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 <inttypes.h>
  47 #include <getopt.h>
  48 #include <string.h>
  49 #include <mntent.h>
  50 #include <unistd.h>
  51 #include <errno.h>
  52 #include <err.h>
  53 #include <pwd.h>
  54 #include <grp.h>
  55 #include <sys/ioctl.h>
  56 #include <sys/quota.h>
  57 #include <sys/time.h>
  58 #include <sys/types.h>
  59 #include <sys/stat.h>
  60 #include <fcntl.h>
  61 #include <dirent.h>
  62 #include <time.h>
  63 #include <ctype.h>
  64 #include "lfs_project.h"
  65
  66 #include <libcfs/util/string.h>
  67 #include <libcfs/util/ioctl.h>
  68 #include <libcfs/util/parser.h>
  69 #include <lustre/lustreapi.h>
  70 #include <linux/lustre/lustre_ver.h>
  71 #include <linux/lustre/lustre_param.h>
  72
  73 #ifndef ARRAY_SIZE
  74 # define ARRAY_SIZE(a) ((sizeof(a)) / (sizeof((a)[0])))
  75 #endif /* !ARRAY_SIZE */
  76
  77 /* all functions */
  78 static int lfs_find(int argc, char **argv);
  79 static int lfs_getstripe(int argc, char **argv);
  80 static int lfs_getdirstripe(int argc, char **argv);
  81 static int lfs_setdirstripe(int argc, char **argv);
  82 static int lfs_rmentry(int argc, char **argv);
  83 static int lfs_osts(int argc, char **argv);
  84 static int lfs_mdts(int argc, char **argv);
  85 static int lfs_df(int argc, char **argv);
  86 static int lfs_getname(int argc, char **argv);
  87 static int lfs_check(int argc, char **argv);
  88 #ifdef HAVE_SYS_QUOTA_H
  89 static int lfs_setquota(int argc, char **argv);
  90 static int lfs_quota(int argc, char **argv);
  91 static int lfs_project(int argc, char **argv);
  92 #endif
  93 static int lfs_flushctx(int argc, char **argv);
  94 static int lfs_cp(int argc, char **argv);
  95 static int lfs_ls(int argc, char **argv);
  96 static int lfs_poollist(int argc, char **argv);
  97 static int lfs_changelog(int argc, char **argv);
  98 static int lfs_changelog_clear(int argc, char **argv);
  99 static int lfs_fid2path(int argc, char **argv);
 100 static int lfs_path2fid(int argc, char **argv);
 101 static int lfs_data_version(int argc, char **argv);
 102 static int lfs_hsm_state(int argc, char **argv);
 103 static int lfs_hsm_set(int argc, char **argv);
 104 static int lfs_hsm_clear(int argc, char **argv);
 105 static int lfs_hsm_action(int argc, char **argv);
 106 static int lfs_hsm_archive(int argc, char **argv);
 107 static int lfs_hsm_restore(int argc, char **argv);
 108 static int lfs_hsm_release(int argc, char **argv);
 109 static int lfs_hsm_remove(int argc, char **argv);
 110 static int lfs_hsm_cancel(int argc, char **argv);
 111 static int lfs_swap_layouts(int argc, char **argv);
 112 static int lfs_mv(int argc, char **argv);
 113 static int lfs_ladvise(int argc, char **argv);
 114 static int lfs_mirror(int argc, char **argv);
 115 static int lfs_mirror_list_commands(int argc, char **argv);
 116 static int lfs_list_commands(int argc, char **argv);
 117 static inline int lfs_mirror_resync(int argc, char **argv);
 118
 119 enum setstripe_origin {
 120         SO_SETSTRIPE,
 121         SO_MIGRATE,
 122         SO_MIRROR_CREATE,
 123         SO_MIRROR_EXTEND
 124 };
 125 static int lfs_setstripe0(int argc, char **argv, enum setstripe_origin opc);
 126
 127 static inline int lfs_setstripe(int argc, char **argv)
 128 {
 129         return lfs_setstripe0(argc, argv, SO_SETSTRIPE);
 130 }
 131 static inline int lfs_setstripe_migrate(int argc, char **argv)
 132 {
 133         return lfs_setstripe0(argc, argv, SO_MIGRATE);
 134 }
 135 static inline int lfs_mirror_create(int argc, char **argv)
 136 {
 137         return lfs_setstripe0(argc, argv, SO_MIRROR_CREATE);
 138 }
 139 static inline int lfs_mirror_extend(int argc, char **argv)
 140 {
 141         return lfs_setstripe0(argc, argv, SO_MIRROR_EXTEND);
 142 }
 143
 144 /* Setstripe and migrate share mostly the same parameters */
 145 #define SSM_CMD_COMMON(cmd) \
 146         "usage: "cmd" [--component-end|-E <comp_end>]\n"                \
 147         "                 [--stripe-count|-c <stripe_count>]\n"         \
 148         "                 [--stripe-index|-i <start_ost_idx>]\n"        \
 149         "                 [--stripe-size|-S <stripe_size>]\n"           \
 150         "                 [--layout|-L <pattern>]\n"            \
 151         "                 [--pool|-p <pool_name>]\n"                    \
 152         "                 [--ost|-o <ost_indices>]\n"
 153
 154 #define SSM_HELP_COMMON \
 155         "\tstripe_count: Number of OSTs to stripe over (0=fs default, -1 all)\n" \
 156         "\tstart_ost_idx: OST index of first stripe (-1=default round robin)\n"\
 157         "\tstripe_size:  Number of bytes on each OST (0=fs default)\n" \
 158         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 159         "\t              respectively)\n"                               \
 160         "\tpool_name:    Name of OST pool to use (default none)\n"      \
 161         "\tlayout:       stripe pattern type: raid0, mdt (default raid0)\n"\
 162         "\tost_indices:  List of OST indices, can be repeated multiple times\n"\
 163         "\t              Indices be specified in a format of:\n"        \
 164         "\t                -o <ost_1>,<ost_i>-<ost_j>,<ost_n>\n"        \
 165         "\t              Or:\n"                                         \
 166         "\t                -o <ost_1> -o <ost_i>-<ost_j> -o <ost_n>\n"  \
 167         "\t              If --pool is set with --ost, then the OSTs\n"  \
 168         "\t              must be the members of the pool.\n"            \
 169         "\tcomp_end:     Extent end of component, start after previous end.\n"\
 170         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 171         "\t              respectively, -1 for EOF). Must be a multiple of\n"\
 172         "\t              stripe_size.\n"
 173
 174 #define MIRROR_CREATE_HELP                                                     \
 175         "\tmirror_count: Number of mirrors to be created with the upcoming\n"  \
 176         "\t              setstripe layout options\n"                           \
 177         "\t              It defaults to 1 if not specified; if specified,\n"   \
 178         "\t              it must follow the option without a space.\n"         \
 179         "\t              The option can also be repeated multiple times to\n"  \
 180         "\t              separate mirrors that have different layouts.\n"      \
 181         "\tsetstripe options: Mirror layout\n"                                 \
 182         "\t              It can be a plain layout or a composite layout.\n"    \
 183         "\t              If not specified, the stripe options inherited\n"     \
 184         "\t              from the previous component will be used.\n"          \
 185         "\tparent:       Use default stripe options from parent directory\n"
 186
 187 #define MIRROR_EXTEND_HELP                                                     \
 188         MIRROR_CREATE_HELP                                                     \
 189         "\tvictim_file:  The layout of victim_file will be split and used\n"   \
 190         "\t              as a mirror added to the mirrored file.\n"            \
 191         "\tno-verify:    This option indicates not to verify the mirror(s)\n"  \
 192         "\t              from victim file(s) in case the victim file(s)\n"     \
 193         "\t              contains the same data as the original mirrored\n"    \
 194         "\t              file.\n"
 195
 196 #define MIRROR_EXTEND_USAGE                                                    \
 197         "                 <--mirror-count|-N[mirror_count]>\n"                 \
 198         "                 [setstripe options|--parent|-f <victim_file>]\n"     \
 199         "                 [--no-verify]\n"
 200
 201 #define SETSTRIPE_USAGE                                                 \
 202         SSM_CMD_COMMON("setstripe")                                     \
 203         MIRROR_EXTEND_USAGE                                             \
 204         "                 <directory|filename>\n"                       \
 205         SSM_HELP_COMMON                                                 \
 206         MIRROR_EXTEND_HELP
 207
 208 #define MIGRATE_USAGE                                                   \
 209         SSM_CMD_COMMON("migrate  ")                                     \
 210         "                 [--block|-b]\n"                               \
 211         "                 [--non-block|-n]\n"                           \
 212         "                 <filename>\n"                                 \
 213         SSM_HELP_COMMON                                                 \
 214         "\n"                                                            \
 215         "\tblock:        Block file access during data migration (default)\n" \
 216         "\tnon-block:    Abort migrations if concurrent access is detected\n" \
 217
 218 #define SETDIRSTRIPE_USAGE                                      \
 219         "               [--mdt-count|-c stripe_count>\n"        \
 220         "               [--mdt-index|-i mdt_index]\n"           \
 221         "               [--mdt-hash|-H mdt_hash]\n"             \
 222         "               [--default|-D] [--mode|-m mode] <dir>\n"        \
 223         "\tstripe_count: stripe count of the striped directory\n"       \
 224         "\tmdt_index: MDT index of first stripe\n"                      \
 225         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 226         "       fnv_1a_64 FNV-1a hash algorithm (default)\n"            \
 227         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 228         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 229         "\tmode: the mode of the directory\n"
 230
 231 /**
 232  * command_t mirror_cmdlist - lfs mirror commands.
 233  */
 234 command_t mirror_cmdlist[] = {
 235         { .pc_name = "create", .pc_func = lfs_mirror_create,
 236           .pc_help = "Create a mirrored file.\n"
 237                 "usage: lfs mirror create "
 238                 "<--mirror-count|-N[mirror_count]> "
 239                 "[setstripe options|--parent] ... <filename|directory>\n"
 240           MIRROR_CREATE_HELP },
 241         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 242           .pc_help = "Extend a mirrored file.\n"
 243                 "usage: lfs mirror extend "
 244                 "<--mirror-count|-N[mirror_count]> [--no-verify] "
 245                 "[setstripe options|--parent|-f <victim_file>] ... <filename>\n"
 246           MIRROR_EXTEND_HELP },
 247         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 248           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 249                 "usage: lfs mirror resync [--only <mirror_id[,...]>] "
 250                 "<mirrored file> [<mirrored file2>...]\n"},
 251         { .pc_name = "--list-commands", .pc_func = lfs_mirror_list_commands,
 252           .pc_help = "list commands supported by lfs mirror"},
 253         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 254         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 255         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 256         { .pc_help = NULL }
 257 };
 258
 259 /* all available commands */
 260 command_t cmdlist[] = {
 261         {"setstripe", lfs_setstripe, 0,
 262          "To create a file with specified striping/composite layout, or\n"
 263          "create/replace the default layout on an existing directory:\n"
 264          SSM_CMD_COMMON("setstripe")
 265          "                 <directory|filename>\n"
 266          " or\n"
 267          "To add component(s) to an existing composite file:\n"
 268          SSM_CMD_COMMON("setstripe --component-add")
 269          SSM_HELP_COMMON
 270          "To totally delete the default striping from an existing directory:\n"
 271          "usage: setstripe -d <directory>\n"
 272          " or\n"
 273          "To delete the last component(s) from an existing composite file\n"
 274          "(note that this will also delete any data in those components):\n"
 275          "usage: setstripe --component-del [--component-id|-I <comp_id>]\n"
 276          "                               [--component-flags|-F <comp_flags>]\n"
 277          "                               <filename>\n"
 278          "\tcomp_id:     Unique component ID to delete\n"
 279          "\tcomp_flags:  'init' indicating all instantiated components\n"
 280          "\t             '^init' indicating all uninstantiated components\n"
 281          "\t-I and -F cannot be specified at the same time\n"},
 282         {"getstripe", lfs_getstripe, 0,
 283          "To list the striping info for a given file or files in a\n"
 284          "directory or recursively for all files in a directory tree.\n"
 285          "usage: getstripe [--ost|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
 286          "                 [--stripe-count|-c] [--stripe-index|-i]\n"
 287          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 288          "                 [--mdt|-m] [--recursive|-r] [--raw|-R] [--yaml|-y]\n"
 289          "                 [--layout|-L] [--fid|-F] [--generation|-g]\n"
 290          "                 [--component-id[=comp_id]|-I[comp_id]]\n"
 291          "                 [--component-flags[=comp_flags]]\n"
 292          "                 [--component-count]\n"
 293          "                 [--component-start[=[+-]comp_start]]\n"
 294          "                 [--component-end[=[+-]comp_end]|-E[[+-]comp_end]]\n"
 295          "                 <directory|filename> ..."},
 296         {"setdirstripe", lfs_setdirstripe, 0,
 297          "To create a striped directory on a specified MDT. This can only\n"
 298          "be done on MDT0 with the right of administrator.\n"
 299          "usage: setdirstripe [OPTION] <directory>\n"
 300          SETDIRSTRIPE_USAGE},
 301         {"getdirstripe", lfs_getdirstripe, 0,
 302          "To list the striping info for a given directory\n"
 303          "or recursively for all directories in a directory tree.\n"
 304          "usage: getdirstripe [--obd|-O <uuid>] [--mdt-count|-c]\n"
 305          "                    [--mdt-index|-i] [--mdt-hash|-t]\n"
 306          "                    [--recursive|-r] [--yaml|-y]\n"
 307          "                    [--default|-D] <dir> ..."},
 308         {"mkdir", lfs_setdirstripe, 0,
 309          "To create a striped directory on a specified MDT. This can only\n"
 310          "be done on MDT0 with the right of administrator.\n"
 311          "usage: mkdir [OPTION] <directory>\n"
 312          SETDIRSTRIPE_USAGE},
 313         {"rm_entry", lfs_rmentry, 0,
 314          "To remove the name entry of the remote directory. Note: This\n"
 315          "command will only delete the name entry, i.e. the remote directory\n"
 316          "will become inaccessable after this command. This can only be done\n"
 317          "by the administrator\n"
 318          "usage: rm_entry <dir>\n"},
 319         {"pool_list", lfs_poollist, 0,
 320          "List pools or pool OSTs\n"
 321          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 322         {"find", lfs_find, 0,
 323          "find files matching given attributes recursively in directory tree.\n"
 324          "usage: find <directory|filename> ...\n"
 325          "     [[!] --atime|-A [+-]N] [[!] --ctime|-C [+-]N]\n"
 326          "     [[!] --mtime|-M [+-]N] [[!] --mdt|-m <uuid|index,...>]\n"
 327          "     [--maxdepth|-D N] [[!] --name|-n <pattern>]\n"
 328          "     [[!] --ost|-O <uuid|index,...>] [--print|-p] [--print0|-P]\n"
 329          "     [[!] --size|-s [+-]N[bkMGTPE]]\n"
 330          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 331          "     [[!] --stripe-index|-i <index,...>]\n"
 332          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 333          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
 334          "     [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
 335          "     [[!] --projid <projid>]\n"
 336          "     [[!] --layout|-L released,raid0,mdt]\n"
 337          "     [[!] --component-count [+-]<comp_cnt>]\n"
 338          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 339          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 340          "     [[!] --component-flags <comp_flags>]\n"
 341          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 342          "     [[!] --mdt-hash|-H <hashtype>\n"
 343          "\t !: used before an option indicates 'NOT' requested attribute\n"
 344          "\t -: used before a value indicates less than requested value\n"
 345          "\t +: used before a value indicates more than requested value\n"
 346          "\tmdt-hash:   hash type of the striped directory.\n"
 347          "\t            fnv_1a_64 FNV-1a hash algorithm\n"
 348          "\t            all_char  sum of characters % MDT_COUNT\n"},
 349         {"check", lfs_check, 0,
 350          "Display the status of MDS or OSTs (as specified in the command)\n"
 351          "or all the servers (MDS and OSTs).\n"
 352          "usage: check <osts|mds|servers>"},
 353         {"osts", lfs_osts, 0, "list OSTs connected to client "
 354          "[for specified path only]\n" "usage: osts [path]"},
 355         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 356          "[for specified path only]\n" "usage: mdts [path]"},
 357         {"df", lfs_df, 0,
 358          "report filesystem disk space usage or inodes usage"
 359          "of each MDS and all OSDs or a batch belonging to a specific pool .\n"
 360          "Usage: df [-i] [-h] [--lazy|-l] [--pool|-p <fsname>[.<pool>] [path]"},
 361         {"getname", lfs_getname, 0, "list instances and specified mount points "
 362          "[for specified path only]\n"
 363          "Usage: getname [-h]|[path ...] "},
 364 #ifdef HAVE_SYS_QUOTA_H
 365         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 366          "usage: setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 367          "                -b <block-softlimit> -B <block-hardlimit>\n"
 368          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 369          "       setquota <-u|--user|-g|--group|-p|--projid> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 370          "                [--block-softlimit <block-softlimit>]\n"
 371          "                [--block-hardlimit <block-hardlimit>]\n"
 372          "                [--inode-softlimit <inode-softlimit>]\n"
 373          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 374          "       setquota [-t] <-u|--user|-g|--group|-p|--projid>\n"
 375          "                [--block-grace <block-grace>]\n"
 376          "                [--inode-grace <inode-grace>] <filesystem>\n"
 377          "       -b can be used instead of --block-softlimit/--block-grace\n"
 378          "       -B can be used instead of --block-hardlimit\n"
 379          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 380          "       -I can be used instead of --inode-hardlimit\n\n"
 381          "Note: The total quota space will be split into many qunits and\n"
 382          "      balanced over all server targets, the minimal qunit size is\n"
 383          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 384          "      Quota space rebalancing process will stop when this mininum\n"
 385          "      value is reached. As a result, quota exceeded can be returned\n"
 386          "      while many targets still have 1MB or 1K inodes of spare\n"
 387          "      quota space."},
 388         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 389          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
 390                        "<ost_idx>]\n"
 391          "             [<-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>\n"
 392          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g|-p> <filesystem>"},
 393         {"project", lfs_project, 0,
 394          "Change or list project attribute for specified file or directory.\n"
 395          "usage: project [-d|-r] <file|directory...>\n"
 396          "         list project ID and flags on file(s) or directories\n"
 397          "       project [-p id] [-s] [-r] <file|directory...>\n"
 398          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 399          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 400          "         check project ID and flags on file(s) or directories, print outliers\n"
 401          "       project -C [-r] [-k] <file|directory...>\n"
 402          "         clear the project inherit flag and ID on the file or directory\n"
 403         },
 404 #endif
 405         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
 406          "usage: flushctx [-k] [mountpoint...]"},
 407         {"cp", lfs_cp, 0,
 408          "Remote user copy files and directories.\n"
 409          "usage: cp [OPTION]... [-T] SOURCE DEST\n\tcp [OPTION]... SOURCE... DIRECTORY\n\tcp [OPTION]... -t DIRECTORY SOURCE..."},
 410         {"ls", lfs_ls, 0,
 411          "Remote user list directory contents.\n"
 412          "usage: ls [OPTION]... [FILE]..."},
 413         {"changelog", lfs_changelog, 0,
 414          "Show the metadata changes on an MDT."
 415          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 416         {"changelog_clear", lfs_changelog_clear, 0,
 417          "Indicate that old changelog records up to <endrec> are no longer of "
 418          "interest to consumer <id>, allowing the system to free up space.\n"
 419          "An <endrec> of 0 means all records.\n"
 420          "usage: changelog_clear <mdtname> <id> <endrec>"},
 421         {"fid2path", lfs_fid2path, 0,
 422          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 423          "specify link number <linkno>.\n"
 424         /* "For a historical link name, specify changelog record <recno>.\n" */
 425          "usage: fid2path [--link <linkno>] <fsname|rootpath> <fid> ..."
 426                 /* [ --rec <recno> ] */ },
 427         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 428          "usage: path2fid [--parents] <path> ..."},
 429         {"data_version", lfs_data_version, 0, "Display file data version for "
 430          "a given path.\n" "usage: data_version -[n|r|w] <path>"},
 431         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 432          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 433         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 434          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 435          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 436         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 437          "files.\n"
 438          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 439          "[--archived] [--lost] <file> ..."},
 440         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 441          "given files.\n" "usage: hsm_action <file> ..."},
 442         {"hsm_archive", lfs_hsm_archive, 0,
 443          "Archive file to external storage.\n"
 444          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 445          "<file> ..."},
 446         {"hsm_restore", lfs_hsm_restore, 0,
 447          "Restore file from external storage.\n"
 448          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 449         {"hsm_release", lfs_hsm_release, 0,
 450          "Release files from Lustre.\n"
 451          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 452         {"hsm_remove", lfs_hsm_remove, 0,
 453          "Remove file copy from external storage.\n"
 454          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 455          "[--archive NUM]\n"
 456          "                  (FILE [FILE ...] | "
 457          "--mntpath MOUNTPATH FID [FID ...])\n"
 458          "\n"
 459          "Note: To remove an archived copy of a file already deleted from a "
 460          "Lustre FS, the\n"
 461          "--mntpath option and a list of FIDs must be specified"
 462         },
 463         {"hsm_cancel", lfs_hsm_cancel, 0,
 464          "Cancel requests related to specified files.\n"
 465          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 466         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 467          "usage: swap_layouts <path1> <path2>"},
 468         {"migrate", lfs_setstripe_migrate, 0,
 469          "migrate a directory between MDTs.\n"
 470          "usage: migrate --mdt-index <mdt_idx> [--verbose|-v] "
 471          "<directory>\n"
 472          "\tmdt_idx:      index of the destination MDT\n"
 473          "\n"
 474          "migrate file objects from one OST "
 475          "layout\nto another (may be not safe with concurent writes).\n"
 476          "usage: migrate  "
 477          "[--stripe-count|-c] <stripe_count>\n"
 478          "              [--stripe-index|-i] <start_ost_index>\n"
 479          "              [--stripe-size|-S] <stripe_size>\n"
 480          "              [--pool|-p] <pool_name>\n"
 481          "              [--ost-list|-o] <ost_indices>\n"
 482          "              [--block|-b]\n"
 483          "              [--non-block|-n]\n"
 484          "              <file|directory>\n"
 485          "\tstripe_count:     number of OSTs to stripe a file over\n"
 486          "\tstripe_ost_index: index of the first OST to stripe a file over\n"
 487          "\tstripe_size:      number of bytes to store before moving to the next OST\n"
 488          "\tpool_name:        name of the predefined pool of OSTs\n"
 489          "\tost_indices:      OSTs to stripe over, in order\n"
 490          "\tblock:            wait for the operation to return before continuing\n"
 491          "\tnon-block:        do not wait for the operation to return.\n"},
 492         {"mv", lfs_mv, 0,
 493          "To move directories between MDTs. This command is deprecated, "
 494          "use \"migrate\" instead.\n"
 495          "usage: mv <directory|filename> [--mdt-index|-M] <mdt_index> "
 496          "[--verbose|-v]\n"},
 497         {"ladvise", lfs_ladvise, 0,
 498          "Provide servers with advice about access patterns for a file.\n"
 499          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 500          "               [--background|-b] [--unset|-u]\n\n"
 501          "               {[--end|-e END[kMGT]] | [--length|-l LENGTH[kMGT]]}\n"
 502          "               {[--mode|-m [READ,WRITE]}\n"
 503          "               <file> ...\n"},
 504         {"mirror", lfs_mirror, mirror_cmdlist,
 505          "lfs commands used to manage files with mirrored components:\n"
 506          "lfs mirror create - create a mirrored file or directory\n"
 507          "lfs mirror extend - add mirror(s) to an existing file\n"
 508          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 509          "lfs mirror resync - resynchronize an out-of-sync mirrored file\n"
 510          "lfs mirror verify - verify a mirrored file\n"},
 511         {"help", Parser_help, 0, "help"},
 512         {"exit", Parser_quit, 0, "quit"},
 513         {"quit", Parser_quit, 0, "quit"},
 514         {"--version", Parser_version, 0,
 515          "output build version of the utility and exit"},
 516         {"--list-commands", lfs_list_commands, 0,
 517          "list commands supported by the utility and exit"},
 518         { 0, 0, 0, NULL }
 519 };
 520
 521
 522 static int check_hashtype(const char *hashtype)
 523 {
 524         int i;
 525
 526         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 527                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 528                         return i;
 529
 530         return 0;
 531 }
 532
 533
 534 static const char *error_loc = "syserror";
 535
 536 enum {
 537         MIGRATION_NONBLOCK      = 1 << 0,
 538         MIGRATION_MIRROR        = 1 << 1,
 539 };
 540
 541 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
 542                                 struct llapi_layout *layout);
 543
 544 static int
 545 migrate_open_files(const char *name, const struct llapi_stripe_param *param,
 546                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 547 {
 548         int                      fd = -1;
 549         int                      fdv = -1;
 550         int                      mdt_index;
 551         int                      random_value;
 552         char                     parent[PATH_MAX];
 553         char                     volatile_file[PATH_MAX];
 554         char                    *ptr;
 555         int                      rc;
 556         struct stat              st;
 557         struct stat              stv;
 558
 559         if (param == NULL && layout == NULL) {
 560                 error_loc = "layout information";
 561                 return -EINVAL;
 562         }
 563
 564         /* search for file directory pathname */
 565         if (strlen(name) > sizeof(parent) - 1) {
 566                 error_loc = "source file name";
 567                 return -ERANGE;
 568         }
 569
 570         strncpy(parent, name, sizeof(parent));
 571         ptr = strrchr(parent, '/');
 572         if (ptr == NULL) {
 573                 if (getcwd(parent, sizeof(parent)) == NULL) {
 574                         error_loc = "getcwd";
 575                         return -errno;
 576                 }
 577         } else {
 578                 if (ptr == parent) /* leading '/' */
 579                         ptr = parent + 1;
 580                 *ptr = '\0';
 581         }
 582
 583         /* open file, direct io */
 584         /* even if the file is only read, WR mode is nedeed to allow
 585          * layout swap on fd */
 586         fd = open(name, O_RDWR | O_DIRECT);
 587         if (fd < 0) {
 588                 rc = -errno;
 589                 error_loc = "cannot open source file";
 590                 return rc;
 591         }
 592
 593         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 594         if (rc < 0) {
 595                 error_loc = "cannot get MDT index";
 596                 goto out;
 597         }
 598
 599         do {
 600                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 601                 mode_t open_mode = S_IRUSR | S_IWUSR;
 602
 603                 random_value = random();
 604                 rc = snprintf(volatile_file, sizeof(volatile_file),
 605                               "%s/%s:%.4X:%.4X", parent, LUSTRE_VOLATILE_HDR,
 606                               mdt_index, random_value);
 607                 if (rc >= sizeof(volatile_file)) {
 608                         rc = -ENAMETOOLONG;
 609                         break;
 610                 }
 611
 612                 /* create, open a volatile file, use caching (ie no directio) */
 613                 if (param != NULL)
 614                         fdv = llapi_file_open_param(volatile_file, open_flags,
 615                                                     open_mode, param);
 616                 else
 617                         fdv = lfs_component_create(volatile_file, open_flags,
 618                                                    open_mode, layout);
 619         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 620
 621         if (rc < 0) {
 622                 error_loc = "cannot create volatile file";
 623                 goto out;
 624         }
 625
 626         /* In case the MDT does not support creation of volatile files
 627          * we should try to unlink it. */
 628         (void)unlink(volatile_file);
 629
 630         /* Not-owner (root?) special case.
 631          * Need to set owner/group of volatile file like original.
 632          * This will allow to pass related check during layout_swap.
 633          */
 634         rc = fstat(fd, &st);
 635         if (rc != 0) {
 636                 rc = -errno;
 637                 error_loc = "cannot stat source file";
 638                 goto out;
 639         }
 640
 641         rc = fstat(fdv, &stv);
 642         if (rc != 0) {
 643                 rc = -errno;
 644                 error_loc = "cannot stat volatile";
 645                 goto out;
 646         }
 647
 648         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 649                 rc = fchown(fdv, st.st_uid, st.st_gid);
 650                 if (rc != 0) {
 651                         rc = -errno;
 652                         error_loc = "cannot change ownwership of volatile";
 653                         goto out;
 654                 }
 655         }
 656
 657 out:
 658         if (rc < 0) {
 659                 if (fd > 0)
 660                         close(fd);
 661                 if (fdv > 0)
 662                         close(fdv);
 663         } else {
 664                 *fd_src = fd;
 665                 *fd_tgt = fdv;
 666                 error_loc = NULL;
 667         }
 668         return rc;
 669 }
 670
 671 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 672 {
 673         struct llapi_layout *layout;
 674         size_t   buf_size = 4 * 1024 * 1024;
 675         void    *buf = NULL;
 676         ssize_t  rsize = -1;
 677         ssize_t  wsize = 0;
 678         size_t   rpos = 0;
 679         size_t   wpos = 0;
 680         off_t    bufoff = 0;
 681         int      rc;
 682
 683         layout = llapi_layout_get_by_fd(fd_src, 0);
 684         if (layout != NULL) {
 685                 uint64_t stripe_size;
 686
 687                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 688                 if (rc == 0)
 689                         buf_size = stripe_size;
 690
 691                 llapi_layout_free(layout);
 692         }
 693
 694         /* Use a page-aligned buffer for direct I/O */
 695         rc = posix_memalign(&buf, getpagesize(), buf_size);
 696         if (rc != 0)
 697                 return -rc;
 698
 699         while (1) {
 700                 /* read new data only if we have written all
 701                  * previously read data */
 702                 if (wpos == rpos) {
 703                         if (check_file) {
 704                                 rc = check_file(fd_src);
 705                                 if (rc < 0)
 706                                         break;
 707                         }
 708
 709                         rsize = read(fd_src, buf, buf_size);
 710                         if (rsize < 0) {
 711                                 rc = -errno;
 712                                 break;
 713                         }
 714                         rpos += rsize;
 715                         bufoff = 0;
 716                 }
 717                 /* eof ? */
 718                 if (rsize == 0)
 719                         break;
 720
 721                 wsize = write(fd_dst, buf + bufoff, rpos - wpos);
 722                 if (wsize < 0) {
 723                         rc = -errno;
 724                         break;
 725                 }
 726                 wpos += wsize;
 727                 bufoff += wsize;
 728         }
 729
 730         if (rc == 0) {
 731                 rc = fsync(fd_dst);
 732                 if (rc < 0)
 733                         rc = -errno;
 734         }
 735
 736         free(buf);
 737         return rc;
 738 }
 739
 740 static int migrate_copy_timestamps(int fd, int fdv)
 741 {
 742         struct stat st;
 743
 744         if (fstat(fd, &st) == 0) {
 745                 struct timeval tv[2] = {
 746                         {.tv_sec = st.st_atime},
 747                         {.tv_sec = st.st_mtime}
 748                 };
 749
 750                 return futimes(fdv, tv);
 751         }
 752
 753         return -errno;
 754 }
 755
 756 static int migrate_block(int fd, int fdv)
 757 {
 758         __u64   dv1;
 759         int     gid;
 760         int     rc;
 761         int     rc2;
 762
 763         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 764         if (rc < 0) {
 765                 error_loc = "cannot get dataversion";
 766                 return rc;
 767         }
 768
 769         do
 770                 gid = random();
 771         while (gid == 0);
 772
 773         /* The grouplock blocks all concurrent accesses to the file.
 774          * It has to be taken after llapi_get_data_version as it would
 775          * block it too. */
 776         rc = llapi_group_lock(fd, gid);
 777         if (rc < 0) {
 778                 error_loc = "cannot get group lock";
 779                 return rc;
 780         }
 781
 782         rc = migrate_copy_data(fd, fdv, NULL);
 783         if (rc < 0) {
 784                 error_loc = "data copy failed";
 785                 goto out_unlock;
 786         }
 787
 788         /* Make sure we keep original atime/mtime values */
 789         rc = migrate_copy_timestamps(fd, fdv);
 790         if (rc < 0) {
 791                 error_loc = "timestamp copy failed";
 792                 goto out_unlock;
 793         }
 794
 795         /* swap layouts
 796          * for a migration we need to check data version on file did
 797          * not change.
 798          *
 799          * Pass in gid=0 since we already own grouplock. */
 800         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
 801                                            SWAP_LAYOUTS_CHECK_DV1);
 802         if (rc == -EAGAIN) {
 803                 error_loc = "file changed";
 804                 goto out_unlock;
 805         } else if (rc < 0) {
 806                 error_loc = "cannot swap layout";
 807                 goto out_unlock;
 808         }
 809
 810 out_unlock:
 811         rc2 = llapi_group_unlock(fd, gid);
 812         if (rc2 < 0 && rc == 0) {
 813                 error_loc = "unlock group lock";
 814                 rc = rc2;
 815         }
 816
 817         return rc;
 818 }
 819
 820 /**
 821  * Internal helper for migrate_copy_data(). Check lease and report error if
 822  * need be.
 823  *
 824  * \param[in]  fd           File descriptor on which to check the lease.
 825  *
 826  * \retval 0       Migration can keep on going.
 827  * \retval -errno  Error occurred, abort migration.
 828  */
 829 static int check_lease(int fd)
 830 {
 831         int rc;
 832
 833         rc = llapi_lease_check(fd);
 834         if (rc > 0)
 835                 return 0; /* llapi_check_lease returns > 0 on success. */
 836
 837         return -EBUSY;
 838 }
 839
 840 static int migrate_nonblock(int fd, int fdv)
 841 {
 842         __u64   dv1;
 843         __u64   dv2;
 844         int     rc;
 845
 846         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 847         if (rc < 0) {
 848                 error_loc = "cannot get data version";
 849                 return rc;
 850         }
 851
 852         rc = migrate_copy_data(fd, fdv, check_lease);
 853         if (rc < 0) {
 854                 error_loc = "data copy failed";
 855                 return rc;
 856         }
 857
 858         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
 859         if (rc != 0) {
 860                 error_loc = "cannot get data version";
 861                 return rc;
 862         }
 863
 864         if (dv1 != dv2) {
 865                 rc = -EAGAIN;
 866                 error_loc = "source file changed";
 867                 return rc;
 868         }
 869
 870         /* Make sure we keep original atime/mtime values */
 871         rc = migrate_copy_timestamps(fd, fdv);
 872         if (rc < 0) {
 873                 error_loc = "timestamp copy failed";
 874                 return rc;
 875         }
 876
 877         return 0;
 878 }
 879
 880 static int lfs_component_set(char *fname, int comp_id, __u32 flags)
 881 {
 882         return -ENOTSUP;
 883 }
 884
 885 static int lfs_component_del(char *fname, __u32 comp_id, __u32 flags)
 886 {
 887         int     rc = 0;
 888
 889         if (flags != 0 && comp_id != 0)
 890                 return -EINVAL;
 891
 892         /* LCME_FL_INIT is the only supported flag in PFL */
 893         if (flags != 0) {
 894                 if (flags & ~LCME_KNOWN_FLAGS) {
 895                         fprintf(stderr,
 896                                 "%s setstripe: bad component flags %#x\n",
 897                                 progname, flags);
 898                         return -EINVAL;
 899                 }
 900         } else if (comp_id > LCME_ID_MAX) {
 901                 fprintf(stderr, "%s setstripe: bad component id %u\n",
 902                         progname, comp_id);
 903                 return -EINVAL;
 904         }
 905
 906         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
 907         if (rc)
 908                 fprintf(stderr,
 909                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
 910                         progname, comp_id, fname, strerror(errno));
 911         return rc;
 912 }
 913
 914 static int lfs_component_add(char *fname, struct llapi_layout *layout)
 915 {
 916         int     rc;
 917
 918         if (layout == NULL)
 919                 return -EINVAL;
 920
 921         rc = llapi_layout_file_comp_add(fname, layout);
 922         if (rc)
 923                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
 924                         fname, strerror(errno));
 925         return rc;
 926 }
 927
 928 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
 929                                 struct llapi_layout *layout)
 930 {
 931         struct stat     st;
 932         int     fd;
 933
 934         if (layout == NULL)
 935                 return -EINVAL;
 936
 937         fd = lstat(fname, &st);
 938         if (fd == 0 && S_ISDIR(st.st_mode))
 939                 open_flags = O_DIRECTORY | O_RDONLY;
 940
 941         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
 942         if (fd < 0)
 943                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
 944                         S_ISDIR(st.st_mode) ?
 945                                 "set default composite layout for" :
 946                                 "create composite file",
 947                         fname, strerror(errno));
 948         return fd;
 949 }
 950
 951 static int lfs_migrate(char *name, __u64 migration_flags,
 952                        struct llapi_stripe_param *param,
 953                        struct llapi_layout *layout)
 954 {
 955         int fd = -1;
 956         int fdv = -1;
 957         int rc;
 958
 959         rc = migrate_open_files(name, param, layout, &fd, &fdv);
 960         if (rc < 0)
 961                 goto out;
 962
 963         if (!(migration_flags & MIGRATION_NONBLOCK)) {
 964                 /* Blocking mode (forced if servers do not support file lease).
 965                  * It is also the default mode, since we cannot distinguish
 966                  * between a broken lease and a server that does not support
 967                  * atomic swap/close (LU-6785) */
 968                 rc = migrate_block(fd, fdv);
 969                 goto out;
 970         }
 971
 972         rc = llapi_lease_get(fd, LL_LEASE_RDLCK);
 973         if (rc < 0) {
 974                 error_loc = "cannot get lease";
 975                 goto out;
 976         }
 977
 978         rc = migrate_nonblock(fd, fdv);
 979         if (rc < 0) {
 980                 llapi_lease_put(fd);
 981                 goto out;
 982         }
 983
 984         /* Atomically put lease, swap layouts and close.
 985          * for a migration we need to check data version on file did
 986          * not change. */
 987         rc = llapi_fswap_layouts(fd, fdv, 0, 0,
 988                                  migration_flags & MIGRATION_MIRROR ?
 989                                  MERGE_LAYOUTS_CLOSE : SWAP_LAYOUTS_CLOSE);
 990         if (rc < 0) {
 991                 error_loc = "cannot swap layout";
 992                 goto out;
 993         }
 994
 995 out:
 996         if (fd >= 0)
 997                 close(fd);
 998
 999         if (fdv >= 0)
1000                 close(fdv);
1001
1002         if (rc < 0)
1003                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1004                         progname, name, error_loc, strerror(-rc));
1005         return rc;
1006 }
1007
1008 /**
1009  * struct mirror_args - Command-line arguments for mirror(s).
1010  * @m_count:  Number of mirrors to be created with this layout.
1011  * @m_layout: Mirror layout.
1012  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1013  * @m_next:   Point to the next node of the list.
1014  *
1015  * Command-line arguments for mirror(s) will be parsed and stored in
1016  * a linked list that consists of this structure.
1017  */
1018 struct mirror_args {
1019         __u32                   m_count;
1020         struct llapi_layout     *m_layout;
1021         const char              *m_file;
1022         struct mirror_args      *m_next;
1023 };
1024
1025 static inline int mirror_sanity_check_one(struct llapi_layout *layout)
1026 {
1027         uint64_t start, end;
1028         uint64_t pattern;
1029         int rc;
1030
1031         /* LU-10112: do not support dom+flr in phase 1 */
1032         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
1033         if (rc)
1034                 return -errno;
1035
1036         rc = llapi_layout_pattern_get(layout, &pattern);
1037         if (rc)
1038                 return -errno;
1039
1040         if (pattern == LOV_PATTERN_MDT || pattern == LLAPI_LAYOUT_MDT) {
1041                 fprintf(stderr, "error: %s: doesn't support dom+flr for now\n",
1042                         progname);
1043                 return -ENOTSUP;
1044         }
1045
1046         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_LAST);
1047         if (rc)
1048                 return -errno;
1049
1050         rc = llapi_layout_comp_extent_get(layout, &start, &end);
1051         if (rc)
1052                 return -errno;
1053
1054         if (end != LUSTRE_EOF) {
1055                 fprintf(stderr, "error: %s: mirror layout doesn't reach eof\n",
1056                         progname);
1057                 return -EINVAL;
1058         }
1059
1060         return 0;
1061 }
1062
1063 /**
1064  * enum mirror_flags - Flags for extending a mirrored file.
1065  * @NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1066  *             in case the victim file(s) contains the same data as the
1067  *             original mirrored file.
1068  *
1069  * Flags for extending a mirrored file.
1070  */
1071 enum mirror_flags {
1072         NO_VERIFY       = 0x1,
1073 };
1074
1075 /**
1076  * mirror_create_sanity_check() - Check mirror list.
1077  * @list:  A linked list that stores the mirror arguments.
1078  *
1079  * This function does a sanity check on @list for creating
1080  * a mirrored file.
1081  *
1082  * Return: 0 on success or a negative error code on failure.
1083  */
1084 static int mirror_create_sanity_check(const char *fname,
1085                                       struct mirror_args *list)
1086 {
1087         int rc = 0;
1088         bool has_m_file = false;
1089         bool has_m_layout = false;
1090
1091         if (list == NULL)
1092                 return -EINVAL;
1093
1094         if (fname) {
1095                 struct llapi_layout *layout;
1096
1097                 layout = llapi_layout_get_by_path(fname, 0);
1098                 if (!layout) {
1099                         fprintf(stderr,
1100                                 "error: %s: file '%s' couldn't get layout\n",
1101                                 progname, fname);
1102                         return -ENODATA;
1103                 }
1104
1105                 rc = mirror_sanity_check_one(layout);
1106                 llapi_layout_free(layout);
1107
1108                 if (rc)
1109                         return rc;
1110         }
1111
1112         while (list != NULL) {
1113                 if (list->m_file != NULL) {
1114                         has_m_file = true;
1115                         llapi_layout_free(list->m_layout);
1116
1117                         list->m_layout =
1118                                 llapi_layout_get_by_path(list->m_file, 0);
1119                         if (list->m_layout == NULL) {
1120                                 fprintf(stderr,
1121                                         "error: %s: file '%s' has no layout\n",
1122                                         progname, list->m_file);
1123                                 return -ENODATA;
1124                         }
1125                 } else {
1126                         if (list->m_layout != NULL)
1127                                 has_m_layout = true;
1128                         else {
1129                                 fprintf(stderr, "error: %s: no mirror layout\n",
1130                                         progname);
1131                                 return -EINVAL;
1132                         }
1133                 }
1134
1135                 rc = mirror_sanity_check_one(list->m_layout);
1136                 if (rc)
1137                         return rc;
1138
1139                 list = list->m_next;
1140         }
1141
1142         if (has_m_file && has_m_layout) {
1143                 fprintf(stderr, "error: %s: -f <victim_file> option should not "
1144                         "be specified with setstripe options or "
1145                         "--parent option\n", progname);
1146                 return -EINVAL;
1147         }
1148
1149         return 0;
1150 }
1151
1152 /**
1153  * mirror_create() - Create a mirrored file.
1154  * @fname:        The file to be created.
1155  * @mirror_list:  A linked list that stores the mirror arguments.
1156  *
1157  * This function creates a mirrored file @fname with the mirror(s)
1158  * from @mirror_list.
1159  *
1160  * Return: 0 on success or a negative error code on failure.
1161  */
1162 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1163 {
1164         struct llapi_layout *layout = NULL;
1165         struct mirror_args *cur_mirror = NULL;
1166         uint16_t mirror_count = 0;
1167         int i = 0;
1168         int rc = 0;
1169
1170         rc = mirror_create_sanity_check(NULL, mirror_list);
1171         if (rc)
1172                 return rc;
1173
1174         cur_mirror = mirror_list;
1175         while (cur_mirror != NULL) {
1176                 for (i = 0; i < cur_mirror->m_count; i++) {
1177                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1178                         if (rc) {
1179                                 rc = -errno;
1180                                 fprintf(stderr, "error: %s: "
1181                                         "merge layout failed: %s\n",
1182                                         progname, strerror(errno));
1183                                 goto error;
1184                         }
1185                 }
1186                 mirror_count += cur_mirror->m_count;
1187                 cur_mirror = cur_mirror->m_next;
1188         }
1189
1190         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1191         if (rc) {
1192                 rc = -errno;
1193                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1194                         progname, strerror(errno));
1195                 goto error;
1196         }
1197
1198         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0644,
1199                                   layout);
1200         if (rc >= 0) {
1201                 close(rc);
1202                 rc = 0;
1203         }
1204
1205 error:
1206         llapi_layout_free(layout);
1207         return rc;
1208 }
1209
1210 /**
1211  * Compare files and check lease on @fd.
1212  *
1213  * \retval bytes number of bytes are the same
1214  */
1215 static ssize_t mirror_file_compare(int fd, int fdv)
1216 {
1217         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1218         void *buf;
1219         ssize_t bytes_done = 0;
1220         ssize_t bytes_read = 0;
1221
1222         buf = malloc(buflen * 2);
1223         if (!buf)
1224                 return -ENOMEM;
1225
1226         while (1) {
1227                 if (!llapi_lease_check(fd)) {
1228                         bytes_done = -EBUSY;
1229                         break;
1230                 }
1231
1232                 bytes_read = read(fd, buf, buflen);
1233                 if (bytes_read <= 0)
1234                         break;
1235
1236                 if (bytes_read != read(fdv, buf + buflen, buflen))
1237                         break;
1238
1239                 /* XXX: should compute the checksum on each buffer and then
1240                  * compare checksum to avoid cache collision */
1241                 if (memcmp(buf, buf + buflen, bytes_read))
1242                         break;
1243
1244                 bytes_done += bytes_read;
1245         }
1246
1247         free(buf);
1248
1249         return bytes_done;
1250 }
1251
1252 static int mirror_extend_file(const char *fname, const char *victim_file,
1253                               enum mirror_flags mirror_flags)
1254 {
1255         int fd = -1;
1256         int fdv = -1;
1257         struct stat stbuf;
1258         struct stat stbuf_v;
1259         __u64 dv;
1260         int rc;
1261
1262         fd = open(fname, O_RDWR);
1263         if (fd < 0) {
1264                 error_loc = "open source file";
1265                 rc = -errno;
1266                 goto out;
1267         }
1268
1269         fdv = open(victim_file, O_RDWR);
1270         if (fdv < 0) {
1271                 error_loc = "open target file";
1272                 rc = -errno;
1273                 goto out;
1274         }
1275
1276         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1277                 error_loc = "stat source or target file";
1278                 rc = -errno;
1279                 goto out;
1280         }
1281
1282         if (stbuf.st_dev != stbuf_v.st_dev) {
1283                 error_loc = "stat source and target file";
1284                 rc = -EXDEV;
1285                 goto out;
1286         }
1287
1288         /* mirrors should be of the same size */
1289         if (stbuf.st_size != stbuf_v.st_size) {
1290                 error_loc = "file sizes don't match";
1291                 rc = -EINVAL;
1292                 goto out;
1293         }
1294
1295         rc = llapi_lease_get(fd, LL_LEASE_RDLCK);
1296         if (rc < 0) {
1297                 error_loc = "cannot get lease";
1298                 goto out;
1299         }
1300
1301         if (!(mirror_flags & NO_VERIFY)) {
1302                 ssize_t ret;
1303                 /* mirrors should have the same contents */
1304                 ret = mirror_file_compare(fd, fdv);
1305                 if (ret != stbuf.st_size) {
1306                         error_loc = "file busy or contents don't match";
1307                         rc = ret < 0 ? ret : -EINVAL;
1308                         goto out;
1309                 }
1310         }
1311
1312         /* Get rid of caching pages from clients */
1313         rc = llapi_get_data_version(fd, &dv, LL_DV_WR_FLUSH);
1314         if (rc < 0) {
1315                 error_loc = "cannot get data version";
1316                 return rc;
1317         }
1318
1319         rc = llapi_get_data_version(fdv, &dv, LL_DV_WR_FLUSH);
1320         if (rc < 0) {
1321                 error_loc = "cannot get data version";
1322                 return rc;
1323
1324         }
1325
1326         /* Make sure we keep original atime/mtime values */
1327         rc = migrate_copy_timestamps(fd, fdv);
1328
1329         /* Atomically put lease, swap layouts and close.
1330          * for a migration we need to check data version on file did
1331          * not change. */
1332         rc = llapi_fswap_layouts(fd, fdv, 0, 0, MERGE_LAYOUTS_CLOSE);
1333         if (rc < 0) {
1334                 error_loc = "cannot swap layout";
1335                 goto out;
1336         }
1337
1338 out:
1339         if (fd >= 0)
1340                 close(fd);
1341
1342         if (fdv >= 0)
1343                 close(fdv);
1344
1345         if (!rc)
1346                 (void) unlink(victim_file);
1347
1348         if (rc < 0)
1349                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1350                         progname, fname, error_loc, strerror(-rc));
1351         return rc;
1352 }
1353
1354 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1355                          enum mirror_flags mirror_flags)
1356 {
1357         int rc;
1358
1359         rc = mirror_create_sanity_check(fname, mirror_list);
1360         if (rc)
1361                 return rc;
1362
1363         while (mirror_list) {
1364                 if (mirror_list->m_file != NULL) {
1365                         rc = mirror_extend_file(fname, mirror_list->m_file,
1366                                                 mirror_flags);
1367                 } else {
1368                         __u32 mirror_count = mirror_list->m_count;
1369
1370                         while (mirror_count > 0) {
1371                                 rc = lfs_migrate(fname,
1372                                         MIGRATION_NONBLOCK | MIGRATION_MIRROR,
1373                                         NULL, mirror_list->m_layout);
1374                                 if (rc)
1375                                         break;
1376
1377                                 --mirror_count;
1378                         }
1379                 }
1380                 if (rc)
1381                         break;
1382
1383                 mirror_list = mirror_list->m_next;
1384         }
1385
1386         return rc;
1387 }
1388
1389 /**
1390  * Parse a string containing an target index list into an array of integers.
1391  *
1392  * The input string contains a comma delimited list of individual
1393  * indices and ranges, for example "1,2-4,7". Add the indices into the
1394  * \a tgts array and remove duplicates.
1395  *
1396  * \param[out] tgts    array to store indices in
1397  * \param[in] size     size of \a tgts array
1398  * \param[in] offset   starting index in \a tgts
1399  * \param[in] arg      string containing OST index list
1400  *
1401  * \retval positive    number of indices in \a tgts
1402  * \retval -EINVAL     unable to parse \a arg
1403  */
1404 static int parse_targets(__u32 *tgts, int size, int offset, char *arg)
1405 {
1406         int rc;
1407         int nr = offset;
1408         int slots = size - offset;
1409         char *ptr = NULL;
1410         bool end_of_loop;
1411
1412         if (arg == NULL)
1413                 return -EINVAL;
1414
1415         end_of_loop = false;
1416         while (!end_of_loop) {
1417                 int start_index;
1418                 int end_index;
1419                 int i;
1420                 char *endptr = NULL;
1421
1422                 rc = -EINVAL;
1423
1424                 ptr = strchrnul(arg, ',');
1425
1426                 end_of_loop = *ptr == '\0';
1427                 *ptr = '\0';
1428
1429                 start_index = strtol(arg, &endptr, 0);
1430                 if (endptr == arg) /* no data at all */
1431                         break;
1432                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
1433                         break;
1434
1435                 end_index = start_index;
1436                 if (*endptr == '-') {
1437                         end_index = strtol(endptr + 1, &endptr, 0);
1438                         if (*endptr != '\0')
1439                                 break;
1440                         if (end_index < start_index)
1441                                 break;
1442                 }
1443
1444                 for (i = start_index; i <= end_index && slots > 0; i++) {
1445                         int j;
1446
1447                         /* remove duplicate */
1448                         for (j = 0; j < offset; j++) {
1449                                 if (tgts[j] == i)
1450                                         break;
1451                         }
1452                         if (j == offset) { /* no duplicate */
1453                                 tgts[nr++] = i;
1454                                 --slots;
1455                         }
1456                 }
1457                 if (slots == 0 && i < end_index)
1458                         break;
1459
1460                 *ptr = ',';
1461                 arg = ++ptr;
1462                 offset = nr;
1463                 rc = 0;
1464         }
1465         if (!end_of_loop && ptr != NULL)
1466                 *ptr = ',';
1467
1468         return rc < 0 ? rc : nr;
1469 }
1470
1471 struct lfs_setstripe_args {
1472         unsigned long long       lsa_comp_end;
1473         unsigned long long       lsa_stripe_size;
1474         long long                lsa_stripe_count;
1475         long long                lsa_stripe_off;
1476         __u32                    lsa_comp_flags;
1477         int                      lsa_nr_tgts;
1478         unsigned long long       lsa_pattern;
1479         __u32                   *lsa_tgts;
1480         char                    *lsa_pool_name;
1481 };
1482
1483 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
1484 {
1485         memset(lsa, 0, sizeof(*lsa));
1486
1487         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
1488         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
1489         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
1490         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
1491         lsa->lsa_pool_name = NULL;
1492 }
1493
1494 /**
1495  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
1496  * @lsa: Stripe options to be initialized and inherited.
1497  *
1498  * This function initializes stripe options in @lsa and inherit
1499  * stripe_size, stripe_count and OST pool_name options.
1500  *
1501  * Return: void.
1502  */
1503 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
1504 {
1505         unsigned long long stripe_size;
1506         long long stripe_count;
1507         char *pool_name = NULL;
1508
1509         stripe_size = lsa->lsa_stripe_size;
1510         stripe_count = lsa->lsa_stripe_count;
1511         pool_name = lsa->lsa_pool_name;
1512
1513         setstripe_args_init(lsa);
1514
1515         lsa->lsa_stripe_size = stripe_size;
1516         lsa->lsa_stripe_count = stripe_count;
1517         lsa->lsa_pool_name = pool_name;
1518 }
1519
1520 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
1521 {
1522         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
1523                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
1524                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
1525                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
1526                 lsa->lsa_pool_name != NULL ||
1527                 lsa->lsa_comp_end != 0);
1528 }
1529
1530 /**
1531  * comp_args_to_layout() - Create or extend a composite layout.
1532  * @composite:       Pointer to the composite layout.
1533  * @lsa:             Stripe options for the new component.
1534  *
1535  * This function creates or extends a composite layout by adding a new
1536  * component with stripe options from @lsa.
1537  *
1538  * Return: 0 on success or an error code on failure.
1539  */
1540 static int comp_args_to_layout(struct llapi_layout **composite,
1541                                struct lfs_setstripe_args *lsa)
1542 {
1543         struct llapi_layout *layout = *composite;
1544         uint64_t prev_end = 0;
1545         int i = 0, rc;
1546
1547         if (layout == NULL) {
1548                 layout = llapi_layout_alloc();
1549                 if (layout == NULL) {
1550                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
1551                                 strerror(errno));
1552                         return -ENOMEM;
1553                 }
1554                 *composite = layout;
1555         } else {
1556                 uint64_t start;
1557
1558                 /* Get current component extent, current component
1559                  * must be the tail component. */
1560                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
1561                 if (rc) {
1562                         fprintf(stderr, "Get comp extent failed. %s\n",
1563                                 strerror(errno));
1564                         return rc;
1565                 }
1566
1567                 rc = llapi_layout_comp_add(layout);
1568                 if (rc) {
1569                         fprintf(stderr, "Add component failed. %s\n",
1570                                 strerror(errno));
1571                         return rc;
1572                 }
1573         }
1574
1575         rc = llapi_layout_comp_extent_set(layout, prev_end, lsa->lsa_comp_end);
1576         if (rc) {
1577                 fprintf(stderr, "Set extent [%lu, %llu) failed. %s\n",
1578                         prev_end, lsa->lsa_comp_end, strerror(errno));
1579                 return rc;
1580         }
1581
1582         /* Data-on-MDT component setting */
1583         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
1584                 /* In case of Data-on-MDT patterns the only extra option
1585                  * applicable is stripe size option. */
1586                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
1587                         fprintf(stderr, "Option 'stripe-count' can't be "
1588                                 "specified with Data-on-MDT component: %lld\n",
1589                                 lsa->lsa_stripe_count);
1590                         return -EINVAL;
1591                 }
1592                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT) {
1593                         fprintf(stderr, "Option 'stripe-size' can't be "
1594                                 "specified with Data-on-MDT component: %llu\n",
1595                                 lsa->lsa_stripe_size);
1596                         return -EINVAL;
1597                 }
1598                 if (lsa->lsa_nr_tgts != 0) {
1599                         fprintf(stderr, "Option 'ost-list' can't be specified "
1600                                 "with Data-on-MDT component: '%i'\n",
1601                                 lsa->lsa_nr_tgts);
1602                         return -EINVAL;
1603                 }
1604                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
1605                         fprintf(stderr, "Option 'stripe-offset' can't be "
1606                                 "specified with Data-on-MDT component: %lld\n",
1607                                 lsa->lsa_stripe_off);
1608                         return -EINVAL;
1609                 }
1610                 if (lsa->lsa_pool_name != 0) {
1611                         fprintf(stderr, "Option 'pool' can't be specified "
1612                                 "with Data-on-MDT component: '%s'\n",
1613                                 lsa->lsa_pool_name);
1614                         return -EINVAL;
1615                 }
1616
1617                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
1618                 if (rc) {
1619                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
1620                                 lsa->lsa_pattern, strerror(errno));
1621                         return rc;
1622                 }
1623                 /* Data-on-MDT component has always single stripe up to end */
1624                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
1625         }
1626
1627         rc = llapi_layout_stripe_size_set(layout, lsa->lsa_stripe_size);
1628         if (rc) {
1629                 fprintf(stderr, "Set stripe size %llu failed: %s\n",
1630                         lsa->lsa_stripe_size, strerror(errno));
1631                 return rc;
1632         }
1633
1634         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
1635         if (rc) {
1636                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
1637                         lsa->lsa_stripe_count, strerror(errno));
1638                 return rc;
1639         }
1640
1641         if (lsa->lsa_pool_name != NULL) {
1642                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
1643                 if (rc) {
1644                         fprintf(stderr, "Set pool name: %s failed. %s\n",
1645                                 lsa->lsa_pool_name, strerror(errno));
1646                         return rc;
1647                 }
1648         } else {
1649                 rc = llapi_layout_pool_name_set(layout, "");
1650                 if (rc) {
1651                         fprintf(stderr, "Clear pool name failed: %s\n",
1652                                 strerror(errno));
1653                         return rc;
1654                 }
1655         }
1656
1657         if (lsa->lsa_nr_tgts > 0) {
1658                 if (lsa->lsa_stripe_count > 0 &&
1659                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
1660                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
1661                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
1662                         fprintf(stderr, "stripe_count(%lld) != nr_osts(%d)\n",
1663                                 lsa->lsa_stripe_count, lsa->lsa_nr_tgts);
1664                         return -EINVAL;
1665                 }
1666                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
1667                         rc = llapi_layout_ost_index_set(layout, i,
1668                                                         lsa->lsa_tgts[i]);
1669                         if (rc)
1670                                 break;
1671                 }
1672         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
1673                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
1674         }
1675         if (rc) {
1676                 fprintf(stderr, "Set ost index %d failed. %s\n",
1677                         i, strerror(errno));
1678                 return rc;
1679         }
1680
1681         return 0;
1682 }
1683
1684 /* In 'lfs setstripe --component-add' mode, we need to fetch the extent
1685  * end of the last component in the existing file, and adjust the
1686  * first extent start of the components to be added accordingly. */
1687 static int adjust_first_extent(char *fname, struct llapi_layout *layout)
1688 {
1689         struct llapi_layout *head;
1690         uint64_t start, end, stripe_size, prev_end = 0;
1691         int rc;
1692
1693         if (layout == NULL) {
1694                 fprintf(stderr,
1695                         "%s setstripe: layout must be specified\n",
1696                         progname);
1697                 return -EINVAL;
1698         }
1699
1700         errno = 0;
1701         head = llapi_layout_get_by_path(fname, 0);
1702         if (head == NULL) {
1703                 fprintf(stderr,
1704                         "%s setstripe: cannot read layout from '%s': %s\n",
1705                         progname, fname, strerror(errno));
1706                 return -EINVAL;
1707         } else if (errno == ENODATA) {
1708                 /* file without LOVEA, this component-add will be turned
1709                  * into a component-create. */
1710                 llapi_layout_free(head);
1711                 return -ENODATA;
1712         } else if (!llapi_layout_is_composite(head)) {
1713                 fprintf(stderr, "%s setstripe: '%s' not a composite file\n",
1714                         progname, fname);
1715                 llapi_layout_free(head);
1716                 return -EINVAL;
1717         }
1718
1719         rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
1720         if (rc) {
1721                 fprintf(stderr, "%s setstripe: cannot get prev extent: %s\n",
1722                         progname, strerror(errno));
1723                 llapi_layout_free(head);
1724                 return rc;
1725         }
1726
1727         llapi_layout_free(head);
1728
1729         /* Make sure we use the first component of the layout to be added. */
1730         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
1731         if (rc < 0) {
1732                 fprintf(stderr,
1733                         "%s setstripe: cannot move component cursor: %s\n",
1734                         progname, strerror(errno));
1735                 return rc;
1736         }
1737
1738         rc = llapi_layout_comp_extent_get(layout, &start, &end);
1739         if (rc) {
1740                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
1741                         progname, strerror(errno));
1742                 return rc;
1743         }
1744
1745         if (start > prev_end || end <= prev_end) {
1746                 fprintf(stderr,
1747                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
1748                         progname, start, end, prev_end);
1749                 return -EINVAL;
1750         }
1751
1752         rc = llapi_layout_stripe_size_get(layout, &stripe_size);
1753         if (rc) {
1754                 fprintf(stderr, "%s setstripe: cannot get stripe size: %s\n",
1755                         progname, strerror(errno));
1756                 return rc;
1757         }
1758
1759         if (stripe_size != LLAPI_LAYOUT_DEFAULT &&
1760             (prev_end & (stripe_size - 1))) {
1761                 fprintf(stderr,
1762                         "%s setstripe: stripe size %lu not aligned with %lu\n",
1763                         progname, stripe_size, prev_end);
1764                 return -EINVAL;
1765         }
1766
1767         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
1768         if (rc) {
1769                 fprintf(stderr,
1770                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
1771                         progname, prev_end, end, strerror(errno));
1772                 return rc;
1773         }
1774
1775         return 0;
1776 }
1777
1778 static inline bool comp_flags_is_neg(__u32 flags)
1779 {
1780         return flags & LCME_FL_NEG;
1781 }
1782
1783 static inline void comp_flags_set_neg(__u32 *flags)
1784 {
1785         *flags |= LCME_FL_NEG;
1786 }
1787
1788 static inline void comp_flags_clear_neg(__u32 *flags)
1789 {
1790         *flags &= ~LCME_FL_NEG;
1791 }
1792
1793 static int comp_str2flags(__u32 *flags, char *string)
1794 {
1795         char *name;
1796         __u32 neg_flags = 0;
1797
1798         if (string == NULL)
1799                 return -EINVAL;
1800
1801         *flags = 0;
1802         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1803                 bool found = false;
1804                 int i;
1805
1806                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1807                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1808                         const char *comp_name = comp_flags_table[i].cfn_name;
1809
1810                         if (strcmp(name, comp_name) == 0) {
1811                                 *flags |= comp_flag;
1812                                 found = true;
1813                         } else if (strncmp(name, "^", 1) == 0 &&
1814                                    strcmp(name + 1, comp_name) == 0) {
1815                                 neg_flags |= comp_flag;
1816                                 found = true;
1817                         }
1818                 }
1819                 if (!found) {
1820                         llapi_printf(LLAPI_MSG_ERROR,
1821                                      "%s: component flag '%s' not supported\n",
1822                                      progname, name);
1823                         return -EINVAL;
1824                 }
1825         }
1826
1827         if (*flags == 0 && neg_flags == 0)
1828                 return -EINVAL;
1829         /* don't support mixed flags for now */
1830         if (*flags && neg_flags)
1831                 return -EINVAL;
1832
1833         if (neg_flags) {
1834                 *flags = neg_flags;
1835                 comp_flags_set_neg(flags);
1836         }
1837
1838         return 0;
1839 }
1840
1841 static inline bool arg_is_eof(char *arg)
1842 {
1843         return !strncmp(arg, "-1", strlen("-1")) ||
1844                !strncmp(arg, "EOF", strlen("EOF")) ||
1845                !strncmp(arg, "eof", strlen("eof"));
1846 }
1847
1848 /**
1849  * lfs_mirror_alloc() - Allocate a mirror argument structure.
1850  *
1851  * Return: Valid mirror_args pointer on success and
1852  *         NULL if memory allocation fails.
1853  */
1854 static struct mirror_args *lfs_mirror_alloc(void)
1855 {
1856         struct mirror_args *mirror = NULL;
1857
1858         while (1) {
1859                 mirror = calloc(1, sizeof(*mirror));
1860                 if (mirror != NULL)
1861                         break;
1862
1863                 sleep(1);
1864         }
1865
1866         return mirror;
1867 }
1868
1869 /**
1870  * lfs_mirror_free() - Free memory allocated for a mirror argument
1871  *                     structure.
1872  * @mirror: Previously allocated mirror argument structure by
1873  *          lfs_mirror_alloc().
1874  *
1875  * Free memory allocated for @mirror.
1876  *
1877  * Return: void.
1878  */
1879 static void lfs_mirror_free(struct mirror_args *mirror)
1880 {
1881         if (mirror->m_layout != NULL)
1882                 llapi_layout_free(mirror->m_layout);
1883         free(mirror);
1884 }
1885
1886 /**
1887  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
1888  * @mirror_list: Previously allocated mirror list.
1889  *
1890  * Free memory allocated for @mirror_list.
1891  *
1892  * Return: void.
1893  */
1894 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
1895 {
1896         struct mirror_args *next_mirror = NULL;
1897
1898         while (mirror_list != NULL) {
1899                 next_mirror = mirror_list->m_next;
1900                 lfs_mirror_free(mirror_list);
1901                 mirror_list = next_mirror;
1902         }
1903 }
1904
1905 enum {
1906         LFS_POOL_OPT = 3,
1907         LFS_COMP_COUNT_OPT,
1908         LFS_COMP_START_OPT,
1909         LFS_COMP_FLAGS_OPT,
1910         LFS_COMP_DEL_OPT,
1911         LFS_COMP_SET_OPT,
1912         LFS_COMP_ADD_OPT,
1913         LFS_COMP_USE_PARENT_OPT,
1914         LFS_COMP_NO_VERIFY_OPT,
1915         LFS_PROJID_OPT,
1916 };
1917
1918 /* functions */
1919 static int lfs_setstripe0(int argc, char **argv, enum setstripe_origin opc)
1920 {
1921         struct lfs_setstripe_args        lsa;
1922         struct llapi_stripe_param       *param = NULL;
1923         struct find_param                migrate_mdt_param = {
1924                 .fp_max_depth = -1,
1925                 .fp_mdt_index = -1,
1926         };
1927         char                            *fname;
1928         int                              result;
1929         int                              result2 = 0;
1930         char                            *end;
1931         int                              c;
1932         int                              delete = 0;
1933         char                            *mdt_idx_arg = NULL;
1934         unsigned long long               size_units = 1;
1935         bool                             migrate_mode = false;
1936         bool                             migration_block = false;
1937         __u64                            migration_flags = 0;
1938         __u32                            osts[LOV_MAX_STRIPE_COUNT] = { 0 };
1939         int                              comp_del = 0, comp_set = 0;
1940         int                              comp_add = 0;
1941         __u32                            comp_id = 0;
1942         struct llapi_layout             *layout = NULL;
1943         struct llapi_layout             **lpp = &layout;
1944         bool                             mirror_mode = false;
1945         bool                             has_m_file = false;
1946         __u32                            mirror_count = 0;
1947         enum mirror_flags                mirror_flags = 0;
1948         struct mirror_args              *mirror_list = NULL;
1949         struct mirror_args              *new_mirror = NULL;
1950         struct mirror_args              *last_mirror = NULL;
1951         char                             cmd[PATH_MAX];
1952
1953         struct option long_opts[] = {
1954                 /* --block is only valid in migrate mode */
1955         { .val = 'b',   .name = "block",        .has_arg = no_argument},
1956         { .val = LFS_COMP_ADD_OPT,
1957                         .name = "comp-add",     .has_arg = no_argument},
1958         { .val = LFS_COMP_ADD_OPT,
1959                         .name = "component-add",
1960                                                 .has_arg = no_argument},
1961         { .val = LFS_COMP_DEL_OPT,
1962                         .name = "comp-del",     .has_arg = no_argument},
1963         { .val = LFS_COMP_DEL_OPT,
1964                         .name = "component-del",
1965                                                 .has_arg = no_argument},
1966         { .val = LFS_COMP_FLAGS_OPT,
1967                         .name = "comp-flags",   .has_arg = required_argument},
1968         { .val = LFS_COMP_FLAGS_OPT,
1969                         .name = "component-flags",
1970                                                 .has_arg = required_argument},
1971         { .val = LFS_COMP_SET_OPT,
1972                         .name = "comp-set",     .has_arg = no_argument},
1973         { .val = LFS_COMP_SET_OPT,
1974                         .name = "component-set",
1975                                                 .has_arg = no_argument},
1976         { .val = LFS_COMP_USE_PARENT_OPT,
1977                         .name = "parent",       .has_arg = no_argument},
1978         { .val = LFS_COMP_NO_VERIFY_OPT,
1979                         .name = "no-verify",    .has_arg = no_argument},
1980         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
1981         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
1982         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
1983         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
1984         { .val = 'E',   .name = "component-end",
1985                                                 .has_arg = required_argument},
1986         { .val = 'f',   .name = "file",         .has_arg = required_argument },
1987         /* dirstripe {"mdt-hash",     required_argument, 0, 'H'}, */
1988         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
1989         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
1990         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
1991         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
1992         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
1993         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
1994         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
1995         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
1996         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
1997         /* --non-block is only valid in migrate mode */
1998         { .val = 'n',   .name = "non-block",    .has_arg = no_argument},
1999         { .val = 'o',   .name = "ost",          .has_arg = required_argument},
2000 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2001         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
2002         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
2003 #endif
2004         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
2005         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
2006         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
2007         /* dirstripe {"mdt-count",    required_argument, 0, 'T'}, */
2008         /* --verbose is only valid in migrate mode */
2009         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
2010         { .name = NULL } };
2011
2012         setstripe_args_init(&lsa);
2013
2014         migrate_mode = (opc == SO_MIGRATE);
2015         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
2016
2017         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
2018         progname = cmd;
2019         while ((c = getopt_long(argc, argv, "bc:dE:f:i:I:m:N::no:p:L:s:S:v",
2020                                 long_opts, NULL)) >= 0) {
2021                 switch (c) {
2022                 case 0:
2023                         /* Long options. */
2024                         break;
2025                 case LFS_COMP_ADD_OPT:
2026                         comp_add = 1;
2027                         break;
2028                 case LFS_COMP_DEL_OPT:
2029                         comp_del = 1;
2030                         break;
2031                 case LFS_COMP_FLAGS_OPT:
2032                         result = comp_str2flags(&lsa.lsa_comp_flags, optarg);
2033                         if (result != 0)
2034                                 goto usage_error;
2035                         break;
2036                 case LFS_COMP_SET_OPT:
2037                         comp_set = 1;
2038                         break;
2039                 case LFS_COMP_USE_PARENT_OPT:
2040                         if (!mirror_mode) {
2041                                 fprintf(stderr, "error: %s: --parent must be "
2042                                         "specified with --mirror-count|-N "
2043                                         "option\n", progname);
2044                                 goto usage_error;
2045                         }
2046                         setstripe_args_init(&lsa);
2047                         break;
2048                 case LFS_COMP_NO_VERIFY_OPT:
2049                         mirror_flags |= NO_VERIFY;
2050                         break;
2051                 case 'b':
2052                         if (!migrate_mode) {
2053                                 fprintf(stderr,
2054                                         "%s %s: -b|--block valid only for migrate command\n",
2055                                         progname, argv[0]);
2056                                 goto usage_error;
2057                         }
2058                         migration_block = true;
2059                         break;
2060                 case 'c':
2061                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
2062                         if (*end != '\0') {
2063                                 fprintf(stderr,
2064                                         "%s %s: invalid stripe count '%s'\n",
2065                                         progname, argv[0], optarg);
2066                                 goto usage_error;
2067                         }
2068
2069                         if (lsa.lsa_stripe_count == -1)
2070                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
2071                         break;
2072                 case 'd':
2073                         /* delete the default striping pattern */
2074                         delete = 1;
2075                         break;
2076                 case 'E':
2077                         if (lsa.lsa_comp_end != 0) {
2078                                 result = comp_args_to_layout(lpp, &lsa);
2079                                 if (result) {
2080                                         fprintf(stderr,
2081                                                 "%s %s: invalid layout\n",
2082                                                 progname, argv[0]);
2083                                         goto usage_error;
2084                                 }
2085
2086                                 setstripe_args_init_inherit(&lsa);
2087                         }
2088
2089                         if (arg_is_eof(optarg)) {
2090                                 lsa.lsa_comp_end = LUSTRE_EOF;
2091                         } else {
2092                                 result = llapi_parse_size(optarg,
2093                                                         &lsa.lsa_comp_end,
2094                                                         &size_units, 0);
2095                                 if (result) {
2096                                         fprintf(stderr,
2097                                                 "%s %s: invalid component end '%s'\n",
2098                                                 progname, argv[0], optarg);
2099                                         goto usage_error;
2100                                 }
2101                         }
2102                         break;
2103                 case 'i':
2104                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
2105                         if (*end != '\0') {
2106                                 fprintf(stderr,
2107                                         "%s %s: invalid stripe offset '%s'\n",
2108                                         progname, argv[0], optarg);
2109                                 goto usage_error;
2110                         }
2111                         if (lsa.lsa_stripe_off == -1)
2112                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2113                         break;
2114                 case 'I':
2115                         comp_id = strtoul(optarg, &end, 0);
2116                         if (*end != '\0' || comp_id == 0 ||
2117                             comp_id > LCME_ID_MAX) {
2118                                 fprintf(stderr,
2119                                         "%s %s: invalid component ID '%s'\n",
2120                                         progname, argv[0], optarg);
2121                                 goto usage_error;
2122                         }
2123                         break;
2124                 case 'f':
2125                         if (opc != SO_MIRROR_EXTEND) {
2126                                 fprintf(stderr,
2127                                         "error: %s: invalid option: %s\n",
2128                                         progname, argv[optopt + 1]);
2129                                 goto usage_error;
2130                         }
2131                         if (last_mirror == NULL) {
2132                                 fprintf(stderr, "error: %s: '-N' must exist "
2133                                         "in front of '%s'\n",
2134                                         progname, argv[optopt + 1]);
2135                                 goto usage_error;
2136                         }
2137
2138                         last_mirror->m_file = optarg;
2139                         last_mirror->m_count = 1;
2140                         has_m_file = true;
2141                         break;
2142                 case 'L':
2143                         if (strcmp(argv[optind - 1], "mdt") == 0) {
2144                                 /* Can be only the first component */
2145                                 if (layout != NULL) {
2146                                         result = -EINVAL;
2147                                         fprintf(stderr, "error: 'mdt' layout "
2148                                                 "can be only the first one\n");
2149                                         goto error;
2150                                 }
2151                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
2152                                         result = -EFBIG;
2153                                         fprintf(stderr, "error: 'mdt' layout "
2154                                                 "size is too big\n");
2155                                         goto error;
2156                                 }
2157                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
2158                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
2159                                 result = -EINVAL;
2160                                 fprintf(stderr, "error: layout '%s' is "
2161                                         "unknown, supported layouts are: "
2162                                         "'mdt', 'raid0'\n", argv[optind]);
2163                                 goto error;
2164                         }
2165                         break;
2166                 case 'm':
2167                         if (!migrate_mode) {
2168                                 fprintf(stderr,
2169                                         "%s %s: -m|--mdt-index valid only for migrate command\n",
2170                                         progname, argv[0]);
2171                                 goto usage_error;
2172                         }
2173                         mdt_idx_arg = optarg;
2174                         break;
2175                 case 'n':
2176                         if (!migrate_mode) {
2177                                 fprintf(stderr,
2178                                         "%s %s: -n|--non-block valid only for migrate command\n",
2179                                         progname, argv[0]);
2180                                 goto usage_error;
2181                         }
2182                         migration_flags |= MIGRATION_NONBLOCK;
2183                         break;
2184                 case 'N':
2185                         if (opc == SO_SETSTRIPE) {
2186                                 opc = SO_MIRROR_CREATE;
2187                                 mirror_mode = true;
2188                         }
2189                         mirror_count = 1;
2190                         if (optarg != NULL) {
2191                                 mirror_count = strtoul(optarg, &end, 0);
2192                                 if (*end != '\0' || mirror_count == 0) {
2193                                         fprintf(stderr,
2194                                                 "error: %s: bad mirror count: %s\n",
2195                                                 progname, optarg);
2196                                         result = -EINVAL;
2197                                         goto error;
2198                                 }
2199                         }
2200
2201                         new_mirror = lfs_mirror_alloc();
2202                         new_mirror->m_count = mirror_count;
2203
2204                         if (mirror_list == NULL)
2205                                 mirror_list = new_mirror;
2206
2207                         if (last_mirror != NULL) {
2208                                 /* wrap up last mirror */
2209                                 if (lsa.lsa_comp_end == 0)
2210                                         lsa.lsa_comp_end = LUSTRE_EOF;
2211
2212                                 result = comp_args_to_layout(lpp, &lsa);
2213                                 if (result) {
2214                                         lfs_mirror_free(new_mirror);
2215                                         goto error;
2216                                 }
2217
2218                                 setstripe_args_init_inherit(&lsa);
2219
2220                                 last_mirror->m_next = new_mirror;
2221                         }
2222
2223                         last_mirror = new_mirror;
2224                         lpp = &last_mirror->m_layout;
2225                         break;
2226                 case 'o':
2227                         lsa.lsa_nr_tgts = parse_targets(osts,
2228                                                 sizeof(osts) / sizeof(__u32),
2229                                                 lsa.lsa_nr_tgts, optarg);
2230                         if (lsa.lsa_nr_tgts < 0) {
2231                                 fprintf(stderr,
2232                                         "%s %s: invalid OST target(s) '%s'\n",
2233                                         progname, argv[0], optarg);
2234                                 goto usage_error;
2235                         }
2236
2237                         lsa.lsa_tgts = osts;
2238                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
2239                                 lsa.lsa_stripe_off = osts[0];
2240                         break;
2241                 case 'p':
2242                         if (optarg == NULL)
2243                                 goto usage_error;
2244                         lsa.lsa_pool_name = optarg;
2245                         break;
2246                 case 'S':
2247                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
2248                                                   &size_units, 0);
2249                         if (result) {
2250                                 fprintf(stderr,
2251                                         "%s %s: invalid stripe size '%s'\n",
2252                                         progname, argv[0], optarg);
2253                                 goto usage_error;
2254                         }
2255                         break;
2256                 case 'v':
2257                         if (!migrate_mode) {
2258                                 fprintf(stderr,
2259                                         "%s %s: -v|--verbose valid only for migrate command\n",
2260                                         progname, argv[0]);
2261                                 goto usage_error;
2262                         }
2263                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
2264                         break;
2265                 default:
2266                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
2267                                 progname, argv[0], argv[optind - 1]);
2268                         goto usage_error;
2269                 }
2270         }
2271
2272         fname = argv[optind];
2273
2274         if (optind == argc) {
2275                 fprintf(stderr, "%s %s: FILE must be specified\n",
2276                         progname, argv[0]);
2277                 goto usage_error;
2278         }
2279
2280         if (mirror_mode && mirror_count == 0) {
2281                 fprintf(stderr,
2282                         "error: %s: --mirror-count|-N option is required\n",
2283                         progname);
2284                 result = -EINVAL;
2285                 goto error;
2286         }
2287
2288         if (mirror_mode) {
2289                 if (lsa.lsa_comp_end == 0)
2290                         lsa.lsa_comp_end = LUSTRE_EOF;
2291         }
2292
2293         if (lsa.lsa_comp_end != 0) {
2294                 result = comp_args_to_layout(lpp, &lsa);
2295                 if (result)
2296                         goto error;
2297         }
2298
2299         if (mirror_flags & NO_VERIFY) {
2300                 if (opc != SO_MIRROR_EXTEND) {
2301                         fprintf(stderr,
2302                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
2303                                 progname);
2304                         result = -EINVAL;
2305                         goto error;
2306                 } else if (!has_m_file) {
2307                         fprintf(stderr,
2308                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
2309                                 progname);
2310                         result = -EINVAL;
2311                         goto error;
2312                 }
2313         }
2314
2315         /* Only LCME_FL_INIT flags is used in PFL, and it shouldn't be
2316          * altered by user space tool, so we don't need to support the
2317          * --component-set for this moment. */
2318         if (comp_set != 0) {
2319                 fprintf(stderr, "%s %s: --component-set not supported\n",
2320                         progname, argv[0]);
2321                 goto usage_error;
2322         }
2323
2324         if ((delete + comp_set + comp_del + comp_add) > 1) {
2325                 fprintf(stderr,
2326                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
2327                         progname, argv[0]);
2328                 goto usage_error;
2329         }
2330
2331         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
2332                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
2333                 fprintf(stderr,
2334                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
2335                         progname, argv[0]);
2336                 goto usage_error;
2337         }
2338
2339         if ((comp_set || comp_del) &&
2340             (setstripe_args_specified(&lsa) || layout != NULL)) {
2341                 fprintf(stderr,
2342                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
2343                         progname, argv[0]);
2344                 goto usage_error;
2345         }
2346
2347         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
2348                 fprintf(stderr,
2349                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
2350                         progname, argv[0]);
2351                 goto usage_error;
2352         }
2353
2354         if (comp_add || comp_del) {
2355                 struct stat st;
2356
2357                 result = lstat(fname, &st);
2358                 if (result == 0 && S_ISDIR(st.st_mode)) {
2359                         fprintf(stderr,
2360                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
2361                                 progname);
2362                         goto usage_error;
2363                 }
2364
2365                 if (mirror_mode) {
2366                         fprintf(stderr, "error: %s: can't use --component-add "
2367                                 "or --component-del for mirror operation\n",
2368                                 progname);
2369                         goto usage_error;
2370                 }
2371         }
2372
2373         if (comp_add) {
2374                 if (layout == NULL) {
2375                         fprintf(stderr,
2376                                 "%s %s: option -E must be specified with --component-add\n",
2377                                 progname, argv[0]);
2378                         goto usage_error;
2379                 }
2380
2381                 result = adjust_first_extent(fname, layout);
2382                 if (result == -ENODATA)
2383                         comp_add = 0;
2384                 else if (result != 0)
2385                         goto error;
2386         }
2387
2388         if (mdt_idx_arg != NULL && optind > 3) {
2389                 fprintf(stderr,
2390                         "%s %s: option -m cannot be used with other options\n",
2391                         progname, argv[0]);
2392                 goto usage_error;
2393         }
2394
2395         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
2396                 fprintf(stderr,
2397                         "%s %s: options --non-block and --block are mutually exclusive\n",
2398                         progname, argv[0]);
2399                 goto usage_error;
2400         }
2401
2402         if (!comp_del && !comp_set && comp_id != 0) {
2403                 fprintf(stderr,
2404                         "%s %s: option -I can only be used with --component-del\n",
2405                         progname, argv[0]);
2406                 goto usage_error;
2407         }
2408
2409         if (mdt_idx_arg != NULL) {
2410                 /* initialize migrate mdt parameters */
2411                 migrate_mdt_param.fp_mdt_index = strtoul(mdt_idx_arg, &end, 0);
2412                 if (*end != '\0') {
2413                         fprintf(stderr, "%s %s: invalid MDT index '%s'\n",
2414                                 progname, argv[0], mdt_idx_arg);
2415                         goto usage_error;
2416                 }
2417                 migrate_mdt_param.fp_migrate = 1;
2418         } else if (layout == NULL) {
2419                 /* initialize stripe parameters */
2420                 param = calloc(1, offsetof(typeof(*param),
2421                                lsp_osts[lsa.lsa_nr_tgts]));
2422                 if (param == NULL) {
2423                         fprintf(stderr,
2424                                 "%s %s: cannot allocate memory for parameters: %s\n",
2425                                 progname, argv[0], strerror(ENOMEM));
2426                         result = -ENOMEM;
2427                         goto error;
2428                 }
2429
2430                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
2431                         param->lsp_stripe_size = lsa.lsa_stripe_size;
2432                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2433                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
2434                                 param->lsp_stripe_count = -1;
2435                         else
2436                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
2437                 }
2438                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
2439                         param->lsp_stripe_offset = -1;
2440                 else
2441                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
2442                 param->lsp_pool = lsa.lsa_pool_name;
2443                 param->lsp_is_specific = false;
2444                 if (lsa.lsa_nr_tgts > 0) {
2445                         if (lsa.lsa_stripe_count > 0 &&
2446                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2447                             lsa.lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2448                             lsa.lsa_nr_tgts != lsa.lsa_stripe_count) {
2449                                 fprintf(stderr, "error: %s: stripe count %lld "
2450                                         "doesn't match the number of OSTs: %d\n"
2451                                         , argv[0], lsa.lsa_stripe_count,
2452                                         lsa.lsa_nr_tgts);
2453                                 free(param);
2454                                 goto usage_error;
2455                         }
2456
2457                         param->lsp_is_specific = true;
2458                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
2459                         memcpy(param->lsp_osts, osts,
2460                                sizeof(*osts) * lsa.lsa_nr_tgts);
2461                 }
2462         }
2463
2464         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
2465                 if (mdt_idx_arg != NULL) {
2466                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
2467                 } else if (migrate_mode) {
2468                         result = lfs_migrate(fname, migration_flags, param,
2469                                              layout);
2470                 } else if (comp_set != 0) {
2471                         result = lfs_component_set(fname, comp_id,
2472                                                    lsa.lsa_comp_flags);
2473                 } else if (comp_del != 0) {
2474                         result = lfs_component_del(fname, comp_id,
2475                                                    lsa.lsa_comp_flags);
2476                 } else if (comp_add != 0) {
2477                         result = lfs_component_add(fname, layout);
2478                 } else if (opc == SO_MIRROR_CREATE) {
2479                         result = mirror_create(fname, mirror_list);
2480                 } else if (opc == SO_MIRROR_EXTEND) {
2481                         result = mirror_extend(fname, mirror_list,
2482                                                mirror_flags);
2483                 } else if (layout != NULL) {
2484                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
2485                                                       0644, layout);
2486                         if (result >= 0) {
2487                                 close(result);
2488                                 result = 0;
2489                         }
2490                 } else {
2491                         result = llapi_file_open_param(fname,
2492                                                        O_CREAT | O_WRONLY,
2493                                                        0644, param);
2494                         if (result >= 0) {
2495                                 close(result);
2496                                 result = 0;
2497                         }
2498                 }
2499                 if (result) {
2500                         /* Save the first error encountered. */
2501                         if (result2 == 0)
2502                                 result2 = result;
2503                         continue;
2504                 }
2505         }
2506
2507         free(param);
2508         llapi_layout_free(layout);
2509         lfs_mirror_list_free(mirror_list);
2510         return result2;
2511 usage_error:
2512         result = CMD_HELP;
2513 error:
2514         llapi_layout_free(layout);
2515         lfs_mirror_list_free(mirror_list);
2516         return result;
2517 }
2518
2519 static int lfs_poollist(int argc, char **argv)
2520 {
2521         if (argc != 2)
2522                 return CMD_HELP;
2523
2524         return llapi_poollist(argv[1]);
2525 }
2526
2527 static int set_time(time_t *time, time_t *set, char *str)
2528 {
2529         time_t t;
2530         int res = 0;
2531
2532         if (str[0] == '+')
2533                 res = 1;
2534         else if (str[0] == '-')
2535                 res = -1;
2536
2537         if (res)
2538                 str++;
2539
2540         t = strtol(str, NULL, 0);
2541         if (*time < t * 24 * 60 * 60) {
2542                 if (res)
2543                         str--;
2544                 fprintf(stderr, "Wrong time '%s' is specified.\n", str);
2545                 return INT_MAX;
2546         }
2547
2548         *set = *time - t * 24 * 60 * 60;
2549         return res;
2550 }
2551 static int name2uid(unsigned int *id, const char *name)
2552 {
2553         struct passwd *passwd;
2554
2555         passwd = getpwnam(name);
2556         if (passwd == NULL)
2557                 return -ENOENT;
2558         *id = passwd->pw_uid;
2559
2560         return 0;
2561 }
2562
2563 static int name2gid(unsigned int *id, const char *name)
2564 {
2565         struct group *group;
2566
2567         group = getgrnam(name);
2568         if (group == NULL)
2569                 return -ENOENT;
2570         *id = group->gr_gid;
2571
2572         return 0;
2573 }
2574
2575 static inline int name2projid(unsigned int *id, const char *name)
2576 {
2577         return -ENOTSUP;
2578 }
2579
2580 static int uid2name(char **name, unsigned int id)
2581 {
2582         struct passwd *passwd;
2583
2584         passwd = getpwuid(id);
2585         if (passwd == NULL)
2586                 return -ENOENT;
2587         *name = passwd->pw_name;
2588
2589         return 0;
2590 }
2591
2592 static inline int gid2name(char **name, unsigned int id)
2593 {
2594         struct group *group;
2595
2596         group = getgrgid(id);
2597         if (group == NULL)
2598                 return -ENOENT;
2599         *name = group->gr_name;
2600
2601         return 0;
2602 }
2603
2604 static int name2layout(__u32 *layout, char *name)
2605 {
2606         char *ptr, *layout_name;
2607
2608         *layout = 0;
2609         for (ptr = name; ; ptr = NULL) {
2610                 layout_name = strtok(ptr, ",");
2611                 if (layout_name == NULL)
2612                         break;
2613                 if (strcmp(layout_name, "released") == 0)
2614                         *layout |= LOV_PATTERN_F_RELEASED;
2615                 else if (strcmp(layout_name, "raid0") == 0)
2616                         *layout |= LOV_PATTERN_RAID0;
2617                 else if (strcmp(layout_name, "mdt") == 0)
2618                         *layout |= LOV_PATTERN_MDT;
2619                 else
2620                         return -1;
2621         }
2622         return 0;
2623 }
2624
2625 static int lfs_find(int argc, char **argv)
2626 {
2627         int c, rc;
2628         int ret = 0;
2629         time_t t;
2630         struct find_param param = {
2631                 .fp_max_depth = -1,
2632                 .fp_quiet = 1,
2633         };
2634         struct option long_opts[] = {
2635         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
2636         { .val = LFS_COMP_COUNT_OPT,
2637                         .name = "comp-count",   .has_arg = required_argument },
2638         { .val = LFS_COMP_COUNT_OPT,
2639                         .name = "component-count",
2640                                                 .has_arg = required_argument },
2641         { .val = LFS_COMP_FLAGS_OPT,
2642                         .name = "comp-flags",   .has_arg = required_argument },
2643         { .val = LFS_COMP_FLAGS_OPT,
2644                         .name = "component-flags",
2645                                                 .has_arg = required_argument },
2646         { .val = LFS_COMP_START_OPT,
2647                         .name = "comp-start",   .has_arg = required_argument },
2648         { .val = LFS_COMP_START_OPT,
2649                         .name = "component-start",
2650                                                 .has_arg = required_argument },
2651         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
2652         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
2653         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
2654         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
2655         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
2656         { .val = 'E',   .name = "component-end",
2657                                                 .has_arg = required_argument },
2658         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
2659         { .val = 'G',   .name = "group",        .has_arg = required_argument },
2660         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
2661         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
2662         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
2663         /*{"component-id", required_argument, 0, 'I'},*/
2664         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
2665         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
2666         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
2667         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
2668         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
2669         { .val = 'n',   .name = "name",         .has_arg = required_argument },
2670      /* reserve {"or",           no_argument,     , 0, 'o'}, to match find(1) */
2671         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
2672         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
2673         /* no short option for pool, p/P already used */
2674         { .val = LFS_POOL_OPT,
2675                         .name = "pool",         .has_arg = required_argument },
2676         { .val = 'p',   .name = "print0",       .has_arg = no_argument },
2677         { .val = 'P',   .name = "print",        .has_arg = no_argument },
2678         { .val = LFS_PROJID_OPT,
2679                         .name = "projid",       .has_arg = required_argument },
2680         { .val = 's',   .name = "size",         .has_arg = required_argument },
2681         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
2682         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
2683         { .val = 't',   .name = "type",         .has_arg = required_argument },
2684         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
2685         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
2686         { .val = 'U',   .name = "user",         .has_arg = required_argument },
2687         { .name = NULL } };
2688         int pathstart = -1;
2689         int pathend = -1;
2690         int neg_opt = 0;
2691         time_t *xtime;
2692         int *xsign;
2693         int isoption;
2694         char *endptr;
2695
2696         time(&t);
2697
2698         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
2699         while ((c = getopt_long_only(argc, argv,
2700                         "-A:c:C:D:E:g:G:H:i:L:m:M:n:O:Ppqrs:S:t:T:u:U:v",
2701                         long_opts, NULL)) >= 0) {
2702                 xtime = NULL;
2703                 xsign = NULL;
2704                 if (neg_opt)
2705                         --neg_opt;
2706                 /* '!' is part of option */
2707                 /* when getopt_long_only() finds a string which is not
2708                  * an option nor a known option argument it returns 1
2709                  * in that case if we already have found pathstart and pathend
2710                  * (i.e. we have the list of pathnames),
2711                  * the only supported value is "!"
2712                  */
2713                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
2714                 if (!isoption && pathend != -1) {
2715                         fprintf(stderr, "err: %s: filename|dirname must either "
2716                                         "precede options or follow options\n",
2717                                         argv[0]);
2718                         ret = CMD_HELP;
2719                         goto err;
2720                 }
2721                 if (!isoption && pathstart == -1)
2722                         pathstart = optind - 1;
2723                 if (isoption && pathstart != -1 && pathend == -1)
2724                         pathend = optind - 2;
2725                 switch (c) {
2726                 case 0:
2727                         /* Long options. */
2728                         break;
2729                 case 1:
2730                         /* unknown; opt is "!" or path component,
2731                          * checking done above.
2732                          */
2733                         if (strcmp(optarg, "!") == 0)
2734                                 neg_opt = 2;
2735                         break;
2736                 case 'A':
2737                         xtime = &param.fp_atime;
2738                         xsign = &param.fp_asign;
2739                         param.fp_exclude_atime = !!neg_opt;
2740                         /* no break, this falls through to 'C' for ctime */
2741                 case 'C':
2742                         if (c == 'C') {
2743                                 xtime = &param.fp_ctime;
2744                                 xsign = &param.fp_csign;
2745                                 param.fp_exclude_ctime = !!neg_opt;
2746                         }
2747                         /* no break, this falls through to 'M' for mtime */
2748                 case 'M':
2749                         if (c == 'M') {
2750                                 xtime = &param.fp_mtime;
2751                                 xsign = &param.fp_msign;
2752                                 param.fp_exclude_mtime = !!neg_opt;
2753                         }
2754                         rc = set_time(&t, xtime, optarg);
2755                         if (rc == INT_MAX) {
2756                                 ret = -1;
2757                                 goto err;
2758                         }
2759                         if (rc)
2760                                 *xsign = rc;
2761                         break;
2762                 case LFS_COMP_COUNT_OPT:
2763                         if (optarg[0] == '+') {
2764                                 param.fp_comp_count_sign = -1;
2765                                 optarg++;
2766                         } else if (optarg[0] == '-') {
2767                                 param.fp_comp_count_sign =  1;
2768                                 optarg++;
2769                         }
2770
2771                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
2772                         if (*endptr != '\0') {
2773                                 fprintf(stderr, "error: bad component count "
2774                                         "'%s'\n", optarg);
2775                                 goto err;
2776                         }
2777                         param.fp_check_comp_count = 1;
2778                         param.fp_exclude_comp_count = !!neg_opt;
2779                         break;
2780                 case LFS_COMP_FLAGS_OPT:
2781                         rc = comp_str2flags(&param.fp_comp_flags, optarg);
2782                         if (rc || comp_flags_is_neg(param.fp_comp_flags)) {
2783                                 fprintf(stderr, "error: bad component flags "
2784                                         "'%s'\n", optarg);
2785                                 goto err;
2786                         }
2787                         param.fp_check_comp_flags = 1;
2788                         param.fp_exclude_comp_flags = !!neg_opt;
2789                         break;
2790                 case LFS_COMP_START_OPT:
2791                         if (optarg[0] == '+') {
2792                                 param.fp_comp_start_sign = -1;
2793                                 optarg++;
2794                         } else if (optarg[0] == '-') {
2795                                 param.fp_comp_start_sign =  1;
2796                                 optarg++;
2797                         }
2798
2799                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
2800                                               &param.fp_comp_start_units, 0);
2801                         if (rc) {
2802                                 fprintf(stderr, "error: bad component start "
2803                                         "'%s'\n", optarg);
2804                                 goto err;
2805                         }
2806                         param.fp_check_comp_start = 1;
2807                         param.fp_exclude_comp_start = !!neg_opt;
2808                         break;
2809                 case 'c':
2810                         if (optarg[0] == '+') {
2811                                 param.fp_stripe_count_sign = -1;
2812                                 optarg++;
2813                         } else if (optarg[0] == '-') {
2814                                 param.fp_stripe_count_sign =  1;
2815                                 optarg++;
2816                         }
2817
2818                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
2819                         if (*endptr != '\0') {
2820                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
2821                                         optarg);
2822                                 ret = -1;
2823                                 goto err;
2824                         }
2825                         param.fp_check_stripe_count = 1;
2826                         param.fp_exclude_stripe_count = !!neg_opt;
2827                         break;
2828                 case 'D':
2829                         param.fp_max_depth = strtol(optarg, 0, 0);
2830                         break;
2831                 case 'E':
2832                         if (optarg[0] == '+') {
2833                                 param.fp_comp_end_sign = -1;
2834                                 optarg++;
2835                         } else if (optarg[0] == '-') {
2836                                 param.fp_comp_end_sign =  1;
2837                                 optarg++;
2838                         }
2839
2840                         if (arg_is_eof(optarg)) {
2841                                 param.fp_comp_end = LUSTRE_EOF;
2842                                 param.fp_comp_end_units = 1;
2843                                 rc = 0;
2844                         } else {
2845                                 rc = llapi_parse_size(optarg,
2846                                                 &param.fp_comp_end,
2847                                                 &param.fp_comp_end_units, 0);
2848                         }
2849                         if (rc) {
2850                                 fprintf(stderr, "error: bad component end "
2851                                         "'%s'\n", optarg);
2852                                 goto err;
2853                         }
2854                         param.fp_check_comp_end = 1;
2855                         param.fp_exclude_comp_end = !!neg_opt;
2856                         break;
2857                 case 'g':
2858                 case 'G':
2859                         rc = name2gid(&param.fp_gid, optarg);
2860                         if (rc) {
2861                                 param.fp_gid = strtoul(optarg, &endptr, 10);
2862                                 if (*endptr != '\0') {
2863                                         fprintf(stderr, "Group/GID: %s cannot "
2864                                                 "be found.\n", optarg);
2865                                         ret = -1;
2866                                         goto err;
2867                                 }
2868                         }
2869                         param.fp_exclude_gid = !!neg_opt;
2870                         param.fp_check_gid = 1;
2871                         break;
2872                 case 'H':
2873                         param.fp_hash_type = check_hashtype(optarg);
2874                         if (param.fp_hash_type == 0) {
2875                                 fprintf(stderr, "error: bad hash_type '%s'\n",
2876                                         optarg);
2877                                 ret = -1;
2878                                 goto err;
2879                         }
2880                         param.fp_check_hash_type = 1;
2881                         param.fp_exclude_hash_type = !!neg_opt;
2882                         break;
2883                 case 'L':
2884                         ret = name2layout(&param.fp_layout, optarg);
2885                         if (ret)
2886                                 goto err;
2887                         param.fp_exclude_layout = !!neg_opt;
2888                         param.fp_check_layout = 1;
2889                         break;
2890                 case 'u':
2891                 case 'U':
2892                         rc = name2uid(&param.fp_uid, optarg);
2893                         if (rc) {
2894                                 param.fp_uid = strtoul(optarg, &endptr, 10);
2895                                 if (*endptr != '\0') {
2896                                         fprintf(stderr, "User/UID: %s cannot "
2897                                                 "be found.\n", optarg);
2898                                         ret = -1;
2899                                         goto err;
2900                                 }
2901                         }
2902                         param.fp_exclude_uid = !!neg_opt;
2903                         param.fp_check_uid = 1;
2904                         break;
2905                 case LFS_POOL_OPT:
2906                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
2907                                 fprintf(stderr,
2908                                         "Pool name %s is too long"
2909                                         " (max is %d)\n", optarg,
2910                                         LOV_MAXPOOLNAME);
2911                                 ret = -1;
2912                                 goto err;
2913                         }
2914                         /* we do check for empty pool because empty pool
2915                          * is used to find V1 lov attributes */
2916                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
2917                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
2918                         param.fp_exclude_pool = !!neg_opt;
2919                         param.fp_check_pool = 1;
2920                         break;
2921                 case 'n':
2922                         param.fp_pattern = (char *)optarg;
2923                         param.fp_exclude_pattern = !!neg_opt;
2924                         break;
2925                 case 'm':
2926                 case 'i':
2927                 case 'O': {
2928                         char *buf, *token, *next, *p;
2929                         int len = 1;
2930                         void *tmp;
2931
2932                         buf = strdup(optarg);
2933                         if (buf == NULL) {
2934                                 ret = -ENOMEM;
2935                                 goto err;
2936                         }
2937
2938                         param.fp_exclude_obd = !!neg_opt;
2939
2940                         token = buf;
2941                         while (token && *token) {
2942                                 token = strchr(token, ',');
2943                                 if (token) {
2944                                         len++;
2945                                         token++;
2946                                 }
2947                         }
2948                         if (c == 'm') {
2949                                 param.fp_exclude_mdt = !!neg_opt;
2950                                 param.fp_num_alloc_mdts += len;
2951                                 tmp = realloc(param.fp_mdt_uuid,
2952                                               param.fp_num_alloc_mdts *
2953                                               sizeof(*param.fp_mdt_uuid));
2954                                 if (tmp == NULL) {
2955                                         ret = -ENOMEM;
2956                                         goto err_free;
2957                                 }
2958
2959                                 param.fp_mdt_uuid = tmp;
2960                         } else {
2961                                 param.fp_exclude_obd = !!neg_opt;
2962                                 param.fp_num_alloc_obds += len;
2963                                 tmp = realloc(param.fp_obd_uuid,
2964                                               param.fp_num_alloc_obds *
2965                                               sizeof(*param.fp_obd_uuid));
2966                                 if (tmp == NULL) {
2967                                         ret = -ENOMEM;
2968                                         goto err_free;
2969                                 }
2970
2971                                 param.fp_obd_uuid = tmp;
2972                         }
2973                         for (token = buf; token && *token; token = next) {
2974                                 struct obd_uuid *puuid;
2975                                 if (c == 'm') {
2976                                         puuid =
2977                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
2978                                 } else {
2979                                         puuid =
2980                                         &param.fp_obd_uuid[param.fp_num_obds++];
2981                                 }
2982                                 p = strchr(token, ',');
2983                                 next = 0;
2984                                 if (p) {
2985                                         *p = 0;
2986                                         next = p+1;
2987                                 }
2988
2989                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
2990                                         ret = -E2BIG;
2991                                         goto err_free;
2992                                 }
2993
2994                                 strncpy(puuid->uuid, token,
2995                                         sizeof(puuid->uuid));
2996                         }
2997 err_free:
2998                         if (buf)
2999                                 free(buf);
3000                         break;
3001                 }
3002                 case 'p':
3003                         param.fp_zero_end = 1;
3004                         break;
3005                 case 'P':
3006                         break;
3007                 case LFS_PROJID_OPT:
3008                         rc = name2projid(&param.fp_projid, optarg);
3009                         if (rc) {
3010                                 param.fp_projid = strtoul(optarg, &endptr, 10);
3011                                 if (*endptr != '\0') {
3012                                         fprintf(stderr,
3013                                                 "Invalid project ID: %s",
3014                                                 optarg);
3015                                         ret = -1;
3016                                         goto err;
3017                                 }
3018                         }
3019                         param.fp_exclude_projid = !!neg_opt;
3020                         param.fp_check_projid = 1;
3021                         break;
3022                 case 's':
3023                         if (optarg[0] == '+') {
3024                                 param.fp_size_sign = -1;
3025                                 optarg++;
3026                         } else if (optarg[0] == '-') {
3027                                 param.fp_size_sign =  1;
3028                                 optarg++;
3029                         }
3030
3031                         ret = llapi_parse_size(optarg, &param.fp_size,
3032                                                &param.fp_size_units, 0);
3033                         if (ret) {
3034                                 fprintf(stderr, "error: bad file size '%s'\n",
3035                                         optarg);
3036                                 goto err;
3037                         }
3038                         param.fp_check_size = 1;
3039                         param.fp_exclude_size = !!neg_opt;
3040                         break;
3041                 case 'S':
3042                         if (optarg[0] == '+') {
3043                                 param.fp_stripe_size_sign = -1;
3044                                 optarg++;
3045                         } else if (optarg[0] == '-') {
3046                                 param.fp_stripe_size_sign =  1;
3047                                 optarg++;
3048                         }
3049
3050                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
3051                                                &param.fp_stripe_size_units, 0);
3052                         if (ret) {
3053                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
3054                                         optarg);
3055                                 goto err;
3056                         }
3057                         param.fp_check_stripe_size = 1;
3058                         param.fp_exclude_stripe_size = !!neg_opt;
3059                         break;
3060                 case 't':
3061                         param.fp_exclude_type = !!neg_opt;
3062                         switch (optarg[0]) {
3063                         case 'b':
3064                                 param.fp_type = S_IFBLK;
3065                                 break;
3066                         case 'c':
3067                                 param.fp_type = S_IFCHR;
3068                                 break;
3069                         case 'd':
3070                                 param.fp_type = S_IFDIR;
3071                                 break;
3072                         case 'f':
3073                                 param.fp_type = S_IFREG;
3074                                 break;
3075                         case 'l':
3076                                 param.fp_type = S_IFLNK;
3077                                 break;
3078                         case 'p':
3079                                 param.fp_type = S_IFIFO;
3080                                 break;
3081                         case 's':
3082                                 param.fp_type = S_IFSOCK;
3083                                 break;
3084                         default:
3085                                 fprintf(stderr, "error: %s: bad type '%s'\n",
3086                                         argv[0], optarg);
3087                                 ret = CMD_HELP;
3088                                 goto err;
3089                         };
3090                         break;
3091                 case 'T':
3092                         if (optarg[0] == '+') {
3093                                 param.fp_mdt_count_sign = -1;
3094                                 optarg++;
3095                         } else if (optarg[0] == '-') {
3096                                 param.fp_mdt_count_sign =  1;
3097                                 optarg++;
3098                         }
3099
3100                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
3101                         if (*endptr != '\0') {
3102                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
3103                                         optarg);
3104                                 ret = -1;
3105                                 goto err;
3106                         }
3107                         param.fp_check_mdt_count = 1;
3108                         param.fp_exclude_mdt_count = !!neg_opt;
3109                         break;
3110                 default:
3111                         ret = CMD_HELP;
3112                         goto err;
3113                 };
3114         }
3115
3116         if (pathstart == -1) {
3117                 fprintf(stderr, "error: %s: no filename|pathname\n",
3118                         argv[0]);
3119                 ret = CMD_HELP;
3120                 goto err;
3121         } else if (pathend == -1) {
3122                 /* no options */
3123                 pathend = argc;
3124         }
3125
3126         do {
3127                 rc = llapi_find(argv[pathstart], &param);
3128                 if (rc != 0 && ret == 0)
3129                         ret = rc;
3130         } while (++pathstart < pathend);
3131
3132         if (ret)
3133                 fprintf(stderr, "error: %s failed for %s.\n",
3134                         argv[0], argv[optind - 1]);
3135 err:
3136         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
3137                 free(param.fp_obd_uuid);
3138
3139         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
3140                 free(param.fp_mdt_uuid);
3141
3142         return ret;
3143 }
3144
3145 static int lfs_getstripe_internal(int argc, char **argv,
3146                                   struct find_param *param)
3147 {
3148         struct option long_opts[] = {
3149         { .val = LFS_COMP_COUNT_OPT,
3150                         .name = "comp-count",   .has_arg = no_argument },
3151         { .val = LFS_COMP_COUNT_OPT,
3152                 .name = "component-count",      .has_arg = no_argument },
3153         { .val = LFS_COMP_FLAGS_OPT,
3154                         .name = "comp-flags",   .has_arg = optional_argument },
3155         { .val = LFS_COMP_FLAGS_OPT,
3156                 .name = "component-flags",      .has_arg = optional_argument },
3157         { .val = LFS_COMP_START_OPT,
3158                         .name = "comp-start",   .has_arg = optional_argument },
3159         { .val = LFS_COMP_START_OPT,
3160                 .name = "component-start",      .has_arg = optional_argument },
3161 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
3162         /* This formerly implied "stripe-count", but was explicitly
3163          * made "stripe-count" for consistency with other options,
3164          * and to separate it from "mdt-count" when DNE arrives. */
3165         { .val = 'c',   .name = "count",        .has_arg = no_argument },
3166 #endif
3167         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
3168         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
3169         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
3170         { .val = 'D',   .name = "default",      .has_arg = no_argument },
3171         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
3172         { .val = 'E',   .name = "component-end",
3173                                                 .has_arg = optional_argument },
3174         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
3175         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
3176         /* dirstripe { .val = 'H',      .name = "mdt-hash",
3177          *             .has_arg = required_argument }, */
3178 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
3179         /* This formerly implied "stripe-index", but was explicitly
3180          * made "stripe-index" for consistency with other options,
3181          * and to separate it from "mdt-index" when DNE arrives. */
3182         { .val = 'i',   .name = "index",        .has_arg = no_argument },
3183 #endif
3184         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
3185         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
3186         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
3187         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
3188         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
3189         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
3190         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
3191         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
3192 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3193         { .val = 'M',   .name = "mdt-index",    .has_arg = no_argument },
3194         { .val = 'M',   .name = "mdt_index",    .has_arg = no_argument },
3195 #endif
3196 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
3197         /* This formerly implied "stripe-index", but was confusing
3198          * with "file offset" (which will eventually be needed for
3199          * with different layouts by offset), so deprecate it. */
3200         { .val = 'o',   .name = "offset",       .has_arg = no_argument },
3201 #endif
3202         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
3203         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
3204         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
3205         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
3206         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
3207         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
3208 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
3209         /* This formerly implied "--stripe-size", but was confusing
3210          * with "lfs find --size|-s", which means "file size", so use
3211          * the consistent "--stripe-size|-S" for all commands. */
3212         { .val = 's',   .name = "size",         .has_arg = no_argument },
3213 #endif
3214         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
3215         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
3216         /* dirstripe { .val = 'T',      .name = "mdt-count",
3217          *             .has_arg = required_argument }, */
3218         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
3219         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
3220         { .name = NULL } };
3221         int c, rc;
3222         char *end, *tmp;
3223
3224         while ((c = getopt_long(argc, argv, "cdDE::FghiI::LmMoO:pqrRsSvy",
3225                                 long_opts, NULL)) != -1) {
3226                 switch (c) {
3227                 case 'c':
3228                         if (strcmp(argv[optind - 1], "--count") == 0)
3229                                 fprintf(stderr, "warning: '--count' deprecated,"
3230                                         " use '--stripe-count' instead\n");
3231                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
3232                                 param->fp_verbose |= VERBOSE_COUNT;
3233                                 param->fp_max_depth = 0;
3234                         }
3235                         break;
3236                 case LFS_COMP_COUNT_OPT:
3237                         param->fp_verbose |= VERBOSE_COMP_COUNT;
3238                         param->fp_max_depth = 0;
3239                         break;
3240                 case LFS_COMP_FLAGS_OPT:
3241                         if (optarg != NULL) {
3242                                 __u32 *flags = &param->fp_comp_flags;
3243                                 rc = comp_str2flags(flags, optarg);
3244                                 if (rc != 0) {
3245                                         fprintf(stderr, "error: %s bad "
3246                                                 "component flags '%s'.\n",
3247                                                 argv[0], optarg);
3248                                         return CMD_HELP;
3249                                 } else {
3250                                         param->fp_check_comp_flags = 1;
3251                                         param->fp_exclude_comp_flags =
3252                                                 comp_flags_is_neg(*flags);
3253                                         comp_flags_clear_neg(flags);
3254                                 }
3255                         } else {
3256                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
3257                                 param->fp_max_depth = 0;
3258                         }
3259                         break;
3260                 case LFS_COMP_START_OPT:
3261                         if (optarg != NULL) {
3262                                 tmp = optarg;
3263                                 if (tmp[0] == '+') {
3264                                         param->fp_comp_start_sign = -1;
3265                                         tmp++;
3266                                 } else if (tmp[0] == '-') {
3267                                         param->fp_comp_start_sign = 1;
3268                                         tmp++;
3269                                 }
3270                                 rc = llapi_parse_size(tmp,
3271                                                 &param->fp_comp_start,
3272                                                 &param->fp_comp_start_units, 0);
3273                                 if (rc != 0) {
3274                                         fprintf(stderr, "error: %s bad "
3275                                                 "component start '%s'.\n",
3276                                                 argv[0], tmp);
3277                                         return CMD_HELP;
3278                                 } else {
3279                                         param->fp_check_comp_start = 1;
3280                                 }
3281                         } else {
3282                                 param->fp_verbose |= VERBOSE_COMP_START;
3283                                 param->fp_max_depth = 0;
3284                         }
3285                         break;
3286                 case 'd':
3287                         param->fp_max_depth = 0;
3288                         break;
3289                 case 'D':
3290                         param->fp_get_default_lmv = 1;
3291                         break;
3292                 case 'E':
3293                         if (optarg != NULL) {
3294                                 tmp = optarg;
3295                                 if (tmp[0] == '+') {
3296                                         param->fp_comp_end_sign = -1;
3297                                         tmp++;
3298                                 } else if (tmp[0] == '-') {
3299                                         param->fp_comp_end_sign = 1;
3300                                         tmp++;
3301                                 }
3302
3303                                 if (arg_is_eof(tmp)) {
3304                                         param->fp_comp_end = LUSTRE_EOF;
3305                                         param->fp_comp_end_units = 1;
3306                                         rc = 0;
3307                                 } else {
3308                                         rc = llapi_parse_size(tmp,
3309                                                 &param->fp_comp_end,
3310                                                 &param->fp_comp_end_units, 0);
3311                                 }
3312                                 if (rc != 0) {
3313                                         fprintf(stderr, "error: %s bad "
3314                                                 "component end '%s'.\n",
3315                                                 argv[0], tmp);
3316                                         return CMD_HELP;
3317                                 }
3318                                 param->fp_check_comp_end = 1;
3319                         } else {
3320                                 param->fp_verbose |= VERBOSE_COMP_END;
3321                                 param->fp_max_depth = 0;
3322                         }
3323                         break;
3324                 case 'F':
3325                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
3326                                 param->fp_verbose |= VERBOSE_DFID;
3327                                 param->fp_max_depth = 0;
3328                         }
3329                         break;
3330                 case 'g':
3331                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
3332                                 param->fp_verbose |= VERBOSE_GENERATION;
3333                                 param->fp_max_depth = 0;
3334                         }
3335                         break;
3336 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
3337                 case 'o':
3338                         fprintf(stderr, "warning: '--offset|-o' deprecated, "
3339                                 "use '--stripe-index|-i' instead\n");
3340 #endif
3341                 case 'i':
3342 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 6, 53, 0)
3343                         if (strcmp(argv[optind - 1], "--index") == 0)
3344                                 fprintf(stderr, "warning: '--index' deprecated"
3345                                         ", use '--stripe-index' instead\n");
3346 #endif
3347                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
3348                                 param->fp_verbose |= VERBOSE_OFFSET;
3349                                 param->fp_max_depth = 0;
3350                         }
3351                         break;
3352                 case 'I':
3353                         if (optarg != NULL) {
3354                                 param->fp_comp_id = strtoul(optarg, &end, 0);
3355                                 if (*end != '\0' || param->fp_comp_id == 0 ||
3356                                     param->fp_comp_id > LCME_ID_MAX) {
3357                                         fprintf(stderr, "error: %s bad "
3358                                                 "component id '%s'\n",
3359                                                 argv[0], optarg);
3360                                         return CMD_HELP;
3361                                 } else {
3362                                         param->fp_check_comp_id = 1;
3363                                 }
3364                         } else {
3365                                 param->fp_max_depth = 0;
3366                                 param->fp_verbose |= VERBOSE_COMP_ID;
3367                         }
3368                         break;
3369                 case 'L':
3370                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
3371                                 param->fp_verbose |= VERBOSE_LAYOUT;
3372                                 param->fp_max_depth = 0;
3373                         }
3374                         break;
3375 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3376                 case 'M':
3377 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 11, 53, 0)
3378                         fprintf(stderr, "warning: '-M' deprecated"
3379                                 ", use '-m' instead\n");
3380 #endif
3381 #endif
3382                 case 'm':
3383                         if (!(param->fp_verbose & VERBOSE_DETAIL))
3384                                 param->fp_max_depth = 0;
3385                         param->fp_verbose |= VERBOSE_MDTINDEX;
3386                         break;
3387                 case 'O':
3388                         if (param->fp_obd_uuid) {
3389                                 fprintf(stderr,
3390                                         "error: %s: only one obduuid allowed",
3391                                         argv[0]);
3392                                 return CMD_HELP;
3393                         }
3394                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
3395                         break;
3396                 case 'p':
3397                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
3398                                 param->fp_verbose |= VERBOSE_POOL;
3399                                 param->fp_max_depth = 0;
3400                         }
3401                         break;
3402                 case 'q':
3403                         param->fp_quiet++;
3404                         break;
3405                 case 'r':
3406                         param->fp_recursive = 1;
3407                         break;
3408                 case 'R':
3409                         param->fp_raw = 1;
3410                         break;
3411 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0)
3412                 case 's':
3413                         fprintf(stderr, "warning: '--size|-s' deprecated, "
3414                                 "use '--stripe-size|-S' instead\n");
3415 #endif /* LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 9, 59, 0) */
3416                 case 'S':
3417                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
3418                                 param->fp_verbose |= VERBOSE_SIZE;
3419                                 param->fp_max_depth = 0;
3420                         }
3421                         break;
3422                 case 'v':
3423                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
3424                         break;
3425                 case 'y':
3426                         param->fp_yaml = 1;
3427                         break;
3428                 default:
3429                         return CMD_HELP;
3430                 }
3431         }
3432
3433         if (optind >= argc)
3434                 return CMD_HELP;
3435
3436         if (param->fp_recursive)
3437                 param->fp_max_depth = -1;
3438         else if (param->fp_verbose & VERBOSE_DETAIL)
3439                 param->fp_max_depth = 1;
3440
3441         if (!param->fp_verbose)
3442                 param->fp_verbose = VERBOSE_DEFAULT;
3443         if (param->fp_quiet)
3444                 param->fp_verbose = VERBOSE_OBJID;
3445
3446         do {
3447                 rc = llapi_getstripe(argv[optind], param);
3448         } while (++optind < argc && !rc);
3449
3450         if (rc)
3451                 fprintf(stderr, "error: %s failed for %s.\n",
3452                         argv[0], argv[optind - 1]);
3453         return rc;
3454 }
3455
3456 static int lfs_tgts(int argc, char **argv)
3457 {
3458         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
3459         struct find_param param;
3460         int index = 0, rc=0;
3461
3462         if (argc > 2)
3463                 return CMD_HELP;
3464
3465         if (argc == 2 && !realpath(argv[1], path)) {
3466                 rc = -errno;
3467                 fprintf(stderr, "error: invalid path '%s': %s\n",
3468                         argv[1], strerror(-rc));
3469                 return rc;
3470         }
3471
3472         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
3473                 /* Check if we have a mount point */
3474                 if (mntdir[0] == '\0')
3475                         continue;
3476
3477                 memset(&param, 0, sizeof(param));
3478                 if (!strcmp(argv[0], "mdts"))
3479                         param.fp_get_lmv = 1;
3480
3481                 rc = llapi_ostlist(mntdir, &param);
3482                 if (rc) {
3483                         fprintf(stderr, "error: %s: failed on %s\n",
3484                                 argv[0], mntdir);
3485                 }
3486                 if (path[0] != '\0')
3487                         break;
3488                 memset(mntdir, 0, PATH_MAX);
3489         }
3490
3491         return rc;
3492 }
3493
3494 static int lfs_getstripe(int argc, char **argv)
3495 {
3496         struct find_param param = { 0 };
3497
3498         param.fp_max_depth = 1;
3499         return lfs_getstripe_internal(argc, argv, &param);
3500 }
3501
3502 /* functions */
3503 static int lfs_getdirstripe(int argc, char **argv)
3504 {
3505         struct find_param param = { 0 };
3506         struct option long_opts[] = {
3507 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3508         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
3509 #endif
3510         { .val = 'D',   .name = "default",      .has_arg = no_argument },
3511         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
3512         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
3513         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
3514         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
3515 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3516         { .val = 't',   .name = "mdt-hash",     .has_arg = no_argument },
3517 #endif
3518         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
3519         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
3520         { .name = NULL } };
3521         int c, rc;
3522
3523         param.fp_get_lmv = 1;
3524
3525         while ((c = getopt_long(argc, argv,
3526                                 "cDHiO:rtTy", long_opts, NULL)) != -1)
3527         {
3528                 switch (c) {
3529                 case 'O':
3530                         if (param.fp_obd_uuid) {
3531                                 fprintf(stderr,
3532                                         "error: %s: only one obduuid allowed",
3533                                         argv[0]);
3534                                 return CMD_HELP;
3535                         }
3536                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
3537                         break;
3538 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3539                 case 'c':
3540 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 10, 50, 0)
3541                         fprintf(stderr, "warning: '-c' deprecated"
3542                                 ", use '-T' instead\n");
3543 #endif
3544 #endif
3545                 case 'T':
3546                         param.fp_verbose |= VERBOSE_COUNT;
3547                         break;
3548                 case 'i':
3549                         param.fp_verbose |= VERBOSE_OFFSET;
3550                         break;
3551 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3552                 case 't':
3553 #endif
3554                 case 'H':
3555                         param.fp_verbose |= VERBOSE_HASH_TYPE;
3556                         break;
3557                 case 'D':
3558                         param.fp_get_default_lmv = 1;
3559                         break;
3560                 case 'r':
3561                         param.fp_recursive = 1;
3562                         break;
3563                 case 'y':
3564                         param.fp_yaml = 1;
3565                         break;
3566                 default:
3567                         return CMD_HELP;
3568                 }
3569         }
3570
3571         if (optind >= argc)
3572                 return CMD_HELP;
3573
3574         if (param.fp_recursive)
3575                 param.fp_max_depth = -1;
3576
3577         if (!param.fp_verbose)
3578                 param.fp_verbose = VERBOSE_DEFAULT;
3579
3580         do {
3581                 rc = llapi_getstripe(argv[optind], &param);
3582         } while (++optind < argc && !rc);
3583
3584         if (rc)
3585                 fprintf(stderr, "error: %s failed for %s.\n",
3586                         argv[0], argv[optind - 1]);
3587         return rc;
3588 }
3589
3590 /* functions */
3591 static int lfs_setdirstripe(int argc, char **argv)
3592 {
3593         char                    *dname;
3594         int                     result;
3595         struct lfs_setstripe_args        lsa;
3596         struct llapi_stripe_param       *param = NULL;
3597         __u32                   mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
3598         char                    *end;
3599         int                     c;
3600         char                    *mode_opt = NULL;
3601         bool                    default_stripe = false;
3602         mode_t                  mode = S_IRWXU | S_IRWXG | S_IRWXO;
3603         mode_t                  previous_mode = 0;
3604         bool                    delete = false;
3605
3606         struct option long_opts[] = {
3607 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3608         { .val = 'c',   .name = "count",        .has_arg = required_argument },
3609 #endif
3610         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
3611         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
3612 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3613         { .val = 'i',   .name = "index",        .has_arg = required_argument },
3614 #endif
3615         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
3616         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
3617 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3618         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
3619         { .val = 't',   .name = "mdt-hash",     .has_arg = required_argument },
3620 #endif
3621                 {"mdt-hash",    required_argument, 0, 'H'},
3622 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3623         { .val = 'D',   .name = "default_stripe",
3624                                                 .has_arg = no_argument },
3625 #endif
3626         { .val = 'D',   .name = "default",      .has_arg = no_argument },
3627         { .name = NULL } };
3628
3629         setstripe_args_init(&lsa);
3630
3631         while ((c = getopt_long(argc, argv, "c:dDi:H:m:t:", long_opts,
3632                                 NULL)) >= 0) {
3633                 switch (c) {
3634                 case 0:
3635                         /* Long options. */
3636                         break;
3637                 case 'c':
3638 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 11, 53, 0)
3639                         if (strcmp(argv[optind - 1], "--count") == 0)
3640                                 fprintf(stderr,
3641                                         "%s %s: warning: '--count' deprecated, use '--mdt-count' instead\n",
3642                                         progname, argv[0]);
3643 #endif
3644                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3645                         if (*end != '\0') {
3646                                 fprintf(stderr,
3647                                         "%s %s: invalid stripe count '%s'\n",
3648                                         progname, argv[0], optarg);
3649                                 return CMD_HELP;
3650                         }
3651                         break;
3652                 case 'd':
3653                         delete = true;
3654                         default_stripe = true;
3655                         break;
3656                 case 'D':
3657                         default_stripe = true;
3658                         break;
3659                 case 'i':
3660 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 11, 53, 0)
3661                         if (strcmp(argv[optind - 1], "--index") == 0)
3662                                 fprintf(stderr,
3663                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
3664                                         progname, argv[0]);
3665 #endif
3666                         lsa.lsa_nr_tgts = parse_targets(mdts,
3667                                                 sizeof(mdts) / sizeof(__u32),
3668                                                 lsa.lsa_nr_tgts, optarg);
3669                         if (lsa.lsa_nr_tgts < 0) {
3670                                 fprintf(stderr,
3671                                         "%s %s: invalid MDT target(s) '%s'\n",
3672                                         progname, argv[0], optarg);
3673                                 return CMD_HELP;
3674                         }
3675
3676                         lsa.lsa_tgts = mdts;
3677                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3678                                 lsa.lsa_stripe_off = mdts[0];
3679                         break;
3680                 case 'm':
3681                         mode_opt = optarg;
3682                         break;
3683 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3684                 case 't':
3685 #endif
3686                 case 'H':
3687 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 11, 53, 0)
3688                         if (strcmp(argv[optind - 1], "--hash-type") == 0)
3689                                 fprintf(stderr,
3690                                         "%s %s: warning: '--hash-type' deprecated, use '--mdt-hash' instead\n",
3691                                         progname, argv[0]);
3692 #endif
3693                         lsa.lsa_pattern = check_hashtype(optarg);
3694                         if (lsa.lsa_pattern == 0) {
3695                                 fprintf(stderr,
3696                                         "%s %s: bad stripe hash type '%s'\n",
3697                                         progname, argv[0], optarg);
3698                                 return CMD_HELP;
3699                         }
3700                         break;
3701                 default:
3702                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
3703                                 progname, argv[0], argv[optind - 1]);
3704                         return CMD_HELP;
3705                 }
3706         }
3707
3708         if (optind == argc) {
3709                 fprintf(stderr, "%s %s: DIR must be specified\n",
3710                         progname, argv[0]);
3711                 return CMD_HELP;
3712         }
3713
3714         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
3715             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT) {
3716                 fprintf(stderr,
3717                         "%s %s: stripe offset and count must be specified\n",
3718                         progname, argv[0]);
3719                 return CMD_HELP;
3720         }
3721
3722         if (delete &&
3723             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
3724              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
3725                 fprintf(stderr,
3726                         "%s %s: cannot specify -d with -c or -i options\n",
3727                         progname, argv[0]);
3728                 return CMD_HELP;
3729         }
3730
3731         if (mode_opt != NULL) {
3732                 mode = strtoul(mode_opt, &end, 8);
3733                 if (*end != '\0') {
3734                         fprintf(stderr,
3735                                 "%s %s: bad MODE '%s'\n",
3736                                 progname, argv[0], mode_opt);
3737                         return CMD_HELP;
3738                 }
3739                 previous_mode = umask(0);
3740         }
3741
3742         /* initialize stripe parameters */
3743         param = calloc(1, offsetof(typeof(*param), lsp_osts[lsa.lsa_nr_tgts]));
3744         if (param == NULL) {
3745                 fprintf(stderr,
3746                         "%s %s: cannot allocate memory for parameters: %s\n",
3747                         progname, argv[0], strerror(ENOMEM));
3748                 return CMD_HELP;
3749         }
3750
3751         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
3752                 param->lsp_stripe_count = lsa.lsa_stripe_count;
3753         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3754                 param->lsp_stripe_offset = -1;
3755         else
3756                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
3757         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
3758                 param->lsp_stripe_pattern = lsa.lsa_pattern;
3759         else
3760                 param->lsp_stripe_pattern = LMV_HASH_TYPE_FNV_1A_64;
3761         param->lsp_pool = lsa.lsa_pool_name;
3762         param->lsp_is_specific = false;
3763         if (lsa.lsa_nr_tgts > 1) {
3764                 if (lsa.lsa_stripe_count > 0 &&
3765                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3766                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
3767                         fprintf(stderr, "error: %s: stripe count %lld doesn't "
3768                                 "match the number of MDTs: %d\n",
3769                                 argv[0], lsa.lsa_stripe_count, lsa.lsa_nr_tgts);
3770                         free(param);
3771                         return CMD_HELP;
3772                 }
3773
3774                 param->lsp_is_specific = true;
3775                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
3776                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
3777         }
3778
3779         dname = argv[optind];
3780         do {
3781                 if (default_stripe)
3782                         result = llapi_dir_set_default_lmv(dname, param);
3783                 else
3784                         result = llapi_dir_create_param(dname, mode, param);
3785
3786                 if (result) {
3787                         fprintf(stderr,
3788                                 "%s setdirstripe: cannot create stripe dir '%s': %s\n",
3789                                 progname, dname, strerror(-result));
3790                         break;
3791                 }
3792                 dname = argv[++optind];
3793         } while (dname != NULL);
3794
3795         if (mode_opt != NULL)
3796                 umask(previous_mode);
3797
3798         free(param);
3799         return result;
3800 }
3801
3802 /* functions */
3803 static int lfs_rmentry(int argc, char **argv)
3804 {
3805         char *dname;
3806         int   index;
3807         int   result = 0;
3808
3809         if (argc <= 1) {
3810                 fprintf(stderr, "error: %s: missing dirname\n",
3811                         argv[0]);
3812                 return CMD_HELP;
3813         }
3814
3815         index = 1;
3816         dname = argv[index];
3817         while (dname != NULL) {
3818                 result = llapi_direntry_remove(dname);
3819                 if (result) {
3820                         fprintf(stderr, "error: %s: remove dir entry '%s' "
3821                                 "failed\n", argv[0], dname);
3822                         break;
3823                 }
3824                 dname = argv[++index];
3825         }
3826         return result;
3827 }
3828
3829 static int lfs_mv(int argc, char **argv)
3830 {
3831         struct  find_param param = {
3832                 .fp_max_depth = -1,
3833                 .fp_mdt_index = -1,
3834         };
3835         char   *end;
3836         int     c;
3837         int     rc = 0;
3838         struct option long_opts[] = {
3839         { .val = 'M',   .name = "mdt-index",    .has_arg = required_argument },
3840         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
3841         { .name = NULL } };
3842
3843         while ((c = getopt_long(argc, argv, "M:v", long_opts, NULL)) != -1) {
3844                 switch (c) {
3845                 case 'M': {
3846                         param.fp_mdt_index = strtoul(optarg, &end, 0);
3847                         if (*end != '\0') {
3848                                 fprintf(stderr, "%s: invalid MDT index'%s'\n",
3849                                         argv[0], optarg);
3850                                 return CMD_HELP;
3851                         }
3852                         break;
3853                 }
3854                 case 'v': {
3855                         param.fp_verbose = VERBOSE_DETAIL;
3856                         break;
3857                 }
3858                 default:
3859                         fprintf(stderr, "error: %s: unrecognized option '%s'\n",
3860                                 argv[0], argv[optind - 1]);
3861                         return CMD_HELP;
3862                 }
3863         }
3864
3865         if (param.fp_mdt_index == -1) {
3866                 fprintf(stderr, "%s: MDT index must be specified\n", argv[0]);
3867                 return CMD_HELP;
3868         }
3869
3870         if (optind >= argc) {
3871                 fprintf(stderr, "%s: missing operand path\n", argv[0]);
3872                 return CMD_HELP;
3873         }
3874
3875         param.fp_migrate = 1;
3876         rc = llapi_migrate_mdt(argv[optind], &param);
3877         if (rc != 0)
3878                 fprintf(stderr, "%s: cannot migrate '%s' to MDT%04x: %s\n",
3879                         argv[0], argv[optind], param.fp_mdt_index,
3880                         strerror(-rc));
3881         return rc;
3882 }
3883
3884 static int lfs_osts(int argc, char **argv)
3885 {
3886         return lfs_tgts(argc, argv);
3887 }
3888
3889 static int lfs_mdts(int argc, char **argv)
3890 {
3891         return lfs_tgts(argc, argv);
3892 }
3893
3894 #define COOK(value)                                                     \
3895 ({                                                                      \
3896         int radix = 0;                                                  \
3897         while (value > 1024) {                                          \
3898                 value /= 1024;                                          \
3899                 radix++;                                                \
3900         }                                                               \
3901         radix;                                                          \
3902 })
3903 #define UUF     "%-20s"
3904 #define CSF     "%11s"
3905 #define CDF     "%11llu"
3906 #define HDF     "%8.1f%c"
3907 #define RSF     "%4s"
3908 #define RDF     "%3d%%"
3909
3910 enum mntdf_flags {
3911         MNTDF_INODES    = 0x0001,
3912         MNTDF_COOKED    = 0x0002,
3913         MNTDF_LAZY      = 0x0004,
3914         MNTDF_VERBOSE   = 0x0008,
3915 };
3916
3917 static int showdf(char *mntdir, struct obd_statfs *stat,
3918                   char *uuid, enum mntdf_flags flags,
3919                   char *type, int index, int rc)
3920 {
3921         long long avail, used, total;
3922         double ratio = 0;
3923         char *suffix = "KMGTPEZY";
3924         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
3925         char tbuf[3 * sizeof(__u64)];
3926         char ubuf[3 * sizeof(__u64)];
3927         char abuf[3 * sizeof(__u64)];
3928         char rbuf[3 * sizeof(__u64)];
3929
3930         if (!uuid || !stat)
3931                 return -EINVAL;
3932
3933         switch (rc) {
3934         case 0:
3935                 if (flags & MNTDF_INODES) {
3936                         avail = stat->os_ffree;
3937                         used = stat->os_files - stat->os_ffree;
3938                         total = stat->os_files;
3939                 } else {
3940                         int shift = flags & MNTDF_COOKED ? 0 : 10;
3941
3942                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
3943                         used  = ((stat->os_blocks - stat->os_bfree) *
3944                                  stat->os_bsize) >> shift;
3945                         total = (stat->os_blocks * stat->os_bsize) >> shift;
3946                 }
3947
3948                 if ((used + avail) > 0)
3949                         ratio = (double)used / (double)(used + avail);
3950
3951                 if (flags & MNTDF_COOKED) {
3952                         int i;
3953                         double cook_val;
3954
3955                         cook_val = (double)total;
3956                         i = COOK(cook_val);
3957                         if (i > 0)
3958                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
3959                                          suffix[i - 1]);
3960                         else
3961                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
3962
3963                         cook_val = (double)used;
3964                         i = COOK(cook_val);
3965                         if (i > 0)
3966                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
3967                                          suffix[i - 1]);
3968                         else
3969                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
3970
3971                         cook_val = (double)avail;
3972                         i = COOK(cook_val);
3973                         if (i > 0)
3974                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
3975                                          suffix[i - 1]);
3976                         else
3977                                 snprintf(abuf, sizeof(abuf), CDF, avail);
3978                 } else {
3979                         snprintf(tbuf, sizeof(tbuf), CDF, total);
3980                         snprintf(ubuf, sizeof(tbuf), CDF, used);
3981                         snprintf(abuf, sizeof(tbuf), CDF, avail);
3982                 }
3983
3984                 sprintf(rbuf, RDF, (int)(ratio * 100 + 0.5));
3985                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
3986                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
3987                 if (type)
3988                         printf("[%s:%d]", type, index);
3989
3990                 if (stat->os_state) {
3991                         /*
3992                          * Each character represents the matching
3993                          * OS_STATE_* bit.
3994                          */
3995                         const char state_names[] = "DRSI";
3996                         __u32      state;
3997                         __u32      i;
3998
3999                         printf(" ");
4000                         for (i = 0, state = stat->os_state;
4001                              state && i < sizeof(state_names); i++) {
4002                                 if (!(state & (1 << i)))
4003                                         continue;
4004                                 printf("%c", state_names[i]);
4005                                 state ^= 1 << i;
4006                         }
4007                 }
4008
4009                 printf("\n");
4010                 break;
4011         case -ENODATA:
4012                 printf(UUF": inactive device\n", uuid);
4013                 break;
4014         default:
4015                 printf(UUF": %s\n", uuid, strerror(-rc));
4016                 break;
4017         }
4018
4019         return 0;
4020 }
4021
4022 struct ll_stat_type {
4023         int   st_op;
4024         char *st_name;
4025 };
4026
4027 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags)
4028 {
4029         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
4030         struct obd_uuid uuid_buf;
4031         char *poolname = NULL;
4032         struct ll_stat_type types[] = {
4033                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
4034                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
4035                 { .st_name = NULL } };
4036         struct ll_stat_type *tp;
4037         __u64 ost_ffree = 0;
4038         __u32 index;
4039         __u32 type;
4040         int fd;
4041         int rc = 0;
4042         int rc2;
4043
4044         if (pool) {
4045                 poolname = strchr(pool, '.');
4046                 if (poolname != NULL) {
4047                         if (strncmp(fsname, pool, strlen(fsname))) {
4048                                 fprintf(stderr, "filesystem name incorrect\n");
4049                                 return -ENODEV;
4050                         }
4051                         poolname++;
4052                 } else
4053                         poolname = pool;
4054         }
4055
4056         fd = open(mntdir, O_RDONLY);
4057         if (fd < 0) {
4058                 rc = -errno;
4059                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
4060                         strerror(errno));
4061                 return rc;
4062         }
4063
4064         if (flags & MNTDF_INODES)
4065                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4066                        "UUID", "Inodes", "IUsed", "IFree",
4067                        "IUse%", "Mounted on");
4068         else
4069                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4070                        "UUID", flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
4071                        "Used", "Available", "Use%", "Mounted on");
4072
4073         for (tp = types; tp->st_name != NULL; tp++) {
4074                 for (index = 0; ; index++) {
4075                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
4076                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
4077                         type = flags & MNTDF_LAZY ?
4078                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
4079                         rc2 = llapi_obd_fstatfs(fd, type, index,
4080                                                &stat_buf, &uuid_buf);
4081                         if (rc2 == -ENODEV)
4082                                 break;
4083                         if (rc2 == -EAGAIN)
4084                                 continue;
4085                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
4086                                 if (!(flags & MNTDF_VERBOSE))
4087                                         continue;
4088                         } else if (rc2 < 0 && rc == 0) {
4089                                 rc = rc2;
4090                         }
4091
4092                         if (poolname && tp->st_op == LL_STATFS_LOV &&
4093                             llapi_search_ost(fsname, poolname,
4094                                              obd_uuid2str(&uuid_buf)) != 1)
4095                                 continue;
4096
4097                         /* the llapi_obd_statfs() call may have returned with
4098                          * an error, but if it filled in uuid_buf we will at
4099                          * lease use that to print out a message for that OBD.
4100                          * If we didn't get anything in the uuid_buf, then fill
4101                          * it in so that we can print an error message. */
4102                         if (uuid_buf.uuid[0] == '\0')
4103                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
4104                                          "%s%04x", tp->st_name, index);
4105                         showdf(mntdir, &stat_buf, obd_uuid2str(&uuid_buf),
4106                                flags, tp->st_name, index, rc2);
4107
4108                         if (rc2 == 0) {
4109                                 if (tp->st_op == LL_STATFS_LMV) {
4110                                         sum.os_ffree += stat_buf.os_ffree;
4111                                         sum.os_files += stat_buf.os_files;
4112                                 } else /* if (tp->st_op == LL_STATFS_LOV) */ {
4113                                         sum.os_blocks += stat_buf.os_blocks *
4114                                                 stat_buf.os_bsize;
4115                                         sum.os_bfree  += stat_buf.os_bfree *
4116                                                 stat_buf.os_bsize;
4117                                         sum.os_bavail += stat_buf.os_bavail *
4118                                                 stat_buf.os_bsize;
4119                                         ost_ffree += stat_buf.os_ffree;
4120                                 }
4121                         }
4122                 }
4123         }
4124
4125         close(fd);
4126
4127         /* If we don't have as many objects free on the OST as inodes
4128          * on the MDS, we reduce the total number of inodes to
4129          * compensate, so that the "inodes in use" number is correct.
4130          * Matches ll_statfs_internal() so the results are consistent. */
4131         if (ost_ffree < sum.os_ffree) {
4132                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
4133                 sum.os_ffree = ost_ffree;
4134         }
4135         printf("\n");
4136         showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
4137         printf("\n");
4138
4139         return rc;
4140 }
4141
4142 static int lfs_df(int argc, char **argv)
4143 {
4144         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
4145         enum mntdf_flags flags = 0;
4146         int c, rc = 0, index = 0;
4147         char fsname[PATH_MAX] = "", *pool_name = NULL;
4148         struct option long_opts[] = {
4149         { .val = 'h',   .name = "human-readable",
4150                                                 .has_arg = no_argument },
4151         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
4152         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
4153         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
4154         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
4155         { .name = NULL} };
4156
4157         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
4158                 switch (c) {
4159                 case 'h':
4160                         flags |= MNTDF_COOKED;
4161                         break;
4162                 case 'i':
4163                         flags |= MNTDF_INODES;
4164                         break;
4165                 case 'l':
4166                         flags |= MNTDF_LAZY;
4167                         break;
4168                 case 'p':
4169                         pool_name = optarg;
4170                         break;
4171                 case 'v':
4172                         flags |= MNTDF_VERBOSE;
4173                         break;
4174                 default:
4175                         return CMD_HELP;
4176                 }
4177         }
4178         if (optind < argc && !realpath(argv[optind], path)) {
4179                 rc = -errno;
4180                 fprintf(stderr, "error: invalid path '%s': %s\n",
4181                         argv[optind], strerror(-rc));
4182                 return rc;
4183         }
4184
4185         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
4186                 /* Check if we have a mount point */
4187                 if (mntdir[0] == '\0')
4188                         continue;
4189
4190                 rc = mntdf(mntdir, fsname, pool_name, flags);
4191                 if (rc || path[0] != '\0')
4192                         break;
4193                 fsname[0] = '\0'; /* avoid matching in next loop */
4194                 mntdir[0] = '\0'; /* avoid matching in next loop */
4195         }
4196
4197         return rc;
4198 }
4199
4200 static int lfs_getname(int argc, char **argv)
4201 {
4202         char mntdir[PATH_MAX] = "", path[PATH_MAX] = "", fsname[PATH_MAX] = "";
4203         int rc = 0, index = 0, c;
4204         char buf[sizeof(struct obd_uuid)];
4205
4206         while ((c = getopt(argc, argv, "h")) != -1)
4207                 return CMD_HELP;
4208
4209         if (optind == argc) { /* no paths specified, get all paths. */
4210                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
4211                         rc = llapi_getname(mntdir, buf, sizeof(buf));
4212                         if (rc < 0) {
4213                                 fprintf(stderr,
4214                                         "cannot get name for `%s': %s\n",
4215                                         mntdir, strerror(-rc));
4216                                 break;
4217                         }
4218
4219                         printf("%s %s\n", buf, mntdir);
4220
4221                         path[0] = fsname[0] = mntdir[0] = 0;
4222                 }
4223         } else { /* paths specified, only attempt to search these. */
4224                 for (; optind < argc; optind++) {
4225                         rc = llapi_getname(argv[optind], buf, sizeof(buf));
4226                         if (rc < 0) {
4227                                 fprintf(stderr,
4228                                         "cannot get name for `%s': %s\n",
4229                                         argv[optind], strerror(-rc));
4230                                 break;
4231                         }
4232
4233                         printf("%s %s\n", buf, argv[optind]);
4234                 }
4235         }
4236         return rc;
4237 }
4238
4239 static int lfs_check(int argc, char **argv)
4240 {
4241         int rc;
4242         char mntdir[PATH_MAX] = {'\0'};
4243         int num_types = 1;
4244         char *obd_types[2];
4245         char obd_type1[4];
4246         char obd_type2[4];
4247
4248         if (argc != 2)
4249                 return CMD_HELP;
4250
4251         obd_types[0] = obd_type1;
4252         obd_types[1] = obd_type2;
4253
4254         if (strcmp(argv[1], "osts") == 0) {
4255                 strcpy(obd_types[0], "osc");
4256         } else if (strcmp(argv[1], "mds") == 0) {
4257                 strcpy(obd_types[0], "mdc");
4258         } else if (strcmp(argv[1], "servers") == 0) {
4259                 num_types = 2;
4260                 strcpy(obd_types[0], "osc");
4261                 strcpy(obd_types[1], "mdc");
4262         } else {
4263                 fprintf(stderr, "error: %s: option '%s' unrecognized\n",
4264                                 argv[0], argv[1]);
4265                         return CMD_HELP;
4266         }
4267
4268         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
4269         if (rc < 0 || mntdir[0] == '\0') {
4270                 fprintf(stderr, "No suitable Lustre mount found\n");
4271                 return rc;
4272         }
4273
4274         rc = llapi_target_check(num_types, obd_types, mntdir);
4275         if (rc)
4276                 fprintf(stderr, "error: %s: %s status failed\n",
4277                                 argv[0],argv[1]);
4278
4279         return rc;
4280
4281 }
4282
4283 #ifdef HAVE_SYS_QUOTA_H
4284 #define ARG2INT(nr, str, msg)                                           \
4285 do {                                                                    \
4286         char *endp;                                                     \
4287         nr = strtol(str, &endp, 0);                                     \
4288         if (*endp != '\0') {                                            \
4289                 fprintf(stderr, "%s: bad %s '%s'\n",                    \
4290                         progname, msg, str);                            \
4291                 return CMD_HELP;                                        \
4292         }                                                               \
4293 } while (0)
4294
4295 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
4296
4297 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
4298  * returns the value or ULONG_MAX on integer overflow or incorrect format
4299  * Notes:
4300  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
4301  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
4302  *        3. empty integer value is interpreted as 0
4303  */
4304 static unsigned long str2sec(const char* timestr)
4305 {
4306         const char spec[] = "smhdw";
4307         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
4308         unsigned long val = 0;
4309         char *tail;
4310
4311         if (strpbrk(timestr, spec) == NULL) {
4312                 /* no specifiers inside the time string,
4313                    should treat it as an integer value */
4314                 val = strtoul(timestr, &tail, 10);
4315                 return *tail ? ULONG_MAX : val;
4316         }
4317
4318         /* format string is XXwXXdXXhXXmXXs */
4319         while (*timestr) {
4320                 unsigned long v;
4321                 int ind;
4322                 char* ptr;
4323
4324                 v = strtoul(timestr, &tail, 10);
4325                 if (v == ULONG_MAX || *tail == '\0')
4326                         /* value too large (ULONG_MAX or more)
4327                            or missing specifier */
4328                         goto error;
4329
4330                 ptr = strchr(spec, *tail);
4331                 if (ptr == NULL)
4332                         /* unknown specifier */
4333                         goto error;
4334
4335                 ind = ptr - spec;
4336
4337                 /* check if product will overflow the type */
4338                 if (!(v < ULONG_MAX / mult[ind]))
4339                         goto error;
4340
4341                 ADD_OVERFLOW(val, mult[ind] * v);
4342                 if (val == ULONG_MAX)
4343                         goto error;
4344
4345                 timestr = tail + 1;
4346         }
4347
4348         return val;
4349
4350 error:
4351         return ULONG_MAX;
4352 }
4353
4354 #define ARG2ULL(nr, str, def_units)                                     \
4355 do {                                                                    \
4356         unsigned long long limit, units = def_units;                    \
4357         int rc;                                                         \
4358                                                                         \
4359         rc = llapi_parse_size(str, &limit, &units, 1);                  \
4360         if (rc < 0) {                                                   \
4361                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
4362                         progname, str);                                 \
4363                 return CMD_HELP;                                        \
4364         }                                                               \
4365         nr = limit;                                                     \
4366 } while (0)
4367
4368 static inline int has_times_option(int argc, char **argv)
4369 {
4370         int i;
4371
4372         for (i = 1; i < argc; i++)
4373                 if (!strcmp(argv[i], "-t"))
4374                         return 1;
4375
4376         return 0;
4377 }
4378
4379 int lfs_setquota_times(int argc, char **argv)
4380 {
4381         int c, rc;
4382         struct if_quotactl qctl;
4383         char *mnt, *obd_type = (char *)qctl.obd_type;
4384         struct obd_dqblk *dqb = &qctl.qc_dqblk;
4385         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
4386         struct option long_opts[] = {
4387         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
4388         { .val = 'g',   .name = "group",        .has_arg = no_argument },
4389         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
4390         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
4391         { .val = 't',   .name = "times",        .has_arg = no_argument },
4392         { .val = 'u',   .name = "user",         .has_arg = no_argument },
4393         { .name = NULL } };
4394         int qtype;
4395
4396         memset(&qctl, 0, sizeof(qctl));
4397         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
4398         qctl.qc_type = ALLQUOTA;
4399
4400         while ((c = getopt_long(argc, argv, "b:gi:ptu",
4401                                 long_opts, NULL)) != -1) {
4402                 switch (c) {
4403                 case 'u':
4404                         qtype = USRQUOTA;
4405                         goto quota_type;
4406                 case 'g':
4407                         qtype = GRPQUOTA;
4408                         goto quota_type;
4409                 case 'p':
4410                         qtype = PRJQUOTA;
4411 quota_type:
4412                         if (qctl.qc_type != ALLQUOTA) {
4413                                 fprintf(stderr, "error: -u/g/p can't be used "
4414                                                 "more than once\n");
4415                                 return CMD_HELP;
4416                         }
4417                         qctl.qc_type = qtype;
4418                         break;
4419                 case 'b':
4420                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
4421                                 fprintf(stderr, "error: bad block-grace: %s\n",
4422                                         optarg);
4423                                 return CMD_HELP;
4424                         }
4425                         dqb->dqb_valid |= QIF_BTIME;
4426                         break;
4427                 case 'i':
4428                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
4429                                 fprintf(stderr, "error: bad inode-grace: %s\n",
4430                                         optarg);
4431                                 return CMD_HELP;
4432                         }
4433                         dqb->dqb_valid |= QIF_ITIME;
4434                         break;
4435                 case 't': /* Yes, of course! */
4436                         break;
4437                 default: /* getopt prints error message for us when opterr != 0 */
4438                         return CMD_HELP;
4439                 }
4440         }
4441
4442         if (qctl.qc_type == ALLQUOTA) {
4443                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
4444                 return CMD_HELP;
4445         }
4446
4447         if (optind != argc - 1) {
4448                 fprintf(stderr, "error: unexpected parameters encountered\n");
4449                 return CMD_HELP;
4450         }
4451
4452         mnt = argv[optind];
4453         rc = llapi_quotactl(mnt, &qctl);
4454         if (rc) {
4455                 if (*obd_type)
4456                         fprintf(stderr, "%s %s ", obd_type,
4457                                 obd_uuid2str(&qctl.obd_uuid));
4458                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
4459                 return rc;
4460         }
4461
4462         return 0;
4463 }
4464
4465 #define BSLIMIT (1 << 0)
4466 #define BHLIMIT (1 << 1)
4467 #define ISLIMIT (1 << 2)
4468 #define IHLIMIT (1 << 3)
4469
4470 int lfs_setquota(int argc, char **argv)
4471 {
4472         int c, rc;
4473         struct if_quotactl qctl;
4474         char *mnt, *obd_type = (char *)qctl.obd_type;
4475         struct obd_dqblk *dqb = &qctl.qc_dqblk;
4476         struct option long_opts[] = {
4477         { .val = 'b',   .name = "block-softlimit",
4478                                                 .has_arg = required_argument },
4479         { .val = 'B',   .name = "block-hardlimit",
4480                                                 .has_arg = required_argument },
4481         { .val = 'g',   .name = "group",        .has_arg = required_argument },
4482         { .val = 'i',   .name = "inode-softlimit",
4483                                                 .has_arg = required_argument },
4484         { .val = 'I',   .name = "inode-hardlimit",
4485                                                 .has_arg = required_argument },
4486         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
4487         { .val = 'u',   .name = "user",         .has_arg = required_argument },
4488         { .name = NULL } };
4489         unsigned limit_mask = 0;
4490         char *endptr;
4491         int qtype;
4492
4493         if (has_times_option(argc, argv))
4494                 return lfs_setquota_times(argc, argv);
4495
4496         memset(&qctl, 0, sizeof(qctl));
4497         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
4498         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
4499                                   * so it can be used as a marker that qc_type
4500                                   * isn't reinitialized from command line */
4501
4502         while ((c = getopt_long(argc, argv, "b:B:g:i:I:p:u:",
4503                 long_opts, NULL)) != -1) {
4504                 switch (c) {
4505                 case 'u':
4506                         qtype = USRQUOTA;
4507                         rc = name2uid(&qctl.qc_id, optarg);
4508                         goto quota_type;
4509                 case 'g':
4510                         qtype = GRPQUOTA;
4511                         rc = name2gid(&qctl.qc_id, optarg);
4512                         goto quota_type;
4513                 case 'p':
4514                         qtype = PRJQUOTA;
4515                         rc = name2projid(&qctl.qc_id, optarg);
4516 quota_type:
4517                         if (qctl.qc_type != ALLQUOTA) {
4518                                 fprintf(stderr,
4519                                         "%s setquota: only one of -u, -g or -p may be specified\n",
4520                                         progname);
4521                                 return CMD_HELP;
4522                         }
4523                         qctl.qc_type = qtype;
4524                         if (rc) {
4525                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
4526                                 if (*endptr != '\0') {
4527                                         fprintf(stderr,
4528                                                 "%s setquota: invalid id '%s'\n",
4529                                                 progname, optarg);
4530                                         return -1;
4531                                 }
4532                         }
4533                         break;
4534                 case 'b':
4535                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
4536                         dqb->dqb_bsoftlimit >>= 10;
4537                         limit_mask |= BSLIMIT;
4538                         if (dqb->dqb_bsoftlimit &&
4539                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
4540                                 fprintf(stderr,
4541                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\n"
4542                                         "See '%s help setquota' or Lustre manual for details\n",
4543                                         progname, dqb->dqb_bsoftlimit,
4544                                         progname);
4545                         break;
4546                 case 'B':
4547                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
4548                         dqb->dqb_bhardlimit >>= 10;
4549                         limit_mask |= BHLIMIT;
4550                         if (dqb->dqb_bhardlimit &&
4551                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
4552                                 fprintf(stderr,
4553                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
4554                                         "See '%s help setquota' or Lustre manual for details\n",
4555                                         progname, dqb->dqb_bhardlimit,
4556                                         progname);
4557                         break;
4558                 case 'i':
4559                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
4560                         limit_mask |= ISLIMIT;
4561                         if (dqb->dqb_isoftlimit &&
4562                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
4563                                 fprintf(stderr,
4564                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\n"
4565                                         "See '%s help setquota' or Lustre manual for details\n",
4566                                         progname, dqb->dqb_isoftlimit,
4567                                         progname);
4568                         break;
4569                 case 'I':
4570                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
4571                         limit_mask |= IHLIMIT;
4572                         if (dqb->dqb_ihardlimit &&
4573                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
4574                                 fprintf(stderr,
4575                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\n"
4576                                         "See '%s help setquota' or Lustre manual for details\n",
4577                                         progname, dqb->dqb_ihardlimit,
4578                                         progname);
4579                         break;
4580                 default:
4581                         fprintf(stderr,
4582                                 "%s setquota: unrecognized option '%s'\n",
4583                                 progname, argv[optind - 1]);
4584                         return CMD_HELP;
4585                 }
4586         }
4587
4588         if (qctl.qc_type == ALLQUOTA) {
4589                 fprintf(stderr,
4590                         "%s setquota: either -u or -g must be specified\n",
4591                         progname);
4592                 return CMD_HELP;
4593         }
4594
4595         if (limit_mask == 0) {
4596                 fprintf(stderr,
4597                         "%s setquota: at least one limit must be specified\n",
4598                         progname);
4599                 return CMD_HELP;
4600         }
4601
4602         if (optind != argc - 1) {
4603                 fprintf(stderr,
4604                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
4605                         progname, argv[optind]);
4606                 return CMD_HELP;
4607         }
4608
4609         mnt = argv[optind];
4610
4611         if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
4612             (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
4613                 /* sigh, we can't just set blimits/ilimits */
4614                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
4615                                                .qc_type = qctl.qc_type,
4616                                                .qc_id   = qctl.qc_id};
4617
4618                 rc = llapi_quotactl(mnt, &tmp_qctl);
4619                 if (rc < 0)
4620                         return rc;
4621
4622                 if (!(limit_mask & BHLIMIT))
4623                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
4624                 if (!(limit_mask & BSLIMIT))
4625                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
4626                 if (!(limit_mask & IHLIMIT))
4627                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
4628                 if (!(limit_mask & ISLIMIT))
4629                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
4630
4631                 /* Keep grace times if we have got no softlimit arguments */
4632                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
4633                         dqb->dqb_valid |= QIF_BTIME;
4634                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
4635                 }
4636
4637                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
4638                         dqb->dqb_valid |= QIF_ITIME;
4639                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
4640                 }
4641         }
4642
4643         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
4644         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
4645
4646         rc = llapi_quotactl(mnt, &qctl);
4647         if (rc) {
4648                 if (*obd_type)
4649                         fprintf(stderr,
4650                                 "%s setquota: cannot quotactl '%s' '%s': %s",
4651                                 progname, obd_type,
4652                                 obd_uuid2str(&qctl.obd_uuid), strerror(-rc));
4653                 return rc;
4654         }
4655
4656         return 0;
4657 }
4658
4659 /* Converts seconds value into format string
4660  * result is returned in buf
4661  * Notes:
4662  *        1. result is in descenting order: 1w2d3h4m5s
4663  *        2. zero fields are not filled (except for p. 3): 5d1s
4664  *        3. zero seconds value is presented as "0s"
4665  */
4666 static char * __sec2str(time_t seconds, char *buf)
4667 {
4668         const char spec[] = "smhdw";
4669         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
4670         unsigned long c;
4671         char *tail = buf;
4672         int i;
4673
4674         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
4675                 c = seconds / mult[i];
4676
4677                 if (c > 0 || (i == 0 && buf == tail))
4678                         tail += snprintf(tail, 40-(tail-buf), "%lu%c", c, spec[i]);
4679
4680                 seconds %= mult[i];
4681         }
4682
4683         return tail;
4684 }
4685
4686 static void sec2str(time_t seconds, char *buf, int rc)
4687 {
4688         char *tail = buf;
4689
4690         if (rc)
4691                 *tail++ = '[';
4692
4693         tail = __sec2str(seconds, tail);
4694
4695         if (rc && tail - buf < 39) {
4696                 *tail++ = ']';
4697                 *tail++ = 0;
4698         }
4699 }
4700
4701 static void diff2str(time_t seconds, char *buf, time_t now)
4702 {
4703
4704         buf[0] = 0;
4705         if (!seconds)
4706                 return;
4707         if (seconds <= now) {
4708                 strcpy(buf, "none");
4709                 return;
4710         }
4711         __sec2str(seconds - now, buf);
4712 }
4713
4714 static void print_quota_title(char *name, struct if_quotactl *qctl,
4715                               bool human_readable)
4716 {
4717         printf("Disk quotas for %s %s (%cid %u):\n",
4718                qtype_name(qctl->qc_type), name,
4719                *qtype_name(qctl->qc_type), qctl->qc_id);
4720         printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
4721                "Filesystem", human_readable ? "used" : "kbytes",
4722                "quota", "limit", "grace",
4723                "files", "quota", "limit", "grace");
4724 }
4725
4726 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
4727 {
4728         if (!h) {
4729                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
4730         } else {
4731                 if (num >> 40)
4732                         snprintf(buf, buflen, "%5.4gP",
4733                                  (double)num / ((__u64)1 << 40));
4734                 else if (num >> 30)
4735                         snprintf(buf, buflen, "%5.4gT",
4736                                  (double)num / (1 << 30));
4737                 else if (num >> 20)
4738                         snprintf(buf, buflen, "%5.4gG",
4739                                  (double)num / (1 << 20));
4740                 else if (num >> 10)
4741                         snprintf(buf, buflen, "%5.4gM",
4742                                  (double)num / (1 << 10));
4743                 else
4744                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
4745         }
4746 }
4747
4748 #define STRBUF_LEN      32
4749 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
4750                         int rc, bool h)
4751 {
4752         time_t now;
4753
4754         time(&now);
4755
4756         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA) {
4757                 int bover = 0, iover = 0;
4758                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
4759                 char numbuf[3][STRBUF_LEN];
4760                 char timebuf[40];
4761                 char strbuf[STRBUF_LEN];
4762
4763                 if (dqb->dqb_bhardlimit &&
4764                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
4765                         bover = 1;
4766                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
4767                         if (dqb->dqb_btime > now) {
4768                                 bover = 2;
4769                         } else {
4770                                 bover = 3;
4771                         }
4772                 }
4773
4774                 if (dqb->dqb_ihardlimit &&
4775                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
4776                         iover = 1;
4777                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
4778                         if (dqb->dqb_itime > now) {
4779                                 iover = 2;
4780                         } else {
4781                                 iover = 3;
4782                         }
4783                 }
4784
4785
4786                 if (strlen(mnt) > 15)
4787                         printf("%s\n%15s", mnt, "");
4788                 else
4789                         printf("%15s", mnt);
4790
4791                 if (bover)
4792                         diff2str(dqb->dqb_btime, timebuf, now);
4793
4794                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
4795                            strbuf, sizeof(strbuf), h);
4796                 if (rc == -EREMOTEIO)
4797                         sprintf(numbuf[0], "%s*", strbuf);
4798                 else
4799                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
4800                                 "%s" : "[%s]", strbuf);
4801
4802                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
4803                 if (type == QC_GENERAL)
4804                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
4805                                 "%s" : "[%s]", strbuf);
4806                 else
4807                         sprintf(numbuf[1], "%s", "-");
4808
4809                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
4810                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
4811                         "%s" : "[%s]", strbuf);
4812
4813                 printf(" %7s%c %6s %7s %7s",
4814                        numbuf[0], bover ? '*' : ' ', numbuf[1],
4815                        numbuf[2], bover > 1 ? timebuf : "-");
4816
4817                 if (iover)
4818                         diff2str(dqb->dqb_itime, timebuf, now);
4819
4820                 sprintf(numbuf[0], (dqb->dqb_valid & QIF_INODES) ?
4821                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_curinodes);
4822
4823                 if (type == QC_GENERAL)
4824                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
4825                                 "%ju" : "[%ju]",
4826                                 (uintmax_t)dqb->dqb_isoftlimit);
4827                 else
4828                         sprintf(numbuf[1], "%s", "-");
4829
4830                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
4831                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
4832
4833                 if (type != QC_OSTIDX)
4834                         printf(" %7s%c %6s %7s %7s",
4835                                numbuf[0], iover ? '*' : ' ', numbuf[1],
4836                                numbuf[2], iover > 1 ? timebuf : "-");
4837                 else
4838                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
4839                 printf("\n");
4840
4841         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
4842                    qctl->qc_cmd == Q_GETOINFO) {
4843                 char bgtimebuf[40];
4844                 char igtimebuf[40];
4845
4846                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
4847                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
4848                 printf("Block grace time: %s; Inode grace time: %s\n",
4849                        bgtimebuf, igtimebuf);
4850         }
4851 }
4852
4853 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
4854                            bool h, __u64 *total)
4855 {
4856         int rc = 0, rc1 = 0, count = 0;
4857         __u32 valid = qctl->qc_valid;
4858
4859         rc = llapi_get_obd_count(mnt, &count, is_mdt);
4860         if (rc) {
4861                 fprintf(stderr, "can not get %s count: %s\n",
4862                         is_mdt ? "mdt": "ost", strerror(-rc));
4863                 return rc;
4864         }
4865
4866         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
4867                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
4868                 rc = llapi_quotactl(mnt, qctl);
4869                 if (rc) {
4870                         /* It is remote client case. */
4871                         if (rc == -EOPNOTSUPP) {
4872                                 rc = 0;
4873                                 goto out;
4874                         }
4875
4876                         if (!rc1)
4877                                 rc1 = rc;
4878                         fprintf(stderr, "quotactl %s%d failed.\n",
4879                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
4880                         continue;
4881                 }
4882
4883                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
4884                             qctl->qc_valid, 0, h);
4885                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
4886                                    qctl->qc_dqblk.dqb_bhardlimit;
4887         }
4888 out:
4889         qctl->qc_valid = valid;
4890         return rc ? : rc1;
4891 }
4892
4893 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
4894                            int verbose, int quiet, bool human_readable)
4895 {
4896         int rc1 = 0, rc2 = 0, rc3 = 0;
4897         char *obd_type = (char *)qctl->obd_type;
4898         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
4899         __u64 total_ialloc = 0, total_balloc = 0;
4900         int inacc;
4901
4902         rc1 = llapi_quotactl(mnt, qctl);
4903         if (rc1 < 0) {
4904                 switch (rc1) {
4905                 case -ESRCH:
4906                         fprintf(stderr, "%s quotas are not enabled.\n",
4907                                 qtype_name(qctl->qc_type));
4908                         goto out;
4909                 case -EPERM:
4910                         fprintf(stderr, "Permission denied.\n");
4911                 case -ENODEV:
4912                 case -ENOENT:
4913                         /* We already got error message. */
4914                         goto out;
4915                 default:
4916                         fprintf(stderr, "Unexpected quotactl error: %s\n",
4917                                 strerror(-rc1));
4918                 }
4919         }
4920
4921         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA && !quiet)
4922                 print_quota_title(name, qctl, human_readable);
4923
4924         if (rc1 && *obd_type)
4925                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
4926
4927         if (qctl->qc_valid != QC_GENERAL)
4928                 mnt = "";
4929
4930         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA) &&
4931                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
4932                  (QIF_LIMITS|QIF_USAGE));
4933
4934         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable);
4935
4936         if (qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
4937             verbose) {
4938                 char strbuf[STRBUF_LEN];
4939
4940                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
4941                                       &total_ialloc);
4942                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
4943                                       &total_balloc);
4944                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
4945                            human_readable);
4946                 printf("Total allocated inode limit: %ju, total "
4947                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
4948                        strbuf);
4949         }
4950
4951         if (rc1 || rc2 || rc3 || inacc)
4952                 printf("Some errors happened when getting quota info. "
4953                        "Some devices may be not working or deactivated. "
4954                        "The data in \"[]\" is inaccurate.\n");
4955 out:
4956         return rc1;
4957
4958 }
4959
4960 static int lfs_project(int argc, char **argv)
4961 {
4962         int ret = 0, err = 0, c, i;
4963         struct project_handle_control phc = { 0 };
4964         enum lfs_project_ops_t op;
4965
4966         phc.newline = true;
4967         phc.assign_projid = false;
4968         /* default action */
4969         op = LFS_PROJECT_LIST;
4970
4971         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
4972                 switch (c) {
4973                 case 'c':
4974                         if (op != LFS_PROJECT_LIST) {
4975                                 fprintf(stderr,
4976                                         "%s: cannot specify '-c' '-C' '-s' together\n",
4977                                         progname);
4978                                 return CMD_HELP;
4979                         }
4980
4981                         op = LFS_PROJECT_CHECK;
4982                         break;
4983                 case 'C':
4984                         if (op != LFS_PROJECT_LIST) {
4985                                 fprintf(stderr,
4986                                         "%s: cannot specify '-c' '-C' '-s' together\n",
4987                                         progname);
4988                                 return CMD_HELP;
4989                         }
4990
4991                         op = LFS_PROJECT_CLEAR;
4992                         break;
4993                 case 's':
4994                         if (op != LFS_PROJECT_LIST) {
4995                                 fprintf(stderr,
4996                                         "%s: cannot specify '-c' '-C' '-s' together\n",
4997                                         progname);
4998                                 return CMD_HELP;
4999                         }
5000
5001                         phc.set_inherit = true;
5002                         op = LFS_PROJECT_SET;
5003                         break;
5004                 case 'd':
5005                         phc.dironly = true;
5006                         break;
5007                 case 'k':
5008                         phc.keep_projid = true;
5009                         break;
5010                 case 'r':
5011                         phc.recursive = true;
5012                         break;
5013                 case 'p':
5014                         phc.projid = strtoul(optarg, NULL, 0);
5015                         phc.assign_projid = true;
5016
5017                         break;
5018                 case '0':
5019                         phc.newline = false;
5020                         break;
5021                 default:
5022                         fprintf(stderr, "%s: invalid option '%c'\n",
5023                                 progname, optopt);
5024                         return CMD_HELP;
5025                 }
5026         }
5027
5028         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
5029                 op = LFS_PROJECT_SET;
5030                 phc.set_projid = true;
5031         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
5032                 phc.set_projid = true;
5033         }
5034
5035         switch (op) {
5036         case LFS_PROJECT_CHECK:
5037                 if (phc.keep_projid) {
5038                         fprintf(stderr,
5039                                 "%s: '-k' is useless together with '-c'\n",
5040                                 progname);
5041                         return CMD_HELP;
5042                 }
5043                 break;
5044         case LFS_PROJECT_CLEAR:
5045                 if (!phc.newline) {
5046                         fprintf(stderr,
5047                                 "%s: '-0' is useless together with '-C'\n",
5048                                 progname);
5049                         return CMD_HELP;
5050                 }
5051                 if (phc.assign_projid) {
5052                         fprintf(stderr,
5053                                 "%s: '-p' is useless together with '-C'\n",
5054                                 progname);
5055                         return CMD_HELP;
5056                 }
5057                 break;
5058         case LFS_PROJECT_SET:
5059                 if (!phc.newline) {
5060                         fprintf(stderr,
5061                                 "%s: '-0' is useless together with '-s'\n",
5062                                 progname);
5063                         return CMD_HELP;
5064                 }
5065                 if (phc.keep_projid) {
5066                         fprintf(stderr,
5067                                 "%s: '-k' is useless together with '-s'\n",
5068                                 progname);
5069                         return CMD_HELP;
5070                 }
5071                 break;
5072         default:
5073                 if (!phc.newline) {
5074                         fprintf(stderr,
5075                                 "%s: '-0' is useless for list operations\n",
5076                                 progname);
5077                         return CMD_HELP;
5078                 }
5079                 break;
5080         }
5081
5082         argv += optind;
5083         argc -= optind;
5084         if (argc == 0) {
5085                 fprintf(stderr, "%s: missing file or directory target(s)\n",
5086                         progname);
5087                 return CMD_HELP;
5088         }
5089
5090         for (i = 0; i < argc; i++) {
5091                 switch (op) {
5092                 case LFS_PROJECT_CHECK:
5093                         err = lfs_project_check(argv[i], &phc);
5094                         break;
5095                 case LFS_PROJECT_LIST:
5096                         err = lfs_project_list(argv[i], &phc);
5097                         break;
5098                 case LFS_PROJECT_CLEAR:
5099                         err = lfs_project_clear(argv[i], &phc);
5100                         break;
5101                 case LFS_PROJECT_SET:
5102                         err = lfs_project_set(argv[i], &phc);
5103                         break;
5104                 default:
5105                         break;
5106                 }
5107                 if (err && !ret)
5108                         ret = err;
5109         }
5110
5111         return ret;
5112 }
5113
5114 static int lfs_quota(int argc, char **argv)
5115 {
5116         int c;
5117         char *mnt, *name = NULL;
5118         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
5119                                     .qc_type = ALLQUOTA };
5120         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
5121         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
5122         char *endptr;
5123         __u32 valid = QC_GENERAL, idx = 0;
5124         bool human_readable = false;
5125         int qtype;
5126
5127         while ((c = getopt(argc, argv, "gi:I:o:pqtuvh")) != -1) {
5128                 switch (c) {
5129                 case 'u':
5130                         qtype = USRQUOTA;
5131                         goto quota_type;
5132                 case 'g':
5133                         qtype = GRPQUOTA;
5134                         goto quota_type;
5135                 case 'p':
5136                         qtype = PRJQUOTA;
5137 quota_type:
5138                         if (qctl.qc_type != ALLQUOTA) {
5139                                 fprintf(stderr,
5140                                         "%s quota: only one of -u, -g, or -p may be specified\n",
5141                                         progname);
5142                                 return CMD_HELP;
5143                         }
5144                         qctl.qc_type = qtype;
5145                         break;
5146                 case 't':
5147                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
5148                         break;
5149                 case 'o':
5150                         valid = qctl.qc_valid = QC_UUID;
5151                         strlcpy(obd_uuid, optarg, sizeof(qctl.obd_uuid));
5152                         break;
5153                 case 'i':
5154                         valid = qctl.qc_valid = QC_MDTIDX;
5155                         idx = qctl.qc_idx = atoi(optarg);
5156                         if (idx == 0 && *optarg != '0') {
5157                                 fprintf(stderr,
5158                                         "%s quota: invalid MDT index '%s'\n",
5159                                         progname, optarg);
5160                                 return CMD_HELP;
5161                         }
5162                         break;
5163                 case 'I':
5164                         valid = qctl.qc_valid = QC_OSTIDX;
5165                         idx = qctl.qc_idx = atoi(optarg);
5166                         if (idx == 0 && *optarg != '0') {
5167                                 fprintf(stderr,
5168                                         "%s quota: invalid OST index '%s'\n",
5169                                         progname, optarg);
5170                                 return CMD_HELP;
5171                         }
5172                         break;
5173                 case 'v':
5174                         verbose = 1;
5175                         break;
5176                 case 'q':
5177                         quiet = 1;
5178                         break;
5179                 case 'h':
5180                         human_readable = true;
5181                         break;
5182                 default:
5183                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
5184                                 progname, argv[optind - 1]);
5185                         return CMD_HELP;
5186                 }
5187         }
5188
5189         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
5190         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
5191             optind == argc - 1) {
5192
5193                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
5194                 qctl.qc_valid = valid;
5195                 qctl.qc_idx = idx;
5196
5197                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
5198                         qctl.qc_type = qtype;
5199                         if (qtype == USRQUOTA) {
5200                                 qctl.qc_id = geteuid();
5201                                 rc = uid2name(&name, qctl.qc_id);
5202                         } else {
5203                                 qctl.qc_id = getegid();
5204                                 rc = gid2name(&name, qctl.qc_id);
5205                         }
5206                         if (rc)
5207                                 name = "<unknown>";
5208                         mnt = argv[optind];
5209                         rc1 = get_print_quota(mnt, name, &qctl, verbose, quiet,
5210                                               human_readable);
5211                         if (rc1 && !rc)
5212                                 rc = rc1;
5213                 }
5214         /* lfs quota -u username /path/to/lustre/mount */
5215         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
5216                 /* options should be followed by u/g-name and mntpoint */
5217                 if (optind + 2 != argc || qctl.qc_type == ALLQUOTA) {
5218                         fprintf(stderr,
5219                                 "%s quota: name and mount point must be specified\n",
5220                                 progname);
5221                         return CMD_HELP;
5222                 }
5223
5224                 name = argv[optind++];
5225                 switch (qctl.qc_type) {
5226                 case USRQUOTA:
5227                         rc = name2uid(&qctl.qc_id, name);
5228                         break;
5229                 case GRPQUOTA:
5230                         rc = name2gid(&qctl.qc_id, name);
5231                         break;
5232                 case PRJQUOTA:
5233                         rc = name2projid(&qctl.qc_id, name);
5234                         break;
5235                 default:
5236                         rc = -ENOTSUP;
5237                         break;
5238                 }
5239                 if (rc) {
5240                         qctl.qc_id = strtoul(name, &endptr, 10);
5241                         if (*endptr != '\0') {
5242                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
5243                                         progname, name);
5244                                 return CMD_HELP;
5245                         }
5246                 }
5247                 mnt = argv[optind];
5248                 rc = get_print_quota(mnt, name, &qctl, verbose, quiet,
5249                                      human_readable);
5250         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
5251                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
5252                         progname);
5253                 return CMD_HELP;
5254         }
5255
5256         return rc;
5257 }
5258 #endif /* HAVE_SYS_QUOTA_H! */
5259
5260 static int flushctx_ioctl(char *mp)
5261 {
5262         int fd, rc;
5263
5264         fd = open(mp, O_RDONLY);
5265         if (fd == -1) {
5266                 fprintf(stderr, "flushctx: error open %s: %s\n",
5267                         mp, strerror(errno));
5268                 return -1;
5269         }
5270
5271         rc = ioctl(fd, LL_IOC_FLUSHCTX);
5272         if (rc == -1)
5273                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
5274                         mp, strerror(errno));
5275
5276         close(fd);
5277         return rc;
5278 }
5279
5280 static int lfs_flushctx(int argc, char **argv)
5281 {
5282         int     kdestroy = 0, c;
5283         char    mntdir[PATH_MAX] = {'\0'};
5284         int     index = 0;
5285         int     rc = 0;
5286
5287         while ((c = getopt(argc, argv, "k")) != -1) {
5288                 switch (c) {
5289                 case 'k':
5290                         kdestroy = 1;
5291                         break;
5292                 default:
5293                         fprintf(stderr, "error: %s: option '-%c' "
5294                                         "unrecognized\n", argv[0], c);
5295                         return CMD_HELP;
5296                 }
5297         }
5298
5299         if (kdestroy) {
5300             if ((rc = system("kdestroy > /dev/null")) != 0) {
5301                 rc = WEXITSTATUS(rc);
5302                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
5303             }
5304         }
5305
5306         if (optind >= argc) {
5307                 /* flush for all mounted lustre fs. */
5308                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
5309                         /* Check if we have a mount point */
5310                         if (mntdir[0] == '\0')
5311                                 continue;
5312
5313                         if (flushctx_ioctl(mntdir))
5314                                 rc = -1;
5315
5316                         mntdir[0] = '\0'; /* avoid matching in next loop */
5317                 }
5318         } else {
5319                 /* flush fs as specified */
5320                 while (optind < argc) {
5321                         if (flushctx_ioctl(argv[optind++]))
5322                                 rc = -1;
5323                 }
5324         }
5325         return rc;
5326 }
5327
5328 static int lfs_cp(int argc, char **argv)
5329 {
5330         fprintf(stderr, "remote client copy file(s).\n"
5331                 "obsolete, does not support it anymore.\n");
5332         return 0;
5333 }
5334
5335 static int lfs_ls(int argc, char **argv)
5336 {
5337         fprintf(stderr, "remote client lists directory contents.\n"
5338                 "obsolete, does not support it anymore.\n");
5339         return 0;
5340 }
5341
5342 static int lfs_changelog(int argc, char **argv)
5343 {
5344         void *changelog_priv;
5345         struct changelog_rec *rec;
5346         long long startrec = 0, endrec = 0;
5347         char *mdd;
5348         struct option long_opts[] = {
5349                 { .val = 'f', .name = "follow", .has_arg = no_argument },
5350                 { .name = NULL } };
5351         char short_opts[] = "f";
5352         int rc, follow = 0;
5353
5354         while ((rc = getopt_long(argc, argv, short_opts,
5355                 long_opts, NULL)) != -1) {
5356                 switch (rc) {
5357                 case 'f':
5358                         follow++;
5359                         break;
5360                 case '?':
5361                         return CMD_HELP;
5362                 default:
5363                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
5364                                 argv[0], argv[optind - 1]);
5365                         return CMD_HELP;
5366                 }
5367         }
5368         if (optind >= argc)
5369                 return CMD_HELP;
5370
5371         mdd = argv[optind++];
5372         if (argc > optind)
5373                 startrec = strtoll(argv[optind++], NULL, 10);
5374         if (argc > optind)
5375                 endrec = strtoll(argv[optind++], NULL, 10);
5376
5377         rc = llapi_changelog_start(&changelog_priv,
5378                                    CHANGELOG_FLAG_BLOCK |
5379                                    CHANGELOG_FLAG_JOBID |
5380                                    CHANGELOG_FLAG_EXTRA_FLAGS |
5381                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
5382                                    mdd, startrec);
5383         if (rc < 0) {
5384                 fprintf(stderr, "Can't start changelog: %s\n",
5385                         strerror(errno = -rc));
5386                 return rc;
5387         }
5388
5389         rc = llapi_changelog_set_xflags(changelog_priv,
5390                                         CHANGELOG_EXTRA_FLAG_UIDGID);
5391         if (rc < 0) {
5392                 fprintf(stderr, "Can't set xflags for changelog: %s\n",
5393                         strerror(errno = -rc));
5394                 return rc;
5395         }
5396
5397         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
5398                 time_t secs;
5399                 struct tm ts;
5400
5401                 if (endrec && rec->cr_index > endrec) {
5402                         llapi_changelog_free(&rec);
5403                         break;
5404                 }
5405                 if (rec->cr_index < startrec) {
5406                         llapi_changelog_free(&rec);
5407                         continue;
5408                 }
5409
5410                 secs = rec->cr_time >> 30;
5411                 gmtime_r(&secs, &ts);
5412                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
5413                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
5414                        changelog_type2str(rec->cr_type),
5415                        ts.tm_hour, ts.tm_min, ts.tm_sec,
5416                        (int)(rec->cr_time & ((1 << 30) - 1)),
5417                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
5418                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
5419
5420                 if (rec->cr_flags & CLF_JOBID) {
5421                         struct changelog_ext_jobid *jid =
5422                                 changelog_rec_jobid(rec);
5423
5424                         if (jid->cr_jobid[0] != '\0')
5425                                 printf(" j=%s", jid->cr_jobid);
5426                 }
5427
5428                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
5429                         struct changelog_ext_extra_flags *ef =
5430                                 changelog_rec_extra_flags(rec);
5431
5432                         printf(" ef=0x%llx", ef->cr_extra_flags);
5433
5434                         if (ef->cr_extra_flags & CLFE_UIDGID) {
5435                                 struct changelog_ext_uidgid *uidgid =
5436                                         changelog_rec_uidgid(rec);
5437
5438                                 printf(" u=%llu:%llu",
5439                                        uidgid->cr_uid, uidgid->cr_gid);
5440                         }
5441                 }
5442
5443                 if (rec->cr_namelen)
5444                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
5445                                rec->cr_namelen, changelog_rec_name(rec));
5446
5447                 if (rec->cr_flags & CLF_RENAME) {
5448                         struct changelog_ext_rename *rnm =
5449                                 changelog_rec_rename(rec);
5450
5451                         if (!fid_is_zero(&rnm->cr_sfid))
5452                                 printf(" s="DFID" sp="DFID" %.*s",
5453                                        PFID(&rnm->cr_sfid),
5454                                        PFID(&rnm->cr_spfid),
5455                                        (int)changelog_rec_snamelen(rec),
5456                                        changelog_rec_sname(rec));
5457                 }
5458                 printf("\n");
5459
5460                 llapi_changelog_free(&rec);
5461         }
5462
5463         llapi_changelog_fini(&changelog_priv);
5464
5465         if (rc < 0)
5466                 fprintf(stderr, "Changelog: %s\n", strerror(errno = -rc));
5467
5468         return (rc == 1 ? 0 : rc);
5469 }
5470
5471 static int lfs_changelog_clear(int argc, char **argv)
5472 {
5473         long long endrec;
5474         int rc;
5475
5476         if (argc != 4)
5477                 return CMD_HELP;
5478
5479         endrec = strtoll(argv[3], NULL, 10);
5480
5481         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
5482
5483         if (rc == -EINVAL)
5484                 fprintf(stderr, "%s: record out of range: %llu\n",
5485                         argv[0], endrec);
5486         else if (rc == -ENOENT)
5487                 fprintf(stderr, "%s: no changelog user: %s\n",
5488                         argv[0], argv[2]);
5489         else if (rc)
5490                 fprintf(stderr, "%s error: %s\n", argv[0],
5491                         strerror(-rc));
5492
5493         if (rc)
5494                 errno = -rc;
5495
5496         return rc;
5497 }
5498
5499 static int lfs_fid2path(int argc, char **argv)
5500 {
5501         struct option long_opts[] = {
5502                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
5503                 { .val = 'l',   .name = "link", .has_arg = required_argument },
5504                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
5505                 { .name = NULL } };
5506         char  short_opts[] = "cl:r:";
5507         char *device, *fid, *path;
5508         long long recno = -1;
5509         int linkno = -1;
5510         int lnktmp;
5511         int printcur = 0;
5512         int rc = 0;
5513
5514         while ((rc = getopt_long(argc, argv, short_opts,
5515                 long_opts, NULL)) != -1) {
5516                 switch (rc) {
5517                 case 'c':
5518                         printcur++;
5519                         break;
5520                 case 'l':
5521                         linkno = strtol(optarg, NULL, 10);
5522                         break;
5523                 case 'r':
5524                         recno = strtoll(optarg, NULL, 10);
5525                         break;
5526                 case '?':
5527                         return CMD_HELP;
5528                 default:
5529                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
5530                                 argv[0], argv[optind - 1]);
5531                         return CMD_HELP;
5532                 }
5533         }
5534
5535         if (argc < 3)
5536                 return CMD_HELP;
5537
5538         device = argv[optind++];
5539         path = calloc(1, PATH_MAX);
5540         if (path == NULL) {
5541                 fprintf(stderr, "error: Not enough memory\n");
5542                 return -errno;
5543         }
5544
5545         rc = 0;
5546         while (optind < argc) {
5547                 fid = argv[optind++];
5548
5549                 lnktmp = (linkno >= 0) ? linkno : 0;
5550                 while (1) {
5551                         int oldtmp = lnktmp;
5552                         long long rectmp = recno;
5553                         int rc2;
5554                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
5555                                              &rectmp, &lnktmp);
5556                         if (rc2 < 0) {
5557                                 fprintf(stderr, "%s: error on FID %s: %s\n",
5558                                         argv[0], fid, strerror(errno = -rc2));
5559                                 if (rc == 0)
5560                                         rc = rc2;
5561                                 break;
5562                         }
5563
5564                         if (printcur)
5565                                 fprintf(stdout, "%lld ", rectmp);
5566                         if (device[0] == '/') {
5567                                 fprintf(stdout, "%s", device);
5568                                 if (device[strlen(device) - 1] != '/')
5569                                         fprintf(stdout, "/");
5570                         } else if (path[0] == '\0') {
5571                                 fprintf(stdout, "/");
5572                         }
5573                         fprintf(stdout, "%s\n", path);
5574
5575                         if (linkno >= 0)
5576                                 /* specified linkno */
5577                                 break;
5578                         if (oldtmp == lnktmp)
5579                                 /* no more links */
5580                                 break;
5581                 }
5582         }
5583
5584         free(path);
5585         return rc;
5586 }
5587
5588 static int lfs_path2fid(int argc, char **argv)
5589 {
5590         struct option long_opts[] = {
5591                 { .val = 'p', .name = "parents", .has_arg = no_argument },
5592                 { .name = NULL } };
5593         char            **path;
5594         const char        short_opts[] = "p";
5595         const char       *sep = "";
5596         struct lu_fid     fid;
5597         int               rc = 0;
5598         bool              show_parents = false;
5599
5600         while ((rc = getopt_long(argc, argv, short_opts,
5601                                  long_opts, NULL)) != -1) {
5602                 switch (rc) {
5603                 case 'p':
5604                         show_parents = true;
5605                         break;
5606                 default:
5607                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
5608                                 argv[0], argv[optind - 1]);
5609                         return CMD_HELP;
5610                 }
5611         }
5612
5613         if (optind > argc - 1)
5614                 return CMD_HELP;
5615         else if (optind < argc - 1)
5616                 sep = ": ";
5617
5618         rc = 0;
5619         for (path = argv + optind; *path != NULL; path++) {
5620                 int err = 0;
5621                 if (!show_parents) {
5622                         err = llapi_path2fid(*path, &fid);
5623                         if (!err)
5624                                 printf("%s%s"DFID"\n",
5625                                        *sep != '\0' ? *path : "", sep,
5626                                        PFID(&fid));
5627                 } else {
5628                         char            name[NAME_MAX + 1];
5629                         unsigned int    linkno = 0;
5630
5631                         while ((err = llapi_path2parent(*path, linkno, &fid,
5632                                                 name, sizeof(name))) == 0) {
5633                                 if (*sep != '\0' && linkno == 0)
5634                                         printf("%s%s", *path, sep);
5635
5636                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
5637                                        PFID(&fid), name);
5638                                 linkno++;
5639                         }
5640
5641                         /* err == -ENODATA is end-of-loop */
5642                         if (linkno > 0 && err == -ENODATA) {
5643                                 printf("\n");
5644                                 err = 0;
5645                         }
5646                 }
5647
5648                 if (err) {
5649                         fprintf(stderr, "%s: can't get %sfid for %s: %s\n",
5650                                 argv[0], show_parents ? "parent " : "", *path,
5651                                 strerror(-err));
5652                         if (rc == 0) {
5653                                 rc = err;
5654                                 errno = -err;
5655                         }
5656                 }
5657         }
5658
5659         return rc;
5660 }
5661
5662 static int lfs_data_version(int argc, char **argv)
5663 {
5664         char *path;
5665         __u64 data_version;
5666         int fd;
5667         int rc;
5668         int c;
5669         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
5670
5671         if (argc < 2)
5672                 return CMD_HELP;
5673
5674         while ((c = getopt(argc, argv, "nrw")) != -1) {
5675                 switch (c) {
5676                 case 'n':
5677                         data_version_flags = 0;
5678                         break;
5679                 case 'r':
5680                         data_version_flags |= LL_DV_RD_FLUSH;
5681                         break;
5682                 case 'w':
5683                         data_version_flags |= LL_DV_WR_FLUSH;
5684                         break;
5685                 default:
5686                         return CMD_HELP;
5687                 }
5688         }
5689         if (optind == argc)
5690                 return CMD_HELP;
5691
5692         path = argv[optind];
5693         fd = open(path, O_RDONLY);
5694         if (fd < 0)
5695                 err(errno, "cannot open file %s", path);
5696
5697         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
5698         if (rc < 0)
5699                 err(errno, "cannot get version for %s", path);
5700         else
5701                 printf("%ju" "\n", (uintmax_t)data_version);
5702
5703         close(fd);
5704         return rc;
5705 }
5706
5707 static int lfs_hsm_state(int argc, char **argv)
5708 {
5709         int rc;
5710         int i = 1;
5711         char *path;
5712         struct hsm_user_state hus;
5713
5714         if (argc < 2)
5715                 return CMD_HELP;
5716
5717         do {
5718                 path = argv[i];
5719
5720                 rc = llapi_hsm_state_get(path, &hus);
5721                 if (rc) {
5722                         fprintf(stderr, "can't get hsm state for %s: %s\n",
5723                                 path, strerror(errno = -rc));
5724                         return rc;
5725                 }
5726
5727                 /* Display path name and status flags */
5728                 printf("%s: (0x%08x)", path, hus.hus_states);
5729
5730                 if (hus.hus_states & HS_RELEASED)
5731                         printf(" released");
5732                 if (hus.hus_states & HS_EXISTS)
5733                         printf(" exists");
5734                 if (hus.hus_states & HS_DIRTY)
5735                         printf(" dirty");
5736                 if (hus.hus_states & HS_ARCHIVED)
5737                         printf(" archived");
5738                 /* Display user-settable flags */
5739                 if (hus.hus_states & HS_NORELEASE)
5740                         printf(" never_release");
5741                 if (hus.hus_states & HS_NOARCHIVE)
5742                         printf(" never_archive");
5743                 if (hus.hus_states & HS_LOST)
5744                         printf(" lost_from_hsm");
5745
5746                 if (hus.hus_archive_id != 0)
5747                         printf(", archive_id:%d", hus.hus_archive_id);
5748                 printf("\n");
5749
5750         } while (++i < argc);
5751
5752         return 0;
5753 }
5754
5755 #define LFS_HSM_SET   0
5756 #define LFS_HSM_CLEAR 1
5757
5758 /**
5759  * Generic function to set or clear HSM flags.
5760  * Used by hsm_set and hsm_clear.
5761  *
5762  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
5763  */
5764 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
5765 {
5766         struct option long_opts[] = {
5767         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
5768         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
5769         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
5770         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
5771         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
5772         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
5773         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
5774         { .name = NULL } };
5775         char short_opts[] = "lraAdei:";
5776         __u64 mask = 0;
5777         int c, rc;
5778         char *path;
5779         __u32 archive_id = 0;
5780         char *end = NULL;
5781
5782         if (argc < 3)
5783                 return CMD_HELP;
5784
5785         while ((c = getopt_long(argc, argv, short_opts,
5786                                 long_opts, NULL)) != -1) {
5787                 switch (c) {
5788                 case 'l':
5789                         mask |= HS_LOST;
5790                         break;
5791                 case 'a':
5792                         mask |= HS_NOARCHIVE;
5793                         break;
5794                 case 'A':
5795                         mask |= HS_ARCHIVED;
5796                         break;
5797                 case 'r':
5798                         mask |= HS_NORELEASE;
5799                         break;
5800                 case 'd':
5801                         mask |= HS_DIRTY;
5802                         break;
5803                 case 'e':
5804                         mask |= HS_EXISTS;
5805                         break;
5806                 case 'i':
5807                         archive_id = strtol(optarg, &end, 10);
5808                         if (*end != '\0') {
5809                                 fprintf(stderr, "invalid archive_id: '%s'\n",
5810                                         end);
5811                                 return CMD_HELP;
5812                         }
5813                         break;
5814                 case '?':
5815                         return CMD_HELP;
5816                 default:
5817                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
5818                                 argv[0], argv[optind - 1]);
5819                         return CMD_HELP;
5820                 }
5821         }
5822
5823         /* User should have specified a flag */
5824         if (mask == 0)
5825                 return CMD_HELP;
5826
5827         while (optind < argc) {
5828
5829                 path = argv[optind];
5830
5831                 /* If mode == 0, this means we apply the mask. */
5832                 if (mode == LFS_HSM_SET)
5833                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
5834                 else
5835                         rc = llapi_hsm_state_set(path, 0, mask, 0);
5836
5837                 if (rc != 0) {
5838                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
5839                                 path, strerror(errno = -rc));
5840                         return rc;
5841                 }
5842                 optind++;
5843         }
5844
5845         return 0;
5846 }
5847
5848 static int lfs_hsm_action(int argc, char **argv)
5849 {
5850         int                              rc;
5851         int                              i = 1;
5852         char                            *path;
5853         struct hsm_current_action        hca;
5854         struct hsm_extent                he;
5855         enum hsm_user_action             hua;
5856         enum hsm_progress_states         hps;
5857
5858         if (argc < 2)
5859                 return CMD_HELP;
5860
5861         do {
5862                 path = argv[i];
5863
5864                 rc = llapi_hsm_current_action(path, &hca);
5865                 if (rc) {
5866                         fprintf(stderr, "can't get hsm action for %s: %s\n",
5867                                 path, strerror(errno = -rc));
5868                         return rc;
5869                 }
5870                 he = hca.hca_location;
5871                 hua = hca.hca_action;
5872                 hps = hca.hca_state;
5873
5874                 printf("%s: %s", path, hsm_user_action2name(hua));
5875
5876                 /* Skip file without action */
5877                 if (hca.hca_action == HUA_NONE) {
5878                         printf("\n");
5879                         continue;
5880                 }
5881
5882                 printf(" %s ", hsm_progress_state2name(hps));
5883
5884                 if ((hps == HPS_RUNNING) &&
5885                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
5886                         printf("(%llu bytes moved)\n",
5887                                (unsigned long long)he.length);
5888                 else if ((he.offset + he.length) == LUSTRE_EOF)
5889                         printf("(from %llu to EOF)\n",
5890                                (unsigned long long)he.offset);
5891                 else
5892                         printf("(from %llu to %llu)\n",
5893                                (unsigned long long)he.offset,
5894                                (unsigned long long)(he.offset + he.length));
5895
5896         } while (++i < argc);
5897
5898         return 0;
5899 }
5900
5901 static int lfs_hsm_set(int argc, char **argv)
5902 {
5903         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
5904 }
5905
5906 static int lfs_hsm_clear(int argc, char **argv)
5907 {
5908         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
5909 }
5910
5911 /**
5912  * Check file state and return its fid, to be used by lfs_hsm_request().
5913  *
5914  * \param[in]     file      Path to file to check
5915  * \param[in,out] fid       Pointer to allocated lu_fid struct.
5916  * \param[in,out] last_dev  Pointer to last device id used.
5917  *
5918  * \return 0 on success.
5919  */
5920 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
5921                                 dev_t *last_dev)
5922 {
5923         struct stat     st;
5924         int             rc;
5925
5926         rc = lstat(file, &st);
5927         if (rc) {
5928                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
5929                 return -errno;
5930         }
5931         /* Checking for regular file as archiving as posix copytool
5932          * rejects archiving files other than regular files
5933          */
5934         if (!S_ISREG(st.st_mode)) {
5935                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
5936                 return CMD_HELP;
5937         }
5938         /* A request should be ... */
5939         if (*last_dev != st.st_dev && *last_dev != 0) {
5940                 fprintf(stderr, "All files should be "
5941                         "on the same filesystem: %s\n", file);
5942                 return -EINVAL;
5943         }
5944         *last_dev = st.st_dev;
5945
5946         rc = llapi_path2fid(file, fid);
5947         if (rc) {
5948                 fprintf(stderr, "Cannot read FID of %s: %s\n",
5949                         file, strerror(-rc));
5950                 return rc;
5951         }
5952         return 0;
5953 }
5954
5955 /* Fill an HSM HUR item with a given file name.
5956  *
5957  * If mntpath is set, then the filename is actually a FID, and no
5958  * lookup on the filesystem will be performed.
5959  *
5960  * \param[in]  hur         the user request to fill
5961  * \param[in]  idx         index of the item inside the HUR to fill
5962  * \param[in]  mntpath     mountpoint of Lustre
5963  * \param[in]  fname       filename (if mtnpath is NULL)
5964  *                         or FID (if mntpath is set)
5965  * \param[in]  last_dev    pointer to last device id used
5966  *
5967  * \retval 0 on success
5968  * \retval CMD_HELP or a negative errno on error
5969  */
5970 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
5971                          const char *mntpath, const char *fname,
5972                          dev_t *last_dev)
5973 {
5974         struct hsm_user_item *hui = &hur->hur_user_item[idx];
5975         int rc;
5976
5977         hui->hui_extent.length = -1;
5978
5979         if (mntpath != NULL) {
5980                 if (*fname == '[')
5981                         fname++;
5982                 rc = sscanf(fname, SFID, RFID(&hui->hui_fid));
5983                 if (rc == 3) {
5984                         rc = 0;
5985                 } else {
5986                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
5987                                 fname);
5988                         rc = -EINVAL;
5989                 }
5990         } else {
5991                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
5992         }
5993
5994         if (rc == 0)
5995                 hur->hur_request.hr_itemcount++;
5996
5997         return rc;
5998 }
5999
6000 static int lfs_hsm_request(int argc, char **argv, int action)
6001 {
6002         struct option long_opts[] = {
6003         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
6004         { .val = 'D',   .name = "data",         .has_arg = required_argument },
6005         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
6006         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
6007         { .name = NULL } };
6008         dev_t                    last_dev = 0;
6009         char                     short_opts[] = "l:D:a:m:";
6010         struct hsm_user_request *hur, *oldhur;
6011         int                      c, i;
6012         size_t                   len;
6013         int                      nbfile;
6014         char                    *line = NULL;
6015         char                    *filelist = NULL;
6016         char                     fullpath[PATH_MAX];
6017         char                    *opaque = NULL;
6018         int                      opaque_len = 0;
6019         int                      archive_id = 0;
6020         FILE                    *fp;
6021         int                      nbfile_alloc = 0;
6022         char                    *some_file = NULL;
6023         char                    *mntpath = NULL;
6024         int                      rc;
6025
6026         if (argc < 2)
6027                 return CMD_HELP;
6028
6029         while ((c = getopt_long(argc, argv, short_opts,
6030                                 long_opts, NULL)) != -1) {
6031                 switch (c) {
6032                 case 'l':
6033                         filelist = optarg;
6034                         break;
6035                 case 'D':
6036                         opaque = optarg;
6037                         break;
6038                 case 'a':
6039                         if (action != HUA_ARCHIVE &&
6040                             action != HUA_REMOVE) {
6041                                 fprintf(stderr,
6042                                         "error: -a is supported only "
6043                                         "when archiving or removing\n");
6044                                 return CMD_HELP;
6045                         }
6046                         archive_id = atoi(optarg);
6047                         break;
6048                 case 'm':
6049                         if (some_file == NULL) {
6050                                 mntpath = optarg;
6051                                 some_file = strdup(optarg);
6052                         }
6053                         break;
6054                 case '?':
6055                         return CMD_HELP;
6056                 default:
6057                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
6058                                 argv[0], argv[optind - 1]);
6059                         return CMD_HELP;
6060                 }
6061         }
6062
6063         /* All remaining args are files, so we have at least nbfile */
6064         nbfile = argc - optind;
6065
6066         if ((nbfile == 0) && (filelist == NULL))
6067                 return CMD_HELP;
6068
6069         if (opaque != NULL)
6070                 opaque_len = strlen(opaque);
6071
6072         /* Alloc the request structure with enough place to store all files
6073          * from command line. */
6074         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
6075         if (hur == NULL) {
6076                 fprintf(stderr, "Cannot create the request: %s\n",
6077                         strerror(errno));
6078                 return errno;
6079         }
6080         nbfile_alloc = nbfile;
6081
6082         hur->hur_request.hr_action = action;
6083         hur->hur_request.hr_archive_id = archive_id;
6084         hur->hur_request.hr_flags = 0;
6085
6086         /* All remaining args are files, add them */
6087         if (nbfile != 0 && some_file == NULL)
6088                 some_file = strdup(argv[optind]);
6089
6090         for (i = 0; i < nbfile; i++) {
6091                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
6092                                    &last_dev);
6093                 if (rc)
6094                         goto out_free;
6095         }
6096
6097         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
6098
6099         /* If a filelist was specified, read the filelist from it. */
6100         if (filelist != NULL) {
6101                 fp = fopen(filelist, "r");
6102                 if (fp == NULL) {
6103                         fprintf(stderr, "Cannot read the file list %s: %s\n",
6104                                 filelist, strerror(errno));
6105                         rc = -errno;
6106                         goto out_free;
6107                 }
6108
6109                 while ((rc = getline(&line, &len, fp)) != -1) {
6110                         /* If allocated buffer was too small, get something
6111                          * larger */
6112                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
6113                                 ssize_t size;
6114
6115                                 nbfile_alloc = nbfile_alloc * 2 + 1;
6116                                 oldhur = hur;
6117                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
6118                                                                    opaque_len);
6119                                 if (hur == NULL) {
6120                                         fprintf(stderr, "hsm: cannot allocate "
6121                                                 "the request: %s\n",
6122                                                 strerror(errno));
6123                                         hur = oldhur;
6124                                         rc = -errno;
6125                                         fclose(fp);
6126                                         goto out_free;
6127                                 }
6128                                 size = hur_len(oldhur);
6129                                 if (size < 0) {
6130                                         fprintf(stderr, "hsm: cannot allocate "
6131                                                 "%u files + %u bytes data\n",
6132                                             oldhur->hur_request.hr_itemcount,
6133                                             oldhur->hur_request.hr_data_len);
6134                                         free(hur);
6135                                         hur = oldhur;
6136                                         rc = -E2BIG;
6137                                         fclose(fp);
6138                                         goto out_free;
6139                                 }
6140                                 memcpy(hur, oldhur, size);
6141                                 free(oldhur);
6142                         }
6143
6144                         /* Chop CR */
6145                         if (line[strlen(line) - 1] == '\n')
6146                                 line[strlen(line) - 1] = '\0';
6147
6148                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
6149                                            mntpath, line, &last_dev);
6150                         if (rc) {
6151                                 fclose(fp);
6152                                 goto out_free;
6153                         }
6154
6155                         if (some_file == NULL) {
6156                                 some_file = line;
6157                                 line = NULL;
6158                         }
6159                 }
6160
6161                 rc = fclose(fp);
6162                 free(line);
6163         }
6164
6165         /* If a --data was used, add it to the request */
6166         hur->hur_request.hr_data_len = opaque_len;
6167         if (opaque != NULL)
6168                 memcpy(hur_data(hur), opaque, opaque_len);
6169
6170         /* Send the HSM request */
6171         if (realpath(some_file, fullpath) == NULL) {
6172                 fprintf(stderr, "Could not find path '%s': %s\n",
6173                         some_file, strerror(errno));
6174         }
6175         rc = llapi_hsm_request(fullpath, hur);
6176         if (rc) {
6177                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
6178                         some_file, strerror(-rc));
6179                 goto out_free;
6180         }
6181
6182 out_free:
6183         free(some_file);
6184         free(hur);
6185         return rc;
6186 }
6187
6188 static int lfs_hsm_archive(int argc, char **argv)
6189 {
6190         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
6191 }
6192
6193 static int lfs_hsm_restore(int argc, char **argv)
6194 {
6195         return lfs_hsm_request(argc, argv, HUA_RESTORE);
6196 }
6197
6198 static int lfs_hsm_release(int argc, char **argv)
6199 {
6200         return lfs_hsm_request(argc, argv, HUA_RELEASE);
6201 }
6202
6203 static int lfs_hsm_remove(int argc, char **argv)
6204 {
6205         return lfs_hsm_request(argc, argv, HUA_REMOVE);
6206 }
6207
6208 static int lfs_hsm_cancel(int argc, char **argv)
6209 {
6210         return lfs_hsm_request(argc, argv, HUA_CANCEL);
6211 }
6212
6213 static int lfs_swap_layouts(int argc, char **argv)
6214 {
6215         if (argc != 3)
6216                 return CMD_HELP;
6217
6218         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
6219                                   SWAP_LAYOUTS_KEEP_MTIME |
6220                                   SWAP_LAYOUTS_KEEP_ATIME);
6221 }
6222
6223 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
6224
6225 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
6226
6227 static const char *const lockahead_results[] = {
6228         [LLA_RESULT_SENT] = "Lock request sent",
6229         [LLA_RESULT_DIFFERENT] = "Different matching lock found",
6230         [LLA_RESULT_SAME] = "Matching lock on identical extent found",
6231 };
6232
6233 int lfs_get_mode(const char *string)
6234 {
6235         enum lock_mode_user mode;
6236
6237         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
6238                 if (lock_mode_names[mode] == NULL)
6239                         continue;
6240                 if (strcmp(string, lock_mode_names[mode]) == 0)
6241                         return mode;
6242         }
6243
6244         return -EINVAL;
6245 }
6246
6247 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
6248 {
6249         enum lu_ladvise_type advice;
6250
6251         for (advice = 0;
6252              advice < ARRAY_SIZE(ladvise_names); advice++) {
6253                 if (ladvise_names[advice] == NULL)
6254                         continue;
6255                 if (strcmp(string, ladvise_names[advice]) == 0)
6256                         return advice;
6257         }
6258
6259         return LU_LADVISE_INVALID;
6260 }
6261
6262 static int lfs_ladvise(int argc, char **argv)
6263 {
6264         struct option long_opts[] = {
6265         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
6266         { .val = 'b',   .name = "background",   .has_arg = no_argument },
6267         { .val = 'e',   .name = "end",          .has_arg = required_argument },
6268         { .val = 'l',   .name = "length",       .has_arg = required_argument },
6269         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
6270         { .val = 's',   .name = "start",        .has_arg = required_argument },
6271         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
6272         { .name = NULL } };
6273         char                     short_opts[] = "a:be:l:m:s:u";
6274         int                      c;
6275         int                      rc = 0;
6276         const char              *path;
6277         int                      fd;
6278         struct llapi_lu_ladvise  advice;
6279         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
6280         unsigned long long       start = 0;
6281         unsigned long long       end = LUSTRE_EOF;
6282         unsigned long long       length = 0;
6283         unsigned long long       size_units;
6284         unsigned long long       flags = 0;
6285         int                      mode = 0;
6286
6287         optind = 0;
6288         while ((c = getopt_long(argc, argv, short_opts,
6289                                 long_opts, NULL)) != -1) {
6290                 switch (c) {
6291                 case 'a':
6292                         advice_type = lfs_get_ladvice(optarg);
6293                         if (advice_type == LU_LADVISE_INVALID) {
6294                                 fprintf(stderr, "%s: invalid advice type "
6295                                         "'%s'\n", argv[0], optarg);
6296                                 fprintf(stderr, "Valid types:");
6297
6298                                 for (advice_type = 0;
6299                                      advice_type < ARRAY_SIZE(ladvise_names);
6300                                      advice_type++) {
6301                                         if (ladvise_names[advice_type] == NULL)
6302                                                 continue;
6303                                         fprintf(stderr, " %s",
6304                                                 ladvise_names[advice_type]);
6305                                 }
6306                                 fprintf(stderr, "\n");
6307
6308                                 return CMD_HELP;
6309                         }
6310                         break;
6311                 case 'b':
6312                         flags |= LF_ASYNC;
6313                         break;
6314                 case 'u':
6315                         flags |= LF_UNSET;
6316                         break;
6317                 case 'e':
6318                         size_units = 1;
6319                         rc = llapi_parse_size(optarg, &end,
6320                                               &size_units, 0);
6321                         if (rc) {
6322                                 fprintf(stderr, "%s: bad end offset '%s'\n",
6323                                         argv[0], optarg);
6324                                 return CMD_HELP;
6325                         }
6326                         break;
6327                 case 's':
6328                         size_units = 1;
6329                         rc = llapi_parse_size(optarg, &start,
6330                                               &size_units, 0);
6331                         if (rc) {
6332                                 fprintf(stderr, "%s: bad start offset "
6333                                         "'%s'\n", argv[0], optarg);
6334                                 return CMD_HELP;
6335                         }
6336                         break;
6337                 case 'l':
6338                         size_units = 1;
6339                         rc = llapi_parse_size(optarg, &length,
6340                                               &size_units, 0);
6341                         if (rc) {
6342                                 fprintf(stderr, "%s: bad length '%s'\n",
6343                                         argv[0], optarg);
6344                                 return CMD_HELP;
6345                         }
6346                         break;
6347                 case 'm':
6348                         mode = lfs_get_mode(optarg);
6349                         if (mode < 0) {
6350                                 fprintf(stderr, "%s: bad mode '%s', valid "
6351                                                  "modes are READ or WRITE\n",
6352                                         argv[0], optarg);
6353                                 return CMD_HELP;
6354                         }
6355                         break;
6356                 case '?':
6357                         return CMD_HELP;
6358                 default:
6359                         fprintf(stderr, "%s: option '%s' unrecognized\n",
6360                                 argv[0], argv[optind - 1]);
6361                         return CMD_HELP;
6362                 }
6363         }
6364
6365         if (advice_type == LU_LADVISE_INVALID) {
6366                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
6367                 fprintf(stderr, "Valid types:");
6368                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
6369                      advice_type++) {
6370                         if (ladvise_names[advice_type] == NULL)
6371                                 continue;
6372                         fprintf(stderr, " %s", ladvise_names[advice_type]);
6373                 }
6374                 fprintf(stderr, "\n");
6375                 return CMD_HELP;
6376         }
6377
6378         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
6379                 fprintf(stderr, "%s: Lock no expand advice is a per file "
6380                                  "descriptor advice, so when called from lfs, "
6381                                  "it does nothing.\n", argv[0]);
6382                 return CMD_HELP;
6383         }
6384
6385         if (argc <= optind) {
6386                 fprintf(stderr, "%s: please give one or more file names\n",
6387                         argv[0]);
6388                 return CMD_HELP;
6389         }
6390
6391         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
6392                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
6393                         argv[0]);
6394                 return CMD_HELP;
6395         }
6396
6397         if (end == LUSTRE_EOF && length != 0)
6398                 end = start + length;
6399
6400         if (end <= start) {
6401                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
6402                         argv[0], start, end);
6403                 return CMD_HELP;
6404         }
6405
6406         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
6407                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
6408                         argv[0]);
6409                 return CMD_HELP;
6410         }
6411
6412         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
6413                 fprintf(stderr, "%s: mode is required with lockahead\n",
6414                         argv[0]);
6415                 return CMD_HELP;
6416         }
6417
6418         while (optind < argc) {
6419                 int rc2;
6420
6421                 path = argv[optind++];
6422
6423                 fd = open(path, O_RDONLY);
6424                 if (fd < 0) {
6425                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
6426                                 argv[0], path, strerror(errno));
6427                         rc2 = -errno;
6428                         goto next;
6429                 }
6430
6431                 advice.lla_start = start;
6432                 advice.lla_end = end;
6433                 advice.lla_advice = advice_type;
6434                 advice.lla_value1 = 0;
6435                 advice.lla_value2 = 0;
6436                 advice.lla_value3 = 0;
6437                 advice.lla_value4 = 0;
6438                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
6439                         advice.lla_lockahead_mode = mode;
6440                         advice.lla_peradvice_flags = flags;
6441                 }
6442
6443                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
6444                 close(fd);
6445                 if (rc2 < 0) {
6446                         fprintf(stderr, "%s: cannot give advice '%s' to file "
6447                                 "'%s': %s\n", argv[0],
6448                                 ladvise_names[advice_type],
6449                                 path, strerror(errno));
6450
6451                         goto next;
6452                 }
6453
6454 next:
6455                 if (rc == 0 && rc2 < 0)
6456                         rc = rc2;
6457         }
6458         return rc;
6459 }
6460
6461 /** The input string contains a comma delimited list of component ids and
6462  * ranges, for example "1,2-4,7".
6463  */
6464 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
6465 {
6466         bool end_of_loop = false;
6467         char *ptr = NULL;
6468         int nr = 0;
6469         int rc;
6470
6471         if (arg == NULL)
6472                 return -EINVAL;
6473
6474         while (!end_of_loop) {
6475                 int start_index;
6476                 int end_index;
6477                 int i;
6478                 char *endptr = NULL;
6479
6480                 rc = -EINVAL;
6481                 ptr = strchrnul(arg, ',');
6482                 end_of_loop = *ptr == '\0';
6483                 *ptr = '\0';
6484
6485                 start_index = strtol(arg, &endptr, 0);
6486                 if (endptr == arg) /* no data at all */
6487                         break;
6488                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
6489                         break;
6490                 if (start_index < 0)
6491                         break;
6492
6493                 end_index = start_index;
6494                 if (*endptr == '-') {
6495                         end_index = strtol(endptr + 1, &endptr, 0);
6496                         if (*endptr != '\0')
6497                                 break;
6498                         if (end_index < start_index)
6499                                 break;
6500                 }
6501
6502                 for (i = start_index; i <= end_index && size > 0; i++) {
6503                         int j;
6504
6505                         /* remove duplicate */
6506                         for (j = 0; j < nr; j++) {
6507                                 if (ids[j] == i)
6508                                         break;
6509                         }
6510                         if (j == nr) { /* no duplicate */
6511                                 ids[nr++] = i;
6512                                 --size;
6513                         }
6514                 }
6515
6516                 if (size == 0 && i < end_index)
6517                         break;
6518
6519                 *ptr = ',';
6520                 arg = ++ptr;
6521                 rc = 0;
6522         }
6523         if (!end_of_loop && ptr != NULL)
6524                 *ptr = ',';
6525
6526         return rc < 0 ? rc : nr;
6527 }
6528
6529 static inline
6530 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
6531                            __u16 *mirror_ids, int ids_nr)
6532 {
6533         const char *progname = "lfs mirror resync";
6534         struct llapi_resync_comp comp_array[1024] = { { 0 } };
6535         struct llapi_layout *layout;
6536         struct stat stbuf;
6537         uint32_t flr_state;
6538         int comp_size = 0;
6539         int idx;
6540         int fd;
6541         int rc;
6542
6543         if (stat(fname, &stbuf) < 0) {
6544                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
6545                         progname, fname, strerror(errno));
6546                 rc = -errno;
6547                 goto error;
6548         }
6549         if (!S_ISREG(stbuf.st_mode)) {
6550                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
6551                         progname, fname);
6552                 rc = -EINVAL;
6553                 goto error;
6554         }
6555
6556         fd = open(fname, O_DIRECT | O_RDWR);
6557         if (fd < 0) {
6558                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
6559                         progname, fname, strerror(errno));
6560                 rc = -errno;
6561                 goto error;
6562         }
6563
6564         ioc->lil_mode = LL_LEASE_WRLCK;
6565         ioc->lil_flags = LL_LEASE_RESYNC;
6566         rc = llapi_lease_get_ext(fd, ioc);
6567         if (rc < 0) {
6568                 fprintf(stderr, "%s: '%s' llapi_lease_get_ext resync failed: "
6569                         "%s.\n", progname, fname, strerror(errno));
6570                 goto close_fd;
6571         }
6572
6573         layout = llapi_layout_get_by_fd(fd, 0);
6574         if (layout == NULL) {
6575                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
6576                         progname, fname, strerror(errno));
6577                 rc = -errno;
6578                 goto close_fd;
6579         }
6580
6581         rc = llapi_layout_flags_get(layout, &flr_state);
6582         if (rc) {
6583                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
6584                         progname, fname, strerror(errno));
6585                 rc = -errno;
6586                 goto close_fd;
6587         }
6588
6589         flr_state &= LCM_FL_FLR_MASK;
6590         switch (flr_state) {
6591         case LCM_FL_NOT_FLR:
6592                 rc = -EINVAL;
6593         case LCM_FL_RDONLY:
6594                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
6595                         progname, fname, lcm_flags_string(flr_state));
6596                 goto close_fd;
6597         default:
6598                 break;
6599         }
6600
6601         /* get stale component info */
6602         comp_size = llapi_mirror_find_stale(layout, comp_array,
6603                                             ARRAY_SIZE(comp_array),
6604                                             mirror_ids, ids_nr);
6605         if (comp_size < 0) {
6606                 rc = comp_size;
6607                 goto close_fd;
6608         }
6609
6610         idx = 0;
6611         while (idx < comp_size) {
6612                 ssize_t result;
6613                 uint64_t end;
6614                 __u16 mirror_id;
6615                 int i;
6616
6617                 rc = llapi_lease_check(fd);
6618                 if (rc != LL_LEASE_WRLCK) {
6619                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
6620                                 progname, fname);
6621                         goto close_fd;
6622                 }
6623
6624                 mirror_id = comp_array[idx].lrc_mirror_id;
6625                 end = comp_array[idx].lrc_end;
6626
6627                 /* try to combine adjacent component */
6628                 for (i = idx + 1; i < comp_size; i++) {
6629                         if (mirror_id != comp_array[i].lrc_mirror_id ||
6630                             end != comp_array[i].lrc_start)
6631                                 break;
6632                         end = comp_array[i].lrc_end;
6633                 }
6634
6635                 result = llapi_mirror_resync_one(fd, layout, mirror_id,
6636                                                  comp_array[idx].lrc_start,
6637                                                  end);
6638                 if (result < 0) {
6639                         fprintf(stderr, "%s: '%s' llapi_mirror_resync_one: "
6640                                 "%ld.\n", progname, fname, result);
6641                         rc = result;
6642                         goto close_fd;
6643                 } else if (result > 0) {
6644                         int j;
6645
6646                         /* mark synced components */
6647                         for (j = idx; j < i; j++)
6648                                 comp_array[j].lrc_synced = true;
6649                 }
6650
6651                 idx = i;
6652         }
6653
6654         /* prepare ioc for lease put */
6655         ioc->lil_mode = LL_LEASE_UNLCK;
6656         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
6657         ioc->lil_count = 0;
6658         for (idx = 0; idx < comp_size; idx++) {
6659                 if (comp_array[idx].lrc_synced) {
6660                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
6661                         ioc->lil_count++;
6662                 }
6663         }
6664
6665         llapi_layout_free(layout);
6666
6667         rc = llapi_lease_get_ext(fd, ioc);
6668         if (rc <= 0) {
6669                 if (rc == 0) /* lost lease lock */
6670                         rc = -EBUSY;
6671                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
6672                         progname, fname, strerror(errno));
6673                 goto close_fd;
6674         }
6675         /**
6676          * llapi_lease_get_ext returns lease mode when it request to unlock
6677          * the lease lock
6678          */
6679         rc = 0;
6680
6681 close_fd:
6682         close(fd);
6683 error:
6684         return rc;
6685 }
6686
6687 static inline int lfs_mirror_resync(int argc, char **argv)
6688 {
6689         struct ll_ioc_lease *ioc = NULL;
6690         __u16 mirror_ids[128] = { 0 };
6691         int ids_nr = 0;
6692         int c;
6693         int rc = 0;
6694
6695         struct option long_opts[] = {
6696         { .val = 'o',   .name = "only",         .has_arg = required_argument },
6697         { .name = NULL } };
6698
6699         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
6700                 switch (c) {
6701                 case 'o':
6702                         rc = parse_mirror_ids(mirror_ids,
6703                                         sizeof(mirror_ids) / sizeof(__u16),
6704                                         optarg);
6705                         if (rc < 0) {
6706                                 fprintf(stderr,
6707                                         "%s: bad mirror ids '%s'.\n",
6708                                         argv[0], optarg);
6709                                 goto error;
6710                         }
6711                         ids_nr = rc;
6712                         break;
6713                 default:
6714                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
6715                                 argv[0], argv[optind - 1]);
6716                         rc = -EINVAL;
6717                         goto error;
6718                 }
6719         }
6720
6721         if (argc == optind) {
6722                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
6723                 rc = CMD_HELP;
6724                 goto error;
6725         }
6726
6727         if (ids_nr > 0 && argc > optind + 1) {
6728                 fprintf(stderr, "%s: option '--only' cannot be used upon "
6729                         "multiple files.\n", argv[0]);
6730                 rc = CMD_HELP;
6731                 goto error;
6732
6733         }
6734
6735         /* set the lease on the file */
6736         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
6737         if (ioc == NULL) {
6738                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
6739                         argv[0], strerror(errno));
6740                 rc = -errno;
6741                 goto error;
6742         }
6743
6744         for (; optind < argc; optind++) {
6745                 rc = lfs_mirror_resync_file(argv[optind], ioc,
6746                                             mirror_ids, ids_nr);
6747                 if (rc)
6748                         fprintf(stderr, "%s: resync file '%s' failed: %d\n",
6749                                 argv[0], argv[optind], rc);
6750                 /* ignore previous file's error, continue with next file */
6751
6752                 /* reset ioc */
6753                 memset(ioc, 0, sizeof(__u32) * 4096);
6754         }
6755
6756         free(ioc);
6757 error:
6758         return rc;
6759 }
6760
6761 /**
6762  * lfs_mirror() - Parse and execute lfs mirror commands.
6763  * @argc: The count of lfs mirror command line arguments.
6764  * @argv: Array of strings for lfs mirror command line arguments.
6765  *
6766  * This function parses lfs mirror commands and performs the
6767  * corresponding functions specified in mirror_cmdlist[].
6768  *
6769  * Return: 0 on success or an error code on failure.
6770  */
6771 static int lfs_mirror(int argc, char **argv)
6772 {
6773         char cmd[PATH_MAX];
6774         int rc = 0;
6775
6776         setlinebuf(stdout);
6777
6778         Parser_init("lfs-mirror > ", mirror_cmdlist);
6779
6780         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
6781         progname = cmd;
6782         program_invocation_short_name = cmd;
6783         if (argc > 1)
6784                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
6785         else
6786                 rc = Parser_commands();
6787
6788         return rc < 0 ? -rc : rc;
6789 }
6790
6791 /**
6792  * lfs_mirror_list_commands() - List lfs mirror commands.
6793  * @argc: The count of command line arguments.
6794  * @argv: Array of strings for command line arguments.
6795  *
6796  * This function lists lfs mirror commands defined in mirror_cmdlist[].
6797  *
6798  * Return: 0 on success.
6799  */
6800 static int lfs_mirror_list_commands(int argc, char **argv)
6801 {
6802         char buffer[81] = "";
6803
6804         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
6805                              NULL, 0, 4);
6806
6807         return 0;
6808 }
6809
6810 static int lfs_list_commands(int argc, char **argv)
6811 {
6812         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
6813
6814         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
6815
6816         return 0;
6817 }
6818
6819 int main(int argc, char **argv)
6820 {
6821         int rc;
6822
6823         /* Ensure that liblustreapi constructor has run */
6824         if (!liblustreapi_initialized)
6825                 fprintf(stderr, "liblustreapi was not properly initialized\n");
6826
6827         setlinebuf(stdout);
6828         opterr = 0;
6829
6830         Parser_init("lfs > ", cmdlist);
6831
6832         progname = program_invocation_short_name; /* Used in error messages */
6833         if (argc > 1) {
6834                 llapi_set_command_name(argv[1]);
6835                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
6836                 llapi_clear_command_name();
6837         } else {
6838                 rc = Parser_commands();
6839         }
6840
6841         return rc < 0 ? -rc : rc;
6842 }
6843
6844 #ifdef _LUSTRE_IDL_H_
6845 /* Everything we need here should be included by lustreapi.h. */
6846 # error "lfs should not depend on lustre_idl.h"
6847 #endif /* _LUSTRE_IDL_H_ */