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, 2016, 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 <getopt.h>
  47 #include <string.h>
  48 #include <mntent.h>
  49 #include <unistd.h>
  50 #include <errno.h>
  51 #include <err.h>
  52 #include <pwd.h>
  53 #include <grp.h>
  54 #include <sys/ioctl.h>
  55 #include <sys/quota.h>
  56 #include <sys/time.h>
  57 #include <sys/types.h>
  58 #include <sys/stat.h>
  59 #include <fcntl.h>
  60 #include <dirent.h>
  61 #include <time.h>
  62 #include <ctype.h>
  63
  64 #include <libcfs/util/string.h>
  65 #include <libcfs/util/ioctl.h>
  66 #include <libcfs/util/parser.h>
  67 #include <lustre/lustreapi.h>
  68 #include <linux/lustre/lustre_ver.h>
  69 #include <linux/lustre/lustre_param.h>
  70
  71 #ifndef ARRAY_SIZE
  72 # define ARRAY_SIZE(a) ((sizeof(a)) / (sizeof((a)[0])))
  73 #endif /* !ARRAY_SIZE */
  74
  75 /* all functions */
  76 static int lfs_setstripe(int argc, char **argv);
  77 static int lfs_find(int argc, char **argv);
  78 static int lfs_getstripe(int argc, char **argv);
  79 static int lfs_getdirstripe(int argc, char **argv);
  80 static int lfs_setdirstripe(int argc, char **argv);
  81 static int lfs_rmentry(int argc, char **argv);
  82 static int lfs_osts(int argc, char **argv);
  83 static int lfs_mdts(int argc, char **argv);
  84 static int lfs_df(int argc, char **argv);
  85 static int lfs_getname(int argc, char **argv);
  86 static int lfs_check(int argc, char **argv);
  87 #ifdef HAVE_SYS_QUOTA_H
  88 static int lfs_setquota(int argc, char **argv);
  89 static int lfs_quota(int argc, char **argv);
  90 #endif
  91 static int lfs_flushctx(int argc, char **argv);
  92 static int lfs_cp(int argc, char **argv);
  93 static int lfs_ls(int argc, char **argv);
  94 static int lfs_poollist(int argc, char **argv);
  95 static int lfs_changelog(int argc, char **argv);
  96 static int lfs_changelog_clear(int argc, char **argv);
  97 static int lfs_fid2path(int argc, char **argv);
  98 static int lfs_path2fid(int argc, char **argv);
  99 static int lfs_data_version(int argc, char **argv);
 100 static int lfs_hsm_state(int argc, char **argv);
 101 static int lfs_hsm_set(int argc, char **argv);
 102 static int lfs_hsm_clear(int argc, char **argv);
 103 static int lfs_hsm_action(int argc, char **argv);
 104 static int lfs_hsm_archive(int argc, char **argv);
 105 static int lfs_hsm_restore(int argc, char **argv);
 106 static int lfs_hsm_release(int argc, char **argv);
 107 static int lfs_hsm_remove(int argc, char **argv);
 108 static int lfs_hsm_cancel(int argc, char **argv);
 109 static int lfs_swap_layouts(int argc, char **argv);
 110 static int lfs_mv(int argc, char **argv);
 111 static int lfs_ladvise(int argc, char **argv);
 112 static int lfs_list_commands(int argc, char **argv);
 113
 114 /* Setstripe and migrate share mostly the same parameters */
 115 #define SSM_CMD_COMMON(cmd) \
 116         "usage: "cmd" [--stripe-count|-c <stripe_count>]\n"             \
 117         "                 [--stripe-index|-i <start_ost_idx>]\n"        \
 118         "                 [--stripe-size|-S <stripe_size>]\n"           \
 119         "                 [--pool|-p <pool_name>]\n"                    \
 120         "                 [--ost|-o <ost_indices>]\n"                   \
 121         "                 [--component-end|-E <comp_end>]\n"
 122
 123 #define SSM_HELP_COMMON \
 124         "\tstripe_size:  Number of bytes on each OST (0 filesystem default)\n" \
 125         "\t              Can be specified with k, m or g (in KB, MB and GB\n" \
 126         "\t              respectively)\n"                               \
 127         "\tstart_ost_idx: OST index of first stripe (-1 default)\n"     \
 128         "\tstripe_count: Number of OSTs to stripe over (0 default, -1 all)\n" \
 129         "\tpool_name:    Name of OST pool to use (default none)\n"      \
 130         "\tost_indices:  List of OST indices, can be repeated multiple times\n"\
 131         "\t              Indices be specified in a format of:\n"        \
 132         "\t                -o <ost_1>,<ost_i>-<ost_j>,<ost_n>\n"        \
 133         "\t              Or:\n"                                         \
 134         "\t                -o <ost_1> -o <ost_i>-<ost_j> -o <ost_n>\n"  \
 135         "\t              If --pool is set with --ost, then the OSTs\n"  \
 136         "\t              must be the members of the pool."              \
 137         "\tcomp_end:     Extent end of the component\n"                 \
 138         "\t              Can be specified with k, m or g (in KB, MB and GB\n" \
 139         "\t              respectively, -1 for EOF), it must be aligned with\n"\
 140         "\t              the stripe_size\n"
 141
 142 #define SETSTRIPE_USAGE                                         \
 143         SSM_CMD_COMMON("setstripe")                             \
 144         "                 <directory|filename>\n"               \
 145         SSM_HELP_COMMON                                         \
 146
 147 #define MIGRATE_USAGE                                                   \
 148         SSM_CMD_COMMON("migrate  ")                                     \
 149         "                 [--block|-b]\n"                               \
 150         "                 [--non-block|-n]\n"                           \
 151         "                 <filename>\n"                                 \
 152         SSM_HELP_COMMON                                                 \
 153         "\n"                                                            \
 154         "\tblock:        Block file access during data migration (default)\n" \
 155         "\tnon-block:    Abort migrations if concurrent access is detected\n" \
 156
 157 #define SETDIRSTRIPE_USAGE                                      \
 158         "               [--mdt-count|-c stripe_count>\n"        \
 159         "               [--mdt-index|-i mdt_index]\n"           \
 160         "               [--mdt-hash|-H mdt_hash]\n"             \
 161         "               [--default|-D] [--mode|-m mode] <dir>\n"        \
 162         "\tstripe_count: stripe count of the striped directory\n"       \
 163         "\tmdt_index: MDT index of first stripe\n"                      \
 164         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 165         "       fnv_1a_64 FNV-1a hash algorithm (default)\n"            \
 166         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 167         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 168         "\tmode: the mode of the directory\n"
 169
 170 static const char       *progname;
 171 static bool              file_lease_supported = true;
 172
 173 /* all available commands */
 174 command_t cmdlist[] = {
 175         {"setstripe", lfs_setstripe, 0,
 176          "Create a new file with a specific striping pattern or\n"
 177          "set the default striping pattern on an existing directory or\n"
 178          "delete the default striping pattern from an existing directory or\n"
 179          "add layout component(s) to an existing composite file or\n"
 180          "delete specified component(s) from an existing composite file\n\n"
 181          "To delete default striping from an existing directory:\n"
 182          "usage: setstripe -d <directory>\n"
 183          " or\n"
 184          "To delete component(s) from an existing composite file:\n"
 185          "usage: setstripe --component-del [--component-id|-I <comp_id>]\n"
 186          "                               [--component-flags|-F <comp_flags>]\n"
 187          "                               <filename>\n"
 188          "\tcomp_id:     Unique component ID\n"
 189          "\tcomp_flags:  'init' indicating all instantiated components\n"
 190          "\t             '^init' indicating all uninstantiated components\n"
 191          "\t-I and -F can't be specified at the same time\n"
 192          " or\n"
 193          "To add component(s) to an existing composite file:\n"
 194          SSM_CMD_COMMON("setstripe --component-add")
 195          " or\n"
 196          "To create a file with specified striping/composite layout:\n"
 197          SETSTRIPE_USAGE},
 198         {"getstripe", lfs_getstripe, 0,
 199          "To list the striping info for a given file or files in a\n"
 200          "directory or recursively for all files in a directory tree.\n"
 201          "usage: getstripe [--ost|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
 202          "                 [--stripe-count|-c] [--stripe-index|-i]\n"
 203          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 204          "                 [--mdt|-m] [--recursive|-r] [--raw|-R] [--yaml|-y]\n"
 205          "                 [--layout|-L] [--fid|-F] [--generation|-g]\n"
 206          "                 [--component-id[=comp_id]|-I[comp_id]]\n"
 207          "                 [--component-flags[=comp_flags]]\n"
 208          "                 [--component-count]\n"
 209          "                 [--component-start[=[+-]comp_start]]\n"
 210          "                 [--component-end[=[+-]comp_end]|-E[[+-]comp_end]]\n"
 211          "                 <directory|filename> ..."},
 212         {"setdirstripe", lfs_setdirstripe, 0,
 213          "To create a striped directory on a specified MDT. This can only\n"
 214          "be done on MDT0 with the right of administrator.\n"
 215          "usage: setdirstripe [OPTION] <directory>\n"
 216          SETDIRSTRIPE_USAGE},
 217         {"getdirstripe", lfs_getdirstripe, 0,
 218          "To list the striping info for a given directory\n"
 219          "or recursively for all directories in a directory tree.\n"
 220          "usage: getdirstripe [--obd|-O <uuid>] [--mdt-count|-c]\n"
 221          "                    [--mdt-index|-i] [--mdt-hash|-t]\n"
 222          "                    [--recursive|-r] [--yaml|-y]\n"
 223          "                    [--default|-D] <dir> ..."},
 224         {"mkdir", lfs_setdirstripe, 0,
 225          "To create a striped directory on a specified MDT. This can only\n"
 226          "be done on MDT0 with the right of administrator.\n"
 227          "usage: mkdir [OPTION] <directory>\n"
 228          SETDIRSTRIPE_USAGE},
 229         {"rm_entry", lfs_rmentry, 0,
 230          "To remove the name entry of the remote directory. Note: This\n"
 231          "command will only delete the name entry, i.e. the remote directory\n"
 232          "will become inaccessable after this command. This can only be done\n"
 233          "by the administrator\n"
 234          "usage: rm_entry <dir>\n"},
 235         {"pool_list", lfs_poollist, 0,
 236          "List pools or pool OSTs\n"
 237          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 238         {"find", lfs_find, 0,
 239          "find files matching given attributes recursively in directory tree.\n"
 240          "usage: find <directory|filename> ...\n"
 241          "     [[!] --atime|-A [+-]N] [[!] --ctime|-C [+-]N]\n"
 242          "     [[!] --mtime|-M [+-]N] [[!] --mdt|-m <uuid|index,...>]\n"
 243          "     [--maxdepth|-D N] [[!] --name|-n <pattern>]\n"
 244          "     [[!] --ost|-O <uuid|index,...>] [--print|-p] [--print0|-P]\n"
 245          "     [[!] --size|-s [+-]N[bkMGTPE]]\n"
 246          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 247          "     [[!] --stripe-index|-i <index,...>]\n"
 248          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 249          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
 250          "     [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
 251          "     [[!] --projid <projid>]\n"
 252          "     [[!] --layout|-L released,raid0]\n"
 253          "     [[!] --component-count [+-]<comp_cnt>]\n"
 254          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 255          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 256          "     [[!] --component-flags <comp_flags>]\n"
 257          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 258          "     [[!] --mdt-hash|-H <hashtype>\n"
 259          "\t !: used before an option indicates 'NOT' requested attribute\n"
 260          "\t -: used before a value indicates less than requested value\n"
 261          "\t +: used before a value indicates more than requested value\n"
 262          "\tmdt-hash:   hash type of the striped directory.\n"
 263          "\t            fnv_1a_64 FNV-1a hash algorithm\n"
 264          "\t            all_char  sum of characters % MDT_COUNT\n"},
 265         {"check", lfs_check, 0,
 266          "Display the status of MDS or OSTs (as specified in the command)\n"
 267          "or all the servers (MDS and OSTs).\n"
 268          "usage: check <osts|mds|servers>"},
 269         {"osts", lfs_osts, 0, "list OSTs connected to client "
 270          "[for specified path only]\n" "usage: osts [path]"},
 271         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 272          "[for specified path only]\n" "usage: mdts [path]"},
 273         {"df", lfs_df, 0,
 274          "report filesystem disk space usage or inodes usage"
 275          "of each MDS and all OSDs or a batch belonging to a specific pool .\n"
 276          "Usage: df [-i] [-h] [--lazy|-l] [--pool|-p <fsname>[.<pool>] [path]"},
 277         {"getname", lfs_getname, 0, "list instances and specified mount points "
 278          "[for specified path only]\n"
 279          "Usage: getname [-h]|[path ...] "},
 280 #ifdef HAVE_SYS_QUOTA_H
 281         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 282          "usage: setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 283          "                -b <block-softlimit> -B <block-hardlimit>\n"
 284          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 285          "       setquota <-u|--user|-g|--group|-p|--projid> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 286          "                [--block-softlimit <block-softlimit>]\n"
 287          "                [--block-hardlimit <block-hardlimit>]\n"
 288          "                [--inode-softlimit <inode-softlimit>]\n"
 289          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 290          "       setquota [-t] <-u|--user|-g|--group|-p|--projid>\n"
 291          "                [--block-grace <block-grace>]\n"
 292          "                [--inode-grace <inode-grace>] <filesystem>\n"
 293          "       -b can be used instead of --block-softlimit/--block-grace\n"
 294          "       -B can be used instead of --block-hardlimit\n"
 295          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 296          "       -I can be used instead of --inode-hardlimit\n\n"
 297          "Note: The total quota space will be split into many qunits and\n"
 298          "      balanced over all server targets, the minimal qunit size is\n"
 299          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 300          "      Quota space rebalancing process will stop when this mininum\n"
 301          "      value is reached. As a result, quota exceeded can be returned\n"
 302          "      while many targets still have 1MB or 1K inodes of spare\n"
 303          "      quota space."},
 304         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 305          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
 306                        "<ost_idx>]\n"
 307          "             [<-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>\n"
 308          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g|-p> <filesystem>"},
 309 #endif
 310         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
 311          "usage: flushctx [-k] [mountpoint...]"},
 312         {"cp", lfs_cp, 0,
 313          "Remote user copy files and directories.\n"
 314          "usage: cp [OPTION]... [-T] SOURCE DEST\n\tcp [OPTION]... SOURCE... DIRECTORY\n\tcp [OPTION]... -t DIRECTORY SOURCE..."},
 315         {"ls", lfs_ls, 0,
 316          "Remote user list directory contents.\n"
 317          "usage: ls [OPTION]... [FILE]..."},
 318         {"changelog", lfs_changelog, 0,
 319          "Show the metadata changes on an MDT."
 320          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 321         {"changelog_clear", lfs_changelog_clear, 0,
 322          "Indicate that old changelog records up to <endrec> are no longer of "
 323          "interest to consumer <id>, allowing the system to free up space.\n"
 324          "An <endrec> of 0 means all records.\n"
 325          "usage: changelog_clear <mdtname> <id> <endrec>"},
 326         {"fid2path", lfs_fid2path, 0,
 327          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 328          "specify link number <linkno>.\n"
 329         /* "For a historical link name, specify changelog record <recno>.\n" */
 330          "usage: fid2path [--link <linkno>] <fsname|rootpath> <fid> ..."
 331                 /* [ --rec <recno> ] */ },
 332         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 333          "usage: path2fid [--parents] <path> ..."},
 334         {"data_version", lfs_data_version, 0, "Display file data version for "
 335          "a given path.\n" "usage: data_version -[n|r|w] <path>"},
 336         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 337          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 338         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 339          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 340          "[--archived] [--lost] <file> ..."},
 341         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 342          "files.\n"
 343          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 344          "[--archived] [--lost] <file> ..."},
 345         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 346          "given files.\n" "usage: hsm_action <file> ..."},
 347         {"hsm_archive", lfs_hsm_archive, 0,
 348          "Archive file to external storage.\n"
 349          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 350          "<file> ..."},
 351         {"hsm_restore", lfs_hsm_restore, 0,
 352          "Restore file from external storage.\n"
 353          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 354         {"hsm_release", lfs_hsm_release, 0,
 355          "Release files from Lustre.\n"
 356          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 357         {"hsm_remove", lfs_hsm_remove, 0,
 358          "Remove file copy from external storage.\n"
 359          "usage: hsm_remove [--filelist FILELIST] [--data DATA]\n"
 360          "                  [--mntpath MOUNTPATH] [--archive NUM] <file|FID> ...\n"
 361          "\n"
 362          "Note: To remove files from the archive that have been deleted on\n"
 363          "Lustre, set mntpath and optionally archive. In that case, all the\n"
 364          "positional arguments and entries in the file list must be FIDs."
 365         },
 366         {"hsm_cancel", lfs_hsm_cancel, 0,
 367          "Cancel requests related to specified files.\n"
 368          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 369         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 370          "usage: swap_layouts <path1> <path2>"},
 371         {"migrate", lfs_setstripe, 0,
 372          "migrate a directory between MDTs.\n"
 373          "usage: migrate --mdt-index <mdt_idx> [--verbose|-v] "
 374          "<directory>\n"
 375          "\tmdt_idx:      index of the destination MDT\n"
 376          "\n"
 377          "migrate file objects from one OST "
 378          "layout\nto another (may be not safe with concurent writes).\n"
 379          "usage: migrate  "
 380          "[--stripe-count|-c] <stripe_count>\n"
 381          "              [--stripe-index|-i] <start_ost_index>\n"
 382          "              [--stripe-size|-S] <stripe_size>\n"
 383          "              [--pool|-p] <pool_name>\n"
 384          "              [--ost-list|-o] <ost_indices>\n"
 385          "              [--block|-b]\n"
 386          "              [--non-block|-n]\n"
 387          "              <file|directory>\n"
 388          "\tstripe_count:     number of OSTs to stripe a file over\n"
 389          "\tstripe_ost_index: index of the first OST to stripe a file over\n"
 390          "\tstripe_size:      number of bytes to store before moving to the next OST\n"
 391          "\tpool_name:        name of the predefined pool of OSTs\n"
 392          "\tost_indices:      OSTs to stripe over, in order\n"
 393          "\tblock:            wait for the operation to return before continuing\n"
 394          "\tnon-block:        do not wait for the operation to return.\n"},
 395         {"mv", lfs_mv, 0,
 396          "To move directories between MDTs. This command is deprecated, "
 397          "use \"migrate\" instead.\n"
 398          "usage: mv <directory|filename> [--mdt-index|-M] <mdt_index> "
 399          "[--verbose|-v]\n"},
 400         {"ladvise", lfs_ladvise, 0,
 401          "Provide servers with advice about access patterns for a file.\n"
 402          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 403          "               [--background|-b]\n"
 404          "               {[--end|-e END[kMGT]] | [--length|-l LENGTH[kMGT]]}\n"
 405          "               <file> ...\n"},
 406         {"help", Parser_help, 0, "help"},
 407         {"exit", Parser_quit, 0, "quit"},
 408         {"quit", Parser_quit, 0, "quit"},
 409         {"--version", Parser_version, 0,
 410          "output build version of the utility and exit"},
 411         {"--list-commands", lfs_list_commands, 0,
 412          "list commands supported by the utility and exit"},
 413         { 0, 0, 0, NULL }
 414 };
 415
 416
 417 #define MIGRATION_NONBLOCK      1
 418
 419 static int check_hashtype(const char *hashtype)
 420 {
 421         int i;
 422
 423         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 424                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 425                         return i;
 426
 427         return 0;
 428 }
 429
 430 /**
 431  * Internal helper for migrate_copy_data(). Check lease and report error if
 432  * need be.
 433  *
 434  * \param[in]  fd           File descriptor on which to check the lease.
 435  * \param[out] lease_broken Set to true if the lease was broken.
 436  * \param[in]  group_locked Whether a group lock was taken or not.
 437  * \param[in]  path         Name of the file being processed, for error
 438  *                          reporting
 439  *
 440  * \retval 0       Migration can keep on going.
 441  * \retval -errno  Error occurred, abort migration.
 442  */
 443 static int check_lease(int fd, bool *lease_broken, bool group_locked,
 444                        const char *path)
 445 {
 446         int rc;
 447
 448         if (!file_lease_supported)
 449                 return 0;
 450
 451         rc = llapi_lease_check(fd);
 452         if (rc > 0)
 453                 return 0; /* llapi_check_lease returns > 0 on success. */
 454
 455         if (!group_locked) {
 456                 fprintf(stderr, "%s: cannot migrate '%s': file busy\n",
 457                         progname, path);
 458                 rc = rc ? rc : -EAGAIN;
 459         } else {
 460                 fprintf(stderr, "%s: external attempt to access file '%s' "
 461                         "blocked until migration ends.\n", progname, path);
 462                 rc = 0;
 463         }
 464         *lease_broken = true;
 465         return rc;
 466 }
 467
 468 static int migrate_copy_data(int fd_src, int fd_dst, size_t buf_size,
 469                              bool group_locked, const char *fname)
 470 {
 471         void    *buf = NULL;
 472         ssize_t  rsize = -1;
 473         ssize_t  wsize = 0;
 474         size_t   rpos = 0;
 475         size_t   wpos = 0;
 476         off_t    bufoff = 0;
 477         int      rc;
 478         bool     lease_broken = false;
 479
 480         /* Use a page-aligned buffer for direct I/O */
 481         rc = posix_memalign(&buf, getpagesize(), buf_size);
 482         if (rc != 0)
 483                 return -rc;
 484
 485         while (1) {
 486                 /* read new data only if we have written all
 487                  * previously read data */
 488                 if (wpos == rpos) {
 489                         if (!lease_broken) {
 490                                 rc = check_lease(fd_src, &lease_broken,
 491                                                  group_locked, fname);
 492                                 if (rc < 0)
 493                                         goto out;
 494                         }
 495                         rsize = read(fd_src, buf, buf_size);
 496                         if (rsize < 0) {
 497                                 rc = -errno;
 498                                 fprintf(stderr, "%s: %s: read failed: %s\n",
 499                                         progname, fname, strerror(-rc));
 500                                 goto out;
 501                         }
 502                         rpos += rsize;
 503                         bufoff = 0;
 504                 }
 505                 /* eof ? */
 506                 if (rsize == 0)
 507                         break;
 508
 509                 wsize = write(fd_dst, buf + bufoff, rpos - wpos);
 510                 if (wsize < 0) {
 511                         rc = -errno;
 512                         fprintf(stderr,
 513                                 "%s: %s: write failed on volatile: %s\n",
 514                                 progname, fname, strerror(-rc));
 515                         goto out;
 516                 }
 517                 wpos += wsize;
 518                 bufoff += wsize;
 519         }
 520
 521         rc = fsync(fd_dst);
 522         if (rc < 0) {
 523                 rc = -errno;
 524                 fprintf(stderr, "%s: %s: fsync failed: %s\n",
 525                         progname, fname, strerror(-rc));
 526         }
 527
 528 out:
 529         free(buf);
 530         return rc;
 531 }
 532
 533 static int migrate_copy_timestamps(int fdv, const struct stat *st)
 534 {
 535         struct timeval  tv[2] = {
 536                 {.tv_sec = st->st_atime},
 537                 {.tv_sec = st->st_mtime}
 538         };
 539
 540         return futimes(fdv, tv);
 541 }
 542
 543 static int migrate_block(int fd, int fdv, const struct stat *st,
 544                          size_t buf_size, const char *name)
 545 {
 546         __u64   dv1;
 547         int     gid;
 548         int     rc;
 549         int     rc2;
 550
 551         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 552         if (rc < 0) {
 553                 fprintf(stderr, "%s: %s: cannot get dataversion: %s\n",
 554                         progname, name, strerror(-rc));
 555                 return rc;
 556         }
 557
 558         do
 559                 gid = random();
 560         while (gid == 0);
 561
 562         /* The grouplock blocks all concurrent accesses to the file.
 563          * It has to be taken after llapi_get_data_version as it would
 564          * block it too. */
 565         rc = llapi_group_lock(fd, gid);
 566         if (rc < 0) {
 567                 fprintf(stderr, "%s: %s: cannot get group lock: %s\n",
 568                         progname, name, strerror(-rc));
 569                 return rc;
 570         }
 571
 572         rc = migrate_copy_data(fd, fdv, buf_size, true, name);
 573         if (rc < 0) {
 574                 fprintf(stderr, "%s: %s: data copy failed\n", progname, name);
 575                 goto out_unlock;
 576         }
 577
 578         /* Make sure we keep original atime/mtime values */
 579         rc = migrate_copy_timestamps(fdv, st);
 580         if (rc < 0) {
 581                 fprintf(stderr, "%s: %s: timestamp copy failed\n",
 582                         progname, name);
 583                 goto out_unlock;
 584         }
 585
 586         /* swap layouts
 587          * for a migration we need to check data version on file did
 588          * not change.
 589          *
 590          * Pass in gid=0 since we already own grouplock. */
 591         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
 592                                            SWAP_LAYOUTS_CHECK_DV1);
 593         if (rc == -EAGAIN) {
 594                 fprintf(stderr, "%s: %s: dataversion changed during copy, "
 595                         "migration aborted\n", progname, name);
 596                 goto out_unlock;
 597         } else if (rc < 0) {
 598                 fprintf(stderr, "%s: %s: cannot swap layouts: %s\n", progname,
 599                         name, strerror(-rc));
 600                 goto out_unlock;
 601         }
 602
 603 out_unlock:
 604         rc2 = llapi_group_unlock(fd, gid);
 605         if (rc2 < 0 && rc == 0) {
 606                 fprintf(stderr, "%s: %s: putting group lock failed: %s\n",
 607                         progname, name, strerror(-rc2));
 608                 rc = rc2;
 609         }
 610
 611         return rc;
 612 }
 613
 614 static int migrate_nonblock(int fd, int fdv, const struct stat *st,
 615                             size_t buf_size, const char *name)
 616 {
 617         __u64   dv1;
 618         __u64   dv2;
 619         int     rc;
 620
 621         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 622         if (rc < 0) {
 623                 fprintf(stderr, "%s: %s: cannot get data version: %s\n",
 624                         progname, name, strerror(-rc));
 625                 return rc;
 626         }
 627
 628         rc = migrate_copy_data(fd, fdv, buf_size, false, name);
 629         if (rc < 0) {
 630                 fprintf(stderr, "%s: %s: data copy failed\n", progname, name);
 631                 return rc;
 632         }
 633
 634         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
 635         if (rc != 0) {
 636                 fprintf(stderr, "%s: %s: cannot get data version: %s\n",
 637                         progname, name, strerror(-rc));
 638                 return rc;
 639         }
 640
 641         if (dv1 != dv2) {
 642                 rc = -EAGAIN;
 643                 fprintf(stderr, "%s: %s: data version changed during "
 644                                 "migration\n",
 645                         progname, name);
 646                 return rc;
 647         }
 648
 649         /* Make sure we keep original atime/mtime values */
 650         rc = migrate_copy_timestamps(fdv, st);
 651         if (rc < 0) {
 652                 fprintf(stderr, "%s: %s: timestamp copy failed\n",
 653                         progname, name);
 654                 return rc;
 655         }
 656
 657         /* Atomically put lease, swap layouts and close.
 658          * for a migration we need to check data version on file did
 659          * not change. */
 660         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
 661         if (rc < 0) {
 662                 fprintf(stderr, "%s: %s: cannot swap layouts: %s\n",
 663                         progname, name, strerror(-rc));
 664                 return rc;
 665         }
 666
 667         return 0;
 668 }
 669
 670 static int lfs_component_set(char *fname, int comp_id, __u32 flags)
 671 {
 672         return -ENOTSUP;
 673 }
 674
 675 static int lfs_component_del(char *fname, __u32 comp_id, __u32 flags)
 676 {
 677         int     rc = 0;
 678
 679         if (flags != 0 && comp_id != 0)
 680                 return -EINVAL;
 681
 682         /* LCME_FL_INIT is the only supported flag in PFL */
 683         if (flags != 0) {
 684                 if (flags & ~LCME_KNOWN_FLAGS) {
 685                         fprintf(stderr, "Invalid component flags %#x\n", flags);
 686                         return -EINVAL;
 687                 }
 688         } else if (comp_id > LCME_ID_MAX) {
 689                 fprintf(stderr, "Invalid component id %u\n", comp_id);
 690                 return -EINVAL;
 691         }
 692
 693         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
 694         if (rc)
 695                 fprintf(stderr, "Delete component %#x from %s failed. %s\n",
 696                         comp_id, fname, strerror(errno));
 697         return rc;
 698 }
 699
 700 static int lfs_component_add(char *fname, struct llapi_layout *layout)
 701 {
 702         int     rc;
 703
 704         if (layout == NULL)
 705                 return -EINVAL;
 706
 707         rc = llapi_layout_file_comp_add(fname, layout);
 708         if (rc)
 709                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
 710                         fname, strerror(errno));
 711         return rc;
 712 }
 713
 714 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
 715                                 struct llapi_layout *layout)
 716 {
 717         struct stat     st;
 718         int     fd;
 719
 720         if (layout == NULL)
 721                 return -EINVAL;
 722
 723         fd = lstat(fname, &st);
 724         if (fd == 0 && S_ISDIR(st.st_mode))
 725                 open_flags = O_DIRECTORY | O_RDONLY;
 726
 727         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
 728         if (fd < 0)
 729                 fprintf(stderr, "%s %s failed. %s\n",
 730                         S_ISDIR(st.st_mode) ?
 731                                 "Set default composite layout to " :
 732                                 "Create composite file",
 733                         fname, strerror(errno));
 734         return fd;
 735 }
 736
 737 static int lfs_migrate(char *name, __u64 migration_flags,
 738                        struct llapi_stripe_param *param,
 739                        struct llapi_layout *layout)
 740 {
 741         int                      fd = -1;
 742         int                      fdv = -1;
 743         char                     parent[PATH_MAX];
 744         int                      mdt_index;
 745         int                      random_value;
 746         char                     volatile_file[sizeof(parent) +
 747                                                LUSTRE_VOLATILE_HDR_LEN +
 748                                                2 * sizeof(mdt_index) +
 749                                                2 * sizeof(random_value) + 4];
 750         char                    *ptr;
 751         int                      rc;
 752         struct lov_user_md      *lum = NULL;
 753         int                      lum_size;
 754         int                      buf_size = 1024 * 1024 * 4;
 755         bool                     have_lease_rdlck = false;
 756         struct stat              st;
 757         struct stat              stv;
 758
 759         /* find the right size for the IO and allocate the buffer */
 760         lum_size = lov_user_md_size(LOV_MAX_STRIPE_COUNT, LOV_USER_MAGIC_V3);
 761         lum = malloc(lum_size);
 762         if (lum == NULL) {
 763                 rc = -ENOMEM;
 764                 goto free;
 765         }
 766
 767         rc = llapi_file_get_stripe(name, lum);
 768         /* failure can happen for many reasons and some may be not real errors
 769          * (eg: no stripe)
 770          * in case of a real error, a later call will fail with better
 771          * error management */
 772         if (rc == 0) {
 773                 if ((lum->lmm_magic == LOV_USER_MAGIC_V1 ||
 774                      lum->lmm_magic == LOV_USER_MAGIC_V3) &&
 775                     lum->lmm_stripe_size != 0)
 776                         buf_size = lum->lmm_stripe_size;
 777         }
 778
 779         /* open file, direct io */
 780         /* even if the file is only read, WR mode is nedeed to allow
 781          * layout swap on fd */
 782         fd = open(name, O_RDWR | O_DIRECT);
 783         if (fd == -1) {
 784                 rc = -errno;
 785                 fprintf(stderr, "%s: %s: cannot open: %s\n", progname, name,
 786                         strerror(-rc));
 787                 goto free;
 788         }
 789
 790         if (file_lease_supported) {
 791                 rc = llapi_lease_get(fd, LL_LEASE_RDLCK);
 792                 if (rc == -EOPNOTSUPP) {
 793                         /* Older servers do not support file lease.
 794                          * Disable related checks. This opens race conditions
 795                          * as explained in LU-4840 */
 796                         file_lease_supported = false;
 797                 } else if (rc < 0) {
 798                         fprintf(stderr, "%s: %s: cannot get open lease: %s\n",
 799                                 progname, name, strerror(-rc));
 800                         goto error;
 801                 } else {
 802                         have_lease_rdlck = true;
 803                 }
 804         }
 805
 806         /* search for file directory pathname */
 807         if (strlen(name) > sizeof(parent)-1) {
 808                 rc = -E2BIG;
 809                 goto error;
 810         }
 811         strncpy(parent, name, sizeof(parent));
 812         ptr = strrchr(parent, '/');
 813         if (ptr == NULL) {
 814                 if (getcwd(parent, sizeof(parent)) == NULL) {
 815                         rc = -errno;
 816                         goto error;
 817                 }
 818         } else {
 819                 if (ptr == parent)
 820                         strcpy(parent, "/");
 821                 else
 822                         *ptr = '\0';
 823         }
 824
 825         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 826         if (rc < 0) {
 827                 fprintf(stderr, "%s: %s: cannot get MDT index: %s\n",
 828                         progname, name, strerror(-rc));
 829                 goto error;
 830         }
 831
 832         do {
 833                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 834                 mode_t open_mode = S_IRUSR | S_IWUSR;
 835
 836                 random_value = random();
 837                 rc = snprintf(volatile_file, sizeof(volatile_file),
 838                               "%s/%s:%.4X:%.4X", parent, LUSTRE_VOLATILE_HDR,
 839                               mdt_index, random_value);
 840                 if (rc >= sizeof(volatile_file)) {
 841                         rc = -E2BIG;
 842                         goto error;
 843                 }
 844
 845                 /* create, open a volatile file, use caching (ie no directio) */
 846                 if (param != NULL)
 847                         fdv = llapi_file_open_param(volatile_file, open_flags,
 848                                                     open_mode, param);
 849                 else if (layout != NULL)
 850                         fdv = lfs_component_create(volatile_file, open_flags,
 851                                                    open_mode, layout);
 852                 else
 853                         fdv = -EINVAL;
 854         } while (fdv == -EEXIST);
 855
 856         if (fdv < 0) {
 857                 rc = fdv;
 858                 fprintf(stderr, "%s: %s: cannot create volatile file in"
 859                                 " directory: %s\n",
 860                         progname, parent, strerror(-rc));
 861                 goto error;
 862         }
 863
 864         /* In case the MDT does not support creation of volatile files
 865          * we should try to unlink it. */
 866         (void)unlink(volatile_file);
 867
 868         /* Not-owner (root?) special case.
 869          * Need to set owner/group of volatile file like original.
 870          * This will allow to pass related check during layout_swap.
 871          */
 872         rc = fstat(fd, &st);
 873         if (rc != 0) {
 874                 rc = -errno;
 875                 fprintf(stderr, "%s: %s: cannot stat: %s\n", progname, name,
 876                         strerror(errno));
 877                 goto error;
 878         }
 879         rc = fstat(fdv, &stv);
 880         if (rc != 0) {
 881                 rc = -errno;
 882                 fprintf(stderr, "%s: %s: cannot stat: %s\n", progname,
 883                         volatile_file, strerror(errno));
 884                 goto error;
 885         }
 886         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 887                 rc = fchown(fdv, st.st_uid, st.st_gid);
 888                 if (rc != 0) {
 889                         rc = -errno;
 890                         fprintf(stderr, "%s: %s: cannot chown: %s\n", progname,
 891                                 name, strerror(errno));
 892                         goto error;
 893                 }
 894         }
 895
 896         if (migration_flags & MIGRATION_NONBLOCK && file_lease_supported) {
 897                 rc = migrate_nonblock(fd, fdv, &st, buf_size, name);
 898                 if (rc == 0) {
 899                         have_lease_rdlck = false;
 900                         fdv = -1; /* The volatile file is closed as we put the
 901                                    * lease in non-blocking mode. */
 902                 }
 903         } else {
 904                 /* Blocking mode (forced if servers do not support file lease).
 905                  * It is also the default mode, since we cannot distinguish
 906                  * between a broken lease and a server that does not support
 907                  * atomic swap/close (LU-6785) */
 908                 rc = migrate_block(fd, fdv, &st, buf_size, name);
 909         }
 910
 911 error:
 912         if (have_lease_rdlck)
 913                 llapi_lease_put(fd);
 914
 915         if (fd >= 0)
 916                 close(fd);
 917
 918         if (fdv >= 0)
 919                 close(fdv);
 920
 921 free:
 922         if (lum)
 923                 free(lum);
 924
 925         return rc;
 926 }
 927
 928 /**
 929  * Parse a string containing an OST index list into an array of integers.
 930  *
 931  * The input string contains a comma delimited list of individual
 932  * indices and ranges, for example "1,2-4,7". Add the indices into the
 933  * \a osts array and remove duplicates.
 934  *
 935  * \param[out] osts    array to store indices in
 936  * \param[in] size     size of \a osts array
 937  * \param[in] offset   starting index in \a osts
 938  * \param[in] arg      string containing OST index list
 939  *
 940  * \retval positive    number of indices in \a osts
 941  * \retval -EINVAL     unable to parse \a arg
 942  */
 943 static int parse_targets(__u32 *osts, int size, int offset, char *arg)
 944 {
 945         int rc;
 946         int nr = offset;
 947         int slots = size - offset;
 948         char *ptr = NULL;
 949         bool end_of_loop;
 950
 951         if (arg == NULL)
 952                 return -EINVAL;
 953
 954         end_of_loop = false;
 955         while (!end_of_loop) {
 956                 int start_index;
 957                 int end_index;
 958                 int i;
 959                 char *endptr = NULL;
 960
 961                 rc = -EINVAL;
 962
 963                 ptr = strchrnul(arg, ',');
 964
 965                 end_of_loop = *ptr == '\0';
 966                 *ptr = '\0';
 967
 968                 start_index = strtol(arg, &endptr, 0);
 969                 if (endptr == arg) /* no data at all */
 970                         break;
 971                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
 972                         break;
 973                 if (start_index < 0)
 974                         break;
 975
 976                 end_index = start_index;
 977                 if (*endptr == '-') {
 978                         end_index = strtol(endptr + 1, &endptr, 0);
 979                         if (*endptr != '\0')
 980                                 break;
 981                         if (end_index < start_index)
 982                                 break;
 983                 }
 984
 985                 for (i = start_index; i <= end_index && slots > 0; i++) {
 986                         int j;
 987
 988                         /* remove duplicate */
 989                         for (j = 0; j < offset; j++) {
 990                                 if (osts[j] == i)
 991                                         break;
 992                         }
 993                         if (j == offset) { /* no duplicate */
 994                                 osts[nr++] = i;
 995                                 --slots;
 996                         }
 997                 }
 998                 if (slots == 0 && i < end_index)
 999                         break;
1000
1001                 *ptr = ',';
1002                 arg = ++ptr;
1003                 offset = nr;
1004                 rc = 0;
1005         }
1006         if (!end_of_loop && ptr != NULL)
1007                 *ptr = ',';
1008
1009         return rc < 0 ? rc : nr;
1010 }
1011
1012 struct lfs_setstripe_args {
1013         unsigned long long       lsa_comp_end;
1014         unsigned long long       lsa_stripe_size;
1015         int                      lsa_stripe_count;
1016         int                      lsa_stripe_off;
1017         __u32                    lsa_comp_flags;
1018         int                      lsa_nr_osts;
1019         __u32                   *lsa_osts;
1020         char                    *lsa_pool_name;
1021 };
1022
1023 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
1024 {
1025         memset(lsa, 0, sizeof(*lsa));
1026         lsa->lsa_stripe_off = -1;
1027 }
1028
1029 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
1030 {
1031         return (lsa->lsa_stripe_size != 0 || lsa->lsa_stripe_count != 0 ||
1032                 lsa->lsa_stripe_off != -1 || lsa->lsa_pool_name != NULL ||
1033                 lsa->lsa_comp_end != 0);
1034 }
1035
1036 static int comp_args_to_layout(struct llapi_layout **composite,
1037                                struct lfs_setstripe_args *lsa)
1038 {
1039         struct llapi_layout *layout = *composite;
1040         uint64_t prev_end = 0;
1041         int i = 0, rc;
1042
1043         if (layout == NULL) {
1044                 layout = llapi_layout_alloc();
1045                 if (layout == NULL) {
1046                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
1047                                 strerror(errno));
1048                         return -ENOMEM;
1049                 }
1050                 *composite = layout;
1051         } else {
1052                 uint64_t start;
1053
1054                 /* Get current component extent, current component
1055                  * must be the tail component. */
1056                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
1057                 if (rc) {
1058                         fprintf(stderr, "Get comp extent failed. %s\n",
1059                                 strerror(errno));
1060                         return rc;
1061                 }
1062
1063                 rc = llapi_layout_comp_add(layout);
1064                 if (rc) {
1065                         fprintf(stderr, "Add component failed. %s\n",
1066                                 strerror(errno));
1067                         return rc;
1068                 }
1069         }
1070
1071         rc = llapi_layout_comp_extent_set(layout, prev_end, lsa->lsa_comp_end);
1072         if (rc) {
1073                 fprintf(stderr, "Set extent [%lu, %llu) failed. %s\n",
1074                         prev_end, lsa->lsa_comp_end, strerror(errno));
1075                 return rc;
1076         }
1077
1078         if (lsa->lsa_stripe_size != 0) {
1079                 rc = llapi_layout_stripe_size_set(layout,
1080                                                   lsa->lsa_stripe_size);
1081                 if (rc) {
1082                         fprintf(stderr, "Set stripe size %llu failed. %s\n",
1083                                 lsa->lsa_stripe_size, strerror(errno));
1084                         return rc;
1085                 }
1086         }
1087
1088         if (lsa->lsa_stripe_count != 0) {
1089                 rc = llapi_layout_stripe_count_set(layout,
1090                                                    lsa->lsa_stripe_count == -1 ?
1091                                                    LLAPI_LAYOUT_WIDE :
1092                                                    lsa->lsa_stripe_count);
1093                 if (rc) {
1094                         fprintf(stderr, "Set stripe count %d failed. %s\n",
1095                                 lsa->lsa_stripe_count, strerror(errno));
1096                         return rc;
1097                 }
1098         }
1099
1100         if (lsa->lsa_pool_name != NULL) {
1101                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
1102                 if (rc) {
1103                         fprintf(stderr, "Set pool name: %s failed. %s\n",
1104                                 lsa->lsa_pool_name, strerror(errno));
1105                         return rc;
1106                 }
1107         }
1108
1109         if (lsa->lsa_nr_osts > 0) {
1110                 if (lsa->lsa_stripe_count > 0 &&
1111                     lsa->lsa_nr_osts != lsa->lsa_stripe_count) {
1112                         fprintf(stderr, "stripe_count(%d) != nr_osts(%d)\n",
1113                                 lsa->lsa_stripe_count, lsa->lsa_nr_osts);
1114                         return -EINVAL;
1115                 }
1116                 for (i = 0; i < lsa->lsa_nr_osts; i++) {
1117                         rc = llapi_layout_ost_index_set(layout, i,
1118                                                         lsa->lsa_osts[i]);
1119                         if (rc)
1120                                 break;
1121                 }
1122         } else if (lsa->lsa_stripe_off != -1) {
1123                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
1124         }
1125         if (rc) {
1126                 fprintf(stderr, "Set ost index %d failed. %s\n",
1127                         i, strerror(errno));
1128                 return rc;
1129         }
1130
1131         return 0;
1132 }
1133
1134 /* In 'lfs setstripe --component-add' mode, we need to fetch the extent
1135  * end of the last component in the existing file, and adjust the
1136  * first extent start of the components to be added accordingly. */
1137 static int adjust_first_extent(char *fname, struct llapi_layout *layout)
1138 {
1139         struct llapi_layout *head;
1140         uint64_t start, end, stripe_size, prev_end = 0;
1141         int rc;
1142
1143         if (layout == NULL)
1144                 return -EINVAL;
1145
1146         errno = 0;
1147         head = llapi_layout_get_by_path(fname, 0);
1148         if (head == NULL) {
1149                 fprintf(stderr, "Read layout from %s failed. %s\n",
1150                         fname, strerror(errno));
1151                 return -EINVAL;
1152         } else if (errno == ENODATA) {
1153                 /* file without LOVEA, this component-add will be turned
1154                  * into a component-create. */
1155                 llapi_layout_free(head);
1156                 return -ENODATA;
1157         } else if (!llapi_layout_is_composite(head)) {
1158                 fprintf(stderr, "'%s' isn't a composite file.\n",
1159                         fname);
1160                 llapi_layout_free(head);
1161                 return -EINVAL;
1162         }
1163
1164         rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
1165         if (rc) {
1166                 fprintf(stderr, "Get prev extent failed. %s\n",
1167                         strerror(errno));
1168                 llapi_layout_free(head);
1169                 return rc;
1170         }
1171
1172         llapi_layout_free(head);
1173
1174         /* Make sure we use the first component of the layout to be added. */
1175         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
1176         if (rc < 0) {
1177                 fprintf(stderr, "Move component cursor failed. %s\n",
1178                         strerror(errno));
1179                 return rc;
1180         }
1181
1182         rc = llapi_layout_comp_extent_get(layout, &start, &end);
1183         if (rc) {
1184                 fprintf(stderr, "Get extent failed. %s\n", strerror(errno));
1185                 return rc;
1186         }
1187
1188         if (start > prev_end || end <= prev_end) {
1189                 fprintf(stderr, "First extent to be set [%lu, %lu) isn't "
1190                         "adjacent with the existing file extent end: %lu\n",
1191                         start, end, prev_end);
1192                 return -EINVAL;
1193         }
1194
1195         rc = llapi_layout_stripe_size_get(layout, &stripe_size);
1196         if (rc) {
1197                 fprintf(stderr, "Get stripe size failed. %s\n",
1198                         strerror(errno));
1199                 return rc;
1200         }
1201
1202         if (stripe_size != LLAPI_LAYOUT_DEFAULT &&
1203             (prev_end & (stripe_size - 1))) {
1204                 fprintf(stderr, "Stripe size %lu not aligned with %lu\n",
1205                         stripe_size, prev_end);
1206                 return -EINVAL;
1207         }
1208
1209         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
1210         if (rc) {
1211                 fprintf(stderr, "Set component extent [%lu, %lu) failed. %s\n",
1212                         prev_end, end, strerror(errno));
1213                 return rc;
1214         }
1215
1216         return 0;
1217 }
1218
1219 static inline bool comp_flags_is_neg(__u32 flags)
1220 {
1221         return flags & LCME_FL_NEG;
1222 }
1223
1224 static inline void comp_flags_set_neg(__u32 *flags)
1225 {
1226         *flags |= LCME_FL_NEG;
1227 }
1228
1229 static inline void comp_flags_clear_neg(__u32 *flags)
1230 {
1231         *flags &= ~LCME_FL_NEG;
1232 }
1233
1234 static int comp_str2flags(__u32 *flags, char *string)
1235 {
1236         char *name;
1237         __u32 neg_flags = 0;
1238
1239         if (string == NULL)
1240                 return -EINVAL;
1241
1242         *flags = 0;
1243         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1244                 bool found = false;
1245                 int i;
1246
1247                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1248                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1249                         const char *comp_name = comp_flags_table[i].cfn_name;
1250
1251                         if (strcmp(name, comp_name) == 0) {
1252                                 *flags |= comp_flag;
1253                                 found = true;
1254                         } else if (strncmp(name, "^", 1) == 0 &&
1255                                    strcmp(name + 1, comp_name) == 0) {
1256                                 neg_flags |= comp_flag;
1257                                 found = true;
1258                         }
1259                 }
1260                 if (!found) {
1261                         llapi_printf(LLAPI_MSG_ERROR, "Component flag "
1262                                      "'%s' is not supported.\n", name);
1263                         return -EINVAL;
1264                 }
1265         }
1266
1267         if (*flags == 0 && neg_flags == 0)
1268                 return -EINVAL;
1269         /* don't support mixed flags for now */
1270         if (*flags && neg_flags)
1271                 return -EINVAL;
1272
1273         if (neg_flags) {
1274                 *flags = neg_flags;
1275                 comp_flags_set_neg(flags);
1276         }
1277
1278         return 0;
1279 }
1280
1281 static inline bool arg_is_eof(char *arg)
1282 {
1283         return !strncmp(arg, "-1", strlen("-1")) ||
1284                !strncmp(arg, "EOF", strlen("EOF")) ||
1285                !strncmp(arg, "eof", strlen("eof"));
1286 }
1287
1288 enum {
1289         LFS_POOL_OPT = 3,
1290         LFS_COMP_COUNT_OPT,
1291         LFS_COMP_START_OPT,
1292         LFS_COMP_FLAGS_OPT,
1293         LFS_COMP_DEL_OPT,
1294         LFS_COMP_SET_OPT,
1295         LFS_COMP_ADD_OPT,
1296         LFS_PROJID_OPT,
1297 };
1298
1299 /* functions */
1300 static int lfs_setstripe(int argc, char **argv)
1301 {
1302         struct lfs_setstripe_args        lsa;
1303         struct llapi_stripe_param       *param = NULL;
1304         struct find_param                migrate_mdt_param = {
1305                 .fp_max_depth = -1,
1306                 .fp_mdt_index = -1,
1307         };
1308         char                            *fname;
1309         int                              result;
1310         int                              result2 = 0;
1311         char                            *end;
1312         int                              c;
1313         int                              delete = 0;
1314         char                            *mdt_idx_arg = NULL;
1315         unsigned long long               size_units = 1;
1316         bool                             migrate_mode = false;
1317         bool                             migration_block = false;
1318         __u64                            migration_flags = 0;
1319         __u32                            osts[LOV_MAX_STRIPE_COUNT] = { 0 };
1320         int                              comp_del = 0, comp_set = 0;
1321         int                              comp_add = 0;
1322         __u32                            comp_id = 0;
1323         struct llapi_layout             *layout = NULL;
1324
1325         struct option long_opts[] = {
1326                 /* --block is only valid in migrate mode */
1327         { .val = 'b',   .name = "block",        .has_arg = no_argument},
1328         { .val = LFS_COMP_ADD_OPT,
1329                         .name = "comp-add",     .has_arg = no_argument},
1330         { .val = LFS_COMP_ADD_OPT,
1331                         .name = "component-add",
1332                                                 .has_arg = no_argument},
1333         { .val = LFS_COMP_DEL_OPT,
1334                         .name = "comp-del",     .has_arg = no_argument},
1335         { .val = LFS_COMP_DEL_OPT,
1336                         .name = "component-del",
1337                                                 .has_arg = no_argument},
1338         { .val = LFS_COMP_FLAGS_OPT,
1339                         .name = "comp-flags",   .has_arg = required_argument},
1340         { .val = LFS_COMP_FLAGS_OPT,
1341                         .name = "component-flags",
1342                                                 .has_arg = required_argument},
1343         { .val = LFS_COMP_SET_OPT,
1344                         .name = "comp-set",     .has_arg = no_argument},
1345         { .val = LFS_COMP_SET_OPT,
1346                         .name = "component-set",
1347                                                 .has_arg = no_argument},
1348 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
1349         /* This formerly implied "stripe-count", but was explicitly
1350          * made "stripe-count" for consistency with other options,
1351          * and to separate it from "mdt-count" when DNE arrives. */
1352         { .val = 'c',   .name = "count",        .has_arg = required_argument },
1353 #endif
1354         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
1355         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
1356         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
1357         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
1358         { .val = 'E',   .name = "component-end",
1359                                                 .has_arg = required_argument},
1360         /* dirstripe {"mdt-hash",     required_argument, 0, 'H'}, */
1361 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
1362         /* This formerly implied "stripe-index", but was explicitly
1363          * made "stripe-index" for consistency with other options,
1364          * and to separate it from "mdt-index" when DNE arrives. */
1365         { .val = 'i',   .name = "index",        .has_arg = required_argument },
1366 #endif
1367         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
1368         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
1369         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
1370         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
1371         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
1372         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
1373         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
1374         /* --non-block is only valid in migrate mode */
1375         { .val = 'n',   .name = "non-block",    .has_arg = no_argument},
1376         { .val = 'o',   .name = "ost",          .has_arg = required_argument},
1377 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
1378         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
1379         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
1380 #endif
1381         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
1382 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
1383         /* This formerly implied "--stripe-size", but was confusing
1384          * with "lfs find --size|-s", which means "file size", so use
1385          * the consistent "--stripe-size|-S" for all commands. */
1386         { .val = 's',   .name = "size",         .has_arg = required_argument },
1387 #endif
1388         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
1389         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
1390         /* dirstripe {"mdt-count",    required_argument, 0, 'T'}, */
1391         /* --verbose is only valid in migrate mode */
1392         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
1393         { .val = LFS_COMP_ADD_OPT,
1394                         .name = "component-add",
1395                                                 .has_arg = no_argument },
1396         { .val = LFS_COMP_DEL_OPT,
1397                         .name = "component-del",
1398                                                 .has_arg = no_argument },
1399         { .val = LFS_COMP_FLAGS_OPT,
1400                         .name = "component-flags",
1401                                                 .has_arg = required_argument },
1402         { .val = LFS_COMP_SET_OPT,
1403                         .name = "component-set",
1404                                                 .has_arg = no_argument },
1405         { .name = NULL } };
1406
1407         setstripe_args_init(&lsa);
1408
1409         if (strcmp(argv[0], "migrate") == 0)
1410                 migrate_mode = true;
1411
1412         while ((c = getopt_long(argc, argv, "bc:dE:i:I:m:no:p:s:S:v",
1413                                 long_opts, NULL)) >= 0) {
1414                 switch (c) {
1415                 case 0:
1416                         /* Long options. */
1417                         break;
1418                 case LFS_COMP_ADD_OPT:
1419                         comp_add = 1;
1420                         break;
1421                 case LFS_COMP_DEL_OPT:
1422                         comp_del = 1;
1423                         break;
1424                 case LFS_COMP_FLAGS_OPT:
1425                         result = comp_str2flags(&lsa.lsa_comp_flags, optarg);
1426                         if (result != 0) {
1427                                 fprintf(stderr, "error: %s: bad comp flags "
1428                                         "'%s'\n", argv[0], optarg);
1429                                 goto error;
1430                         }
1431                         break;
1432                 case LFS_COMP_SET_OPT:
1433                         comp_set = 1;
1434                         break;
1435                 case 'b':
1436                         if (!migrate_mode) {
1437                                 fprintf(stderr, "--block is valid only for"
1438                                                 " migrate mode\n");
1439                                 goto error;
1440                         }
1441                         migration_block = true;
1442                         break;
1443                 case 'c':
1444 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
1445                         if (strcmp(argv[optind - 1], "--count") == 0)
1446                                 fprintf(stderr, "warning: '--count' deprecated"
1447                                         ", use '--stripe-count' instead\n");
1448 #endif
1449                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
1450                         if (*end != '\0') {
1451                                 fprintf(stderr, "error: %s: bad stripe count "
1452                                         "'%s'\n", argv[0], optarg);
1453                                 goto error;
1454                         }
1455                         break;
1456                 case 'd':
1457                         /* delete the default striping pattern */
1458                         delete = 1;
1459                         break;
1460                 case 'E':
1461                         if (lsa.lsa_comp_end != 0) {
1462                                 result = comp_args_to_layout(&layout, &lsa);
1463                                 if (result)
1464                                         goto error;
1465
1466                                 setstripe_args_init(&lsa);
1467                         }
1468
1469                         if (arg_is_eof(optarg)) {
1470                                 lsa.lsa_comp_end = LUSTRE_EOF;
1471                         } else {
1472                                 result = llapi_parse_size(optarg,
1473                                                         &lsa.lsa_comp_end,
1474                                                         &size_units, 0);
1475                                 if (result) {
1476                                         fprintf(stderr, "error: %s: "
1477                                                 "bad component end '%s'\n",
1478                                                 argv[0], optarg);
1479                                         goto error;
1480                                 }
1481                         }
1482                         break;
1483                 case 'i':
1484                         if (strcmp(argv[optind - 1], "--index") == 0)
1485                                 fprintf(stderr, "warning: '--index' deprecated"
1486                                         ", use '--stripe-index' instead\n");
1487                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
1488                         if (*end != '\0') {
1489                                 fprintf(stderr, "error: %s: bad stripe offset "
1490                                         "'%s'\n", argv[0], optarg);
1491                                 goto error;
1492                         }
1493                         break;
1494                 case 'I':
1495                         comp_id = strtoul(optarg, &end, 0);
1496                         if (*end != '\0' || comp_id == 0 ||
1497                             comp_id > LCME_ID_MAX) {
1498                                 fprintf(stderr, "error: %s: bad comp ID "
1499                                         "'%s'\n", argv[0], optarg);
1500                                 goto error;
1501                         }
1502                         break;
1503                 case 'm':
1504                         if (!migrate_mode) {
1505                                 fprintf(stderr, "--mdt-index is valid only for"
1506                                                 " migrate mode\n");
1507                                 goto error;
1508                         }
1509                         mdt_idx_arg = optarg;
1510                         break;
1511                 case 'n':
1512                         if (!migrate_mode) {
1513                                 fprintf(stderr, "--non-block is valid only for"
1514                                                 " migrate mode\n");
1515                                 goto error;
1516                         }
1517                         migration_flags |= MIGRATION_NONBLOCK;
1518                         break;
1519                 case 'o':
1520                         lsa.lsa_nr_osts = parse_targets(osts,
1521                                                 sizeof(osts) / sizeof(__u32),
1522                                                 lsa.lsa_nr_osts, optarg);
1523                         if (lsa.lsa_nr_osts < 0) {
1524                                 fprintf(stderr,
1525                                         "error: %s: bad OST indices '%s'\n",
1526                                         argv[0], optarg);
1527                                 goto error;
1528                         }
1529
1530                         lsa.lsa_osts = osts;
1531                         if (lsa.lsa_stripe_off == -1)
1532                                 lsa.lsa_stripe_off = osts[0];
1533                         break;
1534                 case 'p':
1535                         if (optarg == NULL)
1536                                 goto error;
1537                         lsa.lsa_pool_name = optarg;
1538                         break;
1539 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
1540                 case 's':
1541 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
1542                         fprintf(stderr, "warning: '--size|-s' deprecated, "
1543                                 "use '--stripe-size|-S' instead\n");
1544 #endif
1545 #endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0) */
1546                 case 'S':
1547                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
1548                                                   &size_units, 0);
1549                         if (result) {
1550                                 fprintf(stderr, "error: %s: bad stripe size "
1551                                         "'%s'\n", argv[0], optarg);
1552                                 goto error;
1553                         }
1554                         break;
1555                 case 'v':
1556                         if (!migrate_mode) {
1557                                 fprintf(stderr, "--verbose is valid only for"
1558                                                 " migrate mode\n");
1559                                 goto error;
1560                         }
1561                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
1562                         break;
1563                 default:
1564                         goto error;
1565                 }
1566         }
1567
1568         fname = argv[optind];
1569
1570         if (lsa.lsa_comp_end != 0) {
1571                 result = comp_args_to_layout(&layout, &lsa);
1572                 if (result)
1573                         goto error;
1574         }
1575
1576         if (optind == argc) {
1577                 fprintf(stderr, "error: %s: missing filename|dirname\n",
1578                         argv[0]);
1579                 goto error;
1580         }
1581
1582         /* Only LCME_FL_INIT flags is used in PFL, and it shouldn't be
1583          * altered by user space tool, so we don't need to support the
1584          * --component-set for this moment. */
1585         if (comp_set != 0) {
1586                 fprintf(stderr, "error: %s: --component-set isn't supported.\n",
1587                         argv[0]);
1588                 goto error;
1589         }
1590
1591         if ((delete + comp_set + comp_del + comp_add) > 1) {
1592                 fprintf(stderr, "error: %s: can't specify --component-set, "
1593                         "--component-del, --component-add or -d together\n",
1594                         argv[0]);
1595                 goto error;
1596         }
1597
1598         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
1599                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
1600                 fprintf(stderr, "error: %s: can't specify -d with "
1601                         "-s, -c, -o, -p, -I, -F or -E options\n",
1602                         argv[0]);
1603                 goto error;
1604         }
1605
1606         if ((comp_set || comp_del) &&
1607             (setstripe_args_specified(&lsa) || layout != NULL)) {
1608                 fprintf(stderr, "error: %s: can't specify --component-del or "
1609                         "--component-set with -s, -c, -o, -p or -E options.\n",
1610                         argv[0]);
1611                 goto error;
1612         }
1613
1614         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
1615                 fprintf(stderr, "error: %s: can't specify both -I and -F for "
1616                         "--component-del option.\n", argv[0]);
1617                 goto error;
1618         }
1619
1620         if (comp_add || comp_del) {
1621                 struct stat st;
1622
1623                 result = lstat(fname, &st);
1624                 if (result == 0 && S_ISDIR(st.st_mode)) {
1625                         fprintf(stderr, "error: %s: can't use --component-add "
1626                                 "or --component-del for directory.\n",
1627                                 argv[0]);
1628                         goto error;
1629                 }
1630         }
1631
1632         if (comp_add) {
1633                 if (layout == NULL) {
1634                         fprintf(stderr, "error: %s: -E option must be present"
1635                                 "in --component-add mode.\n", argv[0]);
1636                         goto error;
1637                 }
1638                 result = adjust_first_extent(fname, layout);
1639                 if (result == -ENODATA)
1640                         comp_add = 0;
1641                 else if (result != 0)
1642                         goto error;
1643         }
1644
1645         if (mdt_idx_arg != NULL && optind > 3) {
1646                 fprintf(stderr, "error: %s: cannot specify -m with other "
1647                         "options\n", argv[0]);
1648                 goto error;
1649         }
1650
1651         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
1652                 fprintf(stderr,
1653                         "error: %s: cannot specify --non-block and --block\n",
1654                         argv[0]);
1655                 goto error;
1656         }
1657
1658         if (!comp_del && !comp_set && comp_id != 0) {
1659                 fprintf(stderr, "error: %s: -I can only be used with "
1660                         "--component-del.\n", argv[0]);
1661                 goto error;
1662         }
1663
1664         if (mdt_idx_arg != NULL) {
1665                 /* initialize migrate mdt parameters */
1666                 migrate_mdt_param.fp_mdt_index = strtoul(mdt_idx_arg, &end, 0);
1667                 if (*end != '\0') {
1668                         fprintf(stderr, "error: %s: bad MDT index '%s'\n",
1669                                 argv[0], mdt_idx_arg);
1670                         goto error;
1671                 }
1672                 migrate_mdt_param.fp_migrate = 1;
1673         } else if (layout == NULL) {
1674                 /* initialize stripe parameters */
1675                 param = calloc(1, offsetof(typeof(*param),
1676                                lsp_osts[lsa.lsa_nr_osts]));
1677                 if (param == NULL) {
1678                         fprintf(stderr, "error: %s: %s\n", argv[0],
1679                                 strerror(ENOMEM));
1680                         goto error;
1681                 }
1682
1683                 param->lsp_stripe_size = lsa.lsa_stripe_size;
1684                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
1685                 param->lsp_stripe_count = lsa.lsa_stripe_count;
1686                 param->lsp_stripe_pattern = 0;
1687                 param->lsp_pool = lsa.lsa_pool_name;
1688                 param->lsp_is_specific = false;
1689                 if (lsa.lsa_nr_osts > 0) {
1690                         if (lsa.lsa_stripe_count > 0 &&
1691                             lsa.lsa_nr_osts != lsa.lsa_stripe_count) {
1692                                 fprintf(stderr, "error: %s: stripe count '%d' "
1693                                         "doesn't match the number of OSTs: %d\n"
1694                                         , argv[0], lsa.lsa_stripe_count,
1695                                         lsa.lsa_nr_osts);
1696                                 free(param);
1697                                 goto error;
1698                         }
1699
1700                         param->lsp_is_specific = true;
1701                         param->lsp_stripe_count = lsa.lsa_nr_osts;
1702                         memcpy(param->lsp_osts, osts,
1703                                sizeof(*osts) * lsa.lsa_nr_osts);
1704                 }
1705         }
1706
1707         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
1708                 char *op;
1709                 if (mdt_idx_arg != NULL) {
1710                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
1711                         op = "migrate mdt objects of";
1712                 } else if (migrate_mode) {
1713                         result = lfs_migrate(fname, migration_flags, param,
1714                                              layout);
1715                         op = "migrate ost objects of";
1716                 } else if (comp_set != 0) {
1717                         result = lfs_component_set(fname, comp_id,
1718                                                    lsa.lsa_comp_flags);
1719                         op = "modify component flags of";
1720                 } else if (comp_del != 0) {
1721                         result = lfs_component_del(fname, comp_id,
1722                                                    lsa.lsa_comp_flags);
1723                         op = "delete component of";
1724                 } else if (comp_add != 0) {
1725                         result = lfs_component_add(fname, layout);
1726                         op = "add component to";
1727                 } else if (layout != NULL) {
1728                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
1729                                                       0644, layout);
1730                         if (result >= 0) {
1731                                 close(result);
1732                                 result = 0;
1733                         }
1734                         op = "create composite";
1735                 } else {
1736                         result = llapi_file_open_param(fname,
1737                                                        O_CREAT | O_WRONLY,
1738                                                        0644, param);
1739                         if (result >= 0) {
1740                                 close(result);
1741                                 result = 0;
1742                         }
1743                         op = "create striped";
1744                 }
1745                 if (result) {
1746                         /* Save the first error encountered. */
1747                         if (result2 == 0)
1748                                 result2 = result;
1749                         fprintf(stderr, "error: %s: %s file '%s' failed: %s\n",
1750                                 argv[0], op, fname,
1751                                 lsa.lsa_pool_name != NULL && result == EINVAL ?
1752                                 "OST not in pool?" : strerror(errno));
1753                         continue;
1754                 }
1755         }
1756
1757         free(param);
1758         llapi_layout_free(layout);
1759         return result2;
1760 error:
1761         llapi_layout_free(layout);
1762         return CMD_HELP;
1763 }
1764
1765 static int lfs_poollist(int argc, char **argv)
1766 {
1767         if (argc != 2)
1768                 return CMD_HELP;
1769
1770         return llapi_poollist(argv[1]);
1771 }
1772
1773 static int set_time(time_t *time, time_t *set, char *str)
1774 {
1775         time_t t;
1776         int res = 0;
1777
1778         if (str[0] == '+')
1779                 res = 1;
1780         else if (str[0] == '-')
1781                 res = -1;
1782
1783         if (res)
1784                 str++;
1785
1786         t = strtol(str, NULL, 0);
1787         if (*time < t * 24 * 60 * 60) {
1788                 if (res)
1789                         str--;
1790                 fprintf(stderr, "Wrong time '%s' is specified.\n", str);
1791                 return INT_MAX;
1792         }
1793
1794         *set = *time - t * 24 * 60 * 60;
1795         return res;
1796 }
1797 static int name2uid(unsigned int *id, const char *name)
1798 {
1799         struct passwd *passwd;
1800
1801         passwd = getpwnam(name);
1802         if (passwd == NULL)
1803                 return -ENOENT;
1804         *id = passwd->pw_uid;
1805
1806         return 0;
1807 }
1808
1809 static int name2gid(unsigned int *id, const char *name)
1810 {
1811         struct group *group;
1812
1813         group = getgrnam(name);
1814         if (group == NULL)
1815                 return -ENOENT;
1816         *id = group->gr_gid;
1817
1818         return 0;
1819 }
1820
1821 static inline int name2projid(unsigned int *id, const char *name)
1822 {
1823         return -ENOTSUP;
1824 }
1825
1826 static int uid2name(char **name, unsigned int id)
1827 {
1828         struct passwd *passwd;
1829
1830         passwd = getpwuid(id);
1831         if (passwd == NULL)
1832                 return -ENOENT;
1833         *name = passwd->pw_name;
1834
1835         return 0;
1836 }
1837
1838 static inline int gid2name(char **name, unsigned int id)
1839 {
1840         struct group *group;
1841
1842         group = getgrgid(id);
1843         if (group == NULL)
1844                 return -ENOENT;
1845         *name = group->gr_name;
1846
1847         return 0;
1848 }
1849
1850 static int name2layout(__u32 *layout, char *name)
1851 {
1852         char *ptr, *lyt;
1853
1854         *layout = 0;
1855         for (ptr = name; ; ptr = NULL) {
1856                 lyt = strtok(ptr, ",");
1857                 if (lyt == NULL)
1858                         break;
1859                 if (strcmp(lyt, "released") == 0)
1860                         *layout |= LOV_PATTERN_F_RELEASED;
1861                 else if (strcmp(lyt, "raid0") == 0)
1862                         *layout |= LOV_PATTERN_RAID0;
1863                 else
1864                         return -1;
1865         }
1866         return 0;
1867 }
1868
1869 static int lfs_find(int argc, char **argv)
1870 {
1871         int c, rc;
1872         int ret = 0;
1873         time_t t;
1874         struct find_param param = {
1875                 .fp_max_depth = -1,
1876                 .fp_quiet = 1,
1877         };
1878         struct option long_opts[] = {
1879         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
1880         { .val = LFS_COMP_COUNT_OPT,
1881                         .name = "comp-count",   .has_arg = required_argument },
1882         { .val = LFS_COMP_COUNT_OPT,
1883                         .name = "component-count",
1884                                                 .has_arg = required_argument },
1885         { .val = LFS_COMP_FLAGS_OPT,
1886                         .name = "comp-flags",   .has_arg = required_argument },
1887         { .val = LFS_COMP_FLAGS_OPT,
1888                         .name = "component-flags",
1889                                                 .has_arg = required_argument },
1890         { .val = LFS_COMP_START_OPT,
1891                         .name = "comp-start",   .has_arg = required_argument },
1892         { .val = LFS_COMP_START_OPT,
1893                         .name = "component-start",
1894                                                 .has_arg = required_argument },
1895         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
1896         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
1897         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
1898         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
1899         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
1900         { .val = 'E',   .name = "component-end",
1901                                                 .has_arg = required_argument },
1902         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
1903         { .val = 'G',   .name = "group",        .has_arg = required_argument },
1904         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
1905         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
1906         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
1907         /*{"component-id", required_argument, 0, 'I'},*/
1908         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
1909         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
1910         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
1911         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
1912         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
1913         { .val = 'n',   .name = "name",         .has_arg = required_argument },
1914      /* reserve {"or",           no_argument,     , 0, 'o'}, to match find(1) */
1915         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
1916         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
1917         /* no short option for pool, p/P already used */
1918         { .val = LFS_POOL_OPT,
1919                         .name = "pool",         .has_arg = required_argument },
1920         { .val = 'p',   .name = "print0",       .has_arg = no_argument },
1921         { .val = 'P',   .name = "print",        .has_arg = no_argument },
1922         { .val = LFS_PROJID_OPT,
1923                         .name = "projid",       .has_arg = required_argument },
1924         { .val = 's',   .name = "size",         .has_arg = required_argument },
1925         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
1926         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
1927         { .val = 't',   .name = "type",         .has_arg = required_argument },
1928         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
1929         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
1930         { .val = 'U',   .name = "user",         .has_arg = required_argument },
1931         { .name = NULL } };
1932         int pathstart = -1;
1933         int pathend = -1;
1934         int neg_opt = 0;
1935         time_t *xtime;
1936         int *xsign;
1937         int isoption;
1938         char *endptr;
1939
1940         time(&t);
1941
1942         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
1943         while ((c = getopt_long_only(argc, argv,
1944                         "-A:c:C:D:E:g:G:H:i:L:m:M:n:O:Ppqrs:S:t:T:u:U:v",
1945                         long_opts, NULL)) >= 0) {
1946                 xtime = NULL;
1947                 xsign = NULL;
1948                 if (neg_opt)
1949                         --neg_opt;
1950                 /* '!' is part of option */
1951                 /* when getopt_long_only() finds a string which is not
1952                  * an option nor a known option argument it returns 1
1953                  * in that case if we already have found pathstart and pathend
1954                  * (i.e. we have the list of pathnames),
1955                  * the only supported value is "!"
1956                  */
1957                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
1958                 if (!isoption && pathend != -1) {
1959                         fprintf(stderr, "err: %s: filename|dirname must either "
1960                                         "precede options or follow options\n",
1961                                         argv[0]);
1962                         ret = CMD_HELP;
1963                         goto err;
1964                 }
1965                 if (!isoption && pathstart == -1)
1966                         pathstart = optind - 1;
1967                 if (isoption && pathstart != -1 && pathend == -1)
1968                         pathend = optind - 2;
1969                 switch (c) {
1970                 case 0:
1971                         /* Long options. */
1972                         break;
1973                 case 1:
1974                         /* unknown; opt is "!" or path component,
1975                          * checking done above.
1976                          */
1977                         if (strcmp(optarg, "!") == 0)
1978                                 neg_opt = 2;
1979                         break;
1980                 case 'A':
1981                         xtime = &param.fp_atime;
1982                         xsign = &param.fp_asign;
1983                         param.fp_exclude_atime = !!neg_opt;
1984                         /* no break, this falls through to 'C' for ctime */
1985                 case 'C':
1986                         if (c == 'C') {
1987                                 xtime = &param.fp_ctime;
1988                                 xsign = &param.fp_csign;
1989                                 param.fp_exclude_ctime = !!neg_opt;
1990                         }
1991                         /* no break, this falls through to 'M' for mtime */
1992                 case 'M':
1993                         if (c == 'M') {
1994                                 xtime = &param.fp_mtime;
1995                                 xsign = &param.fp_msign;
1996                                 param.fp_exclude_mtime = !!neg_opt;
1997                         }
1998                         rc = set_time(&t, xtime, optarg);
1999                         if (rc == INT_MAX) {
2000                                 ret = -1;
2001                                 goto err;
2002                         }
2003                         if (rc)
2004                                 *xsign = rc;
2005                         break;
2006                 case LFS_COMP_COUNT_OPT:
2007                         if (optarg[0] == '+') {
2008                                 param.fp_comp_count_sign = -1;
2009                                 optarg++;
2010                         } else if (optarg[0] == '-') {
2011                                 param.fp_comp_count_sign =  1;
2012                                 optarg++;
2013                         }
2014
2015                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
2016                         if (*endptr != '\0') {
2017                                 fprintf(stderr, "error: bad component count "
2018                                         "'%s'\n", optarg);
2019                                 goto err;
2020                         }
2021                         param.fp_check_comp_count = 1;
2022                         param.fp_exclude_comp_count = !!neg_opt;
2023                         break;
2024                 case LFS_COMP_FLAGS_OPT:
2025                         rc = comp_str2flags(&param.fp_comp_flags, optarg);
2026                         if (rc || comp_flags_is_neg(param.fp_comp_flags)) {
2027                                 fprintf(stderr, "error: bad component flags "
2028                                         "'%s'\n", optarg);
2029                                 goto err;
2030                         }
2031                         param.fp_check_comp_flags = 1;
2032                         param.fp_exclude_comp_flags = !!neg_opt;
2033                         break;
2034                 case LFS_COMP_START_OPT:
2035                         if (optarg[0] == '+') {
2036                                 param.fp_comp_start_sign = -1;
2037                                 optarg++;
2038                         } else if (optarg[0] == '-') {
2039                                 param.fp_comp_start_sign =  1;
2040                                 optarg++;
2041                         }
2042
2043                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
2044                                               &param.fp_comp_start_units, 0);
2045                         if (rc) {
2046                                 fprintf(stderr, "error: bad component start "
2047                                         "'%s'\n", optarg);
2048                                 goto err;
2049                         }
2050                         param.fp_check_comp_start = 1;
2051                         param.fp_exclude_comp_start = !!neg_opt;
2052                         break;
2053                 case 'c':
2054                         if (optarg[0] == '+') {
2055                                 param.fp_stripe_count_sign = -1;
2056                                 optarg++;
2057                         } else if (optarg[0] == '-') {
2058                                 param.fp_stripe_count_sign =  1;
2059                                 optarg++;
2060                         }
2061
2062                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
2063                         if (*endptr != '\0') {
2064                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
2065                                         optarg);
2066                                 ret = -1;
2067                                 goto err;
2068                         }
2069                         param.fp_check_stripe_count = 1;
2070                         param.fp_exclude_stripe_count = !!neg_opt;
2071                         break;
2072                 case 'D':
2073                         param.fp_max_depth = strtol(optarg, 0, 0);
2074                         break;
2075                 case 'E':
2076                         if (optarg[0] == '+') {
2077                                 param.fp_comp_end_sign = -1;
2078                                 optarg++;
2079                         } else if (optarg[0] == '-') {
2080                                 param.fp_comp_end_sign =  1;
2081                                 optarg++;
2082                         }
2083
2084                         if (arg_is_eof(optarg)) {
2085                                 param.fp_comp_end = LUSTRE_EOF;
2086                                 param.fp_comp_end_units = 1;
2087                                 rc = 0;
2088                         } else {
2089                                 rc = llapi_parse_size(optarg,
2090                                                 &param.fp_comp_end,
2091                                                 &param.fp_comp_end_units, 0);
2092                         }
2093                         if (rc) {
2094                                 fprintf(stderr, "error: bad component end "
2095                                         "'%s'\n", optarg);
2096                                 goto err;
2097                         }
2098                         param.fp_check_comp_end = 1;
2099                         param.fp_exclude_comp_end = !!neg_opt;
2100                         break;
2101                 case 'g':
2102                 case 'G':
2103                         rc = name2gid(&param.fp_gid, optarg);
2104                         if (rc) {
2105                                 param.fp_gid = strtoul(optarg, &endptr, 10);
2106                                 if (*endptr != '\0') {
2107                                         fprintf(stderr, "Group/GID: %s cannot "
2108                                                 "be found.\n", optarg);
2109                                         ret = -1;
2110                                         goto err;
2111                                 }
2112                         }
2113                         param.fp_exclude_gid = !!neg_opt;
2114                         param.fp_check_gid = 1;
2115                         break;
2116                 case 'H':
2117                         param.fp_hash_type = check_hashtype(optarg);
2118                         if (param.fp_hash_type == 0) {
2119                                 fprintf(stderr, "error: bad hash_type '%s'\n",
2120                                         optarg);
2121                                 ret = -1;
2122                                 goto err;
2123                         }
2124                         param.fp_check_hash_type = 1;
2125                         param.fp_exclude_hash_type = !!neg_opt;
2126                         break;
2127                 case 'L':
2128                         ret = name2layout(&param.fp_layout, optarg);
2129                         if (ret)
2130                                 goto err;
2131                         param.fp_exclude_layout = !!neg_opt;
2132                         param.fp_check_layout = 1;
2133                         break;
2134                 case 'u':
2135                 case 'U':
2136                         rc = name2uid(&param.fp_uid, optarg);
2137                         if (rc) {
2138                                 param.fp_uid = strtoul(optarg, &endptr, 10);
2139                                 if (*endptr != '\0') {
2140                                         fprintf(stderr, "User/UID: %s cannot "
2141                                                 "be found.\n", optarg);
2142                                         ret = -1;
2143                                         goto err;
2144                                 }
2145                         }
2146                         param.fp_exclude_uid = !!neg_opt;
2147                         param.fp_check_uid = 1;
2148                         break;
2149                 case LFS_POOL_OPT:
2150                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
2151                                 fprintf(stderr,
2152                                         "Pool name %s is too long"
2153                                         " (max is %d)\n", optarg,
2154                                         LOV_MAXPOOLNAME);
2155                                 ret = -1;
2156                                 goto err;
2157                         }
2158                         /* we do check for empty pool because empty pool
2159                          * is used to find V1 lov attributes */
2160                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
2161                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
2162                         param.fp_exclude_pool = !!neg_opt;
2163                         param.fp_check_pool = 1;
2164                         break;
2165                 case 'n':
2166                         param.fp_pattern = (char *)optarg;
2167                         param.fp_exclude_pattern = !!neg_opt;
2168                         break;
2169                 case 'm':
2170                 case 'i':
2171                 case 'O': {
2172                         char *buf, *token, *next, *p;
2173                         int len = 1;
2174                         void *tmp;
2175
2176                         buf = strdup(optarg);
2177                         if (buf == NULL) {
2178                                 ret = -ENOMEM;
2179                                 goto err;
2180                         }
2181
2182                         param.fp_exclude_obd = !!neg_opt;
2183
2184                         token = buf;
2185                         while (token && *token) {
2186                                 token = strchr(token, ',');
2187                                 if (token) {
2188                                         len++;
2189                                         token++;
2190                                 }
2191                         }
2192                         if (c == 'm') {
2193                                 param.fp_exclude_mdt = !!neg_opt;
2194                                 param.fp_num_alloc_mdts += len;
2195                                 tmp = realloc(param.fp_mdt_uuid,
2196                                               param.fp_num_alloc_mdts *
2197                                               sizeof(*param.fp_mdt_uuid));
2198                                 if (tmp == NULL) {
2199                                         ret = -ENOMEM;
2200                                         goto err_free;
2201                                 }
2202
2203                                 param.fp_mdt_uuid = tmp;
2204                         } else {
2205                                 param.fp_exclude_obd = !!neg_opt;
2206                                 param.fp_num_alloc_obds += len;
2207                                 tmp = realloc(param.fp_obd_uuid,
2208                                               param.fp_num_alloc_obds *
2209                                               sizeof(*param.fp_obd_uuid));
2210                                 if (tmp == NULL) {
2211                                         ret = -ENOMEM;
2212                                         goto err_free;
2213                                 }
2214
2215                                 param.fp_obd_uuid = tmp;
2216                         }
2217                         for (token = buf; token && *token; token = next) {
2218                                 struct obd_uuid *puuid;
2219                                 if (c == 'm') {
2220                                         puuid =
2221                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
2222                                 } else {
2223                                         puuid =
2224                                         &param.fp_obd_uuid[param.fp_num_obds++];
2225                                 }
2226                                 p = strchr(token, ',');
2227                                 next = 0;
2228                                 if (p) {
2229                                         *p = 0;
2230                                         next = p+1;
2231                                 }
2232
2233                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
2234                                         ret = -E2BIG;
2235                                         goto err_free;
2236                                 }
2237
2238                                 strncpy(puuid->uuid, token,
2239                                         sizeof(puuid->uuid));
2240                         }
2241 err_free:
2242                         if (buf)
2243                                 free(buf);
2244                         break;
2245                 }
2246                 case 'p':
2247                         param.fp_zero_end = 1;
2248                         break;
2249                 case 'P':
2250                         break;
2251                 case LFS_PROJID_OPT:
2252                         rc = name2projid(&param.fp_projid, optarg);
2253                         if (rc) {
2254                                 param.fp_projid = strtoul(optarg, &endptr, 10);
2255                                 if (*endptr != '\0') {
2256                                         fprintf(stderr,
2257                                                 "Invalid project ID: %s",
2258                                                 optarg);
2259                                         ret = -1;
2260                                         goto err;
2261                                 }
2262                         }
2263                         param.fp_exclude_projid = !!neg_opt;
2264                         param.fp_check_projid = 1;
2265                         break;
2266                 case 's':
2267                         if (optarg[0] == '+') {
2268                                 param.fp_size_sign = -1;
2269                                 optarg++;
2270                         } else if (optarg[0] == '-') {
2271                                 param.fp_size_sign =  1;
2272                                 optarg++;
2273                         }
2274
2275                         ret = llapi_parse_size(optarg, &param.fp_size,
2276                                                &param.fp_size_units, 0);
2277                         if (ret) {
2278                                 fprintf(stderr, "error: bad file size '%s'\n",
2279                                         optarg);
2280                                 goto err;
2281                         }
2282                         param.fp_check_size = 1;
2283                         param.fp_exclude_size = !!neg_opt;
2284                         break;
2285                 case 'S':
2286                         if (optarg[0] == '+') {
2287                                 param.fp_stripe_size_sign = -1;
2288                                 optarg++;
2289                         } else if (optarg[0] == '-') {
2290                                 param.fp_stripe_size_sign =  1;
2291                                 optarg++;
2292                         }
2293
2294                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
2295                                                &param.fp_stripe_size_units, 0);
2296                         if (ret) {
2297                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
2298                                         optarg);
2299                                 goto err;
2300                         }
2301                         param.fp_check_stripe_size = 1;
2302                         param.fp_exclude_stripe_size = !!neg_opt;
2303                         break;
2304                 case 't':
2305                         param.fp_exclude_type = !!neg_opt;
2306                         switch (optarg[0]) {
2307                         case 'b':
2308                                 param.fp_type = S_IFBLK;
2309                                 break;
2310                         case 'c':
2311                                 param.fp_type = S_IFCHR;
2312                                 break;
2313                         case 'd':
2314                                 param.fp_type = S_IFDIR;
2315                                 break;
2316                         case 'f':
2317                                 param.fp_type = S_IFREG;
2318                                 break;
2319                         case 'l':
2320                                 param.fp_type = S_IFLNK;
2321                                 break;
2322                         case 'p':
2323                                 param.fp_type = S_IFIFO;
2324                                 break;
2325                         case 's':
2326                                 param.fp_type = S_IFSOCK;
2327                                 break;
2328                         default:
2329                                 fprintf(stderr, "error: %s: bad type '%s'\n",
2330                                         argv[0], optarg);
2331                                 ret = CMD_HELP;
2332                                 goto err;
2333                         };
2334                         break;
2335                 case 'T':
2336                         if (optarg[0] == '+') {
2337                                 param.fp_mdt_count_sign = -1;
2338                                 optarg++;
2339                         } else if (optarg[0] == '-') {
2340                                 param.fp_mdt_count_sign =  1;
2341                                 optarg++;
2342                         }
2343
2344                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
2345                         if (*endptr != '\0') {
2346                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
2347                                         optarg);
2348                                 ret = -1;
2349                                 goto err;
2350                         }
2351                         param.fp_check_mdt_count = 1;
2352                         param.fp_exclude_mdt_count = !!neg_opt;
2353                         break;
2354                 default:
2355                         ret = CMD_HELP;
2356                         goto err;
2357                 };
2358         }
2359
2360         if (pathstart == -1) {
2361                 fprintf(stderr, "error: %s: no filename|pathname\n",
2362                         argv[0]);
2363                 ret = CMD_HELP;
2364                 goto err;
2365         } else if (pathend == -1) {
2366                 /* no options */
2367                 pathend = argc;
2368         }
2369
2370         do {
2371                 rc = llapi_find(argv[pathstart], &param);
2372                 if (rc != 0 && ret == 0)
2373                         ret = rc;
2374         } while (++pathstart < pathend);
2375
2376         if (ret)
2377                 fprintf(stderr, "error: %s failed for %s.\n",
2378                         argv[0], argv[optind - 1]);
2379 err:
2380         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
2381                 free(param.fp_obd_uuid);
2382
2383         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
2384                 free(param.fp_mdt_uuid);
2385
2386         return ret;
2387 }
2388
2389 static int lfs_getstripe_internal(int argc, char **argv,
2390                                   struct find_param *param)
2391 {
2392         struct option long_opts[] = {
2393         { .val = LFS_COMP_COUNT_OPT,
2394                         .name = "comp-count",   .has_arg = no_argument },
2395         { .val = LFS_COMP_COUNT_OPT,
2396                 .name = "component-count",      .has_arg = no_argument },
2397         { .val = LFS_COMP_FLAGS_OPT,
2398                         .name = "comp-flags",   .has_arg = optional_argument },
2399         { .val = LFS_COMP_FLAGS_OPT,
2400                 .name = "component-flags",      .has_arg = optional_argument },
2401         { .val = LFS_COMP_START_OPT,
2402                         .name = "comp-start",   .has_arg = optional_argument },
2403         { .val = LFS_COMP_START_OPT,
2404                 .name = "component-start",      .has_arg = optional_argument },
2405 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
2406         /* This formerly implied "stripe-count", but was explicitly
2407          * made "stripe-count" for consistency with other options,
2408          * and to separate it from "mdt-count" when DNE arrives. */
2409         { .val = 'c',   .name = "count",        .has_arg = no_argument },
2410 #endif
2411         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
2412         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
2413         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
2414         { .val = 'D',   .name = "default",      .has_arg = no_argument },
2415         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
2416         { .val = 'E',   .name = "component-end",
2417                                                 .has_arg = optional_argument },
2418         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
2419         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
2420         /* dirstripe { .val = 'H',      .name = "mdt-hash",
2421          *             .has_arg = required_argument }, */
2422 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
2423         /* This formerly implied "stripe-index", but was explicitly
2424          * made "stripe-index" for consistency with other options,
2425          * and to separate it from "mdt-index" when DNE arrives. */
2426         { .val = 'i',   .name = "index",        .has_arg = no_argument },
2427 #endif
2428         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
2429         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
2430         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
2431         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
2432         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
2433         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
2434         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
2435         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
2436 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2437         { .val = 'M',   .name = "mdt-index",    .has_arg = no_argument },
2438         { .val = 'M',   .name = "mdt_index",    .has_arg = no_argument },
2439 #endif
2440 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
2441         /* This formerly implied "stripe-index", but was confusing
2442          * with "file offset" (which will eventually be needed for
2443          * with different layouts by offset), so deprecate it. */
2444         { .val = 'o',   .name = "offset",       .has_arg = no_argument },
2445 #endif
2446         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
2447         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
2448         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
2449         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
2450         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
2451         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
2452 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
2453         /* This formerly implied "--stripe-size", but was confusing
2454          * with "lfs find --size|-s", which means "file size", so use
2455          * the consistent "--stripe-size|-S" for all commands. */
2456         { .val = 's',   .name = "size",         .has_arg = no_argument },
2457 #endif
2458         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
2459         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
2460         /* dirstripe { .val = 'T',      .name = "mdt-count",
2461          *             .has_arg = required_argument }, */
2462         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
2463         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
2464         { .name = NULL } };
2465         int c, rc;
2466         char *end, *tmp;
2467
2468         while ((c = getopt_long(argc, argv, "cdDE::FghiI::LmMoO:pqrRsSvy",
2469                                 long_opts, NULL)) != -1) {
2470                 switch (c) {
2471                 case 'c':
2472                         if (strcmp(argv[optind - 1], "--count") == 0)
2473                                 fprintf(stderr, "warning: '--count' deprecated,"
2474                                         " use '--stripe-count' instead\n");
2475                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
2476                                 param->fp_verbose |= VERBOSE_COUNT;
2477                                 param->fp_max_depth = 0;
2478                         }
2479                         break;
2480                 case LFS_COMP_COUNT_OPT:
2481                         param->fp_verbose |= VERBOSE_COMP_COUNT;
2482                         param->fp_max_depth = 0;
2483                         break;
2484                 case LFS_COMP_FLAGS_OPT:
2485                         if (optarg != NULL) {
2486                                 __u32 *flags = &param->fp_comp_flags;
2487                                 rc = comp_str2flags(flags, optarg);
2488                                 if (rc != 0) {
2489                                         fprintf(stderr, "error: %s bad "
2490                                                 "component flags '%s'.\n",
2491                                                 argv[0], optarg);
2492                                         return CMD_HELP;
2493                                 } else {
2494                                         param->fp_check_comp_flags = 1;
2495                                         param->fp_exclude_comp_flags =
2496                                                 comp_flags_is_neg(*flags);
2497                                         comp_flags_clear_neg(flags);
2498                                 }
2499                         } else {
2500                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
2501                                 param->fp_max_depth = 0;
2502                         }
2503                         break;
2504                 case LFS_COMP_START_OPT:
2505                         if (optarg != NULL) {
2506                                 tmp = optarg;
2507                                 if (tmp[0] == '+') {
2508                                         param->fp_comp_start_sign = -1;
2509                                         tmp++;
2510                                 } else if (tmp[0] == '-') {
2511                                         param->fp_comp_start_sign = 1;
2512                                         tmp++;
2513                                 }
2514                                 rc = llapi_parse_size(tmp,
2515                                                 &param->fp_comp_start,
2516                                                 &param->fp_comp_start_units, 0);
2517                                 if (rc != 0) {
2518                                         fprintf(stderr, "error: %s bad "
2519                                                 "component start '%s'.\n",
2520                                                 argv[0], tmp);
2521                                         return CMD_HELP;
2522                                 } else {
2523                                         param->fp_check_comp_start = 1;
2524                                 }
2525                         } else {
2526                                 param->fp_verbose |= VERBOSE_COMP_START;
2527                                 param->fp_max_depth = 0;
2528                         }
2529                         break;
2530                 case 'd':
2531                         param->fp_max_depth = 0;
2532                         break;
2533                 case 'D':
2534                         param->fp_get_default_lmv = 1;
2535                         break;
2536                 case 'E':
2537                         if (optarg != NULL) {
2538                                 tmp = optarg;
2539                                 if (tmp[0] == '+') {
2540                                         param->fp_comp_end_sign = -1;
2541                                         tmp++;
2542                                 } else if (tmp[0] == '-') {
2543                                         param->fp_comp_end_sign = 1;
2544                                         tmp++;
2545                                 }
2546
2547                                 if (arg_is_eof(tmp)) {
2548                                         param->fp_comp_end = LUSTRE_EOF;
2549                                         param->fp_comp_end_units = 1;
2550                                         rc = 0;
2551                                 } else {
2552                                         rc = llapi_parse_size(tmp,
2553                                                 &param->fp_comp_end,
2554                                                 &param->fp_comp_end_units, 0);
2555                                 }
2556                                 if (rc != 0) {
2557                                         fprintf(stderr, "error: %s bad "
2558                                                 "component end '%s'.\n",
2559                                                 argv[0], tmp);
2560                                         return CMD_HELP;
2561                                 }
2562                                 param->fp_check_comp_end = 1;
2563                         } else {
2564                                 param->fp_verbose |= VERBOSE_COMP_END;
2565                                 param->fp_max_depth = 0;
2566                         }
2567                         break;
2568                 case 'F':
2569                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
2570                                 param->fp_verbose |= VERBOSE_DFID;
2571                                 param->fp_max_depth = 0;
2572                         }
2573                         break;
2574                 case 'g':
2575                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
2576                                 param->fp_verbose |= VERBOSE_GENERATION;
2577                                 param->fp_max_depth = 0;
2578                         }
2579                         break;
2580 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
2581                 case 'o':
2582                         fprintf(stderr, "warning: '--offset|-o' deprecated, "
2583                                 "use '--stripe-index|-i' instead\n");
2584 #endif
2585                 case 'i':
2586 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
2587                         if (strcmp(argv[optind - 1], "--index") == 0)
2588                                 fprintf(stderr, "warning: '--index' deprecated"
2589                                         ", use '--stripe-index' instead\n");
2590 #endif
2591                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
2592                                 param->fp_verbose |= VERBOSE_OFFSET;
2593                                 param->fp_max_depth = 0;
2594                         }
2595                         break;
2596                 case 'I':
2597                         if (optarg != NULL) {
2598                                 param->fp_comp_id = strtoul(optarg, &end, 0);
2599                                 if (*end != '\0' || param->fp_comp_id == 0 ||
2600                                     param->fp_comp_id > LCME_ID_MAX) {
2601                                         fprintf(stderr, "error: %s bad "
2602                                                 "component id '%s'\n",
2603                                                 argv[0], optarg);
2604                                         return CMD_HELP;
2605                                 } else {
2606                                         param->fp_check_comp_id = 1;
2607                                 }
2608                         } else {
2609                                 param->fp_max_depth = 0;
2610                                 param->fp_verbose |= VERBOSE_COMP_ID;
2611                         }
2612                         break;
2613                 case 'L':
2614                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
2615                                 param->fp_verbose |= VERBOSE_LAYOUT;
2616                                 param->fp_max_depth = 0;
2617                         }
2618                         break;
2619 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2620                 case 'M':
2621 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 11, 53, 0)
2622                         fprintf(stderr, "warning: '-M' deprecated"
2623                                 ", use '-m' instead\n");
2624 #endif
2625 #endif
2626                 case 'm':
2627                         if (!(param->fp_verbose & VERBOSE_DETAIL))
2628                                 param->fp_max_depth = 0;
2629                         param->fp_verbose |= VERBOSE_MDTINDEX;
2630                         break;
2631                 case 'O':
2632                         if (param->fp_obd_uuid) {
2633                                 fprintf(stderr,
2634                                         "error: %s: only one obduuid allowed",
2635                                         argv[0]);
2636                                 return CMD_HELP;
2637                         }
2638                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
2639                         break;
2640                 case 'p':
2641                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
2642                                 param->fp_verbose |= VERBOSE_POOL;
2643                                 param->fp_max_depth = 0;
2644                         }
2645                         break;
2646                 case 'q':
2647                         param->fp_quiet++;
2648                         break;
2649                 case 'r':
2650                         param->fp_recursive = 1;
2651                         break;
2652                 case 'R':
2653                         param->fp_raw = 1;
2654                         break;
2655 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
2656                 case 's':
2657                         fprintf(stderr, "warning: '--size|-s' deprecated, "
2658                                 "use '--stripe-size|-S' instead\n");
2659 #endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0) */
2660                 case 'S':
2661                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
2662                                 param->fp_verbose |= VERBOSE_SIZE;
2663                                 param->fp_max_depth = 0;
2664                         }
2665                         break;
2666                 case 'v':
2667                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
2668                         break;
2669                 case 'y':
2670                         param->fp_yaml = 1;
2671                         break;
2672                 default:
2673                         return CMD_HELP;
2674                 }
2675         }
2676
2677         if (optind >= argc)
2678                 return CMD_HELP;
2679
2680         if (param->fp_recursive)
2681                 param->fp_max_depth = -1;
2682         else if (param->fp_verbose & VERBOSE_DETAIL)
2683                 param->fp_max_depth = 1;
2684
2685         if (!param->fp_verbose)
2686                 param->fp_verbose = VERBOSE_DEFAULT;
2687         if (param->fp_quiet)
2688                 param->fp_verbose = VERBOSE_OBJID;
2689
2690         do {
2691                 rc = llapi_getstripe(argv[optind], param);
2692         } while (++optind < argc && !rc);
2693
2694         if (rc)
2695                 fprintf(stderr, "error: %s failed for %s.\n",
2696                         argv[0], argv[optind - 1]);
2697         return rc;
2698 }
2699
2700 static int lfs_tgts(int argc, char **argv)
2701 {
2702         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
2703         struct find_param param;
2704         int index = 0, rc=0;
2705
2706         if (argc > 2)
2707                 return CMD_HELP;
2708
2709         if (argc == 2 && !realpath(argv[1], path)) {
2710                 rc = -errno;
2711                 fprintf(stderr, "error: invalid path '%s': %s\n",
2712                         argv[1], strerror(-rc));
2713                 return rc;
2714         }
2715
2716         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
2717                 /* Check if we have a mount point */
2718                 if (mntdir[0] == '\0')
2719                         continue;
2720
2721                 memset(&param, 0, sizeof(param));
2722                 if (!strcmp(argv[0], "mdts"))
2723                         param.fp_get_lmv = 1;
2724
2725                 rc = llapi_ostlist(mntdir, &param);
2726                 if (rc) {
2727                         fprintf(stderr, "error: %s: failed on %s\n",
2728                                 argv[0], mntdir);
2729                 }
2730                 if (path[0] != '\0')
2731                         break;
2732                 memset(mntdir, 0, PATH_MAX);
2733         }
2734
2735         return rc;
2736 }
2737
2738 static int lfs_getstripe(int argc, char **argv)
2739 {
2740         struct find_param param = { 0 };
2741
2742         param.fp_max_depth = 1;
2743         return lfs_getstripe_internal(argc, argv, &param);
2744 }
2745
2746 /* functions */
2747 static int lfs_getdirstripe(int argc, char **argv)
2748 {
2749         struct find_param param = { 0 };
2750         struct option long_opts[] = {
2751 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2752         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
2753 #endif
2754         { .val = 'D',   .name = "default",      .has_arg = no_argument },
2755         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
2756         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
2757         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
2758         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
2759 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2760         { .val = 't',   .name = "mdt-hash",     .has_arg = no_argument },
2761 #endif
2762         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
2763         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
2764         { .name = NULL } };
2765         int c, rc;
2766
2767         param.fp_get_lmv = 1;
2768
2769         while ((c = getopt_long(argc, argv,
2770                                 "cDHiO:rtTy", long_opts, NULL)) != -1)
2771         {
2772                 switch (c) {
2773                 case 'O':
2774                         if (param.fp_obd_uuid) {
2775                                 fprintf(stderr,
2776                                         "error: %s: only one obduuid allowed",
2777                                         argv[0]);
2778                                 return CMD_HELP;
2779                         }
2780                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
2781                         break;
2782 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2783                 case 'c':
2784 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 10, 50, 0)
2785                         fprintf(stderr, "warning: '-c' deprecated"
2786                                 ", use '-T' instead\n");
2787 #endif
2788 #endif
2789                 case 'T':
2790                         param.fp_verbose |= VERBOSE_COUNT;
2791                         break;
2792                 case 'i':
2793                         param.fp_verbose |= VERBOSE_OFFSET;
2794                         break;
2795 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2796                 case 't':
2797 #endif
2798                 case 'H':
2799                         param.fp_verbose |= VERBOSE_HASH_TYPE;
2800                         break;
2801                 case 'D':
2802                         param.fp_get_default_lmv = 1;
2803                         break;
2804                 case 'r':
2805                         param.fp_recursive = 1;
2806                         break;
2807                 case 'y':
2808                         param.fp_yaml = 1;
2809                         break;
2810                 default:
2811                         return CMD_HELP;
2812                 }
2813         }
2814
2815         if (optind >= argc)
2816                 return CMD_HELP;
2817
2818         if (param.fp_recursive)
2819                 param.fp_max_depth = -1;
2820
2821         if (!param.fp_verbose)
2822                 param.fp_verbose = VERBOSE_DEFAULT;
2823
2824         do {
2825                 rc = llapi_getstripe(argv[optind], &param);
2826         } while (++optind < argc && !rc);
2827
2828         if (rc)
2829                 fprintf(stderr, "error: %s failed for %s.\n",
2830                         argv[0], argv[optind - 1]);
2831         return rc;
2832 }
2833
2834 /* functions */
2835 static int lfs_setdirstripe(int argc, char **argv)
2836 {
2837         char                    *dname;
2838         int                     result;
2839         unsigned int            stripe_offset = -1;
2840         unsigned int            stripe_count = 1;
2841         enum lmv_hash_type      hash_type;
2842         char                    *end;
2843         int                     c;
2844         char                    *stripe_offset_opt = NULL;
2845         char                    *stripe_count_opt = NULL;
2846         char                    *stripe_hash_opt = NULL;
2847         char                    *mode_opt = NULL;
2848         bool                    default_stripe = false;
2849         mode_t                  mode = S_IRWXU | S_IRWXG | S_IRWXO;
2850         mode_t                  previous_mode = 0;
2851         bool                    delete = false;
2852
2853         struct option long_opts[] = {
2854 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2855         { .val = 'c',   .name = "count",        .has_arg = required_argument },
2856 #endif
2857         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
2858         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
2859 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2860         { .val = 'i',   .name = "index",        .has_arg = required_argument },
2861 #endif
2862         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
2863         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
2864 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2865         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
2866         { .val = 't',   .name = "mdt-hash",     .has_arg = required_argument },
2867 #endif
2868                 {"mdt-hash",    required_argument, 0, 'H'},
2869 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2870         { .val = 'D',   .name = "default_stripe",
2871                                                 .has_arg = no_argument },
2872 #endif
2873         { .val = 'D',   .name = "default",      .has_arg = no_argument },
2874         { .name = NULL } };
2875
2876         while ((c = getopt_long(argc, argv, "c:dDi:H:m:t:", long_opts,
2877                                 NULL)) >= 0) {
2878                 switch (c) {
2879                 case 0:
2880                         /* Long options. */
2881                         break;
2882                 case 'c':
2883 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 11, 53, 0)
2884                         if (strcmp(argv[optind - 1], "--count") == 0)
2885                                 fprintf(stderr, "warning: '--count' deprecated"
2886                                         ", use '--mdt-count' instead\n");
2887 #endif
2888                         stripe_count_opt = optarg;
2889                         break;
2890                 case 'd':
2891                         delete = true;
2892                         default_stripe = true;
2893                         break;
2894                 case 'D':
2895                         default_stripe = true;
2896                         break;
2897                 case 'i':
2898 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 11, 53, 0)
2899                         if (strcmp(argv[optind - 1], "--index") == 0)
2900                                 fprintf(stderr, "warning: '--index' deprecated"
2901                                         ", use '--mdt-index' instead\n");
2902 #endif
2903                         stripe_offset_opt = optarg;
2904                         break;
2905                 case 'm':
2906                         mode_opt = optarg;
2907                         break;
2908 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2909                 case 't':
2910 #endif
2911                 case 'H':
2912 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 11, 53, 0)
2913                         if (strcmp(argv[optind - 1], "--hash-type") == 0)
2914                                 fprintf(stderr, "warning: '--hash-type' "
2915                                         "deprecated, use '--mdt-hash' "
2916                                         "instead\n");
2917 #endif
2918                         stripe_hash_opt = optarg;
2919                         break;
2920                 default:
2921                         fprintf(stderr, "error: %s: option '%s' "
2922                                         "unrecognized\n",
2923                                         argv[0], argv[optind - 1]);
2924                         return CMD_HELP;
2925                 }
2926         }
2927
2928         if (optind == argc) {
2929                 fprintf(stderr, "error: %s: missing dirname\n",
2930                         argv[0]);
2931                 return CMD_HELP;
2932         }
2933
2934         if (!delete && stripe_offset_opt == NULL && stripe_count_opt == NULL) {
2935                 fprintf(stderr, "error: %s: missing stripe offset and count.\n",
2936                         argv[0]);
2937                 return CMD_HELP;
2938         }
2939
2940         if (stripe_offset_opt != NULL) {
2941                 /* get the stripe offset */
2942                 stripe_offset = strtoul(stripe_offset_opt, &end, 0);
2943                 if (*end != '\0') {
2944                         fprintf(stderr, "error: %s: bad stripe offset '%s'\n",
2945                                 argv[0], stripe_offset_opt);
2946                         return CMD_HELP;
2947                 }
2948         }
2949
2950         if (delete) {
2951                 if (stripe_offset_opt != NULL || stripe_count_opt != NULL) {
2952                         fprintf(stderr, "error: %s: cannot specify -d with -s,"
2953                                 " or -i options.\n", argv[0]);
2954                         return CMD_HELP;
2955                 } else {
2956                         stripe_count = 0;
2957                 }
2958         }
2959
2960
2961         if (mode_opt != NULL) {
2962                 mode = strtoul(mode_opt, &end, 8);
2963                 if (*end != '\0') {
2964                         fprintf(stderr, "error: %s: bad mode '%s'\n",
2965                                 argv[0], mode_opt);
2966                         return CMD_HELP;
2967                 }
2968                 previous_mode = umask(0);
2969         }
2970
2971         if (stripe_hash_opt == NULL) {
2972                 hash_type = LMV_HASH_TYPE_FNV_1A_64;
2973         } else {
2974                 hash_type = check_hashtype(stripe_hash_opt);
2975                 if (hash_type == 0) {
2976                         fprintf(stderr,
2977                                 "error: %s: bad stripe hash type '%s'\n",
2978                                 argv[0], stripe_hash_opt);
2979                         return CMD_HELP;
2980                 }
2981         }
2982
2983         /* get the stripe count */
2984         if (stripe_count_opt != NULL) {
2985                 stripe_count = strtoul(stripe_count_opt, &end, 0);
2986                 if (*end != '\0') {
2987                         fprintf(stderr, "error: %s: bad stripe count '%s'\n",
2988                                 argv[0], stripe_count_opt);
2989                         return CMD_HELP;
2990                 }
2991         }
2992
2993         dname = argv[optind];
2994         do {
2995                 if (default_stripe) {
2996                         result = llapi_dir_set_default_lmv_stripe(dname,
2997                                                     stripe_offset, stripe_count,
2998                                                     hash_type, NULL);
2999                 } else {
3000                         result = llapi_dir_create_pool(dname, mode,
3001                                                        stripe_offset,
3002                                                        stripe_count, hash_type,
3003                                                        NULL);
3004                 }
3005
3006                 if (result) {
3007                         fprintf(stderr, "error: %s: create stripe dir '%s' "
3008                                 "failed\n", argv[0], dname);
3009                         break;
3010                 }
3011                 dname = argv[++optind];
3012         } while (dname != NULL);
3013
3014         if (mode_opt != NULL)
3015                 umask(previous_mode);
3016
3017         return result;
3018 }
3019
3020 /* functions */
3021 static int lfs_rmentry(int argc, char **argv)
3022 {
3023         char *dname;
3024         int   index;
3025         int   result = 0;
3026
3027         if (argc <= 1) {
3028                 fprintf(stderr, "error: %s: missing dirname\n",
3029                         argv[0]);
3030                 return CMD_HELP;
3031         }
3032
3033         index = 1;
3034         dname = argv[index];
3035         while (dname != NULL) {
3036                 result = llapi_direntry_remove(dname);
3037                 if (result) {
3038                         fprintf(stderr, "error: %s: remove dir entry '%s' "
3039                                 "failed\n", argv[0], dname);
3040                         break;
3041                 }
3042                 dname = argv[++index];
3043         }
3044         return result;
3045 }
3046
3047 static int lfs_mv(int argc, char **argv)
3048 {
3049         struct  find_param param = {
3050                 .fp_max_depth = -1,
3051                 .fp_mdt_index = -1,
3052         };
3053         char   *end;
3054         int     c;
3055         int     rc = 0;
3056         struct option long_opts[] = {
3057         { .val = 'M',   .name = "mdt-index",    .has_arg = required_argument },
3058         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
3059         { .name = NULL } };
3060
3061         while ((c = getopt_long(argc, argv, "M:v", long_opts, NULL)) != -1) {
3062                 switch (c) {
3063                 case 'M': {
3064                         param.fp_mdt_index = strtoul(optarg, &end, 0);
3065                         if (*end != '\0') {
3066                                 fprintf(stderr, "%s: invalid MDT index'%s'\n",
3067                                         argv[0], optarg);
3068                                 return CMD_HELP;
3069                         }
3070                         break;
3071                 }
3072                 case 'v': {
3073                         param.fp_verbose = VERBOSE_DETAIL;
3074                         break;
3075                 }
3076                 default:
3077                         fprintf(stderr, "error: %s: unrecognized option '%s'\n",
3078                                 argv[0], argv[optind - 1]);
3079                         return CMD_HELP;
3080                 }
3081         }
3082
3083         if (param.fp_mdt_index == -1) {
3084                 fprintf(stderr, "%s: MDT index must be specified\n", argv[0]);
3085                 return CMD_HELP;
3086         }
3087
3088         if (optind >= argc) {
3089                 fprintf(stderr, "%s: missing operand path\n", argv[0]);
3090                 return CMD_HELP;
3091         }
3092
3093         param.fp_migrate = 1;
3094         rc = llapi_migrate_mdt(argv[optind], &param);
3095         if (rc != 0)
3096                 fprintf(stderr, "%s: cannot migrate '%s' to MDT%04x: %s\n",
3097                         argv[0], argv[optind], param.fp_mdt_index,
3098                         strerror(-rc));
3099         return rc;
3100 }
3101
3102 static int lfs_osts(int argc, char **argv)
3103 {
3104         return lfs_tgts(argc, argv);
3105 }
3106
3107 static int lfs_mdts(int argc, char **argv)
3108 {
3109         return lfs_tgts(argc, argv);
3110 }
3111
3112 #define COOK(value)                                                     \
3113 ({                                                                      \
3114         int radix = 0;                                                  \
3115         while (value > 1024) {                                          \
3116                 value /= 1024;                                          \
3117                 radix++;                                                \
3118         }                                                               \
3119         radix;                                                          \
3120 })
3121 #define UUF     "%-20s"
3122 #define CSF     "%11s"
3123 #define CDF     "%11llu"
3124 #define HDF     "%8.1f%c"
3125 #define RSF     "%4s"
3126 #define RDF     "%3d%%"
3127
3128 enum mntdf_flags {
3129         MNTDF_INODES    = 0x0001,
3130         MNTDF_COOKED    = 0x0002,
3131         MNTDF_LAZY      = 0x0004,
3132         MNTDF_VERBOSE   = 0x0008,
3133 };
3134
3135 static int showdf(char *mntdir, struct obd_statfs *stat,
3136                   char *uuid, enum mntdf_flags flags,
3137                   char *type, int index, int rc)
3138 {
3139         long long avail, used, total;
3140         double ratio = 0;
3141         char *suffix = "KMGTPEZY";
3142         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
3143         char tbuf[3 * sizeof(__u64)];
3144         char ubuf[3 * sizeof(__u64)];
3145         char abuf[3 * sizeof(__u64)];
3146         char rbuf[3 * sizeof(__u64)];
3147
3148         if (!uuid || !stat)
3149                 return -EINVAL;
3150
3151         switch (rc) {
3152         case 0:
3153                 if (flags & MNTDF_INODES) {
3154                         avail = stat->os_ffree;
3155                         used = stat->os_files - stat->os_ffree;
3156                         total = stat->os_files;
3157                 } else {
3158                         int shift = flags & MNTDF_COOKED ? 0 : 10;
3159
3160                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
3161                         used  = ((stat->os_blocks - stat->os_bfree) *
3162                                  stat->os_bsize) >> shift;
3163                         total = (stat->os_blocks * stat->os_bsize) >> shift;
3164                 }
3165
3166                 if ((used + avail) > 0)
3167                         ratio = (double)used / (double)(used + avail);
3168
3169                 if (flags & MNTDF_COOKED) {
3170                         int i;
3171                         double cook_val;
3172
3173                         cook_val = (double)total;
3174                         i = COOK(cook_val);
3175                         if (i > 0)
3176                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
3177                                          suffix[i - 1]);
3178                         else
3179                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
3180
3181                         cook_val = (double)used;
3182                         i = COOK(cook_val);
3183                         if (i > 0)
3184                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
3185                                          suffix[i - 1]);
3186                         else
3187                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
3188
3189                         cook_val = (double)avail;
3190                         i = COOK(cook_val);
3191                         if (i > 0)
3192                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
3193                                          suffix[i - 1]);
3194                         else
3195                                 snprintf(abuf, sizeof(abuf), CDF, avail);
3196                 } else {
3197                         snprintf(tbuf, sizeof(tbuf), CDF, total);
3198                         snprintf(ubuf, sizeof(tbuf), CDF, used);
3199                         snprintf(abuf, sizeof(tbuf), CDF, avail);
3200                 }
3201
3202                 sprintf(rbuf, RDF, (int)(ratio * 100 + 0.5));
3203                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
3204                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
3205                 if (type)
3206                         printf("[%s:%d]", type, index);
3207
3208                 if (stat->os_state) {
3209                         /*
3210                          * Each character represents the matching
3211                          * OS_STATE_* bit.
3212                          */
3213                         const char state_names[] = "DRSI";
3214                         __u32      state;
3215                         __u32      i;
3216
3217                         printf(" ");
3218                         for (i = 0, state = stat->os_state;
3219                              state && i < sizeof(state_names); i++) {
3220                                 if (!(state & (1 << i)))
3221                                         continue;
3222                                 printf("%c", state_names[i]);
3223                                 state ^= 1 << i;
3224                         }
3225                 }
3226
3227                 printf("\n");
3228                 break;
3229         case -ENODATA:
3230                 printf(UUF": inactive device\n", uuid);
3231                 break;
3232         default:
3233                 printf(UUF": %s\n", uuid, strerror(-rc));
3234                 break;
3235         }
3236
3237         return 0;
3238 }
3239
3240 struct ll_stat_type {
3241         int   st_op;
3242         char *st_name;
3243 };
3244
3245 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags)
3246 {
3247         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
3248         struct obd_uuid uuid_buf;
3249         char *poolname = NULL;
3250         struct ll_stat_type types[] = {
3251                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
3252                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
3253                 { .st_name = NULL } };
3254         struct ll_stat_type *tp;
3255         __u64 ost_ffree = 0;
3256         __u32 index;
3257         __u32 type;
3258         int fd;
3259         int rc = 0;
3260         int rc2;
3261
3262         if (pool) {
3263                 poolname = strchr(pool, '.');
3264                 if (poolname != NULL) {
3265                         if (strncmp(fsname, pool, strlen(fsname))) {
3266                                 fprintf(stderr, "filesystem name incorrect\n");
3267                                 return -ENODEV;
3268                         }
3269                         poolname++;
3270                 } else
3271                         poolname = pool;
3272         }
3273
3274         fd = open(mntdir, O_RDONLY);
3275         if (fd < 0) {
3276                 rc = -errno;
3277                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
3278                         strerror(errno));
3279                 return rc;
3280         }
3281
3282         if (flags & MNTDF_INODES)
3283                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
3284                        "UUID", "Inodes", "IUsed", "IFree",
3285                        "IUse%", "Mounted on");
3286         else
3287                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
3288                        "UUID", flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
3289                        "Used", "Available", "Use%", "Mounted on");
3290
3291         for (tp = types; tp->st_name != NULL; tp++) {
3292                 for (index = 0; ; index++) {
3293                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
3294                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
3295                         type = flags & MNTDF_LAZY ?
3296                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
3297                         rc2 = llapi_obd_fstatfs(fd, type, index,
3298                                                &stat_buf, &uuid_buf);
3299                         if (rc2 == -ENODEV)
3300                                 break;
3301                         if (rc2 == -EAGAIN)
3302                                 continue;
3303                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
3304                                 if (!(flags & MNTDF_VERBOSE))
3305                                         continue;
3306                         } else if (rc2 < 0 && rc == 0) {
3307                                 rc = rc2;
3308                         }
3309
3310                         if (poolname && tp->st_op == LL_STATFS_LOV &&
3311                             llapi_search_ost(fsname, poolname,
3312                                              obd_uuid2str(&uuid_buf)) != 1)
3313                                 continue;
3314
3315                         /* the llapi_obd_statfs() call may have returned with
3316                          * an error, but if it filled in uuid_buf we will at
3317                          * lease use that to print out a message for that OBD.
3318                          * If we didn't get anything in the uuid_buf, then fill
3319                          * it in so that we can print an error message. */
3320                         if (uuid_buf.uuid[0] == '\0')
3321                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
3322                                          "%s%04x", tp->st_name, index);
3323                         showdf(mntdir, &stat_buf, obd_uuid2str(&uuid_buf),
3324                                flags, tp->st_name, index, rc2);
3325
3326                         if (rc2 == 0) {
3327                                 if (tp->st_op == LL_STATFS_LMV) {
3328                                         sum.os_ffree += stat_buf.os_ffree;
3329                                         sum.os_files += stat_buf.os_files;
3330                                 } else /* if (tp->st_op == LL_STATFS_LOV) */ {
3331                                         sum.os_blocks += stat_buf.os_blocks *
3332                                                 stat_buf.os_bsize;
3333                                         sum.os_bfree  += stat_buf.os_bfree *
3334                                                 stat_buf.os_bsize;
3335                                         sum.os_bavail += stat_buf.os_bavail *
3336                                                 stat_buf.os_bsize;
3337                                         ost_ffree += stat_buf.os_ffree;
3338                                 }
3339                         }
3340                 }
3341         }
3342
3343         close(fd);
3344
3345         /* If we don't have as many objects free on the OST as inodes
3346          * on the MDS, we reduce the total number of inodes to
3347          * compensate, so that the "inodes in use" number is correct.
3348          * Matches ll_statfs_internal() so the results are consistent. */
3349         if (ost_ffree < sum.os_ffree) {
3350                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
3351                 sum.os_ffree = ost_ffree;
3352         }
3353         printf("\n");
3354         showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
3355         printf("\n");
3356
3357         return rc;
3358 }
3359
3360 static int lfs_df(int argc, char **argv)
3361 {
3362         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
3363         enum mntdf_flags flags = 0;
3364         int c, rc = 0, index = 0;
3365         char fsname[PATH_MAX] = "", *pool_name = NULL;
3366         struct option long_opts[] = {
3367         { .val = 'h',   .name = "human-readable",
3368                                                 .has_arg = no_argument },
3369         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
3370         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
3371         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3372         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
3373         { .name = NULL} };
3374
3375         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
3376                 switch (c) {
3377                 case 'h':
3378                         flags |= MNTDF_COOKED;
3379                         break;
3380                 case 'i':
3381                         flags |= MNTDF_INODES;
3382                         break;
3383                 case 'l':
3384                         flags |= MNTDF_LAZY;
3385                         break;
3386                 case 'p':
3387                         pool_name = optarg;
3388                         break;
3389                 case 'v':
3390                         flags |= MNTDF_VERBOSE;
3391                         break;
3392                 default:
3393                         return CMD_HELP;
3394                 }
3395         }
3396         if (optind < argc && !realpath(argv[optind], path)) {
3397                 rc = -errno;
3398                 fprintf(stderr, "error: invalid path '%s': %s\n",
3399                         argv[optind], strerror(-rc));
3400                 return rc;
3401         }
3402
3403         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
3404                 /* Check if we have a mount point */
3405                 if (mntdir[0] == '\0')
3406                         continue;
3407
3408                 rc = mntdf(mntdir, fsname, pool_name, flags);
3409                 if (rc || path[0] != '\0')
3410                         break;
3411                 fsname[0] = '\0'; /* avoid matching in next loop */
3412                 mntdir[0] = '\0'; /* avoid matching in next loop */
3413         }
3414
3415         return rc;
3416 }
3417
3418 static int lfs_getname(int argc, char **argv)
3419 {
3420         char mntdir[PATH_MAX] = "", path[PATH_MAX] = "", fsname[PATH_MAX] = "";
3421         int rc = 0, index = 0, c;
3422         char buf[sizeof(struct obd_uuid)];
3423
3424         while ((c = getopt(argc, argv, "h")) != -1)
3425                 return CMD_HELP;
3426
3427         if (optind == argc) { /* no paths specified, get all paths. */
3428                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
3429                         rc = llapi_getname(mntdir, buf, sizeof(buf));
3430                         if (rc < 0) {
3431                                 fprintf(stderr,
3432                                         "cannot get name for `%s': %s\n",
3433                                         mntdir, strerror(-rc));
3434                                 break;
3435                         }
3436
3437                         printf("%s %s\n", buf, mntdir);
3438
3439                         path[0] = fsname[0] = mntdir[0] = 0;
3440                 }
3441         } else { /* paths specified, only attempt to search these. */
3442                 for (; optind < argc; optind++) {
3443                         rc = llapi_getname(argv[optind], buf, sizeof(buf));
3444                         if (rc < 0) {
3445                                 fprintf(stderr,
3446                                         "cannot get name for `%s': %s\n",
3447                                         argv[optind], strerror(-rc));
3448                                 break;
3449                         }
3450
3451                         printf("%s %s\n", buf, argv[optind]);
3452                 }
3453         }
3454         return rc;
3455 }
3456
3457 static int lfs_check(int argc, char **argv)
3458 {
3459         int rc;
3460         char mntdir[PATH_MAX] = {'\0'};
3461         int num_types = 1;
3462         char *obd_types[2];
3463         char obd_type1[4];
3464         char obd_type2[4];
3465
3466         if (argc != 2)
3467                 return CMD_HELP;
3468
3469         obd_types[0] = obd_type1;
3470         obd_types[1] = obd_type2;
3471
3472         if (strcmp(argv[1], "osts") == 0) {
3473                 strcpy(obd_types[0], "osc");
3474         } else if (strcmp(argv[1], "mds") == 0) {
3475                 strcpy(obd_types[0], "mdc");
3476         } else if (strcmp(argv[1], "servers") == 0) {
3477                 num_types = 2;
3478                 strcpy(obd_types[0], "osc");
3479                 strcpy(obd_types[1], "mdc");
3480         } else {
3481                 fprintf(stderr, "error: %s: option '%s' unrecognized\n",
3482                                 argv[0], argv[1]);
3483                         return CMD_HELP;
3484         }
3485
3486         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
3487         if (rc < 0 || mntdir[0] == '\0') {
3488                 fprintf(stderr, "No suitable Lustre mount found\n");
3489                 return rc;
3490         }
3491
3492         rc = llapi_target_check(num_types, obd_types, mntdir);
3493         if (rc)
3494                 fprintf(stderr, "error: %s: %s status failed\n",
3495                                 argv[0],argv[1]);
3496
3497         return rc;
3498
3499 }
3500
3501 #ifdef HAVE_SYS_QUOTA_H
3502 #define ARG2INT(nr, str, msg)                                           \
3503 do {                                                                    \
3504         char *endp;                                                     \
3505         nr = strtol(str, &endp, 0);                                     \
3506         if (*endp) {                                                    \
3507                 fprintf(stderr, "error: bad %s: %s\n", msg, str);       \
3508                 return CMD_HELP;                                        \
3509         }                                                               \
3510 } while (0)
3511
3512 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
3513
3514 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
3515  * returns the value or ULONG_MAX on integer overflow or incorrect format
3516  * Notes:
3517  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
3518  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
3519  *        3. empty integer value is interpreted as 0
3520  */
3521 static unsigned long str2sec(const char* timestr)
3522 {
3523         const char spec[] = "smhdw";
3524         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
3525         unsigned long val = 0;
3526         char *tail;
3527
3528         if (strpbrk(timestr, spec) == NULL) {
3529                 /* no specifiers inside the time string,
3530                    should treat it as an integer value */
3531                 val = strtoul(timestr, &tail, 10);
3532                 return *tail ? ULONG_MAX : val;
3533         }
3534
3535         /* format string is XXwXXdXXhXXmXXs */
3536         while (*timestr) {
3537                 unsigned long v;
3538                 int ind;
3539                 char* ptr;
3540
3541                 v = strtoul(timestr, &tail, 10);
3542                 if (v == ULONG_MAX || *tail == '\0')
3543                         /* value too large (ULONG_MAX or more)
3544                            or missing specifier */
3545                         goto error;
3546
3547                 ptr = strchr(spec, *tail);
3548                 if (ptr == NULL)
3549                         /* unknown specifier */
3550                         goto error;
3551
3552                 ind = ptr - spec;
3553
3554                 /* check if product will overflow the type */
3555                 if (!(v < ULONG_MAX / mult[ind]))
3556                         goto error;
3557
3558                 ADD_OVERFLOW(val, mult[ind] * v);
3559                 if (val == ULONG_MAX)
3560                         goto error;
3561
3562                 timestr = tail + 1;
3563         }
3564
3565         return val;
3566
3567 error:
3568         return ULONG_MAX;
3569 }
3570
3571 #define ARG2ULL(nr, str, def_units)                                     \
3572 do {                                                                    \
3573         unsigned long long limit, units = def_units;                    \
3574         int rc;                                                         \
3575                                                                         \
3576         rc = llapi_parse_size(str, &limit, &units, 1);                  \
3577         if (rc < 0) {                                                   \
3578                 fprintf(stderr, "error: bad limit value %s\n", str);    \
3579                 return CMD_HELP;                                        \
3580         }                                                               \
3581         nr = limit;                                                     \
3582 } while (0)
3583
3584 static inline int has_times_option(int argc, char **argv)
3585 {
3586         int i;
3587
3588         for (i = 1; i < argc; i++)
3589                 if (!strcmp(argv[i], "-t"))
3590                         return 1;
3591
3592         return 0;
3593 }
3594
3595 int lfs_setquota_times(int argc, char **argv)
3596 {
3597         int c, rc;
3598         struct if_quotactl qctl;
3599         char *mnt, *obd_type = (char *)qctl.obd_type;
3600         struct obd_dqblk *dqb = &qctl.qc_dqblk;
3601         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
3602         struct option long_opts[] = {
3603         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
3604         { .val = 'g',   .name = "group",        .has_arg = no_argument },
3605         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
3606         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
3607         { .val = 't',   .name = "times",        .has_arg = no_argument },
3608         { .val = 'u',   .name = "user",         .has_arg = no_argument },
3609         { .name = NULL } };
3610         int qtype;
3611
3612         memset(&qctl, 0, sizeof(qctl));
3613         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
3614         qctl.qc_type = ALLQUOTA;
3615
3616         while ((c = getopt_long(argc, argv, "b:gi:ptu",
3617                                 long_opts, NULL)) != -1) {
3618                 switch (c) {
3619                 case 'u':
3620                         qtype = USRQUOTA;
3621                         goto quota_type;
3622                 case 'g':
3623                         qtype = GRPQUOTA;
3624                         goto quota_type;
3625                 case 'p':
3626                         qtype = PRJQUOTA;
3627 quota_type:
3628                         if (qctl.qc_type != ALLQUOTA) {
3629                                 fprintf(stderr, "error: -u/g/p can't be used "
3630                                                 "more than once\n");
3631                                 return CMD_HELP;
3632                         }
3633                         qctl.qc_type = qtype;
3634                         break;
3635                 case 'b':
3636                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
3637                                 fprintf(stderr, "error: bad block-grace: %s\n",
3638                                         optarg);
3639                                 return CMD_HELP;
3640                         }
3641                         dqb->dqb_valid |= QIF_BTIME;
3642                         break;
3643                 case 'i':
3644                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
3645                                 fprintf(stderr, "error: bad inode-grace: %s\n",
3646                                         optarg);
3647                                 return CMD_HELP;
3648                         }
3649                         dqb->dqb_valid |= QIF_ITIME;
3650                         break;
3651                 case 't': /* Yes, of course! */
3652                         break;
3653                 default: /* getopt prints error message for us when opterr != 0 */
3654                         return CMD_HELP;
3655                 }
3656         }
3657
3658         if (qctl.qc_type == ALLQUOTA) {
3659                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
3660                 return CMD_HELP;
3661         }
3662
3663         if (optind != argc - 1) {
3664                 fprintf(stderr, "error: unexpected parameters encountered\n");
3665                 return CMD_HELP;
3666         }
3667
3668         mnt = argv[optind];
3669         rc = llapi_quotactl(mnt, &qctl);
3670         if (rc) {
3671                 if (*obd_type)
3672                         fprintf(stderr, "%s %s ", obd_type,
3673                                 obd_uuid2str(&qctl.obd_uuid));
3674                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
3675                 return rc;
3676         }
3677
3678         return 0;
3679 }
3680
3681 #define BSLIMIT (1 << 0)
3682 #define BHLIMIT (1 << 1)
3683 #define ISLIMIT (1 << 2)
3684 #define IHLIMIT (1 << 3)
3685
3686 int lfs_setquota(int argc, char **argv)
3687 {
3688         int c, rc;
3689         struct if_quotactl qctl;
3690         char *mnt, *obd_type = (char *)qctl.obd_type;
3691         struct obd_dqblk *dqb = &qctl.qc_dqblk;
3692         struct option long_opts[] = {
3693         { .val = 'b',   .name = "block-softlimit",
3694                                                 .has_arg = required_argument },
3695         { .val = 'B',   .name = "block-hardlimit",
3696                                                 .has_arg = required_argument },
3697         { .val = 'g',   .name = "group",        .has_arg = required_argument },
3698         { .val = 'i',   .name = "inode-softlimit",
3699                                                 .has_arg = required_argument },
3700         { .val = 'I',   .name = "inode-hardlimit",
3701                                                 .has_arg = required_argument },
3702         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
3703         { .val = 'u',   .name = "user",         .has_arg = required_argument },
3704         { .name = NULL } };
3705         unsigned limit_mask = 0;
3706         char *endptr;
3707         int qtype;
3708
3709         if (has_times_option(argc, argv))
3710                 return lfs_setquota_times(argc, argv);
3711
3712         memset(&qctl, 0, sizeof(qctl));
3713         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
3714         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
3715                                   * so it can be used as a marker that qc_type
3716                                   * isn't reinitialized from command line */
3717
3718         while ((c = getopt_long(argc, argv, "b:B:g:i:I:p:u:",
3719                 long_opts, NULL)) != -1) {
3720                 switch (c) {
3721                 case 'u':
3722                         qtype = USRQUOTA;
3723                         rc = name2uid(&qctl.qc_id, optarg);
3724                         goto quota_type;
3725                 case 'g':
3726                         qtype = GRPQUOTA;
3727                         rc = name2gid(&qctl.qc_id, optarg);
3728                         goto quota_type;
3729                 case 'p':
3730                         qtype = PRJQUOTA;
3731                         rc = name2projid(&qctl.qc_id, optarg);
3732 quota_type:
3733                         if (qctl.qc_type != ALLQUOTA) {
3734                                 fprintf(stderr, "error: -u and -g can't be used"
3735                                                 " more than once\n");
3736                                 return CMD_HELP;
3737                         }
3738                         qctl.qc_type = qtype;
3739                         if (rc) {
3740                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
3741                                 if (*endptr != '\0') {
3742                                         fprintf(stderr, "error: can't find id "
3743                                                 "for name %s\n", optarg);
3744                                         return CMD_HELP;
3745                                 }
3746                         }
3747                         break;
3748                 case 'b':
3749                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
3750                         dqb->dqb_bsoftlimit >>= 10;
3751                         limit_mask |= BSLIMIT;
3752                         if (dqb->dqb_bsoftlimit &&
3753                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
3754                                 fprintf(stderr, "warning: block softlimit is "
3755                                         "smaller than the miminal qunit size, "
3756                                         "please see the help of setquota or "
3757                                         "Lustre manual for details.\n");
3758                         break;
3759                 case 'B':
3760                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
3761                         dqb->dqb_bhardlimit >>= 10;
3762                         limit_mask |= BHLIMIT;
3763                         if (dqb->dqb_bhardlimit &&
3764                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
3765                                 fprintf(stderr, "warning: block hardlimit is "
3766                                         "smaller than the miminal qunit size, "
3767                                         "please see the help of setquota or "
3768                                         "Lustre manual for details.\n");
3769                         break;
3770                 case 'i':
3771                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
3772                         limit_mask |= ISLIMIT;
3773                         if (dqb->dqb_isoftlimit &&
3774                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
3775                                 fprintf(stderr, "warning: inode softlimit is "
3776                                         "smaller than the miminal qunit size, "
3777                                         "please see the help of setquota or "
3778                                         "Lustre manual for details.\n");
3779                         break;
3780                 case 'I':
3781                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
3782                         limit_mask |= IHLIMIT;
3783                         if (dqb->dqb_ihardlimit &&
3784                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
3785                                 fprintf(stderr, "warning: inode hardlimit is "
3786                                         "smaller than the miminal qunit size, "
3787                                         "please see the help of setquota or "
3788                                         "Lustre manual for details.\n");
3789                         break;
3790                 default: /* getopt prints error message for us when opterr != 0 */
3791                         return CMD_HELP;
3792                 }
3793         }
3794
3795         if (qctl.qc_type == ALLQUOTA) {
3796                 fprintf(stderr, "error: neither -u, -g nor -p was specified\n");
3797                 return CMD_HELP;
3798         }
3799
3800         if (limit_mask == 0) {
3801                 fprintf(stderr, "error: at least one limit must be specified\n");
3802                 return CMD_HELP;
3803         }
3804
3805         if (optind != argc - 1) {
3806                 fprintf(stderr, "error: unexpected parameters encountered\n");
3807                 return CMD_HELP;
3808         }
3809
3810         mnt = argv[optind];
3811
3812         if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
3813             (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
3814                 /* sigh, we can't just set blimits/ilimits */
3815                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
3816                                                .qc_type = qctl.qc_type,
3817                                                .qc_id   = qctl.qc_id};
3818
3819                 rc = llapi_quotactl(mnt, &tmp_qctl);
3820                 if (rc < 0) {
3821                         fprintf(stderr, "error: setquota failed while retrieving"
3822                                         " current quota settings (%s)\n",
3823                                         strerror(-rc));
3824                         return rc;
3825                 }
3826
3827                 if (!(limit_mask & BHLIMIT))
3828                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
3829                 if (!(limit_mask & BSLIMIT))
3830                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
3831                 if (!(limit_mask & IHLIMIT))
3832                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
3833                 if (!(limit_mask & ISLIMIT))
3834                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
3835
3836                 /* Keep grace times if we have got no softlimit arguments */
3837                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
3838                         dqb->dqb_valid |= QIF_BTIME;
3839                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
3840                 }
3841
3842                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
3843                         dqb->dqb_valid |= QIF_ITIME;
3844                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
3845                 }
3846         }
3847
3848         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
3849         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
3850
3851         rc = llapi_quotactl(mnt, &qctl);
3852         if (rc) {
3853                 if (*obd_type)
3854                         fprintf(stderr, "%s %s ", obd_type,
3855                                 obd_uuid2str(&qctl.obd_uuid));
3856                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
3857                 return rc;
3858         }
3859
3860         return 0;
3861 }
3862
3863 /* Converts seconds value into format string
3864  * result is returned in buf
3865  * Notes:
3866  *        1. result is in descenting order: 1w2d3h4m5s
3867  *        2. zero fields are not filled (except for p. 3): 5d1s
3868  *        3. zero seconds value is presented as "0s"
3869  */
3870 static char * __sec2str(time_t seconds, char *buf)
3871 {
3872         const char spec[] = "smhdw";
3873         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
3874         unsigned long c;
3875         char *tail = buf;
3876         int i;
3877
3878         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
3879                 c = seconds / mult[i];
3880
3881                 if (c > 0 || (i == 0 && buf == tail))
3882                         tail += snprintf(tail, 40-(tail-buf), "%lu%c", c, spec[i]);
3883
3884                 seconds %= mult[i];
3885         }
3886
3887         return tail;
3888 }
3889
3890 static void sec2str(time_t seconds, char *buf, int rc)
3891 {
3892         char *tail = buf;
3893
3894         if (rc)
3895                 *tail++ = '[';
3896
3897         tail = __sec2str(seconds, tail);
3898
3899         if (rc && tail - buf < 39) {
3900                 *tail++ = ']';
3901                 *tail++ = 0;
3902         }
3903 }
3904
3905 static void diff2str(time_t seconds, char *buf, time_t now)
3906 {
3907
3908         buf[0] = 0;
3909         if (!seconds)
3910                 return;
3911         if (seconds <= now) {
3912                 strcpy(buf, "none");
3913                 return;
3914         }
3915         __sec2str(seconds - now, buf);
3916 }
3917
3918 static void print_quota_title(char *name, struct if_quotactl *qctl,
3919                               bool human_readable)
3920 {
3921         printf("Disk quotas for %s %s (%cid %u):\n",
3922                qtype_name(qctl->qc_type), name,
3923                *qtype_name(qctl->qc_type), qctl->qc_id);
3924         printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
3925                "Filesystem", human_readable ? "used" : "kbytes",
3926                "quota", "limit", "grace",
3927                "files", "quota", "limit", "grace");
3928 }
3929
3930 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
3931 {
3932         if (!h) {
3933                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
3934         } else {
3935                 if (num >> 40)
3936                         snprintf(buf, buflen, "%5.4gP",
3937                                  (double)num / ((__u64)1 << 40));
3938                 else if (num >> 30)
3939                         snprintf(buf, buflen, "%5.4gT",
3940                                  (double)num / (1 << 30));
3941                 else if (num >> 20)
3942                         snprintf(buf, buflen, "%5.4gG",
3943                                  (double)num / (1 << 20));
3944                 else if (num >> 10)
3945                         snprintf(buf, buflen, "%5.4gM",
3946                                  (double)num / (1 << 10));
3947                 else
3948                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
3949         }
3950 }
3951
3952 #define STRBUF_LEN      32
3953 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
3954                         int rc, bool h)
3955 {
3956         time_t now;
3957
3958         time(&now);
3959
3960         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA) {
3961                 int bover = 0, iover = 0;
3962                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
3963                 char numbuf[3][STRBUF_LEN];
3964                 char timebuf[40];
3965                 char strbuf[STRBUF_LEN];
3966
3967                 if (dqb->dqb_bhardlimit &&
3968                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
3969                         bover = 1;
3970                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
3971                         if (dqb->dqb_btime > now) {
3972                                 bover = 2;
3973                         } else {
3974                                 bover = 3;
3975                         }
3976                 }
3977
3978                 if (dqb->dqb_ihardlimit &&
3979                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
3980                         iover = 1;
3981                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
3982                         if (dqb->dqb_itime > now) {
3983                                 iover = 2;
3984                         } else {
3985                                 iover = 3;
3986                         }
3987                 }
3988
3989
3990                 if (strlen(mnt) > 15)
3991                         printf("%s\n%15s", mnt, "");
3992                 else
3993                         printf("%15s", mnt);
3994
3995                 if (bover)
3996                         diff2str(dqb->dqb_btime, timebuf, now);
3997
3998                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
3999                            strbuf, sizeof(strbuf), h);
4000                 if (rc == -EREMOTEIO)
4001                         sprintf(numbuf[0], "%s*", strbuf);
4002                 else
4003                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
4004                                 "%s" : "[%s]", strbuf);
4005
4006                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
4007                 if (type == QC_GENERAL)
4008                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
4009                                 "%s" : "[%s]", strbuf);
4010                 else
4011                         sprintf(numbuf[1], "%s", "-");
4012
4013                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
4014                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
4015                         "%s" : "[%s]", strbuf);
4016
4017                 printf(" %7s%c %6s %7s %7s",
4018                        numbuf[0], bover ? '*' : ' ', numbuf[1],
4019                        numbuf[2], bover > 1 ? timebuf : "-");
4020
4021                 if (iover)
4022                         diff2str(dqb->dqb_itime, timebuf, now);
4023
4024                 sprintf(numbuf[0], (dqb->dqb_valid & QIF_INODES) ?
4025                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_curinodes);
4026
4027                 if (type == QC_GENERAL)
4028                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
4029                                 "%ju" : "[%ju]",
4030                                 (uintmax_t)dqb->dqb_isoftlimit);
4031                 else
4032                         sprintf(numbuf[1], "%s", "-");
4033
4034                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
4035                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
4036
4037                 if (type != QC_OSTIDX)
4038                         printf(" %7s%c %6s %7s %7s",
4039                                numbuf[0], iover ? '*' : ' ', numbuf[1],
4040                                numbuf[2], iover > 1 ? timebuf : "-");
4041                 else
4042                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
4043                 printf("\n");
4044
4045         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
4046                    qctl->qc_cmd == Q_GETOINFO) {
4047                 char bgtimebuf[40];
4048                 char igtimebuf[40];
4049
4050                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
4051                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
4052                 printf("Block grace time: %s; Inode grace time: %s\n",
4053                        bgtimebuf, igtimebuf);
4054         }
4055 }
4056
4057 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
4058                            bool h, __u64 *total)
4059 {
4060         int rc = 0, rc1 = 0, count = 0;
4061         __u32 valid = qctl->qc_valid;
4062
4063         rc = llapi_get_obd_count(mnt, &count, is_mdt);
4064         if (rc) {
4065                 fprintf(stderr, "can not get %s count: %s\n",
4066                         is_mdt ? "mdt": "ost", strerror(-rc));
4067                 return rc;
4068         }
4069
4070         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
4071                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
4072                 rc = llapi_quotactl(mnt, qctl);
4073                 if (rc) {
4074                         /* It is remote client case. */
4075                         if (rc == -EOPNOTSUPP) {
4076                                 rc = 0;
4077                                 goto out;
4078                         }
4079
4080                         if (!rc1)
4081                                 rc1 = rc;
4082                         fprintf(stderr, "quotactl %s%d failed.\n",
4083                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
4084                         continue;
4085                 }
4086
4087                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
4088                             qctl->qc_valid, 0, h);
4089                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
4090                                    qctl->qc_dqblk.dqb_bhardlimit;
4091         }
4092 out:
4093         qctl->qc_valid = valid;
4094         return rc ? : rc1;
4095 }
4096
4097 static int lfs_quota(int argc, char **argv)
4098 {
4099         int c;
4100         char *mnt, *name = NULL;
4101         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
4102                                     .qc_type = ALLQUOTA };
4103         char *obd_type = (char *)qctl.obd_type;
4104         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
4105         int rc = 0, rc1 = 0, rc2 = 0, rc3 = 0,
4106             verbose = 0, pass = 0, quiet = 0, inacc;
4107         char *endptr;
4108         __u32 valid = QC_GENERAL, idx = 0;
4109         __u64 total_ialloc = 0, total_balloc = 0;
4110         bool human_readable = false;
4111         int qtype;
4112
4113         while ((c = getopt(argc, argv, "gi:I:o:pqtuvh")) != -1) {
4114                 switch (c) {
4115                 case 'u':
4116                         qtype = USRQUOTA;
4117                         goto quota_type;
4118                 case 'g':
4119                         qtype = GRPQUOTA;
4120                         goto quota_type;
4121                 case 'p':
4122                         qtype = PRJQUOTA;
4123 quota_type:
4124                         if (qctl.qc_type != ALLQUOTA) {
4125                                 fprintf(stderr, "error: use either -u or -g\n");
4126                                 return CMD_HELP;
4127                         }
4128                         qctl.qc_type = qtype;
4129                         break;
4130                 case 't':
4131                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
4132                         break;
4133                 case 'o':
4134                         valid = qctl.qc_valid = QC_UUID;
4135                         strlcpy(obd_uuid, optarg, sizeof(qctl.obd_uuid));
4136                         break;
4137                 case 'i':
4138                         valid = qctl.qc_valid = QC_MDTIDX;
4139                         idx = qctl.qc_idx = atoi(optarg);
4140                         break;
4141                 case 'I':
4142                         valid = qctl.qc_valid = QC_OSTIDX;
4143                         idx = qctl.qc_idx = atoi(optarg);
4144                         break;
4145                 case 'v':
4146                         verbose = 1;
4147                         break;
4148                 case 'q':
4149                         quiet = 1;
4150                         break;
4151                 case 'h':
4152                         human_readable = true;
4153                         break;
4154                 default:
4155                         fprintf(stderr, "error: %s: option '-%c' "
4156                                         "unrecognized\n", argv[0], c);
4157                         return CMD_HELP;
4158                 }
4159         }
4160
4161         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
4162         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
4163             optind == argc - 1) {
4164 all_output:
4165                 memset(&qctl, 0, sizeof(qctl)); /* spoiled by print_*_quota */
4166                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
4167                 qctl.qc_valid = valid;
4168                 qctl.qc_idx = idx;
4169                 qctl.qc_type = pass;
4170                 switch (qctl.qc_type) {
4171                 case USRQUOTA:
4172                         qctl.qc_id = geteuid();
4173                         rc = uid2name(&name, qctl.qc_id);
4174                         break;
4175                 case GRPQUOTA:
4176                         qctl.qc_id = getegid();
4177                         rc = gid2name(&name, qctl.qc_id);
4178                         break;
4179                 default:
4180                         rc = -ENOTSUP;
4181                         break;
4182                 }
4183                 if (rc)
4184                         name = "<unknown>";
4185                 pass++;
4186         /* lfs quota -u username /path/to/lustre/mount */
4187         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
4188                 /* options should be followed by u/g-name and mntpoint */
4189                 if (optind + 2 != argc || qctl.qc_type == ALLQUOTA) {
4190                         fprintf(stderr, "error: missing quota argument(s)\n");
4191                         return CMD_HELP;
4192                 }
4193
4194                 name = argv[optind++];
4195                 switch (qctl.qc_type) {
4196                 case USRQUOTA:
4197                         rc = name2uid(&qctl.qc_id, name);
4198                         break;
4199                 case GRPQUOTA:
4200                         rc = name2gid(&qctl.qc_id, name);
4201                         break;
4202                 case PRJQUOTA:
4203                         rc = name2projid(&qctl.qc_id, name);
4204                         break;
4205                 default:
4206                         rc = -ENOTSUP;
4207                         break;
4208                 }
4209                 if (rc) {
4210                         qctl.qc_id = strtoul(name, &endptr, 10);
4211                         if (*endptr != '\0') {
4212                                 fprintf(stderr, "error: can't find id for name: %s\n",
4213                                                 name);
4214                                 return CMD_HELP;
4215                         }
4216                 }
4217         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
4218                 fprintf(stderr, "error: missing quota info argument(s)\n");
4219                 return CMD_HELP;
4220         }
4221
4222         mnt = argv[optind];
4223         rc1 = llapi_quotactl(mnt, &qctl);
4224         if (rc1 < 0) {
4225                 switch (rc1) {
4226                 case -ESRCH:
4227                         fprintf(stderr, "%s quotas are not enabled.\n",
4228                                 qtype_name(qctl.qc_type));
4229                         goto out;
4230                 case -EPERM:
4231                         fprintf(stderr, "Permission denied.\n");
4232                 case -ENODEV:
4233                 case -ENOENT:
4234                         /* We already got error message. */
4235                         goto out;
4236                 default:
4237                         fprintf(stderr, "Unexpected quotactl error: %s\n",
4238                                 strerror(-rc1));
4239                 }
4240         }
4241
4242         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && !quiet)
4243                 print_quota_title(name, &qctl, human_readable);
4244
4245         if (rc1 && *obd_type)
4246                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
4247
4248         if (qctl.qc_valid != QC_GENERAL)
4249                 mnt = "";
4250
4251         inacc = (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) &&
4252                 ((qctl.qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
4253                  (QIF_LIMITS|QIF_USAGE));
4254
4255         print_quota(mnt, &qctl, QC_GENERAL, rc1, human_readable);
4256
4257         if (qctl.qc_valid == QC_GENERAL && qctl.qc_cmd != LUSTRE_Q_GETINFO &&
4258             verbose) {
4259                 char strbuf[STRBUF_LEN];
4260
4261                 rc2 = print_obd_quota(mnt, &qctl, 1, human_readable,
4262                                       &total_ialloc);
4263                 rc3 = print_obd_quota(mnt, &qctl, 0, human_readable,
4264                                       &total_balloc);
4265                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
4266                            human_readable);
4267                 printf("Total allocated inode limit: %ju, total "
4268                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
4269                        strbuf);
4270         }
4271
4272         if (rc1 || rc2 || rc3 || inacc)
4273                 printf("Some errors happened when getting quota info. "
4274                        "Some devices may be not working or deactivated. "
4275                        "The data in \"[]\" is inaccurate.\n");
4276
4277 out:
4278         if (pass > 0 && pass < LL_MAXQUOTAS)
4279                 goto all_output;
4280
4281         return rc1;
4282 }
4283 #endif /* HAVE_SYS_QUOTA_H! */
4284
4285 static int flushctx_ioctl(char *mp)
4286 {
4287         int fd, rc;
4288
4289         fd = open(mp, O_RDONLY);
4290         if (fd == -1) {
4291                 fprintf(stderr, "flushctx: error open %s: %s\n",
4292                         mp, strerror(errno));
4293                 return -1;
4294         }
4295
4296         rc = ioctl(fd, LL_IOC_FLUSHCTX);
4297         if (rc == -1)
4298                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
4299                         mp, strerror(errno));
4300
4301         close(fd);
4302         return rc;
4303 }
4304
4305 static int lfs_flushctx(int argc, char **argv)
4306 {
4307         int     kdestroy = 0, c;
4308         char    mntdir[PATH_MAX] = {'\0'};
4309         int     index = 0;
4310         int     rc = 0;
4311
4312         while ((c = getopt(argc, argv, "k")) != -1) {
4313                 switch (c) {
4314                 case 'k':
4315                         kdestroy = 1;
4316                         break;
4317                 default:
4318                         fprintf(stderr, "error: %s: option '-%c' "
4319                                         "unrecognized\n", argv[0], c);
4320                         return CMD_HELP;
4321                 }
4322         }
4323
4324         if (kdestroy) {
4325             if ((rc = system("kdestroy > /dev/null")) != 0) {
4326                 rc = WEXITSTATUS(rc);
4327                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
4328             }
4329         }
4330
4331         if (optind >= argc) {
4332                 /* flush for all mounted lustre fs. */
4333                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
4334                         /* Check if we have a mount point */
4335                         if (mntdir[0] == '\0')
4336                                 continue;
4337
4338                         if (flushctx_ioctl(mntdir))
4339                                 rc = -1;
4340
4341                         mntdir[0] = '\0'; /* avoid matching in next loop */
4342                 }
4343         } else {
4344                 /* flush fs as specified */
4345                 while (optind < argc) {
4346                         if (flushctx_ioctl(argv[optind++]))
4347                                 rc = -1;
4348                 }
4349         }
4350         return rc;
4351 }
4352
4353 static int lfs_cp(int argc, char **argv)
4354 {
4355         fprintf(stderr, "remote client copy file(s).\n"
4356                 "obsolete, does not support it anymore.\n");
4357         return 0;
4358 }
4359
4360 static int lfs_ls(int argc, char **argv)
4361 {
4362         fprintf(stderr, "remote client lists directory contents.\n"
4363                 "obsolete, does not support it anymore.\n");
4364         return 0;
4365 }
4366
4367 static int lfs_changelog(int argc, char **argv)
4368 {
4369         void *changelog_priv;
4370         struct changelog_rec *rec;
4371         long long startrec = 0, endrec = 0;
4372         char *mdd;
4373         struct option long_opts[] = {
4374                 { .val = 'f', .name = "follow", .has_arg = no_argument },
4375                 { .name = NULL } };
4376         char short_opts[] = "f";
4377         int rc, follow = 0;
4378
4379         while ((rc = getopt_long(argc, argv, short_opts,
4380                 long_opts, NULL)) != -1) {
4381                 switch (rc) {
4382                 case 'f':
4383                         follow++;
4384                         break;
4385                 case '?':
4386                         return CMD_HELP;
4387                 default:
4388                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
4389                                 argv[0], argv[optind - 1]);
4390                         return CMD_HELP;
4391                 }
4392         }
4393         if (optind >= argc)
4394                 return CMD_HELP;
4395
4396         mdd = argv[optind++];
4397         if (argc > optind)
4398                 startrec = strtoll(argv[optind++], NULL, 10);
4399         if (argc > optind)
4400                 endrec = strtoll(argv[optind++], NULL, 10);
4401
4402         rc = llapi_changelog_start(&changelog_priv,
4403                                    CHANGELOG_FLAG_BLOCK |
4404                                    CHANGELOG_FLAG_JOBID |
4405                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
4406                                    mdd, startrec);
4407         if (rc < 0) {
4408                 fprintf(stderr, "Can't start changelog: %s\n",
4409                         strerror(errno = -rc));
4410                 return rc;
4411         }
4412
4413         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
4414                 time_t secs;
4415                 struct tm ts;
4416
4417                 if (endrec && rec->cr_index > endrec) {
4418                         llapi_changelog_free(&rec);
4419                         break;
4420                 }
4421                 if (rec->cr_index < startrec) {
4422                         llapi_changelog_free(&rec);
4423                         continue;
4424                 }
4425
4426                 secs = rec->cr_time >> 30;
4427                 gmtime_r(&secs, &ts);
4428                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
4429                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
4430                        changelog_type2str(rec->cr_type),
4431                        ts.tm_hour, ts.tm_min, ts.tm_sec,
4432                        (int)(rec->cr_time & ((1 << 30) - 1)),
4433                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
4434                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
4435
4436                 if (rec->cr_flags & CLF_JOBID) {
4437                         struct changelog_ext_jobid *jid =
4438                                 changelog_rec_jobid(rec);
4439
4440                         if (jid->cr_jobid[0] != '\0')
4441                                 printf(" j=%s", jid->cr_jobid);
4442                 }
4443
4444                 if (rec->cr_namelen)
4445                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
4446                                rec->cr_namelen, changelog_rec_name(rec));
4447
4448                 if (rec->cr_flags & CLF_RENAME) {
4449                         struct changelog_ext_rename *rnm =
4450                                 changelog_rec_rename(rec);
4451
4452                         if (!fid_is_zero(&rnm->cr_sfid))
4453                                 printf(" s="DFID" sp="DFID" %.*s",
4454                                        PFID(&rnm->cr_sfid),
4455                                        PFID(&rnm->cr_spfid),
4456                                        (int)changelog_rec_snamelen(rec),
4457                                        changelog_rec_sname(rec));
4458                 }
4459                 printf("\n");
4460
4461                 llapi_changelog_free(&rec);
4462         }
4463
4464         llapi_changelog_fini(&changelog_priv);
4465
4466         if (rc < 0)
4467                 fprintf(stderr, "Changelog: %s\n", strerror(errno = -rc));
4468
4469         return (rc == 1 ? 0 : rc);
4470 }
4471
4472 static int lfs_changelog_clear(int argc, char **argv)
4473 {
4474         long long endrec;
4475         int rc;
4476
4477         if (argc != 4)
4478                 return CMD_HELP;
4479
4480         endrec = strtoll(argv[3], NULL, 10);
4481
4482         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
4483
4484         if (rc == -EINVAL)
4485                 fprintf(stderr, "%s: record out of range: %llu\n",
4486                         argv[0], endrec);
4487         else if (rc == -ENOENT)
4488                 fprintf(stderr, "%s: no changelog user: %s\n",
4489                         argv[0], argv[2]);
4490         else if (rc)
4491                 fprintf(stderr, "%s error: %s\n", argv[0],
4492                         strerror(-rc));
4493
4494         if (rc)
4495                 errno = -rc;
4496
4497         return rc;
4498 }
4499
4500 static int lfs_fid2path(int argc, char **argv)
4501 {
4502         struct option long_opts[] = {
4503                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
4504                 { .val = 'l',   .name = "link", .has_arg = required_argument },
4505                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
4506                 { .name = NULL } };
4507         char  short_opts[] = "cl:r:";
4508         char *device, *fid, *path;
4509         long long recno = -1;
4510         int linkno = -1;
4511         int lnktmp;
4512         int printcur = 0;
4513         int rc = 0;
4514
4515         while ((rc = getopt_long(argc, argv, short_opts,
4516                 long_opts, NULL)) != -1) {
4517                 switch (rc) {
4518                 case 'c':
4519                         printcur++;
4520                         break;
4521                 case 'l':
4522                         linkno = strtol(optarg, NULL, 10);
4523                         break;
4524                 case 'r':
4525                         recno = strtoll(optarg, NULL, 10);
4526                         break;
4527                 case '?':
4528                         return CMD_HELP;
4529                 default:
4530                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
4531                                 argv[0], argv[optind - 1]);
4532                         return CMD_HELP;
4533                 }
4534         }
4535
4536         if (argc < 3)
4537                 return CMD_HELP;
4538
4539         device = argv[optind++];
4540         path = calloc(1, PATH_MAX);
4541         if (path == NULL) {
4542                 fprintf(stderr, "error: Not enough memory\n");
4543                 return -errno;
4544         }
4545
4546         rc = 0;
4547         while (optind < argc) {
4548                 fid = argv[optind++];
4549
4550                 lnktmp = (linkno >= 0) ? linkno : 0;
4551                 while (1) {
4552                         int oldtmp = lnktmp;
4553                         long long rectmp = recno;
4554                         int rc2;
4555                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
4556                                              &rectmp, &lnktmp);
4557                         if (rc2 < 0) {
4558                                 fprintf(stderr, "%s: error on FID %s: %s\n",
4559                                         argv[0], fid, strerror(errno = -rc2));
4560                                 if (rc == 0)
4561                                         rc = rc2;
4562                                 break;
4563                         }
4564
4565                         if (printcur)
4566                                 fprintf(stdout, "%lld ", rectmp);
4567                         if (device[0] == '/') {
4568                                 fprintf(stdout, "%s", device);
4569                                 if (device[strlen(device) - 1] != '/')
4570                                         fprintf(stdout, "/");
4571                         } else if (path[0] == '\0') {
4572                                 fprintf(stdout, "/");
4573                         }
4574                         fprintf(stdout, "%s\n", path);
4575
4576                         if (linkno >= 0)
4577                                 /* specified linkno */
4578                                 break;
4579                         if (oldtmp == lnktmp)
4580                                 /* no more links */
4581                                 break;
4582                 }
4583         }
4584
4585         free(path);
4586         return rc;
4587 }
4588
4589 static int lfs_path2fid(int argc, char **argv)
4590 {
4591         struct option long_opts[] = {
4592                 { .val = 'p', .name = "parents", .has_arg = no_argument },
4593                 { .name = NULL } };
4594         char            **path;
4595         const char        short_opts[] = "p";
4596         const char       *sep = "";
4597         lustre_fid        fid;
4598         int               rc = 0;
4599         bool              show_parents = false;
4600
4601         while ((rc = getopt_long(argc, argv, short_opts,
4602                                  long_opts, NULL)) != -1) {
4603                 switch (rc) {
4604                 case 'p':
4605                         show_parents = true;
4606                         break;
4607                 default:
4608                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
4609                                 argv[0], argv[optind - 1]);
4610                         return CMD_HELP;
4611                 }
4612         }
4613
4614         if (optind > argc - 1)
4615                 return CMD_HELP;
4616         else if (optind < argc - 1)
4617                 sep = ": ";
4618
4619         rc = 0;
4620         for (path = argv + optind; *path != NULL; path++) {
4621                 int err = 0;
4622                 if (!show_parents) {
4623                         err = llapi_path2fid(*path, &fid);
4624                         if (!err)
4625                                 printf("%s%s"DFID"\n",
4626                                        *sep != '\0' ? *path : "", sep,
4627                                        PFID(&fid));
4628                 } else {
4629                         char            name[NAME_MAX + 1];
4630                         unsigned int    linkno = 0;
4631
4632                         while ((err = llapi_path2parent(*path, linkno, &fid,
4633                                                 name, sizeof(name))) == 0) {
4634                                 if (*sep != '\0' && linkno == 0)
4635                                         printf("%s%s", *path, sep);
4636
4637                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
4638                                        PFID(&fid), name);
4639                                 linkno++;
4640                         }
4641
4642                         /* err == -ENODATA is end-of-loop */
4643                         if (linkno > 0 && err == -ENODATA) {
4644                                 printf("\n");
4645                                 err = 0;
4646                         }
4647                 }
4648
4649                 if (err) {
4650                         fprintf(stderr, "%s: can't get %sfid for %s: %s\n",
4651                                 argv[0], show_parents ? "parent " : "", *path,
4652                                 strerror(-err));
4653                         if (rc == 0) {
4654                                 rc = err;
4655                                 errno = -err;
4656                         }
4657                 }
4658         }
4659
4660         return rc;
4661 }
4662
4663 static int lfs_data_version(int argc, char **argv)
4664 {
4665         char *path;
4666         __u64 data_version;
4667         int fd;
4668         int rc;
4669         int c;
4670         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
4671
4672         if (argc < 2)
4673                 return CMD_HELP;
4674
4675         while ((c = getopt(argc, argv, "nrw")) != -1) {
4676                 switch (c) {
4677                 case 'n':
4678                         data_version_flags = 0;
4679                         break;
4680                 case 'r':
4681                         data_version_flags |= LL_DV_RD_FLUSH;
4682                         break;
4683                 case 'w':
4684                         data_version_flags |= LL_DV_WR_FLUSH;
4685                         break;
4686                 default:
4687                         return CMD_HELP;
4688                 }
4689         }
4690         if (optind == argc)
4691                 return CMD_HELP;
4692
4693         path = argv[optind];
4694         fd = open(path, O_RDONLY);
4695         if (fd < 0)
4696                 err(errno, "cannot open file %s", path);
4697
4698         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
4699         if (rc < 0)
4700                 err(errno, "cannot get version for %s", path);
4701         else
4702                 printf("%ju" "\n", (uintmax_t)data_version);
4703
4704         close(fd);
4705         return rc;
4706 }
4707
4708 static int lfs_hsm_state(int argc, char **argv)
4709 {
4710         int rc;
4711         int i = 1;
4712         char *path;
4713         struct hsm_user_state hus;
4714
4715         if (argc < 2)
4716                 return CMD_HELP;
4717
4718         do {
4719                 path = argv[i];
4720
4721                 rc = llapi_hsm_state_get(path, &hus);
4722                 if (rc) {
4723                         fprintf(stderr, "can't get hsm state for %s: %s\n",
4724                                 path, strerror(errno = -rc));
4725                         return rc;
4726                 }
4727
4728                 /* Display path name and status flags */
4729                 printf("%s: (0x%08x)", path, hus.hus_states);
4730
4731                 if (hus.hus_states & HS_RELEASED)
4732                         printf(" released");
4733                 if (hus.hus_states & HS_EXISTS)
4734                         printf(" exists");
4735                 if (hus.hus_states & HS_DIRTY)
4736                         printf(" dirty");
4737                 if (hus.hus_states & HS_ARCHIVED)
4738                         printf(" archived");
4739                 /* Display user-settable flags */
4740                 if (hus.hus_states & HS_NORELEASE)
4741                         printf(" never_release");
4742                 if (hus.hus_states & HS_NOARCHIVE)
4743                         printf(" never_archive");
4744                 if (hus.hus_states & HS_LOST)
4745                         printf(" lost_from_hsm");
4746
4747                 if (hus.hus_archive_id != 0)
4748                         printf(", archive_id:%d", hus.hus_archive_id);
4749                 printf("\n");
4750
4751         } while (++i < argc);
4752
4753         return 0;
4754 }
4755
4756 #define LFS_HSM_SET   0
4757 #define LFS_HSM_CLEAR 1
4758
4759 /**
4760  * Generic function to set or clear HSM flags.
4761  * Used by hsm_set and hsm_clear.
4762  *
4763  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
4764  */
4765 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
4766 {
4767         struct option long_opts[] = {
4768         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
4769         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
4770         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
4771         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
4772         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
4773         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
4774         { .name = NULL } };
4775         char short_opts[] = "lraAde";
4776         __u64 mask = 0;
4777         int c, rc;
4778         char *path;
4779
4780         if (argc < 3)
4781                 return CMD_HELP;
4782
4783         while ((c = getopt_long(argc, argv, short_opts,
4784                                 long_opts, NULL)) != -1) {
4785                 switch (c) {
4786                 case 'l':
4787                         mask |= HS_LOST;
4788                         break;
4789                 case 'a':
4790                         mask |= HS_NOARCHIVE;
4791                         break;
4792                 case 'A':
4793                         mask |= HS_ARCHIVED;
4794                         break;
4795                 case 'r':
4796                         mask |= HS_NORELEASE;
4797                         break;
4798                 case 'd':
4799                         mask |= HS_DIRTY;
4800                         break;
4801                 case 'e':
4802                         mask |= HS_EXISTS;
4803                         break;
4804                 case '?':
4805                         return CMD_HELP;
4806                 default:
4807                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
4808                                 argv[0], argv[optind - 1]);
4809                         return CMD_HELP;
4810                 }
4811         }
4812
4813         /* User should have specified a flag */
4814         if (mask == 0)
4815                 return CMD_HELP;
4816
4817         while (optind < argc) {
4818
4819                 path = argv[optind];
4820
4821                 /* If mode == 0, this means we apply the mask. */
4822                 if (mode == LFS_HSM_SET)
4823                         rc = llapi_hsm_state_set(path, mask, 0, 0);
4824                 else
4825                         rc = llapi_hsm_state_set(path, 0, mask, 0);
4826
4827                 if (rc != 0) {
4828                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
4829                                 path, strerror(errno = -rc));
4830                         return rc;
4831                 }
4832                 optind++;
4833         }
4834
4835         return 0;
4836 }
4837
4838 static int lfs_hsm_action(int argc, char **argv)
4839 {
4840         int                              rc;
4841         int                              i = 1;
4842         char                            *path;
4843         struct hsm_current_action        hca;
4844         struct hsm_extent                he;
4845         enum hsm_user_action             hua;
4846         enum hsm_progress_states         hps;
4847
4848         if (argc < 2)
4849                 return CMD_HELP;
4850
4851         do {
4852                 path = argv[i];
4853
4854                 rc = llapi_hsm_current_action(path, &hca);
4855                 if (rc) {
4856                         fprintf(stderr, "can't get hsm action for %s: %s\n",
4857                                 path, strerror(errno = -rc));
4858                         return rc;
4859                 }
4860                 he = hca.hca_location;
4861                 hua = hca.hca_action;
4862                 hps = hca.hca_state;
4863
4864                 printf("%s: %s", path, hsm_user_action2name(hua));
4865
4866                 /* Skip file without action */
4867                 if (hca.hca_action == HUA_NONE) {
4868                         printf("\n");
4869                         continue;
4870                 }
4871
4872                 printf(" %s ", hsm_progress_state2name(hps));
4873
4874                 if ((hps == HPS_RUNNING) &&
4875                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
4876                         printf("(%llu bytes moved)\n",
4877                                (unsigned long long)he.length);
4878                 else if ((he.offset + he.length) == LUSTRE_EOF)
4879                         printf("(from %llu to EOF)\n",
4880                                (unsigned long long)he.offset);
4881                 else
4882                         printf("(from %llu to %llu)\n",
4883                                (unsigned long long)he.offset,
4884                                (unsigned long long)(he.offset + he.length));
4885
4886         } while (++i < argc);
4887
4888         return 0;
4889 }
4890
4891 static int lfs_hsm_set(int argc, char **argv)
4892 {
4893         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
4894 }
4895
4896 static int lfs_hsm_clear(int argc, char **argv)
4897 {
4898         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
4899 }
4900
4901 /**
4902  * Check file state and return its fid, to be used by lfs_hsm_request().
4903  *
4904  * \param[in]     file      Path to file to check
4905  * \param[in,out] fid       Pointer to allocated lu_fid struct.
4906  * \param[in,out] last_dev  Pointer to last device id used.
4907  *
4908  * \return 0 on success.
4909  */
4910 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
4911                                 dev_t *last_dev)
4912 {
4913         struct stat     st;
4914         int             rc;
4915
4916         rc = lstat(file, &st);
4917         if (rc) {
4918                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
4919                 return -errno;
4920         }
4921         /* Checking for regular file as archiving as posix copytool
4922          * rejects archiving files other than regular files
4923          */
4924         if (!S_ISREG(st.st_mode)) {
4925                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
4926                 return CMD_HELP;
4927         }
4928         /* A request should be ... */
4929         if (*last_dev != st.st_dev && *last_dev != 0) {
4930                 fprintf(stderr, "All files should be "
4931                         "on the same filesystem: %s\n", file);
4932                 return -EINVAL;
4933         }
4934         *last_dev = st.st_dev;
4935
4936         rc = llapi_path2fid(file, fid);
4937         if (rc) {
4938                 fprintf(stderr, "Cannot read FID of %s: %s\n",
4939                         file, strerror(-rc));
4940                 return rc;
4941         }
4942         return 0;
4943 }
4944
4945 /* Fill an HSM HUR item with a given file name.
4946  *
4947  * If mntpath is set, then the filename is actually a FID, and no
4948  * lookup on the filesystem will be performed.
4949  *
4950  * \param[in]  hur         the user request to fill
4951  * \param[in]  idx         index of the item inside the HUR to fill
4952  * \param[in]  mntpath     mountpoint of Lustre
4953  * \param[in]  fname       filename (if mtnpath is NULL)
4954  *                         or FID (if mntpath is set)
4955  * \param[in]  last_dev    pointer to last device id used
4956  *
4957  * \retval 0 on success
4958  * \retval CMD_HELP or a negative errno on error
4959  */
4960 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
4961                          const char *mntpath, const char *fname,
4962                          dev_t *last_dev)
4963 {
4964         struct hsm_user_item *hui = &hur->hur_user_item[idx];
4965         int rc;
4966
4967         hui->hui_extent.length = -1;
4968
4969         if (mntpath != NULL) {
4970                 if (*fname == '[')
4971                         fname++;
4972                 rc = sscanf(fname, SFID, RFID(&hui->hui_fid));
4973                 if (rc == 3) {
4974                         rc = 0;
4975                 } else {
4976                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
4977                                 fname);
4978                         rc = -EINVAL;
4979                 }
4980         } else {
4981                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
4982         }
4983
4984         if (rc == 0)
4985                 hur->hur_request.hr_itemcount++;
4986
4987         return rc;
4988 }
4989
4990 static int lfs_hsm_request(int argc, char **argv, int action)
4991 {
4992         struct option long_opts[] = {
4993         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
4994         { .val = 'D',   .name = "data",         .has_arg = required_argument },
4995         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
4996         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
4997         { .name = NULL } };
4998         dev_t                    last_dev = 0;
4999         char                     short_opts[] = "l:D:a:m:";
5000         struct hsm_user_request *hur, *oldhur;
5001         int                      c, i;
5002         size_t                   len;
5003         int                      nbfile;
5004         char                    *line = NULL;
5005         char                    *filelist = NULL;
5006         char                     fullpath[PATH_MAX];
5007         char                    *opaque = NULL;
5008         int                      opaque_len = 0;
5009         int                      archive_id = 0;
5010         FILE                    *fp;
5011         int                      nbfile_alloc = 0;
5012         char                    *some_file = NULL;
5013         char                    *mntpath = NULL;
5014         int                      rc;
5015
5016         if (argc < 2)
5017                 return CMD_HELP;
5018
5019         while ((c = getopt_long(argc, argv, short_opts,
5020                                 long_opts, NULL)) != -1) {
5021                 switch (c) {
5022                 case 'l':
5023                         filelist = optarg;
5024                         break;
5025                 case 'D':
5026                         opaque = optarg;
5027                         break;
5028                 case 'a':
5029                         if (action != HUA_ARCHIVE &&
5030                             action != HUA_REMOVE) {
5031                                 fprintf(stderr,
5032                                         "error: -a is supported only "
5033                                         "when archiving or removing\n");
5034                                 return CMD_HELP;
5035                         }
5036                         archive_id = atoi(optarg);
5037                         break;
5038                 case 'm':
5039                         if (some_file == NULL) {
5040                                 mntpath = optarg;
5041                                 some_file = strdup(optarg);
5042                         }
5043                         break;
5044                 case '?':
5045                         return CMD_HELP;
5046                 default:
5047                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
5048                                 argv[0], argv[optind - 1]);
5049                         return CMD_HELP;
5050                 }
5051         }
5052
5053         /* All remaining args are files, so we have at least nbfile */
5054         nbfile = argc - optind;
5055
5056         if ((nbfile == 0) && (filelist == NULL))
5057                 return CMD_HELP;
5058
5059         if (opaque != NULL)
5060                 opaque_len = strlen(opaque);
5061
5062         /* Alloc the request structure with enough place to store all files
5063          * from command line. */
5064         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
5065         if (hur == NULL) {
5066                 fprintf(stderr, "Cannot create the request: %s\n",
5067                         strerror(errno));
5068                 return errno;
5069         }
5070         nbfile_alloc = nbfile;
5071
5072         hur->hur_request.hr_action = action;
5073         hur->hur_request.hr_archive_id = archive_id;
5074         hur->hur_request.hr_flags = 0;
5075
5076         /* All remaining args are files, add them */
5077         if (nbfile != 0 && some_file == NULL)
5078                 some_file = strdup(argv[optind]);
5079
5080         for (i = 0; i < nbfile; i++) {
5081                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
5082                                    &last_dev);
5083                 if (rc)
5084                         goto out_free;
5085         }
5086
5087         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
5088
5089         /* If a filelist was specified, read the filelist from it. */
5090         if (filelist != NULL) {
5091                 fp = fopen(filelist, "r");
5092                 if (fp == NULL) {
5093                         fprintf(stderr, "Cannot read the file list %s: %s\n",
5094                                 filelist, strerror(errno));
5095                         rc = -errno;
5096                         goto out_free;
5097                 }
5098
5099                 while ((rc = getline(&line, &len, fp)) != -1) {
5100                         /* If allocated buffer was too small, get something
5101                          * larger */
5102                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
5103                                 ssize_t size;
5104
5105                                 nbfile_alloc = nbfile_alloc * 2 + 1;
5106                                 oldhur = hur;
5107                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
5108                                                                    opaque_len);
5109                                 if (hur == NULL) {
5110                                         fprintf(stderr, "hsm: cannot allocate "
5111                                                 "the request: %s\n",
5112                                                 strerror(errno));
5113                                         hur = oldhur;
5114                                         rc = -errno;
5115                                         fclose(fp);
5116                                         goto out_free;
5117                                 }
5118                                 size = hur_len(oldhur);
5119                                 if (size < 0) {
5120                                         fprintf(stderr, "hsm: cannot allocate "
5121                                                 "%u files + %u bytes data\n",
5122                                             oldhur->hur_request.hr_itemcount,
5123                                             oldhur->hur_request.hr_data_len);
5124                                         free(hur);
5125                                         hur = oldhur;
5126                                         rc = -E2BIG;
5127                                         fclose(fp);
5128                                         goto out_free;
5129                                 }
5130                                 memcpy(hur, oldhur, size);
5131                                 free(oldhur);
5132                         }
5133
5134                         /* Chop CR */
5135                         if (line[strlen(line) - 1] == '\n')
5136                                 line[strlen(line) - 1] = '\0';
5137
5138                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
5139                                            mntpath, line, &last_dev);
5140                         if (rc) {
5141                                 fclose(fp);
5142                                 goto out_free;
5143                         }
5144
5145                         if (some_file == NULL) {
5146                                 some_file = line;
5147                                 line = NULL;
5148                         }
5149                 }
5150
5151                 rc = fclose(fp);
5152                 free(line);
5153         }
5154
5155         /* If a --data was used, add it to the request */
5156         hur->hur_request.hr_data_len = opaque_len;
5157         if (opaque != NULL)
5158                 memcpy(hur_data(hur), opaque, opaque_len);
5159
5160         /* Send the HSM request */
5161         if (realpath(some_file, fullpath) == NULL) {
5162                 fprintf(stderr, "Could not find path '%s': %s\n",
5163                         some_file, strerror(errno));
5164         }
5165         rc = llapi_hsm_request(fullpath, hur);
5166         if (rc) {
5167                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
5168                         some_file, strerror(-rc));
5169                 goto out_free;
5170         }
5171
5172 out_free:
5173         free(some_file);
5174         free(hur);
5175         return rc;
5176 }
5177
5178 static int lfs_hsm_archive(int argc, char **argv)
5179 {
5180         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
5181 }
5182
5183 static int lfs_hsm_restore(int argc, char **argv)
5184 {
5185         return lfs_hsm_request(argc, argv, HUA_RESTORE);
5186 }
5187
5188 static int lfs_hsm_release(int argc, char **argv)
5189 {
5190         return lfs_hsm_request(argc, argv, HUA_RELEASE);
5191 }
5192
5193 static int lfs_hsm_remove(int argc, char **argv)
5194 {
5195         return lfs_hsm_request(argc, argv, HUA_REMOVE);
5196 }
5197
5198 static int lfs_hsm_cancel(int argc, char **argv)
5199 {
5200         return lfs_hsm_request(argc, argv, HUA_CANCEL);
5201 }
5202
5203 static int lfs_swap_layouts(int argc, char **argv)
5204 {
5205         if (argc != 3)
5206                 return CMD_HELP;
5207
5208         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
5209                                   SWAP_LAYOUTS_KEEP_MTIME |
5210                                   SWAP_LAYOUTS_KEEP_ATIME);
5211 }
5212
5213 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
5214
5215 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
5216 {
5217         enum lu_ladvise_type advice;
5218
5219         for (advice = 0;
5220              advice < ARRAY_SIZE(ladvise_names); advice++) {
5221                 if (ladvise_names[advice] == NULL)
5222                         continue;
5223                 if (strcmp(string, ladvise_names[advice]) == 0)
5224                         return advice;
5225         }
5226
5227         return LU_LADVISE_INVALID;
5228 }
5229
5230 static int lfs_ladvise(int argc, char **argv)
5231 {
5232         struct option long_opts[] = {
5233         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
5234         { .val = 'b',   .name = "background",   .has_arg = no_argument },
5235         { .val = 'e',   .name = "end",          .has_arg = required_argument },
5236         { .val = 'l',   .name = "length",       .has_arg = required_argument },
5237         { .val = 's',   .name = "start",        .has_arg = required_argument },
5238         { .name = NULL } };
5239         char                     short_opts[] = "a:be:l:s:";
5240         int                      c;
5241         int                      rc = 0;
5242         const char              *path;
5243         int                      fd;
5244         struct llapi_lu_ladvise  advice;
5245         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
5246         unsigned long long       start = 0;
5247         unsigned long long       end = LUSTRE_EOF;
5248         unsigned long long       length = 0;
5249         unsigned long long       size_units;
5250         unsigned long long       flags = 0;
5251
5252         optind = 0;
5253         while ((c = getopt_long(argc, argv, short_opts,
5254                                 long_opts, NULL)) != -1) {
5255                 switch (c) {
5256                 case 'a':
5257                         advice_type = lfs_get_ladvice(optarg);
5258                         if (advice_type == LU_LADVISE_INVALID) {
5259                                 fprintf(stderr, "%s: invalid advice type "
5260                                         "'%s'\n", argv[0], optarg);
5261                                 fprintf(stderr, "Valid types:");
5262
5263                                 for (advice_type = 0;
5264                                      advice_type < ARRAY_SIZE(ladvise_names);
5265                                      advice_type++) {
5266                                         if (ladvise_names[advice_type] == NULL)
5267                                                 continue;
5268                                         fprintf(stderr, " %s",
5269                                                 ladvise_names[advice_type]);
5270                                 }
5271                                 fprintf(stderr, "\n");
5272
5273                                 return CMD_HELP;
5274                         }
5275                         break;
5276                 case 'b':
5277                         flags |= LF_ASYNC;
5278                         break;
5279                 case 'e':
5280                         size_units = 1;
5281                         rc = llapi_parse_size(optarg, &end,
5282                                               &size_units, 0);
5283                         if (rc) {
5284                                 fprintf(stderr, "%s: bad end offset '%s'\n",
5285                                         argv[0], optarg);
5286                                 return CMD_HELP;
5287                         }
5288                         break;
5289                 case 's':
5290                         size_units = 1;
5291                         rc = llapi_parse_size(optarg, &start,
5292                                               &size_units, 0);
5293                         if (rc) {
5294                                 fprintf(stderr, "%s: bad start offset "
5295                                         "'%s'\n", argv[0], optarg);
5296                                 return CMD_HELP;
5297                         }
5298                         break;
5299                 case 'l':
5300                         size_units = 1;
5301                         rc = llapi_parse_size(optarg, &length,
5302                                               &size_units, 0);
5303                         if (rc) {
5304                                 fprintf(stderr, "%s: bad length '%s'\n",
5305                                         argv[0], optarg);
5306                                 return CMD_HELP;
5307                         }
5308                         break;
5309                 case '?':
5310                         return CMD_HELP;
5311                 default:
5312                         fprintf(stderr, "%s: option '%s' unrecognized\n",
5313                                 argv[0], argv[optind - 1]);
5314                         return CMD_HELP;
5315                 }
5316         }
5317
5318         if (advice_type == LU_LADVISE_INVALID) {
5319                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
5320                 fprintf(stderr, "Valid types:");
5321                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
5322                      advice_type++) {
5323                         if (ladvise_names[advice_type] == NULL)
5324                                 continue;
5325                         fprintf(stderr, " %s", ladvise_names[advice_type]);
5326                 }
5327                 fprintf(stderr, "\n");
5328                 return CMD_HELP;
5329         }
5330
5331         if (argc <= optind) {
5332                 fprintf(stderr, "%s: please give one or more file names\n",
5333                         argv[0]);
5334                 return CMD_HELP;
5335         }
5336
5337         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
5338                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
5339                         argv[0]);
5340                 return CMD_HELP;
5341         }
5342
5343         if (end == LUSTRE_EOF && length != 0)
5344                 end = start + length;
5345
5346         if (end <= start) {
5347                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
5348                         argv[0], start, end);
5349                 return CMD_HELP;
5350         }
5351
5352         while (optind < argc) {
5353                 int rc2;
5354
5355                 path = argv[optind++];
5356
5357                 fd = open(path, O_RDONLY);
5358                 if (fd < 0) {
5359                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
5360                                 argv[0], path, strerror(errno));
5361                         rc2 = -errno;
5362                         goto next;
5363                 }
5364
5365                 advice.lla_start = start;
5366                 advice.lla_end = end;
5367                 advice.lla_advice = advice_type;
5368                 advice.lla_value1 = 0;
5369                 advice.lla_value2 = 0;
5370                 advice.lla_value3 = 0;
5371                 advice.lla_value4 = 0;
5372                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
5373                 close(fd);
5374                 if (rc2 < 0) {
5375                         fprintf(stderr, "%s: cannot give advice '%s' to file "
5376                                 "'%s': %s\n", argv[0],
5377                                 ladvise_names[advice_type],
5378                                 path, strerror(errno));
5379                 }
5380 next:
5381                 if (rc == 0 && rc2 < 0)
5382                         rc = rc2;
5383         }
5384         return rc;
5385 }
5386
5387 static int lfs_list_commands(int argc, char **argv)
5388 {
5389         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
5390
5391         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
5392
5393         return 0;
5394 }
5395
5396 int main(int argc, char **argv)
5397 {
5398         int rc;
5399
5400         /* Ensure that liblustreapi constructor has run */
5401         if (!llapi_liblustreapi_initialized())
5402                 fprintf(stderr, "liblustreapi was not properly initialized\n");
5403
5404         setlinebuf(stdout);
5405
5406         Parser_init("lfs > ", cmdlist);
5407
5408         progname = argv[0]; /* Used in error messages */
5409         if (argc > 1) {
5410                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
5411         } else {
5412                 rc = Parser_commands();
5413         }
5414
5415         return rc < 0 ? -rc : rc;
5416 }
5417
5418 #ifdef _LUSTRE_IDL_H_
5419 /* Everything we need here should be included by lustreapi.h. */
5420 # error "lfs should not depend on lustre_idl.h"
5421 #endif /* _LUSTRE_IDL_H_ */