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  * Lustre is a trademark of Sun Microsystems, Inc.
  31  *
  32  * lustre/utils/lfs.c
  33  *
  34  * Author: Peter J. Braam <braam@clusterfs.com>
  35  * Author: Phil Schwan <phil@clusterfs.com>
  36  * Author: Robert Read <rread@clusterfs.com>
  37  */
  38
  39 /* for O_DIRECTORY */
  40 #ifndef _GNU_SOURCE
  41 #define _GNU_SOURCE
  42 #endif
  43
  44 #include <stdlib.h>
  45 #include <stdio.h>
  46 #include <inttypes.h>
  47 #include <getopt.h>
  48 #include <string.h>
  49 #include <mntent.h>
  50 #include <unistd.h>
  51 #include <errno.h>
  52 #include <err.h>
  53 #include <pwd.h>
  54 #include <grp.h>
  55 #include <sys/ioctl.h>
  56 #include <sys/quota.h>
  57 #include <sys/time.h>
  58 #include <sys/types.h>
  59 #include <sys/stat.h>
  60 #include <sys/param.h>
  61 #include <sys/xattr.h>
  62 #include <fcntl.h>
  63 #include <dirent.h>
  64 #include <time.h>
  65 #include <ctype.h>
  66 #include <zlib.h>
  67 #include <libgen.h>
  68 #include <asm/byteorder.h>
  69 #include "lfs_project.h"
  70
  71 #include <libcfs/util/string.h>
  72 #include <libcfs/util/ioctl.h>
  73 #include <libcfs/util/parser.h>
  74 #include <libcfs/util/string.h>
  75 #include <lustre/lustreapi.h>
  76 #include <linux/lustre/lustre_ver.h>
  77 #include <linux/lustre/lustre_param.h>
  78 #include <linux/lnet/nidstr.h>
  79 #include <lnetconfig/cyaml.h>
  80 #include "lstddef.h"
  81
  82 /* all functions */
  83 static int lfs_find(int argc, char **argv);
  84 static int lfs_getstripe(int argc, char **argv);
  85 static int lfs_getdirstripe(int argc, char **argv);
  86 static int lfs_setdirstripe(int argc, char **argv);
  87 static int lfs_rmentry(int argc, char **argv);
  88 static int lfs_unlink_foreign(int argc, char **argv);
  89 static int lfs_osts(int argc, char **argv);
  90 static int lfs_mdts(int argc, char **argv);
  91 static int lfs_df(int argc, char **argv);
  92 static int lfs_getname(int argc, char **argv);
  93 static int lfs_check(int argc, char **argv);
  94 #ifdef HAVE_SYS_QUOTA_H
  95 static int lfs_setquota(int argc, char **argv);
  96 static int lfs_quota(int argc, char **argv);
  97 static int lfs_project(int argc, char **argv);
  98 #endif
  99 static int lfs_flushctx(int argc, char **argv);
 100 static int lfs_poollist(int argc, char **argv);
 101 static int lfs_changelog(int argc, char **argv);
 102 static int lfs_changelog_clear(int argc, char **argv);
 103 static int lfs_fid2path(int argc, char **argv);
 104 static int lfs_path2fid(int argc, char **argv);
 105 static int lfs_rmfid(int argc, char **argv);
 106 static int lfs_data_version(int argc, char **argv);
 107 static int lfs_hsm_state(int argc, char **argv);
 108 static int lfs_hsm_set(int argc, char **argv);
 109 static int lfs_hsm_clear(int argc, char **argv);
 110 static int lfs_hsm_action(int argc, char **argv);
 111 static int lfs_hsm_archive(int argc, char **argv);
 112 static int lfs_hsm_restore(int argc, char **argv);
 113 static int lfs_hsm_release(int argc, char **argv);
 114 static int lfs_hsm_remove(int argc, char **argv);
 115 static int lfs_hsm_cancel(int argc, char **argv);
 116 static int lfs_swap_layouts(int argc, char **argv);
 117 static int lfs_mv(int argc, char **argv);
 118 static int lfs_ladvise(int argc, char **argv);
 119 static int lfs_getsom(int argc, char **argv);
 120 static int lfs_heat_get(int argc, char **argv);
 121 static int lfs_heat_set(int argc, char **argv);
 122 static int lfs_mirror(int argc, char **argv);
 123 static int lfs_mirror_list_commands(int argc, char **argv);
 124 static int lfs_list_commands(int argc, char **argv);
 125 static inline int lfs_mirror_resync(int argc, char **argv);
 126 static inline int lfs_mirror_verify(int argc, char **argv);
 127 static inline int lfs_mirror_read(int argc, char **argv);
 128 static inline int lfs_mirror_write(int argc, char **argv);
 129 static inline int lfs_mirror_copy(int argc, char **argv);
 130 static int lfs_pcc_attach(int argc, char **argv);
 131 static int lfs_pcc_attach_fid(int argc, char **argv);
 132 static int lfs_pcc_detach(int argc, char **argv);
 133 static int lfs_pcc_detach_fid(int argc, char **argv);
 134 static int lfs_pcc_state(int argc, char **argv);
 135 static int lfs_pcc(int argc, char **argv);
 136 static int lfs_pcc_list_commands(int argc, char **argv);
 137 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
 138                               __u64 migration_flags,
 139                               struct llapi_stripe_param *param,
 140                               struct llapi_layout *layout);
 141
 142 struct pool_to_id_cbdata {
 143         const char *pool;
 144         __u32 id;
 145 };
 146 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata);
 147 static int find_mirror_id_by_pool(struct llapi_layout *layout, void *cbdata);
 148
 149 enum setstripe_origin {
 150         SO_SETSTRIPE,
 151         SO_MIGRATE,
 152         SO_MIGRATE_MDT,
 153         SO_MIRROR_CREATE,
 154         SO_MIRROR_EXTEND,
 155         SO_MIRROR_SPLIT,
 156         SO_MIRROR_DELETE,
 157 };
 158
 159 static int lfs_setstripe_internal(int argc, char **argv,
 160                                   enum setstripe_origin opc);
 161
 162 static inline int lfs_setstripe(int argc, char **argv)
 163 {
 164         return lfs_setstripe_internal(argc, argv, SO_SETSTRIPE);
 165 }
 166
 167 static inline int lfs_setstripe_migrate(int argc, char **argv)
 168 {
 169         return lfs_setstripe_internal(argc, argv, SO_MIGRATE);
 170 }
 171
 172 static inline int lfs_mirror_create(int argc, char **argv)
 173 {
 174         return lfs_setstripe_internal(argc, argv, SO_MIRROR_CREATE);
 175 }
 176
 177 static inline int lfs_mirror_extend(int argc, char **argv)
 178 {
 179         return lfs_setstripe_internal(argc, argv, SO_MIRROR_EXTEND);
 180 }
 181
 182 static inline int lfs_mirror_split(int argc, char **argv)
 183 {
 184         return lfs_setstripe_internal(argc, argv, SO_MIRROR_SPLIT);
 185 }
 186
 187 static inline int lfs_mirror_delete(int argc, char **argv)
 188 {
 189         return lfs_setstripe_internal(argc, argv, SO_MIRROR_DELETE);
 190 }
 191
 192 /* Setstripe and migrate share mostly the same parameters */
 193 #define SSM_CMD_COMMON(cmd) \
 194         "usage: "cmd" [--component-end|-E <comp_end>]\n"                \
 195         "                 [--stripe-count|-c <stripe_count>]\n"         \
 196         "                 [--overstripe-count|-C <stripe_count>]\n"     \
 197         "                 [--stripe-index|-i <start_ost_idx>]\n"        \
 198         "                 [--stripe-size|-S <stripe_size>]\n"           \
 199         "                 [--extension-size|--ext-size|-z]\n"           \
 200         "                 [--layout|-L <pattern>]\n"                    \
 201         "                 [--mirror-count|-N[mirror_count]]\n"          \
 202         "                 [--ost|-o <ost_indices>]\n"                   \
 203         "                 [--pool|-p <pool_name>]\n"                    \
 204         "                 [--yaml|-y <yaml_template_file>]\n"           \
 205         "                 [--copy=<lustre_src>]\n"
 206
 207 #define SSM_HELP_COMMON \
 208         "\tstripe_count: Number of OSTs to stripe on (0=fs default, -1 all)\n" \
 209         "\t              Using -C instead of -c allows overstriping, which\n"  \
 210         "\t              will place more than one stripe per OST if\n"         \
 211         "\t              stripe_count is greater than the number of OSTs.\n"   \
 212         "\tstart_ost_idx: OST index of first stripe (-1=default round robin)\n"\
 213         "\tstripe_size:  Number of bytes on each OST (0=fs default)\n"         \
 214         "\t              Optional K, M, or G suffix (for KB, MB, GB\n"         \
 215         "\t              respectively).  Must be a multiple of 64KiB.\n"       \
 216         "\textension_size:\n"                                                  \
 217         "\t              Number of bytes the previous component is extended\n" \
 218         "\t              each time. Optional K, M, or G suffix (for KB,\n"     \
 219         "\t              MB, GB respectively)\n"                               \
 220         "\tpool_name:    Name of OST pool to use (default none)\n"             \
 221         "\tlayout:       stripe pattern type: raid0, mdt (default raid0)\n"    \
 222         "\tost_indices:  List of OST indices, can be repeated multiple times\n"\
 223         "\t              Indices be specified in a format of:\n"               \
 224         "\t                -o <ost_1>,<ost_i>-<ost_j>,<ost_n>\n"               \
 225         "\t              Or:\n"                                                \
 226         "\t                -o <ost_1> -o <ost_i>-<ost_j> -o <ost_n>\n"         \
 227         "\t              If --pool is set with --ost then the OSTs\n"          \
 228         "\t              must be the members of the pool.\n"                   \
 229         "\tcomp_end:     Extent end of component, start after previous end.\n" \
 230         "\t              Optional K, M, or G suffix (for KiB, MiB, GiB), or\n" \
 231         "\t              -1 or 'eof' for max file size). Must be a multiple\n" \
 232         "\t              of stripe_size and a multiple of 64KiB.\n"            \
 233         "\tyaml_template_file:\n"                                              \
 234         "\t              YAML layout template file, can't be used with -c,\n"  \
 235         "\t              -i, -S, -p, -o, or -E arguments.\n"                   \
 236         "\tlustre_src:   Lustre file/dir whose layout info is used to set\n"   \
 237         "\t              another lustre file or directory, can't used with\n"  \
 238         "\t              -c, -i, -S, -p, -o, or -E arguments.\n"
 239
 240 #define MIRROR_CREATE_HELP                                                     \
 241         "\tmirror_count: Number of mirrors to be created with the upcoming\n"  \
 242         "\t              setstripe layout options\n"                           \
 243         "\t              It defaults to 1 if not specified; if specified,\n"   \
 244         "\t              it must follow the option without a space.\n"         \
 245         "\t              The option can also be repeated multiple times to\n"  \
 246         "\t              separate mirrors that have different layouts.\n"      \
 247         "\tSETSTRIPE_OPTIONS: Mirror layout as with 'setstripe'\n"             \
 248         "\t              It can be a plain layout or a composite layout.\n"    \
 249         "\t              If not specified, the stripe options inherited\n"     \
 250         "\t              from the previous component will be used.\n"          \
 251         "\tflags:        set flags to the component of the current mirror.\n"  \
 252         "\t              Only \"prefer\" flag is supported so far.\n"
 253
 254 #define MIRROR_EXTEND_HELP                                                     \
 255         MIRROR_CREATE_HELP                                                     \
 256         "\tvictim_file:  The layout of victim_file will be split and used\n"   \
 257         "\t              as a mirror added to the mirrored file.\n"            \
 258         "\tno-verify:    This option indicates not to verify the mirror(s)\n"  \
 259         "\t              from victim file(s) in case the victim file(s)\n"     \
 260         "\t              contains the same data as the original mirrored\n"    \
 261         "\t              file.\n"
 262
 263 #define MIRROR_EXTEND_USAGE                                                    \
 264         "                 {--mirror-count|-N[mirror_count]}\n"                 \
 265         "                 [SETSTRIPE_OPTIONS|-f|--file <victim_file>]\n"       \
 266         "                 [--no-verify]\n"
 267
 268 #define SETSTRIPE_USAGE                                                 \
 269         SSM_CMD_COMMON("setstripe")                                     \
 270         MIRROR_EXTEND_USAGE                                             \
 271         "                 <directory|filename>\n"                       \
 272         SSM_HELP_COMMON                                                 \
 273         MIRROR_EXTEND_HELP
 274
 275 #define MIGRATE_USAGE                                                   \
 276         SSM_CMD_COMMON("migrate  ")                                     \
 277         "                 [--block|-b] [--non-block|-n]\n"              \
 278         "                 [--non-direct|-D] [--verbose|-v]\n"           \
 279         "                 <filename>\n"                                 \
 280         SSM_HELP_COMMON                                                 \
 281         "\n"                                                            \
 282         "\tblock:        Block file access during data migration (default)\n" \
 283         "\tnon-block:    Abort migrations if concurrent access is detected\n" \
 284         "\tnon-direct:   Do not use direct I/O to copy file contents\n" \
 285         "\tverbose:      Print each filename as it is migrated\n"       \
 286
 287 #define SETDIRSTRIPE_USAGE                                              \
 288         "               [--mdt-count|-c stripe_count>\n"                \
 289         "               [--mdt-hash|-H mdt_hash]\n"                     \
 290         "               [--mdt-index|-i mdt_index[,mdt_index,...]\n"    \
 291         "               [--default|-D] [--mode|-o mode] <dir>\n"        \
 292         "\tstripe_count: stripe count of the striped directory\n"       \
 293         "\tmdt_index: MDT index of first stripe\n"                      \
 294         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 295         "       crush     CRUSH hash algorithm (default)\n" \
 296         "       fnv_1a_64 FNV-1a hash algorithm\n"              \
 297         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 298         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 299         "\tmode: the file access permission of the directory (octal)\n" \
 300         "To create dir with a foreign (free format) layout :\n" \
 301         "setdirstripe|mkdir --foreign[=<foreign_type>] -x|-xattr <string> " \
 302                 "[--mode|-o mode] [--flags <hex>] <dir>\n" \
 303         "\tmode: the mode of the directory\n" \
 304         "\tforeign_type: none or symlink\n"
 305
 306 /**
 307  * command_t mirror_cmdlist - lfs mirror commands.
 308  */
 309 command_t mirror_cmdlist[] = {
 310         { .pc_name = "create", .pc_func = lfs_mirror_create,
 311           .pc_help = "Create a mirrored file.\n"
 312                 "usage: lfs mirror create "
 313                 "<--mirror-count|-N[mirror_count]> "
 314                 "[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> |\n"
 319         "\t               --component-id|--comp-id|-I <comp_id> |\n"
 320         "\t               -p <pool>} <mirrored_file> ...\n"
 321         },
 322         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 323           .pc_help = "Extend a mirrored file.\n"
 324                 "usage: lfs mirror extend "
 325                 "<--mirror-count|-N[mirror_count]> [--no-verify] "
 326                 "[SETSTRIPE_OPTIONS|-f <victim_file>] ... <filename> ...\n"
 327           MIRROR_EXTEND_HELP },
 328         { .pc_name = "split", .pc_func = lfs_mirror_split,
 329           .pc_help = "Split a mirrored file.\n"
 330         "usage: lfs mirror split <--mirror-id <mirror_id> |\n"
 331         "\t             --component-id|-I <comp_id>|-p <pool>> [--destroy|-d]\n"
 332         "\t             [-f <new_file>] <mirrored_file> ...\n"
 333         "\tmirror_id:   The numerical unique identifier for a mirror. It\n"
 334         "\t             can be fetched by lfs getstripe command.\n"
 335         "\tcomp_id:     Unique component ID within a mirror.\n"
 336         "\tpool:        Components on specified pool.\n"
 337         "\tnew_file:    This option indicates the layout of the split\n"
 338         "\t             mirror will be stored into. If not specified,\n"
 339         "\t             a new file named <mirrored_file>.mirror~<mirror_id>\n"
 340         "\t             will be used.\n" },
 341         { .pc_name = "read", .pc_func = lfs_mirror_read,
 342           .pc_help = "Read the content of a specified mirror of a file.\n"
 343                 "usage: lfs mirror read <--mirror-id|-N <mirror_id> "
 344                 "[--outfile|-o <output_file>] <mirrored_file>\n" },
 345         { .pc_name = "write", .pc_func = lfs_mirror_write,
 346           .pc_help = "Write to a specified mirror of a file.\n"
 347                 "usage: lfs mirror write <--mirror-id|-N <mirror_id> "
 348                 "[--inputfile|-i <input_file>] <mirrored_file>\n" },
 349         { .pc_name = "copy", .pc_func = lfs_mirror_copy,
 350           .pc_help = "Copy a specified mirror to other mirror(s) of a file.\n"
 351                 "usage: lfs mirror copy <--read-mirror|-i <id0>> "
 352                 "<--write-mirror|-o <id1,id2>> <mirrored_file>\n" },
 353         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 354           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 355                 "usage: lfs mirror resync [--only <mirror_id[,...]>] "
 356                 "<mirrored file> [<mirrored file2>...]\n"},
 357         { .pc_name = "verify", .pc_func = lfs_mirror_verify,
 358           .pc_help = "Verify mirrored file(s).\n"
 359                 "usage: lfs mirror verify "
 360                 "[--only <mirror_id,mirror_id2[,...]>] "
 361                 "[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n"},
 362         { .pc_name = "list-commands", .pc_func = lfs_mirror_list_commands,
 363           .pc_help = "list commands supported by lfs mirror"},
 364         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 365         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 366         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 367         { .pc_help = NULL }
 368 };
 369
 370 /**
 371  * command_t pcc_cmdlist - lfs pcc commands.
 372  */
 373 command_t pcc_cmdlist[] = {
 374         { .pc_name = "attach", .pc_func = lfs_pcc_attach,
 375           .pc_help = "Attach given files to the Persistent Client Cache.\n"
 376                 "usage: lfs pcc attach <--id|-i NUM> <file> ...\n"
 377                 "\t-i: archive id for RW-PCC\n" },
 378         { .pc_name = "attach_fid", .pc_func = lfs_pcc_attach_fid,
 379           .pc_help = "Attach given files into PCC by FID(s).\n"
 380                 "usage: lfs pcc attach_id <--id|-i NUM> <--mnt|-m mnt> "
 381                 "<fid> ...\n"
 382                 "\t-i: archive id for RW-PCC\n"
 383                 "\t-m: Lustre mount point\n" },
 384         { .pc_name = "state", .pc_func = lfs_pcc_state,
 385           .pc_help = "Display the PCC state for given files.\n"
 386                 "usage: lfs pcc state <file> ...\n" },
 387         { .pc_name = "detach", .pc_func = lfs_pcc_detach,
 388           .pc_help = "Detach given files from the Persistent Client Cache.\n"
 389                 "usage: lfs pcc detach <file> ...\n" },
 390         { .pc_name = "detach_fid", .pc_func = lfs_pcc_detach_fid,
 391           .pc_help = "Detach given files from PCC by FID(s).\n"
 392                 "usage: lfs pcc detach_fid <mntpath> <fid>...\n" },
 393         { .pc_name = "list-commands", .pc_func = lfs_pcc_list_commands,
 394           .pc_help = "list commands supported by lfs pcc"},
 395         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 396         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 397         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 398         { .pc_help = NULL }
 399 };
 400
 401 /* all available commands */
 402 command_t cmdlist[] = {
 403         {"setstripe", lfs_setstripe, 0,
 404          "To create a file with specified striping/composite layout, or\n"
 405          "create/replace the default layout on an existing directory:\n"
 406          SSM_CMD_COMMON("setstripe")
 407          "                 [--mode <mode>]\n"
 408          "                 <directory|filename>\n"
 409          " or\n"
 410          "To add component(s) to an existing composite file:\n"
 411          SSM_CMD_COMMON("setstripe --component-add")
 412          SSM_HELP_COMMON
 413          "To totally delete the default striping from an existing directory:\n"
 414          "usage: setstripe [--delete|-d] <directory>\n"
 415          " or\n"
 416          "To create a mirrored file or set s default mirror layout on a directory:\n"
 417          "usage: setstripe {--mirror-count|-N}[mirror_count] [SETSTRIPE_OPTIONS] <directory|filename>\n"
 418          " or\n"
 419          "To delete the last component(s) from an existing composite file\n"
 420          "(note that this will also delete any data in those components):\n"
 421          "usage: setstripe --component-del [--component-id|-I <comp_id>]\n"
 422          "                               [--component-flags|-F <comp_flags>]\n"
 423          "                               <filename>\n"
 424          "\tcomp_id:     Unique component ID to delete\n"
 425          "\tcomp_flags:  'init' indicating all instantiated components\n"
 426          "\t             '^init' indicating all uninstantiated components\n"
 427          "\t-I and -F cannot be specified at the same time\n"
 428          " or\n"
 429          "To set or clear flags on a specific component\n"
 430          "(note that this command can only be applied to mirrored files:\n"
 431          "usage: setstripe --comp-set {-I comp_id|--comp-flags=comp_flags}\n"
 432          "                            <filename>\n"
 433          " or\n"
 434          "To create a file with a foreign (free format) layout:\n"
 435          "usage: setstripe --foreign[=<foreign_type>]\n"
 436          "                 --xattr|-x <layout_string> [--flags <hex>]\n"
 437          "                 [--mode <mode>] <filename>\n"},
 438         {"getstripe", lfs_getstripe, 0,
 439          "To list the layout pattern for a given file or files in a\n"
 440          "directory or recursively for all files in a directory tree.\n"
 441          "usage: getstripe [--ost|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
 442          "                 [--stripe-count|-c] [--stripe-index|-i] [--fid|-F]\n"
 443          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 444          "                 [--mdt-index|-m] [--recursive|-r] [--raw|-R]\n"
 445          "                 [--layout|-L] [--generation|-g] [--yaml|-y]\n"
 446          "                 [--component-id[=comp_id]|-I[comp_id]]\n"
 447          "                 [--component-flags[=comp_flags]]\n"
 448          "                 [--component-count]\n"
 449          "                 [--extension-size|--ext-size|-z]\n"
 450          "                 [--component-start[=[+-]comp_start]]\n"
 451          "                 [--component-end[=[+-]comp_end]|-E[[+-]comp_end]]\n"
 452          "                 [[!] --mirror-index=[+-]<index> |\n"
 453          "                  [!] --mirror-id=[+-]<id>] [--mirror-count|-N]\n"
 454          "                 <directory|filename> ..."},
 455         {"setdirstripe", lfs_setdirstripe, 0,
 456          "Create striped directory on specified MDT, same as mkdir.\n"
 457          "May be restricted to root or group users, depending on settings.\n"
 458          "usage: setdirstripe [OPTION] <directory>\n"
 459          SETDIRSTRIPE_USAGE},
 460         {"getdirstripe", lfs_getdirstripe, 0,
 461          "To list the layout pattern info for a given directory\n"
 462          "or recursively for all directories in a directory tree.\n"
 463          "usage: getdirstripe [--mdt-count|-c] [--mdt-index|-m|-i]\n"
 464          "                    [--mdt-hash|-H] [--obd|-O <uuid>]\n"
 465          "                    [--recursive|-r] [--yaml|-y]\n"
 466          "                    [--verbose|-v] [--default|-D] <dir> ..."},
 467         {"mkdir", lfs_setdirstripe, 0,
 468          "Create striped directory on specified MDT, same as setdirstripe.\n"
 469          "usage: mkdir [OPTION] <directory>\n"
 470          SETDIRSTRIPE_USAGE},
 471         {"rm_entry", lfs_rmentry, 0,
 472          "To remove the name entry of the remote directory. Note: This\n"
 473          "command will only delete the name entry, i.e. the remote directory\n"
 474          "will become inaccessable after this command. This can only be done\n"
 475          "by the administrator\n"
 476          "usage: rm_entry <dir>\n"},
 477         {"unlink_foreign", lfs_unlink_foreign, 0,
 478          "To remove the foreign file/dir.\n"
 479          "Note: This is for files/dirs prevented to be removed using\n"
 480          "unlink/rmdir, but works also for regular ones\n"
 481          "usage: unlink_foreign <foreign_dir/file> [<foreign_dir/file> ...]\n"},
 482         {"pool_list", lfs_poollist, 0,
 483          "List pools or pool OSTs\n"
 484          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 485         {"find", lfs_find, 0,
 486          "find files matching given attributes recursively in directory tree.\n"
 487          "usage: find <directory|filename> ...\n"
 488          "     [[!] --atime|-A [+-]N[smhdwy]] [[!] --ctime|-C [+-]N[smhdwy]]\n"
 489          "     [[!] --mtime|-M [+-]N[smhdwy]]\n"
 490          "     [[!] --btime|--Btime|-B [+-]N[smhdwy]]\n"
 491          "     [[!] --newer[XY] <reference>] [[!] --blocks|-b N]\n"
 492          "     [--maxdepth|-D N] [[!] --mdt-index|--mdt|-m <uuid|index,...>]\n"
 493          "     [[!] --name|-n <pattern>] [[!] --ost|-O <uuid|index,...>]\n"
 494          "     [--print|-P] [--print0|-0] [[!] --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>] [[!] --pool <pool>]\n"
 501          "     [[!] --projid <projid>]\n"
 502          "     [[!] --layout|-L released,raid0,mdt]\n"
 503          "     [[!] --foreign[=<foreign_type>]]\n"
 504          "     [[!] --component-count [+-]<comp_cnt>]\n"
 505          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 506          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 507          "     [[!] --component-flags {init,stale,prefer,offline,nosync,extension}]\n"
 508          "     [[!] --mirror-count|-N [+-]<n>]\n"
 509          "     [[!] --mirror-state <[^]state>]\n"
 510          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 511          "     [[!] --mdt-hash|-H <hashtype>\n"
 512          "     [[!] --mdt-index|-m <uuid|index,...>]\n"
 513          "\t !: used before an option indicates 'NOT' requested attribute\n"
 514          "\t -: used before a value indicates less than requested value\n"
 515          "\t +: used before a value indicates more than requested value\n"
 516          "\thashtype:   hash type of the striped directory.\n"
 517          "\t            fnv_1a_64 FNV-1a hash algorithm\n"
 518          "\t            all_char  sum of characters % MDT_COUNT\n"},
 519         {"check", lfs_check, 0,
 520          "Display the status of MGTs, MDTs or OSTs (as specified in the command)\n"
 521          "or all the servers (MGTs, MDTs and OSTs).\n"
 522          "usage: check <mgts|osts|mdts|all>"},
 523         {"osts", lfs_osts, 0, "list OSTs connected to client "
 524          "[for specified path only]\n" "usage: osts [path]"},
 525         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 526          "[for specified path only]\n" "usage: mdts [path]"},
 527         {"df", lfs_df, 0,
 528          "report filesystem disk space usage or inodes usage "
 529          "of each MDS and all OSDs or a batch belonging to a specific pool.\n"
 530          "Usage: df [--inodes|-i] [--human-readable|-h] [--lazy|-l]\n"
 531          "          [--pool|-p <fsname>[.<pool>]] [path]"},
 532         {"getname", lfs_getname, 0,
 533          "list instances and specified mount points [for specified path only]\n"
 534          "Usage: getname [--help|-h] [--instance|-i] [--fsname|-n] [path ...]"},
 535 #ifdef HAVE_SYS_QUOTA_H
 536         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 537          "usage: setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 538          "                -b <block-softlimit> -B <block-hardlimit>\n"
 539          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 540          "       setquota <-u|--user|-g|--group|-p|--projid> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 541          "                [--block-softlimit <block-softlimit>]\n"
 542          "                [--block-hardlimit <block-hardlimit>]\n"
 543          "                [--inode-softlimit <inode-softlimit>]\n"
 544          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 545          "       setquota [-t] <-u|--user|-g|--group|-p|--projid>\n"
 546          "                [--block-grace 'notify'|<block-grace>]\n"
 547          "                [--inode-grace 'notify'|<inode-grace>] <filesystem>\n"
 548          "       setquota <-U|-G|-P>\n"
 549          "                -b <block-softlimit> -B <block-hardlimit>\n"
 550          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 551          "       setquota <-U|--default-usr|-G|--default-grp|-P|--default-prj>\n"
 552          "                [--block-softlimit <block-softlimit>]\n"
 553          "                [--block-hardlimit <block-hardlimit>]\n"
 554          "                [--inode-softlimit <inode-softlimit>]\n"
 555          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 556          "       setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 557          "                <-d|--default>\n"
 558          "       -b can be used instead of --block-softlimit/--block-grace\n"
 559          "       -B can be used instead of --block-hardlimit\n"
 560          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 561          "       -I can be used instead of --inode-hardlimit\n"
 562          "       -d can be used instead of --default\n\n"
 563          "Note: The total quota space will be split into many qunits and\n"
 564          "      balanced over all server targets, the minimal qunit size is\n"
 565          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 566          "      The maximum quota grace time is 2^48 - 1 seconds.\n\n"
 567          "      Quota space rebalancing process will stop when this mininum\n"
 568          "      value is reached. As a result, quota exceeded can be returned\n"
 569          "      while many targets still have 1MB or 1K inodes of spare\n"
 570          "      quota space.\n\n"
 571          "      When setting the grace time, 'notify' can be used as grace to\n"
 572          "      be notified after the quota is over soft limit but prevents\n"
 573          "      the soft limit from becoming the hard limit."},
 574         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 575          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
 576                        "<ost_idx>]\n"
 577          "             [<-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>\n"
 578          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g|-p> <filesystem>\n"
 579         "        quota [-q] [-v] [h] <-U|-G|-P> <filesystem>"},
 580         {"project", lfs_project, 0,
 581          "Change or list project attribute for specified file or directory.\n"
 582          "usage: project [-d|-r] <file|directory...>\n"
 583          "         list project ID and flags on file(s) or directories\n"
 584          "       project [-p id] [-s] [-r] <file|directory...>\n"
 585          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 586          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 587          "         check project ID and flags on file(s) or directories, print outliers\n"
 588          "       project -C [-r] [-k] <file|directory...>\n"
 589          "         clear the project inherit flag and ID on the file or directory\n"
 590         },
 591 #endif
 592         {"flushctx", lfs_flushctx, 0,
 593          "Flush security context for current user.\n"
 594          "usage: flushctx [-k] [-r] [mountpoint...]"},
 595         {"changelog", lfs_changelog, 0,
 596          "Show the metadata changes on an MDT."
 597          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 598         {"changelog_clear", lfs_changelog_clear, 0,
 599          "Indicate that old changelog records up to <endrec> are no longer of "
 600          "interest to consumer <id>, allowing the system to free up space.\n"
 601          "An <endrec> of 0 means all records.\n"
 602          "usage: changelog_clear <mdtname> <id> <endrec>"},
 603         {"fid2path", lfs_fid2path, 0,
 604          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 605          "specify link number <linkno>.\n"
 606          "usage: fid2path [--print-fid|-f] [--print-link|-c] [--link|-l <linkno>] "
 607          "<fsname|root> <fid>..."},
 608         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 609          "usage: path2fid [--parents] <path> ..."},
 610         {"rmfid", lfs_rmfid, 0, "Remove file(s) by FID(s)\n"
 611          "usage: rmfid <fsname|rootpath> <fid> ..."},
 612         {"data_version", lfs_data_version, 0, "Display file data version for "
 613          "a given path.\n" "usage: data_version [-n|-r|-w] <path>"},
 614         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 615          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 616         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 617          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 618          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 619         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 620          "files.\n"
 621          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 622          "[--archived] [--lost] <file> ..."},
 623         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 624          "given files.\n" "usage: hsm_action <file> ..."},
 625         {"hsm_archive", lfs_hsm_archive, 0,
 626          "Archive file to external storage.\n"
 627          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 628          "<file> ..."},
 629         {"hsm_restore", lfs_hsm_restore, 0,
 630          "Restore file from external storage.\n"
 631          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 632         {"hsm_release", lfs_hsm_release, 0,
 633          "Release files from Lustre.\n"
 634          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 635         {"hsm_remove", lfs_hsm_remove, 0,
 636          "Remove file copy from external storage.\n"
 637          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 638          "[--archive NUM]\n"
 639          "                  (FILE [FILE ...] | "
 640          "--mntpath MOUNTPATH FID [FID ...])\n"
 641          "\n"
 642          "Note: To remove an archived copy of a file already deleted from a "
 643          "Lustre FS, the\n"
 644          "--mntpath option and a list of FIDs must be specified"
 645         },
 646         {"hsm_cancel", lfs_hsm_cancel, 0,
 647          "Cancel requests related to specified files.\n"
 648          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 649         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 650          "usage: swap_layouts <path1> <path2>"},
 651         {"migrate", lfs_setstripe_migrate, 0,
 652          "migrate a directory between MDTs.\n"
 653          "usage: migrate [--mdt-count|-c] <stripe_count>\n"
 654          "               [--mdt-hash|-H] <hash_type>\n"
 655          "               [--mdt-index|-m] <start_mdt_index>\n"
 656          "               [--verbose|-v]\n"
 657          "               <directory>\n"
 658          "\tmdt:        MDTs to stripe over, if only one MDT is specified\n"
 659          "                      it's the MDT index of first stripe\n"
 660          "\tmdt_count:  number of MDTs to stripe a directory over\n"
 661          "\tmdt_hash:   hash type of the striped directory. mdt types:\n"
 662          "              all_char  (type 1)sum of characters % MDT_COUNT\n"
 663          "              fnv_1a_64 (type 2)FNV-1a hash algorithm (default)\n"
 664          "              crush     (type 3)CRUSH hash algorithm\n"
 665          "\n"
 666          "migrate file objects from one OST "
 667          "layout\nto another (may be not safe with concurent writes).\n"
 668          "usage: migrate  "
 669          "[--stripe-count|-c] <stripe_count>\n"
 670          "[--overstripe-count|-C] <stripe_count>\n"
 671          "              [--stripe-index|-i] <start_ost_index>\n"
 672          "              [--stripe-size|-S] <stripe_size>\n"
 673          "              [--pool|-p] <pool_name>\n"
 674          "              [--ost|-o] <ost_indices>\n"
 675          "              [--block|-b]\n"
 676          "              [--non-block|-n]\n"
 677          "              [--non-direct|-D]\n"
 678          "              <file|directory>\n"
 679          "\tstripe_count:     number of OSTs to stripe a file over\n"
 680          "\t              Using -C instead of -c allows overstriping, which\n"
 681          "\t              will place more than one stripe per OST if\n"
 682          "\t              stripe_count is greater than the number of OSTs\n"
 683          "\tstripe_ost_index: index of the first OST to stripe a file over\n"
 684          "\tstripe_size:      number of bytes to store before moving to the next OST\n"
 685          "\tpool_name:        name of the predefined pool of OSTs\n"
 686          "\tost_indices:      OSTs to stripe over, in order\n"
 687          "\tblock:        Block file access during data migration (default)\n"
 688          "\tnon-block:    Abort migrations if concurrent access is detected\n"
 689          "\tnon-direct:       do not use direct I/O to copy file contents.\n"},
 690         {"mv", lfs_mv, 0,
 691          "To move directories between MDTs. This command is deprecated, "
 692          "use \"migrate\" instead.\n"
 693          "usage: mv <directory|filename> [--mdt-index|-m] <mdt_index> "
 694          "[--verbose|-v]\n"},
 695         {"ladvise", lfs_ladvise, 0,
 696          "Provide servers with advice about access patterns for a file.\n"
 697          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 698          "               [--background|-b] [--unset|-u]\n\n"
 699          "               {[--end|-e END[kMGT]] | [--length|-l LENGTH[kMGT]]}\n"
 700          "               {[--mode|-m [READ,WRITE]}\n"
 701          "               <file> ...\n"},
 702         {"mirror", lfs_mirror, mirror_cmdlist,
 703          "lfs commands used to manage files with mirrored components:\n"
 704          "lfs mirror create - create a mirrored file or directory\n"
 705          "lfs mirror extend - add mirror(s) to an existing file\n"
 706          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 707          "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
 708          "lfs mirror read   - read a mirror content of a mirrored file\n"
 709          "lfs mirror write  - write to a mirror of a mirrored file\n"
 710          "lfs mirror copy   - copy a mirror to other mirror(s) of a file\n"
 711          "lfs mirror verify - verify mirrored file(s)\n"},
 712         {"getsom", lfs_getsom, 0, "To list the SOM info for a given file.\n"
 713          "usage: getsom [-s] [-b] [-f] <path>\n"
 714          "\t-s: Only show the size value of the SOM data for a given file\n"
 715          "\t-b: Only show the blocks value of the SOM data for a given file\n"
 716          "\t-f: Only show the flags value of the SOM data for a given file\n"},
 717         {"heat_get", lfs_heat_get, 0,
 718          "To get heat of files.\n"
 719          "usage: heat_get <file> ...\n"},
 720         {"heat_set", lfs_heat_set, 0,
 721          "To set heat flags of files.\n"
 722          "usage: heat_set [--clear|-c] [--off|-o] [--on|-O] <file> ...\n"
 723          "\t--clear|-c: Clear file heat for given files\n"
 724          "\t--off|-o:   Turn off file heat for given files\n"
 725          "\t--on|-O:    Turn on file heat for given files\n"},
 726         {"pcc", lfs_pcc, pcc_cmdlist,
 727          "lfs commands used to interact with PCC features:\n"
 728          "lfs pcc attach - attach given files to Persistent Client Cache\n"
 729          "lfs pcc attach_fid - attach given files into PCC by FID(s)\n"
 730          "lfs pcc state  - display the PCC state for given files\n"
 731          "lfs pcc detach - detach given files from Persistent Client Cache\n"
 732          "lfs pcc detach_fid - detach given files from PCC by FID(s)\n"},
 733         {"help", Parser_help, 0, "help"},
 734         {"exit", Parser_quit, 0, "quit"},
 735         {"quit", Parser_quit, 0, "quit"},
 736         {"--version", Parser_version, 0,
 737          "output build version of the utility and exit"},
 738         {"--list-commands", lfs_list_commands, 0,
 739          "list commands supported by the utility and exit"},
 740         { 0, 0, 0, NULL }
 741 };
 742
 743 static int check_hashtype(const char *hashtype)
 744 {
 745         int type_num = atoi(hashtype);
 746         int i;
 747
 748         /* numeric hash type */
 749         if (hashtype && strlen(hashtype) == 1 &&
 750             (type_num > 0 && type_num < LMV_HASH_TYPE_MAX))
 751                 return type_num;
 752         /* string hash type */
 753         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 754                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 755                         return i;
 756
 757         return 0;
 758 }
 759
 760 static uint32_t check_foreign_type_name(const char *foreign_type_name)
 761 {
 762         uint32_t i;
 763
 764         for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
 765                 if (!lu_foreign_types[i].lft_name)
 766                         break;
 767                 if (strcmp(foreign_type_name,
 768                            lu_foreign_types[i].lft_name) == 0)
 769                         return lu_foreign_types[i].lft_type;
 770         }
 771
 772         return LU_FOREIGN_TYPE_UNKNOWN;
 773 }
 774
 775 static const char *error_loc = "syserror";
 776
 777 enum {
 778         MIGRATION_NONBLOCK      = 0x0001,
 779         MIGRATION_MIRROR        = 0x0002,
 780         MIGRATION_NONDIRECT     = 0x0004,
 781         MIGRATION_VERBOSE       = 0x0008,
 782 };
 783
 784 static int
 785 migrate_open_files(const char *name, __u64 migration_flags,
 786                    const struct llapi_stripe_param *param,
 787                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 788 {
 789         int                      fd = -1;
 790         int                      fdv = -1;
 791         int                      rflags;
 792         int                      mdt_index;
 793         int                      random_value;
 794         char                     parent[PATH_MAX];
 795         char                     volatile_file[PATH_MAX];
 796         char                    *ptr;
 797         int                      rc;
 798         struct stat              st;
 799         struct stat              stv;
 800
 801         if (!param && !layout) {
 802                 error_loc = "layout information";
 803                 return -EINVAL;
 804         }
 805
 806         /* search for file directory pathname */
 807         if (strlen(name) > sizeof(parent) - 1) {
 808                 error_loc = "source file name";
 809                 return -ERANGE;
 810         }
 811
 812         strncpy(parent, name, sizeof(parent));
 813         ptr = strrchr(parent, '/');
 814         if (!ptr) {
 815                 if (!getcwd(parent, sizeof(parent))) {
 816                         error_loc = "getcwd";
 817                         return -errno;
 818                 }
 819         } else {
 820                 if (ptr == parent) /* leading '/' */
 821                         ptr = parent + 1;
 822                 *ptr = '\0';
 823         }
 824
 825         /* open file, direct io */
 826         /* even if the file is only read, WR mode is nedeed to allow
 827          * layout swap on fd
 828          */
 829         rflags = O_RDWR;
 830         if (!(migration_flags & MIGRATION_NONDIRECT))
 831                 rflags |= O_DIRECT;
 832         fd = open(name, rflags);
 833         if (fd < 0) {
 834                 rc = -errno;
 835                 error_loc = "cannot open source file";
 836                 return rc;
 837         }
 838
 839         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 840         if (rc < 0) {
 841                 error_loc = "cannot get MDT index";
 842                 goto out;
 843         }
 844
 845         do {
 846                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 847                 mode_t open_mode = S_IRUSR | S_IWUSR;
 848
 849                 random_value = random();
 850                 rc = snprintf(volatile_file, sizeof(volatile_file),
 851                               "%s/%s:%.4X:%.4X", parent, LUSTRE_VOLATILE_HDR,
 852                               mdt_index, random_value);
 853                 if (rc >= sizeof(volatile_file)) {
 854                         rc = -ENAMETOOLONG;
 855                         break;
 856                 }
 857
 858                 /* create, open a volatile file, use caching (ie no directio) */
 859                 if (layout) {
 860                         /* Returns -1 and sets errno on error: */
 861                         fdv = llapi_layout_file_open(volatile_file, open_flags,
 862                                                      open_mode, layout);
 863                         if (fdv < 0)
 864                                 fdv = -errno;
 865                 } else {
 866                         /* Does the right thing on error: */
 867                         fdv = llapi_file_open_param(volatile_file, open_flags,
 868                                                     open_mode, param);
 869                 }
 870         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 871
 872         if (rc < 0) {
 873                 error_loc = "cannot create volatile file";
 874                 goto out;
 875         }
 876
 877         /*
 878          * In case the MDT does not support creation of volatile files
 879          * we should try to unlink it.
 880          */
 881         (void)unlink(volatile_file);
 882
 883         /*
 884          * Not-owner (root?) special case.
 885          * Need to set owner/group of volatile file like original.
 886          * This will allow to pass related check during layout_swap.
 887          */
 888         rc = fstat(fd, &st);
 889         if (rc != 0) {
 890                 rc = -errno;
 891                 error_loc = "cannot stat source file";
 892                 goto out;
 893         }
 894
 895         rc = fstat(fdv, &stv);
 896         if (rc != 0) {
 897                 rc = -errno;
 898                 error_loc = "cannot stat volatile";
 899                 goto out;
 900         }
 901
 902         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 903                 rc = fchown(fdv, st.st_uid, st.st_gid);
 904                 if (rc != 0) {
 905                         rc = -errno;
 906                         error_loc = "cannot change ownwership of volatile";
 907                         goto out;
 908                 }
 909         }
 910
 911 out:
 912         if (rc < 0) {
 913                 if (fd > 0)
 914                         close(fd);
 915                 if (fdv > 0)
 916                         close(fdv);
 917         } else {
 918                 *fd_src = fd;
 919                 *fd_tgt = fdv;
 920                 error_loc = NULL;
 921         }
 922         return rc;
 923 }
 924
 925 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 926 {
 927         struct llapi_layout *layout;
 928         size_t   buf_size = 4 * 1024 * 1024;
 929         void    *buf = NULL;
 930         ssize_t  rsize = -1;
 931         ssize_t  wsize = 0;
 932         size_t   rpos = 0;
 933         size_t   wpos = 0;
 934         off_t    bufoff = 0;
 935         int      rc;
 936
 937         layout = llapi_layout_get_by_fd(fd_src, 0);
 938         if (layout) {
 939                 uint64_t stripe_size;
 940
 941                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 942                 if (rc == 0)
 943                         buf_size = stripe_size;
 944
 945                 llapi_layout_free(layout);
 946         }
 947
 948         /* Use a page-aligned buffer for direct I/O */
 949         rc = posix_memalign(&buf, getpagesize(), buf_size);
 950         if (rc != 0)
 951                 return -rc;
 952
 953         while (1) {
 954                 /*
 955                  * read new data only if we have written all
 956                  * previously read data
 957                  */
 958                 if (wpos == rpos) {
 959                         if (check_file) {
 960                                 rc = check_file(fd_src);
 961                                 if (rc < 0)
 962                                         goto out;
 963                         }
 964
 965                         rsize = read(fd_src, buf, buf_size);
 966                         if (rsize < 0) {
 967                                 rc = -errno;
 968                                 goto out;
 969                         }
 970
 971                         rpos += rsize;
 972                         bufoff = 0;
 973                 }
 974
 975                 /* eof ? */
 976                 if (rsize == 0)
 977                         break;
 978
 979                 wsize = write(fd_dst, buf + bufoff, rpos - wpos);
 980                 if (wsize < 0) {
 981                         rc = -errno;
 982                         break;
 983                 }
 984                 wpos += wsize;
 985                 bufoff += wsize;
 986         }
 987
 988         rc = fsync(fd_dst);
 989         if (rc < 0)
 990                 rc = -errno;
 991 out:
 992         /* Try to avoid page cache pollution after migration. */
 993         (void)posix_fadvise(fd_src, 0, 0, POSIX_FADV_DONTNEED);
 994         (void)posix_fadvise(fd_dst, 0, 0, POSIX_FADV_DONTNEED);
 995
 996         free(buf);
 997         return rc;
 998 }
 999
1000 static int migrate_copy_timestamps(int fd, int fdv)
1001 {
1002         struct stat st;
1003
1004         if (fstat(fd, &st) == 0) {
1005                 struct timeval tv[2] = {
1006                         {.tv_sec = st.st_atime},
1007                         {.tv_sec = st.st_mtime}
1008                 };
1009
1010                 return futimes(fdv, tv);
1011         }
1012
1013         return -errno;
1014 }
1015
1016 static int migrate_block(int fd, int fdv)
1017 {
1018         __u64   dv1;
1019         int     gid;
1020         int     rc;
1021         int     rc2;
1022
1023         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
1024         if (rc < 0) {
1025                 error_loc = "cannot get dataversion";
1026                 return rc;
1027         }
1028
1029         do
1030                 gid = random();
1031         while (gid == 0);
1032
1033         /*
1034          * The grouplock blocks all concurrent accesses to the file.
1035          * It has to be taken after llapi_get_data_version as it would
1036          * block it too.
1037          */
1038         rc = llapi_group_lock(fd, gid);
1039         if (rc < 0) {
1040                 error_loc = "cannot get group lock";
1041                 return rc;
1042         }
1043
1044         rc = migrate_copy_data(fd, fdv, NULL);
1045         if (rc < 0) {
1046                 error_loc = "data copy failed";
1047                 goto out_unlock;
1048         }
1049
1050         /* Make sure we keep original atime/mtime values */
1051         rc = migrate_copy_timestamps(fd, fdv);
1052         if (rc < 0) {
1053                 error_loc = "timestamp copy failed";
1054                 goto out_unlock;
1055         }
1056
1057         /*
1058          * swap layouts
1059          * for a migration we need to check data version on file did
1060          * not change.
1061          *
1062          * Pass in gid=0 since we already own grouplock.
1063          */
1064         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
1065                                            SWAP_LAYOUTS_CHECK_DV1);
1066         if (rc == -EAGAIN) {
1067                 error_loc = "file changed";
1068                 goto out_unlock;
1069         } else if (rc < 0) {
1070                 error_loc = "cannot swap layout";
1071                 goto out_unlock;
1072         }
1073
1074 out_unlock:
1075         rc2 = llapi_group_unlock(fd, gid);
1076         if (rc2 < 0 && rc == 0) {
1077                 error_loc = "unlock group lock";
1078                 rc = rc2;
1079         }
1080
1081         return rc;
1082 }
1083
1084 /**
1085  * Internal helper for migrate_copy_data(). Check lease and report error if
1086  * need be.
1087  *
1088  * \param[in]  fd           File descriptor on which to check the lease.
1089  *
1090  * \retval 0       Migration can keep on going.
1091  * \retval -errno  Error occurred, abort migration.
1092  */
1093 static int check_lease(int fd)
1094 {
1095         int rc;
1096
1097         rc = llapi_lease_check(fd);
1098         if (rc > 0)
1099                 return 0; /* llapi_check_lease returns > 0 on success. */
1100
1101         return -EBUSY;
1102 }
1103
1104 static int migrate_nonblock(int fd, int fdv)
1105 {
1106         __u64   dv1;
1107         __u64   dv2;
1108         int     rc;
1109
1110         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
1111         if (rc < 0) {
1112                 error_loc = "cannot get data version";
1113                 return rc;
1114         }
1115
1116         rc = migrate_copy_data(fd, fdv, check_lease);
1117         if (rc < 0) {
1118                 error_loc = "data copy failed";
1119                 return rc;
1120         }
1121
1122         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
1123         if (rc != 0) {
1124                 error_loc = "cannot get data version";
1125                 return rc;
1126         }
1127
1128         if (dv1 != dv2) {
1129                 rc = -EAGAIN;
1130                 error_loc = "source file changed";
1131                 return rc;
1132         }
1133
1134         /* Make sure we keep original atime/mtime values */
1135         rc = migrate_copy_timestamps(fd, fdv);
1136         if (rc < 0) {
1137                 error_loc = "timestamp copy failed";
1138                 return rc;
1139         }
1140
1141         return 0;
1142 }
1143
1144 static
1145 int lfs_layout_compid_by_pool(char *fname, const char *pool, int *comp_id)
1146 {
1147         struct pool_to_id_cbdata data = { .pool = pool };
1148         struct llapi_layout *layout = NULL;
1149         int rc;
1150
1151         layout = llapi_layout_get_by_path(fname, 0);
1152         if (!layout) {
1153                 fprintf(stderr,
1154                         "error %s: file '%s' couldn't get layout: rc=%d\n",
1155                         progname, fname, errno);
1156                 rc = -errno;
1157                 goto free_layout;
1158         }
1159         rc = llapi_layout_sanity(layout, false, true);
1160         if (rc < 0) {
1161                 llapi_layout_sanity_perror(errno);
1162                 goto free_layout;
1163         }
1164         rc = llapi_layout_comp_iterate(layout, find_comp_id_by_pool, &data);
1165         if (rc < 0)
1166                 goto free_layout;
1167
1168         *comp_id = data.id;
1169         rc = 0;
1170
1171 free_layout:
1172         if (layout)
1173                 llapi_layout_free(layout);
1174         return rc;
1175 }
1176
1177 static int lfs_component_set(char *fname, int comp_id, const char *pool,
1178                              __u32 flags, __u32 neg_flags)
1179 {
1180         __u32 ids[2];
1181         __u32 flags_array[2];
1182         size_t count = 0;
1183         int rc;
1184
1185         if (!comp_id) {
1186                 if (pool == NULL) {
1187                         fprintf(stderr,
1188                                 "error %s: neither component id nor pool is specified\n",
1189                                 progname);
1190                         return -EINVAL;
1191                 }
1192                 rc = lfs_layout_compid_by_pool(fname, pool, &comp_id);
1193                 if (rc)
1194                         return rc;
1195         }
1196
1197         if (flags) {
1198                 ids[count] = comp_id;
1199                 flags_array[count] = flags;
1200                 ++count;
1201         }
1202
1203         if (neg_flags) {
1204                 if (neg_flags & LCME_FL_STALE) {
1205                         fprintf(stderr,
1206                                 "%s: cannot clear 'stale' flags from component. Please use lfs-mirror-resync(1) instead\n",
1207                                 progname);
1208                         return -EINVAL;
1209                 }
1210
1211                 ids[count] = comp_id;
1212                 flags_array[count] = neg_flags | LCME_FL_NEG;
1213                 ++count;
1214         }
1215
1216         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
1217         if (rc) {
1218                 if (errno == EUCLEAN) {
1219                         rc = -errno;
1220                         fprintf(stderr,
1221                                 "%s: cannot set 'stale' flag on component '%#x' of the last non-stale mirror of '%s'\n",
1222                                 progname, comp_id, fname);
1223                 } else {
1224                         fprintf(stderr,
1225                                 "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
1226                                 progname, comp_id, fname, flags, neg_flags);
1227                 }
1228         }
1229
1230         return rc;
1231 }
1232
1233 static int lfs_component_del(char *fname, __u32 comp_id,
1234                              __u32 flags, __u32 neg_flags)
1235 {
1236         int     rc = 0;
1237
1238         if (flags && neg_flags)
1239                 return -EINVAL;
1240
1241         if (!flags && neg_flags)
1242                 flags = neg_flags | LCME_FL_NEG;
1243
1244         if ((flags && comp_id) || (!flags && !comp_id))
1245                 return -EINVAL;
1246
1247         if (flags) {
1248                 if (flags & ~LCME_KNOWN_FLAGS) {
1249                         fprintf(stderr,
1250                                 "%s setstripe: unknown flags %#x\n",
1251                                 progname, flags);
1252                         return -EINVAL;
1253                 }
1254         } else if (comp_id > LCME_ID_MAX) {
1255                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
1256                         progname, comp_id);
1257                 return -EINVAL;
1258         }
1259
1260         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
1261         if (rc)
1262                 fprintf(stderr,
1263                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
1264                         progname, comp_id, fname, strerror(errno));
1265         return rc;
1266 }
1267
1268 static int lfs_component_add(char *fname, struct llapi_layout *layout)
1269 {
1270         int     rc;
1271
1272         if (!layout)
1273                 return -EINVAL;
1274
1275         rc = llapi_layout_file_comp_add(fname, layout);
1276         if (rc)
1277                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1278                         fname, strerror(errno));
1279         return rc;
1280 }
1281
1282 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1283                                 struct llapi_layout *layout)
1284 {
1285         struct stat     st;
1286         int     fd;
1287
1288         if (!layout)
1289                 return -EINVAL;
1290
1291         fd = lstat(fname, &st);
1292         if (fd == 0 && S_ISDIR(st.st_mode))
1293                 open_flags = O_DIRECTORY | O_RDONLY;
1294
1295         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1296         if (fd < 0)
1297                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1298                         S_ISDIR(st.st_mode) ?
1299                                 "set default composite layout for" :
1300                                 "create composite file",
1301                         fname, strerror(errno));
1302         return fd;
1303 }
1304
1305 static int lfs_migrate(char *name, __u64 migration_flags,
1306                        struct llapi_stripe_param *param,
1307                        struct llapi_layout *layout)
1308 {
1309         struct llapi_layout *existing;
1310         uint64_t dom_new, dom_cur;
1311         int fd = -1;
1312         int fdv = -1;
1313         int rc;
1314
1315         rc = migrate_open_files(name, migration_flags, param, layout,
1316                                 &fd, &fdv);
1317         if (rc < 0)
1318                 goto out;
1319
1320         rc = llapi_layout_dom_size(layout, &dom_new);
1321         if (rc) {
1322                 error_loc = "cannot get new layout DoM size";
1323                 goto out;
1324         }
1325         /* special case for migration to DOM layout*/
1326         existing = llapi_layout_get_by_fd(fd, 0);
1327         if (!existing) {
1328                 error_loc = "cannot get existing layout";
1329                 goto out;
1330         }
1331
1332         rc = llapi_layout_dom_size(existing, &dom_cur);
1333         if (rc) {
1334                 error_loc = "cannot get current layout DoM size";
1335                 goto out;
1336         }
1337
1338         /*
1339          * if file has DoM layout already then migration is possible to
1340          * the new layout with the same DoM component via swap layout,
1341          * if new layout used bigger DOM size, then mirroring is used
1342          */
1343         if (dom_new > dom_cur) {
1344                 rc = lfs_migrate_to_dom(fd, fdv, name, migration_flags, param,
1345                                         layout);
1346                 if (rc)
1347                         error_loc = "cannot migrate to DOM layout";
1348                 goto out_closed;
1349         }
1350
1351         if (!(migration_flags & MIGRATION_NONBLOCK)) {
1352                 /*
1353                  * Blocking mode (forced if servers do not support file lease).
1354                  * It is also the default mode, since we cannot distinguish
1355                  * between a broken lease and a server that does not support
1356                  * atomic swap/close (LU-6785)
1357                  */
1358                 rc = migrate_block(fd, fdv);
1359                 goto out;
1360         }
1361
1362         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1363         if (rc < 0) {
1364                 error_loc = "cannot get lease";
1365                 goto out;
1366         }
1367
1368         rc = migrate_nonblock(fd, fdv);
1369         if (rc < 0) {
1370                 llapi_lease_release(fd);
1371                 goto out;
1372         }
1373
1374         /*
1375          * Atomically put lease, swap layouts and close.
1376          * for a migration we need to check data version on file did
1377          * not change.
1378          */
1379         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1380         if (rc < 0) {
1381                 error_loc = "cannot swap layout";
1382                 goto out;
1383         }
1384
1385 out:
1386         if (fd >= 0)
1387                 close(fd);
1388
1389         if (fdv >= 0)
1390                 close(fdv);
1391 out_closed:
1392         if (rc < 0)
1393                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1394                         progname, name, error_loc, strerror(-rc));
1395         else if (migration_flags & MIGRATION_VERBOSE)
1396                 printf("%s\n", name);
1397
1398         return rc;
1399 }
1400
1401 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1402 {
1403         char *name;
1404         char *dup_string = NULL;
1405         int rc = 0;
1406
1407         *flags = 0;
1408         *neg_flags = 0;
1409
1410         if (!string || !string[0])
1411                 return -EINVAL;
1412
1413         dup_string = strdup(string);
1414         if (!dup_string) {
1415                 llapi_printf(LLAPI_MSG_ERROR,
1416                              "%s: insufficient memory\n",
1417                              progname);
1418                 return -ENOMEM;
1419         }
1420
1421         for (name = strtok(dup_string, ","); name; name = strtok(NULL, ",")) {
1422                 bool found = false;
1423                 int i;
1424
1425                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1426                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1427                         const char *comp_name = comp_flags_table[i].cfn_name;
1428
1429                         if (strcmp(name, comp_name) == 0) {
1430                                 *flags |= comp_flag;
1431                                 found = true;
1432                         } else if (strncmp(name, "^", 1) == 0 &&
1433                                    strcmp(name + 1, comp_name) == 0) {
1434                                 *neg_flags |= comp_flag;
1435                                 found = true;
1436                         }
1437                 }
1438                 if (!found) {
1439                         llapi_printf(LLAPI_MSG_ERROR,
1440                                      "%s: component flag '%s' not supported\n",
1441                                      progname, name);
1442                         rc = -EINVAL;
1443                         goto out_free;
1444                 }
1445         }
1446
1447         if (!*flags && !*neg_flags)
1448                 rc = -EINVAL;
1449
1450         /* don't allow to set and exclude the same flag */
1451         if (*flags & *neg_flags)
1452                 rc = -EINVAL;
1453
1454 out_free:
1455         free(dup_string);
1456         return rc;
1457 }
1458
1459 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1460 {
1461         if (!string)
1462                 return -EINVAL;
1463
1464         *state = 0;
1465         *neg_state = 0;
1466
1467         if (strncmp(string, "^", 1) == 0) {
1468                 *neg_state = llapi_layout_string_flags(string + 1);
1469                 if (*neg_state != 0)
1470                         return 0;
1471         } else {
1472                 *state = llapi_layout_string_flags(string);
1473                 if (*state != 0)
1474                         return 0;
1475         }
1476
1477         llapi_printf(LLAPI_MSG_ERROR,
1478                      "%s: mirrored file state '%s' not supported\n",
1479                      progname, string);
1480         return -EINVAL;
1481 }
1482
1483 /**
1484  * struct mirror_args - Command-line arguments for mirror(s).
1485  * @m_count:  Number of mirrors to be created with this layout.
1486  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1487  * @m_layout: Mirror layout.
1488  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1489  * @m_next:   Point to the next node of the list.
1490  *
1491  * Command-line arguments for mirror(s) will be parsed and stored in
1492  * a linked list that consists of this structure.
1493  */
1494 struct mirror_args {
1495         __u32                   m_count;
1496         __u32                   m_flags;
1497         struct llapi_layout     *m_layout;
1498         const char              *m_file;
1499         struct mirror_args      *m_next;
1500         bool                    m_inherit;
1501 };
1502
1503 /**
1504  * enum mirror_flags - Flags for extending a mirrored file.
1505  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1506  *             in case the victim file(s) contains the same data as the
1507  *             original mirrored file.
1508  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1509  * @MF_COMP_ID: specified component id instead of mirror id
1510  *
1511  * Flags for extending a mirrored file.
1512  */
1513 enum mirror_flags {
1514         MF_NO_VERIFY    = 0x1,
1515         MF_DESTROY      = 0x2,
1516         MF_COMP_ID      = 0x4,
1517         MF_COMP_POOL    = 0x8,
1518 };
1519
1520 /**
1521  * mirror_create_sanity_check() - Check mirror list.
1522  * @list:  A linked list that stores the mirror arguments.
1523  *
1524  * This function does a sanity check on @list for creating
1525  * a mirrored file.
1526  *
1527  * Return: 0 on success or a negative error code on failure.
1528  */
1529 static int mirror_create_sanity_check(const char *fname,
1530                                       struct mirror_args *list)
1531 {
1532         int rc = 0;
1533         bool has_m_file = false;
1534         bool has_m_layout = false;
1535
1536         if (!list)
1537                 return -EINVAL;
1538
1539         if (fname) {
1540                 struct llapi_layout *layout;
1541
1542                 layout = llapi_layout_get_by_path(fname, 0);
1543                 if (!layout) {
1544                         fprintf(stderr,
1545                                 "error: %s: file '%s' couldn't get layout\n",
1546                                 progname, fname);
1547                         return -ENODATA;
1548                 }
1549
1550                 rc = llapi_layout_sanity(layout, false, true);
1551
1552                 llapi_layout_free(layout);
1553
1554                 if (rc) {
1555                         llapi_layout_sanity_perror(rc);
1556                         return rc;
1557                 }
1558         }
1559
1560         while (list) {
1561                 if (list->m_file) {
1562                         has_m_file = true;
1563                         llapi_layout_free(list->m_layout);
1564
1565                         list->m_layout =
1566                                 llapi_layout_get_by_path(list->m_file, 0);
1567                         if (!list->m_layout) {
1568                                 fprintf(stderr,
1569                                         "error: %s: file '%s' has no layout\n",
1570                                         progname, list->m_file);
1571                                 return -ENODATA;
1572                         }
1573                 } else {
1574                         has_m_layout = true;
1575                         if (!list->m_layout) {
1576                                 fprintf(stderr, "error: %s: no mirror layout\n",
1577                                         progname);
1578                                 return -EINVAL;
1579                         }
1580                 }
1581
1582                 rc = llapi_layout_sanity(list->m_layout, false, true);
1583                 if (rc) {
1584                         llapi_layout_sanity_perror(rc);
1585                         return rc;
1586                 }
1587
1588                 list = list->m_next;
1589         }
1590
1591         if (has_m_file && has_m_layout) {
1592                 fprintf(stderr,
1593                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1594                         progname);
1595                 return -EINVAL;
1596         }
1597
1598         return 0;
1599 }
1600
1601 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1602 {
1603         __u32 mirror_flags = *(__u32 *)cbdata;
1604         uint32_t flags;
1605         int rc;
1606
1607         rc = llapi_layout_comp_flags_get(layout, &flags);
1608         if (rc < 0)
1609                 return rc;
1610
1611         if (!flags) {
1612                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1613                 if (rc)
1614                         return rc;
1615         }
1616
1617         return LLAPI_LAYOUT_ITER_CONT;
1618 }
1619
1620 /**
1621  * mirror_create() - Create a mirrored file.
1622  * @fname:        The file to be created.
1623  * @mirror_list:  A linked list that stores the mirror arguments.
1624  *
1625  * This function creates a mirrored file @fname with the mirror(s)
1626  * from @mirror_list.
1627  *
1628  * Return: 0 on success or a negative error code on failure.
1629  */
1630 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1631 {
1632         struct llapi_layout *layout = NULL;
1633         struct mirror_args *cur_mirror = NULL;
1634         uint16_t mirror_count = 0;
1635         int i = 0;
1636         int rc = 0;
1637
1638         rc = mirror_create_sanity_check(NULL, mirror_list);
1639         if (rc)
1640                 return rc;
1641
1642         cur_mirror = mirror_list;
1643         while (cur_mirror) {
1644                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1645                                                mirror_set_flags,
1646                                                &cur_mirror->m_flags);
1647                 if (rc) {
1648                         rc = -errno;
1649                         fprintf(stderr, "%s: failed to set mirror flags\n",
1650                                 progname);
1651                         goto error;
1652                 }
1653
1654                 for (i = 0; i < cur_mirror->m_count; i++) {
1655                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1656                         if (rc) {
1657                                 rc = -errno;
1658                                 fprintf(stderr,
1659                                         "error: %s: merge layout failed: %s\n",
1660                                         progname, strerror(errno));
1661                                 goto error;
1662                         }
1663                 }
1664                 mirror_count += cur_mirror->m_count;
1665                 cur_mirror = cur_mirror->m_next;
1666         }
1667
1668         if (!layout) {
1669                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1670                 return -EINVAL;
1671         }
1672
1673         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1674         if (rc) {
1675                 rc = -errno;
1676                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1677                         progname, strerror(errno));
1678                 goto error;
1679         }
1680
1681         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1682                                   layout);
1683         if (rc >= 0) {
1684                 close(rc);
1685                 rc = 0;
1686         }
1687
1688 error:
1689         llapi_layout_free(layout);
1690         return rc;
1691 }
1692
1693 /**
1694  * Compare files and check lease on @fd.
1695  *
1696  * \retval bytes number of bytes are the same
1697  */
1698 static ssize_t mirror_file_compare(int fd, int fdv)
1699 {
1700         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1701         void *buf;
1702         ssize_t bytes_done = 0;
1703         ssize_t bytes_read = 0;
1704
1705         buf = malloc(buflen * 2);
1706         if (!buf)
1707                 return -ENOMEM;
1708
1709         while (1) {
1710                 if (!llapi_lease_check(fd)) {
1711                         bytes_done = -EBUSY;
1712                         break;
1713                 }
1714
1715                 bytes_read = read(fd, buf, buflen);
1716                 if (bytes_read <= 0)
1717                         break;
1718
1719                 if (bytes_read != read(fdv, buf + buflen, buflen))
1720                         break;
1721
1722                 /*
1723                  * XXX: should compute the checksum on each buffer and then
1724                  * compare checksum to avoid cache collision
1725                  */
1726                 if (memcmp(buf, buf + buflen, bytes_read))
1727                         break;
1728
1729                 bytes_done += bytes_read;
1730         }
1731
1732         free(buf);
1733
1734         return bytes_done;
1735 }
1736
1737 static int mirror_extend_file(const char *fname, const char *victim_file,
1738                               enum mirror_flags mirror_flags)
1739 {
1740         int fd = -1;
1741         int fdv = -1;
1742         struct stat stbuf;
1743         struct stat stbuf_v;
1744         struct ll_ioc_lease *data = NULL;
1745         int rc;
1746
1747         fd = open(fname, O_RDWR);
1748         if (fd < 0) {
1749                 error_loc = "open source file";
1750                 rc = -errno;
1751                 goto out;
1752         }
1753
1754         fdv = open(victim_file, O_RDWR);
1755         if (fdv < 0) {
1756                 error_loc = "open target file";
1757                 rc = -errno;
1758                 goto out;
1759         }
1760
1761         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1762                 error_loc = "stat source or target file";
1763                 rc = -errno;
1764                 goto out;
1765         }
1766
1767         if (stbuf.st_dev != stbuf_v.st_dev) {
1768                 error_loc = "stat source and target file";
1769                 rc = -EXDEV;
1770                 goto out;
1771         }
1772
1773         /* mirrors should be of the same size */
1774         if (stbuf.st_size != stbuf_v.st_size) {
1775                 error_loc = "file sizes don't match";
1776                 rc = -EINVAL;
1777                 goto out;
1778         }
1779
1780         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1781         if (rc < 0) {
1782                 error_loc = "cannot get lease";
1783                 goto out;
1784         }
1785
1786         if (!(mirror_flags & MF_NO_VERIFY)) {
1787                 ssize_t ret;
1788                 /* mirrors should have the same contents */
1789                 ret = mirror_file_compare(fd, fdv);
1790                 if (ret != stbuf.st_size) {
1791                         error_loc = "file busy or contents don't match";
1792                         rc = ret < 0 ? ret : -EINVAL;
1793                         goto out;
1794                 }
1795         }
1796
1797         /* Get rid of caching pages from clients */
1798         rc = llapi_file_flush(fd);
1799         if (rc < 0) {
1800                 error_loc = "cannot get data version";
1801                 goto out;
1802         }
1803
1804         rc = llapi_file_flush(fdv);
1805         if (rc < 0) {
1806                 error_loc = "cannot get data version";
1807                 goto out;
1808         }
1809
1810         /* Make sure we keep original atime/mtime values */
1811         rc = migrate_copy_timestamps(fd, fdv);
1812         if (rc < 0) {
1813                 error_loc = "cannot copy timestamp";
1814                 goto out;
1815         }
1816
1817         /* Atomically put lease, merge layouts and close. */
1818         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1819         if (!data) {
1820                 error_loc = "memory allocation";
1821                 goto out;
1822         }
1823         data->lil_mode = LL_LEASE_UNLCK;
1824         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1825         data->lil_count = 1;
1826         data->lil_ids[0] = fdv;
1827         rc = llapi_lease_set(fd, data);
1828         if (rc < 0) {
1829                 error_loc = "cannot merge layout";
1830                 goto out;
1831         } else if (rc == 0) {
1832                 rc = -EBUSY;
1833                 error_loc = "lost lease lock";
1834                 goto out;
1835         }
1836         rc = 0;
1837
1838 out:
1839         if (data)
1840                 free(data);
1841         if (fd >= 0)
1842                 close(fd);
1843         if (fdv >= 0)
1844                 close(fdv);
1845         if (!rc)
1846                 (void) unlink(victim_file);
1847         if (rc < 0)
1848                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1849                         progname, fname, error_loc, strerror(-rc));
1850         return rc;
1851 }
1852
1853 static int mirror_extend_layout(char *name, struct llapi_layout *m_layout,
1854                                 bool inherit, uint32_t flags)
1855 {
1856         struct llapi_layout *f_layout = NULL;
1857         struct ll_ioc_lease *data = NULL;
1858         int fd = -1;
1859         int fdv = -1;
1860         int rc = 0;
1861
1862         if (inherit) {
1863                 f_layout = llapi_layout_get_by_path(name, 0);
1864                 if (!f_layout) {
1865                         fprintf(stderr, "%s: cannot get layout\n", progname);
1866                         goto out;
1867                 }
1868                 rc = llapi_layout_get_last_init_comp(f_layout);
1869                 if (rc) {
1870                         fprintf(stderr, "%s: cannot get the last init comp\n",
1871                                 progname);
1872                         goto out;
1873                 }
1874                 rc = llapi_layout_mirror_inherit(f_layout, m_layout);
1875                 if (rc) {
1876                         fprintf(stderr,
1877                                 "%s: cannot inherit from the last init comp\n",
1878                                 progname);
1879                         goto out;
1880                 }
1881         }
1882         llapi_layout_comp_flags_set(m_layout, flags);
1883         rc = migrate_open_files(name, MIGRATION_NONDIRECT, NULL, m_layout, &fd,
1884                                 &fdv);
1885         if (rc < 0)
1886                 goto out;
1887
1888         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1889         if (rc < 0) {
1890                 error_loc = "cannot get lease";
1891                 goto out;
1892         }
1893
1894         rc = migrate_nonblock(fd, fdv);
1895         if (rc < 0) {
1896                 llapi_lease_release(fd);
1897                 goto out;
1898         }
1899
1900         /* Atomically put lease, merge layouts and close. */
1901         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1902         if (!data) {
1903                 error_loc = "memory allocation";
1904                 goto out;
1905         }
1906         data->lil_mode = LL_LEASE_UNLCK;
1907         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1908         data->lil_count = 1;
1909         data->lil_ids[0] = fdv;
1910         rc = llapi_lease_set(fd, data);
1911         if (rc < 0) {
1912                 error_loc = "cannot merge layout";
1913                 goto out;
1914         } else if (rc == 0) {
1915                 rc = -EBUSY;
1916                 error_loc = "lost lease lock";
1917                 goto out;
1918         }
1919         rc = 0;
1920
1921 out:
1922         if (data)
1923                 free(data);
1924         if (fd >= 0)
1925                 close(fd);
1926         if (fdv >= 0)
1927                 close(fdv);
1928         if (rc < 0)
1929                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1930                         progname, name, error_loc, strerror(-rc));
1931         return rc;
1932 }
1933
1934 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1935                          enum mirror_flags mirror_flags)
1936 {
1937         int rc;
1938
1939         rc = mirror_create_sanity_check(fname, mirror_list);
1940         if (rc)
1941                 return rc;
1942
1943         while (mirror_list) {
1944                 if (mirror_list->m_file) {
1945                         rc = mirror_extend_file(fname, mirror_list->m_file,
1946                                                 mirror_flags);
1947                 } else {
1948                         __u32 mirror_count = mirror_list->m_count;
1949
1950                         while (mirror_count > 0) {
1951                                 rc = mirror_extend_layout(fname,
1952                                                         mirror_list->m_layout,
1953                                                         mirror_list->m_inherit,
1954                                                         mirror_list->m_flags);
1955                                 if (rc)
1956                                         break;
1957
1958                                 --mirror_count;
1959                         }
1960                 }
1961                 if (rc)
1962                         break;
1963
1964                 mirror_list = mirror_list->m_next;
1965         }
1966
1967         return rc;
1968 }
1969
1970 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
1971 {
1972         uint32_t id;
1973         int rc;
1974
1975         rc = llapi_layout_mirror_id_get(layout, &id);
1976         if (rc < 0)
1977                 return rc;
1978
1979         if ((__u16)id == *(__u16 *)cbdata)
1980                 return LLAPI_LAYOUT_ITER_STOP;
1981
1982         return LLAPI_LAYOUT_ITER_CONT;
1983 }
1984
1985 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
1986 {
1987         uint32_t id;
1988         int rc;
1989
1990         rc = llapi_layout_comp_id_get(layout, &id);
1991         if (rc < 0)
1992                 return rc;
1993
1994         if (id == *(__u32 *)cbdata)
1995                 return LLAPI_LAYOUT_ITER_STOP;
1996
1997         return LLAPI_LAYOUT_ITER_CONT;
1998 }
1999
2000 static int find_mirror_id_by_pool(struct llapi_layout *layout, void *cbdata)
2001 {
2002         char buf[LOV_MAXPOOLNAME + 1];
2003         struct pool_to_id_cbdata *d = (void *)cbdata;
2004         uint32_t id;
2005         int rc;
2006
2007         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
2008         if (rc < 0)
2009                 return rc;
2010         if (strcmp(d->pool, buf))
2011                 return LLAPI_LAYOUT_ITER_CONT;
2012
2013         rc = llapi_layout_mirror_id_get(layout, &id);
2014         if (rc < 0)
2015                 return rc;
2016         d->id = id;
2017
2018         return LLAPI_LAYOUT_ITER_STOP;
2019 }
2020
2021 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata)
2022 {
2023         char buf[LOV_MAXPOOLNAME + 1];
2024         struct pool_to_id_cbdata *d = (void *)cbdata;
2025         uint32_t id;
2026         int rc;
2027
2028         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
2029         if (rc < 0)
2030                 return rc;
2031         if (strcmp(d->pool, buf))
2032                 return LLAPI_LAYOUT_ITER_CONT;
2033
2034         rc = llapi_layout_comp_id_get(layout, &id);
2035         if (rc < 0)
2036                 return rc;
2037         d->id = id;
2038
2039         return LLAPI_LAYOUT_ITER_STOP;
2040 }
2041
2042 struct collect_ids_data {
2043         __u16   *cid_ids;
2044         int     cid_count;
2045         __u16   cid_exclude;
2046 };
2047
2048 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
2049 {
2050         struct collect_ids_data *cid = cbdata;
2051         uint32_t id;
2052         int rc;
2053
2054         rc = llapi_layout_mirror_id_get(layout, &id);
2055         if (rc < 0)
2056                 return rc;
2057
2058         if ((__u16)id != cid->cid_exclude) {
2059                 int i;
2060
2061                 for (i = 0; i < cid->cid_count; i++) {
2062                         /* already collected the mirror id */
2063                         if (id == cid->cid_ids[i])
2064                                 return LLAPI_LAYOUT_ITER_CONT;
2065                 }
2066                 cid->cid_ids[cid->cid_count] = id;
2067                 cid->cid_count++;
2068         }
2069
2070         return LLAPI_LAYOUT_ITER_CONT;
2071 }
2072
2073 /**
2074  * last_non_stale_mirror() - Check if a mirror is the last non-stale mirror.
2075  * @mirror_id: Mirror id to be checked.
2076  * @layout:    Mirror component list.
2077  *
2078  * This function checks if a mirror with specified @mirror_id is the last
2079  * non-stale mirror of a layout @layout.
2080  *
2081  * Return: true or false.
2082  */
2083 static inline
2084 bool last_non_stale_mirror(__u16 mirror_id, struct llapi_layout *layout)
2085 {
2086         __u16 mirror_ids[128] = { 0 };
2087         struct collect_ids_data cid = { .cid_ids = mirror_ids,
2088                                         .cid_count = 0,
2089                                         .cid_exclude = mirror_id, };
2090         int i;
2091
2092         llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
2093
2094         for (i = 0; i < cid.cid_count; i++) {
2095                 struct llapi_resync_comp comp_array[1024] = { { 0 } };
2096                 int comp_size = 0;
2097
2098                 comp_size = llapi_mirror_find_stale(layout, comp_array,
2099                                                     ARRAY_SIZE(comp_array),
2100                                                     &mirror_ids[i], 1);
2101                 if (comp_size == 0)
2102                         return false;
2103         }
2104
2105         return true;
2106 }
2107
2108 static int mirror_split(const char *fname, __u32 id, const char *pool,
2109                         enum mirror_flags mflags, const char *victim_file)
2110 {
2111         struct llapi_layout *layout;
2112         char parent[PATH_MAX];
2113         char victim[PATH_MAX];
2114         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
2115         char *ptr;
2116         struct ll_ioc_lease *data;
2117         uint16_t mirror_count;
2118         __u32 mirror_id;
2119         int mdt_index;
2120         int fd, fdv;
2121         int rc;
2122
2123         /* check fname contains mirror with mirror_id/comp_id */
2124         layout = llapi_layout_get_by_path(fname, 0);
2125         if (!layout) {
2126                 fprintf(stderr,
2127                         "error %s: file '%s' couldn't get layout\n",
2128                         progname, fname);
2129                 return -EINVAL;
2130         }
2131
2132         rc = llapi_layout_sanity(layout, false, true);
2133         if (rc) {
2134                 llapi_layout_sanity_perror(rc);
2135                 goto free_layout;
2136         }
2137
2138         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
2139         if (rc) {
2140                 fprintf(stderr,
2141                         "error %s: file '%s' couldn't get mirror count\n",
2142                         progname, fname);
2143                 goto free_layout;
2144         }
2145         if (mirror_count < 2) {
2146                 fprintf(stderr,
2147                         "error %s: file '%s' has %d component, cannot split\n",
2148                         progname, fname, mirror_count);
2149                 goto free_layout;
2150         }
2151
2152         if (mflags & MF_COMP_POOL) {
2153                 struct pool_to_id_cbdata data = { .pool = pool };
2154
2155                 rc = llapi_layout_comp_iterate(layout, find_mirror_id_by_pool,
2156                                                &data);
2157                 mirror_id = data.id;
2158         } else if (mflags & MF_COMP_ID) {
2159                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
2160                 mirror_id = mirror_id_of(id);
2161         } else {
2162                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
2163                 mirror_id = id;
2164         }
2165         if (rc < 0) {
2166                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
2167                         progname, fname);
2168                 goto free_layout;
2169         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
2170                 if (mflags & MF_COMP_POOL) {
2171                         fprintf(stderr,
2172                                 "error %s: file '%s' does not contain mirror with pool '%s'\n",
2173                                 progname, fname, pool);
2174                         goto free_layout;
2175                 } else if (mflags & MF_COMP_ID) {
2176                         fprintf(stderr,
2177                                 "error %s: file '%s' does not contain mirror with comp-id %u\n",
2178                                 progname, fname, id);
2179                         goto free_layout;
2180                 } else {
2181                         fprintf(stderr,
2182                                 "error %s: file '%s' does not contain mirror with id %u\n",
2183                                 progname, fname, id);
2184                         goto free_layout;
2185                 }
2186         }
2187
2188         fd = open(fname, O_RDWR);
2189         if (fd < 0) {
2190                 fprintf(stderr,
2191                         "error %s: open file '%s' failed: %s\n",
2192                         progname, fname, strerror(errno));
2193                 goto free_layout;
2194         }
2195
2196         /* get victim file directory pathname */
2197         if (strlen(fname) > sizeof(parent) - 1) {
2198                 fprintf(stderr, "error %s: file name of '%s' too long\n",
2199                         progname, fname);
2200                 rc = -ERANGE;
2201                 goto close_fd;
2202         }
2203         strncpy(parent, fname, sizeof(parent));
2204         ptr = strrchr(parent, '/');
2205         if (!ptr) {
2206                 if (!getcwd(parent, sizeof(parent))) {
2207                         fprintf(stderr, "error %s: getcwd failed: %s\n",
2208                                 progname, strerror(errno));
2209                         rc = -errno;
2210                         goto close_fd;
2211                 }
2212         } else {
2213                 if (ptr == parent)
2214                         ptr = parent + 1;
2215                 *ptr = '\0';
2216         }
2217
2218         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
2219         if (rc < 0) {
2220                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
2221                         progname, fname);
2222                 goto close_fd;
2223         }
2224
2225         if (!victim_file) {
2226                 /* use a temp file to store the splitted layout */
2227                 if (mflags & MF_DESTROY) {
2228                         if (last_non_stale_mirror(mirror_id, layout)) {
2229                                 rc = -EUCLEAN;
2230                                 fprintf(stderr,
2231                                         "%s: cannot destroy the last non-stale mirror of file '%s'\n",
2232                                         progname, fname);
2233                                 goto close_fd;
2234                         }
2235
2236                         fdv = llapi_create_volatile_idx(parent, mdt_index,
2237                                                         O_LOV_DELAY_CREATE);
2238                 } else {
2239                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
2240                                  fname, mirror_id);
2241                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
2242                 }
2243         } else {
2244                 /* user specified victim file */
2245                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
2246         }
2247
2248         if (fdv < 0) {
2249                 fprintf(stderr,
2250                         "error %s: create victim file failed: %s\n",
2251                         progname, strerror(errno));
2252                 goto close_fd;
2253         }
2254
2255         /* get lease lock of fname */
2256         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
2257         if (rc < 0) {
2258                 fprintf(stderr,
2259                         "error %s: cannot get lease of file '%s': %d\n",
2260                         progname, fname, rc);
2261                 goto close_victim;
2262         }
2263
2264         /* Atomatically put lease, split layouts and close. */
2265         data = malloc(offsetof(typeof(*data), lil_ids[2]));
2266         if (!data) {
2267                 rc = -ENOMEM;
2268                 goto close_victim;
2269         }
2270
2271         data->lil_mode = LL_LEASE_UNLCK;
2272         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
2273         data->lil_count = 2;
2274         data->lil_ids[0] = fdv;
2275         data->lil_ids[1] = mirror_id;
2276         rc = llapi_lease_set(fd, data);
2277         if (rc <= 0) {
2278                 if (rc == 0) /* lost lease lock */
2279                         rc = -EBUSY;
2280                 fprintf(stderr,
2281                         "error %s: cannot split '%s': %s\n",
2282                         progname, fname, strerror(-rc));
2283         } else {
2284                 rc = 0;
2285         }
2286         free(data);
2287
2288 close_victim:
2289         close(fdv);
2290 close_fd:
2291         close(fd);
2292 free_layout:
2293         llapi_layout_free(layout);
2294         return rc;
2295 }
2296
2297 static inline
2298 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
2299                            __u16 *mirror_ids, int ids_nr);
2300
2301 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
2302                               __u64 migration_flags,
2303                               struct llapi_stripe_param *param,
2304                               struct llapi_layout *layout)
2305 {
2306         struct ll_ioc_lease *data = NULL;
2307         int rc;
2308
2309         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
2310         if (rc < 0) {
2311                 error_loc = "cannot get lease";
2312                 goto out_close;
2313         }
2314
2315         /* Atomically put lease, merge layouts, resync and close. */
2316         data = calloc(1, offsetof(typeof(*data), lil_ids[1024]));
2317         if (!data) {
2318                 error_loc = "memory allocation";
2319                 goto out_close;
2320         }
2321         data->lil_mode = LL_LEASE_UNLCK;
2322         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
2323         data->lil_count = 1;
2324         data->lil_ids[0] = fdv;
2325         rc = llapi_lease_set(fd, data);
2326         if (rc < 0) {
2327                 error_loc = "cannot merge layout";
2328                 goto out_close;
2329         } else if (rc == 0) {
2330                 rc = -EBUSY;
2331                 error_loc = "lost lease lock";
2332                 goto out_close;
2333         }
2334         close(fd);
2335         close(fdv);
2336
2337         rc = lfs_mirror_resync_file(name, data, NULL, 0);
2338         if (rc) {
2339                 error_loc = "cannot resync file";
2340                 goto out;
2341         }
2342
2343         /* delete first mirror now */
2344         rc = mirror_split(name, 1, NULL, MF_DESTROY, NULL);
2345         if (rc < 0)
2346                 error_loc = "cannot delete old layout";
2347         goto out;
2348
2349 out_close:
2350         close(fd);
2351         close(fdv);
2352 out:
2353         if (rc < 0)
2354                 fprintf(stderr, "error: %s: %s: %s: %s\n",
2355                         progname, name, error_loc, strerror(-rc));
2356         else if (migration_flags & MIGRATION_VERBOSE)
2357                 printf("%s\n", name);
2358         if (data)
2359                 free(data);
2360         return rc;
2361 }
2362
2363 /**
2364  * Parse a string containing an target index list into an array of integers.
2365  *
2366  * The input string contains a comma delimited list of individual
2367  * indices and ranges, for example "1,2-4,7". Add the indices into the
2368  * \a tgts array and remove duplicates.
2369  *
2370  * \param[out] tgts             array to store indices in
2371  * \param[in] size              size of \a tgts array
2372  * \param[in] offset            starting index in \a tgts
2373  * \param[in] arg               string containing OST index list
2374  * \param[in/out] overstriping  index list may contain duplicates
2375  *
2376  * \retval positive    number of indices in \a tgts
2377  * \retval -EINVAL     unable to parse \a arg
2378  */
2379 static int parse_targets(__u32 *tgts, int size, int offset, char *arg,
2380                          unsigned long long *pattern)
2381 {
2382         int rc;
2383         int nr = offset;
2384         int slots = size - offset;
2385         char *ptr = NULL;
2386         bool overstriped = false;
2387         bool end_of_loop;
2388
2389         if (!arg)
2390                 return -EINVAL;
2391
2392         end_of_loop = false;
2393         while (!end_of_loop) {
2394                 int start_index = 0;
2395                 int end_index = 0;
2396                 int i;
2397                 char *endptr = NULL;
2398
2399                 rc = -EINVAL;
2400
2401                 ptr = strchrnul(arg, ',');
2402
2403                 end_of_loop = *ptr == '\0';
2404                 *ptr = '\0';
2405
2406                 start_index = strtol(arg, &endptr, 0);
2407                 if (endptr == arg) /* no data at all */
2408                         break;
2409                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
2410                         break;
2411
2412                 end_index = start_index;
2413                 if (*endptr == '-') {
2414                         end_index = strtol(endptr + 1, &endptr, 0);
2415                         if (*endptr != '\0')
2416                                 break;
2417                         if (end_index < start_index)
2418                                 break;
2419                 }
2420
2421                 for (i = start_index; i <= end_index && slots > 0; i++) {
2422                         int j;
2423
2424                         /* remove duplicate */
2425                         for (j = 0; j < offset; j++) {
2426                                 if (tgts[j] == i && pattern &&
2427                                     *pattern == LLAPI_LAYOUT_OVERSTRIPING)
2428                                         overstriped = true;
2429                                 else if (tgts[j] == i)
2430                                         return -EINVAL;
2431                         }
2432
2433                         j = offset;
2434
2435                         if (j == offset) { /* check complete */
2436                                 tgts[nr++] = i;
2437                                 --slots;
2438                         }
2439                 }
2440
2441                 if (slots == 0 && i < end_index)
2442                         break;
2443
2444                 *ptr = ',';
2445                 arg = ++ptr;
2446                 offset = nr;
2447                 rc = 0;
2448         }
2449         if (!end_of_loop && ptr)
2450                 *ptr = ',';
2451
2452         if (!overstriped && pattern)
2453                 *pattern = LLAPI_LAYOUT_DEFAULT;
2454
2455         return rc < 0 ? rc : nr;
2456 }
2457
2458 struct lfs_setstripe_args {
2459         unsigned long long       lsa_comp_end;
2460         unsigned long long       lsa_stripe_size;
2461         unsigned long long       lsa_extension_size;
2462         long long                lsa_stripe_count;
2463         long long                lsa_stripe_off;
2464         __u32                    lsa_comp_flags;
2465         __u32                    lsa_comp_neg_flags;
2466         unsigned long long       lsa_pattern;
2467         unsigned int             lsa_mirror_count;
2468         int                      lsa_nr_tgts;
2469         bool                     lsa_first_comp;
2470         bool                     lsa_extension_comp;
2471         __u32                   *lsa_tgts;
2472         char                    *lsa_pool_name;
2473 };
2474
2475 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2476 {
2477         unsigned int mirror_count = lsa->lsa_mirror_count;
2478         bool first_comp = lsa->lsa_first_comp;
2479
2480         memset(lsa, 0, sizeof(*lsa));
2481
2482         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2483         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2484         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2485         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2486         lsa->lsa_pool_name = NULL;
2487
2488         lsa->lsa_mirror_count = mirror_count;
2489         lsa->lsa_first_comp = first_comp;
2490 }
2491
2492 /**
2493  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2494  * @lsa: Stripe options to be initialized and inherited.
2495  *
2496  * This function initializes stripe options in @lsa and inherit
2497  * stripe_size, stripe_count and OST pool_name options.
2498  *
2499  * Return: void.
2500  */
2501 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2502 {
2503         unsigned long long stripe_size;
2504         long long stripe_count;
2505         char *pool_name = NULL;
2506
2507         stripe_size = lsa->lsa_stripe_size;
2508         stripe_count = lsa->lsa_stripe_count;
2509         pool_name = lsa->lsa_pool_name;
2510
2511         setstripe_args_init(lsa);
2512
2513         lsa->lsa_stripe_size = stripe_size;
2514         lsa->lsa_stripe_count = stripe_count;
2515         lsa->lsa_pool_name = pool_name;
2516 }
2517
2518 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2519 {
2520         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2521                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2522                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2523                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2524                 lsa->lsa_comp_end != 0);
2525 }
2526
2527 /**
2528  * comp_args_to_layout() - Create or extend a composite layout.
2529  * @composite:       Pointer to the composite layout.
2530  * @lsa:             Stripe options for the new component.
2531  *
2532  * This function creates or extends a composite layout by adding a new
2533  * component with stripe options from @lsa.
2534  *
2535  * Return: 0 on success or an error code on failure.
2536  */
2537 static int comp_args_to_layout(struct llapi_layout **composite,
2538                                struct lfs_setstripe_args *lsa,
2539                                bool set_extent)
2540 {
2541         struct llapi_layout *layout = *composite;
2542         uint64_t prev_end = 0;
2543         uint64_t size;
2544         int i = 0, rc;
2545
2546 new_comp:
2547         if (!layout) {
2548                 layout = llapi_layout_alloc();
2549                 if (!layout) {
2550                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2551                                 strerror(errno));
2552                         errno = ENOMEM;
2553                         return -1;
2554                 }
2555                 *composite = layout;
2556                 lsa->lsa_first_comp = true;
2557         } else {
2558                 uint64_t start;
2559
2560                 /*
2561                  * Get current component extent, current component
2562                  * must be the tail component.
2563                  */
2564                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2565                 if (rc) {
2566                         fprintf(stderr, "Get comp extent failed. %s\n",
2567                                 strerror(errno));
2568                         return rc;
2569                 }
2570
2571                 if (lsa->lsa_first_comp) {
2572                         prev_end = 0;
2573                         rc = llapi_layout_add_first_comp(layout);
2574                 } else {
2575                         rc = llapi_layout_comp_add(layout);
2576                 }
2577                 if (rc) {
2578                         fprintf(stderr, "Add component failed. %s\n",
2579                                 strerror(errno));
2580                         return rc;
2581                 }
2582         }
2583
2584         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2585         if (rc) {
2586                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2587                         lsa->lsa_comp_flags, strerror(errno));
2588                 return rc;
2589         }
2590
2591         if (set_extent) {
2592                 uint64_t comp_end = lsa->lsa_comp_end;
2593
2594                 /*
2595                  * The extendable component is 0-length, so it can be removed
2596                  * if there is insufficient space to extend it.
2597                  */
2598                 if (lsa->lsa_extension_comp)
2599                         comp_end = prev_end;
2600
2601                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2602                                                   comp_end);
2603                 if (rc) {
2604                         fprintf(stderr, "Set extent [%lu, %lu) failed. %s\n",
2605                                 prev_end, comp_end, strerror(errno));
2606                         return rc;
2607                 }
2608         }
2609         /* reset lsa_first_comp */
2610         lsa->lsa_first_comp = false;
2611
2612         /* Data-on-MDT component setting */
2613         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2614                 /*
2615                  * In case of Data-on-MDT patterns the only extra option
2616                  * applicable is stripe size option.
2617                  */
2618                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2619                         fprintf(stderr,
2620                                 "Option 'stripe-count' can't be specified with Data-on-MDT component: %lld\n",
2621                                 lsa->lsa_stripe_count);
2622                         errno = EINVAL;
2623                         return -1;
2624                 }
2625                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT) {
2626                         fprintf(stderr,
2627                                 "Option 'stripe-size' can't be specified with Data-on-MDT component: %llu\n",
2628                                 lsa->lsa_stripe_size);
2629                         errno = EINVAL;
2630                         return -1;
2631                 }
2632                 if (lsa->lsa_nr_tgts != 0) {
2633                         fprintf(stderr,
2634                                 "Option 'ost-list' can't be specified with Data-on-MDT component: '%i'\n",
2635                                 lsa->lsa_nr_tgts);
2636                         errno = EINVAL;
2637                         return -1;
2638                 }
2639                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2640                         fprintf(stderr,
2641                                 "Option 'stripe-offset' can't be specified with Data-on-MDT component: %lld\n",
2642                                 lsa->lsa_stripe_off);
2643                         errno = EINVAL;
2644                         return -1;
2645                 }
2646                 if (lsa->lsa_pool_name != 0) {
2647                         fprintf(stderr,
2648                                 "Option 'pool' can't be specified with Data-on-MDT component: '%s'\n",
2649                                 lsa->lsa_pool_name);
2650                         errno = EINVAL;
2651                         return -1;
2652                 }
2653
2654                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2655                 if (rc) {
2656                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2657                                 lsa->lsa_pattern,
2658                                 strerror(errno));
2659                         return rc;
2660                 }
2661                 /* Data-on-MDT component has always single stripe up to end */
2662                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2663         } else if (lsa->lsa_pattern == LLAPI_LAYOUT_OVERSTRIPING) {
2664                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2665                 if (rc) {
2666                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2667                                 lsa->lsa_pattern,
2668                                 strerror(errno));
2669                         return rc;
2670                 }
2671         }
2672
2673         size = lsa->lsa_comp_flags & LCME_FL_EXTENSION ?
2674                 lsa->lsa_extension_size : lsa->lsa_stripe_size;
2675
2676         if (lsa->lsa_comp_flags & LCME_FL_EXTENSION)
2677                 rc = llapi_layout_extension_size_set(layout, size);
2678         else
2679                 rc = llapi_layout_stripe_size_set(layout, size);
2680
2681         if (rc) {
2682                 fprintf(stderr, "Set stripe size %lu failed: %s\n",
2683                         size, strerror(errno));
2684                 return rc;
2685         }
2686
2687         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2688         if (rc) {
2689                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2690                         lsa->lsa_stripe_count, strerror(errno));
2691                 return rc;
2692         }
2693
2694         if (lsa->lsa_pool_name) {
2695                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2696                 if (rc) {
2697                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2698                                 lsa->lsa_pool_name, strerror(errno));
2699                         return rc;
2700                 }
2701         } else {
2702                 rc = llapi_layout_pool_name_set(layout, "");
2703                 if (rc) {
2704                         fprintf(stderr, "Clear pool name failed: %s\n",
2705                                 strerror(errno));
2706                         return rc;
2707                 }
2708         }
2709
2710         if (lsa->lsa_nr_tgts > 0) {
2711                 if (lsa->lsa_stripe_count > 0 &&
2712                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2713                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2714                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2715                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2716                                 lsa->lsa_stripe_count,
2717                                 lsa->lsa_nr_tgts);
2718                         errno = EINVAL;
2719                         return -1;
2720                 }
2721                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2722                         rc = llapi_layout_ost_index_set(layout, i,
2723                                                         lsa->lsa_tgts[i]);
2724                         if (rc)
2725                                 break;
2726                 }
2727         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2728                    lsa->lsa_stripe_off != -1) {
2729                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2730         }
2731         if (rc) {
2732                 fprintf(stderr, "Set ost index %d failed. %s\n",
2733                         i, strerror(errno));
2734                 return rc;
2735         }
2736
2737         /* Create the second, virtual component of extension space */
2738         if (lsa->lsa_extension_comp) {
2739                 lsa->lsa_comp_flags |= LCME_FL_EXTENSION;
2740                 lsa->lsa_extension_comp = false;
2741                 goto new_comp;
2742         }
2743
2744         return rc;
2745 }
2746
2747 static int build_component(struct llapi_layout **layout,
2748                            struct lfs_setstripe_args *lsa, bool set_extent)
2749 {
2750         int rc;
2751
2752         rc = comp_args_to_layout(layout, lsa, set_extent);
2753         if (rc)
2754                 return rc;
2755
2756         if (lsa->lsa_mirror_count > 0) {
2757                 rc = llapi_layout_mirror_count_set(*layout,
2758                                                    lsa->lsa_mirror_count);
2759                 if (rc)
2760                         return rc;
2761
2762                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2763                 if (rc)
2764                         return rc;
2765                 lsa->lsa_mirror_count = 0;
2766         }
2767
2768         return rc;
2769 }
2770
2771 static int build_prev_component(struct llapi_layout **layout,
2772                                 struct lfs_setstripe_args *prev,
2773                                 struct lfs_setstripe_args *lsa,
2774                                 bool set_extent)
2775 {
2776         int extension = lsa->lsa_comp_flags & LCME_FL_EXTENSION;
2777         int rc;
2778
2779         if (prev->lsa_stripe_size) {
2780                 if (extension) {
2781                         prev->lsa_comp_end = lsa->lsa_comp_end;
2782                         prev->lsa_extension_size = lsa->lsa_extension_size;
2783                         prev->lsa_extension_comp = true;
2784                 }
2785
2786                 rc = build_component(layout, prev, true);
2787                 if (rc)
2788                         return rc;
2789         }
2790
2791         /*
2792          * Copy lsa to previous lsa;
2793          * if this is an extension component, make the previous invalid;
2794          */
2795         if (extension)
2796                 prev->lsa_stripe_size = 0;
2797         else
2798                 *prev = *lsa;
2799
2800         return 0;
2801 }
2802
2803 static int build_layout_from_yaml_node(struct cYAML *node,
2804                                        struct llapi_layout **layout,
2805                                        struct lfs_setstripe_args *lsa,
2806                                        struct lfs_setstripe_args *prevp)
2807 {
2808         struct lfs_setstripe_args prev = { 0 };
2809         __u32 *osts = lsa->lsa_tgts;
2810         char *string;
2811         int rc = 0;
2812
2813         if (!prevp)
2814                 prevp = &prev;
2815
2816         while (node) {
2817                 string = node->cy_string;
2818
2819                 if (node->cy_type == CYAML_TYPE_OBJECT) {
2820                         /* go deep to sub blocks */
2821                         if (string && !strncmp(string, "component", 9) &&
2822                             strncmp(string, "component0", 10) &&
2823                             strncmp(string, "components", 10)) {
2824                                 rc = build_prev_component(layout, prevp, lsa,
2825                                                           true);
2826                                 if (rc)
2827                                         return rc;
2828
2829                                 /* initialize lsa. */
2830                                 setstripe_args_init(lsa);
2831                                 lsa->lsa_first_comp = false;
2832                                 lsa->lsa_tgts = osts;
2833                         }
2834
2835                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2836                                                          lsa, prevp);
2837                         if (rc)
2838                                 return rc;
2839                 } else {
2840                         if (!node->cy_string)
2841                                 return -EINVAL;
2842
2843                         /* skip leading lmm_ if present, to simplify parsing */
2844                         if (strncmp(string, "lmm_", 4) == 0)
2845                                 string += 4;
2846
2847                         if (node->cy_type == CYAML_TYPE_STRING) {
2848                                 if (!strcmp(string, "lcme_extent.e_end")) {
2849                                         if (!strcmp(node->cy_valuestring, "EOF") ||
2850                                             !strcmp(node->cy_valuestring, "eof"))
2851                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2852                                 } else if (!strcmp(string, "pool")) {
2853                                         lsa->lsa_pool_name = node->cy_valuestring;
2854                                 } else if (!strcmp(string, "pattern")) {
2855                                         if (!strcmp(node->cy_valuestring, "mdt"))
2856                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2857                                         if (!strcmp(node->cy_valuestring,
2858                                                     "raid0,overstriped"))
2859                                                 lsa->lsa_pattern =
2860                                                         LLAPI_LAYOUT_OVERSTRIPING;
2861                                 } else if (!strcmp(string, "lcme_flags")) {
2862                                         rc = comp_str2flags(node->cy_valuestring,
2863                                                             &lsa->lsa_comp_flags,
2864                                                             &lsa->lsa_comp_neg_flags);
2865                                         if (rc)
2866                                                 return rc;
2867                                         /*
2868                                          * Only template flags have meaning in
2869                                          * the layout for a new file
2870                                          */
2871                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
2872                                 }
2873                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2874                                 if (!strcmp(string, "lcm_mirror_count")) {
2875                                         lsa->lsa_mirror_count = node->cy_valueint;
2876                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
2877                                         if (node->cy_valueint == 0)
2878                                                 lsa->lsa_first_comp = true;
2879                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
2880                                         if (node->cy_valueint == -1)
2881                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2882                                         else
2883                                                 lsa->lsa_comp_end = node->cy_valueint;
2884                                 } else if (!strcmp(string, "stripe_count")) {
2885                                         lsa->lsa_stripe_count = node->cy_valueint;
2886                                 } else if (!strcmp(string, "stripe_size")) {
2887                                         lsa->lsa_stripe_size = node->cy_valueint;
2888                                 } else if (!strcmp(string, "extension_size")) {
2889                                         lsa->lsa_extension_size = node->cy_valueint;
2890                                         lsa->lsa_extension_comp = true;
2891                                 } else if (!strcmp(string, "stripe_offset")) {
2892                                         lsa->lsa_stripe_off = node->cy_valueint;
2893                                 } else if (!strcmp(string, "l_ost_idx")) {
2894                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
2895                                         lsa->lsa_nr_tgts++;
2896                                 }
2897                         }
2898                 }
2899                 node = node->cy_next;
2900         }
2901
2902         if (prevp == &prev) {
2903                 rc = build_prev_component(layout, prevp, lsa, true);
2904                 if (rc)
2905                         return rc;
2906
2907                 if (!(lsa->lsa_comp_flags & LCME_FL_EXTENSION))
2908                         rc = build_component(layout, lsa, *layout != NULL);
2909         }
2910
2911         return rc;
2912 }
2913
2914 static int lfs_comp_create_from_yaml(char *template,
2915                                      struct llapi_layout **layout,
2916                                      struct lfs_setstripe_args *lsa,
2917                                      __u32 *osts)
2918 {
2919         struct cYAML *tree = NULL, *err_rc = NULL;
2920         int rc = 0;
2921
2922         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
2923         if (!tree) {
2924                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
2925                         progname, template);
2926                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
2927                                   "can't parse", &err_rc);
2928                 cYAML_print_tree2file(stderr, err_rc);
2929                 cYAML_free_tree(err_rc);
2930                 rc = -EINVAL;
2931                 goto err;
2932         }
2933
2934         /* initialize lsa for plain file */
2935         setstripe_args_init(lsa);
2936         lsa->lsa_tgts = osts;
2937
2938         rc = build_layout_from_yaml_node(tree, layout, lsa, NULL);
2939         if (rc) {
2940                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
2941                         progname, template);
2942                 goto err;
2943         }
2944         /* clean clean lsa */
2945         setstripe_args_init(lsa);
2946
2947 err:
2948         if (tree)
2949                 cYAML_free_tree(tree);
2950         return rc;
2951 }
2952
2953 /**
2954  * Get the extension size from the next (SEL) component and extend the
2955  * current component on it. The start of the next component is to be
2956  * adjusted as well.
2957  *
2958  * \param[in] layout    the current layout
2959  * \param[in] start     the start of the current component
2960  * \param[in,out] end   the end of the current component
2961  * \param[in] offset    the offset to adjust the end position to instead of
2962  *                      extension size
2963  *
2964  * \retval 0            - extended successfully
2965  * \retval < 0          - error
2966  */
2967 static int layout_extend_comp(struct llapi_layout *layout,
2968                               uint64_t start, uint64_t *end,
2969                               uint64_t offset)
2970 {
2971         uint64_t size, next_start, next_end;
2972         int rc;
2973
2974         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_NEXT);
2975         if (rc < 0) {
2976                 fprintf(stderr,
2977                         "%s setstripe: cannot move component cursor: %s\n",
2978                         progname, strerror(errno));
2979                 return rc;
2980         }
2981
2982         /*
2983          * Even if the @size will not be used below, this will fail if
2984          * this is not a SEL component - a good confirmation we are
2985          * working on right components.
2986          */
2987         rc = llapi_layout_extension_size_get(layout, &size);
2988         if (rc < 0) {
2989                 fprintf(stderr,
2990                         "%s setstripe: cannot get component ext size: %s\n",
2991                         progname, strerror(errno));
2992                 return rc;
2993         }
2994
2995         rc = llapi_layout_comp_extent_get(layout, &next_start, &next_end);
2996         if (rc) {
2997                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2998                         progname, strerror(errno));
2999                 return rc;
3000         }
3001
3002         next_start += offset ?: size;
3003         rc = llapi_layout_comp_extent_set(layout, next_start, next_end);
3004         if (rc) {
3005                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
3006                         progname, strerror(errno));
3007                 return rc;
3008         }
3009
3010         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_PREV);
3011         if (rc < 0) {
3012                 fprintf(stderr,
3013                         "%s setstripe: cannot move component cursor: %s\n",
3014                         progname, strerror(errno));
3015                 return rc;
3016         }
3017
3018         *end += offset ?: size;
3019         rc = llapi_layout_comp_extent_set(layout, start, *end);
3020         if (rc) {
3021                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
3022                         progname, strerror(errno));
3023                 return rc;
3024         }
3025
3026         return 0;
3027 }
3028
3029 /**
3030  * In 'lfs setstripe --component-add' mode, we need to fetch the extent
3031  * end of the last component in the existing file, and adjust the
3032  * first extent start of the components to be added accordingly.
3033  *
3034  * In the create mode, we need to check if the first component is an extendable
3035  * SEL component and extend its length to the extension size (first component
3036  * of the PFL file is initialised at the create time, cannot be 0-lenght.
3037  */
3038 static int layout_adjust_first_extent(char *fname, struct llapi_layout *layout,
3039                                       bool comp_add)
3040 {
3041         struct llapi_layout *head;
3042         uint64_t start = 0, prev_end = 0;
3043         uint64_t end;
3044         int rc, ret = 0;
3045
3046         if (!layout || !(comp_add || llapi_layout_is_composite(layout)))
3047                 return 0;
3048
3049         errno = 0;
3050         while (comp_add) {
3051                 head = llapi_layout_get_by_path(fname, 0);
3052                 if (!head) {
3053                         fprintf(stderr,
3054                                 "%s setstripe: cannot read layout from '%s': %s\n",
3055                                 progname, fname, strerror(errno));
3056                         return -EINVAL;
3057                 } else if (errno == ENODATA) {
3058                         /*
3059                          * file without LOVEA, this component-add will be turned
3060                          * into a component-create.
3061                          */
3062                         llapi_layout_free(head);
3063                         ret = -ENODATA;
3064
3065                         /*
3066                          * the new layout will be added to an empty one, it
3067                          * still needs to be adjusted below
3068                          */
3069                         comp_add = 0;
3070                         break;
3071                 } else if (!llapi_layout_is_composite(head)) {
3072                         fprintf(stderr,
3073                                 "%s setstripe: '%s' not a composite file\n",
3074                                 progname, fname);
3075                         llapi_layout_free(head);
3076                         return -EINVAL;
3077                 }
3078
3079                 rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
3080                 if (rc) {
3081                         fprintf(stderr,
3082                                 "%s setstripe: cannot get prev extent: %s\n",
3083                                 progname, strerror(errno));
3084                         llapi_layout_free(head);
3085                         return rc;
3086                 }
3087
3088                 llapi_layout_free(head);
3089                 break;
3090         }
3091
3092         /* Make sure we use the first component of the layout to be added. */
3093         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
3094         if (rc < 0) {
3095                 fprintf(stderr,
3096                         "%s setstripe: cannot move component cursor: %s\n",
3097                         progname, strerror(errno));
3098                 return rc;
3099         }
3100
3101         rc = llapi_layout_comp_extent_get(layout, &start, &end);
3102         if (rc) {
3103                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3104                         progname, strerror(errno));
3105                 return rc;
3106         }
3107
3108         if (start == 0 && end == 0) {
3109                 rc = layout_extend_comp(layout, start, &end,
3110                                         comp_add ? prev_end : 0);
3111                 if (rc)
3112                         return rc;
3113         }
3114
3115         if (start > prev_end || end < prev_end) {
3116                 fprintf(stderr,
3117                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
3118                         progname, start, end, prev_end);
3119                 return -EINVAL;
3120         }
3121
3122         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
3123         if (rc) {
3124                 fprintf(stderr,
3125                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
3126                         progname, prev_end, end, strerror(errno));
3127                 return rc;
3128         }
3129
3130         return ret;
3131 }
3132
3133 static int mirror_adjust_first_extents(struct mirror_args *list)
3134 {
3135         int rc = 0;
3136
3137         if (!list)
3138                 return 0;
3139
3140         while (list) {
3141                 rc = layout_adjust_first_extent(NULL, list->m_layout, false);
3142                 if (rc)
3143                         break;
3144                 list = list->m_next;
3145         }
3146
3147         return rc;
3148 }
3149
3150 static inline bool arg_is_eof(char *arg)
3151 {
3152         return !strncmp(arg, "-1", strlen("-1")) ||
3153                !strncmp(arg, "EOF", strlen("EOF")) ||
3154                !strncmp(arg, "eof", strlen("eof"));
3155 }
3156
3157 /**
3158  * lfs_mirror_alloc() - Allocate a mirror argument structure.
3159  *
3160  * Return: Valid mirror_args pointer on success and
3161  *         NULL if memory allocation fails.
3162  */
3163 static struct mirror_args *lfs_mirror_alloc(void)
3164 {
3165         struct mirror_args *mirror = NULL;
3166
3167         while (1) {
3168                 mirror = calloc(1, sizeof(*mirror));
3169                 if (mirror) {
3170                         mirror->m_inherit = false;
3171                         break;
3172                 }
3173
3174                 sleep(1);
3175         }
3176
3177         return mirror;
3178 }
3179
3180 /**
3181  * lfs_mirror_free() - Free memory allocated for a mirror argument
3182  *                     structure.
3183  * @mirror: Previously allocated mirror argument structure by
3184  *          lfs_mirror_alloc().
3185  *
3186  * Free memory allocated for @mirror.
3187  *
3188  * Return: void.
3189  */
3190 static void lfs_mirror_free(struct mirror_args *mirror)
3191 {
3192         if (mirror->m_layout)
3193                 llapi_layout_free(mirror->m_layout);
3194         free(mirror);
3195 }
3196
3197 /**
3198  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
3199  * @mirror_list: Previously allocated mirror list.
3200  *
3201  * Free memory allocated for @mirror_list.
3202  *
3203  * Return: void.
3204  */
3205 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
3206 {
3207         struct mirror_args *next_mirror = NULL;
3208
3209         while (mirror_list) {
3210                 next_mirror = mirror_list->m_next;
3211                 lfs_mirror_free(mirror_list);
3212                 mirror_list = next_mirror;
3213         }
3214 }
3215
3216 enum {
3217         LFS_POOL_OPT = 3,
3218         LFS_COMP_COUNT_OPT,
3219         LFS_COMP_START_OPT,
3220         LFS_COMP_FLAGS_OPT,
3221         LFS_COMP_DEL_OPT,
3222         LFS_COMP_SET_OPT,
3223         LFS_COMP_ADD_OPT,
3224         LFS_COMP_NO_VERIFY_OPT,
3225         LFS_PROJID_OPT,
3226         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
3227         LFS_MIRROR_ID_OPT,
3228         LFS_MIRROR_STATE_OPT,
3229         LFS_LAYOUT_COPY,
3230         LFS_MIRROR_INDEX_OPT,
3231         LFS_LAYOUT_FOREIGN_OPT,
3232         LFS_MODE_OPT,
3233         LFS_NEWERXY_OPT,
3234 };
3235
3236 /* functions */
3237 static int lfs_setstripe_internal(int argc, char **argv,
3238                                   enum setstripe_origin opc)
3239 {
3240         struct lfs_setstripe_args        lsa = { 0 };
3241         struct llapi_stripe_param       *param = NULL;
3242         struct find_param                migrate_mdt_param = {
3243                 .fp_max_depth = -1,
3244                 .fp_mdt_index = -1,
3245         };
3246         char                            *fname;
3247         int                              result = 0;
3248         int                              result2 = 0;
3249         char                            *end;
3250         int                              c;
3251         int                              delete = 0;
3252         unsigned long long               size_units = 1;
3253         bool                             migrate_mode = false;
3254         bool                             migrate_mdt_mode = false;
3255         bool                             setstripe_mode = false;
3256         bool                             migration_block = false;
3257         __u64                            migration_flags = 0;
3258         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
3259         int                              comp_del = 0, comp_set = 0;
3260         int                              comp_add = 0;
3261         __u32                            comp_id = 0;
3262         struct llapi_layout             *layout = NULL;
3263         struct llapi_layout             **lpp = &layout;
3264         bool                             mirror_mode = false;
3265         bool                             has_m_file = false;
3266         __u32                            mirror_count = 0;
3267         enum mirror_flags                mirror_flags = 0;
3268         struct mirror_args              *mirror_list = NULL;
3269         struct mirror_args              *new_mirror = NULL;
3270         struct mirror_args              *last_mirror = NULL;
3271         __u16                            mirror_id = 0;
3272         char                             cmd[PATH_MAX];
3273         bool from_yaml = false;
3274         bool from_copy = false;
3275         char *template = NULL;
3276         bool foreign_mode = false;
3277         char *xattr = NULL;
3278         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
3279         char *mode_opt = NULL;
3280         mode_t previous_umask = 0;
3281         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
3282
3283         struct option long_opts[] = {
3284 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
3285 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3286         /* --block is only valid in migrate mode */
3287         { .val = 'b',   .name = "block",        .has_arg = no_argument },
3288 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
3289         { .val = LFS_COMP_ADD_OPT,
3290                         .name = "comp-add",     .has_arg = no_argument },
3291         { .val = LFS_COMP_ADD_OPT,
3292                         .name = "component-add", .has_arg = no_argument },
3293         { .val = LFS_COMP_DEL_OPT,
3294                         .name = "comp-del",     .has_arg = no_argument },
3295         { .val = LFS_COMP_DEL_OPT,
3296                         .name = "component-del", .has_arg = no_argument },
3297         { .val = LFS_COMP_FLAGS_OPT,
3298                         .name = "comp-flags",   .has_arg = required_argument },
3299         { .val = LFS_COMP_FLAGS_OPT,
3300                         .name = "component-flags",
3301                                                 .has_arg = required_argument },
3302         { .val = LFS_COMP_SET_OPT,
3303                         .name = "comp-set",     .has_arg = no_argument },
3304         { .val = LFS_COMP_SET_OPT,
3305                         .name = "component-set",
3306                                                 .has_arg = no_argument},
3307         { .val = LFS_COMP_NO_VERIFY_OPT,
3308                         .name = "no-verify",    .has_arg = no_argument},
3309         { .val = LFS_LAYOUT_FLAGS_OPT,
3310                         .name = "flags",        .has_arg = required_argument},
3311         { .val = LFS_LAYOUT_FOREIGN_OPT,
3312                         .name = "foreign",      .has_arg = optional_argument},
3313         { .val = LFS_MIRROR_ID_OPT,
3314                         .name = "mirror-id",    .has_arg = required_argument},
3315         { .val = LFS_MODE_OPT,
3316                         .name = "mode",         .has_arg = required_argument},
3317         { .val = LFS_LAYOUT_COPY,
3318                         .name = "copy",         .has_arg = required_argument},
3319         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
3320         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
3321         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
3322         { .val = 'C',   .name = "overstripe-count",
3323                                                 .has_arg = required_argument},
3324         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
3325         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
3326         /* --non-direct is only valid in migrate mode */
3327         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
3328         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
3329         { .val = 'E',   .name = "component-end",
3330                                                 .has_arg = required_argument},
3331         { .val = 'f',   .name = "file",         .has_arg = required_argument },
3332 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3333 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
3334 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3335 /* find { .val = 'h',   .name = "help",         .has_arg = no_argument }, */
3336         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
3337         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
3338         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
3339         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
3340         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
3341 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
3342         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3343         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
3344         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
3345         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
3346         /* --non-block is only valid in migrate mode */
3347         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
3348         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
3349         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
3350 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3351         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
3352         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
3353 #endif
3354         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3355 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3356 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3357 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3358 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3359         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3360         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3361 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3362 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3363 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3364 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3365         /* --verbose is only valid in migrate mode */
3366         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
3367         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
3368         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
3369         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument},
3370         { .val = 'z',   .name = "extension-size", .has_arg = required_argument},
3371         { .name = NULL } };
3372
3373         setstripe_args_init(&lsa);
3374
3375         migrate_mode = (opc == SO_MIGRATE);
3376         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
3377         setstripe_mode = (opc == SO_SETSTRIPE);
3378         if (opc == SO_MIRROR_DELETE) {
3379                 delete = 1;
3380                 mirror_flags = MF_DESTROY;
3381         }
3382
3383         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
3384         progname = cmd;
3385         while ((c = getopt_long(argc, argv,
3386                                 "bc:C:dDE:f:H:i:I:m:N::no:p:L:s:S:vx:y:z:",
3387                                 long_opts, NULL)) >= 0) {
3388                 size_units = 1;
3389                 switch (c) {
3390                 case 0:
3391                         /* Long options. */
3392                         break;
3393                 case LFS_COMP_ADD_OPT:
3394                         comp_add = 1;
3395                         break;
3396                 case LFS_COMP_DEL_OPT:
3397                         comp_del = 1;
3398                         break;
3399                 case LFS_COMP_FLAGS_OPT:
3400                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
3401                                                 &lsa.lsa_comp_neg_flags);
3402                         if (result != 0)
3403                                 goto usage_error;
3404                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
3405                                 fprintf(stderr,
3406                                         "%s: inverted flags are not supported\n",
3407                                         progname);
3408                                 goto usage_error;
3409                         }
3410                         break;
3411                 case LFS_COMP_SET_OPT:
3412                         comp_set = 1;
3413                         break;
3414                 case LFS_COMP_NO_VERIFY_OPT:
3415                         mirror_flags |= MF_NO_VERIFY;
3416                         break;
3417                 case LFS_MIRROR_ID_OPT: {
3418                         unsigned long int id;
3419
3420                         errno = 0;
3421                         id = strtoul(optarg, &end, 0);
3422                         if (errno != 0 || *end != '\0' || id == 0 ||
3423                             id > UINT16_MAX) {
3424                                 fprintf(stderr,
3425                                         "%s %s: invalid mirror ID '%s'\n",
3426                                         progname, argv[0], optarg);
3427                                 goto usage_error;
3428                         }
3429
3430                         mirror_id = (__u16)id;
3431                         break;
3432                 }
3433                 case LFS_LAYOUT_FLAGS_OPT: {
3434                         uint32_t neg_flags;
3435
3436                         /* check for numeric flags (foreign and mirror cases) */
3437                         if (setstripe_mode && !mirror_mode && !last_mirror) {
3438                                 errno = 0;
3439                                 flags = strtoul(optarg, &end, 16);
3440                                 if (errno != 0 || *end != '\0' ||
3441                                     flags >= UINT32_MAX) {
3442                                         fprintf(stderr,
3443                                                 "%s %s: invalid hex flags '%s'\n",
3444                                                 progname, argv[0], optarg);
3445                                         return CMD_HELP;
3446                                 }
3447                                 if (!foreign_mode) {
3448                                         fprintf(stderr,
3449                                                 "%s %s: hex flags must be specified with --foreign option\n",
3450                                                 progname, argv[0]);
3451                                         return CMD_HELP;
3452                                 }
3453                                 break;
3454                         }
3455
3456                         if (!mirror_mode || !last_mirror) {
3457                                 fprintf(stderr,
3458                                         "error: %s: --flags must be specified with --mirror-count|-N option\n",
3459                                         progname);
3460                                 goto usage_error;
3461                         }
3462
3463                         result = comp_str2flags(optarg, &last_mirror->m_flags,
3464                                                 &neg_flags);
3465                         if (result != 0)
3466                                 goto usage_error;
3467
3468                         if (neg_flags) {
3469                                 fprintf(stderr,
3470                                         "%s: inverted flags are not supported\n",
3471                                         progname);
3472                                 result = -EINVAL;
3473                                 goto usage_error;
3474                         }
3475                         if (last_mirror->m_flags & ~LCME_USER_MIRROR_FLAGS) {
3476                                 fprintf(stderr,
3477                                         "%s: unsupported mirror flags: %s\n",
3478                                         progname, optarg);
3479                                 result = -EINVAL;
3480                                 goto error;
3481                         }
3482                         break;
3483                 }
3484                 case LFS_LAYOUT_FOREIGN_OPT:
3485                         if (optarg) {
3486                                 /* check pure numeric */
3487                                 type = strtoul(optarg, &end, 0);
3488                                 if (*end) {
3489                                         /* check name */
3490                                         type = check_foreign_type_name(optarg);
3491                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
3492                                                 fprintf(stderr,
3493                                                         "%s %s: unrecognized foreign type '%s'\n",
3494                                                         progname, argv[0],
3495                                                         optarg);
3496                                                 return CMD_HELP;
3497                                         }
3498                                 } else if (type >= UINT32_MAX) {
3499                                         fprintf(stderr,
3500                                                 "%s %s: invalid foreign type '%s'\n",
3501                                                 progname, argv[0], optarg);
3502                                         return CMD_HELP;
3503                                 }
3504                         }
3505                         foreign_mode = true;
3506                         break;
3507                 case LFS_MODE_OPT:
3508                         mode_opt = optarg;
3509                         if (mode_opt) {
3510                                 mode = strtoul(mode_opt, &end, 8);
3511                                 if (*end != '\0') {
3512                                         fprintf(stderr,
3513                                                 "%s %s: bad mode '%s'\n",
3514                                                 progname, argv[0], mode_opt);
3515                                         return CMD_HELP;
3516                                 }
3517                                 previous_umask = umask(0);
3518                         }
3519                         break;
3520                 case LFS_LAYOUT_COPY:
3521                         from_copy = true;
3522                         template = optarg;
3523                         break;
3524                 case 'b':
3525                         if (!migrate_mode) {
3526                                 fprintf(stderr,
3527                                         "%s %s: -b|--block valid only for migrate command\n",
3528                                         progname, argv[0]);
3529                                 goto usage_error;
3530                         }
3531                         migration_block = true;
3532                         break;
3533                 case 'C':
3534                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3535                                 fprintf(stderr,
3536                                         "%s %s: -C|--overstripe-count incompatible with DoM layout\n",
3537                                         progname, argv[0]);
3538                                 goto usage_error;
3539                         }
3540                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3541                         /* fall through */
3542                 case 'c':
3543                         errno = 0;
3544                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3545                         if (errno != 0 || *end != '\0'||
3546                             lsa.lsa_stripe_count < -1 ||
3547                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
3548                                 fprintf(stderr,
3549                                         "%s %s: invalid stripe count '%s'\n",
3550                                         progname, argv[0], optarg);
3551                                 goto usage_error;
3552                         }
3553
3554                         if (lsa.lsa_stripe_count == -1)
3555                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
3556                         break;
3557                 case 'd':
3558                         /* delete the default striping pattern */
3559                         delete = 1;
3560                         if (opc == SO_MIRROR_SPLIT) {
3561                                 if (has_m_file) {
3562                                         fprintf(stderr,
3563                                               "%s %s: -d cannot used with -f\n",
3564                                                 progname, argv[0]);
3565                                         goto usage_error;
3566                                 }
3567                                 mirror_flags |= MF_DESTROY;
3568                         }
3569                         break;
3570                 case 'D':
3571                         if (!migrate_mode) {
3572                                 fprintf(stderr,
3573                                         "%s %s: -D|--non-direct is valid only for migrate command\n",
3574                                         progname, argv[0]);
3575                                 goto usage_error;
3576                         }
3577                         migration_flags |= MIGRATION_NONDIRECT;
3578                         break;
3579                 case 'E':
3580                         if (lsa.lsa_comp_end != 0) {
3581                                 result = comp_args_to_layout(lpp, &lsa, true);
3582                                 if (result) {
3583                                         fprintf(stderr, "%s: invalid layout\n",
3584                                                 progname);
3585                                         goto usage_error;
3586                                 }
3587
3588                                 setstripe_args_init_inherit(&lsa);
3589                         }
3590
3591                         if (arg_is_eof(optarg)) {
3592                                 lsa.lsa_comp_end = LUSTRE_EOF;
3593                         } else {
3594                                 result = llapi_parse_size(optarg,
3595                                                           &lsa.lsa_comp_end,
3596                                                           &size_units, 0);
3597                                 /* assume units of KB if too small */
3598                                 if (lsa.lsa_comp_end < 4096)
3599                                         lsa.lsa_comp_end *= 1024;
3600                                 if (result ||
3601                                     lsa.lsa_comp_end & (LOV_MIN_STRIPE_SIZE - 1)) {
3602                                         fprintf(stderr,
3603                                                 "%s %s: invalid component end '%s'\n",
3604                                                 progname, argv[0], optarg);
3605                                         goto usage_error;
3606                                 }
3607                         }
3608                         break;
3609                 case 'H':
3610                         if (!migrate_mode) {
3611                                 fprintf(stderr,
3612                                         "--mdt-hash is valid only for migrate command\n");
3613                                 return CMD_HELP;
3614                         }
3615
3616                         lsa.lsa_pattern = check_hashtype(optarg);
3617                         if (lsa.lsa_pattern == 0) {
3618                                 fprintf(stderr,
3619                                         "%s %s: bad stripe hash type '%s'\n",
3620                                         progname, argv[0], optarg);
3621                                 return CMD_HELP;
3622                         }
3623                         break;
3624                 case 'i':
3625                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3626                         if (*end != '\0') {
3627                                 fprintf(stderr,
3628                                         "%s %s: invalid stripe offset '%s'\n",
3629                                         progname, argv[0], optarg);
3630                                 goto usage_error;
3631                         }
3632                         if (lsa.lsa_stripe_off == -1)
3633                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3634                         break;
3635                 case 'I':
3636                         comp_id = strtoul(optarg, &end, 0);
3637                         if (*end != '\0' || comp_id == 0 ||
3638                             comp_id > LCME_ID_MAX) {
3639                                 fprintf(stderr,
3640                                         "%s %s: invalid component ID '%s'\n",
3641                                         progname, argv[0], optarg);
3642                                 goto usage_error;
3643                         }
3644                         break;
3645                 case 'f':
3646                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3647                                 fprintf(stderr,
3648                                         "error: %s: invalid option: %s\n",
3649                                         progname, argv[optopt + 1]);
3650                                 goto usage_error;
3651                         }
3652                         if (opc == SO_MIRROR_EXTEND) {
3653                                 if (!last_mirror) {
3654                                         fprintf(stderr,
3655                                 "error: %s: '-N' must exist in front of '%s'\n",
3656                                                 progname, argv[optopt + 1]);
3657                                         goto usage_error;
3658                                 }
3659                                 last_mirror->m_file = optarg;
3660                                 last_mirror->m_count = 1;
3661                         } else {
3662                                 /* mirror split */
3663                                 if (!mirror_list)
3664                                         mirror_list = lfs_mirror_alloc();
3665                                 mirror_list->m_file = optarg;
3666                         }
3667                         has_m_file = true;
3668                         break;
3669                 case 'L':
3670                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3671                                 /* Can be only the first component */
3672                                 if (layout) {
3673                                         result = -EINVAL;
3674                                         fprintf(stderr,
3675                                                 "error: 'mdt' layout can be only the first one\n");
3676                                         goto error;
3677                                 }
3678                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3679                                         result = -EFBIG;
3680                                         fprintf(stderr,
3681                                                 "error: 'mdt' layout size is too big\n");
3682                                         goto error;
3683                                 }
3684                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3685                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3686                                 result = -EINVAL;
3687                                 fprintf(stderr,
3688                                         "error: layout '%s' is unknown, supported layouts are: 'mdt', 'raid0'\n",
3689                                         argv[optind]);
3690                                 goto error;
3691                         }
3692                         break;
3693                 case 'm':
3694                         if (!migrate_mode) {
3695                                 fprintf(stderr,
3696                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3697                                         progname, argv[0]);
3698                                 goto usage_error;
3699                         }
3700                         migrate_mdt_mode = true;
3701                         lsa.lsa_nr_tgts = parse_targets(tgts,
3702                                                 sizeof(tgts) / sizeof(__u32),
3703                                                 lsa.lsa_nr_tgts, optarg, NULL);
3704                         if (lsa.lsa_nr_tgts < 0) {
3705                                 fprintf(stderr,
3706                                         "%s %s: invalid MDT target(s) '%s'\n",
3707                                         progname, argv[0], optarg);
3708                                 return CMD_HELP;
3709                         }
3710
3711                         lsa.lsa_tgts = tgts;
3712                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3713                                 lsa.lsa_stripe_off = tgts[0];
3714                         break;
3715                 case 'n':
3716                         if (!migrate_mode) {
3717                                 fprintf(stderr,
3718                                         "%s %s: -n|--non-block valid only for migrate command\n",
3719                                         progname, argv[0]);
3720                                 goto usage_error;
3721                         }
3722                         migration_flags |= MIGRATION_NONBLOCK;
3723                         break;
3724                 case 'N':
3725                         if (opc == SO_SETSTRIPE) {
3726                                 opc = SO_MIRROR_CREATE;
3727                                 mirror_mode = true;
3728                         }
3729                         mirror_count = 1;
3730                         if (optarg) {
3731                                 errno = 0;
3732                                 mirror_count = strtoul(optarg, &end, 0);
3733                                 if (errno != 0 || *end != '\0' ||
3734                                     mirror_count == 0 ||
3735                                     mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
3736                                         fprintf(stderr,
3737                                                 "error: %s: bad mirror count: %s\n",
3738                                                 progname, optarg);
3739                                         result = -EINVAL;
3740                                         goto error;
3741                                 }
3742                         }
3743
3744                         new_mirror = lfs_mirror_alloc();
3745                         new_mirror->m_count = mirror_count;
3746
3747                         if (!mirror_list)
3748                                 mirror_list = new_mirror;
3749
3750                         if (last_mirror) {
3751                                 /* wrap up last mirror */
3752                                 if (!setstripe_args_specified(&lsa))
3753                                         last_mirror->m_inherit = true;
3754                                 if (lsa.lsa_comp_end == 0)
3755                                         lsa.lsa_comp_end = LUSTRE_EOF;
3756
3757                                 result = comp_args_to_layout(lpp, &lsa, true);
3758                                 if (result) {
3759                                         lfs_mirror_free(new_mirror);
3760                                         goto error;
3761                                 }
3762
3763                                 setstripe_args_init_inherit(&lsa);
3764
3765                                 last_mirror->m_next = new_mirror;
3766                         }
3767
3768                         last_mirror = new_mirror;
3769                         lpp = &last_mirror->m_layout;
3770                         break;
3771                 case 'o':
3772 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3773                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
3774                                 fprintf(stderr,
3775                                         "warning: '--ost-list' is deprecated, use '--ost' instead\n");
3776 #endif
3777                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3778                                 fprintf(stderr,
3779                                         "%s %s: -o|--ost incompatible with DoM layout\n",
3780                                         progname, argv[0]);
3781                                 goto usage_error;
3782                         }
3783                         /*
3784                          * -o allows overstriping, and must note it because
3785                          * parse_targets is shared with MDT striping, which
3786                          * does not allow duplicates
3787                          */
3788                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3789                         lsa.lsa_nr_tgts = parse_targets(tgts,
3790                                                 sizeof(tgts) / sizeof(__u32),
3791                                                 lsa.lsa_nr_tgts, optarg,
3792                                                 &lsa.lsa_pattern);
3793                         if (lsa.lsa_nr_tgts < 0) {
3794                                 fprintf(stderr,
3795                                         "%s %s: invalid OST target(s) '%s'\n",
3796                                         progname, argv[0], optarg);
3797                                 goto usage_error;
3798                         }
3799
3800                         lsa.lsa_tgts = tgts;
3801                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3802                                 lsa.lsa_stripe_off = tgts[0];
3803                         break;
3804                 case 'p':
3805                         if (!optarg)
3806                                 goto usage_error;
3807                         lsa.lsa_pool_name = optarg;
3808
3809                         if (strlen(lsa.lsa_pool_name) == 0 ||
3810                             strncmp(lsa.lsa_pool_name, "none",
3811                                     LOV_MAXPOOLNAME) == 0)
3812                                 lsa.lsa_pool_name = NULL;
3813                         break;
3814                 case 'S':
3815                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3816                                                   &size_units, 0);
3817                         /* assume units of KB if too small to be valid */
3818                         if (lsa.lsa_stripe_size < 4096)
3819                                 lsa.lsa_stripe_size *= 1024;
3820                         if (result ||
3821                             lsa.lsa_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
3822                                 fprintf(stderr,
3823                                         "%s %s: invalid stripe size '%s'\n",
3824                                         progname, argv[0], optarg);
3825                                 goto usage_error;
3826                         }
3827                         break;
3828                 case 'v':
3829                         if (!migrate_mode) {
3830                                 fprintf(stderr,
3831                                         "%s %s: -v|--verbose valid only for migrate command\n",
3832                                         progname, argv[0]);
3833                                 goto usage_error;
3834                         }
3835                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3836                         migration_flags = MIGRATION_VERBOSE;
3837                         break;
3838                 case 'x':
3839                         xattr = optarg;
3840                         break;
3841                 case 'y':
3842                         from_yaml = true;
3843                         template = optarg;
3844                         break;
3845                 case 'z':
3846                         result = llapi_parse_size(optarg,
3847                                                   &lsa.lsa_extension_size,
3848                                                   &size_units, 0);
3849                         if (result) {
3850                                 fprintf(stderr,
3851                                         "%s %s: invalid extension size '%s'\n",
3852                                         progname, argv[0], optarg);
3853                                 goto usage_error;
3854                         }
3855
3856                         lsa.lsa_extension_comp = true;
3857                         break;
3858                 default:
3859                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
3860                                 progname, argv[0], argv[optind - 1]);
3861                         goto usage_error;
3862                 }
3863         }
3864
3865         fname = argv[optind];
3866
3867         if (optind == argc) {
3868                 fprintf(stderr, "%s %s: FILE must be specified\n",
3869                         progname, argv[0]);
3870                 goto usage_error;
3871         }
3872
3873         /* lfs migrate $filename should keep the file's layout by default */
3874         if (migrate_mode && !setstripe_args_specified(&lsa) && !layout &&
3875             !from_yaml)
3876                 from_copy = true;
3877
3878         if (xattr && !foreign_mode) {
3879                 /*
3880                  * only print a warning as this is harmless and will be ignored
3881                  */
3882                 fprintf(stderr,
3883                         "%s %s: xattr has been specified for non-foreign layout\n",
3884                         progname, argv[0]);
3885         } else if (foreign_mode && !xattr) {
3886                 fprintf(stderr,
3887                         "%s %s: xattr must be provided in foreign mode\n",
3888                         progname, argv[0]);
3889                 goto usage_error;
3890         }
3891
3892         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
3893             comp_set || comp_id || delete || from_copy ||
3894             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
3895             lsa.lsa_tgts)) {
3896                 fprintf(stderr,
3897                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
3898                         progname, argv[0]);
3899                 return CMD_HELP;
3900         }
3901
3902         if (mirror_mode && mirror_count == 0) {
3903                 fprintf(stderr,
3904                         "error: %s: --mirror-count|-N option is required\n",
3905                         progname);
3906                 result = -EINVAL;
3907                 goto error;
3908         }
3909
3910         if (mirror_mode) {
3911                 if (!setstripe_args_specified(&lsa))
3912                         last_mirror->m_inherit = true;
3913                 if (lsa.lsa_comp_end == 0)
3914                         lsa.lsa_comp_end = LUSTRE_EOF;
3915         }
3916
3917         if (lsa.lsa_comp_end != 0) {
3918                 result = comp_args_to_layout(lpp, &lsa, true);
3919                 if (result) {
3920                         fprintf(stderr, "error: %s: invalid layout\n",
3921                                 progname);
3922                         result = -EINVAL;
3923                         goto error;
3924                 }
3925         }
3926
3927         if (mirror_flags & MF_NO_VERIFY) {
3928                 if (opc != SO_MIRROR_EXTEND) {
3929                         fprintf(stderr,
3930                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
3931                                 progname);
3932                         result = -EINVAL;
3933                         goto error;
3934                 } else if (!has_m_file) {
3935                         fprintf(stderr,
3936                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
3937                                 progname);
3938                         result = -EINVAL;
3939                         goto error;
3940                 }
3941         }
3942
3943         if (comp_set && !comp_id && !lsa.lsa_pool_name) {
3944                 fprintf(stderr,
3945                         "%s %s: --component-set doesn't have component-id set\n",
3946                         progname, argv[0]);
3947                 goto usage_error;
3948         }
3949
3950         if ((delete + comp_set + comp_del + comp_add) > 1) {
3951                 fprintf(stderr,
3952                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
3953                         progname, argv[0]);
3954                 goto usage_error;
3955         }
3956
3957         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
3958                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
3959                 fprintf(stderr,
3960                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
3961                         progname, argv[0]);
3962                 goto usage_error;
3963         }
3964
3965         if ((comp_set || comp_del) &&
3966             (setstripe_args_specified(&lsa) || layout != NULL)) {
3967                 fprintf(stderr,
3968                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
3969                         progname, argv[0]);
3970                 goto usage_error;
3971         }
3972
3973         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
3974                 fprintf(stderr,
3975                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
3976                         progname, argv[0]);
3977                 goto usage_error;
3978         }
3979
3980         if (comp_add || comp_del) {
3981                 struct stat st;
3982
3983                 result = lstat(fname, &st);
3984                 if (result == 0 && S_ISDIR(st.st_mode)) {
3985                         fprintf(stderr,
3986                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
3987                                 progname);
3988                         goto usage_error;
3989                 }
3990
3991                 if (mirror_mode) {
3992                         fprintf(stderr,
3993                                 "error: %s: can't use --component-add or --component-del for mirror operation\n",
3994                                 progname);
3995                         goto usage_error;
3996                 }
3997         }
3998
3999         if (comp_add) {
4000                 if (!layout) {
4001                         fprintf(stderr,
4002                                 "%s %s: option -E must be specified with --component-add\n",
4003                                 progname, argv[0]);
4004                         goto usage_error;
4005                 }
4006         }
4007
4008         if (from_yaml && from_copy) {
4009                 fprintf(stderr,
4010                         "%s: can't specify --yaml and --copy together\n",
4011                         progname);
4012                 goto error;
4013         }
4014
4015         if ((from_yaml || from_copy) &&
4016             (setstripe_args_specified(&lsa) || layout != NULL)) {
4017                 fprintf(stderr,
4018                         "error: %s: can't specify --yaml or --copy with -c, -S, -i, -o, -p or -E options.\n",
4019                         argv[0]);
4020                 goto error;
4021         }
4022
4023         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
4024                 fprintf(stderr,
4025                         "%s %s: options --non-block and --block are mutually exclusive\n",
4026                         progname, argv[0]);
4027                 goto usage_error;
4028         }
4029
4030         if (!comp_del && !comp_set && opc != SO_MIRROR_SPLIT &&
4031             opc != SO_MIRROR_DELETE && comp_id != 0) {
4032                 fprintf(stderr,
4033                         "%s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
4034                         progname);
4035                 goto usage_error;
4036         }
4037
4038         if (migrate_mdt_mode) {
4039                 struct lmv_user_md *lmu;
4040
4041                 /* initialize migrate mdt parameters */
4042                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
4043                                                  LMV_USER_MAGIC_SPECIFIC));
4044                 if (!lmu) {
4045                         fprintf(stderr,
4046                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
4047                                 progname, argv[0], strerror(ENOMEM));
4048                         result = -ENOMEM;
4049                         goto error;
4050                 }
4051                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
4052                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
4053                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
4054                         fprintf(stderr,
4055                                 "%s %s: migrate should specify MDT index\n",
4056                                 progname, argv[0]);
4057                         free(lmu);
4058                         goto usage_error;
4059                 }
4060                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
4061                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
4062                         lmu->lum_hash_type = lsa.lsa_pattern;
4063                 else
4064                         lmu->lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
4065                 if (lsa.lsa_pool_name) {
4066                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
4067                                 sizeof(lmu->lum_pool_name) - 1);
4068                         lmu->lum_pool_name[sizeof(lmu->lum_pool_name) - 1] = 0;
4069                 }
4070                 if (lsa.lsa_nr_tgts > 1) {
4071                         int i;
4072
4073                         if (lsa.lsa_stripe_count > 0 &&
4074                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
4075                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
4076                                 fprintf(stderr,
4077                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
4078                                         progname, lsa.lsa_stripe_count,
4079                                         lsa.lsa_nr_tgts);
4080                                 free(lmu);
4081                                 goto usage_error;
4082                         }
4083
4084                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
4085                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
4086                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
4087                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
4088                 } else {
4089                         lmu->lum_magic = LMV_USER_MAGIC;
4090                 }
4091
4092                 migrate_mdt_param.fp_lmv_md = lmu;
4093                 migrate_mdt_param.fp_migrate = 1;
4094         } else if (!layout) {
4095                 /* initialize stripe parameters */
4096                 param = calloc(1, offsetof(typeof(*param),
4097                                lsp_osts[lsa.lsa_nr_tgts]));
4098                 if (!param) {
4099                         fprintf(stderr,
4100                                 "%s %s: cannot allocate memory for parameters: %s\n",
4101                                 progname, argv[0], strerror(ENOMEM));
4102                         result = -ENOMEM;
4103                         goto error;
4104                 }
4105
4106                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
4107                         param->lsp_stripe_size = lsa.lsa_stripe_size;
4108                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
4109                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
4110                                 param->lsp_stripe_count = -1;
4111                         else
4112                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
4113                 }
4114                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4115                         param->lsp_stripe_offset = -1;
4116                 else
4117                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
4118                 param->lsp_stripe_pattern =
4119                                 llapi_pattern_to_lov(lsa.lsa_pattern);
4120                 if (param->lsp_stripe_pattern == EINVAL) {
4121                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
4122                                 argv[0]);
4123                         free(param);
4124                         goto usage_error;
4125                 }
4126                 param->lsp_pool = lsa.lsa_pool_name;
4127                 param->lsp_is_specific = false;
4128                 if (lsa.lsa_nr_tgts > 0) {
4129                         if (lsa.lsa_stripe_count > 0 &&
4130                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
4131                             lsa.lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
4132                             lsa.lsa_nr_tgts != lsa.lsa_stripe_count) {
4133                                 fprintf(stderr,
4134                                         "error: %s: stripe count %lld doesn't match the number of OSTs: %d\n",
4135                                         argv[0], lsa.lsa_stripe_count,
4136                                         lsa.lsa_nr_tgts);
4137                                 free(param);
4138                                 goto usage_error;
4139                         }
4140
4141                         param->lsp_is_specific = true;
4142                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
4143                         memcpy(param->lsp_osts, tgts,
4144                                sizeof(*tgts) * lsa.lsa_nr_tgts);
4145                 }
4146         }
4147
4148         if (from_yaml) {
4149                 /* generate a layout from a YAML template */
4150                 result = lfs_comp_create_from_yaml(template, &layout,
4151                                                    &lsa, tgts);
4152                 if (result) {
4153                         fprintf(stderr,
4154                                 "error: %s: can't create composite layout from template file %s\n",
4155                                 argv[0], template);
4156                         goto error;
4157                 }
4158         }
4159
4160         if (layout != NULL || mirror_list != NULL) {
4161                 if (mirror_list)
4162                         result = mirror_adjust_first_extents(mirror_list);
4163                 else
4164                         result = layout_adjust_first_extent(fname, layout,
4165                                                             comp_add);
4166                 if (result == -ENODATA)
4167                         comp_add = 0;
4168                 else if (result != 0) {
4169                         fprintf(stderr, "error: %s: invalid layout\n",
4170                                 progname);
4171                         goto error;
4172                 }
4173         }
4174
4175         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
4176                 if (from_copy) {
4177                         layout = llapi_layout_get_by_path(template ?: fname, 0);
4178                         if (!layout) {
4179                                 fprintf(stderr,
4180                                         "%s: can't create composite layout from file %s: %s\n",
4181                                         progname, template ?: fname,
4182                                         strerror(errno));
4183                                 result = -errno;
4184                                 goto error;
4185                         }
4186                 }
4187
4188                 if (migrate_mdt_mode) {
4189                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
4190                 } else if (migrate_mode) {
4191                         result = lfs_migrate(fname, migration_flags, param,
4192                                              layout);
4193                 } else if (comp_set != 0) {
4194                         result = lfs_component_set(fname, comp_id,
4195                                                    lsa.lsa_pool_name,
4196                                                    lsa.lsa_comp_flags,
4197                                                    lsa.lsa_comp_neg_flags);
4198                 } else if (comp_del != 0) {
4199                         result = lfs_component_del(fname, comp_id,
4200                                                    lsa.lsa_comp_flags,
4201                                                    lsa.lsa_comp_neg_flags);
4202                 } else if (comp_add != 0) {
4203                         result = lfs_component_add(fname, layout);
4204                 } else if (opc == SO_MIRROR_CREATE) {
4205                         result = mirror_create(fname, mirror_list);
4206                 } else if (opc == SO_MIRROR_EXTEND) {
4207                         result = mirror_extend(fname, mirror_list,
4208                                                mirror_flags);
4209                 } else if (opc == SO_MIRROR_SPLIT || opc == SO_MIRROR_DELETE) {
4210                         if (!mirror_id && !comp_id && !lsa.lsa_pool_name) {
4211                                 fprintf(stderr,
4212                                         "%s: no mirror specified to delete from '%s'\n",
4213                                         progname, fname);
4214                                 goto usage_error;
4215                         }
4216                         if (lsa.lsa_pool_name)
4217                                 mirror_flags |= MF_COMP_POOL;
4218                         else if (mirror_id != 0)
4219                                 comp_id = mirror_id;
4220                         else
4221                                 mirror_flags |= MF_COMP_ID;
4222                         result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
4223                                               mirror_flags,
4224                                               has_m_file ? mirror_list->m_file :
4225                                               NULL);
4226                 } else if (layout) {
4227                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
4228                                                       mode, layout);
4229                         if (result >= 0) {
4230                                 close(result);
4231                                 result = 0;
4232                         }
4233                 } else if (foreign_mode) {
4234                         result = llapi_file_create_foreign(fname, mode, type,
4235                                                            flags, xattr);
4236                         if (result >= 0) {
4237                                 close(result);
4238                                 result = 0;
4239                         }
4240                 } else {
4241                         result = llapi_file_open_param(fname,
4242                                                        O_CREAT | O_WRONLY,
4243                                                        mode, param);
4244                         if (result >= 0) {
4245                                 close(result);
4246                                 result = 0;
4247                         }
4248                 }
4249                 if (result) {
4250                         /* Save the first error encountered. */
4251                         if (result2 == 0)
4252                                 result2 = result;
4253                         continue;
4254                 }
4255         }
4256
4257         if (mode_opt)
4258                 umask(previous_umask);
4259
4260         free(param);
4261         free(migrate_mdt_param.fp_lmv_md);
4262         llapi_layout_free(layout);
4263         lfs_mirror_list_free(mirror_list);
4264         return result2;
4265 usage_error:
4266         result = CMD_HELP;
4267 error:
4268         llapi_layout_free(layout);
4269         lfs_mirror_list_free(mirror_list);
4270         return result;
4271 }
4272
4273 static int lfs_poollist(int argc, char **argv)
4274 {
4275         if (argc != 2)
4276                 return CMD_HELP;
4277
4278         return llapi_poollist(argv[1]);
4279 }
4280
4281 #define FP_DEFAULT_TIME_MARGIN (24 * 60 * 60)
4282 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
4283                        char *str)
4284 {
4285         long long t = 0;
4286         int sign = 0;
4287         char *endptr = "AD";
4288         char *timebuf;
4289
4290         if (str[0] == '+')
4291                 sign = 1;
4292         else if (str[0] == '-')
4293                 sign = -1;
4294
4295         if (sign)
4296                 str++;
4297
4298         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
4299                 long long val = strtoll(timebuf, &endptr, 0);
4300                 int unit = 1;
4301
4302                 switch (*endptr) {
4303                 case  'y':
4304                         unit *= 52; /* 52 weeks + 1 day below */
4305                 case  'w':      /* fallthrough */
4306                         unit *= 7;
4307                         if (param->fp_time_margin == FP_DEFAULT_TIME_MARGIN)
4308                                 param->fp_time_margin *= (1 + unit / 52);
4309                         unit += (*endptr == 'y'); /* +1 day for 365 days/year */
4310                 case '\0': /* days are default unit if none used */
4311                 case  'd':      /* fallthrough */
4312                         unit *= 24;
4313                 case  'h':      /* fallthrough */
4314                         unit *= 60;
4315                 case  'm':      /* fallthrough */
4316                         unit *= 60;
4317                 case  's':      /* fallthrough */
4318                         break;
4319                         /* don't need to multiply by 1 for seconds */
4320                 default:
4321                         fprintf(stderr,
4322                                 "%s find: bad time string '%s': %s\n",
4323                                 progname, timebuf, strerror(EINVAL));
4324                         return LONG_MAX;
4325                 }
4326
4327                 if (param->fp_time_margin == 0 ||
4328                     (*endptr && unit < param->fp_time_margin))
4329                         param->fp_time_margin = unit;
4330
4331                 t += val * unit;
4332         }
4333         if (*time < t) {
4334                 if (sign != 0)
4335                         str--;
4336                 fprintf(stderr, "%s find: bad time '%s': too large\n",
4337                         progname, str);
4338                 return LONG_MAX;
4339         }
4340
4341         *set = *time - t;
4342
4343         return sign;
4344 }
4345
4346 static int str2quotaid(__u32 *id, const char *arg)
4347 {
4348         unsigned long int projid_tmp = 0;
4349         char *endptr = NULL;
4350
4351         projid_tmp = strtoul(arg, &endptr, 10);
4352         if (*endptr != '\0')
4353                 return -EINVAL;
4354         if (projid_tmp >= UINT32_MAX)
4355                 return -ERANGE;
4356
4357         *id = projid_tmp;
4358         return 0;
4359 }
4360
4361 static int name2uid(unsigned int *id, const char *name)
4362 {
4363         struct passwd *passwd;
4364
4365         passwd = getpwnam(name);
4366         if (!passwd)
4367                 return -ENOENT;
4368         *id = passwd->pw_uid;
4369
4370         return 0;
4371 }
4372
4373 static int name2gid(unsigned int *id, const char *name)
4374 {
4375         struct group *group;
4376
4377         group = getgrnam(name);
4378         if (!group)
4379                 return -ENOENT;
4380         *id = group->gr_gid;
4381
4382         return 0;
4383 }
4384
4385 static inline int name2projid(unsigned int *id, const char *name)
4386 {
4387         return -ENOTSUP;
4388 }
4389
4390 static int uid2name(char **name, unsigned int id)
4391 {
4392         struct passwd *passwd;
4393
4394         passwd = getpwuid(id);
4395         if (!passwd)
4396                 return -ENOENT;
4397         *name = passwd->pw_name;
4398
4399         return 0;
4400 }
4401
4402 static inline int gid2name(char **name, unsigned int id)
4403 {
4404         struct group *group;
4405
4406         group = getgrgid(id);
4407         if (!group)
4408                 return -ENOENT;
4409         *name = group->gr_name;
4410
4411         return 0;
4412 }
4413
4414 static int name2layout(__u32 *layout, char *name)
4415 {
4416         char *ptr, *layout_name;
4417
4418         *layout = 0;
4419         for (ptr = name; ; ptr = NULL) {
4420                 layout_name = strtok(ptr, ",");
4421                 if (!layout_name)
4422                         break;
4423                 if (strcmp(layout_name, "released") == 0)
4424                         *layout |= LOV_PATTERN_F_RELEASED;
4425                 else if (strcmp(layout_name, "raid0") == 0)
4426                         *layout |= LOV_PATTERN_RAID0;
4427                 else if (strcmp(layout_name, "mdt") == 0)
4428                         *layout |= LOV_PATTERN_MDT;
4429                 else if (strcmp(layout_name, "overstriping") == 0)
4430                         *layout |= LOV_PATTERN_OVERSTRIPING;
4431                 else
4432                         return -1;
4433         }
4434         return 0;
4435 }
4436
4437 static int lfs_find(int argc, char **argv)
4438 {
4439         int c, rc;
4440         int ret = 0;
4441         time_t t;
4442         struct find_param param = {
4443                 .fp_max_depth = -1,
4444                 .fp_quiet = 1,
4445                 .fp_time_margin = FP_DEFAULT_TIME_MARGIN,
4446         };
4447         struct option long_opts[] = {
4448         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
4449         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
4450         { .val = 'B',   .name = "btime",        .has_arg = required_argument },
4451         { .val = 'B',   .name = "Btime",        .has_arg = required_argument },
4452         { .val = LFS_COMP_COUNT_OPT,
4453                         .name = "comp-count",   .has_arg = required_argument },
4454         { .val = LFS_COMP_COUNT_OPT,
4455                         .name = "component-count",
4456                                                 .has_arg = required_argument },
4457         { .val = LFS_COMP_FLAGS_OPT,
4458                         .name = "comp-flags",   .has_arg = required_argument },
4459         { .val = LFS_COMP_FLAGS_OPT,
4460                         .name = "component-flags",
4461                                                 .has_arg = required_argument },
4462         { .val = LFS_COMP_START_OPT,
4463                         .name = "comp-start",   .has_arg = required_argument },
4464         { .val = LFS_COMP_START_OPT,
4465                         .name = "component-start",
4466                                                 .has_arg = required_argument },
4467         { .val = LFS_MIRROR_STATE_OPT,
4468                         .name = "mirror-state", .has_arg = required_argument },
4469         { .val = LFS_NEWERXY_OPT,
4470                         .name = "newer",        .has_arg = required_argument},
4471         { .val = LFS_NEWERXY_OPT,
4472                         .name = "neweraa",      .has_arg = required_argument},
4473         { .val = LFS_NEWERXY_OPT,
4474                         .name = "neweram",      .has_arg = required_argument},
4475         { .val = LFS_NEWERXY_OPT,
4476                         .name = "newerac",      .has_arg = required_argument},
4477         { .val = LFS_NEWERXY_OPT,
4478                         .name = "newerab",      .has_arg = required_argument},
4479         { .val = LFS_NEWERXY_OPT,
4480                         .name = "newerma",      .has_arg = required_argument},
4481         { .val = LFS_NEWERXY_OPT,
4482                         .name = "newermm",      .has_arg = required_argument},
4483         { .val = LFS_NEWERXY_OPT,
4484                         .name = "newermc",      .has_arg = required_argument},
4485         { .val = LFS_NEWERXY_OPT,
4486                         .name = "newermb",      .has_arg = required_argument},
4487         { .val = LFS_NEWERXY_OPT,
4488                         .name = "newerca",      .has_arg = required_argument},
4489         { .val = LFS_NEWERXY_OPT,
4490                         .name = "newercm",      .has_arg = required_argument},
4491         { .val = LFS_NEWERXY_OPT,
4492                         .name = "newercc",      .has_arg = required_argument},
4493         { .val = LFS_NEWERXY_OPT,
4494                         .name = "newercb",      .has_arg = required_argument},
4495         { .val = LFS_NEWERXY_OPT,
4496                         .name = "newerba",      .has_arg = required_argument},
4497         { .val = LFS_NEWERXY_OPT,
4498                         .name = "newerbm",      .has_arg = required_argument},
4499         { .val = LFS_NEWERXY_OPT,
4500                         .name = "newerbc",      .has_arg = required_argument},
4501         { .val = LFS_NEWERXY_OPT,
4502                         .name = "newerbb",      .has_arg = required_argument},
4503         { .val = LFS_NEWERXY_OPT,
4504                         .name = "newerBa",      .has_arg = required_argument},
4505         { .val = LFS_NEWERXY_OPT,
4506                         .name = "newerBm",      .has_arg = required_argument},
4507         { .val = LFS_NEWERXY_OPT,
4508                         .name = "newerBc",      .has_arg = required_argument},
4509         { .val = LFS_NEWERXY_OPT,
4510                         .name = "newerBB",      .has_arg = required_argument},
4511         { .val = LFS_NEWERXY_OPT,
4512                         .name = "newerat",      .has_arg = required_argument},
4513         { .val = LFS_NEWERXY_OPT,
4514                         .name = "newermt",      .has_arg = required_argument},
4515         { .val = LFS_NEWERXY_OPT,
4516                         .name = "newerct",      .has_arg = required_argument},
4517         { .val = LFS_NEWERXY_OPT,
4518                         .name = "newerbt",      .has_arg = required_argument},
4519         { .val = LFS_NEWERXY_OPT,
4520                         .name = "newerBt",      .has_arg = required_argument},
4521         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
4522         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
4523         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
4524 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
4525         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
4526         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
4527         { .val = 'E',   .name = "component-end",
4528                                                 .has_arg = required_argument },
4529 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
4530         { .val = LFS_LAYOUT_FOREIGN_OPT,
4531                         .name = "foreign",      .has_arg = optional_argument},
4532         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
4533         { .val = 'G',   .name = "group",        .has_arg = required_argument },
4534         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4535         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
4536         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
4537 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
4538         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
4539         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
4540         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
4541         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4542         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
4543         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
4544         { .val = 'n',   .name = "name",         .has_arg = required_argument },
4545         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
4546 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
4547         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4548         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4549         /* no short option for pool yet, can be 'p' after 2.18 */
4550         { .val = LFS_POOL_OPT,
4551                         .name = "pool",         .has_arg = required_argument },
4552         { .val = '0',   .name = "print0",       .has_arg = no_argument },
4553         { .val = 'P',   .name = "print",        .has_arg = no_argument },
4554         { .val = LFS_PROJID_OPT,
4555                         .name = "projid",       .has_arg = required_argument },
4556 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
4557 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
4558 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
4559         { .val = 's',   .name = "size",         .has_arg = required_argument },
4560         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
4561         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
4562         { .val = 't',   .name = "type",         .has_arg = required_argument },
4563         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4564         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
4565         { .val = 'U',   .name = "user",         .has_arg = required_argument },
4566         { .val = 'z',   .name = "extension-size",
4567                                                 .has_arg = required_argument },
4568         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument },
4569 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
4570 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
4571         { .name = NULL } };
4572         int optidx = 0;
4573         int pathstart = -1;
4574         int pathend = -1;
4575         int pathbad = -1;
4576         int neg_opt = 0;
4577         time_t *xtime;
4578         int *xsign;
4579         int isoption;
4580         char *endptr;
4581
4582         time(&t);
4583
4584         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
4585         while ((c = getopt_long_only(argc, argv,
4586                 "-0A:b:B:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:vz:",
4587                 long_opts, &optidx)) >= 0) {
4588                 xtime = NULL;
4589                 xsign = NULL;
4590                 if (neg_opt)
4591                         --neg_opt;
4592                 /* '!' is part of option */
4593                 /*
4594                  * when getopt_long_only() finds a string which is not
4595                  * an option nor a known option argument it returns 1
4596                  * in that case if we already have found pathstart and pathend
4597                  * (i.e. we have the list of pathnames),
4598                  * the only supported value is "!"
4599                  */
4600                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4601                 if (!isoption && pathend != -1) {
4602                         fprintf(stderr,
4603                                 "err: %s: filename|dirname must either precede options or follow options\n",
4604                                 argv[0]);
4605                         ret = CMD_HELP;
4606                         goto err;
4607                 }
4608                 if (!isoption && pathstart == -1)
4609                         pathstart = optind - 1;
4610                 if (isoption && pathstart != -1 && pathend == -1)
4611                         pathend = optind - 2;
4612                 switch (c) {
4613                 case 0:
4614                         /* Long options. */
4615                         break;
4616                 case 1:
4617                         /*
4618                          * unknown; opt is "!" or path component,
4619                          * checking done above.
4620                          */
4621                         if (strcmp(optarg, "!") == 0)
4622                                 neg_opt = 2;
4623                         break;
4624                 case 'A':
4625                         xtime = &param.fp_atime;
4626                         xsign = &param.fp_asign;
4627                         param.fp_exclude_atime = !!neg_opt;
4628                         /* no break, this falls through to 'B' for btime */
4629                 case 'B':
4630                         if (c == 'B') {
4631                                 xtime = &param.fp_btime;
4632                                 xsign = &param.fp_bsign;
4633                                 param.fp_exclude_btime = !!neg_opt;
4634                         }
4635                         /* no break, this falls through to 'C' for ctime */
4636                 case 'C':
4637                         if (c == 'C') {
4638                                 xtime = &param.fp_ctime;
4639                                 xsign = &param.fp_csign;
4640                                 param.fp_exclude_ctime = !!neg_opt;
4641                         }
4642                         /* no break, this falls through to 'M' for mtime */
4643                 case 'M':
4644                         if (c == 'M') {
4645                                 xtime = &param.fp_mtime;
4646                                 xsign = &param.fp_msign;
4647                                 param.fp_exclude_mtime = !!neg_opt;
4648                         }
4649                         rc = set_time(&param, &t, xtime, optarg);
4650                         if (rc == LONG_MAX) {
4651                                 ret = -1;
4652                                 goto err;
4653                         }
4654                         if (rc)
4655                                 *xsign = rc;
4656                         break;
4657                 case 'b':
4658                         if (optarg[0] == '+') {
4659                                 param.fp_blocks_sign = -1;
4660                                 optarg++;
4661                         } else if (optarg[0] == '-') {
4662                                 param.fp_blocks_sign =  1;
4663                                 optarg++;
4664                         }
4665
4666                         param.fp_blocks_units = 1024;
4667                         ret = llapi_parse_size(optarg, &param.fp_blocks,
4668                                                &param.fp_blocks_units, 0);
4669                         if (ret) {
4670                                 fprintf(stderr, "error: bad blocks '%s'\n",
4671                                         optarg);
4672                                 goto err;
4673                         }
4674                         param.fp_check_blocks = 1;
4675                         param.fp_exclude_blocks = !!neg_opt;
4676                         break;
4677                 case LFS_COMP_COUNT_OPT:
4678                         if (optarg[0] == '+') {
4679                                 param.fp_comp_count_sign = -1;
4680                                 optarg++;
4681                         } else if (optarg[0] == '-') {
4682                                 param.fp_comp_count_sign =  1;
4683                                 optarg++;
4684                         }
4685
4686                         errno = 0;
4687                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
4688                         if (errno != 0 || *endptr != '\0' ||
4689                             param.fp_comp_count > UINT32_MAX) {
4690                                 fprintf(stderr,
4691                                         "error: bad component count '%s'\n",
4692                                         optarg);
4693                                 goto err;
4694                         }
4695                         param.fp_check_comp_count = 1;
4696                         param.fp_exclude_comp_count = !!neg_opt;
4697                         break;
4698                 case LFS_COMP_FLAGS_OPT:
4699                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
4700                                             &param.fp_comp_neg_flags);
4701                         if (rc) {
4702                                 fprintf(stderr,
4703                                         "error: bad component flags '%s'\n",
4704                                         optarg);
4705                                 goto err;
4706                         }
4707                         param.fp_check_comp_flags = 1;
4708                         if (neg_opt) {
4709                                 __u32 flags = param.fp_comp_neg_flags;
4710
4711                                 param.fp_comp_neg_flags = param.fp_comp_flags;
4712                                 param.fp_comp_flags = flags;
4713                         }
4714                         break;
4715                 case LFS_COMP_START_OPT:
4716                         if (optarg[0] == '+') {
4717                                 param.fp_comp_start_sign = -1;
4718                                 optarg++;
4719                         } else if (optarg[0] == '-') {
4720                                 param.fp_comp_start_sign =  1;
4721                                 optarg++;
4722                         }
4723
4724                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
4725                                               &param.fp_comp_start_units, 0);
4726                         if (rc) {
4727                                 fprintf(stderr,
4728                                         "error: bad component start '%s'\n",
4729                                         optarg);
4730                                 goto err;
4731                         }
4732                         param.fp_check_comp_start = 1;
4733                         param.fp_exclude_comp_start = !!neg_opt;
4734                         break;
4735                 case LFS_MIRROR_STATE_OPT:
4736                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
4737                                               &param.fp_mirror_neg_state);
4738                         if (rc) {
4739                                 fprintf(stderr,
4740                                         "error: bad mirrored file state '%s'\n",
4741                                         optarg);
4742                                 goto err;
4743                         }
4744                         param.fp_check_mirror_state = 1;
4745                         if (neg_opt) {
4746                                 __u16 state = param.fp_mirror_neg_state;
4747
4748                                 param.fp_mirror_neg_state =
4749                                         param.fp_mirror_state;
4750                                 param.fp_mirror_state = state;
4751                         }
4752                         break;
4753                 case 'c':
4754                         if (optarg[0] == '+') {
4755                                 param.fp_stripe_count_sign = -1;
4756                                 optarg++;
4757                         } else if (optarg[0] == '-') {
4758                                 param.fp_stripe_count_sign =  1;
4759                                 optarg++;
4760                         }
4761
4762                         errno = 0;
4763                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
4764                         if (errno != 0 || *endptr != '\0' ||
4765                             param.fp_stripe_count > LOV_MAX_STRIPE_COUNT) {
4766                                 fprintf(stderr,
4767                                         "error: bad stripe_count '%s'\n",
4768                                         optarg);
4769                                 ret = -1;
4770                                 goto err;
4771                         }
4772                         param.fp_check_stripe_count = 1;
4773                         param.fp_exclude_stripe_count = !!neg_opt;
4774                         break;
4775                 case 'D':
4776                         param.fp_max_depth = strtol(optarg, 0, 0);
4777                         break;
4778                 case 'E':
4779                         if (optarg[0] == '+') {
4780                                 param.fp_comp_end_sign = -1;
4781                                 optarg++;
4782                         } else if (optarg[0] == '-') {
4783                                 param.fp_comp_end_sign =  1;
4784                                 optarg++;
4785                         }
4786
4787                         if (arg_is_eof(optarg)) {
4788                                 param.fp_comp_end = LUSTRE_EOF;
4789                                 param.fp_comp_end_units = 1;
4790                                 rc = 0;
4791                         } else {
4792                                 rc = llapi_parse_size(optarg,
4793                                                 &param.fp_comp_end,
4794                                                 &param.fp_comp_end_units, 0);
4795                                 /* assume units of KB if too small */
4796                                 if (param.fp_comp_end < 4096)
4797                                         param.fp_comp_end *= 1024;
4798                         }
4799                         if (rc) {
4800                                 fprintf(stderr,
4801                                         "error: bad component end '%s'\n",
4802                                         optarg);
4803                                 goto err;
4804                         }
4805                         param.fp_check_comp_end = 1;
4806                         param.fp_exclude_comp_end = !!neg_opt;
4807                         break;
4808                 case LFS_LAYOUT_FOREIGN_OPT: {
4809                         /* all types by default */
4810                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
4811
4812                         if (optarg) {
4813                                 /* check pure numeric */
4814                                 type = strtoul(optarg, &endptr, 0);
4815                                 if (*endptr) {
4816                                         /* check name */
4817                                         type = check_foreign_type_name(optarg);
4818                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
4819                                                 fprintf(stderr,
4820                                                         "%s %s: unknown foreign type '%s'\n",
4821                                                         progname, argv[0],
4822                                                         optarg);
4823                                                 return CMD_HELP;
4824                                         }
4825                                 } else if (type >= UINT32_MAX) {
4826                                         fprintf(stderr,
4827                                                 "%s %s: invalid foreign type '%s'\n",
4828                                                 progname, argv[0], optarg);
4829                                         return CMD_HELP;
4830                                 }
4831                         }
4832                         param.fp_foreign_type = type;
4833                         param.fp_check_foreign = 1;
4834                         param.fp_exclude_foreign = !!neg_opt;
4835                         break;
4836                 }
4837                 case LFS_NEWERXY_OPT: {
4838                         char x = 'm';
4839                         char y = 'm';
4840                         int xidx;
4841                         int negidx;
4842                         time_t *newery;
4843                         time_t ref = time(NULL);
4844
4845                         /* no need to check bad options, they won't get here */
4846                         if (strlen(long_opts[optidx].name) == 7) {
4847                                 x = long_opts[optidx].name[5];
4848                                 y = long_opts[optidx].name[6];
4849                         }
4850
4851                         if (y == 't') {
4852                                 static const char *const fmts[] = {
4853                                         "%Y-%m-%d %H:%M:%S",
4854                                         "%Y-%m-%d %H:%M",
4855                                         "%Y-%m-%d",
4856                                         "%H:%M:%S", /* sometime today */
4857                                         "%H:%M",
4858                                         "@%s",
4859                                         "%s",
4860                                         NULL };
4861                                 struct tm tm;
4862                                 bool found = false;
4863                                 int i;
4864
4865                                 for (i = 0; fmts[i] != NULL; i++) {
4866                                         char *ptr;
4867
4868                                         /* Init for times relative to today */
4869                                         if (strncmp(fmts[i], "%H", 2) == 0)
4870                                                 localtime_r(&ref, &tm);
4871                                         else
4872                                                 memset(&tm, 0, sizeof(tm));
4873                                         ptr = strptime(optarg, fmts[i], &tm);
4874                                         /* Skip spaces */
4875                                         while (ptr && isspace(*ptr))
4876                                                 ptr++;
4877                                         if (ptr == optarg + strlen(optarg)) {
4878                                                 found = true;
4879                                                 break;
4880                                         }
4881                                 }
4882
4883                                 if (!found) {
4884                                         fprintf(stderr,
4885                                                 "%s: invalid time '%s'\n",
4886                                                 progname, optarg);
4887                                         fprintf(stderr,
4888                                                 "supported formats are:\n  ");
4889                                         for (i = 0; fmts[i] != NULL; i++)
4890                                                 fprintf(stderr, "'%s', ",
4891                                                         fmts[i]);
4892                                         fprintf(stderr, "\n");
4893                                         ret = -EINVAL;
4894                                         goto err;
4895                                 }
4896
4897                                 ref = mktime(&tm);
4898                         } else if (y == 'b' || y == 'B') {
4899                                 lstatx_t stx;
4900
4901                                 rc = llapi_get_lum_file(optarg, NULL, &stx,
4902                                                         NULL, 0);
4903                                 if (rc || !(stx.stx_mask & STATX_BTIME)) {
4904                                         if (!(stx.stx_mask & STATX_BTIME))
4905                                                 ret = -EOPNOTSUPP;
4906                                         else
4907                                                 ret = -errno;
4908                                         fprintf(stderr,
4909                                                 "%s: get btime failed '%s': %s\n",
4910                                                 progname, optarg,
4911                                                 strerror(-ret));
4912                                         goto err;
4913                                 }
4914
4915                                 ref = stx.stx_btime.tv_sec;
4916                         } else {
4917                                 struct stat statbuf;
4918
4919                                 if (stat(optarg, &statbuf) < 0) {
4920                                         fprintf(stderr,
4921                                                 "%s: cannot stat file '%s': %s\n",
4922                                                 progname, optarg,
4923                                                 strerror(errno));
4924                                         ret = -errno;
4925                                         goto err;
4926                                 }
4927
4928                                 switch (y) {
4929                                 case 'a':
4930                                         ref = statbuf.st_atime;
4931                                         break;
4932                                 case 'm':
4933                                         ref = statbuf.st_mtime;
4934                                         break;
4935                                 case 'c':
4936                                         ref = statbuf.st_ctime;
4937                                         break;
4938                                 default:
4939                                         fprintf(stderr,
4940                                                 "%s: invalid Y argument: '%c'\n",
4941                                                 progname, x);
4942                                         ret = -EINVAL;
4943                                         goto err;
4944                                 }
4945                         }
4946
4947                         switch (x) {
4948                         case 'a':
4949                                 xidx = NEWERXY_ATIME;
4950                                 break;
4951                         case 'm':
4952                                 xidx = NEWERXY_MTIME;
4953                                 break;
4954                         case 'c':
4955                                 xidx = NEWERXY_CTIME;
4956                                 break;
4957                         case 'b':
4958                         case 'B':
4959                                 xidx = NEWERXY_BTIME;
4960                                 break;
4961                         default:
4962                                 fprintf(stderr,
4963                                         "%s: invalid X argument: '%c'\n",
4964                                         progname, x);
4965                                 ret = -EINVAL;
4966                                 goto err;
4967                         }
4968
4969                         negidx = !!neg_opt;
4970                         newery = &param.fp_newery[xidx][negidx];
4971
4972                         if (*newery == 0) {
4973                                 *newery = ref;
4974                         } else {
4975                                 if (negidx)
4976                                         *newery = *newery > ref ? ref : *newery;
4977                                 else
4978                                         *newery = *newery > ref ? *newery : ref;
4979                         }
4980                         param.fp_newerxy = 1;
4981                         break;
4982                 }
4983                 case 'g':
4984                 case 'G':
4985                         rc = name2gid(&param.fp_gid, optarg);
4986                         if (rc) {
4987                                 if (str2quotaid(&param.fp_gid, optarg)) {
4988                                         fprintf(stderr,
4989                                                 "Group/GID: %s cannot be found.\n",
4990                                                 optarg);
4991                                         ret = -1;
4992                                         goto err;
4993                                 }
4994                         }
4995                         param.fp_exclude_gid = !!neg_opt;
4996                         param.fp_check_gid = 1;
4997                         break;
4998                 case 'H':
4999                         param.fp_hash_type = check_hashtype(optarg);
5000                         if (param.fp_hash_type == 0) {
5001                                 fprintf(stderr, "error: bad hash_type '%s'\n",
5002                                         optarg);
5003                                 ret = -1;
5004                                 goto err;
5005                         }
5006                         param.fp_check_hash_type = 1;
5007                         param.fp_exclude_hash_type = !!neg_opt;
5008                         break;
5009                 case 'l':
5010                         param.fp_lazy = 1;
5011                         break;
5012                 case 'L':
5013                         ret = name2layout(&param.fp_layout, optarg);
5014                         if (ret)
5015                                 goto err;
5016                         param.fp_exclude_layout = !!neg_opt;
5017                         param.fp_check_layout = 1;
5018                         break;
5019                 case 'u':
5020                 case 'U':
5021                         rc = name2uid(&param.fp_uid, optarg);
5022                         if (rc) {
5023                                 if (str2quotaid(&param.fp_uid, optarg)) {
5024                                         fprintf(stderr,
5025                                                 "User/UID: %s cannot be found.\n",
5026                                                 optarg);
5027                                         ret = -1;
5028                                         goto err;
5029                                 }
5030                         }
5031                         param.fp_exclude_uid = !!neg_opt;
5032                         param.fp_check_uid = 1;
5033                         break;
5034                 case 'n':
5035                         param.fp_pattern = (char *)optarg;
5036                         param.fp_exclude_pattern = !!neg_opt;
5037                         break;
5038                 case 'N':
5039                         if (optarg[0] == '+') {
5040                                 param.fp_mirror_count_sign = -1;
5041                                 optarg++;
5042                         } else if (optarg[0] == '-') {
5043                                 param.fp_mirror_count_sign =  1;
5044                                 optarg++;
5045                         }
5046
5047                         errno = 0;
5048                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
5049                         if (errno != 0 || *endptr != '\0' ||
5050                             param.fp_mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
5051                                 fprintf(stderr,
5052                                         "error: bad mirror count '%s'\n",
5053                                         optarg);
5054                                 goto err;
5055                         }
5056                         param.fp_check_mirror_count = 1;
5057                         param.fp_exclude_mirror_count = !!neg_opt;
5058                         break;
5059                 case 'm':
5060                 case 'i':
5061                 case 'O': {
5062                         char *buf, *token, *next, *p;
5063                         int len = 1;
5064                         void *tmp;
5065
5066                         buf = strdup(optarg);
5067                         if (!buf) {
5068                                 ret = -ENOMEM;
5069                                 goto err;
5070                         }
5071
5072                         param.fp_exclude_obd = !!neg_opt;
5073
5074                         token = buf;
5075                         while (token && *token) {
5076                                 token = strchr(token, ',');
5077                                 if (token) {
5078                                         len++;
5079                                         token++;
5080                                 }
5081                         }
5082                         if (c == 'm') {
5083                                 param.fp_exclude_mdt = !!neg_opt;
5084                                 param.fp_num_alloc_mdts += len;
5085                                 tmp = realloc(param.fp_mdt_uuid,
5086                                               param.fp_num_alloc_mdts *
5087                                               sizeof(*param.fp_mdt_uuid));
5088                                 if (!tmp) {
5089                                         ret = -ENOMEM;
5090                                         goto err_free;
5091                                 }
5092
5093                                 param.fp_mdt_uuid = tmp;
5094                         } else {
5095                                 param.fp_exclude_obd = !!neg_opt;
5096                                 param.fp_num_alloc_obds += len;
5097                                 tmp = realloc(param.fp_obd_uuid,
5098                                               param.fp_num_alloc_obds *
5099                                               sizeof(*param.fp_obd_uuid));
5100                                 if (!tmp) {
5101                                         ret = -ENOMEM;
5102                                         goto err_free;
5103                                 }
5104
5105                                 param.fp_obd_uuid = tmp;
5106                         }
5107                         for (token = buf; token && *token; token = next) {
5108                                 struct obd_uuid *puuid;
5109
5110                                 if (c == 'm') {
5111                                         puuid =
5112                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
5113                                 } else {
5114                                         puuid =
5115                                         &param.fp_obd_uuid[param.fp_num_obds++];
5116                                 }
5117                                 p = strchr(token, ',');
5118                                 next = 0;
5119                                 if (p) {
5120                                         *p = 0;
5121                                         next = p+1;
5122                                 }
5123
5124                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
5125                                         ret = -E2BIG;
5126                                         goto err_free;
5127                                 }
5128
5129                                 strncpy(puuid->uuid, token,
5130                                         sizeof(puuid->uuid));
5131                         }
5132 err_free:
5133                         if (buf)
5134                                 free(buf);
5135                         break;
5136                 }
5137 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
5138                 case 'p':
5139 #endif
5140                 case LFS_POOL_OPT:
5141                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
5142                                 fprintf(stderr,
5143                                         "Pool name %s is too long (max %d)\n",
5144                                         optarg, LOV_MAXPOOLNAME);
5145                                 ret = -1;
5146                                 goto err;
5147                         }
5148                         /*
5149                          * We do check for empty pool because empty pool
5150                          * is used to find V1 LOV attributes
5151                          */
5152                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
5153                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
5154                         param.fp_exclude_pool = !!neg_opt;
5155                         param.fp_check_pool = 1;
5156                         break;
5157 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
5158                 case 'p': /* want this for --pool, to match getstripe/find */
5159                         fprintf(stderr,
5160                                 "warning: -p deprecated, use --print0 or -0\n");
5161 #endif
5162                 case '0':
5163                         param.fp_zero_end = 1;
5164                         break;
5165                 case 'P': /* we always print, this option is a no-op */
5166                         break;
5167                 case LFS_PROJID_OPT:
5168                         rc = name2projid(&param.fp_projid, optarg);
5169                         if (rc) {
5170                                 if (str2quotaid(&param.fp_projid, optarg)) {
5171                                         fprintf(stderr,
5172                                                 "Invalid project ID: %s\n",
5173                                                 optarg);
5174                                         ret = -1;
5175                                         goto err;
5176                                 }
5177                         }
5178                         param.fp_exclude_projid = !!neg_opt;
5179                         param.fp_check_projid = 1;
5180                         break;
5181                 case 's':
5182                         if (optarg[0] == '+') {
5183                                 param.fp_size_sign = -1;
5184                                 optarg++;
5185                         } else if (optarg[0] == '-') {
5186                                 param.fp_size_sign =  1;
5187                                 optarg++;
5188                         }
5189
5190                         ret = llapi_parse_size(optarg, &param.fp_size,
5191                                                &param.fp_size_units, 0);
5192                         if (ret) {
5193                                 fprintf(stderr, "error: bad file size '%s'\n",
5194                                         optarg);
5195                                 goto err;
5196                         }
5197                         param.fp_check_size = 1;
5198                         param.fp_exclude_size = !!neg_opt;
5199                         break;
5200                 case 'S':
5201                         if (optarg[0] == '+') {
5202                                 param.fp_stripe_size_sign = -1;
5203                                 optarg++;
5204                         } else if (optarg[0] == '-') {
5205                                 param.fp_stripe_size_sign =  1;
5206                                 optarg++;
5207                         }
5208
5209                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
5210                                                &param.fp_stripe_size_units, 0);
5211                         /* assume units of KB if too small to be valid */
5212                         if (param.fp_stripe_size < 4096)
5213                                 param.fp_stripe_size *= 1024;
5214                         if (ret) {
5215                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
5216                                         optarg);
5217                                 goto err;
5218                         }
5219                         param.fp_check_stripe_size = 1;
5220                         param.fp_exclude_stripe_size = !!neg_opt;
5221                         break;
5222                 case 't':
5223                         param.fp_exclude_type = !!neg_opt;
5224                         switch (optarg[0]) {
5225                         case 'b':
5226                                 param.fp_type = S_IFBLK;
5227                                 break;
5228                         case 'c':
5229                                 param.fp_type = S_IFCHR;
5230                                 break;
5231                         case 'd':
5232                                 param.fp_type = S_IFDIR;
5233                                 break;
5234                         case 'f':
5235                                 param.fp_type = S_IFREG;
5236                                 break;
5237                         case 'l':
5238                                 param.fp_type = S_IFLNK;
5239                                 break;
5240                         case 'p':
5241                                 param.fp_type = S_IFIFO;
5242                                 break;
5243                         case 's':
5244                                 param.fp_type = S_IFSOCK;
5245                                 break;
5246                         default:
5247                                 fprintf(stderr, "error: %s: bad type '%s'\n",
5248                                         argv[0], optarg);
5249                                 ret = CMD_HELP;
5250                                 goto err;
5251                         };
5252                         break;
5253                 case 'T':
5254                         if (optarg[0] == '+') {
5255                                 param.fp_mdt_count_sign = -1;
5256                                 optarg++;
5257                         } else if (optarg[0] == '-') {
5258                                 param.fp_mdt_count_sign =  1;
5259                                 optarg++;
5260                         }
5261
5262                         errno = 0;
5263                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
5264                         if (errno != 0 || *endptr != '\0' ||
5265                             param.fp_mdt_count >= UINT32_MAX) {
5266                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
5267                                         optarg);
5268                                 ret = -1;
5269                                 goto err;
5270                         }
5271                         param.fp_check_mdt_count = 1;
5272                         param.fp_exclude_mdt_count = !!neg_opt;
5273                         break;
5274                 case 'z':
5275                         if (optarg[0] == '+') {
5276                                 param.fp_ext_size_sign = -1;
5277                                 optarg++;
5278                         } else if (optarg[0] == '-') {
5279                                 param.fp_ext_size_sign =  1;
5280                                 optarg++;
5281                         }
5282
5283                         ret = llapi_parse_size(optarg, &param.fp_ext_size,
5284                                                &param.fp_ext_size_units, 0);
5285                         if (ret) {
5286                                 fprintf(stderr, "error: bad ext-size '%s'\n",
5287                                         optarg);
5288                                 goto err;
5289                         }
5290                         param.fp_ext_size /= SEL_UNIT_SIZE;
5291                         param.fp_ext_size_units /= SEL_UNIT_SIZE;
5292                         param.fp_check_ext_size = 1;
5293                         param.fp_exclude_ext_size = !!neg_opt;
5294                         break;
5295                 default:
5296                         ret = CMD_HELP;
5297                         goto err;
5298                 };
5299         }
5300
5301         if (pathstart == -1) {
5302                 fprintf(stderr, "error: %s: no filename|pathname\n",
5303                         argv[0]);
5304                 ret = CMD_HELP;
5305                 goto err;
5306         } else if (pathend == -1) {
5307                 /* no options */
5308                 pathend = argc;
5309         }
5310
5311         do {
5312                 rc = llapi_find(argv[pathstart], &param);
5313                 if (rc && !ret) {
5314                         ret = rc;
5315                         pathbad = pathstart;
5316                 }
5317         } while (++pathstart < pathend);
5318
5319         if (ret)
5320                 fprintf(stderr, "%s: failed for '%s': %s\n",
5321                         progname, argv[pathbad], strerror(-rc));
5322
5323 err:
5324         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
5325                 free(param.fp_obd_uuid);
5326
5327         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
5328                 free(param.fp_mdt_uuid);
5329
5330         return ret;
5331 }
5332
5333 static int lfs_getstripe_internal(int argc, char **argv,
5334                                   struct find_param *param)
5335 {
5336         struct option long_opts[] = {
5337 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
5338 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
5339 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
5340 /* find { .val = 'B',   .name = "Btime",        .has_arg = required_argument }*/
5341         { .val = LFS_COMP_COUNT_OPT,
5342                         .name = "comp-count",   .has_arg = no_argument },
5343         { .val = LFS_COMP_COUNT_OPT,
5344                 .name = "component-count",      .has_arg = no_argument },
5345         { .val = LFS_COMP_FLAGS_OPT,
5346                         .name = "comp-flags",   .has_arg = optional_argument },
5347         { .val = LFS_COMP_FLAGS_OPT,
5348                 .name = "component-flags",      .has_arg = optional_argument },
5349         { .val = LFS_COMP_START_OPT,
5350                         .name = "comp-start",   .has_arg = optional_argument },
5351         { .val = LFS_COMP_START_OPT,
5352                 .name = "component-start",      .has_arg = optional_argument },
5353         { .val = LFS_MIRROR_INDEX_OPT,
5354                 .name = "mirror-index",         .has_arg = required_argument },
5355         { .val = LFS_MIRROR_ID_OPT,
5356                 .name = "mirror-id",            .has_arg = required_argument },
5357         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
5358         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
5359 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
5360         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
5361         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5362         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
5363         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
5364         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
5365         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
5366 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
5367 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
5368         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
5369         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
5370         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
5371         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
5372 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
5373         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
5374         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
5375         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5376         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
5377 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
5378 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
5379         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
5380         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5381         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
5382         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
5383 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
5384         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
5385         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5386         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
5387         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
5388         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
5389 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
5390 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
5391 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
5392 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
5393         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5394         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5395         { .val = 'z',   .name = "extension-size", .has_arg = no_argument },
5396         { .val = 'z',   .name = "ext-size",     .has_arg = no_argument },
5397         { .name = NULL } };
5398         int c, rc;
5399         int neg_opt = 0;
5400         int pathstart = -1, pathend = -1;
5401         int isoption;
5402         char *end, *tmp;
5403
5404         while ((c = getopt_long(argc, argv,
5405                         "-cdDE::FghiI::LmMNoO:pqrRsSvyz",
5406                         long_opts, NULL)) != -1) {
5407                 if (neg_opt)
5408                         --neg_opt;
5409
5410                 /* '!' is part of option */
5411                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5412                 if (!isoption && pathend != -1) {
5413                         fprintf(stderr,
5414                                 "error: %s: filename|dirname must either precede options or follow options\n",
5415                                 argv[0]);
5416                         return CMD_HELP;
5417                 }
5418                 if (!isoption && pathstart == -1)
5419                         pathstart = optind - 1;
5420                 if (isoption && pathstart != -1 && pathend == -1)
5421                         pathend = optind - 2;
5422
5423                 switch (c) {
5424                 case 1:
5425                         /* unknown: opt is "!" */
5426                         if (strcmp(optarg, "!") == 0)
5427                                 neg_opt = 2;
5428                         break;
5429                 case 'c':
5430                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5431                                 param->fp_verbose |= VERBOSE_COUNT;
5432                                 param->fp_max_depth = 0;
5433                         }
5434                         break;
5435                 case LFS_COMP_COUNT_OPT:
5436                         param->fp_verbose |= VERBOSE_COMP_COUNT;
5437                         param->fp_max_depth = 0;
5438                         break;
5439                 case LFS_COMP_FLAGS_OPT:
5440                         if (optarg) {
5441                                 rc = comp_str2flags(optarg,
5442                                                     &param->fp_comp_flags,
5443                                                     &param->fp_comp_neg_flags);
5444                                 if (rc != 0) {
5445                                         fprintf(stderr,
5446                                                 "error: %s bad component flags '%s'.\n",
5447                                                 argv[0], optarg);
5448                                         return CMD_HELP;
5449                                 }
5450                                 param->fp_check_comp_flags = 1;
5451                         } else {
5452                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
5453                                 param->fp_max_depth = 0;
5454                         }
5455                         break;
5456                 case LFS_COMP_START_OPT:
5457                         if (optarg) {
5458                                 tmp = optarg;
5459                                 if (tmp[0] == '+') {
5460                                         param->fp_comp_start_sign = -1;
5461                                         tmp++;
5462                                 } else if (tmp[0] == '-') {
5463                                         param->fp_comp_start_sign = 1;
5464                                         tmp++;
5465                                 }
5466                                 rc = llapi_parse_size(tmp,
5467                                                 &param->fp_comp_start,
5468                                                 &param->fp_comp_start_units, 0);
5469                                 if (rc != 0) {
5470                                         fprintf(stderr,
5471                                                 "error: %s bad component start '%s'.\n",
5472                                                 argv[0], tmp);
5473                                         return CMD_HELP;
5474                                 }
5475                                 param->fp_check_comp_start = 1;
5476                         } else {
5477                                 param->fp_verbose |= VERBOSE_COMP_START;
5478                                 param->fp_max_depth = 0;
5479                         }
5480                         break;
5481                 case LFS_MIRROR_INDEX_OPT: {
5482                         unsigned long int mirror_index;
5483
5484                         if (optarg[0] == '+') {
5485                                 param->fp_mirror_index_sign = -1;
5486                                 optarg++;
5487                         } else if (optarg[0] == '-') {
5488                                 param->fp_mirror_index_sign = 1;
5489                                 optarg++;
5490                         }
5491
5492                         errno = 0;
5493                         mirror_index = strtoul(optarg, &end, 0);
5494                         if (errno != 0 || *end != '\0' ||
5495                             mirror_index > UINT16_MAX || (mirror_index == 0 &&
5496                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
5497                                 fprintf(stderr,
5498                                         "%s %s: invalid mirror index '%s'\n",
5499                                         progname, argv[0], optarg);
5500                                 return CMD_HELP;
5501                         }
5502
5503                         param->fp_mirror_index = (__u16)mirror_index;
5504
5505                         if (param->fp_mirror_id != 0) {
5506                                 fprintf(stderr,
5507                                         "%s %s: can't specify both mirror index and mirror ID\n",
5508                                         progname, argv[0]);
5509                                 return CMD_HELP;
5510                         }
5511                         param->fp_check_mirror_index = 1;
5512                         param->fp_exclude_mirror_index = !!neg_opt;
5513                         break;
5514                 }
5515                 case LFS_MIRROR_ID_OPT: {
5516                         unsigned long int mirror_id;
5517
5518                         if (optarg[0] == '+') {
5519                                 param->fp_mirror_id_sign = -1;
5520                                 optarg++;
5521                         } else if (optarg[0] == '-') {
5522                                 param->fp_mirror_id_sign = 1;
5523                                 optarg++;
5524                         }
5525
5526                         errno = 0;
5527                         mirror_id = strtoul(optarg, &end, 0);
5528                         if (errno != 0 || *end != '\0' ||
5529                             mirror_id > UINT16_MAX || (mirror_id == 0 &&
5530                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
5531                                 fprintf(stderr,
5532                                         "%s %s: invalid mirror ID '%s'\n",
5533                                         progname, argv[0], optarg);
5534                                 return CMD_HELP;
5535                         }
5536
5537                         param->fp_mirror_id = (__u16)mirror_id;
5538
5539                         if (param->fp_mirror_index != 0) {
5540                                 fprintf(stderr,
5541                                         "%s %s: can't specify both mirror index and mirror ID\n",
5542                                         progname, argv[0]);
5543                                 return CMD_HELP;
5544                         }
5545                         param->fp_check_mirror_id = 1;
5546                         param->fp_exclude_mirror_id = !!neg_opt;
5547                         break;
5548                 }
5549                 case 'd':
5550                         param->fp_max_depth = 0;
5551                         break;
5552                 case 'D':
5553                         param->fp_get_default_lmv = 1;
5554                         break;
5555                 case 'E':
5556                         if (optarg) {
5557                                 tmp = optarg;
5558                                 if (tmp[0] == '+') {
5559                                         param->fp_comp_end_sign = -1;
5560                                         tmp++;
5561                                 } else if (tmp[0] == '-') {
5562                                         param->fp_comp_end_sign = 1;
5563                                         tmp++;
5564                                 }
5565
5566                                 if (arg_is_eof(tmp)) {
5567                                         param->fp_comp_end = LUSTRE_EOF;
5568                                         param->fp_comp_end_units = 1;
5569                                         rc = 0;
5570                                 } else {
5571                                         rc = llapi_parse_size(tmp,
5572                                                 &param->fp_comp_end,
5573                                                 &param->fp_comp_end_units, 0);
5574                                         /* assume units of KB if too small */
5575                                         if (param->fp_comp_end < 4096)
5576                                                 param->fp_comp_end *= 1024;
5577                                 }
5578                                 if (rc != 0) {
5579                                         fprintf(stderr,
5580                                                 "error: %s bad component end '%s'.\n",
5581                                                 argv[0], tmp);
5582                                         return CMD_HELP;
5583                                 }
5584                                 param->fp_check_comp_end = 1;
5585                         } else {
5586                                 param->fp_verbose |= VERBOSE_COMP_END;
5587                                 param->fp_max_depth = 0;
5588                         }
5589                         break;
5590                 case 'F':
5591                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5592                                 param->fp_verbose |= VERBOSE_DFID;
5593                                 param->fp_max_depth = 0;
5594                         }
5595                         break;
5596                 case 'g':
5597                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5598                                 param->fp_verbose |= VERBOSE_GENERATION;
5599                                 param->fp_max_depth = 0;
5600                         }
5601                         break;
5602                 case 'i':
5603                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5604                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
5605                                 param->fp_max_depth = 0;
5606                         }
5607                         break;
5608                 case 'I':
5609                         if (optarg) {
5610                                 param->fp_comp_id = strtoul(optarg, &end, 0);
5611                                 if (*end != '\0' || param->fp_comp_id == 0 ||
5612                                     param->fp_comp_id > LCME_ID_MAX) {
5613                                         fprintf(stderr,
5614                                                 "error: %s bad component id '%s'\n",
5615                                                 argv[0], optarg);
5616                                         return CMD_HELP;
5617                                 }
5618                                 param->fp_check_comp_id = 1;
5619                         } else {
5620                                 param->fp_max_depth = 0;
5621                                 param->fp_verbose |= VERBOSE_COMP_ID;
5622                         }
5623                         break;
5624                 case 'L':
5625                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5626                                 param->fp_verbose |= VERBOSE_PATTERN;
5627                                 param->fp_max_depth = 0;
5628                         }
5629                         break;
5630 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5631                 case 'M':
5632                         fprintf(stderr,
5633                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
5634 #endif
5635                 case 'm':
5636                         if (!(param->fp_verbose & VERBOSE_DETAIL))
5637                                 param->fp_max_depth = 0;
5638                         param->fp_verbose |= VERBOSE_MDTINDEX;
5639                         break;
5640                 case 'N':
5641                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5642                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
5643                                 param->fp_max_depth = 0;
5644                         }
5645                         break;
5646                 case 'O':
5647                         if (param->fp_obd_uuid) {
5648                                 fprintf(stderr,
5649                                         "error: %s: only one obduuid allowed",
5650                                         argv[0]);
5651                                 return CMD_HELP;
5652                         }
5653                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
5654                         break;
5655                 case 'p':
5656                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5657                                 param->fp_verbose |= VERBOSE_POOL;
5658                                 param->fp_max_depth = 0;
5659                         }
5660                         break;
5661                 case 'q':
5662                         param->fp_quiet++;
5663                         break;
5664                 case 'r':
5665                         param->fp_recursive = 1;
5666                         break;
5667                 case 'R':
5668                         param->fp_raw = 1;
5669                         break;
5670                 case 'S':
5671                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5672                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
5673                                 param->fp_max_depth = 0;
5674                         }
5675                         break;
5676                 case 'v':
5677                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
5678                         break;
5679                 case 'y':
5680                         param->fp_yaml = 1;
5681                         break;
5682                 case 'z':
5683                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5684                                 param->fp_verbose |= VERBOSE_EXT_SIZE;
5685                                 param->fp_max_depth = 0;
5686                         }
5687                         break;
5688                 default:
5689                         return CMD_HELP;
5690                 }
5691         }
5692
5693         if (pathstart == -1) {
5694                 fprintf(stderr, "error: %s: no filename|pathname\n",
5695                                 argv[0]);
5696                 return CMD_HELP;
5697         } else if (pathend == -1) {
5698                 /* no options */
5699                 pathend = argc;
5700         }
5701
5702         if (pathend > argc)
5703                 return CMD_HELP;
5704
5705         if (param->fp_recursive)
5706                 param->fp_max_depth = -1;
5707         else if (param->fp_verbose & VERBOSE_DETAIL)
5708                 param->fp_max_depth = 1;
5709
5710         if (!param->fp_verbose)
5711                 param->fp_verbose = VERBOSE_DEFAULT;
5712         if (param->fp_quiet)
5713                 param->fp_verbose = VERBOSE_OBJID;
5714
5715         do {
5716                 rc = llapi_getstripe(argv[pathstart], param);
5717         } while (++pathstart < pathend && !rc);
5718
5719         if (rc)
5720                 fprintf(stderr, "error: %s failed for %s.\n",
5721                         argv[0], argv[optind - 1]);
5722         return rc;
5723 }
5724
5725 static int lfs_tgts(int argc, char **argv)
5726 {
5727         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5728         struct find_param param;
5729         int index = 0, rc = 0;
5730
5731         if (argc > 2)
5732                 return CMD_HELP;
5733
5734         if (argc == 2 && !realpath(argv[1], path)) {
5735                 rc = -errno;
5736                 fprintf(stderr, "error: invalid path '%s': %s\n",
5737                         argv[1], strerror(-rc));
5738                 return rc;
5739         }
5740
5741         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
5742                 /* Check if we have a mount point */
5743                 if (mntdir[0] == '\0')
5744                         continue;
5745
5746                 memset(&param, 0, sizeof(param));
5747                 if (!strcmp(argv[0], "mdts"))
5748                         param.fp_get_lmv = 1;
5749
5750                 rc = llapi_ostlist(mntdir, &param);
5751                 if (rc) {
5752                         fprintf(stderr, "error: %s: failed on %s\n",
5753                                 argv[0], mntdir);
5754                 }
5755                 if (path[0] != '\0')
5756                         break;
5757                 memset(mntdir, 0, PATH_MAX);
5758         }
5759
5760         return rc;
5761 }
5762
5763 static int lfs_getstripe(int argc, char **argv)
5764 {
5765         struct find_param param = { 0 };
5766
5767         param.fp_max_depth = 1;
5768         return lfs_getstripe_internal(argc, argv, &param);
5769 }
5770
5771 /* functions */
5772 static int lfs_getdirstripe(int argc, char **argv)
5773 {
5774         struct find_param param = { 0 };
5775         struct option long_opts[] = {
5776         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
5777         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5778         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
5779         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
5780         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5781         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5782         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5783         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
5784         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5785         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5786         { .name = NULL } };
5787         int c, rc;
5788
5789         param.fp_get_lmv = 1;
5790
5791         while ((c = getopt_long(argc, argv,
5792                                 "cDHimO:rtTvy", long_opts, NULL)) != -1) {
5793                 switch (c) {
5794                 case 'c':
5795                 case 'T':
5796                         param.fp_verbose |= VERBOSE_COUNT;
5797                         break;
5798                 case 'D':
5799                         param.fp_get_default_lmv = 1;
5800                         break;
5801                 case 'i':
5802                 case 'm':
5803                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
5804                         break;
5805 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5806                 case 't':
5807                         fprintf(stderr,
5808                                 "warning: '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
5809 #endif
5810                 case 'H':
5811                         param.fp_verbose |= VERBOSE_HASH_TYPE;
5812                         break;
5813                 case 'O':
5814                         if (param.fp_obd_uuid) {
5815                                 fprintf(stderr,
5816                                         "error: %s: only one obduuid allowed",
5817                                         argv[0]);
5818                                 return CMD_HELP;
5819                         }
5820                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
5821                         break;
5822                 case 'r':
5823                         param.fp_recursive = 1;
5824                         break;
5825                 case 'v':
5826                         param.fp_verbose |= VERBOSE_DETAIL;
5827                         break;
5828                 case 'y':
5829                         param.fp_yaml = 1;
5830                         break;
5831                 default:
5832                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5833                                 progname, argv[0], argv[optind - 1]);
5834                         return CMD_HELP;
5835                 }
5836         }
5837
5838         if (optind >= argc)
5839                 return CMD_HELP;
5840
5841         if (param.fp_recursive)
5842                 param.fp_max_depth = -1;
5843
5844         if (!param.fp_verbose)
5845                 param.fp_verbose = VERBOSE_DEFAULT;
5846
5847         do {
5848                 rc = llapi_getstripe(argv[optind], &param);
5849         } while (++optind < argc && !rc);
5850
5851         if (rc)
5852                 fprintf(stderr, "error: %s failed for %s.\n",
5853                         argv[0], argv[optind - 1]);
5854         return rc;
5855 }
5856
5857 enum mntdf_flags {
5858         MNTDF_INODES    = 0x0001,
5859         MNTDF_COOKED    = 0x0002,
5860         MNTDF_LAZY      = 0x0004,
5861         MNTDF_VERBOSE   = 0x0008,
5862         MNTDF_SHOW      = 0x0010,
5863         MNTDF_DECIMAL   = 0x0020,
5864 };
5865
5866 #define COOK(value, base)                                       \
5867 ({                                                              \
5868         int radix = 0;                                          \
5869         while (value > base) {                                  \
5870                 value /= base;                                  \
5871                 radix++;                                        \
5872         }                                                       \
5873         radix;                                                  \
5874 })
5875 #define UUF     "%-20s"
5876 #define CSF     "%11s"
5877 #define CDF     "%11llu"
5878 #define HDF     "%8.1f%c"
5879 #define RSF     "%4s"
5880 #define RDF     "%3d%%"
5881
5882 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
5883 {
5884         double avail, used, ratio = 0;
5885
5886         if (inodes) {
5887                 avail = st->os_ffree;
5888                 used = st->os_files - st->os_ffree;
5889         } else {
5890                 avail = st->os_bavail;
5891                 used = st->os_blocks - st->os_bfree;
5892         }
5893         if (avail + used > 0)
5894                 ratio = used / (used + avail) * 100;
5895
5896         /* Round up to match df(1) usage percentage */
5897         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
5898 }
5899
5900 /*
5901  * This is to identify various problem states for "lfs df" if .osn_err = true,
5902  * so only show flags reflecting those states by default. Informational states
5903  * are only shown with "-v" and use lower-case names to distinguish them.
5904  * UNUSED[12] were for "EROFS = 30" until 1.6 but are now available for use.
5905  */
5906 static struct obd_statfs_state_names {
5907         enum obd_statfs_state   osn_state;
5908         const char              osn_name;
5909         bool                    osn_err;
5910 } oss_names[] = {
5911         { .osn_state = OS_STATFS_DEGRADED,   .osn_name = 'D', .osn_err = true },
5912         { .osn_state = OS_STATFS_READONLY,   .osn_name = 'R', .osn_err = true },
5913         { .osn_state = OS_STATFS_NOPRECREATE,.osn_name = 'N', .osn_err = true },
5914         { .osn_state = OS_STATFS_UNUSED1,    .osn_name = '?', .osn_err = true },
5915         { .osn_state = OS_STATFS_UNUSED2,    .osn_name = '?', .osn_err = true },
5916         { .osn_state = OS_STATFS_ENOSPC,     .osn_name = 'S', .osn_err = true },
5917         { .osn_state = OS_STATFS_ENOINO,     .osn_name = 'I', .osn_err = true },
5918         { .osn_state = OS_STATFS_SUM,        .osn_name = 'a', /* aggregate */ },
5919         { .osn_state = OS_STATFS_NONROT,     .osn_name = 'f', /* flash */     },
5920 };
5921
5922 static int showdf(char *mntdir, struct obd_statfs *stat,
5923                   char *uuid, enum mntdf_flags flags,
5924                   char *type, int index, int rc)
5925 {
5926         long long avail, used, total;
5927         int ratio = 0;
5928         char *suffix = flags & MNTDF_DECIMAL ? "kMGTPEZY" : "KMGTPEZY";
5929         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
5930         char tbuf[3 * sizeof(__u64)];
5931         char ubuf[3 * sizeof(__u64)];
5932         char abuf[3 * sizeof(__u64)];
5933         char rbuf[3 * sizeof(__u64)];
5934
5935         if (!uuid || !stat)
5936                 return -EINVAL;
5937
5938         switch (rc) {
5939         case 0:
5940                 if (flags & MNTDF_INODES) {
5941                         avail = stat->os_ffree;
5942                         used = stat->os_files - stat->os_ffree;
5943                         total = stat->os_files;
5944                 } else {
5945                         int shift = flags & MNTDF_COOKED ? 0 : 10;
5946
5947                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
5948                         used  = ((stat->os_blocks - stat->os_bfree) *
5949                                  stat->os_bsize) >> shift;
5950                         total = (stat->os_blocks * stat->os_bsize) >> shift;
5951                 }
5952
5953                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
5954
5955                 if (flags & MNTDF_COOKED) {
5956                         int base = flags & MNTDF_DECIMAL ? 1000 : 1024;
5957                         double cook_val;
5958                         int i;
5959
5960                         cook_val = (double)total;
5961                         i = COOK(cook_val, base);
5962                         if (i > 0)
5963                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
5964                                          suffix[i - 1]);
5965                         else
5966                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
5967
5968                         cook_val = (double)used;
5969                         i = COOK(cook_val, base);
5970                         if (i > 0)
5971                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
5972                                          suffix[i - 1]);
5973                         else
5974                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
5975
5976                         cook_val = (double)avail;
5977                         i = COOK(cook_val, base);
5978                         if (i > 0)
5979                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
5980                                          suffix[i - 1]);
5981                         else
5982                                 snprintf(abuf, sizeof(abuf), CDF, avail);
5983                 } else {
5984                         snprintf(tbuf, sizeof(tbuf), CDF, total);
5985                         snprintf(ubuf, sizeof(tbuf), CDF, used);
5986                         snprintf(abuf, sizeof(tbuf), CDF, avail);
5987                 }
5988
5989                 sprintf(rbuf, RDF, ratio);
5990                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
5991                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
5992                 if (type)
5993                         printf("[%s:%d]", type, index);
5994
5995                 if (stat->os_state) {
5996                         uint32_t i;
5997
5998                         printf(" ");
5999                         for (i = 0; i < ARRAY_SIZE(oss_names); i++) {
6000                                 if (oss_names[i].osn_state & stat->os_state &&
6001                                     (oss_names[i].osn_err ||
6002                                      flags & MNTDF_VERBOSE))
6003                                         printf("%c", oss_names[i].osn_name);
6004                         }
6005                 }
6006
6007                 printf("\n");
6008                 break;
6009         case -ENODATA:
6010                 printf(UUF": inactive device\n", uuid);
6011                 break;
6012         default:
6013                 printf(UUF": %s\n", uuid, strerror(-rc));
6014                 break;
6015         }
6016
6017         return 0;
6018 }
6019
6020 struct ll_stat_type {
6021         int   st_op;
6022         char *st_name;
6023 };
6024
6025 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
6026
6027 struct ll_statfs_data {
6028         int                     sd_index;
6029         struct obd_statfs       sd_st;
6030 };
6031
6032 struct ll_statfs_buf {
6033         int                     sb_count;
6034         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
6035 };
6036
6037 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
6038                  int ops, struct ll_statfs_buf *lsb)
6039 {
6040         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
6041         struct obd_uuid uuid_buf;
6042         char *poolname = NULL;
6043         struct ll_stat_type types[] = {
6044                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
6045                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
6046                 { .st_name = NULL } };
6047         struct ll_stat_type *tp;
6048         __u64 ost_files = 0;
6049         __u64 ost_ffree = 0;
6050         __u32 index;
6051         __u32 type;
6052         int fd;
6053         int rc = 0;
6054         int rc2;
6055
6056         if (pool) {
6057                 poolname = strchr(pool, '.');
6058                 if (poolname) {
6059                         if (strncmp(fsname, pool, strlen(fsname))) {
6060                                 fprintf(stderr, "filesystem name incorrect\n");
6061                                 return -ENODEV;
6062                         }
6063                         poolname++;
6064                 } else
6065                         poolname = pool;
6066         }
6067
6068         fd = open(mntdir, O_RDONLY);
6069         if (fd < 0) {
6070                 rc = -errno;
6071                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
6072                         strerror(errno));
6073                 return rc;
6074         }
6075
6076         if (flags & MNTDF_SHOW) {
6077                 if (flags & MNTDF_INODES)
6078                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6079                                "UUID", "Inodes", "IUsed", "IFree",
6080                                "IUse%", "Mounted on");
6081                 else
6082                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6083                                "UUID",
6084                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
6085                                "Used", "Available", "Use%", "Mounted on");
6086         }
6087
6088         for (tp = types; tp->st_name != NULL; tp++) {
6089                 bool have_ost = false;
6090
6091                 if (!(tp->st_op & ops))
6092                         continue;
6093
6094                 for (index = 0; ; index++) {
6095                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
6096                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
6097                         type = flags & MNTDF_LAZY ?
6098                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
6099                         rc2 = llapi_obd_fstatfs(fd, type, index,
6100                                                &stat_buf, &uuid_buf);
6101                         if (rc2 == -ENODEV)
6102                                 break;
6103                         if (rc2 == -EAGAIN)
6104                                 continue;
6105                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
6106                                 if (!(flags & MNTDF_VERBOSE))
6107                                         continue;
6108                         } else if (rc2 < 0 && rc == 0) {
6109                                 rc = rc2;
6110                         }
6111
6112                         /*
6113                          * If we have OSTs then don't report MDT block counts.
6114                          * For MDT-only filesystems the expectation is that all
6115                          * layouts have a DoM component.  For filesystems with
6116                          * OSTs, files are not necessarily going to store data
6117                          * on MDTs, and MDT space is limited to a fraction of
6118                          * OST space, so don't include it in the summary.
6119                          */
6120                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
6121                                 have_ost = true;
6122                                 sum.os_blocks = 0;
6123                                 sum.os_bfree = 0;
6124                                 sum.os_bavail = 0;
6125                         }
6126
6127                         if (poolname && tp->st_op == LL_STATFS_LOV &&
6128                             llapi_search_ost(fsname, poolname,
6129                                              obd_uuid2str(&uuid_buf)) != 1)
6130                                 continue;
6131
6132                         /*
6133                          * the llapi_obd_fstatfs() call may have returned with
6134                          * an error, but if it filled in uuid_buf we will at
6135                          * lease use that to print out a message for that OBD.
6136                          * If we didn't get anything in the uuid_buf, then fill
6137                          * it in so that we can print an error message.
6138                          */
6139                         if (uuid_buf.uuid[0] == '\0')
6140                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
6141                                          "%s%04x", tp->st_name, index);
6142                         if (!rc && lsb) {
6143                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
6144                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
6145                                 lsb->sb_count++;
6146                         }
6147                         if (flags & MNTDF_SHOW)
6148                                 showdf(mntdir, &stat_buf,
6149                                        obd_uuid2str(&uuid_buf), flags,
6150                                        tp->st_name, index, rc2);
6151
6152                         if (rc2)
6153                                 continue;
6154
6155                         if (tp->st_op == LL_STATFS_LMV) {
6156                                 sum.os_ffree += stat_buf.os_ffree;
6157                                 sum.os_files += stat_buf.os_files;
6158                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
6159                                 ost_files += stat_buf.os_files;
6160                                 ost_ffree += stat_buf.os_ffree;
6161                         }
6162                         sum.os_blocks += stat_buf.os_blocks *
6163                                          stat_buf.os_bsize;
6164                         sum.os_bfree  += stat_buf.os_bfree *
6165                                          stat_buf.os_bsize;
6166                         sum.os_bavail += stat_buf.os_bavail *
6167                                          stat_buf.os_bsize;
6168                 }
6169         }
6170
6171         close(fd);
6172
6173         /*
6174          * If we have _some_ OSTs, but don't have as many free objects on the
6175          * OST as inodes on the MDTs, reduce the reported number of inodes
6176          * to compensate, so that the "inodes in use" number is correct.
6177          * This should be kept in sync with ll_statfs_internal().
6178          */
6179         if (ost_files && ost_ffree < sum.os_ffree) {
6180                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
6181                 sum.os_ffree = ost_ffree;
6182         }
6183         if (flags & MNTDF_SHOW) {
6184                 printf("\n");
6185                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
6186                 printf("\n");
6187         }
6188
6189         return rc;
6190 }
6191
6192 /* functions */
6193 static int lfs_setdirstripe(int argc, char **argv)
6194 {
6195         char *dname;
6196         struct lfs_setstripe_args lsa = { 0 };
6197         struct llapi_stripe_param *param = NULL;
6198         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
6199         char *end;
6200         int c;
6201         char *mode_opt = NULL;
6202         bool default_stripe = false;
6203         bool delete = false;
6204         bool foreign_mode = false;
6205         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
6206         mode_t previous_mode = 0;
6207         char *xattr = NULL;
6208         __u32 type = LU_FOREIGN_TYPE_SYMLINK, flags = 0;
6209         struct option long_opts[] = {
6210         { .val = 'c',   .name = "count",        .has_arg = required_argument },
6211         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
6212         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
6213         { .val = 'D',   .name = "default",      .has_arg = no_argument },
6214         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
6215         { .val = LFS_LAYOUT_FLAGS_OPT,
6216                         .name = "flags",        .has_arg = required_argument },
6217         { .val = LFS_LAYOUT_FOREIGN_OPT,
6218                         .name = "foreign",      .has_arg = optional_argument},
6219         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
6220 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
6221         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
6222         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
6223 #else
6224 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
6225         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6226         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6227 #endif
6228 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6229         { .val = 'i',   .name = "index",        .has_arg = required_argument },
6230 #endif
6231         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
6232 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6233         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
6234 #endif
6235         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
6236 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
6237         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
6238         { .name = NULL } };
6239         int result = 0;
6240
6241         setstripe_args_init(&lsa);
6242
6243         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:x:",
6244                                 long_opts, NULL)) >= 0) {
6245                 switch (c) {
6246                 case 0:
6247                         /* Long options. */
6248                         break;
6249                 case 'c':
6250                 case 'T':
6251                         errno = 0;
6252                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
6253                         if (errno != 0 || *end != '\0' ||
6254                             lsa.lsa_stripe_count < -1 ||
6255                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
6256                                 fprintf(stderr,
6257                                         "%s %s: invalid stripe count '%s'\n",
6258                                         progname, argv[0], optarg);
6259                                 return CMD_HELP;
6260                         }
6261                         break;
6262                 case 'd':
6263                         delete = true;
6264                         default_stripe = true;
6265                         break;
6266                 case 'D':
6267                         default_stripe = true;
6268                         break;
6269                 case LFS_LAYOUT_FOREIGN_OPT:
6270                         if (optarg) {
6271                                 /* check pure numeric */
6272                                 type = strtoul(optarg, &end, 0);
6273                                 if (*end) {
6274                                         /* check name */
6275                                         type = check_foreign_type_name(optarg);
6276                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
6277                                                 fprintf(stderr,
6278                                                         "%s %s: unknown foreign type '%s'\n",
6279                                                         progname, argv[0],
6280                                                         optarg);
6281                                                 return CMD_HELP;
6282                                         }
6283                                 } else if (type >= UINT32_MAX) {
6284                                         fprintf(stderr,
6285                                                 "%s %s: invalid foreign type '%s'\n",
6286                                                 progname, argv[0], optarg);
6287                                         return CMD_HELP;
6288                                 }
6289                         }
6290                         foreign_mode = true;
6291                         break;
6292                 case LFS_LAYOUT_FLAGS_OPT:
6293                         errno = 0;
6294                         flags = strtoul(optarg, &end, 16);
6295                         if (errno != 0 || *end != '\0' ||
6296                             flags >= UINT32_MAX) {
6297                                 fprintf(stderr,
6298                                         "%s %s: invalid hex flags '%s'\n",
6299                                         progname, argv[0], optarg);
6300                                 return CMD_HELP;
6301                         }
6302                         if (!foreign_mode) {
6303                                 fprintf(stderr,
6304                                         "%s %s: hex flags must be specified with --foreign option\n",
6305                                         progname, argv[0]);
6306                                 return CMD_HELP;
6307                         }
6308                         break;
6309 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6310                 case 't':
6311                         fprintf(stderr,
6312                                 "warning: '--hash-type' and '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6313 #endif
6314                 case 'H':
6315                         lsa.lsa_pattern = check_hashtype(optarg);
6316                         if (lsa.lsa_pattern == 0) {
6317                                 fprintf(stderr,
6318                                         "%s %s: bad stripe hash type '%s'\n",
6319                                         progname, argv[0], optarg);
6320                                 return CMD_HELP;
6321                         }
6322                         break;
6323                 case 'i':
6324 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
6325                 case 'm':
6326 #endif
6327 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6328                         if (strcmp(argv[optind - 1], "--index") == 0)
6329                                 fprintf(stderr,
6330                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
6331                                         progname, argv[0]);
6332 #endif
6333                         lsa.lsa_nr_tgts = parse_targets(mdts,
6334                                                 sizeof(mdts) / sizeof(__u32),
6335                                                 lsa.lsa_nr_tgts, optarg, NULL);
6336                         if (lsa.lsa_nr_tgts < 0) {
6337                                 fprintf(stderr,
6338                                         "%s %s: invalid MDT target(s) '%s'\n",
6339                                         progname, argv[0], optarg);
6340                                 return CMD_HELP;
6341                         }
6342
6343                         lsa.lsa_tgts = mdts;
6344                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6345                                 lsa.lsa_stripe_off = mdts[0];
6346                         break;
6347 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
6348                 case 'm':
6349                         fprintf(stderr,
6350                                 "warning: '-m' is deprecated, use '--mode' or '-o' instead\n");
6351 #endif
6352                 case 'o':
6353                         mode_opt = optarg;
6354                         break;
6355                 case 'x':
6356                         xattr = optarg;
6357                         break;
6358                 default:
6359                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
6360                                 progname, argv[0], argv[optind - 1]);
6361                         return CMD_HELP;
6362                 }
6363         }
6364
6365         if (optind == argc) {
6366                 fprintf(stderr, "%s %s: DIR must be specified\n",
6367                         progname, argv[0]);
6368                 return CMD_HELP;
6369         }
6370
6371         if (xattr && !foreign_mode) {
6372                 /*
6373                  * only print a warning as this is armless and will be
6374                  * ignored
6375                  */
6376                 fprintf(stderr,
6377                         "%s %s: xattr has been specified for non-foreign layout\n",
6378                         progname, argv[0]);
6379         } else if (foreign_mode && !xattr) {
6380                 fprintf(stderr,
6381                         "%s %s: xattr must be provided in foreign mode\n",
6382                         progname, argv[0]);
6383                 return CMD_HELP;
6384         }
6385
6386         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
6387             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
6388                 fprintf(stderr,
6389                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
6390                         progname, argv[0]);
6391                 return CMD_HELP;
6392         }
6393
6394         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
6395             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
6396                 /* if no parameters set, create directory on least-used MDTs */
6397                 lsa.lsa_stripe_off = -1;
6398                 lsa.lsa_stripe_count = 1;
6399         }
6400
6401         if (delete &&
6402             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
6403              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
6404                 fprintf(stderr,
6405                         "%s %s: cannot specify -d with -c or -i options\n",
6406                         progname, argv[0]);
6407                 return CMD_HELP;
6408         }
6409
6410         if (mode_opt) {
6411                 mode = strtoul(mode_opt, &end, 8);
6412                 if (*end != '\0') {
6413                         fprintf(stderr,
6414                                 "%s %s: bad MODE '%s'\n",
6415                                 progname, argv[0], mode_opt);
6416                         return CMD_HELP;
6417                 }
6418                 previous_mode = umask(0);
6419         }
6420
6421         /* foreign LMV/dir case */
6422         if (foreign_mode) {
6423                 if (argc > optind + 1) {
6424                         fprintf(stderr,
6425                                 "%s %s: cannot specify multiple foreign dirs\n",
6426                                 progname, argv[0]);
6427                         return CMD_HELP;
6428                 }
6429
6430                 dname = argv[optind];
6431                 result = llapi_dir_create_foreign(dname, mode, type, flags,
6432                                                   xattr);
6433                 if (result != 0)
6434                         fprintf(stderr,
6435                                 "%s mkdir: can't create foreign dir '%s': %s\n",
6436                                 progname, dname, strerror(-result));
6437                 return result;
6438         }
6439
6440         /*
6441          * initialize stripe parameters, in case param is converted to specific,
6442          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
6443          */
6444         param = calloc(1, offsetof(typeof(*param),
6445                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
6446                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
6447         if (!param) {
6448                 fprintf(stderr,
6449                         "%s %s: cannot allocate memory for parameters: %s\n",
6450                         progname, argv[0], strerror(ENOMEM));
6451                 return CMD_HELP;
6452         }
6453
6454         /* if "lfs setdirstripe -D -i -1" is used, assume 1-stripe directory */
6455         if (default_stripe && lsa.lsa_stripe_off == -1 &&
6456             (lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT ||
6457              lsa.lsa_stripe_count == 0))
6458                 lsa.lsa_stripe_count = 1;
6459         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
6460                 param->lsp_stripe_count = lsa.lsa_stripe_count;
6461         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6462                 param->lsp_stripe_offset = -1;
6463         else
6464                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
6465         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
6466                 param->lsp_stripe_pattern = lsa.lsa_pattern;
6467         else
6468                 param->lsp_stripe_pattern = LMV_HASH_TYPE_UNKNOWN;
6469         param->lsp_pool = lsa.lsa_pool_name;
6470         param->lsp_is_specific = false;
6471         if (lsa.lsa_nr_tgts > 1) {
6472                 if (lsa.lsa_stripe_count > 0 &&
6473                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
6474                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
6475                         fprintf(stderr,
6476                                 "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
6477                                 argv[0], lsa.lsa_stripe_count,
6478                                 lsa.lsa_nr_tgts);
6479                         free(param);
6480                         return CMD_HELP;
6481                 }
6482
6483                 param->lsp_is_specific = true;
6484                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
6485                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
6486         }
6487
6488         dname = argv[optind];
6489         do {
6490                 if (default_stripe) {
6491                         result = llapi_dir_set_default_lmv(dname, param);
6492                         if (result)
6493                                 fprintf(stderr,
6494                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
6495                                         progname, dname, strerror(-result));
6496                         continue;
6497                 }
6498
6499                 result = llapi_dir_create(dname, mode, param);
6500                 if (result)
6501                         fprintf(stderr,
6502                                 "%s setdirstripe: cannot create dir '%s': %s\n",
6503                                 progname, dname, strerror(-result));
6504         } while (!result && (dname = argv[++optind]));
6505
6506         if (mode_opt)
6507                 umask(previous_mode);
6508
6509         free(param);
6510         return result;
6511 }
6512
6513 /* functions */
6514 static int lfs_rmentry(int argc, char **argv)
6515 {
6516         char *dname;
6517         int   index;
6518         int   result = 0;
6519
6520         if (argc <= 1) {
6521                 fprintf(stderr, "error: %s: missing dirname\n",
6522                         argv[0]);
6523                 return CMD_HELP;
6524         }
6525
6526         index = 1;
6527         dname = argv[index];
6528         while (dname) {
6529                 result = llapi_direntry_remove(dname);
6530                 if (result) {
6531                         fprintf(stderr,
6532                                 "error: %s: remove dir entry '%s' failed\n",
6533                                 argv[0], dname);
6534                         break;
6535                 }
6536                 dname = argv[++index];
6537         }
6538         return result;
6539 }
6540
6541 static int lfs_unlink_foreign(int argc, char **argv)
6542 {
6543         char *name;
6544         int   index;
6545         int   result = 0;
6546
6547         if (argc <= 1) {
6548                 fprintf(stderr, "error: %s: missing pathname\n",
6549                         argv[0]);
6550                 return CMD_HELP;
6551         }
6552
6553         index = 1;
6554         name = argv[index];
6555         while (name != NULL) {
6556                 result = llapi_unlink_foreign(name);
6557                 if (result) {
6558                         fprintf(stderr,
6559                                 "error: %s: unlink foreign entry '%s' failed\n",
6560                                 argv[0], name);
6561                         break;
6562                 }
6563                 name = argv[++index];
6564         }
6565         return result;
6566 }
6567
6568 static int lfs_mv(int argc, char **argv)
6569 {
6570         struct lmv_user_md lmu = { LMV_USER_MAGIC };
6571         struct find_param param = {
6572                 .fp_max_depth = -1,
6573                 .fp_mdt_index = -1,
6574         };
6575         char *end;
6576         int c;
6577         int rc = 0;
6578         struct option long_opts[] = {
6579         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6580         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6581         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
6582         { .name = NULL } };
6583
6584         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
6585                 switch (c) {
6586 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6587                 case 'M':
6588                         fprintf(stderr,
6589                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
6590 #endif
6591                 case 'm':
6592                         errno = 0;
6593                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
6594                         if (errno != 0 || *end != '\0' ||
6595                             lmu.lum_stripe_offset >= UINT32_MAX) {
6596                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
6597                                         progname, optarg);
6598                                 return CMD_HELP;
6599                         }
6600                         break;
6601                 case 'v':
6602                         param.fp_verbose = VERBOSE_DETAIL;
6603                         break;
6604                 default:
6605                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
6606                                 progname, argv[optind - 1]);
6607                         return CMD_HELP;
6608                 }
6609         }
6610
6611         if (lmu.lum_stripe_offset == LMV_OFFSET_DEFAULT) {
6612                 fprintf(stderr, "%s mv: MDT index must be specified\n",
6613                         progname);
6614                 return CMD_HELP;
6615         }
6616
6617         if (optind >= argc) {
6618                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
6619                 return CMD_HELP;
6620         }
6621
6622         lmu.lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
6623
6624         /* initialize migrate mdt parameters */
6625         param.fp_lmv_md = &lmu;
6626         param.fp_migrate = 1;
6627         rc = llapi_migrate_mdt(argv[optind], &param);
6628         if (rc != 0)
6629                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
6630                         progname, argv[optind], lmu.lum_stripe_offset,
6631                         strerror(-rc));
6632         return rc;
6633 }
6634
6635 static int lfs_osts(int argc, char **argv)
6636 {
6637         return lfs_tgts(argc, argv);
6638 }
6639
6640 static int lfs_mdts(int argc, char **argv)
6641 {
6642         return lfs_tgts(argc, argv);
6643 }
6644
6645 static int lfs_df(int argc, char **argv)
6646 {
6647         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
6648         enum mntdf_flags flags = MNTDF_SHOW;
6649         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
6650         int c, rc = 0, index = 0;
6651         char fsname[PATH_MAX] = "", *pool_name = NULL;
6652         struct option long_opts[] = {
6653         { .val = 'h',   .name = "human-readable", .has_arg = no_argument },
6654         { .val = 'H',   .name = "si",           .has_arg = no_argument },
6655         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
6656         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
6657         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
6658         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
6659         { .name = NULL} };
6660
6661         while ((c = getopt_long(argc, argv, "hHilp:v", long_opts, NULL)) != -1) {
6662                 switch (c) {
6663                 case 'h':
6664                         flags = (flags & ~MNTDF_DECIMAL) | MNTDF_COOKED;
6665                         break;
6666                 case 'H':
6667                         flags |= MNTDF_COOKED | MNTDF_DECIMAL;
6668                         break;
6669                 case 'i':
6670                         flags |= MNTDF_INODES;
6671                         break;
6672                 case 'l':
6673                         flags |= MNTDF_LAZY;
6674                         break;
6675                 case 'p':
6676                         pool_name = optarg;
6677                         break;
6678                 case 'v':
6679                         flags |= MNTDF_VERBOSE;
6680                         break;
6681                 default:
6682                         return CMD_HELP;
6683                 }
6684         }
6685         if (optind < argc && !realpath(argv[optind], path)) {
6686                 rc = -errno;
6687                 fprintf(stderr, "error: invalid path '%s': %s\n",
6688                         argv[optind], strerror(-rc));
6689                 return rc;
6690         }
6691
6692         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
6693                 /* Check if we have a mount point */
6694                 if (mntdir[0] == '\0')
6695                         continue;
6696
6697                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
6698                 if (rc || path[0] != '\0')
6699                         break;
6700                 fsname[0] = '\0'; /* avoid matching in next loop */
6701                 mntdir[0] = '\0'; /* avoid matching in next loop */
6702         }
6703
6704         return rc;
6705 }
6706
6707 static int print_instance(const char *mntdir, char *buf, size_t buflen,
6708                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
6709 {
6710         int rc = 0;
6711
6712         if (opt_fsname == opt_instance) { /* both true or both false */
6713                 rc = llapi_getname(mntdir, buf, buflen);
6714         } else if (opt_fsname) {
6715                 /*
6716                  * llapi_search_mounts() fills @buf with fsname, but that is not
6717                  * called if explicit paths are specified on the command-line
6718                  */
6719                 if (buf[0] == '\0')
6720                         rc = llapi_get_fsname(mntdir, buf, buflen);
6721         } else /* if (opt_instance) */ {
6722                 rc = llapi_get_instance(mntdir, buf, buflen);
6723         }
6724
6725         if (rc < 0) {
6726                 fprintf(stderr, "cannot get instance for '%s': %s\n",
6727                         mntdir, strerror(-rc));
6728                 return rc;
6729         }
6730
6731         if (opt_mntdir)
6732                 printf("%s %s\n", buf, mntdir);
6733         else
6734                 printf("%s\n", buf);
6735
6736         return 0;
6737 }
6738
6739 static int lfs_getname(int argc, char **argv)
6740 {
6741         struct option long_opts[] = {
6742         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6743         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
6744         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
6745         { .name = NULL} };
6746         bool opt_instance = false, opt_fsname = false;
6747         char fsname[PATH_MAX] = "";
6748         int rc = 0, rc2, c;
6749
6750         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
6751                 switch (c) {
6752                 case 'i':
6753                         opt_instance = true;
6754                         break;
6755                 case 'n':
6756                         opt_fsname = true;
6757                         break;
6758                 case 'h':
6759                 default:
6760                         return CMD_HELP;
6761                 }
6762         }
6763
6764         if (optind == argc) { /* no paths specified, get all paths. */
6765                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
6766                 int index = 0;
6767
6768                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
6769                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
6770                                              opt_instance, opt_fsname, true);
6771                         if (!rc)
6772                                 rc = rc2;
6773                         path[0] = fsname[0] = mntdir[0] = '\0';
6774                 }
6775         } else { /* paths specified, only attempt to search these. */
6776                 bool opt_mntdir;
6777
6778                 /* if only one path is given, print only requested info */
6779                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
6780
6781                 for (; optind < argc; optind++) {
6782                         rc2 = print_instance(argv[optind], fsname,
6783                                              sizeof(fsname), opt_instance,
6784                                              opt_fsname, opt_mntdir);
6785                         if (!rc)
6786                                 rc = rc2;
6787                         fsname[0] = '\0';
6788                 }
6789         }
6790
6791         return rc;
6792 }
6793
6794 static int lfs_check(int argc, char **argv)
6795 {
6796         char mntdir[PATH_MAX] = {'\0'};
6797         int num_types = 1;
6798         char *obd_types[3];
6799         char obd_type1[4];
6800         char obd_type2[4];
6801         char obd_type3[4];
6802         int rc;
6803
6804         if (argc != 2) {
6805                 fprintf(stderr, "%s check: server type must be specified\n",
6806                         progname);
6807                 return CMD_HELP;
6808         }
6809
6810         obd_types[0] = obd_type1;
6811         obd_types[1] = obd_type2;
6812         obd_types[2] = obd_type3;
6813
6814         if (strcmp(argv[1], "osts") == 0) {
6815                 strcpy(obd_types[0], "osc");
6816         } else if (strcmp(argv[1], "mdts") == 0 ||
6817                    strcmp(argv[1], "mds") == 0) {
6818                 strcpy(obd_types[0], "mdc");
6819         } else if (strcmp(argv[1], "mgts") == 0) {
6820                 strcpy(obd_types[0], "mgc");
6821         } else if (strcmp(argv[1], "all") == 0 ||
6822                    strcmp(argv[1], "servers") == 0) {
6823                 num_types = 3;
6824                 strcpy(obd_types[0], "osc");
6825                 strcpy(obd_types[1], "mdc");
6826                 strcpy(obd_types[2], "mgc");
6827         } else {
6828                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
6829                         progname, argv[1]);
6830                 return CMD_HELP;
6831         }
6832
6833         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
6834         if (rc < 0 || mntdir[0] == '\0') {
6835                 fprintf(stderr,
6836                         "%s check: cannot find mounted Lustre filesystem: %s\n",
6837                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
6838                 return rc;
6839         }
6840
6841         rc = llapi_target_check(num_types, obd_types, mntdir);
6842         if (rc)
6843                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
6844                         progname, argv[1], strerror(-rc));
6845
6846         return rc;
6847 }
6848
6849 #ifdef HAVE_SYS_QUOTA_H
6850 #define ADD_OVERFLOW(a, b) \
6851                      ((((a) + (b)) < (a)) ? \
6852                       ((a) = ULONG_MAX) : ((a) = (a) + (b)))
6853
6854 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
6855  * returns the value or ULONG_MAX on integer overflow or incorrect format
6856  * Notes:
6857  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
6858  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
6859  *        3. empty integer value is interpreted as 0
6860  */
6861 static unsigned long str2sec(const char *timestr)
6862 {
6863         const char spec[] = "smhdw";
6864         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
6865         unsigned long val = 0;
6866         char *tail;
6867
6868         if (strpbrk(timestr, spec) == NULL) {
6869                 /*
6870                  * no specifiers inside the time string,
6871                  * should treat it as an integer value
6872                  */
6873                 val = strtoul(timestr, &tail, 10);
6874                 return *tail ? ULONG_MAX : val;
6875         }
6876
6877         /* format string is XXwXXdXXhXXmXXs */
6878         while (*timestr) {
6879                 unsigned long v;
6880                 int ind;
6881                 char *ptr;
6882
6883                 v = strtoul(timestr, &tail, 10);
6884                 if (v == ULONG_MAX || *tail == '\0')
6885                         /*
6886                          * value too large (ULONG_MAX or more)
6887                          * or missing specifier
6888                          */
6889                         goto error;
6890
6891                 ptr = strchr(spec, *tail);
6892                 if (!ptr)
6893                         /* unknown specifier */
6894                         goto error;
6895
6896                 ind = ptr - spec;
6897
6898                 /* check if product will overflow the type */
6899                 if (!(v < ULONG_MAX / mult[ind]))
6900                         goto error;
6901
6902                 ADD_OVERFLOW(val, mult[ind] * v);
6903                 if (val == ULONG_MAX)
6904                         goto error;
6905
6906                 timestr = tail + 1;
6907         }
6908
6909         return val;
6910
6911 error:
6912         return ULONG_MAX;
6913 }
6914
6915 #define ARG2ULL(nr, str, def_units)                                     \
6916 do {                                                                    \
6917         unsigned long long limit, units = def_units;                    \
6918         int rc;                                                         \
6919                                                                         \
6920         rc = llapi_parse_size(str, &limit, &units, 1);                  \
6921         if (rc < 0) {                                                   \
6922                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
6923                         progname, str);                                 \
6924                 return CMD_HELP;                                        \
6925         }                                                               \
6926         nr = limit;                                                     \
6927 } while (0)
6928
6929 static inline int has_times_option(int argc, char **argv)
6930 {
6931         int i;
6932
6933         for (i = 1; i < argc; i++)
6934                 if (!strcmp(argv[i], "-t"))
6935                         return 1;
6936
6937         return 0;
6938 }
6939
6940 static inline int lfs_verify_poolarg(char *pool)
6941 {
6942         if (strnlen(optarg, LOV_MAXPOOLNAME + 1) > LOV_MAXPOOLNAME) {
6943                 fprintf(stderr,
6944                         "Pool name '%.*s' is longer than %d\n",
6945                         LOV_MAXPOOLNAME, pool, LOV_MAXPOOLNAME);
6946                 return 1;
6947         }
6948         return 0;
6949 }
6950
6951 int lfs_setquota_times(int argc, char **argv, struct if_quotactl *qctl)
6952 {
6953         int c, rc;
6954         char *mnt, *obd_type = (char *)qctl->obd_type;
6955         struct obd_dqblk *dqb = &qctl->qc_dqblk;
6956         struct obd_dqinfo *dqi = &qctl->qc_dqinfo;
6957         struct option long_opts[] = {
6958         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
6959         { .val = 'g',   .name = "group",        .has_arg = no_argument },
6960         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
6961         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
6962         { .val = 't',   .name = "times",        .has_arg = no_argument },
6963         { .val = 'u',   .name = "user",         .has_arg = no_argument },
6964         { .val = LFS_POOL_OPT,
6965                         .name = "pool",         .has_arg = required_argument },
6966         { .name = NULL } };
6967         int qtype;
6968
6969         qctl->qc_cmd  = LUSTRE_Q_SETINFO;
6970         qctl->qc_type = ALLQUOTA;
6971
6972         while ((c = getopt_long(argc, argv, "b:gi:ptu",
6973                                 long_opts, NULL)) != -1) {
6974                 switch (c) {
6975                 case 'u':
6976                         qtype = USRQUOTA;
6977                         goto quota_type;
6978                 case 'g':
6979                         qtype = GRPQUOTA;
6980                         goto quota_type;
6981                 case 'p':
6982                         qtype = PRJQUOTA;
6983 quota_type:
6984                         if (qctl->qc_type != ALLQUOTA) {
6985                                 fprintf(stderr,
6986                                         "error: -u/g/p can't be used more than once\n");
6987                                 return CMD_HELP;
6988                         }
6989                         qctl->qc_type = qtype;
6990                         break;
6991                 case 'b':
6992                         if (strncmp(optarg, NOTIFY_GRACE,
6993                                     strlen(NOTIFY_GRACE)) == 0) {
6994                                 dqi->dqi_bgrace = NOTIFY_GRACE_TIME;
6995                         } else {
6996                                 dqi->dqi_bgrace = str2sec(optarg);
6997                                 if (dqi->dqi_bgrace >= NOTIFY_GRACE_TIME) {
6998                                         fprintf(stderr,
6999                                                 "error: bad block-grace: %s\n",
7000                                                 optarg);
7001                                         return CMD_HELP;
7002                                 }
7003                         }
7004                         dqb->dqb_valid |= QIF_BTIME;
7005                         break;
7006                 case 'i':
7007                         if (strncmp(optarg, NOTIFY_GRACE,
7008                                     strlen(NOTIFY_GRACE)) == 0) {
7009                                 dqi->dqi_igrace = NOTIFY_GRACE_TIME;
7010                         } else {
7011                                 dqi->dqi_igrace = str2sec(optarg);
7012                                 if (dqi->dqi_igrace >= NOTIFY_GRACE_TIME) {
7013                                         fprintf(stderr,
7014                                                 "error: bad inode-grace: %s\n",
7015                                                 optarg);
7016                                         return CMD_HELP;
7017                                 }
7018                         }
7019                         dqb->dqb_valid |= QIF_ITIME;
7020                         break;
7021                 case 't': /* Yes, of course! */
7022                         break;
7023                 case LFS_POOL_OPT:
7024                         if (lfs_verify_poolarg(optarg))
7025                                 return -1;
7026                         fprintf(stdout,
7027                                 "Trying to set grace for pool %s\n", optarg);
7028                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7029                         qctl->qc_cmd  = LUSTRE_Q_SETINFOPOOL;
7030                         break;
7031                 /* getopt prints error message for us when opterr != 0 */
7032                 default:
7033                         return CMD_HELP;
7034                 }
7035         }
7036
7037         if (qctl->qc_type == ALLQUOTA) {
7038                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
7039                 return CMD_HELP;
7040         }
7041
7042         if (optind != argc - 1) {
7043                 fprintf(stderr, "error: unexpected parameters encountered\n");
7044                 return CMD_HELP;
7045         }
7046
7047         mnt = argv[optind];
7048         rc = llapi_quotactl(mnt, qctl);
7049         if (rc) {
7050                 if (*obd_type)
7051                         fprintf(stderr, "%s %s ", obd_type,
7052                                 obd_uuid2str(&qctl->obd_uuid));
7053                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
7054                 return rc;
7055         }
7056
7057         return 0;
7058 }
7059
7060 #define BSLIMIT (1 << 0)
7061 #define BHLIMIT (1 << 1)
7062 #define ISLIMIT (1 << 2)
7063 #define IHLIMIT (1 << 3)
7064
7065 int lfs_setquota(int argc, char **argv)
7066 {
7067         int c, rc = 0;
7068         struct if_quotactl *qctl;
7069         char *mnt, *obd_type;
7070         struct obd_dqblk *dqb;
7071         struct option long_opts[] = {
7072         { .val = 'b',   .name = "block-softlimit",
7073                                                 .has_arg = required_argument },
7074         { .val = 'B',   .name = "block-hardlimit",
7075                                                 .has_arg = required_argument },
7076         { .val = 'd',   .name = "default",      .has_arg = no_argument },
7077         { .val = 'g',   .name = "group",        .has_arg = required_argument },
7078         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
7079         { .val = 'i',   .name = "inode-softlimit",
7080                                                 .has_arg = required_argument },
7081         { .val = 'I',   .name = "inode-hardlimit",
7082                                                 .has_arg = required_argument },
7083         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
7084         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
7085         { .val = 'u',   .name = "user",         .has_arg = required_argument },
7086         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
7087         { .val = LFS_POOL_OPT,
7088                         .name = "pool",         .has_arg = required_argument },
7089         { .name = NULL } };
7090         unsigned int limit_mask = 0;
7091         bool use_default = false;
7092         int qtype, qctl_len;
7093
7094         qctl_len = sizeof(*qctl) + LOV_MAXPOOLNAME + 1;
7095         qctl = malloc(qctl_len);
7096         if (!qctl)
7097                 return -ENOMEM;
7098
7099         memset(qctl, 0, qctl_len);
7100         obd_type = (char *)qctl->obd_type;
7101         dqb = &qctl->qc_dqblk;
7102
7103         if (has_times_option(argc, argv)) {
7104                 rc = lfs_setquota_times(argc, argv, qctl);
7105                 goto out;
7106         }
7107
7108         qctl->qc_cmd  = LUSTRE_Q_SETQUOTA;
7109         qctl->qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
7110                                    * so it can be used as a marker that qc_type
7111                                    * isn't reinitialized from command line
7112                                    */
7113
7114         while ((c = getopt_long(argc, argv, "b:B:dg:Gi:I:p:Pu:U",
7115                 long_opts, NULL)) != -1) {
7116                 switch (c) {
7117                 case 'U':
7118                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7119                         qtype = USRQUOTA;
7120                         qctl->qc_id = 0;
7121                         goto quota_type_def;
7122                 case 'u':
7123                         qtype = USRQUOTA;
7124                         rc = name2uid(&qctl->qc_id, optarg);
7125                         goto quota_type;
7126                 case 'G':
7127                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7128                         qtype = GRPQUOTA;
7129                         qctl->qc_id = 0;
7130                         goto quota_type_def;
7131                 case 'g':
7132                         qtype = GRPQUOTA;
7133                         rc = name2gid(&qctl->qc_id, optarg);
7134                         goto quota_type;
7135                 case 'P':
7136                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7137                         qtype = PRJQUOTA;
7138                         qctl->qc_id = 0;
7139                         goto quota_type_def;
7140                 case 'p':
7141                         qtype = PRJQUOTA;
7142                         rc = name2projid(&qctl->qc_id, optarg);
7143 quota_type:
7144                         if (rc) {
7145                                 if (str2quotaid(&qctl->qc_id, optarg)) {
7146                                         fprintf(stderr,
7147                                                 "%s setquota: invalid id '%s'\n",
7148                                                 progname, optarg);
7149                                         rc = -1;
7150                                         goto out;
7151                                 }
7152                         }
7153
7154                         if (qctl->qc_id == 0) {
7155                                 fprintf(stderr,
7156                                         "%s setquota: can't set quota for root usr/group/project.\n",
7157                                         progname);
7158                                 rc = -1;
7159                                 goto out;
7160                         }
7161
7162 quota_type_def:
7163                         if (qctl->qc_type != ALLQUOTA) {
7164                                 fprintf(stderr,
7165                                         "%s setquota: only one of -u, -U, -g, -G, -p or -P may be specified\n",
7166                                         progname);
7167                                 rc = CMD_HELP;
7168                                 goto out;
7169                         }
7170                         qctl->qc_type = qtype;
7171                         break;
7172                 case 'd':
7173                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7174                         use_default = true;
7175                         break;
7176                 case 'b':
7177                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
7178                         dqb->dqb_bsoftlimit >>= 10;
7179                         limit_mask |= BSLIMIT;
7180                         if (dqb->dqb_bsoftlimit &&
7181                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
7182                                 fprintf(stderr,
7183                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7184                                         progname,
7185                                         (unsigned long long)dqb->dqb_bsoftlimit,
7186                                         progname);
7187                         break;
7188                 case 'B':
7189                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
7190                         dqb->dqb_bhardlimit >>= 10;
7191                         limit_mask |= BHLIMIT;
7192                         if (dqb->dqb_bhardlimit &&
7193                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
7194                                 fprintf(stderr,
7195                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
7196                                         "See '%s help setquota' or Lustre manual for details\n",
7197                                         progname,
7198                                         (unsigned long long)dqb->dqb_bhardlimit,
7199                                         progname);
7200                         break;
7201                 case 'i':
7202                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
7203                         limit_mask |= ISLIMIT;
7204                         if (dqb->dqb_isoftlimit &&
7205                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
7206                                 fprintf(stderr,
7207                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7208                                         progname,
7209                                         (unsigned long long)dqb->dqb_isoftlimit,
7210                                         progname);
7211                         break;
7212                 case 'I':
7213                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
7214                         limit_mask |= IHLIMIT;
7215                         if (dqb->dqb_ihardlimit &&
7216                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
7217                                 fprintf(stderr,
7218                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7219                                         progname,
7220                                         (unsigned long long)dqb->dqb_ihardlimit,
7221                                         progname);
7222                         break;
7223                 case LFS_POOL_OPT:
7224                         if (lfs_verify_poolarg(optarg)) {
7225                                 rc = -1;
7226                                 goto out;
7227                         }
7228                         fprintf(stdout,
7229                                 "Trying to set quota for pool %s\n", optarg);
7230                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7231                         qctl->qc_cmd  = LUSTRE_Q_SETQUOTAPOOL;
7232                         break;
7233                 default:
7234                         fprintf(stderr,
7235                                 "%s setquota: unrecognized option '%s'\n",
7236                                 progname, argv[optind - 1]);
7237                         rc = CMD_HELP;
7238                         goto out;
7239                 }
7240         }
7241
7242         if (qctl->qc_type == ALLQUOTA) {
7243                 fprintf(stderr,
7244                         "%s setquota: either -u or -g must be specified\n",
7245                         progname);
7246                 rc = CMD_HELP;
7247                 goto out;
7248         }
7249
7250         if (!use_default && limit_mask == 0) {
7251                 fprintf(stderr,
7252                         "%s setquota: at least one limit must be specified\n",
7253                         progname);
7254                 rc = CMD_HELP;
7255                 goto out;
7256         }
7257
7258         if (use_default && limit_mask != 0) {
7259                 fprintf(stderr,
7260                         "%s setquota: limits should not be specified when using default quota\n",
7261                         progname);
7262                 rc = CMD_HELP;
7263                 goto out;
7264         }
7265
7266         if (use_default && qctl->qc_id == 0) {
7267                 fprintf(stderr,
7268                         "%s setquota: can not set default quota for root user/group/project\n",
7269                         progname);
7270                 rc = CMD_HELP;
7271                 goto out;
7272         }
7273
7274         if (optind != argc - 1) {
7275                 fprintf(stderr,
7276                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
7277                         progname, argv[optind]);
7278                 rc = CMD_HELP;
7279                 goto out;
7280         }
7281
7282         mnt = argv[optind];
7283
7284         if (use_default) {
7285                 dqb->dqb_bhardlimit = 0;
7286                 dqb->dqb_bsoftlimit = 0;
7287                 dqb->dqb_ihardlimit = 0;
7288                 dqb->dqb_isoftlimit = 0;
7289                 dqb->dqb_itime = 0;
7290                 dqb->dqb_btime = 0;
7291                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
7292         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
7293                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
7294                 /* sigh, we can't just set blimits/ilimits */
7295                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
7296                                                .qc_type = qctl->qc_type,
7297                                                .qc_id   = qctl->qc_id};
7298
7299                 rc = llapi_quotactl(mnt, &tmp_qctl);
7300                 if (rc < 0)
7301                         goto out;
7302
7303                 if (!(limit_mask & BHLIMIT))
7304                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
7305                 if (!(limit_mask & BSLIMIT))
7306                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
7307                 if (!(limit_mask & IHLIMIT))
7308                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
7309                 if (!(limit_mask & ISLIMIT))
7310                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
7311
7312                 /* Keep grace times if we have got no softlimit arguments */
7313                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
7314                         dqb->dqb_valid |= QIF_BTIME;
7315                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
7316                 }
7317
7318                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
7319                         dqb->dqb_valid |= QIF_ITIME;
7320                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
7321                 }
7322         }
7323
7324         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
7325         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
7326
7327         rc = llapi_quotactl(mnt, qctl);
7328         if (rc) {
7329                 if (*obd_type)
7330                         fprintf(stderr,
7331                                 "%s setquota: cannot quotactl '%s' '%s': %s",
7332                                 progname, obd_type,
7333                                 obd_uuid2str(&qctl->obd_uuid), strerror(-rc));
7334         }
7335 out:
7336         free(qctl);
7337         return rc;
7338 }
7339
7340 /* Converts seconds value into format string
7341  * result is returned in buf
7342  * Notes:
7343  *        1. result is in descenting order: 1w2d3h4m5s
7344  *        2. zero fields are not filled (except for p. 3): 5d1s
7345  *        3. zero seconds value is presented as "0s"
7346  */
7347 static char *__sec2str(time_t seconds, char *buf)
7348 {
7349         const char spec[] = "smhdw";
7350         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7351         unsigned long c;
7352         char *tail = buf;
7353         int i;
7354
7355         for (i = ARRAY_SIZE(mult) - 1 ; i >= 0; i--) {
7356                 c = seconds / mult[i];
7357
7358                 if (c > 0 || (i == 0 && buf == tail))
7359                         tail += scnprintf(tail, 40-(tail-buf), "%lu%c", c,
7360                                           spec[i]);
7361
7362                 seconds %= mult[i];
7363         }
7364
7365         return tail;
7366 }
7367
7368 static void sec2str(time_t seconds, char *buf, int rc)
7369 {
7370         char *tail = buf;
7371
7372         if (rc)
7373                 *tail++ = '[';
7374
7375         tail = __sec2str(seconds, tail);
7376
7377         if (rc && tail - buf < 39) {
7378                 *tail++ = ']';
7379                 *tail++ = 0;
7380         }
7381 }
7382
7383 static void diff2str(time_t seconds, char *buf, time_t now)
7384 {
7385         buf[0] = 0;
7386         if (!seconds)
7387                 return;
7388         if (seconds <= now) {
7389                 strcpy(buf, "none");
7390                 return;
7391         }
7392         __sec2str(seconds - now, buf);
7393 }
7394
7395 static void print_quota_title(char *name, struct if_quotactl *qctl,
7396                               bool human_readable, bool show_default)
7397 {
7398         if (show_default) {
7399                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
7400                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
7401                        "Filesystem", "bquota", "blimit", "bgrace",
7402                        "iquota", "ilimit", "igrace");
7403         } else {
7404                 printf("Disk quotas for %s %s (%cid %u):\n",
7405                        qtype_name(qctl->qc_type), name,
7406                        *qtype_name(qctl->qc_type), qctl->qc_id);
7407                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
7408                        "Filesystem", human_readable ? "used" : "kbytes",
7409                        "quota", "limit", "grace",
7410                        "files", "quota", "limit", "grace");
7411         }
7412 }
7413
7414 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
7415 {
7416         if (!h) {
7417                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
7418         } else {
7419                 if (num >> 40)
7420                         snprintf(buf, buflen, "%5.4gP",
7421                                  (double)num / ((__u64)1 << 40));
7422                 else if (num >> 30)
7423                         snprintf(buf, buflen, "%5.4gT",
7424                                  (double)num / (1 << 30));
7425                 else if (num >> 20)
7426                         snprintf(buf, buflen, "%5.4gG",
7427                                  (double)num / (1 << 20));
7428                 else if (num >> 10)
7429                         snprintf(buf, buflen, "%5.4gM",
7430                                  (double)num / (1 << 10));
7431                 else
7432                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
7433         }
7434 }
7435
7436 #define STRBUF_LEN      32
7437 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
7438                         int rc, bool h, bool show_default)
7439 {
7440         time_t now;
7441
7442         time(&now);
7443
7444         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
7445             qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
7446             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) {
7447                 int bover = 0, iover = 0;
7448                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
7449                 char numbuf[3][STRBUF_LEN];
7450                 char timebuf[40];
7451                 char strbuf[STRBUF_LEN];
7452
7453                 if (dqb->dqb_bhardlimit &&
7454                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
7455                         bover = 1;
7456                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
7457                         if (dqb->dqb_btime > now)
7458                                 bover = 2;
7459                         else
7460                                 bover = 3;
7461                 }
7462
7463                 if (dqb->dqb_ihardlimit &&
7464                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
7465                         iover = 1;
7466                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
7467                         if (dqb->dqb_itime > now)
7468                                 iover = 2;
7469                         else
7470                                 iover = 3;
7471                 }
7472
7473                 if (strlen(mnt) > 15)
7474                         printf("%s\n%15s", mnt, "");
7475                 else
7476                         printf("%15s", mnt);
7477
7478                 if (bover)
7479                         diff2str(dqb->dqb_btime, timebuf, now);
7480                 else if (show_default)
7481                         snprintf(timebuf, sizeof(timebuf), "%llu",
7482                                  (unsigned long long)dqb->dqb_btime);
7483
7484                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
7485                            strbuf, sizeof(strbuf), h);
7486                 if (rc == -EREMOTEIO)
7487                         sprintf(numbuf[0], "%s*", strbuf);
7488                 else
7489                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
7490                                 "%s" : "[%s]", strbuf);
7491
7492                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
7493                 if (type == QC_GENERAL)
7494                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
7495                                 "%s" : "[%s]", strbuf);
7496                 else
7497                         sprintf(numbuf[1], "%s", "-");
7498
7499                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
7500                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
7501                         "%s" : "[%s]", strbuf);
7502
7503                 if (show_default)
7504                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
7505                 else
7506                         printf(" %7s%c %6s %7s %7s",
7507                                numbuf[0], bover ? '*' : ' ', numbuf[1],
7508                                numbuf[2], bover > 1 ? timebuf : "-");
7509
7510                 if (iover)
7511                         diff2str(dqb->dqb_itime, timebuf, now);
7512                 else if (show_default)
7513                         snprintf(timebuf, sizeof(timebuf), "%llu",
7514                                  (unsigned long long)dqb->dqb_itime);
7515
7516                 snprintf(numbuf[0], sizeof(numbuf),
7517                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
7518                          (uintmax_t)dqb->dqb_curinodes);
7519
7520                 if (type == QC_GENERAL)
7521                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
7522                                 "%ju" : "[%ju]",
7523                                 (uintmax_t)dqb->dqb_isoftlimit);
7524                 else
7525                         sprintf(numbuf[1], "%s", "-");
7526
7527                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
7528                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
7529
7530                 if (show_default)
7531                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
7532                 else if (type != QC_OSTIDX)
7533                         printf(" %7s%c %6s %7s %7s",
7534                                numbuf[0], iover ? '*' : ' ', numbuf[1],
7535                                numbuf[2], iover > 1 ? timebuf : "-");
7536                 else
7537                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
7538                 printf("\n");
7539         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO || LUSTRE_Q_GETINFOPOOL ||
7540                    qctl->qc_cmd == Q_GETOINFO) {
7541                 char bgtimebuf[40];
7542                 char igtimebuf[40];
7543
7544                 if (qctl->qc_dqinfo.dqi_bgrace == NOTIFY_GRACE_TIME)
7545                         strncpy(bgtimebuf, NOTIFY_GRACE, 40);
7546                 else
7547                         sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
7548                 if (qctl->qc_dqinfo.dqi_igrace == NOTIFY_GRACE_TIME)
7549                         strncpy(igtimebuf, NOTIFY_GRACE, 40);
7550                 else
7551                         sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
7552
7553                 printf("Block grace time: %s; Inode grace time: %s\n",
7554                        bgtimebuf, igtimebuf);
7555         }
7556 }
7557
7558 static int tgt_name2index(const char *tgtname, unsigned int *idx)
7559 {
7560         char *dash, *endp;
7561
7562         /* format is "lustre-OST0001" */
7563         dash = memchr(tgtname, '-', LUSTRE_MAXFSNAME + 1);
7564         if (!dash) {
7565                 fprintf(stderr, "wrong tgtname format '%s'\n", tgtname);
7566                 return -EINVAL;
7567         }
7568         dash += 4;
7569
7570         *idx = strtoul(dash, &endp, 16);
7571         if (*idx > 0xffff) {
7572                 fprintf(stderr, "wrong index %s\n", tgtname);
7573                 return -ERANGE;
7574         }
7575
7576         return 0;
7577 }
7578
7579 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
7580                            bool h, __u64 *total)
7581 {
7582         int rc = 0, rc1 = 0, count = 0, i = 0;
7583         char **list = NULL, *buffer = NULL;
7584         __u32 valid = qctl->qc_valid;
7585
7586         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL && is_mdt)
7587                 return 0;
7588
7589         /* Is it correct for the case OST0000, OST0002, OST0003 -
7590          * we will ask OST0001 that is absent and won't ask OST0003? */
7591         rc = llapi_get_obd_count(mnt, &count, is_mdt);
7592         if (rc) {
7593                 fprintf(stderr, "can not get %s count: %s\n",
7594                         is_mdt ? "mdt" : "ost", strerror(-rc));
7595                 return rc;
7596         }
7597
7598         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
7599                 char fname[PATH_MAX];
7600                 char fsname[LUSTRE_MAXFSNAME + 1];
7601                 int bufsize = sizeof(struct obd_uuid) * count;
7602
7603                 rc = llapi_search_fsname(mnt, fsname);
7604                 if (rc) {
7605                         fprintf(stderr, "cannot get fsname for mountpoint %s\n",
7606                                 mnt);
7607                         goto out;
7608                 }
7609                 buffer = malloc(bufsize + sizeof(*list) * count);
7610                 if (!buffer)
7611                         return -ENOMEM;
7612                 list = (char **)(buffer + bufsize);
7613                 snprintf(fname, PATH_MAX, "%s.%s", fsname, qctl->qc_poolname);
7614                 count = llapi_get_poolmembers(fname, list, count,
7615                                               buffer, bufsize);
7616                 if (count <= 0)
7617                         goto out;
7618         }
7619
7620         for (i = 0; i < count; i++) {
7621                 if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
7622                         unsigned int index;
7623
7624                         if (tgt_name2index(list[i], &index))
7625                                 continue;
7626                         qctl->qc_idx = index;
7627                 } else {
7628                         qctl->qc_idx = i;
7629                 }
7630
7631                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
7632                 rc = llapi_quotactl(mnt, qctl);
7633                 if (rc) {
7634                         /* It is remote client case. */
7635                         if (rc == -EOPNOTSUPP) {
7636                                 rc = 0;
7637                                 goto out;
7638                         }
7639
7640                         if (!rc1)
7641                                 rc1 = rc;
7642                         fprintf(stderr, "quotactl %s%d failed.\n",
7643                                 is_mdt ? "mdt" : "ost", qctl->qc_idx);
7644                         continue;
7645                 }
7646
7647                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
7648                             qctl->qc_valid, 0, h, false);
7649                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
7650                                    qctl->qc_dqblk.dqb_bhardlimit;
7651         }
7652 out:
7653         if (buffer)
7654                 free(buffer);
7655         qctl->qc_valid = valid;
7656         return rc ? : rc1;
7657 }
7658
7659 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
7660                            int verbose, int quiet, bool human_readable,
7661                            bool show_default)
7662 {
7663         int rc1 = 0, rc2 = 0, rc3 = 0;
7664         char *obd_type = (char *)qctl->obd_type;
7665         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
7666         __u64 total_ialloc = 0, total_balloc = 0;
7667         bool use_default_for_blk = false;
7668         bool use_default_for_file = false;
7669         int inacc;
7670
7671         rc1 = llapi_quotactl(mnt, qctl);
7672         if (rc1 < 0) {
7673                 switch (rc1) {
7674                 case -ESRCH:
7675                         fprintf(stderr, "%s quotas are not enabled.\n",
7676                                 qtype_name(qctl->qc_type));
7677                         goto out;
7678                 case -EPERM:
7679                         fprintf(stderr, "Permission denied.\n");
7680                 case -ENODEV:
7681                 case -ENOENT:
7682                         /* We already got error message. */
7683                         goto out;
7684                 default:
7685                         fprintf(stderr, "Unexpected quotactl error: %s\n",
7686                                 strerror(-rc1));
7687                 }
7688         }
7689
7690         if (!show_default && qctl->qc_id == 0) {
7691                 qctl->qc_dqblk.dqb_bhardlimit = 0;
7692                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
7693                 qctl->qc_dqblk.dqb_ihardlimit = 0;
7694                 qctl->qc_dqblk.dqb_isoftlimit = 0;
7695                 qctl->qc_dqblk.dqb_btime = 0;
7696                 qctl->qc_dqblk.dqb_itime = 0;
7697                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
7698         }
7699
7700         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
7701             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
7702                 use_default_for_blk = true;
7703                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
7704         }
7705
7706         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
7707             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
7708                 use_default_for_file = true;
7709                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
7710         }
7711
7712         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7713              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
7714              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
7715                 print_quota_title(name, qctl, human_readable, show_default);
7716
7717         if (rc1 && *obd_type)
7718                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
7719
7720         if (qctl->qc_valid != QC_GENERAL)
7721                 mnt = "";
7722
7723         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7724                  qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
7725                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
7726                  (QIF_LIMITS|QIF_USAGE));
7727
7728         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
7729
7730         if (!show_default && verbose &&
7731             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
7732             qctl->qc_cmd != LUSTRE_Q_GETINFOPOOL) {
7733                 char strbuf[STRBUF_LEN];
7734
7735                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
7736                                       &total_ialloc);
7737                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
7738                                       &total_balloc);
7739                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
7740                            human_readable);
7741                 printf("Total allocated inode limit: %ju, total allocated block limit: %s\n",
7742                        (uintmax_t)total_ialloc, strbuf);
7743         }
7744
7745         if (use_default_for_blk)
7746                 printf("%cid %u is using default block quota setting\n",
7747                        *qtype_name(qctl->qc_type), qctl->qc_id);
7748
7749         if (use_default_for_file)
7750                 printf("%cid %u is using default file quota setting\n",
7751                        *qtype_name(qctl->qc_type), qctl->qc_id);
7752
7753         if (rc1 || rc2 || rc3 || inacc)
7754                 printf("Some errors happened when getting quota info. Some devices may be not working or deactivated. The data in \"[]\" is inaccurate.\n");
7755 out:
7756         if (rc1)
7757                 return rc1;
7758         if (rc2)
7759                 return rc2;
7760         if (rc3)
7761                 return rc3;
7762         if (inacc)
7763                 return -EIO;
7764
7765         return 0;
7766 }
7767
7768 static int lfs_project(int argc, char **argv)
7769 {
7770         int ret = 0, err = 0, c, i;
7771         struct project_handle_control phc = { 0 };
7772         enum lfs_project_ops_t op;
7773
7774         phc.newline = true;
7775         phc.assign_projid = false;
7776         /* default action */
7777         op = LFS_PROJECT_LIST;
7778
7779         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
7780                 switch (c) {
7781                 case 'c':
7782                         if (op != LFS_PROJECT_LIST) {
7783                                 fprintf(stderr,
7784                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7785                                         progname);
7786                                 return CMD_HELP;
7787                         }
7788
7789                         op = LFS_PROJECT_CHECK;
7790                         break;
7791                 case 'C':
7792                         if (op != LFS_PROJECT_LIST) {
7793                                 fprintf(stderr,
7794                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7795                                         progname);
7796                                 return CMD_HELP;
7797                         }
7798
7799                         op = LFS_PROJECT_CLEAR;
7800                         break;
7801                 case 's':
7802                         if (op != LFS_PROJECT_LIST) {
7803                                 fprintf(stderr,
7804                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7805                                         progname);
7806                                 return CMD_HELP;
7807                         }
7808
7809                         phc.set_inherit = true;
7810                         op = LFS_PROJECT_SET;
7811                         break;
7812                 case 'd':
7813                         phc.dironly = true;
7814                         break;
7815                 case 'k':
7816                         phc.keep_projid = true;
7817                         break;
7818                 case 'r':
7819                         phc.recursive = true;
7820                         break;
7821                 case 'p':
7822                         if (str2quotaid(&phc.projid, optarg)) {
7823                                 fprintf(stderr,
7824                                         "Invalid project ID: %s\n",
7825                                         optarg);
7826                                 return CMD_HELP;
7827                         }
7828
7829                         phc.assign_projid = true;
7830
7831                         break;
7832                 case '0':
7833                         phc.newline = false;
7834                         break;
7835                 default:
7836                         fprintf(stderr, "%s: invalid option '%c'\n",
7837                                 progname, optopt);
7838                         return CMD_HELP;
7839                 }
7840         }
7841
7842         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
7843                 op = LFS_PROJECT_SET;
7844                 phc.set_projid = true;
7845         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
7846                 phc.set_projid = true;
7847         }
7848
7849         switch (op) {
7850         case LFS_PROJECT_CHECK:
7851                 if (phc.keep_projid) {
7852                         fprintf(stderr,
7853                                 "%s: '-k' is useless together with '-c'\n",
7854                                 progname);
7855                         return CMD_HELP;
7856                 }
7857                 break;
7858         case LFS_PROJECT_CLEAR:
7859                 if (!phc.newline) {
7860                         fprintf(stderr,
7861                                 "%s: '-0' is useless together with '-C'\n",
7862                                 progname);
7863                         return CMD_HELP;
7864                 }
7865                 if (phc.assign_projid) {
7866                         fprintf(stderr,
7867                                 "%s: '-p' is useless together with '-C'\n",
7868                                 progname);
7869                         return CMD_HELP;
7870                 }
7871                 break;
7872         case LFS_PROJECT_SET:
7873                 if (!phc.newline) {
7874                         fprintf(stderr,
7875                                 "%s: '-0' is useless together with '-s'\n",
7876                                 progname);
7877                         return CMD_HELP;
7878                 }
7879                 if (phc.keep_projid) {
7880                         fprintf(stderr,
7881                                 "%s: '-k' is useless together with '-s'\n",
7882                                 progname);
7883                         return CMD_HELP;
7884                 }
7885                 break;
7886         default:
7887                 if (!phc.newline) {
7888                         fprintf(stderr,
7889                                 "%s: '-0' is useless for list operations\n",
7890                                 progname);
7891                         return CMD_HELP;
7892                 }
7893                 break;
7894         }
7895
7896         argv += optind;
7897         argc -= optind;
7898         if (argc == 0) {
7899                 fprintf(stderr, "%s: missing file or directory target(s)\n",
7900                         progname);
7901                 return CMD_HELP;
7902         }
7903
7904         for (i = 0; i < argc; i++) {
7905                 switch (op) {
7906                 case LFS_PROJECT_CHECK:
7907                         err = lfs_project_check(argv[i], &phc);
7908                         break;
7909                 case LFS_PROJECT_LIST:
7910                         err = lfs_project_list(argv[i], &phc);
7911                         break;
7912                 case LFS_PROJECT_CLEAR:
7913                         err = lfs_project_clear(argv[i], &phc);
7914                         break;
7915                 case LFS_PROJECT_SET:
7916                         err = lfs_project_set(argv[i], &phc);
7917                         break;
7918                 default:
7919                         break;
7920                 }
7921                 if (err && !ret)
7922                         ret = err;
7923         }
7924
7925         return ret;
7926 }
7927
7928 static int lfs_quota(int argc, char **argv)
7929 {
7930         int c;
7931         char *mnt, *name = NULL;
7932         struct if_quotactl *qctl;
7933         char *obd_uuid;
7934         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
7935         __u32 valid = QC_GENERAL, idx = 0;
7936         bool human_readable = false;
7937         bool show_default = false;
7938         int qtype;
7939         struct option long_opts[] = {
7940         { .val = LFS_POOL_OPT, .name = "pool", .has_arg = required_argument },
7941         { .name = NULL } };
7942
7943         qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
7944         if (!qctl)
7945                 return -ENOMEM;
7946
7947         qctl->qc_cmd = LUSTRE_Q_GETQUOTA;
7948         qctl->qc_type = ALLQUOTA;
7949         obd_uuid = (char *)qctl->obd_uuid.uuid;
7950
7951         while ((c = getopt_long(argc, argv, "gGi:I:o:pPqtuUvh",
7952                 long_opts, NULL)) != -1) {
7953                 switch (c) {
7954                 case 'U':
7955                         show_default = true;
7956                 case 'u':
7957                         qtype = USRQUOTA;
7958                         goto quota_type;
7959                 case 'G':
7960                         show_default = true;
7961                 case 'g':
7962                         qtype = GRPQUOTA;
7963                         goto quota_type;
7964                 case 'P':
7965                         show_default = true;
7966                 case 'p':
7967                         qtype = PRJQUOTA;
7968 quota_type:
7969                         if (qctl->qc_type != ALLQUOTA) {
7970                                 fprintf(stderr,
7971                                         "%s quota: only one of -u, -g, or -p may be specified\n",
7972                                         progname);
7973                                 rc = CMD_HELP;
7974                                 goto out;
7975                         }
7976                         qctl->qc_type = qtype;
7977                         break;
7978                 case 't':
7979                         qctl->qc_cmd = LUSTRE_Q_GETINFO;
7980                         break;
7981                 case 'o':
7982                         valid = qctl->qc_valid = QC_UUID;
7983                         snprintf(obd_uuid, sizeof(*obd_uuid), "%s", optarg);
7984                         break;
7985                 case 'i':
7986                         valid = qctl->qc_valid = QC_MDTIDX;
7987                         idx = qctl->qc_idx = atoi(optarg);
7988                         if (idx == 0 && *optarg != '0') {
7989                                 fprintf(stderr,
7990                                         "%s quota: invalid MDT index '%s'\n",
7991                                         progname, optarg);
7992                                 rc = CMD_HELP;
7993                                 goto out;
7994                         }
7995                         break;
7996                 case 'I':
7997                         valid = qctl->qc_valid = QC_OSTIDX;
7998                         idx = qctl->qc_idx = atoi(optarg);
7999                         if (idx == 0 && *optarg != '0') {
8000                                 fprintf(stderr,
8001                                         "%s quota: invalid OST index '%s'\n",
8002                                         progname, optarg);
8003                                 rc = CMD_HELP;
8004                                 goto out;
8005                         }
8006                         break;
8007                 case 'v':
8008                         verbose = 1;
8009                         break;
8010                 case 'q':
8011                         quiet = 1;
8012                         break;
8013                 case 'h':
8014                         human_readable = true;
8015                         break;
8016                 case LFS_POOL_OPT:
8017                         if (lfs_verify_poolarg(optarg)) {
8018                                 rc = -1;
8019                                 goto out;
8020                         }
8021                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
8022                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_GETINFO ?
8023                                                 LUSTRE_Q_GETINFOPOOL :
8024                                                 LUSTRE_Q_GETQUOTAPOOL;
8025                         break;
8026                 default:
8027                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
8028                                 progname, argv[optind - 1]);
8029                         rc = CMD_HELP;
8030                         goto out;
8031                 }
8032         }
8033
8034         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
8035         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8036              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8037              qctl->qc_type == ALLQUOTA &&
8038              optind == argc - 1 && !show_default) {
8039                 qctl->qc_idx = idx;
8040
8041                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
8042                         qctl->qc_type = qtype;
8043                         qctl->qc_valid = valid;
8044                         if (qtype == USRQUOTA) {
8045                                 qctl->qc_id = geteuid();
8046                                 rc = uid2name(&name, qctl->qc_id);
8047                         } else {
8048                                 qctl->qc_id = getegid();
8049                                 rc = gid2name(&name, qctl->qc_id);
8050                                 memset(&qctl->qc_dqblk, 0,
8051                                        sizeof(qctl->qc_dqblk));
8052                         }
8053                         if (rc)
8054                                 name = "<unknown>";
8055                         mnt = argv[optind];
8056                         rc1 = get_print_quota(mnt, name, qctl, verbose, quiet,
8057                                               human_readable, show_default);
8058                         if (rc1 && !rc)
8059                                 rc = rc1;
8060                 }
8061                 goto out;
8062         /* lfs quota -u username /path/to/lustre/mount */
8063         } else if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8064                    qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8065                 /* options should be followed by u/g-name and mntpoint */
8066                 if ((!show_default && optind + 2 != argc) ||
8067                     (show_default && optind + 1 != argc) ||
8068                     qctl->qc_type == ALLQUOTA) {
8069                         fprintf(stderr,
8070                                 "%s quota: name and mount point must be specified\n",
8071                                 progname);
8072                         rc = CMD_HELP;
8073                         goto out;
8074                 }
8075
8076                 if (!show_default) {
8077                         name = argv[optind++];
8078                         switch (qctl->qc_type) {
8079                         case USRQUOTA:
8080                                 rc = name2uid(&qctl->qc_id, name);
8081                                 break;
8082                         case GRPQUOTA:
8083                                 rc = name2gid(&qctl->qc_id, name);
8084                                 break;
8085                         case PRJQUOTA:
8086                                 rc = name2projid(&qctl->qc_id, name);
8087                                 break;
8088                         default:
8089                                 rc = -ENOTSUP;
8090                                 break;
8091                         }
8092                 } else {
8093                         qctl->qc_valid = QC_GENERAL;
8094                         qctl->qc_cmd = LUSTRE_Q_GETDEFAULT;
8095                         qctl->qc_id = 0;
8096                 }
8097
8098                 if (rc) {
8099                         if (str2quotaid(&qctl->qc_id, name)) {
8100                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
8101                                         progname, name);
8102                                 rc = CMD_HELP;
8103                                 goto out;
8104                         }
8105                 }
8106         } else if (optind + 1 != argc || qctl->qc_type == ALLQUOTA) {
8107                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
8108                         progname);
8109                 rc = CMD_HELP;
8110                 goto out;
8111         }
8112
8113         mnt = argv[optind];
8114         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8115                              human_readable, show_default);
8116 out:
8117         free(qctl);
8118         return rc;
8119 }
8120 #endif /* HAVE_SYS_QUOTA_H! */
8121
8122 static int flushctx_ioctl(char *mp)
8123 {
8124         int fd, rc;
8125
8126         fd = open(mp, O_RDONLY);
8127         if (fd == -1) {
8128                 fprintf(stderr, "flushctx: error open %s: %s\n",
8129                         mp, strerror(errno));
8130                 return -1;
8131         }
8132
8133         rc = ioctl(fd, LL_IOC_FLUSHCTX);
8134         if (rc == -1)
8135                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
8136                         mp, strerror(errno));
8137
8138         close(fd);
8139         return rc;
8140 }
8141
8142 static int lfs_flushctx(int argc, char **argv)
8143 {
8144         int     kdestroy = 0, reap = 0, c;
8145         char    mntdir[PATH_MAX] = {'\0'};
8146         int     index = 0;
8147         int     rc = 0;
8148
8149         while ((c = getopt(argc, argv, "kr")) != -1) {
8150                 switch (c) {
8151                 case 'k':
8152                         kdestroy = 1;
8153                         break;
8154                 case 'r':
8155                         reap = 1;
8156                         break;
8157                 default:
8158                         fprintf(stderr,
8159                                 "error: %s: option '-%c' unrecognized\n",
8160                                 argv[0], c);
8161                         return CMD_HELP;
8162                 }
8163         }
8164
8165         if (kdestroy) {
8166                 rc = system("kdestroy > /dev/null");
8167                 if (rc) {
8168                         rc = WEXITSTATUS(rc);
8169                         fprintf(stderr,
8170                                 "error destroying tickets: %d, continuing\n",
8171                                 rc);
8172                 }
8173         }
8174
8175         if (optind >= argc) {
8176                 /* flush for all mounted lustre fs. */
8177                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
8178                         /* Check if we have a mount point */
8179                         if (mntdir[0] == '\0')
8180                                 continue;
8181
8182                         if (flushctx_ioctl(mntdir))
8183                                 rc = -1;
8184
8185                         mntdir[0] = '\0'; /* avoid matching in next loop */
8186                 }
8187         } else {
8188                 /* flush fs as specified */
8189                 while (optind < argc) {
8190                         if (flushctx_ioctl(argv[optind++]))
8191                                 rc = -1;
8192                 }
8193         }
8194
8195         if (reap) {
8196                 rc = system("keyctl reap > /dev/null");
8197                 if (rc != 0) {
8198                         rc = WEXITSTATUS(rc);
8199                         fprintf(stderr, "error reaping keyring: %d\n", rc);
8200                 }
8201         }
8202
8203         return rc;
8204 }
8205
8206 static int lfs_changelog(int argc, char **argv)
8207 {
8208         void *changelog_priv;
8209         struct changelog_rec *rec;
8210         long long startrec = 0, endrec = 0;
8211         char *mdd;
8212         struct option long_opts[] = {
8213                 { .val = 'f', .name = "follow", .has_arg = no_argument },
8214                 { .name = NULL } };
8215         char short_opts[] = "f";
8216         int rc, follow = 0;
8217
8218         while ((rc = getopt_long(argc, argv, short_opts,
8219                 long_opts, NULL)) != -1) {
8220                 switch (rc) {
8221                 case 'f':
8222                         follow++;
8223                         break;
8224                 default:
8225                         fprintf(stderr,
8226                                 "%s changelog: unrecognized option '%s'\n",
8227                                 progname, argv[optind - 1]);
8228                         return CMD_HELP;
8229                 }
8230         }
8231         if (optind >= argc) {
8232                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
8233                         progname);
8234                 return CMD_HELP;
8235         }
8236
8237         mdd = argv[optind++];
8238         if (argc > optind)
8239                 startrec = strtoll(argv[optind++], NULL, 10);
8240         if (argc > optind)
8241                 endrec = strtoll(argv[optind++], NULL, 10);
8242
8243         rc = llapi_changelog_start(&changelog_priv,
8244                                    CHANGELOG_FLAG_BLOCK |
8245                                    CHANGELOG_FLAG_JOBID |
8246                                    CHANGELOG_FLAG_EXTRA_FLAGS |
8247                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
8248                                    mdd, startrec);
8249         if (rc < 0) {
8250                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
8251                         progname, strerror(errno = -rc));
8252                 return rc;
8253         }
8254
8255         rc = llapi_changelog_set_xflags(changelog_priv,
8256                                         CHANGELOG_EXTRA_FLAG_UIDGID |
8257                                         CHANGELOG_EXTRA_FLAG_NID |
8258                                         CHANGELOG_EXTRA_FLAG_OMODE |
8259                                         CHANGELOG_EXTRA_FLAG_XATTR);
8260         if (rc < 0) {
8261                 fprintf(stderr,
8262                         "%s changelog: cannot set xflags for changelog: %s\n",
8263                         progname, strerror(errno = -rc));
8264                 return rc;
8265         }
8266
8267         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
8268                 time_t secs;
8269                 struct tm ts;
8270
8271                 if (endrec && rec->cr_index > endrec) {
8272                         llapi_changelog_free(&rec);
8273                         break;
8274                 }
8275                 if (rec->cr_index < startrec) {
8276                         llapi_changelog_free(&rec);
8277                         continue;
8278                 }
8279
8280                 secs = rec->cr_time >> 30;
8281                 gmtime_r(&secs, &ts);
8282                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
8283                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
8284                        changelog_type2str(rec->cr_type),
8285                        ts.tm_hour, ts.tm_min, ts.tm_sec,
8286                        (int)(rec->cr_time & ((1 << 30) - 1)),
8287                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
8288                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
8289
8290                 if (rec->cr_flags & CLF_JOBID) {
8291                         struct changelog_ext_jobid *jid =
8292                                 changelog_rec_jobid(rec);
8293
8294                         if (jid->cr_jobid[0] != '\0')
8295                                 printf(" j=%s", jid->cr_jobid);
8296                 }
8297
8298                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
8299                         struct changelog_ext_extra_flags *ef =
8300                                 changelog_rec_extra_flags(rec);
8301
8302                         printf(" ef=0x%llx",
8303                                (unsigned long long)ef->cr_extra_flags);
8304
8305                         if (ef->cr_extra_flags & CLFE_UIDGID) {
8306                                 struct changelog_ext_uidgid *uidgid =
8307                                         changelog_rec_uidgid(rec);
8308
8309                                 printf(" u=%llu:%llu",
8310                                        (unsigned long long)uidgid->cr_uid,
8311                                        (unsigned long long)uidgid->cr_gid);
8312                         }
8313                         if (ef->cr_extra_flags & CLFE_NID) {
8314                                 struct changelog_ext_nid *nid =
8315                                         changelog_rec_nid(rec);
8316
8317                                 printf(" nid=%s",
8318                                        libcfs_nid2str(nid->cr_nid));
8319                         }
8320
8321                         if (ef->cr_extra_flags & CLFE_OPEN) {
8322                                 struct changelog_ext_openmode *omd =
8323                                         changelog_rec_openmode(rec);
8324                                 char mode[] = "---";
8325
8326                                 /* exec mode must be exclusive */
8327                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
8328                                         mode[2] = 'x';
8329                                 } else {
8330                                         if (omd->cr_openflags & MDS_FMODE_READ)
8331                                                 mode[0] = 'r';
8332                                         if (omd->cr_openflags &
8333                                             (MDS_FMODE_WRITE |
8334                                              MDS_OPEN_TRUNC |
8335                                              MDS_OPEN_APPEND))
8336                                                 mode[1] = 'w';
8337                                 }
8338
8339                                 if (strcmp(mode, "---") != 0)
8340                                         printf(" m=%s", mode);
8341                         }
8342
8343                         if (ef->cr_extra_flags & CLFE_XATTR) {
8344                                 struct changelog_ext_xattr *xattr =
8345                                         changelog_rec_xattr(rec);
8346
8347                                 if (xattr->cr_xattr[0] != '\0')
8348                                         printf(" x=%s", xattr->cr_xattr);
8349                         }
8350                 }
8351
8352                 if (!fid_is_zero(&rec->cr_pfid))
8353                         printf(" p="DFID, PFID(&rec->cr_pfid));
8354                 if (rec->cr_namelen)
8355                         printf(" %.*s", rec->cr_namelen,
8356                                changelog_rec_name(rec));
8357
8358                 if (rec->cr_flags & CLF_RENAME) {
8359                         struct changelog_ext_rename *rnm =
8360                                 changelog_rec_rename(rec);
8361
8362                         if (!fid_is_zero(&rnm->cr_sfid))
8363                                 printf(" s="DFID" sp="DFID" %.*s",
8364                                        PFID(&rnm->cr_sfid),
8365                                        PFID(&rnm->cr_spfid),
8366                                        (int)changelog_rec_snamelen(rec),
8367                                        changelog_rec_sname(rec));
8368                 }
8369                 printf("\n");
8370
8371                 llapi_changelog_free(&rec);
8372         }
8373
8374         llapi_changelog_fini(&changelog_priv);
8375
8376         if (rc < 0)
8377                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
8378                         progname, strerror(errno = -rc));
8379
8380         return (rc == 1 ? 0 : rc);
8381 }
8382
8383 static int lfs_changelog_clear(int argc, char **argv)
8384 {
8385         long long endrec;
8386         int rc;
8387
8388         if (argc != 4)
8389                 return CMD_HELP;
8390
8391         endrec = strtoll(argv[3], NULL, 10);
8392
8393         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
8394
8395         if (rc == -EINVAL)
8396                 fprintf(stderr, "%s: record out of range: %llu\n",
8397                         argv[0], endrec);
8398         else if (rc == -ENOENT)
8399                 fprintf(stderr, "%s: no changelog user: %s\n",
8400                         argv[0], argv[2]);
8401         else if (rc)
8402                 fprintf(stderr, "%s error: %s\n", argv[0],
8403                         strerror(-rc));
8404
8405         if (rc)
8406                 errno = -rc;
8407
8408         return rc;
8409 }
8410
8411 static void rstripc(char *str, int c)
8412 {
8413         char *end = str + strlen(str);
8414
8415         for (; str < end && end[-1] == c; --end)
8416                 end[-1] = '\0';
8417 }
8418
8419 static int lfs_fid2path(int argc, char **argv)
8420 {
8421         struct option long_opts[] = {
8422                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
8423                 { .val = 'c',   .name = "current",      .has_arg = no_argument },
8424                 { .val = 'c',   .name = "print-link",   .has_arg = no_argument },
8425                 { .val = 'f',   .name = "print-fid",    .has_arg = no_argument },
8426                 { .val = 'l',   .name = "link", .has_arg = required_argument },
8427                 { .name = NULL } };
8428         char short_opts[] = "cfl:pr:";
8429         bool print_link = false;
8430         bool print_fid = false;
8431         bool print_mnt_dir;
8432         char mnt_dir[PATH_MAX] = "";
8433         int mnt_fd = -1;
8434         char *path_or_fsname;
8435         long long recno = -1;
8436         int linkno = -1;
8437         char *endptr = NULL;
8438         int rc = 0;
8439         int c;
8440         int i;
8441
8442         while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
8443                 switch (c) {
8444                 case 'c':
8445                         print_link = true;
8446                         break;
8447                 case 'f':
8448                         print_fid = true;
8449                         break;
8450                 case 'l':
8451                         linkno = strtol(optarg, &endptr, 10);
8452                         if (*endptr != '\0') {
8453                                 fprintf(stderr,
8454                                         "%s fid2path: invalid linkno '%s'\n",
8455                                         progname, optarg);
8456                                 return CMD_HELP;
8457                         }
8458                         break;
8459                 case 'r':
8460                         /* recno is something to do with changelogs
8461                          * that was never implemented. We just pass it
8462                          * through for the MDT to ignore.
8463                          */
8464                         recno = strtoll(optarg, &endptr, 10);
8465                         if (*endptr != '\0') {
8466                                 fprintf(stderr,
8467                                         "%s fid2path: invalid recno '%s'\n",
8468                                         progname, optarg);
8469                                 return CMD_HELP;
8470                         }
8471                         break;
8472                 default:
8473                         fprintf(stderr,
8474                                 "%s fid2path: unrecognized option '%s'\n",
8475                                 progname, argv[optind - 1]);
8476                         return CMD_HELP;
8477                 }
8478         }
8479
8480         if (argc - optind < 2) {
8481                 fprintf(stderr,
8482                         "Usage: %s fid2path FSNAME|ROOT FID...\n",
8483                         progname);
8484                 return CMD_HELP;
8485         }
8486
8487         path_or_fsname = argv[optind];
8488
8489         if (*path_or_fsname == '/') {
8490                 print_mnt_dir = true;
8491                 rc = llapi_search_mounts(path_or_fsname, 0, mnt_dir, NULL);
8492         } else {
8493                 print_mnt_dir = false;
8494                 rc = llapi_search_rootpath(mnt_dir, path_or_fsname);
8495         }
8496
8497         if (rc < 0) {
8498                 fprintf(stderr,
8499                         "%s fid2path: cannot resolve mount point for '%s': %s\n",
8500                         progname, path_or_fsname, strerror(-rc));
8501                 goto out;
8502         }
8503
8504         mnt_fd = open(mnt_dir, O_RDONLY | O_DIRECTORY);
8505         if (mnt_fd < 0) {
8506                 fprintf(stderr,
8507                         "%s fid2path: cannot open mount point for '%s': %s\n",
8508                         progname, path_or_fsname, strerror(-rc));
8509                 goto out;
8510         }
8511
8512         /* Strip trailing slashes from mnt_dir. */
8513         rstripc(mnt_dir + 1, '/');
8514
8515         for (i = optind + 1; i < argc; i++) {
8516                 const char *fid_str = argv[i];
8517                 struct lu_fid fid;
8518                 int rc2;
8519
8520                 rc2 = llapi_fid_parse(fid_str, &fid, NULL);
8521                 if (rc2 < 0) {
8522                         fprintf(stderr,
8523                                 "%s fid2path: invalid FID '%s'\n",
8524                                 progname, fid_str);
8525                         if (rc == 0)
8526                                 rc = rc2;
8527
8528                         continue;
8529                 }
8530
8531                 int linktmp = (linkno >= 0) ? linkno : 0;
8532                 while (1) {
8533                         int oldtmp = linktmp;
8534                         long long rectmp = recno;
8535                         char path_buf[PATH_MAX];
8536
8537                         rc2 = llapi_fid2path_at(mnt_fd, &fid,
8538                                 path_buf, sizeof(path_buf), &rectmp, &linktmp);
8539                         if (rc2 < 0) {
8540                                 fprintf(stderr,
8541                                         "%s fid2path: cannot find %s %s: %s\n",
8542                                         progname, path_or_fsname, fid_str,
8543                                         strerror(-rc2));
8544                                 if (rc == 0)
8545                                         rc = rc2;
8546                                 break;
8547                         }
8548
8549                         if (print_fid)
8550                                 printf("%s ", fid_str);
8551
8552                         if (print_link)
8553                                 printf("%d ", linktmp);
8554
8555                         /* You may think this looks wrong or weird (and it is!)
8556                          * but we are actually trying to preserve the old quirky
8557                          * behaviors (enforced by our old quirky tests!) that
8558                          * make lfs so much fun to work on:
8559                          *
8560                          *   lustre 0x200000007:0x1:0x0 => "/"
8561                          *   /mnt/lustre 0x200000007:0x1:0x0 => "/mnt/lustre//"
8562                          *
8563                          * Note that llapi_fid2path() returns "" for the root
8564                          * FID. */
8565
8566                         printf("%s%s%s\n",
8567                                print_mnt_dir ? mnt_dir : "",
8568                                (print_mnt_dir || *path_buf == '\0') ? "/" : "",
8569                                path_buf);
8570
8571                         if (linkno >= 0)
8572                                 /* specified linkno */
8573                                 break;
8574
8575                         if (oldtmp == linktmp)
8576                                 /* no more links */
8577                                 break;
8578                 }
8579         }
8580 out:
8581         if (!(mnt_fd < 0))
8582                 close(mnt_fd);
8583
8584         return rc;
8585 }
8586
8587 static int lfs_path2fid(int argc, char **argv)
8588 {
8589         struct option long_opts[] = {
8590                 { .val = 'p', .name = "parents", .has_arg = no_argument },
8591                 { .name = NULL } };
8592         char            **path;
8593         const char        short_opts[] = "p";
8594         const char       *sep = "";
8595         struct lu_fid     fid;
8596         int               rc = 0;
8597         bool              show_parents = false;
8598
8599         while ((rc = getopt_long(argc, argv, short_opts,
8600                                  long_opts, NULL)) != -1) {
8601                 switch (rc) {
8602                 case 'p':
8603                         show_parents = true;
8604                         break;
8605                 default:
8606                         fprintf(stderr,
8607                                 "%s path2fid: unrecognized option '%s'\n",
8608                                 progname, argv[optind - 1]);
8609                         return CMD_HELP;
8610                 }
8611         }
8612
8613         if (optind > argc - 1) {
8614                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
8615                         progname);
8616                 return CMD_HELP;
8617         } else if (optind < argc - 1) {
8618                 sep = ": ";
8619         }
8620
8621         rc = 0;
8622         for (path = argv + optind; *path != NULL; path++) {
8623                 int err = 0;
8624
8625                 if (!show_parents) {
8626                         err = llapi_path2fid(*path, &fid);
8627                         if (!err)
8628                                 printf("%s%s"DFID"\n",
8629                                        *sep != '\0' ? *path : "", sep,
8630                                        PFID(&fid));
8631                 } else {
8632                         char            name[NAME_MAX + 1];
8633                         unsigned int    linkno = 0;
8634
8635                         while ((err = llapi_path2parent(*path, linkno, &fid,
8636                                                 name, sizeof(name))) == 0) {
8637                                 if (*sep != '\0' && linkno == 0)
8638                                         printf("%s%s", *path, sep);
8639
8640                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
8641                                        PFID(&fid), name);
8642                                 linkno++;
8643                         }
8644
8645                         /* err == -ENODATA is end-of-loop */
8646                         if (linkno > 0 && err == -ENODATA) {
8647                                 printf("\n");
8648                                 err = 0;
8649                         }
8650                 }
8651
8652                 if (err) {
8653                         fprintf(stderr,
8654                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
8655                                 progname, show_parents ? "parent " : "", *path,
8656                                 strerror(-err));
8657                         if (rc == 0) {
8658                                 rc = err;
8659                                 errno = -err;
8660                         }
8661                 }
8662         }
8663
8664         return rc;
8665 }
8666
8667 #define MAX_ERRNO       4095
8668 #define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
8669
8670 static int lfs_rmfid_and_show_errors(const char *device, struct fid_array *fa)
8671 {
8672         int rc, rc2, k;
8673
8674         rc = llapi_rmfid(device, fa);
8675         if (rc < 0) {
8676                 fprintf(stderr, "%s rmfid: cannot remove FIDs: %s\n",
8677                         progname, strerror(-rc));
8678                 return rc;
8679         }
8680
8681         for (k = 0; k < fa->fa_nr; k++) {
8682                 rc2 = (__s32)fa->fa_fids[k].f_ver;
8683                 if (!IS_ERR_VALUE(rc2))
8684                         continue;
8685
8686                 if (rc == 0)
8687                         rc = rc2;
8688
8689                 fa->fa_fids[k].f_ver = 0;
8690                 fprintf(stderr, "%s rmfid: cannot remove "DFID": %s\n",
8691                         progname, PFID(&fa->fa_fids[k]), strerror(-rc2));
8692         }
8693
8694         return rc;
8695 }
8696
8697 static int lfs_rmfid(int argc, char **argv)
8698 {
8699         char *fidstr, *device;
8700         int rc = 0, rc2, nr;
8701         struct fid_array *fa;
8702
8703         if (optind > argc - 1) {
8704                 fprintf(stderr, "%s rmfid: missing dirname\n", progname);
8705                 return CMD_HELP;
8706         }
8707
8708         device = argv[optind++];
8709
8710         nr = argc - optind;
8711         fa = malloc(offsetof(struct fid_array, fa_fids[nr + 1]));
8712         if (!fa)
8713                 return -ENOMEM;
8714
8715         fa->fa_nr = 0;
8716         rc = 0;
8717         while (optind < argc) {
8718                 int found;
8719
8720                 fidstr = argv[optind++];
8721                 while (*fidstr == '[')
8722                         fidstr++;
8723                 found = sscanf(fidstr, SFID, RFID(&fa->fa_fids[fa->fa_nr]));
8724                 if (found != 3) {
8725                         fprintf(stderr, "unrecognized FID: %s\n",
8726                                 argv[optind - 1]);
8727                         exit(1);
8728                 }
8729                 fa->fa_nr++;
8730                 if (fa->fa_nr == OBD_MAX_FIDS_IN_ARRAY) {
8731                         /* start another batch */
8732                         rc2 = lfs_rmfid_and_show_errors(device, fa);
8733                         if (rc2 && !rc)
8734                                 rc = rc2;
8735                         fa->fa_nr = 0;
8736                 }
8737         }
8738         if (fa->fa_nr) {
8739                 rc2 = lfs_rmfid_and_show_errors(device, fa);
8740                 if (rc2 && !rc)
8741                         rc = rc2;
8742         }
8743
8744         return rc;
8745 }
8746
8747 static int lfs_data_version(int argc, char **argv)
8748 {
8749         char *path;
8750         __u64 data_version;
8751         int fd;
8752         int rc;
8753         int c;
8754         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
8755
8756         if (argc < 2) {
8757                 fprintf(stderr, "%s data_version: FILE must be specified\n",
8758                         progname);
8759                 return CMD_HELP;
8760         }
8761
8762         while ((c = getopt(argc, argv, "nrw")) != -1) {
8763                 switch (c) {
8764                 case 'n':
8765                         data_version_flags = 0;
8766                         break;
8767                 case 'r':
8768                         data_version_flags |= LL_DV_RD_FLUSH;
8769                         break;
8770                 case 'w':
8771                         data_version_flags |= LL_DV_WR_FLUSH;
8772                         break;
8773                 default:
8774                         fprintf(stderr,
8775                                 "%s data_version: unrecognized option '%s'\n",
8776                                 progname, argv[optind - 1]);
8777                         return CMD_HELP;
8778                 }
8779         }
8780         if (optind == argc) {
8781                 fprintf(stderr, "%s data_version: FILE must be specified\n",
8782                         progname);
8783                 return CMD_HELP;
8784         }
8785
8786         path = argv[optind];
8787         fd = open(path, O_RDONLY);
8788         if (fd < 0) {
8789                 rc = -errno;
8790                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
8791                         progname, path, strerror(-rc));
8792                 return rc;
8793         }
8794
8795         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
8796         if (rc < 0)
8797                 fprintf(stderr,
8798                         "%s data_version: cannot get version for '%s': %s\n",
8799                         progname, path, strerror(-rc));
8800         else
8801                 printf("%ju" "\n", (uintmax_t)data_version);
8802
8803         close(fd);
8804         return rc;
8805 }
8806
8807 static int lfs_hsm_state(int argc, char **argv)
8808 {
8809         int rc;
8810         int i = 1;
8811         char *path;
8812         struct hsm_user_state hus;
8813
8814         if (argc < 2)
8815                 return CMD_HELP;
8816
8817         do {
8818                 path = argv[i];
8819
8820                 rc = llapi_hsm_state_get(path, &hus);
8821                 if (rc) {
8822                         fprintf(stderr, "can't get hsm state for %s: %s\n",
8823                                 path, strerror(errno = -rc));
8824                         return rc;
8825                 }
8826
8827                 /* Display path name and status flags */
8828                 printf("%s: (0x%08x)", path, hus.hus_states);
8829
8830                 if (hus.hus_states & HS_RELEASED)
8831                         printf(" released");
8832                 if (hus.hus_states & HS_EXISTS)
8833                         printf(" exists");
8834                 if (hus.hus_states & HS_DIRTY)
8835                         printf(" dirty");
8836                 if (hus.hus_states & HS_ARCHIVED)
8837                         printf(" archived");
8838                 /* Display user-settable flags */
8839                 if (hus.hus_states & HS_NORELEASE)
8840                         printf(" never_release");
8841                 if (hus.hus_states & HS_NOARCHIVE)
8842                         printf(" never_archive");
8843                 if (hus.hus_states & HS_LOST)
8844                         printf(" lost_from_hsm");
8845
8846                 if (hus.hus_archive_id != 0)
8847                         printf(", archive_id:%d", hus.hus_archive_id);
8848                 printf("\n");
8849
8850         } while (++i < argc);
8851
8852         return 0;
8853 }
8854
8855 #define LFS_HSM_SET   0
8856 #define LFS_HSM_CLEAR 1
8857
8858 /**
8859  * Generic function to set or clear HSM flags.
8860  * Used by hsm_set and hsm_clear.
8861  *
8862  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
8863  */
8864 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
8865 {
8866         struct option long_opts[] = {
8867         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
8868         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
8869         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
8870         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
8871         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
8872         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
8873         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
8874         { .name = NULL } };
8875         char short_opts[] = "lraAdei:";
8876         __u64 mask = 0;
8877         int c, rc;
8878         char *path;
8879         __u32 archive_id = 0;
8880         char *end = NULL;
8881
8882         if (argc < 3)
8883                 return CMD_HELP;
8884
8885         while ((c = getopt_long(argc, argv, short_opts,
8886                                 long_opts, NULL)) != -1) {
8887                 switch (c) {
8888                 case 'l':
8889                         mask |= HS_LOST;
8890                         break;
8891                 case 'a':
8892                         mask |= HS_NOARCHIVE;
8893                         break;
8894                 case 'A':
8895                         mask |= HS_ARCHIVED;
8896                         break;
8897                 case 'r':
8898                         mask |= HS_NORELEASE;
8899                         break;
8900                 case 'd':
8901                         mask |= HS_DIRTY;
8902                         break;
8903                 case 'e':
8904                         mask |= HS_EXISTS;
8905                         break;
8906                 case 'i':
8907                         archive_id = strtol(optarg, &end, 10);
8908                         if (*end != '\0') {
8909                                 fprintf(stderr, "invalid archive_id: '%s'\n",
8910                                         end);
8911                                 return CMD_HELP;
8912                         }
8913                         break;
8914                 case '?':
8915                         return CMD_HELP;
8916                 default:
8917                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
8918                                 argv[0], argv[optind - 1]);
8919                         return CMD_HELP;
8920                 }
8921         }
8922
8923         /* User should have specified a flag */
8924         if (mask == 0)
8925                 return CMD_HELP;
8926
8927         while (optind < argc) {
8928                 path = argv[optind];
8929
8930                 /* If mode == 0, this means we apply the mask. */
8931                 if (mode == LFS_HSM_SET)
8932                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
8933                 else
8934                         rc = llapi_hsm_state_set(path, 0, mask, 0);
8935
8936                 if (rc != 0) {
8937                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
8938                                 path, strerror(errno = -rc));
8939                         return rc;
8940                 }
8941                 optind++;
8942         }
8943
8944         return 0;
8945 }
8946
8947 static int lfs_hsm_action(int argc, char **argv)
8948 {
8949         int                              rc;
8950         int                              i = 1;
8951         char                            *path;
8952         struct hsm_current_action        hca;
8953         struct hsm_extent                he;
8954         enum hsm_user_action             hua;
8955         enum hsm_progress_states         hps;
8956
8957         if (argc < 2)
8958                 return CMD_HELP;
8959
8960         do {
8961                 path = argv[i];
8962
8963                 rc = llapi_hsm_current_action(path, &hca);
8964                 if (rc) {
8965                         fprintf(stderr, "can't get hsm action for %s: %s\n",
8966                                 path, strerror(errno = -rc));
8967                         return rc;
8968                 }
8969                 he = hca.hca_location;
8970                 hua = hca.hca_action;
8971                 hps = hca.hca_state;
8972
8973                 printf("%s: %s", path, hsm_user_action2name(hua));
8974
8975                 /* Skip file without action */
8976                 if (hca.hca_action == HUA_NONE) {
8977                         printf("\n");
8978                         continue;
8979                 }
8980
8981                 printf(" %s ", hsm_progress_state2name(hps));
8982
8983                 if ((hps == HPS_RUNNING) &&
8984                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
8985                         printf("(%llu bytes moved)\n",
8986                                (unsigned long long)he.length);
8987                 else if ((he.offset + he.length) == LUSTRE_EOF)
8988                         printf("(from %llu to EOF)\n",
8989                                (unsigned long long)he.offset);
8990                 else
8991                         printf("(from %llu to %llu)\n",
8992                                (unsigned long long)he.offset,
8993                                (unsigned long long)(he.offset + he.length));
8994
8995         } while (++i < argc);
8996
8997         return 0;
8998 }
8999
9000 static int lfs_hsm_set(int argc, char **argv)
9001 {
9002         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
9003 }
9004
9005 static int lfs_hsm_clear(int argc, char **argv)
9006 {
9007         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
9008 }
9009
9010 /**
9011  * Check file state and return its fid, to be used by lfs_hsm_request().
9012  *
9013  * \param[in]     file      Path to file to check
9014  * \param[in,out] fid       Pointer to allocated lu_fid struct.
9015  * \param[in,out] last_dev  Pointer to last device id used.
9016  *
9017  * \return 0 on success.
9018  */
9019 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
9020                                 dev_t *last_dev)
9021 {
9022         struct stat     st;
9023         int             rc;
9024
9025         rc = lstat(file, &st);
9026         if (rc) {
9027                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
9028                 return -errno;
9029         }
9030         /*
9031          * Checking for regular file as archiving as posix copytool
9032          * rejects archiving files other than regular files
9033          */
9034         if (!S_ISREG(st.st_mode)) {
9035                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
9036                 return CMD_HELP;
9037         }
9038         /* A request should be ... */
9039         if (*last_dev != st.st_dev && *last_dev != 0) {
9040                 fprintf(stderr,
9041                         "All files should be on the same filesystem: %s\n",
9042                         file);
9043                 return -EINVAL;
9044         }
9045         *last_dev = st.st_dev;
9046
9047         rc = llapi_path2fid(file, fid);
9048         if (rc) {
9049                 fprintf(stderr, "Cannot read FID of %s: %s\n",
9050                         file, strerror(-rc));
9051                 return rc;
9052         }
9053         return 0;
9054 }
9055
9056 /* Fill an HSM HUR item with a given file name.
9057  *
9058  * If mntpath is set, then the filename is actually a FID, and no
9059  * lookup on the filesystem will be performed.
9060  *
9061  * \param[in]  hur         the user request to fill
9062  * \param[in]  idx         index of the item inside the HUR to fill
9063  * \param[in]  mntpath     mountpoint of Lustre
9064  * \param[in]  fname       filename (if mtnpath is NULL)
9065  *                         or FID (if mntpath is set)
9066  * \param[in]  last_dev    pointer to last device id used
9067  *
9068  * \retval 0 on success
9069  * \retval CMD_HELP or a negative errno on error
9070  */
9071 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
9072                          const char *mntpath, const char *fname,
9073                          dev_t *last_dev)
9074 {
9075         struct hsm_user_item *hui = &hur->hur_user_item[idx];
9076         int rc;
9077
9078         hui->hui_extent.length = -1;
9079
9080         if (mntpath) {
9081                 rc = llapi_fid_parse(fname, &hui->hui_fid, NULL);
9082                 if (rc)
9083                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
9084                                 fname);
9085         } else {
9086                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
9087         }
9088
9089         if (rc == 0)
9090                 hur->hur_request.hr_itemcount++;
9091
9092         return rc;
9093 }
9094
9095 static int lfs_hsm_request(int argc, char **argv, int action)
9096 {
9097         struct option long_opts[] = {
9098         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
9099         { .val = 'D',   .name = "data",         .has_arg = required_argument },
9100         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
9101         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
9102         { .name = NULL } };
9103         dev_t last_dev = 0;
9104         char short_opts[] = "l:D:a:m:";
9105         struct hsm_user_request *hur, *oldhur;
9106         int c, i;
9107         size_t len;
9108         int nbfile;
9109         char *line = NULL;
9110         char *filelist = NULL;
9111         char fullpath[PATH_MAX];
9112         char *opaque = NULL;
9113         int opaque_len = 0;
9114         int archive_id = 0;
9115         FILE *fp;
9116         int nbfile_alloc = 0;
9117         char *some_file = NULL;
9118         char *mntpath = NULL;
9119         int rc;
9120
9121         if (argc < 2)
9122                 return CMD_HELP;
9123
9124         while ((c = getopt_long(argc, argv, short_opts,
9125                                 long_opts, NULL)) != -1) {
9126                 switch (c) {
9127                 case 'l':
9128                         filelist = optarg;
9129                         break;
9130                 case 'D':
9131                         opaque = optarg;
9132                         break;
9133                 case 'a':
9134                         if (action != HUA_ARCHIVE &&
9135                             action != HUA_REMOVE) {
9136                                 fprintf(stderr,
9137                                         "error: -a is supported only when archiving or removing\n");
9138                                 return CMD_HELP;
9139                         }
9140                         archive_id = atoi(optarg);
9141                         break;
9142                 case 'm':
9143                         if (!some_file) {
9144                                 mntpath = optarg;
9145                                 some_file = strdup(optarg);
9146                         }
9147                         break;
9148                 case '?':
9149                         return CMD_HELP;
9150                 default:
9151                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
9152                                 argv[0], argv[optind - 1]);
9153                         return CMD_HELP;
9154                 }
9155         }
9156
9157         /* All remaining args are files, so we have at least nbfile */
9158         nbfile = argc - optind;
9159
9160         if ((nbfile == 0) && (!filelist))
9161                 return CMD_HELP;
9162
9163         if (opaque)
9164                 opaque_len = strlen(opaque);
9165
9166         /*
9167          * Alloc the request structure with enough place to store all files
9168          * from command line.
9169          */
9170         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
9171         if (!hur) {
9172                 fprintf(stderr, "Cannot create the request: %s\n",
9173                         strerror(errno));
9174                 return errno;
9175         }
9176         nbfile_alloc = nbfile;
9177
9178         hur->hur_request.hr_action = action;
9179         hur->hur_request.hr_archive_id = archive_id;
9180         hur->hur_request.hr_flags = 0;
9181
9182         /* All remaining args are files, add them */
9183         if (nbfile != 0 && some_file == NULL)
9184                 some_file = strdup(argv[optind]);
9185
9186         for (i = 0; i < nbfile; i++) {
9187                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
9188                                    &last_dev);
9189                 if (rc)
9190                         goto out_free;
9191         }
9192
9193         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
9194
9195         /* If a filelist was specified, read the filelist from it. */
9196         if (filelist) {
9197                 fp = fopen(filelist, "r");
9198                 if (!fp) {
9199                         fprintf(stderr, "Cannot read the file list %s: %s\n",
9200                                 filelist, strerror(errno));
9201                         rc = -errno;
9202                         goto out_free;
9203                 }
9204
9205                 while ((rc = getline(&line, &len, fp)) != -1) {
9206                         /*
9207                          * If allocated buffer was too small, get something
9208                          * larger
9209                          */
9210                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
9211                                 ssize_t size;
9212
9213                                 nbfile_alloc = nbfile_alloc * 2 + 1;
9214                                 oldhur = hur;
9215                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
9216                                                                    opaque_len);
9217                                 if (!hur) {
9218                                         fprintf(stderr,
9219                                                 "hsm: cannot allocate the request: %s\n",
9220                                                 strerror(errno));
9221                                         hur = oldhur;
9222                                         rc = -errno;
9223                                         fclose(fp);
9224                                         goto out_free;
9225                                 }
9226                                 size = hur_len(oldhur);
9227                                 if (size < 0) {
9228                                         fprintf(stderr,
9229                                                 "hsm: cannot allocate %u files + %u bytes data\n",
9230                                                 oldhur->hur_request.hr_itemcount,
9231                                                 oldhur->hur_request.hr_data_len);
9232                                         free(hur);
9233                                         hur = oldhur;
9234                                         rc = -E2BIG;
9235                                         fclose(fp);
9236                                         goto out_free;
9237                                 }
9238                                 memcpy(hur, oldhur, size);
9239                                 free(oldhur);
9240                         }
9241
9242                         /* Chop CR */
9243                         if (line[strlen(line) - 1] == '\n')
9244                                 line[strlen(line) - 1] = '\0';
9245
9246                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
9247                                            mntpath, line, &last_dev);
9248                         if (rc) {
9249                                 fclose(fp);
9250                                 goto out_free;
9251                         }
9252
9253                         if (!some_file) {
9254                                 some_file = line;
9255                                 line = NULL;
9256                         }
9257                 }
9258
9259                 rc = fclose(fp);
9260                 free(line);
9261         }
9262
9263         /* If a --data was used, add it to the request */
9264         hur->hur_request.hr_data_len = opaque_len;
9265         if (opaque)
9266                 memcpy(hur_data(hur), opaque, opaque_len);
9267
9268         /* Send the HSM request */
9269         if (realpath(some_file, fullpath) == NULL) {
9270                 fprintf(stderr, "Could not find path '%s': %s\n",
9271                         some_file, strerror(errno));
9272         }
9273         rc = llapi_hsm_request(fullpath, hur);
9274         if (rc) {
9275                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
9276                         some_file, strerror(-rc));
9277                 goto out_free;
9278         }
9279
9280 out_free:
9281         free(some_file);
9282         free(hur);
9283         return rc;
9284 }
9285
9286 static int lfs_hsm_archive(int argc, char **argv)
9287 {
9288         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
9289 }
9290
9291 static int lfs_hsm_restore(int argc, char **argv)
9292 {
9293         return lfs_hsm_request(argc, argv, HUA_RESTORE);
9294 }
9295
9296 static int lfs_hsm_release(int argc, char **argv)
9297 {
9298         return lfs_hsm_request(argc, argv, HUA_RELEASE);
9299 }
9300
9301 static int lfs_hsm_remove(int argc, char **argv)
9302 {
9303         return lfs_hsm_request(argc, argv, HUA_REMOVE);
9304 }
9305
9306 static int lfs_hsm_cancel(int argc, char **argv)
9307 {
9308         return lfs_hsm_request(argc, argv, HUA_CANCEL);
9309 }
9310
9311 static int lfs_swap_layouts(int argc, char **argv)
9312 {
9313         if (argc != 3)
9314                 return CMD_HELP;
9315
9316         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
9317                                   SWAP_LAYOUTS_KEEP_MTIME |
9318                                   SWAP_LAYOUTS_KEEP_ATIME);
9319 }
9320
9321 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
9322
9323 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
9324
9325 int lfs_get_mode(const char *string)
9326 {
9327         enum lock_mode_user mode;
9328
9329         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
9330                 if (lock_mode_names[mode] == NULL)
9331                         continue;
9332                 if (strcmp(string, lock_mode_names[mode]) == 0)
9333                         return mode;
9334         }
9335
9336         return -EINVAL;
9337 }
9338
9339 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
9340 {
9341         enum lu_ladvise_type advice;
9342
9343         for (advice = 0;
9344              advice < ARRAY_SIZE(ladvise_names); advice++) {
9345                 if (ladvise_names[advice] == NULL)
9346                         continue;
9347                 if (strcmp(string, ladvise_names[advice]) == 0)
9348                         return advice;
9349         }
9350
9351         return LU_LADVISE_INVALID;
9352 }
9353
9354 static int lfs_ladvise(int argc, char **argv)
9355 {
9356         struct option long_opts[] = {
9357         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
9358         { .val = 'b',   .name = "background",   .has_arg = no_argument },
9359         { .val = 'e',   .name = "end",          .has_arg = required_argument },
9360         { .val = 'l',   .name = "length",       .has_arg = required_argument },
9361         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
9362         { .val = 's',   .name = "start",        .has_arg = required_argument },
9363         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
9364         { .name = NULL } };
9365         char                     short_opts[] = "a:be:l:m:s:u";
9366         int                      c;
9367         int                      rc = 0;
9368         const char              *path;
9369         int                      fd;
9370         struct llapi_lu_ladvise  advice;
9371         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
9372         unsigned long long       start = 0;
9373         unsigned long long       end = LUSTRE_EOF;
9374         unsigned long long       length = 0;
9375         unsigned long long       size_units;
9376         unsigned long long       flags = 0;
9377         int                      mode = 0;
9378
9379         optind = 0;
9380         while ((c = getopt_long(argc, argv, short_opts,
9381                                 long_opts, NULL)) != -1) {
9382                 switch (c) {
9383                 case 'a':
9384                         advice_type = lfs_get_ladvice(optarg);
9385                         if (advice_type == LU_LADVISE_INVALID) {
9386                                 fprintf(stderr,
9387                                         "%s: invalid advice type '%s'\n",
9388                                         argv[0], optarg);
9389                                 fprintf(stderr, "Valid types:");
9390
9391                                 for (advice_type = 0;
9392                                      advice_type < ARRAY_SIZE(ladvise_names);
9393                                      advice_type++) {
9394                                         if (ladvise_names[advice_type] == NULL)
9395                                                 continue;
9396                                         fprintf(stderr, " %s",
9397                                                 ladvise_names[advice_type]);
9398                                 }
9399                                 fprintf(stderr, "\n");
9400
9401                                 return CMD_HELP;
9402                         }
9403                         break;
9404                 case 'b':
9405                         flags |= LF_ASYNC;
9406                         break;
9407                 case 'u':
9408                         flags |= LF_UNSET;
9409                         break;
9410                 case 'e':
9411                         size_units = 1;
9412                         rc = llapi_parse_size(optarg, &end,
9413                                               &size_units, 0);
9414                         if (rc) {
9415                                 fprintf(stderr, "%s: bad end offset '%s'\n",
9416                                         argv[0], optarg);
9417                                 return CMD_HELP;
9418                         }
9419                         break;
9420                 case 's':
9421                         size_units = 1;
9422                         rc = llapi_parse_size(optarg, &start,
9423                                               &size_units, 0);
9424                         if (rc) {
9425                                 fprintf(stderr,
9426                                         "%s: bad start offset '%s'\n",
9427                                         argv[0], optarg);
9428                                 return CMD_HELP;
9429                         }
9430                         break;
9431                 case 'l':
9432                         size_units = 1;
9433                         rc = llapi_parse_size(optarg, &length,
9434                                               &size_units, 0);
9435                         if (rc) {
9436                                 fprintf(stderr, "%s: bad length '%s'\n",
9437                                         argv[0], optarg);
9438                                 return CMD_HELP;
9439                         }
9440                         break;
9441                 case 'm':
9442                         mode = lfs_get_mode(optarg);
9443                         if (mode < 0) {
9444                                 fprintf(stderr,
9445                                         "%s: bad mode '%s', valid modes are READ or WRITE\n",
9446                                         argv[0], optarg);
9447                                 return CMD_HELP;
9448                         }
9449                         break;
9450                 case '?':
9451                         return CMD_HELP;
9452                 default:
9453                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9454                                 argv[0], argv[optind - 1]);
9455                         return CMD_HELP;
9456                 }
9457         }
9458
9459         if (advice_type == LU_LADVISE_INVALID) {
9460                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
9461                 fprintf(stderr, "Valid types:");
9462                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
9463                      advice_type++) {
9464                         if (ladvise_names[advice_type] == NULL)
9465                                 continue;
9466                         fprintf(stderr, " %s", ladvise_names[advice_type]);
9467                 }
9468                 fprintf(stderr, "\n");
9469                 return CMD_HELP;
9470         }
9471
9472         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
9473                 fprintf(stderr,
9474                         "%s: Lock no expand advice is a per file descriptor advice, so when called from lfs, it does nothing.\n",
9475                         argv[0]);
9476                 return CMD_HELP;
9477         }
9478
9479         if (argc <= optind) {
9480                 fprintf(stderr, "%s: please give one or more file names\n",
9481                         argv[0]);
9482                 return CMD_HELP;
9483         }
9484
9485         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
9486                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
9487                         argv[0]);
9488                 return CMD_HELP;
9489         }
9490
9491         if (end == LUSTRE_EOF && length != 0)
9492                 end = start + length;
9493
9494         if (end <= start) {
9495                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
9496                         argv[0], start, end);
9497                 return CMD_HELP;
9498         }
9499
9500         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
9501                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
9502                         argv[0]);
9503                 return CMD_HELP;
9504         }
9505
9506         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
9507                 fprintf(stderr, "%s: mode is required with lockahead\n",
9508                         argv[0]);
9509                 return CMD_HELP;
9510         }
9511
9512         while (optind < argc) {
9513                 int rc2;
9514
9515                 path = argv[optind++];
9516
9517                 fd = open(path, O_RDONLY);
9518                 if (fd < 0) {
9519                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
9520                                 argv[0], path, strerror(errno));
9521                         rc2 = -errno;
9522                         goto next;
9523                 }
9524
9525                 advice.lla_start = start;
9526                 advice.lla_end = end;
9527                 advice.lla_advice = advice_type;
9528                 advice.lla_value1 = 0;
9529                 advice.lla_value2 = 0;
9530                 advice.lla_value3 = 0;
9531                 advice.lla_value4 = 0;
9532                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
9533                         advice.lla_lockahead_mode = mode;
9534                         advice.lla_peradvice_flags = flags;
9535                 }
9536
9537                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
9538                 close(fd);
9539                 if (rc2 < 0) {
9540                         fprintf(stderr,
9541                                 "%s: cannot give advice '%s' to file '%s': %s\n",
9542                                 argv[0], ladvise_names[advice_type],
9543                                 path, strerror(errno));
9544
9545                         goto next;
9546                 }
9547
9548 next:
9549                 if (rc == 0 && rc2 < 0)
9550                         rc = rc2;
9551         }
9552         return rc;
9553 }
9554
9555 static const char *const heat_names[] = LU_HEAT_NAMES;
9556
9557 static int lfs_heat_get(int argc, char **argv)
9558 {
9559         struct lu_heat *heat;
9560         int rc = 0, rc2;
9561         char *path;
9562         int fd;
9563         int i;
9564
9565         if (argc <= 1)
9566                 return CMD_HELP;
9567
9568         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
9569         if (!heat) {
9570                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
9571                 return -ENOMEM;
9572         }
9573
9574         optind = 1;
9575         while (optind < argc) {
9576                 path = argv[optind++];
9577
9578                 fd = open(path, O_RDONLY);
9579                 if (fd < 0) {
9580                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
9581                                 argv[0], path, strerror(errno));
9582                         rc2 = -errno;
9583                         goto next;
9584                 }
9585
9586                 heat->lh_count = OBD_HEAT_COUNT;
9587                 rc2 = llapi_heat_get(fd, heat);
9588                 close(fd);
9589                 if (rc2 < 0) {
9590                         fprintf(stderr,
9591                                 "%s: cannot get heat of file '%s': %s\n",
9592                                 argv[0], path, strerror(errno));
9593                         goto next;
9594                 }
9595
9596                 printf("flags: %x\n", heat->lh_flags);
9597                 for (i = 0; i < heat->lh_count; i++)
9598                         printf("%s: %llu\n", heat_names[i],
9599                                (unsigned long long)heat->lh_heat[i]);
9600 next:
9601                 if (rc == 0 && rc2 < 0)
9602                         rc = rc2;
9603         }
9604
9605         free(heat);
9606         return rc;
9607 }
9608
9609 static int lfs_heat_set(int argc, char **argv)
9610 {
9611         struct option long_opts[] = {
9612         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
9613         { .val = 'o',   .name = "off",          .has_arg = no_argument },
9614         { .val = 'O',   .name = "on",           .has_arg = no_argument },
9615         { .name = NULL } };
9616         enum lu_heat_flag flags = 0;
9617         int rc = 0, rc2;
9618         char *path;
9619         int fd;
9620         int c;
9621
9622         if (argc <= 1)
9623                 return CMD_HELP;
9624
9625         optind = 0;
9626         while ((c = getopt_long(argc, argv, "coO", long_opts, NULL)) != -1) {
9627                 switch (c) {
9628                 case 'c':
9629                         flags |= LU_HEAT_FLAG_CLEAR;
9630                         break;
9631                 case 'o':
9632                         flags |= LU_HEAT_FLAG_CLEAR;
9633                         flags |= LU_HEAT_FLAG_OFF;
9634                         break;
9635                 case 'O':
9636                         flags &= ~LU_HEAT_FLAG_OFF;
9637                         break;
9638                 case '?':
9639                         return CMD_HELP;
9640                 default:
9641                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9642                                 argv[0], argv[optind - 1]);
9643                         return CMD_HELP;
9644                 }
9645         }
9646
9647         if (argc <= optind) {
9648                 fprintf(stderr, "%s: please give one or more file names\n",
9649                         argv[0]);
9650                 return CMD_HELP;
9651         }
9652
9653         while (optind < argc) {
9654                 path = argv[optind++];
9655
9656                 fd = open(path, O_RDONLY);
9657                 if (fd < 0) {
9658                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
9659                                 argv[0], path, strerror(errno));
9660                         rc2 = -errno;
9661                         goto next;
9662                 }
9663
9664                 rc2 = llapi_heat_set(fd, flags);
9665                 close(fd);
9666                 if (rc2 < 0) {
9667                         fprintf(stderr,
9668                                 "%s: cannot setflags heat of file '%s': %s\n",
9669                                 argv[0], path, strerror(errno));
9670                         goto next;
9671                 }
9672 next:
9673                 if (rc == 0 && rc2 < 0)
9674                         rc = rc2;
9675         }
9676         return rc;
9677 }
9678
9679 /**
9680  * The input string contains a comma delimited list of component ids and
9681  * ranges, for example "1,2-4,7".
9682  */
9683 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
9684 {
9685         bool end_of_loop = false;
9686         char *ptr = NULL;
9687         int nr = 0;
9688         int rc;
9689
9690         if (!arg)
9691                 return -EINVAL;
9692
9693         while (!end_of_loop) {
9694                 int start_index;
9695                 int end_index;
9696                 int i;
9697                 char *endptr = NULL;
9698
9699                 rc = -EINVAL;
9700                 ptr = strchrnul(arg, ',');
9701                 end_of_loop = *ptr == '\0';
9702                 *ptr = '\0';
9703
9704                 start_index = strtol(arg, &endptr, 0);
9705                 if (endptr == arg) /* no data at all */
9706                         break;
9707                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
9708                         break;
9709                 if (start_index < 0)
9710                         break;
9711
9712                 end_index = start_index;
9713                 if (*endptr == '-') {
9714                         end_index = strtol(endptr + 1, &endptr, 0);
9715                         if (*endptr != '\0')
9716                                 break;
9717                         if (end_index < start_index)
9718                                 break;
9719                 }
9720
9721                 for (i = start_index; i <= end_index && size > 0; i++) {
9722                         int j;
9723
9724                         /* remove duplicate */
9725                         for (j = 0; j < nr; j++) {
9726                                 if (ids[j] == i)
9727                                         break;
9728                         }
9729                         if (j == nr) { /* no duplicate */
9730                                 ids[nr++] = i;
9731                                 --size;
9732                         }
9733                 }
9734
9735                 if (size == 0 && i < end_index)
9736                         break;
9737
9738                 *ptr = ',';
9739                 arg = ++ptr;
9740                 rc = 0;
9741         }
9742         if (!end_of_loop && ptr)
9743                 *ptr = ',';
9744
9745         return rc < 0 ? rc : nr;
9746 }
9747
9748 /**
9749  * struct verify_mirror_id - Mirror id to be verified.
9750  * @mirror_id:   A specified mirror id.
9751  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
9752  */
9753 struct verify_mirror_id {
9754         __u16 mirror_id;
9755         bool is_valid_id;
9756 };
9757
9758 /**
9759  * compare_mirror_ids() - Compare mirror ids.
9760  * @layout: Mirror component list.
9761  * @cbdata: Callback data in verify_mirror_id structure.
9762  *
9763  * This is a callback function called by llapi_layout_comp_iterate()
9764  * to compare the specified mirror id with the one in the current
9765  * component of @layout. If they are the same, then the specified
9766  * mirror id is valid.
9767  *
9768  * Return: a negative error code on failure or
9769  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
9770  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
9771  */
9772 static inline
9773 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
9774 {
9775         struct verify_mirror_id *mirror_id_cbdata =
9776                                  (struct verify_mirror_id *)cbdata;
9777         uint32_t mirror_id;
9778         int rc = 0;
9779
9780         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
9781         if (rc < 0) {
9782                 rc = -errno;
9783                 fprintf(stderr,
9784                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
9785                         progname, strerror(errno));
9786                 return rc;
9787         }
9788
9789         if (mirror_id_cbdata->mirror_id == mirror_id) {
9790                 mirror_id_cbdata->is_valid_id = true;
9791                 return LLAPI_LAYOUT_ITER_STOP;
9792         }
9793
9794         return LLAPI_LAYOUT_ITER_CONT;
9795 }
9796
9797 /**
9798  * verify_mirror_ids() - Verify specified mirror ids.
9799  * @fname:      Mirrored file name.
9800  * @mirror_ids: Specified mirror ids to be verified.
9801  * @ids_nr:     Number of specified mirror ids.
9802  *
9803  * This function verifies that specified @mirror_ids are valid
9804  * in the mirrored file @fname.
9805  *
9806  * Return: 0 on success or a negative error code on failure.
9807  */
9808 static inline
9809 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
9810 {
9811         struct llapi_layout *layout = NULL;
9812         struct verify_mirror_id mirror_id_cbdata = { 0 };
9813         struct stat stbuf;
9814         uint32_t flr_state;
9815         int i;
9816         int fd;
9817         int rc = 0;
9818         int rc2 = 0;
9819
9820         if (ids_nr <= 0)
9821                 return -EINVAL;
9822
9823         if (stat(fname, &stbuf) < 0) {
9824                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9825                         progname, fname, strerror(errno));
9826                 rc = -errno;
9827                 goto error;
9828         }
9829
9830         if (!S_ISREG(stbuf.st_mode)) {
9831                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9832                         progname, fname);
9833                 rc = -EINVAL;
9834                 goto error;
9835         }
9836
9837         fd = open(fname, O_DIRECT | O_RDONLY);
9838         if (fd < 0) {
9839                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9840                         progname, fname, strerror(errno));
9841                 rc = -errno;
9842                 goto error;
9843         }
9844
9845         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
9846         if (rc < 0) {
9847                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
9848                         progname, fname, strerror(errno));
9849                 goto close_fd;
9850         }
9851
9852         layout = llapi_layout_get_by_fd(fd, 0);
9853         if (!layout) {
9854                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9855                         progname, fname, strerror(errno));
9856                 rc = -errno;
9857                 llapi_lease_release(fd);
9858                 goto close_fd;
9859         }
9860
9861         rc = llapi_layout_flags_get(layout, &flr_state);
9862         if (rc < 0) {
9863                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9864                         progname, fname, strerror(errno));
9865                 rc = -errno;
9866                 goto free_layout;
9867         }
9868
9869         flr_state &= LCM_FL_FLR_MASK;
9870         switch (flr_state) {
9871         case LCM_FL_NONE:
9872                 rc = -EINVAL;
9873                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
9874                         progname, fname, llapi_layout_flags_string(flr_state));
9875                 goto free_layout;
9876         default:
9877                 break;
9878         }
9879
9880         rc2 = 0;
9881         for (i = 0; i < ids_nr; i++) {
9882                 mirror_id_cbdata.mirror_id = mirror_ids[i];
9883                 mirror_id_cbdata.is_valid_id = false;
9884
9885                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
9886                                                &mirror_id_cbdata);
9887                 if (rc < 0) {
9888                         rc = -errno;
9889                         fprintf(stderr,
9890                                 "%s: '%s' failed to verify mirror id: %u.\n",
9891                                 progname, fname, mirror_ids[i]);
9892                         goto free_layout;
9893                 }
9894
9895                 if (!mirror_id_cbdata.is_valid_id) {
9896                         rc2 = -EINVAL;
9897                         fprintf(stderr,
9898                                 "%s: '%s' invalid specified mirror id: %u.\n",
9899                                 progname, fname, mirror_ids[i]);
9900                 }
9901         }
9902         rc = rc2;
9903
9904 free_layout:
9905         llapi_layout_free(layout);
9906         llapi_lease_release(fd);
9907 close_fd:
9908         close(fd);
9909 error:
9910         return rc;
9911 }
9912
9913 static inline
9914 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
9915                            __u16 *mirror_ids, int ids_nr)
9916 {
9917         struct llapi_resync_comp comp_array[1024] = { { 0 } };
9918         struct llapi_layout *layout;
9919         struct stat stbuf;
9920         uint32_t flr_state;
9921         uint64_t start;
9922         uint64_t end;
9923         int comp_size = 0;
9924         int idx;
9925         int fd;
9926         int rc;
9927         int rc2;
9928
9929         if (stat(fname, &stbuf) < 0) {
9930                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9931                         progname, fname, strerror(errno));
9932                 rc = -errno;
9933                 goto error;
9934         }
9935         if (!S_ISREG(stbuf.st_mode)) {
9936                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9937                         progname, fname);
9938                 rc = -EINVAL;
9939                 goto error;
9940         }
9941
9942         fd = open(fname, O_DIRECT | O_RDWR);
9943         if (fd < 0) {
9944                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9945                         progname, fname, strerror(errno));
9946                 rc = -errno;
9947                 goto error;
9948         }
9949
9950         layout = llapi_layout_get_by_fd(fd, 0);
9951         if (!layout) {
9952                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9953                         progname, fname, strerror(errno));
9954                 rc = -errno;
9955                 goto close_fd;
9956         }
9957
9958         rc = llapi_layout_flags_get(layout, &flr_state);
9959         if (rc) {
9960                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9961                         progname, fname, strerror(errno));
9962                 rc = -errno;
9963                 goto free_layout;
9964         }
9965
9966         flr_state &= LCM_FL_FLR_MASK;
9967         if (flr_state == LCM_FL_NONE) {
9968                 rc = -EINVAL;
9969                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
9970                         progname, fname);
9971                 goto free_layout;
9972         }
9973
9974         /* get stale component info */
9975         comp_size = llapi_mirror_find_stale(layout, comp_array,
9976                                             ARRAY_SIZE(comp_array),
9977                                             mirror_ids, ids_nr);
9978         if (comp_size <= 0) {
9979                 rc = comp_size;
9980                 goto free_layout;
9981         }
9982
9983         ioc->lil_mode = LL_LEASE_WRLCK;
9984         ioc->lil_flags = LL_LEASE_RESYNC;
9985         rc = llapi_lease_set(fd, ioc);
9986         if (rc < 0) {
9987                 if (rc == -EALREADY)
9988                         rc = 0;
9989                 else
9990                         fprintf(stderr,
9991                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
9992                                 progname, fname, strerror(-rc));
9993                 goto free_layout;
9994         }
9995
9996         /* get the read range [start, end) */
9997         start = comp_array[0].lrc_start;
9998         end = comp_array[0].lrc_end;
9999         for (idx = 1; idx < comp_size; idx++) {
10000                 if (comp_array[idx].lrc_start < start)
10001                         start = comp_array[idx].lrc_start;
10002                 if (end < comp_array[idx].lrc_end)
10003                         end = comp_array[idx].lrc_end;
10004         }
10005
10006         rc = llapi_lease_check(fd);
10007         if (rc != LL_LEASE_WRLCK) {
10008                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
10009                         progname, fname);
10010                 goto free_layout;
10011         }
10012
10013         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
10014                                       start, end);
10015         if (rc < 0)
10016                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %s.\n",
10017                         progname, fname, strerror(-rc));
10018
10019         /* need to do the lease unlock even resync fails */
10020         ioc->lil_mode = LL_LEASE_UNLCK;
10021         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10022         ioc->lil_count = 0;
10023         for (idx = 0; idx < comp_size; idx++) {
10024                 if (comp_array[idx].lrc_synced) {
10025                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
10026                         ioc->lil_count++;
10027                 }
10028         }
10029
10030         rc2 = llapi_lease_set(fd, ioc);
10031         /**
10032          * llapi_lease_set returns lease mode when it request to unlock
10033          * the lease lock.
10034          */
10035         if (rc2 <= 0) {
10036                 /* rc2 == 0 means lost lease lock */
10037                 if (rc2 == 0 && rc == 0)
10038                         rc = -EBUSY;
10039                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
10040                         progname, fname,
10041                         rc2 == 0 ? "lost lease lock" : strerror(-rc2));
10042         }
10043
10044 free_layout:
10045         llapi_layout_free(layout);
10046 close_fd:
10047         close(fd);
10048 error:
10049         return rc;
10050 }
10051
10052 static inline int lfs_mirror_resync(int argc, char **argv)
10053 {
10054         struct ll_ioc_lease *ioc = NULL;
10055         __u16 mirror_ids[128] = { 0 };
10056         int ids_nr = 0;
10057         int c;
10058         int rc = 0;
10059
10060         struct option long_opts[] = {
10061         { .val = 'o',   .name = "only",         .has_arg = required_argument },
10062         { .name = NULL } };
10063
10064         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
10065                 switch (c) {
10066                 case 'o':
10067                         rc = parse_mirror_ids(mirror_ids,
10068                                         sizeof(mirror_ids) / sizeof(__u16),
10069                                         optarg);
10070                         if (rc < 0) {
10071                                 fprintf(stderr,
10072                                         "%s: bad mirror ids '%s'.\n",
10073                                         argv[0], optarg);
10074                                 goto error;
10075                         }
10076                         ids_nr = rc;
10077                         break;
10078                 default:
10079                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
10080                                 argv[0], argv[optind - 1]);
10081                         rc = -EINVAL;
10082                         goto error;
10083                 }
10084         }
10085
10086         if (argc == optind) {
10087                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
10088                 rc = CMD_HELP;
10089                 goto error;
10090         }
10091
10092         if (ids_nr > 0 && argc > optind + 1) {
10093                 fprintf(stderr,
10094                     "%s: option '--only' cannot be used upon multiple files.\n",
10095                         argv[0]);
10096                 rc = CMD_HELP;
10097                 goto error;
10098         }
10099
10100         if (ids_nr > 0) {
10101                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
10102                 if (rc < 0)
10103                         goto error;
10104         }
10105
10106         /* set the lease on the file */
10107         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
10108         if (!ioc) {
10109                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
10110                         argv[0], strerror(errno));
10111                 rc = -errno;
10112                 goto error;
10113         }
10114
10115         for (; optind < argc; optind++) {
10116                 rc = lfs_mirror_resync_file(argv[optind], ioc,
10117                                             mirror_ids, ids_nr);
10118                 /* ignore previous file's error, continue with next file */
10119
10120                 /* reset ioc */
10121                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
10122         }
10123
10124         free(ioc);
10125 error:
10126         return rc;
10127 }
10128
10129 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
10130 {
10131         struct llapi_layout *layout;
10132         int rc;
10133
10134         layout = llapi_layout_get_by_fd(fd, 0);
10135         if (!layout) {
10136                 fprintf(stderr, "could not get layout.\n");
10137                 return  -EINVAL;
10138         }
10139
10140         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
10141         if (rc < 0) {
10142                 fprintf(stderr, "failed to iterate layout\n");
10143                 llapi_layout_free(layout);
10144
10145                 return rc;
10146         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
10147                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
10148                 llapi_layout_free(layout);
10149
10150                 return -EINVAL;
10151         }
10152         llapi_layout_free(layout);
10153
10154         return 0;
10155 }
10156
10157 /**
10158  * Check whether two files are the same file
10159  * \retval      0  same file
10160  * \retval      1  not the same file
10161  * \retval      <0 error code
10162  */
10163 static inline int check_same_file(int fd, const char *f2)
10164 {
10165         struct stat stbuf1;
10166         struct stat stbuf2;
10167
10168         if (fstat(fd, &stbuf1) < 0)
10169                 return -errno;
10170
10171         if (stat(f2, &stbuf2) < 0)
10172                 return 1;
10173
10174         if (stbuf1.st_rdev == stbuf2.st_rdev &&
10175             stbuf1.st_ino == stbuf2.st_ino)
10176                 return 0;
10177
10178         return 1;
10179 }
10180
10181 static inline int lfs_mirror_read(int argc, char **argv)
10182 {
10183         int rc = CMD_HELP;
10184         __u16 mirror_id = 0;
10185         const char *outfile = NULL;
10186         char *fname;
10187         int fd = 0;
10188         int outfd;
10189         int c;
10190         void *buf;
10191         const size_t buflen = 4 << 20;
10192         off_t pos;
10193         struct option long_opts[] = {
10194         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
10195         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
10196         { .name = NULL } };
10197
10198         while ((c = getopt_long(argc, argv, "N:o:", long_opts, NULL)) >= 0) {
10199                 char *end;
10200
10201                 switch (c) {
10202                 case 'N': {
10203                         unsigned long int id;
10204
10205                         errno = 0;
10206                         id = strtoul(optarg, &end, 0);
10207                         if (errno != 0 || *end != '\0' || id == 0 ||
10208                             id > UINT16_MAX) {
10209                                 fprintf(stderr,
10210                                         "%s %s: invalid mirror ID '%s'\n",
10211                                         progname, argv[0], optarg);
10212                                 return rc;
10213                         }
10214
10215                         mirror_id = (__u16)id;
10216                         break;
10217                 }
10218                 case 'o':
10219                         outfile = optarg;
10220                         break;
10221                 default:
10222                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
10223                                 progname, argv[optind - 1]);
10224                         return -EINVAL;
10225                 }
10226         }
10227
10228         if (argc == optind) {
10229                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10230                         progname, argv[0]);
10231                 return rc;
10232         } else if (argc > optind + 1) {
10233                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10234                 return rc;
10235         }
10236
10237         if (mirror_id == 0) {
10238                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
10239                         progname, argv[0]);
10240                 return rc;
10241         }
10242
10243         /* open mirror file */
10244         fname = argv[optind];
10245         fd = open(fname, O_DIRECT | O_RDONLY);
10246         if (fd < 0) {
10247                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
10248                         progname, argv[0], fname, strerror(errno));
10249                 return rc;
10250         }
10251
10252         /* verify mirror id */
10253         rc = verify_mirror_id_by_fd(fd, mirror_id);
10254         if (rc) {
10255                 fprintf(stderr,
10256                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10257                         progname, argv[0], mirror_id, fname);
10258                 goto close_fd;
10259         }
10260
10261         /* open output file - O_EXCL ensures output is not the same as input */
10262         if (outfile) {
10263                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
10264                 if (outfd < 0) {
10265                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
10266                                 progname, argv[0], outfile, strerror(errno));
10267                         rc = -errno;
10268                         goto close_fd;
10269                 }
10270         } else {
10271                 outfd = STDOUT_FILENO;
10272         }
10273
10274         /* allocate buffer */
10275         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
10276         if (rc) {
10277                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
10278                                 progname, argv[0], rc);
10279                 goto close_outfd;
10280         }
10281
10282         pos = 0;
10283         while (1) {
10284                 ssize_t bytes_read;
10285                 ssize_t written = 0;
10286
10287                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
10288                 if (bytes_read < 0) {
10289                         rc = bytes_read;
10290                         fprintf(stderr,
10291                                 "%s %s: fail to read data from mirror %u: %s\n",
10292                                 progname, argv[0], mirror_id, strerror(-rc));
10293                         goto free_buf;
10294                 }
10295
10296                 /* EOF reached */
10297                 if (bytes_read == 0)
10298                         break;
10299
10300                 while (written < bytes_read) {
10301                         ssize_t written2;
10302
10303                         written2 = write(outfd, buf + written,
10304                                          bytes_read - written);
10305                         if (written2 < 0) {
10306                                 fprintf(stderr,
10307                                         "%s %s: fail to write %s: %s\n",
10308                                         progname, argv[0], outfile ? : "STDOUT",
10309                                         strerror(errno));
10310                                 rc = -errno;
10311                                 goto free_buf;
10312                         }
10313                         written += written2;
10314                 }
10315
10316                 if (written != bytes_read) {
10317                         fprintf(stderr,
10318                 "%s %s: written %ld bytes does not match with %ld read.\n",
10319                                 progname, argv[0], written, bytes_read);
10320                         rc = -EIO;
10321                         goto free_buf;
10322                 }
10323
10324                 pos += bytes_read;
10325         }
10326
10327         fsync(outfd);
10328         rc = 0;
10329
10330 free_buf:
10331         free(buf);
10332 close_outfd:
10333         if (outfile)
10334                 close(outfd);
10335 close_fd:
10336         close(fd);
10337
10338         return rc;
10339 }
10340
10341 static inline int lfs_mirror_write(int argc, char **argv)
10342 {
10343         int rc = CMD_HELP;
10344         __u16 mirror_id = 0;
10345         const char *inputfile = NULL;
10346         char *fname;
10347         int fd = 0;
10348         int inputfd;
10349         int c;
10350         void *buf;
10351         const size_t buflen = 4 << 20;
10352         off_t pos;
10353         size_t page_size = sysconf(_SC_PAGESIZE);
10354         struct ll_ioc_lease_id ioc;
10355
10356         struct option long_opts[] = {
10357         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
10358         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
10359         { .name = NULL } };
10360
10361         while ((c = getopt_long(argc, argv, "N:i:", long_opts, NULL)) >= 0) {
10362                 char *end;
10363
10364                 switch (c) {
10365                 case 'N': {
10366                         unsigned long int id;
10367
10368                         errno = 0;
10369                         id = strtoul(optarg, &end, 0);
10370                         if (errno != 0 || *end != '\0' || id == 0 ||
10371                             id > UINT16_MAX) {
10372                                 fprintf(stderr,
10373                                         "%s %s: invalid mirror ID '%s'\n",
10374                                         progname, argv[0], optarg);
10375                                 return rc;
10376                         }
10377
10378                         mirror_id = (__u16)id;
10379                         break;
10380                 }
10381                 case 'i':
10382                         inputfile = optarg;
10383                         break;
10384                 default:
10385                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10386                                 progname, argv[optind - 1]);
10387                         return -EINVAL;
10388                 }
10389         }
10390
10391         if (argc == optind) {
10392                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10393                         progname, argv[0]);
10394                 return rc;
10395         } else if (argc > optind + 1) {
10396                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10397                 return rc;
10398         }
10399
10400         if (mirror_id == 0) {
10401                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
10402                         progname, argv[0]);
10403                 return rc;
10404         }
10405
10406         /* open mirror file */
10407         fname = argv[optind];
10408         fd = open(fname, O_DIRECT | O_WRONLY);
10409         if (fd < 0) {
10410                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
10411                         progname, argv[0], fname, strerror(errno));
10412                 return rc;
10413         }
10414
10415         /* verify mirror id */
10416         rc = verify_mirror_id_by_fd(fd, mirror_id);
10417         if (rc) {
10418                 fprintf(stderr,
10419                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10420                         progname, argv[0], mirror_id, fname);
10421                 goto close_fd;
10422         }
10423
10424         /* open input file */
10425         if (inputfile) {
10426                 rc = check_same_file(fd, inputfile);
10427                 if (rc == 0) {
10428                         fprintf(stderr,
10429                         "%s %s: input file cannot be the mirrored file\n",
10430                                 progname, argv[0]);
10431                         goto close_fd;
10432                 }
10433                 if (rc < 0)
10434                         goto close_fd;
10435
10436                 inputfd = open(inputfile, O_RDONLY, 0644);
10437                 if (inputfd < 0) {
10438                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
10439                                 progname, argv[0], inputfile, strerror(errno));
10440                         rc = -errno;
10441                         goto close_fd;
10442                 }
10443         } else {
10444                 inputfd = STDIN_FILENO;
10445         }
10446
10447         /* allocate buffer */
10448         rc = posix_memalign(&buf, page_size, buflen);
10449         if (rc) {
10450                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
10451                         progname, argv[0], rc);
10452                 goto close_inputfd;
10453         }
10454
10455         /* prepare target mirror components instantiation */
10456         ioc.lil_mode = LL_LEASE_WRLCK;
10457         ioc.lil_flags = LL_LEASE_RESYNC;
10458         ioc.lil_mirror_id = mirror_id;
10459         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
10460         if (rc < 0) {
10461                 fprintf(stderr,
10462                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
10463                         progname, argv[0], fname, strerror(errno));
10464                 goto free_buf;
10465         }
10466
10467         pos = 0;
10468         while (1) {
10469                 ssize_t bytes_read;
10470                 ssize_t written;
10471                 size_t to_write;
10472
10473                 rc = llapi_lease_check(fd);
10474                 if (rc != LL_LEASE_WRLCK) {
10475                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
10476                                 progname, argv[0], fname);
10477                         goto free_buf;
10478                 }
10479
10480                 bytes_read = read(inputfd, buf, buflen);
10481                 if (bytes_read < 0) {
10482                         rc = bytes_read;
10483                         fprintf(stderr,
10484                                 "%s %s: fail to read data from '%s': %s\n",
10485                                 progname, argv[0], inputfile ? : "STDIN",
10486                                 strerror(errno));
10487                         rc = -errno;
10488                         goto free_buf;
10489                 }
10490
10491                 /* EOF reached */
10492                 if (bytes_read == 0)
10493                         break;
10494
10495                 /* round up to page align to make direct IO happy. */
10496                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
10497
10498                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
10499                                              pos);
10500                 if (written < 0) {
10501                         rc = written;
10502                         fprintf(stderr,
10503                               "%s %s: fail to write to mirror %u: %s\n",
10504                                 progname, argv[0], mirror_id,
10505                                 strerror(-rc));
10506                         goto free_buf;
10507                 }
10508
10509                 pos += bytes_read;
10510         }
10511
10512         if (pos & (page_size - 1)) {
10513                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
10514                 if (rc < 0)
10515                         goto free_buf;
10516         }
10517
10518         ioc.lil_mode = LL_LEASE_UNLCK;
10519         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
10520         ioc.lil_count = 0;
10521         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
10522         if (rc <= 0) {
10523                 if (rc == 0)
10524                         rc = -EBUSY;
10525                 fprintf(stderr,
10526                         "%s %s: release lease lock of '%s' failed: %s\n",
10527                         progname, argv[0], fname, strerror(errno));
10528                 goto free_buf;
10529         }
10530
10531         rc = 0;
10532
10533 free_buf:
10534         free(buf);
10535 close_inputfd:
10536         if (inputfile)
10537                 close(inputfd);
10538 close_fd:
10539         close(fd);
10540
10541         return rc;
10542 }
10543
10544 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
10545 {
10546         struct llapi_layout *layout;
10547         struct collect_ids_data cid = { .cid_ids = ids,
10548                                         .cid_count = 0,
10549                                         .cid_exclude = exclude_id, };
10550         int rc;
10551
10552         layout = llapi_layout_get_by_fd(fd, 0);
10553         if (!layout) {
10554                 fprintf(stderr, "could not get layout\n");
10555                 return -EINVAL;
10556         }
10557
10558         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
10559         if (rc < 0) {
10560                 fprintf(stderr, "failed to iterate layout\n");
10561                 llapi_layout_free(layout);
10562
10563                 return rc;
10564         }
10565         llapi_layout_free(layout);
10566
10567         return cid.cid_count;
10568 }
10569
10570 static inline int lfs_mirror_copy(int argc, char **argv)
10571 {
10572         int rc = CMD_HELP;
10573         __u16 read_mirror_id = 0;
10574         __u16 ids[128] = { 0 };
10575         int count = 0;
10576         struct llapi_layout *layout = NULL;
10577         struct llapi_resync_comp comp_array[1024] = { { 0 } };
10578         int comp_size = 0;
10579         char *fname;
10580         int fd = 0;
10581         int c;
10582         int i;
10583         ssize_t copied;
10584         struct ll_ioc_lease *ioc = NULL;
10585         struct ll_ioc_lease_id *resync_ioc;
10586
10587         struct option long_opts[] = {
10588         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
10589         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
10590         { .name = NULL } };
10591
10592         while ((c = getopt_long(argc, argv, "i:o:", long_opts, NULL)) >= 0) {
10593                 char *end;
10594
10595                 switch (c) {
10596                 case 'i': {
10597                         unsigned long int id;
10598
10599                         errno = 0;
10600                         id = strtoul(optarg, &end, 0);
10601                         if (errno != 0 || *end != '\0' || id == 0 ||
10602                             id > UINT16_MAX) {
10603                                 fprintf(stderr,
10604                                         "%s %s: invalid read mirror ID '%s'\n",
10605                                         progname, argv[0], optarg);
10606                                 return rc;
10607                         }
10608
10609                         read_mirror_id = (__u16)id;
10610                         break;
10611                 }
10612                 case 'o':
10613                         if (!strcmp(optarg, "-1")) {
10614                                 /* specify all other mirrors */
10615                                 ids[0] = (__u16)-1;
10616                                 count = 1;
10617                         } else {
10618                                 count = parse_mirror_ids((__u16 *)ids,
10619                                                          ARRAY_SIZE(ids),
10620                                                          optarg);
10621                                 if (count < 0)
10622                                         return rc;
10623                         }
10624                         break;
10625                 default:
10626                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10627                                 progname, argv[optind - 1]);
10628                         return -EINVAL;
10629                 }
10630         }
10631
10632         if (argc == optind) {
10633                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10634                         progname, argv[0]);
10635                 return rc;
10636         } else if (argc > optind + 1) {
10637                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10638                 return rc;
10639         }
10640
10641         if (read_mirror_id == 0) {
10642                 fprintf(stderr,
10643                         "%s %s: no valid read mirror ID %d is provided\n",
10644                         progname, argv[0], read_mirror_id);
10645                 return rc;
10646         }
10647
10648         if (count == 0) {
10649                 fprintf(stderr,
10650                         "%s %s: no write mirror ID is provided\n",
10651                         progname, argv[0]);
10652                 return rc;
10653         }
10654
10655         for (i = 0; i < count; i++) {
10656                 if (read_mirror_id == ids[i]) {
10657                         fprintf(stderr,
10658                         "%s %s: read and write mirror ID cannot be the same\n",
10659                                 progname, argv[0]);
10660                         return rc;
10661                 }
10662         }
10663
10664         /* open mirror file */
10665         fname = argv[optind];
10666
10667         fd = open(fname, O_DIRECT | O_RDWR);
10668         if (fd < 0) {
10669                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
10670                         progname, argv[0], fname, strerror(errno));
10671                 return rc;
10672         }
10673
10674         /* write to all other mirrors */
10675         if (ids[0] == (__u16)-1) {
10676                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
10677                 if (count <= 0) {
10678                         rc = count;
10679                         fprintf(stderr,
10680                         "%s %s: failed to get other mirror ids in '%s': %d\n",
10681                                 progname, argv[0], fname, rc);
10682                         goto close_fd;
10683                 }
10684         }
10685
10686         /* verify mirror id */
10687         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
10688         if (rc) {
10689                 fprintf(stderr,
10690                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10691                         progname, argv[0], read_mirror_id, fname);
10692                 goto close_fd;
10693         }
10694
10695         for (i = 0; i < count; i++) {
10696                 rc = verify_mirror_id_by_fd(fd, ids[i]);
10697                 if (rc) {
10698                         fprintf(stderr,
10699                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10700                                 progname, argv[0], ids[i], fname);
10701                         goto close_fd;
10702                 }
10703         }
10704
10705         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
10706         if (!ioc) {
10707                 fprintf(stderr,
10708                         "%s %s: cannot alloc comp id array for ioc: %s\n",
10709                         progname, argv[0], strerror(errno));
10710                 rc = -errno;
10711                 goto close_fd;
10712         }
10713
10714         /* get stale component info */
10715         layout = llapi_layout_get_by_fd(fd, 0);
10716         if (!layout) {
10717                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
10718                         progname, argv[0], fname, strerror(errno));
10719                 rc = -errno;
10720                 goto free_ioc;
10721         }
10722         comp_size = llapi_mirror_find_stale(layout, comp_array,
10723                                             ARRAY_SIZE(comp_array),
10724                                             ids, count);
10725         llapi_layout_free(layout);
10726         if (comp_size < 0) {
10727                 rc = comp_size;
10728                 goto free_ioc;
10729         }
10730
10731         /* prepare target mirror components instantiation */
10732         resync_ioc = (struct ll_ioc_lease_id *)ioc;
10733         resync_ioc->lil_mode = LL_LEASE_WRLCK;
10734         resync_ioc->lil_flags = LL_LEASE_RESYNC;
10735         if (count == 1)
10736                 resync_ioc->lil_mirror_id = ids[0];
10737         else
10738                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
10739         rc = llapi_lease_set(fd, ioc);
10740         if (rc < 0) {
10741                 fprintf(stderr,
10742                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
10743                         progname, argv[0], fname, strerror(errno));
10744                 goto free_ioc;
10745         }
10746
10747         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
10748         if (copied < 0) {
10749                 rc = copied;
10750                 fprintf(stderr, "%s %s: copy error: %d\n",
10751                         progname, argv[0], rc);
10752                 goto free_ioc;
10753         }
10754
10755         fprintf(stdout, "mirror copied successfully: ");
10756         for (i = 0; i < copied; i++)
10757                 fprintf(stdout, "%d ", ids[i]);
10758         fprintf(stdout, "\n");
10759
10760         ioc->lil_mode = LL_LEASE_UNLCK;
10761         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10762         ioc->lil_count = 0;
10763         for (i = 0; i < comp_size; i++) {
10764                 int j;
10765
10766                 for (j = 0; j < copied; j++) {
10767                         if (comp_array[i].lrc_mirror_id != ids[j])
10768                                 continue;
10769
10770                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
10771                         ioc->lil_count++;
10772                 }
10773         }
10774         rc = llapi_lease_set(fd, ioc);
10775         if (rc <= 0) {
10776                 if (rc == 0)
10777                         rc = -EBUSY;
10778                 fprintf(stderr,
10779                         "%s %s: release lease lock of '%s' failed: %s\n",
10780                         progname, argv[0], fname, strerror(errno));
10781                 goto free_ioc;
10782         }
10783
10784         rc = 0;
10785
10786 free_ioc:
10787         free(ioc);
10788 close_fd:
10789         close(fd);
10790
10791         return rc;
10792 }
10793
10794 /**
10795  * struct verify_chunk - Mirror chunk to be verified.
10796  * @chunk:        [start, end) of the chunk.
10797  * @mirror_count: Number of mirror ids in @mirror_id array.
10798  * @mirror_id:    Array of valid mirror ids that cover the chunk.
10799  */
10800 struct verify_chunk {
10801         struct lu_extent chunk;
10802         unsigned int mirror_count;
10803         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
10804 };
10805
10806 /**
10807  * print_chunks() - Print chunk information.
10808  * @fname:       Mirrored file name.
10809  * @chunks:      Array of chunks.
10810  * @chunk_count: Number of chunks in @chunks array.
10811  *
10812  * This function prints [start, end) of each chunk in @chunks
10813  * for mirrored file @fname, and also prints the valid mirror ids
10814  * that cover the chunk.
10815  *
10816  * Return: void.
10817  */
10818 static inline
10819 void print_chunks(const char *fname, struct verify_chunk *chunks,
10820                   int chunk_count)
10821 {
10822         int i;
10823         int j;
10824
10825         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
10826         for (i = 0; i < chunk_count; i++) {
10827                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
10828
10829                 if (chunks[i].mirror_count == 0)
10830                         fprintf(stdout, "\t[");
10831                 else {
10832                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
10833                         for (j = 1; j < chunks[i].mirror_count; j++)
10834                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
10835                 }
10836                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
10837         }
10838         fprintf(stdout, "\n");
10839 }
10840
10841 /**
10842  * print_checksums() - Print CRC-32 checksum values.
10843  * @chunk: A chunk and its corresponding valid mirror ids.
10844  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
10845  *
10846  * This function prints CRC-32 checksum values on @chunk for
10847  * each valid mirror that covers it.
10848  *
10849  * Return: void.
10850  */
10851 static inline
10852 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
10853 {
10854         int i;
10855
10856         fprintf(stdout,
10857                 "CRC-32 checksum value for chunk "DEXT":\n",
10858                 PEXT(&chunk->chunk));
10859         for (i = 0; i < chunk->mirror_count; i++)
10860                 fprintf(stdout, "Mirror %u:\t%#lx\n",
10861                         chunk->mirror_id[i], crc[i]);
10862         fprintf(stdout, "\n");
10863 }
10864
10865 /**
10866  * filter_mirror_id() - Filter specified mirror ids.
10867  * @chunks:      Array of chunks.
10868  * @chunk_count: Number of chunks in @chunks array.
10869  * @mirror_ids:  Specified mirror ids to be verified.
10870  * @ids_nr:      Number of specified mirror ids.
10871  *
10872  * This function scans valid mirror ids that cover each chunk in @chunks
10873  * and filters specified mirror ids.
10874  *
10875  * Return: void.
10876  */
10877 static inline
10878 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
10879                       __u16 *mirror_ids, int ids_nr)
10880 {
10881         int i;
10882         int j;
10883         int k;
10884         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10885         unsigned int valid_count = 0;
10886
10887         for (i = 0; i < chunk_count; i++) {
10888                 if (chunks[i].mirror_count == 0)
10889                         continue;
10890
10891                 valid_count = 0;
10892                 for (j = 0; j < ids_nr; j++) {
10893                         for (k = 0; k < chunks[i].mirror_count; k++) {
10894                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
10895                                         valid_id[valid_count] = mirror_ids[j];
10896                                         valid_count++;
10897                                         break;
10898                                 }
10899                         }
10900                 }
10901
10902                 memcpy(chunks[i].mirror_id, valid_id,
10903                        sizeof(__u16) * valid_count);
10904                 chunks[i].mirror_count = valid_count;
10905         }
10906 }
10907
10908 /**
10909  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
10910  * @layout:      Mirror component list.
10911  * @chunks:      Array of chunks.
10912  * @chunks_size: Array size of @chunks.
10913  *
10914  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
10915  * to find out chunk segments and store them in @chunks array.
10916  *
10917  * The @mirror_id array in each element of @chunks will store the valid
10918  * mirror ids that cover the chunk. If a mirror component covering the
10919  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
10920  * will not be stored into the @mirror_id array, and the chunk for that
10921  * mirror will not be verified.
10922  *
10923  * The @mirror_count in each element of @chunks will store the number of
10924  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
10925  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
10926  * indicates the chunk is valid in only one mirror. In both cases, the
10927  * chunk will not be verified.
10928  *
10929  * Here is an example:
10930  *
10931  *  0      1M     2M     3M     4M           EOF
10932  *  +------+-------------+--------------------+
10933  *  |      |             |      S             |       mirror1
10934  *  +------+------+------+------+-------------+
10935  *  |             |   S  |   S  |             |       mirror2
10936  *  +-------------+------+------+-------------+
10937  *
10938  * prepared @chunks array will contain 5 elements:
10939  * (([0, 1M), [1, 2], 2),
10940  *  ([1M, 2M), [1, 2], 2),
10941  *  ([2M, 3M), [1], 1),
10942  *  ([3M, 4M], [], 0),
10943  *  ([4M, EOF), [2], 1))
10944  *
10945  * Return: the actual array size of @chunks on success
10946  *         or a negative error code on failure.
10947  */
10948 static inline
10949 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
10950                              struct verify_chunk *chunks,
10951                              size_t chunks_size)
10952 {
10953         uint64_t start;
10954         uint64_t end;
10955         uint32_t mirror_id;
10956         uint32_t flags;
10957         int idx = 0;
10958         int i = 0;
10959         int rc = 0;
10960
10961         memset(chunks, 0, sizeof(*chunks) * chunks_size);
10962
10963         while (1) {
10964                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
10965                 if (rc < 0) {
10966                         fprintf(stderr,
10967                                 "%s: move to the first layout component: %s.\n",
10968                                 progname, strerror(errno));
10969                         goto error;
10970                 }
10971
10972                 i = 0;
10973                 rc = 0;
10974                 chunks[idx].chunk.e_end = LUSTRE_EOF;
10975                 while (rc == 0) {
10976                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
10977                         if (rc < 0) {
10978                                 fprintf(stderr,
10979                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
10980                                         progname, strerror(errno));
10981                                 goto error;
10982                         }
10983
10984                         if (start > chunks[idx].chunk.e_start ||
10985                             end <= chunks[idx].chunk.e_start)
10986                                 goto next;
10987
10988                         if (end < chunks[idx].chunk.e_end)
10989                                 chunks[idx].chunk.e_end = end;
10990
10991                         rc = llapi_layout_comp_flags_get(layout, &flags);
10992                         if (rc < 0) {
10993                                 fprintf(stderr,
10994                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
10995                                         progname, strerror(errno));
10996                                 goto error;
10997                         }
10998
10999                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
11000                                 goto next;
11001
11002                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
11003                         if (rc < 0) {
11004                                 fprintf(stderr,
11005                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
11006                                         progname, strerror(errno));
11007                                 goto error;
11008                         }
11009
11010                         chunks[idx].mirror_id[i] = mirror_id;
11011                         i++;
11012                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
11013                                 fprintf(stderr,
11014                                         "%s: mirror_id array is too small.\n",
11015                                         progname);
11016                                 rc = -EINVAL;
11017                                 goto error;
11018                         }
11019
11020 next:
11021                         rc = llapi_layout_comp_use(layout,
11022                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
11023                         if (rc < 0) {
11024                                 fprintf(stderr,
11025                                         "%s: move to the next layout component: %s.\n",
11026                                         progname, strerror(errno));
11027                                 goto error;
11028                         }
11029                 } /* loop through all components */
11030
11031                 chunks[idx].mirror_count = i;
11032
11033                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
11034                         break;
11035
11036                 idx++;
11037                 if (idx >= chunks_size) {
11038                         fprintf(stderr, "%s: chunks array is too small.\n",
11039                                 progname);
11040                         rc = -EINVAL;
11041                         goto error;
11042                 }
11043
11044                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
11045         }
11046
11047 error:
11048         return rc < 0 ? rc : idx + 1;
11049 }
11050
11051 /**
11052  * lfs_mirror_verify_chunk() - Verify a chunk.
11053  * @fd:        File descriptor of the mirrored file.
11054  * @file_size: Size of the mirrored file.
11055  * @chunk:     A chunk and its corresponding valid mirror ids.
11056  * @verbose:   Verbose mode.
11057  *
11058  * This function verifies a @chunk contains exactly the same data
11059  * ammong the mirrors that cover it.
11060  *
11061  * If @verbose is specified, then the function will print where the
11062  * differences are if the data do not match. Otherwise, it will
11063  * just return an error in that case.
11064  *
11065  * Return: 0 on success or a negative error code on failure.
11066  */
11067 static inline
11068 int lfs_mirror_verify_chunk(int fd, size_t file_size,
11069                             struct verify_chunk *chunk, int verbose)
11070 {
11071         const size_t buflen = 4 * 1024 * 1024; /* 4M */
11072         void *buf;
11073         size_t page_size = sysconf(_SC_PAGESIZE);
11074         ssize_t bytes_read;
11075         ssize_t bytes_done;
11076         size_t count;
11077         off_t pos;
11078         unsigned long crc;
11079         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11080         int i;
11081         int rc = 0;
11082
11083         if (file_size == 0)
11084                 return 0;
11085
11086         rc = posix_memalign(&buf, page_size, buflen);
11087         if (rc) /* error code is returned directly */
11088                 return -rc;
11089
11090         if (verbose > 1) {
11091                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11092                         PEXT(&chunk->chunk));
11093                 for (i = 0; i < chunk->mirror_count; i++)
11094                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11095                 fprintf(stdout, "\n");
11096         }
11097
11098         bytes_done = 0;
11099         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
11100         pos = chunk->chunk.e_start;
11101         while (bytes_done < count) {
11102                 /* compute initial CRC-32 checksum */
11103                 crc = crc32(0L, Z_NULL, 0);
11104                 memset(crc_array, 0, sizeof(crc_array));
11105
11106                 bytes_read = 0;
11107                 for (i = 0; i < chunk->mirror_count; i++) {
11108                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
11109                                                        buf, buflen, pos);
11110                         if (bytes_read < 0) {
11111                                 rc = bytes_read;
11112                                 fprintf(stderr,
11113                                         "%s: failed to read data from mirror %u: %s.\n",
11114                                         progname, chunk->mirror_id[i],
11115                                         strerror(-rc));
11116                                 goto error;
11117                         }
11118
11119                         /* compute new CRC-32 checksum */
11120                         crc_array[i] = crc32(crc, buf, bytes_read);
11121                 }
11122
11123                 if (verbose)
11124                         print_checksums(chunk, crc_array);
11125
11126                 /* compare CRC-32 checksum values */
11127                 for (i = 1; i < chunk->mirror_count; i++) {
11128                         if (crc_array[i] != crc_array[0]) {
11129                                 rc = -EINVAL;
11130
11131                                 fprintf(stderr,
11132                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
11133                                         progname, PEXT(&chunk->chunk),
11134                                         chunk->mirror_id[0],
11135                                         chunk->mirror_id[i]);
11136                         }
11137                 }
11138
11139                 pos += bytes_read;
11140                 bytes_done += bytes_read;
11141         }
11142
11143         if (verbose > 1 && rc == 0) {
11144                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11145                         PEXT(&chunk->chunk));
11146                 for (i = 0; i < chunk->mirror_count; i++)
11147                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11148                 fprintf(stdout, " PASS\n\n");
11149         }
11150
11151 error:
11152         free(buf);
11153         return rc;
11154 }
11155
11156 /**
11157  * lfs_mirror_verify_file() - Verify a mirrored file.
11158  * @fname:      Mirrored file name.
11159  * @mirror_ids: Specified mirror ids to be verified.
11160  * @ids_nr:     Number of specified mirror ids.
11161  * @verbose:    Verbose mode.
11162  *
11163  * This function verifies that each SYNC mirror of a mirrored file
11164  * specified by @fname contains exactly the same data.
11165  *
11166  * If @mirror_ids is specified, then the function will verify the
11167  * mirrors specified by @mirror_ids contain exactly the same data.
11168  *
11169  * If @verbose is specified, then the function will print where the
11170  * differences are if the data do not match. Otherwise, it will
11171  * just return an error in that case.
11172  *
11173  * Return: 0 on success or a negative error code on failure.
11174  */
11175 static inline
11176 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
11177                            int verbose)
11178 {
11179         struct verify_chunk chunks_array[1024] = { };
11180         struct llapi_layout *layout = NULL;
11181         struct stat stbuf;
11182         uint32_t flr_state;
11183         int fd;
11184         int chunk_count = 0;
11185         int idx = 0;
11186         int rc = 0;
11187         int rc1 = 0;
11188         int rc2 = 0;
11189
11190         if (stat(fname, &stbuf) < 0) {
11191                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
11192                         progname, fname, strerror(errno));
11193                 rc = -errno;
11194                 goto error;
11195         }
11196
11197         if (!S_ISREG(stbuf.st_mode)) {
11198                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
11199                         progname, fname);
11200                 rc = -EINVAL;
11201                 goto error;
11202         }
11203
11204         if (stbuf.st_size == 0) {
11205                 if (verbose)
11206                         fprintf(stdout, "%s: '%s' file size is 0.\n",
11207                                 progname, fname);
11208                 rc = 0;
11209                 goto error;
11210         }
11211
11212         fd = open(fname, O_DIRECT | O_RDONLY);
11213         if (fd < 0) {
11214                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
11215                         progname, fname, strerror(errno));
11216                 rc = -errno;
11217                 goto error;
11218         }
11219
11220         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
11221         if (rc < 0) {
11222                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
11223                         progname, fname, strerror(errno));
11224                 goto close_fd;
11225         }
11226
11227         layout = llapi_layout_get_by_fd(fd, 0);
11228         if (!layout) {
11229                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
11230                         progname, fname, strerror(errno));
11231                 rc = -errno;
11232                 llapi_lease_release(fd);
11233                 goto close_fd;
11234         }
11235
11236         rc = llapi_layout_flags_get(layout, &flr_state);
11237         if (rc < 0) {
11238                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
11239                         progname, fname, strerror(errno));
11240                 rc = -errno;
11241                 goto free_layout;
11242         }
11243
11244         flr_state &= LCM_FL_FLR_MASK;
11245         switch (flr_state) {
11246         case LCM_FL_NONE:
11247                 rc = -EINVAL;
11248                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
11249                         progname, fname, llapi_layout_flags_string(flr_state));
11250                 goto free_layout;
11251         default:
11252                 break;
11253         }
11254
11255         /* find out mirror chunks to be verified */
11256         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
11257                                                ARRAY_SIZE(chunks_array));
11258         if (chunk_count < 0) {
11259                 rc = chunk_count;
11260                 goto free_layout;
11261         }
11262
11263         if (ids_nr > 0)
11264                 /* filter specified mirror ids */
11265                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
11266
11267         if (verbose > 2)
11268                 print_chunks(fname, chunks_array, chunk_count);
11269
11270         for (idx = 0; idx < chunk_count; idx++) {
11271                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
11272                         if (verbose)
11273                                 fprintf(stdout,
11274                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
11275                                         progname, fname,
11276                                         PEXT(&chunks_array[idx].chunk),
11277                                         (unsigned long long)stbuf.st_size);
11278                         break;
11279                 }
11280
11281                 if (chunks_array[idx].mirror_count == 0) {
11282                         fprintf(stderr,
11283                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
11284                                 progname, fname,
11285                                 PEXT(&chunks_array[idx].chunk));
11286                         if (verbose) {
11287                                 fprintf(stderr, "skipped\n");
11288                                 continue;
11289                         }
11290                         rc = -EINVAL;
11291                         fprintf(stderr, "failed\n");
11292                         goto free_layout;
11293                 }
11294
11295                 if (chunks_array[idx].mirror_count == 1) {
11296                         if (verbose)
11297                                 fprintf(stdout,
11298                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
11299                                         progname, fname,
11300                                         PEXT(&chunks_array[idx].chunk),
11301                                         chunks_array[idx].mirror_id[0]);
11302                         continue;
11303                 }
11304
11305                 rc = llapi_lease_check(fd);
11306                 if (rc != LL_LEASE_RDLCK) {
11307                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
11308                                 progname, fname);
11309                         goto free_layout;
11310                 }
11311
11312                 /* verify one chunk */
11313                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
11314                                               &chunks_array[idx], verbose);
11315                 if (rc1 < 0) {
11316                         rc2 = rc1;
11317                         if (!verbose) {
11318                                 rc = rc1;
11319                                 goto free_layout;
11320                         }
11321                 }
11322         }
11323
11324         if (rc2 < 0)
11325                 rc = rc2;
11326
11327 free_layout:
11328         llapi_layout_free(layout);
11329         llapi_lease_release(fd);
11330 close_fd:
11331         close(fd);
11332 error:
11333         return rc;
11334 }
11335
11336 /**
11337  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
11338  * @argc: The count of lfs mirror verify command line arguments.
11339  * @argv: Array of strings for lfs mirror verify command line arguments.
11340  *
11341  * This function parses lfs mirror verify command and verifies the
11342  * specified mirrored file(s).
11343  *
11344  * Return: 0 on success or a negative error code on failure.
11345  */
11346 static inline int lfs_mirror_verify(int argc, char **argv)
11347 {
11348         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11349         int ids_nr = 0;
11350         int c;
11351         int verbose = 0;
11352         int rc = 0;
11353         int rc1 = 0;
11354         char cmd[PATH_MAX];
11355
11356         struct option long_opts[] = {
11357         { .val = 'o',   .name = "only",         .has_arg = required_argument },
11358         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
11359         { .name = NULL } };
11360
11361         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11362         progname = cmd;
11363         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
11364                 switch (c) {
11365                 case 'o':
11366                         rc = parse_mirror_ids(mirror_ids,
11367                                               ARRAY_SIZE(mirror_ids),
11368                                               optarg);
11369                         if (rc < 0) {
11370                                 fprintf(stderr,
11371                                         "%s: bad mirror ids '%s'.\n",
11372                                         progname, optarg);
11373                                 goto error;
11374                         }
11375                         ids_nr = rc;
11376                         if (ids_nr < 2) {
11377                                 fprintf(stderr,
11378                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
11379                                         progname);
11380                                 rc = CMD_HELP;
11381                                 goto error;
11382                         }
11383                         break;
11384                 case 'v':
11385                         verbose++;
11386                         break;
11387                 default:
11388                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
11389                                 progname, argv[optind - 1]);
11390                         rc = -EINVAL;
11391                         goto error;
11392                 }
11393         }
11394
11395         if (argc == optind) {
11396                 fprintf(stderr, "%s: no file name given.\n", progname);
11397                 rc = CMD_HELP;
11398                 goto error;
11399         }
11400
11401         if (ids_nr > 0 && argc > optind + 1) {
11402                 fprintf(stderr,
11403                         "%s: '--only' cannot be used upon multiple files.\n",
11404                         progname);
11405                 rc = CMD_HELP;
11406                 goto error;
11407         }
11408
11409         if (ids_nr > 0) {
11410                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
11411                 if (rc < 0)
11412                         goto error;
11413         }
11414
11415         rc = 0;
11416         for (; optind < argc; optind++) {
11417                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
11418                                              verbose);
11419                 if (rc1 < 0)
11420                         rc = rc1;
11421         }
11422 error:
11423         return rc;
11424 }
11425
11426 /**
11427  * lfs_mirror() - Parse and execute lfs mirror commands.
11428  * @argc: The count of lfs mirror command line arguments.
11429  * @argv: Array of strings for lfs mirror command line arguments.
11430  *
11431  * This function parses lfs mirror commands and performs the
11432  * corresponding functions specified in mirror_cmdlist[].
11433  *
11434  * Return: 0 on success or an error code on failure.
11435  */
11436 static int lfs_mirror(int argc, char **argv)
11437 {
11438         char cmd[PATH_MAX];
11439         int rc = 0;
11440
11441         setlinebuf(stdout);
11442
11443         Parser_init("lfs-mirror > ", mirror_cmdlist);
11444
11445         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11446         progname = cmd;
11447         program_invocation_short_name = cmd;
11448         if (argc > 1)
11449                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
11450         else
11451                 rc = Parser_commands();
11452
11453         return rc < 0 ? -rc : rc;
11454 }
11455
11456 static void lustre_som_swab(struct lustre_som_attrs *attrs)
11457 {
11458 #if __BYTE_ORDER == __BIG_ENDIAN
11459         __swab16s(&attrs->lsa_valid);
11460         __swab64s(&attrs->lsa_size);
11461         __swab64s(&attrs->lsa_blocks);
11462 #endif
11463 }
11464
11465 enum lfs_som_type {
11466         LFS_SOM_SIZE = 0x1,
11467         LFS_SOM_BLOCKS = 0x2,
11468         LFS_SOM_FLAGS = 0x4,
11469         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
11470                            LFS_SOM_FLAGS,
11471 };
11472
11473 static int lfs_getsom(int argc, char **argv)
11474 {
11475         const char *path;
11476         struct lustre_som_attrs *attrs;
11477         char buf[sizeof(*attrs) + 64];
11478         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
11479         int rc = 0, c;
11480
11481         while ((c = getopt(argc, argv, "sbf")) != -1) {
11482                 switch (c) {
11483                 case 's':
11484                         type = LFS_SOM_SIZE;
11485                         break;
11486                 case 'b':
11487                         type = LFS_SOM_BLOCKS;
11488                         break;
11489                 case 'f':
11490                         type = LFS_SOM_FLAGS;
11491                         break;
11492                 default:
11493                         fprintf(stderr, "%s: invalid option '%c'\n",
11494                                 progname, optopt);
11495                         return CMD_HELP;
11496                 }
11497         }
11498
11499         argc -= optind;
11500         argv += optind;
11501
11502         if (argc != 1) {
11503                 fprintf(stderr, "%s: %s\n",
11504                         progname, argc == 0 ? "miss file target" :
11505                         "input more than 2 files");
11506                 return CMD_HELP;
11507         }
11508
11509         path = argv[0];
11510         attrs = (void *)buf;
11511         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
11512         if (rc < 0) {
11513                 rc = -errno;
11514                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
11515                         argv[0], strerror(errno), errno);
11516                 return rc;
11517         }
11518
11519         lustre_som_swab(attrs);
11520
11521         switch (type) {
11522         case LFS_SOM_ATTR_ALL:
11523                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
11524                        path, (unsigned long long)attrs->lsa_size,
11525                        (unsigned long long)attrs->lsa_blocks,
11526                        attrs->lsa_valid);
11527                 break;
11528         case LFS_SOM_SIZE:
11529                 printf("%llu\n", (unsigned long long)attrs->lsa_size);
11530                 break;
11531         case LFS_SOM_BLOCKS:
11532                 printf("%llu\n", (unsigned long long)attrs->lsa_blocks);
11533                 break;
11534         case LFS_SOM_FLAGS:
11535                 printf("%x\n", attrs->lsa_valid);
11536                 break;
11537         default:
11538                 fprintf(stderr, "%s: unknown option\n", progname);
11539                 return CMD_HELP;
11540         }
11541
11542         return 0;
11543 }
11544
11545 /**
11546  * lfs_mirror_list_commands() - List lfs mirror commands.
11547  * @argc: The count of command line arguments.
11548  * @argv: Array of strings for command line arguments.
11549  *
11550  * This function lists lfs mirror commands defined in mirror_cmdlist[].
11551  *
11552  * Return: 0 on success.
11553  */
11554 static int lfs_mirror_list_commands(int argc, char **argv)
11555 {
11556         char buffer[81] = "";
11557
11558         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
11559                              NULL, 0, 4);
11560
11561         return 0;
11562 }
11563
11564 static int lfs_pcc_attach(int argc, char **argv)
11565 {
11566         struct option long_opts[] = {
11567         { .val = 'i',   .name = "id",   .has_arg = required_argument },
11568         { .name = NULL } };
11569         int c;
11570         int rc = 0;
11571         __u32 archive_id = 0;
11572         const char *path;
11573         char *end;
11574         char fullpath[PATH_MAX];
11575         enum lu_pcc_type type = LU_PCC_READWRITE;
11576
11577         optind = 0;
11578         while ((c = getopt_long(argc, argv, "i:",
11579                                 long_opts, NULL)) != -1) {
11580                 switch (c) {
11581                 case 'i':
11582                         errno = 0;
11583                         archive_id = strtoul(optarg, &end, 0);
11584                         if (errno != 0 || *end != '\0' ||
11585                             archive_id == 0 || archive_id > UINT32_MAX) {
11586                                 fprintf(stderr,
11587                                         "error: %s: bad archive ID '%s'\n",
11588                                         argv[0], optarg);
11589                                 return CMD_HELP;
11590                         }
11591                         break;
11592                 case '?':
11593                         return CMD_HELP;
11594                 default:
11595                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11596                                 argv[0], argv[optind - 1]);
11597                         return CMD_HELP;
11598                 }
11599         }
11600
11601         if (archive_id == 0) {
11602                 fprintf(stderr, "%s: must specify attach ID\n", argv[0]);
11603                 return CMD_HELP;
11604         }
11605
11606         if (argc <= optind) {
11607                 fprintf(stderr, "%s: must specify one or more file names\n",
11608                         argv[0]);
11609                 return CMD_HELP;
11610         }
11611
11612         while (optind < argc) {
11613                 int rc2;
11614
11615                 path = argv[optind++];
11616                 if (!realpath(path, fullpath)) {
11617                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11618                                 argv[0], path, strerror(errno));
11619                         if (rc == 0)
11620                                 rc = -EINVAL;
11621                         continue;
11622                 }
11623
11624                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
11625                 if (rc2 < 0) {
11626                         fprintf(stderr,
11627                                 "%s: cannot attach '%s' to PCC with archive ID '%u': %s\n",
11628                                 argv[0], path, archive_id, strerror(-rc2));
11629                         if (rc == 0)
11630                                 rc = rc2;
11631                 }
11632         }
11633         return rc;
11634 }
11635
11636 static int lfs_pcc_attach_fid(int argc, char **argv)
11637 {
11638         struct option long_opts[] = {
11639         { .val = 'i',   .name = "id",   .has_arg = required_argument },
11640         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
11641         { .name = NULL } };
11642         char                     short_opts[] = "i:m:";
11643         int                      c;
11644         int                      rc = 0;
11645         __u32                    archive_id = 0;
11646         char                    *end;
11647         const char              *mntpath = NULL;
11648         const char              *fidstr;
11649         enum lu_pcc_type         type = LU_PCC_READWRITE;
11650
11651         optind = 0;
11652         while ((c = getopt_long(argc, argv, short_opts,
11653                                 long_opts, NULL)) != -1) {
11654                 switch (c) {
11655                 case 'i':
11656                         errno = 0;
11657                         archive_id = strtoul(optarg, &end, 0);
11658                         if (errno != 0 || *end != '\0' ||
11659                             archive_id > UINT32_MAX) {
11660                                 fprintf(stderr,
11661                                         "error: %s: bad archive ID '%s'\n",
11662                                         argv[0], optarg);
11663                                 return CMD_HELP;
11664                         }
11665                         break;
11666                 case 'm':
11667                         mntpath = optarg;
11668                         break;
11669                 case '?':
11670                         return CMD_HELP;
11671                 default:
11672                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11673                                 argv[0], argv[optind - 1]);
11674                         return CMD_HELP;
11675                 }
11676         }
11677
11678         if (archive_id == 0) {
11679                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
11680                 return CMD_HELP;
11681         }
11682
11683         if (!mntpath) {
11684                 fprintf(stderr, "%s: must specify Lustre mount point\n",
11685                         argv[0]);
11686                 return CMD_HELP;
11687         }
11688
11689         if (argc <= optind) {
11690                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
11691                 return CMD_HELP;
11692         }
11693
11694         while (optind < argc) {
11695                 int rc2;
11696
11697                 fidstr = argv[optind++];
11698
11699                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
11700                                                archive_id, type);
11701                 if (rc2 < 0) {
11702                         fprintf(stderr,
11703                                 "%s: cannot attach '%s' on '%s' to PCC with archive ID '%u': %s\n",
11704                                 argv[0], fidstr, mntpath, archive_id,
11705                                 strerror(rc2));
11706                 }
11707                 if (rc == 0 && rc2 < 0)
11708                         rc = rc2;
11709         }
11710         return rc;
11711 }
11712
11713 static int lfs_pcc_detach(int argc, char **argv)
11714 {
11715         struct option long_opts[] = {
11716         { .val = 'k',   .name = "keep", .has_arg = no_argument },
11717         { .name = NULL } };
11718         char                     short_opts[] = "k";
11719         int                      c;
11720         int                      rc = 0;
11721         const char              *path;
11722         char                     fullpath[PATH_MAX];
11723         __u32                    detach_opt = PCC_DETACH_OPT_UNCACHE;
11724
11725         optind = 0;
11726         while ((c = getopt_long(argc, argv, short_opts,
11727                                 long_opts, NULL)) != -1) {
11728                 switch (c) {
11729                 case 'k':
11730                         detach_opt = PCC_DETACH_OPT_NONE;
11731                         break;
11732                 case '?':
11733                         return CMD_HELP;
11734                 default:
11735                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11736                                 argv[0], argv[optind - 1]);
11737                         return CMD_HELP;
11738                 }
11739         }
11740
11741         while (optind < argc) {
11742                 int rc2;
11743
11744                 path = argv[optind++];
11745                 if (!realpath(path, fullpath)) {
11746                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11747                                 argv[0], path, strerror(errno));
11748                         if (rc == 0)
11749                                 rc = -EINVAL;
11750                         continue;
11751                 }
11752
11753                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
11754                 if (rc2 < 0) {
11755                         rc2 = -errno;
11756                         fprintf(stderr,
11757                                 "%s: cannot detach '%s' from PCC: %s\n",
11758                                 argv[0], path, strerror(errno));
11759                         if (rc == 0)
11760                                 rc = rc2;
11761                 }
11762         }
11763         return rc;
11764 }
11765
11766 static int lfs_pcc_detach_fid(int argc, char **argv)
11767 {
11768         struct option long_opts[] = {
11769         { .val = 'k',   .name = "keep", .has_arg = no_argument },
11770         { .name = NULL } };
11771         char             short_opts[] = "k";
11772         int              c;
11773         int              rc = 0;
11774         const char      *fid;
11775         const char      *mntpath;
11776         __u32            detach_opt = PCC_DETACH_OPT_UNCACHE;
11777
11778         optind = 0;
11779         while ((c = getopt_long(argc, argv, short_opts,
11780                                 long_opts, NULL)) != -1) {
11781                 switch (c) {
11782                 case 'k':
11783                         detach_opt = PCC_DETACH_OPT_NONE;
11784                         break;
11785                 case '?':
11786                         return CMD_HELP;
11787                 default:
11788                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11789                                 argv[0], argv[optind - 1]);
11790                         return CMD_HELP;
11791                 }
11792         }
11793
11794         mntpath = argv[optind++];
11795
11796         while (optind < argc) {
11797                 int rc2;
11798
11799                 fid = argv[optind++];
11800
11801                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
11802                 if (rc2 < 0) {
11803                         fprintf(stderr,
11804                                 "%s: cannot detach '%s' on '%s' from PCC: %s\n",
11805                                 argv[0], fid, mntpath, strerror(-rc2));
11806                         if (rc == 0)
11807                                 rc = rc2;
11808                 }
11809         }
11810         return rc;
11811 }
11812
11813 static int lfs_pcc_state(int argc, char **argv)
11814 {
11815         int                      rc = 0;
11816         const char              *path;
11817         char                     fullpath[PATH_MAX];
11818         struct lu_pcc_state      state;
11819
11820         optind = 1;
11821
11822         if (argc <= 1) {
11823                 fprintf(stderr, "%s: must specify one or more file names\n",
11824                         argv[0]);
11825                 return CMD_HELP;
11826         }
11827
11828         while (optind < argc) {
11829                 int rc2;
11830
11831                 path = argv[optind++];
11832                 if (!realpath(path, fullpath)) {
11833                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11834                                 argv[0], path, strerror(errno));
11835                         if (rc == 0)
11836                                 rc = -EINVAL;
11837                         continue;
11838                 }
11839
11840                 rc2 = llapi_pcc_state_get(fullpath, &state);
11841                 if (rc2 < 0) {
11842                         if (rc == 0)
11843                                 rc = rc2;
11844                         fprintf(stderr,
11845                                 "%s: cannot get PCC state of '%s': %s\n",
11846                                 argv[0], path, strerror(-rc2));
11847                         continue;
11848                 }
11849
11850                 printf("file: %s", path);
11851                 printf(", type: %s", pcc_type2string(state.pccs_type));
11852                 if (state.pccs_type == LU_PCC_NONE &&
11853                     state.pccs_open_count == 0) {
11854                         printf("\n");
11855                         continue;
11856                 }
11857
11858                 printf(", PCC file: %s", state.pccs_path);
11859                 printf(", user number: %u", state.pccs_open_count);
11860                 printf(", flags: %x", state.pccs_flags);
11861                 printf("\n");
11862         }
11863         return rc;
11864 }
11865
11866 /**
11867  * lfs_pcc_list_commands() - List lfs pcc commands.
11868  * @argc: The count of command line arguments.
11869  * @argv: Array of strings for command line arguments.
11870  *
11871  * This function lists lfs pcc commands defined in pcc_cmdlist[].
11872  *
11873  * Return: 0 on success.
11874  */
11875 static int lfs_pcc_list_commands(int argc, char **argv)
11876 {
11877         char buffer[81] = "";
11878
11879         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
11880                              NULL, 0, 4);
11881
11882         return 0;
11883 }
11884
11885 /**
11886  * lfs_pcc() - Parse and execute lfs pcc commands.
11887  * @argc: The count of lfs pcc command line arguments.
11888  * @argv: Array of strings for lfs pcc command line arguments.
11889  *
11890  * This function parses lfs pcc commands and performs the
11891  * corresponding functions specified in pcc_cmdlist[].
11892  *
11893  * Return: 0 on success or an error code on failure.
11894  */
11895 static int lfs_pcc(int argc, char **argv)
11896 {
11897         char cmd[PATH_MAX];
11898         int rc = 0;
11899
11900         setlinebuf(stdout);
11901
11902         Parser_init("lfs-pcc > ", pcc_cmdlist);
11903
11904         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11905         progname = cmd;
11906         program_invocation_short_name = cmd;
11907         if (argc > 1)
11908                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
11909         else
11910                 rc = Parser_commands();
11911
11912         return rc < 0 ? -rc : rc;
11913 }
11914
11915 static int lfs_list_commands(int argc, char **argv)
11916 {
11917         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
11918
11919         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
11920
11921         return 0;
11922 }
11923
11924 int main(int argc, char **argv)
11925 {
11926         int rc;
11927
11928         /* Ensure that liblustreapi constructor has run */
11929         if (!llapi_liblustreapi_initialized())
11930                 fprintf(stderr, "liblustreapi was not properly initialized\n");
11931
11932         setlinebuf(stdout);
11933         opterr = 0;
11934
11935         Parser_init("lfs > ", cmdlist);
11936
11937         progname = program_invocation_short_name; /* Used in error messages */
11938         if (argc > 1) {
11939                 llapi_set_command_name(argv[1]);
11940                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
11941                 llapi_clear_command_name();
11942         } else {
11943                 rc = Parser_commands();
11944         }
11945
11946         return rc < 0 ? -rc : rc;
11947 }
11948
11949 #ifdef _LUSTRE_IDL_H_
11950 /* Everything we need here should be included by lustreapi.h. */
11951 # error "lfs should not depend on lustre_idl.h"
11952 #endif /* _LUSTRE_IDL_H_ */