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 static int build_layout_from_yaml_node(struct cYAML *node,
3023                                        struct llapi_layout **layout,
3024                                        struct lfs_setstripe_args *lsa,
3025                                        struct lfs_setstripe_args *prevp)
3026 {
3027         struct lfs_setstripe_args prev = { 0 };
3028         __u32 *osts = lsa->lsa_tgts;
3029         char *string;
3030         int rc = 0;
3031
3032         if (!prevp)
3033                 prevp = &prev;
3034
3035         while (node) {
3036                 string = node->cy_string;
3037
3038                 if (node->cy_type == CYAML_TYPE_OBJECT) {
3039                         /* go deep to sub blocks */
3040                         if (string && !strncmp(string, "component", 9) &&
3041                             strncmp(string, "component0", 10) &&
3042                             strncmp(string, "components", 10)) {
3043                                 rc = build_prev_component(layout, prevp, lsa,
3044                                                           true);
3045                                 if (rc)
3046                                         return rc;
3047
3048                                 /* initialize lsa. */
3049                                 setstripe_args_init(lsa);
3050                                 lsa->lsa_first_comp = false;
3051                                 lsa->lsa_tgts = osts;
3052                         }
3053
3054                         rc = build_layout_from_yaml_node(node->cy_child, layout,
3055                                                          lsa, prevp);
3056                         if (rc)
3057                                 return rc;
3058                 } else {
3059                         if (!node->cy_string)
3060                                 return -EINVAL;
3061
3062                         /* skip leading lmm_ if present, to simplify parsing */
3063                         if (strncmp(string, "lmm_", 4) == 0)
3064                                 string += 4;
3065
3066                         if (node->cy_type == CYAML_TYPE_STRING) {
3067                                 if (!strcmp(string, "lcme_extent.e_end")) {
3068                                         if (!strcmp(node->cy_valuestring, "EOF") ||
3069                                             !strcmp(node->cy_valuestring, "eof"))
3070                                                 lsa->lsa_comp_end = LUSTRE_EOF;
3071                                 } else if (!strcmp(string, "pool")) {
3072                                         lsa->lsa_pool_name = node->cy_valuestring;
3073                                 } else if (!strcmp(string, "pattern")) {
3074                                         if (!strcmp(node->cy_valuestring, "mdt"))
3075                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
3076                                         if (!strcmp(node->cy_valuestring,
3077                                                     "raid0,overstriped"))
3078                                                 lsa->lsa_pattern =
3079                                                         LLAPI_LAYOUT_OVERSTRIPING;
3080                                 } else if (!strcmp(string, "lcme_flags")) {
3081                                         rc = comp_str2flags(node->cy_valuestring,
3082                                                             &lsa->lsa_comp_flags,
3083                                                             &lsa->lsa_comp_neg_flags);
3084                                         if (rc)
3085                                                 return rc;
3086                                         /*
3087                                          * Only template flags have meaning in
3088                                          * the layout for a new file
3089                                          */
3090                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
3091                                 }
3092                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
3093                                 if (!strcmp(string, "lcm_mirror_count")) {
3094                                         lsa->lsa_mirror_count = node->cy_valueint;
3095                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
3096                                         if (node->cy_valueint == 0)
3097                                                 lsa->lsa_first_comp = true;
3098                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
3099                                         if (node->cy_valueint == -1)
3100                                                 lsa->lsa_comp_end = LUSTRE_EOF;
3101                                         else
3102                                                 lsa->lsa_comp_end = node->cy_valueint;
3103                                 } else if (!strcmp(string, "stripe_count")) {
3104                                         lsa->lsa_stripe_count = node->cy_valueint;
3105                                 } else if (!strcmp(string, "stripe_size")) {
3106                                         lsa->lsa_stripe_size = node->cy_valueint;
3107                                 } else if (!strcmp(string, "extension_size")) {
3108                                         lsa->lsa_extension_size = node->cy_valueint;
3109                                         lsa->lsa_extension_comp = true;
3110                                 } else if (!strcmp(string, "stripe_offset")) {
3111                                         lsa->lsa_stripe_off = node->cy_valueint;
3112                                 } else if (!strcmp(string, "l_ost_idx")) {
3113                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
3114                                         lsa->lsa_nr_tgts++;
3115                                 }
3116                         }
3117                 }
3118                 node = node->cy_next;
3119         }
3120
3121         if (prevp == &prev) {
3122                 rc = build_prev_component(layout, prevp, lsa, true);
3123                 if (rc)
3124                         return rc;
3125
3126                 if (!(lsa->lsa_comp_flags & LCME_FL_EXTENSION))
3127                         rc = build_component(layout, lsa, *layout != NULL);
3128         }
3129
3130         return rc;
3131 }
3132
3133 static int lfs_comp_create_from_yaml(char *template,
3134                                      struct llapi_layout **layout,
3135                                      struct lfs_setstripe_args *lsa,
3136                                      __u32 *osts)
3137 {
3138         struct cYAML *tree = NULL, *err_rc = NULL;
3139         int rc = 0;
3140
3141         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
3142         if (!tree) {
3143                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
3144                         progname, template);
3145                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
3146                                   "can't parse", &err_rc);
3147                 cYAML_print_tree2file(stderr, err_rc);
3148                 cYAML_free_tree(err_rc);
3149                 rc = -EINVAL;
3150                 goto err;
3151         }
3152
3153         /* initialize lsa for plain file */
3154         setstripe_args_init(lsa);
3155         lsa->lsa_tgts = osts;
3156
3157         rc = build_layout_from_yaml_node(tree, layout, lsa, NULL);
3158         if (rc) {
3159                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
3160                         progname, template);
3161                 goto err;
3162         }
3163         /* clean clean lsa */
3164         setstripe_args_init(lsa);
3165
3166 err:
3167         if (tree)
3168                 cYAML_free_tree(tree);
3169         return rc;
3170 }
3171
3172 /**
3173  * Get the extension size from the next (SEL) component and extend the
3174  * current component on it. The start of the next component is to be
3175  * adjusted as well.
3176  *
3177  * \param[in] layout    the current layout
3178  * \param[in] start     the start of the current component
3179  * \param[in,out] end   the end of the current component
3180  * \param[in] offset    the offset to adjust the end position to instead of
3181  *                      extension size
3182  *
3183  * \retval 0            - extended successfully
3184  * \retval < 0          - error
3185  */
3186 static int layout_extend_comp(struct llapi_layout *layout,
3187                               uint64_t start, uint64_t *end,
3188                               uint64_t offset)
3189 {
3190         uint64_t size, next_start, next_end;
3191         int rc;
3192
3193         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_NEXT);
3194         if (rc < 0) {
3195                 fprintf(stderr,
3196                         "%s setstripe: cannot move component cursor: %s\n",
3197                         progname, strerror(errno));
3198                 return rc;
3199         }
3200
3201         /*
3202          * Even if the @size will not be used below, this will fail if
3203          * this is not a SEL component - a good confirmation we are
3204          * working on right components.
3205          */
3206         rc = llapi_layout_extension_size_get(layout, &size);
3207         if (rc < 0) {
3208                 fprintf(stderr,
3209                         "%s setstripe: cannot get component ext size: %s\n",
3210                         progname, strerror(errno));
3211                 return rc;
3212         }
3213
3214         rc = llapi_layout_comp_extent_get(layout, &next_start, &next_end);
3215         if (rc) {
3216                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3217                         progname, strerror(errno));
3218                 return rc;
3219         }
3220
3221         next_start += offset ?: size;
3222         rc = llapi_layout_comp_extent_set(layout, next_start, next_end);
3223         if (rc) {
3224                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
3225                         progname, strerror(errno));
3226                 return rc;
3227         }
3228
3229         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_PREV);
3230         if (rc < 0) {
3231                 fprintf(stderr,
3232                         "%s setstripe: cannot move component cursor: %s\n",
3233                         progname, strerror(errno));
3234                 return rc;
3235         }
3236
3237         *end += offset ?: size;
3238         rc = llapi_layout_comp_extent_set(layout, start, *end);
3239         if (rc) {
3240                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
3241                         progname, strerror(errno));
3242                 return rc;
3243         }
3244
3245         return 0;
3246 }
3247
3248 /**
3249  * In 'lfs setstripe --component-add' mode, we need to fetch the extent
3250  * end of the last component in the existing file, and adjust the
3251  * first extent start of the components to be added accordingly.
3252  *
3253  * In the create mode, we need to check if the first component is an extendable
3254  * SEL component and extend its length to the extension size (first component
3255  * of the PFL file is initialised at the create time, cannot be 0-lenght.
3256  */
3257 static int layout_adjust_first_extent(char *fname, struct llapi_layout *layout,
3258                                       bool comp_add)
3259 {
3260         struct llapi_layout *head;
3261         uint64_t start = 0, prev_end = 0;
3262         uint64_t end;
3263         int rc, ret = 0;
3264
3265         if (!layout || !(comp_add || llapi_layout_is_composite(layout)))
3266                 return 0;
3267
3268         errno = 0;
3269         while (comp_add) {
3270                 head = llapi_layout_get_by_path(fname, 0);
3271                 if (!head) {
3272                         fprintf(stderr,
3273                                 "%s setstripe: cannot read layout from '%s': %s\n",
3274                                 progname, fname, strerror(errno));
3275                         return -EINVAL;
3276                 } else if (errno == ENODATA) {
3277                         /*
3278                          * file without LOVEA, this component-add will be turned
3279                          * into a component-create.
3280                          */
3281                         llapi_layout_free(head);
3282                         ret = -ENODATA;
3283
3284                         /*
3285                          * the new layout will be added to an empty one, it
3286                          * still needs to be adjusted below
3287                          */
3288                         comp_add = 0;
3289                         break;
3290                 } else if (!llapi_layout_is_composite(head)) {
3291                         fprintf(stderr,
3292                                 "%s setstripe: '%s' not a composite file\n",
3293                                 progname, fname);
3294                         llapi_layout_free(head);
3295                         return -EINVAL;
3296                 }
3297
3298                 rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
3299                 if (rc) {
3300                         fprintf(stderr,
3301                                 "%s setstripe: cannot get prev extent: %s\n",
3302                                 progname, strerror(errno));
3303                         llapi_layout_free(head);
3304                         return rc;
3305                 }
3306
3307                 llapi_layout_free(head);
3308                 break;
3309         }
3310
3311         /* Make sure we use the first component of the layout to be added. */
3312         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
3313         if (rc < 0) {
3314                 fprintf(stderr,
3315                         "%s setstripe: cannot move component cursor: %s\n",
3316                         progname, strerror(errno));
3317                 return rc;
3318         }
3319
3320         rc = llapi_layout_comp_extent_get(layout, &start, &end);
3321         if (rc) {
3322                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3323                         progname, strerror(errno));
3324                 return rc;
3325         }
3326
3327         if (start == 0 && end == 0) {
3328                 rc = layout_extend_comp(layout, start, &end,
3329                                         comp_add ? prev_end : 0);
3330                 if (rc)
3331                         return rc;
3332         }
3333
3334         if (start > prev_end || end < prev_end) {
3335                 fprintf(stderr,
3336                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
3337                         progname, start, end, prev_end);
3338                 return -EINVAL;
3339         }
3340
3341         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
3342         if (rc) {
3343                 fprintf(stderr,
3344                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
3345                         progname, prev_end, end, strerror(errno));
3346                 return rc;
3347         }
3348
3349         return ret;
3350 }
3351
3352 static int mirror_adjust_first_extents(struct mirror_args *list)
3353 {
3354         int rc = 0;
3355
3356         if (!list)
3357                 return 0;
3358
3359         while (list) {
3360                 rc = layout_adjust_first_extent(NULL, list->m_layout, false);
3361                 if (rc)
3362                         break;
3363                 list = list->m_next;
3364         }
3365
3366         return rc;
3367 }
3368
3369 static inline bool arg_is_eof(char *arg)
3370 {
3371         return !strncmp(arg, "-1", strlen("-1")) ||
3372                !strncmp(arg, "EOF", strlen("EOF")) ||
3373                !strncmp(arg, "eof", strlen("eof"));
3374 }
3375
3376 /**
3377  * lfs_mirror_alloc() - Allocate a mirror argument structure.
3378  *
3379  * Return: Valid mirror_args pointer on success and
3380  *         NULL if memory allocation fails.
3381  */
3382 static struct mirror_args *lfs_mirror_alloc(void)
3383 {
3384         struct mirror_args *mirror = NULL;
3385
3386         while (1) {
3387                 mirror = calloc(1, sizeof(*mirror));
3388                 if (mirror) {
3389                         mirror->m_inherit = false;
3390                         break;
3391                 }
3392
3393                 sleep(1);
3394         }
3395
3396         return mirror;
3397 }
3398
3399 /**
3400  * lfs_mirror_free() - Free memory allocated for a mirror argument
3401  *                     structure.
3402  * @mirror: Previously allocated mirror argument structure by
3403  *          lfs_mirror_alloc().
3404  *
3405  * Free memory allocated for @mirror.
3406  *
3407  * Return: void.
3408  */
3409 static void lfs_mirror_free(struct mirror_args *mirror)
3410 {
3411         if (mirror->m_layout)
3412                 llapi_layout_free(mirror->m_layout);
3413         free(mirror);
3414 }
3415
3416 /**
3417  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
3418  * @mirror_list: Previously allocated mirror list.
3419  *
3420  * Free memory allocated for @mirror_list.
3421  *
3422  * Return: void.
3423  */
3424 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
3425 {
3426         struct mirror_args *next_mirror = NULL;
3427
3428         while (mirror_list) {
3429                 next_mirror = mirror_list->m_next;
3430                 lfs_mirror_free(mirror_list);
3431                 mirror_list = next_mirror;
3432         }
3433 }
3434
3435 enum {
3436         LFS_POOL_OPT = 3,
3437         LFS_COMP_COUNT_OPT,
3438         LFS_COMP_START_OPT,
3439         LFS_COMP_FLAGS_OPT,
3440         LFS_COMP_DEL_OPT,
3441         LFS_COMP_SET_OPT,
3442         LFS_COMP_ADD_OPT,
3443         LFS_COMP_NO_VERIFY_OPT,
3444         LFS_PROJID_OPT,
3445         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
3446         LFS_MIRROR_ID_OPT,
3447         LFS_MIRROR_STATE_OPT,
3448         LFS_LAYOUT_COPY,
3449         LFS_MIRROR_INDEX_OPT,
3450         LFS_LAYOUT_FOREIGN_OPT,
3451         LFS_MODE_OPT,
3452         LFS_NEWERXY_OPT,
3453         LFS_INHERIT_RR_OPT,
3454         LFS_FIND_PERM,
3455 };
3456
3457 /* functions */
3458 static int lfs_setstripe_internal(int argc, char **argv,
3459                                   enum setstripe_origin opc)
3460 {
3461         struct lfs_setstripe_args        lsa = { 0 };
3462         struct llapi_stripe_param       *param = NULL;
3463         struct find_param                migrate_mdt_param = {
3464                 .fp_max_depth = -1,
3465                 .fp_mdt_index = -1,
3466         };
3467         char                            *fname;
3468         int                              result = 0;
3469         int                              result2 = 0;
3470         char                            *end;
3471         int                              c;
3472         int                              delete = 0;
3473         unsigned long long               size_units = 1;
3474         bool                             migrate_mode = false;
3475         bool                             migrate_mdt_mode = false;
3476         bool                             setstripe_mode = false;
3477         bool                             migration_block = false;
3478         __u64                            migration_flags = 0;
3479         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
3480         int                              comp_del = 0, comp_set = 0;
3481         int                              comp_add = 0;
3482         __u32                            comp_id = 0;
3483         struct llapi_layout             *layout = NULL;
3484         struct llapi_layout             **lpp = &layout;
3485         bool                             mirror_mode = false;
3486         bool                             has_m_file = false;
3487         __u32                            mirror_count = 0;
3488         enum mirror_flags                mirror_flags = 0;
3489         struct mirror_args              *mirror_list = NULL;
3490         struct mirror_args              *new_mirror = NULL;
3491         struct mirror_args              *last_mirror = NULL;
3492         __u16                            mirror_id = 0;
3493         char                             cmd[PATH_MAX];
3494         bool from_yaml = false;
3495         bool from_copy = false;
3496         char *template = NULL;
3497         bool foreign_mode = false;
3498         char *xattr = NULL;
3499         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
3500         char *mode_opt = NULL;
3501         mode_t previous_umask = 0;
3502         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
3503
3504         struct option long_opts[] = {
3505 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
3506 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3507         /* --block is only valid in migrate mode */
3508         { .val = 'b',   .name = "block",        .has_arg = no_argument },
3509 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
3510         { .val = LFS_COMP_ADD_OPT,
3511                         .name = "comp-add",     .has_arg = no_argument },
3512         { .val = LFS_COMP_ADD_OPT,
3513                         .name = "component-add", .has_arg = no_argument },
3514         { .val = LFS_COMP_DEL_OPT,
3515                         .name = "comp-del",     .has_arg = no_argument },
3516         { .val = LFS_COMP_DEL_OPT,
3517                         .name = "component-del", .has_arg = no_argument },
3518         { .val = LFS_COMP_FLAGS_OPT,
3519                         .name = "comp-flags",   .has_arg = required_argument },
3520         { .val = LFS_COMP_FLAGS_OPT,
3521                         .name = "component-flags",
3522                                                 .has_arg = required_argument },
3523         { .val = LFS_COMP_SET_OPT,
3524                         .name = "comp-set",     .has_arg = no_argument },
3525         { .val = LFS_COMP_SET_OPT,
3526                         .name = "component-set",
3527                                                 .has_arg = no_argument},
3528         { .val = LFS_COMP_NO_VERIFY_OPT,
3529                         .name = "no-verify",    .has_arg = no_argument},
3530         { .val = LFS_LAYOUT_FLAGS_OPT,
3531                         .name = "flags",        .has_arg = required_argument},
3532         { .val = LFS_LAYOUT_FOREIGN_OPT,
3533                         .name = "foreign",      .has_arg = optional_argument},
3534         { .val = LFS_MIRROR_ID_OPT,
3535                         .name = "mirror-id",    .has_arg = required_argument},
3536         { .val = LFS_MODE_OPT,
3537                         .name = "mode",         .has_arg = required_argument},
3538         { .val = LFS_LAYOUT_COPY,
3539                         .name = "copy",         .has_arg = required_argument},
3540         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
3541         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
3542         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
3543         { .val = 'C',   .name = "overstripe-count",
3544                                                 .has_arg = required_argument},
3545         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
3546         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
3547         /* --non-direct is only valid in migrate mode */
3548         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
3549         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
3550         { .val = 'E',   .name = "component-end",
3551                                                 .has_arg = required_argument},
3552         { .val = 'f',   .name = "file",         .has_arg = required_argument },
3553 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3554 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
3555 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3556         { .val = 'h',   .name = "help",         .has_arg = no_argument },
3557         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
3558         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
3559         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
3560         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
3561         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
3562 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
3563         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3564         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
3565         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
3566         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
3567         /* --non-block is only valid in migrate mode */
3568         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
3569         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
3570         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
3571 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3572         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
3573         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
3574 #endif
3575         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3576 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3577 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3578 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3579 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3580         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3581         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3582 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3583 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3584 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3585 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3586         /* --verbose is only valid in migrate mode */
3587         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
3588         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
3589 /* dirstripe { .val = 'X',.name = "max-inherit",.has_arg = required_argument }*/
3590         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
3591         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument},
3592         { .val = 'z',   .name = "extension-size", .has_arg = required_argument},
3593         { .name = NULL } };
3594
3595         setstripe_args_init(&lsa);
3596
3597         migrate_mode = (opc == SO_MIGRATE);
3598         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
3599         setstripe_mode = (opc == SO_SETSTRIPE);
3600         if (opc == SO_MIRROR_DELETE) {
3601                 delete = 1;
3602                 mirror_flags = MF_DESTROY;
3603         }
3604
3605         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
3606         progname = cmd;
3607         while ((c = getopt_long(argc, argv,
3608                                 "bc:C:dDE:f:hH:i:I:m:N::no:p:L:s:S:vx:y:z:",
3609                                 long_opts, NULL)) >= 0) {
3610                 size_units = 1;
3611                 switch (c) {
3612                 case 0:
3613                         /* Long options. */
3614                         break;
3615                 case LFS_COMP_ADD_OPT:
3616                         comp_add = 1;
3617                         break;
3618                 case LFS_COMP_DEL_OPT:
3619                         comp_del = 1;
3620                         break;
3621                 case LFS_COMP_FLAGS_OPT:
3622                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
3623                                                 &lsa.lsa_comp_neg_flags);
3624                         if (result != 0)
3625                                 goto usage_error;
3626                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
3627                                 fprintf(stderr,
3628                                         "%s: inverted flags are not supported\n",
3629                                         progname);
3630                                 goto usage_error;
3631                         }
3632                         break;
3633                 case LFS_COMP_SET_OPT:
3634                         comp_set = 1;
3635                         break;
3636                 case LFS_COMP_NO_VERIFY_OPT:
3637                         mirror_flags |= MF_NO_VERIFY;
3638                         break;
3639                 case LFS_MIRROR_ID_OPT: {
3640                         unsigned long int id;
3641
3642                         errno = 0;
3643                         id = strtoul(optarg, &end, 0);
3644                         if (errno != 0 || *end != '\0' || id == 0 ||
3645                             id > UINT16_MAX) {
3646                                 fprintf(stderr,
3647                                         "%s %s: invalid mirror ID '%s'\n",
3648                                         progname, argv[0], optarg);
3649                                 goto usage_error;
3650                         }
3651
3652                         mirror_id = (__u16)id;
3653                         break;
3654                 }
3655                 case LFS_LAYOUT_FLAGS_OPT: {
3656                         uint32_t neg_flags;
3657
3658                         /* check for numeric flags (foreign and mirror cases) */
3659                         if (setstripe_mode && !mirror_mode && !last_mirror) {
3660                                 errno = 0;
3661                                 flags = strtoul(optarg, &end, 16);
3662                                 if (errno != 0 || *end != '\0' ||
3663                                     flags >= UINT32_MAX) {
3664                                         fprintf(stderr,
3665                                                 "%s %s: invalid hex flags '%s'\n",
3666                                                 progname, argv[0], optarg);
3667                                         return CMD_HELP;
3668                                 }
3669                                 if (!foreign_mode) {
3670                                         fprintf(stderr,
3671                                                 "%s %s: hex flags must be specified with --foreign option\n",
3672                                                 progname, argv[0]);
3673                                         return CMD_HELP;
3674                                 }
3675                                 break;
3676                         }
3677
3678                         if (!mirror_mode || !last_mirror) {
3679                                 fprintf(stderr,
3680                                         "error: %s: --flags must be specified with --mirror-count|-N option\n",
3681                                         progname);
3682                                 goto usage_error;
3683                         }
3684
3685                         result = comp_str2flags(optarg, &last_mirror->m_flags,
3686                                                 &neg_flags);
3687                         if (result != 0)
3688                                 goto usage_error;
3689
3690                         if (neg_flags) {
3691                                 fprintf(stderr,
3692                                         "%s: inverted flags are not supported\n",
3693                                         progname);
3694                                 result = -EINVAL;
3695                                 goto usage_error;
3696                         }
3697                         if (last_mirror->m_flags & ~LCME_USER_MIRROR_FLAGS) {
3698                                 fprintf(stderr,
3699                                         "%s: unsupported mirror flags: %s\n",
3700                                         progname, optarg);
3701                                 result = -EINVAL;
3702                                 goto error;
3703                         }
3704                         break;
3705                 }
3706                 case LFS_LAYOUT_FOREIGN_OPT:
3707                         if (optarg) {
3708                                 /* check pure numeric */
3709                                 type = strtoul(optarg, &end, 0);
3710                                 if (*end) {
3711                                         /* check name */
3712                                         type = check_foreign_type_name(optarg);
3713                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
3714                                                 fprintf(stderr,
3715                                                         "%s %s: unrecognized foreign type '%s'\n",
3716                                                         progname, argv[0],
3717                                                         optarg);
3718                                                 return CMD_HELP;
3719                                         }
3720                                 } else if (type >= UINT32_MAX) {
3721                                         fprintf(stderr,
3722                                                 "%s %s: invalid foreign type '%s'\n",
3723                                                 progname, argv[0], optarg);
3724                                         return CMD_HELP;
3725                                 }
3726                         }
3727                         foreign_mode = true;
3728                         break;
3729                 case LFS_MODE_OPT:
3730                         mode_opt = optarg;
3731                         if (mode_opt) {
3732                                 mode = strtoul(mode_opt, &end, 8);
3733                                 if (*end != '\0') {
3734                                         fprintf(stderr,
3735                                                 "%s %s: bad mode '%s'\n",
3736                                                 progname, argv[0], mode_opt);
3737                                         return CMD_HELP;
3738                                 }
3739                                 previous_umask = umask(0);
3740                         }
3741                         break;
3742                 case LFS_LAYOUT_COPY:
3743                         from_copy = true;
3744                         template = optarg;
3745                         break;
3746                 case 'b':
3747                         if (!migrate_mode) {
3748                                 fprintf(stderr,
3749                                         "%s %s: -b|--block valid only for migrate command\n",
3750                                         progname, argv[0]);
3751                                 goto usage_error;
3752                         }
3753                         migration_block = true;
3754                         break;
3755                 case 'C':
3756                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3757                                 fprintf(stderr,
3758                                         "%s %s: -C|--overstripe-count incompatible with DoM layout\n",
3759                                         progname, argv[0]);
3760                                 goto usage_error;
3761                         }
3762                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3763                         /* fall through */
3764                 case 'c':
3765                         errno = 0;
3766                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3767                         if (errno != 0 || *end != '\0'||
3768                             lsa.lsa_stripe_count < -1 ||
3769                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
3770                                 fprintf(stderr,
3771                                         "%s %s: invalid stripe count '%s'\n",
3772                                         progname, argv[0], optarg);
3773                                 goto usage_error;
3774                         }
3775
3776                         if (lsa.lsa_stripe_count == -1)
3777                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
3778                         break;
3779                 case 'd':
3780                         /* delete the default striping pattern */
3781                         delete = 1;
3782                         if (opc == SO_MIRROR_SPLIT) {
3783                                 if (has_m_file) {
3784                                         fprintf(stderr,
3785                                               "%s %s: -d cannot used with -f\n",
3786                                                 progname, argv[0]);
3787                                         goto usage_error;
3788                                 }
3789                                 mirror_flags |= MF_DESTROY;
3790                         }
3791                         break;
3792                 case 'D':
3793                         if (!migrate_mode) {
3794                                 fprintf(stderr,
3795                                         "%s %s: -D|--non-direct is valid only for migrate command\n",
3796                                         progname, argv[0]);
3797                                 goto usage_error;
3798                         }
3799                         migration_flags |= MIGRATION_NONDIRECT;
3800                         break;
3801                 case 'E':
3802                         if (lsa.lsa_comp_end != 0) {
3803                                 result = comp_args_to_layout(lpp, &lsa, true);
3804                                 if (result) {
3805                                         fprintf(stderr, "%s: invalid layout\n",
3806                                                 progname);
3807                                         goto usage_error;
3808                                 }
3809
3810                                 setstripe_args_init_inherit(&lsa);
3811                         }
3812
3813                         if (arg_is_eof(optarg)) {
3814                                 lsa.lsa_comp_end = LUSTRE_EOF;
3815                         } else {
3816                                 result = llapi_parse_size(optarg,
3817                                                           &lsa.lsa_comp_end,
3818                                                           &size_units, 0);
3819                                 /* assume units of KB if too small */
3820                                 if (lsa.lsa_comp_end < 4096)
3821                                         lsa.lsa_comp_end *= 1024;
3822                                 if (result ||
3823                                     lsa.lsa_comp_end & (LOV_MIN_STRIPE_SIZE - 1)) {
3824                                         fprintf(stderr,
3825                                                 "%s %s: invalid component end '%s'\n",
3826                                                 progname, argv[0], optarg);
3827                                         goto usage_error;
3828                                 }
3829                         }
3830                         break;
3831                 case 'H':
3832                         if (!migrate_mode) {
3833                                 fprintf(stderr,
3834                                         "--mdt-hash is valid only for migrate command\n");
3835                                 return CMD_HELP;
3836                         }
3837
3838                         lsa.lsa_pattern = check_hashtype(optarg);
3839                         if (lsa.lsa_pattern == 0) {
3840                                 fprintf(stderr,
3841                                         "%s %s: bad stripe hash type '%s'\n",
3842                                         progname, argv[0], optarg);
3843                                 return CMD_HELP;
3844                         }
3845                         break;
3846                 case 'i':
3847                         errno = 0;
3848                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3849                         if (errno != 0 || *end != '\0' ||
3850                             lsa.lsa_stripe_off < -1 ||
3851                             lsa.lsa_stripe_off > LOV_V1_INSANE_STRIPE_COUNT) {
3852                                 fprintf(stderr,
3853                                         "%s %s: invalid stripe offset '%s'\n",
3854                                         progname, argv[0], optarg);
3855                                 goto usage_error;
3856                         }
3857                         if (lsa.lsa_stripe_off == -1)
3858                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3859                         break;
3860                 case 'I':
3861                         comp_id = strtoul(optarg, &end, 0);
3862                         if (*end != '\0' || comp_id == 0 ||
3863                             comp_id > LCME_ID_MAX) {
3864                                 fprintf(stderr,
3865                                         "%s %s: invalid component ID '%s'\n",
3866                                         progname, argv[0], optarg);
3867                                 goto usage_error;
3868                         }
3869                         break;
3870                 case 'f':
3871                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3872                                 fprintf(stderr,
3873                                         "error: %s: invalid option: %s\n",
3874                                         progname, argv[optopt + 1]);
3875                                 goto usage_error;
3876                         }
3877                         if (opc == SO_MIRROR_EXTEND) {
3878                                 if (!last_mirror) {
3879                                         fprintf(stderr,
3880                                 "error: %s: '-N' must exist in front of '%s'\n",
3881                                                 progname, argv[optopt + 1]);
3882                                         goto usage_error;
3883                                 }
3884                                 last_mirror->m_file = optarg;
3885                                 last_mirror->m_count = 1;
3886                         } else {
3887                                 /* mirror split */
3888                                 if (!mirror_list)
3889                                         mirror_list = lfs_mirror_alloc();
3890                                 mirror_list->m_file = optarg;
3891                         }
3892                         has_m_file = true;
3893                         break;
3894                 case 'L':
3895                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3896                                 /* Can be only the first component */
3897                                 if (layout) {
3898                                         result = -EINVAL;
3899                                         fprintf(stderr,
3900                                                 "error: 'mdt' layout can be only the first one\n");
3901                                         goto error;
3902                                 }
3903                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3904                                         result = -EFBIG;
3905                                         fprintf(stderr,
3906                                                 "error: 'mdt' layout size is too big\n");
3907                                         goto error;
3908                                 }
3909                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3910                                 lsa.lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
3911                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3912                                 result = -EINVAL;
3913                                 fprintf(stderr,
3914                                         "error: layout '%s' is unknown, supported layouts are: 'mdt', 'raid0'\n",
3915                                         argv[optind]);
3916                                 goto error;
3917                         }
3918                         break;
3919                 case 'm':
3920                         if (!migrate_mode) {
3921                                 fprintf(stderr,
3922                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3923                                         progname, argv[0]);
3924                                 goto usage_error;
3925                         }
3926                         migrate_mdt_mode = true;
3927                         lsa.lsa_nr_tgts = parse_targets(tgts,
3928                                                 sizeof(tgts) / sizeof(__u32),
3929                                                 lsa.lsa_nr_tgts, optarg, NULL);
3930                         if (lsa.lsa_nr_tgts < 0) {
3931                                 fprintf(stderr,
3932                                         "%s: invalid MDT target(s) '%s'\n",
3933                                         progname, optarg);
3934                                 goto usage_error;
3935                         }
3936
3937                         lsa.lsa_tgts = tgts;
3938                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3939                                 lsa.lsa_stripe_off = tgts[0];
3940                         break;
3941                 case 'n':
3942                         if (!migrate_mode) {
3943                                 fprintf(stderr,
3944                                         "%s %s: -n|--non-block valid only for migrate command\n",
3945                                         progname, argv[0]);
3946                                 goto usage_error;
3947                         }
3948                         migration_flags |= MIGRATION_NONBLOCK;
3949                         break;
3950                 case 'N':
3951                         if (opc == SO_SETSTRIPE) {
3952                                 opc = SO_MIRROR_CREATE;
3953                                 mirror_mode = true;
3954                         }
3955                         mirror_count = 1;
3956                         if (optarg) {
3957                                 errno = 0;
3958                                 mirror_count = strtoul(optarg, &end, 0);
3959                                 if (errno != 0 || *end != '\0' ||
3960                                     mirror_count == 0 ||
3961                                     mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
3962                                         fprintf(stderr,
3963                                                 "error: %s: bad mirror count: %s\n",
3964                                                 progname, optarg);
3965                                         result = -EINVAL;
3966                                         goto error;
3967                                 }
3968                         }
3969
3970                         new_mirror = lfs_mirror_alloc();
3971                         new_mirror->m_count = mirror_count;
3972
3973                         if (!mirror_list)
3974                                 mirror_list = new_mirror;
3975
3976                         if (last_mirror) {
3977                                 /* wrap up last mirror */
3978                                 if (!setstripe_args_specified(&lsa))
3979                                         last_mirror->m_inherit = true;
3980                                 if (lsa.lsa_comp_end == 0)
3981                                         lsa.lsa_comp_end = LUSTRE_EOF;
3982
3983                                 result = comp_args_to_layout(lpp, &lsa, true);
3984                                 if (result) {
3985                                         lfs_mirror_free(new_mirror);
3986                                         goto error;
3987                                 }
3988
3989                                 setstripe_args_init_inherit(&lsa);
3990
3991                                 last_mirror->m_next = new_mirror;
3992                         }
3993
3994                         last_mirror = new_mirror;
3995                         lpp = &last_mirror->m_layout;
3996                         break;
3997                 case 'o':
3998 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3999                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
4000                                 fprintf(stderr,
4001                                         "warning: '--ost-list' is deprecated, use '--ost' instead\n");
4002 #endif
4003                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
4004                                 fprintf(stderr,
4005                                         "%s %s: -o|--ost incompatible with DoM layout\n",
4006                                         progname, argv[0]);
4007                                 goto usage_error;
4008                         }
4009                         /*
4010                          * -o allows overstriping, and must note it because
4011                          * parse_targets is shared with MDT striping, which
4012                          * does not allow duplicates
4013                          */
4014                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
4015                         lsa.lsa_nr_tgts = parse_targets(tgts,
4016                                                 sizeof(tgts) / sizeof(__u32),
4017                                                 lsa.lsa_nr_tgts, optarg,
4018                                                 &lsa.lsa_pattern);
4019                         if (lsa.lsa_nr_tgts < 0) {
4020                                 fprintf(stderr,
4021                                         "%s %s: invalid OST target(s) '%s'\n",
4022                                         progname, argv[0], optarg);
4023                                 goto usage_error;
4024                         }
4025
4026                         lsa.lsa_tgts = tgts;
4027                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4028                                 lsa.lsa_stripe_off = tgts[0];
4029                         break;
4030                 case 'p':
4031                         if (!optarg)
4032                                 goto usage_error;
4033                         lsa.lsa_pool_name = optarg;
4034
4035                         if (strlen(lsa.lsa_pool_name) == 0 ||
4036                             strncmp(lsa.lsa_pool_name, "none",
4037                                     LOV_MAXPOOLNAME) == 0)
4038                                 lsa.lsa_pool_name = NULL;
4039                         break;
4040                 case 'S':
4041                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
4042                                                   &size_units, 0);
4043                         /* assume units of KB if too small to be valid */
4044                         if (lsa.lsa_stripe_size < 4096)
4045                                 lsa.lsa_stripe_size *= 1024;
4046                         if (result ||
4047                             lsa.lsa_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
4048                                 fprintf(stderr,
4049                                         "%s %s: invalid stripe size '%s'\n",
4050                                         progname, argv[0], optarg);
4051                                 goto usage_error;
4052                         }
4053                         break;
4054                 case 'v':
4055                         if (!migrate_mode) {
4056                                 fprintf(stderr,
4057                                         "%s %s: -v|--verbose valid only for migrate command\n",
4058                                         progname, argv[0]);
4059                                 goto usage_error;
4060                         }
4061                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
4062                         migration_flags = MIGRATION_VERBOSE;
4063                         break;
4064                 case 'x':
4065                         xattr = optarg;
4066                         break;
4067                 case 'y':
4068                         from_yaml = true;
4069                         template = optarg;
4070                         break;
4071                 case 'z':
4072                         result = llapi_parse_size(optarg,
4073                                                   &lsa.lsa_extension_size,
4074                                                   &size_units, 0);
4075                         if (result) {
4076                                 fprintf(stderr,
4077                                         "%s %s: invalid extension size '%s'\n",
4078                                         progname, argv[0], optarg);
4079                                 goto usage_error;
4080                         }
4081
4082                         lsa.lsa_extension_comp = true;
4083                         break;
4084                 default:
4085                         fprintf(stderr, "%s: unrecognized option '%s'\n",
4086                                 progname, argv[optind - 1]);
4087                 case 'h':
4088                         goto usage_error;
4089                 }
4090         }
4091
4092         fname = argv[optind];
4093
4094         if (optind == argc) {
4095                 fprintf(stderr, "%s %s: FILE must be specified\n",
4096                         progname, argv[0]);
4097                 goto usage_error;
4098         }
4099
4100         /* lfs migrate $filename should keep the file's layout by default */
4101         if (migrate_mode && !setstripe_args_specified(&lsa) && !layout &&
4102             !from_yaml)
4103                 from_copy = true;
4104
4105         if (xattr && !foreign_mode) {
4106                 /*
4107                  * only print a warning as this is harmless and will be ignored
4108                  */
4109                 fprintf(stderr,
4110                         "%s %s: xattr has been specified for non-foreign layout\n",
4111                         progname, argv[0]);
4112         } else if (foreign_mode && !xattr) {
4113                 fprintf(stderr,
4114                         "%s %s: xattr must be provided in foreign mode\n",
4115                         progname, argv[0]);
4116                 goto usage_error;
4117         }
4118
4119         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
4120             comp_set || comp_id || delete || from_copy ||
4121             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
4122             lsa.lsa_tgts)) {
4123                 fprintf(stderr,
4124                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
4125                         progname, argv[0]);
4126                 return CMD_HELP;
4127         }
4128
4129         if (mirror_mode && mirror_count == 0) {
4130                 fprintf(stderr,
4131                         "error: %s: --mirror-count|-N option is required\n",
4132                         progname);
4133                 result = -EINVAL;
4134                 goto error;
4135         }
4136
4137         if (mirror_mode) {
4138                 if (!setstripe_args_specified(&lsa))
4139                         last_mirror->m_inherit = true;
4140                 if (lsa.lsa_comp_end == 0)
4141                         lsa.lsa_comp_end = LUSTRE_EOF;
4142         }
4143
4144         if (lsa.lsa_comp_end != 0) {
4145                 result = comp_args_to_layout(lpp, &lsa, true);
4146                 if (result) {
4147                         fprintf(stderr, "error: %s: invalid layout\n",
4148                                 progname);
4149                         result = -EINVAL;
4150                         goto error;
4151                 }
4152         }
4153
4154         if (mirror_flags & MF_NO_VERIFY) {
4155                 if (opc != SO_MIRROR_EXTEND) {
4156                         fprintf(stderr,
4157                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
4158                                 progname);
4159                         result = -EINVAL;
4160                         goto error;
4161                 } else if (!has_m_file) {
4162                         fprintf(stderr,
4163                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
4164                                 progname);
4165                         result = -EINVAL;
4166                         goto error;
4167                 }
4168         }
4169
4170         if (comp_set && !comp_id && !lsa.lsa_pool_name) {
4171                 fprintf(stderr,
4172                         "%s %s: --component-set doesn't have component-id set\n",
4173                         progname, argv[0]);
4174                 goto usage_error;
4175         }
4176
4177         if ((delete + comp_set + comp_del + comp_add) > 1) {
4178                 fprintf(stderr,
4179                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
4180                         progname, argv[0]);
4181                 goto usage_error;
4182         }
4183
4184         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
4185                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
4186                 fprintf(stderr,
4187                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
4188                         progname, argv[0]);
4189                 goto usage_error;
4190         }
4191
4192         if ((comp_set || comp_del) &&
4193             (setstripe_args_specified(&lsa) || layout != NULL)) {
4194                 fprintf(stderr,
4195                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
4196                         progname, argv[0]);
4197                 goto usage_error;
4198         }
4199
4200         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
4201                 fprintf(stderr,
4202                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
4203                         progname, argv[0]);
4204                 goto usage_error;
4205         }
4206
4207         if (comp_add || comp_del) {
4208                 struct stat st;
4209
4210                 result = lstat(fname, &st);
4211                 if (result == 0 && S_ISDIR(st.st_mode)) {
4212                         fprintf(stderr,
4213                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
4214                                 progname);
4215                         goto usage_error;
4216                 }
4217
4218                 if (mirror_mode) {
4219                         fprintf(stderr,
4220                                 "error: %s: can't use --component-add or --component-del for mirror operation\n",
4221                                 progname);
4222                         goto usage_error;
4223                 }
4224         }
4225
4226         if (comp_add) {
4227                 if (!layout) {
4228                         fprintf(stderr,
4229                                 "%s %s: option -E must be specified with --component-add\n",
4230                                 progname, argv[0]);
4231                         goto usage_error;
4232                 }
4233         }
4234
4235         if (from_yaml && from_copy) {
4236                 fprintf(stderr,
4237                         "%s: can't specify --yaml and --copy together\n",
4238                         progname);
4239                 goto error;
4240         }
4241
4242         if ((from_yaml || from_copy) &&
4243             (setstripe_args_specified(&lsa) || layout != NULL)) {
4244                 fprintf(stderr,
4245                         "error: %s: can't specify --yaml or --copy with -c, -S, -i, -o, -p or -E options.\n",
4246                         argv[0]);
4247                 goto error;
4248         }
4249
4250         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
4251                 fprintf(stderr,
4252                         "%s %s: options --non-block and --block are mutually exclusive\n",
4253                         progname, argv[0]);
4254                 goto usage_error;
4255         }
4256
4257         if (!comp_del && !comp_set && opc != SO_MIRROR_SPLIT &&
4258             opc != SO_MIRROR_DELETE && comp_id != 0) {
4259                 fprintf(stderr,
4260                         "%s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
4261                         progname);
4262                 goto usage_error;
4263         }
4264
4265         if (migrate_mdt_mode) {
4266                 struct lmv_user_md *lmu;
4267
4268                 /* initialize migrate mdt parameters */
4269                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
4270                                                  LMV_USER_MAGIC_SPECIFIC));
4271                 if (!lmu) {
4272                         fprintf(stderr,
4273                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
4274                                 progname, argv[0], strerror(ENOMEM));
4275                         result = -ENOMEM;
4276                         goto error;
4277                 }
4278                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
4279                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
4280                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
4281                         fprintf(stderr,
4282                                 "%s %s: migrate should specify MDT index\n",
4283                                 progname, argv[0]);
4284                         free(lmu);
4285                         goto usage_error;
4286                 }
4287                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
4288                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
4289                         lmu->lum_hash_type = lsa.lsa_pattern;
4290                 else
4291                         lmu->lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
4292                 if (lsa.lsa_pool_name) {
4293                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
4294                                 sizeof(lmu->lum_pool_name) - 1);
4295                         lmu->lum_pool_name[sizeof(lmu->lum_pool_name) - 1] = 0;
4296                 }
4297                 if (lsa.lsa_nr_tgts > 1) {
4298                         int i;
4299
4300                         if (lsa.lsa_stripe_count > 0 &&
4301                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
4302                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
4303                                 fprintf(stderr,
4304                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
4305                                         progname, lsa.lsa_stripe_count,
4306                                         lsa.lsa_nr_tgts);
4307                                 free(lmu);
4308                                 goto usage_error;
4309                         }
4310
4311                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
4312                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
4313                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
4314                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
4315                 } else {
4316                         lmu->lum_magic = LMV_USER_MAGIC;
4317                 }
4318
4319                 migrate_mdt_param.fp_lmv_md = lmu;
4320                 migrate_mdt_param.fp_migrate = 1;
4321         } else if (!layout) {
4322                 if (lsa_args_stripe_count_check(&lsa))
4323                         goto usage_error;
4324
4325                 /* initialize stripe parameters */
4326                 param = calloc(1, offsetof(typeof(*param),
4327                                lsp_osts[lsa.lsa_nr_tgts]));
4328                 if (!param) {
4329                         fprintf(stderr,
4330                                 "%s %s: cannot allocate memory for parameters: %s\n",
4331                                 progname, argv[0], strerror(ENOMEM));
4332                         result = -ENOMEM;
4333                         goto error;
4334                 }
4335
4336                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
4337                         param->lsp_stripe_size = lsa.lsa_stripe_size;
4338                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
4339                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
4340                                 param->lsp_stripe_count = -1;
4341                         else
4342                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
4343                 }
4344                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4345                         param->lsp_stripe_offset = -1;
4346                 else
4347                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
4348                 param->lsp_stripe_pattern =
4349                                 llapi_pattern_to_lov(lsa.lsa_pattern);
4350                 if (param->lsp_stripe_pattern == EINVAL) {
4351                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
4352                                 argv[0]);
4353                         free(param);
4354                         goto usage_error;
4355                 }
4356                 param->lsp_pool = lsa.lsa_pool_name;
4357                 param->lsp_is_specific = false;
4358
4359                 if (lsa.lsa_nr_tgts > 0) {
4360                         param->lsp_is_specific = true;
4361                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
4362                         memcpy(param->lsp_osts, tgts,
4363                                sizeof(*tgts) * lsa.lsa_nr_tgts);
4364                 }
4365         }
4366
4367         if (from_yaml) {
4368                 /* generate a layout from a YAML template */
4369                 result = lfs_comp_create_from_yaml(template, &layout,
4370                                                    &lsa, tgts);
4371                 if (result) {
4372                         fprintf(stderr,
4373                                 "error: %s: can't create composite layout from template file %s\n",
4374                                 argv[0], template);
4375                         goto error;
4376                 }
4377         }
4378
4379         if (layout != NULL || mirror_list != NULL) {
4380                 if (mirror_list)
4381                         result = mirror_adjust_first_extents(mirror_list);
4382                 else
4383                         result = layout_adjust_first_extent(fname, layout,
4384                                                             comp_add);
4385                 if (result == -ENODATA)
4386                         comp_add = 0;
4387                 else if (result != 0) {
4388                         fprintf(stderr, "error: %s: invalid layout\n",
4389                                 progname);
4390                         goto error;
4391                 }
4392         }
4393
4394         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
4395                 if (from_copy) {
4396                         layout = llapi_layout_get_by_path(template ?: fname, 0);
4397                         if (!layout) {
4398                                 fprintf(stderr,
4399                                         "%s: can't create composite layout from file %s: %s\n",
4400                                         progname, template ?: fname,
4401                                         strerror(errno));
4402                                 result = -errno;
4403                                 goto error;
4404                         }
4405                 }
4406
4407                 if (migrate_mdt_mode) {
4408                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
4409                 } else if (migrate_mode) {
4410                         result = lfs_migrate(fname, migration_flags, param,
4411                                              layout);
4412                 } else if (comp_set != 0) {
4413                         result = lfs_component_set(fname, comp_id,
4414                                                    lsa.lsa_pool_name,
4415                                                    lsa.lsa_comp_flags,
4416                                                    lsa.lsa_comp_neg_flags);
4417                 } else if (comp_del != 0) {
4418                         result = lfs_component_del(fname, comp_id,
4419                                                    lsa.lsa_comp_flags,
4420                                                    lsa.lsa_comp_neg_flags);
4421                 } else if (comp_add != 0) {
4422                         result = lfs_component_add(fname, layout);
4423                 } else if (opc == SO_MIRROR_CREATE) {
4424                         result = mirror_create(fname, mirror_list);
4425                 } else if (opc == SO_MIRROR_EXTEND) {
4426                         result = mirror_extend(fname, mirror_list,
4427                                                mirror_flags);
4428                 } else if (opc == SO_MIRROR_SPLIT || opc == SO_MIRROR_DELETE) {
4429                         if (!mirror_id && !comp_id && !lsa.lsa_pool_name) {
4430                                 fprintf(stderr,
4431                                         "%s: no mirror id, component id, or pool name specified to delete from '%s'\n",
4432                                         progname, fname);
4433                                 goto usage_error;
4434                         }
4435                         if (lsa.lsa_pool_name)
4436                                 mirror_flags |= MF_COMP_POOL;
4437                         else if (mirror_id != 0)
4438                                 comp_id = mirror_id;
4439                         else
4440                                 mirror_flags |= MF_COMP_ID;
4441                         if (has_m_file && !strcmp(fname, mirror_list->m_file)) {
4442                                 fprintf(stderr,
4443                                         "%s: the file specified by -f cannot be same as the source file '%s'\n",
4444                                         progname, fname);
4445                                 goto usage_error;
4446                         }
4447                         result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
4448                                               mirror_flags,
4449                                               has_m_file ? mirror_list->m_file :
4450                                               NULL);
4451                 } else if (layout) {
4452                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
4453                                                       mode, layout);
4454                         if (result >= 0) {
4455                                 close(result);
4456                                 result = 0;
4457                         }
4458                 } else if (foreign_mode) {
4459                         result = llapi_file_create_foreign(fname, mode, type,
4460                                                            flags, xattr);
4461                         if (result >= 0) {
4462                                 close(result);
4463                                 result = 0;
4464                         }
4465                 } else {
4466                         result = llapi_file_open_param(fname,
4467                                                        O_CREAT | O_WRONLY,
4468                                                        mode, param);
4469                         if (result >= 0) {
4470                                 close(result);
4471                                 result = 0;
4472                         }
4473                 }
4474                 if (result) {
4475                         /* Save the first error encountered. */
4476                         if (result2 == 0)
4477                                 result2 = result;
4478                         continue;
4479                 }
4480         }
4481
4482         if (mode_opt)
4483                 umask(previous_umask);
4484
4485         free(param);
4486         free(migrate_mdt_param.fp_lmv_md);
4487         llapi_layout_free(layout);
4488         lfs_mirror_list_free(mirror_list);
4489         return result2;
4490 usage_error:
4491         result = CMD_HELP;
4492 error:
4493         llapi_layout_free(layout);
4494         lfs_mirror_list_free(mirror_list);
4495         return result;
4496 }
4497
4498 static int lfs_poollist(int argc, char **argv)
4499 {
4500         if (argc != 2)
4501                 return CMD_HELP;
4502
4503         return llapi_poollist(argv[1]);
4504 }
4505
4506 #define FP_DEFAULT_TIME_MARGIN (24 * 60 * 60)
4507 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
4508                        char *str)
4509 {
4510         long long t = 0;
4511         int sign = 0;
4512         char *endptr = "AD";
4513         char *timebuf;
4514
4515         if (str[0] == '+')
4516                 sign = 1;
4517         else if (str[0] == '-')
4518                 sign = -1;
4519
4520         if (sign)
4521                 str++;
4522
4523         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
4524                 long long val = strtoll(timebuf, &endptr, 0);
4525                 int unit = 1;
4526
4527                 switch (*endptr) {
4528                 case  'y':
4529                         unit *= 52; /* 52 weeks + 1 day below */
4530                 case  'w':      /* fallthrough */
4531                         unit *= 7;
4532                         if (param->fp_time_margin == FP_DEFAULT_TIME_MARGIN)
4533                                 param->fp_time_margin *= (1 + unit / 52);
4534                         unit += (*endptr == 'y'); /* +1 day for 365 days/year */
4535                 case '\0': /* days are default unit if none used */
4536                 case  'd':      /* fallthrough */
4537                         unit *= 24;
4538                 case  'h':      /* fallthrough */
4539                         unit *= 60;
4540                 case  'm':      /* fallthrough */
4541                         unit *= 60;
4542                 case  's':      /* fallthrough */
4543                         break;
4544                         /* don't need to multiply by 1 for seconds */
4545                 default:
4546                         fprintf(stderr,
4547                                 "%s find: bad time string '%s': %s\n",
4548                                 progname, timebuf, strerror(EINVAL));
4549                         return LONG_MAX;
4550                 }
4551
4552                 if (param->fp_time_margin == 0 ||
4553                     (*endptr && unit < param->fp_time_margin))
4554                         param->fp_time_margin = unit;
4555
4556                 t += val * unit;
4557         }
4558         if (*time < t) {
4559                 if (sign != 0)
4560                         str--;
4561                 fprintf(stderr, "%s find: bad time '%s': too large\n",
4562                         progname, str);
4563                 return LONG_MAX;
4564         }
4565
4566         *set = *time - t;
4567
4568         return sign;
4569 }
4570
4571 static int str2quotaid(__u32 *id, const char *arg)
4572 {
4573         unsigned long int projid_tmp = 0;
4574         char *endptr = NULL;
4575
4576         projid_tmp = strtoul(arg, &endptr, 10);
4577         if (*endptr != '\0')
4578                 return -EINVAL;
4579         /* UINT32_MAX is not allowed - see projid_valid()/INVALID_PROJID */
4580         if (projid_tmp >= UINT32_MAX)
4581                 return -ERANGE;
4582
4583         *id = projid_tmp;
4584         return 0;
4585 }
4586
4587 static int name2uid(unsigned int *id, const char *name)
4588 {
4589         struct passwd *passwd;
4590
4591         passwd = getpwnam(name);
4592         if (!passwd)
4593                 return -ENOENT;
4594         *id = passwd->pw_uid;
4595
4596         return 0;
4597 }
4598
4599 static int name2gid(unsigned int *id, const char *name)
4600 {
4601         struct group *group;
4602
4603         group = getgrnam(name);
4604         if (!group)
4605                 return -ENOENT;
4606         *id = group->gr_gid;
4607
4608         return 0;
4609 }
4610
4611 static inline int name2projid(unsigned int *id, const char *name)
4612 {
4613         return -ENOTSUP;
4614 }
4615
4616 static int uid2name(char **name, unsigned int id)
4617 {
4618         struct passwd *passwd;
4619
4620         passwd = getpwuid(id);
4621         if (!passwd)
4622                 return -ENOENT;
4623         *name = passwd->pw_name;
4624
4625         return 0;
4626 }
4627
4628 static inline int gid2name(char **name, unsigned int id)
4629 {
4630         struct group *group;
4631
4632         group = getgrgid(id);
4633         if (!group)
4634                 return -ENOENT;
4635         *name = group->gr_name;
4636
4637         return 0;
4638 }
4639
4640 static int name2layout(__u32 *layout, char *name)
4641 {
4642         char *ptr, *layout_name;
4643
4644         *layout = 0;
4645         for (ptr = name; ; ptr = NULL) {
4646                 layout_name = strtok(ptr, ",");
4647                 if (!layout_name)
4648                         break;
4649                 if (strcmp(layout_name, "released") == 0)
4650                         *layout |= LOV_PATTERN_F_RELEASED;
4651                 else if (strcmp(layout_name, "raid0") == 0)
4652                         *layout |= LOV_PATTERN_RAID0;
4653                 else if (strcmp(layout_name, "mdt") == 0)
4654                         *layout |= LOV_PATTERN_MDT;
4655                 else if (strcmp(layout_name, "overstriping") == 0)
4656                         *layout |= LOV_PATTERN_OVERSTRIPING;
4657                 else
4658                         return -1;
4659         }
4660         return 0;
4661 }
4662
4663 static int parse_symbolic(const char *input, mode_t *outmode, const char **end)
4664 {
4665         int loop;
4666         int user, group, other;
4667         int who, all;
4668         char c, op;
4669         mode_t perm;
4670         mode_t usermask;
4671         mode_t previous_flags;
4672
4673         user = group = other = 0;
4674         all = 0;
4675         loop = 1;
4676         perm = 0;
4677         previous_flags = 0;
4678         *end = input;
4679         usermask = 0;
4680
4681         while (loop) {
4682                 switch (*input) {
4683                 case 'u':
4684                         user = 1;
4685                         break;
4686                 case 'g':
4687                         group = 1;
4688                         break;
4689                 case 'o':
4690                         other = 1;
4691                         break;
4692                 case 'a':
4693                         user = group = other = 1;
4694                         all = 1;
4695                         break;
4696                 default:
4697                         loop = 0;
4698                 }
4699
4700                 if (loop)
4701                         input++;
4702         }
4703
4704         who = user || group || other;
4705         if (!who) {
4706                 /* get the umask */
4707                 usermask = umask(0022);
4708                 umask(usermask);
4709                 usermask &= 07777;
4710         }
4711
4712         if (*input == '-' || *input == '+' || *input == '=')
4713                 op = *input++;
4714         else
4715                 /* operation is required */
4716                 return -1;
4717
4718         /* get the flags in *outmode */
4719         switch (*input) {
4720         case 'u':
4721                 previous_flags = (*outmode & 0700);
4722                 perm |= user  ? previous_flags : 0;
4723                 perm |= group ? (previous_flags >> 3) : 0;
4724                 perm |= other ? (previous_flags >> 6) : 0;
4725                 input++;
4726                 goto write_perm;
4727         case 'g':
4728                 previous_flags = (*outmode & 0070);
4729                 perm |= user  ? (previous_flags << 3) : 0;
4730                 perm |= group ? previous_flags : 0;
4731                 perm |= other ? (previous_flags >> 3) : 0;
4732                 input++;
4733                 goto write_perm;
4734         case 'o':
4735                 previous_flags = (*outmode & 0007);
4736                 perm |= user  ? (previous_flags << 6) : 0;
4737                 perm |= group ? (previous_flags << 3) : 0;
4738                 perm |= other ? previous_flags : 0;
4739                 input++;
4740                 goto write_perm;
4741         default:
4742                 break;
4743         }
4744
4745         /* this part is optional,
4746          * if empty perm = 0 and *outmode is not modified
4747          */
4748         loop = 1;
4749         while (loop) {
4750                 c = *input;
4751                 switch (c) {
4752                 case 'r':
4753                         perm |= user  ? 0400 : 0;
4754                         perm |= group ? 0040 : 0;
4755                         perm |= other ? 0004 : 0;
4756                         /* set read permission for uog except for umask's
4757                          * permissions
4758                          */
4759                         perm |= who   ? 0 : (0444 & ~usermask);
4760                         break;
4761                 case 'w':
4762                         perm |= user  ? 0200 : 0;
4763                         perm |= group ? 0020 : 0;
4764                         perm |= other ? 0002 : 0;
4765                         /* set write permission for uog except for umask'
4766                          * permissions
4767                          */
4768                         perm |= who   ? 0 : (0222 & ~usermask);
4769                         break;
4770                 case 'x':
4771                         perm |= user  ? 0100 : 0;
4772                         perm |= group ? 0010 : 0;
4773                         perm |= other ? 0001 : 0;
4774                         /* set execute permission for uog except for umask'
4775                          * permissions
4776                          */
4777                         perm |= who   ? 0 : (0111 & ~usermask);
4778                         break;
4779                 case 'X':
4780                         /*
4781                          * Adds execute permission to 'u', 'g' and/or 'g' if
4782                          * specified and either 'u', 'g' or 'o' already has
4783                          * execute permissions.
4784                          */
4785                         if ((*outmode & 0111) != 0) {
4786                                 perm |= user  ? 0100 : 0;
4787                                 perm |= group ? 0010 : 0;
4788                                 perm |= other ? 0001 : 0;
4789                                 perm |= !who  ? 0111 : 0;
4790                         }
4791                         break;
4792                 case 's':
4793                         /* s is ignored if o is given, but it's not an error */
4794                         if (other && !group && !user)
4795                                 break;
4796                         perm |= user  ? S_ISUID : 0;
4797                         perm |= group ? S_ISGID : 0;
4798                         break;
4799                 case 't':
4800                         /* 't' should be used when 'a' is given
4801                          * or who is empty
4802                          */
4803                         perm |= (!who || all) ? S_ISVTX : 0;
4804                         /* using ugo with t is not an error */
4805                         break;
4806                 default:
4807                         loop = 0;
4808                         break;
4809                 }
4810                 if (loop)
4811                         input++;
4812         }
4813
4814 write_perm:
4815         /* uog flags should be only one character long */
4816         if (previous_flags && (*input != '\0' && *input != ','))
4817                 return -1;
4818
4819         switch (op) {
4820         case '-':
4821                 /* remove the flags from outmode */
4822                 *outmode &= ~perm;
4823                 break;
4824         case '+':
4825                 /* add the flags to outmode */
4826                 *outmode |= perm;
4827                 break;
4828         case '=':
4829                 /* set the flags of outmode to perm */
4830                 if (perm != 0)
4831                         *outmode = perm;
4832                 break;
4833         }
4834
4835         *end = input;
4836         return 0;
4837 }
4838
4839 static int str2mode_t(const char *input, mode_t *outmode)
4840 {
4841         int ret;
4842         const char *iter;
4843
4844         ret = 0;
4845
4846         if (*input >= '0' && *input <= '7') {
4847                 /* parse octal representation */
4848                 char *end;
4849
4850                 iter = input;
4851
4852                 /* look for invalid digits in octal representation */
4853                 while (isdigit(*iter))
4854                         if (*iter++ > '7')
4855                                 return -1;
4856
4857                 errno = 0;
4858                 *outmode = strtoul(input, &end, 8);
4859
4860                 if (errno != 0 || *outmode > 07777) {
4861                         *outmode = 0;
4862                         ret = -1;
4863                 }
4864
4865         } else if (*input == '8' || *input == '9') {
4866                 /* error: invalid octal number */
4867                 ret = -1;
4868         } else {
4869                 /* parse coma seperated list of symbolic representation */
4870                 int rc;
4871                 const char *end;
4872
4873                 *outmode = 0;
4874                 rc = 0;
4875                 end = NULL;
4876
4877                 do {
4878                         rc = parse_symbolic(input, outmode, &end);
4879                         if (rc)
4880                                 return -1;
4881
4882                         input = end+1;
4883                 } while (*end == ',');
4884
4885                 if (*end != '\0')
4886                         ret = -1;
4887         }
4888         return ret;
4889 }
4890
4891 static int lfs_find(int argc, char **argv)
4892 {
4893         int c, rc;
4894         int ret = 0;
4895         time_t t;
4896         struct find_param param = {
4897                 .fp_max_depth = -1,
4898                 .fp_quiet = 1,
4899                 .fp_time_margin = FP_DEFAULT_TIME_MARGIN,
4900         };
4901         struct option long_opts[] = {
4902         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
4903         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
4904         { .val = 'B',   .name = "btime",        .has_arg = required_argument },
4905         { .val = 'B',   .name = "Btime",        .has_arg = required_argument },
4906         { .val = LFS_COMP_COUNT_OPT,
4907                         .name = "comp-count",   .has_arg = required_argument },
4908         { .val = LFS_COMP_COUNT_OPT,
4909                         .name = "component-count",
4910                                                 .has_arg = required_argument },
4911         { .val = LFS_COMP_FLAGS_OPT,
4912                         .name = "comp-flags",   .has_arg = required_argument },
4913         { .val = LFS_COMP_FLAGS_OPT,
4914                         .name = "component-flags",
4915                                                 .has_arg = required_argument },
4916         { .val = LFS_COMP_START_OPT,
4917                         .name = "comp-start",   .has_arg = required_argument },
4918         { .val = LFS_COMP_START_OPT,
4919                         .name = "component-start",
4920                                                 .has_arg = required_argument },
4921         { .val = LFS_MIRROR_STATE_OPT,
4922                         .name = "mirror-state", .has_arg = required_argument },
4923         { .val = LFS_NEWERXY_OPT,
4924                         .name = "newer",        .has_arg = required_argument},
4925         { .val = LFS_NEWERXY_OPT,
4926                         .name = "neweraa",      .has_arg = required_argument},
4927         { .val = LFS_NEWERXY_OPT,
4928                         .name = "neweram",      .has_arg = required_argument},
4929         { .val = LFS_NEWERXY_OPT,
4930                         .name = "newerac",      .has_arg = required_argument},
4931         { .val = LFS_NEWERXY_OPT,
4932                         .name = "newerab",      .has_arg = required_argument},
4933         { .val = LFS_NEWERXY_OPT,
4934                         .name = "newerma",      .has_arg = required_argument},
4935         { .val = LFS_NEWERXY_OPT,
4936                         .name = "newermm",      .has_arg = required_argument},
4937         { .val = LFS_NEWERXY_OPT,
4938                         .name = "newermc",      .has_arg = required_argument},
4939         { .val = LFS_NEWERXY_OPT,
4940                         .name = "newermb",      .has_arg = required_argument},
4941         { .val = LFS_NEWERXY_OPT,
4942                         .name = "newerca",      .has_arg = required_argument},
4943         { .val = LFS_NEWERXY_OPT,
4944                         .name = "newercm",      .has_arg = required_argument},
4945         { .val = LFS_NEWERXY_OPT,
4946                         .name = "newercc",      .has_arg = required_argument},
4947         { .val = LFS_NEWERXY_OPT,
4948                         .name = "newercb",      .has_arg = required_argument},
4949         { .val = LFS_NEWERXY_OPT,
4950                         .name = "newerba",      .has_arg = required_argument},
4951         { .val = LFS_NEWERXY_OPT,
4952                         .name = "newerbm",      .has_arg = required_argument},
4953         { .val = LFS_NEWERXY_OPT,
4954                         .name = "newerbc",      .has_arg = required_argument},
4955         { .val = LFS_NEWERXY_OPT,
4956                         .name = "newerbb",      .has_arg = required_argument},
4957         { .val = LFS_NEWERXY_OPT,
4958                         .name = "newerBa",      .has_arg = required_argument},
4959         { .val = LFS_NEWERXY_OPT,
4960                         .name = "newerBm",      .has_arg = required_argument},
4961         { .val = LFS_NEWERXY_OPT,
4962                         .name = "newerBc",      .has_arg = required_argument},
4963         { .val = LFS_NEWERXY_OPT,
4964                         .name = "newerBB",      .has_arg = required_argument},
4965         { .val = LFS_NEWERXY_OPT,
4966                         .name = "newerat",      .has_arg = required_argument},
4967         { .val = LFS_NEWERXY_OPT,
4968                         .name = "newermt",      .has_arg = required_argument},
4969         { .val = LFS_NEWERXY_OPT,
4970                         .name = "newerct",      .has_arg = required_argument},
4971         { .val = LFS_NEWERXY_OPT,
4972                         .name = "newerbt",      .has_arg = required_argument},
4973         { .val = LFS_NEWERXY_OPT,
4974                         .name = "newerBt",      .has_arg = required_argument},
4975         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
4976         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
4977         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
4978 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
4979         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
4980         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
4981         { .val = 'E',   .name = "component-end",
4982                                                 .has_arg = required_argument },
4983 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
4984         { .val = LFS_LAYOUT_FOREIGN_OPT,
4985                         .name = "foreign",      .has_arg = optional_argument},
4986         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
4987         { .val = 'G',   .name = "group",        .has_arg = required_argument },
4988         { .val = 'h',   .name = "help",         .has_arg = no_argument },
4989         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4990         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
4991         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
4992 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
4993         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
4994         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
4995         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
4996         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4997         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
4998         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
4999         { .val = 'n',   .name = "name",         .has_arg = required_argument },
5000         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
5001 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
5002         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5003         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
5004         /* no short option for pool yet, can be 'p' after 2.18 */
5005         { .val = LFS_POOL_OPT,
5006                         .name = "pool",         .has_arg = required_argument },
5007         { .val = '0',   .name = "print0",       .has_arg = no_argument },
5008         { .val = 'P',   .name = "print",        .has_arg = no_argument },
5009         { .val = LFS_PROJID_OPT,
5010                         .name = "projid",       .has_arg = required_argument },
5011 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
5012 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
5013 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
5014         { .val = 's',   .name = "size",         .has_arg = required_argument },
5015         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
5016         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
5017         { .val = 't',   .name = "type",         .has_arg = required_argument },
5018         { .val = LFS_FIND_PERM,
5019                         .name = "perm",         .has_arg = required_argument },
5020         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
5021         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
5022         { .val = 'U',   .name = "user",         .has_arg = required_argument },
5023         { .val = 'z',   .name = "extension-size",
5024                                                 .has_arg = required_argument },
5025         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument },
5026 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
5027 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
5028         { .name = NULL } };
5029         int optidx = 0;
5030         int pathstart = -1;
5031         int pathend = -1;
5032         int pathbad = -1;
5033         int neg_opt = 0;
5034         time_t *xtime;
5035         int *xsign;
5036         int isoption;
5037         char *endptr;
5038
5039         time(&t);
5040
5041         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
5042         while ((c = getopt_long_only(argc, argv,
5043                 "-0A:b:B:c:C:D:E:g:G:hH:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:vz:",
5044                 long_opts, &optidx)) >= 0) {
5045                 xtime = NULL;
5046                 xsign = NULL;
5047                 if (neg_opt)
5048                         --neg_opt;
5049                 /* '!' is part of option */
5050                 /*
5051                  * when getopt_long_only() finds a string which is not
5052                  * an option nor a known option argument it returns 1
5053                  * in that case if we already have found pathstart and pathend
5054                  * (i.e. we have the list of pathnames),
5055                  * the only supported value is "!"
5056                  */
5057                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5058                 if (!isoption && pathend != -1) {
5059                         fprintf(stderr,
5060                                 "err: %s: filename|dirname must either precede options or follow options\n",
5061                                 argv[0]);
5062                         ret = CMD_HELP;
5063                         goto err;
5064                 }
5065                 if (!isoption && pathstart == -1)
5066                         pathstart = optind - 1;
5067                 if (isoption && pathstart != -1 && pathend == -1)
5068                         pathend = optind - 2;
5069                 switch (c) {
5070                 case 0:
5071                         /* Long options. */
5072                         break;
5073                 case 1:
5074                         /*
5075                          * unknown; opt is "!" or path component,
5076                          * checking done above.
5077                          */
5078                         if (strcmp(optarg, "!") == 0)
5079                                 neg_opt = 2;
5080                         break;
5081                 case 'A':
5082                         xtime = &param.fp_atime;
5083                         xsign = &param.fp_asign;
5084                         param.fp_exclude_atime = !!neg_opt;
5085                         /* no break, this falls through to 'B' for btime */
5086                 case 'B':
5087                         if (c == 'B') {
5088                                 xtime = &param.fp_btime;
5089                                 xsign = &param.fp_bsign;
5090                                 param.fp_exclude_btime = !!neg_opt;
5091                         }
5092                         /* no break, this falls through to 'C' for ctime */
5093                 case 'C':
5094                         if (c == 'C') {
5095                                 xtime = &param.fp_ctime;
5096                                 xsign = &param.fp_csign;
5097                                 param.fp_exclude_ctime = !!neg_opt;
5098                         }
5099                         /* no break, this falls through to 'M' for mtime */
5100                 case 'M':
5101                         if (c == 'M') {
5102                                 xtime = &param.fp_mtime;
5103                                 xsign = &param.fp_msign;
5104                                 param.fp_exclude_mtime = !!neg_opt;
5105                         }
5106                         rc = set_time(&param, &t, xtime, optarg);
5107                         if (rc == LONG_MAX) {
5108                                 ret = -1;
5109                                 goto err;
5110                         }
5111                         if (rc)
5112                                 *xsign = rc;
5113                         break;
5114                 case 'b':
5115                         if (optarg[0] == '+') {
5116                                 param.fp_blocks_sign = -1;
5117                                 optarg++;
5118                         } else if (optarg[0] == '-') {
5119                                 param.fp_blocks_sign =  1;
5120                                 optarg++;
5121                         }
5122
5123                         param.fp_blocks_units = 1024;
5124                         ret = llapi_parse_size(optarg, &param.fp_blocks,
5125                                                &param.fp_blocks_units, 0);
5126                         if (ret) {
5127                                 fprintf(stderr, "error: bad blocks '%s'\n",
5128                                         optarg);
5129                                 goto err;
5130                         }
5131                         param.fp_check_blocks = 1;
5132                         param.fp_exclude_blocks = !!neg_opt;
5133                         break;
5134                 case LFS_COMP_COUNT_OPT:
5135                         if (optarg[0] == '+') {
5136                                 param.fp_comp_count_sign = -1;
5137                                 optarg++;
5138                         } else if (optarg[0] == '-') {
5139                                 param.fp_comp_count_sign =  1;
5140                                 optarg++;
5141                         }
5142
5143                         errno = 0;
5144                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
5145                         if (errno != 0 || *endptr != '\0' ||
5146                             param.fp_comp_count > UINT32_MAX) {
5147                                 fprintf(stderr,
5148                                         "error: bad component count '%s'\n",
5149                                         optarg);
5150                                 goto err;
5151                         }
5152                         param.fp_check_comp_count = 1;
5153                         param.fp_exclude_comp_count = !!neg_opt;
5154                         break;
5155                 case LFS_COMP_FLAGS_OPT:
5156                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
5157                                             &param.fp_comp_neg_flags);
5158                         if (rc) {
5159                                 fprintf(stderr,
5160                                         "error: bad component flags '%s'\n",
5161                                         optarg);
5162                                 goto err;
5163                         }
5164                         param.fp_check_comp_flags = 1;
5165                         if (neg_opt) {
5166                                 __u32 flags = param.fp_comp_neg_flags;
5167
5168                                 param.fp_comp_neg_flags = param.fp_comp_flags;
5169                                 param.fp_comp_flags = flags;
5170                         }
5171                         break;
5172                 case LFS_COMP_START_OPT:
5173                         if (optarg[0] == '+') {
5174                                 param.fp_comp_start_sign = -1;
5175                                 optarg++;
5176                         } else if (optarg[0] == '-') {
5177                                 param.fp_comp_start_sign =  1;
5178                                 optarg++;
5179                         }
5180
5181                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
5182                                               &param.fp_comp_start_units, 0);
5183                         if (rc) {
5184                                 fprintf(stderr,
5185                                         "error: bad component start '%s'\n",
5186                                         optarg);
5187                                 goto err;
5188                         }
5189                         param.fp_check_comp_start = 1;
5190                         param.fp_exclude_comp_start = !!neg_opt;
5191                         break;
5192                 case LFS_MIRROR_STATE_OPT:
5193                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
5194                                               &param.fp_mirror_neg_state);
5195                         if (rc) {
5196                                 fprintf(stderr,
5197                                         "error: bad mirrored file state '%s'\n",
5198                                         optarg);
5199                                 goto err;
5200                         }
5201                         param.fp_check_mirror_state = 1;
5202                         if (neg_opt) {
5203                                 __u16 state = param.fp_mirror_neg_state;
5204
5205                                 param.fp_mirror_neg_state =
5206                                         param.fp_mirror_state;
5207                                 param.fp_mirror_state = state;
5208                         }
5209                         break;
5210                 case 'c':
5211                         if (optarg[0] == '+') {
5212                                 param.fp_stripe_count_sign = -1;
5213                                 optarg++;
5214                         } else if (optarg[0] == '-') {
5215                                 param.fp_stripe_count_sign =  1;
5216                                 optarg++;
5217                         }
5218
5219                         errno = 0;
5220                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
5221                         if (errno != 0 || *endptr != '\0' ||
5222                             param.fp_stripe_count > LOV_MAX_STRIPE_COUNT) {
5223                                 fprintf(stderr,
5224                                         "error: bad stripe_count '%s'\n",
5225                                         optarg);
5226                                 ret = -1;
5227                                 goto err;
5228                         }
5229                         param.fp_check_stripe_count = 1;
5230                         param.fp_exclude_stripe_count = !!neg_opt;
5231                         break;
5232                 case 'D':
5233                         errno = 0;
5234                         param.fp_max_depth = strtol(optarg, 0, 0);
5235                         if (errno != 0 || param.fp_max_depth < 0) {
5236                                 fprintf(stderr,
5237                                         "error: bad maxdepth '%s'\n",
5238                                         optarg);
5239                                 ret = -1;
5240                                 goto err;
5241                         }
5242                         break;
5243                 case 'E':
5244                         if (optarg[0] == '+') {
5245                                 param.fp_comp_end_sign = -1;
5246                                 optarg++;
5247                         } else if (optarg[0] == '-') {
5248                                 param.fp_comp_end_sign =  1;
5249                                 optarg++;
5250                         }
5251
5252                         if (arg_is_eof(optarg)) {
5253                                 param.fp_comp_end = LUSTRE_EOF;
5254                                 param.fp_comp_end_units = 1;
5255                                 rc = 0;
5256                         } else {
5257                                 rc = llapi_parse_size(optarg,
5258                                                 &param.fp_comp_end,
5259                                                 &param.fp_comp_end_units, 0);
5260                                 /* assume units of KB if too small */
5261                                 if (param.fp_comp_end < 4096)
5262                                         param.fp_comp_end *= 1024;
5263                         }
5264                         if (rc) {
5265                                 fprintf(stderr,
5266                                         "error: bad component end '%s'\n",
5267                                         optarg);
5268                                 goto err;
5269                         }
5270                         param.fp_check_comp_end = 1;
5271                         param.fp_exclude_comp_end = !!neg_opt;
5272                         break;
5273                 case LFS_LAYOUT_FOREIGN_OPT: {
5274                         /* all types by default */
5275                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
5276
5277                         if (optarg) {
5278                                 /* check pure numeric */
5279                                 type = strtoul(optarg, &endptr, 0);
5280                                 if (*endptr) {
5281                                         /* check name */
5282                                         type = check_foreign_type_name(optarg);
5283                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
5284                                                 fprintf(stderr,
5285                                                         "%s %s: unknown foreign type '%s'\n",
5286                                                         progname, argv[0],
5287                                                         optarg);
5288                                                 return CMD_HELP;
5289                                         }
5290                                 } else if (type >= UINT32_MAX) {
5291                                         fprintf(stderr,
5292                                                 "%s %s: invalid foreign type '%s'\n",
5293                                                 progname, argv[0], optarg);
5294                                         return CMD_HELP;
5295                                 }
5296                         }
5297                         param.fp_foreign_type = type;
5298                         param.fp_check_foreign = 1;
5299                         param.fp_exclude_foreign = !!neg_opt;
5300                         break;
5301                 }
5302                 case LFS_NEWERXY_OPT: {
5303                         char x = 'm';
5304                         char y = 'm';
5305                         int xidx;
5306                         int negidx;
5307                         time_t *newery;
5308                         time_t ref = time(NULL);
5309
5310                         /* no need to check bad options, they won't get here */
5311                         if (strlen(long_opts[optidx].name) == 7) {
5312                                 x = long_opts[optidx].name[5];
5313                                 y = long_opts[optidx].name[6];
5314                         }
5315
5316                         if (y == 't') {
5317                                 static const char *const fmts[] = {
5318                                         "%Y-%m-%d %H:%M:%S",
5319                                         "%Y-%m-%d %H:%M",
5320                                         "%Y-%m-%d",
5321                                         "%H:%M:%S", /* sometime today */
5322                                         "%H:%M",
5323                                         "@%s",
5324                                         "%s",
5325                                         NULL };
5326                                 struct tm tm;
5327                                 bool found = false;
5328                                 int i;
5329
5330                                 for (i = 0; fmts[i] != NULL; i++) {
5331                                         char *ptr;
5332
5333                                         /* Init for times relative to today */
5334                                         if (strncmp(fmts[i], "%H", 2) == 0)
5335                                                 localtime_r(&ref, &tm);
5336                                         else
5337                                                 memset(&tm, 0, sizeof(tm));
5338                                         ptr = strptime(optarg, fmts[i], &tm);
5339                                         /* Skip spaces */
5340                                         while (ptr && isspace(*ptr))
5341                                                 ptr++;
5342                                         if (ptr == optarg + strlen(optarg)) {
5343                                                 found = true;
5344                                                 break;
5345                                         }
5346                                 }
5347
5348                                 if (!found) {
5349                                         fprintf(stderr,
5350                                                 "%s: invalid time '%s'\n",
5351                                                 progname, optarg);
5352                                         fprintf(stderr,
5353                                                 "supported formats are:\n  ");
5354                                         for (i = 0; fmts[i] != NULL; i++)
5355                                                 fprintf(stderr, "'%s', ",
5356                                                         fmts[i]);
5357                                         fprintf(stderr, "\n");
5358                                         ret = -EINVAL;
5359                                         goto err;
5360                                 }
5361
5362                                 ref = mktime(&tm);
5363                         } else if (y == 'b' || y == 'B') {
5364                                 lstatx_t stx;
5365
5366                                 rc = llapi_get_lum_file(optarg, NULL, &stx,
5367                                                         NULL, 0);
5368                                 if (rc || !(stx.stx_mask & STATX_BTIME)) {
5369                                         if (!(stx.stx_mask & STATX_BTIME))
5370                                                 ret = -EOPNOTSUPP;
5371                                         else
5372                                                 ret = -errno;
5373                                         fprintf(stderr,
5374                                                 "%s: get btime failed '%s': %s\n",
5375                                                 progname, optarg,
5376                                                 strerror(-ret));
5377                                         goto err;
5378                                 }
5379
5380                                 ref = stx.stx_btime.tv_sec;
5381                         } else {
5382                                 struct stat statbuf;
5383
5384                                 if (stat(optarg, &statbuf) < 0) {
5385                                         fprintf(stderr,
5386                                                 "%s: cannot stat file '%s': %s\n",
5387                                                 progname, optarg,
5388                                                 strerror(errno));
5389                                         ret = -errno;
5390                                         goto err;
5391                                 }
5392
5393                                 switch (y) {
5394                                 case 'a':
5395                                         ref = statbuf.st_atime;
5396                                         break;
5397                                 case 'm':
5398                                         ref = statbuf.st_mtime;
5399                                         break;
5400                                 case 'c':
5401                                         ref = statbuf.st_ctime;
5402                                         break;
5403                                 default:
5404                                         fprintf(stderr,
5405                                                 "%s: invalid Y argument: '%c'\n",
5406                                                 progname, x);
5407                                         ret = -EINVAL;
5408                                         goto err;
5409                                 }
5410                         }
5411
5412                         switch (x) {
5413                         case 'a':
5414                                 xidx = NEWERXY_ATIME;
5415                                 break;
5416                         case 'm':
5417                                 xidx = NEWERXY_MTIME;
5418                                 break;
5419                         case 'c':
5420                                 xidx = NEWERXY_CTIME;
5421                                 break;
5422                         case 'b':
5423                         case 'B':
5424                                 xidx = NEWERXY_BTIME;
5425                                 break;
5426                         default:
5427                                 fprintf(stderr,
5428                                         "%s: invalid X argument: '%c'\n",
5429                                         progname, x);
5430                                 ret = -EINVAL;
5431                                 goto err;
5432                         }
5433
5434                         negidx = !!neg_opt;
5435                         newery = &param.fp_newery[xidx][negidx];
5436
5437                         if (*newery == 0) {
5438                                 *newery = ref;
5439                         } else {
5440                                 if (negidx)
5441                                         *newery = *newery > ref ? ref : *newery;
5442                                 else
5443                                         *newery = *newery > ref ? *newery : ref;
5444                         }
5445                         param.fp_newerxy = 1;
5446                         break;
5447                 }
5448                 case 'g':
5449                 case 'G':
5450                         rc = name2gid(&param.fp_gid, optarg);
5451                         if (rc) {
5452                                 if (str2quotaid(&param.fp_gid, optarg)) {
5453                                         fprintf(stderr,
5454                                                 "Group/GID: %s cannot be found.\n",
5455                                                 optarg);
5456                                         ret = -1;
5457                                         goto err;
5458                                 }
5459                         }
5460                         param.fp_exclude_gid = !!neg_opt;
5461                         param.fp_check_gid = 1;
5462                         break;
5463                 case 'H':
5464                         rc = mdthash_input(optarg, &param.fp_hash_inflags,
5465                                            &param.fp_hash_exflags,
5466                                            &param.fp_hash_type);
5467                         if (rc) {
5468                                 ret = -1;
5469                                 goto err;
5470                         }
5471                         if (param.fp_hash_inflags || param.fp_hash_exflags)
5472                                 param.fp_check_hash_flag = 1;
5473                         param.fp_exclude_hash_type = !!neg_opt;
5474                         break;
5475                 case 'l':
5476                         param.fp_lazy = 1;
5477                         break;
5478                 case 'L':
5479                         ret = name2layout(&param.fp_layout, optarg);
5480                         if (ret)
5481                                 goto err;
5482                         param.fp_exclude_layout = !!neg_opt;
5483                         param.fp_check_layout = 1;
5484                         break;
5485                 case 'u':
5486                 case 'U':
5487                         rc = name2uid(&param.fp_uid, optarg);
5488                         if (rc) {
5489                                 if (str2quotaid(&param.fp_uid, optarg)) {
5490                                         fprintf(stderr,
5491                                                 "User/UID: %s cannot be found.\n",
5492                                                 optarg);
5493                                         ret = -1;
5494                                         goto err;
5495                                 }
5496                         }
5497                         param.fp_exclude_uid = !!neg_opt;
5498                         param.fp_check_uid = 1;
5499                         break;
5500                 case 'n':
5501                         param.fp_pattern = (char *)optarg;
5502                         param.fp_exclude_pattern = !!neg_opt;
5503                         break;
5504                 case 'N':
5505                         if (optarg[0] == '+') {
5506                                 param.fp_mirror_count_sign = -1;
5507                                 optarg++;
5508                         } else if (optarg[0] == '-') {
5509                                 param.fp_mirror_count_sign =  1;
5510                                 optarg++;
5511                         }
5512
5513                         errno = 0;
5514                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
5515                         if (errno != 0 || *endptr != '\0' ||
5516                             param.fp_mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
5517                                 fprintf(stderr,
5518                                         "error: bad mirror count '%s'\n",
5519                                         optarg);
5520                                 goto err;
5521                         }
5522                         param.fp_check_mirror_count = 1;
5523                         param.fp_exclude_mirror_count = !!neg_opt;
5524                         break;
5525                 case 'm':
5526                 case 'i':
5527                 case 'O': {
5528                         char *buf, *token, *next, *p;
5529                         int len = 1;
5530                         void *tmp;
5531
5532                         buf = strdup(optarg);
5533                         if (!buf) {
5534                                 ret = -ENOMEM;
5535                                 goto err;
5536                         }
5537
5538                         param.fp_exclude_obd = !!neg_opt;
5539
5540                         token = buf;
5541                         while (token && *token) {
5542                                 token = strchr(token, ',');
5543                                 if (token) {
5544                                         len++;
5545                                         token++;
5546                                 }
5547                         }
5548                         if (c == 'm') {
5549                                 param.fp_exclude_mdt = !!neg_opt;
5550                                 param.fp_num_alloc_mdts += len;
5551                                 tmp = realloc(param.fp_mdt_uuid,
5552                                               param.fp_num_alloc_mdts *
5553                                               sizeof(*param.fp_mdt_uuid));
5554                                 if (!tmp) {
5555                                         ret = -ENOMEM;
5556                                         goto err_free;
5557                                 }
5558
5559                                 param.fp_mdt_uuid = tmp;
5560                         } else {
5561                                 param.fp_exclude_obd = !!neg_opt;
5562                                 param.fp_num_alloc_obds += len;
5563                                 tmp = realloc(param.fp_obd_uuid,
5564                                               param.fp_num_alloc_obds *
5565                                               sizeof(*param.fp_obd_uuid));
5566                                 if (!tmp) {
5567                                         ret = -ENOMEM;
5568                                         goto err_free;
5569                                 }
5570
5571                                 param.fp_obd_uuid = tmp;
5572                         }
5573                         for (token = buf; token && *token; token = next) {
5574                                 struct obd_uuid *puuid;
5575
5576                                 if (c == 'm') {
5577                                         puuid =
5578                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
5579                                 } else {
5580                                         puuid =
5581                                         &param.fp_obd_uuid[param.fp_num_obds++];
5582                                 }
5583                                 p = strchr(token, ',');
5584                                 next = 0;
5585                                 if (p) {
5586                                         *p = 0;
5587                                         next = p+1;
5588                                 }
5589
5590                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
5591                                         ret = -E2BIG;
5592                                         goto err_free;
5593                                 }
5594
5595                                 strncpy(puuid->uuid, token,
5596                                         sizeof(puuid->uuid));
5597                         }
5598 err_free:
5599                         if (buf)
5600                                 free(buf);
5601                         break;
5602                 }
5603 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
5604                 case 'p':
5605 #endif
5606                 case LFS_POOL_OPT:
5607                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
5608                                 fprintf(stderr,
5609                                         "Pool name %s is too long (max %d)\n",
5610                                         optarg, LOV_MAXPOOLNAME);
5611                                 ret = -1;
5612                                 goto err;
5613                         }
5614                         /*
5615                          * We do check for empty pool because empty pool
5616                          * is used to find V1 LOV attributes
5617                          */
5618                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
5619                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
5620                         param.fp_exclude_pool = !!neg_opt;
5621                         param.fp_check_pool = 1;
5622                         break;
5623 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
5624                 case 'p': /* want this for --pool, to match getstripe/find */
5625                         fprintf(stderr,
5626                                 "warning: -p deprecated, use --print0 or -0\n");
5627 #endif
5628                 case '0':
5629                         param.fp_zero_end = 1;
5630                         break;
5631                 case 'P': /* we always print, this option is a no-op */
5632                         break;
5633                 case LFS_PROJID_OPT:
5634                         rc = name2projid(&param.fp_projid, optarg);
5635                         if (rc) {
5636                                 if (str2quotaid(&param.fp_projid, optarg)) {
5637                                         fprintf(stderr,
5638                                                 "Invalid project ID: %s\n",
5639                                                 optarg);
5640                                         ret = -1;
5641                                         goto err;
5642                                 }
5643                         }
5644                         param.fp_exclude_projid = !!neg_opt;
5645                         param.fp_check_projid = 1;
5646                         break;
5647                 case 's':
5648                         if (optarg[0] == '+') {
5649                                 param.fp_size_sign = -1;
5650                                 optarg++;
5651                         } else if (optarg[0] == '-') {
5652                                 param.fp_size_sign =  1;
5653                                 optarg++;
5654                         }
5655
5656                         ret = llapi_parse_size(optarg, &param.fp_size,
5657                                                &param.fp_size_units, 0);
5658                         if (ret) {
5659                                 fprintf(stderr, "error: bad file size '%s'\n",
5660                                         optarg);
5661                                 goto err;
5662                         }
5663                         param.fp_check_size = 1;
5664                         param.fp_exclude_size = !!neg_opt;
5665                         break;
5666                 case 'S':
5667                         if (optarg[0] == '+') {
5668                                 param.fp_stripe_size_sign = -1;
5669                                 optarg++;
5670                         } else if (optarg[0] == '-') {
5671                                 param.fp_stripe_size_sign =  1;
5672                                 optarg++;
5673                         }
5674
5675                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
5676                                                &param.fp_stripe_size_units, 0);
5677                         /* assume units of KB if too small to be valid */
5678                         if (param.fp_stripe_size < 4096)
5679                                 param.fp_stripe_size *= 1024;
5680                         if (ret) {
5681                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
5682                                         optarg);
5683                                 goto err;
5684                         }
5685                         param.fp_check_stripe_size = 1;
5686                         param.fp_exclude_stripe_size = !!neg_opt;
5687                         break;
5688                 case 't':
5689                         param.fp_exclude_type = !!neg_opt;
5690                         switch (optarg[0]) {
5691                         case 'b':
5692                                 param.fp_type = S_IFBLK;
5693                                 break;
5694                         case 'c':
5695                                 param.fp_type = S_IFCHR;
5696                                 break;
5697                         case 'd':
5698                                 param.fp_type = S_IFDIR;
5699                                 break;
5700                         case 'f':
5701                                 param.fp_type = S_IFREG;
5702                                 break;
5703                         case 'l':
5704                                 param.fp_type = S_IFLNK;
5705                                 break;
5706                         case 'p':
5707                                 param.fp_type = S_IFIFO;
5708                                 break;
5709                         case 's':
5710                                 param.fp_type = S_IFSOCK;
5711                                 break;
5712                         default:
5713                                 fprintf(stderr, "%s: bad type '%s'\n",
5714                                         progname, optarg);
5715                                 ret = CMD_HELP;
5716                                 goto err;
5717                         }
5718                         break;
5719                 case LFS_FIND_PERM:
5720                         param.fp_exclude_perm = !!neg_opt;
5721                         param.fp_perm_sign = LFS_FIND_PERM_EXACT;
5722                         if (*optarg == '/') {
5723                                 param.fp_perm_sign = LFS_FIND_PERM_ANY;
5724                                 optarg++;
5725                         } else if (*optarg == '-') {
5726                                 param.fp_perm_sign = LFS_FIND_PERM_ALL;
5727                                 optarg++;
5728                         }
5729
5730                         if (str2mode_t(optarg, &param.fp_perm)) {
5731                                 fprintf(stderr, "error: invalid mode '%s'\n",
5732                                         optarg);
5733                                 ret = -1;
5734                                 goto err;
5735                         }
5736                         break;
5737                 case 'T':
5738                         if (optarg[0] == '+') {
5739                                 param.fp_mdt_count_sign = -1;
5740                                 optarg++;
5741                         } else if (optarg[0] == '-') {
5742                                 param.fp_mdt_count_sign =  1;
5743                                 optarg++;
5744                         }
5745
5746                         errno = 0;
5747                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
5748                         if (errno != 0 || *endptr != '\0' ||
5749                             param.fp_mdt_count >= UINT32_MAX) {
5750                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
5751                                         optarg);
5752                                 ret = -1;
5753                                 goto err;
5754                         }
5755                         param.fp_check_mdt_count = 1;
5756                         param.fp_exclude_mdt_count = !!neg_opt;
5757                         break;
5758                 case 'z':
5759                         if (optarg[0] == '+') {
5760                                 param.fp_ext_size_sign = -1;
5761                                 optarg++;
5762                         } else if (optarg[0] == '-') {
5763                                 param.fp_ext_size_sign =  1;
5764                                 optarg++;
5765                         }
5766
5767                         ret = llapi_parse_size(optarg, &param.fp_ext_size,
5768                                                &param.fp_ext_size_units, 0);
5769                         if (ret) {
5770                                 fprintf(stderr, "error: bad ext-size '%s'\n",
5771                                         optarg);
5772                                 goto err;
5773                         }
5774                         param.fp_ext_size /= SEL_UNIT_SIZE;
5775                         param.fp_ext_size_units /= SEL_UNIT_SIZE;
5776                         param.fp_check_ext_size = 1;
5777                         param.fp_exclude_ext_size = !!neg_opt;
5778                         break;
5779                 default:
5780                         fprintf(stderr, "%s: unrecognized option '%s'\n",
5781                                 progname, argv[optind - 1]);
5782                 case 'h':
5783                         ret = CMD_HELP;
5784                         goto err;
5785                 }
5786         }
5787
5788         if (pathstart == -1) {
5789                 fprintf(stderr, "error: %s: no filename|pathname\n",
5790                         argv[0]);
5791                 ret = CMD_HELP;
5792                 goto err;
5793         } else if (pathend == -1) {
5794                 /* no options */
5795                 pathend = argc;
5796         }
5797
5798         do {
5799                 rc = llapi_find(argv[pathstart], &param);
5800                 if (rc && !ret) {
5801                         ret = rc;
5802                         pathbad = pathstart;
5803                 }
5804         } while (++pathstart < pathend);
5805
5806         if (ret)
5807                 fprintf(stderr, "%s: failed for '%s': %s\n",
5808                         progname, argv[pathbad], strerror(-rc));
5809
5810 err:
5811         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
5812                 free(param.fp_obd_uuid);
5813
5814         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
5815                 free(param.fp_mdt_uuid);
5816
5817         return ret;
5818 }
5819
5820 static int lfs_getstripe_internal(int argc, char **argv,
5821                                   struct find_param *param)
5822 {
5823         struct option long_opts[] = {
5824 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
5825 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
5826 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
5827 /* find { .val = 'B',   .name = "Btime",        .has_arg = required_argument }*/
5828         { .val = LFS_COMP_COUNT_OPT,
5829                         .name = "comp-count",   .has_arg = no_argument },
5830         { .val = LFS_COMP_COUNT_OPT,
5831                 .name = "component-count",      .has_arg = no_argument },
5832         { .val = LFS_COMP_FLAGS_OPT,
5833                         .name = "comp-flags",   .has_arg = optional_argument },
5834         { .val = LFS_COMP_FLAGS_OPT,
5835                 .name = "component-flags",      .has_arg = optional_argument },
5836         { .val = LFS_COMP_START_OPT,
5837                         .name = "comp-start",   .has_arg = optional_argument },
5838         { .val = LFS_COMP_START_OPT,
5839                 .name = "component-start",      .has_arg = optional_argument },
5840         { .val = LFS_MIRROR_INDEX_OPT,
5841                 .name = "mirror-index",         .has_arg = required_argument },
5842         { .val = LFS_MIRROR_ID_OPT,
5843                 .name = "mirror-id",            .has_arg = required_argument },
5844         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
5845         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
5846 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
5847         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
5848         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5849         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
5850         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
5851         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
5852         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
5853 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
5854         { .val = 'h',   .name = "help",         .has_arg = no_argument },
5855 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
5856         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
5857         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
5858         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
5859         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
5860 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
5861         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
5862         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
5863         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5864         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
5865 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
5866 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
5867         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
5868         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5869         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
5870         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
5871 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
5872         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
5873         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5874         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
5875         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
5876         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
5877 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
5878 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
5879 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
5880 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
5881         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5882 /* dirstripe { .val = 'X',.name = "max-inherit",.has_arg = required_argument }*/
5883         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5884         { .val = 'z',   .name = "extension-size", .has_arg = no_argument },
5885         { .val = 'z',   .name = "ext-size",     .has_arg = no_argument },
5886         { .name = NULL } };
5887         int c, rc;
5888         int neg_opt = 0;
5889         int pathstart = -1, pathend = -1;
5890         int isoption;
5891         char *end, *tmp;
5892
5893         while ((c = getopt_long(argc, argv,
5894                         "-cdDE::FghiI::LmMNoO:pqrRsSvyz",
5895                         long_opts, NULL)) != -1) {
5896                 if (neg_opt)
5897                         --neg_opt;
5898
5899                 /* '!' is part of option */
5900                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5901                 if (!isoption && pathend != -1) {
5902                         fprintf(stderr,
5903                                 "error: %s: filename|dirname must either precede options or follow options\n",
5904                                 argv[0]);
5905                         return CMD_HELP;
5906                 }
5907                 if (!isoption && pathstart == -1)
5908                         pathstart = optind - 1;
5909                 if (isoption && pathstart != -1 && pathend == -1)
5910                         pathend = optind - 2;
5911
5912                 switch (c) {
5913                 case 1:
5914                         /* unknown: opt is "!" */
5915                         if (strcmp(optarg, "!") == 0)
5916                                 neg_opt = 2;
5917                         break;
5918                 case 'c':
5919                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5920                                 param->fp_verbose |= VERBOSE_COUNT;
5921                                 param->fp_max_depth = 0;
5922                         }
5923                         break;
5924                 case LFS_COMP_COUNT_OPT:
5925                         param->fp_verbose |= VERBOSE_COMP_COUNT;
5926                         param->fp_max_depth = 0;
5927                         break;
5928                 case LFS_COMP_FLAGS_OPT:
5929                         if (optarg) {
5930                                 rc = comp_str2flags(optarg,
5931                                                     &param->fp_comp_flags,
5932                                                     &param->fp_comp_neg_flags);
5933                                 if (rc != 0) {
5934                                         fprintf(stderr,
5935                                                 "error: %s bad component flags '%s'.\n",
5936                                                 argv[0], optarg);
5937                                         return CMD_HELP;
5938                                 }
5939                                 param->fp_check_comp_flags = 1;
5940                         } else {
5941                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
5942                                 param->fp_max_depth = 0;
5943                         }
5944                         break;
5945                 case LFS_COMP_START_OPT:
5946                         if (optarg) {
5947                                 tmp = optarg;
5948                                 if (tmp[0] == '+') {
5949                                         param->fp_comp_start_sign = -1;
5950                                         tmp++;
5951                                 } else if (tmp[0] == '-') {
5952                                         param->fp_comp_start_sign = 1;
5953                                         tmp++;
5954                                 }
5955                                 rc = llapi_parse_size(tmp,
5956                                                 &param->fp_comp_start,
5957                                                 &param->fp_comp_start_units, 0);
5958                                 if (rc != 0) {
5959                                         fprintf(stderr,
5960                                                 "error: %s bad component start '%s'.\n",
5961                                                 argv[0], tmp);
5962                                         return CMD_HELP;
5963                                 }
5964                                 param->fp_check_comp_start = 1;
5965                         } else {
5966                                 param->fp_verbose |= VERBOSE_COMP_START;
5967                                 param->fp_max_depth = 0;
5968                         }
5969                         break;
5970                 case LFS_MIRROR_INDEX_OPT: {
5971                         unsigned long int mirror_index;
5972
5973                         if (optarg[0] == '+') {
5974                                 param->fp_mirror_index_sign = -1;
5975                                 optarg++;
5976                         } else if (optarg[0] == '-') {
5977                                 param->fp_mirror_index_sign = 1;
5978                                 optarg++;
5979                         }
5980
5981                         errno = 0;
5982                         mirror_index = strtoul(optarg, &end, 0);
5983                         if (errno != 0 || *end != '\0' ||
5984                             mirror_index > UINT16_MAX || (mirror_index == 0 &&
5985                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
5986                                 fprintf(stderr,
5987                                         "%s %s: invalid mirror index '%s'\n",
5988                                         progname, argv[0], optarg);
5989                                 return CMD_HELP;
5990                         }
5991
5992                         param->fp_mirror_index = (__u16)mirror_index;
5993
5994                         if (param->fp_mirror_id != 0) {
5995                                 fprintf(stderr,
5996                                         "%s %s: can't specify both mirror index and mirror ID\n",
5997                                         progname, argv[0]);
5998                                 return CMD_HELP;
5999                         }
6000                         param->fp_check_mirror_index = 1;
6001                         param->fp_exclude_mirror_index = !!neg_opt;
6002                         break;
6003                 }
6004                 case LFS_MIRROR_ID_OPT: {
6005                         unsigned long int mirror_id;
6006
6007                         if (optarg[0] == '+') {
6008                                 param->fp_mirror_id_sign = -1;
6009                                 optarg++;
6010                         } else if (optarg[0] == '-') {
6011                                 param->fp_mirror_id_sign = 1;
6012                                 optarg++;
6013                         }
6014
6015                         errno = 0;
6016                         mirror_id = strtoul(optarg, &end, 0);
6017                         if (errno != 0 || *end != '\0' ||
6018                             mirror_id > UINT16_MAX || (mirror_id == 0 &&
6019                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
6020                                 fprintf(stderr,
6021                                         "%s %s: invalid mirror ID '%s'\n",
6022                                         progname, argv[0], optarg);
6023                                 return CMD_HELP;
6024                         }
6025
6026                         param->fp_mirror_id = (__u16)mirror_id;
6027
6028                         if (param->fp_mirror_index != 0) {
6029                                 fprintf(stderr,
6030                                         "%s %s: can't specify both mirror index and mirror ID\n",
6031                                         progname, argv[0]);
6032                                 return CMD_HELP;
6033                         }
6034                         param->fp_check_mirror_id = 1;
6035                         param->fp_exclude_mirror_id = !!neg_opt;
6036                         break;
6037                 }
6038                 case 'd':
6039                         param->fp_max_depth = 0;
6040                         break;
6041                 case 'D':
6042                         param->fp_get_default_lmv = 1;
6043                         break;
6044                 case 'E':
6045                         if (optarg) {
6046                                 tmp = optarg;
6047                                 if (tmp[0] == '+') {
6048                                         param->fp_comp_end_sign = -1;
6049                                         tmp++;
6050                                 } else if (tmp[0] == '-') {
6051                                         param->fp_comp_end_sign = 1;
6052                                         tmp++;
6053                                 }
6054
6055                                 if (arg_is_eof(tmp)) {
6056                                         param->fp_comp_end = LUSTRE_EOF;
6057                                         param->fp_comp_end_units = 1;
6058                                         rc = 0;
6059                                 } else {
6060                                         rc = llapi_parse_size(tmp,
6061                                                 &param->fp_comp_end,
6062                                                 &param->fp_comp_end_units, 0);
6063                                         /* assume units of KB if too small */
6064                                         if (param->fp_comp_end < 4096)
6065                                                 param->fp_comp_end *= 1024;
6066                                 }
6067                                 if (rc != 0) {
6068                                         fprintf(stderr,
6069                                                 "error: %s bad component end '%s'.\n",
6070                                                 argv[0], tmp);
6071                                         return CMD_HELP;
6072                                 }
6073                                 param->fp_check_comp_end = 1;
6074                         } else {
6075                                 param->fp_verbose |= VERBOSE_COMP_END;
6076                                 param->fp_max_depth = 0;
6077                         }
6078                         break;
6079                 case 'F':
6080                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6081                                 param->fp_verbose |= VERBOSE_DFID;
6082                                 param->fp_max_depth = 0;
6083                         }
6084                         break;
6085                 case 'g':
6086                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6087                                 param->fp_verbose |= VERBOSE_GENERATION;
6088                                 param->fp_max_depth = 0;
6089                         }
6090                         break;
6091                 case 'i':
6092                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6093                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
6094                                 param->fp_max_depth = 0;
6095                         }
6096                         break;
6097                 case 'I':
6098                         if (optarg) {
6099                                 param->fp_comp_id = strtoul(optarg, &end, 0);
6100                                 if (*end != '\0' || param->fp_comp_id == 0 ||
6101                                     param->fp_comp_id > LCME_ID_MAX) {
6102                                         fprintf(stderr,
6103                                                 "error: %s bad component id '%s'\n",
6104                                                 argv[0], optarg);
6105                                         return CMD_HELP;
6106                                 }
6107                                 param->fp_check_comp_id = 1;
6108                         } else {
6109                                 param->fp_max_depth = 0;
6110                                 param->fp_verbose |= VERBOSE_COMP_ID;
6111                         }
6112                         break;
6113                 case 'L':
6114                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6115                                 param->fp_verbose |= VERBOSE_PATTERN;
6116                                 param->fp_max_depth = 0;
6117                         }
6118                         break;
6119 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6120                 case 'M':
6121                         fprintf(stderr,
6122                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
6123 #endif
6124                 case 'm':
6125                         if (!(param->fp_verbose & VERBOSE_DETAIL))
6126                                 param->fp_max_depth = 0;
6127                         param->fp_verbose |= VERBOSE_MDTINDEX;
6128                         break;
6129                 case 'N':
6130                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6131                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
6132                                 param->fp_max_depth = 0;
6133                         }
6134                         break;
6135                 case 'O':
6136                         if (param->fp_obd_uuid) {
6137                                 fprintf(stderr,
6138                                         "error: %s: only one obduuid allowed",
6139                                         argv[0]);
6140                                 return CMD_HELP;
6141                         }
6142                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
6143                         break;
6144                 case 'p':
6145                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6146                                 param->fp_verbose |= VERBOSE_POOL;
6147                                 param->fp_max_depth = 0;
6148                         }
6149                         break;
6150                 case 'q':
6151                         param->fp_quiet++;
6152                         break;
6153                 case 'r':
6154                         param->fp_recursive = 1;
6155                         break;
6156                 case 'R':
6157                         param->fp_raw = 1;
6158                         break;
6159                 case 'S':
6160                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6161                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
6162                                 param->fp_max_depth = 0;
6163                         }
6164                         break;
6165                 case 'v':
6166                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
6167                         break;
6168                 case 'y':
6169                         param->fp_yaml = 1;
6170                         break;
6171                 case 'z':
6172                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6173                                 param->fp_verbose |= VERBOSE_EXT_SIZE;
6174                                 param->fp_max_depth = 0;
6175                         }
6176                         break;
6177                 default:
6178                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6179                                 progname, argv[optind - 1]);
6180                 case 'h':
6181                         return CMD_HELP;
6182                 }
6183         }
6184
6185         if (pathstart == -1) {
6186                 fprintf(stderr, "error: %s: no filename|pathname\n",
6187                                 argv[0]);
6188                 return CMD_HELP;
6189         } else if (pathend == -1) {
6190                 /* no options */
6191                 pathend = argc;
6192         }
6193
6194         if (pathend > argc)
6195                 return CMD_HELP;
6196
6197         if (param->fp_recursive)
6198                 param->fp_max_depth = -1;
6199         else if (param->fp_verbose & VERBOSE_DETAIL)
6200                 param->fp_max_depth = 1;
6201
6202         if (!param->fp_verbose)
6203                 param->fp_verbose = VERBOSE_DEFAULT;
6204         if (param->fp_quiet)
6205                 param->fp_verbose = VERBOSE_OBJID;
6206
6207         do {
6208                 rc = llapi_getstripe(argv[pathstart], param);
6209         } while (++pathstart < pathend && !rc);
6210
6211         if (rc)
6212                 fprintf(stderr, "error: %s failed for %s.\n",
6213                         argv[0], argv[optind - 1]);
6214         return rc;
6215 }
6216
6217 static int lfs_tgts(int argc, char **argv)
6218 {
6219         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
6220         struct find_param param;
6221         int index = 0, rc = 0;
6222
6223         if (argc > 2)
6224                 return CMD_HELP;
6225
6226         if (argc == 2 && !realpath(argv[1], path)) {
6227                 rc = -errno;
6228                 fprintf(stderr, "error: invalid path '%s': %s\n",
6229                         argv[1], strerror(-rc));
6230                 return rc;
6231         }
6232
6233         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
6234                 /* Check if we have a mount point */
6235                 if (mntdir[0] == '\0')
6236                         continue;
6237
6238                 memset(&param, 0, sizeof(param));
6239                 if (!strcmp(argv[0], "mdts"))
6240                         param.fp_get_lmv = 1;
6241
6242                 rc = llapi_ostlist(mntdir, &param);
6243                 if (rc) {
6244                         fprintf(stderr, "error: %s: failed on %s\n",
6245                                 argv[0], mntdir);
6246                 }
6247                 if (path[0] != '\0')
6248                         break;
6249                 memset(mntdir, 0, PATH_MAX);
6250         }
6251
6252         return rc;
6253 }
6254
6255 static int lfs_getstripe(int argc, char **argv)
6256 {
6257         struct find_param param = { 0 };
6258
6259         param.fp_max_depth = 1;
6260         return lfs_getstripe_internal(argc, argv, &param);
6261 }
6262
6263 /* functions */
6264 static int lfs_getdirstripe(int argc, char **argv)
6265 {
6266         struct find_param param = { 0 };
6267         struct option long_opts[] = {
6268         { .val = 'c',   .name = "mdt-count",     .has_arg = no_argument },
6269         { .val = 'D',   .name = "default",       .has_arg = no_argument },
6270         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6271         { .val = 'H',   .name = "mdt-hash",      .has_arg = no_argument },
6272         { .val = 'i',   .name = "mdt-index",     .has_arg = no_argument },
6273         { .val = 'm',   .name = "mdt-index",     .has_arg = no_argument },
6274         { .val = 'O',   .name = "obd",           .has_arg = required_argument },
6275         { .val = 'r',   .name = "recursive",     .has_arg = no_argument },
6276         { .val = 'T',   .name = "mdt-count",     .has_arg = no_argument },
6277         { .val = 'v',   .name = "verbose",       .has_arg = no_argument },
6278         { .val = 'X',   .name = "max-inherit",   .has_arg = no_argument },
6279         { .val = 'y',   .name = "yaml",          .has_arg = no_argument },
6280         { .val = LFS_INHERIT_RR_OPT,
6281                         .name = "max-inherit-rr", .has_arg = no_argument },
6282         { .name = NULL } };
6283         int c, rc;
6284
6285         param.fp_get_lmv = 1;
6286
6287         while ((c = getopt_long(argc, argv,
6288                                 "cDhHimO:rtTvXy", long_opts, NULL)) != -1) {
6289                 switch (c) {
6290                 case 'c':
6291                 case 'T':
6292                         param.fp_verbose |= VERBOSE_COUNT;
6293                         break;
6294                 case 'D':
6295                         param.fp_get_default_lmv = 1;
6296                         break;
6297 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6298                 case 't':
6299                         fprintf(stderr,
6300                                 "warning: '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6301                         /* fallthrough */
6302 #endif
6303                 case 'H':
6304                         param.fp_verbose |= VERBOSE_HASH_TYPE;
6305                         break;
6306                 case 'i': /* fallthrough */
6307                 case 'm':
6308                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
6309                         break;
6310                 case 'O':
6311                         if (param.fp_obd_uuid) {
6312                                 fprintf(stderr,
6313                                         "%s: only one obduuid allowed",
6314                                         progname);
6315                                 return CMD_HELP;
6316                         }
6317                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
6318                         break;
6319                 case 'r':
6320                         param.fp_recursive = 1;
6321                         break;
6322                 case 'v':
6323                         param.fp_verbose |= VERBOSE_DETAIL;
6324                         break;
6325                 case 'X':
6326                         param.fp_verbose |= VERBOSE_INHERIT;
6327                         break;
6328                 case LFS_INHERIT_RR_OPT:
6329                         param.fp_verbose |= VERBOSE_INHERIT_RR;
6330                         break;
6331                 case 'y':
6332                         param.fp_yaml = 1;
6333                         break;
6334                 default:
6335                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6336                                 progname, argv[optind - 1]);
6337                         /* fallthrough */
6338                 case 'h':
6339                         return CMD_HELP;
6340                 }
6341         }
6342
6343         if (optind >= argc)
6344                 return CMD_HELP;
6345
6346         if (param.fp_recursive)
6347                 param.fp_max_depth = -1;
6348
6349         if (!param.fp_verbose)
6350                 param.fp_verbose = VERBOSE_DEFAULT;
6351
6352         do {
6353                 rc = llapi_getstripe(argv[optind], &param);
6354         } while (++optind < argc && !rc);
6355
6356         if (rc)
6357                 fprintf(stderr, "error: %s failed for %s.\n",
6358                         argv[0], argv[optind - 1]);
6359         return rc;
6360 }
6361
6362 enum mntdf_flags {
6363         MNTDF_INODES    = 0x0001,
6364         MNTDF_COOKED    = 0x0002,
6365         MNTDF_LAZY      = 0x0004,
6366         MNTDF_VERBOSE   = 0x0008,
6367         MNTDF_SHOW      = 0x0010,
6368         MNTDF_DECIMAL   = 0x0020,
6369 };
6370
6371 #define COOK(value, base)                                       \
6372 ({                                                              \
6373         int radix = 0;                                          \
6374         while (value > base) {                                  \
6375                 value /= base;                                  \
6376                 radix++;                                        \
6377         }                                                       \
6378         radix;                                                  \
6379 })
6380 #define UUF     "%-20s"
6381 #define CSF     "%11s"
6382 #define CDF     "%11llu"
6383 #define HDF     "%8.1f%c"
6384 #define RSF     "%4s"
6385 #define RDF     "%3d%%"
6386
6387 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
6388 {
6389         double avail, used, ratio = 0;
6390
6391         if (inodes) {
6392                 avail = st->os_ffree;
6393                 used = st->os_files - st->os_ffree;
6394         } else {
6395                 avail = st->os_bavail;
6396                 used = st->os_blocks - st->os_bfree;
6397         }
6398         if (avail + used > 0)
6399                 ratio = used / (used + avail) * 100;
6400
6401         /* Round up to match df(1) usage percentage */
6402         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
6403 }
6404
6405 /*
6406  * This is to identify various problem states for "lfs df" if .osn_err = true,
6407  * so only show flags reflecting those states by default. Informational states
6408  * are only shown with "-v" and use lower-case names to distinguish them.
6409  * UNUSED[12] were for "EROFS = 30" until 1.6 but are now available for use.
6410  */
6411 static struct obd_statfs_state_names {
6412         enum obd_statfs_state   osn_state;
6413         const char              osn_name;
6414         bool                    osn_err;
6415 } oss_names[] = {
6416         { .osn_state = OS_STATFS_DEGRADED,   .osn_name = 'D', .osn_err = true },
6417         { .osn_state = OS_STATFS_READONLY,   .osn_name = 'R', .osn_err = true },
6418         { .osn_state = OS_STATFS_NOPRECREATE,.osn_name = 'N', .osn_err = true },
6419         { .osn_state = OS_STATFS_UNUSED1,    .osn_name = '?', .osn_err = true },
6420         { .osn_state = OS_STATFS_UNUSED2,    .osn_name = '?', .osn_err = true },
6421         { .osn_state = OS_STATFS_ENOSPC,     .osn_name = 'S', .osn_err = true },
6422         { .osn_state = OS_STATFS_ENOINO,     .osn_name = 'I', .osn_err = true },
6423         { .osn_state = OS_STATFS_SUM,        .osn_name = 'a', /* aggregate */ },
6424         { .osn_state = OS_STATFS_NONROT,     .osn_name = 'f', /* flash */     },
6425 };
6426
6427 static int showdf(char *mntdir, struct obd_statfs *stat,
6428                   char *uuid, enum mntdf_flags flags,
6429                   char *type, int index, int rc)
6430 {
6431         long long avail, used, total;
6432         int ratio = 0;
6433         char *suffix = flags & MNTDF_DECIMAL ? "kMGTPEZY" : "KMGTPEZY";
6434         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
6435         char tbuf[3 * sizeof(__u64)];
6436         char ubuf[3 * sizeof(__u64)];
6437         char abuf[3 * sizeof(__u64)];
6438         char rbuf[3 * sizeof(__u64)];
6439
6440         if (!uuid || !stat)
6441                 return -EINVAL;
6442
6443         switch (rc) {
6444         case 0:
6445                 if (flags & MNTDF_INODES) {
6446                         avail = stat->os_ffree;
6447                         used = stat->os_files - stat->os_ffree;
6448                         total = stat->os_files;
6449                 } else {
6450                         int shift = flags & MNTDF_COOKED ? 0 : 10;
6451
6452                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
6453                         used  = ((stat->os_blocks - stat->os_bfree) *
6454                                  stat->os_bsize) >> shift;
6455                         total = (stat->os_blocks * stat->os_bsize) >> shift;
6456                 }
6457
6458                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
6459
6460                 if (flags & MNTDF_COOKED) {
6461                         int base = flags & MNTDF_DECIMAL ? 1000 : 1024;
6462                         double cook_val;
6463                         int i;
6464
6465                         cook_val = (double)total;
6466                         i = COOK(cook_val, base);
6467                         if (i > 0)
6468                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
6469                                          suffix[i - 1]);
6470                         else
6471                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
6472
6473                         cook_val = (double)used;
6474                         i = COOK(cook_val, base);
6475                         if (i > 0)
6476                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
6477                                          suffix[i - 1]);
6478                         else
6479                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
6480
6481                         cook_val = (double)avail;
6482                         i = COOK(cook_val, base);
6483                         if (i > 0)
6484                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
6485                                          suffix[i - 1]);
6486                         else
6487                                 snprintf(abuf, sizeof(abuf), CDF, avail);
6488                 } else {
6489                         snprintf(tbuf, sizeof(tbuf), CDF, total);
6490                         snprintf(ubuf, sizeof(tbuf), CDF, used);
6491                         snprintf(abuf, sizeof(tbuf), CDF, avail);
6492                 }
6493
6494                 sprintf(rbuf, RDF, ratio);
6495                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
6496                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
6497                 if (type)
6498                         printf("[%s:%d]", type, index);
6499
6500                 if (stat->os_state) {
6501                         uint32_t i;
6502
6503                         printf(" ");
6504                         for (i = 0; i < ARRAY_SIZE(oss_names); i++) {
6505                                 if (oss_names[i].osn_state & stat->os_state &&
6506                                     (oss_names[i].osn_err ||
6507                                      flags & MNTDF_VERBOSE))
6508                                         printf("%c", oss_names[i].osn_name);
6509                         }
6510                 }
6511
6512                 printf("\n");
6513                 break;
6514         case -ENODATA:
6515                 printf(UUF": inactive device\n", uuid);
6516                 break;
6517         default:
6518                 printf(UUF": %s\n", uuid, strerror(-rc));
6519                 break;
6520         }
6521
6522         return 0;
6523 }
6524
6525 struct ll_stat_type {
6526         int   st_op;
6527         char *st_name;
6528 };
6529
6530 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
6531
6532 struct ll_statfs_data {
6533         int                     sd_index;
6534         struct obd_statfs       sd_st;
6535 };
6536
6537 struct ll_statfs_buf {
6538         int                     sb_count;
6539         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
6540 };
6541
6542 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
6543                  int ops, struct ll_statfs_buf *lsb)
6544 {
6545         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
6546         struct obd_uuid uuid_buf;
6547         char *poolname = NULL;
6548         struct ll_stat_type types[] = {
6549                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
6550                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
6551                 { .st_name = NULL } };
6552         struct ll_stat_type *tp;
6553         __u64 ost_files = 0;
6554         __u64 ost_ffree = 0;
6555         __u32 index;
6556         __u32 type;
6557         int fd;
6558         int rc = 0;
6559         int rc2;
6560
6561         if (pool) {
6562                 poolname = strchr(pool, '.');
6563                 if (poolname) {
6564                         if (strncmp(fsname, pool, strlen(fsname))) {
6565                                 fprintf(stderr, "filesystem name incorrect\n");
6566                                 return -ENODEV;
6567                         }
6568                         poolname++;
6569                 } else
6570                         poolname = pool;
6571         }
6572
6573         fd = open(mntdir, O_RDONLY);
6574         if (fd < 0) {
6575                 rc = -errno;
6576                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
6577                         strerror(errno));
6578                 return rc;
6579         }
6580
6581         if (flags & MNTDF_SHOW) {
6582                 if (flags & MNTDF_INODES)
6583                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6584                                "UUID", "Inodes", "IUsed", "IFree",
6585                                "IUse%", "Mounted on");
6586                 else
6587                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6588                                "UUID",
6589                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
6590                                "Used", "Available", "Use%", "Mounted on");
6591         }
6592
6593         for (tp = types; tp->st_name != NULL; tp++) {
6594                 bool have_ost = false;
6595
6596                 if (!(tp->st_op & ops))
6597                         continue;
6598
6599                 for (index = 0; ; index++) {
6600                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
6601                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
6602                         type = flags & MNTDF_LAZY ?
6603                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
6604                         rc2 = llapi_obd_fstatfs(fd, type, index,
6605                                                &stat_buf, &uuid_buf);
6606                         if (rc2 == -ENODEV)
6607                                 break;
6608                         if (rc2 == -EAGAIN)
6609                                 continue;
6610                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
6611                                 if (!(flags & MNTDF_VERBOSE))
6612                                         continue;
6613                         } else if (rc2 < 0 && rc == 0) {
6614                                 rc = rc2;
6615                         }
6616
6617                         /*
6618                          * If we have OSTs then don't report MDT block counts.
6619                          * For MDT-only filesystems the expectation is that all
6620                          * layouts have a DoM component.  For filesystems with
6621                          * OSTs, files are not necessarily going to store data
6622                          * on MDTs, and MDT space is limited to a fraction of
6623                          * OST space, so don't include it in the summary.
6624                          */
6625                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
6626                                 have_ost = true;
6627                                 sum.os_blocks = 0;
6628                                 sum.os_bfree = 0;
6629                                 sum.os_bavail = 0;
6630                         }
6631
6632                         if (poolname && tp->st_op == LL_STATFS_LOV &&
6633                             llapi_search_ost(fsname, poolname,
6634                                              obd_uuid2str(&uuid_buf)) != 1)
6635                                 continue;
6636
6637                         /*
6638                          * the llapi_obd_fstatfs() call may have returned with
6639                          * an error, but if it filled in uuid_buf we will at
6640                          * lease use that to print out a message for that OBD.
6641                          * If we didn't get anything in the uuid_buf, then fill
6642                          * it in so that we can print an error message.
6643                          */
6644                         if (uuid_buf.uuid[0] == '\0')
6645                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
6646                                          "%s%04x", tp->st_name, index);
6647                         if (!rc && lsb) {
6648                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
6649                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
6650                                 lsb->sb_count++;
6651                         }
6652                         if (flags & MNTDF_SHOW)
6653                                 showdf(mntdir, &stat_buf,
6654                                        obd_uuid2str(&uuid_buf), flags,
6655                                        tp->st_name, index, rc2);
6656
6657                         if (rc2)
6658                                 continue;
6659
6660                         if (tp->st_op == LL_STATFS_LMV) {
6661                                 sum.os_ffree += stat_buf.os_ffree;
6662                                 sum.os_files += stat_buf.os_files;
6663                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
6664                                 ost_files += stat_buf.os_files;
6665                                 ost_ffree += stat_buf.os_ffree;
6666                         }
6667                         sum.os_blocks += stat_buf.os_blocks *
6668                                          stat_buf.os_bsize;
6669                         sum.os_bfree  += stat_buf.os_bfree *
6670                                          stat_buf.os_bsize;
6671                         sum.os_bavail += stat_buf.os_bavail *
6672                                          stat_buf.os_bsize;
6673                 }
6674         }
6675
6676         close(fd);
6677
6678         /*
6679          * If we have _some_ OSTs, but don't have as many free objects on the
6680          * OST as inodes on the MDTs, reduce the reported number of inodes
6681          * to compensate, so that the "inodes in use" number is correct.
6682          * This should be kept in sync with ll_statfs_internal().
6683          */
6684         if (ost_files && ost_ffree < sum.os_ffree) {
6685                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
6686                 sum.os_ffree = ost_ffree;
6687         }
6688         if (flags & MNTDF_SHOW) {
6689                 printf("\n");
6690                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
6691                 printf("\n");
6692         }
6693
6694         return rc;
6695 }
6696
6697 enum {
6698         LAYOUT_INHERIT_UNSET    = -2,
6699 };
6700
6701 /* functions */
6702 static int lfs_setdirstripe(int argc, char **argv)
6703 {
6704         char *dname;
6705         struct lfs_setstripe_args lsa = { 0 };
6706         struct llapi_stripe_param *param = NULL;
6707         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
6708         char *end;
6709         int c;
6710         char *mode_opt = NULL;
6711         bool default_stripe = false;
6712         bool delete = false;
6713         bool foreign_mode = false;
6714         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
6715         mode_t previous_mode = 0;
6716         char *xattr = NULL;
6717         __u32 type = LU_FOREIGN_TYPE_SYMLINK, flags = 0;
6718         int max_inherit = LAYOUT_INHERIT_UNSET;
6719         int max_inherit_rr = LAYOUT_INHERIT_UNSET;
6720         struct option long_opts[] = {
6721         { .val = 'c',   .name = "count",        .has_arg = required_argument },
6722         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
6723         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
6724         { .val = 'D',   .name = "default",      .has_arg = no_argument },
6725         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
6726         { .val = LFS_LAYOUT_FLAGS_OPT,
6727                         .name = "flags",        .has_arg = required_argument },
6728         { .val = LFS_LAYOUT_FOREIGN_OPT,
6729                         .name = "foreign",      .has_arg = optional_argument},
6730         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6731         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
6732 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
6733         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
6734         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
6735 #else
6736 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
6737         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6738         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6739 #endif
6740 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6741         { .val = 'i',   .name = "index",        .has_arg = required_argument },
6742 #endif
6743         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
6744 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6745         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
6746 #endif
6747         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
6748         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
6749         { .val = 'X',   .name = "max-inherit",  .has_arg = required_argument },
6750         { .val = LFS_INHERIT_RR_OPT,
6751                         .name = "max-inherit-rr", .has_arg = required_argument},
6752 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
6753         { .name = NULL } };
6754         int result = 0;
6755
6756         setstripe_args_init(&lsa);
6757
6758         while ((c = getopt_long(argc, argv, "c:dDi:hH:m:o:t:T:x:X:",
6759                                 long_opts, NULL)) >= 0) {
6760                 switch (c) {
6761                 case 0:
6762                         /* Long options. */
6763                         break;
6764                 case 'c':
6765                 case 'T':
6766                         errno = 0;
6767                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
6768                         if (errno != 0 || *end != '\0' ||
6769                             lsa.lsa_stripe_count < -1 ||
6770                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
6771                                 fprintf(stderr,
6772                                         "%s: invalid stripe count '%s'\n",
6773                                         progname, optarg);
6774                                 return CMD_HELP;
6775                         }
6776                         break;
6777                 case 'd':
6778                         delete = true;
6779                         default_stripe = true;
6780                         break;
6781                 case 'D':
6782                         default_stripe = true;
6783                         break;
6784                 case LFS_LAYOUT_FOREIGN_OPT:
6785                         if (optarg) {
6786                                 /* check pure numeric */
6787                                 type = strtoul(optarg, &end, 0);
6788                                 if (*end) {
6789                                         /* check name */
6790                                         type = check_foreign_type_name(optarg);
6791                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
6792                                                 fprintf(stderr,
6793                                                         "%s %s: unknown foreign type '%s'\n",
6794                                                         progname, argv[0],
6795                                                         optarg);
6796                                                 return CMD_HELP;
6797                                         }
6798                                 } else if (type >= UINT32_MAX) {
6799                                         fprintf(stderr,
6800                                                 "%s %s: invalid foreign type '%s'\n",
6801                                                 progname, argv[0], optarg);
6802                                         return CMD_HELP;
6803                                 }
6804                         }
6805                         foreign_mode = true;
6806                         break;
6807                 case LFS_LAYOUT_FLAGS_OPT:
6808                         errno = 0;
6809                         flags = strtoul(optarg, &end, 16);
6810                         if (errno != 0 || *end != '\0' ||
6811                             flags >= UINT32_MAX) {
6812                                 fprintf(stderr,
6813                                         "%s %s: invalid hex flags '%s'\n",
6814                                         progname, argv[0], optarg);
6815                                 return CMD_HELP;
6816                         }
6817                         if (!foreign_mode) {
6818                                 fprintf(stderr,
6819                                         "%s %s: hex flags must be specified with --foreign option\n",
6820                                         progname, argv[0]);
6821                                 return CMD_HELP;
6822                         }
6823                         break;
6824 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6825                 case 't':
6826                         fprintf(stderr,
6827                                 "warning: '--hash-type' and '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6828                         /* fallthrough */
6829 #endif
6830                 case 'H':
6831                         lsa.lsa_pattern = check_hashtype(optarg);
6832                         if (lsa.lsa_pattern == 0) {
6833                                 fprintf(stderr,
6834                                         "%s %s: bad stripe hash type '%s'\n",
6835                                         progname, argv[0], optarg);
6836                                 return CMD_HELP;
6837                         }
6838                         break;
6839                 case 'i':
6840 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
6841                 case 'm':
6842 #endif
6843 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6844                         if (strcmp(argv[optind - 1], "--index") == 0)
6845                                 fprintf(stderr,
6846                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
6847                                         progname, argv[0]);
6848 #endif
6849                         lsa.lsa_nr_tgts = parse_targets(mdts,
6850                                                 sizeof(mdts) / sizeof(__u32),
6851                                                 lsa.lsa_nr_tgts, optarg, NULL);
6852                         if (lsa.lsa_nr_tgts < 0) {
6853                                 fprintf(stderr,
6854                                         "%s %s: invalid MDT target(s) '%s'\n",
6855                                         progname, argv[0], optarg);
6856                                 return CMD_HELP;
6857                         }
6858
6859                         lsa.lsa_tgts = mdts;
6860                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6861                                 lsa.lsa_stripe_off = mdts[0];
6862                         break;
6863 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
6864                 case 'm':
6865                         fprintf(stderr,
6866                                 "warning: '-m' is deprecated, use '--mode' or '-o' instead\n");
6867 #endif
6868                 case 'o':
6869                         mode_opt = optarg;
6870                         break;
6871                 case 'x':
6872                         xattr = optarg;
6873                         break;
6874                 case 'X':
6875                         if (!default_stripe) {
6876                                 fprintf(stderr,
6877                                         "%s %s: '--max-inherit' must be specified with '-D'\n",
6878                                         progname, argv[0]);
6879                                 return CMD_HELP;
6880                         }
6881                         errno = 0;
6882                         max_inherit = strtol(optarg, &end, 10);
6883                         if (errno != 0 || *end != '\0' || max_inherit < -2) {
6884                                 fprintf(stderr,
6885                                         "%s %s: invalid max-inherit '%s'\n",
6886                                         progname, argv[0], optarg);
6887                                 return CMD_HELP;
6888                         }
6889                         if (max_inherit == 0) {
6890                                 max_inherit = LMV_INHERIT_NONE;
6891                         } else if (max_inherit == -1) {
6892                                 max_inherit = LMV_INHERIT_UNLIMITED;
6893                         } else if (max_inherit > LMV_INHERIT_MAX) {
6894                                 fprintf(stderr,
6895                                         "%s %s: max-inherit %d exceeds maximum %u\n",
6896                                         progname, argv[0], max_inherit,
6897                                         LMV_INHERIT_MAX);
6898                                 return CMD_HELP;
6899                         }
6900                         break;
6901                 case LFS_INHERIT_RR_OPT:
6902                         if (!default_stripe) {
6903                                 fprintf(stderr,
6904                                         "%s %s: '--max-inherit-rr' must be specified with '-D'\n",
6905                                         progname, argv[0]);
6906                                 return CMD_HELP;
6907                         }
6908                         errno = 0;
6909                         max_inherit_rr = strtol(optarg, &end, 10);
6910                         if (errno != 0 || *end != '\0' || max_inherit_rr < -2) {
6911                                 fprintf(stderr,
6912                                         "%s %s: invalid max-inherit-rr '%s'\n",
6913                                         progname, argv[0], optarg);
6914                                 return CMD_HELP;
6915                         }
6916                         if (max_inherit_rr == 0) {
6917                                 max_inherit_rr = LMV_INHERIT_RR_NONE;
6918                         } else if (max_inherit_rr == -1) {
6919                                 max_inherit_rr = LMV_INHERIT_RR_UNLIMITED;
6920                         } else if (max_inherit_rr > LMV_INHERIT_RR_MAX) {
6921                                 fprintf(stderr,
6922                                         "%s %s: max-inherit-rr %d exceeds maximum %u\n",
6923                                         progname, argv[0], max_inherit_rr,
6924                                         LMV_INHERIT_RR_MAX);
6925                                 return CMD_HELP;
6926                         }
6927                         break;
6928                 default:
6929                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6930                                 progname, argv[optind - 1]);
6931                         /* fallthrough */
6932                 case 'h':
6933                         return CMD_HELP;
6934                 }
6935         }
6936
6937         if (optind == argc) {
6938                 fprintf(stderr, "%s %s: DIR must be specified\n",
6939                         progname, argv[0]);
6940                 return CMD_HELP;
6941         }
6942
6943         if (xattr && !foreign_mode) {
6944                 /*
6945                  * only print a warning as this is armless and will be
6946                  * ignored
6947                  */
6948                 fprintf(stderr,
6949                         "%s %s: xattr has been specified for non-foreign layout\n",
6950                         progname, argv[0]);
6951         } else if (foreign_mode && !xattr) {
6952                 fprintf(stderr,
6953                         "%s %s: xattr must be provided in foreign mode\n",
6954                         progname, argv[0]);
6955                 return CMD_HELP;
6956         }
6957
6958         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
6959             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
6960                 fprintf(stderr,
6961                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
6962                         progname, argv[0]);
6963                 return CMD_HELP;
6964         }
6965
6966         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
6967             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
6968                 /* if no parameters set, create directory on least-used MDTs */
6969                 lsa.lsa_stripe_off = LMV_OFFSET_DEFAULT;
6970                 lsa.lsa_stripe_count = 1;
6971         }
6972
6973         if (delete &&
6974             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
6975              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
6976                 fprintf(stderr,
6977                         "%s %s: cannot specify -d with -c or -i options\n",
6978                         progname, argv[0]);
6979                 return CMD_HELP;
6980         }
6981
6982         if (mode_opt) {
6983                 mode = strtoul(mode_opt, &end, 8);
6984                 if (*end != '\0') {
6985                         fprintf(stderr,
6986                                 "%s %s: bad MODE '%s'\n",
6987                                 progname, argv[0], mode_opt);
6988                         return CMD_HELP;
6989                 }
6990                 previous_mode = umask(0);
6991         }
6992
6993         if (max_inherit_rr != LAYOUT_INHERIT_UNSET &&
6994             lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
6995             lsa.lsa_stripe_off != LMV_OFFSET_DEFAULT) {
6996                 fprintf(stderr,
6997                         "%s %s: max-inherit-rr needs mdt-index=-1, not %lld\n",
6998                         progname, argv[0], lsa.lsa_stripe_off);
6999                 return CMD_HELP;
7000         }
7001
7002         /* foreign LMV/dir case */
7003         if (foreign_mode) {
7004                 if (argc > optind + 1) {
7005                         fprintf(stderr,
7006                                 "%s %s: cannot specify multiple foreign dirs\n",
7007                                 progname, argv[0]);
7008                         return CMD_HELP;
7009                 }
7010
7011                 dname = argv[optind];
7012                 result = llapi_dir_create_foreign(dname, mode, type, flags,
7013                                                   xattr);
7014                 if (result != 0)
7015                         fprintf(stderr,
7016                                 "%s mkdir: can't create foreign dir '%s': %s\n",
7017                                 progname, dname, strerror(-result));
7018                 return result;
7019         }
7020
7021         /*
7022          * initialize stripe parameters, in case param is converted to specific,
7023          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
7024          */
7025         param = calloc(1, offsetof(typeof(*param),
7026                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
7027                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
7028         if (!param) {
7029                 fprintf(stderr,
7030                         "%s %s: cannot allocate memory for parameters: %s\n",
7031                         progname, argv[0], strerror(ENOMEM));
7032                 return CMD_HELP;
7033         }
7034
7035         /* if "lfs setdirstripe -D -i -1" is used, assume 1-stripe directory */
7036         if (default_stripe && lsa.lsa_stripe_off == LMV_OFFSET_DEFAULT &&
7037             (lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT ||
7038              lsa.lsa_stripe_count == 0))
7039                 lsa.lsa_stripe_count = 1;
7040         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
7041                 param->lsp_stripe_count = lsa.lsa_stripe_count;
7042         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
7043                 param->lsp_stripe_offset = LMV_OFFSET_DEFAULT;
7044         else
7045                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
7046         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
7047                 param->lsp_stripe_pattern = lsa.lsa_pattern;
7048         else
7049                 param->lsp_stripe_pattern = LMV_HASH_TYPE_UNKNOWN;
7050         param->lsp_pool = lsa.lsa_pool_name;
7051         param->lsp_is_specific = false;
7052         if (default_stripe) {
7053                 if (max_inherit == LAYOUT_INHERIT_UNSET)
7054                         max_inherit = LMV_INHERIT_DEFAULT;
7055                 if (max_inherit_rr == LAYOUT_INHERIT_UNSET)
7056                         max_inherit_rr = LMV_INHERIT_RR_DEFAULT;
7057                 param->lsp_max_inherit = max_inherit;
7058                 param->lsp_max_inherit_rr = max_inherit_rr;
7059         }
7060         if (strcmp(argv[0], "mkdir") == 0)
7061                 param->lsp_is_create = true;
7062         if (lsa.lsa_nr_tgts > 1) {
7063                 if (lsa.lsa_stripe_count > 0 &&
7064                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
7065                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
7066                         fprintf(stderr,
7067                                 "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
7068                                 argv[0], lsa.lsa_stripe_count,
7069                                 lsa.lsa_nr_tgts);
7070                         free(param);
7071                         return CMD_HELP;
7072                 }
7073
7074                 param->lsp_is_specific = true;
7075                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
7076                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
7077         }
7078
7079         dname = argv[optind];
7080         do {
7081                 if (default_stripe) {
7082                         result = llapi_dir_set_default_lmv(dname, param);
7083                         if (result)
7084                                 fprintf(stderr,
7085                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
7086                                         progname, dname, strerror(-result));
7087                         continue;
7088                 }
7089
7090                 result = llapi_dir_create(dname, mode, param);
7091                 if (result)
7092                         fprintf(stderr,
7093                                 "%s setdirstripe: cannot create dir '%s': %s\n",
7094                                 progname, dname, strerror(-result));
7095         } while (!result && (dname = argv[++optind]));
7096
7097         if (mode_opt)
7098                 umask(previous_mode);
7099
7100         free(param);
7101         return result;
7102 }
7103
7104 /* functions */
7105 static int lfs_rmentry(int argc, char **argv)
7106 {
7107         char *dname;
7108         int   index;
7109         int   result = 0;
7110
7111         if (argc <= 1) {
7112                 fprintf(stderr, "error: %s: missing dirname\n",
7113                         argv[0]);
7114                 return CMD_HELP;
7115         }
7116
7117         index = 1;
7118         dname = argv[index];
7119         while (dname) {
7120                 result = llapi_direntry_remove(dname);
7121                 if (result) {
7122                         fprintf(stderr,
7123                                 "error: %s: remove dir entry '%s' failed\n",
7124                                 argv[0], dname);
7125                         break;
7126                 }
7127                 dname = argv[++index];
7128         }
7129         return result;
7130 }
7131
7132 static int lfs_unlink_foreign(int argc, char **argv)
7133 {
7134         char *name;
7135         int   index;
7136         int   result = 0;
7137
7138         if (argc <= 1) {
7139                 fprintf(stderr, "error: %s: missing pathname\n",
7140                         argv[0]);
7141                 return CMD_HELP;
7142         }
7143
7144         index = 1;
7145         name = argv[index];
7146         while (name != NULL) {
7147                 result = llapi_unlink_foreign(name);
7148                 if (result) {
7149                         fprintf(stderr,
7150                                 "error: %s: unlink foreign entry '%s' failed\n",
7151                                 argv[0], name);
7152                         break;
7153                 }
7154                 name = argv[++index];
7155         }
7156         return result;
7157 }
7158
7159 static int lfs_mv(int argc, char **argv)
7160 {
7161         struct lmv_user_md lmu = { LMV_USER_MAGIC };
7162         struct find_param param = {
7163                 .fp_max_depth = -1,
7164                 .fp_mdt_index = -1,
7165         };
7166         char *end;
7167         int c;
7168         int rc = 0;
7169         struct option long_opts[] = {
7170         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
7171         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
7172         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
7173         { .name = NULL } };
7174
7175         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
7176                 switch (c) {
7177 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7178                 case 'M':
7179                         fprintf(stderr,
7180                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
7181 #endif
7182                 case 'm':
7183                         errno = 0;
7184                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
7185                         if (errno != 0 || *end != '\0' ||
7186                             lmu.lum_stripe_offset >= UINT32_MAX) {
7187                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
7188                                         progname, optarg);
7189                                 return CMD_HELP;
7190                         }
7191                         break;
7192                 case 'v':
7193                         param.fp_verbose = VERBOSE_DETAIL;
7194                         break;
7195                 default:
7196                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
7197                                 progname, argv[optind - 1]);
7198                         return CMD_HELP;
7199                 }
7200         }
7201
7202         if (lmu.lum_stripe_offset == LMV_OFFSET_DEFAULT) {
7203                 fprintf(stderr, "%s mv: MDT index must be specified\n",
7204                         progname);
7205                 return CMD_HELP;
7206         }
7207
7208         if (optind >= argc) {
7209                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
7210                 return CMD_HELP;
7211         }
7212
7213         lmu.lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
7214
7215         /* initialize migrate mdt parameters */
7216         param.fp_lmv_md = &lmu;
7217         param.fp_migrate = 1;
7218         rc = llapi_migrate_mdt(argv[optind], &param);
7219         if (rc != 0)
7220                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
7221                         progname, argv[optind], lmu.lum_stripe_offset,
7222                         strerror(-rc));
7223         return rc;
7224 }
7225
7226 static int lfs_osts(int argc, char **argv)
7227 {
7228         return lfs_tgts(argc, argv);
7229 }
7230
7231 static int lfs_mdts(int argc, char **argv)
7232 {
7233         return lfs_tgts(argc, argv);
7234 }
7235
7236 static int lfs_df(int argc, char **argv)
7237 {
7238         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
7239         enum mntdf_flags flags = MNTDF_SHOW;
7240         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
7241         int c, rc = 0, index = 0;
7242         char fsname[PATH_MAX] = "", *pool_name = NULL;
7243         struct option long_opts[] = {
7244         { .val = 'h',   .name = "human-readable", .has_arg = no_argument },
7245         { .val = 'H',   .name = "si",           .has_arg = no_argument },
7246         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
7247         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
7248         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
7249         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
7250         { .name = NULL} };
7251
7252         while ((c = getopt_long(argc, argv, "hHilp:v", long_opts, NULL)) != -1) {
7253                 switch (c) {
7254                 case 'h':
7255                         flags = (flags & ~MNTDF_DECIMAL) | MNTDF_COOKED;
7256                         break;
7257                 case 'H':
7258                         flags |= MNTDF_COOKED | MNTDF_DECIMAL;
7259                         break;
7260                 case 'i':
7261                         flags |= MNTDF_INODES;
7262                         break;
7263                 case 'l':
7264                         flags |= MNTDF_LAZY;
7265                         break;
7266                 case 'p':
7267                         pool_name = optarg;
7268                         break;
7269                 case 'v':
7270                         flags |= MNTDF_VERBOSE;
7271                         break;
7272                 default:
7273                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7274                                 progname, argv[optind - 1]);
7275                         return CMD_HELP;
7276                 }
7277         }
7278         if (optind < argc && !realpath(argv[optind], path)) {
7279                 rc = -errno;
7280                 fprintf(stderr, "%s: invalid path '%s': %s\n",
7281                         progname, argv[optind], strerror(-rc));
7282                 return rc;
7283         }
7284
7285         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7286                 /* Check if we have a mount point */
7287                 if (mntdir[0] == '\0')
7288                         continue;
7289
7290                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
7291                 if (rc || path[0] != '\0')
7292                         break;
7293                 fsname[0] = '\0'; /* avoid matching in next loop */
7294                 mntdir[0] = '\0'; /* avoid matching in next loop */
7295         }
7296
7297         return rc;
7298 }
7299
7300 static int print_instance(const char *mntdir, char *buf, size_t buflen,
7301                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
7302 {
7303         int rc = 0;
7304
7305         if (opt_fsname == opt_instance) { /* both true or both false */
7306                 rc = llapi_getname(mntdir, buf, buflen);
7307         } else if (opt_fsname) {
7308                 /*
7309                  * llapi_search_mounts() fills @buf with fsname, but that is not
7310                  * called if explicit paths are specified on the command-line
7311                  */
7312                 if (buf[0] == '\0')
7313                         rc = llapi_get_fsname(mntdir, buf, buflen);
7314         } else /* if (opt_instance) */ {
7315                 rc = llapi_get_instance(mntdir, buf, buflen);
7316         }
7317
7318         if (rc < 0) {
7319                 fprintf(stderr, "cannot get instance for '%s': %s\n",
7320                         mntdir, strerror(-rc));
7321                 return rc;
7322         }
7323
7324         if (opt_mntdir)
7325                 printf("%s %s\n", buf, mntdir);
7326         else
7327                 printf("%s\n", buf);
7328
7329         return 0;
7330 }
7331
7332 static int lfs_getname(int argc, char **argv)
7333 {
7334         struct option long_opts[] = {
7335         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7336         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
7337         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
7338         { .name = NULL} };
7339         bool opt_instance = false, opt_fsname = false;
7340         char fsname[PATH_MAX] = "";
7341         int rc = 0, rc2, c;
7342
7343         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
7344                 switch (c) {
7345                 case 'i':
7346                         opt_instance = true;
7347                         break;
7348                 case 'n':
7349                         opt_fsname = true;
7350                         break;
7351                 default:
7352                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7353                                 progname, argv[optind - 1]);
7354                         /* fallthrough */
7355                 case 'h':
7356                         return CMD_HELP;
7357                 }
7358         }
7359
7360         if (optind == argc) { /* no paths specified, get all paths. */
7361                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
7362                 int index = 0;
7363
7364                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7365                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
7366                                              opt_instance, opt_fsname, true);
7367                         if (!rc)
7368                                 rc = rc2;
7369                         path[0] = fsname[0] = mntdir[0] = '\0';
7370                 }
7371         } else { /* paths specified, only attempt to search these. */
7372                 bool opt_mntdir;
7373
7374                 /* if only one path is given, print only requested info */
7375                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
7376
7377                 for (; optind < argc; optind++) {
7378                         rc2 = print_instance(argv[optind], fsname,
7379                                              sizeof(fsname), opt_instance,
7380                                              opt_fsname, opt_mntdir);
7381                         if (!rc)
7382                                 rc = rc2;
7383                         fsname[0] = '\0';
7384                 }
7385         }
7386
7387         return rc;
7388 }
7389
7390 static int lfs_check(int argc, char **argv)
7391 {
7392         char mntdir[PATH_MAX] = {'\0'};
7393         int num_types = 1;
7394         char *obd_types[3];
7395         char obd_type1[4];
7396         char obd_type2[4];
7397         char obd_type3[4];
7398         int rc;
7399
7400         if (argc != 2) {
7401                 fprintf(stderr, "%s check: server type must be specified\n",
7402                         progname);
7403                 return CMD_HELP;
7404         }
7405
7406         obd_types[0] = obd_type1;
7407         obd_types[1] = obd_type2;
7408         obd_types[2] = obd_type3;
7409
7410         if (strcmp(argv[1], "osts") == 0) {
7411                 strcpy(obd_types[0], "osc");
7412         } else if (strcmp(argv[1], "mdts") == 0 ||
7413                    strcmp(argv[1], "mds") == 0) {
7414                 strcpy(obd_types[0], "mdc");
7415         } else if (strcmp(argv[1], "mgts") == 0) {
7416                 strcpy(obd_types[0], "mgc");
7417         } else if (strcmp(argv[1], "all") == 0 ||
7418                    strcmp(argv[1], "servers") == 0) {
7419                 num_types = 3;
7420                 strcpy(obd_types[0], "osc");
7421                 strcpy(obd_types[1], "mdc");
7422                 strcpy(obd_types[2], "mgc");
7423         } else {
7424                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
7425                         progname, argv[1]);
7426                 return CMD_HELP;
7427         }
7428
7429         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
7430         if (rc < 0 || mntdir[0] == '\0') {
7431                 fprintf(stderr,
7432                         "%s check: cannot find mounted Lustre filesystem: %s\n",
7433                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
7434                 return rc;
7435         }
7436
7437         rc = llapi_target_check(num_types, obd_types, mntdir);
7438         if (rc)
7439                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
7440                         progname, argv[1], strerror(-rc));
7441
7442         return rc;
7443 }
7444
7445 #ifdef HAVE_SYS_QUOTA_H
7446 #define ADD_OVERFLOW(a, b) \
7447                      ((((a) + (b)) < (a)) ? \
7448                       ((a) = ULONG_MAX) : ((a) = (a) + (b)))
7449
7450 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
7451  * returns the value or ULONG_MAX on integer overflow or incorrect format
7452  * Notes:
7453  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
7454  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
7455  *        3. empty integer value is interpreted as 0
7456  */
7457 static unsigned long str2sec(const char *timestr)
7458 {
7459         const char spec[] = "smhdw";
7460         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7461         unsigned long val = 0;
7462         char *tail;
7463
7464         if (strpbrk(timestr, spec) == NULL) {
7465                 /*
7466                  * no specifiers inside the time string,
7467                  * should treat it as an integer value
7468                  */
7469                 val = strtoul(timestr, &tail, 10);
7470                 return *tail ? ULONG_MAX : val;
7471         }
7472
7473         /* format string is XXwXXdXXhXXmXXs */
7474         while (*timestr) {
7475                 unsigned long v;
7476                 int ind;
7477                 char *ptr;
7478
7479                 v = strtoul(timestr, &tail, 10);
7480                 if (v == ULONG_MAX || *tail == '\0')
7481                         /*
7482                          * value too large (ULONG_MAX or more)
7483                          * or missing specifier
7484                          */
7485                         goto error;
7486
7487                 ptr = strchr(spec, *tail);
7488                 if (!ptr)
7489                         /* unknown specifier */
7490                         goto error;
7491
7492                 ind = ptr - spec;
7493
7494                 /* check if product will overflow the type */
7495                 if (!(v < ULONG_MAX / mult[ind]))
7496                         goto error;
7497
7498                 ADD_OVERFLOW(val, mult[ind] * v);
7499                 if (val == ULONG_MAX)
7500                         goto error;
7501
7502                 timestr = tail + 1;
7503         }
7504
7505         return val;
7506
7507 error:
7508         return ULONG_MAX;
7509 }
7510
7511 #define ARG2ULL(nr, str, def_units)                                     \
7512 do {                                                                    \
7513         unsigned long long limit, units = def_units;                    \
7514         int rc;                                                         \
7515                                                                         \
7516         rc = llapi_parse_size(str, &limit, &units, 1);                  \
7517         if (rc < 0) {                                                   \
7518                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
7519                         progname, str);                                 \
7520                 return CMD_HELP;                                        \
7521         }                                                               \
7522         nr = limit;                                                     \
7523 } while (0)
7524
7525 static inline int has_times_option(int argc, char **argv)
7526 {
7527         int i;
7528
7529         for (i = 1; i < argc; i++)
7530                 if (!strcmp(argv[i], "-t"))
7531                         return 1;
7532
7533         return 0;
7534 }
7535
7536 static inline int lfs_verify_poolarg(char *pool)
7537 {
7538         if (strnlen(optarg, LOV_MAXPOOLNAME + 1) > LOV_MAXPOOLNAME) {
7539                 fprintf(stderr,
7540                         "Pool name '%.*s' is longer than %d\n",
7541                         LOV_MAXPOOLNAME, pool, LOV_MAXPOOLNAME);
7542                 return 1;
7543         }
7544         return 0;
7545 }
7546
7547 int lfs_setquota_times(int argc, char **argv, struct if_quotactl *qctl)
7548 {
7549         int c, rc;
7550         char *mnt, *obd_type = (char *)qctl->obd_type;
7551         struct obd_dqblk *dqb = &qctl->qc_dqblk;
7552         struct obd_dqinfo *dqi = &qctl->qc_dqinfo;
7553         struct option long_opts[] = {
7554         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
7555         { .val = 'g',   .name = "group",        .has_arg = no_argument },
7556         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7557         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
7558         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
7559         { .val = 't',   .name = "times",        .has_arg = no_argument },
7560         { .val = 'u',   .name = "user",         .has_arg = no_argument },
7561         { .val = LFS_POOL_OPT,
7562                         .name = "pool",         .has_arg = required_argument },
7563         { .name = NULL } };
7564         int qtype;
7565
7566         qctl->qc_cmd  = LUSTRE_Q_SETINFO;
7567         qctl->qc_type = ALLQUOTA;
7568
7569         while ((c = getopt_long(argc, argv, "b:ghi:ptu",
7570                                 long_opts, NULL)) != -1) {
7571                 switch (c) {
7572                 case 'u':
7573                         qtype = USRQUOTA;
7574                         goto quota_type;
7575                 case 'g':
7576                         qtype = GRPQUOTA;
7577                         goto quota_type;
7578                 case 'p':
7579                         qtype = PRJQUOTA;
7580 quota_type:
7581                         if (qctl->qc_type != ALLQUOTA) {
7582                                 fprintf(stderr,
7583                                         "%s: -u/g/p cannot be used more than once\n",
7584                                         progname);
7585                                 return CMD_HELP;
7586                         }
7587                         qctl->qc_type = qtype;
7588                         break;
7589                 case 'b':
7590                         if (strncmp(optarg, NOTIFY_GRACE,
7591                                     strlen(NOTIFY_GRACE)) == 0) {
7592                                 dqi->dqi_bgrace = NOTIFY_GRACE_TIME;
7593                         } else {
7594                                 dqi->dqi_bgrace = str2sec(optarg);
7595                                 if (dqi->dqi_bgrace >= NOTIFY_GRACE_TIME) {
7596                                         fprintf(stderr,
7597                                                 "%s: bad block-grace: %s\n",
7598                                                 progname, optarg);
7599                                         return CMD_HELP;
7600                                 }
7601                         }
7602                         dqb->dqb_valid |= QIF_BTIME;
7603                         break;
7604                 case 'i':
7605                         if (strncmp(optarg, NOTIFY_GRACE,
7606                                     strlen(NOTIFY_GRACE)) == 0) {
7607                                 dqi->dqi_igrace = NOTIFY_GRACE_TIME;
7608                         } else {
7609                                 dqi->dqi_igrace = str2sec(optarg);
7610                                 if (dqi->dqi_igrace >= NOTIFY_GRACE_TIME) {
7611                                         fprintf(stderr,
7612                                                 "%s: bad inode-grace: %s\n",
7613                                                 progname, optarg);
7614                                         return CMD_HELP;
7615                                 }
7616                         }
7617                         dqb->dqb_valid |= QIF_ITIME;
7618                         break;
7619                 case 't': /* Yes, of course! */
7620                         break;
7621                 case LFS_POOL_OPT:
7622                         if (lfs_verify_poolarg(optarg))
7623                                 return -1;
7624                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7625                         qctl->qc_cmd  = LUSTRE_Q_SETINFOPOOL;
7626                         break;
7627                 /* getopt prints error message for us when opterr != 0 */
7628                 default:
7629                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7630                                 progname, argv[optind - 1]);
7631                         /* fallthrough */
7632                 case 'h':
7633                         return CMD_HELP;
7634                 }
7635         }
7636
7637         if (qctl->qc_type == ALLQUOTA) {
7638                 fprintf(stderr, "%s: neither -u, -g nor -p specified\n",
7639                         progname);
7640                 return CMD_HELP;
7641         }
7642
7643         if (optind != argc - 1) {
7644                 fprintf(stderr, "%s: unexpected parameter '%s'\n",
7645                         progname, argv[optind + 1]);
7646                 return CMD_HELP;
7647         }
7648
7649         mnt = argv[optind];
7650         rc = llapi_quotactl(mnt, qctl);
7651         if (rc) {
7652                 if (*obd_type)
7653                         fprintf(stderr, "%s %s ", obd_type,
7654                                 obd_uuid2str(&qctl->obd_uuid));
7655                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
7656                 return rc;
7657         }
7658
7659         return 0;
7660 }
7661
7662 #define BSLIMIT (1 << 0)
7663 #define BHLIMIT (1 << 1)
7664 #define ISLIMIT (1 << 2)
7665 #define IHLIMIT (1 << 3)
7666
7667 int lfs_setquota(int argc, char **argv)
7668 {
7669         int c, rc = 0;
7670         struct if_quotactl *qctl;
7671         char *mnt, *obd_type;
7672         struct obd_dqblk *dqb;
7673         struct option long_opts[] = {
7674         { .val = 'b',   .name = "block-softlimit",
7675                                                 .has_arg = required_argument },
7676         { .val = 'B',   .name = "block-hardlimit",
7677                                                 .has_arg = required_argument },
7678         { .val = 'd',   .name = "default",      .has_arg = no_argument },
7679         { .val = 'g',   .name = "group",        .has_arg = required_argument },
7680         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
7681         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7682         { .val = 'i',   .name = "inode-softlimit",
7683                                                 .has_arg = required_argument },
7684         { .val = 'I',   .name = "inode-hardlimit",
7685                                                 .has_arg = required_argument },
7686         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
7687         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
7688         { .val = 'u',   .name = "user",         .has_arg = required_argument },
7689         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
7690         { .val = LFS_POOL_OPT,
7691                         .name = "pool",         .has_arg = required_argument },
7692         { .name = NULL } };
7693         unsigned int limit_mask = 0;
7694         bool use_default = false;
7695         int qtype, qctl_len;
7696
7697         qctl_len = sizeof(*qctl) + LOV_MAXPOOLNAME + 1;
7698         qctl = malloc(qctl_len);
7699         if (!qctl)
7700                 return -ENOMEM;
7701
7702         memset(qctl, 0, qctl_len);
7703         obd_type = (char *)qctl->obd_type;
7704         dqb = &qctl->qc_dqblk;
7705
7706         if (has_times_option(argc, argv)) {
7707                 rc = lfs_setquota_times(argc, argv, qctl);
7708                 goto out;
7709         }
7710
7711         qctl->qc_cmd  = LUSTRE_Q_SETQUOTA;
7712         qctl->qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
7713                                    * so it can be used as a marker that qc_type
7714                                    * isn't reinitialized from command line
7715                                    */
7716
7717         while ((c = getopt_long(argc, argv, "b:B:dg:Ghi:I:p:Pu:U",
7718                 long_opts, NULL)) != -1) {
7719                 switch (c) {
7720                 case 'U':
7721                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7722                         qtype = USRQUOTA;
7723                         qctl->qc_id = 0;
7724                         goto quota_type_def;
7725                 case 'u':
7726                         qtype = USRQUOTA;
7727                         rc = name2uid(&qctl->qc_id, optarg);
7728                         goto quota_type;
7729                 case 'G':
7730                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7731                         qtype = GRPQUOTA;
7732                         qctl->qc_id = 0;
7733                         goto quota_type_def;
7734                 case 'g':
7735                         qtype = GRPQUOTA;
7736                         rc = name2gid(&qctl->qc_id, optarg);
7737                         goto quota_type;
7738                 case 'P':
7739                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7740                         qtype = PRJQUOTA;
7741                         qctl->qc_id = 0;
7742                         goto quota_type_def;
7743                 case 'p':
7744                         qtype = PRJQUOTA;
7745                         rc = name2projid(&qctl->qc_id, optarg);
7746 quota_type:
7747                         if (rc) {
7748                                 if (str2quotaid(&qctl->qc_id, optarg)) {
7749                                         fprintf(stderr,
7750                                                 "%s setquota: invalid id '%s'\n",
7751                                                 progname, optarg);
7752                                         rc = -1;
7753                                         goto out;
7754                                 }
7755                         }
7756
7757                         if (qctl->qc_id == 0) {
7758                                 fprintf(stderr,
7759                                         "%s setquota: can't set quota for root usr/group/project.\n",
7760                                         progname);
7761                                 rc = -1;
7762                                 goto out;
7763                         }
7764
7765 quota_type_def:
7766                         if (qctl->qc_type != ALLQUOTA) {
7767                                 fprintf(stderr,
7768                                         "%s setquota: only one of -u, -U, -g, -G, -p or -P may be specified\n",
7769                                         progname);
7770                                 rc = CMD_HELP;
7771                                 goto out;
7772                         }
7773                         qctl->qc_type = qtype;
7774                         break;
7775                 case 'd':
7776                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7777                         use_default = true;
7778                         break;
7779                 case 'b':
7780                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
7781                         dqb->dqb_bsoftlimit >>= 10;
7782                         limit_mask |= BSLIMIT;
7783                         if (dqb->dqb_bsoftlimit &&
7784                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
7785                                 fprintf(stderr,
7786                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7787                                         progname,
7788                                         (unsigned long long)dqb->dqb_bsoftlimit,
7789                                         progname);
7790                         break;
7791                 case 'B':
7792                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
7793                         dqb->dqb_bhardlimit >>= 10;
7794                         limit_mask |= BHLIMIT;
7795                         if (dqb->dqb_bhardlimit &&
7796                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
7797                                 fprintf(stderr,
7798                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
7799                                         "See '%s help setquota' or Lustre manual for details\n",
7800                                         progname,
7801                                         (unsigned long long)dqb->dqb_bhardlimit,
7802                                         progname);
7803                         break;
7804                 case 'i':
7805                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
7806                         limit_mask |= ISLIMIT;
7807                         if (dqb->dqb_isoftlimit &&
7808                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
7809                                 fprintf(stderr,
7810                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7811                                         progname,
7812                                         (unsigned long long)dqb->dqb_isoftlimit,
7813                                         progname);
7814                         break;
7815                 case 'I':
7816                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
7817                         limit_mask |= IHLIMIT;
7818                         if (dqb->dqb_ihardlimit &&
7819                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
7820                                 fprintf(stderr,
7821                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7822                                         progname,
7823                                         (unsigned long long)dqb->dqb_ihardlimit,
7824                                         progname);
7825                         break;
7826                 case LFS_POOL_OPT:
7827                         if (lfs_verify_poolarg(optarg)) {
7828                                 rc = -1;
7829                                 goto out;
7830                         }
7831                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7832                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_SETDEFAULT ?
7833                                                 LUSTRE_Q_SETDEFAULT_POOL :
7834                                                 LUSTRE_Q_SETQUOTAPOOL;
7835                         break;
7836                 default:
7837                         fprintf(stderr,
7838                                 "%s setquota: unrecognized option '%s'\n",
7839                                 progname, argv[optind - 1]);
7840                         /* fallthrough */
7841                 case 'h':
7842                         rc = CMD_HELP;
7843                         goto out;
7844                 }
7845         }
7846
7847         if (qctl->qc_type == ALLQUOTA) {
7848                 fprintf(stderr,
7849                         "%s setquota: either -u or -g must be specified\n",
7850                         progname);
7851                 rc = CMD_HELP;
7852                 goto out;
7853         }
7854
7855         if (!use_default && limit_mask == 0) {
7856                 fprintf(stderr,
7857                         "%s setquota: at least one limit must be specified\n",
7858                         progname);
7859                 rc = CMD_HELP;
7860                 goto out;
7861         }
7862
7863         if (use_default && limit_mask != 0) {
7864                 fprintf(stderr,
7865                         "%s setquota: limits should not be specified when using default quota\n",
7866                         progname);
7867                 rc = CMD_HELP;
7868                 goto out;
7869         }
7870
7871         if (use_default && qctl->qc_id == 0) {
7872                 fprintf(stderr,
7873                         "%s setquota: can not set default quota for root user/group/project\n",
7874                         progname);
7875                 rc = CMD_HELP;
7876                 goto out;
7877         }
7878
7879         if (optind != argc - 1) {
7880                 fprintf(stderr,
7881                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
7882                         progname, argv[optind]);
7883                 rc = CMD_HELP;
7884                 goto out;
7885         }
7886
7887         mnt = argv[optind];
7888
7889         if (use_default) {
7890                 dqb->dqb_bhardlimit = 0;
7891                 dqb->dqb_bsoftlimit = 0;
7892                 dqb->dqb_ihardlimit = 0;
7893                 dqb->dqb_isoftlimit = 0;
7894                 dqb->dqb_itime = 0;
7895                 dqb->dqb_btime = 0;
7896                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
7897                 /* do not set inode limits for Pool Quotas */
7898                 if (qctl->qc_cmd  == LUSTRE_Q_SETDEFAULT_POOL)
7899                         dqb->dqb_valid ^= QIF_ILIMITS | QIF_ITIME;
7900         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
7901                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
7902                 /* sigh, we can't just set blimits/ilimits */
7903                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
7904                                                .qc_type = qctl->qc_type,
7905                                                .qc_id   = qctl->qc_id};
7906
7907                 rc = llapi_quotactl(mnt, &tmp_qctl);
7908                 if (rc < 0)
7909                         goto out;
7910
7911                 if (!(limit_mask & BHLIMIT))
7912                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
7913                 if (!(limit_mask & BSLIMIT))
7914                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
7915                 if (!(limit_mask & IHLIMIT))
7916                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
7917                 if (!(limit_mask & ISLIMIT))
7918                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
7919
7920                 /* Keep grace times if we have got no softlimit arguments */
7921                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
7922                         dqb->dqb_valid |= QIF_BTIME;
7923                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
7924                 }
7925
7926                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
7927                         dqb->dqb_valid |= QIF_ITIME;
7928                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
7929                 }
7930         }
7931
7932         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
7933         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
7934
7935         rc = llapi_quotactl(mnt, qctl);
7936         if (rc) {
7937                 if (*obd_type)
7938                         fprintf(stderr,
7939                                 "%s setquota: cannot quotactl '%s' '%s': %s",
7940                                 progname, obd_type,
7941                                 obd_uuid2str(&qctl->obd_uuid), strerror(-rc));
7942         }
7943 out:
7944         free(qctl);
7945         return rc;
7946 }
7947
7948 /* Converts seconds value into format string
7949  * result is returned in buf
7950  * Notes:
7951  *        1. result is in descenting order: 1w2d3h4m5s
7952  *        2. zero fields are not filled (except for p. 3): 5d1s
7953  *        3. zero seconds value is presented as "0s"
7954  */
7955 static char *__sec2str(time_t seconds, char *buf)
7956 {
7957         const char spec[] = "smhdw";
7958         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7959         unsigned long c;
7960         char *tail = buf;
7961         int i;
7962
7963         for (i = ARRAY_SIZE(mult) - 1 ; i >= 0; i--) {
7964                 c = seconds / mult[i];
7965
7966                 if (c > 0 || (i == 0 && buf == tail))
7967                         tail += scnprintf(tail, 40-(tail-buf), "%lu%c", c,
7968                                           spec[i]);
7969
7970                 seconds %= mult[i];
7971         }
7972
7973         return tail;
7974 }
7975
7976 static void sec2str(time_t seconds, char *buf, int rc)
7977 {
7978         char *tail = buf;
7979
7980         if (rc)
7981                 *tail++ = '[';
7982
7983         tail = __sec2str(seconds, tail);
7984
7985         if (rc && tail - buf < 39) {
7986                 *tail++ = ']';
7987                 *tail++ = 0;
7988         }
7989 }
7990
7991 static void diff2str(time_t seconds, char *buf, time_t now)
7992 {
7993         buf[0] = 0;
7994         if (!seconds)
7995                 return;
7996         if (seconds <= now) {
7997                 strcpy(buf, "none");
7998                 return;
7999         }
8000         __sec2str(seconds - now, buf);
8001 }
8002
8003 static void print_quota_title(char *name, struct if_quotactl *qctl,
8004                               bool human_readable, bool show_default)
8005 {
8006         if (show_default) {
8007                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
8008                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
8009                        "Filesystem", "bquota", "blimit", "bgrace",
8010                        "iquota", "ilimit", "igrace");
8011         } else {
8012                 printf("Disk quotas for %s %s (%cid %u):\n",
8013                        qtype_name(qctl->qc_type), name,
8014                        *qtype_name(qctl->qc_type), qctl->qc_id);
8015                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
8016                        "Filesystem", human_readable ? "used" : "kbytes",
8017                        "quota", "limit", "grace",
8018                        "files", "quota", "limit", "grace");
8019         }
8020 }
8021
8022 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
8023 {
8024         if (!h) {
8025                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
8026         } else {
8027                 if (num >> 40)
8028                         snprintf(buf, buflen, "%5.4gP",
8029                                  (double)num / ((__u64)1 << 40));
8030                 else if (num >> 30)
8031                         snprintf(buf, buflen, "%5.4gT",
8032                                  (double)num / (1 << 30));
8033                 else if (num >> 20)
8034                         snprintf(buf, buflen, "%5.4gG",
8035                                  (double)num / (1 << 20));
8036                 else if (num >> 10)
8037                         snprintf(buf, buflen, "%5.4gM",
8038                                  (double)num / (1 << 10));
8039                 else
8040                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
8041         }
8042 }
8043
8044 #define STRBUF_LEN      24
8045 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
8046                         int rc, bool h, bool show_default)
8047 {
8048         time_t now;
8049
8050         time(&now);
8051
8052         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
8053             qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
8054             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT ||
8055             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT_POOL) {
8056                 int bover = 0, iover = 0;
8057                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
8058                 char numbuf[3][STRBUF_LEN + 2]; /* 2 for brackets or wildcard */
8059                 char timebuf[40];
8060                 char strbuf[STRBUF_LEN];
8061
8062                 if (dqb->dqb_bhardlimit &&
8063                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
8064                         bover = 1;
8065                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
8066                         if (dqb->dqb_btime > now)
8067                                 bover = 2;
8068                         else
8069                                 bover = 3;
8070                 }
8071
8072                 if (dqb->dqb_ihardlimit &&
8073                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
8074                         iover = 1;
8075                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
8076                         if (dqb->dqb_itime > now)
8077                                 iover = 2;
8078                         else
8079                                 iover = 3;
8080                 }
8081
8082                 if (strlen(mnt) > 15)
8083                         printf("%s\n%15s", mnt, "");
8084                 else
8085                         printf("%15s", mnt);
8086
8087                 if (bover)
8088                         diff2str(dqb->dqb_btime, timebuf, now);
8089                 else if (show_default)
8090                         snprintf(timebuf, sizeof(timebuf), "%llu",
8091                                  (unsigned long long)dqb->dqb_btime);
8092
8093                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
8094                            strbuf, sizeof(strbuf), h);
8095                 if (rc == -EREMOTEIO)
8096                         sprintf(numbuf[0], "%s*", strbuf);
8097                 else
8098                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
8099                                 "%s" : "[%s]", strbuf);
8100
8101                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
8102                 if (type == QC_GENERAL)
8103                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
8104                                 "%s" : "[%s]", strbuf);
8105                 else
8106                         sprintf(numbuf[1], "%s", "-");
8107
8108                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
8109                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
8110                         "%s" : "[%s]", strbuf);
8111
8112                 if (show_default)
8113                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
8114                 else
8115                         printf(" %7s%c %6s %7s %7s",
8116                                numbuf[0], bover ? '*' : ' ', numbuf[1],
8117                                numbuf[2], bover > 1 ? timebuf : "-");
8118
8119                 if (iover)
8120                         diff2str(dqb->dqb_itime, timebuf, now);
8121                 else if (show_default)
8122                         snprintf(timebuf, sizeof(timebuf), "%llu",
8123                                  (unsigned long long)dqb->dqb_itime);
8124
8125                 snprintf(numbuf[0], sizeof(numbuf),
8126                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
8127                          (uintmax_t)dqb->dqb_curinodes);
8128
8129                 if (type == QC_GENERAL)
8130                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
8131                                 "%ju" : "[%ju]",
8132                                 (uintmax_t)dqb->dqb_isoftlimit);
8133                 else
8134                         sprintf(numbuf[1], "%s", "-");
8135
8136                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
8137                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
8138
8139                 if (show_default)
8140                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
8141                 else if (type != QC_OSTIDX)
8142                         printf(" %7s%c %6s %7s %7s",
8143                                numbuf[0], iover ? '*' : ' ', numbuf[1],
8144                                numbuf[2], iover > 1 ? timebuf : "-");
8145                 else
8146                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
8147                 printf("\n");
8148         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO || LUSTRE_Q_GETINFOPOOL ||
8149                    qctl->qc_cmd == Q_GETOINFO) {
8150                 char bgtimebuf[40];
8151                 char igtimebuf[40];
8152
8153                 if (qctl->qc_dqinfo.dqi_bgrace == NOTIFY_GRACE_TIME)
8154                         strncpy(bgtimebuf, NOTIFY_GRACE, 40);
8155                 else
8156                         sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
8157                 if (qctl->qc_dqinfo.dqi_igrace == NOTIFY_GRACE_TIME)
8158                         strncpy(igtimebuf, NOTIFY_GRACE, 40);
8159                 else
8160                         sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
8161
8162                 printf("Block grace time: %s; Inode grace time: %s\n",
8163                        bgtimebuf, igtimebuf);
8164         }
8165 }
8166
8167 static int tgt_name2index(const char *tgtname, unsigned int *idx)
8168 {
8169         char *dash, *endp;
8170
8171         /* format is "lustre-OST0001" */
8172         dash = memchr(tgtname, '-', LUSTRE_MAXFSNAME + 1);
8173         if (!dash) {
8174                 fprintf(stderr, "wrong tgtname format '%s'\n", tgtname);
8175                 return -EINVAL;
8176         }
8177         dash += 4;
8178
8179         *idx = strtoul(dash, &endp, 16);
8180         if (*idx > 0xffff) {
8181                 fprintf(stderr, "wrong index %s\n", tgtname);
8182                 return -ERANGE;
8183         }
8184
8185         return 0;
8186 }
8187
8188 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
8189                            bool h, __u64 *total)
8190 {
8191         int rc = 0, rc1 = 0, count = 0, i = 0;
8192         char **list = NULL, *buffer = NULL;
8193         __u32 valid = qctl->qc_valid;
8194
8195         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL && is_mdt)
8196                 return 0;
8197
8198         /* Is it correct for the case OST0000, OST0002, OST0003 -
8199          * we will ask OST0001 that is absent and won't ask OST0003? */
8200         rc = llapi_get_obd_count(mnt, &count, is_mdt);
8201         if (rc) {
8202                 fprintf(stderr, "can not get %s count: %s\n",
8203                         is_mdt ? "mdt" : "ost", strerror(-rc));
8204                 return rc;
8205         }
8206
8207         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8208                 char fname[PATH_MAX];
8209                 char fsname[LUSTRE_MAXFSNAME + 1];
8210                 int bufsize = sizeof(struct obd_uuid) * count;
8211
8212                 rc = llapi_search_fsname(mnt, fsname);
8213                 if (rc) {
8214                         fprintf(stderr, "cannot get fsname for mountpoint %s\n",
8215                                 mnt);
8216                         goto out;
8217                 }
8218                 buffer = malloc(bufsize + sizeof(*list) * count);
8219                 if (!buffer)
8220                         return -ENOMEM;
8221                 list = (char **)(buffer + bufsize);
8222                 snprintf(fname, PATH_MAX, "%s.%s", fsname, qctl->qc_poolname);
8223                 count = llapi_get_poolmembers(fname, list, count,
8224                                               buffer, bufsize);
8225                 if (count <= 0)
8226                         goto out;
8227         }
8228
8229         for (i = 0; i < count; i++) {
8230                 if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8231                         unsigned int index;
8232
8233                         if (tgt_name2index(list[i], &index))
8234                                 continue;
8235                         qctl->qc_idx = index;
8236                 } else {
8237                         qctl->qc_idx = i;
8238                 }
8239
8240                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
8241                 rc = llapi_quotactl(mnt, qctl);
8242                 if (rc) {
8243                         /* It is remote client case. */
8244                         if (rc == -EOPNOTSUPP) {
8245                                 rc = 0;
8246                                 goto out;
8247                         }
8248
8249                         if (!rc1)
8250                                 rc1 = rc;
8251                         fprintf(stderr, "quotactl %s%d failed.\n",
8252                                 is_mdt ? "mdt" : "ost", qctl->qc_idx);
8253                         continue;
8254                 }
8255
8256                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
8257                             qctl->qc_valid, 0, h, false);
8258                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
8259                                    qctl->qc_dqblk.dqb_bhardlimit;
8260         }
8261 out:
8262         if (buffer)
8263                 free(buffer);
8264         qctl->qc_valid = valid;
8265         return rc ? : rc1;
8266 }
8267
8268 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
8269                            int verbose, int quiet, bool human_readable,
8270                            bool show_default)
8271 {
8272         int rc1 = 0, rc2 = 0, rc3 = 0;
8273         char *obd_type = (char *)qctl->obd_type;
8274         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
8275         __u64 total_ialloc = 0, total_balloc = 0;
8276         bool use_default_for_blk = false;
8277         bool use_default_for_file = false;
8278         int inacc;
8279
8280         rc1 = llapi_quotactl(mnt, qctl);
8281         if (rc1 < 0) {
8282                 switch (rc1) {
8283                 case -ESRCH:
8284                         fprintf(stderr, "%s quotas are not enabled.\n",
8285                                 qtype_name(qctl->qc_type));
8286                         goto out;
8287                 case -EPERM:
8288                         fprintf(stderr, "Permission denied.\n");
8289                 case -ENODEV:
8290                 case -ENOENT:
8291                         /* We already got error message. */
8292                         goto out;
8293                 default:
8294                         fprintf(stderr, "Unexpected quotactl error: %s\n",
8295                                 strerror(-rc1));
8296                 }
8297         }
8298
8299         if (!show_default && qctl->qc_id == 0) {
8300                 qctl->qc_dqblk.dqb_bhardlimit = 0;
8301                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
8302                 qctl->qc_dqblk.dqb_ihardlimit = 0;
8303                 qctl->qc_dqblk.dqb_isoftlimit = 0;
8304                 qctl->qc_dqblk.dqb_btime = 0;
8305                 qctl->qc_dqblk.dqb_itime = 0;
8306                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
8307         }
8308
8309         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
8310             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
8311                 use_default_for_blk = true;
8312                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
8313         }
8314
8315         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
8316             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
8317                 use_default_for_file = true;
8318                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
8319         }
8320
8321         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8322              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
8323              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT_POOL ||
8324              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
8325                 print_quota_title(name, qctl, human_readable, show_default);
8326
8327         if (rc1 && *obd_type)
8328                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
8329
8330         if (qctl->qc_valid != QC_GENERAL)
8331                 mnt = "";
8332
8333         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8334                  qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8335                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
8336                  (QIF_LIMITS|QIF_USAGE));
8337
8338         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
8339
8340         if (!show_default && verbose &&
8341             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
8342             qctl->qc_cmd != LUSTRE_Q_GETINFOPOOL) {
8343                 char strbuf[STRBUF_LEN];
8344
8345                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
8346                                       &total_ialloc);
8347                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
8348                                       &total_balloc);
8349                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
8350                            human_readable);
8351                 printf("Total allocated inode limit: %ju, total allocated block limit: %s\n",
8352                        (uintmax_t)total_ialloc, strbuf);
8353         }
8354
8355         if (use_default_for_blk)
8356                 printf("%cid %u is using default block quota setting\n",
8357                        *qtype_name(qctl->qc_type), qctl->qc_id);
8358
8359         if (use_default_for_file)
8360                 printf("%cid %u is using default file quota setting\n",
8361                        *qtype_name(qctl->qc_type), qctl->qc_id);
8362
8363         if (rc1 || rc2 || rc3 || inacc)
8364                 printf("Some errors happened when getting quota info. Some devices may be not working or deactivated. The data in \"[]\" is inaccurate.\n");
8365 out:
8366         if (rc1)
8367                 return rc1;
8368         if (rc2)
8369                 return rc2;
8370         if (rc3)
8371                 return rc3;
8372         if (inacc)
8373                 return -EIO;
8374
8375         return 0;
8376 }
8377
8378 static int lfs_project(int argc, char **argv)
8379 {
8380         int ret = 0, err = 0, c, i;
8381         struct project_handle_control phc = { 0 };
8382         enum lfs_project_ops_t op;
8383
8384         phc.newline = true;
8385         phc.assign_projid = false;
8386         /* default action */
8387         op = LFS_PROJECT_LIST;
8388
8389         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
8390                 switch (c) {
8391                 case 'c':
8392                         if (op != LFS_PROJECT_LIST) {
8393                                 fprintf(stderr,
8394                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8395                                         progname);
8396                                 return CMD_HELP;
8397                         }
8398
8399                         op = LFS_PROJECT_CHECK;
8400                         break;
8401                 case 'C':
8402                         if (op != LFS_PROJECT_LIST) {
8403                                 fprintf(stderr,
8404                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8405                                         progname);
8406                                 return CMD_HELP;
8407                         }
8408
8409                         op = LFS_PROJECT_CLEAR;
8410                         break;
8411                 case 's':
8412                         if (op != LFS_PROJECT_LIST) {
8413                                 fprintf(stderr,
8414                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8415                                         progname);
8416                                 return CMD_HELP;
8417                         }
8418
8419                         phc.set_inherit = true;
8420                         op = LFS_PROJECT_SET;
8421                         break;
8422                 case 'd':
8423                         phc.dironly = true;
8424                         break;
8425                 case 'k':
8426                         phc.keep_projid = true;
8427                         break;
8428                 case 'r':
8429                         phc.recursive = true;
8430                         break;
8431                 case 'p':
8432                         if (str2quotaid(&phc.projid, optarg)) {
8433                                 fprintf(stderr,
8434                                         "Invalid project ID: %s\n",
8435                                         optarg);
8436                                 return CMD_HELP;
8437                         }
8438
8439                         phc.assign_projid = true;
8440
8441                         break;
8442                 case '0':
8443                         phc.newline = false;
8444                         break;
8445                 default:
8446                         fprintf(stderr, "%s: invalid option '%c'\n",
8447                                 progname, optopt);
8448                         return CMD_HELP;
8449                 }
8450         }
8451
8452         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
8453                 op = LFS_PROJECT_SET;
8454                 phc.set_projid = true;
8455         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
8456                 phc.set_projid = true;
8457         }
8458
8459         switch (op) {
8460         case LFS_PROJECT_CHECK:
8461                 if (phc.keep_projid) {
8462                         fprintf(stderr,
8463                                 "%s: '-k' is useless together with '-c'\n",
8464                                 progname);
8465                         return CMD_HELP;
8466                 }
8467                 break;
8468         case LFS_PROJECT_CLEAR:
8469                 if (!phc.newline) {
8470                         fprintf(stderr,
8471                                 "%s: '-0' is useless together with '-C'\n",
8472                                 progname);
8473                         return CMD_HELP;
8474                 }
8475                 if (phc.assign_projid) {
8476                         fprintf(stderr,
8477                                 "%s: '-p' is useless together with '-C'\n",
8478                                 progname);
8479                         return CMD_HELP;
8480                 }
8481                 break;
8482         case LFS_PROJECT_SET:
8483                 if (!phc.newline) {
8484                         fprintf(stderr,
8485                                 "%s: '-0' is useless together with '-s'\n",
8486                                 progname);
8487                         return CMD_HELP;
8488                 }
8489                 if (phc.keep_projid) {
8490                         fprintf(stderr,
8491                                 "%s: '-k' is useless together with '-s'\n",
8492                                 progname);
8493                         return CMD_HELP;
8494                 }
8495                 break;
8496         default:
8497                 if (!phc.newline) {
8498                         fprintf(stderr,
8499                                 "%s: '-0' is useless for list operations\n",
8500                                 progname);
8501                         return CMD_HELP;
8502                 }
8503                 break;
8504         }
8505
8506         argv += optind;
8507         argc -= optind;
8508         if (argc == 0) {
8509                 fprintf(stderr, "%s: missing file or directory target(s)\n",
8510                         progname);
8511                 return CMD_HELP;
8512         }
8513
8514         for (i = 0; i < argc; i++) {
8515                 switch (op) {
8516                 case LFS_PROJECT_CHECK:
8517                         err = lfs_project_check(argv[i], &phc);
8518                         break;
8519                 case LFS_PROJECT_LIST:
8520                         err = lfs_project_list(argv[i], &phc);
8521                         break;
8522                 case LFS_PROJECT_CLEAR:
8523                         err = lfs_project_clear(argv[i], &phc);
8524                         break;
8525                 case LFS_PROJECT_SET:
8526                         err = lfs_project_set(argv[i], &phc);
8527                         break;
8528                 default:
8529                         break;
8530                 }
8531                 if (err && !ret)
8532                         ret = err;
8533         }
8534
8535         return ret;
8536 }
8537
8538 static int lfs_quota(int argc, char **argv)
8539 {
8540         int c;
8541         char *mnt, *name = NULL;
8542         struct if_quotactl *qctl;
8543         char *obd_uuid;
8544         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
8545         __u32 valid = QC_GENERAL, idx = 0;
8546         bool human_readable = false;
8547         bool show_default = false;
8548         int qtype;
8549         bool show_pools = false;
8550         struct option long_opts[] = {
8551         { .val = LFS_POOL_OPT, .name = "pool", .has_arg = optional_argument },
8552         { .name = NULL } };
8553         char **poollist = NULL;
8554         char *buf = NULL;
8555         int poolcount, i;
8556
8557         qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
8558         if (!qctl)
8559                 return -ENOMEM;
8560
8561         qctl->qc_cmd = LUSTRE_Q_GETQUOTA;
8562         qctl->qc_type = ALLQUOTA;
8563         obd_uuid = (char *)qctl->obd_uuid.uuid;
8564
8565         while ((c = getopt_long(argc, argv, "gGi:I:o:pPqtuUvh",
8566                 long_opts, NULL)) != -1) {
8567                 switch (c) {
8568                 case 'U':
8569                         show_default = true;
8570                 case 'u':
8571                         qtype = USRQUOTA;
8572                         goto quota_type;
8573                 case 'G':
8574                         show_default = true;
8575                 case 'g':
8576                         qtype = GRPQUOTA;
8577                         goto quota_type;
8578                 case 'P':
8579                         show_default = true;
8580                 case 'p':
8581                         qtype = PRJQUOTA;
8582 quota_type:
8583                         if (qctl->qc_type != ALLQUOTA) {
8584                                 fprintf(stderr,
8585                                         "%s quota: only one of -u, -g, or -p may be specified\n",
8586                                         progname);
8587                                 rc = CMD_HELP;
8588                                 goto out;
8589                         }
8590                         qctl->qc_type = qtype;
8591                         break;
8592                 case 't':
8593                         qctl->qc_cmd = LUSTRE_Q_GETINFO;
8594                         break;
8595                 case 'o':
8596                         valid = qctl->qc_valid = QC_UUID;
8597                         snprintf(obd_uuid, sizeof(*obd_uuid), "%s", optarg);
8598                         break;
8599                 case 'i':
8600                         valid = qctl->qc_valid = QC_MDTIDX;
8601                         idx = qctl->qc_idx = atoi(optarg);
8602                         if (idx == 0 && *optarg != '0') {
8603                                 fprintf(stderr,
8604                                         "%s quota: invalid MDT index '%s'\n",
8605                                         progname, optarg);
8606                                 rc = CMD_HELP;
8607                                 goto out;
8608                         }
8609                         break;
8610                 case 'I':
8611                         valid = qctl->qc_valid = QC_OSTIDX;
8612                         idx = qctl->qc_idx = atoi(optarg);
8613                         if (idx == 0 && *optarg != '0') {
8614                                 fprintf(stderr,
8615                                         "%s quota: invalid OST index '%s'\n",
8616                                         progname, optarg);
8617                                 rc = CMD_HELP;
8618                                 goto out;
8619                         }
8620                         break;
8621                 case 'v':
8622                         verbose = 1;
8623                         break;
8624                 case 'q':
8625                         quiet = 1;
8626                         break;
8627                 case 'h':
8628                         human_readable = true;
8629                         break;
8630                 case LFS_POOL_OPT:
8631                         if ((!optarg) && (argv[optind] != NULL) &&
8632                                 (argv[optind][0] != '-') &&
8633                                 (argv[optind][0] != '/')) {
8634                                 optarg = argv[optind++];
8635                                 if (lfs_verify_poolarg(optarg)) {
8636                                         rc = -EINVAL;
8637                                         goto out;
8638                                 }
8639                                 strncpy(qctl->qc_poolname, optarg,
8640                                         LOV_MAXPOOLNAME);
8641                                 if (qctl->qc_cmd == LUSTRE_Q_GETINFO)
8642                                         qctl->qc_cmd = LUSTRE_Q_GETINFOPOOL;
8643                                 else
8644                                         qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
8645                                 break;
8646                         }
8647
8648                         /* optarg is NULL */
8649                         show_pools = true;
8650                         qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
8651                         break;
8652                 default:
8653                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
8654                                 progname, argv[optind - 1]);
8655                         rc = CMD_HELP;
8656                         goto out;
8657                 }
8658         }
8659
8660         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
8661         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8662              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8663              qctl->qc_type == ALLQUOTA &&
8664              optind == argc - 1 && !show_default) {
8665                 qctl->qc_idx = idx;
8666
8667                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
8668                         qctl->qc_type = qtype;
8669                         qctl->qc_valid = valid;
8670                         if (qtype == USRQUOTA) {
8671                                 qctl->qc_id = geteuid();
8672                                 rc = uid2name(&name, qctl->qc_id);
8673                         } else {
8674                                 qctl->qc_id = getegid();
8675                                 rc = gid2name(&name, qctl->qc_id);
8676                                 memset(&qctl->qc_dqblk, 0,
8677                                        sizeof(qctl->qc_dqblk));
8678                         }
8679                         if (rc)
8680                                 name = "<unknown>";
8681                         mnt = argv[optind];
8682                         rc1 = get_print_quota(mnt, name, qctl, verbose, quiet,
8683                                               human_readable, show_default);
8684                         if (rc1 && !rc)
8685                                 rc = rc1;
8686                 }
8687                 goto out;
8688         /* lfs quota -u username /path/to/lustre/mount */
8689         } else if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8690                    qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8691                 /* options should be followed by u/g-name and mntpoint */
8692                 if ((!show_default && optind + 2 != argc) ||
8693                     (show_default && optind + 1 != argc) ||
8694                     qctl->qc_type == ALLQUOTA) {
8695                         fprintf(stderr,
8696                                 "%s quota: name and mount point must be specified\n",
8697                                 progname);
8698                         rc = CMD_HELP;
8699                         goto out;
8700                 }
8701
8702                 if (!show_default) {
8703                         name = argv[optind++];
8704                         switch (qctl->qc_type) {
8705                         case USRQUOTA:
8706                                 rc = name2uid(&qctl->qc_id, name);
8707                                 break;
8708                         case GRPQUOTA:
8709                                 rc = name2gid(&qctl->qc_id, name);
8710                                 break;
8711                         case PRJQUOTA:
8712                                 rc = name2projid(&qctl->qc_id, name);
8713                                 break;
8714                         default:
8715                                 rc = -ENOTSUP;
8716                                 break;
8717                         }
8718                 } else {
8719                         qctl->qc_valid = QC_GENERAL;
8720                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ?
8721                                         LUSTRE_Q_GETDEFAULT_POOL :
8722                                         LUSTRE_Q_GETDEFAULT;
8723                         qctl->qc_id = 0;
8724                 }
8725
8726                 if (rc) {
8727                         if (str2quotaid(&qctl->qc_id, name)) {
8728                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
8729                                         progname, name);
8730                                 rc = CMD_HELP;
8731                                 goto out;
8732                         }
8733                 }
8734         } else if (optind + 1 != argc || qctl->qc_type == ALLQUOTA) {
8735                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
8736                         progname);
8737                 rc = CMD_HELP;
8738                 goto out;
8739         }
8740
8741         mnt = argv[optind];
8742         if (show_pools) {
8743                 char *p;
8744
8745                 i = 0;
8746                 rc = llapi_get_poolbuf(mnt, &buf, &poollist, &poolcount);
8747                 if (rc)
8748                         goto out;
8749
8750                 for (i = 0; i < poolcount; i++) {
8751                         p = memchr(poollist[i], '.', MAXNAMLEN);
8752                         if (!p) {
8753                                 fprintf(stderr, "bad string format %.*s\n",
8754                                         MAXNAMLEN, poollist[i]);
8755                                 rc = -EINVAL;
8756                                 goto out;
8757                         }
8758                         p++;
8759                         printf("Quotas for pool: %s\n", p);
8760                         strncpy(qctl->qc_poolname, p, LOV_MAXPOOLNAME);
8761                         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8762                                              human_readable, show_default);
8763                         if (rc)
8764                                 break;
8765                 }
8766                 goto out;
8767         }
8768
8769         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8770                              human_readable, show_default);
8771 out:
8772         free(buf);
8773         free(qctl);
8774         return rc;
8775 }
8776 #endif /* HAVE_SYS_QUOTA_H! */
8777
8778 static int flushctx_ioctl(char *mp)
8779 {
8780         int fd, rc;
8781
8782         fd = open(mp, O_RDONLY);
8783         if (fd == -1) {
8784                 fprintf(stderr, "flushctx: error open %s: %s\n",
8785                         mp, strerror(errno));
8786                 return -1;
8787         }
8788
8789         rc = ioctl(fd, LL_IOC_FLUSHCTX);
8790         if (rc == -1)
8791                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
8792                         mp, strerror(errno));
8793
8794         close(fd);
8795         return rc;
8796 }
8797
8798 static int lfs_flushctx(int argc, char **argv)
8799 {
8800         int     kdestroy = 0, reap = 0, c;
8801         char    mntdir[PATH_MAX] = {'\0'};
8802         int     index = 0;
8803         int     rc = 0;
8804
8805         while ((c = getopt(argc, argv, "kr")) != -1) {
8806                 switch (c) {
8807                 case 'k':
8808                         kdestroy = 1;
8809                         break;
8810                 case 'r':
8811                         reap = 1;
8812                         break;
8813                 default:
8814                         fprintf(stderr,
8815                                 "error: %s: option '-%c' unrecognized\n",
8816                                 argv[0], c);
8817                         return CMD_HELP;
8818                 }
8819         }
8820
8821         if (kdestroy) {
8822                 rc = system("kdestroy > /dev/null");
8823                 if (rc) {
8824                         rc = WEXITSTATUS(rc);
8825                         fprintf(stderr,
8826                                 "error destroying tickets: %d, continuing\n",
8827                                 rc);
8828                 }
8829         }
8830
8831         if (optind >= argc) {
8832                 /* flush for all mounted lustre fs. */
8833                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
8834                         /* Check if we have a mount point */
8835                         if (mntdir[0] == '\0')
8836                                 continue;
8837
8838                         if (flushctx_ioctl(mntdir))
8839                                 rc = -1;
8840
8841                         mntdir[0] = '\0'; /* avoid matching in next loop */
8842                 }
8843         } else {
8844                 /* flush fs as specified */
8845                 while (optind < argc) {
8846                         if (flushctx_ioctl(argv[optind++]))
8847                                 rc = -1;
8848                 }
8849         }
8850
8851         if (reap) {
8852                 rc = system("keyctl reap > /dev/null");
8853                 if (rc != 0) {
8854                         rc = WEXITSTATUS(rc);
8855                         fprintf(stderr, "error reaping keyring: %d\n", rc);
8856                 }
8857         }
8858
8859         return rc;
8860 }
8861
8862 static int lfs_changelog(int argc, char **argv)
8863 {
8864         void *changelog_priv;
8865         struct changelog_rec *rec;
8866         long long startrec = 0, endrec = 0;
8867         char *mdd;
8868         struct option long_opts[] = {
8869                 { .val = 'f', .name = "follow", .has_arg = no_argument },
8870                 { .name = NULL } };
8871         char short_opts[] = "f";
8872         int rc, follow = 0;
8873
8874         while ((rc = getopt_long(argc, argv, short_opts,
8875                 long_opts, NULL)) != -1) {
8876                 switch (rc) {
8877                 case 'f':
8878                         follow++;
8879                         break;
8880                 default:
8881                         fprintf(stderr,
8882                                 "%s changelog: unrecognized option '%s'\n",
8883                                 progname, argv[optind - 1]);
8884                         return CMD_HELP;
8885                 }
8886         }
8887         if (optind >= argc) {
8888                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
8889                         progname);
8890                 return CMD_HELP;
8891         }
8892
8893         mdd = argv[optind++];
8894         if (argc > optind) {
8895                 errno = 0;
8896                 startrec = strtoll(argv[optind++], NULL, 10);
8897                 if (errno != 0 || startrec < 0) {
8898                         fprintf(stderr,
8899                                 "%s changelog: bad startrec\n",
8900                                 progname);
8901                         return CMD_HELP;
8902                 }
8903         }
8904
8905         if (argc > optind) {
8906                 errno = 0;
8907                 endrec = strtoll(argv[optind++], NULL, 10);
8908                 if (errno != 0 || endrec < 0) {
8909                         fprintf(stderr,
8910                                 "%s changelog: bad endrec\n",
8911                                 progname);
8912                         return CMD_HELP;
8913                 }
8914         }
8915
8916         rc = llapi_changelog_start(&changelog_priv,
8917                                    CHANGELOG_FLAG_BLOCK |
8918                                    CHANGELOG_FLAG_JOBID |
8919                                    CHANGELOG_FLAG_EXTRA_FLAGS |
8920                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
8921                                    mdd, startrec);
8922         if (rc < 0) {
8923                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
8924                         progname, strerror(errno = -rc));
8925                 return rc;
8926         }
8927
8928         rc = llapi_changelog_set_xflags(changelog_priv,
8929                                         CHANGELOG_EXTRA_FLAG_UIDGID |
8930                                         CHANGELOG_EXTRA_FLAG_NID |
8931                                         CHANGELOG_EXTRA_FLAG_OMODE |
8932                                         CHANGELOG_EXTRA_FLAG_XATTR);
8933         if (rc < 0) {
8934                 fprintf(stderr,
8935                         "%s changelog: cannot set xflags for changelog: %s\n",
8936                         progname, strerror(errno = -rc));
8937                 return rc;
8938         }
8939
8940         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
8941                 time_t secs;
8942                 struct tm ts;
8943
8944                 if (endrec && rec->cr_index > endrec) {
8945                         llapi_changelog_free(&rec);
8946                         break;
8947                 }
8948                 if (rec->cr_index < startrec) {
8949                         llapi_changelog_free(&rec);
8950                         continue;
8951                 }
8952
8953                 secs = rec->cr_time >> 30;
8954                 gmtime_r(&secs, &ts);
8955                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
8956                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
8957                        changelog_type2str(rec->cr_type),
8958                        ts.tm_hour, ts.tm_min, ts.tm_sec,
8959                        (int)(rec->cr_time & ((1 << 30) - 1)),
8960                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
8961                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
8962
8963                 if (rec->cr_flags & CLF_JOBID) {
8964                         struct changelog_ext_jobid *jid =
8965                                 changelog_rec_jobid(rec);
8966
8967                         if (jid->cr_jobid[0] != '\0')
8968                                 printf(" j=%s", jid->cr_jobid);
8969                 }
8970
8971                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
8972                         struct changelog_ext_extra_flags *ef =
8973                                 changelog_rec_extra_flags(rec);
8974
8975                         printf(" ef=0x%llx",
8976                                (unsigned long long)ef->cr_extra_flags);
8977
8978                         if (ef->cr_extra_flags & CLFE_UIDGID) {
8979                                 struct changelog_ext_uidgid *uidgid =
8980                                         changelog_rec_uidgid(rec);
8981
8982                                 printf(" u=%llu:%llu",
8983                                        (unsigned long long)uidgid->cr_uid,
8984                                        (unsigned long long)uidgid->cr_gid);
8985                         }
8986                         if (ef->cr_extra_flags & CLFE_NID) {
8987                                 struct changelog_ext_nid *nid =
8988                                         changelog_rec_nid(rec);
8989
8990                                 printf(" nid=%s",
8991                                        libcfs_nid2str(nid->cr_nid));
8992                         }
8993
8994                         if (ef->cr_extra_flags & CLFE_OPEN) {
8995                                 struct changelog_ext_openmode *omd =
8996                                         changelog_rec_openmode(rec);
8997                                 char mode[] = "---";
8998
8999                                 /* exec mode must be exclusive */
9000                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
9001                                         mode[2] = 'x';
9002                                 } else {
9003                                         if (omd->cr_openflags & MDS_FMODE_READ)
9004                                                 mode[0] = 'r';
9005                                         if (omd->cr_openflags &
9006                                             (MDS_FMODE_WRITE |
9007                                              MDS_OPEN_TRUNC |
9008                                              MDS_OPEN_APPEND))
9009                                                 mode[1] = 'w';
9010                                 }
9011
9012                                 if (strcmp(mode, "---") != 0)
9013                                         printf(" m=%s", mode);
9014                         }
9015
9016                         if (ef->cr_extra_flags & CLFE_XATTR) {
9017                                 struct changelog_ext_xattr *xattr =
9018                                         changelog_rec_xattr(rec);
9019
9020                                 if (xattr->cr_xattr[0] != '\0')
9021                                         printf(" x=%s", xattr->cr_xattr);
9022                         }
9023                 }
9024
9025                 if (!fid_is_zero(&rec->cr_pfid))
9026                         printf(" p="DFID, PFID(&rec->cr_pfid));
9027                 if (rec->cr_namelen)
9028                         printf(" %.*s", rec->cr_namelen,
9029                                changelog_rec_name(rec));
9030
9031                 if (rec->cr_flags & CLF_RENAME) {
9032                         struct changelog_ext_rename *rnm =
9033                                 changelog_rec_rename(rec);
9034
9035                         if (!fid_is_zero(&rnm->cr_sfid))
9036                                 printf(" s="DFID" sp="DFID" %.*s",
9037                                        PFID(&rnm->cr_sfid),
9038                                        PFID(&rnm->cr_spfid),
9039                                        (int)changelog_rec_snamelen(rec),
9040                                        changelog_rec_sname(rec));
9041                 }
9042                 printf("\n");
9043
9044                 llapi_changelog_free(&rec);
9045         }
9046
9047         llapi_changelog_fini(&changelog_priv);
9048
9049         if (rc < 0)
9050                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
9051                         progname, strerror(errno = -rc));
9052
9053         return (rc == 1 ? 0 : rc);
9054 }
9055
9056 static int lfs_changelog_clear(int argc, char **argv)
9057 {
9058         long long endrec;
9059         int rc;
9060
9061         if (argc != 4)
9062                 return CMD_HELP;
9063
9064         errno = 0;
9065         endrec = strtoll(argv[3], NULL, 10);
9066         if (errno != 0 || endrec < 0) {
9067                 fprintf(stderr,
9068                         "%s: bad endrec '%s'\n",
9069                         argv[0], argv[3]);
9070                 return CMD_HELP;
9071         }
9072
9073         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
9074
9075         if (rc == -EINVAL)
9076                 fprintf(stderr, "%s: record out of range: %llu\n",
9077                         argv[0], endrec);
9078         else if (rc == -ENOENT)
9079                 fprintf(stderr, "%s: no changelog user: %s\n",
9080                         argv[0], argv[2]);
9081         else if (rc)
9082                 fprintf(stderr, "%s error: %s\n", argv[0],
9083                         strerror(-rc));
9084
9085         if (rc)
9086                 errno = -rc;
9087
9088         return rc;
9089 }
9090
9091 static void rstripc(char *str, int c)
9092 {
9093         char *end = str + strlen(str);
9094
9095         for (; str < end && end[-1] == c; --end)
9096                 end[-1] = '\0';
9097 }
9098
9099 static int lfs_fid2path(int argc, char **argv)
9100 {
9101         struct option long_opts[] = {
9102                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
9103                 { .val = 'c',   .name = "current",      .has_arg = no_argument },
9104                 { .val = 'c',   .name = "print-link",   .has_arg = no_argument },
9105                 { .val = 'f',   .name = "print-fid",    .has_arg = no_argument },
9106                 { .val = 'l',   .name = "link", .has_arg = required_argument },
9107                 { .name = NULL } };
9108         char short_opts[] = "cfl:pr:";
9109         bool print_link = false;
9110         bool print_fid = false;
9111         bool print_mnt_dir;
9112         char mnt_dir[PATH_MAX] = "";
9113         int mnt_fd = -1;
9114         char *path_or_fsname;
9115         long long recno = -1;
9116         int linkno = -1;
9117         char *endptr = NULL;
9118         int rc = 0;
9119         int c;
9120         int i;
9121
9122         while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
9123                 switch (c) {
9124                 case 'c':
9125                         print_link = true;
9126                         break;
9127                 case 'f':
9128                         print_fid = true;
9129                         break;
9130                 case 'l':
9131                         errno = 0;
9132                         linkno = strtol(optarg, &endptr, 10);
9133                         if (errno != 0 || *endptr != '\0' || linkno < 0) {
9134                                 fprintf(stderr,
9135                                         "%s fid2path: invalid linkno '%s'\n",
9136                                         progname, optarg);
9137                                 return CMD_HELP;
9138                         }
9139                         break;
9140                 case 'r':
9141                         /* recno is something to do with changelogs
9142                          * that was never implemented. We just pass it
9143                          * through for the MDT to ignore.
9144                          */
9145                         errno = 0;
9146                         recno = strtoll(optarg, &endptr, 10);
9147                         if (errno != 0 || *endptr != '\0' || recno < 0) {
9148                                 fprintf(stderr,
9149                                         "%s fid2path: invalid recno '%s'\n",
9150                                         progname, optarg);
9151                                 return CMD_HELP;
9152                         }
9153                         break;
9154                 default:
9155                         fprintf(stderr,
9156                                 "%s fid2path: unrecognized option '%s'\n",
9157                                 progname, argv[optind - 1]);
9158                         return CMD_HELP;
9159                 }
9160         }
9161
9162         if (argc - optind < 2) {
9163                 fprintf(stderr,
9164                         "Usage: %s fid2path FSNAME|ROOT FID...\n",
9165                         progname);
9166                 return CMD_HELP;
9167         }
9168
9169         path_or_fsname = argv[optind];
9170
9171         if (*path_or_fsname == '/') {
9172                 print_mnt_dir = true;
9173                 rc = llapi_search_mounts(path_or_fsname, 0, mnt_dir, NULL);
9174         } else {
9175                 print_mnt_dir = false;
9176                 rc = llapi_search_rootpath(mnt_dir, path_or_fsname);
9177         }
9178
9179         if (rc < 0) {
9180                 fprintf(stderr,
9181                         "%s fid2path: cannot resolve mount point for '%s': %s\n",
9182                         progname, path_or_fsname, strerror(-rc));
9183                 goto out;
9184         }
9185
9186         mnt_fd = open(mnt_dir, O_RDONLY | O_DIRECTORY);
9187         if (mnt_fd < 0) {
9188                 fprintf(stderr,
9189                         "%s fid2path: cannot open mount point for '%s': %s\n",
9190                         progname, path_or_fsname, strerror(-rc));
9191                 goto out;
9192         }
9193
9194         /* Strip trailing slashes from mnt_dir. */
9195         rstripc(mnt_dir + 1, '/');
9196
9197         for (i = optind + 1; i < argc; i++) {
9198                 const char *fid_str = argv[i];
9199                 struct lu_fid fid;
9200                 int rc2;
9201
9202                 rc2 = llapi_fid_parse(fid_str, &fid, NULL);
9203                 if (rc2 < 0) {
9204                         fprintf(stderr,
9205                                 "%s fid2path: invalid FID '%s'\n",
9206                                 progname, fid_str);
9207                         if (rc == 0)
9208                                 rc = rc2;
9209
9210                         continue;
9211                 }
9212
9213                 int linktmp = (linkno >= 0) ? linkno : 0;
9214                 while (1) {
9215                         int oldtmp = linktmp;
9216                         long long rectmp = recno;
9217                         char path_buf[PATH_MAX];
9218
9219                         rc2 = llapi_fid2path_at(mnt_fd, &fid,
9220                                 path_buf, sizeof(path_buf), &rectmp, &linktmp);
9221                         if (rc2 < 0) {
9222                                 fprintf(stderr,
9223                                         "%s fid2path: cannot find %s %s: %s\n",
9224                                         progname, path_or_fsname, fid_str,
9225                                         strerror(-rc2));
9226                                 if (rc == 0)
9227                                         rc = rc2;
9228                                 break;
9229                         }
9230
9231                         if (print_fid)
9232                                 printf("%s ", fid_str);
9233
9234                         if (print_link)
9235                                 printf("%d ", linktmp);
9236
9237                         /* You may think this looks wrong or weird (and it is!)
9238                          * but we are actually trying to preserve the old quirky
9239                          * behaviors (enforced by our old quirky tests!) that
9240                          * make lfs so much fun to work on:
9241                          *
9242                          *   lustre 0x200000007:0x1:0x0 => "/"
9243                          *   /mnt/lustre 0x200000007:0x1:0x0 => "/mnt/lustre//"
9244                          *
9245                          * Note that llapi_fid2path() returns "" for the root
9246                          * FID. */
9247
9248                         printf("%s%s%s\n",
9249                                print_mnt_dir ? mnt_dir : "",
9250                                (print_mnt_dir || *path_buf == '\0') ? "/" : "",
9251                                path_buf);
9252
9253                         if (linkno >= 0)
9254                                 /* specified linkno */
9255                                 break;
9256
9257                         if (oldtmp == linktmp)
9258                                 /* no more links */
9259                                 break;
9260                 }
9261         }
9262 out:
9263         if (!(mnt_fd < 0))
9264                 close(mnt_fd);
9265
9266         return rc;
9267 }
9268
9269 static int lfs_path2fid(int argc, char **argv)
9270 {
9271         struct option long_opts[] = {
9272                 { .val = 'p', .name = "parents", .has_arg = no_argument },
9273                 { .name = NULL } };
9274         char            **path;
9275         const char        short_opts[] = "p";
9276         const char       *sep = "";
9277         struct lu_fid     fid;
9278         int               rc = 0;
9279         bool              show_parents = false;
9280
9281         while ((rc = getopt_long(argc, argv, short_opts,
9282                                  long_opts, NULL)) != -1) {
9283                 switch (rc) {
9284                 case 'p':
9285                         show_parents = true;
9286                         break;
9287                 default:
9288                         fprintf(stderr,
9289                                 "%s path2fid: unrecognized option '%s'\n",
9290                                 progname, argv[optind - 1]);
9291                         return CMD_HELP;
9292                 }
9293         }
9294
9295         if (optind > argc - 1) {
9296                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
9297                         progname);
9298                 return CMD_HELP;
9299         } else if (optind < argc - 1) {
9300                 sep = ": ";
9301         }
9302
9303         rc = 0;
9304         for (path = argv + optind; *path != NULL; path++) {
9305                 int err = 0;
9306
9307                 if (!show_parents) {
9308                         err = llapi_path2fid(*path, &fid);
9309                         if (!err)
9310                                 printf("%s%s"DFID"\n",
9311                                        *sep != '\0' ? *path : "", sep,
9312                                        PFID(&fid));
9313                 } else {
9314                         char            name[NAME_MAX + 1];
9315                         unsigned int    linkno = 0;
9316
9317                         while ((err = llapi_path2parent(*path, linkno, &fid,
9318                                                 name, sizeof(name))) == 0) {
9319                                 if (*sep != '\0' && linkno == 0)
9320                                         printf("%s%s", *path, sep);
9321
9322                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
9323                                        PFID(&fid), name);
9324                                 linkno++;
9325                         }
9326
9327                         /* err == -ENODATA is end-of-loop */
9328                         if (linkno > 0 && err == -ENODATA) {
9329                                 printf("\n");
9330                                 err = 0;
9331                         }
9332                 }
9333
9334                 if (err) {
9335                         fprintf(stderr,
9336                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
9337                                 progname, show_parents ? "parent " : "", *path,
9338                                 strerror(-err));
9339                         if (rc == 0) {
9340                                 rc = err;
9341                                 errno = -err;
9342                         }
9343                 }
9344         }
9345
9346         return rc;
9347 }
9348
9349 #define MAX_ERRNO       4095
9350 #define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
9351
9352 static int lfs_rmfid_and_show_errors(const char *device, struct fid_array *fa)
9353 {
9354         int rc, rc2, k;
9355
9356         rc = llapi_rmfid(device, fa);
9357         if (rc < 0) {
9358                 fprintf(stderr, "%s rmfid: cannot remove FIDs: %s\n",
9359                         progname, strerror(-rc));
9360                 return rc;
9361         }
9362
9363         for (k = 0; k < fa->fa_nr; k++) {
9364                 rc2 = (__s32)fa->fa_fids[k].f_ver;
9365                 if (!IS_ERR_VALUE(rc2))
9366                         continue;
9367
9368                 if (rc == 0)
9369                         rc = rc2;
9370
9371                 fa->fa_fids[k].f_ver = 0;
9372                 fprintf(stderr, "%s rmfid: cannot remove "DFID": %s\n",
9373                         progname, PFID(&fa->fa_fids[k]), strerror(-rc2));
9374         }
9375
9376         return rc;
9377 }
9378
9379 static int lfs_rmfid(int argc, char **argv)
9380 {
9381         char *fidstr, *device;
9382         int rc = 0, rc2, nr;
9383         struct fid_array *fa;
9384
9385         if (optind > argc - 1) {
9386                 fprintf(stderr, "%s rmfid: missing dirname\n", progname);
9387                 return CMD_HELP;
9388         }
9389
9390         device = argv[optind++];
9391
9392         nr = argc - optind;
9393         fa = malloc(offsetof(struct fid_array, fa_fids[nr + 1]));
9394         if (!fa)
9395                 return -ENOMEM;
9396
9397         fa->fa_nr = 0;
9398         rc = 0;
9399         while (optind < argc) {
9400                 int found;
9401
9402                 fidstr = argv[optind++];
9403                 while (*fidstr == '[')
9404                         fidstr++;
9405                 found = sscanf(fidstr, SFID, RFID(&fa->fa_fids[fa->fa_nr]));
9406                 if (found != 3) {
9407                         fprintf(stderr, "unrecognized FID: %s\n",
9408                                 argv[optind - 1]);
9409                         exit(1);
9410                 }
9411                 fa->fa_nr++;
9412                 if (fa->fa_nr == OBD_MAX_FIDS_IN_ARRAY) {
9413                         /* start another batch */
9414                         rc2 = lfs_rmfid_and_show_errors(device, fa);
9415                         if (rc2 && !rc)
9416                                 rc = rc2;
9417                         fa->fa_nr = 0;
9418                 }
9419         }
9420         if (fa->fa_nr) {
9421                 rc2 = lfs_rmfid_and_show_errors(device, fa);
9422                 if (rc2 && !rc)
9423                         rc = rc2;
9424         }
9425
9426         return rc;
9427 }
9428
9429 static int lfs_data_version(int argc, char **argv)
9430 {
9431         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
9432         __u64 data_version;
9433         char *path;
9434         int fd;
9435         int rc;
9436         int c;
9437
9438         if (argc < 2) {
9439                 fprintf(stderr, "%s: FILE must be specified\n",
9440                         progname);
9441                 return CMD_HELP;
9442         }
9443
9444         while ((c = getopt(argc, argv, "hnrw")) != -1) {
9445                 switch (c) {
9446                 case 'n':
9447                         data_version_flags = 0;
9448                         break;
9449                 case 'r':
9450                         data_version_flags |= LL_DV_RD_FLUSH;
9451                         break;
9452                 case 'w':
9453                         data_version_flags |= LL_DV_WR_FLUSH;
9454                         break;
9455                 default:
9456                         fprintf(stderr,
9457                                 "%s data_version: unrecognized option '%s'\n",
9458                                 progname, argv[optind - 1]);
9459                         /* fallthrough */
9460                 case 'h':
9461                         return CMD_HELP;
9462                 }
9463         }
9464         if (optind == argc) {
9465                 fprintf(stderr, "%s data_version: FILE must be specified\n",
9466                         progname);
9467                 return CMD_HELP;
9468         }
9469
9470         path = argv[optind];
9471         fd = open(path, O_RDONLY);
9472         if (fd < 0) {
9473                 rc = -errno;
9474                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
9475                         progname, path, strerror(-rc));
9476                 return rc;
9477         }
9478
9479         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
9480         if (rc < 0)
9481                 fprintf(stderr,
9482                         "%s data_version: cannot get version for '%s': %s\n",
9483                         progname, path, strerror(-rc));
9484         else
9485                 printf("%ju" "\n", (uintmax_t)data_version);
9486
9487         close(fd);
9488         return rc;
9489 }
9490
9491 static int lfs_hsm_state(int argc, char **argv)
9492 {
9493         int rc;
9494         int i = 1;
9495         char *path;
9496         struct hsm_user_state hus;
9497
9498         if (argc < 2)
9499                 return CMD_HELP;
9500
9501         do {
9502                 path = argv[i];
9503
9504                 rc = llapi_hsm_state_get(path, &hus);
9505                 if (rc) {
9506                         fprintf(stderr, "can't get hsm state for %s: %s\n",
9507                                 path, strerror(errno = -rc));
9508                         return rc;
9509                 }
9510
9511                 /* Display path name and status flags */
9512                 printf("%s: (0x%08x)", path, hus.hus_states);
9513
9514                 if (hus.hus_states & HS_RELEASED)
9515                         printf(" released");
9516                 if (hus.hus_states & HS_EXISTS)
9517                         printf(" exists");
9518                 if (hus.hus_states & HS_DIRTY)
9519                         printf(" dirty");
9520                 if (hus.hus_states & HS_ARCHIVED)
9521                         printf(" archived");
9522                 /* Display user-settable flags */
9523                 if (hus.hus_states & HS_NORELEASE)
9524                         printf(" never_release");
9525                 if (hus.hus_states & HS_NOARCHIVE)
9526                         printf(" never_archive");
9527                 if (hus.hus_states & HS_LOST)
9528                         printf(" lost_from_hsm");
9529
9530                 if (hus.hus_archive_id != 0)
9531                         printf(", archive_id:%d", hus.hus_archive_id);
9532                 printf("\n");
9533
9534         } while (++i < argc);
9535
9536         return 0;
9537 }
9538
9539 #define LFS_HSM_SET   0
9540 #define LFS_HSM_CLEAR 1
9541
9542 /**
9543  * Generic function to set or clear HSM flags.
9544  * Used by hsm_set and hsm_clear.
9545  *
9546  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
9547  */
9548 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
9549 {
9550         struct option long_opts[] = {
9551         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
9552         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
9553         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
9554         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
9555         { .val = 'h',   .name = "help",         .has_arg = no_argument },
9556         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
9557         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
9558         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
9559         { .name = NULL } };
9560         __u64 mask = 0;
9561         int c, rc;
9562         char *path;
9563         __u32 archive_id = 0;
9564         char *end = NULL;
9565
9566         if (argc < 3)
9567                 return CMD_HELP;
9568
9569         while ((c = getopt_long(argc, argv, "aAdehi:lr",
9570                                 long_opts, NULL)) != -1) {
9571                 switch (c) {
9572                 case 'l':
9573                         mask |= HS_LOST;
9574                         break;
9575                 case 'a':
9576                         mask |= HS_NOARCHIVE;
9577                         break;
9578                 case 'A':
9579                         mask |= HS_ARCHIVED;
9580                         break;
9581                 case 'r':
9582                         mask |= HS_NORELEASE;
9583                         break;
9584                 case 'd':
9585                         mask |= HS_DIRTY;
9586                         break;
9587                 case 'e':
9588                         mask |= HS_EXISTS;
9589                         break;
9590                 case 'i':
9591                         errno = 0;
9592                         archive_id = strtol(optarg, &end, 10);
9593                         if (errno != 0 || *end != '\0' || archive_id < 0) {
9594                                 fprintf(stderr,
9595                                         "%s: invalid archive_id: '%s'\n",
9596                                         progname, end);
9597                                 return CMD_HELP;
9598                         }
9599                         break;
9600                 default:
9601                         fprintf(stderr, "%s: unrecognized option '%s'\n",
9602                                 progname, argv[optind - 1]);
9603                         /* fallthrough */
9604                 case 'h':
9605                         return CMD_HELP;
9606                 }
9607         }
9608
9609         /* User should have specified a flag */
9610         if (mask == 0)
9611                 return CMD_HELP;
9612
9613         while (optind < argc) {
9614                 path = argv[optind];
9615
9616                 /* If mode == 0, this means we apply the mask. */
9617                 if (mode == LFS_HSM_SET)
9618                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
9619                 else
9620                         rc = llapi_hsm_state_set(path, 0, mask, 0);
9621
9622                 if (rc != 0) {
9623                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
9624                                 path, strerror(errno = -rc));
9625                         return rc;
9626                 }
9627                 optind++;
9628         }
9629
9630         return 0;
9631 }
9632
9633 static int lfs_hsm_action(int argc, char **argv)
9634 {
9635         int                              rc;
9636         int                              i = 1;
9637         char                            *path;
9638         struct hsm_current_action        hca;
9639         struct hsm_extent                he;
9640         enum hsm_user_action             hua;
9641         enum hsm_progress_states         hps;
9642
9643         if (argc < 2)
9644                 return CMD_HELP;
9645
9646         do {
9647                 path = argv[i];
9648
9649                 rc = llapi_hsm_current_action(path, &hca);
9650                 if (rc) {
9651                         fprintf(stderr, "can't get hsm action for %s: %s\n",
9652                                 path, strerror(errno = -rc));
9653                         return rc;
9654                 }
9655                 he = hca.hca_location;
9656                 hua = hca.hca_action;
9657                 hps = hca.hca_state;
9658
9659                 printf("%s: %s", path, hsm_user_action2name(hua));
9660
9661                 /* Skip file without action */
9662                 if (hca.hca_action == HUA_NONE) {
9663                         printf("\n");
9664                         continue;
9665                 }
9666
9667                 printf(" %s ", hsm_progress_state2name(hps));
9668
9669                 if ((hps == HPS_RUNNING) &&
9670                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
9671                         printf("(%llu bytes moved)\n",
9672                                (unsigned long long)he.length);
9673                 else if ((he.offset + he.length) == LUSTRE_EOF)
9674                         printf("(from %llu to EOF)\n",
9675                                (unsigned long long)he.offset);
9676                 else
9677                         printf("(from %llu to %llu)\n",
9678                                (unsigned long long)he.offset,
9679                                (unsigned long long)(he.offset + he.length));
9680
9681         } while (++i < argc);
9682
9683         return 0;
9684 }
9685
9686 static int lfs_hsm_set(int argc, char **argv)
9687 {
9688         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
9689 }
9690
9691 static int lfs_hsm_clear(int argc, char **argv)
9692 {
9693         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
9694 }
9695
9696 /**
9697  * Check file state and return its fid, to be used by lfs_hsm_request().
9698  *
9699  * \param[in]     file      Path to file to check
9700  * \param[in,out] fid       Pointer to allocated lu_fid struct.
9701  * \param[in,out] last_dev  Pointer to last device id used.
9702  *
9703  * \return 0 on success.
9704  */
9705 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
9706                                 dev_t *last_dev)
9707 {
9708         struct stat     st;
9709         int             rc;
9710
9711         rc = lstat(file, &st);
9712         if (rc) {
9713                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
9714                 return -errno;
9715         }
9716         /*
9717          * Checking for regular file as archiving as posix copytool
9718          * rejects archiving files other than regular files
9719          */
9720         if (!S_ISREG(st.st_mode)) {
9721                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
9722                 return CMD_HELP;
9723         }
9724         /* A request should be ... */
9725         if (*last_dev != st.st_dev && *last_dev != 0) {
9726                 fprintf(stderr,
9727                         "All files should be on the same filesystem: %s\n",
9728                         file);
9729                 return -EINVAL;
9730         }
9731         *last_dev = st.st_dev;
9732
9733         rc = llapi_path2fid(file, fid);
9734         if (rc) {
9735                 fprintf(stderr, "Cannot read FID of %s: %s\n",
9736                         file, strerror(-rc));
9737                 return rc;
9738         }
9739         return 0;
9740 }
9741
9742 /* Fill an HSM HUR item with a given file name.
9743  *
9744  * If mntpath is set, then the filename is actually a FID, and no
9745  * lookup on the filesystem will be performed.
9746  *
9747  * \param[in]  hur         the user request to fill
9748  * \param[in]  idx         index of the item inside the HUR to fill
9749  * \param[in]  mntpath     mountpoint of Lustre
9750  * \param[in]  fname       filename (if mtnpath is NULL)
9751  *                         or FID (if mntpath is set)
9752  * \param[in]  last_dev    pointer to last device id used
9753  *
9754  * \retval 0 on success
9755  * \retval CMD_HELP or a negative errno on error
9756  */
9757 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
9758                          const char *mntpath, const char *fname,
9759                          dev_t *last_dev)
9760 {
9761         struct hsm_user_item *hui = &hur->hur_user_item[idx];
9762         int rc;
9763
9764         hui->hui_extent.length = -1;
9765
9766         if (mntpath) {
9767                 rc = llapi_fid_parse(fname, &hui->hui_fid, NULL);
9768                 if (rc)
9769                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
9770                                 fname);
9771         } else {
9772                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
9773         }
9774
9775         if (rc == 0)
9776                 hur->hur_request.hr_itemcount++;
9777
9778         return rc;
9779 }
9780
9781 static int lfs_hsm_request(int argc, char **argv, int action)
9782 {
9783         struct option long_opts[] = {
9784         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
9785         { .val = 'D',   .name = "data",         .has_arg = required_argument },
9786         { .val = 'h',   .name = "help",         .has_arg = no_argument },
9787         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
9788         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
9789         { .name = NULL } };
9790         dev_t last_dev = 0;
9791         struct hsm_user_request *hur, *oldhur;
9792         int c, i;
9793         size_t len;
9794         int nbfile;
9795         char *line = NULL;
9796         char *filelist = NULL;
9797         char fullpath[PATH_MAX];
9798         char *opaque = NULL;
9799         int opaque_len = 0;
9800         int archive_id = 0;
9801         FILE *fp;
9802         int nbfile_alloc = 0;
9803         char *some_file = NULL;
9804         char *mntpath = NULL;
9805         int rc;
9806
9807         if (argc < 2)
9808                 return CMD_HELP;
9809
9810         while ((c = getopt_long(argc, argv, "a:D:hl:m:",
9811                                 long_opts, NULL)) != -1) {
9812                 switch (c) {
9813                 case 'l':
9814                         filelist = optarg;
9815                         break;
9816                 case 'D':
9817                         opaque = optarg;
9818                         break;
9819                 case 'a':
9820                         if (action != HUA_ARCHIVE &&
9821                             action != HUA_REMOVE) {
9822                                 fprintf(stderr,
9823                                         "error: -a is supported only when archiving or removing\n");
9824                                 return CMD_HELP;
9825                         }
9826                         archive_id = atoi(optarg);
9827                         break;
9828                 case 'm':
9829                         if (!some_file) {
9830                                 mntpath = optarg;
9831                                 some_file = strdup(optarg);
9832                         }
9833                         break;
9834                 default:
9835                         fprintf(stderr, "%s: unrecognized option '%s'\n",
9836                                 progname, argv[optind - 1]);
9837                         /* fallthrough */
9838                 case 'h':
9839                         return CMD_HELP;
9840                 }
9841         }
9842
9843         /* All remaining args are files, so we have at least nbfile */
9844         nbfile = argc - optind;
9845
9846         if ((nbfile == 0) && (!filelist))
9847                 return CMD_HELP;
9848
9849         if (opaque)
9850                 opaque_len = strlen(opaque);
9851
9852         /*
9853          * Alloc the request structure with enough place to store all files
9854          * from command line.
9855          */
9856         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
9857         if (!hur) {
9858                 fprintf(stderr, "Cannot create the request: %s\n",
9859                         strerror(errno));
9860                 return errno;
9861         }
9862         nbfile_alloc = nbfile;
9863
9864         hur->hur_request.hr_action = action;
9865         hur->hur_request.hr_archive_id = archive_id;
9866         hur->hur_request.hr_flags = 0;
9867
9868         /* All remaining args are files, add them */
9869         if (nbfile != 0 && some_file == NULL)
9870                 some_file = strdup(argv[optind]);
9871
9872         for (i = 0; i < nbfile; i++) {
9873                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
9874                                    &last_dev);
9875                 if (rc)
9876                         goto out_free;
9877         }
9878
9879         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
9880
9881         /* If a filelist was specified, read the filelist from it. */
9882         if (filelist) {
9883                 fp = fopen(filelist, "r");
9884                 if (!fp) {
9885                         fprintf(stderr, "Cannot read the file list %s: %s\n",
9886                                 filelist, strerror(errno));
9887                         rc = -errno;
9888                         goto out_free;
9889                 }
9890
9891                 while ((rc = getline(&line, &len, fp)) != -1) {
9892                         /*
9893                          * If allocated buffer was too small, get something
9894                          * larger
9895                          */
9896                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
9897                                 ssize_t size;
9898
9899                                 nbfile_alloc = nbfile_alloc * 2 + 1;
9900                                 oldhur = hur;
9901                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
9902                                                                    opaque_len);
9903                                 if (!hur) {
9904                                         fprintf(stderr,
9905                                                 "hsm: cannot allocate the request: %s\n",
9906                                                 strerror(errno));
9907                                         hur = oldhur;
9908                                         rc = -errno;
9909                                         fclose(fp);
9910                                         goto out_free;
9911                                 }
9912                                 size = hur_len(oldhur);
9913                                 if (size < 0) {
9914                                         fprintf(stderr,
9915                                                 "hsm: cannot allocate %u files + %u bytes data\n",
9916                                                 oldhur->hur_request.hr_itemcount,
9917                                                 oldhur->hur_request.hr_data_len);
9918                                         free(hur);
9919                                         hur = oldhur;
9920                                         rc = -E2BIG;
9921                                         fclose(fp);
9922                                         goto out_free;
9923                                 }
9924                                 memcpy(hur, oldhur, size);
9925                                 free(oldhur);
9926                         }
9927
9928                         /* Chop CR */
9929                         if (line[strlen(line) - 1] == '\n')
9930                                 line[strlen(line) - 1] = '\0';
9931
9932                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
9933                                            mntpath, line, &last_dev);
9934                         if (rc) {
9935                                 fclose(fp);
9936                                 goto out_free;
9937                         }
9938
9939                         if (!some_file) {
9940                                 some_file = line;
9941                                 line = NULL;
9942                         }
9943                 }
9944
9945                 rc = fclose(fp);
9946                 free(line);
9947         }
9948
9949         /* If a --data was used, add it to the request */
9950         hur->hur_request.hr_data_len = opaque_len;
9951         if (opaque)
9952                 memcpy(hur_data(hur), opaque, opaque_len);
9953
9954         /* Send the HSM request */
9955         if (realpath(some_file, fullpath) == NULL) {
9956                 fprintf(stderr, "Could not find path '%s': %s\n",
9957                         some_file, strerror(errno));
9958         }
9959         rc = llapi_hsm_request(fullpath, hur);
9960         if (rc) {
9961                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
9962                         some_file, strerror(-rc));
9963                 goto out_free;
9964         }
9965
9966 out_free:
9967         free(some_file);
9968         free(hur);
9969         return rc;
9970 }
9971
9972 static int lfs_hsm_archive(int argc, char **argv)
9973 {
9974         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
9975 }
9976
9977 static int lfs_hsm_restore(int argc, char **argv)
9978 {
9979         return lfs_hsm_request(argc, argv, HUA_RESTORE);
9980 }
9981
9982 static int lfs_hsm_release(int argc, char **argv)
9983 {
9984         return lfs_hsm_request(argc, argv, HUA_RELEASE);
9985 }
9986
9987 static int lfs_hsm_remove(int argc, char **argv)
9988 {
9989         return lfs_hsm_request(argc, argv, HUA_REMOVE);
9990 }
9991
9992 static int lfs_hsm_cancel(int argc, char **argv)
9993 {
9994         return lfs_hsm_request(argc, argv, HUA_CANCEL);
9995 }
9996
9997 static int lfs_swap_layouts(int argc, char **argv)
9998 {
9999         if (argc != 3)
10000                 return CMD_HELP;
10001
10002         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
10003                                   SWAP_LAYOUTS_KEEP_MTIME |
10004                                   SWAP_LAYOUTS_KEEP_ATIME);
10005 }
10006
10007 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
10008
10009 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
10010
10011 int lfs_get_mode(const char *string)
10012 {
10013         enum lock_mode_user mode;
10014
10015         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
10016                 if (lock_mode_names[mode] == NULL)
10017                         continue;
10018                 if (strcasecmp(string, lock_mode_names[mode]) == 0)
10019                         return mode;
10020         }
10021
10022         return -EINVAL;
10023 }
10024
10025 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
10026 {
10027         enum lu_ladvise_type advice;
10028
10029         for (advice = 0;
10030              advice < ARRAY_SIZE(ladvise_names); advice++) {
10031                 if (ladvise_names[advice] == NULL)
10032                         continue;
10033                 if (strcmp(string, ladvise_names[advice]) == 0)
10034                         return advice;
10035         }
10036
10037         return LU_LADVISE_INVALID;
10038 }
10039
10040 static int lfs_ladvise(int argc, char **argv)
10041 {
10042         struct option long_opts[] = {
10043         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
10044         { .val = 'b',   .name = "background",   .has_arg = no_argument },
10045         { .val = 'e',   .name = "end",          .has_arg = required_argument },
10046         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10047         { .val = 'l',   .name = "length",       .has_arg = required_argument },
10048         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
10049         { .val = 's',   .name = "start",        .has_arg = required_argument },
10050         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
10051         { .name = NULL } };
10052         struct llapi_lu_ladvise advice;
10053         enum lu_ladvise_type advice_type = LU_LADVISE_INVALID;
10054         unsigned long long start = 0;
10055         unsigned long long end = LUSTRE_EOF;
10056         unsigned long long length = 0;
10057         unsigned long long size_units;
10058         unsigned long long flags = 0;
10059         int c, fd, rc = 0;
10060         const char *path;
10061         int mode = 0;
10062
10063         optind = 0;
10064         while ((c = getopt_long(argc, argv, "a:be:hl:m:s:u",
10065                                 long_opts, NULL)) != -1) {
10066                 switch (c) {
10067                 case 'a':
10068                         advice_type = lfs_get_ladvice(optarg);
10069                         if (advice_type == LU_LADVISE_INVALID) {
10070                                 fprintf(stderr,
10071                                         "%s: invalid advice type '%s'\n",
10072                                         progname, optarg);
10073                                 fprintf(stderr, "Valid types:");
10074
10075                                 for (advice_type = 0;
10076                                      advice_type < ARRAY_SIZE(ladvise_names);
10077                                      advice_type++) {
10078                                         if (ladvise_names[advice_type] == NULL)
10079                                                 continue;
10080                                         fprintf(stderr, " %s",
10081                                                 ladvise_names[advice_type]);
10082                                 }
10083                                 fprintf(stderr, "\n");
10084
10085                                 return CMD_HELP;
10086                         }
10087                         break;
10088                 case 'b':
10089                         flags |= LF_ASYNC;
10090                         break;
10091                 case 'u':
10092                         flags |= LF_UNSET;
10093                         break;
10094                 case 'e':
10095                         size_units = 1;
10096                         rc = llapi_parse_size(optarg, &end,
10097                                               &size_units, 0);
10098                         if (rc) {
10099                                 fprintf(stderr, "%s: bad end offset '%s'\n",
10100                                         argv[0], optarg);
10101                                 return CMD_HELP;
10102                         }
10103                         break;
10104                 case 's':
10105                         size_units = 1;
10106                         rc = llapi_parse_size(optarg, &start,
10107                                               &size_units, 0);
10108                         if (rc) {
10109                                 fprintf(stderr,
10110                                         "%s: bad start offset '%s'\n",
10111                                         argv[0], optarg);
10112                                 return CMD_HELP;
10113                         }
10114                         break;
10115                 case 'l':
10116                         size_units = 1;
10117                         rc = llapi_parse_size(optarg, &length,
10118                                               &size_units, 0);
10119                         if (rc) {
10120                                 fprintf(stderr, "%s: bad length '%s'\n",
10121                                         argv[0], optarg);
10122                                 return CMD_HELP;
10123                         }
10124                         break;
10125                 case 'm':
10126                         mode = lfs_get_mode(optarg);
10127                         if (mode < 0) {
10128                                 fprintf(stderr,
10129                                         "%s: bad mode '%s', valid modes are READ or WRITE\n",
10130                                         argv[0], optarg);
10131                                 return CMD_HELP;
10132                         }
10133                         break;
10134                 default:
10135                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10136                                 progname, argv[optind - 1]);
10137                         /* fallthrough */
10138                 case 'h':
10139                         return CMD_HELP;
10140                 }
10141         }
10142
10143         if (advice_type == LU_LADVISE_INVALID) {
10144                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
10145                 fprintf(stderr, "Valid types:");
10146                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
10147                      advice_type++) {
10148                         if (ladvise_names[advice_type] == NULL)
10149                                 continue;
10150                         fprintf(stderr, " %s", ladvise_names[advice_type]);
10151                 }
10152                 fprintf(stderr, "\n");
10153                 return CMD_HELP;
10154         }
10155
10156         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
10157                 fprintf(stderr,
10158                         "%s: Lock no expand advice is a per file descriptor advice, so when called from lfs, it does nothing.\n",
10159                         argv[0]);
10160                 return CMD_HELP;
10161         }
10162
10163         if (argc <= optind) {
10164                 fprintf(stderr, "%s: please give one or more file names\n",
10165                         argv[0]);
10166                 return CMD_HELP;
10167         }
10168
10169         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
10170                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
10171                         argv[0]);
10172                 return CMD_HELP;
10173         }
10174
10175         if (end == LUSTRE_EOF && length != 0)
10176                 end = start + length;
10177
10178         if (end <= start) {
10179                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
10180                         argv[0], start, end);
10181                 return CMD_HELP;
10182         }
10183
10184         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
10185                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
10186                         argv[0]);
10187                 return CMD_HELP;
10188         }
10189
10190         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
10191                 fprintf(stderr, "%s: mode is required with lockahead\n",
10192                         argv[0]);
10193                 return CMD_HELP;
10194         }
10195
10196         while (optind < argc) {
10197                 int rc2;
10198
10199                 path = argv[optind++];
10200
10201                 fd = open(path, O_RDONLY);
10202                 if (fd < 0) {
10203                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10204                                 argv[0], path, strerror(errno));
10205                         rc2 = -errno;
10206                         goto next;
10207                 }
10208
10209                 advice.lla_start = start;
10210                 advice.lla_end = end;
10211                 advice.lla_advice = advice_type;
10212                 advice.lla_value1 = 0;
10213                 advice.lla_value2 = 0;
10214                 advice.lla_value3 = 0;
10215                 advice.lla_value4 = 0;
10216                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
10217                         advice.lla_lockahead_mode = mode;
10218                         advice.lla_peradvice_flags = flags;
10219                 }
10220
10221                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
10222                 close(fd);
10223                 if (rc2 < 0) {
10224                         fprintf(stderr,
10225                                 "%s: cannot give advice '%s' to file '%s': %s\n",
10226                                 argv[0], ladvise_names[advice_type],
10227                                 path, strerror(errno));
10228
10229                         goto next;
10230                 }
10231
10232 next:
10233                 if (rc == 0 && rc2 < 0)
10234                         rc = rc2;
10235         }
10236         return rc;
10237 }
10238
10239 static const char *const heat_names[] = LU_HEAT_NAMES;
10240
10241 static int lfs_heat_get(int argc, char **argv)
10242 {
10243         struct lu_heat *heat;
10244         int rc = 0, rc2;
10245         char *path;
10246         int fd;
10247         int i;
10248
10249         if (argc <= 1)
10250                 return CMD_HELP;
10251
10252         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
10253         if (!heat) {
10254                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
10255                 return -ENOMEM;
10256         }
10257
10258         optind = 1;
10259         while (optind < argc) {
10260                 path = argv[optind++];
10261
10262                 fd = open(path, O_RDONLY);
10263                 if (fd < 0) {
10264                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10265                                 argv[0], path, strerror(errno));
10266                         rc2 = -errno;
10267                         goto next;
10268                 }
10269
10270                 heat->lh_count = OBD_HEAT_COUNT;
10271                 rc2 = llapi_heat_get(fd, heat);
10272                 close(fd);
10273                 if (rc2 < 0) {
10274                         fprintf(stderr,
10275                                 "%s: cannot get heat of file '%s': %s\n",
10276                                 argv[0], path, strerror(errno));
10277                         goto next;
10278                 }
10279
10280                 printf("flags: %x\n", heat->lh_flags);
10281                 for (i = 0; i < heat->lh_count; i++)
10282                         printf("%s: %llu\n", heat_names[i],
10283                                (unsigned long long)heat->lh_heat[i]);
10284 next:
10285                 if (rc == 0 && rc2 < 0)
10286                         rc = rc2;
10287         }
10288
10289         free(heat);
10290         return rc;
10291 }
10292
10293 static int lfs_heat_set(int argc, char **argv)
10294 {
10295         struct option long_opts[] = {
10296         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
10297         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10298         { .val = 'o',   .name = "off",          .has_arg = no_argument },
10299         { .val = 'O',   .name = "on",           .has_arg = no_argument },
10300         { .name = NULL } };
10301         enum lu_heat_flag flags = 0;
10302         int rc = 0, rc2;
10303         char *path;
10304         int fd;
10305         int c;
10306
10307         if (argc <= 1)
10308                 return CMD_HELP;
10309
10310         optind = 0;
10311         while ((c = getopt_long(argc, argv, "choO", long_opts, NULL)) != -1) {
10312                 switch (c) {
10313                 case 'c':
10314                         flags |= LU_HEAT_FLAG_CLEAR;
10315                         break;
10316                 case 'o':
10317                         flags |= LU_HEAT_FLAG_CLEAR;
10318                         flags |= LU_HEAT_FLAG_OFF;
10319                         break;
10320                 case 'O':
10321                         flags &= ~LU_HEAT_FLAG_OFF;
10322                         break;
10323                 default:
10324                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10325                                 progname, argv[optind - 1]);
10326                         /* fallthrough */
10327                 case 'h':
10328                         return CMD_HELP;
10329                 }
10330         }
10331
10332         if (argc <= optind) {
10333                 fprintf(stderr, "%s: please give one or more file names\n",
10334                         argv[0]);
10335                 return CMD_HELP;
10336         }
10337
10338         while (optind < argc) {
10339                 path = argv[optind++];
10340
10341                 fd = open(path, O_RDONLY);
10342                 if (fd < 0) {
10343                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10344                                 argv[0], path, strerror(errno));
10345                         rc2 = -errno;
10346                         goto next;
10347                 }
10348
10349                 rc2 = llapi_heat_set(fd, flags);
10350                 close(fd);
10351                 if (rc2 < 0) {
10352                         fprintf(stderr,
10353                                 "%s: cannot setflags heat of file '%s': %s\n",
10354                                 argv[0], path, strerror(errno));
10355                         goto next;
10356                 }
10357 next:
10358                 if (rc == 0 && rc2 < 0)
10359                         rc = rc2;
10360         }
10361         return rc;
10362 }
10363
10364 /**
10365  * The input string contains a comma delimited list of component ids and
10366  * ranges, for example "1,2-4,7".
10367  */
10368 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
10369 {
10370         bool end_of_loop = false;
10371         char *ptr = NULL;
10372         int nr = 0;
10373         int rc;
10374
10375         if (!arg)
10376                 return -EINVAL;
10377
10378         while (!end_of_loop) {
10379                 int start_index;
10380                 int end_index;
10381                 int i;
10382                 char *endptr = NULL;
10383
10384                 rc = -EINVAL;
10385                 ptr = strchrnul(arg, ',');
10386                 end_of_loop = *ptr == '\0';
10387                 *ptr = '\0';
10388
10389                 start_index = strtol(arg, &endptr, 0);
10390                 if (endptr == arg) /* no data at all */
10391                         break;
10392                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
10393                         break;
10394                 if (start_index < 0)
10395                         break;
10396
10397                 end_index = start_index;
10398                 if (*endptr == '-') {
10399                         end_index = strtol(endptr + 1, &endptr, 0);
10400                         if (*endptr != '\0')
10401                                 break;
10402                         if (end_index < start_index)
10403                                 break;
10404                 }
10405
10406                 for (i = start_index; i <= end_index && size > 0; i++) {
10407                         int j;
10408
10409                         /* remove duplicate */
10410                         for (j = 0; j < nr; j++) {
10411                                 if (ids[j] == i)
10412                                         break;
10413                         }
10414                         if (j == nr) { /* no duplicate */
10415                                 ids[nr++] = i;
10416                                 --size;
10417                         }
10418                 }
10419
10420                 if (size == 0 && i < end_index)
10421                         break;
10422
10423                 *ptr = ',';
10424                 arg = ++ptr;
10425                 rc = 0;
10426         }
10427         if (!end_of_loop && ptr)
10428                 *ptr = ',';
10429
10430         return rc < 0 ? rc : nr;
10431 }
10432
10433 /**
10434  * struct verify_mirror_id - Mirror id to be verified.
10435  * @mirror_id:   A specified mirror id.
10436  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
10437  */
10438 struct verify_mirror_id {
10439         __u16 mirror_id;
10440         bool is_valid_id;
10441 };
10442
10443 /**
10444  * compare_mirror_ids() - Compare mirror ids.
10445  * @layout: Mirror component list.
10446  * @cbdata: Callback data in verify_mirror_id structure.
10447  *
10448  * This is a callback function called by llapi_layout_comp_iterate()
10449  * to compare the specified mirror id with the one in the current
10450  * component of @layout. If they are the same, then the specified
10451  * mirror id is valid.
10452  *
10453  * Return: a negative error code on failure or
10454  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
10455  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
10456  */
10457 static inline
10458 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
10459 {
10460         struct verify_mirror_id *mirror_id_cbdata =
10461                                  (struct verify_mirror_id *)cbdata;
10462         uint32_t mirror_id;
10463         int rc = 0;
10464
10465         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
10466         if (rc < 0) {
10467                 rc = -errno;
10468                 fprintf(stderr,
10469                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
10470                         progname, strerror(errno));
10471                 return rc;
10472         }
10473
10474         if (mirror_id_cbdata->mirror_id == mirror_id) {
10475                 mirror_id_cbdata->is_valid_id = true;
10476                 return LLAPI_LAYOUT_ITER_STOP;
10477         }
10478
10479         return LLAPI_LAYOUT_ITER_CONT;
10480 }
10481
10482 /**
10483  * verify_mirror_ids() - Verify specified mirror ids.
10484  * @fname:      Mirrored file name.
10485  * @mirror_ids: Specified mirror ids to be verified.
10486  * @ids_nr:     Number of specified mirror ids.
10487  *
10488  * This function verifies that specified @mirror_ids are valid
10489  * in the mirrored file @fname.
10490  *
10491  * Return: 0 on success or a negative error code on failure.
10492  */
10493 static inline
10494 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
10495 {
10496         struct llapi_layout *layout = NULL;
10497         struct verify_mirror_id mirror_id_cbdata = { 0 };
10498         struct stat stbuf;
10499         uint32_t flr_state;
10500         int i;
10501         int fd;
10502         int rc = 0;
10503         int rc2 = 0;
10504
10505         if (ids_nr <= 0)
10506                 return -EINVAL;
10507
10508         if (stat(fname, &stbuf) < 0) {
10509                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10510                         progname, fname, strerror(errno));
10511                 rc = -errno;
10512                 goto error;
10513         }
10514
10515         if (!S_ISREG(stbuf.st_mode)) {
10516                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10517                         progname, fname);
10518                 rc = -EINVAL;
10519                 goto error;
10520         }
10521
10522         fd = open(fname, O_DIRECT | O_RDONLY);
10523         if (fd < 0) {
10524                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10525                         progname, fname, strerror(errno));
10526                 rc = -errno;
10527                 goto error;
10528         }
10529
10530         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10531         if (rc < 0) {
10532                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10533                         progname, fname, strerror(errno));
10534                 goto close_fd;
10535         }
10536
10537         layout = llapi_layout_get_by_fd(fd, 0);
10538         if (!layout) {
10539                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10540                         progname, fname, strerror(errno));
10541                 rc = -errno;
10542                 llapi_lease_release(fd);
10543                 goto close_fd;
10544         }
10545
10546         rc = llapi_layout_flags_get(layout, &flr_state);
10547         if (rc < 0) {
10548                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10549                         progname, fname, strerror(errno));
10550                 rc = -errno;
10551                 goto free_layout;
10552         }
10553
10554         flr_state &= LCM_FL_FLR_MASK;
10555         switch (flr_state) {
10556         case LCM_FL_NONE:
10557                 rc = -EINVAL;
10558                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10559                         progname, fname, llapi_layout_flags_string(flr_state));
10560                 goto free_layout;
10561         default:
10562                 break;
10563         }
10564
10565         rc2 = 0;
10566         for (i = 0; i < ids_nr; i++) {
10567                 mirror_id_cbdata.mirror_id = mirror_ids[i];
10568                 mirror_id_cbdata.is_valid_id = false;
10569
10570                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
10571                                                &mirror_id_cbdata);
10572                 if (rc < 0) {
10573                         rc = -errno;
10574                         fprintf(stderr,
10575                                 "%s: '%s' failed to verify mirror id: %u.\n",
10576                                 progname, fname, mirror_ids[i]);
10577                         goto free_layout;
10578                 }
10579
10580                 if (!mirror_id_cbdata.is_valid_id) {
10581                         rc2 = -EINVAL;
10582                         fprintf(stderr,
10583                                 "%s: '%s' invalid specified mirror id: %u.\n",
10584                                 progname, fname, mirror_ids[i]);
10585                 }
10586         }
10587         rc = rc2;
10588
10589 free_layout:
10590         llapi_layout_free(layout);
10591         llapi_lease_release(fd);
10592 close_fd:
10593         close(fd);
10594 error:
10595         return rc;
10596 }
10597
10598 static inline
10599 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
10600                            __u16 *mirror_ids, int ids_nr)
10601 {
10602         struct llapi_resync_comp comp_array[1024] = { { 0 } };
10603         struct llapi_layout *layout;
10604         struct stat stbuf;
10605         uint32_t flr_state;
10606         uint64_t start;
10607         uint64_t end;
10608         int comp_size = 0;
10609         int idx;
10610         int fd;
10611         int rc;
10612         int rc2;
10613
10614         if (stat(fname, &stbuf) < 0) {
10615                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10616                         progname, fname, strerror(errno));
10617                 rc = -errno;
10618                 goto error;
10619         }
10620         if (!S_ISREG(stbuf.st_mode)) {
10621                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10622                         progname, fname);
10623                 rc = -EINVAL;
10624                 goto error;
10625         }
10626
10627         fd = open(fname, O_DIRECT | O_RDWR);
10628         if (fd < 0) {
10629                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10630                         progname, fname, strerror(errno));
10631                 rc = -errno;
10632                 goto error;
10633         }
10634
10635         layout = llapi_layout_get_by_fd(fd, 0);
10636         if (!layout) {
10637                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10638                         progname, fname, strerror(errno));
10639                 rc = -errno;
10640                 goto close_fd;
10641         }
10642
10643         rc = llapi_layout_flags_get(layout, &flr_state);
10644         if (rc) {
10645                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10646                         progname, fname, strerror(errno));
10647                 rc = -errno;
10648                 goto free_layout;
10649         }
10650
10651         flr_state &= LCM_FL_FLR_MASK;
10652         if (flr_state == LCM_FL_NONE) {
10653                 rc = -EINVAL;
10654                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
10655                         progname, fname);
10656                 goto free_layout;
10657         }
10658
10659         /* get stale component info */
10660         comp_size = llapi_mirror_find_stale(layout, comp_array,
10661                                             ARRAY_SIZE(comp_array),
10662                                             mirror_ids, ids_nr);
10663         if (comp_size <= 0) {
10664                 rc = comp_size;
10665                 goto free_layout;
10666         }
10667
10668         ioc->lil_mode = LL_LEASE_WRLCK;
10669         ioc->lil_flags = LL_LEASE_RESYNC;
10670         rc = llapi_lease_set(fd, ioc);
10671         if (rc < 0) {
10672                 if (rc == -EALREADY)
10673                         rc = 0;
10674                 else
10675                         fprintf(stderr,
10676                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
10677                                 progname, fname, strerror(-rc));
10678                 goto free_layout;
10679         }
10680
10681         /* get the read range [start, end) */
10682         start = comp_array[0].lrc_start;
10683         end = comp_array[0].lrc_end;
10684         for (idx = 1; idx < comp_size; idx++) {
10685                 if (comp_array[idx].lrc_start < start)
10686                         start = comp_array[idx].lrc_start;
10687                 if (end < comp_array[idx].lrc_end)
10688                         end = comp_array[idx].lrc_end;
10689         }
10690
10691         rc = llapi_lease_check(fd);
10692         if (rc != LL_LEASE_WRLCK) {
10693                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
10694                         progname, fname);
10695                 goto free_layout;
10696         }
10697
10698         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
10699                                       start, end);
10700         if (rc < 0)
10701                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %s.\n",
10702                         progname, fname, strerror(-rc));
10703
10704         rc = migrate_set_timestamps(fd, &stbuf);
10705         if (rc < 0) {
10706                 fprintf(stderr, "%s: '%s' cannot set timestamps: %s\n",
10707                         progname, fname, strerror(-rc));
10708                 goto free_layout;
10709         }
10710
10711         /* need to do the lease unlock even resync fails */
10712         ioc->lil_mode = LL_LEASE_UNLCK;
10713         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10714         ioc->lil_count = 0;
10715         for (idx = 0; idx < comp_size; idx++) {
10716                 if (comp_array[idx].lrc_synced) {
10717                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
10718                         ioc->lil_count++;
10719                 }
10720         }
10721
10722         rc2 = llapi_lease_set(fd, ioc);
10723         /**
10724          * llapi_lease_set returns lease mode when it request to unlock
10725          * the lease lock.
10726          */
10727         if (rc2 <= 0) {
10728                 /* rc2 == 0 means lost lease lock */
10729                 if (rc2 == 0 && rc == 0)
10730                         rc = -EBUSY;
10731                 else
10732                         rc = rc2;
10733                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
10734                         progname, fname,
10735                         rc2 == 0 ? "lost lease lock" : strerror(-rc2));
10736
10737                 llapi_lease_release(fd);
10738                 goto free_layout;
10739         }
10740
10741 free_layout:
10742         llapi_layout_free(layout);
10743 close_fd:
10744         close(fd);
10745 error:
10746         return rc;
10747 }
10748
10749 static inline int lfs_mirror_resync(int argc, char **argv)
10750 {
10751         struct option long_opts[] = {
10752         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10753         { .val = 'o',   .name = "only",         .has_arg = required_argument },
10754         { .name = NULL } };
10755         struct ll_ioc_lease *ioc = NULL;
10756         __u16 mirror_ids[128] = { 0 };
10757         int ids_nr = 0;
10758         int c;
10759         int rc = 0;
10760
10761         while ((c = getopt_long(argc, argv, "ho:", long_opts, NULL)) >= 0) {
10762                 switch (c) {
10763                 case 'o':
10764                         rc = parse_mirror_ids(mirror_ids,
10765                                         sizeof(mirror_ids) / sizeof(__u16),
10766                                         optarg);
10767                         if (rc < 0) {
10768                                 fprintf(stderr,
10769                                         "%s: bad mirror ids '%s'.\n",
10770                                         argv[0], optarg);
10771                                 goto error;
10772                         }
10773                         ids_nr = rc;
10774                         break;
10775                 default:
10776                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10777                                 progname, argv[optind - 1]);
10778                         /* fallthrough */
10779                 case 'h':
10780                         rc = CMD_HELP;
10781                         goto error;
10782                 }
10783         }
10784
10785         if (argc == optind) {
10786                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
10787                 rc = CMD_HELP;
10788                 goto error;
10789         }
10790
10791         if (ids_nr > 0 && argc > optind + 1) {
10792                 fprintf(stderr,
10793                     "%s: option '--only' cannot be used upon multiple files.\n",
10794                         argv[0]);
10795                 rc = CMD_HELP;
10796                 goto error;
10797         }
10798
10799         if (ids_nr > 0) {
10800                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
10801                 if (rc < 0)
10802                         goto error;
10803         }
10804
10805         /* set the lease on the file */
10806         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
10807         if (!ioc) {
10808                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
10809                         argv[0], strerror(errno));
10810                 rc = -errno;
10811                 goto error;
10812         }
10813
10814         for (; optind < argc; optind++) {
10815                 rc = lfs_mirror_resync_file(argv[optind], ioc,
10816                                             mirror_ids, ids_nr);
10817                 /* ignore previous file's error, continue with next file */
10818
10819                 /* reset ioc */
10820                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
10821         }
10822
10823         free(ioc);
10824 error:
10825         return rc;
10826 }
10827
10828 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
10829 {
10830         struct llapi_layout *layout;
10831         int rc;
10832
10833         layout = llapi_layout_get_by_fd(fd, 0);
10834         if (!layout) {
10835                 fprintf(stderr, "could not get layout.\n");
10836                 return  -EINVAL;
10837         }
10838
10839         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
10840         if (rc < 0) {
10841                 fprintf(stderr, "failed to iterate layout\n");
10842                 llapi_layout_free(layout);
10843
10844                 return rc;
10845         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
10846                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
10847                 llapi_layout_free(layout);
10848
10849                 return -EINVAL;
10850         }
10851         llapi_layout_free(layout);
10852
10853         return 0;
10854 }
10855
10856 /**
10857  * Check whether two files are the same file
10858  * \retval      0  same file
10859  * \retval      1  not the same file
10860  * \retval      <0 error code
10861  */
10862 static inline int check_same_file(int fd, const char *f2)
10863 {
10864         struct stat stbuf1;
10865         struct stat stbuf2;
10866
10867         if (fstat(fd, &stbuf1) < 0)
10868                 return -errno;
10869
10870         if (stat(f2, &stbuf2) < 0)
10871                 return 1;
10872
10873         if (stbuf1.st_rdev == stbuf2.st_rdev &&
10874             stbuf1.st_ino == stbuf2.st_ino)
10875                 return 0;
10876
10877         return 1;
10878 }
10879
10880 static inline int lfs_mirror_read(int argc, char **argv)
10881 {
10882         int rc = CMD_HELP;
10883         __u16 mirror_id = 0;
10884         const char *outfile = NULL;
10885         char *fname;
10886         int fd = 0;
10887         int outfd;
10888         int c;
10889         void *buf;
10890         const size_t buflen = 4 << 20;
10891         off_t pos;
10892         struct option long_opts[] = {
10893         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10894         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
10895         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
10896         { .name = NULL } };
10897
10898         while ((c = getopt_long(argc, argv, "hN:o:", long_opts, NULL)) >= 0) {
10899                 char *end;
10900
10901                 switch (c) {
10902                 case 'N': {
10903                         unsigned long int id;
10904
10905                         errno = 0;
10906                         id = strtoul(optarg, &end, 0);
10907                         if (errno != 0 || *end != '\0' || id == 0 ||
10908                             id > UINT16_MAX) {
10909                                 fprintf(stderr,
10910                                         "%s %s: invalid mirror ID '%s'\n",
10911                                         progname, argv[0], optarg);
10912                                 return rc;
10913                         }
10914
10915                         mirror_id = (__u16)id;
10916                         break;
10917                 }
10918                 case 'o':
10919                         outfile = optarg;
10920                         break;
10921                 default:
10922                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10923                                 progname, argv[optind - 1]);
10924                         /* fallthrough */
10925                 case 'h':
10926                         return CMD_HELP;
10927                 }
10928         }
10929
10930         if (argc == optind) {
10931                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10932                         progname, argv[0]);
10933                 return rc;
10934         } else if (argc > optind + 1) {
10935                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10936                 return rc;
10937         }
10938
10939         if (mirror_id == 0) {
10940                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
10941                         progname, argv[0]);
10942                 return rc;
10943         }
10944
10945         /* open mirror file */
10946         fname = argv[optind];
10947         fd = open(fname, O_DIRECT | O_RDONLY);
10948         if (fd < 0) {
10949                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
10950                         progname, argv[0], fname, strerror(errno));
10951                 return rc;
10952         }
10953
10954         /* verify mirror id */
10955         rc = verify_mirror_id_by_fd(fd, mirror_id);
10956         if (rc) {
10957                 fprintf(stderr,
10958                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10959                         progname, argv[0], mirror_id, fname);
10960                 goto close_fd;
10961         }
10962
10963         /* open output file - O_EXCL ensures output is not the same as input */
10964         if (outfile) {
10965                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
10966                 if (outfd < 0) {
10967                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
10968                                 progname, argv[0], outfile, strerror(errno));
10969                         rc = -errno;
10970                         goto close_fd;
10971                 }
10972         } else {
10973                 outfd = STDOUT_FILENO;
10974         }
10975
10976         /* allocate buffer */
10977         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
10978         if (rc) {
10979                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
10980                                 progname, argv[0], rc);
10981                 goto close_outfd;
10982         }
10983
10984         pos = 0;
10985         while (1) {
10986                 ssize_t bytes_read;
10987                 ssize_t written = 0;
10988
10989                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
10990                 if (bytes_read < 0) {
10991                         rc = bytes_read;
10992                         fprintf(stderr,
10993                                 "%s %s: fail to read data from mirror %u: %s\n",
10994                                 progname, argv[0], mirror_id, strerror(-rc));
10995                         goto free_buf;
10996                 }
10997
10998                 /* EOF reached */
10999                 if (bytes_read == 0)
11000                         break;
11001
11002                 while (written < bytes_read) {
11003                         ssize_t written2;
11004
11005                         written2 = write(outfd, buf + written,
11006                                          bytes_read - written);
11007                         if (written2 < 0) {
11008                                 fprintf(stderr,
11009                                         "%s %s: fail to write %s: %s\n",
11010                                         progname, argv[0], outfile ? : "STDOUT",
11011                                         strerror(errno));
11012                                 rc = -errno;
11013                                 goto free_buf;
11014                         }
11015                         written += written2;
11016                 }
11017
11018                 if (written != bytes_read) {
11019                         fprintf(stderr,
11020                 "%s %s: written %ld bytes does not match with %ld read.\n",
11021                                 progname, argv[0], written, bytes_read);
11022                         rc = -EIO;
11023                         goto free_buf;
11024                 }
11025
11026                 pos += bytes_read;
11027         }
11028
11029         fsync(outfd);
11030         rc = 0;
11031
11032 free_buf:
11033         free(buf);
11034 close_outfd:
11035         if (outfile)
11036                 close(outfd);
11037 close_fd:
11038         close(fd);
11039
11040         return rc;
11041 }
11042
11043 static inline int lfs_mirror_write(int argc, char **argv)
11044 {
11045         int rc = CMD_HELP;
11046         __u16 mirror_id = 0;
11047         const char *inputfile = NULL;
11048         char *fname;
11049         int fd = 0;
11050         int inputfd;
11051         int c;
11052         void *buf;
11053         const size_t buflen = 4 << 20;
11054         off_t pos;
11055         size_t page_size = sysconf(_SC_PAGESIZE);
11056         struct ll_ioc_lease_id ioc;
11057         struct option long_opts[] = {
11058         { .val = 'h',   .name = "help",         .has_arg = no_argument },
11059         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
11060         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
11061         { .name = NULL } };
11062
11063         while ((c = getopt_long(argc, argv, "hi:N:", long_opts, NULL)) >= 0) {
11064                 char *end;
11065
11066                 switch (c) {
11067                 case 'N': {
11068                         unsigned long int id;
11069
11070                         errno = 0;
11071                         id = strtoul(optarg, &end, 0);
11072                         if (errno != 0 || *end != '\0' || id == 0 ||
11073                             id > UINT16_MAX) {
11074                                 fprintf(stderr,
11075                                         "%s %s: invalid mirror ID '%s'\n",
11076                                         progname, argv[0], optarg);
11077                                 return rc;
11078                         }
11079
11080                         mirror_id = (__u16)id;
11081                         break;
11082                 }
11083                 case 'i':
11084                         inputfile = optarg;
11085                         break;
11086                 default:
11087                         fprintf(stderr, "%s: unrecognized option '%s'\n",
11088                                 progname, argv[optind - 1]);
11089                         /* fallthrough */
11090                 case 'h':
11091                         return CMD_HELP;
11092                 }
11093         }
11094
11095         if (argc == optind) {
11096                 fprintf(stderr, "%s %s: no mirrored file provided\n",
11097                         progname, argv[0]);
11098                 return rc;
11099         } else if (argc > optind + 1) {
11100                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
11101                 return rc;
11102         }
11103
11104         if (mirror_id == 0) {
11105                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
11106                         progname, argv[0]);
11107                 return rc;
11108         }
11109
11110         /* open mirror file */
11111         fname = argv[optind];
11112         fd = open(fname, O_DIRECT | O_WRONLY);
11113         if (fd < 0) {
11114                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11115                         progname, argv[0], fname, strerror(errno));
11116                 return rc;
11117         }
11118
11119         /* verify mirror id */
11120         rc = verify_mirror_id_by_fd(fd, mirror_id);
11121         if (rc) {
11122                 fprintf(stderr,
11123                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11124                         progname, argv[0], mirror_id, fname);
11125                 goto close_fd;
11126         }
11127
11128         /* open input file */
11129         if (inputfile) {
11130                 rc = check_same_file(fd, inputfile);
11131                 if (rc == 0) {
11132                         fprintf(stderr,
11133                         "%s %s: input file cannot be the mirrored file\n",
11134                                 progname, argv[0]);
11135                         goto close_fd;
11136                 }
11137                 if (rc < 0)
11138                         goto close_fd;
11139
11140                 inputfd = open(inputfile, O_RDONLY, 0644);
11141                 if (inputfd < 0) {
11142                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
11143                                 progname, argv[0], inputfile, strerror(errno));
11144                         rc = -errno;
11145                         goto close_fd;
11146                 }
11147         } else {
11148                 inputfd = STDIN_FILENO;
11149         }
11150
11151         /* allocate buffer */
11152         rc = posix_memalign(&buf, page_size, buflen);
11153         if (rc) {
11154                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
11155                         progname, argv[0], rc);
11156                 goto close_inputfd;
11157         }
11158
11159         /* prepare target mirror components instantiation */
11160         ioc.lil_mode = LL_LEASE_WRLCK;
11161         ioc.lil_flags = LL_LEASE_RESYNC;
11162         ioc.lil_mirror_id = mirror_id;
11163         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
11164         if (rc < 0) {
11165                 fprintf(stderr,
11166                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
11167                         progname, argv[0], fname, strerror(errno));
11168                 goto free_buf;
11169         }
11170
11171         pos = 0;
11172         while (1) {
11173                 ssize_t bytes_read;
11174                 ssize_t written;
11175                 size_t to_write;
11176
11177                 rc = llapi_lease_check(fd);
11178                 if (rc != LL_LEASE_WRLCK) {
11179                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
11180                                 progname, argv[0], fname);
11181                         goto free_buf;
11182                 }
11183
11184                 bytes_read = read(inputfd, buf, buflen);
11185                 if (bytes_read < 0) {
11186                         rc = bytes_read;
11187                         fprintf(stderr,
11188                                 "%s %s: fail to read data from '%s': %s\n",
11189                                 progname, argv[0], inputfile ? : "STDIN",
11190                                 strerror(errno));
11191                         rc = -errno;
11192                         goto free_buf;
11193                 }
11194
11195                 /* EOF reached */
11196                 if (bytes_read == 0)
11197                         break;
11198
11199                 /* round up to page align to make direct IO happy. */
11200                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
11201
11202                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
11203                                              pos);
11204                 if (written < 0) {
11205                         rc = written;
11206                         fprintf(stderr,
11207                               "%s %s: fail to write to mirror %u: %s\n",
11208                                 progname, argv[0], mirror_id,
11209                                 strerror(-rc));
11210                         goto free_buf;
11211                 }
11212
11213                 pos += bytes_read;
11214         }
11215
11216         if (pos & (page_size - 1)) {
11217                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
11218                 if (rc < 0)
11219                         goto free_buf;
11220         }
11221
11222         ioc.lil_mode = LL_LEASE_UNLCK;
11223         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
11224         ioc.lil_count = 0;
11225         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
11226         if (rc <= 0) {
11227                 if (rc == 0)
11228                         rc = -EBUSY;
11229                 fprintf(stderr,
11230                         "%s %s: release lease lock of '%s' failed: %s\n",
11231                         progname, argv[0], fname, strerror(errno));
11232                 goto free_buf;
11233         }
11234
11235         rc = 0;
11236
11237 free_buf:
11238         free(buf);
11239 close_inputfd:
11240         if (inputfile)
11241                 close(inputfd);
11242 close_fd:
11243         close(fd);
11244
11245         return rc;
11246 }
11247
11248 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
11249 {
11250         struct llapi_layout *layout;
11251         struct collect_ids_data cid = { .cid_ids = ids,
11252                                         .cid_count = 0,
11253                                         .cid_exclude = exclude_id, };
11254         int rc;
11255
11256         layout = llapi_layout_get_by_fd(fd, 0);
11257         if (!layout) {
11258                 fprintf(stderr, "could not get layout\n");
11259                 return -EINVAL;
11260         }
11261
11262         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
11263         if (rc < 0) {
11264                 fprintf(stderr, "failed to iterate layout\n");
11265                 llapi_layout_free(layout);
11266
11267                 return rc;
11268         }
11269         llapi_layout_free(layout);
11270
11271         return cid.cid_count;
11272 }
11273
11274 static inline int lfs_mirror_copy(int argc, char **argv)
11275 {
11276         int rc = CMD_HELP;
11277         __u16 read_mirror_id = 0;
11278         __u16 ids[128] = { 0 };
11279         int count = 0;
11280         struct llapi_layout *layout = NULL;
11281         struct llapi_resync_comp comp_array[1024] = { { 0 } };
11282         int comp_size = 0;
11283         char *fname;
11284         int fd = 0;
11285         int c;
11286         int i;
11287         ssize_t copied;
11288         struct ll_ioc_lease *ioc = NULL;
11289         struct ll_ioc_lease_id *resync_ioc;
11290         struct option long_opts[] = {
11291         { .val = 'h',   .name = "help",         .has_arg = no_argument },
11292         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
11293         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
11294         { .name = NULL } };
11295         char cmd[PATH_MAX];
11296
11297         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11298         progname = cmd;
11299         while ((c = getopt_long(argc, argv, "hi:o:", long_opts, NULL)) >= 0) {
11300                 char *end;
11301
11302                 switch (c) {
11303                 case 'i': {
11304                         unsigned long int id;
11305
11306                         errno = 0;
11307                         id = strtoul(optarg, &end, 0);
11308                         if (errno != 0 || *end != '\0' || id == 0 ||
11309                             id > UINT16_MAX) {
11310                                 fprintf(stderr,
11311                                         "%s: invalid read mirror ID '%s'\n",
11312                                         progname, optarg);
11313                                 return rc;
11314                         }
11315
11316                         read_mirror_id = (__u16)id;
11317                         break;
11318                 }
11319                 case 'o':
11320                         if (!strcmp(optarg, "-1")) {
11321                                 /* specify all other mirrors */
11322                                 ids[0] = (__u16)-1;
11323                                 count = 1;
11324                         } else {
11325                                 count = parse_mirror_ids((__u16 *)ids,
11326                                                          ARRAY_SIZE(ids),
11327                                                          optarg);
11328                                 if (count < 0)
11329                                         return rc;
11330                         }
11331                         break;
11332                 default:
11333                         fprintf(stderr, "%s: unrecognized option '%s'\n",
11334                                 progname, argv[optind - 1]);
11335                         /* fallthrough */
11336                 case 'h':
11337                         return CMD_HELP;
11338                 }
11339         }
11340
11341         if (argc == optind) {
11342                 fprintf(stderr, "%s %s: no mirrored file provided\n",
11343                         progname, argv[0]);
11344                 return rc;
11345         } else if (argc > optind + 1) {
11346                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
11347                 return rc;
11348         }
11349
11350         if (read_mirror_id == 0) {
11351                 fprintf(stderr,
11352                         "%s %s: no valid read mirror ID %d is provided\n",
11353                         progname, argv[0], read_mirror_id);
11354                 return rc;
11355         }
11356
11357         if (count == 0) {
11358                 fprintf(stderr,
11359                         "%s %s: no write mirror ID is provided\n",
11360                         progname, argv[0]);
11361                 return rc;
11362         }
11363
11364         for (i = 0; i < count; i++) {
11365                 if (read_mirror_id == ids[i]) {
11366                         fprintf(stderr,
11367                         "%s %s: read and write mirror ID cannot be the same\n",
11368                                 progname, argv[0]);
11369                         return rc;
11370                 }
11371         }
11372
11373         /* open mirror file */
11374         fname = argv[optind];
11375
11376         fd = open(fname, O_DIRECT | O_RDWR);
11377         if (fd < 0) {
11378                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11379                         progname, argv[0], fname, strerror(errno));
11380                 return rc;
11381         }
11382
11383         /* write to all other mirrors */
11384         if (ids[0] == (__u16)-1) {
11385                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
11386                 if (count <= 0) {
11387                         rc = count;
11388                         fprintf(stderr,
11389                         "%s %s: failed to get other mirror ids in '%s': %d\n",
11390                                 progname, argv[0], fname, rc);
11391                         goto close_fd;
11392                 }
11393         }
11394
11395         /* verify mirror id */
11396         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
11397         if (rc) {
11398                 fprintf(stderr,
11399                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11400                         progname, argv[0], read_mirror_id, fname);
11401                 goto close_fd;
11402         }
11403
11404         for (i = 0; i < count; i++) {
11405                 rc = verify_mirror_id_by_fd(fd, ids[i]);
11406                 if (rc) {
11407                         fprintf(stderr,
11408                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11409                                 progname, argv[0], ids[i], fname);
11410                         goto close_fd;
11411                 }
11412         }
11413
11414         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
11415         if (!ioc) {
11416                 fprintf(stderr,
11417                         "%s %s: cannot alloc comp id array for ioc: %s\n",
11418                         progname, argv[0], strerror(errno));
11419                 rc = -errno;
11420                 goto close_fd;
11421         }
11422
11423         /* get stale component info */
11424         layout = llapi_layout_get_by_fd(fd, 0);
11425         if (!layout) {
11426                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
11427                         progname, argv[0], fname, strerror(errno));
11428                 rc = -errno;
11429                 goto free_ioc;
11430         }
11431         comp_size = llapi_mirror_find_stale(layout, comp_array,
11432                                             ARRAY_SIZE(comp_array),
11433                                             ids, count);
11434         llapi_layout_free(layout);
11435         if (comp_size < 0) {
11436                 rc = comp_size;
11437                 goto free_ioc;
11438         }
11439
11440         /* prepare target mirror components instantiation */
11441         resync_ioc = (struct ll_ioc_lease_id *)ioc;
11442         resync_ioc->lil_mode = LL_LEASE_WRLCK;
11443         resync_ioc->lil_flags = LL_LEASE_RESYNC;
11444         if (count == 1)
11445                 resync_ioc->lil_mirror_id = ids[0];
11446         else
11447                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
11448         rc = llapi_lease_set(fd, ioc);
11449         if (rc < 0) {
11450                 fprintf(stderr,
11451                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
11452                         progname, argv[0], fname, strerror(errno));
11453                 goto free_ioc;
11454         }
11455
11456         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
11457         if (copied < 0) {
11458                 rc = copied;
11459                 fprintf(stderr, "%s %s: copy error: %d\n",
11460                         progname, argv[0], rc);
11461                 goto free_ioc;
11462         }
11463
11464         fprintf(stdout, "mirror copied successfully: ");
11465         for (i = 0; i < copied; i++)
11466                 fprintf(stdout, "%d ", ids[i]);
11467         fprintf(stdout, "\n");
11468
11469         ioc->lil_mode = LL_LEASE_UNLCK;
11470         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
11471         ioc->lil_count = 0;
11472         for (i = 0; i < comp_size; i++) {
11473                 int j;
11474
11475                 for (j = 0; j < copied; j++) {
11476                         if (comp_array[i].lrc_mirror_id != ids[j])
11477                                 continue;
11478
11479                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
11480                         ioc->lil_count++;
11481                 }
11482         }
11483         rc = llapi_lease_set(fd, ioc);
11484         if (rc <= 0) {
11485                 if (rc == 0)
11486                         rc = -EBUSY;
11487                 fprintf(stderr,
11488                         "%s %s: release lease lock of '%s' failed: %s\n",
11489                         progname, argv[0], fname, strerror(errno));
11490                 goto free_ioc;
11491         }
11492
11493         rc = 0;
11494
11495 free_ioc:
11496         free(ioc);
11497 close_fd:
11498         close(fd);
11499
11500         return rc;
11501 }
11502
11503 /**
11504  * struct verify_chunk - Mirror chunk to be verified.
11505  * @chunk:        [start, end) of the chunk.
11506  * @mirror_count: Number of mirror ids in @mirror_id array.
11507  * @mirror_id:    Array of valid mirror ids that cover the chunk.
11508  */
11509 struct verify_chunk {
11510         struct lu_extent chunk;
11511         unsigned int mirror_count;
11512         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
11513 };
11514
11515 /**
11516  * print_chunks() - Print chunk information.
11517  * @fname:       Mirrored file name.
11518  * @chunks:      Array of chunks.
11519  * @chunk_count: Number of chunks in @chunks array.
11520  *
11521  * This function prints [start, end) of each chunk in @chunks
11522  * for mirrored file @fname, and also prints the valid mirror ids
11523  * that cover the chunk.
11524  *
11525  * Return: void.
11526  */
11527 static inline
11528 void print_chunks(const char *fname, struct verify_chunk *chunks,
11529                   int chunk_count)
11530 {
11531         int i;
11532         int j;
11533
11534         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
11535         for (i = 0; i < chunk_count; i++) {
11536                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
11537
11538                 if (chunks[i].mirror_count == 0)
11539                         fprintf(stdout, "\t[");
11540                 else {
11541                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
11542                         for (j = 1; j < chunks[i].mirror_count; j++)
11543                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
11544                 }
11545                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
11546         }
11547         fprintf(stdout, "\n");
11548 }
11549
11550 /**
11551  * print_checksums() - Print CRC-32 checksum values.
11552  * @chunk: A chunk and its corresponding valid mirror ids.
11553  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
11554  *
11555  * This function prints CRC-32 checksum values on @chunk for
11556  * each valid mirror that covers it.
11557  *
11558  * Return: void.
11559  */
11560 static inline
11561 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
11562 {
11563         int i;
11564
11565         fprintf(stdout,
11566                 "CRC-32 checksum value for chunk "DEXT":\n",
11567                 PEXT(&chunk->chunk));
11568         for (i = 0; i < chunk->mirror_count; i++)
11569                 fprintf(stdout, "Mirror %u:\t%#lx\n",
11570                         chunk->mirror_id[i], crc[i]);
11571         fprintf(stdout, "\n");
11572 }
11573
11574 /**
11575  * filter_mirror_id() - Filter specified mirror ids.
11576  * @chunks:      Array of chunks.
11577  * @chunk_count: Number of chunks in @chunks array.
11578  * @mirror_ids:  Specified mirror ids to be verified.
11579  * @ids_nr:      Number of specified mirror ids.
11580  *
11581  * This function scans valid mirror ids that cover each chunk in @chunks
11582  * and filters specified mirror ids.
11583  *
11584  * Return: void.
11585  */
11586 static inline
11587 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
11588                       __u16 *mirror_ids, int ids_nr)
11589 {
11590         int i;
11591         int j;
11592         int k;
11593         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11594         unsigned int valid_count = 0;
11595
11596         for (i = 0; i < chunk_count; i++) {
11597                 if (chunks[i].mirror_count == 0)
11598                         continue;
11599
11600                 valid_count = 0;
11601                 for (j = 0; j < ids_nr; j++) {
11602                         for (k = 0; k < chunks[i].mirror_count; k++) {
11603                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
11604                                         valid_id[valid_count] = mirror_ids[j];
11605                                         valid_count++;
11606                                         break;
11607                                 }
11608                         }
11609                 }
11610
11611                 memcpy(chunks[i].mirror_id, valid_id,
11612                        sizeof(__u16) * valid_count);
11613                 chunks[i].mirror_count = valid_count;
11614         }
11615 }
11616
11617 /**
11618  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
11619  * @layout:      Mirror component list.
11620  * @chunks:      Array of chunks.
11621  * @chunks_size: Array size of @chunks.
11622  *
11623  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
11624  * to find out chunk segments and store them in @chunks array.
11625  *
11626  * The @mirror_id array in each element of @chunks will store the valid
11627  * mirror ids that cover the chunk. If a mirror component covering the
11628  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
11629  * will not be stored into the @mirror_id array, and the chunk for that
11630  * mirror will not be verified.
11631  *
11632  * The @mirror_count in each element of @chunks will store the number of
11633  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
11634  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
11635  * indicates the chunk is valid in only one mirror. In both cases, the
11636  * chunk will not be verified.
11637  *
11638  * Here is an example:
11639  *
11640  *  0      1M     2M     3M     4M           EOF
11641  *  +------+-------------+--------------------+
11642  *  |      |             |      S             |       mirror1
11643  *  +------+------+------+------+-------------+
11644  *  |             |   S  |   S  |             |       mirror2
11645  *  +-------------+------+------+-------------+
11646  *
11647  * prepared @chunks array will contain 5 elements:
11648  * (([0, 1M), [1, 2], 2),
11649  *  ([1M, 2M), [1, 2], 2),
11650  *  ([2M, 3M), [1], 1),
11651  *  ([3M, 4M], [], 0),
11652  *  ([4M, EOF), [2], 1))
11653  *
11654  * Return: the actual array size of @chunks on success
11655  *         or a negative error code on failure.
11656  */
11657 static inline
11658 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
11659                              struct verify_chunk *chunks,
11660                              size_t chunks_size)
11661 {
11662         uint64_t start;
11663         uint64_t end;
11664         uint32_t mirror_id;
11665         uint32_t flags;
11666         int idx = 0;
11667         int i = 0;
11668         int rc = 0;
11669
11670         memset(chunks, 0, sizeof(*chunks) * chunks_size);
11671
11672         while (1) {
11673                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
11674                 if (rc < 0) {
11675                         fprintf(stderr,
11676                                 "%s: move to the first layout component: %s.\n",
11677                                 progname, strerror(errno));
11678                         goto error;
11679                 }
11680
11681                 i = 0;
11682                 rc = 0;
11683                 chunks[idx].chunk.e_end = LUSTRE_EOF;
11684                 while (rc == 0) {
11685                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
11686                         if (rc < 0) {
11687                                 fprintf(stderr,
11688                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
11689                                         progname, strerror(errno));
11690                                 goto error;
11691                         }
11692
11693                         if (start > chunks[idx].chunk.e_start ||
11694                             end <= chunks[idx].chunk.e_start)
11695                                 goto next;
11696
11697                         if (end < chunks[idx].chunk.e_end)
11698                                 chunks[idx].chunk.e_end = end;
11699
11700                         rc = llapi_layout_comp_flags_get(layout, &flags);
11701                         if (rc < 0) {
11702                                 fprintf(stderr,
11703                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
11704                                         progname, strerror(errno));
11705                                 goto error;
11706                         }
11707
11708                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
11709                                 goto next;
11710
11711                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
11712                         if (rc < 0) {
11713                                 fprintf(stderr,
11714                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
11715                                         progname, strerror(errno));
11716                                 goto error;
11717                         }
11718
11719                         chunks[idx].mirror_id[i] = mirror_id;
11720                         i++;
11721                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
11722                                 fprintf(stderr,
11723                                         "%s: mirror_id array is too small.\n",
11724                                         progname);
11725                                 rc = -EINVAL;
11726                                 goto error;
11727                         }
11728
11729 next:
11730                         rc = llapi_layout_comp_use(layout,
11731                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
11732                         if (rc < 0) {
11733                                 fprintf(stderr,
11734                                         "%s: move to the next layout component: %s.\n",
11735                                         progname, strerror(errno));
11736                                 goto error;
11737                         }
11738                 } /* loop through all components */
11739
11740                 chunks[idx].mirror_count = i;
11741
11742                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
11743                         break;
11744
11745                 idx++;
11746                 if (idx >= chunks_size) {
11747                         fprintf(stderr, "%s: chunks array is too small.\n",
11748                                 progname);
11749                         rc = -EINVAL;
11750                         goto error;
11751                 }
11752
11753                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
11754         }
11755
11756 error:
11757         return rc < 0 ? rc : idx + 1;
11758 }
11759
11760 /**
11761  * lfs_mirror_verify_chunk() - Verify a chunk.
11762  * @fd:        File descriptor of the mirrored file.
11763  * @file_size: Size of the mirrored file.
11764  * @chunk:     A chunk and its corresponding valid mirror ids.
11765  * @verbose:   Verbose mode.
11766  *
11767  * This function verifies a @chunk contains exactly the same data
11768  * ammong the mirrors that cover it.
11769  *
11770  * If @verbose is specified, then the function will print where the
11771  * differences are if the data do not match. Otherwise, it will
11772  * just return an error in that case.
11773  *
11774  * Return: 0 on success or a negative error code on failure.
11775  */
11776 static inline
11777 int lfs_mirror_verify_chunk(int fd, size_t file_size,
11778                             struct verify_chunk *chunk, int verbose)
11779 {
11780         const size_t buflen = 4 * 1024 * 1024; /* 4M */
11781         void *buf;
11782         size_t page_size = sysconf(_SC_PAGESIZE);
11783         ssize_t bytes_read;
11784         ssize_t bytes_done;
11785         size_t count;
11786         off_t pos;
11787         unsigned long crc;
11788         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11789         int i;
11790         int rc = 0;
11791
11792         if (file_size == 0)
11793                 return 0;
11794
11795         rc = posix_memalign(&buf, page_size, buflen);
11796         if (rc) /* error code is returned directly */
11797                 return -rc;
11798
11799         if (verbose > 1) {
11800                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11801                         PEXT(&chunk->chunk));
11802                 for (i = 0; i < chunk->mirror_count; i++)
11803                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11804                 fprintf(stdout, "\n");
11805         }
11806
11807         bytes_done = 0;
11808         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
11809         pos = chunk->chunk.e_start;
11810         while (bytes_done < count) {
11811                 /* compute initial CRC-32 checksum */
11812                 crc = crc32(0L, Z_NULL, 0);
11813                 memset(crc_array, 0, sizeof(crc_array));
11814
11815                 bytes_read = 0;
11816                 for (i = 0; i < chunk->mirror_count; i++) {
11817                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
11818                                                        buf, buflen, pos);
11819                         if (bytes_read < 0) {
11820                                 rc = bytes_read;
11821                                 fprintf(stderr,
11822                                         "%s: failed to read data from mirror %u: %s.\n",
11823                                         progname, chunk->mirror_id[i],
11824                                         strerror(-rc));
11825                                 goto error;
11826                         }
11827
11828                         /* compute new CRC-32 checksum */
11829                         crc_array[i] = crc32(crc, buf, bytes_read);
11830                 }
11831
11832                 if (verbose)
11833                         print_checksums(chunk, crc_array);
11834
11835                 /* compare CRC-32 checksum values */
11836                 for (i = 1; i < chunk->mirror_count; i++) {
11837                         if (crc_array[i] != crc_array[0]) {
11838                                 rc = -EINVAL;
11839
11840                                 fprintf(stderr,
11841                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
11842                                         progname, PEXT(&chunk->chunk),
11843                                         chunk->mirror_id[0],
11844                                         chunk->mirror_id[i]);
11845                         }
11846                 }
11847
11848                 pos += bytes_read;
11849                 bytes_done += bytes_read;
11850         }
11851
11852         if (verbose > 1 && rc == 0) {
11853                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11854                         PEXT(&chunk->chunk));
11855                 for (i = 0; i < chunk->mirror_count; i++)
11856                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11857                 fprintf(stdout, " PASS\n\n");
11858         }
11859
11860 error:
11861         free(buf);
11862         return rc;
11863 }
11864
11865 /**
11866  * lfs_mirror_verify_file() - Verify a mirrored file.
11867  * @fname:      Mirrored file name.
11868  * @mirror_ids: Specified mirror ids to be verified.
11869  * @ids_nr:     Number of specified mirror ids.
11870  * @verbose:    Verbose mode.
11871  *
11872  * This function verifies that each SYNC mirror of a mirrored file
11873  * specified by @fname contains exactly the same data.
11874  *
11875  * If @mirror_ids is specified, then the function will verify the
11876  * mirrors specified by @mirror_ids contain exactly the same data.
11877  *
11878  * If @verbose is specified, then the function will print where the
11879  * differences are if the data do not match. Otherwise, it will
11880  * just return an error in that case.
11881  *
11882  * Return: 0 on success or a negative error code on failure.
11883  */
11884 static inline
11885 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
11886                            int verbose)
11887 {
11888         struct verify_chunk chunks_array[1024] = { };
11889         struct llapi_layout *layout = NULL;
11890         struct stat stbuf;
11891         uint32_t flr_state;
11892         int fd;
11893         int chunk_count = 0;
11894         int idx = 0;
11895         int rc = 0;
11896         int rc1 = 0;
11897         int rc2 = 0;
11898
11899         if (stat(fname, &stbuf) < 0) {
11900                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
11901                         progname, fname, strerror(errno));
11902                 rc = -errno;
11903                 goto error;
11904         }
11905
11906         if (!S_ISREG(stbuf.st_mode)) {
11907                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
11908                         progname, fname);
11909                 rc = -EINVAL;
11910                 goto error;
11911         }
11912
11913         if (stbuf.st_size == 0) {
11914                 if (verbose)
11915                         fprintf(stdout, "%s: '%s' file size is 0.\n",
11916                                 progname, fname);
11917                 rc = 0;
11918                 goto error;
11919         }
11920
11921         fd = open(fname, O_DIRECT | O_RDONLY);
11922         if (fd < 0) {
11923                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
11924                         progname, fname, strerror(errno));
11925                 rc = -errno;
11926                 goto error;
11927         }
11928
11929         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
11930         if (rc < 0) {
11931                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
11932                         progname, fname, strerror(errno));
11933                 goto close_fd;
11934         }
11935
11936         layout = llapi_layout_get_by_fd(fd, 0);
11937         if (!layout) {
11938                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
11939                         progname, fname, strerror(errno));
11940                 rc = -errno;
11941                 llapi_lease_release(fd);
11942                 goto close_fd;
11943         }
11944
11945         rc = llapi_layout_flags_get(layout, &flr_state);
11946         if (rc < 0) {
11947                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
11948                         progname, fname, strerror(errno));
11949                 rc = -errno;
11950                 goto free_layout;
11951         }
11952
11953         flr_state &= LCM_FL_FLR_MASK;
11954         switch (flr_state) {
11955         case LCM_FL_NONE:
11956                 rc = -EINVAL;
11957                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
11958                         progname, fname, llapi_layout_flags_string(flr_state));
11959                 goto free_layout;
11960         default:
11961                 break;
11962         }
11963
11964         /* find out mirror chunks to be verified */
11965         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
11966                                                ARRAY_SIZE(chunks_array));
11967         if (chunk_count < 0) {
11968                 rc = chunk_count;
11969                 goto free_layout;
11970         }
11971
11972         if (ids_nr > 0)
11973                 /* filter specified mirror ids */
11974                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
11975
11976         if (verbose > 2)
11977                 print_chunks(fname, chunks_array, chunk_count);
11978
11979         for (idx = 0; idx < chunk_count; idx++) {
11980                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
11981                         if (verbose)
11982                                 fprintf(stdout,
11983                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
11984                                         progname, fname,
11985                                         PEXT(&chunks_array[idx].chunk),
11986                                         (unsigned long long)stbuf.st_size);
11987                         break;
11988                 }
11989
11990                 if (chunks_array[idx].mirror_count == 0) {
11991                         fprintf(stderr,
11992                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
11993                                 progname, fname,
11994                                 PEXT(&chunks_array[idx].chunk));
11995                         if (verbose) {
11996                                 fprintf(stderr, "skipped\n");
11997                                 continue;
11998                         }
11999                         rc = -EINVAL;
12000                         fprintf(stderr, "failed\n");
12001                         goto free_layout;
12002                 }
12003
12004                 if (chunks_array[idx].mirror_count == 1) {
12005                         if (verbose)
12006                                 fprintf(stdout,
12007                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
12008                                         progname, fname,
12009                                         PEXT(&chunks_array[idx].chunk),
12010                                         chunks_array[idx].mirror_id[0]);
12011                         continue;
12012                 }
12013
12014                 rc = llapi_lease_check(fd);
12015                 if (rc != LL_LEASE_RDLCK) {
12016                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
12017                                 progname, fname);
12018                         goto free_layout;
12019                 }
12020
12021                 /* verify one chunk */
12022                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
12023                                               &chunks_array[idx], verbose);
12024                 if (rc1 < 0) {
12025                         rc2 = rc1;
12026                         if (!verbose) {
12027                                 rc = rc1;
12028                                 goto free_layout;
12029                         }
12030                 }
12031         }
12032
12033         if (rc2 < 0)
12034                 rc = rc2;
12035
12036 free_layout:
12037         llapi_layout_free(layout);
12038         llapi_lease_release(fd);
12039 close_fd:
12040         close(fd);
12041 error:
12042         return rc;
12043 }
12044
12045 /**
12046  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
12047  * @argc: The count of lfs mirror verify command line arguments.
12048  * @argv: Array of strings for lfs mirror verify command line arguments.
12049  *
12050  * This function parses lfs mirror verify command and verifies the
12051  * specified mirrored file(s).
12052  *
12053  * Return: 0 on success or a negative error code on failure.
12054  */
12055 static inline int lfs_mirror_verify(int argc, char **argv)
12056 {
12057         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
12058         int ids_nr = 0;
12059         int c;
12060         int verbose = 0;
12061         int rc = 0;
12062         int rc1 = 0;
12063         char cmd[PATH_MAX];
12064
12065         struct option long_opts[] = {
12066         { .val = 'h',   .name = "help",         .has_arg = no_argument },
12067         { .val = 'o',   .name = "only",         .has_arg = required_argument },
12068         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
12069         { .name = NULL } };
12070
12071         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12072         progname = cmd;
12073         while ((c = getopt_long(argc, argv, "ho:v", long_opts, NULL)) >= 0) {
12074                 switch (c) {
12075                 case 'o':
12076                         rc = parse_mirror_ids(mirror_ids,
12077                                               ARRAY_SIZE(mirror_ids),
12078                                               optarg);
12079                         if (rc < 0) {
12080                                 fprintf(stderr,
12081                                         "%s: bad mirror ids '%s'.\n",
12082                                         progname, optarg);
12083                                 goto error;
12084                         }
12085                         ids_nr = rc;
12086                         if (ids_nr < 2) {
12087                                 fprintf(stderr,
12088                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
12089                                         progname);
12090                                 rc = CMD_HELP;
12091                                 goto error;
12092                         }
12093                         break;
12094                 case 'v':
12095                         verbose++;
12096                         break;
12097                 default:
12098                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12099                                 progname, argv[optind - 1]);
12100                         /* fallthrough */
12101                 case 'h':
12102                         rc = CMD_HELP;
12103                         goto error;
12104                 }
12105         }
12106
12107         if (argc == optind) {
12108                 fprintf(stderr, "%s: no file name given.\n", progname);
12109                 rc = CMD_HELP;
12110                 goto error;
12111         }
12112
12113         if (ids_nr > 0 && argc > optind + 1) {
12114                 fprintf(stderr,
12115                         "%s: '--only' cannot be used upon multiple files.\n",
12116                         progname);
12117                 rc = CMD_HELP;
12118                 goto error;
12119         }
12120
12121         if (ids_nr > 0) {
12122                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
12123                 if (rc < 0)
12124                         goto error;
12125         }
12126
12127         rc = 0;
12128         for (; optind < argc; optind++) {
12129                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
12130                                              verbose);
12131                 if (rc1 < 0)
12132                         rc = rc1;
12133         }
12134 error:
12135         return rc;
12136 }
12137
12138 /**
12139  * lfs_mirror() - Parse and execute lfs mirror commands.
12140  * @argc: The count of lfs mirror command line arguments.
12141  * @argv: Array of strings for lfs mirror command line arguments.
12142  *
12143  * This function parses lfs mirror commands and performs the
12144  * corresponding functions specified in mirror_cmdlist[].
12145  *
12146  * Return: 0 on success or an error code on failure.
12147  */
12148 static int lfs_mirror(int argc, char **argv)
12149 {
12150         char cmd[PATH_MAX];
12151         int rc = 0;
12152
12153         setlinebuf(stdout);
12154
12155         Parser_init("lfs-mirror > ", mirror_cmdlist);
12156
12157         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12158         progname = cmd;
12159         program_invocation_short_name = cmd;
12160         if (argc > 1)
12161                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
12162         else
12163                 rc = Parser_commands();
12164
12165         return rc < 0 ? -rc : rc;
12166 }
12167
12168 static void lustre_som_swab(struct lustre_som_attrs *attrs)
12169 {
12170 #if __BYTE_ORDER == __BIG_ENDIAN
12171         __swab16s(&attrs->lsa_valid);
12172         __swab64s(&attrs->lsa_size);
12173         __swab64s(&attrs->lsa_blocks);
12174 #endif
12175 }
12176
12177 enum lfs_som_type {
12178         LFS_SOM_SIZE = 0x1,
12179         LFS_SOM_BLOCKS = 0x2,
12180         LFS_SOM_FLAGS = 0x4,
12181         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
12182                            LFS_SOM_FLAGS,
12183 };
12184
12185 static int lfs_getsom(int argc, char **argv)
12186 {
12187         const char *path;
12188         struct lustre_som_attrs *attrs;
12189         char buf[sizeof(*attrs) + 64];
12190         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
12191         int rc = 0, c;
12192
12193         while ((c = getopt(argc, argv, "bfhs")) != -1) {
12194                 switch (c) {
12195                 case 'b':
12196                         type = LFS_SOM_BLOCKS;
12197                         break;
12198                 case 'f':
12199                         type = LFS_SOM_FLAGS;
12200                         break;
12201                 case 's':
12202                         type = LFS_SOM_SIZE;
12203                         break;
12204                 default:
12205                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12206                                 progname, argv[optind - 1]);
12207                         /* fallthrough */
12208                 case 'h':
12209                         return CMD_HELP;
12210                 }
12211         }
12212
12213         argc -= optind;
12214         argv += optind;
12215
12216         if (argc != 1) {
12217                 fprintf(stderr, "%s: %s\n",
12218                         progname, argc == 0 ? "miss file target" :
12219                         "input more than 2 files");
12220                 return CMD_HELP;
12221         }
12222
12223         path = argv[0];
12224         attrs = (void *)buf;
12225         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
12226         if (rc < 0) {
12227                 rc = -errno;
12228                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
12229                         argv[0], strerror(errno), errno);
12230                 return rc;
12231         }
12232
12233         lustre_som_swab(attrs);
12234
12235         switch (type) {
12236         case LFS_SOM_ATTR_ALL:
12237                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
12238                        path, (unsigned long long)attrs->lsa_size,
12239                        (unsigned long long)attrs->lsa_blocks,
12240                        attrs->lsa_valid);
12241                 break;
12242         case LFS_SOM_SIZE:
12243                 printf("%llu\n", (unsigned long long)attrs->lsa_size);
12244                 break;
12245         case LFS_SOM_BLOCKS:
12246                 printf("%llu\n", (unsigned long long)attrs->lsa_blocks);
12247                 break;
12248         case LFS_SOM_FLAGS:
12249                 printf("%x\n", attrs->lsa_valid);
12250                 break;
12251         default:
12252                 fprintf(stderr, "%s: unknown option\n", progname);
12253                 return CMD_HELP;
12254         }
12255
12256         return 0;
12257 }
12258
12259 /**
12260  * lfs_mirror_list_commands() - List lfs mirror commands.
12261  * @argc: The count of command line arguments.
12262  * @argv: Array of strings for command line arguments.
12263  *
12264  * This function lists lfs mirror commands defined in mirror_cmdlist[].
12265  *
12266  * Return: 0 on success.
12267  */
12268 static int lfs_mirror_list_commands(int argc, char **argv)
12269 {
12270         char buffer[81] = "";
12271
12272         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
12273                              NULL, 0, 4);
12274
12275         return 0;
12276 }
12277
12278 static int lfs_pcc_attach(int argc, char **argv)
12279 {
12280         struct option long_opts[] = {
12281         { .val = 'h',   .name = "help", .has_arg = no_argument },
12282         { .val = 'i',   .name = "id",   .has_arg = required_argument },
12283         { .name = NULL } };
12284         int c;
12285         int rc = 0;
12286         __u32 archive_id = 0;
12287         const char *path;
12288         char *end;
12289         char fullpath[PATH_MAX];
12290         enum lu_pcc_type type = LU_PCC_READWRITE;
12291
12292         optind = 0;
12293         while ((c = getopt_long(argc, argv, "hi:",
12294                                 long_opts, NULL)) != -1) {
12295                 switch (c) {
12296                 case 'i':
12297                         errno = 0;
12298                         archive_id = strtoul(optarg, &end, 0);
12299                         if (errno != 0 || *end != '\0' ||
12300                             archive_id == 0 || archive_id > UINT32_MAX) {
12301                                 fprintf(stderr,
12302                                         "error: %s: bad archive ID '%s'\n",
12303                                         progname, optarg);
12304                                 return CMD_HELP;
12305                         }
12306                         break;
12307                 default:
12308                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12309                                 progname, argv[optind - 1]);
12310                         /* fallthrough */
12311                 case 'h':
12312                         return CMD_HELP;
12313                 }
12314         }
12315
12316         if (archive_id == 0) {
12317                 fprintf(stderr, "%s: must specify attach ID\n", argv[0]);
12318                 return CMD_HELP;
12319         }
12320
12321         if (argc <= optind) {
12322                 fprintf(stderr, "%s: must specify one or more file names\n",
12323                         argv[0]);
12324                 return CMD_HELP;
12325         }
12326
12327         while (optind < argc) {
12328                 int rc2;
12329
12330                 path = argv[optind++];
12331                 if (!realpath(path, fullpath)) {
12332                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12333                                 argv[0], path, strerror(errno));
12334                         if (rc == 0)
12335                                 rc = -EINVAL;
12336                         continue;
12337                 }
12338
12339                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
12340                 if (rc2 < 0) {
12341                         fprintf(stderr,
12342                                 "%s: cannot attach '%s' to PCC with archive ID '%u': %s\n",
12343                                 argv[0], path, archive_id, strerror(-rc2));
12344                         if (rc == 0)
12345                                 rc = rc2;
12346                 }
12347         }
12348         return rc;
12349 }
12350
12351 static int lfs_pcc_attach_fid(int argc, char **argv)
12352 {
12353         struct option long_opts[] = {
12354         { .val = 'h',   .name = "help", .has_arg = no_argument },
12355         { .val = 'i',   .name = "id",   .has_arg = required_argument },
12356         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
12357         { .name = NULL } };
12358         int c;
12359         int rc = 0;
12360         __u32 archive_id = 0;
12361         char *end;
12362         const char *mntpath = NULL;
12363         const char *fidstr;
12364         enum lu_pcc_type type = LU_PCC_READWRITE;
12365
12366         optind = 0;
12367         while ((c = getopt_long(argc, argv, "hi:m:",
12368                                 long_opts, NULL)) != -1) {
12369                 switch (c) {
12370                 case 'i':
12371                         errno = 0;
12372                         archive_id = strtoul(optarg, &end, 0);
12373                         if (errno != 0 || *end != '\0' ||
12374                             archive_id > UINT32_MAX) {
12375                                 fprintf(stderr,
12376                                         "error: %s: bad archive ID '%s'\n",
12377                                         argv[0], optarg);
12378                                 return CMD_HELP;
12379                         }
12380                         break;
12381                 case 'm':
12382                         mntpath = optarg;
12383                         break;
12384                 default:
12385                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12386                                 progname, argv[optind - 1]);
12387                         /* fallthrough */
12388                 case 'h':
12389                         return CMD_HELP;
12390                 }
12391         }
12392
12393         if (archive_id == 0) {
12394                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
12395                 return CMD_HELP;
12396         }
12397
12398         if (!mntpath) {
12399                 fprintf(stderr, "%s: must specify Lustre mount point\n",
12400                         argv[0]);
12401                 return CMD_HELP;
12402         }
12403
12404         if (argc <= optind) {
12405                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
12406                 return CMD_HELP;
12407         }
12408
12409         while (optind < argc) {
12410                 int rc2;
12411
12412                 fidstr = argv[optind++];
12413
12414                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
12415                                                archive_id, type);
12416                 if (rc2 < 0) {
12417                         fprintf(stderr,
12418                                 "%s: cannot attach '%s' on '%s' to PCC with archive ID '%u': %s\n",
12419                                 argv[0], fidstr, mntpath, archive_id,
12420                                 strerror(rc2));
12421                 }
12422                 if (rc == 0 && rc2 < 0)
12423                         rc = rc2;
12424         }
12425         return rc;
12426 }
12427
12428 static int lfs_pcc_detach(int argc, char **argv)
12429 {
12430         struct option long_opts[] = {
12431         { .val = 'h',   .name = "help", .has_arg = no_argument },
12432         { .val = 'k',   .name = "keep", .has_arg = no_argument },
12433         { .name = NULL } };
12434         int c;
12435         int rc = 0;
12436         const char *path;
12437         char fullpath[PATH_MAX];
12438         __u32 detach_opt = PCC_DETACH_OPT_UNCACHE;
12439
12440         optind = 0;
12441         while ((c = getopt_long(argc, argv, "hk",
12442                                 long_opts, NULL)) != -1) {
12443                 switch (c) {
12444                 case 'k':
12445                         detach_opt = PCC_DETACH_OPT_NONE;
12446                         break;
12447                 default:
12448                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12449                                 progname, argv[optind - 1]);
12450                         /* fallthrough */
12451                 case 'h':
12452                         return CMD_HELP;
12453                 }
12454         }
12455
12456         while (optind < argc) {
12457                 int rc2;
12458
12459                 path = argv[optind++];
12460                 if (!realpath(path, fullpath)) {
12461                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12462                                 argv[0], path, strerror(errno));
12463                         if (rc == 0)
12464                                 rc = -EINVAL;
12465                         continue;
12466                 }
12467
12468                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
12469                 if (rc2 < 0) {
12470                         rc2 = -errno;
12471                         fprintf(stderr,
12472                                 "%s: cannot detach '%s' from PCC: %s\n",
12473                                 argv[0], path, strerror(errno));
12474                         if (rc == 0)
12475                                 rc = rc2;
12476                 }
12477         }
12478         return rc;
12479 }
12480
12481 static int lfs_pcc_detach_fid(int argc, char **argv)
12482 {
12483         struct option long_opts[] = {
12484         { .val = 'h',   .name = "help", .has_arg = no_argument },
12485         { .val = 'k',   .name = "keep", .has_arg = no_argument },
12486         { .name = NULL } };
12487         int c;
12488         int rc = 0;
12489         const char *fid;
12490         const char *mntpath;
12491         __u32 detach_opt = PCC_DETACH_OPT_UNCACHE;
12492
12493         optind = 0;
12494         while ((c = getopt_long(argc, argv, "hk",
12495                                 long_opts, NULL)) != -1) {
12496                 switch (c) {
12497                 case 'k':
12498                         detach_opt = PCC_DETACH_OPT_NONE;
12499                         break;
12500                 default:
12501                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12502                                 progname, argv[optind - 1]);
12503                         /* fallthrough */
12504                 case 'h':
12505                         return CMD_HELP;
12506                 }
12507         }
12508
12509         mntpath = argv[optind++];
12510
12511         while (optind < argc) {
12512                 int rc2;
12513
12514                 fid = argv[optind++];
12515
12516                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
12517                 if (rc2 < 0) {
12518                         fprintf(stderr,
12519                                 "%s: cannot detach '%s' on '%s' from PCC: %s\n",
12520                                 argv[0], fid, mntpath, strerror(-rc2));
12521                         if (rc == 0)
12522                                 rc = rc2;
12523                 }
12524         }
12525         return rc;
12526 }
12527
12528 static int lfs_pcc_state(int argc, char **argv)
12529 {
12530         int rc = 0;
12531         const char *path;
12532         char fullpath[PATH_MAX];
12533         struct lu_pcc_state state;
12534
12535         optind = 1;
12536
12537         if (argc <= 1) {
12538                 fprintf(stderr, "%s: must specify one or more file names\n",
12539                         progname);
12540                 return CMD_HELP;
12541         }
12542
12543         while (optind < argc) {
12544                 int rc2;
12545
12546                 path = argv[optind++];
12547                 if (!realpath(path, fullpath)) {
12548                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12549                                 argv[0], path, strerror(errno));
12550                         if (rc == 0)
12551                                 rc = -EINVAL;
12552                         continue;
12553                 }
12554
12555                 rc2 = llapi_pcc_state_get(fullpath, &state);
12556                 if (rc2 < 0) {
12557                         if (rc == 0)
12558                                 rc = rc2;
12559                         fprintf(stderr,
12560                                 "%s: cannot get PCC state of '%s': %s\n",
12561                                 argv[0], path, strerror(-rc2));
12562                         continue;
12563                 }
12564
12565                 printf("file: %s", path);
12566                 printf(", type: %s", pcc_type2string(state.pccs_type));
12567                 if (state.pccs_type == LU_PCC_NONE &&
12568                     state.pccs_open_count == 0) {
12569                         printf("\n");
12570                         continue;
12571                 }
12572
12573                 printf(", PCC file: %s", state.pccs_path);
12574                 printf(", user number: %u", state.pccs_open_count);
12575                 printf(", flags: %x", state.pccs_flags);
12576                 printf("\n");
12577         }
12578         return rc;
12579 }
12580
12581 /**
12582  * lfs_pcc_list_commands() - List lfs pcc commands.
12583  * @argc: The count of command line arguments.
12584  * @argv: Array of strings for command line arguments.
12585  *
12586  * This function lists lfs pcc commands defined in pcc_cmdlist[].
12587  *
12588  * Return: 0 on success.
12589  */
12590 static int lfs_pcc_list_commands(int argc, char **argv)
12591 {
12592         char buffer[81] = "";
12593
12594         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
12595                              NULL, 0, 4);
12596
12597         return 0;
12598 }
12599
12600 /**
12601  * lfs_pcc() - Parse and execute lfs pcc commands.
12602  * @argc: The count of lfs pcc command line arguments.
12603  * @argv: Array of strings for lfs pcc command line arguments.
12604  *
12605  * This function parses lfs pcc commands and performs the
12606  * corresponding functions specified in pcc_cmdlist[].
12607  *
12608  * Return: 0 on success or an error code on failure.
12609  */
12610 static int lfs_pcc(int argc, char **argv)
12611 {
12612         char cmd[PATH_MAX];
12613         int rc = 0;
12614
12615         setlinebuf(stdout);
12616
12617         Parser_init("lfs-pcc > ", pcc_cmdlist);
12618
12619         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12620         progname = cmd;
12621         program_invocation_short_name = cmd;
12622         if (argc > 1)
12623                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
12624         else
12625                 rc = Parser_commands();
12626
12627         return rc < 0 ? -rc : rc;
12628 }
12629
12630 static int lfs_list_commands(int argc, char **argv)
12631 {
12632         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
12633
12634         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
12635
12636         return 0;
12637 }
12638
12639 int main(int argc, char **argv)
12640 {
12641         int rc;
12642
12643         /* Ensure that liblustreapi constructor has run */
12644         if (!llapi_liblustreapi_initialized())
12645                 fprintf(stderr, "liblustreapi was not properly initialized\n");
12646
12647         setlinebuf(stdout);
12648         opterr = 0;
12649
12650         Parser_init("lfs > ", cmdlist);
12651
12652         progname = program_invocation_short_name; /* Used in error messages */
12653         if (argc > 1) {
12654                 llapi_set_command_name(argv[1]);
12655                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
12656                 llapi_clear_command_name();
12657         } else {
12658                 rc = Parser_commands();
12659         }
12660
12661         return rc < 0 ? -rc : rc;
12662 }
12663
12664 #ifdef _LUSTRE_IDL_H_
12665 /* Everything we need here should be included by lustreapi.h. */
12666 # error "lfs should not depend on lustre_idl.h"
12667 #endif /* _LUSTRE_IDL_H_ */