lustre/utils/lfs.c

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2011, 2017, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  * Lustre is a trademark of Sun Microsystems, Inc.
  31  *
  32  * lustre/utils/lfs.c
  33  *
  34  * Author: Peter J. Braam <braam@clusterfs.com>
  35  * Author: Phil Schwan <phil@clusterfs.com>
  36  * Author: Robert Read <rread@clusterfs.com>
  37  */
  38
  39 /* for O_DIRECTORY */
  40 #ifndef _GNU_SOURCE
  41 #define _GNU_SOURCE
  42 #endif
  43
  44 #include <stdlib.h>
  45 #include <stdio.h>
  46 #include <inttypes.h>
  47 #include <getopt.h>
  48 #include <string.h>
  49 #include <mntent.h>
  50 #include <unistd.h>
  51 #include <errno.h>
  52 #include <err.h>
  53 #include <pwd.h>
  54 #include <grp.h>
  55 #include <sys/ioctl.h>
  56 #include <sys/quota.h>
  57 #include <sys/time.h>
  58 #include <sys/types.h>
  59 #include <sys/stat.h>
  60 #include <sys/param.h>
  61 #include <fcntl.h>
  62 #include <dirent.h>
  63 #include <time.h>
  64 #include <ctype.h>
  65 #include <zlib.h>
  66 #include <libgen.h>
  67 #include "lfs_project.h"
  68
  69 #include <libcfs/util/string.h>
  70 #include <libcfs/util/ioctl.h>
  71 #include <libcfs/util/parser.h>
  72 #include <lustre/lustreapi.h>
  73 #include <linux/lustre/lustre_ver.h>
  74 #include <linux/lustre/lustre_param.h>
  75 #include <linux/lnet/nidstr.h>
  76 #include <cyaml.h>
  77
  78 #ifndef ARRAY_SIZE
  79 # define ARRAY_SIZE(a) ((sizeof(a)) / (sizeof((a)[0])))
  80 #endif /* !ARRAY_SIZE */
  81
  82 /* all functions */
  83 static int lfs_find(int argc, char **argv);
  84 static int lfs_getstripe(int argc, char **argv);
  85 static int lfs_getdirstripe(int argc, char **argv);
  86 static int lfs_setdirstripe(int argc, char **argv);
  87 static int lfs_rmentry(int argc, char **argv);
  88 static int lfs_osts(int argc, char **argv);
  89 static int lfs_mdts(int argc, char **argv);
  90 static int lfs_df(int argc, char **argv);
  91 static int lfs_getname(int argc, char **argv);
  92 static int lfs_check(int argc, char **argv);
  93 #ifdef HAVE_SYS_QUOTA_H
  94 static int lfs_setquota(int argc, char **argv);
  95 static int lfs_quota(int argc, char **argv);
  96 static int lfs_project(int argc, char **argv);
  97 #endif
  98 static int lfs_flushctx(int argc, char **argv);
  99 static int lfs_cp(int argc, char **argv);
 100 static int lfs_ls(int argc, char **argv);
 101 static int lfs_poollist(int argc, char **argv);
 102 static int lfs_changelog(int argc, char **argv);
 103 static int lfs_changelog_clear(int argc, char **argv);
 104 static int lfs_fid2path(int argc, char **argv);
 105 static int lfs_path2fid(int argc, char **argv);
 106 static int lfs_data_version(int argc, char **argv);
 107 static int lfs_hsm_state(int argc, char **argv);
 108 static int lfs_hsm_set(int argc, char **argv);
 109 static int lfs_hsm_clear(int argc, char **argv);
 110 static int lfs_hsm_action(int argc, char **argv);
 111 static int lfs_hsm_archive(int argc, char **argv);
 112 static int lfs_hsm_restore(int argc, char **argv);
 113 static int lfs_hsm_release(int argc, char **argv);
 114 static int lfs_hsm_remove(int argc, char **argv);
 115 static int lfs_hsm_cancel(int argc, char **argv);
 116 static int lfs_swap_layouts(int argc, char **argv);
 117 static int lfs_mv(int argc, char **argv);
 118 static int lfs_ladvise(int argc, char **argv);
 119 static int lfs_mirror(int argc, char **argv);
 120 static int lfs_mirror_list_commands(int argc, char **argv);
 121 static int lfs_list_commands(int argc, char **argv);
 122 static inline int lfs_mirror_resync(int argc, char **argv);
 123 static inline int lfs_mirror_verify(int argc, char **argv);
 124
 125 enum setstripe_origin {
 126         SO_SETSTRIPE,
 127         SO_MIGRATE,
 128         SO_MIRROR_CREATE,
 129         SO_MIRROR_EXTEND,
 130         SO_MIRROR_SPLIT,
 131 };
 132 static int lfs_setstripe_internal(int argc, char **argv,
 133                                   enum setstripe_origin opc);
 134
 135 static inline int lfs_setstripe(int argc, char **argv)
 136 {
 137         return lfs_setstripe_internal(argc, argv, SO_SETSTRIPE);
 138 }
 139 static inline int lfs_setstripe_migrate(int argc, char **argv)
 140 {
 141         return lfs_setstripe_internal(argc, argv, SO_MIGRATE);
 142 }
 143 static inline int lfs_mirror_create(int argc, char **argv)
 144 {
 145         return lfs_setstripe_internal(argc, argv, SO_MIRROR_CREATE);
 146 }
 147 static inline int lfs_mirror_extend(int argc, char **argv)
 148 {
 149         return lfs_setstripe_internal(argc, argv, SO_MIRROR_EXTEND);
 150 }
 151 static inline int lfs_mirror_split(int argc, char **argv)
 152 {
 153         return lfs_setstripe_internal(argc, argv, SO_MIRROR_SPLIT);
 154 }
 155
 156 /* Setstripe and migrate share mostly the same parameters */
 157 #define SSM_CMD_COMMON(cmd) \
 158         "usage: "cmd" [--component-end|-E <comp_end>]\n"                \
 159         "                 [--stripe-count|-c <stripe_count>]\n"         \
 160         "                 [--stripe-index|-i <start_ost_idx>]\n"        \
 161         "                 [--stripe-size|-S <stripe_size>]\n"           \
 162         "                 [--layout|-L <pattern>]\n"                    \
 163         "                 [--pool|-p <pool_name>]\n"                    \
 164         "                 [--ost|-o <ost_indices>]\n"                   \
 165         "                 [--yaml|-y <yaml_template_file>]\n"           \
 166         "                 [--copy=<lustre_src>]\n"
 167
 168 #define SSM_HELP_COMMON \
 169         "\tstripe_count: Number of OSTs to stripe over (0=fs default, -1 all)\n" \
 170         "\tstart_ost_idx: OST index of first stripe (-1=default round robin)\n"\
 171         "\tstripe_size:  Number of bytes on each OST (0=fs default)\n" \
 172         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 173         "\t              respectively)\n"                               \
 174         "\tpool_name:    Name of OST pool to use (default none)\n"      \
 175         "\tlayout:       stripe pattern type: raid0, mdt (default raid0)\n"\
 176         "\tost_indices:  List of OST indices, can be repeated multiple times\n"\
 177         "\t              Indices be specified in a format of:\n"        \
 178         "\t                -o <ost_1>,<ost_i>-<ost_j>,<ost_n>\n"        \
 179         "\t              Or:\n"                                         \
 180         "\t                -o <ost_1> -o <ost_i>-<ost_j> -o <ost_n>\n"  \
 181         "\t              If --pool is set with --ost, then the OSTs\n"  \
 182         "\t              must be the members of the pool.\n"            \
 183         "\tcomp_end:     Extent end of component, start after previous end.\n"\
 184         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 185         "\t              respectively, -1 for EOF). Must be a multiple of\n"\
 186         "\t              stripe_size.\n"                                      \
 187         "\tyaml_template_file:\n"                                             \
 188         "\t              YAML layout template file, can't be used with -c,\n" \
 189         "\t              -i, -S, -p, -o, or -E arguments.\n"                  \
 190         "\tlustre_src:   Lustre file/dir whose layout info is used to set\n"  \
 191         "\t              another lustre file or directory, can't used with\n" \
 192         "\t              -c, -i, -S, -p, -o, or -E arguments.\n"
 193
 194 #define MIRROR_CREATE_HELP                                                     \
 195         "\tmirror_count: Number of mirrors to be created with the upcoming\n"  \
 196         "\t              setstripe layout options\n"                           \
 197         "\t              It defaults to 1 if not specified; if specified,\n"   \
 198         "\t              it must follow the option without a space.\n"         \
 199         "\t              The option can also be repeated multiple times to\n"  \
 200         "\t              separate mirrors that have different layouts.\n"      \
 201         "\tsetstripe options: Mirror layout\n"                                 \
 202         "\t              It can be a plain layout or a composite layout.\n"    \
 203         "\t              If not specified, the stripe options inherited\n"     \
 204         "\t              from the previous component will be used.\n"          \
 205         "\tflags:        set flags to the component of the current mirror.\n"  \
 206         "\t              Only \"prefer\" flag is supported so far.\n"
 207
 208 #define MIRROR_EXTEND_HELP                                                     \
 209         MIRROR_CREATE_HELP                                                     \
 210         "\tvictim_file:  The layout of victim_file will be split and used\n"   \
 211         "\t              as a mirror added to the mirrored file.\n"            \
 212         "\tno-verify:    This option indicates not to verify the mirror(s)\n"  \
 213         "\t              from victim file(s) in case the victim file(s)\n"     \
 214         "\t              contains the same data as the original mirrored\n"    \
 215         "\t              file.\n"
 216
 217 #define MIRROR_EXTEND_USAGE                                                    \
 218         "                 <--mirror-count|-N[mirror_count]>\n"                 \
 219         "                 [setstripe options|-f <victim_file>]\n"              \
 220         "                 [--no-verify]\n"
 221
 222 #define SETSTRIPE_USAGE                                                 \
 223         SSM_CMD_COMMON("setstripe")                                     \
 224         MIRROR_EXTEND_USAGE                                             \
 225         "                 <directory|filename>\n"                       \
 226         SSM_HELP_COMMON                                                 \
 227         MIRROR_EXTEND_HELP
 228
 229 #define MIGRATE_USAGE                                                   \
 230         SSM_CMD_COMMON("migrate  ")                                     \
 231         "                 [--block|-b]\n"                               \
 232         "                 [--non-block|-n]\n"                           \
 233         "                 [--non-direct|-D]\n"                          \
 234         "                 <filename>\n"                                 \
 235         SSM_HELP_COMMON                                                 \
 236         "\n"                                                            \
 237         "\tblock:        Block file access during data migration (default)\n" \
 238         "\tnon-block:    Abort migrations if concurrent access is detected\n" \
 239         "\tnon-direct:   Do not use direct I/O to copy file contents\n" \
 240
 241 #define SETDIRSTRIPE_USAGE                                      \
 242         "               [--mdt-count|-c stripe_count>\n"        \
 243         "               [--mdt-index|-i mdt_index]\n"           \
 244         "               [--mdt-hash|-H mdt_hash]\n"             \
 245         "               [--default|-D] [--mode|-m mode] <dir>\n"        \
 246         "\tstripe_count: stripe count of the striped directory\n"       \
 247         "\tmdt_index: MDT index of first stripe\n"                      \
 248         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 249         "       fnv_1a_64 FNV-1a hash algorithm (default)\n"            \
 250         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 251         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 252         "\tmode: the mode of the directory\n"
 253
 254 /**
 255  * command_t mirror_cmdlist - lfs mirror commands.
 256  */
 257 command_t mirror_cmdlist[] = {
 258         { .pc_name = "create", .pc_func = lfs_mirror_create,
 259           .pc_help = "Create a mirrored file.\n"
 260                 "usage: lfs mirror create "
 261                 "<--mirror-count|-N[mirror_count]> "
 262                 "[setstripe options] ... <filename|directory>\n"
 263           MIRROR_CREATE_HELP },
 264         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 265           .pc_help = "Extend a mirrored file.\n"
 266                 "usage: lfs mirror extend "
 267                 "<--mirror-count|-N[mirror_count]> [--no-verify] "
 268                 "[setstripe options|-f <victim_file>] ... <filename>\n"
 269           MIRROR_EXTEND_HELP },
 270         { .pc_name = "split", .pc_func = lfs_mirror_split,
 271           .pc_help = "Split a mirrored file.\n"
 272         "usage: lfs mirror split <--mirror-id <mirror_id>> [--destroy|-d] "
 273         "[-f <new_file>] <mirrored file>\n"
 274         "\tmirror_id:    The numerical unique identifier for a mirror. It\n"
 275         "\t              can be fetched by lfs getstripe command.\n"
 276         "\tnew_file:     This option indicates the layout of the split\n"
 277         "\t              mirror will be stored into. If not specified,\n"
 278         "\t              a new file named <mirrored_file>.mirror~<mirror_id>\n"
 279         "\t              will be used.\n" },
 280         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 281           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 282                 "usage: lfs mirror resync [--only <mirror_id[,...]>] "
 283                 "<mirrored file> [<mirrored file2>...]\n"},
 284         { .pc_name = "verify", .pc_func = lfs_mirror_verify,
 285           .pc_help = "Verify mirrored file(s).\n"
 286                 "usage: lfs mirror verify "
 287                 "[--only <mirror_id,mirror_id2[,...]>] "
 288                 "[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n"},
 289         { .pc_name = "--list-commands", .pc_func = lfs_mirror_list_commands,
 290           .pc_help = "list commands supported by lfs mirror"},
 291         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 292         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 293         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 294         { .pc_help = NULL }
 295 };
 296
 297 /* all available commands */
 298 command_t cmdlist[] = {
 299         {"setstripe", lfs_setstripe, 0,
 300          "To create a file with specified striping/composite layout, or\n"
 301          "create/replace the default layout on an existing directory:\n"
 302          SSM_CMD_COMMON("setstripe")
 303          "                 <directory|filename>\n"
 304          " or\n"
 305          "To add component(s) to an existing composite file:\n"
 306          SSM_CMD_COMMON("setstripe --component-add")
 307          SSM_HELP_COMMON
 308          "To totally delete the default striping from an existing directory:\n"
 309          "usage: setstripe -d <directory>\n"
 310          " or\n"
 311          "To delete the last component(s) from an existing composite file\n"
 312          "(note that this will also delete any data in those components):\n"
 313          "usage: setstripe --component-del [--component-id|-I <comp_id>]\n"
 314          "                               [--component-flags|-F <comp_flags>]\n"
 315          "                               <filename>\n"
 316          "\tcomp_id:     Unique component ID to delete\n"
 317          "\tcomp_flags:  'init' indicating all instantiated components\n"
 318          "\t             '^init' indicating all uninstantiated components\n"
 319          "\t-I and -F cannot be specified at the same time\n"},
 320         {"getstripe", lfs_getstripe, 0,
 321          "To list the layout pattern for a given file or files in a\n"
 322          "directory or recursively for all files in a directory tree.\n"
 323          "usage: getstripe [--ost|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
 324          "                 [--stripe-count|-c] [--stripe-index|-i] [--fid|-F]\n"
 325          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 326          "                 [--mdt-index|-m] [--recursive|-r] [--raw|-R]\n"
 327          "                 [--layout|-L] [--generation|-g] [--yaml|-y]\n"
 328          "                 [--component-id[=comp_id]|-I[comp_id]]\n"
 329          "                 [--component-flags[=comp_flags]]\n"
 330          "                 [--component-count]\n"
 331          "                 [--component-start[=[+-]comp_start]]\n"
 332          "                 [--component-end[=[+-]comp_end]|-E[[+-]comp_end]]\n"
 333          "                 <directory|filename> ..."},
 334         {"setdirstripe", lfs_setdirstripe, 0,
 335          "To create a striped directory on a specified MDT. This can only\n"
 336          "be done on MDT0 with the right of administrator.\n"
 337          "usage: setdirstripe [OPTION] <directory>\n"
 338          SETDIRSTRIPE_USAGE},
 339         {"getdirstripe", lfs_getdirstripe, 0,
 340          "To list the layout pattern info for a given directory\n"
 341          "or recursively for all directories in a directory tree.\n"
 342          "usage: getdirstripe [--mdt-count|-c] [--mdt-index|-m|-i]\n"
 343          "                    [--mdt-hash|-H] [--obd|-O <uuid>]\n"
 344          "                    [--recursive|-r] [--yaml|-y]\n"
 345          "                    [--default|-D] <dir> ..."},
 346         {"mkdir", lfs_setdirstripe, 0,
 347          "To create a striped directory on a specified MDT. This can only\n"
 348          "be done on MDT0 with the right of administrator.\n"
 349          "usage: mkdir [OPTION] <directory>\n"
 350          SETDIRSTRIPE_USAGE},
 351         {"rm_entry", lfs_rmentry, 0,
 352          "To remove the name entry of the remote directory. Note: This\n"
 353          "command will only delete the name entry, i.e. the remote directory\n"
 354          "will become inaccessable after this command. This can only be done\n"
 355          "by the administrator\n"
 356          "usage: rm_entry <dir>\n"},
 357         {"pool_list", lfs_poollist, 0,
 358          "List pools or pool OSTs\n"
 359          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 360         {"find", lfs_find, 0,
 361          "find files matching given attributes recursively in directory tree.\n"
 362          "usage: find <directory|filename> ...\n"
 363          "     [[!] --atime|-A [+-]N] [[!] --ctime|-C [+-]N]\n"
 364          "     [[!] --mtime|-M [+-]N] [--maxdepth|-D N] [[!] --blocks|-b N]\n"
 365          "     [[!] --mdt-index|--mdt|-m <uuid|index,...>]\n"
 366          "     [[!] --name|-n <pattern>] [[!] --ost|-O <uuid|index,...>]\n"
 367          "     [--print|-P] [--print0|-0] [[!] --size|-s [+-]N[bkMGTPE]]\n"
 368          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 369          "     [[!] --stripe-index|-i <index,...>]\n"
 370          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 371          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
 372          "     [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
 373          "     [[!] --projid <projid>]\n"
 374          "     [[!] --layout|-L released,raid0,mdt]\n"
 375          "     [[!] --component-count [+-]<comp_cnt>]\n"
 376          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 377          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 378          "     [[!] --component-flags <comp_flags>]\n"
 379          "     [[!] --mirror-count|-N [+-]<n>]\n"
 380          "     [[!] --mirror-state <[^]state>]\n"
 381          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 382          "     [[!] --mdt-hash|-H <hashtype>\n"
 383          "\t !: used before an option indicates 'NOT' requested attribute\n"
 384          "\t -: used before a value indicates less than requested value\n"
 385          "\t +: used before a value indicates more than requested value\n"
 386          "\thashtype:   hash type of the striped directory.\n"
 387          "\t            fnv_1a_64 FNV-1a hash algorithm\n"
 388          "\t            all_char  sum of characters % MDT_COUNT\n"},
 389         {"check", lfs_check, 0,
 390          "Display the status of MDS or OSTs (as specified in the command)\n"
 391          "or all the servers (MDS and OSTs).\n"
 392          "usage: check <osts|mds|servers>"},
 393         {"osts", lfs_osts, 0, "list OSTs connected to client "
 394          "[for specified path only]\n" "usage: osts [path]"},
 395         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 396          "[for specified path only]\n" "usage: mdts [path]"},
 397         {"df", lfs_df, 0,
 398          "report filesystem disk space usage or inodes usage"
 399          "of each MDS and all OSDs or a batch belonging to a specific pool .\n"
 400          "Usage: df [-i] [-h] [--lazy|-l] [--pool|-p <fsname>[.<pool>] [path]"},
 401         {"getname", lfs_getname, 0, "list instances and specified mount points "
 402          "[for specified path only]\n"
 403          "Usage: getname [-h]|[path ...] "},
 404 #ifdef HAVE_SYS_QUOTA_H
 405         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 406          "usage: setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 407          "                -b <block-softlimit> -B <block-hardlimit>\n"
 408          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 409          "       setquota <-u|--user|-g|--group|-p|--projid> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 410          "                [--block-softlimit <block-softlimit>]\n"
 411          "                [--block-hardlimit <block-hardlimit>]\n"
 412          "                [--inode-softlimit <inode-softlimit>]\n"
 413          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 414          "       setquota [-t] <-u|--user|-g|--group|-p|--projid>\n"
 415          "                [--block-grace <block-grace>]\n"
 416          "                [--inode-grace <inode-grace>] <filesystem>\n"
 417          "       -b can be used instead of --block-softlimit/--block-grace\n"
 418          "       -B can be used instead of --block-hardlimit\n"
 419          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 420          "       -I can be used instead of --inode-hardlimit\n\n"
 421          "Note: The total quota space will be split into many qunits and\n"
 422          "      balanced over all server targets, the minimal qunit size is\n"
 423          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 424          "      Quota space rebalancing process will stop when this mininum\n"
 425          "      value is reached. As a result, quota exceeded can be returned\n"
 426          "      while many targets still have 1MB or 1K inodes of spare\n"
 427          "      quota space."},
 428         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 429          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
 430                        "<ost_idx>]\n"
 431          "             [<-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>\n"
 432          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g|-p> <filesystem>"},
 433         {"project", lfs_project, 0,
 434          "Change or list project attribute for specified file or directory.\n"
 435          "usage: project [-d|-r] <file|directory...>\n"
 436          "         list project ID and flags on file(s) or directories\n"
 437          "       project [-p id] [-s] [-r] <file|directory...>\n"
 438          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 439          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 440          "         check project ID and flags on file(s) or directories, print outliers\n"
 441          "       project -C [-r] [-k] <file|directory...>\n"
 442          "         clear the project inherit flag and ID on the file or directory\n"
 443         },
 444 #endif
 445         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
 446          "usage: flushctx [-k] [mountpoint...]"},
 447         {"cp", lfs_cp, 0,
 448          "Remote user copy files and directories.\n"
 449          "usage: cp [OPTION]... [-T] SOURCE DEST\n\tcp [OPTION]... SOURCE... DIRECTORY\n\tcp [OPTION]... -t DIRECTORY SOURCE..."},
 450         {"ls", lfs_ls, 0,
 451          "Remote user list directory contents.\n"
 452          "usage: ls [OPTION]... [FILE]..."},
 453         {"changelog", lfs_changelog, 0,
 454          "Show the metadata changes on an MDT."
 455          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 456         {"changelog_clear", lfs_changelog_clear, 0,
 457          "Indicate that old changelog records up to <endrec> are no longer of "
 458          "interest to consumer <id>, allowing the system to free up space.\n"
 459          "An <endrec> of 0 means all records.\n"
 460          "usage: changelog_clear <mdtname> <id> <endrec>"},
 461         {"fid2path", lfs_fid2path, 0,
 462          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 463          "specify link number <linkno>.\n"
 464         /* "For a historical link name, specify changelog record <recno>.\n" */
 465          "usage: fid2path [--link <linkno>] <fsname|rootpath> <fid> ..."
 466                 /* [ --rec <recno> ] */ },
 467         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 468          "usage: path2fid [--parents] <path> ..."},
 469         {"data_version", lfs_data_version, 0, "Display file data version for "
 470          "a given path.\n" "usage: data_version -[n|r|w] <path>"},
 471         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 472          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 473         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 474          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 475          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 476         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 477          "files.\n"
 478          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 479          "[--archived] [--lost] <file> ..."},
 480         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 481          "given files.\n" "usage: hsm_action <file> ..."},
 482         {"hsm_archive", lfs_hsm_archive, 0,
 483          "Archive file to external storage.\n"
 484          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 485          "<file> ..."},
 486         {"hsm_restore", lfs_hsm_restore, 0,
 487          "Restore file from external storage.\n"
 488          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 489         {"hsm_release", lfs_hsm_release, 0,
 490          "Release files from Lustre.\n"
 491          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 492         {"hsm_remove", lfs_hsm_remove, 0,
 493          "Remove file copy from external storage.\n"
 494          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 495          "[--archive NUM]\n"
 496          "                  (FILE [FILE ...] | "
 497          "--mntpath MOUNTPATH FID [FID ...])\n"
 498          "\n"
 499          "Note: To remove an archived copy of a file already deleted from a "
 500          "Lustre FS, the\n"
 501          "--mntpath option and a list of FIDs must be specified"
 502         },
 503         {"hsm_cancel", lfs_hsm_cancel, 0,
 504          "Cancel requests related to specified files.\n"
 505          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 506         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 507          "usage: swap_layouts <path1> <path2>"},
 508         {"migrate", lfs_setstripe_migrate, 0,
 509          "migrate a directory between MDTs.\n"
 510          "usage: migrate --mdt-index <mdt_idx> [--verbose|-v] "
 511          "<directory>\n"
 512          "\tmdt_idx:      index of the destination MDT\n"
 513          "\n"
 514          "migrate file objects from one OST "
 515          "layout\nto another (may be not safe with concurent writes).\n"
 516          "usage: migrate  "
 517          "[--stripe-count|-c] <stripe_count>\n"
 518          "              [--stripe-index|-i] <start_ost_index>\n"
 519          "              [--stripe-size|-S] <stripe_size>\n"
 520          "              [--pool|-p] <pool_name>\n"
 521          "              [--ost|-o] <ost_indices>\n"
 522          "              [--block|-b]\n"
 523          "              [--non-block|-n]\n"
 524          "              [--non-direct|-D]\n"
 525          "              <file|directory>\n"
 526          "\tstripe_count:     number of OSTs to stripe a file over\n"
 527          "\tstripe_ost_index: index of the first OST to stripe a file over\n"
 528          "\tstripe_size:      number of bytes to store before moving to the next OST\n"
 529          "\tpool_name:        name of the predefined pool of OSTs\n"
 530          "\tost_indices:      OSTs to stripe over, in order\n"
 531          "\tblock:            wait for the operation to return before continuing\n"
 532          "\tnon-block:        do not wait for the operation to return\n"
 533          "\tnon-direct:       do not use direct I/O to copy file contents.\n"},
 534         {"mv", lfs_mv, 0,
 535          "To move directories between MDTs. This command is deprecated, "
 536          "use \"migrate\" instead.\n"
 537          "usage: mv <directory|filename> [--mdt-index|-m] <mdt_index> "
 538          "[--verbose|-v]\n"},
 539         {"ladvise", lfs_ladvise, 0,
 540          "Provide servers with advice about access patterns for a file.\n"
 541          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 542          "               [--background|-b] [--unset|-u]\n\n"
 543          "               {[--end|-e END[kMGT]] | [--length|-l LENGTH[kMGT]]}\n"
 544          "               {[--mode|-m [READ,WRITE]}\n"
 545          "               <file> ...\n"},
 546         {"mirror", lfs_mirror, mirror_cmdlist,
 547          "lfs commands used to manage files with mirrored components:\n"
 548          "lfs mirror create - create a mirrored file or directory\n"
 549          "lfs mirror extend - add mirror(s) to an existing file\n"
 550          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 551          "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
 552          "lfs mirror verify - verify mirrored file(s)\n"},
 553         {"help", Parser_help, 0, "help"},
 554         {"exit", Parser_quit, 0, "quit"},
 555         {"quit", Parser_quit, 0, "quit"},
 556         {"--version", Parser_version, 0,
 557          "output build version of the utility and exit"},
 558         {"--list-commands", lfs_list_commands, 0,
 559          "list commands supported by the utility and exit"},
 560         { 0, 0, 0, NULL }
 561 };
 562
 563
 564 static int check_hashtype(const char *hashtype)
 565 {
 566         int i;
 567
 568         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 569                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 570                         return i;
 571
 572         return 0;
 573 }
 574
 575
 576 static const char *error_loc = "syserror";
 577
 578 enum {
 579         MIGRATION_NONBLOCK      = 1 << 0,
 580         MIGRATION_MIRROR        = 1 << 1,
 581         MIGRATION_NONDIRECT     = 1 << 2,
 582 };
 583
 584 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
 585                                 struct llapi_layout *layout);
 586
 587 static int
 588 migrate_open_files(const char *name, __u64 migration_flags,
 589                    const struct llapi_stripe_param *param,
 590                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 591 {
 592         int                      fd = -1;
 593         int                      fdv = -1;
 594         int                      rflags;
 595         int                      mdt_index;
 596         int                      random_value;
 597         char                     parent[PATH_MAX];
 598         char                     volatile_file[PATH_MAX];
 599         char                    *ptr;
 600         int                      rc;
 601         struct stat              st;
 602         struct stat              stv;
 603
 604         if (param == NULL && layout == NULL) {
 605                 error_loc = "layout information";
 606                 return -EINVAL;
 607         }
 608
 609         /* search for file directory pathname */
 610         if (strlen(name) > sizeof(parent) - 1) {
 611                 error_loc = "source file name";
 612                 return -ERANGE;
 613         }
 614
 615         strncpy(parent, name, sizeof(parent));
 616         ptr = strrchr(parent, '/');
 617         if (ptr == NULL) {
 618                 if (getcwd(parent, sizeof(parent)) == NULL) {
 619                         error_loc = "getcwd";
 620                         return -errno;
 621                 }
 622         } else {
 623                 if (ptr == parent) /* leading '/' */
 624                         ptr = parent + 1;
 625                 *ptr = '\0';
 626         }
 627
 628         /* open file, direct io */
 629         /* even if the file is only read, WR mode is nedeed to allow
 630          * layout swap on fd */
 631         rflags = O_RDWR;
 632         if (!(migration_flags & MIGRATION_NONDIRECT))
 633                 rflags |= O_DIRECT;
 634         fd = open(name, rflags);
 635         if (fd < 0) {
 636                 rc = -errno;
 637                 error_loc = "cannot open source file";
 638                 return rc;
 639         }
 640
 641         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 642         if (rc < 0) {
 643                 error_loc = "cannot get MDT index";
 644                 goto out;
 645         }
 646
 647         do {
 648                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 649                 mode_t open_mode = S_IRUSR | S_IWUSR;
 650
 651                 random_value = random();
 652                 rc = snprintf(volatile_file, sizeof(volatile_file),
 653                               "%s/%s:%.4X:%.4X", parent, LUSTRE_VOLATILE_HDR,
 654                               mdt_index, random_value);
 655                 if (rc >= sizeof(volatile_file)) {
 656                         rc = -ENAMETOOLONG;
 657                         break;
 658                 }
 659
 660                 /* create, open a volatile file, use caching (ie no directio) */
 661                 if (param != NULL)
 662                         fdv = llapi_file_open_param(volatile_file, open_flags,
 663                                                     open_mode, param);
 664                 else
 665                         fdv = lfs_component_create(volatile_file, open_flags,
 666                                                    open_mode, layout);
 667         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 668
 669         if (rc < 0) {
 670                 error_loc = "cannot create volatile file";
 671                 goto out;
 672         }
 673
 674         /* In case the MDT does not support creation of volatile files
 675          * we should try to unlink it. */
 676         (void)unlink(volatile_file);
 677
 678         /* Not-owner (root?) special case.
 679          * Need to set owner/group of volatile file like original.
 680          * This will allow to pass related check during layout_swap.
 681          */
 682         rc = fstat(fd, &st);
 683         if (rc != 0) {
 684                 rc = -errno;
 685                 error_loc = "cannot stat source file";
 686                 goto out;
 687         }
 688
 689         rc = fstat(fdv, &stv);
 690         if (rc != 0) {
 691                 rc = -errno;
 692                 error_loc = "cannot stat volatile";
 693                 goto out;
 694         }
 695
 696         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 697                 rc = fchown(fdv, st.st_uid, st.st_gid);
 698                 if (rc != 0) {
 699                         rc = -errno;
 700                         error_loc = "cannot change ownwership of volatile";
 701                         goto out;
 702                 }
 703         }
 704
 705 out:
 706         if (rc < 0) {
 707                 if (fd > 0)
 708                         close(fd);
 709                 if (fdv > 0)
 710                         close(fdv);
 711         } else {
 712                 *fd_src = fd;
 713                 *fd_tgt = fdv;
 714                 error_loc = NULL;
 715         }
 716         return rc;
 717 }
 718
 719 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 720 {
 721         struct llapi_layout *layout;
 722         size_t   buf_size = 4 * 1024 * 1024;
 723         void    *buf = NULL;
 724         ssize_t  rsize = -1;
 725         ssize_t  wsize = 0;
 726         size_t   rpos = 0;
 727         size_t   wpos = 0;
 728         off_t    bufoff = 0;
 729         int      rc;
 730
 731         layout = llapi_layout_get_by_fd(fd_src, 0);
 732         if (layout != NULL) {
 733                 uint64_t stripe_size;
 734
 735                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 736                 if (rc == 0)
 737                         buf_size = stripe_size;
 738
 739                 llapi_layout_free(layout);
 740         }
 741
 742         /* Use a page-aligned buffer for direct I/O */
 743         rc = posix_memalign(&buf, getpagesize(), buf_size);
 744         if (rc != 0)
 745                 return -rc;
 746
 747         while (1) {
 748                 /* read new data only if we have written all
 749                  * previously read data */
 750                 if (wpos == rpos) {
 751                         if (check_file) {
 752                                 rc = check_file(fd_src);
 753                                 if (rc < 0)
 754                                         break;
 755                         }
 756
 757                         rsize = read(fd_src, buf, buf_size);
 758                         if (rsize < 0) {
 759                                 rc = -errno;
 760                                 break;
 761                         }
 762                         rpos += rsize;
 763                         bufoff = 0;
 764                 }
 765                 /* eof ? */
 766                 if (rsize == 0)
 767                         break;
 768
 769                 wsize = write(fd_dst, buf + bufoff, rpos - wpos);
 770                 if (wsize < 0) {
 771                         rc = -errno;
 772                         break;
 773                 }
 774                 wpos += wsize;
 775                 bufoff += wsize;
 776         }
 777
 778         if (rc == 0) {
 779                 rc = fsync(fd_dst);
 780                 if (rc < 0)
 781                         rc = -errno;
 782         }
 783
 784         free(buf);
 785         return rc;
 786 }
 787
 788 static int migrate_copy_timestamps(int fd, int fdv)
 789 {
 790         struct stat st;
 791
 792         if (fstat(fd, &st) == 0) {
 793                 struct timeval tv[2] = {
 794                         {.tv_sec = st.st_atime},
 795                         {.tv_sec = st.st_mtime}
 796                 };
 797
 798                 return futimes(fdv, tv);
 799         }
 800
 801         return -errno;
 802 }
 803
 804 static int migrate_block(int fd, int fdv)
 805 {
 806         __u64   dv1;
 807         int     gid;
 808         int     rc;
 809         int     rc2;
 810
 811         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 812         if (rc < 0) {
 813                 error_loc = "cannot get dataversion";
 814                 return rc;
 815         }
 816
 817         do
 818                 gid = random();
 819         while (gid == 0);
 820
 821         /* The grouplock blocks all concurrent accesses to the file.
 822          * It has to be taken after llapi_get_data_version as it would
 823          * block it too. */
 824         rc = llapi_group_lock(fd, gid);
 825         if (rc < 0) {
 826                 error_loc = "cannot get group lock";
 827                 return rc;
 828         }
 829
 830         rc = migrate_copy_data(fd, fdv, NULL);
 831         if (rc < 0) {
 832                 error_loc = "data copy failed";
 833                 goto out_unlock;
 834         }
 835
 836         /* Make sure we keep original atime/mtime values */
 837         rc = migrate_copy_timestamps(fd, fdv);
 838         if (rc < 0) {
 839                 error_loc = "timestamp copy failed";
 840                 goto out_unlock;
 841         }
 842
 843         /* swap layouts
 844          * for a migration we need to check data version on file did
 845          * not change.
 846          *
 847          * Pass in gid=0 since we already own grouplock. */
 848         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
 849                                            SWAP_LAYOUTS_CHECK_DV1);
 850         if (rc == -EAGAIN) {
 851                 error_loc = "file changed";
 852                 goto out_unlock;
 853         } else if (rc < 0) {
 854                 error_loc = "cannot swap layout";
 855                 goto out_unlock;
 856         }
 857
 858 out_unlock:
 859         rc2 = llapi_group_unlock(fd, gid);
 860         if (rc2 < 0 && rc == 0) {
 861                 error_loc = "unlock group lock";
 862                 rc = rc2;
 863         }
 864
 865         return rc;
 866 }
 867
 868 /**
 869  * Internal helper for migrate_copy_data(). Check lease and report error if
 870  * need be.
 871  *
 872  * \param[in]  fd           File descriptor on which to check the lease.
 873  *
 874  * \retval 0       Migration can keep on going.
 875  * \retval -errno  Error occurred, abort migration.
 876  */
 877 static int check_lease(int fd)
 878 {
 879         int rc;
 880
 881         rc = llapi_lease_check(fd);
 882         if (rc > 0)
 883                 return 0; /* llapi_check_lease returns > 0 on success. */
 884
 885         return -EBUSY;
 886 }
 887
 888 static int migrate_nonblock(int fd, int fdv)
 889 {
 890         __u64   dv1;
 891         __u64   dv2;
 892         int     rc;
 893
 894         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 895         if (rc < 0) {
 896                 error_loc = "cannot get data version";
 897                 return rc;
 898         }
 899
 900         rc = migrate_copy_data(fd, fdv, check_lease);
 901         if (rc < 0) {
 902                 error_loc = "data copy failed";
 903                 return rc;
 904         }
 905
 906         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
 907         if (rc != 0) {
 908                 error_loc = "cannot get data version";
 909                 return rc;
 910         }
 911
 912         if (dv1 != dv2) {
 913                 rc = -EAGAIN;
 914                 error_loc = "source file changed";
 915                 return rc;
 916         }
 917
 918         /* Make sure we keep original atime/mtime values */
 919         rc = migrate_copy_timestamps(fd, fdv);
 920         if (rc < 0) {
 921                 error_loc = "timestamp copy failed";
 922                 return rc;
 923         }
 924
 925         return 0;
 926 }
 927
 928 static int lfs_component_set(char *fname, int comp_id,
 929                              __u32 flags, __u32 neg_flags)
 930 {
 931         __u32 ids[2];
 932         __u32 flags_array[2];
 933         size_t count = 0;
 934         int rc;
 935
 936         if (flags) {
 937                 ids[count] = comp_id;
 938                 flags_array[count] = flags;
 939                 ++count;
 940         }
 941
 942         if (neg_flags) {
 943                 ids[count] = comp_id;
 944                 flags_array[count] = neg_flags | LCME_FL_NEG;
 945                 ++count;
 946         }
 947
 948         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
 949         if (rc)
 950                 fprintf(stderr,
 951                         "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
 952                         progname, comp_id, fname, flags, neg_flags);
 953
 954         return rc;
 955 }
 956
 957 static int lfs_component_del(char *fname, __u32 comp_id,
 958                              __u32 flags, __u32 neg_flags)
 959 {
 960         int     rc = 0;
 961
 962         if (flags && neg_flags)
 963                 return -EINVAL;
 964
 965         if (!flags && neg_flags)
 966                 flags = neg_flags | LCME_FL_NEG;
 967
 968         if ((flags && comp_id) || (!flags && !comp_id))
 969                 return -EINVAL;
 970
 971         /* LCME_FL_INIT is the only supported flag in PFL */
 972         if (flags) {
 973                 if (flags & ~LCME_KNOWN_FLAGS) {
 974                         fprintf(stderr,
 975                                 "%s setstripe: unknown flags %#x\n",
 976                                 progname, flags);
 977                         return -EINVAL;
 978                 }
 979         } else if (comp_id > LCME_ID_MAX) {
 980                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
 981                         progname, comp_id);
 982                 return -EINVAL;
 983         }
 984
 985         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
 986         if (rc)
 987                 fprintf(stderr,
 988                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
 989                         progname, comp_id, fname, strerror(errno));
 990         return rc;
 991 }
 992
 993 static int lfs_component_add(char *fname, struct llapi_layout *layout)
 994 {
 995         int     rc;
 996
 997         if (layout == NULL)
 998                 return -EINVAL;
 999
1000         rc = llapi_layout_file_comp_add(fname, layout);
1001         if (rc)
1002                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1003                         fname, strerror(errno));
1004         return rc;
1005 }
1006
1007 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1008                                 struct llapi_layout *layout)
1009 {
1010         struct stat     st;
1011         int     fd;
1012
1013         if (layout == NULL)
1014                 return -EINVAL;
1015
1016         fd = lstat(fname, &st);
1017         if (fd == 0 && S_ISDIR(st.st_mode))
1018                 open_flags = O_DIRECTORY | O_RDONLY;
1019
1020         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1021         if (fd < 0)
1022                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1023                         S_ISDIR(st.st_mode) ?
1024                                 "set default composite layout for" :
1025                                 "create composite file",
1026                         fname, strerror(errno));
1027         return fd;
1028 }
1029
1030 static int lfs_migrate(char *name, __u64 migration_flags,
1031                        struct llapi_stripe_param *param,
1032                        struct llapi_layout *layout)
1033 {
1034         int fd = -1;
1035         int fdv = -1;
1036         int rc;
1037
1038         rc = migrate_open_files(name, migration_flags, param, layout,
1039                                 &fd, &fdv);
1040         if (rc < 0)
1041                 goto out;
1042
1043         if (!(migration_flags & MIGRATION_NONBLOCK)) {
1044                 /* Blocking mode (forced if servers do not support file lease).
1045                  * It is also the default mode, since we cannot distinguish
1046                  * between a broken lease and a server that does not support
1047                  * atomic swap/close (LU-6785) */
1048                 rc = migrate_block(fd, fdv);
1049                 goto out;
1050         }
1051
1052         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1053         if (rc < 0) {
1054                 error_loc = "cannot get lease";
1055                 goto out;
1056         }
1057
1058         rc = migrate_nonblock(fd, fdv);
1059         if (rc < 0) {
1060                 llapi_lease_release(fd);
1061                 goto out;
1062         }
1063
1064         /* Atomically put lease, swap layouts and close.
1065          * for a migration we need to check data version on file did
1066          * not change. */
1067         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1068         if (rc < 0) {
1069                 error_loc = "cannot swap layout";
1070                 goto out;
1071         }
1072
1073 out:
1074         if (fd >= 0)
1075                 close(fd);
1076
1077         if (fdv >= 0)
1078                 close(fdv);
1079
1080         if (rc < 0)
1081                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1082                         progname, name, error_loc, strerror(-rc));
1083         return rc;
1084 }
1085
1086 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1087 {
1088         char *name;
1089
1090         if (string == NULL)
1091                 return -EINVAL;
1092
1093         *flags = 0;
1094         *neg_flags = 0;
1095         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1096                 bool found = false;
1097                 int i;
1098
1099                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1100                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1101                         const char *comp_name = comp_flags_table[i].cfn_name;
1102
1103                         if (strcmp(name, comp_name) == 0) {
1104                                 *flags |= comp_flag;
1105                                 found = true;
1106                         } else if (strncmp(name, "^", 1) == 0 &&
1107                                    strcmp(name + 1, comp_name) == 0) {
1108                                 *neg_flags |= comp_flag;
1109                                 found = true;
1110                         }
1111                 }
1112                 if (!found) {
1113                         llapi_printf(LLAPI_MSG_ERROR,
1114                                      "%s: component flag '%s' not supported\n",
1115                                      progname, name);
1116                         return -EINVAL;
1117                 }
1118         }
1119
1120         if (!*flags && !*neg_flags)
1121                 return -EINVAL;
1122
1123         /* don't allow to set and exclude the same flag */
1124         if (*flags & *neg_flags)
1125                 return -EINVAL;
1126
1127         return 0;
1128 }
1129
1130 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1131 {
1132         if (string == NULL)
1133                 return -EINVAL;
1134
1135         *state = 0;
1136         *neg_state = 0;
1137
1138         if (strncmp(string, "^", 1) == 0) {
1139                 *neg_state = llapi_layout_string_flags(string + 1);
1140                 if (*neg_state != 0)
1141                         return 0;
1142         } else {
1143                 *state = llapi_layout_string_flags(string);
1144                 if (*state != 0)
1145                         return 0;
1146         }
1147
1148         llapi_printf(LLAPI_MSG_ERROR,
1149                      "%s: mirrored file state '%s' not supported\n",
1150                      progname, string);
1151         return -EINVAL;
1152 }
1153
1154 /**
1155  * struct mirror_args - Command-line arguments for mirror(s).
1156  * @m_count:  Number of mirrors to be created with this layout.
1157  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1158  * @m_layout: Mirror layout.
1159  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1160  * @m_next:   Point to the next node of the list.
1161  *
1162  * Command-line arguments for mirror(s) will be parsed and stored in
1163  * a linked list that consists of this structure.
1164  */
1165 struct mirror_args {
1166         __u32                   m_count;
1167         __u32                   m_flags;
1168         struct llapi_layout     *m_layout;
1169         const char              *m_file;
1170         struct mirror_args      *m_next;
1171 };
1172
1173 static int mirror_sanity_check_flags(struct llapi_layout *layout, void *unused)
1174 {
1175         uint32_t flags;
1176         int rc;
1177
1178         rc = llapi_layout_comp_flags_get(layout, &flags);
1179         if (rc)
1180                 return -errno;
1181
1182         if (flags & LCME_FL_NEG) {
1183                 fprintf(stderr, "error: %s: negative flags are not supported\n",
1184                         progname);
1185                 return -EINVAL;
1186         }
1187
1188         if (flags & LCME_FL_STALE) {
1189                 fprintf(stderr, "error: %s: setting '%s' is not supported\n",
1190                         progname, comp_flags_table[LCME_FL_STALE].cfn_name);
1191                 return -EINVAL;
1192         }
1193
1194         return LLAPI_LAYOUT_ITER_CONT;
1195 }
1196
1197 static inline int mirror_sanity_check_one(struct llapi_layout *layout)
1198 {
1199         uint64_t start, end;
1200         uint64_t pattern;
1201         int rc;
1202
1203         /* LU-10112: do not support dom+flr in phase 1 */
1204         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
1205         if (rc)
1206                 return -errno;
1207
1208         rc = llapi_layout_pattern_get(layout, &pattern);
1209         if (rc)
1210                 return -errno;
1211
1212         if (pattern == LOV_PATTERN_MDT || pattern == LLAPI_LAYOUT_MDT) {
1213                 fprintf(stderr, "error: %s: doesn't support dom+flr for now\n",
1214                         progname);
1215                 return -ENOTSUP;
1216         }
1217
1218         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_LAST);
1219         if (rc)
1220                 return -errno;
1221
1222         rc = llapi_layout_comp_extent_get(layout, &start, &end);
1223         if (rc)
1224                 return -errno;
1225
1226         if (end != LUSTRE_EOF) {
1227                 fprintf(stderr, "error: %s: mirror layout doesn't reach eof\n",
1228                         progname);
1229                 return -EINVAL;
1230         }
1231
1232         rc = llapi_layout_comp_iterate(layout, mirror_sanity_check_flags, NULL);
1233         return rc;
1234 }
1235
1236 /**
1237  * enum mirror_flags - Flags for extending a mirrored file.
1238  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1239  *             in case the victim file(s) contains the same data as the
1240  *             original mirrored file.
1241  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1242  *
1243  * Flags for extending a mirrored file.
1244  */
1245 enum mirror_flags {
1246         MF_NO_VERIFY    = 0x1,
1247         MF_DESTROY      = 0x2,
1248 };
1249
1250 /**
1251  * mirror_create_sanity_check() - Check mirror list.
1252  * @list:  A linked list that stores the mirror arguments.
1253  *
1254  * This function does a sanity check on @list for creating
1255  * a mirrored file.
1256  *
1257  * Return: 0 on success or a negative error code on failure.
1258  */
1259 static int mirror_create_sanity_check(const char *fname,
1260                                       struct mirror_args *list)
1261 {
1262         int rc = 0;
1263         bool has_m_file = false;
1264         bool has_m_layout = false;
1265
1266         if (list == NULL)
1267                 return -EINVAL;
1268
1269         if (fname) {
1270                 struct llapi_layout *layout;
1271
1272                 layout = llapi_layout_get_by_path(fname, 0);
1273                 if (!layout) {
1274                         fprintf(stderr,
1275                                 "error: %s: file '%s' couldn't get layout\n",
1276                                 progname, fname);
1277                         return -ENODATA;
1278                 }
1279
1280                 rc = mirror_sanity_check_one(layout);
1281                 llapi_layout_free(layout);
1282
1283                 if (rc)
1284                         return rc;
1285         }
1286
1287         while (list != NULL) {
1288                 if (list->m_file != NULL) {
1289                         has_m_file = true;
1290                         llapi_layout_free(list->m_layout);
1291
1292                         list->m_layout =
1293                                 llapi_layout_get_by_path(list->m_file, 0);
1294                         if (list->m_layout == NULL) {
1295                                 fprintf(stderr,
1296                                         "error: %s: file '%s' has no layout\n",
1297                                         progname, list->m_file);
1298                                 return -ENODATA;
1299                         }
1300                 } else {
1301                         has_m_layout = true;
1302                         if (list->m_layout == NULL) {
1303                                 fprintf(stderr, "error: %s: no mirror layout\n",
1304                                         progname);
1305                                 return -EINVAL;
1306                         }
1307                 }
1308
1309                 rc = mirror_sanity_check_one(list->m_layout);
1310                 if (rc)
1311                         return rc;
1312
1313                 list = list->m_next;
1314         }
1315
1316         if (has_m_file && has_m_layout) {
1317                 fprintf(stderr,
1318                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1319                         progname);
1320                 return -EINVAL;
1321         }
1322
1323         return 0;
1324 }
1325
1326 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1327 {
1328         __u32 mirror_flags = *(__u32 *)cbdata;
1329         uint32_t flags;
1330         int rc;
1331
1332         rc = llapi_layout_comp_flags_get(layout, &flags);
1333         if (rc < 0)
1334                 return rc;
1335
1336         if (!flags) {
1337                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1338                 if (rc)
1339                         return rc;
1340         }
1341
1342         return LLAPI_LAYOUT_ITER_CONT;
1343 }
1344
1345 /**
1346  * mirror_create() - Create a mirrored file.
1347  * @fname:        The file to be created.
1348  * @mirror_list:  A linked list that stores the mirror arguments.
1349  *
1350  * This function creates a mirrored file @fname with the mirror(s)
1351  * from @mirror_list.
1352  *
1353  * Return: 0 on success or a negative error code on failure.
1354  */
1355 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1356 {
1357         struct llapi_layout *layout = NULL;
1358         struct mirror_args *cur_mirror = NULL;
1359         uint16_t mirror_count = 0;
1360         int i = 0;
1361         int rc = 0;
1362
1363         rc = mirror_create_sanity_check(NULL, mirror_list);
1364         if (rc)
1365                 return rc;
1366
1367         cur_mirror = mirror_list;
1368         while (cur_mirror != NULL) {
1369                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1370                                                mirror_set_flags,
1371                                                &cur_mirror->m_flags);
1372                 if (rc) {
1373                         rc = -errno;
1374                         fprintf(stderr, "%s: failed to set mirror flags\n",
1375                                 progname);
1376                         goto error;
1377                 }
1378
1379                 for (i = 0; i < cur_mirror->m_count; i++) {
1380                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1381                         if (rc) {
1382                                 rc = -errno;
1383                                 fprintf(stderr, "error: %s: "
1384                                         "merge layout failed: %s\n",
1385                                         progname, strerror(errno));
1386                                 goto error;
1387                         }
1388                 }
1389                 mirror_count += cur_mirror->m_count;
1390                 cur_mirror = cur_mirror->m_next;
1391         }
1392
1393         if (layout == NULL) {
1394                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1395                 return -EINVAL;
1396         }
1397
1398         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1399         if (rc) {
1400                 rc = -errno;
1401                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1402                         progname, strerror(errno));
1403                 goto error;
1404         }
1405
1406         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1407                                   layout);
1408         if (rc >= 0) {
1409                 close(rc);
1410                 rc = 0;
1411         }
1412
1413 error:
1414         llapi_layout_free(layout);
1415         return rc;
1416 }
1417
1418 /**
1419  * Compare files and check lease on @fd.
1420  *
1421  * \retval bytes number of bytes are the same
1422  */
1423 static ssize_t mirror_file_compare(int fd, int fdv)
1424 {
1425         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1426         void *buf;
1427         ssize_t bytes_done = 0;
1428         ssize_t bytes_read = 0;
1429
1430         buf = malloc(buflen * 2);
1431         if (!buf)
1432                 return -ENOMEM;
1433
1434         while (1) {
1435                 if (!llapi_lease_check(fd)) {
1436                         bytes_done = -EBUSY;
1437                         break;
1438                 }
1439
1440                 bytes_read = read(fd, buf, buflen);
1441                 if (bytes_read <= 0)
1442                         break;
1443
1444                 if (bytes_read != read(fdv, buf + buflen, buflen))
1445                         break;
1446
1447                 /* XXX: should compute the checksum on each buffer and then
1448                  * compare checksum to avoid cache collision */
1449                 if (memcmp(buf, buf + buflen, bytes_read))
1450                         break;
1451
1452                 bytes_done += bytes_read;
1453         }
1454
1455         free(buf);
1456
1457         return bytes_done;
1458 }
1459
1460 static int mirror_extend_file(const char *fname, const char *victim_file,
1461                               enum mirror_flags mirror_flags)
1462 {
1463         int fd = -1;
1464         int fdv = -1;
1465         struct stat stbuf;
1466         struct stat stbuf_v;
1467         struct ll_ioc_lease *data = NULL;
1468         int rc;
1469
1470         fd = open(fname, O_RDWR);
1471         if (fd < 0) {
1472                 error_loc = "open source file";
1473                 rc = -errno;
1474                 goto out;
1475         }
1476
1477         fdv = open(victim_file, O_RDWR);
1478         if (fdv < 0) {
1479                 error_loc = "open target file";
1480                 rc = -errno;
1481                 goto out;
1482         }
1483
1484         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1485                 error_loc = "stat source or target file";
1486                 rc = -errno;
1487                 goto out;
1488         }
1489
1490         if (stbuf.st_dev != stbuf_v.st_dev) {
1491                 error_loc = "stat source and target file";
1492                 rc = -EXDEV;
1493                 goto out;
1494         }
1495
1496         /* mirrors should be of the same size */
1497         if (stbuf.st_size != stbuf_v.st_size) {
1498                 error_loc = "file sizes don't match";
1499                 rc = -EINVAL;
1500                 goto out;
1501         }
1502
1503         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1504         if (rc < 0) {
1505                 error_loc = "cannot get lease";
1506                 goto out;
1507         }
1508
1509         if (!(mirror_flags & MF_NO_VERIFY)) {
1510                 ssize_t ret;
1511                 /* mirrors should have the same contents */
1512                 ret = mirror_file_compare(fd, fdv);
1513                 if (ret != stbuf.st_size) {
1514                         error_loc = "file busy or contents don't match";
1515                         rc = ret < 0 ? ret : -EINVAL;
1516                         goto out;
1517                 }
1518         }
1519
1520         /* Get rid of caching pages from clients */
1521         rc = llapi_file_flush(fd);
1522         if (rc < 0) {
1523                 error_loc = "cannot get data version";
1524                 goto out;
1525         }
1526
1527         rc = llapi_file_flush(fdv);
1528         if (rc < 0) {
1529                 error_loc = "cannot get data version";
1530                 goto out;
1531
1532         }
1533
1534         /* Make sure we keep original atime/mtime values */
1535         rc = migrate_copy_timestamps(fd, fdv);
1536         if (rc < 0) {
1537                 error_loc = "cannot copy timestamp";
1538                 goto out;
1539         }
1540
1541         /* Atomically put lease, merge layouts and close. */
1542         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1543         if (!data) {
1544                 error_loc = "memory allocation";
1545                 goto out;
1546         }
1547         data->lil_mode = LL_LEASE_UNLCK;
1548         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1549         data->lil_count = 1;
1550         data->lil_ids[0] = fdv;
1551         rc = llapi_lease_set(fd, data);
1552         if (rc < 0) {
1553                 error_loc = "cannot merge layout";
1554                 goto out;
1555         } else if (rc == 0) {
1556                 rc = -EBUSY;
1557                 error_loc = "lost lease lock";
1558                 goto out;
1559         }
1560         rc = 0;
1561
1562 out:
1563         if (data)
1564                 free(data);
1565         if (fd >= 0)
1566                 close(fd);
1567         if (fdv >= 0)
1568                 close(fdv);
1569         if (!rc)
1570                 (void) unlink(victim_file);
1571         if (rc < 0)
1572                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1573                         progname, fname, error_loc, strerror(-rc));
1574         return rc;
1575 }
1576
1577 static int mirror_extend_layout(char *name, struct llapi_layout *layout)
1578 {
1579         struct ll_ioc_lease *data = NULL;
1580         int fd = -1;
1581         int fdv = -1;
1582         int rc;
1583
1584         rc = migrate_open_files(name, 0, NULL, layout, &fd, &fdv);
1585         if (rc < 0)
1586                 goto out;
1587
1588         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1589         if (rc < 0) {
1590                 error_loc = "cannot get lease";
1591                 goto out;
1592         }
1593
1594         rc = migrate_nonblock(fd, fdv);
1595         if (rc < 0) {
1596                 llapi_lease_release(fd);
1597                 goto out;
1598         }
1599
1600         /* Atomically put lease, merge layouts and close. */
1601         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1602         if (!data) {
1603                 error_loc = "memory allocation";
1604                 goto out;
1605         }
1606         data->lil_mode = LL_LEASE_UNLCK;
1607         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1608         data->lil_count = 1;
1609         data->lil_ids[0] = fdv;
1610         rc = llapi_lease_set(fd, data);
1611         if (rc < 0) {
1612                 error_loc = "cannot merge layout";
1613                 goto out;
1614         } else if (rc == 0) {
1615                 rc = -EBUSY;
1616                 error_loc = "lost lease lock";
1617                 goto out;
1618         }
1619         rc = 0;
1620
1621 out:
1622         if (data)
1623                 free(data);
1624         if (fd >= 0)
1625                 close(fd);
1626         if (fdv >= 0)
1627                 close(fdv);
1628         if (rc < 0)
1629                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1630                         progname, name, error_loc, strerror(-rc));
1631         return rc;
1632 }
1633
1634 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1635                          enum mirror_flags mirror_flags)
1636 {
1637         int rc;
1638
1639         rc = mirror_create_sanity_check(fname, mirror_list);
1640         if (rc)
1641                 return rc;
1642
1643         while (mirror_list) {
1644                 if (mirror_list->m_file != NULL) {
1645                         rc = mirror_extend_file(fname, mirror_list->m_file,
1646                                                 mirror_flags);
1647                 } else {
1648                         __u32 mirror_count = mirror_list->m_count;
1649
1650                         while (mirror_count > 0) {
1651                                 rc = mirror_extend_layout(fname,
1652                                                         mirror_list->m_layout);
1653                                 if (rc)
1654                                         break;
1655
1656                                 --mirror_count;
1657                         }
1658                 }
1659                 if (rc)
1660                         break;
1661
1662                 mirror_list = mirror_list->m_next;
1663         }
1664
1665         return rc;
1666 }
1667
1668 static int verify_id(struct llapi_layout *layout, void *cbdata)
1669 {
1670         uint32_t id;
1671         int rc;
1672
1673         rc = llapi_layout_mirror_id_get(layout, &id);
1674         if (rc < 0)
1675                 return rc;
1676
1677         if ((__u16)id == *(__u16 *)cbdata)
1678                 return LLAPI_LAYOUT_ITER_STOP;
1679
1680         return LLAPI_LAYOUT_ITER_CONT;
1681 }
1682
1683 static int mirror_split(const char *fname, __u16 mirror_id,
1684                         enum mirror_flags mflags, const char *victim_file)
1685 {
1686         struct llapi_layout *layout;
1687         char parent[PATH_MAX];
1688         char victim[PATH_MAX];
1689         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
1690         char *ptr;
1691         struct ll_ioc_lease *data;
1692         uint16_t mirror_count;
1693         int mdt_index;
1694         int fd, fdv;
1695         int rc;
1696
1697         /* check fname contains mirror with mirror_id */
1698         layout = llapi_layout_get_by_path(fname, 0);
1699         if (!layout) {
1700                 fprintf(stderr,
1701                         "error %s: file '%s' couldn't get layout\n",
1702                         progname, fname);
1703                 return -EINVAL;
1704         }
1705
1706         rc = mirror_sanity_check_one(layout);
1707         if (rc)
1708                 goto free_layout;
1709
1710         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
1711         if (rc) {
1712                 fprintf(stderr,
1713                         "error %s: file '%s' couldn't get mirror count\n",
1714                         progname, fname);
1715                 goto free_layout;
1716         }
1717         if (mirror_count < 2) {
1718                 fprintf(stderr,
1719                         "error %s: file '%s' has %d component, cannot split\n",
1720                         progname, fname, mirror_count);
1721                 goto free_layout;
1722         }
1723
1724         rc = llapi_layout_comp_iterate(layout, verify_id, &mirror_id);
1725         if (rc < 0) {
1726                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
1727                         progname, fname);
1728                 goto free_layout;
1729         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
1730                 fprintf(stderr,
1731                      "error %s: file '%s' does not contain mirror with id %u\n",
1732                         progname, fname, mirror_id);
1733                 goto free_layout;
1734         }
1735
1736         fd = open(fname, O_RDWR);
1737         if (fd < 0) {
1738                 fprintf(stderr,
1739                         "error %s: open file '%s' failed: %s\n",
1740                         progname, fname, strerror(errno));
1741                 goto free_layout;
1742         }
1743
1744         /* get victim file directory pathname */
1745         if (strlen(fname) > sizeof(parent) - 1) {
1746                 fprintf(stderr, "error %s: file name of '%s' too long\n",
1747                         progname, fname);
1748                 rc = -ERANGE;
1749                 goto close_fd;
1750         }
1751         strncpy(parent, fname, sizeof(parent));
1752         ptr = strrchr(parent, '/');
1753         if (ptr == NULL) {
1754                 if (getcwd(parent, sizeof(parent)) == NULL) {
1755                         fprintf(stderr, "error %s: getcwd failed: %s\n",
1756                                 progname, strerror(errno));
1757                         rc = -errno;
1758                         goto close_fd;
1759                 }
1760         } else {
1761                 if (ptr == parent)
1762                         ptr = parent + 1;
1763                 *ptr = '\0';
1764         }
1765
1766         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
1767         if (rc < 0) {
1768                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
1769                         progname, fname);
1770                 goto close_fd;
1771         }
1772
1773         if (victim_file == NULL) {
1774                 /* use a temp file to store the splitted layout */
1775                 if (mflags & MF_DESTROY) {
1776                         fdv = llapi_create_volatile_idx(parent, mdt_index,
1777                                                         O_LOV_DELAY_CREATE);
1778                 } else {
1779                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
1780                                  fname, mirror_id);
1781                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
1782                 }
1783         } else {
1784                 /* user specified victim file */
1785                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
1786         }
1787
1788         if (fdv < 0) {
1789                 fprintf(stderr,
1790                         "error %s: create victim file failed: %s\n",
1791                         progname, strerror(errno));
1792                 goto close_fd;
1793         }
1794
1795         /* get lease lock of fname */
1796         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
1797         if (rc < 0) {
1798                 fprintf(stderr,
1799                         "error %s: cannot get lease of file '%s': %d\n",
1800                         progname, fname, rc);
1801                 goto close_victim;
1802         }
1803
1804         /* Atomatically put lease, split layouts and close. */
1805         data = malloc(offsetof(typeof(*data), lil_ids[2]));
1806         if (!data) {
1807                 rc = -ENOMEM;
1808                 goto close_victim;
1809         }
1810
1811         data->lil_mode = LL_LEASE_UNLCK;
1812         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
1813         data->lil_count = 2;
1814         data->lil_ids[0] = fdv;
1815         data->lil_ids[1] = mirror_id;
1816         rc = llapi_lease_set(fd, data);
1817         if (rc <= 0) {
1818                 if (rc == 0) /* lost lease lock */
1819                         rc = -EBUSY;
1820                 fprintf(stderr,
1821                         "error %s: cannot split '%s': %s\n",
1822                         progname, fname, strerror(-rc));
1823         } else {
1824                 rc = 0;
1825         }
1826         free(data);
1827
1828 close_victim:
1829         close(fdv);
1830 close_fd:
1831         close(fd);
1832 free_layout:
1833         llapi_layout_free(layout);
1834         return rc;
1835 }
1836
1837 /**
1838  * Parse a string containing an target index list into an array of integers.
1839  *
1840  * The input string contains a comma delimited list of individual
1841  * indices and ranges, for example "1,2-4,7". Add the indices into the
1842  * \a tgts array and remove duplicates.
1843  *
1844  * \param[out] tgts    array to store indices in
1845  * \param[in] size     size of \a tgts array
1846  * \param[in] offset   starting index in \a tgts
1847  * \param[in] arg      string containing OST index list
1848  *
1849  * \retval positive    number of indices in \a tgts
1850  * \retval -EINVAL     unable to parse \a arg
1851  */
1852 static int parse_targets(__u32 *tgts, int size, int offset, char *arg)
1853 {
1854         int rc;
1855         int nr = offset;
1856         int slots = size - offset;
1857         char *ptr = NULL;
1858         bool end_of_loop;
1859
1860         if (arg == NULL)
1861                 return -EINVAL;
1862
1863         end_of_loop = false;
1864         while (!end_of_loop) {
1865                 int start_index;
1866                 int end_index;
1867                 int i;
1868                 char *endptr = NULL;
1869
1870                 rc = -EINVAL;
1871
1872                 ptr = strchrnul(arg, ',');
1873
1874                 end_of_loop = *ptr == '\0';
1875                 *ptr = '\0';
1876
1877                 start_index = strtol(arg, &endptr, 0);
1878                 if (endptr == arg) /* no data at all */
1879                         break;
1880                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
1881                         break;
1882
1883                 end_index = start_index;
1884                 if (*endptr == '-') {
1885                         end_index = strtol(endptr + 1, &endptr, 0);
1886                         if (*endptr != '\0')
1887                                 break;
1888                         if (end_index < start_index)
1889                                 break;
1890                 }
1891
1892                 for (i = start_index; i <= end_index && slots > 0; i++) {
1893                         int j;
1894
1895                         /* remove duplicate */
1896                         for (j = 0; j < offset; j++) {
1897                                 if (tgts[j] == i)
1898                                         break;
1899                         }
1900                         if (j == offset) { /* no duplicate */
1901                                 tgts[nr++] = i;
1902                                 --slots;
1903                         }
1904                 }
1905                 if (slots == 0 && i < end_index)
1906                         break;
1907
1908                 *ptr = ',';
1909                 arg = ++ptr;
1910                 offset = nr;
1911                 rc = 0;
1912         }
1913         if (!end_of_loop && ptr != NULL)
1914                 *ptr = ',';
1915
1916         return rc < 0 ? rc : nr;
1917 }
1918
1919 struct lfs_setstripe_args {
1920         unsigned long long       lsa_comp_end;
1921         unsigned long long       lsa_stripe_size;
1922         long long                lsa_stripe_count;
1923         long long                lsa_stripe_off;
1924         __u32                    lsa_comp_flags;
1925         __u32                    lsa_comp_neg_flags;
1926         unsigned long long       lsa_pattern;
1927         unsigned int             lsa_mirror_count;
1928         int                      lsa_nr_tgts;
1929         bool                     lsa_first_comp;
1930         __u32                   *lsa_tgts;
1931         char                    *lsa_pool_name;
1932 };
1933
1934 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
1935 {
1936         unsigned int mirror_count = lsa->lsa_mirror_count;
1937         bool first_comp = lsa->lsa_first_comp;
1938
1939         memset(lsa, 0, sizeof(*lsa));
1940
1941         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
1942         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
1943         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
1944         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
1945         lsa->lsa_pool_name = NULL;
1946
1947         lsa->lsa_mirror_count = mirror_count;
1948         lsa->lsa_first_comp = first_comp;
1949 }
1950
1951 /**
1952  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
1953  * @lsa: Stripe options to be initialized and inherited.
1954  *
1955  * This function initializes stripe options in @lsa and inherit
1956  * stripe_size, stripe_count and OST pool_name options.
1957  *
1958  * Return: void.
1959  */
1960 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
1961 {
1962         unsigned long long stripe_size;
1963         long long stripe_count;
1964         char *pool_name = NULL;
1965
1966         stripe_size = lsa->lsa_stripe_size;
1967         stripe_count = lsa->lsa_stripe_count;
1968         pool_name = lsa->lsa_pool_name;
1969
1970         setstripe_args_init(lsa);
1971
1972         lsa->lsa_stripe_size = stripe_size;
1973         lsa->lsa_stripe_count = stripe_count;
1974         lsa->lsa_pool_name = pool_name;
1975 }
1976
1977 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
1978 {
1979         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
1980                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
1981                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
1982                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
1983                 lsa->lsa_pool_name != NULL ||
1984                 lsa->lsa_comp_end != 0);
1985 }
1986
1987 /**
1988  * comp_args_to_layout() - Create or extend a composite layout.
1989  * @composite:       Pointer to the composite layout.
1990  * @lsa:             Stripe options for the new component.
1991  *
1992  * This function creates or extends a composite layout by adding a new
1993  * component with stripe options from @lsa.
1994  *
1995  * Return: 0 on success or an error code on failure.
1996  */
1997 static int comp_args_to_layout(struct llapi_layout **composite,
1998                                struct lfs_setstripe_args *lsa,
1999                                bool set_extent)
2000 {
2001         struct llapi_layout *layout = *composite;
2002         uint64_t prev_end = 0;
2003         int i = 0, rc;
2004
2005         if (layout == NULL) {
2006                 layout = llapi_layout_alloc();
2007                 if (layout == NULL) {
2008                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2009                                 strerror(errno));
2010                         return -ENOMEM;
2011                 }
2012                 *composite = layout;
2013         } else {
2014                 uint64_t start;
2015
2016                 /* Get current component extent, current component
2017                  * must be the tail component. */
2018                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2019                 if (rc) {
2020                         fprintf(stderr, "Get comp extent failed. %s\n",
2021                                 strerror(errno));
2022                         return rc;
2023                 }
2024
2025                 if (lsa->lsa_first_comp)
2026                         prev_end = 0;
2027
2028                 if (lsa->lsa_first_comp)
2029                         rc = llapi_layout_add_first_comp(layout);
2030                 else
2031                         rc = llapi_layout_comp_add(layout);
2032                 if (rc) {
2033                         fprintf(stderr, "Add component failed. %s\n",
2034                                 strerror(errno));
2035                         return rc;
2036                 }
2037         }
2038         /* reset lsa_first_comp */
2039         lsa->lsa_first_comp = false;
2040
2041         if (set_extent) {
2042                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2043                                                   lsa->lsa_comp_end);
2044                 if (rc) {
2045                         fprintf(stderr, "Set extent [%lu, %llu) failed. %s\n",
2046                                 prev_end, lsa->lsa_comp_end, strerror(errno));
2047                         return rc;
2048                 }
2049         }
2050
2051         /* Data-on-MDT component setting */
2052         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2053                 /* In case of Data-on-MDT patterns the only extra option
2054                  * applicable is stripe size option. */
2055                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2056                         fprintf(stderr, "Option 'stripe-count' can't be "
2057                                 "specified with Data-on-MDT component: %lld\n",
2058                                 lsa->lsa_stripe_count);
2059                         return -EINVAL;
2060                 }
2061                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT) {
2062                         fprintf(stderr, "Option 'stripe-size' can't be "
2063                                 "specified with Data-on-MDT component: %llu\n",
2064                                 lsa->lsa_stripe_size);
2065                         return -EINVAL;
2066                 }
2067                 if (lsa->lsa_nr_tgts != 0) {
2068                         fprintf(stderr, "Option 'ost-list' can't be specified "
2069                                 "with Data-on-MDT component: '%i'\n",
2070                                 lsa->lsa_nr_tgts);
2071                         return -EINVAL;
2072                 }
2073                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2074                         fprintf(stderr, "Option 'stripe-offset' can't be "
2075                                 "specified with Data-on-MDT component: %lld\n",
2076                                 lsa->lsa_stripe_off);
2077                         return -EINVAL;
2078                 }
2079                 if (lsa->lsa_pool_name != 0) {
2080                         fprintf(stderr, "Option 'pool' can't be specified "
2081                                 "with Data-on-MDT component: '%s'\n",
2082                                 lsa->lsa_pool_name);
2083                         return -EINVAL;
2084                 }
2085
2086                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2087                 if (rc) {
2088                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2089                                 lsa->lsa_pattern, strerror(errno));
2090                         return rc;
2091                 }
2092                 /* Data-on-MDT component has always single stripe up to end */
2093                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2094         }
2095
2096         rc = llapi_layout_stripe_size_set(layout, lsa->lsa_stripe_size);
2097         if (rc) {
2098                 fprintf(stderr, "Set stripe size %llu failed: %s\n",
2099                         lsa->lsa_stripe_size, strerror(errno));
2100                 return rc;
2101         }
2102
2103         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2104         if (rc) {
2105                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2106                         lsa->lsa_stripe_count, strerror(errno));
2107                 return rc;
2108         }
2109
2110         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2111         if (rc) {
2112                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2113                         lsa->lsa_comp_flags, strerror(errno));
2114                 return rc;
2115         }
2116
2117         if (lsa->lsa_pool_name != NULL) {
2118                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2119                 if (rc) {
2120                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2121                                 lsa->lsa_pool_name, strerror(errno));
2122                         return rc;
2123                 }
2124         } else {
2125                 rc = llapi_layout_pool_name_set(layout, "");
2126                 if (rc) {
2127                         fprintf(stderr, "Clear pool name failed: %s\n",
2128                                 strerror(errno));
2129                         return rc;
2130                 }
2131         }
2132
2133         if (lsa->lsa_nr_tgts > 0) {
2134                 if (lsa->lsa_stripe_count > 0 &&
2135                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2136                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2137                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2138                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2139                                 lsa->lsa_stripe_count, lsa->lsa_nr_tgts);
2140                         return -EINVAL;
2141                 }
2142                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2143                         rc = llapi_layout_ost_index_set(layout, i,
2144                                                         lsa->lsa_tgts[i]);
2145                         if (rc)
2146                                 break;
2147                 }
2148         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2149                    lsa->lsa_stripe_off != -1) {
2150                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2151         }
2152         if (rc) {
2153                 fprintf(stderr, "Set ost index %d failed. %s\n",
2154                         i, strerror(errno));
2155                 return rc;
2156         }
2157
2158         return 0;
2159 }
2160
2161 static int build_component(struct llapi_layout **layout,
2162                            struct lfs_setstripe_args *lsa, bool set_extent)
2163 {
2164         int rc;
2165
2166         rc = comp_args_to_layout(layout, lsa, set_extent);
2167         if (rc)
2168                 return rc;
2169
2170         if (lsa->lsa_mirror_count > 0) {
2171                 rc = llapi_layout_mirror_count_set(*layout,
2172                                                    lsa->lsa_mirror_count);
2173                 if (rc)
2174                         return rc;
2175
2176                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2177                 if (rc)
2178                         return rc;
2179                 lsa->lsa_mirror_count = 0;
2180         }
2181
2182         return rc;
2183 }
2184
2185 static int build_layout_from_yaml_node(struct cYAML *node,
2186                                        struct llapi_layout **layout,
2187                                        struct lfs_setstripe_args *lsa,
2188                                        __u32 *osts)
2189 {
2190         char *string;
2191         int rc = 0;
2192
2193         while (node) {
2194                 string = node->cy_string;
2195                 /* skip leading lmm_ if present, to simplify parsing */
2196                 if (string != NULL && strncmp(string, "lmm_", 4) == 0)
2197                         string += 4;
2198
2199                 if (node->cy_type == CYAML_TYPE_STRING) {
2200                         if (!strcmp(string, "lcme_extent.e_end")) {
2201                                 if (!strcmp(node->cy_valuestring, "EOF") ||
2202                                     !strcmp(node->cy_valuestring, "eof"))
2203                                         lsa->lsa_comp_end = LUSTRE_EOF;
2204                         } else if (!strcmp(string, "pool")) {
2205                                 lsa->lsa_pool_name = node->cy_valuestring;
2206                         } else if (!strcmp(string, "pattern")) {
2207                                 if (!strcmp(node->cy_valuestring, "mdt"))
2208                                         lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2209                         }
2210                 } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2211                         if (!strcmp(string, "lcm_mirror_count")) {
2212                                 lsa->lsa_mirror_count = node->cy_valueint;
2213                         } else if (!strcmp(string, "lcme_extent.e_start")) {
2214                                 if (node->cy_valueint != 0 || *layout != NULL) {
2215                                         rc = build_component(layout, lsa, true);
2216                                         if (rc)
2217                                                 return rc;
2218                                 }
2219
2220                                 if (node->cy_valueint == 0)
2221                                         lsa->lsa_first_comp = true;
2222
2223                                 /* initialize lsa */
2224                                 setstripe_args_init(lsa);
2225                                 lsa->lsa_tgts = osts;
2226                         } else if (!strcmp(string, "lcme_extent.e_end")) {
2227                                 if (node->cy_valueint == -1)
2228                                         lsa->lsa_comp_end = LUSTRE_EOF;
2229                                 else
2230                                         lsa->lsa_comp_end = node->cy_valueint;
2231                         } else if (!strcmp(string, "stripe_count")) {
2232                                 lsa->lsa_stripe_count = node->cy_valueint;
2233                         } else if (!strcmp(string, "stripe_size")) {
2234                                 lsa->lsa_stripe_size = node->cy_valueint;
2235                         } else if (!strcmp(string, "stripe_offset")) {
2236                                 lsa->lsa_stripe_off = node->cy_valueint;
2237                         } else if (!strcmp(string, "l_ost_idx")) {
2238                                 osts[lsa->lsa_nr_tgts] = node->cy_valueint;
2239                                 lsa->lsa_nr_tgts++;
2240                         }
2241                 } else if (node->cy_type == CYAML_TYPE_OBJECT) {
2242                         /* go deep to sub blocks */
2243                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2244                                                          lsa, osts);
2245                         if (rc)
2246                                 return rc;
2247                 }
2248                 node = node->cy_next;
2249         }
2250
2251         return rc;
2252 }
2253
2254 static int lfs_comp_create_from_yaml(char *template,
2255                                      struct llapi_layout **layout,
2256                                      struct lfs_setstripe_args *lsa,
2257                                      __u32 *osts)
2258 {
2259         struct cYAML *tree = NULL, *err_rc = NULL;
2260         int rc = 0;
2261
2262         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
2263         if (!tree) {
2264                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
2265                         progname, template);
2266                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
2267                                   "can't parse", &err_rc);
2268                 cYAML_print_tree2file(stderr, err_rc);
2269                 cYAML_free_tree(err_rc);
2270                 rc = -EINVAL;
2271                 goto err;
2272         }
2273
2274         /* initialize lsa for plain file */
2275         setstripe_args_init(lsa);
2276         lsa->lsa_tgts = osts;
2277
2278         rc = build_layout_from_yaml_node(tree, layout, lsa, osts);
2279         if (rc) {
2280                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
2281                         progname, template);
2282                 goto err;
2283         } else {
2284                 rc = build_component(layout, lsa, *layout != NULL);
2285         }
2286         /* clean clean lsa */
2287         setstripe_args_init(lsa);
2288
2289 err:
2290         if (tree)
2291                 cYAML_free_tree(tree);
2292         return rc;
2293 }
2294
2295 /* In 'lfs setstripe --component-add' mode, we need to fetch the extent
2296  * end of the last component in the existing file, and adjust the
2297  * first extent start of the components to be added accordingly. */
2298 static int adjust_first_extent(char *fname, struct llapi_layout *layout)
2299 {
2300         struct llapi_layout *head;
2301         uint64_t start, end, stripe_size, prev_end = 0;
2302         int rc;
2303
2304         if (layout == NULL) {
2305                 fprintf(stderr,
2306                         "%s setstripe: layout must be specified\n",
2307                         progname);
2308                 return -EINVAL;
2309         }
2310
2311         errno = 0;
2312         head = llapi_layout_get_by_path(fname, 0);
2313         if (head == NULL) {
2314                 fprintf(stderr,
2315                         "%s setstripe: cannot read layout from '%s': %s\n",
2316                         progname, fname, strerror(errno));
2317                 return -EINVAL;
2318         } else if (errno == ENODATA) {
2319                 /* file without LOVEA, this component-add will be turned
2320                  * into a component-create. */
2321                 llapi_layout_free(head);
2322                 return -ENODATA;
2323         } else if (!llapi_layout_is_composite(head)) {
2324                 fprintf(stderr, "%s setstripe: '%s' not a composite file\n",
2325                         progname, fname);
2326                 llapi_layout_free(head);
2327                 return -EINVAL;
2328         }
2329
2330         rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
2331         if (rc) {
2332                 fprintf(stderr, "%s setstripe: cannot get prev extent: %s\n",
2333                         progname, strerror(errno));
2334                 llapi_layout_free(head);
2335                 return rc;
2336         }
2337
2338         llapi_layout_free(head);
2339
2340         /* Make sure we use the first component of the layout to be added. */
2341         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
2342         if (rc < 0) {
2343                 fprintf(stderr,
2344                         "%s setstripe: cannot move component cursor: %s\n",
2345                         progname, strerror(errno));
2346                 return rc;
2347         }
2348
2349         rc = llapi_layout_comp_extent_get(layout, &start, &end);
2350         if (rc) {
2351                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2352                         progname, strerror(errno));
2353                 return rc;
2354         }
2355
2356         if (start > prev_end || end <= prev_end) {
2357                 fprintf(stderr,
2358                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
2359                         progname, start, end, prev_end);
2360                 return -EINVAL;
2361         }
2362
2363         rc = llapi_layout_stripe_size_get(layout, &stripe_size);
2364         if (rc) {
2365                 fprintf(stderr, "%s setstripe: cannot get stripe size: %s\n",
2366                         progname, strerror(errno));
2367                 return rc;
2368         }
2369
2370         if (stripe_size != LLAPI_LAYOUT_DEFAULT &&
2371             (prev_end & (stripe_size - 1))) {
2372                 fprintf(stderr,
2373                         "%s setstripe: stripe size %lu not aligned with %lu\n",
2374                         progname, stripe_size, prev_end);
2375                 return -EINVAL;
2376         }
2377
2378         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
2379         if (rc) {
2380                 fprintf(stderr,
2381                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
2382                         progname, prev_end, end, strerror(errno));
2383                 return rc;
2384         }
2385
2386         return 0;
2387 }
2388
2389 static inline bool arg_is_eof(char *arg)
2390 {
2391         return !strncmp(arg, "-1", strlen("-1")) ||
2392                !strncmp(arg, "EOF", strlen("EOF")) ||
2393                !strncmp(arg, "eof", strlen("eof"));
2394 }
2395
2396 /**
2397  * lfs_mirror_alloc() - Allocate a mirror argument structure.
2398  *
2399  * Return: Valid mirror_args pointer on success and
2400  *         NULL if memory allocation fails.
2401  */
2402 static struct mirror_args *lfs_mirror_alloc(void)
2403 {
2404         struct mirror_args *mirror = NULL;
2405
2406         while (1) {
2407                 mirror = calloc(1, sizeof(*mirror));
2408                 if (mirror != NULL)
2409                         break;
2410
2411                 sleep(1);
2412         }
2413
2414         return mirror;
2415 }
2416
2417 /**
2418  * lfs_mirror_free() - Free memory allocated for a mirror argument
2419  *                     structure.
2420  * @mirror: Previously allocated mirror argument structure by
2421  *          lfs_mirror_alloc().
2422  *
2423  * Free memory allocated for @mirror.
2424  *
2425  * Return: void.
2426  */
2427 static void lfs_mirror_free(struct mirror_args *mirror)
2428 {
2429         if (mirror->m_layout != NULL)
2430                 llapi_layout_free(mirror->m_layout);
2431         free(mirror);
2432 }
2433
2434 /**
2435  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
2436  * @mirror_list: Previously allocated mirror list.
2437  *
2438  * Free memory allocated for @mirror_list.
2439  *
2440  * Return: void.
2441  */
2442 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
2443 {
2444         struct mirror_args *next_mirror = NULL;
2445
2446         while (mirror_list != NULL) {
2447                 next_mirror = mirror_list->m_next;
2448                 lfs_mirror_free(mirror_list);
2449                 mirror_list = next_mirror;
2450         }
2451 }
2452
2453 enum {
2454         LFS_POOL_OPT = 3,
2455         LFS_COMP_COUNT_OPT,
2456         LFS_COMP_START_OPT,
2457         LFS_COMP_FLAGS_OPT,
2458         LFS_COMP_DEL_OPT,
2459         LFS_COMP_SET_OPT,
2460         LFS_COMP_ADD_OPT,
2461         LFS_COMP_NO_VERIFY_OPT,
2462         LFS_PROJID_OPT,
2463         LFS_MIRROR_FLAGS_OPT,
2464         LFS_MIRROR_ID_OPT,
2465         LFS_MIRROR_STATE_OPT,
2466         LFS_LAYOUT_COPY,
2467 };
2468
2469 /* functions */
2470 static int lfs_setstripe_internal(int argc, char **argv,
2471                                   enum setstripe_origin opc)
2472 {
2473         struct lfs_setstripe_args        lsa = { 0 };
2474         struct llapi_stripe_param       *param = NULL;
2475         struct find_param                migrate_mdt_param = {
2476                 .fp_max_depth = -1,
2477                 .fp_mdt_index = -1,
2478         };
2479         char                            *fname;
2480         int                              result = 0;
2481         int                              result2 = 0;
2482         char                            *end;
2483         int                              c;
2484         int                              delete = 0;
2485         char                            *mdt_idx_arg = NULL;
2486         unsigned long long               size_units = 1;
2487         bool                             migrate_mode = false;
2488         bool                             migration_block = false;
2489         __u64                            migration_flags = 0;
2490         __u32                            osts[LOV_MAX_STRIPE_COUNT] = { 0 };
2491         int                              comp_del = 0, comp_set = 0;
2492         int                              comp_add = 0;
2493         __u32                            comp_id = 0;
2494         struct llapi_layout             *layout = NULL;
2495         struct llapi_layout             **lpp = &layout;
2496         bool                             mirror_mode = false;
2497         bool                             has_m_file = false;
2498         __u32                            mirror_count = 0;
2499         enum mirror_flags                mirror_flags = 0;
2500         struct mirror_args              *mirror_list = NULL;
2501         struct mirror_args              *new_mirror = NULL;
2502         struct mirror_args              *last_mirror = NULL;
2503         __u16                            mirror_id = 0;
2504         char                             cmd[PATH_MAX];
2505         bool from_yaml = false;
2506         bool from_copy = false;
2507         char *template = NULL;
2508
2509         struct option long_opts[] = {
2510 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
2511         /* --block is only valid in migrate mode */
2512         { .val = 'b',   .name = "block",        .has_arg = no_argument },
2513         { .val = LFS_COMP_ADD_OPT,
2514                         .name = "comp-add",     .has_arg = no_argument },
2515         { .val = LFS_COMP_ADD_OPT,
2516                         .name = "component-add", .has_arg = no_argument },
2517         { .val = LFS_COMP_DEL_OPT,
2518                         .name = "comp-del",     .has_arg = no_argument },
2519         { .val = LFS_COMP_DEL_OPT,
2520                         .name = "component-del", .has_arg = no_argument },
2521         { .val = LFS_COMP_FLAGS_OPT,
2522                         .name = "comp-flags",   .has_arg = required_argument },
2523         { .val = LFS_COMP_FLAGS_OPT,
2524                         .name = "component-flags",
2525                                                 .has_arg = required_argument },
2526         { .val = LFS_COMP_SET_OPT,
2527                         .name = "comp-set",     .has_arg = no_argument },
2528         { .val = LFS_COMP_SET_OPT,
2529                         .name = "component-set",
2530                                                 .has_arg = no_argument},
2531         { .val = LFS_COMP_NO_VERIFY_OPT,
2532                         .name = "no-verify",    .has_arg = no_argument},
2533         { .val = LFS_MIRROR_FLAGS_OPT,
2534                         .name = "flags",        .has_arg = required_argument},
2535         { .val = LFS_MIRROR_ID_OPT,
2536                         .name = "mirror-id",    .has_arg = required_argument},
2537         { .val = LFS_LAYOUT_COPY,
2538                         .name = "copy",         .has_arg = required_argument},
2539         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
2540         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
2541 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
2542         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
2543         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
2544         /* --non-direct is only valid in migrate mode */
2545         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
2546         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
2547         { .val = 'E',   .name = "component-end",
2548                                                 .has_arg = required_argument},
2549         { .val = 'f',   .name = "file",         .has_arg = required_argument },
2550 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
2551 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
2552 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
2553 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
2554         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
2555         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
2556         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
2557         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
2558         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
2559         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
2560         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
2561         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
2562         /* --non-block is only valid in migrate mode */
2563         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
2564         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
2565         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
2566 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2567         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
2568         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
2569 #endif
2570         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
2571 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
2572 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
2573 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
2574 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
2575         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
2576         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
2577 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
2578 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
2579 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
2580 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
2581         /* --verbose is only valid in migrate mode */
2582         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
2583         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
2584         { .name = NULL } };
2585
2586         setstripe_args_init(&lsa);
2587
2588         migrate_mode = (opc == SO_MIGRATE);
2589         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
2590
2591         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
2592         progname = cmd;
2593         while ((c = getopt_long(argc, argv, "bc:dDE:f:i:I:m:N::no:p:L:s:S:vy:",
2594                                 long_opts, NULL)) >= 0) {
2595                 switch (c) {
2596                 case 0:
2597                         /* Long options. */
2598                         break;
2599                 case LFS_COMP_ADD_OPT:
2600                         comp_add = 1;
2601                         break;
2602                 case LFS_COMP_DEL_OPT:
2603                         comp_del = 1;
2604                         break;
2605                 case LFS_COMP_FLAGS_OPT:
2606                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
2607                                                 &lsa.lsa_comp_neg_flags);
2608                         if (result != 0)
2609                                 goto usage_error;
2610                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
2611                                 fprintf(stderr, "%s: inverted flags are not supported\n",
2612                                         progname);
2613                                 goto usage_error;
2614                         }
2615                         if (lsa.lsa_comp_neg_flags & LCME_FL_STALE) {
2616                                 fprintf(stderr,
2617                                         "%s: cannot clear 'stale' flags from component. Please use lfs-mirror-resync(1) instead\n",
2618                                         progname);
2619                                 result = -EINVAL;
2620                                 goto error;
2621                         }
2622
2623                         break;
2624                 case LFS_COMP_SET_OPT:
2625                         comp_set = 1;
2626                         break;
2627                 case LFS_COMP_NO_VERIFY_OPT:
2628                         mirror_flags |= MF_NO_VERIFY;
2629                         break;
2630                 case LFS_MIRROR_ID_OPT:
2631                         mirror_id = strtoul(optarg, &end, 0);
2632                         if (*end != '\0' || mirror_id == 0) {
2633                                 fprintf(stderr,
2634                                         "%s %s: invalid mirror ID '%s'\n",
2635                                         progname, argv[0], optarg);
2636                                 goto usage_error;
2637                         }
2638                         break;
2639                 case LFS_MIRROR_FLAGS_OPT: {
2640                         __u32 flags;
2641
2642                         if (!mirror_mode || !last_mirror) {
2643                                 fprintf(stderr, "error: %s: --flags must be specified with --mirror-count|-N option\n",
2644                                         progname);
2645                                 goto usage_error;
2646                         }
2647
2648                         result = comp_str2flags(optarg, &last_mirror->m_flags,
2649                                                 &flags);
2650                         if (result != 0)
2651                                 goto usage_error;
2652
2653                         if (flags) {
2654                                 fprintf(stderr, "%s: inverted flags are not supported\n",
2655                                         progname);
2656                                 result = -EINVAL;
2657                                 goto usage_error;
2658                         }
2659                         if (last_mirror->m_flags & ~LCME_USER_FLAGS) {
2660                                 fprintf(stderr,
2661                                         "%s: unsupported mirror flags: %s\n",
2662                                         progname, optarg);
2663                                 result = -EINVAL;
2664                                 goto error;
2665                         }
2666                         break;
2667                 }
2668                 case LFS_LAYOUT_COPY:
2669                         from_copy = true;
2670                         template = optarg;
2671                         break;
2672                 case 'b':
2673                         if (!migrate_mode) {
2674                                 fprintf(stderr,
2675                                         "%s %s: -b|--block valid only for migrate command\n",
2676                                         progname, argv[0]);
2677                                 goto usage_error;
2678                         }
2679                         migration_block = true;
2680                         break;
2681                 case 'c':
2682                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
2683                         if (*end != '\0') {
2684                                 fprintf(stderr,
2685                                         "%s %s: invalid stripe count '%s'\n",
2686                                         progname, argv[0], optarg);
2687                                 goto usage_error;
2688                         }
2689
2690                         if (lsa.lsa_stripe_count == -1)
2691                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
2692                         break;
2693                 case 'd':
2694                         /* delete the default striping pattern */
2695                         delete = 1;
2696                         if (opc == SO_MIRROR_SPLIT) {
2697                                 if (has_m_file) {
2698                                         fprintf(stderr,
2699                                               "%s %s: -d cannot used with -f\n",
2700                                                 progname, argv[0]);
2701                                         goto usage_error;
2702                                 }
2703                                 mirror_flags |= MF_DESTROY;
2704                         }
2705                         break;
2706                 case 'D':
2707                         if (!migrate_mode) {
2708                                 fprintf(stderr,
2709                                         "%s %s: -D|--non-direct is valid "
2710                                         "only for migrate command\n",
2711                                         progname, argv[0]);
2712                                 goto usage_error;
2713                         }
2714                         migration_flags |= MIGRATION_NONDIRECT;
2715                         break;
2716                 case 'E':
2717                         if (lsa.lsa_comp_end != 0) {
2718                                 result = comp_args_to_layout(lpp, &lsa, true);
2719                                 if (result) {
2720                                         fprintf(stderr,
2721                                                 "%s %s: invalid layout\n",
2722                                                 progname, argv[0]);
2723                                         goto usage_error;
2724                                 }
2725
2726                                 setstripe_args_init_inherit(&lsa);
2727                         }
2728
2729                         if (arg_is_eof(optarg)) {
2730                                 lsa.lsa_comp_end = LUSTRE_EOF;
2731                         } else {
2732                                 result = llapi_parse_size(optarg,
2733                                                         &lsa.lsa_comp_end,
2734                                                         &size_units, 0);
2735                                 if (result) {
2736                                         fprintf(stderr,
2737                                                 "%s %s: invalid component end '%s'\n",
2738                                                 progname, argv[0], optarg);
2739                                         goto usage_error;
2740                                 }
2741                         }
2742                         break;
2743                 case 'i':
2744                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
2745                         if (*end != '\0') {
2746                                 fprintf(stderr,
2747                                         "%s %s: invalid stripe offset '%s'\n",
2748                                         progname, argv[0], optarg);
2749                                 goto usage_error;
2750                         }
2751                         if (lsa.lsa_stripe_off == -1)
2752                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2753                         break;
2754                 case 'I':
2755                         comp_id = strtoul(optarg, &end, 0);
2756                         if (*end != '\0' || comp_id == 0 ||
2757                             comp_id > LCME_ID_MAX) {
2758                                 fprintf(stderr,
2759                                         "%s %s: invalid component ID '%s'\n",
2760                                         progname, argv[0], optarg);
2761                                 goto usage_error;
2762                         }
2763                         break;
2764                 case 'f':
2765                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
2766                                 fprintf(stderr,
2767                                         "error: %s: invalid option: %s\n",
2768                                         progname, argv[optopt + 1]);
2769                                 goto usage_error;
2770                         }
2771                         if (opc == SO_MIRROR_EXTEND) {
2772                                 if (last_mirror == NULL) {
2773                                         fprintf(stderr,
2774                                 "error: %s: '-N' must exist in front of '%s'\n",
2775                                                 progname, argv[optopt + 1]);
2776                                         goto usage_error;
2777                                 }
2778                                 last_mirror->m_file = optarg;
2779                                 last_mirror->m_count = 1;
2780                         } else {
2781                                 /* mirror split */
2782                                 if (mirror_list == NULL)
2783                                         mirror_list = lfs_mirror_alloc();
2784                                 mirror_list->m_file = optarg;
2785                         }
2786                         has_m_file = true;
2787                         break;
2788                 case 'L':
2789                         if (strcmp(argv[optind - 1], "mdt") == 0) {
2790                                 /* Can be only the first component */
2791                                 if (layout != NULL) {
2792                                         result = -EINVAL;
2793                                         fprintf(stderr, "error: 'mdt' layout "
2794                                                 "can be only the first one\n");
2795                                         goto error;
2796                                 }
2797                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
2798                                         result = -EFBIG;
2799                                         fprintf(stderr, "error: 'mdt' layout "
2800                                                 "size is too big\n");
2801                                         goto error;
2802                                 }
2803                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
2804                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
2805                                 result = -EINVAL;
2806                                 fprintf(stderr, "error: layout '%s' is "
2807                                         "unknown, supported layouts are: "
2808                                         "'mdt', 'raid0'\n", argv[optind]);
2809                                 goto error;
2810                         }
2811                         break;
2812                 case 'm':
2813                         if (!migrate_mode) {
2814                                 fprintf(stderr,
2815                                         "%s %s: -m|--mdt-index valid only for migrate command\n",
2816                                         progname, argv[0]);
2817                                 goto usage_error;
2818                         }
2819                         mdt_idx_arg = optarg;
2820                         break;
2821                 case 'n':
2822                         if (!migrate_mode) {
2823                                 fprintf(stderr,
2824                                         "%s %s: -n|--non-block valid only for migrate command\n",
2825                                         progname, argv[0]);
2826                                 goto usage_error;
2827                         }
2828                         migration_flags |= MIGRATION_NONBLOCK;
2829                         break;
2830                 case 'N':
2831                         if (opc == SO_SETSTRIPE) {
2832                                 opc = SO_MIRROR_CREATE;
2833                                 mirror_mode = true;
2834                         }
2835                         mirror_count = 1;
2836                         if (optarg != NULL) {
2837                                 mirror_count = strtoul(optarg, &end, 0);
2838                                 if (*end != '\0' || mirror_count == 0) {
2839                                         fprintf(stderr,
2840                                                 "error: %s: bad mirror count: %s\n",
2841                                                 progname, optarg);
2842                                         result = -EINVAL;
2843                                         goto error;
2844                                 }
2845                         }
2846
2847                         new_mirror = lfs_mirror_alloc();
2848                         new_mirror->m_count = mirror_count;
2849
2850                         if (mirror_list == NULL)
2851                                 mirror_list = new_mirror;
2852
2853                         if (last_mirror != NULL) {
2854                                 /* wrap up last mirror */
2855                                 if (lsa.lsa_comp_end == 0)
2856                                         lsa.lsa_comp_end = LUSTRE_EOF;
2857
2858                                 result = comp_args_to_layout(lpp, &lsa, true);
2859                                 if (result) {
2860                                         lfs_mirror_free(new_mirror);
2861                                         goto error;
2862                                 }
2863
2864                                 setstripe_args_init_inherit(&lsa);
2865
2866                                 last_mirror->m_next = new_mirror;
2867                         }
2868
2869                         last_mirror = new_mirror;
2870                         lpp = &last_mirror->m_layout;
2871                         break;
2872                 case 'o':
2873 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2874                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
2875                                 fprintf(stderr, "warning: '--ost-list' is "
2876                                         "deprecated, use '--ost' instead\n");
2877 #endif
2878                         lsa.lsa_nr_tgts = parse_targets(osts,
2879                                                 sizeof(osts) / sizeof(__u32),
2880                                                 lsa.lsa_nr_tgts, optarg);
2881                         if (lsa.lsa_nr_tgts < 0) {
2882                                 fprintf(stderr,
2883                                         "%s %s: invalid OST target(s) '%s'\n",
2884                                         progname, argv[0], optarg);
2885                                 goto usage_error;
2886                         }
2887
2888                         lsa.lsa_tgts = osts;
2889                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
2890                                 lsa.lsa_stripe_off = osts[0];
2891                         break;
2892                 case 'p':
2893                         if (optarg == NULL)
2894                                 goto usage_error;
2895                         lsa.lsa_pool_name = optarg;
2896
2897                         if (strlen(lsa.lsa_pool_name) == 0 ||
2898                             strncmp(lsa.lsa_pool_name, "none",
2899                                     LOV_MAXPOOLNAME) == 0)
2900                                 lsa.lsa_pool_name = NULL;
2901                         break;
2902                 case 'S':
2903                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
2904                                                   &size_units, 0);
2905                         if (result) {
2906                                 fprintf(stderr,
2907                                         "%s %s: invalid stripe size '%s'\n",
2908                                         progname, argv[0], optarg);
2909                                 goto usage_error;
2910                         }
2911                         break;
2912                 case 'v':
2913                         if (!migrate_mode) {
2914                                 fprintf(stderr,
2915                                         "%s %s: -v|--verbose valid only for migrate command\n",
2916                                         progname, argv[0]);
2917                                 goto usage_error;
2918                         }
2919                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
2920                         break;
2921                 case 'y':
2922                         from_yaml = true;
2923                         template = optarg;
2924                         break;
2925                 default:
2926                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
2927                                 progname, argv[0], argv[optind - 1]);
2928                         goto usage_error;
2929                 }
2930         }
2931
2932         fname = argv[optind];
2933
2934         if (optind == argc) {
2935                 fprintf(stderr, "%s %s: FILE must be specified\n",
2936                         progname, argv[0]);
2937                 goto usage_error;
2938         }
2939
2940         if (mirror_mode && mirror_count == 0) {
2941                 fprintf(stderr,
2942                         "error: %s: --mirror-count|-N option is required\n",
2943                         progname);
2944                 result = -EINVAL;
2945                 goto error;
2946         }
2947
2948         if (mirror_mode) {
2949                 if (lsa.lsa_comp_end == 0)
2950                         lsa.lsa_comp_end = LUSTRE_EOF;
2951         }
2952
2953         if (lsa.lsa_comp_end != 0) {
2954                 result = comp_args_to_layout(lpp, &lsa, true);
2955                 if (result)
2956                         goto error;
2957         }
2958
2959         if (mirror_flags & MF_NO_VERIFY) {
2960                 if (opc != SO_MIRROR_EXTEND) {
2961                         fprintf(stderr,
2962                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
2963                                 progname);
2964                         result = -EINVAL;
2965                         goto error;
2966                 } else if (!has_m_file) {
2967                         fprintf(stderr,
2968                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
2969                                 progname);
2970                         result = -EINVAL;
2971                         goto error;
2972                 }
2973         }
2974
2975         /* Only LCME_FL_INIT flags is used in PFL, and it shouldn't be
2976          * altered by user space tool, so we don't need to support the
2977          * --component-set for this moment. */
2978         if (comp_set && !comp_id) {
2979                 fprintf(stderr, "%s %s: --component-set doesn't have component-id set\n",
2980                         progname, argv[0]);
2981                 goto usage_error;
2982         }
2983
2984         if ((delete + comp_set + comp_del + comp_add) > 1) {
2985                 fprintf(stderr,
2986                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
2987                         progname, argv[0]);
2988                 goto usage_error;
2989         }
2990
2991         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
2992                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
2993                 fprintf(stderr,
2994                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
2995                         progname, argv[0]);
2996                 goto usage_error;
2997         }
2998
2999         if ((comp_set || comp_del) &&
3000             (setstripe_args_specified(&lsa) || layout != NULL)) {
3001                 fprintf(stderr,
3002                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
3003                         progname, argv[0]);
3004                 goto usage_error;
3005         }
3006
3007         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
3008                 fprintf(stderr,
3009                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
3010                         progname, argv[0]);
3011                 goto usage_error;
3012         }
3013
3014         if (comp_add || comp_del) {
3015                 struct stat st;
3016
3017                 result = lstat(fname, &st);
3018                 if (result == 0 && S_ISDIR(st.st_mode)) {
3019                         fprintf(stderr,
3020                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
3021                                 progname);
3022                         goto usage_error;
3023                 }
3024
3025                 if (mirror_mode) {
3026                         fprintf(stderr, "error: %s: can't use --component-add "
3027                                 "or --component-del for mirror operation\n",
3028                                 progname);
3029                         goto usage_error;
3030                 }
3031         }
3032
3033         if (comp_add) {
3034                 if (layout == NULL) {
3035                         fprintf(stderr,
3036                                 "%s %s: option -E must be specified with --component-add\n",
3037                                 progname, argv[0]);
3038                         goto usage_error;
3039                 }
3040
3041                 result = adjust_first_extent(fname, layout);
3042                 if (result == -ENODATA)
3043                         comp_add = 0;
3044                 else if (result != 0)
3045                         goto error;
3046         }
3047
3048         if (from_yaml && from_copy) {
3049                 fprintf(stderr,
3050                         "%s: can't specify --yaml and --copy together\n",
3051                         progname);
3052                 goto error;
3053         }
3054
3055         if ((from_yaml || from_copy) &&
3056             (setstripe_args_specified(&lsa) || layout != NULL)) {
3057                 fprintf(stderr, "error: %s: can't specify --yaml with "
3058                         "-c, -S, -i, -o, -p or -E options.\n",
3059                         argv[0]);
3060                 goto error;
3061         }
3062
3063         if (mdt_idx_arg != NULL && optind > 3) {
3064                 fprintf(stderr,
3065                         "%s %s: option -m cannot be used with other options\n",
3066                         progname, argv[0]);
3067                 goto usage_error;
3068         }
3069
3070         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
3071                 fprintf(stderr,
3072                         "%s %s: options --non-block and --block are mutually exclusive\n",
3073                         progname, argv[0]);
3074                 goto usage_error;
3075         }
3076
3077         if (!comp_del && !comp_set && comp_id != 0) {
3078                 fprintf(stderr,
3079                         "%s %s: option -I can only be used with --component-del\n",
3080                         progname, argv[0]);
3081                 goto usage_error;
3082         }
3083
3084         if (mdt_idx_arg != NULL) {
3085                 /* initialize migrate mdt parameters */
3086                 migrate_mdt_param.fp_mdt_index = strtoul(mdt_idx_arg, &end, 0);
3087                 if (*end != '\0') {
3088                         fprintf(stderr, "%s %s: invalid MDT index '%s'\n",
3089                                 progname, argv[0], mdt_idx_arg);
3090                         goto usage_error;
3091                 }
3092                 migrate_mdt_param.fp_migrate = 1;
3093         } else if (layout == NULL) {
3094                 /* initialize stripe parameters */
3095                 param = calloc(1, offsetof(typeof(*param),
3096                                lsp_osts[lsa.lsa_nr_tgts]));
3097                 if (param == NULL) {
3098                         fprintf(stderr,
3099                                 "%s %s: cannot allocate memory for parameters: %s\n",
3100                                 progname, argv[0], strerror(ENOMEM));
3101                         result = -ENOMEM;
3102                         goto error;
3103                 }
3104
3105                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
3106                         param->lsp_stripe_size = lsa.lsa_stripe_size;
3107                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
3108                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
3109                                 param->lsp_stripe_count = -1;
3110                         else
3111                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
3112                 }
3113                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3114                         param->lsp_stripe_offset = -1;
3115                 else
3116                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
3117                 param->lsp_pool = lsa.lsa_pool_name;
3118                 param->lsp_is_specific = false;
3119                 if (lsa.lsa_nr_tgts > 0) {
3120                         if (lsa.lsa_stripe_count > 0 &&
3121                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3122                             lsa.lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
3123                             lsa.lsa_nr_tgts != lsa.lsa_stripe_count) {
3124                                 fprintf(stderr, "error: %s: stripe count %lld "
3125                                         "doesn't match the number of OSTs: %d\n"
3126                                         , argv[0], lsa.lsa_stripe_count,
3127                                         lsa.lsa_nr_tgts);
3128                                 free(param);
3129                                 goto usage_error;
3130                         }
3131
3132                         param->lsp_is_specific = true;
3133                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
3134                         memcpy(param->lsp_osts, osts,
3135                                sizeof(*osts) * lsa.lsa_nr_tgts);
3136                 }
3137         }
3138
3139         if (from_yaml) {
3140                 /* generate a layout from a YAML template */
3141                 result = lfs_comp_create_from_yaml(template, &layout,
3142                                                    &lsa, osts);
3143                 if (result) {
3144                         fprintf(stderr, "error: %s: can't create composite "
3145                                 "layout from template file %s\n",
3146                                 argv[0], template);
3147                         goto error;
3148                 }
3149         } else if (from_copy) {
3150                 layout = llapi_layout_get_by_path(template, 0);
3151                 if (layout == NULL) {
3152                         fprintf(stderr,
3153                             "%s: can't create composite layout from file %s.\n",
3154                                 progname, template);
3155                         goto error;
3156                 }
3157         }
3158
3159         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
3160                 if (mdt_idx_arg != NULL) {
3161                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
3162                 } else if (migrate_mode) {
3163                         result = lfs_migrate(fname, migration_flags, param,
3164                                              layout);
3165                 } else if (comp_set != 0) {
3166                         result = lfs_component_set(fname, comp_id,
3167                                                    lsa.lsa_comp_flags,
3168                                                    lsa.lsa_comp_neg_flags);
3169                 } else if (comp_del != 0) {
3170                         result = lfs_component_del(fname, comp_id,
3171                                                    lsa.lsa_comp_flags,
3172                                                    lsa.lsa_comp_neg_flags);
3173                 } else if (comp_add != 0) {
3174                         result = lfs_component_add(fname, layout);
3175                 } else if (opc == SO_MIRROR_CREATE) {
3176                         result = mirror_create(fname, mirror_list);
3177                 } else if (opc == SO_MIRROR_EXTEND) {
3178                         result = mirror_extend(fname, mirror_list,
3179                                                mirror_flags);
3180                 } else if (opc == SO_MIRROR_SPLIT) {
3181                         if (mirror_id == 0) {
3182                                 fprintf(stderr,
3183                                         "%s %s: no mirror id is specified\n",
3184                                         progname, argv[0]);
3185                                 goto usage_error;
3186                         }
3187                         result = mirror_split(fname, mirror_id, mirror_flags,
3188                                               has_m_file ? mirror_list->m_file :
3189                                               NULL);
3190                 } else if (layout != NULL) {
3191                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
3192                                                       0666, layout);
3193                         if (result >= 0) {
3194                                 close(result);
3195                                 result = 0;
3196                         }
3197                 } else {
3198                         result = llapi_file_open_param(fname,
3199                                                        O_CREAT | O_WRONLY,
3200                                                        0666, param);
3201                         if (result >= 0) {
3202                                 close(result);
3203                                 result = 0;
3204                         }
3205                 }
3206                 if (result) {
3207                         /* Save the first error encountered. */
3208                         if (result2 == 0)
3209                                 result2 = result;
3210                         continue;
3211                 }
3212         }
3213
3214         free(param);
3215         llapi_layout_free(layout);
3216         lfs_mirror_list_free(mirror_list);
3217         return result2;
3218 usage_error:
3219         result = CMD_HELP;
3220 error:
3221         llapi_layout_free(layout);
3222         lfs_mirror_list_free(mirror_list);
3223         return result;
3224 }
3225
3226 static int lfs_poollist(int argc, char **argv)
3227 {
3228         if (argc != 2)
3229                 return CMD_HELP;
3230
3231         return llapi_poollist(argv[1]);
3232 }
3233
3234 static int set_time(time_t *time, time_t *set, char *str)
3235 {
3236         time_t t;
3237         int res = 0;
3238         char *endptr;
3239
3240         if (str[0] == '+')
3241                 res = 1;
3242         else if (str[0] == '-')
3243                 res = -1;
3244
3245         if (res)
3246                 str++;
3247
3248         t = strtol(str, &endptr, 0);
3249         if (*endptr != '\0') {
3250                 fprintf(stderr,
3251                         "%s find: bad time '%s': %s\n",
3252                         progname, str, strerror(EINVAL));
3253                 return INT_MAX;
3254         }
3255         if (*time < t * 24 * 60 * 60) {
3256                 if (res != 0)
3257                         str--;
3258                 fprintf(stderr,
3259                         "%s find: bad time '%s': too large\n",
3260                         progname, str);
3261                 return INT_MAX;
3262         }
3263
3264         *set = *time - t * 24 * 60 * 60;
3265         return res;
3266 }
3267
3268 static int name2uid(unsigned int *id, const char *name)
3269 {
3270         struct passwd *passwd;
3271
3272         passwd = getpwnam(name);
3273         if (passwd == NULL)
3274                 return -ENOENT;
3275         *id = passwd->pw_uid;
3276
3277         return 0;
3278 }
3279
3280 static int name2gid(unsigned int *id, const char *name)
3281 {
3282         struct group *group;
3283
3284         group = getgrnam(name);
3285         if (group == NULL)
3286                 return -ENOENT;
3287         *id = group->gr_gid;
3288
3289         return 0;
3290 }
3291
3292 static inline int name2projid(unsigned int *id, const char *name)
3293 {
3294         return -ENOTSUP;
3295 }
3296
3297 static int uid2name(char **name, unsigned int id)
3298 {
3299         struct passwd *passwd;
3300
3301         passwd = getpwuid(id);
3302         if (passwd == NULL)
3303                 return -ENOENT;
3304         *name = passwd->pw_name;
3305
3306         return 0;
3307 }
3308
3309 static inline int gid2name(char **name, unsigned int id)
3310 {
3311         struct group *group;
3312
3313         group = getgrgid(id);
3314         if (group == NULL)
3315                 return -ENOENT;
3316         *name = group->gr_name;
3317
3318         return 0;
3319 }
3320
3321 static int name2layout(__u32 *layout, char *name)
3322 {
3323         char *ptr, *layout_name;
3324
3325         *layout = 0;
3326         for (ptr = name; ; ptr = NULL) {
3327                 layout_name = strtok(ptr, ",");
3328                 if (layout_name == NULL)
3329                         break;
3330                 if (strcmp(layout_name, "released") == 0)
3331                         *layout |= LOV_PATTERN_F_RELEASED;
3332                 else if (strcmp(layout_name, "raid0") == 0)
3333                         *layout |= LOV_PATTERN_RAID0;
3334                 else if (strcmp(layout_name, "mdt") == 0)
3335                         *layout |= LOV_PATTERN_MDT;
3336                 else
3337                         return -1;
3338         }
3339         return 0;
3340 }
3341
3342 static int lfs_find(int argc, char **argv)
3343 {
3344         int c, rc;
3345         int ret = 0;
3346         time_t t;
3347         struct find_param param = {
3348                 .fp_max_depth = -1,
3349                 .fp_quiet = 1,
3350         };
3351         struct option long_opts[] = {
3352         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
3353         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
3354         { .val = LFS_COMP_COUNT_OPT,
3355                         .name = "comp-count",   .has_arg = required_argument },
3356         { .val = LFS_COMP_COUNT_OPT,
3357                         .name = "component-count",
3358                                                 .has_arg = required_argument },
3359         { .val = LFS_COMP_FLAGS_OPT,
3360                         .name = "comp-flags",   .has_arg = required_argument },
3361         { .val = LFS_COMP_FLAGS_OPT,
3362                         .name = "component-flags",
3363                                                 .has_arg = required_argument },
3364         { .val = LFS_COMP_START_OPT,
3365                         .name = "comp-start",   .has_arg = required_argument },
3366         { .val = LFS_COMP_START_OPT,
3367                         .name = "component-start",
3368                                                 .has_arg = required_argument },
3369         { .val = LFS_MIRROR_STATE_OPT,
3370                         .name = "mirror-state", .has_arg = required_argument },
3371         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
3372         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
3373         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
3374 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
3375         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
3376         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
3377         { .val = 'E',   .name = "component-end",
3378                                                 .has_arg = required_argument },
3379 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3380         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
3381         { .val = 'G',   .name = "group",        .has_arg = required_argument },
3382         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
3383         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
3384         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
3385 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
3386         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3387         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
3388         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
3389         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
3390         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
3391         { .val = 'n',   .name = "name",         .has_arg = required_argument },
3392         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
3393 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
3394         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
3395         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
3396         /* no short option for pool yet, can be 'p' after 2.18 */
3397         { .val = LFS_POOL_OPT,
3398                         .name = "pool",         .has_arg = required_argument },
3399         { .val = '0',   .name = "print0",       .has_arg = no_argument },
3400         { .val = 'P',   .name = "print",        .has_arg = no_argument },
3401         { .val = LFS_PROJID_OPT,
3402                         .name = "projid",       .has_arg = required_argument },
3403 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3404 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3405 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3406         { .val = 's',   .name = "size",         .has_arg = required_argument },
3407         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3408         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3409         { .val = 't',   .name = "type",         .has_arg = required_argument },
3410         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
3411         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
3412         { .val = 'U',   .name = "user",         .has_arg = required_argument },
3413 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
3414 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
3415         { .name = NULL } };
3416         int pathstart = -1;
3417         int pathend = -1;
3418         int neg_opt = 0;
3419         time_t *xtime;
3420         int *xsign;
3421         int isoption;
3422         char *endptr;
3423
3424         time(&t);
3425
3426         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
3427         while ((c = getopt_long_only(argc, argv,
3428                         "-0A:b:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:v",
3429                         long_opts, NULL)) >= 0) {
3430                 xtime = NULL;
3431                 xsign = NULL;
3432                 if (neg_opt)
3433                         --neg_opt;
3434                 /* '!' is part of option */
3435                 /* when getopt_long_only() finds a string which is not
3436                  * an option nor a known option argument it returns 1
3437                  * in that case if we already have found pathstart and pathend
3438                  * (i.e. we have the list of pathnames),
3439                  * the only supported value is "!"
3440                  */
3441                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
3442                 if (!isoption && pathend != -1) {
3443                         fprintf(stderr, "err: %s: filename|dirname must either "
3444                                         "precede options or follow options\n",
3445                                         argv[0]);
3446                         ret = CMD_HELP;
3447                         goto err;
3448                 }
3449                 if (!isoption && pathstart == -1)
3450                         pathstart = optind - 1;
3451                 if (isoption && pathstart != -1 && pathend == -1)
3452                         pathend = optind - 2;
3453                 switch (c) {
3454                 case 0:
3455                         /* Long options. */
3456                         break;
3457                 case 1:
3458                         /* unknown; opt is "!" or path component,
3459                          * checking done above.
3460                          */
3461                         if (strcmp(optarg, "!") == 0)
3462                                 neg_opt = 2;
3463                         break;
3464                 case 'A':
3465                         xtime = &param.fp_atime;
3466                         xsign = &param.fp_asign;
3467                         param.fp_exclude_atime = !!neg_opt;
3468                         /* no break, this falls through to 'C' for ctime */
3469                 case 'C':
3470                         if (c == 'C') {
3471                                 xtime = &param.fp_ctime;
3472                                 xsign = &param.fp_csign;
3473                                 param.fp_exclude_ctime = !!neg_opt;
3474                         }
3475                         /* no break, this falls through to 'M' for mtime */
3476                 case 'M':
3477                         if (c == 'M') {
3478                                 xtime = &param.fp_mtime;
3479                                 xsign = &param.fp_msign;
3480                                 param.fp_exclude_mtime = !!neg_opt;
3481                         }
3482                         rc = set_time(&t, xtime, optarg);
3483                         if (rc == INT_MAX) {
3484                                 ret = -1;
3485                                 goto err;
3486                         }
3487                         if (rc)
3488                                 *xsign = rc;
3489                         break;
3490                 case 'b':
3491                         if (optarg[0] == '+') {
3492                                 param.fp_blocks_sign = -1;
3493                                 optarg++;
3494                         } else if (optarg[0] == '-') {
3495                                 param.fp_blocks_sign =  1;
3496                                 optarg++;
3497                         }
3498
3499                         param.fp_blocks_units = 1024;
3500                         ret = llapi_parse_size(optarg, &param.fp_blocks,
3501                                                &param.fp_blocks_units, 0);
3502                         if (ret) {
3503                                 fprintf(stderr, "error: bad blocks '%s'\n",
3504                                         optarg);
3505                                 goto err;
3506                         }
3507                         param.fp_check_blocks = 1;
3508                         param.fp_exclude_blocks = !!neg_opt;
3509                         break;
3510                 case LFS_COMP_COUNT_OPT:
3511                         if (optarg[0] == '+') {
3512                                 param.fp_comp_count_sign = -1;
3513                                 optarg++;
3514                         } else if (optarg[0] == '-') {
3515                                 param.fp_comp_count_sign =  1;
3516                                 optarg++;
3517                         }
3518
3519                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
3520                         if (*endptr != '\0') {
3521                                 fprintf(stderr, "error: bad component count "
3522                                         "'%s'\n", optarg);
3523                                 goto err;
3524                         }
3525                         param.fp_check_comp_count = 1;
3526                         param.fp_exclude_comp_count = !!neg_opt;
3527                         break;
3528                 case LFS_COMP_FLAGS_OPT:
3529                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
3530                                             &param.fp_comp_neg_flags);
3531                         if (rc) {
3532                                 fprintf(stderr, "error: bad component flags "
3533                                         "'%s'\n", optarg);
3534                                 goto err;
3535                         }
3536                         param.fp_check_comp_flags = 1;
3537                         if (neg_opt) {
3538                                 __u32 flags = param.fp_comp_neg_flags;
3539                                 param.fp_comp_neg_flags = param.fp_comp_flags;
3540                                 param.fp_comp_flags = flags;
3541                         }
3542                         break;
3543                 case LFS_COMP_START_OPT:
3544                         if (optarg[0] == '+') {
3545                                 param.fp_comp_start_sign = -1;
3546                                 optarg++;
3547                         } else if (optarg[0] == '-') {
3548                                 param.fp_comp_start_sign =  1;
3549                                 optarg++;
3550                         }
3551
3552                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
3553                                               &param.fp_comp_start_units, 0);
3554                         if (rc) {
3555                                 fprintf(stderr, "error: bad component start "
3556                                         "'%s'\n", optarg);
3557                                 goto err;
3558                         }
3559                         param.fp_check_comp_start = 1;
3560                         param.fp_exclude_comp_start = !!neg_opt;
3561                         break;
3562                 case LFS_MIRROR_STATE_OPT:
3563                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
3564                                               &param.fp_mirror_neg_state);
3565                         if (rc) {
3566                                 fprintf(stderr,
3567                                         "error: bad mirrored file state '%s'\n",
3568                                         optarg);
3569                                 goto err;
3570                         }
3571                         param.fp_check_mirror_state = 1;
3572                         if (neg_opt) {
3573                                 __u16 state = param.fp_mirror_neg_state;
3574                                 param.fp_mirror_neg_state =
3575                                         param.fp_mirror_state;
3576                                 param.fp_mirror_state = state;
3577                         }
3578                         break;
3579                 case 'c':
3580                         if (optarg[0] == '+') {
3581                                 param.fp_stripe_count_sign = -1;
3582                                 optarg++;
3583                         } else if (optarg[0] == '-') {
3584                                 param.fp_stripe_count_sign =  1;
3585                                 optarg++;
3586                         }
3587
3588                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
3589                         if (*endptr != '\0') {
3590                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
3591                                         optarg);
3592                                 ret = -1;
3593                                 goto err;
3594                         }
3595                         param.fp_check_stripe_count = 1;
3596                         param.fp_exclude_stripe_count = !!neg_opt;
3597                         break;
3598                 case 'D':
3599                         param.fp_max_depth = strtol(optarg, 0, 0);
3600                         break;
3601                 case 'E':
3602                         if (optarg[0] == '+') {
3603                                 param.fp_comp_end_sign = -1;
3604                                 optarg++;
3605                         } else if (optarg[0] == '-') {
3606                                 param.fp_comp_end_sign =  1;
3607                                 optarg++;
3608                         }
3609
3610                         if (arg_is_eof(optarg)) {
3611                                 param.fp_comp_end = LUSTRE_EOF;
3612                                 param.fp_comp_end_units = 1;
3613                                 rc = 0;
3614                         } else {
3615                                 rc = llapi_parse_size(optarg,
3616                                                 &param.fp_comp_end,
3617                                                 &param.fp_comp_end_units, 0);
3618                         }
3619                         if (rc) {
3620                                 fprintf(stderr, "error: bad component end "
3621                                         "'%s'\n", optarg);
3622                                 goto err;
3623                         }
3624                         param.fp_check_comp_end = 1;
3625                         param.fp_exclude_comp_end = !!neg_opt;
3626                         break;
3627                 case 'g':
3628                 case 'G':
3629                         rc = name2gid(&param.fp_gid, optarg);
3630                         if (rc) {
3631                                 param.fp_gid = strtoul(optarg, &endptr, 10);
3632                                 if (*endptr != '\0') {
3633                                         fprintf(stderr, "Group/GID: %s cannot "
3634                                                 "be found.\n", optarg);
3635                                         ret = -1;
3636                                         goto err;
3637                                 }
3638                         }
3639                         param.fp_exclude_gid = !!neg_opt;
3640                         param.fp_check_gid = 1;
3641                         break;
3642                 case 'H':
3643                         param.fp_hash_type = check_hashtype(optarg);
3644                         if (param.fp_hash_type == 0) {
3645                                 fprintf(stderr, "error: bad hash_type '%s'\n",
3646                                         optarg);
3647                                 ret = -1;
3648                                 goto err;
3649                         }
3650                         param.fp_check_hash_type = 1;
3651                         param.fp_exclude_hash_type = !!neg_opt;
3652                         break;
3653                 case 'L':
3654                         ret = name2layout(&param.fp_layout, optarg);
3655                         if (ret)
3656                                 goto err;
3657                         param.fp_exclude_layout = !!neg_opt;
3658                         param.fp_check_layout = 1;
3659                         break;
3660                 case 'u':
3661                 case 'U':
3662                         rc = name2uid(&param.fp_uid, optarg);
3663                         if (rc) {
3664                                 param.fp_uid = strtoul(optarg, &endptr, 10);
3665                                 if (*endptr != '\0') {
3666                                         fprintf(stderr, "User/UID: %s cannot "
3667                                                 "be found.\n", optarg);
3668                                         ret = -1;
3669                                         goto err;
3670                                 }
3671                         }
3672                         param.fp_exclude_uid = !!neg_opt;
3673                         param.fp_check_uid = 1;
3674                         break;
3675                 case 'n':
3676                         param.fp_pattern = (char *)optarg;
3677                         param.fp_exclude_pattern = !!neg_opt;
3678                         break;
3679                 case 'N':
3680                         if (optarg[0] == '+') {
3681                                 param.fp_mirror_count_sign = -1;
3682                                 optarg++;
3683                         } else if (optarg[0] == '-') {
3684                                 param.fp_mirror_count_sign =  1;
3685                                 optarg++;
3686                         }
3687
3688                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
3689                         if (*endptr != '\0') {
3690                                 fprintf(stderr,
3691                                         "error: bad mirror count '%s'\n",
3692                                         optarg);
3693                                 goto err;
3694                         }
3695                         param.fp_check_mirror_count = 1;
3696                         param.fp_exclude_mirror_count = !!neg_opt;
3697                         break;
3698                 case 'm':
3699                 case 'i':
3700                 case 'O': {
3701                         char *buf, *token, *next, *p;
3702                         int len = 1;
3703                         void *tmp;
3704
3705                         buf = strdup(optarg);
3706                         if (buf == NULL) {
3707                                 ret = -ENOMEM;
3708                                 goto err;
3709                         }
3710
3711                         param.fp_exclude_obd = !!neg_opt;
3712
3713                         token = buf;
3714                         while (token && *token) {
3715                                 token = strchr(token, ',');
3716                                 if (token) {
3717                                         len++;
3718                                         token++;
3719                                 }
3720                         }
3721                         if (c == 'm') {
3722                                 param.fp_exclude_mdt = !!neg_opt;
3723                                 param.fp_num_alloc_mdts += len;
3724                                 tmp = realloc(param.fp_mdt_uuid,
3725                                               param.fp_num_alloc_mdts *
3726                                               sizeof(*param.fp_mdt_uuid));
3727                                 if (tmp == NULL) {
3728                                         ret = -ENOMEM;
3729                                         goto err_free;
3730                                 }
3731
3732                                 param.fp_mdt_uuid = tmp;
3733                         } else {
3734                                 param.fp_exclude_obd = !!neg_opt;
3735                                 param.fp_num_alloc_obds += len;
3736                                 tmp = realloc(param.fp_obd_uuid,
3737                                               param.fp_num_alloc_obds *
3738                                               sizeof(*param.fp_obd_uuid));
3739                                 if (tmp == NULL) {
3740                                         ret = -ENOMEM;
3741                                         goto err_free;
3742                                 }
3743
3744                                 param.fp_obd_uuid = tmp;
3745                         }
3746                         for (token = buf; token && *token; token = next) {
3747                                 struct obd_uuid *puuid;
3748                                 if (c == 'm') {
3749                                         puuid =
3750                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
3751                                 } else {
3752                                         puuid =
3753                                         &param.fp_obd_uuid[param.fp_num_obds++];
3754                                 }
3755                                 p = strchr(token, ',');
3756                                 next = 0;
3757                                 if (p) {
3758                                         *p = 0;
3759                                         next = p+1;
3760                                 }
3761
3762                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
3763                                         ret = -E2BIG;
3764                                         goto err_free;
3765                                 }
3766
3767                                 strncpy(puuid->uuid, token,
3768                                         sizeof(puuid->uuid));
3769                         }
3770 err_free:
3771                         if (buf)
3772                                 free(buf);
3773                         break;
3774                 }
3775 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
3776                 case 'p':
3777 #endif
3778                 case LFS_POOL_OPT:
3779                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
3780                                 fprintf(stderr,
3781                                         "Pool name %s is too long (max %d)\n",
3782                                         optarg, LOV_MAXPOOLNAME);
3783                                 ret = -1;
3784                                 goto err;
3785                         }
3786                         /*
3787                          * We do check for empty pool because empty pool
3788                          * is used to find V1 LOV attributes
3789                          */
3790                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
3791                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
3792                         param.fp_exclude_pool = !!neg_opt;
3793                         param.fp_check_pool = 1;
3794                         break;
3795 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
3796                 case 'p': /* want this for --pool, to match getstripe/find */
3797                         fprintf(stderr,
3798                                 "warning: -p deprecated, use --print0 or -0\n");
3799 #endif
3800                 case '0':
3801                         param.fp_zero_end = 1;
3802                         break;
3803                 case 'P': /* we always print, this option is a no-op */
3804                         break;
3805                 case LFS_PROJID_OPT:
3806                         rc = name2projid(&param.fp_projid, optarg);
3807                         if (rc) {
3808                                 param.fp_projid = strtoul(optarg, &endptr, 10);
3809                                 if (*endptr != '\0') {
3810                                         fprintf(stderr,
3811                                                 "Invalid project ID: %s",
3812                                                 optarg);
3813                                         ret = -1;
3814                                         goto err;
3815                                 }
3816                         }
3817                         param.fp_exclude_projid = !!neg_opt;
3818                         param.fp_check_projid = 1;
3819                         break;
3820                 case 's':
3821                         if (optarg[0] == '+') {
3822                                 param.fp_size_sign = -1;
3823                                 optarg++;
3824                         } else if (optarg[0] == '-') {
3825                                 param.fp_size_sign =  1;
3826                                 optarg++;
3827                         }
3828
3829                         ret = llapi_parse_size(optarg, &param.fp_size,
3830                                                &param.fp_size_units, 0);
3831                         if (ret) {
3832                                 fprintf(stderr, "error: bad file size '%s'\n",
3833                                         optarg);
3834                                 goto err;
3835                         }
3836                         param.fp_check_size = 1;
3837                         param.fp_exclude_size = !!neg_opt;
3838                         break;
3839                 case 'S':
3840                         if (optarg[0] == '+') {
3841                                 param.fp_stripe_size_sign = -1;
3842                                 optarg++;
3843                         } else if (optarg[0] == '-') {
3844                                 param.fp_stripe_size_sign =  1;
3845                                 optarg++;
3846                         }
3847
3848                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
3849                                                &param.fp_stripe_size_units, 0);
3850                         if (ret) {
3851                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
3852                                         optarg);
3853                                 goto err;
3854                         }
3855                         param.fp_check_stripe_size = 1;
3856                         param.fp_exclude_stripe_size = !!neg_opt;
3857                         break;
3858                 case 't':
3859                         param.fp_exclude_type = !!neg_opt;
3860                         switch (optarg[0]) {
3861                         case 'b':
3862                                 param.fp_type = S_IFBLK;
3863                                 break;
3864                         case 'c':
3865                                 param.fp_type = S_IFCHR;
3866                                 break;
3867                         case 'd':
3868                                 param.fp_type = S_IFDIR;
3869                                 break;
3870                         case 'f':
3871                                 param.fp_type = S_IFREG;
3872                                 break;
3873                         case 'l':
3874                                 param.fp_type = S_IFLNK;
3875                                 break;
3876                         case 'p':
3877                                 param.fp_type = S_IFIFO;
3878                                 break;
3879                         case 's':
3880                                 param.fp_type = S_IFSOCK;
3881                                 break;
3882                         default:
3883                                 fprintf(stderr, "error: %s: bad type '%s'\n",
3884                                         argv[0], optarg);
3885                                 ret = CMD_HELP;
3886                                 goto err;
3887                         };
3888                         break;
3889                 case 'T':
3890                         if (optarg[0] == '+') {
3891                                 param.fp_mdt_count_sign = -1;
3892                                 optarg++;
3893                         } else if (optarg[0] == '-') {
3894                                 param.fp_mdt_count_sign =  1;
3895                                 optarg++;
3896                         }
3897
3898                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
3899                         if (*endptr != '\0') {
3900                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
3901                                         optarg);
3902                                 ret = -1;
3903                                 goto err;
3904                         }
3905                         param.fp_check_mdt_count = 1;
3906                         param.fp_exclude_mdt_count = !!neg_opt;
3907                         break;
3908                 default:
3909                         ret = CMD_HELP;
3910                         goto err;
3911                 };
3912         }
3913
3914         if (pathstart == -1) {
3915                 fprintf(stderr, "error: %s: no filename|pathname\n",
3916                         argv[0]);
3917                 ret = CMD_HELP;
3918                 goto err;
3919         } else if (pathend == -1) {
3920                 /* no options */
3921                 pathend = argc;
3922         }
3923
3924         do {
3925                 rc = llapi_find(argv[pathstart], &param);
3926                 if (rc != 0 && ret == 0)
3927                         ret = rc;
3928         } while (++pathstart < pathend);
3929
3930         if (ret)
3931                 fprintf(stderr, "error: %s failed for %s.\n",
3932                         argv[0], argv[optind - 1]);
3933 err:
3934         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
3935                 free(param.fp_obd_uuid);
3936
3937         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
3938                 free(param.fp_mdt_uuid);
3939
3940         return ret;
3941 }
3942
3943 static int lfs_getstripe_internal(int argc, char **argv,
3944                                   struct find_param *param)
3945 {
3946         struct option long_opts[] = {
3947 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3948 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
3949         { .val = LFS_COMP_COUNT_OPT,
3950                         .name = "comp-count",   .has_arg = no_argument },
3951         { .val = LFS_COMP_COUNT_OPT,
3952                 .name = "component-count",      .has_arg = no_argument },
3953         { .val = LFS_COMP_FLAGS_OPT,
3954                         .name = "comp-flags",   .has_arg = optional_argument },
3955         { .val = LFS_COMP_FLAGS_OPT,
3956                 .name = "component-flags",      .has_arg = optional_argument },
3957         { .val = LFS_COMP_START_OPT,
3958                         .name = "comp-start",   .has_arg = optional_argument },
3959         { .val = LFS_COMP_START_OPT,
3960                 .name = "component-start",      .has_arg = optional_argument },
3961         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
3962         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
3963 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
3964         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
3965         { .val = 'D',   .name = "default",      .has_arg = no_argument },
3966         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
3967         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
3968         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
3969         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
3970 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3971 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
3972         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
3973         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
3974         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
3975         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
3976         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
3977         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
3978         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
3979         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
3980 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
3981 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
3982         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
3983         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
3984         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
3985 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3986         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
3987         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
3988         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
3989         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
3990         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
3991 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3992 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3993 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3994 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3995         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
3996         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
3997         { .name = NULL } };
3998         int c, rc;
3999         char *end, *tmp;
4000
4001         while ((c = getopt_long(argc, argv, "cdDE::FghiI::LmMoO:pqrRsSvy",
4002                                 long_opts, NULL)) != -1) {
4003                 switch (c) {
4004                 case 'c':
4005                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4006                                 param->fp_verbose |= VERBOSE_COUNT;
4007                                 param->fp_max_depth = 0;
4008                         }
4009                         break;
4010                 case LFS_COMP_COUNT_OPT:
4011                         param->fp_verbose |= VERBOSE_COMP_COUNT;
4012                         param->fp_max_depth = 0;
4013                         break;
4014                 case LFS_COMP_FLAGS_OPT:
4015                         if (optarg != NULL) {
4016                                 rc = comp_str2flags(optarg,
4017                                                     &param->fp_comp_flags,
4018                                                     &param->fp_comp_neg_flags);
4019                                 if (rc != 0) {
4020                                         fprintf(stderr, "error: %s bad "
4021                                                 "component flags '%s'.\n",
4022                                                 argv[0], optarg);
4023                                         return CMD_HELP;
4024                                 }
4025                                 param->fp_check_comp_flags = 1;
4026                         } else {
4027                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
4028                                 param->fp_max_depth = 0;
4029                         }
4030                         break;
4031                 case LFS_COMP_START_OPT:
4032                         if (optarg != NULL) {
4033                                 tmp = optarg;
4034                                 if (tmp[0] == '+') {
4035                                         param->fp_comp_start_sign = -1;
4036                                         tmp++;
4037                                 } else if (tmp[0] == '-') {
4038                                         param->fp_comp_start_sign = 1;
4039                                         tmp++;
4040                                 }
4041                                 rc = llapi_parse_size(tmp,
4042                                                 &param->fp_comp_start,
4043                                                 &param->fp_comp_start_units, 0);
4044                                 if (rc != 0) {
4045                                         fprintf(stderr, "error: %s bad "
4046                                                 "component start '%s'.\n",
4047                                                 argv[0], tmp);
4048                                         return CMD_HELP;
4049                                 } else {
4050                                         param->fp_check_comp_start = 1;
4051                                 }
4052                         } else {
4053                                 param->fp_verbose |= VERBOSE_COMP_START;
4054                                 param->fp_max_depth = 0;
4055                         }
4056                         break;
4057                 case 'd':
4058                         param->fp_max_depth = 0;
4059                         break;
4060                 case 'D':
4061                         param->fp_get_default_lmv = 1;
4062                         break;
4063                 case 'E':
4064                         if (optarg != NULL) {
4065                                 tmp = optarg;
4066                                 if (tmp[0] == '+') {
4067                                         param->fp_comp_end_sign = -1;
4068                                         tmp++;
4069                                 } else if (tmp[0] == '-') {
4070                                         param->fp_comp_end_sign = 1;
4071                                         tmp++;
4072                                 }
4073
4074                                 if (arg_is_eof(tmp)) {
4075                                         param->fp_comp_end = LUSTRE_EOF;
4076                                         param->fp_comp_end_units = 1;
4077                                         rc = 0;
4078                                 } else {
4079                                         rc = llapi_parse_size(tmp,
4080                                                 &param->fp_comp_end,
4081                                                 &param->fp_comp_end_units, 0);
4082                                 }
4083                                 if (rc != 0) {
4084                                         fprintf(stderr, "error: %s bad "
4085                                                 "component end '%s'.\n",
4086                                                 argv[0], tmp);
4087                                         return CMD_HELP;
4088                                 }
4089                                 param->fp_check_comp_end = 1;
4090                         } else {
4091                                 param->fp_verbose |= VERBOSE_COMP_END;
4092                                 param->fp_max_depth = 0;
4093                         }
4094                         break;
4095                 case 'F':
4096                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4097                                 param->fp_verbose |= VERBOSE_DFID;
4098                                 param->fp_max_depth = 0;
4099                         }
4100                         break;
4101                 case 'g':
4102                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4103                                 param->fp_verbose |= VERBOSE_GENERATION;
4104                                 param->fp_max_depth = 0;
4105                         }
4106                         break;
4107                 case 'i':
4108                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4109                                 param->fp_verbose |= VERBOSE_OFFSET;
4110                                 param->fp_max_depth = 0;
4111                         }
4112                         break;
4113                 case 'I':
4114                         if (optarg != NULL) {
4115                                 param->fp_comp_id = strtoul(optarg, &end, 0);
4116                                 if (*end != '\0' || param->fp_comp_id == 0 ||
4117                                     param->fp_comp_id > LCME_ID_MAX) {
4118                                         fprintf(stderr, "error: %s bad "
4119                                                 "component id '%s'\n",
4120                                                 argv[0], optarg);
4121                                         return CMD_HELP;
4122                                 } else {
4123                                         param->fp_check_comp_id = 1;
4124                                 }
4125                         } else {
4126                                 param->fp_max_depth = 0;
4127                                 param->fp_verbose |= VERBOSE_COMP_ID;
4128                         }
4129                         break;
4130                 case 'L':
4131                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4132                                 param->fp_verbose |= VERBOSE_LAYOUT;
4133                                 param->fp_max_depth = 0;
4134                         }
4135                         break;
4136 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4137                 case 'M':
4138                         fprintf(stderr, "warning: '-M' deprecated"
4139                                 ", use '--mdt-index' or '-m' instead\n");
4140 #endif
4141                 case 'm':
4142                         if (!(param->fp_verbose & VERBOSE_DETAIL))
4143                                 param->fp_max_depth = 0;
4144                         param->fp_verbose |= VERBOSE_MDTINDEX;
4145                         break;
4146                 case 'O':
4147                         if (param->fp_obd_uuid) {
4148                                 fprintf(stderr,
4149                                         "error: %s: only one obduuid allowed",
4150                                         argv[0]);
4151                                 return CMD_HELP;
4152                         }
4153                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
4154                         break;
4155                 case 'p':
4156                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4157                                 param->fp_verbose |= VERBOSE_POOL;
4158                                 param->fp_max_depth = 0;
4159                         }
4160                         break;
4161                 case 'q':
4162                         param->fp_quiet++;
4163                         break;
4164                 case 'r':
4165                         param->fp_recursive = 1;
4166                         break;
4167                 case 'R':
4168                         param->fp_raw = 1;
4169                         break;
4170                 case 'S':
4171                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4172                                 param->fp_verbose |= VERBOSE_SIZE;
4173                                 param->fp_max_depth = 0;
4174                         }
4175                         break;
4176                 case 'v':
4177                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
4178                         break;
4179                 case 'y':
4180                         param->fp_yaml = 1;
4181                         break;
4182                 default:
4183                         return CMD_HELP;
4184                 }
4185         }
4186
4187         if (optind >= argc)
4188                 return CMD_HELP;
4189
4190         if (param->fp_recursive)
4191                 param->fp_max_depth = -1;
4192         else if (param->fp_verbose & VERBOSE_DETAIL)
4193                 param->fp_max_depth = 1;
4194
4195         if (!param->fp_verbose)
4196                 param->fp_verbose = VERBOSE_DEFAULT;
4197         if (param->fp_quiet)
4198                 param->fp_verbose = VERBOSE_OBJID;
4199
4200         do {
4201                 rc = llapi_getstripe(argv[optind], param);
4202         } while (++optind < argc && !rc);
4203
4204         if (rc)
4205                 fprintf(stderr, "error: %s failed for %s.\n",
4206                         argv[0], argv[optind - 1]);
4207         return rc;
4208 }
4209
4210 static int lfs_tgts(int argc, char **argv)
4211 {
4212         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
4213         struct find_param param;
4214         int index = 0, rc=0;
4215
4216         if (argc > 2)
4217                 return CMD_HELP;
4218
4219         if (argc == 2 && !realpath(argv[1], path)) {
4220                 rc = -errno;
4221                 fprintf(stderr, "error: invalid path '%s': %s\n",
4222                         argv[1], strerror(-rc));
4223                 return rc;
4224         }
4225
4226         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
4227                 /* Check if we have a mount point */
4228                 if (mntdir[0] == '\0')
4229                         continue;
4230
4231                 memset(&param, 0, sizeof(param));
4232                 if (!strcmp(argv[0], "mdts"))
4233                         param.fp_get_lmv = 1;
4234
4235                 rc = llapi_ostlist(mntdir, &param);
4236                 if (rc) {
4237                         fprintf(stderr, "error: %s: failed on %s\n",
4238                                 argv[0], mntdir);
4239                 }
4240                 if (path[0] != '\0')
4241                         break;
4242                 memset(mntdir, 0, PATH_MAX);
4243         }
4244
4245         return rc;
4246 }
4247
4248 static int lfs_getstripe(int argc, char **argv)
4249 {
4250         struct find_param param = { 0 };
4251
4252         param.fp_max_depth = 1;
4253         return lfs_getstripe_internal(argc, argv, &param);
4254 }
4255
4256 /* functions */
4257 static int lfs_getdirstripe(int argc, char **argv)
4258 {
4259         struct find_param param = { 0 };
4260         struct option long_opts[] = {
4261         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
4262         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4263         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
4264         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
4265         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4266         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4267         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4268         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
4269         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4270         { .name = NULL } };
4271         int c, rc;
4272
4273         param.fp_get_lmv = 1;
4274
4275         while ((c = getopt_long(argc, argv,
4276                                 "cDHimO:rtTy", long_opts, NULL)) != -1)
4277         {
4278                 switch (c) {
4279                 case 'c':
4280                 case 'T':
4281                         param.fp_verbose |= VERBOSE_COUNT;
4282                         break;
4283                 case 'D':
4284                         param.fp_get_default_lmv = 1;
4285                         break;
4286                 case 'i':
4287                 case 'm':
4288                         param.fp_verbose |= VERBOSE_OFFSET;
4289                         break;
4290 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4291                 case 't':
4292                         fprintf(stderr, "warning: '-t' deprecated, "
4293                                 "use '--mdt-hash' or '-H' instead\n");
4294 #endif
4295                 case 'H':
4296                         param.fp_verbose |= VERBOSE_HASH_TYPE;
4297                         break;
4298                 case 'O':
4299                         if (param.fp_obd_uuid) {
4300                                 fprintf(stderr,
4301                                         "error: %s: only one obduuid allowed",
4302                                         argv[0]);
4303                                 return CMD_HELP;
4304                         }
4305                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
4306                         break;
4307                 case 'r':
4308                         param.fp_recursive = 1;
4309                         break;
4310                 case 'y':
4311                         param.fp_yaml = 1;
4312                         break;
4313                 default:
4314                         return CMD_HELP;
4315                 }
4316         }
4317
4318         if (optind >= argc)
4319                 return CMD_HELP;
4320
4321         if (param.fp_recursive)
4322                 param.fp_max_depth = -1;
4323
4324         if (!param.fp_verbose)
4325                 param.fp_verbose = VERBOSE_DEFAULT;
4326
4327         do {
4328                 rc = llapi_getstripe(argv[optind], &param);
4329         } while (++optind < argc && !rc);
4330
4331         if (rc)
4332                 fprintf(stderr, "error: %s failed for %s.\n",
4333                         argv[0], argv[optind - 1]);
4334         return rc;
4335 }
4336
4337 enum mntdf_flags {
4338         MNTDF_INODES    = 0x0001,
4339         MNTDF_COOKED    = 0x0002,
4340         MNTDF_LAZY      = 0x0004,
4341         MNTDF_VERBOSE   = 0x0008,
4342         MNTDF_SHOW      = 0x0010,
4343 };
4344
4345 #define COOK(value)                                             \
4346 ({                                                              \
4347         int radix = 0;                                          \
4348         while (value > 1024) {                                  \
4349                 value /= 1024;                                  \
4350                 radix++;                                        \
4351         }                                                       \
4352         radix;                                                  \
4353 })
4354 #define UUF     "%-20s"
4355 #define CSF     "%11s"
4356 #define CDF     "%11llu"
4357 #define HDF     "%8.1f%c"
4358 #define RSF     "%4s"
4359 #define RDF     "%3d%%"
4360
4361 static inline int obd_statfs_ratio(const struct obd_statfs *st)
4362 {
4363         double avail, used, ratio = 0;
4364
4365         avail = st->os_bavail;
4366         used  = st->os_blocks - st->os_bfree;
4367         if (avail + used > 0)
4368                 ratio = used / (used + avail) * 100 + 0.5;
4369
4370         return (int)ratio;
4371 }
4372
4373 static int showdf(char *mntdir, struct obd_statfs *stat,
4374                   char *uuid, enum mntdf_flags flags,
4375                   char *type, int index, int rc)
4376 {
4377         long long avail, used, total;
4378         int ratio = 0;
4379         char *suffix = "KMGTPEZY";
4380         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
4381         char tbuf[3 * sizeof(__u64)];
4382         char ubuf[3 * sizeof(__u64)];
4383         char abuf[3 * sizeof(__u64)];
4384         char rbuf[3 * sizeof(__u64)];
4385
4386         if (!uuid || !stat)
4387                 return -EINVAL;
4388
4389         switch (rc) {
4390         case 0:
4391                 if (flags & MNTDF_INODES) {
4392                         avail = stat->os_ffree;
4393                         used = stat->os_files - stat->os_ffree;
4394                         total = stat->os_files;
4395                 } else {
4396                         int shift = flags & MNTDF_COOKED ? 0 : 10;
4397
4398                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
4399                         used  = ((stat->os_blocks - stat->os_bfree) *
4400                                  stat->os_bsize) >> shift;
4401                         total = (stat->os_blocks * stat->os_bsize) >> shift;
4402                 }
4403
4404                 ratio = obd_statfs_ratio(stat);
4405
4406                 if (flags & MNTDF_COOKED) {
4407                         int i;
4408                         double cook_val;
4409
4410                         cook_val = (double)total;
4411                         i = COOK(cook_val);
4412                         if (i > 0)
4413                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
4414                                          suffix[i - 1]);
4415                         else
4416                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
4417
4418                         cook_val = (double)used;
4419                         i = COOK(cook_val);
4420                         if (i > 0)
4421                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
4422                                          suffix[i - 1]);
4423                         else
4424                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
4425
4426                         cook_val = (double)avail;
4427                         i = COOK(cook_val);
4428                         if (i > 0)
4429                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
4430                                          suffix[i - 1]);
4431                         else
4432                                 snprintf(abuf, sizeof(abuf), CDF, avail);
4433                 } else {
4434                         snprintf(tbuf, sizeof(tbuf), CDF, total);
4435                         snprintf(ubuf, sizeof(tbuf), CDF, used);
4436                         snprintf(abuf, sizeof(tbuf), CDF, avail);
4437                 }
4438
4439                 sprintf(rbuf, RDF, ratio);
4440                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
4441                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
4442                 if (type)
4443                         printf("[%s:%d]", type, index);
4444
4445                 if (stat->os_state) {
4446                         /*
4447                          * Each character represents the matching
4448                          * OS_STATE_* bit.
4449                          */
4450                         const char state_names[] = "DRSI";
4451                         __u32      state;
4452                         __u32      i;
4453
4454                         printf(" ");
4455                         for (i = 0, state = stat->os_state;
4456                              state && i < sizeof(state_names); i++) {
4457                                 if (!(state & (1 << i)))
4458                                         continue;
4459                                 printf("%c", state_names[i]);
4460                                 state ^= 1 << i;
4461                         }
4462                 }
4463
4464                 printf("\n");
4465                 break;
4466         case -ENODATA:
4467                 printf(UUF": inactive device\n", uuid);
4468                 break;
4469         default:
4470                 printf(UUF": %s\n", uuid, strerror(-rc));
4471                 break;
4472         }
4473
4474         return 0;
4475 }
4476
4477 struct ll_stat_type {
4478         int   st_op;
4479         char *st_name;
4480 };
4481
4482 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
4483
4484 struct ll_statfs_data {
4485         int                     sd_index;
4486         struct obd_statfs       sd_st;
4487 };
4488
4489 struct ll_statfs_buf {
4490         int                     sb_count;
4491         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
4492 };
4493
4494 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
4495                  int ops, struct ll_statfs_buf *lsb)
4496 {
4497         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
4498         struct obd_uuid uuid_buf;
4499         char *poolname = NULL;
4500         struct ll_stat_type types[] = {
4501                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
4502                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
4503                 { .st_name = NULL } };
4504         struct ll_stat_type *tp;
4505         __u64 ost_ffree = 0;
4506         __u32 index;
4507         __u32 type;
4508         int fd;
4509         int rc = 0;
4510         int rc2;
4511
4512         if (pool) {
4513                 poolname = strchr(pool, '.');
4514                 if (poolname != NULL) {
4515                         if (strncmp(fsname, pool, strlen(fsname))) {
4516                                 fprintf(stderr, "filesystem name incorrect\n");
4517                                 return -ENODEV;
4518                         }
4519                         poolname++;
4520                 } else
4521                         poolname = pool;
4522         }
4523
4524         fd = open(mntdir, O_RDONLY);
4525         if (fd < 0) {
4526                 rc = -errno;
4527                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
4528                         strerror(errno));
4529                 return rc;
4530         }
4531
4532         if (flags & MNTDF_SHOW) {
4533                 if (flags & MNTDF_INODES)
4534                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4535                                "UUID", "Inodes", "IUsed", "IFree",
4536                                "IUse%", "Mounted on");
4537                 else
4538                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4539                                "UUID",
4540                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
4541                                "Used", "Available", "Use%", "Mounted on");
4542         }
4543
4544         for (tp = types; tp->st_name != NULL; tp++) {
4545                 if (!(tp->st_op & ops))
4546                         continue;
4547
4548                 for (index = 0; ; index++) {
4549                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
4550                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
4551                         type = flags & MNTDF_LAZY ?
4552                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
4553                         rc2 = llapi_obd_fstatfs(fd, type, index,
4554                                                &stat_buf, &uuid_buf);
4555                         if (rc2 == -ENODEV)
4556                                 break;
4557                         if (rc2 == -EAGAIN)
4558                                 continue;
4559                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
4560                                 if (!(flags & MNTDF_VERBOSE))
4561                                         continue;
4562                         } else if (rc2 < 0 && rc == 0) {
4563                                 rc = rc2;
4564                         }
4565
4566                         if (poolname && tp->st_op == LL_STATFS_LOV &&
4567                             llapi_search_ost(fsname, poolname,
4568                                              obd_uuid2str(&uuid_buf)) != 1)
4569                                 continue;
4570
4571                         /* the llapi_obd_statfs() call may have returned with
4572                          * an error, but if it filled in uuid_buf we will at
4573                          * lease use that to print out a message for that OBD.
4574                          * If we didn't get anything in the uuid_buf, then fill
4575                          * it in so that we can print an error message. */
4576                         if (uuid_buf.uuid[0] == '\0')
4577                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
4578                                          "%s%04x", tp->st_name, index);
4579                         if (!rc && lsb) {
4580                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
4581                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
4582                                 lsb->sb_count++;
4583                         }
4584                         if (flags & MNTDF_SHOW)
4585                                 showdf(mntdir, &stat_buf,
4586                                        obd_uuid2str(&uuid_buf), flags,
4587                                        tp->st_name, index, rc2);
4588
4589                         if (rc2 == 0) {
4590                                 if (tp->st_op == LL_STATFS_LMV) {
4591                                         sum.os_ffree += stat_buf.os_ffree;
4592                                         sum.os_files += stat_buf.os_files;
4593                                 } else /* if (tp->st_op == LL_STATFS_LOV) */ {
4594                                         sum.os_blocks += stat_buf.os_blocks *
4595                                                 stat_buf.os_bsize;
4596                                         sum.os_bfree  += stat_buf.os_bfree *
4597                                                 stat_buf.os_bsize;
4598                                         sum.os_bavail += stat_buf.os_bavail *
4599                                                 stat_buf.os_bsize;
4600                                         ost_ffree += stat_buf.os_ffree;
4601                                 }
4602                         }
4603                 }
4604         }
4605
4606         close(fd);
4607
4608         /* If we don't have as many objects free on the OST as inodes
4609          * on the MDS, we reduce the total number of inodes to
4610          * compensate, so that the "inodes in use" number is correct.
4611          * Matches ll_statfs_internal() so the results are consistent. */
4612         if (ost_ffree < sum.os_ffree) {
4613                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
4614                 sum.os_ffree = ost_ffree;
4615         }
4616         if (flags & MNTDF_SHOW) {
4617                 printf("\n");
4618                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
4619                 printf("\n");
4620         }
4621
4622         return rc;
4623 }
4624
4625 static int ll_statfs_data_comp(const void *sd1, const void *sd2)
4626 {
4627         const struct obd_statfs *st1 = &((const struct ll_statfs_data *)sd1)->
4628                                                 sd_st;
4629         const struct obd_statfs *st2 = &((const struct ll_statfs_data *)sd2)->
4630                                                 sd_st;
4631         int r1 = obd_statfs_ratio(st1);
4632         int r2 = obd_statfs_ratio(st2);
4633         int64_t result = r1 - r2;
4634
4635         /* if both space usage are above 90, compare free inodes */
4636         if (r1 > 90 && r2 > 90)
4637                 result = st2->os_ffree - st1->os_ffree;
4638
4639         if (result < 0)
4640                 return -1;
4641         else if (result == 0)
4642                 return 0;
4643         else
4644                 return 1;
4645 }
4646
4647 /* functions */
4648 static int lfs_setdirstripe(int argc, char **argv)
4649 {
4650         char                    *dname;
4651         int                     result;
4652         struct lfs_setstripe_args        lsa = { 0 };
4653         struct llapi_stripe_param       *param = NULL;
4654         __u32                   mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
4655         char                    *end;
4656         int                     c;
4657         char                    *mode_opt = NULL;
4658         bool                    default_stripe = false;
4659         mode_t                  mode = S_IRWXU | S_IRWXG | S_IRWXO;
4660         mode_t                  previous_mode = 0;
4661         bool                    delete = false;
4662         struct ll_statfs_buf    *lsb = NULL;
4663         char                    mntdir[PATH_MAX] = "";
4664         bool                    auto_distributed = false;
4665
4666         struct option long_opts[] = {
4667         { .val = 'c',   .name = "count",        .has_arg = required_argument },
4668         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
4669         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
4670         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4671         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
4672         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4673         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
4674 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4675         { .val = 'i',   .name = "index",        .has_arg = required_argument },
4676 #endif
4677         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
4678 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4679         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
4680 #endif
4681         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4682 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
4683         { .name = NULL } };
4684
4685         setstripe_args_init(&lsa);
4686
4687         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:", long_opts,
4688                                 NULL)) >= 0) {
4689                 switch (c) {
4690                 case 0:
4691                         /* Long options. */
4692                         break;
4693                 case 'c':
4694                 case 'T':
4695                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
4696                         if (*end != '\0') {
4697                                 fprintf(stderr,
4698                                         "%s %s: invalid stripe count '%s'\n",
4699                                         progname, argv[0], optarg);
4700                                 return CMD_HELP;
4701                         }
4702                         break;
4703                 case 'd':
4704                         delete = true;
4705                         default_stripe = true;
4706                         break;
4707                 case 'D':
4708                         default_stripe = true;
4709                         break;
4710 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4711                 case 't':
4712                         fprintf(stderr, "warning: '--hash-type' and '-t' "
4713                               "deprecated, use '--mdt-hash' or '-H' instead\n");
4714 #endif
4715                 case 'H':
4716                         lsa.lsa_pattern = check_hashtype(optarg);
4717                         if (lsa.lsa_pattern == 0) {
4718                                 fprintf(stderr,
4719                                         "%s %s: bad stripe hash type '%s'\n",
4720                                         progname, argv[0], optarg);
4721                                 return CMD_HELP;
4722                         }
4723                         break;
4724                 case 'i':
4725 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4726                         if (strcmp(argv[optind - 1], "--index") == 0)
4727                                 fprintf(stderr,
4728                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
4729                                         progname, argv[0]);
4730 #endif
4731                         lsa.lsa_nr_tgts = parse_targets(mdts,
4732                                                 sizeof(mdts) / sizeof(__u32),
4733                                                 lsa.lsa_nr_tgts, optarg);
4734                         if (lsa.lsa_nr_tgts < 0) {
4735                                 fprintf(stderr,
4736                                         "%s %s: invalid MDT target(s) '%s'\n",
4737                                         progname, argv[0], optarg);
4738                                 return CMD_HELP;
4739                         }
4740
4741                         lsa.lsa_tgts = mdts;
4742                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4743                                 lsa.lsa_stripe_off = mdts[0];
4744                         break;
4745 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 16, 53, 0)
4746                 case 'm':
4747                         fprintf(stderr, "warning: '-m' is deprecated, "
4748                                 "use '--mode' or '-o' instead\n");
4749 #endif
4750                 case 'o':
4751                         mode_opt = optarg;
4752                         break;
4753                 default:
4754                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
4755                                 progname, argv[0], argv[optind - 1]);
4756                         return CMD_HELP;
4757                 }
4758         }
4759
4760         if (optind == argc) {
4761                 fprintf(stderr, "%s %s: DIR must be specified\n",
4762                         progname, argv[0]);
4763                 return CMD_HELP;
4764         }
4765
4766         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
4767             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT) {
4768                 fprintf(stderr,
4769                         "%s %s: stripe offset and count must be specified\n",
4770                         progname, argv[0]);
4771                 return CMD_HELP;
4772         }
4773
4774         if (delete &&
4775             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
4776              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
4777                 fprintf(stderr,
4778                         "%s %s: cannot specify -d with -c or -i options\n",
4779                         progname, argv[0]);
4780                 return CMD_HELP;
4781         }
4782
4783         if (mode_opt != NULL) {
4784                 mode = strtoul(mode_opt, &end, 8);
4785                 if (*end != '\0') {
4786                         fprintf(stderr,
4787                                 "%s %s: bad MODE '%s'\n",
4788                                 progname, argv[0], mode_opt);
4789                         return CMD_HELP;
4790                 }
4791                 previous_mode = umask(0);
4792         }
4793
4794         /*
4795          * initialize stripe parameters, in case param is converted to specific,
4796          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
4797          */
4798         param = calloc(1, offsetof(typeof(*param),
4799                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
4800                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
4801         if (param == NULL) {
4802                 fprintf(stderr,
4803                         "%s %s: cannot allocate memory for parameters: %s\n",
4804                         progname, argv[0], strerror(ENOMEM));
4805                 return CMD_HELP;
4806         }
4807
4808         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
4809                 param->lsp_stripe_count = lsa.lsa_stripe_count;
4810         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4811                 param->lsp_stripe_offset = -1;
4812         else
4813                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
4814         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
4815                 param->lsp_stripe_pattern = lsa.lsa_pattern;
4816         else
4817                 param->lsp_stripe_pattern = LMV_HASH_TYPE_FNV_1A_64;
4818         param->lsp_pool = lsa.lsa_pool_name;
4819         param->lsp_is_specific = false;
4820         if (lsa.lsa_nr_tgts > 1) {
4821                 if (lsa.lsa_stripe_count > 0 &&
4822                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
4823                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
4824                         fprintf(stderr, "error: %s: stripe count %lld doesn't "
4825                                 "match the number of MDTs: %d\n",
4826                                 argv[0], lsa.lsa_stripe_count, lsa.lsa_nr_tgts);
4827                         free(param);
4828                         return CMD_HELP;
4829                 }
4830
4831                 param->lsp_is_specific = true;
4832                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
4833                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
4834         }
4835
4836         dname = argv[optind];
4837         do {
4838                 if (default_stripe) {
4839                         result = llapi_dir_set_default_lmv(dname, param);
4840                 } else {
4841                         /* if current \a dname isn't under the same \a mntdir
4842                          * as the last one, and the last one was
4843                          * auto-distributed, restore \a param.
4844                          */
4845                         if (mntdir[0] != '\0' &&
4846                             strncmp(dname, mntdir, strlen(mntdir)) &&
4847                             auto_distributed) {
4848                                 param->lsp_is_specific = false;
4849                                 param->lsp_stripe_offset = -1;
4850                                 auto_distributed = false;
4851                         }
4852
4853                         if (!param->lsp_is_specific &&
4854                             param->lsp_stripe_offset == -1) {
4855                                 char path[PATH_MAX] = "";
4856
4857                                 if (!lsb) {
4858                                         lsb = malloc(sizeof(*lsb));
4859                                         if (!lsb) {
4860                                                 result = -ENOMEM;
4861                                                 break;
4862                                         }
4863                                 }
4864                                 lsb->sb_count = 0;
4865
4866                                 /* use mntdir for dirname() temporarily */
4867                                 strncpy(mntdir, dname, sizeof(mntdir));
4868                                 if (!realpath(dirname(mntdir), path)) {
4869                                         result = -errno;
4870                                         fprintf(stderr,
4871                                                 "error: invalid path '%s': %s\n",
4872                                                 argv[optind], strerror(errno));
4873                                         break;
4874                                 }
4875                                 mntdir[0] = '\0';
4876
4877                                 result = llapi_search_mounts(path, 0, mntdir,
4878                                                              NULL);
4879                                 if (result < 0 || mntdir[0] == '\0') {
4880                                         fprintf(stderr,
4881                                                 "No suitable Lustre mount found\n");
4882                                         break;
4883                                 }
4884
4885                                 result = mntdf(mntdir, NULL, NULL, 0,
4886                                                LL_STATFS_LMV, lsb);
4887                                 if (result < 0)
4888                                         break;
4889
4890                                 if (param->lsp_stripe_count > lsb->sb_count) {
4891                                         fprintf(stderr,
4892                                                 "error: stripe count %d is too big\n",
4893                                                 param->lsp_stripe_count);
4894                                         result = -ERANGE;
4895                                         break;
4896                                 }
4897
4898                                 qsort(lsb->sb_buf, lsb->sb_count,
4899                                       sizeof(struct ll_statfs_data),
4900                                       ll_statfs_data_comp);
4901
4902                                 auto_distributed = true;
4903                         }
4904
4905                         if (auto_distributed) {
4906                                 int r;
4907                                 int nr = MAX(param->lsp_stripe_count,
4908                                              lsb->sb_count / 2);
4909
4910                                 /* don't use server whose usage is above 90% */
4911                                 while (nr != param->lsp_stripe_count &&
4912                                        obd_statfs_ratio(&lsb->sb_buf[nr].sd_st)
4913                                        > 90)
4914                                         nr = MAX(param->lsp_stripe_count,
4915                                                  nr / 2);
4916
4917                                 /* get \a r between [0, nr) */
4918                                 r = rand() % nr;
4919
4920                                 param->lsp_stripe_offset =
4921                                         lsb->sb_buf[r].sd_index;
4922                                 if (param->lsp_stripe_count > 1) {
4923                                         int i = 0;
4924
4925                                         param->lsp_is_specific = true;
4926                                         for (; i < param->lsp_stripe_count; i++)
4927                                                 param->lsp_tgts[(i + r) % nr] =
4928                                                         lsb->sb_buf[i].sd_index;
4929                                 }
4930                         }
4931
4932                         result = llapi_dir_create(dname, mode, param);
4933                 }
4934
4935                 if (result) {
4936                         fprintf(stderr,
4937                                 "%s setdirstripe: cannot create stripe dir '%s': %s\n",
4938                                 progname, dname, strerror(-result));
4939                         break;
4940                 }
4941                 dname = argv[++optind];
4942         } while (dname != NULL);
4943
4944         if (mode_opt != NULL)
4945                 umask(previous_mode);
4946
4947         free(lsb);
4948         free(param);
4949         return result;
4950 }
4951
4952 /* functions */
4953 static int lfs_rmentry(int argc, char **argv)
4954 {
4955         char *dname;
4956         int   index;
4957         int   result = 0;
4958
4959         if (argc <= 1) {
4960                 fprintf(stderr, "error: %s: missing dirname\n",
4961                         argv[0]);
4962                 return CMD_HELP;
4963         }
4964
4965         index = 1;
4966         dname = argv[index];
4967         while (dname != NULL) {
4968                 result = llapi_direntry_remove(dname);
4969                 if (result) {
4970                         fprintf(stderr, "error: %s: remove dir entry '%s' "
4971                                 "failed\n", argv[0], dname);
4972                         break;
4973                 }
4974                 dname = argv[++index];
4975         }
4976         return result;
4977 }
4978
4979 static int lfs_mv(int argc, char **argv)
4980 {
4981         struct  find_param param = {
4982                 .fp_max_depth = -1,
4983                 .fp_mdt_index = -1,
4984         };
4985         char   *end;
4986         int     c;
4987         int     rc = 0;
4988         struct option long_opts[] = {
4989         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4990         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
4991         { .name = NULL } };
4992
4993         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
4994                 switch (c) {
4995 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4996                 case 'M':
4997                         fprintf(stderr, "warning: '-M' deprecated"
4998                                 ", use '--mdt-index' or '-m' instead\n");
4999 #endif
5000                 case 'm':
5001                         param.fp_mdt_index = strtoul(optarg, &end, 0);
5002                         if (*end != '\0') {
5003                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
5004                                         progname, optarg);
5005                                 return CMD_HELP;
5006                         }
5007                         break;
5008                 case 'v':
5009                         param.fp_verbose = VERBOSE_DETAIL;
5010                         break;
5011                 default:
5012                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
5013                                 progname, argv[optind - 1]);
5014                         return CMD_HELP;
5015                 }
5016         }
5017
5018         if (param.fp_mdt_index == -1) {
5019                 fprintf(stderr, "%s mv: MDT index must be specified\n",
5020                         progname);
5021                 return CMD_HELP;
5022         }
5023
5024         if (optind >= argc) {
5025                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
5026                 return CMD_HELP;
5027         }
5028
5029         param.fp_migrate = 1;
5030         rc = llapi_migrate_mdt(argv[optind], &param);
5031         if (rc != 0)
5032                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
5033                         progname, argv[optind], param.fp_mdt_index,
5034                         strerror(-rc));
5035         return rc;
5036 }
5037
5038 static int lfs_osts(int argc, char **argv)
5039 {
5040         return lfs_tgts(argc, argv);
5041 }
5042
5043 static int lfs_mdts(int argc, char **argv)
5044 {
5045         return lfs_tgts(argc, argv);
5046 }
5047
5048 static int lfs_df(int argc, char **argv)
5049 {
5050         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5051         enum mntdf_flags flags = MNTDF_SHOW;
5052         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
5053         int c, rc = 0, index = 0;
5054         char fsname[PATH_MAX] = "", *pool_name = NULL;
5055         struct option long_opts[] = {
5056         { .val = 'h',   .name = "human-readable",
5057                                                 .has_arg = no_argument },
5058         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
5059         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
5060         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
5061         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5062         { .name = NULL} };
5063
5064         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
5065                 switch (c) {
5066                 case 'h':
5067                         flags |= MNTDF_COOKED;
5068                         break;
5069                 case 'i':
5070                         flags |= MNTDF_INODES;
5071                         break;
5072                 case 'l':
5073                         flags |= MNTDF_LAZY;
5074                         break;
5075                 case 'p':
5076                         pool_name = optarg;
5077                         break;
5078                 case 'v':
5079                         flags |= MNTDF_VERBOSE;
5080                         break;
5081                 default:
5082                         return CMD_HELP;
5083                 }
5084         }
5085         if (optind < argc && !realpath(argv[optind], path)) {
5086                 rc = -errno;
5087                 fprintf(stderr, "error: invalid path '%s': %s\n",
5088                         argv[optind], strerror(-rc));
5089                 return rc;
5090         }
5091
5092         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5093                 /* Check if we have a mount point */
5094                 if (mntdir[0] == '\0')
5095                         continue;
5096
5097                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
5098                 if (rc || path[0] != '\0')
5099                         break;
5100                 fsname[0] = '\0'; /* avoid matching in next loop */
5101                 mntdir[0] = '\0'; /* avoid matching in next loop */
5102         }
5103
5104         return rc;
5105 }
5106
5107 static int lfs_getname(int argc, char **argv)
5108 {
5109         char mntdir[PATH_MAX] = "", path[PATH_MAX] = "", fsname[PATH_MAX] = "";
5110         int rc = 0, index = 0, c;
5111         char buf[sizeof(struct obd_uuid)];
5112
5113         while ((c = getopt(argc, argv, "h")) != -1)
5114                 return CMD_HELP;
5115
5116         if (optind == argc) { /* no paths specified, get all paths. */
5117                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5118                         rc = llapi_getname(mntdir, buf, sizeof(buf));
5119                         if (rc < 0) {
5120                                 fprintf(stderr,
5121                                         "cannot get name for `%s': %s\n",
5122                                         mntdir, strerror(-rc));
5123                                 break;
5124                         }
5125
5126                         printf("%s %s\n", buf, mntdir);
5127
5128                         path[0] = fsname[0] = mntdir[0] = 0;
5129                 }
5130         } else { /* paths specified, only attempt to search these. */
5131                 for (; optind < argc; optind++) {
5132                         rc = llapi_getname(argv[optind], buf, sizeof(buf));
5133                         if (rc < 0) {
5134                                 fprintf(stderr,
5135                                         "cannot get name for `%s': %s\n",
5136                                         argv[optind], strerror(-rc));
5137                                 break;
5138                         }
5139
5140                         printf("%s %s\n", buf, argv[optind]);
5141                 }
5142         }
5143         return rc;
5144 }
5145
5146 static int lfs_check(int argc, char **argv)
5147 {
5148         int rc;
5149         char mntdir[PATH_MAX] = {'\0'};
5150         int num_types = 1;
5151         char *obd_types[2];
5152         char obd_type1[4];
5153         char obd_type2[4];
5154
5155         if (argc != 2) {
5156                 fprintf(stderr, "%s check: server type must be specified\n",
5157                         progname);
5158                 return CMD_HELP;
5159         }
5160
5161         obd_types[0] = obd_type1;
5162         obd_types[1] = obd_type2;
5163
5164         if (strcmp(argv[1], "osts") == 0) {
5165                 strcpy(obd_types[0], "osc");
5166         } else if (strcmp(argv[1], "mds") == 0) {
5167                 strcpy(obd_types[0], "mdc");
5168         } else if (strcmp(argv[1], "servers") == 0) {
5169                 num_types = 2;
5170                 strcpy(obd_types[0], "osc");
5171                 strcpy(obd_types[1], "mdc");
5172         } else {
5173                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
5174                         progname, argv[1]);
5175                 return CMD_HELP;
5176         }
5177
5178         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
5179         if (rc < 0 || mntdir[0] == '\0') {
5180                 fprintf(stderr,
5181                         "%s check: cannot find mounted Lustre filesystem: %s\n",
5182                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
5183                 return rc;
5184         }
5185
5186         rc = llapi_target_check(num_types, obd_types, mntdir);
5187         if (rc)
5188                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
5189                         progname, argv[1], strerror(-rc));
5190
5191         return rc;
5192
5193 }
5194
5195 #ifdef HAVE_SYS_QUOTA_H
5196 #define ARG2INT(nr, str, msg)                                           \
5197 do {                                                                    \
5198         char *endp;                                                     \
5199         nr = strtol(str, &endp, 0);                                     \
5200         if (*endp != '\0') {                                            \
5201                 fprintf(stderr, "%s: bad %s '%s'\n",                    \
5202                         progname, msg, str);                            \
5203                 return CMD_HELP;                                        \
5204         }                                                               \
5205 } while (0)
5206
5207 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
5208
5209 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
5210  * returns the value or ULONG_MAX on integer overflow or incorrect format
5211  * Notes:
5212  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
5213  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
5214  *        3. empty integer value is interpreted as 0
5215  */
5216 static unsigned long str2sec(const char* timestr)
5217 {
5218         const char spec[] = "smhdw";
5219         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5220         unsigned long val = 0;
5221         char *tail;
5222
5223         if (strpbrk(timestr, spec) == NULL) {
5224                 /* no specifiers inside the time string,
5225                    should treat it as an integer value */
5226                 val = strtoul(timestr, &tail, 10);
5227                 return *tail ? ULONG_MAX : val;
5228         }
5229
5230         /* format string is XXwXXdXXhXXmXXs */
5231         while (*timestr) {
5232                 unsigned long v;
5233                 int ind;
5234                 char* ptr;
5235
5236                 v = strtoul(timestr, &tail, 10);
5237                 if (v == ULONG_MAX || *tail == '\0')
5238                         /* value too large (ULONG_MAX or more)
5239                            or missing specifier */
5240                         goto error;
5241
5242                 ptr = strchr(spec, *tail);
5243                 if (ptr == NULL)
5244                         /* unknown specifier */
5245                         goto error;
5246
5247                 ind = ptr - spec;
5248
5249                 /* check if product will overflow the type */
5250                 if (!(v < ULONG_MAX / mult[ind]))
5251                         goto error;
5252
5253                 ADD_OVERFLOW(val, mult[ind] * v);
5254                 if (val == ULONG_MAX)
5255                         goto error;
5256
5257                 timestr = tail + 1;
5258         }
5259
5260         return val;
5261
5262 error:
5263         return ULONG_MAX;
5264 }
5265
5266 #define ARG2ULL(nr, str, def_units)                                     \
5267 do {                                                                    \
5268         unsigned long long limit, units = def_units;                    \
5269         int rc;                                                         \
5270                                                                         \
5271         rc = llapi_parse_size(str, &limit, &units, 1);                  \
5272         if (rc < 0) {                                                   \
5273                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
5274                         progname, str);                                 \
5275                 return CMD_HELP;                                        \
5276         }                                                               \
5277         nr = limit;                                                     \
5278 } while (0)
5279
5280 static inline int has_times_option(int argc, char **argv)
5281 {
5282         int i;
5283
5284         for (i = 1; i < argc; i++)
5285                 if (!strcmp(argv[i], "-t"))
5286                         return 1;
5287
5288         return 0;
5289 }
5290
5291 int lfs_setquota_times(int argc, char **argv)
5292 {
5293         int c, rc;
5294         struct if_quotactl qctl;
5295         char *mnt, *obd_type = (char *)qctl.obd_type;
5296         struct obd_dqblk *dqb = &qctl.qc_dqblk;
5297         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
5298         struct option long_opts[] = {
5299         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
5300         { .val = 'g',   .name = "group",        .has_arg = no_argument },
5301         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
5302         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
5303         { .val = 't',   .name = "times",        .has_arg = no_argument },
5304         { .val = 'u',   .name = "user",         .has_arg = no_argument },
5305         { .name = NULL } };
5306         int qtype;
5307
5308         memset(&qctl, 0, sizeof(qctl));
5309         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
5310         qctl.qc_type = ALLQUOTA;
5311
5312         while ((c = getopt_long(argc, argv, "b:gi:ptu",
5313                                 long_opts, NULL)) != -1) {
5314                 switch (c) {
5315                 case 'u':
5316                         qtype = USRQUOTA;
5317                         goto quota_type;
5318                 case 'g':
5319                         qtype = GRPQUOTA;
5320                         goto quota_type;
5321                 case 'p':
5322                         qtype = PRJQUOTA;
5323 quota_type:
5324                         if (qctl.qc_type != ALLQUOTA) {
5325                                 fprintf(stderr, "error: -u/g/p can't be used "
5326                                                 "more than once\n");
5327                                 return CMD_HELP;
5328                         }
5329                         qctl.qc_type = qtype;
5330                         break;
5331                 case 'b':
5332                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
5333                                 fprintf(stderr, "error: bad block-grace: %s\n",
5334                                         optarg);
5335                                 return CMD_HELP;
5336                         }
5337                         dqb->dqb_valid |= QIF_BTIME;
5338                         break;
5339                 case 'i':
5340                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
5341                                 fprintf(stderr, "error: bad inode-grace: %s\n",
5342                                         optarg);
5343                                 return CMD_HELP;
5344                         }
5345                         dqb->dqb_valid |= QIF_ITIME;
5346                         break;
5347                 case 't': /* Yes, of course! */
5348                         break;
5349                 default: /* getopt prints error message for us when opterr != 0 */
5350                         return CMD_HELP;
5351                 }
5352         }
5353
5354         if (qctl.qc_type == ALLQUOTA) {
5355                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
5356                 return CMD_HELP;
5357         }
5358
5359         if (optind != argc - 1) {
5360                 fprintf(stderr, "error: unexpected parameters encountered\n");
5361                 return CMD_HELP;
5362         }
5363
5364         mnt = argv[optind];
5365         rc = llapi_quotactl(mnt, &qctl);
5366         if (rc) {
5367                 if (*obd_type)
5368                         fprintf(stderr, "%s %s ", obd_type,
5369                                 obd_uuid2str(&qctl.obd_uuid));
5370                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
5371                 return rc;
5372         }
5373
5374         return 0;
5375 }
5376
5377 #define BSLIMIT (1 << 0)
5378 #define BHLIMIT (1 << 1)
5379 #define ISLIMIT (1 << 2)
5380 #define IHLIMIT (1 << 3)
5381
5382 int lfs_setquota(int argc, char **argv)
5383 {
5384         int c, rc;
5385         struct if_quotactl qctl;
5386         char *mnt, *obd_type = (char *)qctl.obd_type;
5387         struct obd_dqblk *dqb = &qctl.qc_dqblk;
5388         struct option long_opts[] = {
5389         { .val = 'b',   .name = "block-softlimit",
5390                                                 .has_arg = required_argument },
5391         { .val = 'B',   .name = "block-hardlimit",
5392                                                 .has_arg = required_argument },
5393         { .val = 'g',   .name = "group",        .has_arg = required_argument },
5394         { .val = 'i',   .name = "inode-softlimit",
5395                                                 .has_arg = required_argument },
5396         { .val = 'I',   .name = "inode-hardlimit",
5397                                                 .has_arg = required_argument },
5398         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
5399         { .val = 'u',   .name = "user",         .has_arg = required_argument },
5400         { .name = NULL } };
5401         unsigned limit_mask = 0;
5402         char *endptr;
5403         int qtype;
5404
5405         if (has_times_option(argc, argv))
5406                 return lfs_setquota_times(argc, argv);
5407
5408         memset(&qctl, 0, sizeof(qctl));
5409         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
5410         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
5411                                   * so it can be used as a marker that qc_type
5412                                   * isn't reinitialized from command line */
5413
5414         while ((c = getopt_long(argc, argv, "b:B:g:i:I:p:u:",
5415                 long_opts, NULL)) != -1) {
5416                 switch (c) {
5417                 case 'u':
5418                         qtype = USRQUOTA;
5419                         rc = name2uid(&qctl.qc_id, optarg);
5420                         goto quota_type;
5421                 case 'g':
5422                         qtype = GRPQUOTA;
5423                         rc = name2gid(&qctl.qc_id, optarg);
5424                         goto quota_type;
5425                 case 'p':
5426                         qtype = PRJQUOTA;
5427                         rc = name2projid(&qctl.qc_id, optarg);
5428 quota_type:
5429                         if (qctl.qc_type != ALLQUOTA) {
5430                                 fprintf(stderr,
5431                                         "%s setquota: only one of -u, -g or -p may be specified\n",
5432                                         progname);
5433                                 return CMD_HELP;
5434                         }
5435                         qctl.qc_type = qtype;
5436                         if (rc) {
5437                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
5438                                 if (*endptr != '\0') {
5439                                         fprintf(stderr,
5440                                                 "%s setquota: invalid id '%s'\n",
5441                                                 progname, optarg);
5442                                         return -1;
5443                                 }
5444                         }
5445                         break;
5446                 case 'b':
5447                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
5448                         dqb->dqb_bsoftlimit >>= 10;
5449                         limit_mask |= BSLIMIT;
5450                         if (dqb->dqb_bsoftlimit &&
5451                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
5452                                 fprintf(stderr,
5453                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\n"
5454                                         "See '%s help setquota' or Lustre manual for details\n",
5455                                         progname, dqb->dqb_bsoftlimit,
5456                                         progname);
5457                         break;
5458                 case 'B':
5459                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
5460                         dqb->dqb_bhardlimit >>= 10;
5461                         limit_mask |= BHLIMIT;
5462                         if (dqb->dqb_bhardlimit &&
5463                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
5464                                 fprintf(stderr,
5465                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
5466                                         "See '%s help setquota' or Lustre manual for details\n",
5467                                         progname, dqb->dqb_bhardlimit,
5468                                         progname);
5469                         break;
5470                 case 'i':
5471                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
5472                         limit_mask |= ISLIMIT;
5473                         if (dqb->dqb_isoftlimit &&
5474                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
5475                                 fprintf(stderr,
5476                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\n"
5477                                         "See '%s help setquota' or Lustre manual for details\n",
5478                                         progname, dqb->dqb_isoftlimit,
5479                                         progname);
5480                         break;
5481                 case 'I':
5482                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
5483                         limit_mask |= IHLIMIT;
5484                         if (dqb->dqb_ihardlimit &&
5485                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
5486                                 fprintf(stderr,
5487                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\n"
5488                                         "See '%s help setquota' or Lustre manual for details\n",
5489                                         progname, dqb->dqb_ihardlimit,
5490                                         progname);
5491                         break;
5492                 default:
5493                         fprintf(stderr,
5494                                 "%s setquota: unrecognized option '%s'\n",
5495                                 progname, argv[optind - 1]);
5496                         return CMD_HELP;
5497                 }
5498         }
5499
5500         if (qctl.qc_type == ALLQUOTA) {
5501                 fprintf(stderr,
5502                         "%s setquota: either -u or -g must be specified\n",
5503                         progname);
5504                 return CMD_HELP;
5505         }
5506
5507         if (limit_mask == 0) {
5508                 fprintf(stderr,
5509                         "%s setquota: at least one limit must be specified\n",
5510                         progname);
5511                 return CMD_HELP;
5512         }
5513
5514         if (optind != argc - 1) {
5515                 fprintf(stderr,
5516                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
5517                         progname, argv[optind]);
5518                 return CMD_HELP;
5519         }
5520
5521         mnt = argv[optind];
5522
5523         if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
5524             (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
5525                 /* sigh, we can't just set blimits/ilimits */
5526                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
5527                                                .qc_type = qctl.qc_type,
5528                                                .qc_id   = qctl.qc_id};
5529
5530                 rc = llapi_quotactl(mnt, &tmp_qctl);
5531                 if (rc < 0)
5532                         return rc;
5533
5534                 if (!(limit_mask & BHLIMIT))
5535                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
5536                 if (!(limit_mask & BSLIMIT))
5537                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
5538                 if (!(limit_mask & IHLIMIT))
5539                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
5540                 if (!(limit_mask & ISLIMIT))
5541                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
5542
5543                 /* Keep grace times if we have got no softlimit arguments */
5544                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
5545                         dqb->dqb_valid |= QIF_BTIME;
5546                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
5547                 }
5548
5549                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
5550                         dqb->dqb_valid |= QIF_ITIME;
5551                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
5552                 }
5553         }
5554
5555         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
5556         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
5557
5558         rc = llapi_quotactl(mnt, &qctl);
5559         if (rc) {
5560                 if (*obd_type)
5561                         fprintf(stderr,
5562                                 "%s setquota: cannot quotactl '%s' '%s': %s",
5563                                 progname, obd_type,
5564                                 obd_uuid2str(&qctl.obd_uuid), strerror(-rc));
5565                 return rc;
5566         }
5567
5568         return 0;
5569 }
5570
5571 /* Converts seconds value into format string
5572  * result is returned in buf
5573  * Notes:
5574  *        1. result is in descenting order: 1w2d3h4m5s
5575  *        2. zero fields are not filled (except for p. 3): 5d1s
5576  *        3. zero seconds value is presented as "0s"
5577  */
5578 static char * __sec2str(time_t seconds, char *buf)
5579 {
5580         const char spec[] = "smhdw";
5581         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5582         unsigned long c;
5583         char *tail = buf;
5584         int i;
5585
5586         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
5587                 c = seconds / mult[i];
5588
5589                 if (c > 0 || (i == 0 && buf == tail))
5590                         tail += snprintf(tail, 40-(tail-buf), "%lu%c", c, spec[i]);
5591
5592                 seconds %= mult[i];
5593         }
5594
5595         return tail;
5596 }
5597
5598 static void sec2str(time_t seconds, char *buf, int rc)
5599 {
5600         char *tail = buf;
5601
5602         if (rc)
5603                 *tail++ = '[';
5604
5605         tail = __sec2str(seconds, tail);
5606
5607         if (rc && tail - buf < 39) {
5608                 *tail++ = ']';
5609                 *tail++ = 0;
5610         }
5611 }
5612
5613 static void diff2str(time_t seconds, char *buf, time_t now)
5614 {
5615
5616         buf[0] = 0;
5617         if (!seconds)
5618                 return;
5619         if (seconds <= now) {
5620                 strcpy(buf, "none");
5621                 return;
5622         }
5623         __sec2str(seconds - now, buf);
5624 }
5625
5626 static void print_quota_title(char *name, struct if_quotactl *qctl,
5627                               bool human_readable)
5628 {
5629         printf("Disk quotas for %s %s (%cid %u):\n",
5630                qtype_name(qctl->qc_type), name,
5631                *qtype_name(qctl->qc_type), qctl->qc_id);
5632         printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
5633                "Filesystem", human_readable ? "used" : "kbytes",
5634                "quota", "limit", "grace",
5635                "files", "quota", "limit", "grace");
5636 }
5637
5638 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
5639 {
5640         if (!h) {
5641                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
5642         } else {
5643                 if (num >> 40)
5644                         snprintf(buf, buflen, "%5.4gP",
5645                                  (double)num / ((__u64)1 << 40));
5646                 else if (num >> 30)
5647                         snprintf(buf, buflen, "%5.4gT",
5648                                  (double)num / (1 << 30));
5649                 else if (num >> 20)
5650                         snprintf(buf, buflen, "%5.4gG",
5651                                  (double)num / (1 << 20));
5652                 else if (num >> 10)
5653                         snprintf(buf, buflen, "%5.4gM",
5654                                  (double)num / (1 << 10));
5655                 else
5656                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
5657         }
5658 }
5659
5660 #define STRBUF_LEN      32
5661 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
5662                         int rc, bool h)
5663 {
5664         time_t now;
5665
5666         time(&now);
5667
5668         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA) {
5669                 int bover = 0, iover = 0;
5670                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
5671                 char numbuf[3][STRBUF_LEN];
5672                 char timebuf[40];
5673                 char strbuf[STRBUF_LEN];
5674
5675                 if (dqb->dqb_bhardlimit &&
5676                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
5677                         bover = 1;
5678                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
5679                         if (dqb->dqb_btime > now) {
5680                                 bover = 2;
5681                         } else {
5682                                 bover = 3;
5683                         }
5684                 }
5685
5686                 if (dqb->dqb_ihardlimit &&
5687                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
5688                         iover = 1;
5689                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
5690                         if (dqb->dqb_itime > now) {
5691                                 iover = 2;
5692                         } else {
5693                                 iover = 3;
5694                         }
5695                 }
5696
5697
5698                 if (strlen(mnt) > 15)
5699                         printf("%s\n%15s", mnt, "");
5700                 else
5701                         printf("%15s", mnt);
5702
5703                 if (bover)
5704                         diff2str(dqb->dqb_btime, timebuf, now);
5705
5706                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
5707                            strbuf, sizeof(strbuf), h);
5708                 if (rc == -EREMOTEIO)
5709                         sprintf(numbuf[0], "%s*", strbuf);
5710                 else
5711                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
5712                                 "%s" : "[%s]", strbuf);
5713
5714                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
5715                 if (type == QC_GENERAL)
5716                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
5717                                 "%s" : "[%s]", strbuf);
5718                 else
5719                         sprintf(numbuf[1], "%s", "-");
5720
5721                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
5722                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
5723                         "%s" : "[%s]", strbuf);
5724
5725                 printf(" %7s%c %6s %7s %7s",
5726                        numbuf[0], bover ? '*' : ' ', numbuf[1],
5727                        numbuf[2], bover > 1 ? timebuf : "-");
5728
5729                 if (iover)
5730                         diff2str(dqb->dqb_itime, timebuf, now);
5731
5732                 sprintf(numbuf[0], (dqb->dqb_valid & QIF_INODES) ?
5733                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_curinodes);
5734
5735                 if (type == QC_GENERAL)
5736                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
5737                                 "%ju" : "[%ju]",
5738                                 (uintmax_t)dqb->dqb_isoftlimit);
5739                 else
5740                         sprintf(numbuf[1], "%s", "-");
5741
5742                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
5743                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
5744
5745                 if (type != QC_OSTIDX)
5746                         printf(" %7s%c %6s %7s %7s",
5747                                numbuf[0], iover ? '*' : ' ', numbuf[1],
5748                                numbuf[2], iover > 1 ? timebuf : "-");
5749                 else
5750                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
5751                 printf("\n");
5752
5753         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
5754                    qctl->qc_cmd == Q_GETOINFO) {
5755                 char bgtimebuf[40];
5756                 char igtimebuf[40];
5757
5758                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
5759                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
5760                 printf("Block grace time: %s; Inode grace time: %s\n",
5761                        bgtimebuf, igtimebuf);
5762         }
5763 }
5764
5765 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
5766                            bool h, __u64 *total)
5767 {
5768         int rc = 0, rc1 = 0, count = 0;
5769         __u32 valid = qctl->qc_valid;
5770
5771         rc = llapi_get_obd_count(mnt, &count, is_mdt);
5772         if (rc) {
5773                 fprintf(stderr, "can not get %s count: %s\n",
5774                         is_mdt ? "mdt": "ost", strerror(-rc));
5775                 return rc;
5776         }
5777
5778         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
5779                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
5780                 rc = llapi_quotactl(mnt, qctl);
5781                 if (rc) {
5782                         /* It is remote client case. */
5783                         if (rc == -EOPNOTSUPP) {
5784                                 rc = 0;
5785                                 goto out;
5786                         }
5787
5788                         if (!rc1)
5789                                 rc1 = rc;
5790                         fprintf(stderr, "quotactl %s%d failed.\n",
5791                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
5792                         continue;
5793                 }
5794
5795                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
5796                             qctl->qc_valid, 0, h);
5797                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
5798                                    qctl->qc_dqblk.dqb_bhardlimit;
5799         }
5800 out:
5801         qctl->qc_valid = valid;
5802         return rc ? : rc1;
5803 }
5804
5805 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
5806                            int verbose, int quiet, bool human_readable)
5807 {
5808         int rc1 = 0, rc2 = 0, rc3 = 0;
5809         char *obd_type = (char *)qctl->obd_type;
5810         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
5811         __u64 total_ialloc = 0, total_balloc = 0;
5812         int inacc;
5813
5814         rc1 = llapi_quotactl(mnt, qctl);
5815         if (rc1 < 0) {
5816                 switch (rc1) {
5817                 case -ESRCH:
5818                         fprintf(stderr, "%s quotas are not enabled.\n",
5819                                 qtype_name(qctl->qc_type));
5820                         goto out;
5821                 case -EPERM:
5822                         fprintf(stderr, "Permission denied.\n");
5823                 case -ENODEV:
5824                 case -ENOENT:
5825                         /* We already got error message. */
5826                         goto out;
5827                 default:
5828                         fprintf(stderr, "Unexpected quotactl error: %s\n",
5829                                 strerror(-rc1));
5830                 }
5831         }
5832
5833         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA && !quiet)
5834                 print_quota_title(name, qctl, human_readable);
5835
5836         if (rc1 && *obd_type)
5837                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
5838
5839         if (qctl->qc_valid != QC_GENERAL)
5840                 mnt = "";
5841
5842         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA) &&
5843                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
5844                  (QIF_LIMITS|QIF_USAGE));
5845
5846         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable);
5847
5848         if (qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
5849             verbose) {
5850                 char strbuf[STRBUF_LEN];
5851
5852                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
5853                                       &total_ialloc);
5854                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
5855                                       &total_balloc);
5856                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
5857                            human_readable);
5858                 printf("Total allocated inode limit: %ju, total "
5859                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
5860                        strbuf);
5861         }
5862
5863         if (rc1 || rc2 || rc3 || inacc)
5864                 printf("Some errors happened when getting quota info. "
5865                        "Some devices may be not working or deactivated. "
5866                        "The data in \"[]\" is inaccurate.\n");
5867 out:
5868         return rc1;
5869
5870 }
5871
5872 static int lfs_project(int argc, char **argv)
5873 {
5874         int ret = 0, err = 0, c, i;
5875         struct project_handle_control phc = { 0 };
5876         enum lfs_project_ops_t op;
5877
5878         phc.newline = true;
5879         phc.assign_projid = false;
5880         /* default action */
5881         op = LFS_PROJECT_LIST;
5882
5883         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
5884                 switch (c) {
5885                 case 'c':
5886                         if (op != LFS_PROJECT_LIST) {
5887                                 fprintf(stderr,
5888                                         "%s: cannot specify '-c' '-C' '-s' together\n",
5889                                         progname);
5890                                 return CMD_HELP;
5891                         }
5892
5893                         op = LFS_PROJECT_CHECK;
5894                         break;
5895                 case 'C':
5896                         if (op != LFS_PROJECT_LIST) {
5897                                 fprintf(stderr,
5898                                         "%s: cannot specify '-c' '-C' '-s' together\n",
5899                                         progname);
5900                                 return CMD_HELP;
5901                         }
5902
5903                         op = LFS_PROJECT_CLEAR;
5904                         break;
5905                 case 's':
5906                         if (op != LFS_PROJECT_LIST) {
5907                                 fprintf(stderr,
5908                                         "%s: cannot specify '-c' '-C' '-s' together\n",
5909                                         progname);
5910                                 return CMD_HELP;
5911                         }
5912
5913                         phc.set_inherit = true;
5914                         op = LFS_PROJECT_SET;
5915                         break;
5916                 case 'd':
5917                         phc.dironly = true;
5918                         break;
5919                 case 'k':
5920                         phc.keep_projid = true;
5921                         break;
5922                 case 'r':
5923                         phc.recursive = true;
5924                         break;
5925                 case 'p':
5926                         phc.projid = strtoul(optarg, NULL, 0);
5927                         phc.assign_projid = true;
5928
5929                         break;
5930                 case '0':
5931                         phc.newline = false;
5932                         break;
5933                 default:
5934                         fprintf(stderr, "%s: invalid option '%c'\n",
5935                                 progname, optopt);
5936                         return CMD_HELP;
5937                 }
5938         }
5939
5940         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
5941                 op = LFS_PROJECT_SET;
5942                 phc.set_projid = true;
5943         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
5944                 phc.set_projid = true;
5945         }
5946
5947         switch (op) {
5948         case LFS_PROJECT_CHECK:
5949                 if (phc.keep_projid) {
5950                         fprintf(stderr,
5951                                 "%s: '-k' is useless together with '-c'\n",
5952                                 progname);
5953                         return CMD_HELP;
5954                 }
5955                 break;
5956         case LFS_PROJECT_CLEAR:
5957                 if (!phc.newline) {
5958                         fprintf(stderr,
5959                                 "%s: '-0' is useless together with '-C'\n",
5960                                 progname);
5961                         return CMD_HELP;
5962                 }
5963                 if (phc.assign_projid) {
5964                         fprintf(stderr,
5965                                 "%s: '-p' is useless together with '-C'\n",
5966                                 progname);
5967                         return CMD_HELP;
5968                 }
5969                 break;
5970         case LFS_PROJECT_SET:
5971                 if (!phc.newline) {
5972                         fprintf(stderr,
5973                                 "%s: '-0' is useless together with '-s'\n",
5974                                 progname);
5975                         return CMD_HELP;
5976                 }
5977                 if (phc.keep_projid) {
5978                         fprintf(stderr,
5979                                 "%s: '-k' is useless together with '-s'\n",
5980                                 progname);
5981                         return CMD_HELP;
5982                 }
5983                 break;
5984         default:
5985                 if (!phc.newline) {
5986                         fprintf(stderr,
5987                                 "%s: '-0' is useless for list operations\n",
5988                                 progname);
5989                         return CMD_HELP;
5990                 }
5991                 break;
5992         }
5993
5994         argv += optind;
5995         argc -= optind;
5996         if (argc == 0) {
5997                 fprintf(stderr, "%s: missing file or directory target(s)\n",
5998                         progname);
5999                 return CMD_HELP;
6000         }
6001
6002         for (i = 0; i < argc; i++) {
6003                 switch (op) {
6004                 case LFS_PROJECT_CHECK:
6005                         err = lfs_project_check(argv[i], &phc);
6006                         break;
6007                 case LFS_PROJECT_LIST:
6008                         err = lfs_project_list(argv[i], &phc);
6009                         break;
6010                 case LFS_PROJECT_CLEAR:
6011                         err = lfs_project_clear(argv[i], &phc);
6012                         break;
6013                 case LFS_PROJECT_SET:
6014                         err = lfs_project_set(argv[i], &phc);
6015                         break;
6016                 default:
6017                         break;
6018                 }
6019                 if (err && !ret)
6020                         ret = err;
6021         }
6022
6023         return ret;
6024 }
6025
6026 static int lfs_quota(int argc, char **argv)
6027 {
6028         int c;
6029         char *mnt, *name = NULL;
6030         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
6031                                     .qc_type = ALLQUOTA };
6032         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
6033         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
6034         char *endptr;
6035         __u32 valid = QC_GENERAL, idx = 0;
6036         bool human_readable = false;
6037         int qtype;
6038
6039         while ((c = getopt(argc, argv, "gi:I:o:pqtuvh")) != -1) {
6040                 switch (c) {
6041                 case 'u':
6042                         qtype = USRQUOTA;
6043                         goto quota_type;
6044                 case 'g':
6045                         qtype = GRPQUOTA;
6046                         goto quota_type;
6047                 case 'p':
6048                         qtype = PRJQUOTA;
6049 quota_type:
6050                         if (qctl.qc_type != ALLQUOTA) {
6051                                 fprintf(stderr,
6052                                         "%s quota: only one of -u, -g, or -p may be specified\n",
6053                                         progname);
6054                                 return CMD_HELP;
6055                         }
6056                         qctl.qc_type = qtype;
6057                         break;
6058                 case 't':
6059                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
6060                         break;
6061                 case 'o':
6062                         valid = qctl.qc_valid = QC_UUID;
6063                         snprintf(obd_uuid, sizeof(qctl.obd_uuid), "%s", optarg);
6064                         break;
6065                 case 'i':
6066                         valid = qctl.qc_valid = QC_MDTIDX;
6067                         idx = qctl.qc_idx = atoi(optarg);
6068                         if (idx == 0 && *optarg != '0') {
6069                                 fprintf(stderr,
6070                                         "%s quota: invalid MDT index '%s'\n",
6071                                         progname, optarg);
6072                                 return CMD_HELP;
6073                         }
6074                         break;
6075                 case 'I':
6076                         valid = qctl.qc_valid = QC_OSTIDX;
6077                         idx = qctl.qc_idx = atoi(optarg);
6078                         if (idx == 0 && *optarg != '0') {
6079                                 fprintf(stderr,
6080                                         "%s quota: invalid OST index '%s'\n",
6081                                         progname, optarg);
6082                                 return CMD_HELP;
6083                         }
6084                         break;
6085                 case 'v':
6086                         verbose = 1;
6087                         break;
6088                 case 'q':
6089                         quiet = 1;
6090                         break;
6091                 case 'h':
6092                         human_readable = true;
6093                         break;
6094                 default:
6095                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
6096                                 progname, argv[optind - 1]);
6097                         return CMD_HELP;
6098                 }
6099         }
6100
6101         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
6102         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
6103             optind == argc - 1) {
6104
6105                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
6106                 qctl.qc_valid = valid;
6107                 qctl.qc_idx = idx;
6108
6109                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
6110                         qctl.qc_type = qtype;
6111                         if (qtype == USRQUOTA) {
6112                                 qctl.qc_id = geteuid();
6113                                 rc = uid2name(&name, qctl.qc_id);
6114                         } else {
6115                                 qctl.qc_id = getegid();
6116                                 rc = gid2name(&name, qctl.qc_id);
6117                         }
6118                         if (rc)
6119                                 name = "<unknown>";
6120                         mnt = argv[optind];
6121                         rc1 = get_print_quota(mnt, name, &qctl, verbose, quiet,
6122                                               human_readable);
6123                         if (rc1 && !rc)
6124                                 rc = rc1;
6125                 }
6126                 return rc;
6127         /* lfs quota -u username /path/to/lustre/mount */
6128         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
6129                 /* options should be followed by u/g-name and mntpoint */
6130                 if (optind + 2 != argc || qctl.qc_type == ALLQUOTA) {
6131                         fprintf(stderr,
6132                                 "%s quota: name and mount point must be specified\n",
6133                                 progname);
6134                         return CMD_HELP;
6135                 }
6136
6137                 name = argv[optind++];
6138                 switch (qctl.qc_type) {
6139                 case USRQUOTA:
6140                         rc = name2uid(&qctl.qc_id, name);
6141                         break;
6142                 case GRPQUOTA:
6143                         rc = name2gid(&qctl.qc_id, name);
6144                         break;
6145                 case PRJQUOTA:
6146                         rc = name2projid(&qctl.qc_id, name);
6147                         break;
6148                 default:
6149                         rc = -ENOTSUP;
6150                         break;
6151                 }
6152                 if (rc) {
6153                         qctl.qc_id = strtoul(name, &endptr, 10);
6154                         if (*endptr != '\0') {
6155                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
6156                                         progname, name);
6157                                 return CMD_HELP;
6158                         }
6159                 }
6160         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
6161                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
6162                         progname);
6163                 return CMD_HELP;
6164         }
6165
6166         mnt = argv[optind];
6167         rc = get_print_quota(mnt, name, &qctl, verbose, quiet,
6168                              human_readable);
6169         return rc;
6170 }
6171 #endif /* HAVE_SYS_QUOTA_H! */
6172
6173 static int flushctx_ioctl(char *mp)
6174 {
6175         int fd, rc;
6176
6177         fd = open(mp, O_RDONLY);
6178         if (fd == -1) {
6179                 fprintf(stderr, "flushctx: error open %s: %s\n",
6180                         mp, strerror(errno));
6181                 return -1;
6182         }
6183
6184         rc = ioctl(fd, LL_IOC_FLUSHCTX);
6185         if (rc == -1)
6186                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
6187                         mp, strerror(errno));
6188
6189         close(fd);
6190         return rc;
6191 }
6192
6193 static int lfs_flushctx(int argc, char **argv)
6194 {
6195         int     kdestroy = 0, c;
6196         char    mntdir[PATH_MAX] = {'\0'};
6197         int     index = 0;
6198         int     rc = 0;
6199
6200         while ((c = getopt(argc, argv, "k")) != -1) {
6201                 switch (c) {
6202                 case 'k':
6203                         kdestroy = 1;
6204                         break;
6205                 default:
6206                         fprintf(stderr, "error: %s: option '-%c' "
6207                                         "unrecognized\n", argv[0], c);
6208                         return CMD_HELP;
6209                 }
6210         }
6211
6212         if (kdestroy) {
6213             if ((rc = system("kdestroy > /dev/null")) != 0) {
6214                 rc = WEXITSTATUS(rc);
6215                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
6216             }
6217         }
6218
6219         if (optind >= argc) {
6220                 /* flush for all mounted lustre fs. */
6221                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
6222                         /* Check if we have a mount point */
6223                         if (mntdir[0] == '\0')
6224                                 continue;
6225
6226                         if (flushctx_ioctl(mntdir))
6227                                 rc = -1;
6228
6229                         mntdir[0] = '\0'; /* avoid matching in next loop */
6230                 }
6231         } else {
6232                 /* flush fs as specified */
6233                 while (optind < argc) {
6234                         if (flushctx_ioctl(argv[optind++]))
6235                                 rc = -1;
6236                 }
6237         }
6238         return rc;
6239 }
6240
6241 static int lfs_cp(int argc, char **argv)
6242 {
6243         fprintf(stderr, "remote client copy file(s).\n"
6244                 "obsolete, does not support it anymore.\n");
6245         return 0;
6246 }
6247
6248 static int lfs_ls(int argc, char **argv)
6249 {
6250         fprintf(stderr, "remote client lists directory contents.\n"
6251                 "obsolete, does not support it anymore.\n");
6252         return 0;
6253 }
6254
6255 static int lfs_changelog(int argc, char **argv)
6256 {
6257         void *changelog_priv;
6258         struct changelog_rec *rec;
6259         long long startrec = 0, endrec = 0;
6260         char *mdd;
6261         struct option long_opts[] = {
6262                 { .val = 'f', .name = "follow", .has_arg = no_argument },
6263                 { .name = NULL } };
6264         char short_opts[] = "f";
6265         int rc, follow = 0;
6266
6267         while ((rc = getopt_long(argc, argv, short_opts,
6268                 long_opts, NULL)) != -1) {
6269                 switch (rc) {
6270                 case 'f':
6271                         follow++;
6272                         break;
6273                 default:
6274                         fprintf(stderr,
6275                                 "%s changelog: unrecognized option '%s'\n",
6276                                 progname, argv[optind - 1]);
6277                         return CMD_HELP;
6278                 }
6279         }
6280         if (optind >= argc) {
6281                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
6282                         progname);
6283                 return CMD_HELP;
6284         }
6285
6286         mdd = argv[optind++];
6287         if (argc > optind)
6288                 startrec = strtoll(argv[optind++], NULL, 10);
6289         if (argc > optind)
6290                 endrec = strtoll(argv[optind++], NULL, 10);
6291
6292         rc = llapi_changelog_start(&changelog_priv,
6293                                    CHANGELOG_FLAG_BLOCK |
6294                                    CHANGELOG_FLAG_JOBID |
6295                                    CHANGELOG_FLAG_EXTRA_FLAGS |
6296                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
6297                                    mdd, startrec);
6298         if (rc < 0) {
6299                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
6300                         progname, strerror(errno = -rc));
6301                 return rc;
6302         }
6303
6304         rc = llapi_changelog_set_xflags(changelog_priv,
6305                                         CHANGELOG_EXTRA_FLAG_UIDGID |
6306                                         CHANGELOG_EXTRA_FLAG_NID |
6307                                         CHANGELOG_EXTRA_FLAG_OMODE |
6308                                         CHANGELOG_EXTRA_FLAG_XATTR);
6309         if (rc < 0) {
6310                 fprintf(stderr,
6311                         "%s changelog: cannot set xflags for changelog: %s\n",
6312                         progname, strerror(errno = -rc));
6313                 return rc;
6314         }
6315
6316         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
6317                 time_t secs;
6318                 struct tm ts;
6319
6320                 if (endrec && rec->cr_index > endrec) {
6321                         llapi_changelog_free(&rec);
6322                         break;
6323                 }
6324                 if (rec->cr_index < startrec) {
6325                         llapi_changelog_free(&rec);
6326                         continue;
6327                 }
6328
6329                 secs = rec->cr_time >> 30;
6330                 gmtime_r(&secs, &ts);
6331                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
6332                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
6333                        changelog_type2str(rec->cr_type),
6334                        ts.tm_hour, ts.tm_min, ts.tm_sec,
6335                        (int)(rec->cr_time & ((1 << 30) - 1)),
6336                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
6337                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
6338
6339                 if (rec->cr_flags & CLF_JOBID) {
6340                         struct changelog_ext_jobid *jid =
6341                                 changelog_rec_jobid(rec);
6342
6343                         if (jid->cr_jobid[0] != '\0')
6344                                 printf(" j=%s", jid->cr_jobid);
6345                 }
6346
6347                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
6348                         struct changelog_ext_extra_flags *ef =
6349                                 changelog_rec_extra_flags(rec);
6350
6351                         printf(" ef=0x%llx", ef->cr_extra_flags);
6352
6353                         if (ef->cr_extra_flags & CLFE_UIDGID) {
6354                                 struct changelog_ext_uidgid *uidgid =
6355                                         changelog_rec_uidgid(rec);
6356
6357                                 printf(" u=%llu:%llu",
6358                                        uidgid->cr_uid, uidgid->cr_gid);
6359                         }
6360                         if (ef->cr_extra_flags & CLFE_NID) {
6361                                 struct changelog_ext_nid *nid =
6362                                         changelog_rec_nid(rec);
6363
6364                                 printf(" nid=%s",
6365                                        libcfs_nid2str(nid->cr_nid));
6366                         }
6367
6368                         if (ef->cr_extra_flags & CLFE_OPEN) {
6369                                 struct changelog_ext_openmode *omd =
6370                                         changelog_rec_openmode(rec);
6371                                 char mode[] = "---";
6372
6373                                 /* exec mode must be exclusive */
6374                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
6375                                         mode[2] = 'x';
6376                                 } else {
6377                                         if (omd->cr_openflags & MDS_FMODE_READ)
6378                                                 mode[0] = 'r';
6379                                         if (omd->cr_openflags &
6380                                             (MDS_FMODE_WRITE |
6381                                              MDS_OPEN_TRUNC |
6382                                              MDS_OPEN_APPEND))
6383                                                 mode[1] = 'w';
6384                                 }
6385
6386                                 if (strcmp(mode, "---") != 0)
6387                                         printf(" m=%s", mode);
6388
6389                         }
6390
6391                         if (ef->cr_extra_flags & CLFE_XATTR) {
6392                                 struct changelog_ext_xattr *xattr =
6393                                         changelog_rec_xattr(rec);
6394
6395                                 if (xattr->cr_xattr[0] != '\0')
6396                                         printf(" x=%s", xattr->cr_xattr);
6397                         }
6398                 }
6399
6400                 if (rec->cr_namelen)
6401                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
6402                                rec->cr_namelen, changelog_rec_name(rec));
6403
6404                 if (rec->cr_flags & CLF_RENAME) {
6405                         struct changelog_ext_rename *rnm =
6406                                 changelog_rec_rename(rec);
6407
6408                         if (!fid_is_zero(&rnm->cr_sfid))
6409                                 printf(" s="DFID" sp="DFID" %.*s",
6410                                        PFID(&rnm->cr_sfid),
6411                                        PFID(&rnm->cr_spfid),
6412                                        (int)changelog_rec_snamelen(rec),
6413                                        changelog_rec_sname(rec));
6414                 }
6415                 printf("\n");
6416
6417                 llapi_changelog_free(&rec);
6418         }
6419
6420         llapi_changelog_fini(&changelog_priv);
6421
6422         if (rc < 0)
6423                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
6424                         progname, strerror(errno = -rc));
6425
6426         return (rc == 1 ? 0 : rc);
6427 }
6428
6429 static int lfs_changelog_clear(int argc, char **argv)
6430 {
6431         long long endrec;
6432         int rc;
6433
6434         if (argc != 4)
6435                 return CMD_HELP;
6436
6437         endrec = strtoll(argv[3], NULL, 10);
6438
6439         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
6440
6441         if (rc == -EINVAL)
6442                 fprintf(stderr, "%s: record out of range: %llu\n",
6443                         argv[0], endrec);
6444         else if (rc == -ENOENT)
6445                 fprintf(stderr, "%s: no changelog user: %s\n",
6446                         argv[0], argv[2]);
6447         else if (rc)
6448                 fprintf(stderr, "%s error: %s\n", argv[0],
6449                         strerror(-rc));
6450
6451         if (rc)
6452                 errno = -rc;
6453
6454         return rc;
6455 }
6456
6457 static int lfs_fid2path(int argc, char **argv)
6458 {
6459         struct option long_opts[] = {
6460                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
6461                 { .val = 'l',   .name = "link", .has_arg = required_argument },
6462                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
6463                 { .name = NULL } };
6464         char  short_opts[] = "cl:r:";
6465         char *device, *fid, *path;
6466         long long recno = -1;
6467         int linkno = -1;
6468         int lnktmp;
6469         int printcur = 0;
6470         int rc = 0;
6471
6472         while ((rc = getopt_long(argc, argv, short_opts,
6473                 long_opts, NULL)) != -1) {
6474                 switch (rc) {
6475                 case 'c':
6476                         printcur++;
6477                         break;
6478                 case 'l':
6479                         linkno = strtol(optarg, NULL, 10);
6480                         break;
6481                 case 'r':
6482                         recno = strtoll(optarg, NULL, 10);
6483                         break;
6484                 case '?':
6485                         return CMD_HELP;
6486                 default:
6487                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
6488                                 argv[0], argv[optind - 1]);
6489                         return CMD_HELP;
6490                 }
6491         }
6492
6493         if (argc < 3)
6494                 return CMD_HELP;
6495
6496         device = argv[optind++];
6497         path = calloc(1, PATH_MAX);
6498         if (path == NULL) {
6499                 fprintf(stderr, "error: Not enough memory\n");
6500                 return -errno;
6501         }
6502
6503         rc = 0;
6504         while (optind < argc) {
6505                 fid = argv[optind++];
6506
6507                 lnktmp = (linkno >= 0) ? linkno : 0;
6508                 while (1) {
6509                         int oldtmp = lnktmp;
6510                         long long rectmp = recno;
6511                         int rc2;
6512                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
6513                                              &rectmp, &lnktmp);
6514                         if (rc2 < 0) {
6515                                 fprintf(stderr, "%s: error on FID %s: %s\n",
6516                                         argv[0], fid, strerror(errno = -rc2));
6517                                 if (rc == 0)
6518                                         rc = rc2;
6519                                 break;
6520                         }
6521
6522                         if (printcur)
6523                                 fprintf(stdout, "%lld ", rectmp);
6524                         if (device[0] == '/') {
6525                                 fprintf(stdout, "%s", device);
6526                                 if (device[strlen(device) - 1] != '/')
6527                                         fprintf(stdout, "/");
6528                         } else if (path[0] == '\0') {
6529                                 fprintf(stdout, "/");
6530                         }
6531                         fprintf(stdout, "%s\n", path);
6532
6533                         if (linkno >= 0)
6534                                 /* specified linkno */
6535                                 break;
6536                         if (oldtmp == lnktmp)
6537                                 /* no more links */
6538                                 break;
6539                 }
6540         }
6541
6542         free(path);
6543         return rc;
6544 }
6545
6546 static int lfs_path2fid(int argc, char **argv)
6547 {
6548         struct option long_opts[] = {
6549                 { .val = 'p', .name = "parents", .has_arg = no_argument },
6550                 { .name = NULL } };
6551         char            **path;
6552         const char        short_opts[] = "p";
6553         const char       *sep = "";
6554         struct lu_fid     fid;
6555         int               rc = 0;
6556         bool              show_parents = false;
6557
6558         while ((rc = getopt_long(argc, argv, short_opts,
6559                                  long_opts, NULL)) != -1) {
6560                 switch (rc) {
6561                 case 'p':
6562                         show_parents = true;
6563                         break;
6564                 default:
6565                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
6566                                 argv[0], argv[optind - 1]);
6567                         return CMD_HELP;
6568                 }
6569         }
6570
6571         if (optind > argc - 1)
6572                 return CMD_HELP;
6573         else if (optind < argc - 1)
6574                 sep = ": ";
6575
6576         rc = 0;
6577         for (path = argv + optind; *path != NULL; path++) {
6578                 int err = 0;
6579                 if (!show_parents) {
6580                         err = llapi_path2fid(*path, &fid);
6581                         if (!err)
6582                                 printf("%s%s"DFID"\n",
6583                                        *sep != '\0' ? *path : "", sep,
6584                                        PFID(&fid));
6585                 } else {
6586                         char            name[NAME_MAX + 1];
6587                         unsigned int    linkno = 0;
6588
6589                         while ((err = llapi_path2parent(*path, linkno, &fid,
6590                                                 name, sizeof(name))) == 0) {
6591                                 if (*sep != '\0' && linkno == 0)
6592                                         printf("%s%s", *path, sep);
6593
6594                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
6595                                        PFID(&fid), name);
6596                                 linkno++;
6597                         }
6598
6599                         /* err == -ENODATA is end-of-loop */
6600                         if (linkno > 0 && err == -ENODATA) {
6601                                 printf("\n");
6602                                 err = 0;
6603                         }
6604                 }
6605
6606                 if (err) {
6607                         fprintf(stderr, "%s: can't get %sfid for %s: %s\n",
6608                                 argv[0], show_parents ? "parent " : "", *path,
6609                                 strerror(-err));
6610                         if (rc == 0) {
6611                                 rc = err;
6612                                 errno = -err;
6613                         }
6614                 }
6615         }
6616
6617         return rc;
6618 }
6619
6620 static int lfs_data_version(int argc, char **argv)
6621 {
6622         char *path;
6623         __u64 data_version;
6624         int fd;
6625         int rc;
6626         int c;
6627         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
6628
6629         if (argc < 2)
6630                 return CMD_HELP;
6631
6632         while ((c = getopt(argc, argv, "nrw")) != -1) {
6633                 switch (c) {
6634                 case 'n':
6635                         data_version_flags = 0;
6636                         break;
6637                 case 'r':
6638                         data_version_flags |= LL_DV_RD_FLUSH;
6639                         break;
6640                 case 'w':
6641                         data_version_flags |= LL_DV_WR_FLUSH;
6642                         break;
6643                 default:
6644                         return CMD_HELP;
6645                 }
6646         }
6647         if (optind == argc)
6648                 return CMD_HELP;
6649
6650         path = argv[optind];
6651         fd = open(path, O_RDONLY);
6652         if (fd < 0)
6653                 err(errno, "cannot open file %s", path);
6654
6655         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
6656         if (rc < 0)
6657                 err(errno, "cannot get version for %s", path);
6658         else
6659                 printf("%ju" "\n", (uintmax_t)data_version);
6660
6661         close(fd);
6662         return rc;
6663 }
6664
6665 static int lfs_hsm_state(int argc, char **argv)
6666 {
6667         int rc;
6668         int i = 1;
6669         char *path;
6670         struct hsm_user_state hus;
6671
6672         if (argc < 2)
6673                 return CMD_HELP;
6674
6675         do {
6676                 path = argv[i];
6677
6678                 rc = llapi_hsm_state_get(path, &hus);
6679                 if (rc) {
6680                         fprintf(stderr, "can't get hsm state for %s: %s\n",
6681                                 path, strerror(errno = -rc));
6682                         return rc;
6683                 }
6684
6685                 /* Display path name and status flags */
6686                 printf("%s: (0x%08x)", path, hus.hus_states);
6687
6688                 if (hus.hus_states & HS_RELEASED)
6689                         printf(" released");
6690                 if (hus.hus_states & HS_EXISTS)
6691                         printf(" exists");
6692                 if (hus.hus_states & HS_DIRTY)
6693                         printf(" dirty");
6694                 if (hus.hus_states & HS_ARCHIVED)
6695                         printf(" archived");
6696                 /* Display user-settable flags */
6697                 if (hus.hus_states & HS_NORELEASE)
6698                         printf(" never_release");
6699                 if (hus.hus_states & HS_NOARCHIVE)
6700                         printf(" never_archive");
6701                 if (hus.hus_states & HS_LOST)
6702                         printf(" lost_from_hsm");
6703
6704                 if (hus.hus_archive_id != 0)
6705                         printf(", archive_id:%d", hus.hus_archive_id);
6706                 printf("\n");
6707
6708         } while (++i < argc);
6709
6710         return 0;
6711 }
6712
6713 #define LFS_HSM_SET   0
6714 #define LFS_HSM_CLEAR 1
6715
6716 /**
6717  * Generic function to set or clear HSM flags.
6718  * Used by hsm_set and hsm_clear.
6719  *
6720  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
6721  */
6722 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
6723 {
6724         struct option long_opts[] = {
6725         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
6726         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
6727         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
6728         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
6729         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
6730         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
6731         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
6732         { .name = NULL } };
6733         char short_opts[] = "lraAdei:";
6734         __u64 mask = 0;
6735         int c, rc;
6736         char *path;
6737         __u32 archive_id = 0;
6738         char *end = NULL;
6739
6740         if (argc < 3)
6741                 return CMD_HELP;
6742
6743         while ((c = getopt_long(argc, argv, short_opts,
6744                                 long_opts, NULL)) != -1) {
6745                 switch (c) {
6746                 case 'l':
6747                         mask |= HS_LOST;
6748                         break;
6749                 case 'a':
6750                         mask |= HS_NOARCHIVE;
6751                         break;
6752                 case 'A':
6753                         mask |= HS_ARCHIVED;
6754                         break;
6755                 case 'r':
6756                         mask |= HS_NORELEASE;
6757                         break;
6758                 case 'd':
6759                         mask |= HS_DIRTY;
6760                         break;
6761                 case 'e':
6762                         mask |= HS_EXISTS;
6763                         break;
6764                 case 'i':
6765                         archive_id = strtol(optarg, &end, 10);
6766                         if (*end != '\0') {
6767                                 fprintf(stderr, "invalid archive_id: '%s'\n",
6768                                         end);
6769                                 return CMD_HELP;
6770                         }
6771                         break;
6772                 case '?':
6773                         return CMD_HELP;
6774                 default:
6775                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
6776                                 argv[0], argv[optind - 1]);
6777                         return CMD_HELP;
6778                 }
6779         }
6780
6781         /* User should have specified a flag */
6782         if (mask == 0)
6783                 return CMD_HELP;
6784
6785         while (optind < argc) {
6786
6787                 path = argv[optind];
6788
6789                 /* If mode == 0, this means we apply the mask. */
6790                 if (mode == LFS_HSM_SET)
6791                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
6792                 else
6793                         rc = llapi_hsm_state_set(path, 0, mask, 0);
6794
6795                 if (rc != 0) {
6796                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
6797                                 path, strerror(errno = -rc));
6798                         return rc;
6799                 }
6800                 optind++;
6801         }
6802
6803         return 0;
6804 }
6805
6806 static int lfs_hsm_action(int argc, char **argv)
6807 {
6808         int                              rc;
6809         int                              i = 1;
6810         char                            *path;
6811         struct hsm_current_action        hca;
6812         struct hsm_extent                he;
6813         enum hsm_user_action             hua;
6814         enum hsm_progress_states         hps;
6815
6816         if (argc < 2)
6817                 return CMD_HELP;
6818
6819         do {
6820                 path = argv[i];
6821
6822                 rc = llapi_hsm_current_action(path, &hca);
6823                 if (rc) {
6824                         fprintf(stderr, "can't get hsm action for %s: %s\n",
6825                                 path, strerror(errno = -rc));
6826                         return rc;
6827                 }
6828                 he = hca.hca_location;
6829                 hua = hca.hca_action;
6830                 hps = hca.hca_state;
6831
6832                 printf("%s: %s", path, hsm_user_action2name(hua));
6833
6834                 /* Skip file without action */
6835                 if (hca.hca_action == HUA_NONE) {
6836                         printf("\n");
6837                         continue;
6838                 }
6839
6840                 printf(" %s ", hsm_progress_state2name(hps));
6841
6842                 if ((hps == HPS_RUNNING) &&
6843                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
6844                         printf("(%llu bytes moved)\n",
6845                                (unsigned long long)he.length);
6846                 else if ((he.offset + he.length) == LUSTRE_EOF)
6847                         printf("(from %llu to EOF)\n",
6848                                (unsigned long long)he.offset);
6849                 else
6850                         printf("(from %llu to %llu)\n",
6851                                (unsigned long long)he.offset,
6852                                (unsigned long long)(he.offset + he.length));
6853
6854         } while (++i < argc);
6855
6856         return 0;
6857 }
6858
6859 static int lfs_hsm_set(int argc, char **argv)
6860 {
6861         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
6862 }
6863
6864 static int lfs_hsm_clear(int argc, char **argv)
6865 {
6866         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
6867 }
6868
6869 /**
6870  * Check file state and return its fid, to be used by lfs_hsm_request().
6871  *
6872  * \param[in]     file      Path to file to check
6873  * \param[in,out] fid       Pointer to allocated lu_fid struct.
6874  * \param[in,out] last_dev  Pointer to last device id used.
6875  *
6876  * \return 0 on success.
6877  */
6878 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
6879                                 dev_t *last_dev)
6880 {
6881         struct stat     st;
6882         int             rc;
6883
6884         rc = lstat(file, &st);
6885         if (rc) {
6886                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
6887                 return -errno;
6888         }
6889         /* Checking for regular file as archiving as posix copytool
6890          * rejects archiving files other than regular files
6891          */
6892         if (!S_ISREG(st.st_mode)) {
6893                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
6894                 return CMD_HELP;
6895         }
6896         /* A request should be ... */
6897         if (*last_dev != st.st_dev && *last_dev != 0) {
6898                 fprintf(stderr, "All files should be "
6899                         "on the same filesystem: %s\n", file);
6900                 return -EINVAL;
6901         }
6902         *last_dev = st.st_dev;
6903
6904         rc = llapi_path2fid(file, fid);
6905         if (rc) {
6906                 fprintf(stderr, "Cannot read FID of %s: %s\n",
6907                         file, strerror(-rc));
6908                 return rc;
6909         }
6910         return 0;
6911 }
6912
6913 /* Fill an HSM HUR item with a given file name.
6914  *
6915  * If mntpath is set, then the filename is actually a FID, and no
6916  * lookup on the filesystem will be performed.
6917  *
6918  * \param[in]  hur         the user request to fill
6919  * \param[in]  idx         index of the item inside the HUR to fill
6920  * \param[in]  mntpath     mountpoint of Lustre
6921  * \param[in]  fname       filename (if mtnpath is NULL)
6922  *                         or FID (if mntpath is set)
6923  * \param[in]  last_dev    pointer to last device id used
6924  *
6925  * \retval 0 on success
6926  * \retval CMD_HELP or a negative errno on error
6927  */
6928 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
6929                          const char *mntpath, const char *fname,
6930                          dev_t *last_dev)
6931 {
6932         struct hsm_user_item *hui = &hur->hur_user_item[idx];
6933         int rc;
6934
6935         hui->hui_extent.length = -1;
6936
6937         if (mntpath != NULL) {
6938                 if (*fname == '[')
6939                         fname++;
6940                 rc = sscanf(fname, SFID, RFID(&hui->hui_fid));
6941                 if (rc == 3) {
6942                         rc = 0;
6943                 } else {
6944                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
6945                                 fname);
6946                         rc = -EINVAL;
6947                 }
6948         } else {
6949                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
6950         }
6951
6952         if (rc == 0)
6953                 hur->hur_request.hr_itemcount++;
6954
6955         return rc;
6956 }
6957
6958 static int lfs_hsm_request(int argc, char **argv, int action)
6959 {
6960         struct option long_opts[] = {
6961         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
6962         { .val = 'D',   .name = "data",         .has_arg = required_argument },
6963         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
6964         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
6965         { .name = NULL } };
6966         dev_t                    last_dev = 0;
6967         char                     short_opts[] = "l:D:a:m:";
6968         struct hsm_user_request *hur, *oldhur;
6969         int                      c, i;
6970         size_t                   len;
6971         int                      nbfile;
6972         char                    *line = NULL;
6973         char                    *filelist = NULL;
6974         char                     fullpath[PATH_MAX];
6975         char                    *opaque = NULL;
6976         int                      opaque_len = 0;
6977         int                      archive_id = 0;
6978         FILE                    *fp;
6979         int                      nbfile_alloc = 0;
6980         char                    *some_file = NULL;
6981         char                    *mntpath = NULL;
6982         int                      rc;
6983
6984         if (argc < 2)
6985                 return CMD_HELP;
6986
6987         while ((c = getopt_long(argc, argv, short_opts,
6988                                 long_opts, NULL)) != -1) {
6989                 switch (c) {
6990                 case 'l':
6991                         filelist = optarg;
6992                         break;
6993                 case 'D':
6994                         opaque = optarg;
6995                         break;
6996                 case 'a':
6997                         if (action != HUA_ARCHIVE &&
6998                             action != HUA_REMOVE) {
6999                                 fprintf(stderr,
7000                                         "error: -a is supported only "
7001                                         "when archiving or removing\n");
7002                                 return CMD_HELP;
7003                         }
7004                         archive_id = atoi(optarg);
7005                         break;
7006                 case 'm':
7007                         if (some_file == NULL) {
7008                                 mntpath = optarg;
7009                                 some_file = strdup(optarg);
7010                         }
7011                         break;
7012                 case '?':
7013                         return CMD_HELP;
7014                 default:
7015                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7016                                 argv[0], argv[optind - 1]);
7017                         return CMD_HELP;
7018                 }
7019         }
7020
7021         /* All remaining args are files, so we have at least nbfile */
7022         nbfile = argc - optind;
7023
7024         if ((nbfile == 0) && (filelist == NULL))
7025                 return CMD_HELP;
7026
7027         if (opaque != NULL)
7028                 opaque_len = strlen(opaque);
7029
7030         /* Alloc the request structure with enough place to store all files
7031          * from command line. */
7032         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
7033         if (hur == NULL) {
7034                 fprintf(stderr, "Cannot create the request: %s\n",
7035                         strerror(errno));
7036                 return errno;
7037         }
7038         nbfile_alloc = nbfile;
7039
7040         hur->hur_request.hr_action = action;
7041         hur->hur_request.hr_archive_id = archive_id;
7042         hur->hur_request.hr_flags = 0;
7043
7044         /* All remaining args are files, add them */
7045         if (nbfile != 0 && some_file == NULL)
7046                 some_file = strdup(argv[optind]);
7047
7048         for (i = 0; i < nbfile; i++) {
7049                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
7050                                    &last_dev);
7051                 if (rc)
7052                         goto out_free;
7053         }
7054
7055         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
7056
7057         /* If a filelist was specified, read the filelist from it. */
7058         if (filelist != NULL) {
7059                 fp = fopen(filelist, "r");
7060                 if (fp == NULL) {
7061                         fprintf(stderr, "Cannot read the file list %s: %s\n",
7062                                 filelist, strerror(errno));
7063                         rc = -errno;
7064                         goto out_free;
7065                 }
7066
7067                 while ((rc = getline(&line, &len, fp)) != -1) {
7068                         /* If allocated buffer was too small, get something
7069                          * larger */
7070                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
7071                                 ssize_t size;
7072
7073                                 nbfile_alloc = nbfile_alloc * 2 + 1;
7074                                 oldhur = hur;
7075                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
7076                                                                    opaque_len);
7077                                 if (hur == NULL) {
7078                                         fprintf(stderr, "hsm: cannot allocate "
7079                                                 "the request: %s\n",
7080                                                 strerror(errno));
7081                                         hur = oldhur;
7082                                         rc = -errno;
7083                                         fclose(fp);
7084                                         goto out_free;
7085                                 }
7086                                 size = hur_len(oldhur);
7087                                 if (size < 0) {
7088                                         fprintf(stderr, "hsm: cannot allocate "
7089                                                 "%u files + %u bytes data\n",
7090                                             oldhur->hur_request.hr_itemcount,
7091                                             oldhur->hur_request.hr_data_len);
7092                                         free(hur);
7093                                         hur = oldhur;
7094                                         rc = -E2BIG;
7095                                         fclose(fp);
7096                                         goto out_free;
7097                                 }
7098                                 memcpy(hur, oldhur, size);
7099                                 free(oldhur);
7100                         }
7101
7102                         /* Chop CR */
7103                         if (line[strlen(line) - 1] == '\n')
7104                                 line[strlen(line) - 1] = '\0';
7105
7106                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
7107                                            mntpath, line, &last_dev);
7108                         if (rc) {
7109                                 fclose(fp);
7110                                 goto out_free;
7111                         }
7112
7113                         if (some_file == NULL) {
7114                                 some_file = line;
7115                                 line = NULL;
7116                         }
7117                 }
7118
7119                 rc = fclose(fp);
7120                 free(line);
7121         }
7122
7123         /* If a --data was used, add it to the request */
7124         hur->hur_request.hr_data_len = opaque_len;
7125         if (opaque != NULL)
7126                 memcpy(hur_data(hur), opaque, opaque_len);
7127
7128         /* Send the HSM request */
7129         if (realpath(some_file, fullpath) == NULL) {
7130                 fprintf(stderr, "Could not find path '%s': %s\n",
7131                         some_file, strerror(errno));
7132         }
7133         rc = llapi_hsm_request(fullpath, hur);
7134         if (rc) {
7135                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
7136                         some_file, strerror(-rc));
7137                 goto out_free;
7138         }
7139
7140 out_free:
7141         free(some_file);
7142         free(hur);
7143         return rc;
7144 }
7145
7146 static int lfs_hsm_archive(int argc, char **argv)
7147 {
7148         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
7149 }
7150
7151 static int lfs_hsm_restore(int argc, char **argv)
7152 {
7153         return lfs_hsm_request(argc, argv, HUA_RESTORE);
7154 }
7155
7156 static int lfs_hsm_release(int argc, char **argv)
7157 {
7158         return lfs_hsm_request(argc, argv, HUA_RELEASE);
7159 }
7160
7161 static int lfs_hsm_remove(int argc, char **argv)
7162 {
7163         return lfs_hsm_request(argc, argv, HUA_REMOVE);
7164 }
7165
7166 static int lfs_hsm_cancel(int argc, char **argv)
7167 {
7168         return lfs_hsm_request(argc, argv, HUA_CANCEL);
7169 }
7170
7171 static int lfs_swap_layouts(int argc, char **argv)
7172 {
7173         if (argc != 3)
7174                 return CMD_HELP;
7175
7176         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
7177                                   SWAP_LAYOUTS_KEEP_MTIME |
7178                                   SWAP_LAYOUTS_KEEP_ATIME);
7179 }
7180
7181 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
7182
7183 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
7184
7185 int lfs_get_mode(const char *string)
7186 {
7187         enum lock_mode_user mode;
7188
7189         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
7190                 if (lock_mode_names[mode] == NULL)
7191                         continue;
7192                 if (strcmp(string, lock_mode_names[mode]) == 0)
7193                         return mode;
7194         }
7195
7196         return -EINVAL;
7197 }
7198
7199 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
7200 {
7201         enum lu_ladvise_type advice;
7202
7203         for (advice = 0;
7204              advice < ARRAY_SIZE(ladvise_names); advice++) {
7205                 if (ladvise_names[advice] == NULL)
7206                         continue;
7207                 if (strcmp(string, ladvise_names[advice]) == 0)
7208                         return advice;
7209         }
7210
7211         return LU_LADVISE_INVALID;
7212 }
7213
7214 static int lfs_ladvise(int argc, char **argv)
7215 {
7216         struct option long_opts[] = {
7217         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
7218         { .val = 'b',   .name = "background",   .has_arg = no_argument },
7219         { .val = 'e',   .name = "end",          .has_arg = required_argument },
7220         { .val = 'l',   .name = "length",       .has_arg = required_argument },
7221         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
7222         { .val = 's',   .name = "start",        .has_arg = required_argument },
7223         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
7224         { .name = NULL } };
7225         char                     short_opts[] = "a:be:l:m:s:u";
7226         int                      c;
7227         int                      rc = 0;
7228         const char              *path;
7229         int                      fd;
7230         struct llapi_lu_ladvise  advice;
7231         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
7232         unsigned long long       start = 0;
7233         unsigned long long       end = LUSTRE_EOF;
7234         unsigned long long       length = 0;
7235         unsigned long long       size_units;
7236         unsigned long long       flags = 0;
7237         int                      mode = 0;
7238
7239         optind = 0;
7240         while ((c = getopt_long(argc, argv, short_opts,
7241                                 long_opts, NULL)) != -1) {
7242                 switch (c) {
7243                 case 'a':
7244                         advice_type = lfs_get_ladvice(optarg);
7245                         if (advice_type == LU_LADVISE_INVALID) {
7246                                 fprintf(stderr, "%s: invalid advice type "
7247                                         "'%s'\n", argv[0], optarg);
7248                                 fprintf(stderr, "Valid types:");
7249
7250                                 for (advice_type = 0;
7251                                      advice_type < ARRAY_SIZE(ladvise_names);
7252                                      advice_type++) {
7253                                         if (ladvise_names[advice_type] == NULL)
7254                                                 continue;
7255                                         fprintf(stderr, " %s",
7256                                                 ladvise_names[advice_type]);
7257                                 }
7258                                 fprintf(stderr, "\n");
7259
7260                                 return CMD_HELP;
7261                         }
7262                         break;
7263                 case 'b':
7264                         flags |= LF_ASYNC;
7265                         break;
7266                 case 'u':
7267                         flags |= LF_UNSET;
7268                         break;
7269                 case 'e':
7270                         size_units = 1;
7271                         rc = llapi_parse_size(optarg, &end,
7272                                               &size_units, 0);
7273                         if (rc) {
7274                                 fprintf(stderr, "%s: bad end offset '%s'\n",
7275                                         argv[0], optarg);
7276                                 return CMD_HELP;
7277                         }
7278                         break;
7279                 case 's':
7280                         size_units = 1;
7281                         rc = llapi_parse_size(optarg, &start,
7282                                               &size_units, 0);
7283                         if (rc) {
7284                                 fprintf(stderr, "%s: bad start offset "
7285                                         "'%s'\n", argv[0], optarg);
7286                                 return CMD_HELP;
7287                         }
7288                         break;
7289                 case 'l':
7290                         size_units = 1;
7291                         rc = llapi_parse_size(optarg, &length,
7292                                               &size_units, 0);
7293                         if (rc) {
7294                                 fprintf(stderr, "%s: bad length '%s'\n",
7295                                         argv[0], optarg);
7296                                 return CMD_HELP;
7297                         }
7298                         break;
7299                 case 'm':
7300                         mode = lfs_get_mode(optarg);
7301                         if (mode < 0) {
7302                                 fprintf(stderr, "%s: bad mode '%s', valid "
7303                                                  "modes are READ or WRITE\n",
7304                                         argv[0], optarg);
7305                                 return CMD_HELP;
7306                         }
7307                         break;
7308                 case '?':
7309                         return CMD_HELP;
7310                 default:
7311                         fprintf(stderr, "%s: option '%s' unrecognized\n",
7312                                 argv[0], argv[optind - 1]);
7313                         return CMD_HELP;
7314                 }
7315         }
7316
7317         if (advice_type == LU_LADVISE_INVALID) {
7318                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
7319                 fprintf(stderr, "Valid types:");
7320                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
7321                      advice_type++) {
7322                         if (ladvise_names[advice_type] == NULL)
7323                                 continue;
7324                         fprintf(stderr, " %s", ladvise_names[advice_type]);
7325                 }
7326                 fprintf(stderr, "\n");
7327                 return CMD_HELP;
7328         }
7329
7330         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
7331                 fprintf(stderr, "%s: Lock no expand advice is a per file "
7332                                  "descriptor advice, so when called from lfs, "
7333                                  "it does nothing.\n", argv[0]);
7334                 return CMD_HELP;
7335         }
7336
7337         if (argc <= optind) {
7338                 fprintf(stderr, "%s: please give one or more file names\n",
7339                         argv[0]);
7340                 return CMD_HELP;
7341         }
7342
7343         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
7344                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
7345                         argv[0]);
7346                 return CMD_HELP;
7347         }
7348
7349         if (end == LUSTRE_EOF && length != 0)
7350                 end = start + length;
7351
7352         if (end <= start) {
7353                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
7354                         argv[0], start, end);
7355                 return CMD_HELP;
7356         }
7357
7358         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
7359                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
7360                         argv[0]);
7361                 return CMD_HELP;
7362         }
7363
7364         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
7365                 fprintf(stderr, "%s: mode is required with lockahead\n",
7366                         argv[0]);
7367                 return CMD_HELP;
7368         }
7369
7370         while (optind < argc) {
7371                 int rc2;
7372
7373                 path = argv[optind++];
7374
7375                 fd = open(path, O_RDONLY);
7376                 if (fd < 0) {
7377                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
7378                                 argv[0], path, strerror(errno));
7379                         rc2 = -errno;
7380                         goto next;
7381                 }
7382
7383                 advice.lla_start = start;
7384                 advice.lla_end = end;
7385                 advice.lla_advice = advice_type;
7386                 advice.lla_value1 = 0;
7387                 advice.lla_value2 = 0;
7388                 advice.lla_value3 = 0;
7389                 advice.lla_value4 = 0;
7390                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
7391                         advice.lla_lockahead_mode = mode;
7392                         advice.lla_peradvice_flags = flags;
7393                 }
7394
7395                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
7396                 close(fd);
7397                 if (rc2 < 0) {
7398                         fprintf(stderr, "%s: cannot give advice '%s' to file "
7399                                 "'%s': %s\n", argv[0],
7400                                 ladvise_names[advice_type],
7401                                 path, strerror(errno));
7402
7403                         goto next;
7404                 }
7405
7406 next:
7407                 if (rc == 0 && rc2 < 0)
7408                         rc = rc2;
7409         }
7410         return rc;
7411 }
7412
7413 /** The input string contains a comma delimited list of component ids and
7414  * ranges, for example "1,2-4,7".
7415  */
7416 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
7417 {
7418         bool end_of_loop = false;
7419         char *ptr = NULL;
7420         int nr = 0;
7421         int rc;
7422
7423         if (arg == NULL)
7424                 return -EINVAL;
7425
7426         while (!end_of_loop) {
7427                 int start_index;
7428                 int end_index;
7429                 int i;
7430                 char *endptr = NULL;
7431
7432                 rc = -EINVAL;
7433                 ptr = strchrnul(arg, ',');
7434                 end_of_loop = *ptr == '\0';
7435                 *ptr = '\0';
7436
7437                 start_index = strtol(arg, &endptr, 0);
7438                 if (endptr == arg) /* no data at all */
7439                         break;
7440                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
7441                         break;
7442                 if (start_index < 0)
7443                         break;
7444
7445                 end_index = start_index;
7446                 if (*endptr == '-') {
7447                         end_index = strtol(endptr + 1, &endptr, 0);
7448                         if (*endptr != '\0')
7449                                 break;
7450                         if (end_index < start_index)
7451                                 break;
7452                 }
7453
7454                 for (i = start_index; i <= end_index && size > 0; i++) {
7455                         int j;
7456
7457                         /* remove duplicate */
7458                         for (j = 0; j < nr; j++) {
7459                                 if (ids[j] == i)
7460                                         break;
7461                         }
7462                         if (j == nr) { /* no duplicate */
7463                                 ids[nr++] = i;
7464                                 --size;
7465                         }
7466                 }
7467
7468                 if (size == 0 && i < end_index)
7469                         break;
7470
7471                 *ptr = ',';
7472                 arg = ++ptr;
7473                 rc = 0;
7474         }
7475         if (!end_of_loop && ptr != NULL)
7476                 *ptr = ',';
7477
7478         return rc < 0 ? rc : nr;
7479 }
7480
7481 /**
7482  * struct verify_mirror_id - Mirror id to be verified.
7483  * @mirror_id:   A specified mirror id.
7484  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
7485  */
7486 struct verify_mirror_id {
7487         __u16 mirror_id;
7488         bool is_valid_id;
7489 };
7490
7491 /**
7492  * compare_mirror_ids() - Compare mirror ids.
7493  * @layout: Mirror component list.
7494  * @cbdata: Callback data in verify_mirror_id structure.
7495  *
7496  * This is a callback function called by llapi_layout_comp_iterate()
7497  * to compare the specified mirror id with the one in the current
7498  * component of @layout. If they are the same, then the specified
7499  * mirror id is valid.
7500  *
7501  * Return: a negative error code on failure or
7502  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
7503  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
7504  */
7505 static inline
7506 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
7507 {
7508         struct verify_mirror_id *mirror_id_cbdata =
7509                                  (struct verify_mirror_id *)cbdata;
7510         uint32_t mirror_id;
7511         int rc = 0;
7512
7513         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
7514         if (rc < 0) {
7515                 rc = -errno;
7516                 fprintf(stderr,
7517                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
7518                         progname, strerror(errno));
7519                 return rc;
7520         }
7521
7522         if (mirror_id_cbdata->mirror_id == mirror_id) {
7523                 mirror_id_cbdata->is_valid_id = true;
7524                 return LLAPI_LAYOUT_ITER_STOP;
7525         }
7526
7527         return LLAPI_LAYOUT_ITER_CONT;
7528 }
7529
7530 /**
7531  * verify_mirror_ids() - Verify specified mirror ids.
7532  * @fname:      Mirrored file name.
7533  * @mirror_ids: Specified mirror ids to be verified.
7534  * @ids_nr:     Number of specified mirror ids.
7535  *
7536  * This function verifies that specified @mirror_ids are valid
7537  * in the mirrored file @fname.
7538  *
7539  * Return: 0 on success or a negative error code on failure.
7540  */
7541 static inline
7542 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
7543 {
7544         struct llapi_layout *layout = NULL;
7545         struct verify_mirror_id mirror_id_cbdata = { 0 };
7546         struct stat stbuf;
7547         uint32_t flr_state;
7548         int i;
7549         int fd;
7550         int rc = 0;
7551         int rc2 = 0;
7552
7553         if (ids_nr <= 0)
7554                 return -EINVAL;
7555
7556         if (stat(fname, &stbuf) < 0) {
7557                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
7558                         progname, fname, strerror(errno));
7559                 rc = -errno;
7560                 goto error;
7561         }
7562
7563         if (!S_ISREG(stbuf.st_mode)) {
7564                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
7565                         progname, fname);
7566                 rc = -EINVAL;
7567                 goto error;
7568         }
7569
7570         fd = open(fname, O_DIRECT | O_RDONLY);
7571         if (fd < 0) {
7572                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
7573                         progname, fname, strerror(errno));
7574                 rc = -errno;
7575                 goto error;
7576         }
7577
7578         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
7579         if (rc < 0) {
7580                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
7581                         progname, fname, strerror(errno));
7582                 goto close_fd;
7583         }
7584
7585         layout = llapi_layout_get_by_fd(fd, 0);
7586         if (layout == NULL) {
7587                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
7588                         progname, fname, strerror(errno));
7589                 rc = -errno;
7590                 llapi_lease_release(fd);
7591                 goto close_fd;
7592         }
7593
7594         rc = llapi_layout_flags_get(layout, &flr_state);
7595         if (rc < 0) {
7596                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
7597                         progname, fname, strerror(errno));
7598                 rc = -errno;
7599                 goto free_layout;
7600         }
7601
7602         flr_state &= LCM_FL_FLR_MASK;
7603         switch (flr_state) {
7604         case LCM_FL_NONE:
7605                 rc = -EINVAL;
7606                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
7607                         progname, fname, llapi_layout_flags_string(flr_state));
7608                 goto free_layout;
7609         default:
7610                 break;
7611         }
7612
7613         rc2 = 0;
7614         for (i = 0; i < ids_nr; i++) {
7615                 mirror_id_cbdata.mirror_id = mirror_ids[i];
7616                 mirror_id_cbdata.is_valid_id = false;
7617
7618                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
7619                                                &mirror_id_cbdata);
7620                 if (rc < 0) {
7621                         rc = -errno;
7622                         fprintf(stderr,
7623                                 "%s: '%s' failed to verify mirror id: %u.\n",
7624                                 progname, fname, mirror_ids[i]);
7625                         goto free_layout;
7626                 }
7627
7628                 if (!mirror_id_cbdata.is_valid_id) {
7629                         rc2 = -EINVAL;
7630                         fprintf(stderr,
7631                                 "%s: '%s' invalid specified mirror id: %u.\n",
7632                                 progname, fname, mirror_ids[i]);
7633                 }
7634         }
7635         rc = rc2;
7636
7637 free_layout:
7638         llapi_layout_free(layout);
7639         llapi_lease_release(fd);
7640 close_fd:
7641         close(fd);
7642 error:
7643         return rc;
7644 }
7645
7646 static inline
7647 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
7648                            __u16 *mirror_ids, int ids_nr)
7649 {
7650         struct llapi_resync_comp comp_array[1024] = { { 0 } };
7651         struct llapi_layout *layout;
7652         struct stat stbuf;
7653         uint32_t flr_state;
7654         int comp_size = 0;
7655         int idx;
7656         int fd;
7657         int rc;
7658
7659         if (stat(fname, &stbuf) < 0) {
7660                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
7661                         progname, fname, strerror(errno));
7662                 rc = -errno;
7663                 goto error;
7664         }
7665         if (!S_ISREG(stbuf.st_mode)) {
7666                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
7667                         progname, fname);
7668                 rc = -EINVAL;
7669                 goto error;
7670         }
7671
7672         fd = open(fname, O_DIRECT | O_RDWR);
7673         if (fd < 0) {
7674                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
7675                         progname, fname, strerror(errno));
7676                 rc = -errno;
7677                 goto error;
7678         }
7679
7680         layout = llapi_layout_get_by_fd(fd, 0);
7681         if (layout == NULL) {
7682                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
7683                         progname, fname, strerror(errno));
7684                 rc = -errno;
7685                 goto close_fd;
7686         }
7687
7688         rc = llapi_layout_flags_get(layout, &flr_state);
7689         if (rc) {
7690                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
7691                         progname, fname, strerror(errno));
7692                 rc = -errno;
7693                 goto free_layout;
7694         }
7695
7696         flr_state &= LCM_FL_FLR_MASK;
7697         if (flr_state == LCM_FL_NONE) {
7698                 rc = -EINVAL;
7699                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
7700                         progname, fname);
7701                 goto free_layout;
7702         }
7703
7704         /* get stale component info */
7705         comp_size = llapi_mirror_find_stale(layout, comp_array,
7706                                             ARRAY_SIZE(comp_array),
7707                                             mirror_ids, ids_nr);
7708         if (comp_size <= 0) {
7709                 rc = comp_size;
7710                 goto free_layout;
7711         }
7712
7713         ioc->lil_mode = LL_LEASE_WRLCK;
7714         ioc->lil_flags = LL_LEASE_RESYNC;
7715         rc = llapi_lease_set(fd, ioc);
7716         if (rc < 0) {
7717                 if (rc == -EALREADY)
7718                         rc = 0;
7719                 else
7720                         fprintf(stderr,
7721                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
7722                                 progname, fname, strerror(errno));
7723                 goto free_layout;
7724         }
7725
7726         idx = 0;
7727         while (idx < comp_size) {
7728                 ssize_t result;
7729                 uint64_t end;
7730                 __u16 mirror_id;
7731                 int i;
7732
7733                 rc = llapi_lease_check(fd);
7734                 if (rc != LL_LEASE_WRLCK) {
7735                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
7736                                 progname, fname);
7737                         goto free_layout;
7738                 }
7739
7740                 mirror_id = comp_array[idx].lrc_mirror_id;
7741                 end = comp_array[idx].lrc_end;
7742
7743                 /* try to combine adjacent component */
7744                 for (i = idx + 1; i < comp_size; i++) {
7745                         if (mirror_id != comp_array[i].lrc_mirror_id ||
7746                             end != comp_array[i].lrc_start)
7747                                 break;
7748                         end = comp_array[i].lrc_end;
7749                 }
7750
7751                 result = llapi_mirror_resync_one(fd, layout, mirror_id,
7752                                                  comp_array[idx].lrc_start,
7753                                                  end);
7754                 if (result < 0) {
7755                         fprintf(stderr, "%s: '%s' llapi_mirror_resync_one: "
7756                                 "%ld.\n", progname, fname, result);
7757                         rc = result;
7758                         goto unlock;
7759                 } else if (result > 0) {
7760                         int j;
7761
7762                         /* mark synced components */
7763                         for (j = idx; j < i; j++)
7764                                 comp_array[j].lrc_synced = true;
7765                 }
7766
7767                 idx = i;
7768         }
7769
7770 unlock:
7771         /* prepare ioc for lease put */
7772         ioc->lil_mode = LL_LEASE_UNLCK;
7773         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
7774         ioc->lil_count = 0;
7775         for (idx = 0; idx < comp_size; idx++) {
7776                 if (comp_array[idx].lrc_synced) {
7777                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
7778                         ioc->lil_count++;
7779                 }
7780         }
7781
7782         rc = llapi_lease_set(fd, ioc);
7783         if (rc <= 0) {
7784                 if (rc == 0) /* lost lease lock */
7785                         rc = -EBUSY;
7786                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
7787                         progname, fname, strerror(errno));
7788                 goto free_layout;
7789         }
7790         /**
7791          * llapi_lease_set returns lease mode when it request to unlock
7792          * the lease lock
7793          */
7794         rc = 0;
7795
7796 free_layout:
7797         llapi_layout_free(layout);
7798 close_fd:
7799         close(fd);
7800 error:
7801         return rc;
7802 }
7803
7804 static inline int lfs_mirror_resync(int argc, char **argv)
7805 {
7806         struct ll_ioc_lease *ioc = NULL;
7807         __u16 mirror_ids[128] = { 0 };
7808         int ids_nr = 0;
7809         int c;
7810         int rc = 0;
7811
7812         struct option long_opts[] = {
7813         { .val = 'o',   .name = "only",         .has_arg = required_argument },
7814         { .name = NULL } };
7815
7816         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
7817                 switch (c) {
7818                 case 'o':
7819                         rc = parse_mirror_ids(mirror_ids,
7820                                         sizeof(mirror_ids) / sizeof(__u16),
7821                                         optarg);
7822                         if (rc < 0) {
7823                                 fprintf(stderr,
7824                                         "%s: bad mirror ids '%s'.\n",
7825                                         argv[0], optarg);
7826                                 goto error;
7827                         }
7828                         ids_nr = rc;
7829                         break;
7830                 default:
7831                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
7832                                 argv[0], argv[optind - 1]);
7833                         rc = -EINVAL;
7834                         goto error;
7835                 }
7836         }
7837
7838         if (argc == optind) {
7839                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
7840                 rc = CMD_HELP;
7841                 goto error;
7842         }
7843
7844         if (ids_nr > 0 && argc > optind + 1) {
7845                 fprintf(stderr,
7846                     "%s: option '--only' cannot be used upon multiple files.\n",
7847                         argv[0]);
7848                 rc = CMD_HELP;
7849                 goto error;
7850
7851         }
7852
7853         if (ids_nr > 0) {
7854                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
7855                 if (rc < 0)
7856                         goto error;
7857         }
7858
7859         /* set the lease on the file */
7860         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
7861         if (ioc == NULL) {
7862                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
7863                         argv[0], strerror(errno));
7864                 rc = -errno;
7865                 goto error;
7866         }
7867
7868         for (; optind < argc; optind++) {
7869                 rc = lfs_mirror_resync_file(argv[optind], ioc,
7870                                             mirror_ids, ids_nr);
7871                 /* ignore previous file's error, continue with next file */
7872
7873                 /* reset ioc */
7874                 memset(ioc, 0, sizeof(__u32) * 4096);
7875         }
7876
7877         free(ioc);
7878 error:
7879         return rc;
7880 }
7881
7882 /**
7883  * struct verify_chunk - Mirror chunk to be verified.
7884  * @chunk:        [start, end) of the chunk.
7885  * @mirror_count: Number of mirror ids in @mirror_id array.
7886  * @mirror_id:    Array of valid mirror ids that cover the chunk.
7887  */
7888 struct verify_chunk {
7889         struct lu_extent chunk;
7890         unsigned int mirror_count;
7891         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
7892 };
7893
7894 /**
7895  * print_chunks() - Print chunk information.
7896  * @fname:       Mirrored file name.
7897  * @chunks:      Array of chunks.
7898  * @chunk_count: Number of chunks in @chunks array.
7899  *
7900  * This function prints [start, end) of each chunk in @chunks
7901  * for mirrored file @fname, and also prints the valid mirror ids
7902  * that cover the chunk.
7903  *
7904  * Return: void.
7905  */
7906 static inline
7907 void print_chunks(const char *fname, struct verify_chunk *chunks,
7908                   int chunk_count)
7909 {
7910         int i;
7911         int j;
7912
7913         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
7914         for (i = 0; i < chunk_count; i++) {
7915                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
7916
7917                 if (chunks[i].mirror_count == 0)
7918                         fprintf(stdout, "\t[");
7919                 else {
7920                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
7921                         for (j = 1; j < chunks[i].mirror_count; j++)
7922                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
7923                 }
7924                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
7925         }
7926         fprintf(stdout, "\n");
7927 }
7928
7929 /**
7930  * print_checksums() - Print CRC-32 checksum values.
7931  * @chunk: A chunk and its corresponding valid mirror ids.
7932  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
7933  *
7934  * This function prints CRC-32 checksum values on @chunk for
7935  * each valid mirror that covers it.
7936  *
7937  * Return: void.
7938  */
7939 static inline
7940 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
7941 {
7942         int i;
7943
7944         fprintf(stdout,
7945                 "CRC-32 checksum value for chunk "DEXT":\n",
7946                 PEXT(&chunk->chunk));
7947         for (i = 0; i < chunk->mirror_count; i++)
7948                 fprintf(stdout, "Mirror %u:\t%#lx\n",
7949                         chunk->mirror_id[i], crc[i]);
7950         fprintf(stdout, "\n");
7951 }
7952
7953 /**
7954  * filter_mirror_id() - Filter specified mirror ids.
7955  * @chunks:      Array of chunks.
7956  * @chunk_count: Number of chunks in @chunks array.
7957  * @mirror_ids:  Specified mirror ids to be verified.
7958  * @ids_nr:      Number of specified mirror ids.
7959  *
7960  * This function scans valid mirror ids that cover each chunk in @chunks
7961  * and filters specified mirror ids.
7962  *
7963  * Return: void.
7964  */
7965 static inline
7966 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
7967                       __u16 *mirror_ids, int ids_nr)
7968 {
7969         int i;
7970         int j;
7971         int k;
7972         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
7973         unsigned int valid_count = 0;
7974
7975         for (i = 0; i < chunk_count; i++) {
7976                 if (chunks[i].mirror_count == 0)
7977                         continue;
7978
7979                 valid_count = 0;
7980                 for (j = 0; j < ids_nr; j++) {
7981                         for (k = 0; k < chunks[i].mirror_count; k++) {
7982                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
7983                                         valid_id[valid_count] = mirror_ids[j];
7984                                         valid_count++;
7985                                         break;
7986                                 }
7987                         }
7988                 }
7989
7990                 memcpy(chunks[i].mirror_id, valid_id,
7991                        sizeof(__u16) * valid_count);
7992                 chunks[i].mirror_count = valid_count;
7993         }
7994 }
7995
7996 /**
7997  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
7998  * @layout:      Mirror component list.
7999  * @chunks:      Array of chunks.
8000  * @chunks_size: Array size of @chunks.
8001  *
8002  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
8003  * to find out chunk segments and store them in @chunks array.
8004  *
8005  * The @mirror_id array in each element of @chunks will store the valid
8006  * mirror ids that cover the chunk. If a mirror component covering the
8007  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
8008  * will not be stored into the @mirror_id array, and the chunk for that
8009  * mirror will not be verified.
8010  *
8011  * The @mirror_count in each element of @chunks will store the number of
8012  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
8013  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
8014  * indicates the chunk is valid in only one mirror. In both cases, the
8015  * chunk will not be verified.
8016  *
8017  * Here is an example:
8018  *
8019  *  0      1M     2M     3M     4M           EOF
8020  *  +------+-------------+--------------------+
8021  *  |      |             |      S             |       mirror1
8022  *  +------+------+------+------+-------------+
8023  *  |             |   S  |   S  |             |       mirror2
8024  *  +-------------+------+------+-------------+
8025  *
8026  * prepared @chunks array will contain 5 elements:
8027  * (([0, 1M), [1, 2], 2),
8028  *  ([1M, 2M), [1, 2], 2),
8029  *  ([2M, 3M), [1], 1),
8030  *  ([3M, 4M], [], 0),
8031  *  ([4M, EOF), [2], 1))
8032  *
8033  * Return: the actual array size of @chunks on success
8034  *         or a negative error code on failure.
8035  */
8036 static inline
8037 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
8038                              struct verify_chunk *chunks,
8039                              size_t chunks_size)
8040 {
8041         uint64_t start;
8042         uint64_t end;
8043         uint32_t mirror_id;
8044         uint32_t flags;
8045         int idx = 0;
8046         int i = 0;
8047         int rc = 0;
8048
8049         memset(chunks, 0, sizeof(*chunks) * chunks_size);
8050
8051         while (1) {
8052                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
8053                 if (rc < 0) {
8054                         fprintf(stderr,
8055                                 "%s: move to the first layout component: %s.\n",
8056                                 progname, strerror(errno));
8057                         goto error;
8058                 }
8059
8060                 i = 0;
8061                 rc = 0;
8062                 chunks[idx].chunk.e_end = LUSTRE_EOF;
8063                 while (rc == 0) {
8064                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
8065                         if (rc < 0) {
8066                                 fprintf(stderr,
8067                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
8068                                         progname, strerror(errno));
8069                                 goto error;
8070                         }
8071
8072                         if (start > chunks[idx].chunk.e_start ||
8073                             end <= chunks[idx].chunk.e_start)
8074                                 goto next;
8075
8076                         if (end < chunks[idx].chunk.e_end)
8077                                 chunks[idx].chunk.e_end = end;
8078
8079                         rc = llapi_layout_comp_flags_get(layout, &flags);
8080                         if (rc < 0) {
8081                                 fprintf(stderr,
8082                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
8083                                         progname, strerror(errno));
8084                                 goto error;
8085                         }
8086
8087                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
8088                                 goto next;
8089
8090                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
8091                         if (rc < 0) {
8092                                 fprintf(stderr,
8093                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
8094                                         progname, strerror(errno));
8095                                 goto error;
8096                         }
8097
8098                         chunks[idx].mirror_id[i] = mirror_id;
8099                         i++;
8100                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
8101                                 fprintf(stderr,
8102                                         "%s: mirror_id array is too small.\n",
8103                                         progname);
8104                                 rc = -EINVAL;
8105                                 goto error;
8106                         }
8107
8108                 next:
8109                         rc = llapi_layout_comp_use(layout,
8110                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
8111                         if (rc < 0) {
8112                                 fprintf(stderr,
8113                                         "%s: move to the next layout component: %s.\n",
8114                                         progname, strerror(errno));
8115                                 goto error;
8116                         }
8117                 } /* loop through all components */
8118
8119                 chunks[idx].mirror_count = i;
8120
8121                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
8122                         break;
8123
8124                 idx++;
8125                 if (idx >= chunks_size) {
8126                         fprintf(stderr, "%s: chunks array is too small.\n",
8127                                 progname);
8128                         rc = -EINVAL;
8129                         goto error;
8130                 }
8131
8132                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
8133         }
8134
8135 error:
8136         return rc < 0 ? rc : idx + 1;
8137 }
8138
8139 /**
8140  * lfs_mirror_verify_chunk() - Verify a chunk.
8141  * @fd:        File descriptor of the mirrored file.
8142  * @file_size: Size of the mirrored file.
8143  * @chunk:     A chunk and its corresponding valid mirror ids.
8144  * @verbose:   Verbose mode.
8145  *
8146  * This function verifies a @chunk contains exactly the same data
8147  * ammong the mirrors that cover it.
8148  *
8149  * If @verbose is specified, then the function will print where the
8150  * differences are if the data do not match. Otherwise, it will
8151  * just return an error in that case.
8152  *
8153  * Return: 0 on success or a negative error code on failure.
8154  */
8155 static inline
8156 int lfs_mirror_verify_chunk(int fd, size_t file_size,
8157                             struct verify_chunk *chunk, int verbose)
8158 {
8159         const size_t buflen = 4 * 1024 * 1024; /* 4M */
8160         void *buf;
8161         size_t page_size = sysconf(_SC_PAGESIZE);
8162         ssize_t bytes_read;
8163         ssize_t bytes_done;
8164         size_t count;
8165         off_t pos;
8166         unsigned long crc;
8167         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
8168         int i;
8169         int rc = 0;
8170
8171         if (file_size == 0)
8172                 return 0;
8173
8174         rc = posix_memalign(&buf, page_size, buflen);
8175         if (rc) /* error code is returned directly */
8176                 return -rc;
8177
8178         if (verbose > 1) {
8179                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
8180                         PEXT(&chunk->chunk));
8181                 for (i = 0; i < chunk->mirror_count; i++)
8182                         fprintf(stdout, " %u", chunk->mirror_id[i]);
8183                 fprintf(stdout, "\n");
8184         }
8185
8186         bytes_done = 0;
8187         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
8188         pos = chunk->chunk.e_start;
8189         while (bytes_done < count) {
8190                 /* compute initial CRC-32 checksum */
8191                 crc = crc32(0L, Z_NULL, 0);
8192                 memset(crc_array, 0, sizeof(crc_array));
8193
8194                 bytes_read = 0;
8195                 for (i = 0; i < chunk->mirror_count; i++) {
8196                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
8197                                                        buf, buflen, pos);
8198                         if (bytes_read < 0) {
8199                                 rc = bytes_read;
8200                                 fprintf(stderr,
8201                                         "%s: failed to read data from mirror %u: %s.\n",
8202                                         progname, chunk->mirror_id[i],
8203                                         strerror(-rc));
8204                                 goto error;
8205                         }
8206
8207                         /* compute new CRC-32 checksum */
8208                         crc_array[i] = crc32(crc, buf, bytes_read);
8209                 }
8210
8211                 if (verbose)
8212                         print_checksums(chunk, crc_array);
8213
8214                 /* compare CRC-32 checksum values */
8215                 for (i = 1; i < chunk->mirror_count; i++) {
8216                         if (crc_array[i] != crc_array[0]) {
8217                                 rc = -EINVAL;
8218                                 if (!verbose)
8219                                         goto error;
8220
8221                                 fprintf(stderr,
8222                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
8223                                         progname, PEXT(&chunk->chunk),
8224                                         chunk->mirror_id[0],
8225                                         chunk->mirror_id[i]);
8226                         }
8227                 }
8228
8229                 pos += bytes_read;
8230                 bytes_done += bytes_read;
8231         }
8232
8233         if (verbose > 1 && rc == 0) {
8234                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
8235                         PEXT(&chunk->chunk));
8236                 for (i = 0; i < chunk->mirror_count; i++)
8237                         fprintf(stdout, " %u", chunk->mirror_id[i]);
8238                 fprintf(stdout, " PASS\n\n");
8239         }
8240
8241 error:
8242         free(buf);
8243         return rc;
8244 }
8245
8246 /**
8247  * lfs_mirror_verify_file() - Verify a mirrored file.
8248  * @fname:      Mirrored file name.
8249  * @mirror_ids: Specified mirror ids to be verified.
8250  * @ids_nr:     Number of specified mirror ids.
8251  * @verbose:    Verbose mode.
8252  *
8253  * This function verifies that each SYNC mirror of a mirrored file
8254  * specified by @fname contains exactly the same data.
8255  *
8256  * If @mirror_ids is specified, then the function will verify the
8257  * mirrors specified by @mirror_ids contain exactly the same data.
8258  *
8259  * If @verbose is specified, then the function will print where the
8260  * differences are if the data do not match. Otherwise, it will
8261  * just return an error in that case.
8262  *
8263  * Return: 0 on success or a negative error code on failure.
8264  */
8265 static inline
8266 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
8267                            int verbose)
8268 {
8269         struct verify_chunk chunks_array[1024] = { };
8270         struct llapi_layout *layout = NULL;
8271         struct stat stbuf;
8272         uint32_t flr_state;
8273         int fd;
8274         int chunk_count = 0;
8275         int idx = 0;
8276         int rc = 0;
8277         int rc1 = 0;
8278         int rc2 = 0;
8279
8280         if (stat(fname, &stbuf) < 0) {
8281                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8282                         progname, fname, strerror(errno));
8283                 rc = -errno;
8284                 goto error;
8285         }
8286
8287         if (!S_ISREG(stbuf.st_mode)) {
8288                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8289                         progname, fname);
8290                 rc = -EINVAL;
8291                 goto error;
8292         }
8293
8294         if (stbuf.st_size == 0) {
8295                 if (verbose)
8296                         fprintf(stdout, "%s: '%s' file size is 0.\n",
8297                                 progname, fname);
8298                 rc = 0;
8299                 goto error;
8300         }
8301
8302         fd = open(fname, O_DIRECT | O_RDONLY);
8303         if (fd < 0) {
8304                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8305                         progname, fname, strerror(errno));
8306                 rc = -errno;
8307                 goto error;
8308         }
8309
8310         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
8311         if (rc < 0) {
8312                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
8313                         progname, fname, strerror(errno));
8314                 goto close_fd;
8315         }
8316
8317         layout = llapi_layout_get_by_fd(fd, 0);
8318         if (layout == NULL) {
8319                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8320                         progname, fname, strerror(errno));
8321                 rc = -errno;
8322                 llapi_lease_release(fd);
8323                 goto close_fd;
8324         }
8325
8326         rc = llapi_layout_flags_get(layout, &flr_state);
8327         if (rc < 0) {
8328                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8329                         progname, fname, strerror(errno));
8330                 rc = -errno;
8331                 goto free_layout;
8332         }
8333
8334         flr_state &= LCM_FL_FLR_MASK;
8335         switch (flr_state) {
8336         case LCM_FL_NONE:
8337                 rc = -EINVAL;
8338                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
8339                         progname, fname, llapi_layout_flags_string(flr_state));
8340                 goto free_layout;
8341         default:
8342                 break;
8343         }
8344
8345         /* find out mirror chunks to be verified */
8346         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
8347                                                ARRAY_SIZE(chunks_array));
8348         if (chunk_count < 0) {
8349                 rc = chunk_count;
8350                 goto free_layout;
8351         }
8352
8353         if (ids_nr > 0)
8354                 /* filter specified mirror ids */
8355                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
8356
8357         if (verbose > 2)
8358                 print_chunks(fname, chunks_array, chunk_count);
8359
8360         for (idx = 0; idx < chunk_count; idx++) {
8361                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
8362                         if (verbose)
8363                                 fprintf(stdout,
8364                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
8365                                         progname, fname,
8366                                         PEXT(&chunks_array[idx].chunk),
8367                                         (unsigned long long)stbuf.st_size);
8368                         break;
8369                 }
8370
8371                 if (chunks_array[idx].mirror_count == 0) {
8372                         fprintf(stderr,
8373                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
8374                                 progname, fname,
8375                                 PEXT(&chunks_array[idx].chunk));
8376                         if (verbose) {
8377                                 fprintf(stderr, "skipped\n");
8378                                 continue;
8379                         }
8380                         rc = -EINVAL;
8381                         fprintf(stderr, "failed\n");
8382                         goto free_layout;
8383                 }
8384
8385                 if (chunks_array[idx].mirror_count == 1) {
8386                         if (verbose)
8387                                 fprintf(stdout,
8388                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
8389                                         progname, fname,
8390                                         PEXT(&chunks_array[idx].chunk),
8391                                         chunks_array[idx].mirror_id[0]);
8392                         continue;
8393                 }
8394
8395                 rc = llapi_lease_check(fd);
8396                 if (rc != LL_LEASE_RDLCK) {
8397                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
8398                                 progname, fname);
8399                         goto free_layout;
8400                 }
8401
8402                 /* verify one chunk */
8403                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
8404                                               &chunks_array[idx], verbose);
8405                 if (rc1 < 0) {
8406                         rc2 = rc1;
8407                         if (!verbose) {
8408                                 rc = rc1;
8409                                 goto free_layout;
8410                         }
8411                 }
8412         }
8413
8414         if (rc2 < 0)
8415                 rc = rc2;
8416
8417 free_layout:
8418         llapi_layout_free(layout);
8419         llapi_lease_release(fd);
8420 close_fd:
8421         close(fd);
8422 error:
8423         return rc;
8424 }
8425
8426 /**
8427  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
8428  * @argc: The count of lfs mirror verify command line arguments.
8429  * @argv: Array of strings for lfs mirror verify command line arguments.
8430  *
8431  * This function parses lfs mirror verify command and verifies the
8432  * specified mirrored file(s).
8433  *
8434  * Return: 0 on success or a negative error code on failure.
8435  */
8436 static inline int lfs_mirror_verify(int argc, char **argv)
8437 {
8438         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
8439         int ids_nr = 0;
8440         int c;
8441         int verbose = 0;
8442         int rc = 0;
8443         int rc1 = 0;
8444         char cmd[PATH_MAX];
8445
8446         struct option long_opts[] = {
8447         { .val = 'o',   .name = "only",         .has_arg = required_argument },
8448         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
8449         { .name = NULL } };
8450
8451         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
8452         progname = cmd;
8453         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
8454                 switch (c) {
8455                 case 'o':
8456                         rc = parse_mirror_ids(mirror_ids,
8457                                               ARRAY_SIZE(mirror_ids),
8458                                               optarg);
8459                         if (rc < 0) {
8460                                 fprintf(stderr,
8461                                         "%s: bad mirror ids '%s'.\n",
8462                                         progname, optarg);
8463                                 goto error;
8464                         }
8465                         ids_nr = rc;
8466                         if (ids_nr < 2) {
8467                                 fprintf(stderr,
8468                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
8469                                         progname);
8470                                 rc = CMD_HELP;
8471                                 goto error;
8472                         }
8473                         break;
8474                 case 'v':
8475                         verbose++;
8476                         break;
8477                 default:
8478                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
8479                                 progname, argv[optind - 1]);
8480                         rc = -EINVAL;
8481                         goto error;
8482                 }
8483         }
8484
8485         if (argc == optind) {
8486                 fprintf(stderr, "%s: no file name given.\n", progname);
8487                 rc = CMD_HELP;
8488                 goto error;
8489         }
8490
8491         if (ids_nr > 0 && argc > optind + 1) {
8492                 fprintf(stderr,
8493                         "%s: '--only' cannot be used upon multiple files.\n",
8494                         progname);
8495                 rc = CMD_HELP;
8496                 goto error;
8497
8498         }
8499
8500         if (ids_nr > 0) {
8501                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
8502                 if (rc < 0)
8503                         goto error;
8504         }
8505
8506         rc = 0;
8507         for (; optind < argc; optind++) {
8508                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
8509                                              verbose);
8510                 if (rc1 < 0)
8511                         rc = rc1;
8512         }
8513 error:
8514         return rc;
8515 }
8516
8517 /**
8518  * lfs_mirror() - Parse and execute lfs mirror commands.
8519  * @argc: The count of lfs mirror command line arguments.
8520  * @argv: Array of strings for lfs mirror command line arguments.
8521  *
8522  * This function parses lfs mirror commands and performs the
8523  * corresponding functions specified in mirror_cmdlist[].
8524  *
8525  * Return: 0 on success or an error code on failure.
8526  */
8527 static int lfs_mirror(int argc, char **argv)
8528 {
8529         char cmd[PATH_MAX];
8530         int rc = 0;
8531
8532         setlinebuf(stdout);
8533
8534         Parser_init("lfs-mirror > ", mirror_cmdlist);
8535
8536         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
8537         progname = cmd;
8538         program_invocation_short_name = cmd;
8539         if (argc > 1)
8540                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
8541         else
8542                 rc = Parser_commands();
8543
8544         return rc < 0 ? -rc : rc;
8545 }
8546
8547 /**
8548  * lfs_mirror_list_commands() - List lfs mirror commands.
8549  * @argc: The count of command line arguments.
8550  * @argv: Array of strings for command line arguments.
8551  *
8552  * This function lists lfs mirror commands defined in mirror_cmdlist[].
8553  *
8554  * Return: 0 on success.
8555  */
8556 static int lfs_mirror_list_commands(int argc, char **argv)
8557 {
8558         char buffer[81] = "";
8559
8560         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
8561                              NULL, 0, 4);
8562
8563         return 0;
8564 }
8565
8566 static int lfs_list_commands(int argc, char **argv)
8567 {
8568         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
8569
8570         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
8571
8572         return 0;
8573 }
8574
8575 int main(int argc, char **argv)
8576 {
8577         int rc;
8578
8579         /* Ensure that liblustreapi constructor has run */
8580         if (!llapi_liblustreapi_initialized())
8581                 fprintf(stderr, "liblustreapi was not properly initialized\n");
8582
8583         setlinebuf(stdout);
8584         opterr = 0;
8585
8586         Parser_init("lfs > ", cmdlist);
8587
8588         progname = program_invocation_short_name; /* Used in error messages */
8589         if (argc > 1) {
8590                 llapi_set_command_name(argv[1]);
8591                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
8592                 llapi_clear_command_name();
8593         } else {
8594                 rc = Parser_commands();
8595         }
8596
8597         return rc < 0 ? -rc : rc;
8598 }
8599
8600 #ifdef _LUSTRE_IDL_H_
8601 /* Everything we need here should be included by lustreapi.h. */
8602 # error "lfs should not depend on lustre_idl.h"
8603 #endif /* _LUSTRE_IDL_H_ */