is_eof(optarg)) {
3824                                 lsa.lsa_comp_end = LUSTRE_EOF;
3825                         } else {
3826                                 result = llapi_parse_size(optarg,
3827                                                           &lsa.lsa_comp_end,
3828                                                           &size_units, 0);
3829                                 /* assume units of KB if too small */
3830                                 if (lsa.lsa_comp_end < 4096)
3831                                         lsa.lsa_comp_end *= 1024;
3832                                 if (result ||
3833                                     lsa.lsa_comp_end & (LOV_MIN_STRIPE_SIZE - 1)) {
3834                                         fprintf(stderr,
3835                                                 "%s %s: invalid component end '%s'\n",
3836                                                 progname, argv[0], optarg);
3837                                         goto usage_error;
3838                                 }
3839                         }
3840                         break;
3841                 case 'H':
3842                         if (!migrate_mode) {
3843                                 fprintf(stderr,
3844                                         "--mdt-hash is valid only for migrate command\n");
3845                                 return CMD_HELP;
3846                         }
3847
3848                         lsa.lsa_pattern = check_hashtype(optarg);
3849                         if (lsa.lsa_pattern == 0) {
3850                                 fprintf(stderr,
3851                                         "%s %s: bad stripe hash type '%s'\n",
3852                                         progname, argv[0], optarg);
3853                                 return CMD_HELP;
3854                         }
3855                         break;
3856                 case 'i':
3857                         errno = 0;
3858                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3859                         if (errno != 0 || *end != '\0' ||
3860                             lsa.lsa_stripe_off < -1 ||
3861                             lsa.lsa_stripe_off > LOV_V1_INSANE_STRIPE_COUNT) {
3862                                 fprintf(stderr,
3863                                         "%s %s: invalid stripe offset '%s'\n",
3864                                         progname, argv[0], optarg);
3865                                 goto usage_error;
3866                         }
3867                         if (lsa.lsa_stripe_off == -1)
3868                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3869                         break;
3870                 case 'I':
3871                         comp_id = strtoul(optarg, &end, 0);
3872                         if (*end != '\0' || comp_id == 0 ||
3873                             comp_id > LCME_ID_MAX) {
3874                                 fprintf(stderr,
3875                                         "%s %s: invalid component ID '%s'\n",
3876                                         progname, argv[0], optarg);
3877                                 goto usage_error;
3878                         }
3879                         break;
3880                 case 'f':
3881                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3882                                 fprintf(stderr,
3883                                         "error: %s: invalid option: %s\n",
3884                                         progname, argv[optopt + 1]);
3885                                 goto usage_error;
3886                         }
3887                         if (opc == SO_MIRROR_EXTEND) {
3888                                 if (!last_mirror) {
3889                                         fprintf(stderr,
3890                                 "error: %s: '-N' must exist in front of '%s'\n",
3891                                                 progname, argv[optopt + 1]);
3892                                         goto usage_error;
3893                                 }
3894                                 last_mirror->m_file = optarg;
3895                                 last_mirror->m_count = 1;
3896                         } else {
3897                                 /* mirror split */
3898                                 if (!mirror_list)
3899                                         mirror_list = lfs_mirror_alloc();
3900                                 mirror_list->m_file = optarg;
3901                         }
3902                         has_m_file = true;
3903                         break;
3904                 case 'L':
3905                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3906                                 /* Can be only the first component */
3907                                 if (layout) {
3908                                         result = -EINVAL;
3909                                         fprintf(stderr,
3910                                                 "error: 'mdt' layout can be only the first one\n");
3911                                         goto error;
3912                                 }
3913                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3914                                         result = -EFBIG;
3915                                         fprintf(stderr,
3916                                                 "error: 'mdt' layout size is too big\n");
3917                                         goto error;
3918                                 }
3919                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3920                                 lsa.lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
3921                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3922                                 result = -EINVAL;
3923                                 fprintf(stderr,
3924                                         "error: layout '%s' is unknown, supported layouts are: 'mdt', 'raid0'\n",
3925                                         argv[optind]);
3926                                 goto error;
3927                         }
3928                         break;
3929                 case 'm':
3930                         if (!migrate_mode) {
3931                                 fprintf(stderr,
3932                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3933                                         progname, argv[0]);
3934                                 goto usage_error;
3935                         }
3936                         migrate_mdt_mode = true;
3937                         lsa.lsa_nr_tgts = parse_targets(tgts,
3938                                                 sizeof(tgts) / sizeof(__u32),
3939                                                 lsa.lsa_nr_tgts, optarg, NULL);
3940                         if (lsa.lsa_nr_tgts < 0) {
3941                                 fprintf(stderr,
3942                                         "%s: invalid MDT target(s) '%s'\n",
3943                                         progname, optarg);
3944                                 goto usage_error;
3945                         }
3946
3947                         lsa.lsa_tgts = tgts;
3948                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3949                                 lsa.lsa_stripe_off = tgts[0];
3950                         break;
3951                 case 'n':
3952                         if (!migrate_mode) {
3953                                 fprintf(stderr,
3954                                         "%s %s: -n|--non-block valid only for migrate command\n",
3955                                         progname, argv[0]);
3956                                 goto usage_error;
3957                         }
3958                         migration_flags |= MIGRATION_NONBLOCK;
3959                         break;
3960                 case 'N':
3961                         if (opc == SO_SETSTRIPE) {
3962                                 opc = SO_MIRROR_CREATE;
3963                                 mirror_mode = true;
3964                         }
3965                         mirror_count = 1;
3966                         if (optarg) {
3967                                 errno = 0;
3968                                 mirror_count = strtoul(optarg, &end, 0);
3969                                 if (errno != 0 || *end != '\0' ||
3970                                     mirror_count == 0 ||
3971                                     mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
3972                                         fprintf(stderr,
3973                                                 "error: %s: bad mirror count: %s\n",
3974                                                 progname, optarg);
3975                                         result = -EINVAL;
3976                                         goto error;
3977                                 }
3978                         }
3979
3980                         new_mirror = lfs_mirror_alloc();
3981                         new_mirror->m_count = mirror_count;
3982
3983                         if (!mirror_list)
3984                                 mirror_list = new_mirror;
3985
3986                         if (last_mirror) {
3987                                 /* wrap up last mirror */
3988                                 if (!setstripe_args_specified(&lsa))
3989                                         last_mirror->m_inherit = true;
3990                                 if (lsa.lsa_comp_end == 0)
3991                                         lsa.lsa_comp_end = LUSTRE_EOF;
3992
3993                                 result = comp_args_to_layout(lpp, &lsa, true);
3994                                 if (result) {
3995                                         lfs_mirror_free(new_mirror);
3996                                         goto error;
3997                                 }
3998
3999                                 setstripe_args_init_inherit(&lsa);
4000
4001                                 last_mirror->m_next = new_mirror;
4002                         }
4003
4004                         last_mirror = new_mirror;
4005                         lpp = &last_mirror->m_layout;
4006                         break;
4007                 case 'o':
4008 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4009                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
4010                                 fprintf(stderr,
4011                                         "warning: '--ost-list' is deprecated, use '--ost' instead\n");
4012 #endif
4013                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
4014                                 fprintf(stderr,
4015                                         "%s %s: -o|--ost incompatible with DoM layout\n",
4016                                         progname, argv[0]);
4017                                 goto usage_error;
4018                         }
4019                         /*
4020                          * -o allows overstriping, and must note it because
4021                          * parse_targets is shared with MDT striping, which
4022                          * does not allow duplicates
4023                          */
4024                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
4025                         lsa.lsa_nr_tgts = parse_targets(tgts,
4026                                                 sizeof(tgts) / sizeof(__u32),
4027                                                 lsa.lsa_nr_tgts, optarg,
4028                                                 &lsa.lsa_pattern);
4029                         if (lsa.lsa_nr_tgts < 0) {
4030                                 fprintf(stderr,
4031                                         "%s %s: invalid OST target(s) '%s'\n",
4032                                         progname, argv[0], optarg);
4033                                 goto usage_error;
4034                         }
4035
4036                         lsa.lsa_tgts = tgts;
4037                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4038                                 lsa.lsa_stripe_off = tgts[0];
4039                         break;
4040                 case 'p':
4041                         if (!optarg)
4042                                 goto usage_error;
4043                         lsa.lsa_pool_name = optarg;
4044
4045                         if (strlen(lsa.lsa_pool_name) == 0 ||
4046                             strncmp(lsa.lsa_pool_name, "none",
4047                                     LOV_MAXPOOLNAME) == 0)
4048                                 lsa.lsa_pool_name = NULL;
4049                         break;
4050                 case 'S':
4051                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
4052                                                   &size_units, 0);
4053                         /* assume units of KB if too small to be valid */
4054                         if (lsa.lsa_stripe_size < 4096)
4055                                 lsa.lsa_stripe_size *= 1024;
4056                         if (result ||
4057                             lsa.lsa_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
4058                                 fprintf(stderr,
4059                                         "%s %s: invalid stripe size '%s'\n",
4060                                         progname, argv[0], optarg);
4061                                 goto usage_error;
4062                         }
4063                         break;
4064                 case 'v':
4065                         if (!migrate_mode) {
4066                                 fprintf(stderr,
4067                                         "%s %s: -v|--verbose valid only for migrate command\n",
4068                                         progname, argv[0]);
4069                                 goto usage_error;
4070                         }
4071                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
4072                         migration_flags = MIGRATION_VERBOSE;
4073                         break;
4074                 case 'x':
4075                         xattr = optarg;
4076                         break;
4077                 case 'y':
4078                         from_yaml = true;
4079                         template = optarg;
4080                         break;
4081                 case 'z':
4082                         result = llapi_parse_size(optarg,
4083                                                   &lsa.lsa_extension_size,
4084                                                   &size_units, 0);
4085                         if (result) {
4086                                 fprintf(stderr,
4087                                         "%s %s: invalid extension size '%s'\n",
4088                                         progname, argv[0], optarg);
4089                                 goto usage_error;
4090                         }
4091
4092                         lsa.lsa_extension_comp = true;
4093                         break;
4094                 default:
4095                         fprintf(stderr, "%s: unrecognized option '%s'\n",
4096                                 progname, argv[optind - 1]);
4097                 case 'h':
4098                         goto usage_error;
4099                 }
4100         }
4101
4102         fname = argv[optind];
4103
4104         if (optind == argc) {
4105                 fprintf(stderr, "%s %s: FILE must be specified\n",
4106                         progname, argv[0]);
4107                 goto usage_error;
4108         }
4109
4110         /* lfs migrate $filename should keep the file's layout by default */
4111         if (migrate_mode && !setstripe_args_specified(&lsa) && !layout &&
4112             !from_yaml)
4113                 from_copy = true;
4114
4115         if (xattr && !foreign_mode) {
4116                 /*
4117                  * only print a warning as this is harmless and will be ignored
4118                  */
4119                 fprintf(stderr,
4120                         "%s %s: xattr has been specified for non-foreign layout\n",
4121                         progname, argv[0]);
4122         } else if (foreign_mode && !xattr) {
4123                 fprintf(stderr,
4124                         "%s %s: xattr must be provided in foreign mode\n",
4125                         progname, argv[0]);
4126                 goto usage_error;
4127         }
4128
4129         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
4130             comp_set || comp_id || delete || from_copy ||
4131             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
4132             lsa.lsa_tgts)) {
4133                 fprintf(stderr,
4134                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
4135                         progname, argv[0]);
4136                 return CMD_HELP;
4137         }
4138
4139         if (mirror_mode && mirror_count == 0) {
4140                 fprintf(stderr,
4141                         "error: %s: --mirror-count|-N option is required\n",
4142                         progname);
4143                 result = -EINVAL;
4144                 goto error;
4145         }
4146
4147         if (mirror_mode) {
4148                 if (!setstripe_args_specified(&lsa))
4149                         last_mirror->m_inherit = true;
4150                 if (lsa.lsa_comp_end == 0)
4151                         lsa.lsa_comp_end = LUSTRE_EOF;
4152         }
4153
4154         if (lsa.lsa_comp_end != 0) {
4155                 result = comp_args_to_layout(lpp, &lsa, true);
4156                 if (result) {
4157                         fprintf(stderr, "error: %s: invalid layout\n",
4158                                 progname);
4159                         result = -EINVAL;
4160                         goto error;
4161                 }
4162         }
4163
4164         if (mirror_flags & MF_NO_VERIFY) {
4165                 if (opc != SO_MIRROR_EXTEND) {
4166                         fprintf(stderr,
4167                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
4168                                 progname);
4169                         result = -EINVAL;
4170                         goto error;
4171                 } else if (!has_m_file) {
4172                         fprintf(stderr,
4173                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
4174                                 progname);
4175                         result = -EINVAL;
4176                         goto error;
4177                 }
4178         }
4179
4180         if (comp_set && !comp_id && !lsa.lsa_pool_name) {
4181                 fprintf(stderr,
4182                         "%s %s: --component-set doesn't have component-id set\n",
4183                         progname, argv[0]);
4184                 goto usage_error;
4185         }
4186
4187         if ((delete + comp_set + comp_del + comp_add) > 1) {
4188                 fprintf(stderr,
4189                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
4190                         progname, argv[0]);
4191                 goto usage_error;
4192         }
4193
4194         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
4195                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
4196                 fprintf(stderr,
4197                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
4198                         progname, argv[0]);
4199                 goto usage_error;
4200         }
4201
4202         if ((comp_set || comp_del) &&
4203             (setstripe_args_specified(&lsa) || layout != NULL)) {
4204                 fprintf(stderr,
4205                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
4206                         progname, argv[0]);
4207                 goto usage_error;
4208         }
4209
4210         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
4211                 fprintf(stderr,
4212                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
4213                         progname, argv[0]);
4214                 goto usage_error;
4215         }
4216
4217         if (comp_add || comp_del) {
4218                 struct stat st;
4219
4220                 result = lstat(fname, &st);
4221                 if (result == 0 && S_ISDIR(st.st_mode)) {
4222                         fprintf(stderr,
4223                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
4224                                 progname);
4225                         goto usage_error;
4226                 }
4227
4228                 if (mirror_mode) {
4229                         fprintf(stderr,
4230                                 "error: %s: can't use --component-add or --component-del for mirror operation\n",
4231                                 progname);
4232                         goto usage_error;
4233                 }
4234         }
4235
4236         if (comp_add) {
4237                 if (!layout) {
4238                         fprintf(stderr,
4239                                 "%s %s: option -E must be specified with --component-add\n",
4240                                 progname, argv[0]);
4241                         goto usage_error;
4242                 }
4243         }
4244
4245         if (from_yaml && from_copy) {
4246                 fprintf(stderr,
4247                         "%s: can't specify --yaml and --copy together\n",
4248                         progname);
4249                 goto error;
4250         }
4251
4252         if ((from_yaml || from_copy) &&
4253             (setstripe_args_specified(&lsa) || layout != NULL)) {
4254                 fprintf(stderr,
4255                         "error: %s: can't specify --yaml or --copy with -c, -S, -i, -o, -p or -E options.\n",
4256                         argv[0]);
4257                 goto error;
4258         }
4259
4260         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
4261                 fprintf(stderr,
4262                         "%s %s: options --non-block and --block are mutually exclusive\n",
4263                         progname, argv[0]);
4264                 goto usage_error;
4265         }
4266
4267         if (!comp_del && !comp_set && opc != SO_MIRROR_SPLIT &&
4268             opc != SO_MIRROR_DELETE && comp_id != 0) {
4269                 fprintf(stderr,
4270                         "%s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
4271                         progname);
4272                 goto usage_error;
4273         }
4274
4275         if (migrate_mdt_mode) {
4276                 struct lmv_user_md *lmu;
4277
4278                 /* initialize migrate mdt parameters */
4279                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
4280                                                  LMV_USER_MAGIC_SPECIFIC));
4281                 if (!lmu) {
4282                         fprintf(stderr,
4283                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
4284                                 progname, argv[0], strerror(ENOMEM));
4285                         result = -ENOMEM;
4286                         goto error;
4287                 }
4288                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
4289                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
4290                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
4291                         fprintf(stderr,
4292                                 "%s %s: migrate should specify MDT index\n",
4293                                 progname, argv[0]);
4294                         free(lmu);
4295                         goto usage_error;
4296                 }
4297                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
4298                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
4299                         lmu->lum_hash_type = lsa.lsa_pattern;
4300                 else
4301                         lmu->lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
4302                 if (lsa.lsa_pool_name) {
4303                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
4304                                 sizeof(lmu->lum_pool_name) - 1);
4305                         lmu->lum_pool_name[sizeof(lmu->lum_pool_name) - 1] = 0;
4306                 }
4307                 if (lsa.lsa_nr_tgts > 1) {
4308                         int i;
4309
4310                         if (lsa.lsa_stripe_count > 0 &&
4311                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
4312                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
4313                                 fprintf(stderr,
4314                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
4315                                         progname, lsa.lsa_stripe_count,
4316                                         lsa.lsa_nr_tgts);
4317                                 free(lmu);
4318                                 goto usage_error;
4319                         }
4320
4321                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
4322                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
4323                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
4324                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
4325                 } else {
4326                         lmu->lum_magic = LMV_USER_MAGIC;
4327                 }
4328
4329                 migrate_mdt_param.fp_lmv_md = lmu;
4330                 migrate_mdt_param.fp_migrate = 1;
4331         } else if (!layout) {
4332                 if (lsa_args_stripe_count_check(&lsa))
4333                         goto usage_error;
4334
4335                 /* initialize stripe parameters */
4336                 param = calloc(1, offsetof(typeof(*param),
4337                                lsp_osts[lsa.lsa_nr_tgts]));
4338                 if (!param) {
4339                         fprintf(stderr,
4340                                 "%s %s: cannot allocate memory for parameters: %s\n",
4341                                 progname, argv[0], strerror(ENOMEM));
4342                         result = -ENOMEM;
4343                         goto error;
4344                 }
4345
4346                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
4347                         param->lsp_stripe_size = lsa.lsa_stripe_size;
4348                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
4349                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
4350                                 param->lsp_stripe_count = -1;
4351                         else
4352                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
4353                 }
4354                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4355                         param->lsp_stripe_offset = -1;
4356                 else
4357                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
4358                 param->lsp_stripe_pattern =
4359                                 llapi_pattern_to_lov(lsa.lsa_pattern);
4360                 if (param->lsp_stripe_pattern == EINVAL) {
4361                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
4362                                 argv[0]);
4363                         free(param);
4364                         goto usage_error;
4365                 }
4366                 param->lsp_pool = lsa.lsa_pool_name;
4367                 param->lsp_is_specific = false;
4368
4369                 if (lsa.lsa_nr_tgts > 0) {
4370                         param->lsp_is_specific = true;
4371                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
4372                         memcpy(param->lsp_osts, tgts,
4373                                sizeof(*tgts) * lsa.lsa_nr_tgts);
4374                 }
4375         }
4376
4377         if (from_yaml) {
4378                 /* generate a layout from a YAML template */
4379                 result = lfs_comp_create_from_yaml(template, &layout,
4380                                                    &lsa, tgts);
4381                 if (result) {
4382                         fprintf(stderr,
4383                                 "error: %s: can't create composite layout from template file %s\n",
4384                                 argv[0], template);
4385                         goto error;
4386                 }
4387         }
4388
4389         if (layout != NULL || mirror_list != NULL) {
4390                 if (mirror_list)
4391                         result = mirror_adjust_first_extents(mirror_list);
4392                 else
4393                         result = layout_adjust_first_extent(fname, layout,
4394                                                             comp_add);
4395                 if (result == -ENODATA)
4396                         comp_add = 0;
4397                 else if (result != 0) {
4398                         fprintf(stderr, "error: %s: invalid layout\n",
4399                                 progname);
4400                         goto error;
4401                 }
4402         }
4403
4404         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
4405                 if (from_copy) {
4406                         layout = llapi_layout_get_by_path(template ?: fname, 0);
4407                         if (!layout) {
4408                                 fprintf(stderr,
4409                                         "%s: can't create composite layout from file %s: %s\n",
4410                                         progname, template ?: fname,
4411                                         strerror(errno));
4412                                 result = -errno;
4413                                 goto error;
4414                         }
4415                 }
4416
4417                 if (migrate_mdt_mode) {
4418                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
4419                 } else if (migrate_mode) {
4420                         result = lfs_migrate(fname, migration_flags, param,
4421                                              layout);
4422                 } else if (comp_set != 0) {
4423                         result = lfs_component_set(fname, comp_id,
4424                                                    lsa.lsa_pool_name,
4425                                                    lsa.lsa_comp_flags,
4426                                                    lsa.lsa_comp_neg_flags);
4427                 } else if (comp_del != 0) {
4428                         result = lfs_component_del(fname, comp_id,
4429                                                    lsa.lsa_comp_flags,
4430                                                    lsa.lsa_comp_neg_flags);
4431                 } else if (comp_add != 0) {
4432                         result = lfs_component_add(fname, layout);
4433                 } else if (opc == SO_MIRROR_CREATE) {
4434                         result = mirror_create(fname, mirror_list);
4435                 } else if (opc == SO_MIRROR_EXTEND) {
4436                         result = mirror_extend(fname, mirror_list,
4437                                                mirror_flags);
4438                 } else if (opc == SO_MIRROR_SPLIT || opc == SO_MIRROR_DELETE) {
4439                         if (!mirror_id && !comp_id && !lsa.lsa_pool_name) {
4440                                 fprintf(stderr,
4441                                         "%s: no mirror id, component id, or pool name specified to delete from '%s'\n",
4442                                         progname, fname);
4443                                 goto usage_error;
4444                         }
4445                         if (lsa.lsa_pool_name)
4446                                 mirror_flags |= MF_COMP_POOL;
4447                         else if (mirror_id != 0)
4448                                 comp_id = mirror_id;
4449                         else
4450                                 mirror_flags |= MF_COMP_ID;
4451                         if (has_m_file && !strcmp(fname, mirror_list->m_file)) {
4452                                 fprintf(stderr,
4453                                         "%s: the file specified by -f cannot be same as the source file '%s'\n",
4454                                         progname, fname);
4455                                 goto usage_error;
4456                         }
4457                         result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
4458                                               mirror_flags,
4459                                               has_m_file ? mirror_list->m_file :
4460                                               NULL);
4461                 } else if (layout) {
4462                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
4463                                                       mode, layout);
4464                         if (result >= 0) {
4465                                 close(result);
4466                                 result = 0;
4467                         }
4468                 } else if (foreign_mode) {
4469                         result = llapi_file_create_foreign(fname, mode, type,
4470                                                            flags, xattr);
4471                         if (result >= 0) {
4472                                 close(result);
4473                                 result = 0;
4474                         }
4475                 } else {
4476                         result = llapi_file_open_param(fname,
4477                                                        O_CREAT | O_WRONLY,
4478                                                        mode, param);
4479                         if (result >= 0) {
4480                                 close(result);
4481                                 result = 0;
4482                         }
4483                 }
4484                 if (result) {
4485                         /* Save the first error encountered. */
4486                         if (result2 == 0)
4487                                 result2 = result;
4488                         continue;
4489                 }
4490         }
4491
4492         if (mode_opt)
4493                 umask(previous_umask);
4494
4495         free(param);
4496         free(migrate_mdt_param.fp_lmv_md);
4497         llapi_layout_free(layout);
4498         lfs_mirror_list_free(mirror_list);
4499         return result2;
4500 usage_error:
4501         result = CMD_HELP;
4502 error:
4503         llapi_layout_free(layout);
4504         lfs_mirror_list_free(mirror_list);
4505         return result;
4506 }
4507
4508 static int lfs_poollist(int argc, char **argv)
4509 {
4510         if (argc != 2)
4511                 return CMD_HELP;
4512
4513         return llapi_poollist(argv[1]);
4514 }
4515
4516 #define FP_DEFAULT_TIME_MARGIN (24 * 60 * 60)
4517 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
4518                        char *str)
4519 {
4520         long long t = 0;
4521         int sign = 0;
4522         char *endptr = "AD";
4523         char *timebuf;
4524
4525         if (str[0] == '+')
4526                 sign = 1;
4527         else if (str[0] == '-')
4528                 sign = -1;
4529
4530         if (sign)
4531                 str++;
4532
4533         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
4534                 long long val = strtoll(timebuf, &endptr, 0);
4535                 int unit = 1;
4536
4537                 switch (*endptr) {
4538                 case  'y':
4539                         unit *= 52; /* 52 weeks + 1 day below */
4540                 case  'w':      /* fallthrough */
4541                         unit *= 7;
4542                         if (param->fp_time_margin == FP_DEFAULT_TIME_MARGIN)
4543                                 param->fp_time_margin *= (1 + unit / 52);
4544                         unit += (*endptr == 'y'); /* +1 day for 365 days/year */
4545                 case '\0': /* days are default unit if none used */
4546                 case  'd':      /* fallthrough */
4547                         unit *= 24;
4548                 case  'h':      /* fallthrough */
4549                         unit *= 60;
4550                 case  'm':      /* fallthrough */
4551                         unit *= 60;
4552                 case  's':      /* fallthrough */
4553                         break;
4554                         /* don't need to multiply by 1 for seconds */
4555                 default:
4556                         fprintf(stderr,
4557                                 "%s find: bad time string '%s': %s\n",
4558                                 progname, timebuf, strerror(EINVAL));
4559                         return LONG_MAX;
4560                 }
4561
4562                 if (param->fp_time_margin == 0 ||
4563                     (*endptr && unit < param->fp_time_margin))
4564                         param->fp_time_margin = unit;
4565
4566                 t += val * unit;
4567         }
4568         if (*time < t) {
4569                 if (sign != 0)
4570                         str--;
4571                 fprintf(stderr, "%s find: bad time '%s': too large\n",
4572                         progname, str);
4573                 return LONG_MAX;
4574         }
4575
4576         *set = *time - t;
4577
4578         return sign;
4579 }
4580
4581 static int str2quotaid(__u32 *id, const char *arg)
4582 {
4583         unsigned long int projid_tmp = 0;
4584         char *endptr = NULL;
4585
4586         projid_tmp = strtoul(arg, &endptr, 10);
4587         if (*endptr != '\0')
4588                 return -EINVAL;
4589         /* UINT32_MAX is not allowed - see projid_valid()/INVALID_PROJID */
4590         if (projid_tmp >= UINT32_MAX)
4591                 return -ERANGE;
4592
4593         *id = projid_tmp;
4594         return 0;
4595 }
4596
4597 static int name2uid(unsigned int *id, const char *name)
4598 {
4599         struct passwd *passwd;
4600
4601         passwd = getpwnam(name);
4602         if (!passwd)
4603                 return -ENOENT;
4604         *id = passwd->pw_uid;
4605
4606         return 0;
4607 }
4608
4609 static int name2gid(unsigned int *id, const char *name)
4610 {
4611         struct group *group;
4612
4613         group = getgrnam(name);
4614         if (!group)
4615                 return -ENOENT;
4616         *id = group->gr_gid;
4617
4618         return 0;
4619 }
4620
4621 static inline int name2projid(unsigned int *id, const char *name)
4622 {
4623         return -ENOTSUP;
4624 }
4625
4626 static int uid2name(char **name, unsigned int id)
4627 {
4628         struct passwd *passwd;
4629
4630         passwd = getpwuid(id);
4631         if (!passwd)
4632                 return -ENOENT;
4633         *name = passwd->pw_name;
4634
4635         return 0;
4636 }
4637
4638 static inline int gid2name(char **name, unsigned int id)
4639 {
4640         struct group *group;
4641
4642         group = getgrgid(id);
4643         if (!group)
4644                 return -ENOENT;
4645         *name = group->gr_name;
4646
4647         return 0;
4648 }
4649
4650 static int name2layout(__u32 *layout, char *name)
4651 {
4652         char *ptr, *layout_name;
4653
4654         *layout = 0;
4655         for (ptr = name; ; ptr = NULL) {
4656                 layout_name = strtok(ptr, ",");
4657                 if (!layout_name)
4658                         break;
4659                 if (strcmp(layout_name, "released") == 0)
4660                         *layout |= LOV_PATTERN_F_RELEASED;
4661                 else if (strcmp(layout_name, "raid0") == 0)
4662                         *layout |= LOV_PATTERN_RAID0;
4663                 else if (strcmp(layout_name, "mdt") == 0)
4664                         *layout |= LOV_PATTERN_MDT;
4665                 else if (strcmp(layout_name, "overstriping") == 0)
4666                         *layout |= LOV_PATTERN_OVERSTRIPING;
4667                 else
4668                         return -1;
4669         }
4670         return 0;
4671 }
4672
4673 static int parse_symbolic(const char *input, mode_t *outmode, const char **end)
4674 {
4675         int loop;
4676         int user, group, other;
4677         int who, all;
4678         char c, op;
4679         mode_t perm;
4680         mode_t usermask;
4681         mode_t previous_flags;
4682
4683         user = group = other = 0;
4684         all = 0;
4685         loop = 1;
4686         perm = 0;
4687         previous_flags = 0;
4688         *end = input;
4689         usermask = 0;
4690
4691         while (loop) {
4692                 switch (*input) {
4693                 case 'u':
4694                         user = 1;
4695                         break;
4696                 case 'g':
4697                         group = 1;
4698                         break;
4699                 case 'o':
4700                         other = 1;
4701                         break;
4702                 case 'a':
4703                         user = group = other = 1;
4704                         all = 1;
4705                         break;
4706                 default:
4707                         loop = 0;
4708                 }
4709
4710                 if (loop)
4711                         input++;
4712         }
4713
4714         who = user || group || other;
4715         if (!who) {
4716                 /* get the umask */
4717                 usermask = umask(0022);
4718                 umask(usermask);
4719                 usermask &= 07777;
4720         }
4721
4722         if (*input == '-' || *input == '+' || *input == '=')
4723                 op = *input++;
4724         else
4725                 /* operation is required */
4726                 return -1;
4727
4728         /* get the flags in *outmode */
4729         switch (*input) {
4730         case 'u':
4731                 previous_flags = (*outmode & 0700);
4732                 perm |= user  ? previous_flags : 0;
4733                 perm |= group ? (previous_flags >> 3) : 0;
4734                 perm |= other ? (previous_flags >> 6) : 0;
4735                 input++;
4736                 goto write_perm;
4737         case 'g':
4738                 previous_flags = (*outmode & 0070);
4739                 perm |= user  ? (previous_flags << 3) : 0;
4740                 perm |= group ? previous_flags : 0;
4741                 perm |= other ? (previous_flags >> 3) : 0;
4742                 input++;
4743                 goto write_perm;
4744         case 'o':
4745                 previous_flags = (*outmode & 0007);
4746                 perm |= user  ? (previous_flags << 6) : 0;
4747                 perm |= group ? (previous_flags << 3) : 0;
4748                 perm |= other ? previous_flags : 0;
4749                 input++;
4750                 goto write_perm;
4751         default:
4752                 break;
4753         }
4754
4755         /* this part is optional,
4756          * if empty perm = 0 and *outmode is not modified
4757          */
4758         loop = 1;
4759         while (loop) {
4760                 c = *input;
4761                 switch (c) {
4762                 case 'r':
4763                         perm |= user  ? 0400 : 0;
4764                         perm |= group ? 0040 : 0;
4765                         perm |= other ? 0004 : 0;
4766                         /* set read permission for uog except for umask's
4767                          * permissions
4768                          */
4769                         perm |= who   ? 0 : (0444 & ~usermask);
4770                         break;
4771                 case 'w':
4772                         perm |= user  ? 0200 : 0;
4773                         perm |= group ? 0020 : 0;
4774                         perm |= other ? 0002 : 0;
4775                         /* set write permission for uog except for umask'
4776                          * permissions
4777                          */
4778                         perm |= who   ? 0 : (0222 & ~usermask);
4779                         break;
4780                 case 'x':
4781                         perm |= user  ? 0100 : 0;
4782                         perm |= group ? 0010 : 0;
4783                         perm |= other ? 0001 : 0;
4784                         /* set execute permission for uog except for umask'
4785                          * permissions
4786                          */
4787                         perm |= who   ? 0 : (0111 & ~usermask);
4788                         break;
4789                 case 'X':
4790                         /*
4791                          * Adds execute permission to 'u', 'g' and/or 'g' if
4792                          * specified and either 'u', 'g' or 'o' already has
4793                          * execute permissions.
4794                          */
4795                         if ((*outmode & 0111) != 0) {
4796                                 perm |= user  ? 0100 : 0;
4797                                 perm |= group ? 0010 : 0;
4798                                 perm |= other ? 0001 : 0;
4799                                 perm |= !who  ? 0111 : 0;
4800                         }
4801                         break;
4802                 case 's':
4803                         /* s is ignored if o is given, but it's not an error */
4804                         if (other && !group && !user)
4805                                 break;
4806                         perm |= user  ? S_ISUID : 0;
4807                         perm |= group ? S_ISGID : 0;
4808                         break;
4809                 case 't':
4810                         /* 't' should be used when 'a' is given
4811                          * or who is empty
4812                          */
4813                         perm |= (!who || all) ? S_ISVTX : 0;
4814                         /* using ugo with t is not an error */
4815                         break;
4816                 default:
4817                         loop = 0;
4818                         break;
4819                 }
4820                 if (loop)
4821                         input++;
4822         }
4823
4824 write_perm:
4825         /* uog flags should be only one character long */
4826         if (previous_flags && (*input != '\0' && *input != ','))
4827                 return -1;
4828
4829         switch (op) {
4830         case '-':
4831                 /* remove the flags from outmode */
4832                 *outmode &= ~perm;
4833                 break;
4834         case '+':
4835                 /* add the flags to outmode */
4836                 *outmode |= perm;
4837                 break;
4838         case '=':
4839                 /* set the flags of outmode to perm */
4840                 if (perm != 0)
4841                         *outmode = perm;
4842                 break;
4843         }
4844
4845         *end = input;
4846         return 0;
4847 }
4848
4849 static int str2mode_t(const char *input, mode_t *outmode)
4850 {
4851         int ret;
4852         const char *iter;
4853
4854         ret = 0;
4855
4856         if (*input >= '0' && *input <= '7') {
4857                 /* parse octal representation */
4858                 char *end;
4859
4860                 iter = input;
4861
4862                 /* look for invalid digits in octal representation */
4863                 while (isdigit(*iter))
4864                         if (*iter++ > '7')
4865                                 return -1;
4866
4867                 errno = 0;
4868                 *outmode = strtoul(input, &end, 8);
4869
4870                 if (errno != 0 || *outmode > 07777) {
4871                         *outmode = 0;
4872                         ret = -1;
4873                 }
4874
4875         } else if (*input == '8' || *input == '9') {
4876                 /* error: invalid octal number */
4877                 ret = -1;
4878         } else {
4879                 /* parse coma seperated list of symbolic representation */
4880                 int rc;
4881                 const char *end;
4882
4883                 *outmode = 0;
4884                 rc = 0;
4885                 end = NULL;
4886
4887                 do {
4888                         rc = parse_symbolic(input, outmode, &end);
4889                         if (rc)
4890                                 return -1;
4891
4892                         input = end+1;
4893                 } while (*end == ',');
4894
4895                 if (*end != '\0')
4896                         ret = -1;
4897         }
4898         return ret;
4899 }
4900
4901 static int lfs_find(int argc, char **argv)
4902 {
4903         int c, rc;
4904         int ret = 0;
4905         time_t t;
4906         struct find_param param = {
4907                 .fp_max_depth = -1,
4908                 .fp_quiet = 1,
4909                 .fp_time_margin = FP_DEFAULT_TIME_MARGIN,
4910         };
4911         struct option long_opts[] = {
4912         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
4913         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
4914         { .val = 'B',   .name = "btime",        .has_arg = required_argument },
4915         { .val = 'B',   .name = "Btime",        .has_arg = required_argument },
4916         { .val = LFS_COMP_COUNT_OPT,
4917                         .name = "comp-count",   .has_arg = required_argument },
4918         { .val = LFS_COMP_COUNT_OPT,
4919                         .name = "component-count",
4920                                                 .has_arg = required_argument },
4921         { .val = LFS_COMP_FLAGS_OPT,
4922                         .name = "comp-flags",   .has_arg = required_argument },
4923         { .val = LFS_COMP_FLAGS_OPT,
4924                         .name = "component-flags",
4925                                                 .has_arg = required_argument },
4926         { .val = LFS_COMP_START_OPT,
4927                         .name = "comp-start",   .has_arg = required_argument },
4928         { .val = LFS_COMP_START_OPT,
4929                         .name = "component-start",
4930                                                 .has_arg = required_argument },
4931         { .val = LFS_MIRROR_STATE_OPT,
4932                         .name = "mirror-state", .has_arg = required_argument },
4933         { .val = LFS_NEWERXY_OPT,
4934                         .name = "newer",        .has_arg = required_argument},
4935         { .val = LFS_NEWERXY_OPT,
4936                         .name = "neweraa",      .has_arg = required_argument},
4937         { .val = LFS_NEWERXY_OPT,
4938                         .name = "neweram",      .has_arg = required_argument},
4939         { .val = LFS_NEWERXY_OPT,
4940                         .name = "newerac",      .has_arg = required_argument},
4941         { .val = LFS_NEWERXY_OPT,
4942                         .name = "newerab",      .has_arg = required_argument},
4943         { .val = LFS_NEWERXY_OPT,
4944                         .name = "newerma",      .has_arg = required_argument},
4945         { .val = LFS_NEWERXY_OPT,
4946                         .name = "newermm",      .has_arg = required_argument},
4947         { .val = LFS_NEWERXY_OPT,
4948                         .name = "newermc",      .has_arg = required_argument},
4949         { .val = LFS_NEWERXY_OPT,
4950                         .name = "newermb",      .has_arg = required_argument},
4951         { .val = LFS_NEWERXY_OPT,
4952                         .name = "newerca",      .has_arg = required_argument},
4953         { .val = LFS_NEWERXY_OPT,
4954                         .name = "newercm",      .has_arg = required_argument},
4955         { .val = LFS_NEWERXY_OPT,
4956                         .name = "newercc",      .has_arg = required_argument},
4957         { .val = LFS_NEWERXY_OPT,
4958                         .name = "newercb",      .has_arg = required_argument},
4959         { .val = LFS_NEWERXY_OPT,
4960                         .name = "newerba",      .has_arg = required_argument},
4961         { .val = LFS_NEWERXY_OPT,
4962                         .name = "newerbm",      .has_arg = required_argument},
4963         { .val = LFS_NEWERXY_OPT,
4964                         .name = "newerbc",      .has_arg = required_argument},
4965         { .val = LFS_NEWERXY_OPT,
4966                         .name = "newerbb",      .has_arg = required_argument},
4967         { .val = LFS_NEWERXY_OPT,
4968                         .name = "newerBa",      .has_arg = required_argument},
4969         { .val = LFS_NEWERXY_OPT,
4970                         .name = "newerBm",      .has_arg = required_argument},
4971         { .val = LFS_NEWERXY_OPT,
4972                         .name = "newerBc",      .has_arg = required_argument},
4973         { .val = LFS_NEWERXY_OPT,
4974                         .name = "newerBB",      .has_arg = required_argument},
4975         { .val = LFS_NEWERXY_OPT,
4976                         .name = "newerat",      .has_arg = required_argument},
4977         { .val = LFS_NEWERXY_OPT,
4978                         .name = "newermt",      .has_arg = required_argument},
4979         { .val = LFS_NEWERXY_OPT,
4980                         .name = "newerct",      .has_arg = required_argument},
4981         { .val = LFS_NEWERXY_OPT,
4982                         .name = "newerbt",      .has_arg = required_argument},
4983         { .val = LFS_NEWERXY_OPT,
4984                         .name = "newerBt",      .has_arg = required_argument},
4985         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
4986         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
4987         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
4988 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
4989         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
4990         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
4991         { .val = 'E',   .name = "component-end",
4992                                                 .has_arg = required_argument },
4993 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
4994         { .val = LFS_LAYOUT_FOREIGN_OPT,
4995                         .name = "foreign",      .has_arg = optional_argument},
4996         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
4997         { .val = 'G',   .name = "group",        .has_arg = required_argument },
4998         { .val = 'h',   .name = "help",         .has_arg = no_argument },
4999         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
5000         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
5001         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
5002 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
5003         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
5004         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
5005         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5006         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5007         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
5008         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
5009         { .val = 'n',   .name = "name",         .has_arg = required_argument },
5010         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
5011 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
5012         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5013         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
5014         /* no short option for pool yet, can be 'p' after 2.18 */
5015         { .val = LFS_POOL_OPT,
5016                         .name = "pool",         .has_arg = required_argument },
5017         { .val = '0',   .name = "print0",       .has_arg = no_argument },
5018         { .val = 'P',   .name = "print",        .has_arg = no_argument },
5019         { .val = LFS_PROJID_OPT,
5020                         .name = "projid",       .has_arg = required_argument },
5021 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
5022 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
5023 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
5024         { .val = 's',   .name = "size",         .has_arg = required_argument },
5025         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
5026         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
5027         { .val = 't',   .name = "type",         .has_arg = required_argument },
5028         { .val = LFS_FIND_PERM,
5029                         .name = "perm",         .has_arg = required_argument },
5030         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
5031         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
5032         { .val = 'U',   .name = "user",         .has_arg = required_argument },
5033         { .val = 'z',   .name = "extension-size",
5034                                                 .has_arg = required_argument },
5035         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument },
5036 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
5037 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
5038         { .name = NULL } };
5039         int optidx = 0;
5040         int pathstart = -1;
5041         int pathend = -1;
5042         int pathbad = -1;
5043         int neg_opt = 0;
5044         time_t *xtime;
5045         int *xsign;
5046         int isoption;
5047         char *endptr;
5048
5049         time(&t);
5050
5051         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
5052         while ((c = getopt_long_only(argc, argv,
5053                 "-0A:b:B:c:C:D:E:g:G:hH:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:vz:",
5054                 long_opts, &optidx)) >= 0) {
5055                 xtime = NULL;
5056                 xsign = NULL;
5057                 if (neg_opt)
5058                         --neg_opt;
5059                 /* '!' is part of option */
5060                 /*
5061                  * when getopt_long_only() finds a string which is not
5062                  * an option nor a known option argument it returns 1
5063                  * in that case if we already have found pathstart and pathend
5064                  * (i.e. we have the list of pathnames),
5065                  * the only supported value is "!"
5066                  */
5067                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5068                 if (!isoption && pathend != -1) {
5069                         fprintf(stderr,
5070                                 "err: %s: filename|dirname must either precede options or follow options\n",
5071                                 argv[0]);
5072                         ret = CMD_HELP;
5073                         goto err;
5074                 }
5075                 if (!isoption && pathstart == -1)
5076                         pathstart = optind - 1;
5077                 if (isoption && pathstart != -1 && pathend == -1)
5078                         pathend = optind - 2;
5079                 switch (c) {
5080                 case 0:
5081                         /* Long options. */
5082                         break;
5083                 case 1:
5084                         /*
5085                          * unknown; opt is "!" or path component,
5086                          * checking done above.
5087                          */
5088                         if (strcmp(optarg, "!") == 0)
5089                                 neg_opt = 2;
5090                         break;
5091                 case 'A':
5092                         xtime = &param.fp_atime;
5093                         xsign = &param.fp_asign;
5094                         param.fp_exclude_atime = !!neg_opt;
5095                         /* no break, this falls through to 'B' for btime */
5096                 case 'B':
5097                         if (c == 'B') {
5098                                 xtime = &param.fp_btime;
5099                                 xsign = &param.fp_bsign;
5100                                 param.fp_exclude_btime = !!neg_opt;
5101                         }
5102                         /* no break, this falls through to 'C' for ctime */
5103                 case 'C':
5104                         if (c == 'C') {
5105                                 xtime = &param.fp_ctime;
5106                                 xsign = &param.fp_csign;
5107                                 param.fp_exclude_ctime = !!neg_opt;
5108                         }
5109                         /* no break, this falls through to 'M' for mtime */
5110                 case 'M':
5111                         if (c == 'M') {
5112                                 xtime = &param.fp_mtime;
5113                                 xsign = &param.fp_msign;
5114                                 param.fp_exclude_mtime = !!neg_opt;
5115                         }
5116                         rc = set_time(&param, &t, xtime, optarg);
5117                         if (rc == LONG_MAX) {
5118                                 ret = -1;
5119                                 goto err;
5120                         }
5121                         if (rc)
5122                                 *xsign = rc;
5123                         break;
5124                 case 'b':
5125                         if (optarg[0] == '+') {
5126                                 param.fp_blocks_sign = -1;
5127                                 optarg++;
5128                         } else if (optarg[0] == '-') {
5129                                 param.fp_blocks_sign =  1;
5130                                 optarg++;
5131                         }
5132
5133                         param.fp_blocks_units = 1024;
5134                         ret = llapi_parse_size(optarg, &param.fp_blocks,
5135                                                &param.fp_blocks_units, 0);
5136                         if (ret) {
5137                                 fprintf(stderr, "error: bad blocks '%s'\n",
5138                                         optarg);
5139                                 goto err;
5140                         }
5141                         param.fp_check_blocks = 1;
5142                         param.fp_exclude_blocks = !!neg_opt;
5143                         break;
5144                 case LFS_COMP_COUNT_OPT:
5145                         if (optarg[0] == '+') {
5146                                 param.fp_comp_count_sign = -1;
5147                                 optarg++;
5148                         } else if (optarg[0] == '-') {
5149                                 param.fp_comp_count_sign =  1;
5150                                 optarg++;
5151                         }
5152
5153                         errno = 0;
5154                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
5155                         if (errno != 0 || *endptr != '\0' ||
5156                             param.fp_comp_count > UINT32_MAX) {
5157                                 fprintf(stderr,
5158                                         "error: bad component count '%s'\n",
5159                                         optarg);
5160                                 goto err;
5161                         }
5162                         param.fp_check_comp_count = 1;
5163                         param.fp_exclude_comp_count = !!neg_opt;
5164                         break;
5165                 case LFS_COMP_FLAGS_OPT:
5166                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
5167                                             &param.fp_comp_neg_flags);
5168                         if (rc) {
5169                                 fprintf(stderr,
5170                                         "error: bad component flags '%s'\n",
5171                                         optarg);
5172                                 goto err;
5173                         }
5174                         param.fp_check_comp_flags = 1;
5175                         if (neg_opt) {
5176                                 __u32 flags = param.fp_comp_neg_flags;
5177
5178                                 param.fp_comp_neg_flags = param.fp_comp_flags;
5179                                 param.fp_comp_flags = flags;
5180                         }
5181                         break;
5182                 case LFS_COMP_START_OPT:
5183                         if (optarg[0] == '+') {
5184                                 param.fp_comp_start_sign = -1;
5185                                 optarg++;
5186                         } else if (optarg[0] == '-') {
5187                                 param.fp_comp_start_sign =  1;
5188                                 optarg++;
5189                         }
5190
5191                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
5192                                               &param.fp_comp_start_units, 0);
5193                         if (rc) {
5194                                 fprintf(stderr,
5195                                         "error: bad component start '%s'\n",
5196                                         optarg);
5197                                 goto err;
5198                         }
5199                         param.fp_check_comp_start = 1;
5200                         param.fp_exclude_comp_start = !!neg_opt;
5201                         break;
5202                 case LFS_MIRROR_STATE_OPT:
5203                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
5204                                               &param.fp_mirror_neg_state);
5205                         if (rc) {
5206                                 fprintf(stderr,
5207                                         "error: bad mirrored file state '%s'\n",
5208                                         optarg);
5209                                 goto err;
5210                         }
5211                         param.fp_check_mirror_state = 1;
5212                         if (neg_opt) {
5213                                 __u16 state = param.fp_mirror_neg_state;
5214
5215                                 param.fp_mirror_neg_state =
5216                                         param.fp_mirror_state;
5217                                 param.fp_mirror_state = state;
5218                         }
5219                         break;
5220                 case 'c':
5221                         if (optarg[0] == '+') {
5222                                 param.fp_stripe_count_sign = -1;
5223                                 optarg++;
5224                         } else if (optarg[0] == '-') {
5225                                 param.fp_stripe_count_sign =  1;
5226                                 optarg++;
5227                         }
5228
5229                         errno = 0;
5230                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
5231                         if (errno != 0 || *endptr != '\0' ||
5232                             param.fp_stripe_count > LOV_MAX_STRIPE_COUNT) {
5233                                 fprintf(stderr,
5234                                         "error: bad stripe_count '%s'\n",
5235                                         optarg);
5236                                 ret = -1;
5237                                 goto err;
5238                         }
5239                         param.fp_check_stripe_count = 1;
5240                         param.fp_exclude_stripe_count = !!neg_opt;
5241                         break;
5242                 case 'D':
5243                         errno = 0;
5244                         param.fp_max_depth = strtol(optarg, 0, 0);
5245                         if (errno != 0 || param.fp_max_depth < 0) {
5246                                 fprintf(stderr,
5247                                         "error: bad maxdepth '%s'\n",
5248                                         optarg);
5249                                 ret = -1;
5250                                 goto err;
5251                         }
5252                         break;
5253                 case 'E':
5254                         if (optarg[0] == '+') {
5255                                 param.fp_comp_end_sign = -1;
5256                                 optarg++;
5257                         } else if (optarg[0] == '-') {
5258                                 param.fp_comp_end_sign =  1;
5259                                 optarg++;
5260                         }
5261
5262                         if (arg_is_eof(optarg)) {
5263                                 param.fp_comp_end = LUSTRE_EOF;
5264                                 param.fp_comp_end_units = 1;
5265                                 rc = 0;
5266                         } else {
5267                                 rc = llapi_parse_size(optarg,
5268                                                 &param.fp_comp_end,
5269                                                 &param.fp_comp_end_units, 0);
5270                                 /* assume units of KB if too small */
5271                                 if (param.fp_comp_end < 4096)
5272                                         param.fp_comp_end *= 1024;
5273                         }
5274                         if (rc) {
5275                                 fprintf(stderr,
5276                                         "error: bad component end '%s'\n",
5277                                         optarg);
5278                                 goto err;
5279                         }
5280                         param.fp_check_comp_end = 1;
5281                         param.fp_exclude_comp_end = !!neg_opt;
5282                         break;
5283                 case LFS_LAYOUT_FOREIGN_OPT: {
5284                         /* all types by default */
5285                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
5286
5287                         if (optarg) {
5288                                 /* check pure numeric */
5289                                 type = strtoul(optarg, &endptr, 0);
5290                                 if (*endptr) {
5291                                         /* check name */
5292                                         type = check_foreign_type_name(optarg);
5293                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
5294                                                 fprintf(stderr,
5295                                                         "%s %s: unknown foreign type '%s'\n",
5296                                                         progname, argv[0],
5297                                                         optarg);
5298                                                 return CMD_HELP;
5299                                         }
5300                                 } else if (type >= UINT32_MAX) {
5301                                         fprintf(stderr,
5302                                                 "%s %s: invalid foreign type '%s'\n",
5303                                                 progname, argv[0], optarg);
5304                                         return CMD_HELP;
5305                                 }
5306                         }
5307                         param.fp_foreign_type = type;
5308                         param.fp_check_foreign = 1;
5309                         param.fp_exclude_foreign = !!neg_opt;
5310                         break;
5311                 }
5312                 case LFS_NEWERXY_OPT: {
5313                         char x = 'm';
5314                         char y = 'm';
5315                         int xidx;
5316                         int negidx;
5317                         time_t *newery;
5318                         time_t ref = time(NULL);
5319
5320                         /* no need to check bad options, they won't get here */
5321                         if (strlen(long_opts[optidx].name) == 7) {
5322                                 x = long_opts[optidx].name[5];
5323                                 y = long_opts[optidx].name[6];
5324                         }
5325
5326                         if (y == 't') {
5327                                 static const char *const fmts[] = {
5328                                         "%Y-%m-%d %H:%M:%S",
5329                                         "%Y-%m-%d %H:%M",
5330                                         "%Y-%m-%d",
5331                                         "%H:%M:%S", /* sometime today */
5332                                         "%H:%M",
5333                                         "@%s",
5334                                         "%s",
5335                                         NULL };
5336                                 struct tm tm;
5337                                 bool found = false;
5338                                 int i;
5339
5340                                 for (i = 0; fmts[i] != NULL; i++) {
5341                                         char *ptr;
5342
5343                                         /* Init for times relative to today */
5344                                         if (strncmp(fmts[i], "%H", 2) == 0)
5345                                                 localtime_r(&ref, &tm);
5346                                         else
5347                                                 memset(&tm, 0, sizeof(tm));
5348                                         ptr = strptime(optarg, fmts[i], &tm);
5349                                         /* Skip spaces */
5350                                         while (ptr && isspace(*ptr))
5351                                                 ptr++;
5352                                         if (ptr == optarg + strlen(optarg)) {
5353                                                 found = true;
5354                                                 break;
5355                                         }
5356                                 }
5357
5358                                 if (!found) {
5359                                         fprintf(stderr,
5360                                                 "%s: invalid time '%s'\n",
5361                                                 progname, optarg);
5362                                         fprintf(stderr,
5363                                                 "supported formats are:\n  ");
5364                                         for (i = 0; fmts[i] != NULL; i++)
5365                                                 fprintf(stderr, "'%s', ",
5366                                                         fmts[i]);
5367                                         fprintf(stderr, "\n");
5368                                         ret = -EINVAL;
5369                                         goto err;
5370                                 }
5371
5372                                 ref = mktime(&tm);
5373                         } else if (y == 'b' || y == 'B') {
5374                                 lstatx_t stx;
5375
5376                                 rc = llapi_get_lum_file(optarg, NULL, &stx,
5377                                                         NULL, 0);
5378                                 if (rc || !(stx.stx_mask & STATX_BTIME)) {
5379                                         if (!(stx.stx_mask & STATX_BTIME))
5380                                                 ret = -EOPNOTSUPP;
5381                                         else
5382                                                 ret = -errno;
5383                                         fprintf(stderr,
5384                                                 "%s: get btime failed '%s': %s\n",
5385                                                 progname, optarg,
5386                                                 strerror(-ret));
5387                                         goto err;
5388                                 }
5389
5390                                 ref = stx.stx_btime.tv_sec;
5391                         } else {
5392                                 struct stat statbuf;
5393
5394                                 if (stat(optarg, &statbuf) < 0) {
5395                                         fprintf(stderr,
5396                                                 "%s: cannot stat file '%s': %s\n",
5397                                                 progname, optarg,
5398                                                 strerror(errno));
5399                                         ret = -errno;
5400                                         goto err;
5401                                 }
5402
5403                                 switch (y) {
5404                                 case 'a':
5405                                         ref = statbuf.st_atime;
5406                                         break;
5407                                 case 'm':
5408                                         ref = statbuf.st_mtime;
5409                                         break;
5410                                 case 'c':
5411                                         ref = statbuf.st_ctime;
5412                                         break;
5413                                 default:
5414                                         fprintf(stderr,
5415                                                 "%s: invalid Y argument: '%c'\n",
5416                                                 progname, x);
5417                                         ret = -EINVAL;
5418                                         goto err;
5419                                 }
5420                         }
5421
5422                         switch (x) {
5423                         case 'a':
5424                                 xidx = NEWERXY_ATIME;
5425                                 break;
5426                         case 'm':
5427                                 xidx = NEWERXY_MTIME;
5428                                 break;
5429                         case 'c':
5430                                 xidx = NEWERXY_CTIME;
5431                                 break;
5432                         case 'b':
5433                         case 'B':
5434                                 xidx = NEWERXY_BTIME;
5435                                 break;
5436                         default:
5437                                 fprintf(stderr,
5438                                         "%s: invalid X argument: '%c'\n",
5439                                         progname, x);
5440                                 ret = -EINVAL;
5441                                 goto err;
5442                         }
5443
5444                         negidx = !!neg_opt;
5445                         newery = &param.fp_newery[xidx][negidx];
5446
5447                         if (*newery == 0) {
5448                                 *newery = ref;
5449                         } else {
5450                                 if (negidx)
5451                                         *newery = *newery > ref ? ref : *newery;
5452                                 else
5453                                         *newery = *newery > ref ? *newery : ref;
5454                         }
5455                         param.fp_newerxy = 1;
5456                         break;
5457                 }
5458                 case 'g':
5459                 case 'G':
5460                         rc = name2gid(&param.fp_gid, optarg);
5461                         if (rc) {
5462                                 if (str2quotaid(&param.fp_gid, optarg)) {
5463                                         fprintf(stderr,
5464                                                 "Group/GID: %s cannot be found.\n",
5465                                                 optarg);
5466                                         ret = -1;
5467                                         goto err;
5468                                 }
5469                         }
5470                         param.fp_exclude_gid = !!neg_opt;
5471                         param.fp_check_gid = 1;
5472                         break;
5473                 case 'H':
5474                         rc = mdthash_input(optarg, &param.fp_hash_inflags,
5475                                            &param.fp_hash_exflags,
5476                                            &param.fp_hash_type);
5477                         if (rc) {
5478                                 ret = -1;
5479                                 goto err;
5480                         }
5481                         if (param.fp_hash_inflags || param.fp_hash_exflags)
5482                                 param.fp_check_hash_flag = 1;
5483                         param.fp_exclude_hash_type = !!neg_opt;
5484                         break;
5485                 case 'l':
5486                         param.fp_lazy = 1;
5487                         break;
5488                 case 'L':
5489                         ret = name2layout(&param.fp_layout, optarg);
5490                         if (ret)
5491                                 goto err;
5492                         param.fp_exclude_layout = !!neg_opt;
5493                         param.fp_check_layout = 1;
5494                         break;
5495                 case 'u':
5496                 case 'U':
5497                         rc = name2uid(&param.fp_uid, optarg);
5498                         if (rc) {
5499                                 if (str2quotaid(&param.fp_uid, optarg)) {
5500                                         fprintf(stderr,
5501                                                 "User/UID: %s cannot be found.\n",
5502                                                 optarg);
5503                                         ret = -1;
5504                                         goto err;
5505                                 }
5506                         }
5507                         param.fp_exclude_uid = !!neg_opt;
5508                         param.fp_check_uid = 1;
5509                         break;
5510                 case 'n':
5511                         param.fp_pattern = (char *)optarg;
5512                         param.fp_exclude_pattern = !!neg_opt;
5513                         break;
5514                 case 'N':
5515                         if (optarg[0] == '+') {
5516                                 param.fp_mirror_count_sign = -1;
5517                                 optarg++;
5518                         } else if (optarg[0] == '-') {
5519                                 param.fp_mirror_count_sign =  1;
5520                                 optarg++;
5521                         }
5522
5523                         errno = 0;
5524                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
5525                         if (errno != 0 || *endptr != '\0' ||
5526                             param.fp_mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
5527                                 fprintf(stderr,
5528                                         "error: bad mirror count '%s'\n",
5529                                         optarg);
5530                                 goto err;
5531                         }
5532                         param.fp_check_mirror_count = 1;
5533                         param.fp_exclude_mirror_count = !!neg_opt;
5534                         break;
5535                 case 'm':
5536                 case 'i':
5537                 case 'O': {
5538                         char *buf, *token, *next, *p;
5539                         int len = 1;
5540                         void *tmp;
5541
5542                         buf = strdup(optarg);
5543                         if (!buf) {
5544                                 ret = -ENOMEM;
5545                                 goto err;
5546                         }
5547
5548                         param.fp_exclude_obd = !!neg_opt;
5549
5550                         token = buf;
5551                         while (token && *token) {
5552                                 token = strchr(token, ',');
5553                                 if (token) {
5554                                         len++;
5555                                         token++;
5556                                 }
5557                         }
5558                         if (c == 'm') {
5559                                 param.fp_exclude_mdt = !!neg_opt;
5560                                 param.fp_num_alloc_mdts += len;
5561                                 tmp = realloc(param.fp_mdt_uuid,
5562                                               param.fp_num_alloc_mdts *
5563                                               sizeof(*param.fp_mdt_uuid));
5564                                 if (!tmp) {
5565                                         ret = -ENOMEM;
5566                                         goto err_free;
5567                                 }
5568
5569                                 param.fp_mdt_uuid = tmp;
5570                         } else {
5571                                 param.fp_exclude_obd = !!neg_opt;
5572                                 param.fp_num_alloc_obds += len;
5573                                 tmp = realloc(param.fp_obd_uuid,
5574                                               param.fp_num_alloc_obds *
5575                                               sizeof(*param.fp_obd_uuid));
5576                                 if (!tmp) {
5577                                         ret = -ENOMEM;
5578                                         goto err_free;
5579                                 }
5580
5581                                 param.fp_obd_uuid = tmp;
5582                         }
5583                         for (token = buf; token && *token; token = next) {
5584                                 struct obd_uuid *puuid;
5585
5586                                 if (c == 'm') {
5587                                         puuid =
5588                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
5589                                 } else {
5590                                         puuid =
5591                                         &param.fp_obd_uuid[param.fp_num_obds++];
5592                                 }
5593                                 p = strchr(token, ',');
5594                                 next = 0;
5595                                 if (p) {
5596                                         *p = 0;
5597                                         next = p+1;
5598                                 }
5599
5600                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
5601                                         ret = -E2BIG;
5602                                         goto err_free;
5603                                 }
5604
5605                                 strncpy(puuid->uuid, token,
5606                                         sizeof(puuid->uuid));
5607                         }
5608 err_free:
5609                         if (buf)
5610                                 free(buf);
5611                         break;
5612                 }
5613 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
5614                 case 'p':
5615 #endif
5616                 case LFS_POOL_OPT:
5617                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
5618                                 fprintf(stderr,
5619                                         "Pool name %s is too long (max %d)\n",
5620                                         optarg, LOV_MAXPOOLNAME);
5621                                 ret = -1;
5622                                 goto err;
5623                         }
5624                         /*
5625                          * We do check for empty pool because empty pool
5626                          * is used to find V1 LOV attributes
5627                          */
5628                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
5629                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
5630                         param.fp_exclude_pool = !!neg_opt;
5631                         param.fp_check_pool = 1;
5632                         break;
5633 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
5634                 case 'p': /* want this for --pool, to match getstripe/find */
5635                         fprintf(stderr,
5636                                 "warning: -p deprecated, use --print0 or -0\n");
5637 #endif
5638                 case '0':
5639                         param.fp_zero_end = 1;
5640                         break;
5641                 case 'P': /* we always print, this option is a no-op */
5642                         break;
5643                 case LFS_PROJID_OPT:
5644                         rc = name2projid(&param.fp_projid, optarg);
5645                         if (rc) {
5646                                 if (str2quotaid(&param.fp_projid, optarg)) {
5647                                         fprintf(stderr,
5648                                                 "Invalid project ID: %s\n",
5649                                                 optarg);
5650                                         ret = -1;
5651                                         goto err;
5652                                 }
5653                         }
5654                         param.fp_exclude_projid = !!neg_opt;
5655                         param.fp_check_projid = 1;
5656                         break;
5657                 case 's':
5658                         if (optarg[0] == '+') {
5659                                 param.fp_size_sign = -1;
5660                                 optarg++;
5661                         } else if (optarg[0] == '-') {
5662                                 param.fp_size_sign =  1;
5663                                 optarg++;
5664                         }
5665
5666                         ret = llapi_parse_size(optarg, &param.fp_size,
5667                                                &param.fp_size_units, 0);
5668                         if (ret) {
5669                                 fprintf(stderr, "error: bad file size '%s'\n",
5670                                         optarg);
5671                                 goto err;
5672                         }
5673                         param.fp_check_size = 1;
5674                         param.fp_exclude_size = !!neg_opt;
5675                         break;
5676                 case 'S':
5677                         if (optarg[0] == '+') {
5678                                 param.fp_stripe_size_sign = -1;
5679                                 optarg++;
5680                         } else if (optarg[0] == '-') {
5681                                 param.fp_stripe_size_sign =  1;
5682                                 optarg++;
5683                         }
5684
5685                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
5686                                                &param.fp_stripe_size_units, 0);
5687                         /* assume units of KB if too small to be valid */
5688                         if (param.fp_stripe_size < 4096)
5689                                 param.fp_stripe_size *= 1024;
5690                         if (ret) {
5691                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
5692                                         optarg);
5693                                 goto err;
5694                         }
5695                         param.fp_check_stripe_size = 1;
5696                         param.fp_exclude_stripe_size = !!neg_opt;
5697                         break;
5698                 case 't':
5699                         param.fp_exclude_type = !!neg_opt;
5700                         switch (optarg[0]) {
5701                         case 'b':
5702                                 param.fp_type = S_IFBLK;
5703                                 break;
5704                         case 'c':
5705                                 param.fp_type = S_IFCHR;
5706                                 break;
5707                         case 'd':
5708                                 param.fp_type = S_IFDIR;
5709                                 break;
5710                         case 'f':
5711                                 param.fp_type = S_IFREG;
5712                                 break;
5713                         case 'l':
5714                                 param.fp_type = S_IFLNK;
5715                                 break;
5716                         case 'p':
5717                                 param.fp_type = S_IFIFO;
5718                                 break;
5719                         case 's':
5720                                 param.fp_type = S_IFSOCK;
5721                                 break;
5722                         default:
5723                                 fprintf(stderr, "%s: bad type '%s'\n",
5724                                         progname, optarg);
5725                                 ret = CMD_HELP;
5726                                 goto err;
5727                         }
5728                         break;
5729                 case LFS_FIND_PERM:
5730                         param.fp_exclude_perm = !!neg_opt;
5731                         param.fp_perm_sign = LFS_FIND_PERM_EXACT;
5732                         if (*optarg == '/') {
5733                                 param.fp_perm_sign = LFS_FIND_PERM_ANY;
5734                                 optarg++;
5735                         } else if (*optarg == '-') {
5736                                 param.fp_perm_sign = LFS_FIND_PERM_ALL;
5737                                 optarg++;
5738                         }
5739
5740                         if (str2mode_t(optarg, &param.fp_perm)) {
5741                                 fprintf(stderr, "error: invalid mode '%s'\n",
5742                                         optarg);
5743                                 ret = -1;
5744                                 goto err;
5745                         }
5746                         break;
5747                 case 'T':
5748                         if (optarg[0] == '+') {
5749                                 param.fp_mdt_count_sign = -1;
5750                                 optarg++;
5751                         } else if (optarg[0] == '-') {
5752                                 param.fp_mdt_count_sign =  1;
5753                                 optarg++;
5754                         }
5755
5756                         errno = 0;
5757                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
5758                         if (errno != 0 || *endptr != '\0' ||
5759                             param.fp_mdt_count >= UINT32_MAX) {
5760                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
5761                                         optarg);
5762                                 ret = -1;
5763                                 goto err;
5764                         }
5765                         param.fp_check_mdt_count = 1;
5766                         param.fp_exclude_mdt_count = !!neg_opt;
5767                         break;
5768                 case 'z':
5769                         if (optarg[0] == '+') {
5770                                 param.fp_ext_size_sign = -1;
5771                                 optarg++;
5772                         } else if (optarg[0] == '-') {
5773                                 param.fp_ext_size_sign =  1;
5774                                 optarg++;
5775                         }
5776
5777                         ret = llapi_parse_size(optarg, &param.fp_ext_size,
5778                                                &param.fp_ext_size_units, 0);
5779                         if (ret) {
5780                                 fprintf(stderr, "error: bad ext-size '%s'\n",
5781                                         optarg);
5782                                 goto err;
5783                         }
5784                         param.fp_ext_size /= SEL_UNIT_SIZE;
5785                         param.fp_ext_size_units /= SEL_UNIT_SIZE;
5786                         param.fp_check_ext_size = 1;
5787                         param.fp_exclude_ext_size = !!neg_opt;
5788                         break;
5789                 default:
5790                         fprintf(stderr, "%s: unrecognized option '%s'\n",
5791                                 progname, argv[optind - 1]);
5792                 case 'h':
5793                         ret = CMD_HELP;
5794                         goto err;
5795                 }
5796         }
5797
5798         if (pathstart == -1) {
5799                 fprintf(stderr, "error: %s: no filename|pathname\n",
5800                         argv[0]);
5801                 ret = CMD_HELP;
5802                 goto err;
5803         } else if (pathend == -1) {
5804                 /* no options */
5805                 pathend = argc;
5806         }
5807
5808         do {
5809                 rc = llapi_find(argv[pathstart], &param);
5810                 if (rc && !ret) {
5811                         ret = rc;
5812                         pathbad = pathstart;
5813                 }
5814         } while (++pathstart < pathend);
5815
5816         if (ret)
5817                 fprintf(stderr, "%s: failed for '%s': %s\n",
5818                         progname, argv[pathbad], strerror(-rc));
5819
5820 err:
5821         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
5822                 free(param.fp_obd_uuid);
5823
5824         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
5825                 free(param.fp_mdt_uuid);
5826
5827         return ret;
5828 }
5829
5830 static int lfs_getstripe_internal(int argc, char **argv,
5831                                   struct find_param *param)
5832 {
5833         struct option long_opts[] = {
5834 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
5835 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
5836 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
5837 /* find { .val = 'B',   .name = "Btime",        .has_arg = required_argument }*/
5838         { .val = LFS_COMP_COUNT_OPT,
5839                         .name = "comp-count",   .has_arg = no_argument },
5840         { .val = LFS_COMP_COUNT_OPT,
5841                 .name = "component-count",      .has_arg = no_argument },
5842         { .val = LFS_COMP_FLAGS_OPT,
5843                         .name = "comp-flags",   .has_arg = optional_argument },
5844         { .val = LFS_COMP_FLAGS_OPT,
5845                 .name = "component-flags",      .has_arg = optional_argument },
5846         { .val = LFS_COMP_START_OPT,
5847                         .name = "comp-start",   .has_arg = optional_argument },
5848         { .val = LFS_COMP_START_OPT,
5849                 .name = "component-start",      .has_arg = optional_argument },
5850         { .val = LFS_MIRROR_INDEX_OPT,
5851                 .name = "mirror-index",         .has_arg = required_argument },
5852         { .val = LFS_MIRROR_ID_OPT,
5853                 .name = "mirror-id",            .has_arg = required_argument },
5854         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
5855         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
5856 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
5857         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
5858         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5859         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
5860         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
5861         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
5862         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
5863 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
5864         { .val = 'h',   .name = "help",         .has_arg = no_argument },
5865 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
5866         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
5867         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
5868         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
5869         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
5870 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
5871         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
5872         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
5873         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5874         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
5875 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
5876 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
5877         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
5878         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5879         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
5880         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
5881 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
5882         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
5883         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5884         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
5885         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
5886         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
5887 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
5888 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
5889 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
5890 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
5891         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5892 /* dirstripe { .val = 'X',.name = "max-inherit",.has_arg = required_argument }*/
5893         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5894         { .val = 'z',   .name = "extension-size", .has_arg = no_argument },
5895         { .val = 'z',   .name = "ext-size",     .has_arg = no_argument },
5896         { .name = NULL } };
5897         int c, rc;
5898         int neg_opt = 0;
5899         int pathstart = -1, pathend = -1;
5900         int isoption;
5901         char *end, *tmp;
5902
5903         while ((c = getopt_long(argc, argv,
5904                         "-cdDE::FghiI::LmMNoO:pqrRsSvyz",
5905                         long_opts, NULL)) != -1) {
5906                 if (neg_opt)
5907                         --neg_opt;
5908
5909                 /* '!' is part of option */
5910                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5911                 if (!isoption && pathend != -1) {
5912                         fprintf(stderr,
5913                                 "error: %s: filename|dirname must either precede options or follow options\n",
5914                                 argv[0]);
5915                         return CMD_HELP;
5916                 }
5917                 if (!isoption && pathstart == -1)
5918                         pathstart = optind - 1;
5919                 if (isoption && pathstart != -1 && pathend == -1)
5920                         pathend = optind - 2;
5921
5922                 switch (c) {
5923                 case 1:
5924                         /* unknown: opt is "!" */
5925                         if (strcmp(optarg, "!") == 0)
5926                                 neg_opt = 2;
5927                         break;
5928                 case 'c':
5929                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5930                                 param->fp_verbose |= VERBOSE_COUNT;
5931                                 param->fp_max_depth = 0;
5932                         }
5933                         break;
5934                 case LFS_COMP_COUNT_OPT:
5935                         param->fp_verbose |= VERBOSE_COMP_COUNT;
5936                         param->fp_max_depth = 0;
5937                         break;
5938                 case LFS_COMP_FLAGS_OPT:
5939                         if (optarg) {
5940                                 rc = comp_str2flags(optarg,
5941                                                     &param->fp_comp_flags,
5942                                                     &param->fp_comp_neg_flags);
5943                                 if (rc != 0) {
5944                                         fprintf(stderr,
5945                                                 "error: %s bad component flags '%s'.\n",
5946                                                 argv[0], optarg);
5947                                         return CMD_HELP;
5948                                 }
5949                                 param->fp_check_comp_flags = 1;
5950                         } else {
5951                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
5952                                 param->fp_max_depth = 0;
5953                         }
5954                         break;
5955                 case LFS_COMP_START_OPT:
5956                         if (optarg) {
5957                                 tmp = optarg;
5958                                 if (tmp[0] == '+') {
5959                                         param->fp_comp_start_sign = -1;
5960                                         tmp++;
5961                                 } else if (tmp[0] == '-') {
5962                                         param->fp_comp_start_sign = 1;
5963                                         tmp++;
5964                                 }
5965                                 rc = llapi_parse_size(tmp,
5966                                                 &param->fp_comp_start,
5967                                                 &param->fp_comp_start_units, 0);
5968                                 if (rc != 0) {
5969                                         fprintf(stderr,
5970                                                 "error: %s bad component start '%s'.\n",
5971                                                 argv[0], tmp);
5972                                         return CMD_HELP;
5973                                 }
5974                                 param->fp_check_comp_start = 1;
5975                         } else {
5976                                 param->fp_verbose |= VERBOSE_COMP_START;
5977                                 param->fp_max_depth = 0;
5978                         }
5979                         break;
5980                 case LFS_MIRROR_INDEX_OPT: {
5981                         unsigned long int mirror_index;
5982
5983                         if (optarg[0] == '+') {
5984                                 param->fp_mirror_index_sign = -1;
5985                                 optarg++;
5986                         } else if (optarg[0] == '-') {
5987                                 param->fp_mirror_index_sign = 1;
5988                                 optarg++;
5989                         }
5990
5991                         errno = 0;
5992                         mirror_index = strtoul(optarg, &end, 0);
5993                         if (errno != 0 || *end != '\0' ||
5994                             mirror_index > UINT16_MAX || (mirror_index == 0 &&
5995                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
5996                                 fprintf(stderr,
5997                                         "%s %s: invalid mirror index '%s'\n",
5998                                         progname, argv[0], optarg);
5999                                 return CMD_HELP;
6000                         }
6001
6002                         param->fp_mirror_index = (__u16)mirror_index;
6003
6004                         if (param->fp_mirror_id != 0) {
6005                                 fprintf(stderr,
6006                                         "%s %s: can't specify both mirror index and mirror ID\n",
6007                                         progname, argv[0]);
6008                                 return CMD_HELP;
6009                         }
6010                         param->fp_check_mirror_index = 1;
6011                         param->fp_exclude_mirror_index = !!neg_opt;
6012                         break;
6013                 }
6014                 case LFS_MIRROR_ID_OPT: {
6015                         unsigned long int mirror_id;
6016
6017                         if (optarg[0] == '+') {
6018                                 param->fp_mirror_id_sign = -1;
6019                                 optarg++;
6020                         } else if (optarg[0] == '-') {
6021                                 param->fp_mirror_id_sign = 1;
6022                                 optarg++;
6023                         }
6024
6025                         errno = 0;
6026                         mirror_id = strtoul(optarg, &end, 0);
6027                         if (errno != 0 || *end != '\0' ||
6028                             mirror_id > UINT16_MAX || (mirror_id == 0 &&
6029                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
6030                                 fprintf(stderr,
6031                                         "%s %s: invalid mirror ID '%s'\n",
6032                                         progname, argv[0], optarg);
6033                                 return CMD_HELP;
6034                         }
6035
6036                         param->fp_mirror_id = (__u16)mirror_id;
6037
6038                         if (param->fp_mirror_index != 0) {
6039                                 fprintf(stderr,
6040                                         "%s %s: can't specify both mirror index and mirror ID\n",
6041                                         progname, argv[0]);
6042                                 return CMD_HELP;
6043                         }
6044                         param->fp_check_mirror_id = 1;
6045                         param->fp_exclude_mirror_id = !!neg_opt;
6046                         break;
6047                 }
6048                 case 'd':
6049                         param->fp_max_depth = 0;
6050                         break;
6051                 case 'D':
6052                         param->fp_get_default_lmv = 1;
6053                         break;
6054                 case 'E':
6055                         if (optarg) {
6056                                 tmp = optarg;
6057                                 if (tmp[0] == '+') {
6058                                         param->fp_comp_end_sign = -1;
6059                                         tmp++;
6060                                 } else if (tmp[0] == '-') {
6061                                         param->fp_comp_end_sign = 1;
6062                                         tmp++;
6063                                 }
6064
6065                                 if (arg_is_eof(tmp)) {
6066                                         param->fp_comp_end = LUSTRE_EOF;
6067                                         param->fp_comp_end_units = 1;
6068                                         rc = 0;
6069                                 } else {
6070                                         rc = llapi_parse_size(tmp,
6071                                                 &param->fp_comp_end,
6072                                                 &param->fp_comp_end_units, 0);
6073                                         /* assume units of KB if too small */
6074                                         if (param->fp_comp_end < 4096)
6075                                                 param->fp_comp_end *= 1024;
6076                                 }
6077                                 if (rc != 0) {
6078                                         fprintf(stderr,
6079                                                 "error: %s bad component end '%s'.\n",
6080                                                 argv[0], tmp);
6081                                         return CMD_HELP;
6082                                 }
6083                                 param->fp_check_comp_end = 1;
6084                         } else {
6085                                 param->fp_verbose |= VERBOSE_COMP_END;
6086                                 param->fp_max_depth = 0;
6087                         }
6088                         break;
6089                 case 'F':
6090                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6091                                 param->fp_verbose |= VERBOSE_DFID;
6092                                 param->fp_max_depth = 0;
6093                         }
6094                         break;
6095                 case 'g':
6096                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6097                                 param->fp_verbose |= VERBOSE_GENERATION;
6098                                 param->fp_max_depth = 0;
6099                         }
6100                         break;
6101                 case 'i':
6102                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6103                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
6104                                 param->fp_max_depth = 0;
6105                         }
6106                         break;
6107                 case 'I':
6108                         if (optarg) {
6109                                 param->fp_comp_id = strtoul(optarg, &end, 0);
6110                                 if (*end != '\0' || param->fp_comp_id == 0 ||
6111                                     param->fp_comp_id > LCME_ID_MAX) {
6112                                         fprintf(stderr,
6113                                                 "error: %s bad component id '%s'\n",
6114                                                 argv[0], optarg);
6115                                         return CMD_HELP;
6116                                 }
6117                                 param->fp_check_comp_id = 1;
6118                         } else {
6119                                 param->fp_max_depth = 0;
6120                                 param->fp_verbose |= VERBOSE_COMP_ID;
6121                         }
6122                         break;
6123                 case 'L':
6124                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6125                                 param->fp_verbose |= VERBOSE_PATTERN;
6126                                 param->fp_max_depth = 0;
6127                         }
6128                         break;
6129 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6130                 case 'M':
6131                         fprintf(stderr,
6132                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
6133 #endif
6134                 case 'm':
6135                         if (!(param->fp_verbose & VERBOSE_DETAIL))
6136                                 param->fp_max_depth = 0;
6137                         param->fp_verbose |= VERBOSE_MDTINDEX;
6138                         break;
6139                 case 'N':
6140                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6141                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
6142                                 param->fp_max_depth = 0;
6143                         }
6144                         break;
6145                 case 'O':
6146                         if (param->fp_obd_uuid) {
6147                                 fprintf(stderr,
6148                                         "error: %s: only one obduuid allowed",
6149                                         argv[0]);
6150                                 return CMD_HELP;
6151                         }
6152                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
6153                         break;
6154                 case 'p':
6155                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6156                                 param->fp_verbose |= VERBOSE_POOL;
6157                                 param->fp_max_depth = 0;
6158                         }
6159                         break;
6160                 case 'q':
6161                         param->fp_quiet++;
6162                         break;
6163                 case 'r':
6164                         param->fp_recursive = 1;
6165                         break;
6166                 case 'R':
6167                         param->fp_raw = 1;
6168                         break;
6169                 case 'S':
6170                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6171                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
6172                                 param->fp_max_depth = 0;
6173                         }
6174                         break;
6175                 case 'v':
6176                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
6177                         break;
6178                 case 'y':
6179                         param->fp_yaml = 1;
6180                         break;
6181                 case 'z':
6182                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6183                                 param->fp_verbose |= VERBOSE_EXT_SIZE;
6184                                 param->fp_max_depth = 0;
6185                         }
6186                         break;
6187                 default:
6188                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6189                                 progname, argv[optind - 1]);
6190                 case 'h':
6191                         return CMD_HELP;
6192                 }
6193         }
6194
6195         if (pathstart == -1) {
6196                 fprintf(stderr, "error: %s: no filename|pathname\n",
6197                                 argv[0]);
6198                 return CMD_HELP;
6199         } else if (pathend == -1) {
6200                 /* no options */
6201                 pathend = argc;
6202         }
6203
6204         if (pathend > argc)
6205                 return CMD_HELP;
6206
6207         if (param->fp_recursive)
6208                 param->fp_max_depth = -1;
6209         else if (param->fp_verbose & VERBOSE_DETAIL)
6210                 param->fp_max_depth = 1;
6211
6212         if (!param->fp_verbose)
6213                 param->fp_verbose = VERBOSE_DEFAULT;
6214         if (param->fp_quiet)
6215                 param->fp_verbose = VERBOSE_OBJID;
6216
6217         do {
6218                 rc = llapi_getstripe(argv[pathstart], param);
6219         } while (++pathstart < pathend && !rc);
6220
6221         if (rc)
6222                 fprintf(stderr, "error: %s failed for %s.\n",
6223                         argv[0], argv[optind - 1]);
6224         return rc;
6225 }
6226
6227 static int lfs_tgts(int argc, char **argv)
6228 {
6229         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
6230         struct find_param param;
6231         int index = 0, rc = 0;
6232
6233         if (argc > 2)
6234                 return CMD_HELP;
6235
6236         if (argc == 2 && !realpath(argv[1], path)) {
6237                 rc = -errno;
6238                 fprintf(stderr, "error: invalid path '%s': %s\n",
6239                         argv[1], strerror(-rc));
6240                 return rc;
6241         }
6242
6243         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
6244                 /* Check if we have a mount point */
6245                 if (mntdir[0] == '\0')
6246                         continue;
6247
6248                 memset(&param, 0, sizeof(param));
6249                 if (!strcmp(argv[0], "mdts"))
6250                         param.fp_get_lmv = 1;
6251
6252                 rc = llapi_ostlist(mntdir, &param);
6253                 if (rc) {
6254                         fprintf(stderr, "error: %s: failed on %s\n",
6255                                 argv[0], mntdir);
6256                 }
6257                 if (path[0] != '\0')
6258                         break;
6259                 memset(mntdir, 0, PATH_MAX);
6260         }
6261
6262         return rc;
6263 }
6264
6265 static int lfs_getstripe(int argc, char **argv)
6266 {
6267         struct find_param param = { 0 };
6268
6269         param.fp_max_depth = 1;
6270         return lfs_getstripe_internal(argc, argv, &param);
6271 }
6272
6273 /* functions */
6274 static int lfs_getdirstripe(int argc, char **argv)
6275 {
6276         struct find_param param = { 0 };
6277         struct option long_opts[] = {
6278         { .val = 'c',   .name = "mdt-count",     .has_arg = no_argument },
6279         { .val = 'D',   .name = "default",       .has_arg = no_argument },
6280         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6281         { .val = 'H',   .name = "mdt-hash",      .has_arg = no_argument },
6282         { .val = 'i',   .name = "mdt-index",     .has_arg = no_argument },
6283         { .val = 'm',   .name = "mdt-index",     .has_arg = no_argument },
6284         { .val = 'O',   .name = "obd",           .has_arg = required_argument },
6285         { .val = 'r',   .name = "recursive",     .has_arg = no_argument },
6286         { .val = 'T',   .name = "mdt-count",     .has_arg = no_argument },
6287         { .val = 'v',   .name = "verbose",       .has_arg = no_argument },
6288         { .val = 'X',   .name = "max-inherit",   .has_arg = no_argument },
6289         { .val = 'y',   .name = "yaml",          .has_arg = no_argument },
6290         { .val = LFS_INHERIT_RR_OPT,
6291                         .name = "max-inherit-rr", .has_arg = no_argument },
6292         { .name = NULL } };
6293         int c, rc;
6294
6295         param.fp_get_lmv = 1;
6296
6297         while ((c = getopt_long(argc, argv,
6298                                 "cDhHimO:rtTvXy", long_opts, NULL)) != -1) {
6299                 switch (c) {
6300                 case 'c':
6301                 case 'T':
6302                         param.fp_verbose |= VERBOSE_COUNT;
6303                         break;
6304                 case 'D':
6305                         param.fp_get_default_lmv = 1;
6306                         break;
6307 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6308                 case 't':
6309                         fprintf(stderr,
6310                                 "warning: '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6311                         /* fallthrough */
6312 #endif
6313                 case 'H':
6314                         param.fp_verbose |= VERBOSE_HASH_TYPE;
6315                         break;
6316                 case 'i': /* fallthrough */
6317                 case 'm':
6318                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
6319                         break;
6320                 case 'O':
6321                         if (param.fp_obd_uuid) {
6322                                 fprintf(stderr,
6323                                         "%s: only one obduuid allowed",
6324                                         progname);
6325                                 return CMD_HELP;
6326                         }
6327                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
6328                         break;
6329                 case 'r':
6330                         param.fp_recursive = 1;
6331                         break;
6332                 case 'v':
6333                         param.fp_verbose |= VERBOSE_DETAIL;
6334                         break;
6335                 case 'X':
6336                         param.fp_verbose |= VERBOSE_INHERIT;
6337                         break;
6338                 case LFS_INHERIT_RR_OPT:
6339                         param.fp_verbose |= VERBOSE_INHERIT_RR;
6340                         break;
6341                 case 'y':
6342                         param.fp_yaml = 1;
6343                         break;
6344                 default:
6345                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6346                                 progname, argv[optind - 1]);
6347                         /* fallthrough */
6348                 case 'h':
6349                         return CMD_HELP;
6350                 }
6351         }
6352
6353         if (optind >= argc)
6354                 return CMD_HELP;
6355
6356         if (param.fp_recursive)
6357                 param.fp_max_depth = -1;
6358
6359         if (!param.fp_verbose)
6360                 param.fp_verbose = VERBOSE_DEFAULT;
6361
6362         do {
6363                 rc = llapi_getstripe(argv[optind], &param);
6364         } while (++optind < argc && !rc);
6365
6366         if (rc)
6367                 fprintf(stderr, "error: %s failed for %s.\n",
6368                         argv[0], argv[optind - 1]);
6369         return rc;
6370 }
6371
6372 enum mntdf_flags {
6373         MNTDF_INODES    = 0x0001,
6374         MNTDF_COOKED    = 0x0002,
6375         MNTDF_LAZY      = 0x0004,
6376         MNTDF_VERBOSE   = 0x0008,
6377         MNTDF_SHOW      = 0x0010,
6378         MNTDF_DECIMAL   = 0x0020,
6379 };
6380
6381 #define COOK(value, base)                                       \
6382 ({                                                              \
6383         int radix = 0;                                          \
6384         while (value > base) {                                  \
6385                 value /= base;                                  \
6386                 radix++;                                        \
6387         }                                                       \
6388         radix;                                                  \
6389 })
6390 #define UUF     "%-20s"
6391 #define CSF     "%11s"
6392 #define CDF     "%11llu"
6393 #define HDF     "%8.1f%c"
6394 #define RSF     "%4s"
6395 #define RDF     "%3d%%"
6396
6397 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
6398 {
6399         double avail, used, ratio = 0;
6400
6401         if (inodes) {
6402                 avail = st->os_ffree;
6403                 used = st->os_files - st->os_ffree;
6404         } else {
6405                 avail = st->os_bavail;
6406                 used = st->os_blocks - st->os_bfree;
6407         }
6408         if (avail + used > 0)
6409                 ratio = used / (used + avail) * 100;
6410
6411         /* Round up to match df(1) usage percentage */
6412         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
6413 }
6414
6415 /*
6416  * This is to identify various problem states for "lfs df" if .osn_err = true,
6417  * so only show flags reflecting those states by default. Informational states
6418  * are only shown with "-v" and use lower-case names to distinguish them.
6419  * UNUSED[12] were for "EROFS = 30" until 1.6 but are now available for use.
6420  */
6421 static struct obd_statfs_state_names {
6422         enum obd_statfs_state   osn_state;
6423         const char              osn_name;
6424         bool                    osn_err;
6425 } oss_names[] = {
6426         { .osn_state = OS_STATFS_DEGRADED,   .osn_name = 'D', .osn_err = true },
6427         { .osn_state = OS_STATFS_READONLY,   .osn_name = 'R', .osn_err = true },
6428         { .osn_state = OS_STATFS_NOPRECREATE,.osn_name = 'N', .osn_err = true },
6429         { .osn_state = OS_STATFS_UNUSED1,    .osn_name = '?', .osn_err = true },
6430         { .osn_state = OS_STATFS_UNUSED2,    .osn_name = '?', .osn_err = true },
6431         { .osn_state = OS_STATFS_ENOSPC,     .osn_name = 'S', .osn_err = true },
6432         { .osn_state = OS_STATFS_ENOINO,     .osn_name = 'I', .osn_err = true },
6433         { .osn_state = OS_STATFS_SUM,        .osn_name = 'a', /* aggregate */ },
6434         { .osn_state = OS_STATFS_NONROT,     .osn_name = 'f', /* flash */     },
6435 };
6436
6437 static int showdf(char *mntdir, struct obd_statfs *stat,
6438                   char *uuid, enum mntdf_flags flags,
6439                   char *type, int index, int rc)
6440 {
6441         long long avail, used, total;
6442         int ratio = 0;
6443         char *suffix = flags & MNTDF_DECIMAL ? "kMGTPEZY" : "KMGTPEZY";
6444         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
6445         char tbuf[3 * sizeof(__u64)];
6446         char ubuf[3 * sizeof(__u64)];
6447         char abuf[3 * sizeof(__u64)];
6448         char rbuf[3 * sizeof(__u64)];
6449
6450         if (!uuid || !stat)
6451                 return -EINVAL;
6452
6453         switch (rc) {
6454         case 0:
6455                 if (flags & MNTDF_INODES) {
6456                         avail = stat->os_ffree;
6457                         used = stat->os_files - stat->os_ffree;
6458                         total = stat->os_files;
6459                 } else {
6460                         int shift = flags & MNTDF_COOKED ? 0 : 10;
6461
6462                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
6463                         used  = ((stat->os_blocks - stat->os_bfree) *
6464                                  stat->os_bsize) >> shift;
6465                         total = (stat->os_blocks * stat->os_bsize) >> shift;
6466                 }
6467
6468                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
6469
6470                 if (flags & MNTDF_COOKED) {
6471                         int base = flags & MNTDF_DECIMAL ? 1000 : 1024;
6472                         double cook_val;
6473                         int i;
6474
6475                         cook_val = (double)total;
6476                         i = COOK(cook_val, base);
6477                         if (i > 0)
6478                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
6479                                          suffix[i - 1]);
6480                         else
6481                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
6482
6483                         cook_val = (double)used;
6484                         i = COOK(cook_val, base);
6485                         if (i > 0)
6486                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
6487                                          suffix[i - 1]);
6488                         else
6489                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
6490
6491                         cook_val = (double)avail;
6492                         i = COOK(cook_val, base);
6493                         if (i > 0)
6494                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
6495                                          suffix[i - 1]);
6496                         else
6497                                 snprintf(abuf, sizeof(abuf), CDF, avail);
6498                 } else {
6499                         snprintf(tbuf, sizeof(tbuf), CDF, total);
6500                         snprintf(ubuf, sizeof(tbuf), CDF, used);
6501                         snprintf(abuf, sizeof(tbuf), CDF, avail);
6502                 }
6503
6504                 sprintf(rbuf, RDF, ratio);
6505                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
6506                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
6507                 if (type)
6508                         printf("[%s:%d]", type, index);
6509
6510                 if (stat->os_state) {
6511                         uint32_t i;
6512
6513                         printf(" ");
6514                         for (i = 0; i < ARRAY_SIZE(oss_names); i++) {
6515                                 if (oss_names[i].osn_state & stat->os_state &&
6516                                     (oss_names[i].osn_err ||
6517                                      flags & MNTDF_VERBOSE))
6518                                         printf("%c", oss_names[i].osn_name);
6519                         }
6520                 }
6521
6522                 printf("\n");
6523                 break;
6524         case -ENODATA:
6525                 printf(UUF": inactive device\n", uuid);
6526                 break;
6527         default:
6528                 printf(UUF": %s\n", uuid, strerror(-rc));
6529                 break;
6530         }
6531
6532         return 0;
6533 }
6534
6535 struct ll_stat_type {
6536         int   st_op;
6537         char *st_name;
6538 };
6539
6540 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
6541
6542 struct ll_statfs_data {
6543         int                     sd_index;
6544         struct obd_statfs       sd_st;
6545 };
6546
6547 struct ll_statfs_buf {
6548         int                     sb_count;
6549         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
6550 };
6551
6552 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
6553                  int ops, struct ll_statfs_buf *lsb)
6554 {
6555         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
6556         struct obd_uuid uuid_buf;
6557         char *poolname = NULL;
6558         struct ll_stat_type types[] = {
6559                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
6560                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
6561                 { .st_name = NULL } };
6562         struct ll_stat_type *tp;
6563         __u64 ost_files = 0;
6564         __u64 ost_ffree = 0;
6565         __u32 index;
6566         __u32 type;
6567         int fd;
6568         int rc = 0;
6569         int rc2;
6570
6571         if (pool) {
6572                 poolname = strchr(pool, '.');
6573                 if (poolname) {
6574                         if (strncmp(fsname, pool, strlen(fsname))) {
6575                                 fprintf(stderr, "filesystem name incorrect\n");
6576                                 return -ENODEV;
6577                         }
6578                         poolname++;
6579                 } else
6580                         poolname = pool;
6581         }
6582
6583         fd = open(mntdir, O_RDONLY);
6584         if (fd < 0) {
6585                 rc = -errno;
6586                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
6587                         strerror(errno));
6588                 return rc;
6589         }
6590
6591         if (flags & MNTDF_SHOW) {
6592                 if (flags & MNTDF_INODES)
6593                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6594                                "UUID", "Inodes", "IUsed", "IFree",
6595                                "IUse%", "Mounted on");
6596                 else
6597                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6598                                "UUID",
6599                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
6600                                "Used", "Available", "Use%", "Mounted on");
6601         }
6602
6603         for (tp = types; tp->st_name != NULL; tp++) {
6604                 bool have_ost = false;
6605
6606                 if (!(tp->st_op & ops))
6607                         continue;
6608
6609                 for (index = 0; ; index++) {
6610                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
6611                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
6612                         type = flags & MNTDF_LAZY ?
6613                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
6614                         rc2 = llapi_obd_fstatfs(fd, type, index,
6615                                                &stat_buf, &uuid_buf);
6616                         if (rc2 == -ENODEV)
6617                                 break;
6618                         if (rc2 == -EAGAIN)
6619                                 continue;
6620                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
6621                                 if (!(flags & MNTDF_VERBOSE))
6622                                         continue;
6623                         } else if (rc2 < 0 && rc == 0) {
6624                                 rc = rc2;
6625                         }
6626
6627                         /*
6628                          * If we have OSTs then don't report MDT block counts.
6629                          * For MDT-only filesystems the expectation is that all
6630                          * layouts have a DoM component.  For filesystems with
6631                          * OSTs, files are not necessarily going to store data
6632                          * on MDTs, and MDT space is limited to a fraction of
6633                          * OST space, so don't include it in the summary.
6634                          */
6635                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
6636                                 have_ost = true;
6637                                 sum.os_blocks = 0;
6638                                 sum.os_bfree = 0;
6639                                 sum.os_bavail = 0;
6640                         }
6641
6642                         if (poolname && tp->st_op == LL_STATFS_LOV &&
6643                             llapi_search_ost(fsname, poolname,
6644                                              obd_uuid2str(&uuid_buf)) != 1)
6645                                 continue;
6646
6647                         /*
6648                          * the llapi_obd_fstatfs() call may have returned with
6649                          * an error, but if it filled in uuid_buf we will at
6650                          * lease use that to print out a message for that OBD.
6651                          * If we didn't get anything in the uuid_buf, then fill
6652                          * it in so that we can print an error message.
6653                          */
6654                         if (uuid_buf.uuid[0] == '\0')
6655                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
6656                                          "%s%04x", tp->st_name, index);
6657                         if (!rc && lsb) {
6658                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
6659                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
6660                                 lsb->sb_count++;
6661                         }
6662                         if (flags & MNTDF_SHOW)
6663                                 showdf(mntdir, &stat_buf,
6664                                        obd_uuid2str(&uuid_buf), flags,
6665                                        tp->st_name, index, rc2);
6666
6667                         if (rc2)
6668                                 continue;
6669
6670                         if (tp->st_op == LL_STATFS_LMV) {
6671                                 sum.os_ffree += stat_buf.os_ffree;
6672                                 sum.os_files += stat_buf.os_files;
6673                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
6674                                 ost_files += stat_buf.os_files;
6675                                 ost_ffree += stat_buf.os_ffree;
6676                         }
6677                         sum.os_blocks += stat_buf.os_blocks *
6678                                          stat_buf.os_bsize;
6679                         sum.os_bfree  += stat_buf.os_bfree *
6680                                          stat_buf.os_bsize;
6681                         sum.os_bavail += stat_buf.os_bavail *
6682                                          stat_buf.os_bsize;
6683                 }
6684         }
6685
6686         close(fd);
6687
6688         /*
6689          * If we have _some_ OSTs, but don't have as many free objects on the
6690          * OST as inodes on the MDTs, reduce the reported number of inodes
6691          * to compensate, so that the "inodes in use" number is correct.
6692          * This should be kept in sync with ll_statfs_internal().
6693          */
6694         if (ost_files && ost_ffree < sum.os_ffree) {
6695                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
6696                 sum.os_ffree = ost_ffree;
6697         }
6698         if (flags & MNTDF_SHOW) {
6699                 printf("\n");
6700                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
6701                 printf("\n");
6702         }
6703
6704         return rc;
6705 }
6706
6707 enum {
6708         LAYOUT_INHERIT_UNSET    = -2,
6709 };
6710
6711 /* functions */
6712 static int lfs_setdirstripe(int argc, char **argv)
6713 {
6714         char *dname;
6715         struct lfs_setstripe_args lsa = { 0 };
6716         struct llapi_stripe_param *param = NULL;
6717         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
6718         char *end;
6719         int c;
6720         char *mode_opt = NULL;
6721         bool default_stripe = false;
6722         bool delete = false;
6723         bool foreign_mode = false;
6724         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
6725         mode_t previous_mode = 0;
6726         char *xattr = NULL;
6727         __u32 type = LU_FOREIGN_TYPE_SYMLINK, flags = 0;
6728         int max_inherit = LAYOUT_INHERIT_UNSET;
6729         int max_inherit_rr = LAYOUT_INHERIT_UNSET;
6730         struct option long_opts[] = {
6731         { .val = 'c',   .name = "count",        .has_arg = required_argument },
6732         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
6733         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
6734         { .val = 'D',   .name = "default",      .has_arg = no_argument },
6735         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
6736         { .val = LFS_LAYOUT_FLAGS_OPT,
6737                         .name = "flags",        .has_arg = required_argument },
6738         { .val = LFS_LAYOUT_FOREIGN_OPT,
6739                         .name = "foreign",      .has_arg = optional_argument},
6740         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6741         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
6742 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
6743         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
6744         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
6745 #else
6746 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
6747         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6748         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6749 #endif
6750 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6751         { .val = 'i',   .name = "index",        .has_arg = required_argument },
6752 #endif
6753         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
6754 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6755         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
6756 #endif
6757         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
6758         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
6759         { .val = 'X',   .name = "max-inherit",  .has_arg = required_argument },
6760         { .val = LFS_INHERIT_RR_OPT,
6761                         .name = "max-inherit-rr", .has_arg = required_argument},
6762 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
6763         { .name = NULL } };
6764         int result = 0;
6765
6766         setstripe_args_init(&lsa);
6767
6768         while ((c = getopt_long(argc, argv, "c:dDi:hH:m:o:t:T:x:X:",
6769                                 long_opts, NULL)) >= 0) {
6770                 switch (c) {
6771                 case 0:
6772                         /* Long options. */
6773                         break;
6774                 case 'c':
6775                 case 'T':
6776                         errno = 0;
6777                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
6778                         if (errno != 0 || *end != '\0' ||
6779                             lsa.lsa_stripe_count < -1 ||
6780                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
6781                                 fprintf(stderr,
6782                                         "%s: invalid stripe count '%s'\n",
6783                                         progname, optarg);
6784                                 return CMD_HELP;
6785                         }
6786                         break;
6787                 case 'd':
6788                         delete = true;
6789                         default_stripe = true;
6790                         break;
6791                 case 'D':
6792                         default_stripe = true;
6793                         break;
6794                 case LFS_LAYOUT_FOREIGN_OPT:
6795                         if (optarg) {
6796                                 /* check pure numeric */
6797                                 type = strtoul(optarg, &end, 0);
6798                                 if (*end) {
6799                                         /* check name */
6800                                         type = check_foreign_type_name(optarg);
6801                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
6802                                                 fprintf(stderr,
6803                                                         "%s %s: unknown foreign type '%s'\n",
6804                                                         progname, argv[0],
6805                                                         optarg);
6806                                                 return CMD_HELP;
6807                                         }
6808                                 } else if (type >= UINT32_MAX) {
6809                                         fprintf(stderr,
6810                                                 "%s %s: invalid foreign type '%s'\n",
6811                                                 progname, argv[0], optarg);
6812                                         return CMD_HELP;
6813                                 }
6814                         }
6815                         foreign_mode = true;
6816                         break;
6817                 case LFS_LAYOUT_FLAGS_OPT:
6818                         errno = 0;
6819                         flags = strtoul(optarg, &end, 16);
6820                         if (errno != 0 || *end != '\0' ||
6821                             flags >= UINT32_MAX) {
6822                                 fprintf(stderr,
6823                                         "%s %s: invalid hex flags '%s'\n",
6824                                         progname, argv[0], optarg);
6825                                 return CMD_HELP;
6826                         }
6827                         if (!foreign_mode) {
6828                                 fprintf(stderr,
6829                                         "%s %s: hex flags must be specified with --foreign option\n",
6830                                         progname, argv[0]);
6831                                 return CMD_HELP;
6832                         }
6833                         break;
6834 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6835                 case 't':
6836                         fprintf(stderr,
6837                                 "warning: '--hash-type' and '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6838                         /* fallthrough */
6839 #endif
6840                 case 'H':
6841                         lsa.lsa_pattern = check_hashtype(optarg);
6842                         if (lsa.lsa_pattern == 0) {
6843                                 fprintf(stderr,
6844                                         "%s %s: bad stripe hash type '%s'\n",
6845                                         progname, argv[0], optarg);
6846                                 return CMD_HELP;
6847                         }
6848                         break;
6849                 case 'i':
6850 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
6851                 case 'm':
6852 #endif
6853 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6854                         if (strcmp(argv[optind - 1], "--index") == 0)
6855                                 fprintf(stderr,
6856                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
6857                                         progname, argv[0]);
6858 #endif
6859                         lsa.lsa_nr_tgts = parse_targets(mdts,
6860                                                 sizeof(mdts) / sizeof(__u32),
6861                                                 lsa.lsa_nr_tgts, optarg, NULL);
6862                         if (lsa.lsa_nr_tgts < 0) {
6863                                 fprintf(stderr,
6864                                         "%s %s: invalid MDT target(s) '%s'\n",
6865                                         progname, argv[0], optarg);
6866                                 return CMD_HELP;
6867                         }
6868
6869                         lsa.lsa_tgts = mdts;
6870                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6871                                 lsa.lsa_stripe_off = mdts[0];
6872                         break;
6873 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
6874                 case 'm':
6875                         fprintf(stderr,
6876                                 "warning: '-m' is deprecated, use '--mode' or '-o' instead\n");
6877 #endif
6878                 case 'o':
6879                         mode_opt = optarg;
6880                         break;
6881                 case 'x':
6882                         xattr = optarg;
6883                         break;
6884                 case 'X':
6885                         if (!default_stripe) {
6886                                 fprintf(stderr,
6887                                         "%s %s: '--max-inherit' must be specified with '-D'\n",
6888                                         progname, argv[0]);
6889                                 return CMD_HELP;
6890                         }
6891                         errno = 0;
6892                         max_inherit = strtol(optarg, &end, 10);
6893                         if (errno != 0 || *end != '\0' || max_inherit < -2) {
6894                                 fprintf(stderr,
6895                                         "%s %s: invalid max-inherit '%s'\n",
6896                                         progname, argv[0], optarg);
6897                                 return CMD_HELP;
6898                         }
6899                         if (max_inherit == 0) {
6900                                 max_inherit = LMV_INHERIT_NONE;
6901                         } else if (max_inherit == -1) {
6902                                 max_inherit = LMV_INHERIT_UNLIMITED;
6903                         } else if (max_inherit > LMV_INHERIT_MAX) {
6904                                 fprintf(stderr,
6905                                         "%s %s: max-inherit %d exceeds maximum %u\n",
6906                                         progname, argv[0], max_inherit,
6907                                         LMV_INHERIT_MAX);
6908                                 return CMD_HELP;
6909                         }
6910                         break;
6911                 case LFS_INHERIT_RR_OPT:
6912                         if (!default_stripe) {
6913                                 fprintf(stderr,
6914                                         "%s %s: '--max-inherit-rr' must be specified with '-D'\n",
6915                                         progname, argv[0]);
6916                                 return CMD_HELP;
6917                         }
6918                         errno = 0;
6919                         max_inherit_rr = strtol(optarg, &end, 10);
6920                         if (errno != 0 || *end != '\0' || max_inherit_rr < -2) {
6921                                 fprintf(stderr,
6922                                         "%s %s: invalid max-inherit-rr '%s'\n",
6923                                         progname, argv[0], optarg);
6924                                 return CMD_HELP;
6925                         }
6926                         if (max_inherit_rr == 0) {
6927                                 max_inherit_rr = LMV_INHERIT_RR_NONE;
6928                         } else if (max_inherit_rr == -1) {
6929                                 max_inherit_rr = LMV_INHERIT_RR_UNLIMITED;
6930                         } else if (max_inherit_rr > LMV_INHERIT_RR_MAX) {
6931                                 fprintf(stderr,
6932                                         "%s %s: max-inherit-rr %d exceeds maximum %u\n",
6933                                         progname, argv[0], max_inherit_rr,
6934                                         LMV_INHERIT_RR_MAX);
6935                                 return CMD_HELP;
6936                         }
6937                         break;
6938                 default:
6939                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6940                                 progname, argv[optind - 1]);
6941                         /* fallthrough */
6942                 case 'h':
6943                         return CMD_HELP;
6944                 }
6945         }
6946
6947         if (optind == argc) {
6948                 fprintf(stderr, "%s %s: DIR must be specified\n",
6949                         progname, argv[0]);
6950                 return CMD_HELP;
6951         }
6952
6953         if (xattr && !foreign_mode) {
6954                 /*
6955                  * only print a warning as this is armless and will be
6956                  * ignored
6957                  */
6958                 fprintf(stderr,
6959                         "%s %s: xattr has been specified for non-foreign layout\n",
6960                         progname, argv[0]);
6961         } else if (foreign_mode && !xattr) {
6962                 fprintf(stderr,
6963                         "%s %s: xattr must be provided in foreign mode\n",
6964                         progname, argv[0]);
6965                 return CMD_HELP;
6966         }
6967
6968         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
6969             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
6970                 fprintf(stderr,
6971                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
6972                         progname, argv[0]);
6973                 return CMD_HELP;
6974         }
6975
6976         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
6977             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
6978                 /* if no parameters set, create directory on least-used MDTs */
6979                 lsa.lsa_stripe_off = LMV_OFFSET_DEFAULT;
6980                 lsa.lsa_stripe_count = 1;
6981         }
6982
6983         if (delete &&
6984             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
6985              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
6986                 fprintf(stderr,
6987                         "%s %s: cannot specify -d with -c or -i options\n",
6988                         progname, argv[0]);
6989                 return CMD_HELP;
6990         }
6991
6992         if (mode_opt) {
6993                 mode = strtoul(mode_opt, &end, 8);
6994                 if (*end != '\0') {
6995                         fprintf(stderr,
6996                                 "%s %s: bad MODE '%s'\n",
6997                                 progname, argv[0], mode_opt);
6998                         return CMD_HELP;
6999                 }
7000                 previous_mode = umask(0);
7001         }
7002
7003         if (max_inherit_rr != LAYOUT_INHERIT_UNSET &&
7004             lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
7005             lsa.lsa_stripe_off != LMV_OFFSET_DEFAULT) {
7006                 fprintf(stderr,
7007                         "%s %s: max-inherit-rr needs mdt-index=-1, not %lld\n",
7008                         progname, argv[0], lsa.lsa_stripe_off);
7009                 return CMD_HELP;
7010         }
7011
7012         /* foreign LMV/dir case */
7013         if (foreign_mode) {
7014                 if (argc > optind + 1) {
7015                         fprintf(stderr,
7016                                 "%s %s: cannot specify multiple foreign dirs\n",
7017                                 progname, argv[0]);
7018                         return CMD_HELP;
7019                 }
7020
7021                 dname = argv[optind];
7022                 result = llapi_dir_create_foreign(dname, mode, type, flags,
7023                                                   xattr);
7024                 if (result != 0)
7025                         fprintf(stderr,
7026                                 "%s mkdir: can't create foreign dir '%s': %s\n",
7027                                 progname, dname, strerror(-result));
7028                 return result;
7029         }
7030
7031         /*
7032          * initialize stripe parameters, in case param is converted to specific,
7033          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
7034          */
7035         param = calloc(1, offsetof(typeof(*param),
7036                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
7037                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
7038         if (!param) {
7039                 fprintf(stderr,
7040                         "%s %s: cannot allocate memory for parameters: %s\n",
7041                         progname, argv[0], strerror(ENOMEM));
7042                 return CMD_HELP;
7043         }
7044
7045         /* if "lfs setdirstripe -D -i -1" is used, assume 1-stripe directory */
7046         if (default_stripe && lsa.lsa_stripe_off == LMV_OFFSET_DEFAULT &&
7047             (lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT ||
7048              lsa.lsa_stripe_count == 0))
7049                 lsa.lsa_stripe_count = 1;
7050         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
7051                 param->lsp_stripe_count = lsa.lsa_stripe_count;
7052         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
7053                 param->lsp_stripe_offset = LMV_OFFSET_DEFAULT;
7054         else
7055                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
7056         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
7057                 param->lsp_stripe_pattern = lsa.lsa_pattern;
7058         else
7059                 param->lsp_stripe_pattern = LMV_HASH_TYPE_UNKNOWN;
7060         param->lsp_pool = lsa.lsa_pool_name;
7061         param->lsp_is_specific = false;
7062         if (default_stripe) {
7063                 if (max_inherit == LAYOUT_INHERIT_UNSET)
7064                         max_inherit = LMV_INHERIT_DEFAULT;
7065                 if (max_inherit_rr == LAYOUT_INHERIT_UNSET)
7066                         max_inherit_rr = LMV_INHERIT_RR_DEFAULT;
7067                 param->lsp_max_inherit = max_inherit;
7068                 param->lsp_max_inherit_rr = max_inherit_rr;
7069         }
7070         if (strcmp(argv[0], "mkdir") == 0)
7071                 param->lsp_is_create = true;
7072         if (lsa.lsa_nr_tgts > 1) {
7073                 if (lsa.lsa_stripe_count > 0 &&
7074                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
7075                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
7076                         fprintf(stderr,
7077                                 "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
7078                                 argv[0], lsa.lsa_stripe_count,
7079                                 lsa.lsa_nr_tgts);
7080                         free(param);
7081                         return CMD_HELP;
7082                 }
7083
7084                 param->lsp_is_specific = true;
7085                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
7086                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
7087         }
7088
7089         dname = argv[optind];
7090         do {
7091                 if (default_stripe) {
7092                         result = llapi_dir_set_default_lmv(dname, param);
7093                         if (result)
7094                                 fprintf(stderr,
7095                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
7096                                         progname, dname, strerror(-result));
7097                         continue;
7098                 }
7099
7100                 result = llapi_dir_create(dname, mode, param);
7101                 if (result)
7102                         fprintf(stderr,
7103                                 "%s setdirstripe: cannot create dir '%s': %s\n",
7104                                 progname, dname, strerror(-result));
7105         } while (!result && (dname = argv[++optind]));
7106
7107         if (mode_opt)
7108                 umask(previous_mode);
7109
7110         free(param);
7111         return result;
7112 }
7113
7114 /* functions */
7115 static int lfs_rmentry(int argc, char **argv)
7116 {
7117         char *dname;
7118         int   index;
7119         int   result = 0;
7120
7121         if (argc <= 1) {
7122                 fprintf(stderr, "error: %s: missing dirname\n",
7123                         argv[0]);
7124                 return CMD_HELP;
7125         }
7126
7127         index = 1;
7128         dname = argv[index];
7129         while (dname) {
7130                 result = llapi_direntry_remove(dname);
7131                 if (result) {
7132                         fprintf(stderr,
7133                                 "error: %s: remove dir entry '%s' failed\n",
7134                                 argv[0], dname);
7135                         break;
7136                 }
7137                 dname = argv[++index];
7138         }
7139         return result;
7140 }
7141
7142 static int lfs_unlink_foreign(int argc, char **argv)
7143 {
7144         char *name;
7145         int   index;
7146         int   result = 0;
7147
7148         if (argc <= 1) {
7149                 fprintf(stderr, "error: %s: missing pathname\n",
7150                         argv[0]);
7151                 return CMD_HELP;
7152         }
7153
7154         index = 1;
7155         name = argv[index];
7156         while (name != NULL) {
7157                 result = llapi_unlink_foreign(name);
7158                 if (result) {
7159                         fprintf(stderr,
7160                                 "error: %s: unlink foreign entry '%s' failed\n",
7161                                 argv[0], name);
7162                         break;
7163                 }
7164                 name = argv[++index];
7165         }
7166         return result;
7167 }
7168
7169 static int lfs_mv(int argc, char **argv)
7170 {
7171         struct lmv_user_md lmu = { LMV_USER_MAGIC };
7172         struct find_param param = {
7173                 .fp_max_depth = -1,
7174                 .fp_mdt_index = -1,
7175         };
7176         char *end;
7177         int c;
7178         int rc = 0;
7179         struct option long_opts[] = {
7180         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
7181         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
7182         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
7183         { .name = NULL } };
7184
7185         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
7186                 switch (c) {
7187 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7188                 case 'M':
7189                         fprintf(stderr,
7190                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
7191 #endif
7192                 case 'm':
7193                         errno = 0;
7194                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
7195                         if (errno != 0 || *end != '\0' ||
7196                             lmu.lum_stripe_offset >= UINT32_MAX) {
7197                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
7198                                         progname, optarg);
7199                                 return CMD_HELP;
7200                         }
7201                         break;
7202                 case 'v':
7203                         param.fp_verbose = VERBOSE_DETAIL;
7204                         break;
7205                 default:
7206                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
7207                                 progname, argv[optind - 1]);
7208                         return CMD_HELP;
7209                 }
7210         }
7211
7212         if (lmu.lum_stripe_offset == LMV_OFFSET_DEFAULT) {
7213                 fprintf(stderr, "%s mv: MDT index must be specified\n",
7214                         progname);
7215                 return CMD_HELP;
7216         }
7217
7218         if (optind >= argc) {
7219                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
7220                 return CMD_HELP;
7221         }
7222
7223         lmu.lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
7224
7225         /* initialize migrate mdt parameters */
7226         param.fp_lmv_md = &lmu;
7227         param.fp_migrate = 1;
7228         rc = llapi_migrate_mdt(argv[optind], &param);
7229         if (rc != 0)
7230                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
7231                         progname, argv[optind], lmu.lum_stripe_offset,
7232                         strerror(-rc));
7233         return rc;
7234 }
7235
7236 static int lfs_osts(int argc, char **argv)
7237 {
7238         return lfs_tgts(argc, argv);
7239 }
7240
7241 static int lfs_mdts(int argc, char **argv)
7242 {
7243         return lfs_tgts(argc, argv);
7244 }
7245
7246 static int lfs_df(int argc, char **argv)
7247 {
7248         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
7249         enum mntdf_flags flags = MNTDF_SHOW;
7250         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
7251         int c, rc = 0, index = 0;
7252         char fsname[PATH_MAX] = "", *pool_name = NULL;
7253         struct option long_opts[] = {
7254         { .val = 'h',   .name = "human-readable", .has_arg = no_argument },
7255         { .val = 'H',   .name = "si",           .has_arg = no_argument },
7256         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
7257         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
7258         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
7259         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
7260         { .name = NULL} };
7261
7262         while ((c = getopt_long(argc, argv, "hHilp:v", long_opts, NULL)) != -1) {
7263                 switch (c) {
7264                 case 'h':
7265                         flags = (flags & ~MNTDF_DECIMAL) | MNTDF_COOKED;
7266                         break;
7267                 case 'H':
7268                         flags |= MNTDF_COOKED | MNTDF_DECIMAL;
7269                         break;
7270                 case 'i':
7271                         flags |= MNTDF_INODES;
7272                         break;
7273                 case 'l':
7274                         flags |= MNTDF_LAZY;
7275                         break;
7276                 case 'p':
7277                         pool_name = optarg;
7278                         break;
7279                 case 'v':
7280                         flags |= MNTDF_VERBOSE;
7281                         break;
7282                 default:
7283                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7284                                 progname, argv[optind - 1]);
7285                         return CMD_HELP;
7286                 }
7287         }
7288         if (optind < argc && !realpath(argv[optind], path)) {
7289                 rc = -errno;
7290                 fprintf(stderr, "%s: invalid path '%s': %s\n",
7291                         progname, argv[optind], strerror(-rc));
7292                 return rc;
7293         }
7294
7295         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7296                 /* Check if we have a mount point */
7297                 if (mntdir[0] == '\0')
7298                         continue;
7299
7300                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
7301                 if (rc || path[0] != '\0')
7302                         break;
7303                 fsname[0] = '\0'; /* avoid matching in next loop */
7304                 mntdir[0] = '\0'; /* avoid matching in next loop */
7305         }
7306
7307         return rc;
7308 }
7309
7310 static int print_instance(const char *mntdir, char *buf, size_t buflen,
7311                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
7312 {
7313         int rc = 0;
7314
7315         if (opt_fsname == opt_instance) { /* both true or both false */
7316                 rc = llapi_getname(mntdir, buf, buflen);
7317         } else if (opt_fsname) {
7318                 /*
7319                  * llapi_search_mounts() fills @buf with fsname, but that is not
7320                  * called if explicit paths are specified on the command-line
7321                  */
7322                 if (buf[0] == '\0')
7323                         rc = llapi_get_fsname(mntdir, buf, buflen);
7324         } else /* if (opt_instance) */ {
7325                 rc = llapi_get_instance(mntdir, buf, buflen);
7326         }
7327
7328         if (rc < 0) {
7329                 fprintf(stderr, "cannot get instance for '%s': %s\n",
7330                         mntdir, strerror(-rc));
7331                 return rc;
7332         }
7333
7334         if (opt_mntdir)
7335                 printf("%s %s\n", buf, mntdir);
7336         else
7337                 printf("%s\n", buf);
7338
7339         return 0;
7340 }
7341
7342 static int lfs_getname(int argc, char **argv)
7343 {
7344         struct option long_opts[] = {
7345         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7346         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
7347         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
7348         { .name = NULL} };
7349         bool opt_instance = false, opt_fsname = false;
7350         char fsname[PATH_MAX] = "";
7351         int rc = 0, rc2, c;
7352
7353         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
7354                 switch (c) {
7355                 case 'i':
7356                         opt_instance = true;
7357                         break;
7358                 case 'n':
7359                         opt_fsname = true;
7360                         break;
7361                 default:
7362                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7363                                 progname, argv[optind - 1]);
7364                         /* fallthrough */
7365                 case 'h':
7366                         return CMD_HELP;
7367                 }
7368         }
7369
7370         if (optind == argc) { /* no paths specified, get all paths. */
7371                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
7372                 int index = 0;
7373
7374                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7375                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
7376                                              opt_instance, opt_fsname, true);
7377                         if (!rc)
7378                                 rc = rc2;
7379                         path[0] = fsname[0] = mntdir[0] = '\0';
7380                 }
7381         } else { /* paths specified, only attempt to search these. */
7382                 bool opt_mntdir;
7383
7384                 /* if only one path is given, print only requested info */
7385                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
7386
7387                 for (; optind < argc; optind++) {
7388                         rc2 = print_instance(argv[optind], fsname,
7389                                              sizeof(fsname), opt_instance,
7390                                              opt_fsname, opt_mntdir);
7391                         if (!rc)
7392                                 rc = rc2;
7393                         fsname[0] = '\0';
7394                 }
7395         }
7396
7397         return rc;
7398 }
7399
7400 static int lfs_check(int argc, char **argv)
7401 {
7402         char mntdir[PATH_MAX] = {'\0'};
7403         int num_types = 1;
7404         char *obd_types[3];
7405         char obd_type1[4];
7406         char obd_type2[4];
7407         char obd_type3[4];
7408         int rc;
7409
7410         if (argc != 2) {
7411                 fprintf(stderr, "%s check: server type must be specified\n",
7412                         progname);
7413                 return CMD_HELP;
7414         }
7415
7416         obd_types[0] = obd_type1;
7417         obd_types[1] = obd_type2;
7418         obd_types[2] = obd_type3;
7419
7420         if (strcmp(argv[1], "osts") == 0) {
7421                 strcpy(obd_types[0], "osc");
7422         } else if (strcmp(argv[1], "mdts") == 0 ||
7423                    strcmp(argv[1], "mds") == 0) {
7424                 strcpy(obd_types[0], "mdc");
7425         } else if (strcmp(argv[1], "mgts") == 0) {
7426                 strcpy(obd_types[0], "mgc");
7427         } else if (strcmp(argv[1], "all") == 0 ||
7428                    strcmp(argv[1], "servers") == 0) {
7429                 num_types = 3;
7430                 strcpy(obd_types[0], "osc");
7431                 strcpy(obd_types[1], "mdc");
7432                 strcpy(obd_types[2], "mgc");
7433         } else {
7434                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
7435                         progname, argv[1]);
7436                 return CMD_HELP;
7437         }
7438
7439         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
7440         if (rc < 0 || mntdir[0] == '\0') {
7441                 fprintf(stderr,
7442                         "%s check: cannot find mounted Lustre filesystem: %s\n",
7443                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
7444                 return rc;
7445         }
7446
7447         rc = llapi_target_check(num_types, obd_types, mntdir);
7448         if (rc)
7449                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
7450                         progname, argv[1], strerror(-rc));
7451
7452         return rc;
7453 }
7454
7455 #ifdef HAVE_SYS_QUOTA_H
7456 #define ADD_OVERFLOW(a, b) \
7457                      ((((a) + (b)) < (a)) ? \
7458                       ((a) = ULONG_MAX) : ((a) = (a) + (b)))
7459
7460 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
7461  * returns the value or ULONG_MAX on integer overflow or incorrect format
7462  * Notes:
7463  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
7464  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
7465  *        3. empty integer value is interpreted as 0
7466  */
7467 static unsigned long str2sec(const char *timestr)
7468 {
7469         const char spec[] = "smhdw";
7470         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7471         unsigned long val = 0;
7472         char *tail;
7473
7474         if (strpbrk(timestr, spec) == NULL) {
7475                 /*
7476                  * no specifiers inside the time string,
7477                  * should treat it as an integer value
7478                  */
7479                 val = strtoul(timestr, &tail, 10);
7480                 return *tail ? ULONG_MAX : val;
7481         }
7482
7483         /* format string is XXwXXdXXhXXmXXs */
7484         while (*timestr) {
7485                 unsigned long v;
7486                 int ind;
7487                 char *ptr;
7488
7489                 v = strtoul(timestr, &tail, 10);
7490                 if (v == ULONG_MAX || *tail == '\0')
7491                         /*
7492                          * value too large (ULONG_MAX or more)
7493                          * or missing specifier
7494                          */
7495                         goto error;
7496
7497                 ptr = strchr(spec, *tail);
7498                 if (!ptr)
7499                         /* unknown specifier */
7500                         goto error;
7501
7502                 ind = ptr - spec;
7503
7504                 /* check if product will overflow the type */
7505                 if (!(v < ULONG_MAX / mult[ind]))
7506                         goto error;
7507
7508                 ADD_OVERFLOW(val, mult[ind] * v);
7509                 if (val == ULONG_MAX)
7510                         goto error;
7511
7512                 timestr = tail + 1;
7513         }
7514
7515         return val;
7516
7517 error:
7518         return ULONG_MAX;
7519 }
7520
7521 #define ARG2ULL(nr, str, def_units)                                     \
7522 do {                                                                    \
7523         unsigned long long limit, units = def_units;                    \
7524         int rc;                                                         \
7525                                                                         \
7526         rc = llapi_parse_size(str, &limit, &units, 1);                  \
7527         if (rc < 0) {                                                   \
7528                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
7529                         progname, str);                                 \
7530                 return CMD_HELP;                                        \
7531         }                                                               \
7532         nr = limit;                                                     \
7533 } while (0)
7534
7535 static inline int has_times_option(int argc, char **argv)
7536 {
7537         int i;
7538
7539         for (i = 1; i < argc; i++)
7540                 if (!strcmp(argv[i], "-t"))
7541                         return 1;
7542
7543         return 0;
7544 }
7545
7546 static inline int lfs_verify_poolarg(char *pool)
7547 {
7548         if (strnlen(optarg, LOV_MAXPOOLNAME + 1) > LOV_MAXPOOLNAME) {
7549                 fprintf(stderr,
7550                         "Pool name '%.*s' is longer than %d\n",
7551                         LOV_MAXPOOLNAME, pool, LOV_MAXPOOLNAME);
7552                 return 1;
7553         }
7554         return 0;
7555 }
7556
7557 /* special grace time, only notify the user when its quota is over soft limit
7558  * but doesn't block new writes until the hard limit is reached.
7559  */
7560 #define NOTIFY_GRACE            "notify"
7561 #define NOTIFY_GRACE_TIME       LQUOTA_GRACE_MASK
7562
7563 #ifndef toqb
7564 static inline __u64 lustre_stoqb(size_t space)
7565 {
7566         return (space + QIF_DQBLKSIZE - 1) >> QIF_DQBLKSIZE_BITS;
7567 }
7568 #else
7569 #define lustre_stoqb   toqb
7570 #endif
7571
7572 int lfs_setquota_times(int argc, char **argv, struct if_quotactl *qctl)
7573 {
7574         int c, rc;
7575         char *mnt, *obd_type = (char *)qctl->obd_type;
7576         struct obd_dqblk *dqb = &qctl->qc_dqblk;
7577         struct obd_dqinfo *dqi = &qctl->qc_dqinfo;
7578         struct option long_opts[] = {
7579         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
7580         { .val = 'g',   .name = "group",        .has_arg = no_argument },
7581         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7582         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
7583         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
7584         { .val = 't',   .name = "times",        .has_arg = no_argument },
7585         { .val = 'u',   .name = "user",         .has_arg = no_argument },
7586         { .val = LFS_POOL_OPT,
7587                         .name = "pool",         .has_arg = required_argument },
7588         { .name = NULL } };
7589         int qtype;
7590
7591         qctl->qc_cmd  = LUSTRE_Q_SETINFO;
7592         qctl->qc_type = ALLQUOTA;
7593
7594         while ((c = getopt_long(argc, argv, "b:ghi:ptu",
7595                                 long_opts, NULL)) != -1) {
7596                 switch (c) {
7597                 case 'u':
7598                         qtype = USRQUOTA;
7599                         goto quota_type;
7600                 case 'g':
7601                         qtype = GRPQUOTA;
7602                         goto quota_type;
7603                 case 'p':
7604                         qtype = PRJQUOTA;
7605 quota_type:
7606                         if (qctl->qc_type != ALLQUOTA) {
7607                                 fprintf(stderr,
7608                                         "%s: -u/g/p cannot be used more than once\n",
7609                                         progname);
7610                                 return CMD_HELP;
7611                         }
7612                         qctl->qc_type = qtype;
7613                         break;
7614                 case 'b':
7615                         if (strncmp(optarg, NOTIFY_GRACE,
7616                                     strlen(NOTIFY_GRACE)) == 0) {
7617                                 dqi->dqi_bgrace = NOTIFY_GRACE_TIME;
7618                         } else {
7619                                 dqi->dqi_bgrace = str2sec(optarg);
7620                                 if (dqi->dqi_bgrace >= NOTIFY_GRACE_TIME) {
7621                                         fprintf(stderr,
7622                                                 "%s: bad block-grace: %s\n",
7623                                                 progname, optarg);
7624                                         return CMD_HELP;
7625                                 }
7626                         }
7627                         dqb->dqb_valid |= QIF_BTIME;
7628                         break;
7629                 case 'i':
7630                         if (strncmp(optarg, NOTIFY_GRACE,
7631                                     strlen(NOTIFY_GRACE)) == 0) {
7632                                 dqi->dqi_igrace = NOTIFY_GRACE_TIME;
7633                         } else {
7634                                 dqi->dqi_igrace = str2sec(optarg);
7635                                 if (dqi->dqi_igrace >= NOTIFY_GRACE_TIME) {
7636                                         fprintf(stderr,
7637                                                 "%s: bad inode-grace: %s\n",
7638                                                 progname, optarg);
7639                                         return CMD_HELP;
7640                                 }
7641                         }
7642                         dqb->dqb_valid |= QIF_ITIME;
7643                         break;
7644                 case 't': /* Yes, of course! */
7645                         break;
7646                 case LFS_POOL_OPT:
7647                         if (lfs_verify_poolarg(optarg))
7648                                 return -1;
7649                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7650                         qctl->qc_cmd  = LUSTRE_Q_SETINFOPOOL;
7651                         break;
7652                 /* getopt prints error message for us when opterr != 0 */
7653                 default:
7654                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7655                                 progname, argv[optind - 1]);
7656                         /* fallthrough */
7657                 case 'h':
7658                         return CMD_HELP;
7659                 }
7660         }
7661
7662         if (qctl->qc_type == ALLQUOTA) {
7663                 fprintf(stderr, "%s: neither -u, -g nor -p specified\n",
7664                         progname);
7665                 return CMD_HELP;
7666         }
7667
7668         if (optind != argc - 1) {
7669                 fprintf(stderr, "%s: unexpected parameter '%s'\n",
7670                         progname, argv[optind + 1]);
7671                 return CMD_HELP;
7672         }
7673
7674         mnt = argv[optind];
7675         rc = llapi_quotactl(mnt, qctl);
7676         if (rc) {
7677                 if (*obd_type)
7678                         fprintf(stderr, "%s %s ", obd_type,
7679                                 obd_uuid2str(&qctl->obd_uuid));
7680                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
7681                 return rc;
7682         }
7683
7684         return 0;
7685 }
7686
7687 #define BSLIMIT (1 << 0)
7688 #define BHLIMIT (1 << 1)
7689 #define ISLIMIT (1 << 2)
7690 #define IHLIMIT (1 << 3)
7691
7692 int lfs_setquota(int argc, char **argv)
7693 {
7694         int c, rc = 0;
7695         struct if_quotactl *qctl;
7696         char *mnt, *obd_type;
7697         struct obd_dqblk *dqb;
7698         struct option long_opts[] = {
7699         { .val = 'b',   .name = "block-softlimit",
7700                                                 .has_arg = required_argument },
7701         { .val = 'B',   .name = "block-hardlimit",
7702                                                 .has_arg = required_argument },
7703         { .val = 'd',   .name = "default",      .has_arg = no_argument },
7704         { .val = 'g',   .name = "group",        .has_arg = required_argument },
7705         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
7706         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7707         { .val = 'i',   .name = "inode-softlimit",
7708                                                 .has_arg = required_argument },
7709         { .val = 'I',   .name = "inode-hardlimit",
7710                                                 .has_arg = required_argument },
7711         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
7712         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
7713         { .val = 'u',   .name = "user",         .has_arg = required_argument },
7714         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
7715         { .val = LFS_POOL_OPT,
7716                         .name = "pool",         .has_arg = required_argument },
7717         { .name = NULL } };
7718         unsigned int limit_mask = 0;
7719         bool use_default = false;
7720         int qtype, qctl_len;
7721
7722         qctl_len = sizeof(*qctl) + LOV_MAXPOOLNAME + 1;
7723         qctl = malloc(qctl_len);
7724         if (!qctl)
7725                 return -ENOMEM;
7726
7727         memset(qctl, 0, qctl_len);
7728         obd_type = (char *)qctl->obd_type;
7729         dqb = &qctl->qc_dqblk;
7730
7731         if (has_times_option(argc, argv)) {
7732                 rc = lfs_setquota_times(argc, argv, qctl);
7733                 goto out;
7734         }
7735
7736         qctl->qc_cmd  = LUSTRE_Q_SETQUOTA;
7737         qctl->qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
7738                                    * so it can be used as a marker that qc_type
7739                                    * isn't reinitialized from command line
7740                                    */
7741
7742         while ((c = getopt_long(argc, argv, "b:B:dg:Ghi:I:p:Pu:U",
7743                 long_opts, NULL)) != -1) {
7744                 switch (c) {
7745                 case 'U':
7746                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7747                         qtype = USRQUOTA;
7748                         qctl->qc_id = 0;
7749                         goto quota_type_def;
7750                 case 'u':
7751                         qtype = USRQUOTA;
7752                         rc = name2uid(&qctl->qc_id, optarg);
7753                         goto quota_type;
7754                 case 'G':
7755                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7756                         qtype = GRPQUOTA;
7757                         qctl->qc_id = 0;
7758                         goto quota_type_def;
7759                 case 'g':
7760                         qtype = GRPQUOTA;
7761                         rc = name2gid(&qctl->qc_id, optarg);
7762                         goto quota_type;
7763                 case 'P':
7764                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7765                         qtype = PRJQUOTA;
7766                         qctl->qc_id = 0;
7767                         goto quota_type_def;
7768                 case 'p':
7769                         qtype = PRJQUOTA;
7770                         rc = name2projid(&qctl->qc_id, optarg);
7771 quota_type:
7772                         if (rc) {
7773                                 if (str2quotaid(&qctl->qc_id, optarg)) {
7774                                         fprintf(stderr,
7775                                                 "%s setquota: invalid id '%s'\n",
7776                                                 progname, optarg);
7777                                         rc = -1;
7778                                         goto out;
7779                                 }
7780                         }
7781
7782                         if (qctl->qc_id == 0) {
7783                                 fprintf(stderr,
7784                                         "%s setquota: can't set quota for root usr/group/project.\n",
7785                                         progname);
7786                                 rc = -1;
7787                                 goto out;
7788                         }
7789
7790 quota_type_def:
7791                         if (qctl->qc_type != ALLQUOTA) {
7792                                 fprintf(stderr,
7793                                         "%s setquota: only one of -u, -U, -g, -G, -p or -P may be specified\n",
7794                                         progname);
7795                                 rc = CMD_HELP;
7796                                 goto out;
7797                         }
7798                         qctl->qc_type = qtype;
7799                         break;
7800                 case 'd':
7801                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7802                         use_default = true;
7803                         break;
7804                 case 'b':
7805                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
7806                         dqb->dqb_bsoftlimit >>= 10;
7807                         limit_mask |= BSLIMIT;
7808                         if (dqb->dqb_bsoftlimit &&
7809                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
7810                                 fprintf(stderr,
7811                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7812                                         progname,
7813                                         (unsigned long long)dqb->dqb_bsoftlimit,
7814                                         progname);
7815                         break;
7816                 case 'B':
7817                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
7818                         dqb->dqb_bhardlimit >>= 10;
7819                         limit_mask |= BHLIMIT;
7820                         if (dqb->dqb_bhardlimit &&
7821                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
7822                                 fprintf(stderr,
7823                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
7824                                         "See '%s help setquota' or Lustre manual for details\n",
7825                                         progname,
7826                                         (unsigned long long)dqb->dqb_bhardlimit,
7827                                         progname);
7828                         break;
7829                 case 'i':
7830                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
7831                         limit_mask |= ISLIMIT;
7832                         if (dqb->dqb_isoftlimit &&
7833                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
7834                                 fprintf(stderr,
7835                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7836                                         progname,
7837                                         (unsigned long long)dqb->dqb_isoftlimit,
7838                                         progname);
7839                         break;
7840                 case 'I':
7841                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
7842                         limit_mask |= IHLIMIT;
7843                         if (dqb->dqb_ihardlimit &&
7844                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
7845                                 fprintf(stderr,
7846                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7847                                         progname,
7848                                         (unsigned long long)dqb->dqb_ihardlimit,
7849                                         progname);
7850                         break;
7851                 case LFS_POOL_OPT:
7852                         if (lfs_verify_poolarg(optarg)) {
7853                                 rc = -1;
7854                                 goto out;
7855                         }
7856                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7857                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_SETDEFAULT ?
7858                                                 LUSTRE_Q_SETDEFAULT_POOL :
7859                                                 LUSTRE_Q_SETQUOTAPOOL;
7860                         break;
7861                 default:
7862                         fprintf(stderr,
7863                                 "%s setquota: unrecognized option '%s'\n",
7864                                 progname, argv[optind - 1]);
7865                         /* fallthrough */
7866                 case 'h':
7867                         rc = CMD_HELP;
7868                         goto out;
7869                 }
7870         }
7871
7872         if (qctl->qc_type == ALLQUOTA) {
7873                 fprintf(stderr,
7874                         "%s setquota: either -u or -g must be specified\n",
7875                         progname);
7876                 rc = CMD_HELP;
7877                 goto out;
7878         }
7879
7880         if (!use_default && limit_mask == 0) {
7881                 fprintf(stderr,
7882                         "%s setquota: at least one limit must be specified\n",
7883                         progname);
7884                 rc = CMD_HELP;
7885                 goto out;
7886         }
7887
7888         if (use_default && limit_mask != 0) {
7889                 fprintf(stderr,
7890                         "%s setquota: limits should not be specified when using default quota\n",
7891                         progname);
7892                 rc = CMD_HELP;
7893                 goto out;
7894         }
7895
7896         if (use_default && qctl->qc_id == 0) {
7897                 fprintf(stderr,
7898                         "%s setquota: can not set default quota for root user/group/project\n",
7899                         progname);
7900                 rc = CMD_HELP;
7901                 goto out;
7902         }
7903
7904         if (optind != argc - 1) {
7905                 fprintf(stderr,
7906                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
7907                         progname, argv[optind]);
7908                 rc = CMD_HELP;
7909                 goto out;
7910         }
7911
7912         mnt = argv[optind];
7913
7914         if (use_default) {
7915                 dqb->dqb_bhardlimit = 0;
7916                 dqb->dqb_bsoftlimit = 0;
7917                 dqb->dqb_ihardlimit = 0;
7918                 dqb->dqb_isoftlimit = 0;
7919                 dqb->dqb_itime = 0;
7920                 dqb->dqb_btime = 0;
7921                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
7922                 /* do not set inode limits for Pool Quotas */
7923                 if (qctl->qc_cmd  == LUSTRE_Q_SETDEFAULT_POOL)
7924                         dqb->dqb_valid ^= QIF_ILIMITS | QIF_ITIME;
7925         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
7926                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
7927                 /* sigh, we can't just set blimits/ilimits */
7928                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
7929                                                .qc_type = qctl->qc_type,
7930                                                .qc_id   = qctl->qc_id};
7931
7932                 rc = llapi_quotactl(mnt, &tmp_qctl);
7933                 if (rc < 0)
7934                         goto out;
7935
7936                 if (!(limit_mask & BHLIMIT))
7937                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
7938                 if (!(limit_mask & BSLIMIT))
7939                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
7940                 if (!(limit_mask & IHLIMIT))
7941                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
7942                 if (!(limit_mask & ISLIMIT))
7943                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
7944
7945                 /* Keep grace times if we have got no softlimit arguments */
7946                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
7947                         dqb->dqb_valid |= QIF_BTIME;
7948                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
7949                 }
7950
7951                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
7952                         dqb->dqb_valid |= QIF_ITIME;
7953                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
7954                 }
7955         }
7956
7957         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
7958         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
7959
7960         rc = llapi_quotactl(mnt, qctl);
7961         if (rc) {
7962                 if (*obd_type)
7963                         fprintf(stderr,
7964                                 "%s setquota: cannot quotactl '%s' '%s': %s",
7965                                 progname, obd_type,
7966                                 obd_uuid2str(&qctl->obd_uuid), strerror(-rc));
7967         }
7968 out:
7969         if (rc)
7970                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
7971
7972         free(qctl);
7973         return rc;
7974 }
7975
7976 /* Converts seconds value into format string
7977  * result is returned in buf
7978  * Notes:
7979  *        1. result is in descenting order: 1w2d3h4m5s
7980  *        2. zero fields are not filled (except for p. 3): 5d1s
7981  *        3. zero seconds value is presented as "0s"
7982  */
7983 static char *__sec2str(time_t seconds, char *buf)
7984 {
7985         const char spec[] = "smhdw";
7986         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7987         unsigned long c;
7988         char *tail = buf;
7989         int i;
7990
7991         for (i = ARRAY_SIZE(mult) - 1 ; i >= 0; i--) {
7992                 c = seconds / mult[i];
7993
7994                 if (c > 0 || (i == 0 && buf == tail))
7995                         tail += scnprintf(tail, 40-(tail-buf), "%lu%c", c,
7996                                           spec[i]);
7997
7998                 seconds %= mult[i];
7999         }
8000
8001         return tail;
8002 }
8003
8004 static void sec2str(time_t seconds, char *buf, int rc)
8005 {
8006         char *tail = buf;
8007
8008         if (rc)
8009                 *tail++ = '[';
8010
8011         tail = __sec2str(seconds, tail);
8012
8013         if (rc && tail - buf < 39) {
8014                 *tail++ = ']';
8015                 *tail++ = 0;
8016         }
8017 }
8018
8019 static void diff2str(time_t seconds, char *buf, time_t now)
8020 {
8021         buf[0] = 0;
8022         if (!seconds)
8023                 return;
8024         if (seconds <= now) {
8025                 strcpy(buf, "none");
8026                 return;
8027         }
8028         __sec2str(seconds - now, buf);
8029 }
8030
8031 static void print_quota_title(char *name, struct if_quotactl *qctl,
8032                               bool human_readable, bool show_default)
8033 {
8034         if (show_default) {
8035                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
8036                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
8037                        "Filesystem", "bquota", "blimit", "bgrace",
8038                        "iquota", "ilimit", "igrace");
8039         } else {
8040                 printf("Disk quotas for %s %s (%cid %u):\n",
8041                        qtype_name(qctl->qc_type), name,
8042                        *qtype_name(qctl->qc_type), qctl->qc_id);
8043                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
8044                        "Filesystem", human_readable ? "used" : "kbytes",
8045                        "quota", "limit", "grace",
8046                        "files", "quota", "limit", "grace");
8047         }
8048 }
8049
8050 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
8051 {
8052         if (!h) {
8053                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
8054         } else {
8055                 if (num >> 40)
8056                         snprintf(buf, buflen, "%5.4gP",
8057                                  (double)num / ((__u64)1 << 40));
8058                 else if (num >> 30)
8059                         snprintf(buf, buflen, "%5.4gT",
8060                                  (double)num / (1 << 30));
8061                 else if (num >> 20)
8062                         snprintf(buf, buflen, "%5.4gG",
8063                                  (double)num / (1 << 20));
8064                 else if (num >> 10)
8065                         snprintf(buf, buflen, "%5.4gM",
8066                                  (double)num / (1 << 10));
8067                 else
8068                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
8069         }
8070 }
8071
8072 #ifdef HAVE_NATIVE_CLIENT
8073 /* In the current Lustre implementation, the grace time is either the time
8074  * or the timestamp to be used after some quota ID exceeds the soft limt,
8075  * 48 bits should be enough, its high 16 bits can be used as quota flags.
8076  */
8077 #define LQUOTA_GRACE_BITS       48
8078 #define LQUOTA_GRACE_MASK       ((1ULL << LQUOTA_GRACE_BITS) - 1)
8079 #define LQUOTA_GRACE_MAX        LQUOTA_GRACE_MASK
8080 #define LQUOTA_GRACE(t)         (t & LQUOTA_GRACE_MASK)
8081 #define LQUOTA_FLAG(t)          (t >> LQUOTA_GRACE_BITS)
8082 #define LQUOTA_GRACE_FLAG(t, f) ((__u64)t | (__u64)f << LQUOTA_GRACE_BITS)
8083 #endif
8084
8085 #define STRBUF_LEN      24
8086 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
8087                         int rc, bool h, bool show_default)
8088 {
8089         time_t now;
8090
8091         time(&now);
8092
8093         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
8094             qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
8095             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT ||
8096             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT_POOL) {
8097                 int bover = 0, iover = 0;
8098                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
8099                 char numbuf[3][STRBUF_LEN + 2]; /* 2 for brackets or wildcard */
8100                 char timebuf[40];
8101                 char strbuf[STRBUF_LEN];
8102
8103                 if (dqb->dqb_bhardlimit &&
8104                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
8105                         bover = 1;
8106                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
8107                         if (dqb->dqb_btime > now)
8108                                 bover = 2;
8109                         else
8110                                 bover = 3;
8111                 }
8112
8113                 if (dqb->dqb_ihardlimit &&
8114                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
8115                         iover = 1;
8116                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
8117                         if (dqb->dqb_itime > now)
8118                                 iover = 2;
8119                         else
8120                                 iover = 3;
8121                 }
8122
8123                 if (strlen(mnt) > 15)
8124                         printf("%s\n%15s", mnt, "");
8125                 else
8126                         printf("%15s", mnt);
8127
8128                 if (bover)
8129                         diff2str(dqb->dqb_btime, timebuf, now);
8130                 else if (show_default)
8131                         snprintf(timebuf, sizeof(timebuf), "%llu",
8132                                  (unsigned long long)dqb->dqb_btime);
8133
8134                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
8135                            strbuf, sizeof(strbuf), h);
8136                 if (rc == -EREMOTEIO)
8137                         sprintf(numbuf[0], "%s*", strbuf);
8138                 else
8139                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
8140                                 "%s" : "[%s]", strbuf);
8141
8142                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
8143                 if (type == QC_GENERAL)
8144                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
8145                                 "%s" : "[%s]", strbuf);
8146                 else
8147                         sprintf(numbuf[1], "%s", "-");
8148
8149                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
8150                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
8151                         "%s" : "[%s]", strbuf);
8152
8153                 if (show_default)
8154                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
8155                 else
8156                         printf(" %7s%c %6s %7s %7s",
8157                                numbuf[0], bover ? '*' : ' ', numbuf[1],
8158                                numbuf[2], bover > 1 ? timebuf : "-");
8159
8160                 if (iover)
8161                         diff2str(dqb->dqb_itime, timebuf, now);
8162                 else if (show_default)
8163                         snprintf(timebuf, sizeof(timebuf), "%llu",
8164                                  (unsigned long long)dqb->dqb_itime);
8165
8166                 snprintf(numbuf[0], sizeof(numbuf),
8167                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
8168                          (uintmax_t)dqb->dqb_curinodes);
8169
8170                 if (type == QC_GENERAL)
8171                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
8172                                 "%ju" : "[%ju]",
8173                                 (uintmax_t)dqb->dqb_isoftlimit);
8174                 else
8175                         sprintf(numbuf[1], "%s", "-");
8176
8177                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
8178                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
8179
8180                 if (show_default)
8181                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
8182                 else if (type != QC_OSTIDX)
8183                         printf(" %7s%c %6s %7s %7s",
8184                                numbuf[0], iover ? '*' : ' ', numbuf[1],
8185                                numbuf[2], iover > 1 ? timebuf : "-");
8186                 else
8187                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
8188                 printf("\n");
8189         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO || LUSTRE_Q_GETINFOPOOL ||
8190                    qctl->qc_cmd == Q_GETOINFO) {
8191                 char bgtimebuf[40];
8192                 char igtimebuf[40];
8193
8194                 if (qctl->qc_dqinfo.dqi_bgrace == NOTIFY_GRACE_TIME)
8195                         strncpy(bgtimebuf, NOTIFY_GRACE, 40);
8196                 else
8197                         sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
8198                 if (qctl->qc_dqinfo.dqi_igrace == NOTIFY_GRACE_TIME)
8199                         strncpy(igtimebuf, NOTIFY_GRACE, 40);
8200                 else
8201                         sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
8202
8203                 printf("Block grace time: %s; Inode grace time: %s\n",
8204                        bgtimebuf, igtimebuf);
8205         }
8206 }
8207
8208 static int tgt_name2index(const char *tgtname, unsigned int *idx)
8209 {
8210         char *dash, *endp;
8211
8212         /* format is "lustre-OST0001" */
8213         dash = memchr(tgtname, '-', LUSTRE_MAXFSNAME + 1);
8214         if (!dash) {
8215                 fprintf(stderr, "wrong tgtname format '%s'\n", tgtname);
8216                 return -EINVAL;
8217         }
8218         dash += 4;
8219
8220         *idx = strtoul(dash, &endp, 16);
8221         if (*idx > 0xffff) {
8222                 fprintf(stderr, "wrong index %s\n", tgtname);
8223                 return -ERANGE;
8224         }
8225
8226         return 0;
8227 }
8228
8229 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
8230                            bool h, __u64 *total)
8231 {
8232         int rc = 0, rc1 = 0, count = 0, i = 0;
8233         char **list = NULL, *buffer = NULL;
8234         __u32 valid = qctl->qc_valid;
8235
8236         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL && is_mdt)
8237                 return 0;
8238
8239         /* Is it correct for the case OST0000, OST0002, OST0003 -
8240          * we will ask OST0001 that is absent and won't ask OST0003? */
8241         rc = llapi_get_obd_count(mnt, &count, is_mdt);
8242         if (rc) {
8243                 fprintf(stderr, "can not get %s count: %s\n",
8244                         is_mdt ? "mdt" : "ost", strerror(-rc));
8245                 return rc;
8246         }
8247
8248         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8249                 char fname[PATH_MAX];
8250                 char fsname[LUSTRE_MAXFSNAME + 1];
8251                 int bufsize = sizeof(struct obd_uuid) * count;
8252
8253                 rc = llapi_search_fsname(mnt, fsname);
8254                 if (rc) {
8255                         fprintf(stderr, "cannot get fsname for mountpoint %s\n",
8256                                 mnt);
8257                         goto out;
8258                 }
8259                 buffer = malloc(bufsize + sizeof(*list) * count);
8260                 if (!buffer)
8261                         return -ENOMEM;
8262                 list = (char **)(buffer + bufsize);
8263                 snprintf(fname, PATH_MAX, "%s.%s", fsname, qctl->qc_poolname);
8264                 count = llapi_get_poolmembers(fname, list, count,
8265                                               buffer, bufsize);
8266                 if (count <= 0)
8267                         goto out;
8268         }
8269
8270         for (i = 0; i < count; i++) {
8271                 if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8272                         unsigned int index;
8273
8274                         if (tgt_name2index(list[i], &index))
8275                                 continue;
8276                         qctl->qc_idx = index;
8277                 } else {
8278                         qctl->qc_idx = i;
8279                 }
8280
8281                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
8282                 rc = llapi_quotactl(mnt, qctl);
8283                 if (rc) {
8284                         /* It is remote client case. */
8285                         if (rc == -EOPNOTSUPP) {
8286                                 rc = 0;
8287                                 goto out;
8288                         }
8289
8290                         if (!rc1)
8291                                 rc1 = rc;
8292                         fprintf(stderr, "quotactl %s%d failed.\n",
8293                                 is_mdt ? "mdt" : "ost", qctl->qc_idx);
8294                         continue;
8295                 }
8296
8297                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
8298                             qctl->qc_valid, 0, h, false);
8299                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
8300                                    qctl->qc_dqblk.dqb_bhardlimit;
8301         }
8302 out:
8303         if (buffer)
8304                 free(buffer);
8305         qctl->qc_valid = valid;
8306         return rc ? : rc1;
8307 }
8308
8309 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
8310                            int verbose, int quiet, bool human_readable,
8311                            bool show_default)
8312 {
8313         int rc1 = 0, rc2 = 0, rc3 = 0;
8314         char *obd_type = (char *)qctl->obd_type;
8315         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
8316         __u64 total_ialloc = 0, total_balloc = 0;
8317         bool use_default_for_blk = false;
8318         bool use_default_for_file = false;
8319         int inacc;
8320
8321         rc1 = llapi_quotactl(mnt, qctl);
8322         if (rc1 < 0) {
8323                 switch (rc1) {
8324                 case -ESRCH:
8325                         fprintf(stderr, "%s quotas are not enabled.\n",
8326                                 qtype_name(qctl->qc_type));
8327                         goto out;
8328                 case -EPERM:
8329                         fprintf(stderr, "Permission denied.\n");
8330                 case -ENODEV:
8331                 case -ENOENT:
8332                         /* We already got error message. */
8333                         goto out;
8334                 default:
8335                         fprintf(stderr, "Unexpected quotactl error: %s\n",
8336                                 strerror(-rc1));
8337                 }
8338         }
8339
8340         if (!show_default && qctl->qc_id == 0) {
8341                 qctl->qc_dqblk.dqb_bhardlimit = 0;
8342                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
8343                 qctl->qc_dqblk.dqb_ihardlimit = 0;
8344                 qctl->qc_dqblk.dqb_isoftlimit = 0;
8345                 qctl->qc_dqblk.dqb_btime = 0;
8346                 qctl->qc_dqblk.dqb_itime = 0;
8347                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
8348         }
8349
8350         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
8351             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
8352                 use_default_for_blk = true;
8353                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
8354         }
8355
8356         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
8357             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
8358                 use_default_for_file = true;
8359                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
8360         }
8361
8362         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8363              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
8364              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT_POOL ||
8365              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
8366                 print_quota_title(name, qctl, human_readable, show_default);
8367
8368         if (rc1 && *obd_type)
8369                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
8370
8371         if (qctl->qc_valid != QC_GENERAL)
8372                 mnt = "";
8373
8374         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8375                  qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8376                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
8377                  (QIF_LIMITS|QIF_USAGE));
8378
8379         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
8380
8381         if (!show_default && verbose &&
8382             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
8383             qctl->qc_cmd != LUSTRE_Q_GETINFOPOOL) {
8384                 char strbuf[STRBUF_LEN];
8385
8386                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
8387                                       &total_ialloc);
8388                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
8389                                       &total_balloc);
8390                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
8391                            human_readable);
8392                 printf("Total allocated inode limit: %ju, total allocated block limit: %s\n",
8393                        (uintmax_t)total_ialloc, strbuf);
8394         }
8395
8396         if (use_default_for_blk)
8397                 printf("%cid %u is using default block quota setting\n",
8398                        *qtype_name(qctl->qc_type), qctl->qc_id);
8399
8400         if (use_default_for_file)
8401                 printf("%cid %u is using default file quota setting\n",
8402                        *qtype_name(qctl->qc_type), qctl->qc_id);
8403
8404         if (rc1 || rc2 || rc3 || inacc)
8405                 printf("Some errors happened when getting quota info. Some devices may be not working or deactivated. The data in \"[]\" is inaccurate.\n");
8406 out:
8407         if (rc1)
8408                 return rc1;
8409         if (rc2)
8410                 return rc2;
8411         if (rc3)
8412                 return rc3;
8413         if (inacc)
8414                 return -EIO;
8415
8416         return 0;
8417 }
8418
8419 static int lfs_project(int argc, char **argv)
8420 {
8421         int ret = 0, err = 0, c, i;
8422         struct project_handle_control phc = { 0 };
8423         enum lfs_project_ops_t op;
8424
8425         phc.newline = true;
8426         phc.assign_projid = false;
8427         /* default action */
8428         op = LFS_PROJECT_LIST;
8429
8430         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
8431                 switch (c) {
8432                 case 'c':
8433                         if (op != LFS_PROJECT_LIST) {
8434                                 fprintf(stderr,
8435                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8436                                         progname);
8437                                 return CMD_HELP;
8438                         }
8439
8440                         op = LFS_PROJECT_CHECK;
8441                         break;
8442                 case 'C':
8443                         if (op != LFS_PROJECT_LIST) {
8444                                 fprintf(stderr,
8445                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8446                                         progname);
8447                                 return CMD_HELP;
8448                         }
8449
8450                         op = LFS_PROJECT_CLEAR;
8451                         break;
8452                 case 's':
8453                         if (op != LFS_PROJECT_LIST) {
8454                                 fprintf(stderr,
8455                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8456                                         progname);
8457                                 return CMD_HELP;
8458                         }
8459
8460                         phc.set_inherit = true;
8461                         op = LFS_PROJECT_SET;
8462                         break;
8463                 case 'd':
8464                         phc.dironly = true;
8465                         break;
8466                 case 'k':
8467                         phc.keep_projid = true;
8468                         break;
8469                 case 'r':
8470                         phc.recursive = true;
8471                         break;
8472                 case 'p':
8473                         if (str2quotaid(&phc.projid, optarg)) {
8474                                 fprintf(stderr,
8475                                         "Invalid project ID: %s\n",
8476                                         optarg);
8477                                 return CMD_HELP;
8478                         }
8479
8480                         phc.assign_projid = true;
8481
8482                         break;
8483                 case '0':
8484                         phc.newline = false;
8485                         break;
8486                 default:
8487                         fprintf(stderr, "%s: invalid option '%c'\n",
8488                                 progname, optopt);
8489                         return CMD_HELP;
8490                 }
8491         }
8492
8493         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
8494                 op = LFS_PROJECT_SET;
8495                 phc.set_projid = true;
8496         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
8497                 phc.set_projid = true;
8498         }
8499
8500         switch (op) {
8501         case LFS_PROJECT_CHECK:
8502                 if (phc.keep_projid) {
8503                         fprintf(stderr,
8504                                 "%s: '-k' is useless together with '-c'\n",
8505                                 progname);
8506                         return CMD_HELP;
8507                 }
8508                 break;
8509         case LFS_PROJECT_CLEAR:
8510                 if (!phc.newline) {
8511                         fprintf(stderr,
8512                                 "%s: '-0' is useless together with '-C'\n",
8513                                 progname);
8514                         return CMD_HELP;
8515                 }
8516                 if (phc.assign_projid) {
8517                         fprintf(stderr,
8518                                 "%s: '-p' is useless together with '-C'\n",
8519                                 progname);
8520                         return CMD_HELP;
8521                 }
8522                 break;
8523         case LFS_PROJECT_SET:
8524                 if (!phc.newline) {
8525                         fprintf(stderr,
8526                                 "%s: '-0' is useless together with '-s'\n",
8527                                 progname);
8528                         return CMD_HELP;
8529                 }
8530                 if (phc.keep_projid) {
8531                         fprintf(stderr,
8532                                 "%s: '-k' is useless together with '-s'\n",
8533                                 progname);
8534                         return CMD_HELP;
8535                 }
8536                 break;
8537         default:
8538                 if (!phc.newline) {
8539                         fprintf(stderr,
8540                                 "%s: '-0' is useless for list operations\n",
8541                                 progname);
8542                         return CMD_HELP;
8543                 }
8544                 break;
8545         }
8546
8547         argv += optind;
8548         argc -= optind;
8549         if (argc == 0) {
8550                 fprintf(stderr, "%s: missing file or directory target(s)\n",
8551                         progname);
8552                 return CMD_HELP;
8553         }
8554
8555         for (i = 0; i < argc; i++) {
8556                 switch (op) {
8557                 case LFS_PROJECT_CHECK:
8558                         err = lfs_project_check(argv[i], &phc);
8559                         break;
8560                 case LFS_PROJECT_LIST:
8561                         err = lfs_project_list(argv[i], &phc);
8562                         break;
8563                 case LFS_PROJECT_CLEAR:
8564                         err = lfs_project_clear(argv[i], &phc);
8565                         break;
8566                 case LFS_PROJECT_SET:
8567                         err = lfs_project_set(argv[i], &phc);
8568                         break;
8569                 default:
8570                         break;
8571                 }
8572                 if (err && !ret)
8573                         ret = err;
8574         }
8575
8576         return ret;
8577 }
8578
8579 static int lfs_quota(int argc, char **argv)
8580 {
8581         int c;
8582         char *mnt, *name = NULL;
8583         struct if_quotactl *qctl;
8584         char *obd_uuid;
8585         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
8586         __u32 valid = QC_GENERAL, idx = 0;
8587         bool human_readable = false;
8588         bool show_default = false;
8589         int qtype;
8590         bool show_pools = false;
8591         struct option long_opts[] = {
8592         { .val = LFS_POOL_OPT, .name = "pool", .has_arg = optional_argument },
8593         { .name = NULL } };
8594         char **poollist = NULL;
8595         char *buf = NULL;
8596         int poolcount, i;
8597
8598         qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
8599         if (!qctl)
8600                 return -ENOMEM;
8601
8602         qctl->qc_cmd = LUSTRE_Q_GETQUOTA;
8603         qctl->qc_type = ALLQUOTA;
8604         obd_uuid = (char *)qctl->obd_uuid.uuid;
8605
8606         while ((c = getopt_long(argc, argv, "gGi:I:o:pPqtuUvh",
8607                 long_opts, NULL)) != -1) {
8608                 switch (c) {
8609                 case 'U':
8610                         show_default = true;
8611                 case 'u':
8612                         qtype = USRQUOTA;
8613                         goto quota_type;
8614                 case 'G':
8615                         show_default = true;
8616                 case 'g':
8617                         qtype = GRPQUOTA;
8618                         goto quota_type;
8619                 case 'P':
8620                         show_default = true;
8621                 case 'p':
8622                         qtype = PRJQUOTA;
8623 quota_type:
8624                         if (qctl->qc_type != ALLQUOTA) {
8625                                 fprintf(stderr,
8626                                         "%s quota: only one of -u, -g, or -p may be specified\n",
8627                                         progname);
8628                                 rc = CMD_HELP;
8629                                 goto out;
8630                         }
8631                         qctl->qc_type = qtype;
8632                         break;
8633                 case 't':
8634                         qctl->qc_cmd = LUSTRE_Q_GETINFO;
8635                         break;
8636                 case 'o':
8637                         valid = qctl->qc_valid = QC_UUID;
8638                         snprintf(obd_uuid, sizeof(*obd_uuid), "%s", optarg);
8639                         break;
8640                 case 'i':
8641                         valid = qctl->qc_valid = QC_MDTIDX;
8642                         idx = qctl->qc_idx = atoi(optarg);
8643                         if (idx == 0 && *optarg != '0') {
8644                                 fprintf(stderr,
8645                                         "%s quota: invalid MDT index '%s'\n",
8646                                         progname, optarg);
8647                                 rc = CMD_HELP;
8648                                 goto out;
8649                         }
8650                         break;
8651                 case 'I':
8652                         valid = qctl->qc_valid = QC_OSTIDX;
8653                         idx = qctl->qc_idx = atoi(optarg);
8654                         if (idx == 0 && *optarg != '0') {
8655                                 fprintf(stderr,
8656                                         "%s quota: invalid OST index '%s'\n",
8657                                         progname, optarg);
8658                                 rc = CMD_HELP;
8659                                 goto out;
8660                         }
8661                         break;
8662                 case 'v':
8663                         verbose = 1;
8664                         break;
8665                 case 'q':
8666                         quiet = 1;
8667                         break;
8668                 case 'h':
8669                         human_readable = true;
8670                         break;
8671                 case LFS_POOL_OPT:
8672                         if ((!optarg) && (argv[optind] != NULL) &&
8673                                 (argv[optind][0] != '-') &&
8674                                 (argv[optind][0] != '/')) {
8675                                 optarg = argv[optind++];
8676                                 if (lfs_verify_poolarg(optarg)) {
8677                                         rc = -EINVAL;
8678                                         goto out;
8679                                 }
8680                                 strncpy(qctl->qc_poolname, optarg,
8681                                         LOV_MAXPOOLNAME);
8682                                 if (qctl->qc_cmd == LUSTRE_Q_GETINFO)
8683                                         qctl->qc_cmd = LUSTRE_Q_GETINFOPOOL;
8684                                 else
8685                                         qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
8686                                 break;
8687                         }
8688
8689                         /* optarg is NULL */
8690                         show_pools = true;
8691                         qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
8692                         break;
8693                 default:
8694                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
8695                                 progname, argv[optind - 1]);
8696                         rc = CMD_HELP;
8697                         goto out;
8698                 }
8699         }
8700
8701         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
8702         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8703              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8704              qctl->qc_type == ALLQUOTA &&
8705              optind == argc - 1 && !show_default) {
8706                 qctl->qc_idx = idx;
8707
8708                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
8709                         qctl->qc_type = qtype;
8710                         qctl->qc_valid = valid;
8711                         if (qtype == USRQUOTA) {
8712                                 qctl->qc_id = geteuid();
8713                                 rc = uid2name(&name, qctl->qc_id);
8714                         } else {
8715                                 qctl->qc_id = getegid();
8716                                 rc = gid2name(&name, qctl->qc_id);
8717                                 memset(&qctl->qc_dqblk, 0,
8718                                        sizeof(qctl->qc_dqblk));
8719                         }
8720                         if (rc)
8721                                 name = "<unknown>";
8722                         mnt = argv[optind];
8723                         rc1 = get_print_quota(mnt, name, qctl, verbose, quiet,
8724                                               human_readable, show_default);
8725                         if (rc1 && !rc)
8726                                 rc = rc1;
8727                 }
8728                 goto out;
8729         /* lfs quota -u username /path/to/lustre/mount */
8730         } else if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8731                    qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8732                 /* options should be followed by u/g-name and mntpoint */
8733                 if ((!show_default && optind + 2 != argc) ||
8734                     (show_default && optind + 1 != argc) ||
8735                     qctl->qc_type == ALLQUOTA) {
8736                         fprintf(stderr,
8737                                 "%s quota: name and mount point must be specified\n",
8738                                 progname);
8739                         rc = CMD_HELP;
8740                         goto out;
8741                 }
8742
8743                 if (!show_default) {
8744                         name = argv[optind++];
8745                         switch (qctl->qc_type) {
8746                         case USRQUOTA:
8747                                 rc = name2uid(&qctl->qc_id, name);
8748                                 break;
8749                         case GRPQUOTA:
8750                                 rc = name2gid(&qctl->qc_id, name);
8751                                 break;
8752                         case PRJQUOTA:
8753                                 rc = name2projid(&qctl->qc_id, name);
8754                                 break;
8755                         default:
8756                                 rc = -ENOTSUP;
8757                                 break;
8758                         }
8759                 } else {
8760                         qctl->qc_valid = QC_GENERAL;
8761                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ?
8762                                         LUSTRE_Q_GETDEFAULT_POOL :
8763                                         LUSTRE_Q_GETDEFAULT;
8764                         qctl->qc_id = 0;
8765                 }
8766
8767                 if (rc) {
8768                         if (str2quotaid(&qctl->qc_id, name)) {
8769                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
8770                                         progname, name);
8771                                 rc = CMD_HELP;
8772                                 goto out;
8773                         }
8774                 }
8775         } else if (optind + 1 != argc || qctl->qc_type == ALLQUOTA) {
8776                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
8777                         progname);
8778                 rc = CMD_HELP;
8779                 goto out;
8780         }
8781
8782         mnt = argv[optind];
8783         if (show_pools) {
8784                 char *p;
8785
8786                 i = 0;
8787                 rc = llapi_get_poolbuf(mnt, &buf, &poollist, &poolcount);
8788                 if (rc)
8789                         goto out;
8790
8791                 for (i = 0; i < poolcount; i++) {
8792                         p = memchr(poollist[i], '.', MAXNAMLEN);
8793                         if (!p) {
8794                                 fprintf(stderr, "bad string format %.*s\n",
8795                                         MAXNAMLEN, poollist[i]);
8796                                 rc = -EINVAL;
8797                                 goto out;
8798                         }
8799                         p++;
8800                         printf("Quotas for pool: %s\n", p);
8801                         strncpy(qctl->qc_poolname, p, LOV_MAXPOOLNAME);
8802                         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8803                                              human_readable, show_default);
8804                         if (rc)
8805                                 break;
8806                 }
8807                 goto out;
8808         }
8809
8810         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8811                              human_readable, show_default);
8812 out:
8813         free(buf);
8814         free(qctl);
8815         return rc;
8816 }
8817 #endif /* HAVE_SYS_QUOTA_H! */
8818
8819 static int flushctx_ioctl(char *mp)
8820 {
8821         int fd, rc;
8822
8823         fd = open(mp, O_RDONLY);
8824         if (fd == -1) {
8825                 fprintf(stderr, "flushctx: error open %s: %s\n",
8826                         mp, strerror(errno));
8827                 return -1;
8828         }
8829
8830         rc = ioctl(fd, LL_IOC_FLUSHCTX);
8831         if (rc == -1)
8832                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
8833                         mp, strerror(errno));
8834
8835         close(fd);
8836         return rc;
8837 }
8838
8839 static int lfs_flushctx(int argc, char **argv)
8840 {
8841         int     kdestroy = 0, reap = 0, c;
8842         char    mntdir[PATH_MAX] = {'\0'};
8843         int     index = 0;
8844         int     rc = 0;
8845
8846         while ((c = getopt(argc, argv, "kr")) != -1) {
8847                 switch (c) {
8848                 case 'k':
8849                         kdestroy = 1;
8850                         break;
8851                 case 'r':
8852                         reap = 1;
8853                         break;
8854                 default:
8855                         fprintf(stderr,
8856                                 "error: %s: option '-%c' unrecognized\n",
8857                                 argv[0], c);
8858                         return CMD_HELP;
8859                 }
8860         }
8861
8862         if (kdestroy) {
8863                 rc = system("kdestroy > /dev/null");
8864                 if (rc) {
8865                         rc = WEXITSTATUS(rc);
8866                         fprintf(stderr,
8867                                 "error destroying tickets: %d, continuing\n",
8868                                 rc);
8869                 }
8870         }
8871
8872         if (optind >= argc) {
8873                 /* flush for all mounted lustre fs. */
8874                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
8875                         /* Check if we have a mount point */
8876                         if (mntdir[0] == '\0')
8877                                 continue;
8878
8879                         if (flushctx_ioctl(mntdir))
8880                                 rc = -1;
8881
8882                         mntdir[0] = '\0'; /* avoid matching in next loop */
8883                 }
8884         } else {
8885                 /* flush fs as specified */
8886                 while (optind < argc) {
8887                         if (flushctx_ioctl(argv[optind++]))
8888                                 rc = -1;
8889                 }
8890         }
8891
8892         if (reap) {
8893                 rc = system("keyctl reap > /dev/null");
8894                 if (rc != 0) {
8895                         rc = WEXITSTATUS(rc);
8896                         fprintf(stderr, "error reaping keyring: %d\n", rc);
8897                 }
8898         }
8899
8900         return rc;
8901 }
8902
8903 static int lfs_changelog(int argc, char **argv)
8904 {
8905         void *changelog_priv;
8906         struct changelog_rec *rec;
8907         long long startrec = 0, endrec = 0;
8908         char *mdd;
8909         struct option long_opts[] = {
8910                 { .val = 'f', .name = "follow", .has_arg = no_argument },
8911                 { .name = NULL } };
8912         char short_opts[] = "f";
8913         int rc, follow = 0;
8914
8915         while ((rc = getopt_long(argc, argv, short_opts,
8916                 long_opts, NULL)) != -1) {
8917                 switch (rc) {
8918                 case 'f':
8919                         follow++;
8920                         break;
8921                 default:
8922                         fprintf(stderr,
8923                                 "%s changelog: unrecognized option '%s'\n",
8924                                 progname, argv[optind - 1]);
8925                         return CMD_HELP;
8926                 }
8927         }
8928         if (optind >= argc) {
8929                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
8930                         progname);
8931                 return CMD_HELP;
8932         }
8933
8934         mdd = argv[optind++];
8935         if (argc > optind) {
8936                 errno = 0;
8937                 startrec = strtoll(argv[optind++], NULL, 10);
8938                 if (errno != 0 || startrec < 0) {
8939                         fprintf(stderr,
8940                                 "%s changelog: bad startrec\n",
8941                                 progname);
8942                         return CMD_HELP;
8943                 }
8944         }
8945
8946         if (argc > optind) {
8947                 errno = 0;
8948                 endrec = strtoll(argv[optind++], NULL, 10);
8949                 if (errno != 0 || endrec < 0) {
8950                         fprintf(stderr,
8951                                 "%s changelog: bad endrec\n",
8952                                 progname);
8953                         return CMD_HELP;
8954                 }
8955         }
8956
8957         rc = llapi_changelog_start(&changelog_priv,
8958                                    CHANGELOG_FLAG_BLOCK |
8959                                    CHANGELOG_FLAG_JOBID |
8960                                    CHANGELOG_FLAG_EXTRA_FLAGS |
8961                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
8962                                    mdd, startrec);
8963         if (rc < 0) {
8964                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
8965                         progname, strerror(errno = -rc));
8966                 return rc;
8967         }
8968
8969         rc = llapi_changelog_set_xflags(changelog_priv,
8970                                         CHANGELOG_EXTRA_FLAG_UIDGID |
8971                                         CHANGELOG_EXTRA_FLAG_NID |
8972                                         CHANGELOG_EXTRA_FLAG_OMODE |
8973                                         CHANGELOG_EXTRA_FLAG_XATTR);
8974         if (rc < 0) {
8975                 fprintf(stderr,
8976                         "%s changelog: cannot set xflags for changelog: %s\n",
8977                         progname, strerror(errno = -rc));
8978                 return rc;
8979         }
8980
8981         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
8982                 time_t secs;
8983                 struct tm ts;
8984
8985                 if (endrec && rec->cr_index > endrec) {
8986                         llapi_changelog_free(&rec);
8987                         break;
8988                 }
8989                 if (rec->cr_index < startrec) {
8990                         llapi_changelog_free(&rec);
8991                         continue;
8992                 }
8993
8994                 secs = rec->cr_time >> 30;
8995                 gmtime_r(&secs, &ts);
8996                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
8997                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
8998                        changelog_type2str(rec->cr_type),
8999                        ts.tm_hour, ts.tm_min, ts.tm_sec,
9000                        (int)(rec->cr_time & ((1 << 30) - 1)),
9001                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
9002                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
9003
9004                 if (rec->cr_flags & CLF_JOBID) {
9005                         struct changelog_ext_jobid *jid =
9006                                 changelog_rec_jobid(rec);
9007
9008                         if (jid->cr_jobid[0] != '\0')
9009                                 printf(" j=%s", jid->cr_jobid);
9010                 }
9011
9012                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
9013                         struct changelog_ext_extra_flags *ef =
9014                                 changelog_rec_extra_flags(rec);
9015
9016                         printf(" ef=0x%llx",
9017                                (unsigned long long)ef->cr_extra_flags);
9018
9019                         if (ef->cr_extra_flags & CLFE_UIDGID) {
9020                                 struct changelog_ext_uidgid *uidgid =
9021                                         changelog_rec_uidgid(rec);
9022
9023                                 printf(" u=%llu:%llu",
9024                                        (unsigned long long)uidgid->cr_uid,
9025                                        (unsigned long long)uidgid->cr_gid);
9026                         }
9027                         if (ef->cr_extra_flags & CLFE_NID) {
9028                                 struct changelog_ext_nid *nid =
9029                                         changelog_rec_nid(rec);
9030
9031                                 printf(" nid=%s",
9032                                        libcfs_nid2str(nid->cr_nid));
9033                         }
9034
9035                         if (ef->cr_extra_flags & CLFE_OPEN) {
9036                                 struct changelog_ext_openmode *omd =
9037                                         changelog_rec_openmode(rec);
9038                                 char mode[] = "---";
9039
9040                                 /* exec mode must be exclusive */
9041                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
9042                                         mode[2] = 'x';
9043                                 } else {
9044                                         if (omd->cr_openflags & MDS_FMODE_READ)
9045                                                 mode[0] = 'r';
9046                                         if (omd->cr_openflags &
9047                                             (MDS_FMODE_WRITE |
9048                                              MDS_OPEN_TRUNC |
9049                                              MDS_OPEN_APPEND))
9050                                                 mode[1] = 'w';
9051                                 }
9052
9053                                 if (strcmp(mode, "---") != 0)
9054                                         printf(" m=%s", mode);
9055                         }
9056
9057                         if (ef->cr_extra_flags & CLFE_XATTR) {
9058                                 struct changelog_ext_xattr *xattr =
9059                                         changelog_rec_xattr(rec);
9060
9061                                 if (xattr->cr_xattr[0] != '\0')
9062                                         printf(" x=%s", xattr->cr_xattr);
9063                         }
9064                 }
9065
9066                 if (!fid_is_zero(&rec->cr_pfid))
9067                         printf(" p="DFID, PFID(&rec->cr_pfid));
9068                 if (rec->cr_namelen)
9069                         printf(" %.*s", rec->cr_namelen,
9070                                changelog_rec_name(rec));
9071
9072                 if (rec->cr_flags & CLF_RENAME) {
9073                         struct changelog_ext_rename *rnm =
9074                                 changelog_rec_rename(rec);
9075
9076                         if (!fid_is_zero(&rnm->cr_sfid))
9077                                 printf(" s="DFID" sp="DFID" %.*s",
9078                                        PFID(&rnm->cr_sfid),
9079                                        PFID(&rnm->cr_spfid),
9080                                        (int)changelog_rec_snamelen(rec),
9081                                        changelog_rec_sname(rec));
9082                 }
9083                 printf("\n");
9084
9085                 llapi_changelog_free(&rec);
9086         }
9087
9088         llapi_changelog_fini(&changelog_priv);
9089
9090         if (rc < 0)
9091                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
9092                         progname, strerror(errno = -rc));
9093
9094         return (rc == 1 ? 0 : rc);
9095 }
9096
9097 static int lfs_changelog_clear(int argc, char **argv)
9098 {
9099         long long endrec;
9100         int rc;
9101
9102         if (argc != 4)
9103                 return CMD_HELP;
9104
9105         errno = 0;
9106         endrec = strtoll(argv[3], NULL, 10);
9107         if (errno != 0 || endrec < 0) {
9108                 fprintf(stderr,
9109                         "%s: bad endrec '%s'\n",
9110                         argv[0], argv[3]);
9111                 return CMD_HELP;
9112         }
9113
9114         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
9115
9116         if (rc == -EINVAL)
9117                 fprintf(stderr, "%s: record out of range: %llu\n",
9118                         argv[0], endrec);
9119         else if (rc == -ENOENT)
9120                 fprintf(stderr, "%s: no changelog user: %s\n",
9121                         argv[0], argv[2]);
9122         else if (rc)
9123                 fprintf(stderr, "%s error: %s\n", argv[0],
9124                         strerror(-rc));
9125
9126         if (rc)
9127                 errno = -rc;
9128
9129         return rc;
9130 }
9131
9132 static void rstripc(char *str, int c)
9133 {
9134         char *end = str + strlen(str);
9135
9136         for (; str < end && end[-1] == c; --end)
9137                 end[-1] = '\0';
9138 }
9139
9140 static int lfs_fid2path(int argc, char **argv)
9141 {
9142         struct option long_opts[] = {
9143                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
9144                 { .val = 'c',   .name = "current",      .has_arg = no_argument },
9145                 { .val = 'c',   .name = "print-link",   .has_arg = no_argument },
9146                 { .val = 'f',   .name = "print-fid",    .has_arg = no_argument },
9147                 { .val = 'l',   .name = "link", .has_arg = required_argument },
9148                 { .name = NULL } };
9149         char short_opts[] = "cfl:pr:";
9150         bool print_link = false;
9151         bool print_fid = false;
9152         bool print_mnt_dir;
9153         char mnt_dir[PATH_MAX] = "";
9154         int mnt_fd = -1;
9155         char *path_or_fsname;
9156         long long recno = -1;
9157         int linkno = -1;
9158         char *endptr = NULL;
9159         int rc = 0;
9160         int c;
9161         int i;
9162
9163         while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
9164                 switch (c) {
9165                 case 'c':
9166                         print_link = true;
9167                         break;
9168                 case 'f':
9169                         print_fid = true;
9170                         break;
9171                 case 'l':
9172                         errno = 0;
9173                         linkno = strtol(optarg, &endptr, 10);
9174                         if (errno != 0 || *endptr != '\0' || linkno < 0) {
9175                                 fprintf(stderr,
9176                                         "%s fid2path: invalid linkno '%s'\n",
9177                                         progname, optarg);
9178                                 return CMD_HELP;
9179                         }
9180                         break;
9181                 case 'r':
9182                         /* recno is something to do with changelogs
9183                          * that was never implemented. We just pass it
9184                          * through for the MDT to ignore.
9185                          */
9186                         errno = 0;
9187                         recno = strtoll(optarg, &endptr, 10);
9188                         if (errno != 0 || *endptr != '\0' || recno < 0) {
9189                                 fprintf(stderr,
9190                                         "%s fid2path: invalid recno '%s'\n",
9191                                         progname, optarg);
9192                                 return CMD_HELP;
9193                         }
9194                         break;
9195                 default:
9196                         fprintf(stderr,
9197                                 "%s fid2path: unrecognized option '%s'\n",
9198                                 progname, argv[optind - 1]);
9199                         return CMD_HELP;
9200                 }
9201         }
9202
9203         if (argc - optind < 2) {
9204                 fprintf(stderr,
9205                         "Usage: %s fid2path FSNAME|ROOT FID...\n",
9206                         progname);
9207                 return CMD_HELP;
9208         }
9209
9210         path_or_fsname = argv[optind];
9211
9212         if (*path_or_fsname == '/') {
9213                 print_mnt_dir = true;
9214                 rc = llapi_search_mounts(path_or_fsname, 0, mnt_dir, NULL);
9215         } else {
9216                 print_mnt_dir = false;
9217                 rc = llapi_search_rootpath(mnt_dir, path_or_fsname);
9218         }
9219
9220         if (rc < 0) {
9221                 fprintf(stderr,
9222                         "%s fid2path: cannot resolve mount point for '%s': %s\n",
9223                         progname, path_or_fsname, strerror(-rc));
9224                 goto out;
9225         }
9226
9227         mnt_fd = open(mnt_dir, O_RDONLY | O_DIRECTORY);
9228         if (mnt_fd < 0) {
9229                 fprintf(stderr,
9230                         "%s fid2path: cannot open mount point for '%s': %s\n",
9231                         progname, path_or_fsname, strerror(-rc));
9232                 goto out;
9233         }
9234
9235         /* Strip trailing slashes from mnt_dir. */
9236         rstripc(mnt_dir + 1, '/');
9237
9238         for (i = optind + 1; i < argc; i++) {
9239                 const char *fid_str = argv[i];
9240                 struct lu_fid fid;
9241                 int rc2;
9242
9243                 rc2 = llapi_fid_parse(fid_str, &fid, NULL);
9244                 if (rc2 < 0) {
9245                         fprintf(stderr,
9246                                 "%s fid2path: invalid FID '%s'\n",
9247                                 progname, fid_str);
9248                         if (rc == 0)
9249                                 rc = rc2;
9250
9251                         continue;
9252                 }
9253
9254                 int linktmp = (linkno >= 0) ? linkno : 0;
9255                 while (1) {
9256                         int oldtmp = linktmp;
9257                         long long rectmp = recno;
9258                         char path_buf[PATH_MAX];
9259
9260                         rc2 = llapi_fid2path_at(mnt_fd, &fid,
9261                                 path_buf, sizeof(path_buf), &rectmp, &linktmp);
9262                         if (rc2 < 0) {
9263                                 fprintf(stderr,
9264                                         "%s fid2path: cannot find %s %s: %s\n",
9265                                         progname, path_or_fsname, fid_str,
9266                                         strerror(-rc2));
9267                                 if (rc == 0)
9268                                         rc = rc2;
9269                                 break;
9270                         }
9271
9272                         if (print_fid)
9273                                 printf("%s ", fid_str);
9274
9275                         if (print_link)
9276                                 printf("%d ", linktmp);
9277
9278                         /* You may think this looks wrong or weird (and it is!)
9279                          * but we are actually trying to preserve the old quirky
9280                          * behaviors (enforced by our old quirky tests!) that
9281                          * make lfs so much fun to work on:
9282                          *
9283                          *   lustre 0x200000007:0x1:0x0 => "/"
9284                          *   /mnt/lustre 0x200000007:0x1:0x0 => "/mnt/lustre//"
9285                          *
9286                          * Note that llapi_fid2path() returns "" for the root
9287                          * FID. */
9288
9289                         printf("%s%s%s\n",
9290                                print_mnt_dir ? mnt_dir : "",
9291                                (print_mnt_dir || *path_buf == '\0') ? "/" : "",
9292                                path_buf);
9293
9294                         if (linkno >= 0)
9295                                 /* specified linkno */
9296                                 break;
9297
9298                         if (oldtmp == linktmp)
9299                                 /* no more links */
9300                                 break;
9301                 }
9302         }
9303 out:
9304         if (!(mnt_fd < 0))
9305                 close(mnt_fd);
9306
9307         return rc;
9308 }
9309
9310 static int lfs_path2fid(int argc, char **argv)
9311 {
9312         struct option long_opts[] = {
9313                 { .val = 'p', .name = "parents", .has_arg = no_argument },
9314                 { .name = NULL } };
9315         char            **path;
9316         const char        short_opts[] = "p";
9317         const char       *sep = "";
9318         struct lu_fid     fid;
9319         int               rc = 0;
9320         bool              show_parents = false;
9321
9322         while ((rc = getopt_long(argc, argv, short_opts,
9323                                  long_opts, NULL)) != -1) {
9324                 switch (rc) {
9325                 case 'p':
9326                         show_parents = true;
9327                         break;
9328                 default:
9329                         fprintf(stderr,
9330                                 "%s path2fid: unrecognized option '%s'\n",
9331                                 progname, argv[optind - 1]);
9332                         return CMD_HELP;
9333                 }
9334         }
9335
9336         if (optind > argc - 1) {
9337                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
9338                         progname);
9339                 return CMD_HELP;
9340         } else if (optind < argc - 1) {
9341                 sep = ": ";
9342         }
9343
9344         rc = 0;
9345         for (path = argv + optind; *path != NULL; path++) {
9346                 int err = 0;
9347
9348                 if (!show_parents) {
9349                         err = llapi_path2fid(*path, &fid);
9350                         if (!err)
9351                                 printf("%s%s"DFID"\n",
9352                                        *sep != '\0' ? *path : "", sep,
9353                                        PFID(&fid));
9354                 } else {
9355                         char            name[NAME_MAX + 1];
9356                         unsigned int    linkno = 0;
9357
9358                         while ((err = llapi_path2parent(*path, linkno, &fid,
9359                                                 name, sizeof(name))) == 0) {
9360                                 if (*sep != '\0' && linkno == 0)
9361                                         printf("%s%s", *path, sep);
9362
9363                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
9364                                        PFID(&fid), name);
9365                                 linkno++;
9366                         }
9367
9368                         /* err == -ENODATA is end-of-loop */
9369                         if (linkno > 0 && err == -ENODATA) {
9370                                 printf("\n");
9371                                 err = 0;
9372                         }
9373                 }
9374
9375                 if (err) {
9376                         fprintf(stderr,
9377                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
9378                                 progname, show_parents ? "parent " : "", *path,
9379                                 strerror(-err));
9380                         if (rc == 0) {
9381                                 rc = err;
9382                                 errno = -err;
9383                         }
9384                 }
9385         }
9386
9387         return rc;
9388 }
9389
9390 #define MAX_ERRNO       4095
9391 #define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
9392
9393 static int lfs_rmfid_and_show_errors(const char *device, struct fid_array *fa)
9394 {
9395         int rc, rc2, k;
9396
9397         rc = llapi_rmfid(device, fa);
9398         if (rc < 0) {
9399                 fprintf(stderr, "%s rmfid: cannot remove FIDs: %s\n",
9400                         progname, strerror(-rc));
9401                 return rc;
9402         }
9403
9404         for (k = 0; k < fa->fa_nr; k++) {
9405                 rc2 = (__s32)fa->fa_fids[k].f_ver;
9406                 if (!IS_ERR_VALUE(rc2))
9407                         continue;
9408
9409                 if (rc == 0)
9410                         rc = rc2;
9411
9412                 fa->fa_fids[k].f_ver = 0;
9413                 fprintf(stderr, "%s rmfid: cannot remove "DFID": %s\n",
9414                         progname, PFID(&fa->fa_fids[k]), strerror(-rc2));
9415         }
9416
9417         return rc;
9418 }
9419
9420 static int lfs_rmfid(int argc, char **argv)
9421 {
9422         char *fidstr, *device;
9423         int rc = 0, rc2, nr;
9424         struct fid_array *fa;
9425
9426         if (optind > argc - 1) {
9427                 fprintf(stderr, "%s rmfid: missing dirname\n", progname);
9428                 return CMD_HELP;
9429         }
9430
9431         device = argv[optind++];
9432
9433         nr = argc - optind;
9434         fa = malloc(offsetof(struct fid_array, fa_fids[nr + 1]));
9435         if (!fa)
9436                 return -ENOMEM;
9437
9438         fa->fa_nr = 0;
9439         rc = 0;
9440         while (optind < argc) {
9441                 int found;
9442
9443                 fidstr = argv[optind++];
9444                 while (*fidstr == '[')
9445                         fidstr++;
9446                 found = sscanf(fidstr, SFID, RFID(&fa->fa_fids[fa->fa_nr]));
9447                 if (found != 3) {
9448                         fprintf(stderr, "unrecognized FID: %s\n",
9449                                 argv[optind - 1]);
9450                         exit(1);
9451                 }
9452                 fa->fa_nr++;
9453                 if (fa->fa_nr == OBD_MAX_FIDS_IN_ARRAY) {
9454                         /* start another batch */
9455                         rc2 = lfs_rmfid_and_show_errors(device, fa);
9456                         if (rc2 && !rc)
9457                                 rc = rc2;
9458                         fa->fa_nr = 0;
9459                 }
9460         }
9461         if (fa->fa_nr) {
9462                 rc2 = lfs_rmfid_and_show_errors(device, fa);
9463                 if (rc2 && !rc)
9464                         rc = rc2;
9465         }
9466
9467         return rc;
9468 }
9469
9470 static int lfs_data_version(int argc, char **argv)
9471 {
9472         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
9473         __u64 data_version;
9474         char *path;
9475         int fd;
9476         int rc;
9477         int c;
9478
9479         if (argc < 2) {
9480                 fprintf(stderr, "%s: FILE must be specified\n",
9481                         progname);
9482                 return CMD_HELP;
9483         }
9484
9485         while ((c = getopt(argc, argv, "hnrw")) != -1) {
9486                 switch (c) {
9487                 case 'n':
9488                         data_version_flags = 0;
9489                         break;
9490                 case 'r':
9491                         data_version_flags |= LL_DV_RD_FLUSH;
9492                         break;
9493                 case 'w':
9494                         data_version_flags |= LL_DV_WR_FLUSH;
9495                         break;
9496                 default:
9497                         fprintf(stderr,
9498                                 "%s data_version: unrecognized option '%s'\n",
9499                                 progname, argv[optind - 1]);
9500                         /* fallthrough */
9501                 case 'h':
9502                         return CMD_HELP;
9503                 }
9504         }
9505         if (optind == argc) {
9506                 fprintf(stderr, "%s data_version: FILE must be specified\n",
9507                         progname);
9508                 return CMD_HELP;
9509         }
9510
9511         path = argv[optind];
9512         fd = open(path, O_RDONLY);
9513         if (fd < 0) {
9514                 rc = -errno;
9515                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
9516                         progname, path, strerror(-rc));
9517                 return rc;
9518         }
9519
9520         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
9521         if (rc < 0)
9522                 fprintf(stderr,
9523                         "%s data_version: cannot get version for '%s': %s\n",
9524                         progname, path, strerror(-rc));
9525         else
9526                 printf("%ju" "\n", (uintmax_t)data_version);
9527
9528         close(fd);
9529         return rc;
9530 }
9531
9532 static int lfs_hsm_state(int argc, char **argv)
9533 {
9534         int rc;
9535         int i = 1;
9536         char *path;
9537         struct hsm_user_state hus;
9538
9539         if (argc < 2)
9540                 return CMD_HELP;
9541
9542         do {
9543                 path = argv[i];
9544
9545                 rc = llapi_hsm_state_get(path, &hus);
9546                 if (rc) {
9547                         fprintf(stderr, "can't get hsm state for %s: %s\n",
9548                                 path, strerror(errno = -rc));
9549                         return rc;
9550                 }
9551
9552                 /* Display path name and status flags */
9553                 printf("%s: (0x%08x)", path, hus.hus_states);
9554
9555                 if (hus.hus_states & HS_RELEASED)
9556                         printf(" released");
9557                 if (hus.hus_states & HS_EXISTS)
9558                         printf(" exists");
9559                 if (hus.hus_states & HS_DIRTY)
9560                         printf(" dirty");
9561                 if (hus.hus_states & HS_ARCHIVED)
9562                         printf(" archived");
9563                 /* Display user-settable flags */
9564                 if (hus.hus_states & HS_NORELEASE)
9565                         printf(" never_release");
9566                 if (hus.hus_states & HS_NOARCHIVE)
9567                         printf(" never_archive");
9568                 if (hus.hus_states & HS_LOST)
9569                         printf(" lost_from_hsm");
9570
9571                 if (hus.hus_archive_id != 0)
9572                         printf(", archive_id:%d", hus.hus_archive_id);
9573                 printf("\n");
9574
9575         } while (++i < argc);
9576
9577         return 0;
9578 }
9579
9580 #define LFS_HSM_SET   0
9581 #define LFS_HSM_CLEAR 1
9582
9583 /**
9584  * Generic function to set or clear HSM flags.
9585  * Used by hsm_set and hsm_clear.
9586  *
9587  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
9588  */
9589 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
9590 {
9591         struct option long_opts[] = {
9592         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
9593         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
9594         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
9595         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
9596         { .val = 'h',   .name = "help",         .has_arg = no_argument },
9597         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
9598         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
9599         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
9600         { .name = NULL } };
9601         __u64 mask = 0;
9602         int c, rc;
9603         char *path;
9604         __u32 archive_id = 0;
9605         char *end = NULL;
9606
9607         if (argc < 3)
9608                 return CMD_HELP;
9609
9610         while ((c = getopt_long(argc, argv, "aAdehi:lr",
9611                                 long_opts, NULL)) != -1) {
9612                 switch (c) {
9613                 case 'l':
9614                         mask |= HS_LOST;
9615                         break;
9616                 case 'a':
9617                         mask |= HS_NOARCHIVE;
9618                         break;
9619                 case 'A':
9620                         mask |= HS_ARCHIVED;
9621                         break;
9622                 case 'r':
9623                         mask |= HS_NORELEASE;
9624                         break;
9625                 case 'd':
9626                         mask |= HS_DIRTY;
9627                         break;
9628                 case 'e':
9629                         mask |= HS_EXISTS;
9630                         break;
9631                 case 'i':
9632                         errno = 0;
9633                         archive_id = strtol(optarg, &end, 10);
9634                         if (errno != 0 || *end != '\0' || archive_id < 0) {
9635                                 fprintf(stderr,
9636                                         "%s: invalid archive_id: '%s'\n",
9637                                         progname, end);
9638                                 return CMD_HELP;
9639                         }
9640                         break;
9641                 default:
9642                         fprintf(stderr, "%s: unrecognized option '%s'\n",
9643                                 progname, argv[optind - 1]);
9644                         /* fallthrough */
9645                 case 'h':
9646                         return CMD_HELP;
9647                 }
9648         }
9649
9650         /* User should have specified a flag */
9651         if (mask == 0)
9652                 return CMD_HELP;
9653
9654         while (optind < argc) {
9655                 path = argv[optind];
9656
9657                 /* If mode == 0, this means we apply the mask. */
9658                 if (mode == LFS_HSM_SET)
9659                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
9660                 else
9661                         rc = llapi_hsm_state_set(path, 0, mask, 0);
9662
9663                 if (rc != 0) {
9664                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
9665                                 path, strerror(errno = -rc));
9666                         return rc;
9667                 }
9668                 optind++;
9669         }
9670
9671         return 0;
9672 }
9673
9674 static int lfs_hsm_action(int argc, char **argv)
9675 {
9676         int                              rc;
9677         int                              i = 1;
9678         char                            *path;
9679         struct hsm_current_action        hca;
9680         struct hsm_extent                he;
9681         enum hsm_user_action             hua;
9682         enum hsm_progress_states         hps;
9683
9684         if (argc < 2)
9685                 return CMD_HELP;
9686
9687         do {
9688                 path = argv[i];
9689
9690                 rc = llapi_hsm_current_action(path, &hca);
9691                 if (rc) {
9692                         fprintf(stderr, "can't get hsm action for %s: %s\n",
9693                                 path, strerror(errno = -rc));
9694                         return rc;
9695                 }
9696                 he = hca.hca_location;
9697                 hua = hca.hca_action;
9698                 hps = hca.hca_state;
9699
9700                 printf("%s: %s", path, hsm_user_action2name(hua));
9701
9702                 /* Skip file without action */
9703                 if (hca.hca_action == HUA_NONE) {
9704                         printf("\n");
9705                         continue;
9706                 }
9707
9708                 printf(" %s ", hsm_progress_state2name(hps));
9709
9710                 if ((hps == HPS_RUNNING) &&
9711                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
9712                         printf("(%llu bytes moved)\n",
9713                                (unsigned long long)he.length);
9714                 else if ((he.offset + he.length) == LUSTRE_EOF)
9715                         printf("(from %llu to EOF)\n",
9716                                (unsigned long long)he.offset);
9717                 else
9718                         printf("(from %llu to %llu)\n",
9719                                (unsigned long long)he.offset,
9720                                (unsigned long long)(he.offset + he.length));
9721
9722         } while (++i < argc);
9723
9724         return 0;
9725 }
9726
9727 static int lfs_hsm_set(int argc, char **argv)
9728 {
9729         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
9730 }
9731
9732 static int lfs_hsm_clear(int argc, char **argv)
9733 {
9734         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
9735 }
9736
9737 /**
9738  * Check file state and return its fid, to be used by lfs_hsm_request().
9739  *
9740  * \param[in]     file      Path to file to check
9741  * \param[in,out] fid       Pointer to allocated lu_fid struct.
9742  * \param[in,out] last_dev  Pointer to last device id used.
9743  *
9744  * \return 0 on success.
9745  */
9746 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
9747                                 dev_t *last_dev)
9748 {
9749         struct stat     st;
9750         int             rc;
9751
9752         rc = lstat(file, &st);
9753         if (rc) {
9754                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
9755                 return -errno;
9756         }
9757         /*
9758          * Checking for regular file as archiving as posix copytool
9759          * rejects archiving files other than regular files
9760          */
9761         if (!S_ISREG(st.st_mode)) {
9762                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
9763                 return CMD_HELP;
9764         }
9765         /* A request should be ... */
9766         if (*last_dev != st.st_dev && *last_dev != 0) {
9767                 fprintf(stderr,
9768                         "All files should be on the same filesystem: %s\n",
9769                         file);
9770                 return -EINVAL;
9771         }
9772         *last_dev = st.st_dev;
9773
9774         rc = llapi_path2fid(file, fid);
9775         if (rc) {
9776                 fprintf(stderr, "Cannot read FID of %s: %s\n",
9777                         file, strerror(-rc));
9778                 return rc;
9779         }
9780         return 0;
9781 }
9782
9783 /* Fill an HSM HUR item with a given file name.
9784  *
9785  * If mntpath is set, then the filename is actually a FID, and no
9786  * lookup on the filesystem will be performed.
9787  *
9788  * \param[in]  hur         the user request to fill
9789  * \param[in]  idx         index of the item inside the HUR to fill
9790  * \param[in]  mntpath     mountpoint of Lustre
9791  * \param[in]  fname       filename (if mtnpath is NULL)
9792  *                         or FID (if mntpath is set)
9793  * \param[in]  last_dev    pointer to last device id used
9794  *
9795  * \retval 0 on success
9796  * \retval CMD_HELP or a negative errno on error
9797  */
9798 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
9799                          const char *mntpath, const char *fname,
9800                          dev_t *last_dev)
9801 {
9802         struct hsm_user_item *hui = &hur->hur_user_item[idx];
9803         int rc;
9804
9805         hui->hui_extent.length = -1;
9806
9807         if (mntpath) {
9808                 rc = llapi_fid_parse(fname, &hui->hui_fid, NULL);
9809                 if (rc)
9810                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
9811                                 fname);
9812         } else {
9813                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
9814         }
9815
9816         if (rc == 0)
9817                 hur->hur_request.hr_itemcount++;
9818
9819         return rc;
9820 }
9821
9822 static int lfs_hsm_request(int argc, char **argv, int action)
9823 {
9824         struct option long_opts[] = {
9825         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
9826         { .val = 'D',   .name = "data",         .has_arg = required_argument },
9827         { .val = 'h',   .name = "help",         .has_arg = no_argument },
9828         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
9829         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
9830         { .name = NULL } };
9831         dev_t last_dev = 0;
9832         struct hsm_user_request *hur, *oldhur;
9833         int c, i;
9834         size_t len;
9835         int nbfile;
9836         char *line = NULL;
9837         char *filelist = NULL;
9838         char fullpath[PATH_MAX];
9839         char *opaque = NULL;
9840         int opaque_len = 0;
9841         int archive_id = 0;
9842         FILE *fp;
9843         int nbfile_alloc = 0;
9844         char *some_file = NULL;
9845         char *mntpath = NULL;
9846         int rc;
9847
9848         if (argc < 2)
9849                 return CMD_HELP;
9850
9851         while ((c = getopt_long(argc, argv, "a:D:hl:m:",
9852                                 long_opts, NULL)) != -1) {
9853                 switch (c) {
9854                 case 'l':
9855                         filelist = optarg;
9856                         break;
9857                 case 'D':
9858                         opaque = optarg;
9859                         break;
9860                 case 'a':
9861                         if (action != HUA_ARCHIVE &&
9862                             action != HUA_REMOVE) {
9863                                 fprintf(stderr,
9864                                         "error: -a is supported only when archiving or removing\n");
9865                                 return CMD_HELP;
9866                         }
9867                         archive_id = atoi(optarg);
9868                         break;
9869                 case 'm':
9870                         if (!some_file) {
9871                                 mntpath = optarg;
9872                                 some_file = strdup(optarg);
9873                         }
9874                         break;
9875                 default:
9876                         fprintf(stderr, "%s: unrecognized option '%s'\n",
9877                                 progname, argv[optind - 1]);
9878                         /* fallthrough */
9879                 case 'h':
9880                         return CMD_HELP;
9881                 }
9882         }
9883
9884         /* All remaining args are files, so we have at least nbfile */
9885         nbfile = argc - optind;
9886
9887         if ((nbfile == 0) && (!filelist))
9888                 return CMD_HELP;
9889
9890         if (opaque)
9891                 opaque_len = strlen(opaque);
9892
9893         /*
9894          * Alloc the request structure with enough place to store all files
9895          * from command line.
9896          */
9897         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
9898         if (!hur) {
9899                 fprintf(stderr, "Cannot create the request: %s\n",
9900                         strerror(errno));
9901                 return errno;
9902         }
9903         nbfile_alloc = nbfile;
9904
9905         hur->hur_request.hr_action = action;
9906         hur->hur_request.hr_archive_id = archive_id;
9907         hur->hur_request.hr_flags = 0;
9908
9909         /* All remaining args are files, add them */
9910         if (nbfile != 0 && some_file == NULL)
9911                 some_file = strdup(argv[optind]);
9912
9913         for (i = 0; i < nbfile; i++) {
9914                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
9915                                    &last_dev);
9916                 if (rc)
9917                         goto out_free;
9918         }
9919
9920         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
9921
9922         /* If a filelist was specified, read the filelist from it. */
9923         if (filelist) {
9924                 fp = fopen(filelist, "r");
9925                 if (!fp) {
9926                         fprintf(stderr, "Cannot read the file list %s: %s\n",
9927                                 filelist, strerror(errno));
9928                         rc = -errno;
9929                         goto out_free;
9930                 }
9931
9932                 while ((rc = getline(&line, &len, fp)) != -1) {
9933                         /*
9934                          * If allocated buffer was too small, get something
9935                          * larger
9936                          */
9937                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
9938                                 ssize_t size;
9939
9940                                 nbfile_alloc = nbfile_alloc * 2 + 1;
9941                                 oldhur = hur;
9942                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
9943                                                                    opaque_len);
9944                                 if (!hur) {
9945                                         fprintf(stderr,
9946                                                 "hsm: cannot allocate the request: %s\n",
9947                                                 strerror(errno));
9948                                         hur = oldhur;
9949                                         rc = -errno;
9950                                         fclose(fp);
9951                                         goto out_free;
9952                                 }
9953                                 size = hur_len(oldhur);
9954                                 if (size < 0) {
9955                                         fprintf(stderr,
9956                                                 "hsm: cannot allocate %u files + %u bytes data\n",
9957                                                 oldhur->hur_request.hr_itemcount,
9958                                                 oldhur->hur_request.hr_data_len);
9959                                         free(hur);
9960                                         hur = oldhur;
9961                                         rc = -E2BIG;
9962                                         fclose(fp);
9963                                         goto out_free;
9964                                 }
9965                                 memcpy(hur, oldhur, size);
9966                                 free(oldhur);
9967                         }
9968
9969                         /* Chop CR */
9970                         if (line[strlen(line) - 1] == '\n')
9971                                 line[strlen(line) - 1] = '\0';
9972
9973                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
9974                                            mntpath, line, &last_dev);
9975                         if (rc) {
9976                                 fclose(fp);
9977                                 goto out_free;
9978                         }
9979
9980                         if (!some_file) {
9981                                 some_file = line;
9982                                 line = NULL;
9983                         }
9984                 }
9985
9986                 rc = fclose(fp);
9987                 free(line);
9988         }
9989
9990         /* If a --data was used, add it to the request */
9991         hur->hur_request.hr_data_len = opaque_len;
9992         if (opaque)
9993                 memcpy(hur_data(hur), opaque, opaque_len);
9994
9995         /* Send the HSM request */
9996         if (realpath(some_file, fullpath) == NULL) {
9997                 fprintf(stderr, "Could not find path '%s': %s\n",
9998                         some_file, strerror(errno));
9999         }
10000         rc = llapi_hsm_request(fullpath, hur);
10001         if (rc) {
10002                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
10003                         some_file, strerror(-rc));
10004                 goto out_free;
10005         }
10006
10007 out_free:
10008         free(some_file);
10009         free(hur);
10010         return rc;
10011 }
10012
10013 static int lfs_hsm_archive(int argc, char **argv)
10014 {
10015         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
10016 }
10017
10018 static int lfs_hsm_restore(int argc, char **argv)
10019 {
10020         return lfs_hsm_request(argc, argv, HUA_RESTORE);
10021 }
10022
10023 static int lfs_hsm_release(int argc, char **argv)
10024 {
10025         return lfs_hsm_request(argc, argv, HUA_RELEASE);
10026 }
10027
10028 static int lfs_hsm_remove(int argc, char **argv)
10029 {
10030         return lfs_hsm_request(argc, argv, HUA_REMOVE);
10031 }
10032
10033 static int lfs_hsm_cancel(int argc, char **argv)
10034 {
10035         return lfs_hsm_request(argc, argv, HUA_CANCEL);
10036 }
10037
10038 static int lfs_swap_layouts(int argc, char **argv)
10039 {
10040         if (argc != 3)
10041                 return CMD_HELP;
10042
10043         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
10044                                   SWAP_LAYOUTS_KEEP_MTIME |
10045                                   SWAP_LAYOUTS_KEEP_ATIME);
10046 }
10047
10048 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
10049
10050 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
10051
10052 int lfs_get_mode(const char *string)
10053 {
10054         enum lock_mode_user mode;
10055
10056         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
10057                 if (lock_mode_names[mode] == NULL)
10058                         continue;
10059                 if (strcasecmp(string, lock_mode_names[mode]) == 0)
10060                         return mode;
10061         }
10062
10063         return -EINVAL;
10064 }
10065
10066 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
10067 {
10068         enum lu_ladvise_type advice;
10069
10070         for (advice = 0;
10071              advice < ARRAY_SIZE(ladvise_names); advice++) {
10072                 if (ladvise_names[advice] == NULL)
10073                         continue;
10074                 if (strcmp(string, ladvise_names[advice]) == 0)
10075                         return advice;
10076         }
10077
10078         return LU_LADVISE_INVALID;
10079 }
10080
10081 static int lfs_ladvise(int argc, char **argv)
10082 {
10083         struct option long_opts[] = {
10084         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
10085         { .val = 'b',   .name = "background",   .has_arg = no_argument },
10086         { .val = 'e',   .name = "end",          .has_arg = required_argument },
10087         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10088         { .val = 'l',   .name = "length",       .has_arg = required_argument },
10089         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
10090         { .val = 's',   .name = "start",        .has_arg = required_argument },
10091         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
10092         { .name = NULL } };
10093         struct llapi_lu_ladvise advice;
10094         enum lu_ladvise_type advice_type = LU_LADVISE_INVALID;
10095         unsigned long long start = 0;
10096         unsigned long long end = LUSTRE_EOF;
10097         unsigned long long length = 0;
10098         unsigned long long size_units;
10099         unsigned long long flags = 0;
10100         int c, fd, rc = 0;
10101         const char *path;
10102         int mode = 0;
10103
10104         optind = 0;
10105         while ((c = getopt_long(argc, argv, "a:be:hl:m:s:u",
10106                                 long_opts, NULL)) != -1) {
10107                 switch (c) {
10108                 case 'a':
10109                         advice_type = lfs_get_ladvice(optarg);
10110                         if (advice_type == LU_LADVISE_INVALID) {
10111                                 fprintf(stderr,
10112                                         "%s: invalid advice type '%s'\n",
10113                                         progname, optarg);
10114                                 fprintf(stderr, "Valid types:");
10115
10116                                 for (advice_type = 0;
10117                                      advice_type < ARRAY_SIZE(ladvise_names);
10118                                      advice_type++) {
10119                                         if (ladvise_names[advice_type] == NULL)
10120                                                 continue;
10121                                         fprintf(stderr, " %s",
10122                                                 ladvise_names[advice_type]);
10123                                 }
10124                                 fprintf(stderr, "\n");
10125
10126                                 return CMD_HELP;
10127                         }
10128                         break;
10129                 case 'b':
10130                         flags |= LF_ASYNC;
10131                         break;
10132                 case 'u':
10133                         flags |= LF_UNSET;
10134                         break;
10135                 case 'e':
10136                         size_units = 1;
10137                         rc = llapi_parse_size(optarg, &end,
10138                                               &size_units, 0);
10139                         if (rc) {
10140                                 fprintf(stderr, "%s: bad end offset '%s'\n",
10141                                         argv[0], optarg);
10142                                 return CMD_HELP;
10143                         }
10144                         break;
10145                 case 's':
10146                         size_units = 1;
10147                         rc = llapi_parse_size(optarg, &start,
10148                                               &size_units, 0);
10149                         if (rc) {
10150                                 fprintf(stderr,
10151                                         "%s: bad start offset '%s'\n",
10152                                         argv[0], optarg);
10153                                 return CMD_HELP;
10154                         }
10155                         break;
10156                 case 'l':
10157                         size_units = 1;
10158                         rc = llapi_parse_size(optarg, &length,
10159                                               &size_units, 0);
10160                         if (rc) {
10161                                 fprintf(stderr, "%s: bad length '%s'\n",
10162                                         argv[0], optarg);
10163                                 return CMD_HELP;
10164                         }
10165                         break;
10166                 case 'm':
10167                         mode = lfs_get_mode(optarg);
10168                         if (mode < 0) {
10169                                 fprintf(stderr,
10170                                         "%s: bad mode '%s', valid modes are READ or WRITE\n",
10171                                         argv[0], optarg);
10172                                 return CMD_HELP;
10173                         }
10174                         break;
10175                 default:
10176                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10177                                 progname, argv[optind - 1]);
10178                         /* fallthrough */
10179                 case 'h':
10180                         return CMD_HELP;
10181                 }
10182         }
10183
10184         if (advice_type == LU_LADVISE_INVALID) {
10185                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
10186                 fprintf(stderr, "Valid types:");
10187                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
10188                      advice_type++) {
10189                         if (ladvise_names[advice_type] == NULL)
10190                                 continue;
10191                         fprintf(stderr, " %s", ladvise_names[advice_type]);
10192                 }
10193                 fprintf(stderr, "\n");
10194                 return CMD_HELP;
10195         }
10196
10197         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
10198                 fprintf(stderr,
10199                         "%s: Lock no expand advice is a per file descriptor advice, so when called from lfs, it does nothing.\n",
10200                         argv[0]);
10201                 return CMD_HELP;
10202         }
10203
10204         if (argc <= optind) {
10205                 fprintf(stderr, "%s: please give one or more file names\n",
10206                         argv[0]);
10207                 return CMD_HELP;
10208         }
10209
10210         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
10211                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
10212                         argv[0]);
10213                 return CMD_HELP;
10214         }
10215
10216         if (end == LUSTRE_EOF && length != 0)
10217                 end = start + length;
10218
10219         if (end <= start) {
10220                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
10221                         argv[0], start, end);
10222                 return CMD_HELP;
10223         }
10224
10225         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
10226                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
10227                         argv[0]);
10228                 return CMD_HELP;
10229         }
10230
10231         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
10232                 fprintf(stderr, "%s: mode is required with lockahead\n",
10233                         argv[0]);
10234                 return CMD_HELP;
10235         }
10236
10237         while (optind < argc) {
10238                 int rc2;
10239
10240                 path = argv[optind++];
10241
10242                 fd = open(path, O_RDONLY);
10243                 if (fd < 0) {
10244                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10245                                 argv[0], path, strerror(errno));
10246                         rc2 = -errno;
10247                         goto next;
10248                 }
10249
10250                 advice.lla_start = start;
10251                 advice.lla_end = end;
10252                 advice.lla_advice = advice_type;
10253                 advice.lla_value1 = 0;
10254                 advice.lla_value2 = 0;
10255                 advice.lla_value3 = 0;
10256                 advice.lla_value4 = 0;
10257                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
10258                         advice.lla_lockahead_mode = mode;
10259                         advice.lla_peradvice_flags = flags;
10260                 }
10261
10262                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
10263                 close(fd);
10264                 if (rc2 < 0) {
10265                         fprintf(stderr,
10266                                 "%s: cannot give advice '%s' to file '%s': %s\n",
10267                                 argv[0], ladvise_names[advice_type],
10268                                 path, strerror(errno));
10269
10270                         goto next;
10271                 }
10272
10273 next:
10274                 if (rc == 0 && rc2 < 0)
10275                         rc = rc2;
10276         }
10277         return rc;
10278 }
10279
10280 static const char *const heat_names[] = LU_HEAT_NAMES;
10281
10282 static int lfs_heat_get(int argc, char **argv)
10283 {
10284         struct lu_heat *heat;
10285         int rc = 0, rc2;
10286         char *path;
10287         int fd;
10288         int i;
10289
10290         if (argc <= 1)
10291                 return CMD_HELP;
10292
10293         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
10294         if (!heat) {
10295                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
10296                 return -ENOMEM;
10297         }
10298
10299         optind = 1;
10300         while (optind < argc) {
10301                 path = argv[optind++];
10302
10303                 fd = open(path, O_RDONLY);
10304                 if (fd < 0) {
10305                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10306                                 argv[0], path, strerror(errno));
10307                         rc2 = -errno;
10308                         goto next;
10309                 }
10310
10311                 heat->lh_count = OBD_HEAT_COUNT;
10312                 rc2 = llapi_heat_get(fd, heat);
10313                 close(fd);
10314                 if (rc2 < 0) {
10315                         fprintf(stderr,
10316                                 "%s: cannot get heat of file '%s': %s\n",
10317                                 argv[0], path, strerror(errno));
10318                         goto next;
10319                 }
10320
10321                 printf("flags: %x\n", heat->lh_flags);
10322                 for (i = 0; i < heat->lh_count; i++)
10323                         printf("%s: %llu\n", heat_names[i],
10324                                (unsigned long long)heat->lh_heat[i]);
10325 next:
10326                 if (rc == 0 && rc2 < 0)
10327                         rc = rc2;
10328         }
10329
10330         free(heat);
10331         return rc;
10332 }
10333
10334 static int lfs_heat_set(int argc, char **argv)
10335 {
10336         struct option long_opts[] = {
10337         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
10338         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10339         { .val = 'o',   .name = "off",          .has_arg = no_argument },
10340         { .val = 'O',   .name = "on",           .has_arg = no_argument },
10341         { .name = NULL } };
10342         enum lu_heat_flag flags = 0;
10343         int rc = 0, rc2;
10344         char *path;
10345         int fd;
10346         int c;
10347
10348         if (argc <= 1)
10349                 return CMD_HELP;
10350
10351         optind = 0;
10352         while ((c = getopt_long(argc, argv, "choO", long_opts, NULL)) != -1) {
10353                 switch (c) {
10354                 case 'c':
10355                         flags |= LU_HEAT_FLAG_CLEAR;
10356                         break;
10357                 case 'o':
10358                         flags |= LU_HEAT_FLAG_CLEAR;
10359                         flags |= LU_HEAT_FLAG_OFF;
10360                         break;
10361                 case 'O':
10362                         flags &= ~LU_HEAT_FLAG_OFF;
10363                         break;
10364                 default:
10365                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10366                                 progname, argv[optind - 1]);
10367                         /* fallthrough */
10368                 case 'h':
10369                         return CMD_HELP;
10370                 }
10371         }
10372
10373         if (argc <= optind) {
10374                 fprintf(stderr, "%s: please give one or more file names\n",
10375                         argv[0]);
10376                 return CMD_HELP;
10377         }
10378
10379         while (optind < argc) {
10380                 path = argv[optind++];
10381
10382                 fd = open(path, O_RDONLY);
10383                 if (fd < 0) {
10384                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10385                                 argv[0], path, strerror(errno));
10386                         rc2 = -errno;
10387                         goto next;
10388                 }
10389
10390                 rc2 = llapi_heat_set(fd, flags);
10391                 close(fd);
10392                 if (rc2 < 0) {
10393                         fprintf(stderr,
10394                                 "%s: cannot setflags heat of file '%s': %s\n",
10395                                 argv[0], path, strerror(errno));
10396                         goto next;
10397                 }
10398 next:
10399                 if (rc == 0 && rc2 < 0)
10400                         rc = rc2;
10401         }
10402         return rc;
10403 }
10404
10405 /**
10406  * The input string contains a comma delimited list of component ids and
10407  * ranges, for example "1,2-4,7".
10408  */
10409 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
10410 {
10411         bool end_of_loop = false;
10412         char *ptr = NULL;
10413         int nr = 0;
10414         int rc;
10415
10416         if (!arg)
10417                 return -EINVAL;
10418
10419         while (!end_of_loop) {
10420                 int start_index;
10421                 int end_index;
10422                 int i;
10423                 char *endptr = NULL;
10424
10425                 rc = -EINVAL;
10426                 ptr = strchrnul(arg, ',');
10427                 end_of_loop = *ptr == '\0';
10428                 *ptr = '\0';
10429
10430                 start_index = strtol(arg, &endptr, 0);
10431                 if (endptr == arg) /* no data at all */
10432                         break;
10433                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
10434                         break;
10435                 if (start_index < 0)
10436                         break;
10437
10438                 end_index = start_index;
10439                 if (*endptr == '-') {
10440                         end_index = strtol(endptr + 1, &endptr, 0);
10441                         if (*endptr != '\0')
10442                                 break;
10443                         if (end_index < start_index)
10444                                 break;
10445                 }
10446
10447                 for (i = start_index; i <= end_index && size > 0; i++) {
10448                         int j;
10449
10450                         /* remove duplicate */
10451                         for (j = 0; j < nr; j++) {
10452                                 if (ids[j] == i)
10453                                         break;
10454                         }
10455                         if (j == nr) { /* no duplicate */
10456                                 ids[nr++] = i;
10457                                 --size;
10458                         }
10459                 }
10460
10461                 if (size == 0 && i < end_index)
10462                         break;
10463
10464                 *ptr = ',';
10465                 arg = ++ptr;
10466                 rc = 0;
10467         }
10468         if (!end_of_loop && ptr)
10469                 *ptr = ',';
10470
10471         return rc < 0 ? rc : nr;
10472 }
10473
10474 /**
10475  * struct verify_mirror_id - Mirror id to be verified.
10476  * @mirror_id:   A specified mirror id.
10477  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
10478  */
10479 struct verify_mirror_id {
10480         __u16 mirror_id;
10481         bool is_valid_id;
10482 };
10483
10484 /**
10485  * compare_mirror_ids() - Compare mirror ids.
10486  * @layout: Mirror component list.
10487  * @cbdata: Callback data in verify_mirror_id structure.
10488  *
10489  * This is a callback function called by llapi_layout_comp_iterate()
10490  * to compare the specified mirror id with the one in the current
10491  * component of @layout. If they are the same, then the specified
10492  * mirror id is valid.
10493  *
10494  * Return: a negative error code on failure or
10495  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
10496  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
10497  */
10498 static inline
10499 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
10500 {
10501         struct verify_mirror_id *mirror_id_cbdata =
10502                                  (struct verify_mirror_id *)cbdata;
10503         uint32_t mirror_id;
10504         int rc = 0;
10505
10506         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
10507         if (rc < 0) {
10508                 rc = -errno;
10509                 fprintf(stderr,
10510                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
10511                         progname, strerror(errno));
10512                 return rc;
10513         }
10514
10515         if (mirror_id_cbdata->mirror_id == mirror_id) {
10516                 mirror_id_cbdata->is_valid_id = true;
10517                 return LLAPI_LAYOUT_ITER_STOP;
10518         }
10519
10520         return LLAPI_LAYOUT_ITER_CONT;
10521 }
10522
10523 /**
10524  * verify_mirror_ids() - Verify specified mirror ids.
10525  * @fname:      Mirrored file name.
10526  * @mirror_ids: Specified mirror ids to be verified.
10527  * @ids_nr:     Number of specified mirror ids.
10528  *
10529  * This function verifies that specified @mirror_ids are valid
10530  * in the mirrored file @fname.
10531  *
10532  * Return: 0 on success or a negative error code on failure.
10533  */
10534 static inline
10535 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
10536 {
10537         struct llapi_layout *layout = NULL;
10538         struct verify_mirror_id mirror_id_cbdata = { 0 };
10539         struct stat stbuf;
10540         uint32_t flr_state;
10541         int i;
10542         int fd;
10543         int rc = 0;
10544         int rc2 = 0;
10545
10546         if (ids_nr <= 0)
10547                 return -EINVAL;
10548
10549         if (stat(fname, &stbuf) < 0) {
10550                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10551                         progname, fname, strerror(errno));
10552                 rc = -errno;
10553                 goto error;
10554         }
10555
10556         if (!S_ISREG(stbuf.st_mode)) {
10557                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10558                         progname, fname);
10559                 rc = -EINVAL;
10560                 goto error;
10561         }
10562
10563         fd = open(fname, O_DIRECT | O_RDONLY);
10564         if (fd < 0) {
10565                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10566                         progname, fname, strerror(errno));
10567                 rc = -errno;
10568                 goto error;
10569         }
10570
10571         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10572         if (rc < 0) {
10573                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10574                         progname, fname, strerror(errno));
10575                 goto close_fd;
10576         }
10577
10578         layout = llapi_layout_get_by_fd(fd, 0);
10579         if (!layout) {
10580                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10581                         progname, fname, strerror(errno));
10582                 rc = -errno;
10583                 llapi_lease_release(fd);
10584                 goto close_fd;
10585         }
10586
10587         rc = llapi_layout_flags_get(layout, &flr_state);
10588         if (rc < 0) {
10589                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10590                         progname, fname, strerror(errno));
10591                 rc = -errno;
10592                 goto free_layout;
10593         }
10594
10595         flr_state &= LCM_FL_FLR_MASK;
10596         switch (flr_state) {
10597         case LCM_FL_NONE:
10598                 rc = -EINVAL;
10599                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10600                         progname, fname, llapi_layout_flags_string(flr_state));
10601                 goto free_layout;
10602         default:
10603                 break;
10604         }
10605
10606         rc2 = 0;
10607         for (i = 0; i < ids_nr; i++) {
10608                 mirror_id_cbdata.mirror_id = mirror_ids[i];
10609                 mirror_id_cbdata.is_valid_id = false;
10610
10611                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
10612                                                &mirror_id_cbdata);
10613                 if (rc < 0) {
10614                         rc = -errno;
10615                         fprintf(stderr,
10616                                 "%s: '%s' failed to verify mirror id: %u.\n",
10617                                 progname, fname, mirror_ids[i]);
10618                         goto free_layout;
10619                 }
10620
10621                 if (!mirror_id_cbdata.is_valid_id) {
10622                         rc2 = -EINVAL;
10623                         fprintf(stderr,
10624                                 "%s: '%s' invalid specified mirror id: %u.\n",
10625                                 progname, fname, mirror_ids[i]);
10626                 }
10627         }
10628         rc = rc2;
10629
10630 free_layout:
10631         llapi_layout_free(layout);
10632         llapi_lease_release(fd);
10633 close_fd:
10634         close(fd);
10635 error:
10636         return rc;
10637 }
10638
10639 static inline
10640 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
10641                            __u16 *mirror_ids, int ids_nr)
10642 {
10643         struct llapi_resync_comp comp_array[1024] = { { 0 } };
10644         struct llapi_layout *layout;
10645         struct stat stbuf;
10646         uint32_t flr_state;
10647         uint64_t start;
10648         uint64_t end;
10649         int comp_size = 0;
10650         int idx;
10651         int fd;
10652         int rc;
10653         int rc2;
10654
10655         if (stat(fname, &stbuf) < 0) {
10656                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10657                         progname, fname, strerror(errno));
10658                 rc = -errno;
10659                 goto error;
10660         }
10661         if (!S_ISREG(stbuf.st_mode)) {
10662                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10663                         progname, fname);
10664                 rc = -EINVAL;
10665                 goto error;
10666         }
10667
10668         fd = open(fname, O_DIRECT | O_RDWR);
10669         if (fd < 0) {
10670                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10671                         progname, fname, strerror(errno));
10672                 rc = -errno;
10673                 goto error;
10674         }
10675
10676         layout = llapi_layout_get_by_fd(fd, 0);
10677         if (!layout) {
10678                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10679                         progname, fname, strerror(errno));
10680                 rc = -errno;
10681                 goto close_fd;
10682         }
10683
10684         rc = llapi_layout_flags_get(layout, &flr_state);
10685         if (rc) {
10686                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10687                         progname, fname, strerror(errno));
10688                 rc = -errno;
10689                 goto free_layout;
10690         }
10691
10692         flr_state &= LCM_FL_FLR_MASK;
10693         if (flr_state == LCM_FL_NONE) {
10694                 rc = -EINVAL;
10695                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
10696                         progname, fname);
10697                 goto free_layout;
10698         }
10699
10700         /* get stale component info */
10701         comp_size = llapi_mirror_find_stale(layout, comp_array,
10702                                             ARRAY_SIZE(comp_array),
10703                                             mirror_ids, ids_nr);
10704         if (comp_size <= 0) {
10705                 rc = comp_size;
10706                 goto free_layout;
10707         }
10708
10709         ioc->lil_mode = LL_LEASE_WRLCK;
10710         ioc->lil_flags = LL_LEASE_RESYNC;
10711         rc = llapi_lease_set(fd, ioc);
10712         if (rc < 0) {
10713                 if (rc == -EALREADY)
10714                         rc = 0;
10715                 else
10716                         fprintf(stderr,
10717                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
10718                                 progname, fname, strerror(-rc));
10719                 goto free_layout;
10720         }
10721
10722         /* get the read range [start, end) */
10723         start = comp_array[0].lrc_start;
10724         end = comp_array[0].lrc_end;
10725         for (idx = 1; idx < comp_size; idx++) {
10726                 if (comp_array[idx].lrc_start < start)
10727                         start = comp_array[idx].lrc_start;
10728                 if (end < comp_array[idx].lrc_end)
10729                         end = comp_array[idx].lrc_end;
10730         }
10731
10732         rc = llapi_lease_check(fd);
10733         if (rc != LL_LEASE_WRLCK) {
10734                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
10735                         progname, fname);
10736                 goto free_layout;
10737         }
10738
10739         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
10740                                       start, end);
10741         if (rc < 0)
10742                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %s.\n",
10743                         progname, fname, strerror(-rc));
10744
10745         rc = migrate_set_timestamps(fd, &stbuf);
10746         if (rc < 0) {
10747                 fprintf(stderr, "%s: '%s' cannot set timestamps: %s\n",
10748                         progname, fname, strerror(-rc));
10749                 goto free_layout;
10750         }
10751
10752         /* need to do the lease unlock even resync fails */
10753         ioc->lil_mode = LL_LEASE_UNLCK;
10754         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10755         ioc->lil_count = 0;
10756         for (idx = 0; idx < comp_size; idx++) {
10757                 if (comp_array[idx].lrc_synced) {
10758                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
10759                         ioc->lil_count++;
10760                 }
10761         }
10762
10763         rc2 = llapi_lease_set(fd, ioc);
10764         /**
10765          * llapi_lease_set returns lease mode when it request to unlock
10766          * the lease lock.
10767          */
10768         if (rc2 <= 0) {
10769                 /* rc2 == 0 means lost lease lock */
10770                 if (rc2 == 0 && rc == 0)
10771                         rc = -EBUSY;
10772                 else
10773                         rc = rc2;
10774                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
10775                         progname, fname,
10776                         rc2 == 0 ? "lost lease lock" : strerror(-rc2));
10777
10778                 llapi_lease_release(fd);
10779                 goto free_layout;
10780         }
10781
10782 free_layout:
10783         llapi_layout_free(layout);
10784 close_fd:
10785         close(fd);
10786 error:
10787         return rc;
10788 }
10789
10790 static inline int lfs_mirror_resync(int argc, char **argv)
10791 {
10792         struct option long_opts[] = {
10793         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10794         { .val = 'o',   .name = "only",         .has_arg = required_argument },
10795         { .name = NULL } };
10796         struct ll_ioc_lease *ioc = NULL;
10797         __u16 mirror_ids[128] = { 0 };
10798         int ids_nr = 0;
10799         int c;
10800         int rc = 0;
10801
10802         while ((c = getopt_long(argc, argv, "ho:", long_opts, NULL)) >= 0) {
10803                 switch (c) {
10804                 case 'o':
10805                         rc = parse_mirror_ids(mirror_ids,
10806                                         sizeof(mirror_ids) / sizeof(__u16),
10807                                         optarg);
10808                         if (rc < 0) {
10809                                 fprintf(stderr,
10810                                         "%s: bad mirror ids '%s'.\n",
10811                                         argv[0], optarg);
10812                                 goto error;
10813                         }
10814                         ids_nr = rc;
10815                         break;
10816                 default:
10817                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10818                                 progname, argv[optind - 1]);
10819                         /* fallthrough */
10820                 case 'h':
10821                         rc = CMD_HELP;
10822                         goto error;
10823                 }
10824         }
10825
10826         if (argc == optind) {
10827                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
10828                 rc = CMD_HELP;
10829                 goto error;
10830         }
10831
10832         if (ids_nr > 0 && argc > optind + 1) {
10833                 fprintf(stderr,
10834                     "%s: option '--only' cannot be used upon multiple files.\n",
10835                         argv[0]);
10836                 rc = CMD_HELP;
10837                 goto error;
10838         }
10839
10840         if (ids_nr > 0) {
10841                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
10842                 if (rc < 0)
10843                         goto error;
10844         }
10845
10846         /* set the lease on the file */
10847         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
10848         if (!ioc) {
10849                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
10850                         argv[0], strerror(errno));
10851                 rc = -errno;
10852                 goto error;
10853         }
10854
10855         for (; optind < argc; optind++) {
10856                 rc = lfs_mirror_resync_file(argv[optind], ioc,
10857                                             mirror_ids, ids_nr);
10858                 /* ignore previous file's error, continue with next file */
10859
10860                 /* reset ioc */
10861                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
10862         }
10863
10864         free(ioc);
10865 error:
10866         return rc;
10867 }
10868
10869 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
10870 {
10871         struct llapi_layout *layout;
10872         int rc;
10873
10874         layout = llapi_layout_get_by_fd(fd, 0);
10875         if (!layout) {
10876                 fprintf(stderr, "could not get layout.\n");
10877                 return  -EINVAL;
10878         }
10879
10880         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
10881         if (rc < 0) {
10882                 fprintf(stderr, "failed to iterate layout\n");
10883                 llapi_layout_free(layout);
10884
10885                 return rc;
10886         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
10887                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
10888                 llapi_layout_free(layout);
10889
10890                 return -EINVAL;
10891         }
10892         llapi_layout_free(layout);
10893
10894         return 0;
10895 }
10896
10897 /**
10898  * Check whether two files are the same file
10899  * \retval      0  same file
10900  * \retval      1  not the same file
10901  * \retval      <0 error code
10902  */
10903 static inline int check_same_file(int fd, const char *f2)
10904 {
10905         struct stat stbuf1;
10906         struct stat stbuf2;
10907
10908         if (fstat(fd, &stbuf1) < 0)
10909                 return -errno;
10910
10911         if (stat(f2, &stbuf2) < 0)
10912                 return 1;
10913
10914         if (stbuf1.st_rdev == stbuf2.st_rdev &&
10915             stbuf1.st_ino == stbuf2.st_ino)
10916                 return 0;
10917
10918         return 1;
10919 }
10920
10921 static inline int lfs_mirror_read(int argc, char **argv)
10922 {
10923         int rc = CMD_HELP;
10924         __u16 mirror_id = 0;
10925         const char *outfile = NULL;
10926         char *fname;
10927         int fd = 0;
10928         int outfd;
10929         int c;
10930         void *buf;
10931         const size_t buflen = 4 << 20;
10932         off_t pos;
10933         struct option long_opts[] = {
10934         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10935         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
10936         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
10937         { .name = NULL } };
10938
10939         while ((c = getopt_long(argc, argv, "hN:o:", long_opts, NULL)) >= 0) {
10940                 char *end;
10941
10942                 switch (c) {
10943                 case 'N': {
10944                         unsigned long int id;
10945
10946                         errno = 0;
10947                         id = strtoul(optarg, &end, 0);
10948                         if (errno != 0 || *end != '\0' || id == 0 ||
10949                             id > UINT16_MAX) {
10950                                 fprintf(stderr,
10951                                         "%s %s: invalid mirror ID '%s'\n",
10952                                         progname, argv[0], optarg);
10953                                 return rc;
10954                         }
10955
10956                         mirror_id = (__u16)id;
10957                         break;
10958                 }
10959                 case 'o':
10960                         outfile = optarg;
10961                         break;
10962                 default:
10963                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10964                                 progname, argv[optind - 1]);
10965                         /* fallthrough */
10966                 case 'h':
10967                         return CMD_HELP;
10968                 }
10969         }
10970
10971         if (argc == optind) {
10972                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10973                         progname, argv[0]);
10974                 return rc;
10975         } else if (argc > optind + 1) {
10976                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10977                 return rc;
10978         }
10979
10980         if (mirror_id == 0) {
10981                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
10982                         progname, argv[0]);
10983                 return rc;
10984         }
10985
10986         /* open mirror file */
10987         fname = argv[optind];
10988         fd = open(fname, O_DIRECT | O_RDONLY);
10989         if (fd < 0) {
10990                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
10991                         progname, argv[0], fname, strerror(errno));
10992                 return rc;
10993         }
10994
10995         /* verify mirror id */
10996         rc = verify_mirror_id_by_fd(fd, mirror_id);
10997         if (rc) {
10998                 fprintf(stderr,
10999                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11000                         progname, argv[0], mirror_id, fname);
11001                 goto close_fd;
11002         }
11003
11004         /* open output file - O_EXCL ensures output is not the same as input */
11005         if (outfile) {
11006                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
11007                 if (outfd < 0) {
11008                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
11009                                 progname, argv[0], outfile, strerror(errno));
11010                         rc = -errno;
11011                         goto close_fd;
11012                 }
11013         } else {
11014                 outfd = STDOUT_FILENO;
11015         }
11016
11017         /* allocate buffer */
11018         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
11019         if (rc) {
11020                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
11021                                 progname, argv[0], rc);
11022                 goto close_outfd;
11023         }
11024
11025         pos = 0;
11026         while (1) {
11027                 ssize_t bytes_read;
11028                 ssize_t written = 0;
11029
11030                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
11031                 if (bytes_read < 0) {
11032                         rc = bytes_read;
11033                         fprintf(stderr,
11034                                 "%s %s: fail to read data from mirror %u: %s\n",
11035                                 progname, argv[0], mirror_id, strerror(-rc));
11036                         goto free_buf;
11037                 }
11038
11039                 /* EOF reached */
11040                 if (bytes_read == 0)
11041                         break;
11042
11043                 while (written < bytes_read) {
11044                         ssize_t written2;
11045
11046                         written2 = write(outfd, buf + written,
11047                                          bytes_read - written);
11048                         if (written2 < 0) {
11049                                 fprintf(stderr,
11050                                         "%s %s: fail to write %s: %s\n",
11051                                         progname, argv[0], outfile ? : "STDOUT",
11052                                         strerror(errno));
11053                                 rc = -errno;
11054                                 goto free_buf;
11055                         }
11056                         written += written2;
11057                 }
11058
11059                 if (written != bytes_read) {
11060                         fprintf(stderr,
11061                 "%s %s: written %ld bytes does not match with %ld read.\n",
11062                                 progname, argv[0], written, bytes_read);
11063                         rc = -EIO;
11064                         goto free_buf;
11065                 }
11066
11067                 pos += bytes_read;
11068         }
11069
11070         fsync(outfd);
11071         rc = 0;
11072
11073 free_buf:
11074         free(buf);
11075 close_outfd:
11076         if (outfile)
11077                 close(outfd);
11078 close_fd:
11079         close(fd);
11080
11081         return rc;
11082 }
11083
11084 static inline int lfs_mirror_write(int argc, char **argv)
11085 {
11086         int rc = CMD_HELP;
11087         __u16 mirror_id = 0;
11088         const char *inputfile = NULL;
11089         char *fname;
11090         int fd = 0;
11091         int inputfd;
11092         int c;
11093         void *buf;
11094         const size_t buflen = 4 << 20;
11095         off_t pos;
11096         size_t page_size = sysconf(_SC_PAGESIZE);
11097         struct ll_ioc_lease_id ioc;
11098         struct option long_opts[] = {
11099         { .val = 'h',   .name = "help",         .has_arg = no_argument },
11100         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
11101         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
11102         { .name = NULL } };
11103
11104         while ((c = getopt_long(argc, argv, "hi:N:", long_opts, NULL)) >= 0) {
11105                 char *end;
11106
11107                 switch (c) {
11108                 case 'N': {
11109                         unsigned long int id;
11110
11111                         errno = 0;
11112                         id = strtoul(optarg, &end, 0);
11113                         if (errno != 0 || *end != '\0' || id == 0 ||
11114                             id > UINT16_MAX) {
11115                                 fprintf(stderr,
11116                                         "%s %s: invalid mirror ID '%s'\n",
11117                                         progname, argv[0], optarg);
11118                                 return rc;
11119                         }
11120
11121                         mirror_id = (__u16)id;
11122                         break;
11123                 }
11124                 case 'i':
11125                         inputfile = optarg;
11126                         break;
11127                 default:
11128                         fprintf(stderr, "%s: unrecognized option '%s'\n",
11129                                 progname, argv[optind - 1]);
11130                         /* fallthrough */
11131                 case 'h':
11132                         return CMD_HELP;
11133                 }
11134         }
11135
11136         if (argc == optind) {
11137                 fprintf(stderr, "%s %s: no mirrored file provided\n",
11138                         progname, argv[0]);
11139                 return rc;
11140         } else if (argc > optind + 1) {
11141                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
11142                 return rc;
11143         }
11144
11145         if (mirror_id == 0) {
11146                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
11147                         progname, argv[0]);
11148                 return rc;
11149         }
11150
11151         /* open mirror file */
11152         fname = argv[optind];
11153         fd = open(fname, O_DIRECT | O_WRONLY);
11154         if (fd < 0) {
11155                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11156                         progname, argv[0], fname, strerror(errno));
11157                 return rc;
11158         }
11159
11160         /* verify mirror id */
11161         rc = verify_mirror_id_by_fd(fd, mirror_id);
11162         if (rc) {
11163                 fprintf(stderr,
11164                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11165                         progname, argv[0], mirror_id, fname);
11166                 goto close_fd;
11167         }
11168
11169         /* open input file */
11170         if (inputfile) {
11171                 rc = check_same_file(fd, inputfile);
11172                 if (rc == 0) {
11173                         fprintf(stderr,
11174                         "%s %s: input file cannot be the mirrored file\n",
11175                                 progname, argv[0]);
11176                         goto close_fd;
11177                 }
11178                 if (rc < 0)
11179                         goto close_fd;
11180
11181                 inputfd = open(inputfile, O_RDONLY, 0644);
11182                 if (inputfd < 0) {
11183                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
11184                                 progname, argv[0], inputfile, strerror(errno));
11185                         rc = -errno;
11186                         goto close_fd;
11187                 }
11188         } else {
11189                 inputfd = STDIN_FILENO;
11190         }
11191
11192         /* allocate buffer */
11193         rc = posix_memalign(&buf, page_size, buflen);
11194         if (rc) {
11195                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
11196                         progname, argv[0], rc);
11197                 goto close_inputfd;
11198         }
11199
11200         /* prepare target mirror components instantiation */
11201         ioc.lil_mode = LL_LEASE_WRLCK;
11202         ioc.lil_flags = LL_LEASE_RESYNC;
11203         ioc.lil_mirror_id = mirror_id;
11204         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
11205         if (rc < 0) {
11206                 fprintf(stderr,
11207                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
11208                         progname, argv[0], fname, strerror(errno));
11209                 goto free_buf;
11210         }
11211
11212         pos = 0;
11213         while (1) {
11214                 ssize_t bytes_read;
11215                 ssize_t written;
11216                 size_t to_write;
11217
11218                 rc = llapi_lease_check(fd);
11219                 if (rc != LL_LEASE_WRLCK) {
11220                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
11221                                 progname, argv[0], fname);
11222                         goto free_buf;
11223                 }
11224
11225                 bytes_read = read(inputfd, buf, buflen);
11226                 if (bytes_read < 0) {
11227                         rc = bytes_read;
11228                         fprintf(stderr,
11229                                 "%s %s: fail to read data from '%s': %s\n",
11230                                 progname, argv[0], inputfile ? : "STDIN",
11231                                 strerror(errno));
11232                         rc = -errno;
11233                         goto free_buf;
11234                 }
11235
11236                 /* EOF reached */
11237                 if (bytes_read == 0)
11238                         break;
11239
11240                 /* round up to page align to make direct IO happy. */
11241                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
11242
11243                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
11244                                              pos);
11245                 if (written < 0) {
11246                         rc = written;
11247                         fprintf(stderr,
11248                               "%s %s: fail to write to mirror %u: %s\n",
11249                                 progname, argv[0], mirror_id,
11250                                 strerror(-rc));
11251                         goto free_buf;
11252                 }
11253
11254                 pos += bytes_read;
11255         }
11256
11257         if (pos & (page_size - 1)) {
11258                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
11259                 if (rc < 0)
11260                         goto free_buf;
11261         }
11262
11263         ioc.lil_mode = LL_LEASE_UNLCK;
11264         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
11265         ioc.lil_count = 0;
11266         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
11267         if (rc <= 0) {
11268                 if (rc == 0)
11269                         rc = -EBUSY;
11270                 fprintf(stderr,
11271                         "%s %s: release lease lock of '%s' failed: %s\n",
11272                         progname, argv[0], fname, strerror(errno));
11273                 goto free_buf;
11274         }
11275
11276         rc = 0;
11277
11278 free_buf:
11279         free(buf);
11280 close_inputfd:
11281         if (inputfile)
11282                 close(inputfd);
11283 close_fd:
11284         close(fd);
11285
11286         return rc;
11287 }
11288
11289 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
11290 {
11291         struct llapi_layout *layout;
11292         struct collect_ids_data cid = { .cid_ids = ids,
11293                                         .cid_count = 0,
11294                                         .cid_exclude = exclude_id, };
11295         int rc;
11296
11297         layout = llapi_layout_get_by_fd(fd, 0);
11298         if (!layout) {
11299                 fprintf(stderr, "could not get layout\n");
11300                 return -EINVAL;
11301         }
11302
11303         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
11304         if (rc < 0) {
11305                 fprintf(stderr, "failed to iterate layout\n");
11306                 llapi_layout_free(layout);
11307
11308                 return rc;
11309         }
11310         llapi_layout_free(layout);
11311
11312         return cid.cid_count;
11313 }
11314
11315 #ifndef MIRROR_ID_NEG
11316 #define MIRROR_ID_NEG         0x8000
11317 #endif
11318
11319 static inline int lfs_mirror_copy(int argc, char **argv)
11320 {
11321         int rc = CMD_HELP;
11322         __u16 read_mirror_id = 0;
11323         __u16 ids[128] = { 0 };
11324         int count = 0;
11325         struct llapi_layout *layout = NULL;
11326         struct llapi_resync_comp comp_array[1024] = { { 0 } };
11327         int comp_size = 0;
11328         char *fname;
11329         int fd = 0;
11330         int c;
11331         int i;
11332         ssize_t copied;
11333         struct ll_ioc_lease *ioc = NULL;
11334         struct ll_ioc_lease_id *resync_ioc;
11335         struct option long_opts[] = {
11336         { .val = 'h',   .name = "help",         .has_arg = no_argument },
11337         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
11338         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
11339         { .name = NULL } };
11340         char cmd[PATH_MAX];
11341
11342         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11343         progname = cmd;
11344         while ((c = getopt_long(argc, argv, "hi:o:", long_opts, NULL)) >= 0) {
11345                 char *end;
11346
11347                 switch (c) {
11348                 case 'i': {
11349                         unsigned long int id;
11350
11351                         errno = 0;
11352                         id = strtoul(optarg, &end, 0);
11353                         if (errno != 0 || *end != '\0' || id == 0 ||
11354                             id > UINT16_MAX) {
11355                                 fprintf(stderr,
11356                                         "%s: invalid read mirror ID '%s'\n",
11357                                         progname, optarg);
11358                                 return rc;
11359                         }
11360
11361                         read_mirror_id = (__u16)id;
11362                         break;
11363                 }
11364                 case 'o':
11365                         if (!strcmp(optarg, "-1")) {
11366                                 /* specify all other mirrors */
11367                                 ids[0] = (__u16)-1;
11368                                 count = 1;
11369                         } else {
11370                                 count = parse_mirror_ids((__u16 *)ids,
11371                                                          ARRAY_SIZE(ids),
11372                                                          optarg);
11373                                 if (count < 0)
11374                                         return rc;
11375                         }
11376                         break;
11377                 default:
11378                         fprintf(stderr, "%s: unrecognized option '%s'\n",
11379                                 progname, argv[optind - 1]);
11380                         /* fallthrough */
11381                 case 'h':
11382                         return CMD_HELP;
11383                 }
11384         }
11385
11386         if (argc == optind) {
11387                 fprintf(stderr, "%s %s: no mirrored file provided\n",
11388                         progname, argv[0]);
11389                 return rc;
11390         } else if (argc > optind + 1) {
11391                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
11392                 return rc;
11393         }
11394
11395         if (read_mirror_id == 0) {
11396                 fprintf(stderr,
11397                         "%s %s: no valid read mirror ID %d is provided\n",
11398                         progname, argv[0], read_mirror_id);
11399                 return rc;
11400         }
11401
11402         if (count == 0) {
11403                 fprintf(stderr,
11404                         "%s %s: no write mirror ID is provided\n",
11405                         progname, argv[0]);
11406                 return rc;
11407         }
11408
11409         for (i = 0; i < count; i++) {
11410                 if (read_mirror_id == ids[i]) {
11411                         fprintf(stderr,
11412                         "%s %s: read and write mirror ID cannot be the same\n",
11413                                 progname, argv[0]);
11414                         return rc;
11415                 }
11416         }
11417
11418         /* open mirror file */
11419         fname = argv[optind];
11420
11421         fd = open(fname, O_DIRECT | O_RDWR);
11422         if (fd < 0) {
11423                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11424                         progname, argv[0], fname, strerror(errno));
11425                 return rc;
11426         }
11427
11428         /* write to all other mirrors */
11429         if (ids[0] == (__u16)-1) {
11430                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
11431                 if (count <= 0) {
11432                         rc = count;
11433                         fprintf(stderr,
11434                         "%s %s: failed to get other mirror ids in '%s': %d\n",
11435                                 progname, argv[0], fname, rc);
11436                         goto close_fd;
11437                 }
11438         }
11439
11440         /* verify mirror id */
11441         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
11442         if (rc) {
11443                 fprintf(stderr,
11444                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11445                         progname, argv[0], read_mirror_id, fname);
11446                 goto close_fd;
11447         }
11448
11449         for (i = 0; i < count; i++) {
11450                 rc = verify_mirror_id_by_fd(fd, ids[i]);
11451                 if (rc) {
11452                         fprintf(stderr,
11453                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11454                                 progname, argv[0], ids[i], fname);
11455                         goto close_fd;
11456                 }
11457         }
11458
11459         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
11460         if (!ioc) {
11461                 fprintf(stderr,
11462                         "%s %s: cannot alloc comp id array for ioc: %s\n",
11463                         progname, argv[0], strerror(errno));
11464                 rc = -errno;
11465                 goto close_fd;
11466         }
11467
11468         /* get stale component info */
11469         layout = llapi_layout_get_by_fd(fd, 0);
11470         if (!layout) {
11471                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
11472                         progname, argv[0], fname, strerror(errno));
11473                 rc = -errno;
11474                 goto free_ioc;
11475         }
11476         comp_size = llapi_mirror_find_stale(layout, comp_array,
11477                                             ARRAY_SIZE(comp_array),
11478                                             ids, count);
11479         llapi_layout_free(layout);
11480         if (comp_size < 0) {
11481                 rc = comp_size;
11482                 goto free_ioc;
11483         }
11484
11485         /* prepare target mirror components instantiation */
11486         resync_ioc = (struct ll_ioc_lease_id *)ioc;
11487         resync_ioc->lil_mode = LL_LEASE_WRLCK;
11488         resync_ioc->lil_flags = LL_LEASE_RESYNC;
11489         if (count == 1)
11490                 resync_ioc->lil_mirror_id = ids[0];
11491         else
11492                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
11493         rc = llapi_lease_set(fd, ioc);
11494         if (rc < 0) {
11495                 fprintf(stderr,
11496                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
11497                         progname, argv[0], fname, strerror(errno));
11498                 goto free_ioc;
11499         }
11500
11501         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
11502         if (copied < 0) {
11503                 rc = copied;
11504                 fprintf(stderr, "%s %s: copy error: %d\n",
11505                         progname, argv[0], rc);
11506                 goto free_ioc;
11507         }
11508
11509         fprintf(stdout, "mirror copied successfully: ");
11510         for (i = 0; i < copied; i++)
11511                 fprintf(stdout, "%d ", ids[i]);
11512         fprintf(stdout, "\n");
11513
11514         ioc->lil_mode = LL_LEASE_UNLCK;
11515         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
11516         ioc->lil_count = 0;
11517         for (i = 0; i < comp_size; i++) {
11518                 int j;
11519
11520                 for (j = 0; j < copied; j++) {
11521                         if (comp_array[i].lrc_mirror_id != ids[j])
11522                                 continue;
11523
11524                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
11525                         ioc->lil_count++;
11526                 }
11527         }
11528         rc = llapi_lease_set(fd, ioc);
11529         if (rc <= 0) {
11530                 if (rc == 0)
11531                         rc = -EBUSY;
11532                 fprintf(stderr,
11533                         "%s %s: release lease lock of '%s' failed: %s\n",
11534                         progname, argv[0], fname, strerror(errno));
11535                 goto free_ioc;
11536         }
11537
11538         rc = 0;
11539
11540 free_ioc:
11541         free(ioc);
11542 close_fd:
11543         close(fd);
11544
11545         return rc;
11546 }
11547
11548 /**
11549  * struct verify_chunk - Mirror chunk to be verified.
11550  * @chunk:        [start, end) of the chunk.
11551  * @mirror_count: Number of mirror ids in @mirror_id array.
11552  * @mirror_id:    Array of valid mirror ids that cover the chunk.
11553  */
11554 struct verify_chunk {
11555         struct lu_extent chunk;
11556         unsigned int mirror_count;
11557         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
11558 };
11559
11560 /**
11561  * print_chunks() - Print chunk information.
11562  * @fname:       Mirrored file name.
11563  * @chunks:      Array of chunks.
11564  * @chunk_count: Number of chunks in @chunks array.
11565  *
11566  * This function prints [start, end) of each chunk in @chunks
11567  * for mirrored file @fname, and also prints the valid mirror ids
11568  * that cover the chunk.
11569  *
11570  * Return: void.
11571  */
11572 static inline
11573 void print_chunks(const char *fname, struct verify_chunk *chunks,
11574                   int chunk_count)
11575 {
11576         int i;
11577         int j;
11578
11579         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
11580         for (i = 0; i < chunk_count; i++) {
11581                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
11582
11583                 if (chunks[i].mirror_count == 0)
11584                         fprintf(stdout, "\t[");
11585                 else {
11586                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
11587                         for (j = 1; j < chunks[i].mirror_count; j++)
11588                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
11589                 }
11590                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
11591         }
11592         fprintf(stdout, "\n");
11593 }
11594
11595 /**
11596  * print_checksums() - Print CRC-32 checksum values.
11597  * @chunk: A chunk and its corresponding valid mirror ids.
11598  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
11599  *
11600  * This function prints CRC-32 checksum values on @chunk for
11601  * each valid mirror that covers it.
11602  *
11603  * Return: void.
11604  */
11605 static inline
11606 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
11607 {
11608         int i;
11609
11610         fprintf(stdout,
11611                 "CRC-32 checksum value for chunk "DEXT":\n",
11612                 PEXT(&chunk->chunk));
11613         for (i = 0; i < chunk->mirror_count; i++)
11614                 fprintf(stdout, "Mirror %u:\t%#lx\n",
11615                         chunk->mirror_id[i], crc[i]);
11616         fprintf(stdout, "\n");
11617 }
11618
11619 /**
11620  * filter_mirror_id() - Filter specified mirror ids.
11621  * @chunks:      Array of chunks.
11622  * @chunk_count: Number of chunks in @chunks array.
11623  * @mirror_ids:  Specified mirror ids to be verified.
11624  * @ids_nr:      Number of specified mirror ids.
11625  *
11626  * This function scans valid mirror ids that cover each chunk in @chunks
11627  * and filters specified mirror ids.
11628  *
11629  * Return: void.
11630  */
11631 static inline
11632 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
11633                       __u16 *mirror_ids, int ids_nr)
11634 {
11635         int i;
11636         int j;
11637         int k;
11638         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11639         unsigned int valid_count = 0;
11640
11641         for (i = 0; i < chunk_count; i++) {
11642                 if (chunks[i].mirror_count == 0)
11643                         continue;
11644
11645                 valid_count = 0;
11646                 for (j = 0; j < ids_nr; j++) {
11647                         for (k = 0; k < chunks[i].mirror_count; k++) {
11648                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
11649                                         valid_id[valid_count] = mirror_ids[j];
11650                                         valid_count++;
11651                                         break;
11652                                 }
11653                         }
11654                 }
11655
11656                 memcpy(chunks[i].mirror_id, valid_id,
11657                        sizeof(__u16) * valid_count);
11658                 chunks[i].mirror_count = valid_count;
11659         }
11660 }
11661
11662 /**
11663  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
11664  * @layout:      Mirror component list.
11665  * @chunks:      Array of chunks.
11666  * @chunks_size: Array size of @chunks.
11667  *
11668  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
11669  * to find out chunk segments and store them in @chunks array.
11670  *
11671  * The @mirror_id array in each element of @chunks will store the valid
11672  * mirror ids that cover the chunk. If a mirror component covering the
11673  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
11674  * will not be stored into the @mirror_id array, and the chunk for that
11675  * mirror will not be verified.
11676  *
11677  * The @mirror_count in each element of @chunks will store the number of
11678  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
11679  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
11680  * indicates the chunk is valid in only one mirror. In both cases, the
11681  * chunk will not be verified.
11682  *
11683  * Here is an example:
11684  *
11685  *  0      1M     2M     3M     4M           EOF
11686  *  +------+-------------+--------------------+
11687  *  |      |             |      S             |       mirror1
11688  *  +------+------+------+------+-------------+
11689  *  |             |   S  |   S  |             |       mirror2
11690  *  +-------------+------+------+-------------+
11691  *
11692  * prepared @chunks array will contain 5 elements:
11693  * (([0, 1M), [1, 2], 2),
11694  *  ([1M, 2M), [1, 2], 2),
11695  *  ([2M, 3M), [1], 1),
11696  *  ([3M, 4M], [], 0),
11697  *  ([4M, EOF), [2], 1))
11698  *
11699  * Return: the actual array size of @chunks on success
11700  *         or a negative error code on failure.
11701  */
11702 static inline
11703 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
11704                              struct verify_chunk *chunks,
11705                              size_t chunks_size)
11706 {
11707         uint64_t start;
11708         uint64_t end;
11709         uint32_t mirror_id;
11710         uint32_t flags;
11711         int idx = 0;
11712         int i = 0;
11713         int rc = 0;
11714
11715         memset(chunks, 0, sizeof(*chunks) * chunks_size);
11716
11717         while (1) {
11718                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
11719                 if (rc < 0) {
11720                         fprintf(stderr,
11721                                 "%s: move to the first layout component: %s.\n",
11722                                 progname, strerror(errno));
11723                         goto error;
11724                 }
11725
11726                 i = 0;
11727                 rc = 0;
11728                 chunks[idx].chunk.e_end = LUSTRE_EOF;
11729                 while (rc == 0) {
11730                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
11731                         if (rc < 0) {
11732                                 fprintf(stderr,
11733                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
11734                                         progname, strerror(errno));
11735                                 goto error;
11736                         }
11737
11738                         if (start > chunks[idx].chunk.e_start ||
11739                             end <= chunks[idx].chunk.e_start)
11740                                 goto next;
11741
11742                         if (end < chunks[idx].chunk.e_end)
11743                                 chunks[idx].chunk.e_end = end;
11744
11745                         rc = llapi_layout_comp_flags_get(layout, &flags);
11746                         if (rc < 0) {
11747                                 fprintf(stderr,
11748                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
11749                                         progname, strerror(errno));
11750                                 goto error;
11751                         }
11752
11753                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
11754                                 goto next;
11755
11756                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
11757                         if (rc < 0) {
11758                                 fprintf(stderr,
11759                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
11760                                         progname, strerror(errno));
11761                                 goto error;
11762                         }
11763
11764                         chunks[idx].mirror_id[i] = mirror_id;
11765                         i++;
11766                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
11767                                 fprintf(stderr,
11768                                         "%s: mirror_id array is too small.\n",
11769                                         progname);
11770                                 rc = -EINVAL;
11771                                 goto error;
11772                         }
11773
11774 next:
11775                         rc = llapi_layout_comp_use(layout,
11776                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
11777                         if (rc < 0) {
11778                                 fprintf(stderr,
11779                                         "%s: move to the next layout component: %s.\n",
11780                                         progname, strerror(errno));
11781                                 goto error;
11782                         }
11783                 } /* loop through all components */
11784
11785                 chunks[idx].mirror_count = i;
11786
11787                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
11788                         break;
11789
11790                 idx++;
11791                 if (idx >= chunks_size) {
11792                         fprintf(stderr, "%s: chunks array is too small.\n",
11793                                 progname);
11794                         rc = -EINVAL;
11795                         goto error;
11796                 }
11797
11798                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
11799         }
11800
11801 error:
11802         return rc < 0 ? rc : idx + 1;
11803 }
11804
11805 /**
11806  * lfs_mirror_verify_chunk() - Verify a chunk.
11807  * @fd:        File descriptor of the mirrored file.
11808  * @file_size: Size of the mirrored file.
11809  * @chunk:     A chunk and its corresponding valid mirror ids.
11810  * @verbose:   Verbose mode.
11811  *
11812  * This function verifies a @chunk contains exactly the same data
11813  * ammong the mirrors that cover it.
11814  *
11815  * If @verbose is specified, then the function will print where the
11816  * differences are if the data do not match. Otherwise, it will
11817  * just return an error in that case.
11818  *
11819  * Return: 0 on success or a negative error code on failure.
11820  */
11821 static inline
11822 int lfs_mirror_verify_chunk(int fd, size_t file_size,
11823                             struct verify_chunk *chunk, int verbose)
11824 {
11825         const size_t buflen = 4 * 1024 * 1024; /* 4M */
11826         void *buf;
11827         size_t page_size = sysconf(_SC_PAGESIZE);
11828         ssize_t bytes_read;
11829         ssize_t bytes_done;
11830         size_t count;
11831         off_t pos;
11832         unsigned long crc;
11833         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11834         int i;
11835         int rc = 0;
11836
11837         if (file_size == 0)
11838                 return 0;
11839
11840         rc = posix_memalign(&buf, page_size, buflen);
11841         if (rc) /* error code is returned directly */
11842                 return -rc;
11843
11844         if (verbose > 1) {
11845                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11846                         PEXT(&chunk->chunk));
11847                 for (i = 0; i < chunk->mirror_count; i++)
11848                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11849                 fprintf(stdout, "\n");
11850         }
11851
11852         bytes_done = 0;
11853         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
11854         pos = chunk->chunk.e_start;
11855         while (bytes_done < count) {
11856                 /* compute initial CRC-32 checksum */
11857                 crc = crc32(0L, Z_NULL, 0);
11858                 memset(crc_array, 0, sizeof(crc_array));
11859
11860                 bytes_read = 0;
11861                 for (i = 0; i < chunk->mirror_count; i++) {
11862                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
11863                                                        buf, buflen, pos);
11864                         if (bytes_read < 0) {
11865                                 rc = bytes_read;
11866                                 fprintf(stderr,
11867                                         "%s: failed to read data from mirror %u: %s.\n",
11868                                         progname, chunk->mirror_id[i],
11869                                         strerror(-rc));
11870                                 goto error;
11871                         }
11872
11873                         /* compute new CRC-32 checksum */
11874                         crc_array[i] = crc32(crc, buf, bytes_read);
11875                 }
11876
11877                 if (verbose)
11878                         print_checksums(chunk, crc_array);
11879
11880                 /* compare CRC-32 checksum values */
11881                 for (i = 1; i < chunk->mirror_count; i++) {
11882                         if (crc_array[i] != crc_array[0]) {
11883                                 rc = -EINVAL;
11884
11885                                 fprintf(stderr,
11886                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
11887                                         progname, PEXT(&chunk->chunk),
11888                                         chunk->mirror_id[0],
11889                                         chunk->mirror_id[i]);
11890                         }
11891                 }
11892
11893                 pos += bytes_read;
11894                 bytes_done += bytes_read;
11895         }
11896
11897         if (verbose > 1 && rc == 0) {
11898                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11899                         PEXT(&chunk->chunk));
11900                 for (i = 0; i < chunk->mirror_count; i++)
11901                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11902                 fprintf(stdout, " PASS\n\n");
11903         }
11904
11905 error:
11906         free(buf);
11907         return rc;
11908 }
11909
11910 /**
11911  * lfs_mirror_verify_file() - Verify a mirrored file.
11912  * @fname:      Mirrored file name.
11913  * @mirror_ids: Specified mirror ids to be verified.
11914  * @ids_nr:     Number of specified mirror ids.
11915  * @verbose:    Verbose mode.
11916  *
11917  * This function verifies that each SYNC mirror of a mirrored file
11918  * specified by @fname contains exactly the same data.
11919  *
11920  * If @mirror_ids is specified, then the function will verify the
11921  * mirrors specified by @mirror_ids contain exactly the same data.
11922  *
11923  * If @verbose is specified, then the function will print where the
11924  * differences are if the data do not match. Otherwise, it will
11925  * just return an error in that case.
11926  *
11927  * Return: 0 on success or a negative error code on failure.
11928  */
11929 static inline
11930 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
11931                            int verbose)
11932 {
11933         struct verify_chunk chunks_array[1024] = { };
11934         struct llapi_layout *layout = NULL;
11935         struct stat stbuf;
11936         uint32_t flr_state;
11937         int fd;
11938         int chunk_count = 0;
11939         int idx = 0;
11940         int rc = 0;
11941         int rc1 = 0;
11942         int rc2 = 0;
11943
11944         if (stat(fname, &stbuf) < 0) {
11945                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
11946                         progname, fname, strerror(errno));
11947                 rc = -errno;
11948                 goto error;
11949         }
11950
11951         if (!S_ISREG(stbuf.st_mode)) {
11952                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
11953                         progname, fname);
11954                 rc = -EINVAL;
11955                 goto error;
11956         }
11957
11958         if (stbuf.st_size == 0) {
11959                 if (verbose)
11960                         fprintf(stdout, "%s: '%s' file size is 0.\n",
11961                                 progname, fname);
11962                 rc = 0;
11963                 goto error;
11964         }
11965
11966         fd = open(fname, O_DIRECT | O_RDONLY);
11967         if (fd < 0) {
11968                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
11969                         progname, fname, strerror(errno));
11970                 rc = -errno;
11971                 goto error;
11972         }
11973
11974         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
11975         if (rc < 0) {
11976                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
11977                         progname, fname, strerror(errno));
11978                 goto close_fd;
11979         }
11980
11981         layout = llapi_layout_get_by_fd(fd, 0);
11982         if (!layout) {
11983                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
11984                         progname, fname, strerror(errno));
11985                 rc = -errno;
11986                 llapi_lease_release(fd);
11987                 goto close_fd;
11988         }
11989
11990         rc = llapi_layout_flags_get(layout, &flr_state);
11991         if (rc < 0) {
11992                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
11993                         progname, fname, strerror(errno));
11994                 rc = -errno;
11995                 goto free_layout;
11996         }
11997
11998         flr_state &= LCM_FL_FLR_MASK;
11999         switch (flr_state) {
12000         case LCM_FL_NONE:
12001                 rc = -EINVAL;
12002                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
12003                         progname, fname, llapi_layout_flags_string(flr_state));
12004                 goto free_layout;
12005         default:
12006                 break;
12007         }
12008
12009         /* find out mirror chunks to be verified */
12010         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
12011                                                ARRAY_SIZE(chunks_array));
12012         if (chunk_count < 0) {
12013                 rc = chunk_count;
12014                 goto free_layout;
12015         }
12016
12017         if (ids_nr > 0)
12018                 /* filter specified mirror ids */
12019                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
12020
12021         if (verbose > 2)
12022                 print_chunks(fname, chunks_array, chunk_count);
12023
12024         for (idx = 0; idx < chunk_count; idx++) {
12025                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
12026                         if (verbose)
12027                                 fprintf(stdout,
12028                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
12029                                         progname, fname,
12030                                         PEXT(&chunks_array[idx].chunk),
12031                                         (unsigned long long)stbuf.st_size);
12032                         break;
12033                 }
12034
12035                 if (chunks_array[idx].mirror_count == 0) {
12036                         fprintf(stderr,
12037                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
12038                                 progname, fname,
12039                                 PEXT(&chunks_array[idx].chunk));
12040                         if (verbose) {
12041                                 fprintf(stderr, "skipped\n");
12042                                 continue;
12043                         }
12044                         rc = -EINVAL;
12045                         fprintf(stderr, "failed\n");
12046                         goto free_layout;
12047                 }
12048
12049                 if (chunks_array[idx].mirror_count == 1) {
12050                         if (verbose)
12051                                 fprintf(stdout,
12052                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
12053                                         progname, fname,
12054                                         PEXT(&chunks_array[idx].chunk),
12055                                         chunks_array[idx].mirror_id[0]);
12056                         continue;
12057                 }
12058
12059                 rc = llapi_lease_check(fd);
12060                 if (rc != LL_LEASE_RDLCK) {
12061                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
12062                                 progname, fname);
12063                         goto free_layout;
12064                 }
12065
12066                 /* verify one chunk */
12067                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
12068                                               &chunks_array[idx], verbose);
12069                 if (rc1 < 0) {
12070                         rc2 = rc1;
12071                         if (!verbose) {
12072                                 rc = rc1;
12073                                 goto free_layout;
12074                         }
12075                 }
12076         }
12077
12078         if (rc2 < 0)
12079                 rc = rc2;
12080
12081 free_layout:
12082         llapi_layout_free(layout);
12083         llapi_lease_release(fd);
12084 close_fd:
12085         close(fd);
12086 error:
12087         return rc;
12088 }
12089
12090 /**
12091  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
12092  * @argc: The count of lfs mirror verify command line arguments.
12093  * @argv: Array of strings for lfs mirror verify command line arguments.
12094  *
12095  * This function parses lfs mirror verify command and verifies the
12096  * specified mirrored file(s).
12097  *
12098  * Return: 0 on success or a negative error code on failure.
12099  */
12100 static inline int lfs_mirror_verify(int argc, char **argv)
12101 {
12102         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
12103         int ids_nr = 0;
12104         int c;
12105         int verbose = 0;
12106         int rc = 0;
12107         int rc1 = 0;
12108         char cmd[PATH_MAX];
12109
12110         struct option long_opts[] = {
12111         { .val = 'h',   .name = "help",         .has_arg = no_argument },
12112         { .val = 'o',   .name = "only",         .has_arg = required_argument },
12113         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
12114         { .name = NULL } };
12115
12116         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12117         progname = cmd;
12118         while ((c = getopt_long(argc, argv, "ho:v", long_opts, NULL)) >= 0) {
12119                 switch (c) {
12120                 case 'o':
12121                         rc = parse_mirror_ids(mirror_ids,
12122                                               ARRAY_SIZE(mirror_ids),
12123                                               optarg);
12124                         if (rc < 0) {
12125                                 fprintf(stderr,
12126                                         "%s: bad mirror ids '%s'.\n",
12127                                         progname, optarg);
12128                                 goto error;
12129                         }
12130                         ids_nr = rc;
12131                         if (ids_nr < 2) {
12132                                 fprintf(stderr,
12133                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
12134                                         progname);
12135                                 rc = CMD_HELP;
12136                                 goto error;
12137                         }
12138                         break;
12139                 case 'v':
12140                         verbose++;
12141                         break;
12142                 default:
12143                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12144                                 progname, argv[optind - 1]);
12145                         /* fallthrough */
12146                 case 'h':
12147                         rc = CMD_HELP;
12148                         goto error;
12149                 }
12150         }
12151
12152         if (argc == optind) {
12153                 fprintf(stderr, "%s: no file name given.\n", progname);
12154                 rc = CMD_HELP;
12155                 goto error;
12156         }
12157
12158         if (ids_nr > 0 && argc > optind + 1) {
12159                 fprintf(stderr,
12160                         "%s: '--only' cannot be used upon multiple files.\n",
12161                         progname);
12162                 rc = CMD_HELP;
12163                 goto error;
12164         }
12165
12166         if (ids_nr > 0) {
12167                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
12168                 if (rc < 0)
12169                         goto error;
12170         }
12171
12172         rc = 0;
12173         for (; optind < argc; optind++) {
12174                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
12175                                              verbose);
12176                 if (rc1 < 0)
12177                         rc = rc1;
12178         }
12179 error:
12180         return rc;
12181 }
12182
12183 /**
12184  * lfs_mirror() - Parse and execute lfs mirror commands.
12185  * @argc: The count of lfs mirror command line arguments.
12186  * @argv: Array of strings for lfs mirror command line arguments.
12187  *
12188  * This function parses lfs mirror commands and performs the
12189  * corresponding functions specified in mirror_cmdlist[].
12190  *
12191  * Return: 0 on success or an error code on failure.
12192  */
12193 static int lfs_mirror(int argc, char **argv)
12194 {
12195         char cmd[PATH_MAX];
12196         int rc = 0;
12197
12198         setlinebuf(stdout);
12199
12200         Parser_init("lfs-mirror > ", mirror_cmdlist);
12201
12202         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12203         progname = cmd;
12204         program_invocation_short_name = cmd;
12205         if (argc > 1)
12206                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
12207         else
12208                 rc = Parser_commands();
12209
12210         return rc < 0 ? -rc : rc;
12211 }
12212
12213 static void lustre_som_swab(struct lustre_som_attrs *attrs)
12214 {
12215 #if __BYTE_ORDER == __BIG_ENDIAN
12216         __swab16s(&attrs->lsa_valid);
12217         __swab64s(&attrs->lsa_size);
12218         __swab64s(&attrs->lsa_blocks);
12219 #endif
12220 }
12221
12222 enum lfs_som_type {
12223         LFS_SOM_SIZE = 0x1,
12224         LFS_SOM_BLOCKS = 0x2,
12225         LFS_SOM_FLAGS = 0x4,
12226         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
12227                            LFS_SOM_FLAGS,
12228 };
12229
12230 static int lfs_getsom(int argc, char **argv)
12231 {
12232         const char *path;
12233         struct lustre_som_attrs *attrs;
12234         char buf[sizeof(*attrs) + 64];
12235         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
12236         int rc = 0, c;
12237
12238         while ((c = getopt(argc, argv, "bfhs")) != -1) {
12239                 switch (c) {
12240                 case 'b':
12241                         type = LFS_SOM_BLOCKS;
12242                         break;
12243                 case 'f':
12244                         type = LFS_SOM_FLAGS;
12245                         break;
12246                 case 's':
12247                         type = LFS_SOM_SIZE;
12248                         break;
12249                 default:
12250                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12251                                 progname, argv[optind - 1]);
12252                         /* fallthrough */
12253                 case 'h':
12254                         return CMD_HELP;
12255                 }
12256         }
12257
12258         argc -= optind;
12259         argv += optind;
12260
12261         if (argc != 1) {
12262                 fprintf(stderr, "%s: %s\n",
12263                         progname, argc == 0 ? "miss file target" :
12264                         "input more than 2 files");
12265                 return CMD_HELP;
12266         }
12267
12268         path = argv[0];
12269         attrs = (void *)buf;
12270         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
12271         if (rc < 0) {
12272                 rc = -errno;
12273                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
12274                         argv[0], strerror(errno), errno);
12275                 return rc;
12276         }
12277
12278         lustre_som_swab(attrs);
12279
12280         switch (type) {
12281         case LFS_SOM_ATTR_ALL:
12282                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
12283                        path, (unsigned long long)attrs->lsa_size,
12284                        (unsigned long long)attrs->lsa_blocks,
12285                        attrs->lsa_valid);
12286                 break;
12287         case LFS_SOM_SIZE:
12288                 printf("%llu\n", (unsigned long long)attrs->lsa_size);
12289                 break;
12290         case LFS_SOM_BLOCKS:
12291                 printf("%llu\n", (unsigned long long)attrs->lsa_blocks);
12292                 break;
12293         case LFS_SOM_FLAGS:
12294                 printf("%x\n", attrs->lsa_valid);
12295                 break;
12296         default:
12297                 fprintf(stderr, "%s: unknown option\n", progname);
12298                 return CMD_HELP;
12299         }
12300
12301         return 0;
12302 }
12303
12304 /**
12305  * lfs_mirror_list_commands() - List lfs mirror commands.
12306  * @argc: The count of command line arguments.
12307  * @argv: Array of strings for command line arguments.
12308  *
12309  * This function lists lfs mirror commands defined in mirror_cmdlist[].
12310  *
12311  * Return: 0 on success.
12312  */
12313 static int lfs_mirror_list_commands(int argc, char **argv)
12314 {
12315         char buffer[81] = "";
12316
12317         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
12318                              NULL, 0, 4);
12319
12320         return 0;
12321 }
12322
12323 static int lfs_pcc_attach(int argc, char **argv)
12324 {
12325         struct option long_opts[] = {
12326         { .val = 'h',   .name = "help", .has_arg = no_argument },
12327         { .val = 'i',   .name = "id",   .has_arg = required_argument },
12328         { .name = NULL } };
12329         int c;
12330         int rc = 0;
12331         __u32 archive_id = 0;
12332         const char *path;
12333         char *end;
12334         char fullpath[PATH_MAX];
12335         enum lu_pcc_type type = LU_PCC_READWRITE;
12336
12337         optind = 0;
12338         while ((c = getopt_long(argc, argv, "hi:",
12339                                 long_opts, NULL)) != -1) {
12340                 switch (c) {
12341                 case 'i':
12342                         errno = 0;
12343                         archive_id = strtoul(optarg, &end, 0);
12344                         if (errno != 0 || *end != '\0' ||
12345                             archive_id == 0 || archive_id > UINT32_MAX) {
12346                                 fprintf(stderr,
12347                                         "error: %s: bad archive ID '%s'\n",
12348                                         progname, optarg);
12349                                 return CMD_HELP;
12350                         }
12351                         break;
12352                 default:
12353                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12354                                 progname, argv[optind - 1]);
12355                         /* fallthrough */
12356                 case 'h':
12357                         return CMD_HELP;
12358                 }
12359         }
12360
12361         if (archive_id == 0) {
12362                 fprintf(stderr, "%s: must specify attach ID\n", argv[0]);
12363                 return CMD_HELP;
12364         }
12365
12366         if (argc <= optind) {
12367                 fprintf(stderr, "%s: must specify one or more file names\n",
12368                         argv[0]);
12369                 return CMD_HELP;
12370         }
12371
12372         while (optind < argc) {
12373                 int rc2;
12374
12375                 path = argv[optind++];
12376                 if (!realpath(path, fullpath)) {
12377                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12378                                 argv[0], path, strerror(errno));
12379                         if (rc == 0)
12380                                 rc = -EINVAL;
12381                         continue;
12382                 }
12383
12384                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
12385                 if (rc2 < 0) {
12386                         fprintf(stderr,
12387                                 "%s: cannot attach '%s' to PCC with archive ID '%u': %s\n",
12388                                 argv[0], path, archive_id, strerror(-rc2));
12389                         if (rc == 0)
12390                                 rc = rc2;
12391                 }
12392         }
12393         return rc;
12394 }
12395
12396 static int lfs_pcc_attach_fid(int argc, char **argv)
12397 {
12398         struct option long_opts[] = {
12399         { .val = 'h',   .name = "help", .has_arg = no_argument },
12400         { .val = 'i',   .name = "id",   .has_arg = required_argument },
12401         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
12402         { .name = NULL } };
12403         int c;
12404         int rc = 0;
12405         __u32 archive_id = 0;
12406         char *end;
12407         const char *mntpath = NULL;
12408         const char *fidstr;
12409         enum lu_pcc_type type = LU_PCC_READWRITE;
12410
12411         optind = 0;
12412         while ((c = getopt_long(argc, argv, "hi:m:",
12413                                 long_opts, NULL)) != -1) {
12414                 switch (c) {
12415                 case 'i':
12416                         errno = 0;
12417                         archive_id = strtoul(optarg, &end, 0);
12418                         if (errno != 0 || *end != '\0' ||
12419                             archive_id > UINT32_MAX) {
12420                                 fprintf(stderr,
12421                                         "error: %s: bad archive ID '%s'\n",
12422                                         argv[0], optarg);
12423                                 return CMD_HELP;
12424                         }
12425                         break;
12426                 case 'm':
12427                         mntpath = optarg;
12428                         break;
12429                 default:
12430                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12431                                 progname, argv[optind - 1]);
12432                         /* fallthrough */
12433                 case 'h':
12434                         return CMD_HELP;
12435                 }
12436         }
12437
12438         if (archive_id == 0) {
12439                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
12440                 return CMD_HELP;
12441         }
12442
12443         if (!mntpath) {
12444                 fprintf(stderr, "%s: must specify Lustre mount point\n",
12445                         argv[0]);
12446                 return CMD_HELP;
12447         }
12448
12449         if (argc <= optind) {
12450                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
12451                 return CMD_HELP;
12452         }
12453
12454         while (optind < argc) {
12455                 int rc2;
12456
12457                 fidstr = argv[optind++];
12458
12459                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
12460                                                archive_id, type);
12461                 if (rc2 < 0) {
12462                         fprintf(stderr,
12463                                 "%s: cannot attach '%s' on '%s' to PCC with archive ID '%u': %s\n",
12464                                 argv[0], fidstr, mntpath, archive_id,
12465                                 strerror(rc2));
12466                 }
12467                 if (rc == 0 && rc2 < 0)
12468                         rc = rc2;
12469         }
12470         return rc;
12471 }
12472
12473 static int lfs_pcc_detach(int argc, char **argv)
12474 {
12475         struct option long_opts[] = {
12476         { .val = 'h',   .name = "help", .has_arg = no_argument },
12477         { .val = 'k',   .name = "keep", .has_arg = no_argument },
12478         { .name = NULL } };
12479         int c;
12480         int rc = 0;
12481         const char *path;
12482         char fullpath[PATH_MAX];
12483         __u32 detach_opt = PCC_DETACH_OPT_UNCACHE;
12484
12485         optind = 0;
12486         while ((c = getopt_long(argc, argv, "hk",
12487                                 long_opts, NULL)) != -1) {
12488                 switch (c) {
12489                 case 'k':
12490                         detach_opt = PCC_DETACH_OPT_NONE;
12491                         break;
12492                 default:
12493                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12494                                 progname, argv[optind - 1]);
12495                         /* fallthrough */
12496                 case 'h':
12497                         return CMD_HELP;
12498                 }
12499         }
12500
12501         while (optind < argc) {
12502                 int rc2;
12503
12504                 path = argv[optind++];
12505                 if (!realpath(path, fullpath)) {
12506                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12507                                 argv[0], path, strerror(errno));
12508                         if (rc == 0)
12509                                 rc = -EINVAL;
12510                         continue;
12511                 }
12512
12513                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
12514                 if (rc2 < 0) {
12515                         rc2 = -errno;
12516                         fprintf(stderr,
12517                                 "%s: cannot detach '%s' from PCC: %s\n",
12518                                 argv[0], path, strerror(errno));
12519                         if (rc == 0)
12520                                 rc = rc2;
12521                 }
12522         }
12523         return rc;
12524 }
12525
12526 static int lfs_pcc_detach_fid(int argc, char **argv)
12527 {
12528         struct option long_opts[] = {
12529         { .val = 'h',   .name = "help", .has_arg = no_argument },
12530         { .val = 'k',   .name = "keep", .has_arg = no_argument },
12531         { .name = NULL } };
12532         int c;
12533         int rc = 0;
12534         const char *fid;
12535         const char *mntpath;
12536         __u32 detach_opt = PCC_DETACH_OPT_UNCACHE;
12537
12538         optind = 0;
12539         while ((c = getopt_long(argc, argv, "hk",
12540                                 long_opts, NULL)) != -1) {
12541                 switch (c) {
12542                 case 'k':
12543                         detach_opt = PCC_DETACH_OPT_NONE;
12544                         break;
12545                 default:
12546                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12547                                 progname, argv[optind - 1]);
12548                         /* fallthrough */
12549                 case 'h':
12550                         return CMD_HELP;
12551                 }
12552         }
12553
12554         mntpath = argv[optind++];
12555
12556         while (optind < argc) {
12557                 int rc2;
12558
12559                 fid = argv[optind++];
12560
12561                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
12562                 if (rc2 < 0) {
12563                         fprintf(stderr,
12564                                 "%s: cannot detach '%s' on '%s' from PCC: %s\n",
12565                                 argv[0], fid, mntpath, strerror(-rc2));
12566                         if (rc == 0)
12567                                 rc = rc2;
12568                 }
12569         }
12570         return rc;
12571 }
12572
12573 static int lfs_pcc_state(int argc, char **argv)
12574 {
12575         int rc = 0;
12576         const char *path;
12577         char fullpath[PATH_MAX];
12578         struct lu_pcc_state state;
12579
12580         optind = 1;
12581
12582         if (argc <= 1) {
12583                 fprintf(stderr, "%s: must specify one or more file names\n",
12584                         progname);
12585                 return CMD_HELP;
12586         }
12587
12588         while (optind < argc) {
12589                 int rc2;
12590
12591                 path = argv[optind++];
12592                 if (!realpath(path, fullpath)) {
12593                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12594                                 argv[0], path, strerror(errno));
12595                         if (rc == 0)
12596                                 rc = -EINVAL;
12597                         continue;
12598                 }
12599
12600                 rc2 = llapi_pcc_state_get(fullpath, &state);
12601                 if (rc2 < 0) {
12602                         if (rc == 0)
12603                                 rc = rc2;
12604                         fprintf(stderr,
12605                                 "%s: cannot get PCC state of '%s': %s\n",
12606                                 argv[0], path, strerror(-rc2));
12607                         continue;
12608                 }
12609
12610                 printf("file: %s", path);
12611                 printf(", type: %s", pcc_type2string(state.pccs_type));
12612                 if (state.pccs_type == LU_PCC_NONE &&
12613                     state.pccs_open_count == 0) {
12614                         printf("\n");
12615                         continue;
12616                 }
12617
12618                 printf(", PCC file: %s", state.pccs_path);
12619                 printf(", user number: %u", state.pccs_open_count);
12620                 printf(", flags: %x", state.pccs_flags);
12621                 printf("\n");
12622         }
12623         return rc;
12624 }
12625
12626 /**
12627  * lfs_pcc_list_commands() - List lfs pcc commands.
12628  * @argc: The count of command line arguments.
12629  * @argv: Array of strings for command line arguments.
12630  *
12631  * This function lists lfs pcc commands defined in pcc_cmdlist[].
12632  *
12633  * Return: 0 on success.
12634  */
12635 static int lfs_pcc_list_commands(int argc, char **argv)
12636 {
12637         char buffer[81] = "";
12638
12639         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
12640                              NULL, 0, 4);
12641
12642         return 0;
12643 }
12644
12645 /**
12646  * lfs_pcc() - Parse and execute lfs pcc commands.
12647  * @argc: The count of lfs pcc command line arguments.
12648  * @argv: Array of strings for lfs pcc command line arguments.
12649  *
12650  * This function parses lfs pcc commands and performs the
12651  * corresponding functions specified in pcc_cmdlist[].
12652  *
12653  * Return: 0 on success or an error code on failure.
12654  */
12655 static int lfs_pcc(int argc, char **argv)
12656 {
12657         char cmd[PATH_MAX];
12658         int rc = 0;
12659
12660         setlinebuf(stdout);
12661
12662         Parser_init("lfs-pcc > ", pcc_cmdlist);
12663
12664         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12665         progname = cmd;
12666         program_invocation_short_name = cmd;
12667         if (argc > 1)
12668                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
12669         else
12670                 rc = Parser_commands();
12671
12672         return rc < 0 ? -rc : rc;
12673 }
12674
12675 static int lfs_list_commands(int argc, char **argv)
12676 {
12677         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
12678
12679         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
12680
12681         return 0;
12682 }
12683
12684 int main(int argc, char **argv)
12685 {
12686         int rc;
12687
12688         /* Ensure that liblustreapi constructor has run */
12689         if (!llapi_liblustreapi_initialized())
12690                 fprintf(stderr, "liblustreapi was not properly initialized\n");
12691
12692         setlinebuf(stdout);
12693         opterr = 0;
12694
12695         Parser_init("lfs > ", cmdlist);
12696
12697         progname = program_invocation_short_name; /* Used in error messages */
12698         if (argc > 1) {
12699                 llapi_set_command_name(argv[1]);
12700                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
12701                 llapi_clear_command_name();
12702         } else {
12703                 rc = Parser_commands();
12704         }
12705
12706         return rc < 0 ? -rc : rc;
12707 }
12708
12709 #ifdef _LUSTRE_IDL_H_
12710 /* Everything we need here should be included by lustreapi.h. */
12711 # error "lfs should not depend on lustre_idl.h"
12712 #endif /* _LUSTRE_IDL_H_ */