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]\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, 0644,
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                                                       0644, 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                                                        0644, 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
3239         if (str[0] == '+')
3240                 res = 1;
3241         else if (str[0] == '-')
3242                 res = -1;
3243
3244         if (res)
3245                 str++;
3246
3247         t = strtol(str, NULL, 0);
3248         if (*time < t * 24 * 60 * 60) {
3249                 if (res)
3250                         str--;
3251                 fprintf(stderr, "Wrong time '%s' is specified.\n", str);
3252                 return INT_MAX;
3253         }
3254
3255         *set = *time - t * 24 * 60 * 60;
3256         return res;
3257 }
3258 static int name2uid(unsigned int *id, const char *name)
3259 {
3260         struct passwd *passwd;
3261
3262         passwd = getpwnam(name);
3263         if (passwd == NULL)
3264                 return -ENOENT;
3265         *id = passwd->pw_uid;
3266
3267         return 0;
3268 }
3269
3270 static int name2gid(unsigned int *id, const char *name)
3271 {
3272         struct group *group;
3273
3274         group = getgrnam(name);
3275         if (group == NULL)
3276                 return -ENOENT;
3277         *id = group->gr_gid;
3278
3279         return 0;
3280 }
3281
3282 static inline int name2projid(unsigned int *id, const char *name)
3283 {
3284         return -ENOTSUP;
3285 }
3286
3287 static int uid2name(char **name, unsigned int id)
3288 {
3289         struct passwd *passwd;
3290
3291         passwd = getpwuid(id);
3292         if (passwd == NULL)
3293                 return -ENOENT;
3294         *name = passwd->pw_name;
3295
3296         return 0;
3297 }
3298
3299 static inline int gid2name(char **name, unsigned int id)
3300 {
3301         struct group *group;
3302
3303         group = getgrgid(id);
3304         if (group == NULL)
3305                 return -ENOENT;
3306         *name = group->gr_name;
3307
3308         return 0;
3309 }
3310
3311 static int name2layout(__u32 *layout, char *name)
3312 {
3313         char *ptr, *layout_name;
3314
3315         *layout = 0;
3316         for (ptr = name; ; ptr = NULL) {
3317                 layout_name = strtok(ptr, ",");
3318                 if (layout_name == NULL)
3319                         break;
3320                 if (strcmp(layout_name, "released") == 0)
3321                         *layout |= LOV_PATTERN_F_RELEASED;
3322                 else if (strcmp(layout_name, "raid0") == 0)
3323                         *layout |= LOV_PATTERN_RAID0;
3324                 else if (strcmp(layout_name, "mdt") == 0)
3325                         *layout |= LOV_PATTERN_MDT;
3326                 else
3327                         return -1;
3328         }
3329         return 0;
3330 }
3331
3332 static int lfs_find(int argc, char **argv)
3333 {
3334         int c, rc;
3335         int ret = 0;
3336         time_t t;
3337         struct find_param param = {
3338                 .fp_max_depth = -1,
3339                 .fp_quiet = 1,
3340         };
3341         struct option long_opts[] = {
3342         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
3343         { .val = LFS_COMP_COUNT_OPT,
3344                         .name = "comp-count",   .has_arg = required_argument },
3345         { .val = LFS_COMP_COUNT_OPT,
3346                         .name = "component-count",
3347                                                 .has_arg = required_argument },
3348         { .val = LFS_COMP_FLAGS_OPT,
3349                         .name = "comp-flags",   .has_arg = required_argument },
3350         { .val = LFS_COMP_FLAGS_OPT,
3351                         .name = "component-flags",
3352                                                 .has_arg = required_argument },
3353         { .val = LFS_COMP_START_OPT,
3354                         .name = "comp-start",   .has_arg = required_argument },
3355         { .val = LFS_COMP_START_OPT,
3356                         .name = "component-start",
3357                                                 .has_arg = required_argument },
3358         { .val = LFS_MIRROR_STATE_OPT,
3359                         .name = "mirror-state", .has_arg = required_argument },
3360         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
3361         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
3362         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
3363 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
3364         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
3365         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
3366         { .val = 'E',   .name = "component-end",
3367                                                 .has_arg = required_argument },
3368 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3369         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
3370         { .val = 'G',   .name = "group",        .has_arg = required_argument },
3371         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
3372         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
3373         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
3374 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
3375         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3376         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
3377         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
3378         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
3379         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
3380         { .val = 'n',   .name = "name",         .has_arg = required_argument },
3381         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
3382 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
3383         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
3384         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
3385         /* no short option for pool yet, can be 'p' after 2.18 */
3386         { .val = LFS_POOL_OPT,
3387                         .name = "pool",         .has_arg = required_argument },
3388         { .val = '0',   .name = "print0",       .has_arg = no_argument },
3389         { .val = 'P',   .name = "print",        .has_arg = no_argument },
3390         { .val = LFS_PROJID_OPT,
3391                         .name = "projid",       .has_arg = required_argument },
3392 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3393 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3394 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3395         { .val = 's',   .name = "size",         .has_arg = required_argument },
3396         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3397         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3398         { .val = 't',   .name = "type",         .has_arg = required_argument },
3399         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
3400         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
3401         { .val = 'U',   .name = "user",         .has_arg = required_argument },
3402 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
3403 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
3404         { .name = NULL } };
3405         int pathstart = -1;
3406         int pathend = -1;
3407         int neg_opt = 0;
3408         time_t *xtime;
3409         int *xsign;
3410         int isoption;
3411         char *endptr;
3412
3413         time(&t);
3414
3415         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
3416         while ((c = getopt_long_only(argc, argv,
3417                         "-0A:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:v",
3418                         long_opts, NULL)) >= 0) {
3419                 xtime = NULL;
3420                 xsign = NULL;
3421                 if (neg_opt)
3422                         --neg_opt;
3423                 /* '!' is part of option */
3424                 /* when getopt_long_only() finds a string which is not
3425                  * an option nor a known option argument it returns 1
3426                  * in that case if we already have found pathstart and pathend
3427                  * (i.e. we have the list of pathnames),
3428                  * the only supported value is "!"
3429                  */
3430                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
3431                 if (!isoption && pathend != -1) {
3432                         fprintf(stderr, "err: %s: filename|dirname must either "
3433                                         "precede options or follow options\n",
3434                                         argv[0]);
3435                         ret = CMD_HELP;
3436                         goto err;
3437                 }
3438                 if (!isoption && pathstart == -1)
3439                         pathstart = optind - 1;
3440                 if (isoption && pathstart != -1 && pathend == -1)
3441                         pathend = optind - 2;
3442                 switch (c) {
3443                 case 0:
3444                         /* Long options. */
3445                         break;
3446                 case 1:
3447                         /* unknown; opt is "!" or path component,
3448                          * checking done above.
3449                          */
3450                         if (strcmp(optarg, "!") == 0)
3451                                 neg_opt = 2;
3452                         break;
3453                 case 'A':
3454                         xtime = &param.fp_atime;
3455                         xsign = &param.fp_asign;
3456                         param.fp_exclude_atime = !!neg_opt;
3457                         /* no break, this falls through to 'C' for ctime */
3458                 case 'C':
3459                         if (c == 'C') {
3460                                 xtime = &param.fp_ctime;
3461                                 xsign = &param.fp_csign;
3462                                 param.fp_exclude_ctime = !!neg_opt;
3463                         }
3464                         /* no break, this falls through to 'M' for mtime */
3465                 case 'M':
3466                         if (c == 'M') {
3467                                 xtime = &param.fp_mtime;
3468                                 xsign = &param.fp_msign;
3469                                 param.fp_exclude_mtime = !!neg_opt;
3470                         }
3471                         rc = set_time(&t, xtime, optarg);
3472                         if (rc == INT_MAX) {
3473                                 ret = -1;
3474                                 goto err;
3475                         }
3476                         if (rc)
3477                                 *xsign = rc;
3478                         break;
3479                 case LFS_COMP_COUNT_OPT:
3480                         if (optarg[0] == '+') {
3481                                 param.fp_comp_count_sign = -1;
3482                                 optarg++;
3483                         } else if (optarg[0] == '-') {
3484                                 param.fp_comp_count_sign =  1;
3485                                 optarg++;
3486                         }
3487
3488                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
3489                         if (*endptr != '\0') {
3490                                 fprintf(stderr, "error: bad component count "
3491                                         "'%s'\n", optarg);
3492                                 goto err;
3493                         }
3494                         param.fp_check_comp_count = 1;
3495                         param.fp_exclude_comp_count = !!neg_opt;
3496                         break;
3497                 case LFS_COMP_FLAGS_OPT:
3498                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
3499                                             &param.fp_comp_neg_flags);
3500                         if (rc) {
3501                                 fprintf(stderr, "error: bad component flags "
3502                                         "'%s'\n", optarg);
3503                                 goto err;
3504                         }
3505                         param.fp_check_comp_flags = 1;
3506                         if (neg_opt) {
3507                                 __u32 flags = param.fp_comp_neg_flags;
3508                                 param.fp_comp_neg_flags = param.fp_comp_flags;
3509                                 param.fp_comp_flags = flags;
3510                         }
3511                         break;
3512                 case LFS_COMP_START_OPT:
3513                         if (optarg[0] == '+') {
3514                                 param.fp_comp_start_sign = -1;
3515                                 optarg++;
3516                         } else if (optarg[0] == '-') {
3517                                 param.fp_comp_start_sign =  1;
3518                                 optarg++;
3519                         }
3520
3521                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
3522                                               &param.fp_comp_start_units, 0);
3523                         if (rc) {
3524                                 fprintf(stderr, "error: bad component start "
3525                                         "'%s'\n", optarg);
3526                                 goto err;
3527                         }
3528                         param.fp_check_comp_start = 1;
3529                         param.fp_exclude_comp_start = !!neg_opt;
3530                         break;
3531                 case LFS_MIRROR_STATE_OPT:
3532                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
3533                                               &param.fp_mirror_neg_state);
3534                         if (rc) {
3535                                 fprintf(stderr,
3536                                         "error: bad mirrored file state '%s'\n",
3537                                         optarg);
3538                                 goto err;
3539                         }
3540                         param.fp_check_mirror_state = 1;
3541                         if (neg_opt) {
3542                                 __u16 state = param.fp_mirror_neg_state;
3543                                 param.fp_mirror_neg_state =
3544                                         param.fp_mirror_state;
3545                                 param.fp_mirror_state = state;
3546                         }
3547                         break;
3548                 case 'c':
3549                         if (optarg[0] == '+') {
3550                                 param.fp_stripe_count_sign = -1;
3551                                 optarg++;
3552                         } else if (optarg[0] == '-') {
3553                                 param.fp_stripe_count_sign =  1;
3554                                 optarg++;
3555                         }
3556
3557                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
3558                         if (*endptr != '\0') {
3559                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
3560                                         optarg);
3561                                 ret = -1;
3562                                 goto err;
3563                         }
3564                         param.fp_check_stripe_count = 1;
3565                         param.fp_exclude_stripe_count = !!neg_opt;
3566                         break;
3567                 case 'D':
3568                         param.fp_max_depth = strtol(optarg, 0, 0);
3569                         break;
3570                 case 'E':
3571                         if (optarg[0] == '+') {
3572                                 param.fp_comp_end_sign = -1;
3573                                 optarg++;
3574                         } else if (optarg[0] == '-') {
3575                                 param.fp_comp_end_sign =  1;
3576                                 optarg++;
3577                         }
3578
3579                         if (arg_is_eof(optarg)) {
3580                                 param.fp_comp_end = LUSTRE_EOF;
3581                                 param.fp_comp_end_units = 1;
3582                                 rc = 0;
3583                         } else {
3584                                 rc = llapi_parse_size(optarg,
3585                                                 &param.fp_comp_end,
3586                                                 &param.fp_comp_end_units, 0);
3587                         }
3588                         if (rc) {
3589                                 fprintf(stderr, "error: bad component end "
3590                                         "'%s'\n", optarg);
3591                                 goto err;
3592                         }
3593                         param.fp_check_comp_end = 1;
3594                         param.fp_exclude_comp_end = !!neg_opt;
3595                         break;
3596                 case 'g':
3597                 case 'G':
3598                         rc = name2gid(&param.fp_gid, optarg);
3599                         if (rc) {
3600                                 param.fp_gid = strtoul(optarg, &endptr, 10);
3601                                 if (*endptr != '\0') {
3602                                         fprintf(stderr, "Group/GID: %s cannot "
3603                                                 "be found.\n", optarg);
3604                                         ret = -1;
3605                                         goto err;
3606                                 }
3607                         }
3608                         param.fp_exclude_gid = !!neg_opt;
3609                         param.fp_check_gid = 1;
3610                         break;
3611                 case 'H':
3612                         param.fp_hash_type = check_hashtype(optarg);
3613                         if (param.fp_hash_type == 0) {
3614                                 fprintf(stderr, "error: bad hash_type '%s'\n",
3615                                         optarg);
3616                                 ret = -1;
3617                                 goto err;
3618                         }
3619                         param.fp_check_hash_type = 1;
3620                         param.fp_exclude_hash_type = !!neg_opt;
3621                         break;
3622                 case 'L':
3623                         ret = name2layout(&param.fp_layout, optarg);
3624                         if (ret)
3625                                 goto err;
3626                         param.fp_exclude_layout = !!neg_opt;
3627                         param.fp_check_layout = 1;
3628                         break;
3629                 case 'u':
3630                 case 'U':
3631                         rc = name2uid(&param.fp_uid, optarg);
3632                         if (rc) {
3633                                 param.fp_uid = strtoul(optarg, &endptr, 10);
3634                                 if (*endptr != '\0') {
3635                                         fprintf(stderr, "User/UID: %s cannot "
3636                                                 "be found.\n", optarg);
3637                                         ret = -1;
3638                                         goto err;
3639                                 }
3640                         }
3641                         param.fp_exclude_uid = !!neg_opt;
3642                         param.fp_check_uid = 1;
3643                         break;
3644                 case 'n':
3645                         param.fp_pattern = (char *)optarg;
3646                         param.fp_exclude_pattern = !!neg_opt;
3647                         break;
3648                 case 'N':
3649                         if (optarg[0] == '+') {
3650                                 param.fp_mirror_count_sign = -1;
3651                                 optarg++;
3652                         } else if (optarg[0] == '-') {
3653                                 param.fp_mirror_count_sign =  1;
3654                                 optarg++;
3655                         }
3656
3657                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
3658                         if (*endptr != '\0') {
3659                                 fprintf(stderr,
3660                                         "error: bad mirror count '%s'\n",
3661                                         optarg);
3662                                 goto err;
3663                         }
3664                         param.fp_check_mirror_count = 1;
3665                         param.fp_exclude_mirror_count = !!neg_opt;
3666                         break;
3667                 case 'm':
3668                 case 'i':
3669                 case 'O': {
3670                         char *buf, *token, *next, *p;
3671                         int len = 1;
3672                         void *tmp;
3673
3674                         buf = strdup(optarg);
3675                         if (buf == NULL) {
3676                                 ret = -ENOMEM;
3677                                 goto err;
3678                         }
3679
3680                         param.fp_exclude_obd = !!neg_opt;
3681
3682                         token = buf;
3683                         while (token && *token) {
3684                                 token = strchr(token, ',');
3685                                 if (token) {
3686                                         len++;
3687                                         token++;
3688                                 }
3689                         }
3690                         if (c == 'm') {
3691                                 param.fp_exclude_mdt = !!neg_opt;
3692                                 param.fp_num_alloc_mdts += len;
3693                                 tmp = realloc(param.fp_mdt_uuid,
3694                                               param.fp_num_alloc_mdts *
3695                                               sizeof(*param.fp_mdt_uuid));
3696                                 if (tmp == NULL) {
3697                                         ret = -ENOMEM;
3698                                         goto err_free;
3699                                 }
3700
3701                                 param.fp_mdt_uuid = tmp;
3702                         } else {
3703                                 param.fp_exclude_obd = !!neg_opt;
3704                                 param.fp_num_alloc_obds += len;
3705                                 tmp = realloc(param.fp_obd_uuid,
3706                                               param.fp_num_alloc_obds *
3707                                               sizeof(*param.fp_obd_uuid));
3708                                 if (tmp == NULL) {
3709                                         ret = -ENOMEM;
3710                                         goto err_free;
3711                                 }
3712
3713                                 param.fp_obd_uuid = tmp;
3714                         }
3715                         for (token = buf; token && *token; token = next) {
3716                                 struct obd_uuid *puuid;
3717                                 if (c == 'm') {
3718                                         puuid =
3719                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
3720                                 } else {
3721                                         puuid =
3722                                         &param.fp_obd_uuid[param.fp_num_obds++];
3723                                 }
3724                                 p = strchr(token, ',');
3725                                 next = 0;
3726                                 if (p) {
3727                                         *p = 0;
3728                                         next = p+1;
3729                                 }
3730
3731                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
3732                                         ret = -E2BIG;
3733                                         goto err_free;
3734                                 }
3735
3736                                 strncpy(puuid->uuid, token,
3737                                         sizeof(puuid->uuid));
3738                         }
3739 err_free:
3740                         if (buf)
3741                                 free(buf);
3742                         break;
3743                 }
3744 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
3745                 case 'p':
3746 #endif
3747                 case LFS_POOL_OPT:
3748                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
3749                                 fprintf(stderr,
3750                                         "Pool name %s is too long (max %d)\n",
3751                                         optarg, LOV_MAXPOOLNAME);
3752                                 ret = -1;
3753                                 goto err;
3754                         }
3755                         /*
3756                          * We do check for empty pool because empty pool
3757                          * is used to find V1 LOV attributes
3758                          */
3759                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
3760                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
3761                         param.fp_exclude_pool = !!neg_opt;
3762                         param.fp_check_pool = 1;
3763                         break;
3764 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
3765                 case 'p': /* want this for --pool, to match getstripe/find */
3766                         fprintf(stderr,
3767                                 "warning: -p deprecated, use --print0 or -0\n");
3768 #endif
3769                 case '0':
3770                         param.fp_zero_end = 1;
3771                         break;
3772                 case 'P': /* we always print, this option is a no-op */
3773                         break;
3774                 case LFS_PROJID_OPT:
3775                         rc = name2projid(&param.fp_projid, optarg);
3776                         if (rc) {
3777                                 param.fp_projid = strtoul(optarg, &endptr, 10);
3778                                 if (*endptr != '\0') {
3779                                         fprintf(stderr,
3780                                                 "Invalid project ID: %s",
3781                                                 optarg);
3782                                         ret = -1;
3783                                         goto err;
3784                                 }
3785                         }
3786                         param.fp_exclude_projid = !!neg_opt;
3787                         param.fp_check_projid = 1;
3788                         break;
3789                 case 's':
3790                         if (optarg[0] == '+') {
3791                                 param.fp_size_sign = -1;
3792                                 optarg++;
3793                         } else if (optarg[0] == '-') {
3794                                 param.fp_size_sign =  1;
3795                                 optarg++;
3796                         }
3797
3798                         ret = llapi_parse_size(optarg, &param.fp_size,
3799                                                &param.fp_size_units, 0);
3800                         if (ret) {
3801                                 fprintf(stderr, "error: bad file size '%s'\n",
3802                                         optarg);
3803                                 goto err;
3804                         }
3805                         param.fp_check_size = 1;
3806                         param.fp_exclude_size = !!neg_opt;
3807                         break;
3808                 case 'S':
3809                         if (optarg[0] == '+') {
3810                                 param.fp_stripe_size_sign = -1;
3811                                 optarg++;
3812                         } else if (optarg[0] == '-') {
3813                                 param.fp_stripe_size_sign =  1;
3814                                 optarg++;
3815                         }
3816
3817                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
3818                                                &param.fp_stripe_size_units, 0);
3819                         if (ret) {
3820                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
3821                                         optarg);
3822                                 goto err;
3823                         }
3824                         param.fp_check_stripe_size = 1;
3825                         param.fp_exclude_stripe_size = !!neg_opt;
3826                         break;
3827                 case 't':
3828                         param.fp_exclude_type = !!neg_opt;
3829                         switch (optarg[0]) {
3830                         case 'b':
3831                                 param.fp_type = S_IFBLK;
3832                                 break;
3833                         case 'c':
3834                                 param.fp_type = S_IFCHR;
3835                                 break;
3836                         case 'd':
3837                                 param.fp_type = S_IFDIR;
3838                                 break;
3839                         case 'f':
3840                                 param.fp_type = S_IFREG;
3841                                 break;
3842                         case 'l':
3843                                 param.fp_type = S_IFLNK;
3844                                 break;
3845                         case 'p':
3846                                 param.fp_type = S_IFIFO;
3847                                 break;
3848                         case 's':
3849                                 param.fp_type = S_IFSOCK;
3850                                 break;
3851                         default:
3852                                 fprintf(stderr, "error: %s: bad type '%s'\n",
3853                                         argv[0], optarg);
3854                                 ret = CMD_HELP;
3855                                 goto err;
3856                         };
3857                         break;
3858                 case 'T':
3859                         if (optarg[0] == '+') {
3860                                 param.fp_mdt_count_sign = -1;
3861                                 optarg++;
3862                         } else if (optarg[0] == '-') {
3863                                 param.fp_mdt_count_sign =  1;
3864                                 optarg++;
3865                         }
3866
3867                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
3868                         if (*endptr != '\0') {
3869                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
3870                                         optarg);
3871                                 ret = -1;
3872                                 goto err;
3873                         }
3874                         param.fp_check_mdt_count = 1;
3875                         param.fp_exclude_mdt_count = !!neg_opt;
3876                         break;
3877                 default:
3878                         ret = CMD_HELP;
3879                         goto err;
3880                 };
3881         }
3882
3883         if (pathstart == -1) {
3884                 fprintf(stderr, "error: %s: no filename|pathname\n",
3885                         argv[0]);
3886                 ret = CMD_HELP;
3887                 goto err;
3888         } else if (pathend == -1) {
3889                 /* no options */
3890                 pathend = argc;
3891         }
3892
3893         do {
3894                 rc = llapi_find(argv[pathstart], &param);
3895                 if (rc != 0 && ret == 0)
3896                         ret = rc;
3897         } while (++pathstart < pathend);
3898
3899         if (ret)
3900                 fprintf(stderr, "error: %s failed for %s.\n",
3901                         argv[0], argv[optind - 1]);
3902 err:
3903         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
3904                 free(param.fp_obd_uuid);
3905
3906         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
3907                 free(param.fp_mdt_uuid);
3908
3909         return ret;
3910 }
3911
3912 static int lfs_getstripe_internal(int argc, char **argv,
3913                                   struct find_param *param)
3914 {
3915         struct option long_opts[] = {
3916 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3917         { .val = LFS_COMP_COUNT_OPT,
3918                         .name = "comp-count",   .has_arg = no_argument },
3919         { .val = LFS_COMP_COUNT_OPT,
3920                 .name = "component-count",      .has_arg = no_argument },
3921         { .val = LFS_COMP_FLAGS_OPT,
3922                         .name = "comp-flags",   .has_arg = optional_argument },
3923         { .val = LFS_COMP_FLAGS_OPT,
3924                 .name = "component-flags",      .has_arg = optional_argument },
3925         { .val = LFS_COMP_START_OPT,
3926                         .name = "comp-start",   .has_arg = optional_argument },
3927         { .val = LFS_COMP_START_OPT,
3928                 .name = "component-start",      .has_arg = optional_argument },
3929         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
3930         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
3931 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
3932         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
3933         { .val = 'D',   .name = "default",      .has_arg = no_argument },
3934         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
3935         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
3936         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
3937         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
3938 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3939 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
3940         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
3941         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
3942         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
3943         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
3944         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
3945         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
3946         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
3947         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
3948 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
3949 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
3950         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
3951         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
3952         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
3953 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3954         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
3955         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
3956         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
3957         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
3958         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
3959 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3960 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3961 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3962 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3963         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
3964         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
3965         { .name = NULL } };
3966         int c, rc;
3967         char *end, *tmp;
3968
3969         while ((c = getopt_long(argc, argv, "cdDE::FghiI::LmMoO:pqrRsSvy",
3970                                 long_opts, NULL)) != -1) {
3971                 switch (c) {
3972                 case 'c':
3973                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
3974                                 param->fp_verbose |= VERBOSE_COUNT;
3975                                 param->fp_max_depth = 0;
3976                         }
3977                         break;
3978                 case LFS_COMP_COUNT_OPT:
3979                         param->fp_verbose |= VERBOSE_COMP_COUNT;
3980                         param->fp_max_depth = 0;
3981                         break;
3982                 case LFS_COMP_FLAGS_OPT:
3983                         if (optarg != NULL) {
3984                                 rc = comp_str2flags(optarg,
3985                                                     &param->fp_comp_flags,
3986                                                     &param->fp_comp_neg_flags);
3987                                 if (rc != 0) {
3988                                         fprintf(stderr, "error: %s bad "
3989                                                 "component flags '%s'.\n",
3990                                                 argv[0], optarg);
3991                                         return CMD_HELP;
3992                                 }
3993                                 param->fp_check_comp_flags = 1;
3994                         } else {
3995                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
3996                                 param->fp_max_depth = 0;
3997                         }
3998                         break;
3999                 case LFS_COMP_START_OPT:
4000                         if (optarg != NULL) {
4001                                 tmp = optarg;
4002                                 if (tmp[0] == '+') {
4003                                         param->fp_comp_start_sign = -1;
4004                                         tmp++;
4005                                 } else if (tmp[0] == '-') {
4006                                         param->fp_comp_start_sign = 1;
4007                                         tmp++;
4008                                 }
4009                                 rc = llapi_parse_size(tmp,
4010                                                 &param->fp_comp_start,
4011                                                 &param->fp_comp_start_units, 0);
4012                                 if (rc != 0) {
4013                                         fprintf(stderr, "error: %s bad "
4014                                                 "component start '%s'.\n",
4015                                                 argv[0], tmp);
4016                                         return CMD_HELP;
4017                                 } else {
4018                                         param->fp_check_comp_start = 1;
4019                                 }
4020                         } else {
4021                                 param->fp_verbose |= VERBOSE_COMP_START;
4022                                 param->fp_max_depth = 0;
4023                         }
4024                         break;
4025                 case 'd':
4026                         param->fp_max_depth = 0;
4027                         break;
4028                 case 'D':
4029                         param->fp_get_default_lmv = 1;
4030                         break;
4031                 case 'E':
4032                         if (optarg != NULL) {
4033                                 tmp = optarg;
4034                                 if (tmp[0] == '+') {
4035                                         param->fp_comp_end_sign = -1;
4036                                         tmp++;
4037                                 } else if (tmp[0] == '-') {
4038                                         param->fp_comp_end_sign = 1;
4039                                         tmp++;
4040                                 }
4041
4042                                 if (arg_is_eof(tmp)) {
4043                                         param->fp_comp_end = LUSTRE_EOF;
4044                                         param->fp_comp_end_units = 1;
4045                                         rc = 0;
4046                                 } else {
4047                                         rc = llapi_parse_size(tmp,
4048                                                 &param->fp_comp_end,
4049                                                 &param->fp_comp_end_units, 0);
4050                                 }
4051                                 if (rc != 0) {
4052                                         fprintf(stderr, "error: %s bad "
4053                                                 "component end '%s'.\n",
4054                                                 argv[0], tmp);
4055                                         return CMD_HELP;
4056                                 }
4057                                 param->fp_check_comp_end = 1;
4058                         } else {
4059                                 param->fp_verbose |= VERBOSE_COMP_END;
4060                                 param->fp_max_depth = 0;
4061                         }
4062                         break;
4063                 case 'F':
4064                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4065                                 param->fp_verbose |= VERBOSE_DFID;
4066                                 param->fp_max_depth = 0;
4067                         }
4068                         break;
4069                 case 'g':
4070                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4071                                 param->fp_verbose |= VERBOSE_GENERATION;
4072                                 param->fp_max_depth = 0;
4073                         }
4074                         break;
4075                 case 'i':
4076                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4077                                 param->fp_verbose |= VERBOSE_OFFSET;
4078                                 param->fp_max_depth = 0;
4079                         }
4080                         break;
4081                 case 'I':
4082                         if (optarg != NULL) {
4083                                 param->fp_comp_id = strtoul(optarg, &end, 0);
4084                                 if (*end != '\0' || param->fp_comp_id == 0 ||
4085                                     param->fp_comp_id > LCME_ID_MAX) {
4086                                         fprintf(stderr, "error: %s bad "
4087                                                 "component id '%s'\n",
4088                                                 argv[0], optarg);
4089                                         return CMD_HELP;
4090                                 } else {
4091                                         param->fp_check_comp_id = 1;
4092                                 }
4093                         } else {
4094                                 param->fp_max_depth = 0;
4095                                 param->fp_verbose |= VERBOSE_COMP_ID;
4096                         }
4097                         break;
4098                 case 'L':
4099                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4100                                 param->fp_verbose |= VERBOSE_LAYOUT;
4101                                 param->fp_max_depth = 0;
4102                         }
4103                         break;
4104 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4105                 case 'M':
4106                         fprintf(stderr, "warning: '-M' deprecated"
4107                                 ", use '--mdt-index' or '-m' instead\n");
4108 #endif
4109                 case 'm':
4110                         if (!(param->fp_verbose & VERBOSE_DETAIL))
4111                                 param->fp_max_depth = 0;
4112                         param->fp_verbose |= VERBOSE_MDTINDEX;
4113                         break;
4114                 case 'O':
4115                         if (param->fp_obd_uuid) {
4116                                 fprintf(stderr,
4117                                         "error: %s: only one obduuid allowed",
4118                                         argv[0]);
4119                                 return CMD_HELP;
4120                         }
4121                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
4122                         break;
4123                 case 'p':
4124                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4125                                 param->fp_verbose |= VERBOSE_POOL;
4126                                 param->fp_max_depth = 0;
4127                         }
4128                         break;
4129                 case 'q':
4130                         param->fp_quiet++;
4131                         break;
4132                 case 'r':
4133                         param->fp_recursive = 1;
4134                         break;
4135                 case 'R':
4136                         param->fp_raw = 1;
4137                         break;
4138                 case 'S':
4139                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4140                                 param->fp_verbose |= VERBOSE_SIZE;
4141                                 param->fp_max_depth = 0;
4142                         }
4143                         break;
4144                 case 'v':
4145                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
4146                         break;
4147                 case 'y':
4148                         param->fp_yaml = 1;
4149                         break;
4150                 default:
4151                         return CMD_HELP;
4152                 }
4153         }
4154
4155         if (optind >= argc)
4156                 return CMD_HELP;
4157
4158         if (param->fp_recursive)
4159                 param->fp_max_depth = -1;
4160         else if (param->fp_verbose & VERBOSE_DETAIL)
4161                 param->fp_max_depth = 1;
4162
4163         if (!param->fp_verbose)
4164                 param->fp_verbose = VERBOSE_DEFAULT;
4165         if (param->fp_quiet)
4166                 param->fp_verbose = VERBOSE_OBJID;
4167
4168         do {
4169                 rc = llapi_getstripe(argv[optind], param);
4170         } while (++optind < argc && !rc);
4171
4172         if (rc)
4173                 fprintf(stderr, "error: %s failed for %s.\n",
4174                         argv[0], argv[optind - 1]);
4175         return rc;
4176 }
4177
4178 static int lfs_tgts(int argc, char **argv)
4179 {
4180         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
4181         struct find_param param;
4182         int index = 0, rc=0;
4183
4184         if (argc > 2)
4185                 return CMD_HELP;
4186
4187         if (argc == 2 && !realpath(argv[1], path)) {
4188                 rc = -errno;
4189                 fprintf(stderr, "error: invalid path '%s': %s\n",
4190                         argv[1], strerror(-rc));
4191                 return rc;
4192         }
4193
4194         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
4195                 /* Check if we have a mount point */
4196                 if (mntdir[0] == '\0')
4197                         continue;
4198
4199                 memset(&param, 0, sizeof(param));
4200                 if (!strcmp(argv[0], "mdts"))
4201                         param.fp_get_lmv = 1;
4202
4203                 rc = llapi_ostlist(mntdir, &param);
4204                 if (rc) {
4205                         fprintf(stderr, "error: %s: failed on %s\n",
4206                                 argv[0], mntdir);
4207                 }
4208                 if (path[0] != '\0')
4209                         break;
4210                 memset(mntdir, 0, PATH_MAX);
4211         }
4212
4213         return rc;
4214 }
4215
4216 static int lfs_getstripe(int argc, char **argv)
4217 {
4218         struct find_param param = { 0 };
4219
4220         param.fp_max_depth = 1;
4221         return lfs_getstripe_internal(argc, argv, &param);
4222 }
4223
4224 /* functions */
4225 static int lfs_getdirstripe(int argc, char **argv)
4226 {
4227         struct find_param param = { 0 };
4228         struct option long_opts[] = {
4229         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
4230         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4231         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
4232         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
4233         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4234         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4235         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4236         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
4237         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4238         { .name = NULL } };
4239         int c, rc;
4240
4241         param.fp_get_lmv = 1;
4242
4243         while ((c = getopt_long(argc, argv,
4244                                 "cDHimO:rtTy", long_opts, NULL)) != -1)
4245         {
4246                 switch (c) {
4247                 case 'c':
4248                 case 'T':
4249                         param.fp_verbose |= VERBOSE_COUNT;
4250                         break;
4251                 case 'D':
4252                         param.fp_get_default_lmv = 1;
4253                         break;
4254                 case 'i':
4255                 case 'm':
4256                         param.fp_verbose |= VERBOSE_OFFSET;
4257                         break;
4258 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4259                 case 't':
4260                         fprintf(stderr, "warning: '-t' deprecated, "
4261                                 "use '--mdt-hash' or '-H' instead\n");
4262 #endif
4263                 case 'H':
4264                         param.fp_verbose |= VERBOSE_HASH_TYPE;
4265                         break;
4266                 case 'O':
4267                         if (param.fp_obd_uuid) {
4268                                 fprintf(stderr,
4269                                         "error: %s: only one obduuid allowed",
4270                                         argv[0]);
4271                                 return CMD_HELP;
4272                         }
4273                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
4274                         break;
4275                 case 'r':
4276                         param.fp_recursive = 1;
4277                         break;
4278                 case 'y':
4279                         param.fp_yaml = 1;
4280                         break;
4281                 default:
4282                         return CMD_HELP;
4283                 }
4284         }
4285
4286         if (optind >= argc)
4287                 return CMD_HELP;
4288
4289         if (param.fp_recursive)
4290                 param.fp_max_depth = -1;
4291
4292         if (!param.fp_verbose)
4293                 param.fp_verbose = VERBOSE_DEFAULT;
4294
4295         do {
4296                 rc = llapi_getstripe(argv[optind], &param);
4297         } while (++optind < argc && !rc);
4298
4299         if (rc)
4300                 fprintf(stderr, "error: %s failed for %s.\n",
4301                         argv[0], argv[optind - 1]);
4302         return rc;
4303 }
4304
4305 enum mntdf_flags {
4306         MNTDF_INODES    = 0x0001,
4307         MNTDF_COOKED    = 0x0002,
4308         MNTDF_LAZY      = 0x0004,
4309         MNTDF_VERBOSE   = 0x0008,
4310         MNTDF_SHOW      = 0x0010,
4311 };
4312
4313 #define COOK(value)                                             \
4314 ({                                                              \
4315         int radix = 0;                                          \
4316         while (value > 1024) {                                  \
4317                 value /= 1024;                                  \
4318                 radix++;                                        \
4319         }                                                       \
4320         radix;                                                  \
4321 })
4322 #define UUF     "%-20s"
4323 #define CSF     "%11s"
4324 #define CDF     "%11llu"
4325 #define HDF     "%8.1f%c"
4326 #define RSF     "%4s"
4327 #define RDF     "%3d%%"
4328
4329 static inline int obd_statfs_ratio(const struct obd_statfs *st)
4330 {
4331         double avail, used, ratio = 0;
4332
4333         avail = st->os_bavail;
4334         used  = st->os_blocks - st->os_bfree;
4335         if (avail + used > 0)
4336                 ratio = used / (used + avail) * 100 + 0.5;
4337
4338         return (int)ratio;
4339 }
4340
4341 static int showdf(char *mntdir, struct obd_statfs *stat,
4342                   char *uuid, enum mntdf_flags flags,
4343                   char *type, int index, int rc)
4344 {
4345         long long avail, used, total;
4346         int ratio = 0;
4347         char *suffix = "KMGTPEZY";
4348         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
4349         char tbuf[3 * sizeof(__u64)];
4350         char ubuf[3 * sizeof(__u64)];
4351         char abuf[3 * sizeof(__u64)];
4352         char rbuf[3 * sizeof(__u64)];
4353
4354         if (!uuid || !stat)
4355                 return -EINVAL;
4356
4357         switch (rc) {
4358         case 0:
4359                 if (flags & MNTDF_INODES) {
4360                         avail = stat->os_ffree;
4361                         used = stat->os_files - stat->os_ffree;
4362                         total = stat->os_files;
4363                 } else {
4364                         int shift = flags & MNTDF_COOKED ? 0 : 10;
4365
4366                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
4367                         used  = ((stat->os_blocks - stat->os_bfree) *
4368                                  stat->os_bsize) >> shift;
4369                         total = (stat->os_blocks * stat->os_bsize) >> shift;
4370                 }
4371
4372                 ratio = obd_statfs_ratio(stat);
4373
4374                 if (flags & MNTDF_COOKED) {
4375                         int i;
4376                         double cook_val;
4377
4378                         cook_val = (double)total;
4379                         i = COOK(cook_val);
4380                         if (i > 0)
4381                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
4382                                          suffix[i - 1]);
4383                         else
4384                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
4385
4386                         cook_val = (double)used;
4387                         i = COOK(cook_val);
4388                         if (i > 0)
4389                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
4390                                          suffix[i - 1]);
4391                         else
4392                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
4393
4394                         cook_val = (double)avail;
4395                         i = COOK(cook_val);
4396                         if (i > 0)
4397                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
4398                                          suffix[i - 1]);
4399                         else
4400                                 snprintf(abuf, sizeof(abuf), CDF, avail);
4401                 } else {
4402                         snprintf(tbuf, sizeof(tbuf), CDF, total);
4403                         snprintf(ubuf, sizeof(tbuf), CDF, used);
4404                         snprintf(abuf, sizeof(tbuf), CDF, avail);
4405                 }
4406
4407                 sprintf(rbuf, RDF, ratio);
4408                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
4409                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
4410                 if (type)
4411                         printf("[%s:%d]", type, index);
4412
4413                 if (stat->os_state) {
4414                         /*
4415                          * Each character represents the matching
4416                          * OS_STATE_* bit.
4417                          */
4418                         const char state_names[] = "DRSI";
4419                         __u32      state;
4420                         __u32      i;
4421
4422                         printf(" ");
4423                         for (i = 0, state = stat->os_state;
4424                              state && i < sizeof(state_names); i++) {
4425                                 if (!(state & (1 << i)))
4426                                         continue;
4427                                 printf("%c", state_names[i]);
4428                                 state ^= 1 << i;
4429                         }
4430                 }
4431
4432                 printf("\n");
4433                 break;
4434         case -ENODATA:
4435                 printf(UUF": inactive device\n", uuid);
4436                 break;
4437         default:
4438                 printf(UUF": %s\n", uuid, strerror(-rc));
4439                 break;
4440         }
4441
4442         return 0;
4443 }
4444
4445 struct ll_stat_type {
4446         int   st_op;
4447         char *st_name;
4448 };
4449
4450 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
4451
4452 struct ll_statfs_data {
4453         int                     sd_index;
4454         struct obd_statfs       sd_st;
4455 };
4456
4457 struct ll_statfs_buf {
4458         int                     sb_count;
4459         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
4460 };
4461
4462 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
4463                  int ops, struct ll_statfs_buf *lsb)
4464 {
4465         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
4466         struct obd_uuid uuid_buf;
4467         char *poolname = NULL;
4468         struct ll_stat_type types[] = {
4469                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
4470                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
4471                 { .st_name = NULL } };
4472         struct ll_stat_type *tp;
4473         __u64 ost_ffree = 0;
4474         __u32 index;
4475         __u32 type;
4476         int fd;
4477         int rc = 0;
4478         int rc2;
4479
4480         if (pool) {
4481                 poolname = strchr(pool, '.');
4482                 if (poolname != NULL) {
4483                         if (strncmp(fsname, pool, strlen(fsname))) {
4484                                 fprintf(stderr, "filesystem name incorrect\n");
4485                                 return -ENODEV;
4486                         }
4487                         poolname++;
4488                 } else
4489                         poolname = pool;
4490         }
4491
4492         fd = open(mntdir, O_RDONLY);
4493         if (fd < 0) {
4494                 rc = -errno;
4495                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
4496                         strerror(errno));
4497                 return rc;
4498         }
4499
4500         if (flags & MNTDF_SHOW) {
4501                 if (flags & MNTDF_INODES)
4502                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4503                                "UUID", "Inodes", "IUsed", "IFree",
4504                                "IUse%", "Mounted on");
4505                 else
4506                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4507                                "UUID",
4508                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
4509                                "Used", "Available", "Use%", "Mounted on");
4510         }
4511
4512         for (tp = types; tp->st_name != NULL; tp++) {
4513                 if (!(tp->st_op & ops))
4514                         continue;
4515
4516                 for (index = 0; ; index++) {
4517                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
4518                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
4519                         type = flags & MNTDF_LAZY ?
4520                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
4521                         rc2 = llapi_obd_fstatfs(fd, type, index,
4522                                                &stat_buf, &uuid_buf);
4523                         if (rc2 == -ENODEV)
4524                                 break;
4525                         if (rc2 == -EAGAIN)
4526                                 continue;
4527                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
4528                                 if (!(flags & MNTDF_VERBOSE))
4529                                         continue;
4530                         } else if (rc2 < 0 && rc == 0) {
4531                                 rc = rc2;
4532                         }
4533
4534                         if (poolname && tp->st_op == LL_STATFS_LOV &&
4535                             llapi_search_ost(fsname, poolname,
4536                                              obd_uuid2str(&uuid_buf)) != 1)
4537                                 continue;
4538
4539                         /* the llapi_obd_statfs() call may have returned with
4540                          * an error, but if it filled in uuid_buf we will at
4541                          * lease use that to print out a message for that OBD.
4542                          * If we didn't get anything in the uuid_buf, then fill
4543                          * it in so that we can print an error message. */
4544                         if (uuid_buf.uuid[0] == '\0')
4545                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
4546                                          "%s%04x", tp->st_name, index);
4547                         if (!rc && lsb) {
4548                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
4549                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
4550                                 lsb->sb_count++;
4551                         }
4552                         if (flags & MNTDF_SHOW)
4553                                 showdf(mntdir, &stat_buf,
4554                                        obd_uuid2str(&uuid_buf), flags,
4555                                        tp->st_name, index, rc2);
4556
4557                         if (rc2 == 0) {
4558                                 if (tp->st_op == LL_STATFS_LMV) {
4559                                         sum.os_ffree += stat_buf.os_ffree;
4560                                         sum.os_files += stat_buf.os_files;
4561                                 } else /* if (tp->st_op == LL_STATFS_LOV) */ {
4562                                         sum.os_blocks += stat_buf.os_blocks *
4563                                                 stat_buf.os_bsize;
4564                                         sum.os_bfree  += stat_buf.os_bfree *
4565                                                 stat_buf.os_bsize;
4566                                         sum.os_bavail += stat_buf.os_bavail *
4567                                                 stat_buf.os_bsize;
4568                                         ost_ffree += stat_buf.os_ffree;
4569                                 }
4570                         }
4571                 }
4572         }
4573
4574         close(fd);
4575
4576         /* If we don't have as many objects free on the OST as inodes
4577          * on the MDS, we reduce the total number of inodes to
4578          * compensate, so that the "inodes in use" number is correct.
4579          * Matches ll_statfs_internal() so the results are consistent. */
4580         if (ost_ffree < sum.os_ffree) {
4581                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
4582                 sum.os_ffree = ost_ffree;
4583         }
4584         if (flags & MNTDF_SHOW) {
4585                 printf("\n");
4586                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
4587                 printf("\n");
4588         }
4589
4590         return rc;
4591 }
4592
4593 static int ll_statfs_data_comp(const void *sd1, const void *sd2)
4594 {
4595         const struct obd_statfs *st1 = &((const struct ll_statfs_data *)sd1)->
4596                                                 sd_st;
4597         const struct obd_statfs *st2 = &((const struct ll_statfs_data *)sd2)->
4598                                                 sd_st;
4599         int r1 = obd_statfs_ratio(st1);
4600         int r2 = obd_statfs_ratio(st2);
4601         int64_t result = r1 - r2;
4602
4603         /* if both space usage are above 90, compare free inodes */
4604         if (r1 > 90 && r2 > 90)
4605                 result = st2->os_ffree - st1->os_ffree;
4606
4607         if (result < 0)
4608                 return -1;
4609         else if (result == 0)
4610                 return 0;
4611         else
4612                 return 1;
4613 }
4614
4615 /* functions */
4616 static int lfs_setdirstripe(int argc, char **argv)
4617 {
4618         char                    *dname;
4619         int                     result;
4620         struct lfs_setstripe_args        lsa = { 0 };
4621         struct llapi_stripe_param       *param = NULL;
4622         __u32                   mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
4623         char                    *end;
4624         int                     c;
4625         char                    *mode_opt = NULL;
4626         bool                    default_stripe = false;
4627         mode_t                  mode = S_IRWXU | S_IRWXG | S_IRWXO;
4628         mode_t                  previous_mode = 0;
4629         bool                    delete = false;
4630         struct ll_statfs_buf    *lsb = NULL;
4631         char                    mntdir[PATH_MAX] = "";
4632         bool                    auto_distributed = false;
4633
4634         struct option long_opts[] = {
4635         { .val = 'c',   .name = "count",        .has_arg = required_argument },
4636         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
4637         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
4638         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4639         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
4640         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4641         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
4642 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4643         { .val = 'i',   .name = "index",        .has_arg = required_argument },
4644 #endif
4645         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
4646 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4647         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
4648 #endif
4649         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4650 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
4651         { .name = NULL } };
4652
4653         setstripe_args_init(&lsa);
4654
4655         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:", long_opts,
4656                                 NULL)) >= 0) {
4657                 switch (c) {
4658                 case 0:
4659                         /* Long options. */
4660                         break;
4661                 case 'c':
4662                 case 'T':
4663                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
4664                         if (*end != '\0') {
4665                                 fprintf(stderr,
4666                                         "%s %s: invalid stripe count '%s'\n",
4667                                         progname, argv[0], optarg);
4668                                 return CMD_HELP;
4669                         }
4670                         break;
4671                 case 'd':
4672                         delete = true;
4673                         default_stripe = true;
4674                         break;
4675                 case 'D':
4676                         default_stripe = true;
4677                         break;
4678 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4679                 case 't':
4680                         fprintf(stderr, "warning: '--hash-type' and '-t' "
4681                               "deprecated, use '--mdt-hash' or '-H' instead\n");
4682 #endif
4683                 case 'H':
4684                         lsa.lsa_pattern = check_hashtype(optarg);
4685                         if (lsa.lsa_pattern == 0) {
4686                                 fprintf(stderr,
4687                                         "%s %s: bad stripe hash type '%s'\n",
4688                                         progname, argv[0], optarg);
4689                                 return CMD_HELP;
4690                         }
4691                         break;
4692                 case 'i':
4693 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4694                         if (strcmp(argv[optind - 1], "--index") == 0)
4695                                 fprintf(stderr,
4696                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
4697                                         progname, argv[0]);
4698 #endif
4699                         lsa.lsa_nr_tgts = parse_targets(mdts,
4700                                                 sizeof(mdts) / sizeof(__u32),
4701                                                 lsa.lsa_nr_tgts, optarg);
4702                         if (lsa.lsa_nr_tgts < 0) {
4703                                 fprintf(stderr,
4704                                         "%s %s: invalid MDT target(s) '%s'\n",
4705                                         progname, argv[0], optarg);
4706                                 return CMD_HELP;
4707                         }
4708
4709                         lsa.lsa_tgts = mdts;
4710                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4711                                 lsa.lsa_stripe_off = mdts[0];
4712                         break;
4713 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 16, 53, 0)
4714                 case 'm':
4715                         fprintf(stderr, "warning: '-m' is deprecated, "
4716                                 "use '--mode' or '-o' instead\n");
4717 #endif
4718                 case 'o':
4719                         mode_opt = optarg;
4720                         break;
4721                 default:
4722                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
4723                                 progname, argv[0], argv[optind - 1]);
4724                         return CMD_HELP;
4725                 }
4726         }
4727
4728         if (optind == argc) {
4729                 fprintf(stderr, "%s %s: DIR must be specified\n",
4730                         progname, argv[0]);
4731                 return CMD_HELP;
4732         }
4733
4734         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
4735             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT) {
4736                 fprintf(stderr,
4737                         "%s %s: stripe offset and count must be specified\n",
4738                         progname, argv[0]);
4739                 return CMD_HELP;
4740         }
4741
4742         if (delete &&
4743             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
4744              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
4745                 fprintf(stderr,
4746                         "%s %s: cannot specify -d with -c or -i options\n",
4747                         progname, argv[0]);
4748                 return CMD_HELP;
4749         }
4750
4751         if (mode_opt != NULL) {
4752                 mode = strtoul(mode_opt, &end, 8);
4753                 if (*end != '\0') {
4754                         fprintf(stderr,
4755                                 "%s %s: bad MODE '%s'\n",
4756                                 progname, argv[0], mode_opt);
4757                         return CMD_HELP;
4758                 }
4759                 previous_mode = umask(0);
4760         }
4761
4762         /*
4763          * initialize stripe parameters, in case param is converted to specific,
4764          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
4765          */
4766         param = calloc(1, offsetof(typeof(*param),
4767                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
4768                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
4769         if (param == NULL) {
4770                 fprintf(stderr,
4771                         "%s %s: cannot allocate memory for parameters: %s\n",
4772                         progname, argv[0], strerror(ENOMEM));
4773                 return CMD_HELP;
4774         }
4775
4776         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
4777                 param->lsp_stripe_count = lsa.lsa_stripe_count;
4778         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4779                 param->lsp_stripe_offset = -1;
4780         else
4781                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
4782         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
4783                 param->lsp_stripe_pattern = lsa.lsa_pattern;
4784         else
4785                 param->lsp_stripe_pattern = LMV_HASH_TYPE_FNV_1A_64;
4786         param->lsp_pool = lsa.lsa_pool_name;
4787         param->lsp_is_specific = false;
4788         if (lsa.lsa_nr_tgts > 1) {
4789                 if (lsa.lsa_stripe_count > 0 &&
4790                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
4791                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
4792                         fprintf(stderr, "error: %s: stripe count %lld doesn't "
4793                                 "match the number of MDTs: %d\n",
4794                                 argv[0], lsa.lsa_stripe_count, lsa.lsa_nr_tgts);
4795                         free(param);
4796                         return CMD_HELP;
4797                 }
4798
4799                 param->lsp_is_specific = true;
4800                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
4801                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
4802         }
4803
4804         dname = argv[optind];
4805         do {
4806                 if (default_stripe) {
4807                         result = llapi_dir_set_default_lmv(dname, param);
4808                 } else {
4809                         /* if current \a dname isn't under the same \a mntdir
4810                          * as the last one, and the last one was
4811                          * auto-distributed, restore \a param.
4812                          */
4813                         if (mntdir[0] != '\0' &&
4814                             strncmp(dname, mntdir, strlen(mntdir)) &&
4815                             auto_distributed) {
4816                                 param->lsp_is_specific = false;
4817                                 param->lsp_stripe_offset = -1;
4818                                 auto_distributed = false;
4819                         }
4820
4821                         if (!param->lsp_is_specific &&
4822                             param->lsp_stripe_offset == -1) {
4823                                 char path[PATH_MAX] = "";
4824
4825                                 if (!lsb) {
4826                                         lsb = malloc(sizeof(*lsb));
4827                                         if (!lsb) {
4828                                                 result = -ENOMEM;
4829                                                 break;
4830                                         }
4831                                 }
4832                                 lsb->sb_count = 0;
4833
4834                                 /* use mntdir for dirname() temporarily */
4835                                 strncpy(mntdir, dname, sizeof(mntdir));
4836                                 if (!realpath(dirname(mntdir), path)) {
4837                                         result = -errno;
4838                                         fprintf(stderr,
4839                                                 "error: invalid path '%s': %s\n",
4840                                                 argv[optind], strerror(errno));
4841                                         break;
4842                                 }
4843                                 mntdir[0] = '\0';
4844
4845                                 result = llapi_search_mounts(path, 0, mntdir,
4846                                                              NULL);
4847                                 if (result < 0 || mntdir[0] == '\0') {
4848                                         fprintf(stderr,
4849                                                 "No suitable Lustre mount found\n");
4850                                         break;
4851                                 }
4852
4853                                 result = mntdf(mntdir, NULL, NULL, 0,
4854                                                LL_STATFS_LMV, lsb);
4855                                 if (result < 0)
4856                                         break;
4857
4858                                 if (param->lsp_stripe_count > lsb->sb_count) {
4859                                         fprintf(stderr,
4860                                                 "error: stripe count %d is too big\n",
4861                                                 param->lsp_stripe_count);
4862                                         result = -ERANGE;
4863                                         break;
4864                                 }
4865
4866                                 qsort(lsb->sb_buf, lsb->sb_count,
4867                                       sizeof(struct ll_statfs_data),
4868                                       ll_statfs_data_comp);
4869
4870                                 auto_distributed = true;
4871                         }
4872
4873                         if (auto_distributed) {
4874                                 int r;
4875                                 int nr = MAX(param->lsp_stripe_count,
4876                                              lsb->sb_count / 2);
4877
4878                                 /* don't use server whose usage is above 90% */
4879                                 while (nr != param->lsp_stripe_count &&
4880                                        obd_statfs_ratio(&lsb->sb_buf[nr].sd_st)
4881                                        > 90)
4882                                         nr = MAX(param->lsp_stripe_count,
4883                                                  nr / 2);
4884
4885                                 /* get \a r between [0, nr) */
4886                                 r = rand() % nr;
4887
4888                                 param->lsp_stripe_offset =
4889                                         lsb->sb_buf[r].sd_index;
4890                                 if (param->lsp_stripe_count > 1) {
4891                                         int i = 0;
4892
4893                                         param->lsp_is_specific = true;
4894                                         for (; i < param->lsp_stripe_count; i++)
4895                                                 param->lsp_tgts[(i + r) % nr] =
4896                                                         lsb->sb_buf[i].sd_index;
4897                                 }
4898                         }
4899
4900                         result = llapi_dir_create(dname, mode, param);
4901                 }
4902
4903                 if (result) {
4904                         fprintf(stderr,
4905                                 "%s setdirstripe: cannot create stripe dir '%s': %s\n",
4906                                 progname, dname, strerror(-result));
4907                         break;
4908                 }
4909                 dname = argv[++optind];
4910         } while (dname != NULL);
4911
4912         if (mode_opt != NULL)
4913                 umask(previous_mode);
4914
4915         free(lsb);
4916         free(param);
4917         return result;
4918 }
4919
4920 /* functions */
4921 static int lfs_rmentry(int argc, char **argv)
4922 {
4923         char *dname;
4924         int   index;
4925         int   result = 0;
4926
4927         if (argc <= 1) {
4928                 fprintf(stderr, "error: %s: missing dirname\n",
4929                         argv[0]);
4930                 return CMD_HELP;
4931         }
4932
4933         index = 1;
4934         dname = argv[index];
4935         while (dname != NULL) {
4936                 result = llapi_direntry_remove(dname);
4937                 if (result) {
4938                         fprintf(stderr, "error: %s: remove dir entry '%s' "
4939                                 "failed\n", argv[0], dname);
4940                         break;
4941                 }
4942                 dname = argv[++index];
4943         }
4944         return result;
4945 }
4946
4947 static int lfs_mv(int argc, char **argv)
4948 {
4949         struct  find_param param = {
4950                 .fp_max_depth = -1,
4951                 .fp_mdt_index = -1,
4952         };
4953         char   *end;
4954         int     c;
4955         int     rc = 0;
4956         struct option long_opts[] = {
4957         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4958         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
4959         { .name = NULL } };
4960
4961         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
4962                 switch (c) {
4963 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4964                 case 'M':
4965                         fprintf(stderr, "warning: '-M' deprecated"
4966                                 ", use '--mdt-index' or '-m' instead\n");
4967 #endif
4968                 case 'm':
4969                         param.fp_mdt_index = strtoul(optarg, &end, 0);
4970                         if (*end != '\0') {
4971                                 fprintf(stderr, "%s: invalid MDT index'%s'\n",
4972                                         argv[0], optarg);
4973                                 return CMD_HELP;
4974                         }
4975                         break;
4976                 case 'v':
4977                         param.fp_verbose = VERBOSE_DETAIL;
4978                         break;
4979                 default:
4980                         fprintf(stderr, "error: %s: unrecognized option '%s'\n",
4981                                 argv[0], argv[optind - 1]);
4982                         return CMD_HELP;
4983                 }
4984         }
4985
4986         if (param.fp_mdt_index == -1) {
4987                 fprintf(stderr, "%s: MDT index must be specified\n", argv[0]);
4988                 return CMD_HELP;
4989         }
4990
4991         if (optind >= argc) {
4992                 fprintf(stderr, "%s: missing operand path\n", argv[0]);
4993                 return CMD_HELP;
4994         }
4995
4996         param.fp_migrate = 1;
4997         rc = llapi_migrate_mdt(argv[optind], &param);
4998         if (rc != 0)
4999                 fprintf(stderr, "%s: cannot migrate '%s' to MDT%04x: %s\n",
5000                         argv[0], argv[optind], param.fp_mdt_index,
5001                         strerror(-rc));
5002         return rc;
5003 }
5004
5005 static int lfs_osts(int argc, char **argv)
5006 {
5007         return lfs_tgts(argc, argv);
5008 }
5009
5010 static int lfs_mdts(int argc, char **argv)
5011 {
5012         return lfs_tgts(argc, argv);
5013 }
5014
5015 static int lfs_df(int argc, char **argv)
5016 {
5017         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5018         enum mntdf_flags flags = MNTDF_SHOW;
5019         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
5020         int c, rc = 0, index = 0;
5021         char fsname[PATH_MAX] = "", *pool_name = NULL;
5022         struct option long_opts[] = {
5023         { .val = 'h',   .name = "human-readable",
5024                                                 .has_arg = no_argument },
5025         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
5026         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
5027         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
5028         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5029         { .name = NULL} };
5030
5031         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
5032                 switch (c) {
5033                 case 'h':
5034                         flags |= MNTDF_COOKED;
5035                         break;
5036                 case 'i':
5037                         flags |= MNTDF_INODES;
5038                         break;
5039                 case 'l':
5040                         flags |= MNTDF_LAZY;
5041                         break;
5042                 case 'p':
5043                         pool_name = optarg;
5044                         break;
5045                 case 'v':
5046                         flags |= MNTDF_VERBOSE;
5047                         break;
5048                 default:
5049                         return CMD_HELP;
5050                 }
5051         }
5052         if (optind < argc && !realpath(argv[optind], path)) {
5053                 rc = -errno;
5054                 fprintf(stderr, "error: invalid path '%s': %s\n",
5055                         argv[optind], strerror(-rc));
5056                 return rc;
5057         }
5058
5059         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5060                 /* Check if we have a mount point */
5061                 if (mntdir[0] == '\0')
5062                         continue;
5063
5064                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
5065                 if (rc || path[0] != '\0')
5066                         break;
5067                 fsname[0] = '\0'; /* avoid matching in next loop */
5068                 mntdir[0] = '\0'; /* avoid matching in next loop */
5069         }
5070
5071         return rc;
5072 }
5073
5074 static int lfs_getname(int argc, char **argv)
5075 {
5076         char mntdir[PATH_MAX] = "", path[PATH_MAX] = "", fsname[PATH_MAX] = "";
5077         int rc = 0, index = 0, c;
5078         char buf[sizeof(struct obd_uuid)];
5079
5080         while ((c = getopt(argc, argv, "h")) != -1)
5081                 return CMD_HELP;
5082
5083         if (optind == argc) { /* no paths specified, get all paths. */
5084                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5085                         rc = llapi_getname(mntdir, buf, sizeof(buf));
5086                         if (rc < 0) {
5087                                 fprintf(stderr,
5088                                         "cannot get name for `%s': %s\n",
5089                                         mntdir, strerror(-rc));
5090                                 break;
5091                         }
5092
5093                         printf("%s %s\n", buf, mntdir);
5094
5095                         path[0] = fsname[0] = mntdir[0] = 0;
5096                 }
5097         } else { /* paths specified, only attempt to search these. */
5098                 for (; optind < argc; optind++) {
5099                         rc = llapi_getname(argv[optind], buf, sizeof(buf));
5100                         if (rc < 0) {
5101                                 fprintf(stderr,
5102                                         "cannot get name for `%s': %s\n",
5103                                         argv[optind], strerror(-rc));
5104                                 break;
5105                         }
5106
5107                         printf("%s %s\n", buf, argv[optind]);
5108                 }
5109         }
5110         return rc;
5111 }
5112
5113 static int lfs_check(int argc, char **argv)
5114 {
5115         int rc;
5116         char mntdir[PATH_MAX] = {'\0'};
5117         int num_types = 1;
5118         char *obd_types[2];
5119         char obd_type1[4];
5120         char obd_type2[4];
5121
5122         if (argc != 2) {
5123                 fprintf(stderr, "%s check: server type must be specified\n",
5124                         progname);
5125                 return CMD_HELP;
5126         }
5127
5128         obd_types[0] = obd_type1;
5129         obd_types[1] = obd_type2;
5130
5131         if (strcmp(argv[1], "osts") == 0) {
5132                 strcpy(obd_types[0], "osc");
5133         } else if (strcmp(argv[1], "mds") == 0) {
5134                 strcpy(obd_types[0], "mdc");
5135         } else if (strcmp(argv[1], "servers") == 0) {
5136                 num_types = 2;
5137                 strcpy(obd_types[0], "osc");
5138                 strcpy(obd_types[1], "mdc");
5139         } else {
5140                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
5141                         progname, argv[1]);
5142                 return CMD_HELP;
5143         }
5144
5145         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
5146         if (rc < 0 || mntdir[0] == '\0') {
5147                 fprintf(stderr,
5148                         "%s check: cannot find mounted Lustre filesystem: %s\n",
5149                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
5150                 return rc;
5151         }
5152
5153         rc = llapi_target_check(num_types, obd_types, mntdir);
5154         if (rc)
5155                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
5156                         progname, argv[1], strerror(-rc));
5157
5158         return rc;
5159
5160 }
5161
5162 #ifdef HAVE_SYS_QUOTA_H
5163 #define ARG2INT(nr, str, msg)                                           \
5164 do {                                                                    \
5165         char *endp;                                                     \
5166         nr = strtol(str, &endp, 0);                                     \
5167         if (*endp != '\0') {                                            \
5168                 fprintf(stderr, "%s: bad %s '%s'\n",                    \
5169                         progname, msg, str);                            \
5170                 return CMD_HELP;                                        \
5171         }                                                               \
5172 } while (0)
5173
5174 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
5175
5176 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
5177  * returns the value or ULONG_MAX on integer overflow or incorrect format
5178  * Notes:
5179  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
5180  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
5181  *        3. empty integer value is interpreted as 0
5182  */
5183 static unsigned long str2sec(const char* timestr)
5184 {
5185         const char spec[] = "smhdw";
5186         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5187         unsigned long val = 0;
5188         char *tail;
5189
5190         if (strpbrk(timestr, spec) == NULL) {
5191                 /* no specifiers inside the time string,
5192                    should treat it as an integer value */
5193                 val = strtoul(timestr, &tail, 10);
5194                 return *tail ? ULONG_MAX : val;
5195         }
5196
5197         /* format string is XXwXXdXXhXXmXXs */
5198         while (*timestr) {
5199                 unsigned long v;
5200                 int ind;
5201                 char* ptr;
5202
5203                 v = strtoul(timestr, &tail, 10);
5204                 if (v == ULONG_MAX || *tail == '\0')
5205                         /* value too large (ULONG_MAX or more)
5206                            or missing specifier */
5207                         goto error;
5208
5209                 ptr = strchr(spec, *tail);
5210                 if (ptr == NULL)
5211                         /* unknown specifier */
5212                         goto error;
5213
5214                 ind = ptr - spec;
5215
5216                 /* check if product will overflow the type */
5217                 if (!(v < ULONG_MAX / mult[ind]))
5218                         goto error;
5219
5220                 ADD_OVERFLOW(val, mult[ind] * v);
5221                 if (val == ULONG_MAX)
5222                         goto error;
5223
5224                 timestr = tail + 1;
5225         }
5226
5227         return val;
5228
5229 error:
5230         return ULONG_MAX;
5231 }
5232
5233 #define ARG2ULL(nr, str, def_units)                                     \
5234 do {                                                                    \
5235         unsigned long long limit, units = def_units;                    \
5236         int rc;                                                         \
5237                                                                         \
5238         rc = llapi_parse_size(str, &limit, &units, 1);                  \
5239         if (rc < 0) {                                                   \
5240                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
5241                         progname, str);                                 \
5242                 return CMD_HELP;                                        \
5243         }                                                               \
5244         nr = limit;                                                     \
5245 } while (0)
5246
5247 static inline int has_times_option(int argc, char **argv)
5248 {
5249         int i;
5250
5251         for (i = 1; i < argc; i++)
5252                 if (!strcmp(argv[i], "-t"))
5253                         return 1;
5254
5255         return 0;
5256 }
5257
5258 int lfs_setquota_times(int argc, char **argv)
5259 {
5260         int c, rc;
5261         struct if_quotactl qctl;
5262         char *mnt, *obd_type = (char *)qctl.obd_type;
5263         struct obd_dqblk *dqb = &qctl.qc_dqblk;
5264         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
5265         struct option long_opts[] = {
5266         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
5267         { .val = 'g',   .name = "group",        .has_arg = no_argument },
5268         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
5269         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
5270         { .val = 't',   .name = "times",        .has_arg = no_argument },
5271         { .val = 'u',   .name = "user",         .has_arg = no_argument },
5272         { .name = NULL } };
5273         int qtype;
5274
5275         memset(&qctl, 0, sizeof(qctl));
5276         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
5277         qctl.qc_type = ALLQUOTA;
5278
5279         while ((c = getopt_long(argc, argv, "b:gi:ptu",
5280                                 long_opts, NULL)) != -1) {
5281                 switch (c) {
5282                 case 'u':
5283                         qtype = USRQUOTA;
5284                         goto quota_type;
5285                 case 'g':
5286                         qtype = GRPQUOTA;
5287                         goto quota_type;
5288                 case 'p':
5289                         qtype = PRJQUOTA;
5290 quota_type:
5291                         if (qctl.qc_type != ALLQUOTA) {
5292                                 fprintf(stderr, "error: -u/g/p can't be used "
5293                                                 "more than once\n");
5294                                 return CMD_HELP;
5295                         }
5296                         qctl.qc_type = qtype;
5297                         break;
5298                 case 'b':
5299                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
5300                                 fprintf(stderr, "error: bad block-grace: %s\n",
5301                                         optarg);
5302                                 return CMD_HELP;
5303                         }
5304                         dqb->dqb_valid |= QIF_BTIME;
5305                         break;
5306                 case 'i':
5307                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
5308                                 fprintf(stderr, "error: bad inode-grace: %s\n",
5309                                         optarg);
5310                                 return CMD_HELP;
5311                         }
5312                         dqb->dqb_valid |= QIF_ITIME;
5313                         break;
5314                 case 't': /* Yes, of course! */
5315                         break;
5316                 default: /* getopt prints error message for us when opterr != 0 */
5317                         return CMD_HELP;
5318                 }
5319         }
5320
5321         if (qctl.qc_type == ALLQUOTA) {
5322                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
5323                 return CMD_HELP;
5324         }
5325
5326         if (optind != argc - 1) {
5327                 fprintf(stderr, "error: unexpected parameters encountered\n");
5328                 return CMD_HELP;
5329         }
5330
5331         mnt = argv[optind];
5332         rc = llapi_quotactl(mnt, &qctl);
5333         if (rc) {
5334                 if (*obd_type)
5335                         fprintf(stderr, "%s %s ", obd_type,
5336                                 obd_uuid2str(&qctl.obd_uuid));
5337                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
5338                 return rc;
5339         }
5340
5341         return 0;
5342 }
5343
5344 #define BSLIMIT (1 << 0)
5345 #define BHLIMIT (1 << 1)
5346 #define ISLIMIT (1 << 2)
5347 #define IHLIMIT (1 << 3)
5348
5349 int lfs_setquota(int argc, char **argv)
5350 {
5351         int c, rc;
5352         struct if_quotactl qctl;
5353         char *mnt, *obd_type = (char *)qctl.obd_type;
5354         struct obd_dqblk *dqb = &qctl.qc_dqblk;
5355         struct option long_opts[] = {
5356         { .val = 'b',   .name = "block-softlimit",
5357                                                 .has_arg = required_argument },
5358         { .val = 'B',   .name = "block-hardlimit",
5359                                                 .has_arg = required_argument },
5360         { .val = 'g',   .name = "group",        .has_arg = required_argument },
5361         { .val = 'i',   .name = "inode-softlimit",
5362                                                 .has_arg = required_argument },
5363         { .val = 'I',   .name = "inode-hardlimit",
5364                                                 .has_arg = required_argument },
5365         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
5366         { .val = 'u',   .name = "user",         .has_arg = required_argument },
5367         { .name = NULL } };
5368         unsigned limit_mask = 0;
5369         char *endptr;
5370         int qtype;
5371
5372         if (has_times_option(argc, argv))
5373                 return lfs_setquota_times(argc, argv);
5374
5375         memset(&qctl, 0, sizeof(qctl));
5376         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
5377         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
5378                                   * so it can be used as a marker that qc_type
5379                                   * isn't reinitialized from command line */
5380
5381         while ((c = getopt_long(argc, argv, "b:B:g:i:I:p:u:",
5382                 long_opts, NULL)) != -1) {
5383                 switch (c) {
5384                 case 'u':
5385                         qtype = USRQUOTA;
5386                         rc = name2uid(&qctl.qc_id, optarg);
5387                         goto quota_type;
5388                 case 'g':
5389                         qtype = GRPQUOTA;
5390                         rc = name2gid(&qctl.qc_id, optarg);
5391                         goto quota_type;
5392                 case 'p':
5393                         qtype = PRJQUOTA;
5394                         rc = name2projid(&qctl.qc_id, optarg);
5395 quota_type:
5396                         if (qctl.qc_type != ALLQUOTA) {
5397                                 fprintf(stderr,
5398                                         "%s setquota: only one of -u, -g or -p may be specified\n",
5399                                         progname);
5400                                 return CMD_HELP;
5401                         }
5402                         qctl.qc_type = qtype;
5403                         if (rc) {
5404                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
5405                                 if (*endptr != '\0') {
5406                                         fprintf(stderr,
5407                                                 "%s setquota: invalid id '%s'\n",
5408                                                 progname, optarg);
5409                                         return -1;
5410                                 }
5411                         }
5412                         break;
5413                 case 'b':
5414                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
5415                         dqb->dqb_bsoftlimit >>= 10;
5416                         limit_mask |= BSLIMIT;
5417                         if (dqb->dqb_bsoftlimit &&
5418                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
5419                                 fprintf(stderr,
5420                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\n"
5421                                         "See '%s help setquota' or Lustre manual for details\n",
5422                                         progname, dqb->dqb_bsoftlimit,
5423                                         progname);
5424                         break;
5425                 case 'B':
5426                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
5427                         dqb->dqb_bhardlimit >>= 10;
5428                         limit_mask |= BHLIMIT;
5429                         if (dqb->dqb_bhardlimit &&
5430                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
5431                                 fprintf(stderr,
5432                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
5433                                         "See '%s help setquota' or Lustre manual for details\n",
5434                                         progname, dqb->dqb_bhardlimit,
5435                                         progname);
5436                         break;
5437                 case 'i':
5438                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
5439                         limit_mask |= ISLIMIT;
5440                         if (dqb->dqb_isoftlimit &&
5441                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
5442                                 fprintf(stderr,
5443                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\n"
5444                                         "See '%s help setquota' or Lustre manual for details\n",
5445                                         progname, dqb->dqb_isoftlimit,
5446                                         progname);
5447                         break;
5448                 case 'I':
5449                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
5450                         limit_mask |= IHLIMIT;
5451                         if (dqb->dqb_ihardlimit &&
5452                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
5453                                 fprintf(stderr,
5454                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\n"
5455                                         "See '%s help setquota' or Lustre manual for details\n",
5456                                         progname, dqb->dqb_ihardlimit,
5457                                         progname);
5458                         break;
5459                 default:
5460                         fprintf(stderr,
5461                                 "%s setquota: unrecognized option '%s'\n",
5462                                 progname, argv[optind - 1]);
5463                         return CMD_HELP;
5464                 }
5465         }
5466
5467         if (qctl.qc_type == ALLQUOTA) {
5468                 fprintf(stderr,
5469                         "%s setquota: either -u or -g must be specified\n",
5470                         progname);
5471                 return CMD_HELP;
5472         }
5473
5474         if (limit_mask == 0) {
5475                 fprintf(stderr,
5476                         "%s setquota: at least one limit must be specified\n",
5477                         progname);
5478                 return CMD_HELP;
5479         }
5480
5481         if (optind != argc - 1) {
5482                 fprintf(stderr,
5483                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
5484                         progname, argv[optind]);
5485                 return CMD_HELP;
5486         }
5487
5488         mnt = argv[optind];
5489
5490         if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
5491             (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
5492                 /* sigh, we can't just set blimits/ilimits */
5493                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
5494                                                .qc_type = qctl.qc_type,
5495                                                .qc_id   = qctl.qc_id};
5496
5497                 rc = llapi_quotactl(mnt, &tmp_qctl);
5498                 if (rc < 0)
5499                         return rc;
5500
5501                 if (!(limit_mask & BHLIMIT))
5502                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
5503                 if (!(limit_mask & BSLIMIT))
5504                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
5505                 if (!(limit_mask & IHLIMIT))
5506                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
5507                 if (!(limit_mask & ISLIMIT))
5508                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
5509
5510                 /* Keep grace times if we have got no softlimit arguments */
5511                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
5512                         dqb->dqb_valid |= QIF_BTIME;
5513                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
5514                 }
5515
5516                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
5517                         dqb->dqb_valid |= QIF_ITIME;
5518                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
5519                 }
5520         }
5521
5522         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
5523         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
5524
5525         rc = llapi_quotactl(mnt, &qctl);
5526         if (rc) {
5527                 if (*obd_type)
5528                         fprintf(stderr,
5529                                 "%s setquota: cannot quotactl '%s' '%s': %s",
5530                                 progname, obd_type,
5531                                 obd_uuid2str(&qctl.obd_uuid), strerror(-rc));
5532                 return rc;
5533         }
5534
5535         return 0;
5536 }
5537
5538 /* Converts seconds value into format string
5539  * result is returned in buf
5540  * Notes:
5541  *        1. result is in descenting order: 1w2d3h4m5s
5542  *        2. zero fields are not filled (except for p. 3): 5d1s
5543  *        3. zero seconds value is presented as "0s"
5544  */
5545 static char * __sec2str(time_t seconds, char *buf)
5546 {
5547         const char spec[] = "smhdw";
5548         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5549         unsigned long c;
5550         char *tail = buf;
5551         int i;
5552
5553         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
5554                 c = seconds / mult[i];
5555
5556                 if (c > 0 || (i == 0 && buf == tail))
5557                         tail += snprintf(tail, 40-(tail-buf), "%lu%c", c, spec[i]);
5558
5559                 seconds %= mult[i];
5560         }
5561
5562         return tail;
5563 }
5564
5565 static void sec2str(time_t seconds, char *buf, int rc)
5566 {
5567         char *tail = buf;
5568
5569         if (rc)
5570                 *tail++ = '[';
5571
5572         tail = __sec2str(seconds, tail);
5573
5574         if (rc && tail - buf < 39) {
5575                 *tail++ = ']';
5576                 *tail++ = 0;
5577         }
5578 }
5579
5580 static void diff2str(time_t seconds, char *buf, time_t now)
5581 {
5582
5583         buf[0] = 0;
5584         if (!seconds)
5585                 return;
5586         if (seconds <= now) {
5587                 strcpy(buf, "none");
5588                 return;
5589         }
5590         __sec2str(seconds - now, buf);
5591 }
5592
5593 static void print_quota_title(char *name, struct if_quotactl *qctl,
5594                               bool human_readable)
5595 {
5596         printf("Disk quotas for %s %s (%cid %u):\n",
5597                qtype_name(qctl->qc_type), name,
5598                *qtype_name(qctl->qc_type), qctl->qc_id);
5599         printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
5600                "Filesystem", human_readable ? "used" : "kbytes",
5601                "quota", "limit", "grace",
5602                "files", "quota", "limit", "grace");
5603 }
5604
5605 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
5606 {
5607         if (!h) {
5608                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
5609         } else {
5610                 if (num >> 40)
5611                         snprintf(buf, buflen, "%5.4gP",
5612                                  (double)num / ((__u64)1 << 40));
5613                 else if (num >> 30)
5614                         snprintf(buf, buflen, "%5.4gT",
5615                                  (double)num / (1 << 30));
5616                 else if (num >> 20)
5617                         snprintf(buf, buflen, "%5.4gG",
5618                                  (double)num / (1 << 20));
5619                 else if (num >> 10)
5620                         snprintf(buf, buflen, "%5.4gM",
5621                                  (double)num / (1 << 10));
5622                 else
5623                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
5624         }
5625 }
5626
5627 #define STRBUF_LEN      32
5628 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
5629                         int rc, bool h)
5630 {
5631         time_t now;
5632
5633         time(&now);
5634
5635         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA) {
5636                 int bover = 0, iover = 0;
5637                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
5638                 char numbuf[3][STRBUF_LEN];
5639                 char timebuf[40];
5640                 char strbuf[STRBUF_LEN];
5641
5642                 if (dqb->dqb_bhardlimit &&
5643                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
5644                         bover = 1;
5645                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
5646                         if (dqb->dqb_btime > now) {
5647                                 bover = 2;
5648                         } else {
5649                                 bover = 3;
5650                         }
5651                 }
5652
5653                 if (dqb->dqb_ihardlimit &&
5654                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
5655                         iover = 1;
5656                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
5657                         if (dqb->dqb_itime > now) {
5658                                 iover = 2;
5659                         } else {
5660                                 iover = 3;
5661                         }
5662                 }
5663
5664
5665                 if (strlen(mnt) > 15)
5666                         printf("%s\n%15s", mnt, "");
5667                 else
5668                         printf("%15s", mnt);
5669
5670                 if (bover)
5671                         diff2str(dqb->dqb_btime, timebuf, now);
5672
5673                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
5674                            strbuf, sizeof(strbuf), h);
5675                 if (rc == -EREMOTEIO)
5676                         sprintf(numbuf[0], "%s*", strbuf);
5677                 else
5678                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
5679                                 "%s" : "[%s]", strbuf);
5680
5681                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
5682                 if (type == QC_GENERAL)
5683                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
5684                                 "%s" : "[%s]", strbuf);
5685                 else
5686                         sprintf(numbuf[1], "%s", "-");
5687
5688                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
5689                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
5690                         "%s" : "[%s]", strbuf);
5691
5692                 printf(" %7s%c %6s %7s %7s",
5693                        numbuf[0], bover ? '*' : ' ', numbuf[1],
5694                        numbuf[2], bover > 1 ? timebuf : "-");
5695
5696                 if (iover)
5697                         diff2str(dqb->dqb_itime, timebuf, now);
5698
5699                 sprintf(numbuf[0], (dqb->dqb_valid & QIF_INODES) ?
5700                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_curinodes);
5701
5702                 if (type == QC_GENERAL)
5703                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
5704                                 "%ju" : "[%ju]",
5705                                 (uintmax_t)dqb->dqb_isoftlimit);
5706                 else
5707                         sprintf(numbuf[1], "%s", "-");
5708
5709                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
5710                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
5711
5712                 if (type != QC_OSTIDX)
5713                         printf(" %7s%c %6s %7s %7s",
5714                                numbuf[0], iover ? '*' : ' ', numbuf[1],
5715                                numbuf[2], iover > 1 ? timebuf : "-");
5716                 else
5717                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
5718                 printf("\n");
5719
5720         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
5721                    qctl->qc_cmd == Q_GETOINFO) {
5722                 char bgtimebuf[40];
5723                 char igtimebuf[40];
5724
5725                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
5726                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
5727                 printf("Block grace time: %s; Inode grace time: %s\n",
5728                        bgtimebuf, igtimebuf);
5729         }
5730 }
5731
5732 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
5733                            bool h, __u64 *total)
5734 {
5735         int rc = 0, rc1 = 0, count = 0;
5736         __u32 valid = qctl->qc_valid;
5737
5738         rc = llapi_get_obd_count(mnt, &count, is_mdt);
5739         if (rc) {
5740                 fprintf(stderr, "can not get %s count: %s\n",
5741                         is_mdt ? "mdt": "ost", strerror(-rc));
5742                 return rc;
5743         }
5744
5745         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
5746                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
5747                 rc = llapi_quotactl(mnt, qctl);
5748                 if (rc) {
5749                         /* It is remote client case. */
5750                         if (rc == -EOPNOTSUPP) {
5751                                 rc = 0;
5752                                 goto out;
5753                         }
5754
5755                         if (!rc1)
5756                                 rc1 = rc;
5757                         fprintf(stderr, "quotactl %s%d failed.\n",
5758                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
5759                         continue;
5760                 }
5761
5762                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
5763                             qctl->qc_valid, 0, h);
5764                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
5765                                    qctl->qc_dqblk.dqb_bhardlimit;
5766         }
5767 out:
5768         qctl->qc_valid = valid;
5769         return rc ? : rc1;
5770 }
5771
5772 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
5773                            int verbose, int quiet, bool human_readable)
5774 {
5775         int rc1 = 0, rc2 = 0, rc3 = 0;
5776         char *obd_type = (char *)qctl->obd_type;
5777         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
5778         __u64 total_ialloc = 0, total_balloc = 0;
5779         int inacc;
5780
5781         rc1 = llapi_quotactl(mnt, qctl);
5782         if (rc1 < 0) {
5783                 switch (rc1) {
5784                 case -ESRCH:
5785                         fprintf(stderr, "%s quotas are not enabled.\n",
5786                                 qtype_name(qctl->qc_type));
5787                         goto out;
5788                 case -EPERM:
5789                         fprintf(stderr, "Permission denied.\n");
5790                 case -ENODEV:
5791                 case -ENOENT:
5792                         /* We already got error message. */
5793                         goto out;
5794                 default:
5795                         fprintf(stderr, "Unexpected quotactl error: %s\n",
5796                                 strerror(-rc1));
5797                 }
5798         }
5799
5800         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA && !quiet)
5801                 print_quota_title(name, qctl, human_readable);
5802
5803         if (rc1 && *obd_type)
5804                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
5805
5806         if (qctl->qc_valid != QC_GENERAL)
5807                 mnt = "";
5808
5809         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA) &&
5810                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
5811                  (QIF_LIMITS|QIF_USAGE));
5812
5813         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable);
5814
5815         if (qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
5816             verbose) {
5817                 char strbuf[STRBUF_LEN];
5818
5819                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
5820                                       &total_ialloc);
5821                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
5822                                       &total_balloc);
5823                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
5824                            human_readable);
5825                 printf("Total allocated inode limit: %ju, total "
5826                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
5827                        strbuf);
5828         }
5829
5830         if (rc1 || rc2 || rc3 || inacc)
5831                 printf("Some errors happened when getting quota info. "
5832                        "Some devices may be not working or deactivated. "
5833                        "The data in \"[]\" is inaccurate.\n");
5834 out:
5835         return rc1;
5836
5837 }
5838
5839 static int lfs_project(int argc, char **argv)
5840 {
5841         int ret = 0, err = 0, c, i;
5842         struct project_handle_control phc = { 0 };
5843         enum lfs_project_ops_t op;
5844
5845         phc.newline = true;
5846         phc.assign_projid = false;
5847         /* default action */
5848         op = LFS_PROJECT_LIST;
5849
5850         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
5851                 switch (c) {
5852                 case 'c':
5853                         if (op != LFS_PROJECT_LIST) {
5854                                 fprintf(stderr,
5855                                         "%s: cannot specify '-c' '-C' '-s' together\n",
5856                                         progname);
5857                                 return CMD_HELP;
5858                         }
5859
5860                         op = LFS_PROJECT_CHECK;
5861                         break;
5862                 case 'C':
5863                         if (op != LFS_PROJECT_LIST) {
5864                                 fprintf(stderr,
5865                                         "%s: cannot specify '-c' '-C' '-s' together\n",
5866                                         progname);
5867                                 return CMD_HELP;
5868                         }
5869
5870                         op = LFS_PROJECT_CLEAR;
5871                         break;
5872                 case 's':
5873                         if (op != LFS_PROJECT_LIST) {
5874                                 fprintf(stderr,
5875                                         "%s: cannot specify '-c' '-C' '-s' together\n",
5876                                         progname);
5877                                 return CMD_HELP;
5878                         }
5879
5880                         phc.set_inherit = true;
5881                         op = LFS_PROJECT_SET;
5882                         break;
5883                 case 'd':
5884                         phc.dironly = true;
5885                         break;
5886                 case 'k':
5887                         phc.keep_projid = true;
5888                         break;
5889                 case 'r':
5890                         phc.recursive = true;
5891                         break;
5892                 case 'p':
5893                         phc.projid = strtoul(optarg, NULL, 0);
5894                         phc.assign_projid = true;
5895
5896                         break;
5897                 case '0':
5898                         phc.newline = false;
5899                         break;
5900                 default:
5901                         fprintf(stderr, "%s: invalid option '%c'\n",
5902                                 progname, optopt);
5903                         return CMD_HELP;
5904                 }
5905         }
5906
5907         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
5908                 op = LFS_PROJECT_SET;
5909                 phc.set_projid = true;
5910         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
5911                 phc.set_projid = true;
5912         }
5913
5914         switch (op) {
5915         case LFS_PROJECT_CHECK:
5916                 if (phc.keep_projid) {
5917                         fprintf(stderr,
5918                                 "%s: '-k' is useless together with '-c'\n",
5919                                 progname);
5920                         return CMD_HELP;
5921                 }
5922                 break;
5923         case LFS_PROJECT_CLEAR:
5924                 if (!phc.newline) {
5925                         fprintf(stderr,
5926                                 "%s: '-0' is useless together with '-C'\n",
5927                                 progname);
5928                         return CMD_HELP;
5929                 }
5930                 if (phc.assign_projid) {
5931                         fprintf(stderr,
5932                                 "%s: '-p' is useless together with '-C'\n",
5933                                 progname);
5934                         return CMD_HELP;
5935                 }
5936                 break;
5937         case LFS_PROJECT_SET:
5938                 if (!phc.newline) {
5939                         fprintf(stderr,
5940                                 "%s: '-0' is useless together with '-s'\n",
5941                                 progname);
5942                         return CMD_HELP;
5943                 }
5944                 if (phc.keep_projid) {
5945                         fprintf(stderr,
5946                                 "%s: '-k' is useless together with '-s'\n",
5947                                 progname);
5948                         return CMD_HELP;
5949                 }
5950                 break;
5951         default:
5952                 if (!phc.newline) {
5953                         fprintf(stderr,
5954                                 "%s: '-0' is useless for list operations\n",
5955                                 progname);
5956                         return CMD_HELP;
5957                 }
5958                 break;
5959         }
5960
5961         argv += optind;
5962         argc -= optind;
5963         if (argc == 0) {
5964                 fprintf(stderr, "%s: missing file or directory target(s)\n",
5965                         progname);
5966                 return CMD_HELP;
5967         }
5968
5969         for (i = 0; i < argc; i++) {
5970                 switch (op) {
5971                 case LFS_PROJECT_CHECK:
5972                         err = lfs_project_check(argv[i], &phc);
5973                         break;
5974                 case LFS_PROJECT_LIST:
5975                         err = lfs_project_list(argv[i], &phc);
5976                         break;
5977                 case LFS_PROJECT_CLEAR:
5978                         err = lfs_project_clear(argv[i], &phc);
5979                         break;
5980                 case LFS_PROJECT_SET:
5981                         err = lfs_project_set(argv[i], &phc);
5982                         break;
5983                 default:
5984                         break;
5985                 }
5986                 if (err && !ret)
5987                         ret = err;
5988         }
5989
5990         return ret;
5991 }
5992
5993 static int lfs_quota(int argc, char **argv)
5994 {
5995         int c;
5996         char *mnt, *name = NULL;
5997         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
5998                                     .qc_type = ALLQUOTA };
5999         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
6000         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
6001         char *endptr;
6002         __u32 valid = QC_GENERAL, idx = 0;
6003         bool human_readable = false;
6004         int qtype;
6005
6006         while ((c = getopt(argc, argv, "gi:I:o:pqtuvh")) != -1) {
6007                 switch (c) {
6008                 case 'u':
6009                         qtype = USRQUOTA;
6010                         goto quota_type;
6011                 case 'g':
6012                         qtype = GRPQUOTA;
6013                         goto quota_type;
6014                 case 'p':
6015                         qtype = PRJQUOTA;
6016 quota_type:
6017                         if (qctl.qc_type != ALLQUOTA) {
6018                                 fprintf(stderr,
6019                                         "%s quota: only one of -u, -g, or -p may be specified\n",
6020                                         progname);
6021                                 return CMD_HELP;
6022                         }
6023                         qctl.qc_type = qtype;
6024                         break;
6025                 case 't':
6026                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
6027                         break;
6028                 case 'o':
6029                         valid = qctl.qc_valid = QC_UUID;
6030                         snprintf(obd_uuid, sizeof(qctl.obd_uuid), "%s", optarg);
6031                         break;
6032                 case 'i':
6033                         valid = qctl.qc_valid = QC_MDTIDX;
6034                         idx = qctl.qc_idx = atoi(optarg);
6035                         if (idx == 0 && *optarg != '0') {
6036                                 fprintf(stderr,
6037                                         "%s quota: invalid MDT index '%s'\n",
6038                                         progname, optarg);
6039                                 return CMD_HELP;
6040                         }
6041                         break;
6042                 case 'I':
6043                         valid = qctl.qc_valid = QC_OSTIDX;
6044                         idx = qctl.qc_idx = atoi(optarg);
6045                         if (idx == 0 && *optarg != '0') {
6046                                 fprintf(stderr,
6047                                         "%s quota: invalid OST index '%s'\n",
6048                                         progname, optarg);
6049                                 return CMD_HELP;
6050                         }
6051                         break;
6052                 case 'v':
6053                         verbose = 1;
6054                         break;
6055                 case 'q':
6056                         quiet = 1;
6057                         break;
6058                 case 'h':
6059                         human_readable = true;
6060                         break;
6061                 default:
6062                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
6063                                 progname, argv[optind - 1]);
6064                         return CMD_HELP;
6065                 }
6066         }
6067
6068         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
6069         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
6070             optind == argc - 1) {
6071
6072                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
6073                 qctl.qc_valid = valid;
6074                 qctl.qc_idx = idx;
6075
6076                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
6077                         qctl.qc_type = qtype;
6078                         if (qtype == USRQUOTA) {
6079                                 qctl.qc_id = geteuid();
6080                                 rc = uid2name(&name, qctl.qc_id);
6081                         } else {
6082                                 qctl.qc_id = getegid();
6083                                 rc = gid2name(&name, qctl.qc_id);
6084                         }
6085                         if (rc)
6086                                 name = "<unknown>";
6087                         mnt = argv[optind];
6088                         rc1 = get_print_quota(mnt, name, &qctl, verbose, quiet,
6089                                               human_readable);
6090                         if (rc1 && !rc)
6091                                 rc = rc1;
6092                 }
6093         /* lfs quota -u username /path/to/lustre/mount */
6094         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
6095                 /* options should be followed by u/g-name and mntpoint */
6096                 if (optind + 2 != argc || qctl.qc_type == ALLQUOTA) {
6097                         fprintf(stderr,
6098                                 "%s quota: name and mount point must be specified\n",
6099                                 progname);
6100                         return CMD_HELP;
6101                 }
6102
6103                 name = argv[optind++];
6104                 switch (qctl.qc_type) {
6105                 case USRQUOTA:
6106                         rc = name2uid(&qctl.qc_id, name);
6107                         break;
6108                 case GRPQUOTA:
6109                         rc = name2gid(&qctl.qc_id, name);
6110                         break;
6111                 case PRJQUOTA:
6112                         rc = name2projid(&qctl.qc_id, name);
6113                         break;
6114                 default:
6115                         rc = -ENOTSUP;
6116                         break;
6117                 }
6118                 if (rc) {
6119                         qctl.qc_id = strtoul(name, &endptr, 10);
6120                         if (*endptr != '\0') {
6121                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
6122                                         progname, name);
6123                                 return CMD_HELP;
6124                         }
6125                 }
6126                 mnt = argv[optind];
6127                 rc = get_print_quota(mnt, name, &qctl, verbose, quiet,
6128                                      human_readable);
6129         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
6130                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
6131                         progname);
6132                 return CMD_HELP;
6133         }
6134
6135         return rc;
6136 }
6137 #endif /* HAVE_SYS_QUOTA_H! */
6138
6139 static int flushctx_ioctl(char *mp)
6140 {
6141         int fd, rc;
6142
6143         fd = open(mp, O_RDONLY);
6144         if (fd == -1) {
6145                 fprintf(stderr, "flushctx: error open %s: %s\n",
6146                         mp, strerror(errno));
6147                 return -1;
6148         }
6149
6150         rc = ioctl(fd, LL_IOC_FLUSHCTX);
6151         if (rc == -1)
6152                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
6153                         mp, strerror(errno));
6154
6155         close(fd);
6156         return rc;
6157 }
6158
6159 static int lfs_flushctx(int argc, char **argv)
6160 {
6161         int     kdestroy = 0, c;
6162         char    mntdir[PATH_MAX] = {'\0'};
6163         int     index = 0;
6164         int     rc = 0;
6165
6166         while ((c = getopt(argc, argv, "k")) != -1) {
6167                 switch (c) {
6168                 case 'k':
6169                         kdestroy = 1;
6170                         break;
6171                 default:
6172                         fprintf(stderr, "error: %s: option '-%c' "
6173                                         "unrecognized\n", argv[0], c);
6174                         return CMD_HELP;
6175                 }
6176         }
6177
6178         if (kdestroy) {
6179             if ((rc = system("kdestroy > /dev/null")) != 0) {
6180                 rc = WEXITSTATUS(rc);
6181                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
6182             }
6183         }
6184
6185         if (optind >= argc) {
6186                 /* flush for all mounted lustre fs. */
6187                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
6188                         /* Check if we have a mount point */
6189                         if (mntdir[0] == '\0')
6190                                 continue;
6191
6192                         if (flushctx_ioctl(mntdir))
6193                                 rc = -1;
6194
6195                         mntdir[0] = '\0'; /* avoid matching in next loop */
6196                 }
6197         } else {
6198                 /* flush fs as specified */
6199                 while (optind < argc) {
6200                         if (flushctx_ioctl(argv[optind++]))
6201                                 rc = -1;
6202                 }
6203         }
6204         return rc;
6205 }
6206
6207 static int lfs_cp(int argc, char **argv)
6208 {
6209         fprintf(stderr, "remote client copy file(s).\n"
6210                 "obsolete, does not support it anymore.\n");
6211         return 0;
6212 }
6213
6214 static int lfs_ls(int argc, char **argv)
6215 {
6216         fprintf(stderr, "remote client lists directory contents.\n"
6217                 "obsolete, does not support it anymore.\n");
6218         return 0;
6219 }
6220
6221 static int lfs_changelog(int argc, char **argv)
6222 {
6223         void *changelog_priv;
6224         struct changelog_rec *rec;
6225         long long startrec = 0, endrec = 0;
6226         char *mdd;
6227         struct option long_opts[] = {
6228                 { .val = 'f', .name = "follow", .has_arg = no_argument },
6229                 { .name = NULL } };
6230         char short_opts[] = "f";
6231         int rc, follow = 0;
6232
6233         while ((rc = getopt_long(argc, argv, short_opts,
6234                 long_opts, NULL)) != -1) {
6235                 switch (rc) {
6236                 case 'f':
6237                         follow++;
6238                         break;
6239                 case '?':
6240                         return CMD_HELP;
6241                 default:
6242                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
6243                                 argv[0], argv[optind - 1]);
6244                         return CMD_HELP;
6245                 }
6246         }
6247         if (optind >= argc)
6248                 return CMD_HELP;
6249
6250         mdd = argv[optind++];
6251         if (argc > optind)
6252                 startrec = strtoll(argv[optind++], NULL, 10);
6253         if (argc > optind)
6254                 endrec = strtoll(argv[optind++], NULL, 10);
6255
6256         rc = llapi_changelog_start(&changelog_priv,
6257                                    CHANGELOG_FLAG_BLOCK |
6258                                    CHANGELOG_FLAG_JOBID |
6259                                    CHANGELOG_FLAG_EXTRA_FLAGS |
6260                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
6261                                    mdd, startrec);
6262         if (rc < 0) {
6263                 fprintf(stderr, "Can't start changelog: %s\n",
6264                         strerror(errno = -rc));
6265                 return rc;
6266         }
6267
6268         rc = llapi_changelog_set_xflags(changelog_priv,
6269                                         CHANGELOG_EXTRA_FLAG_UIDGID |
6270                                         CHANGELOG_EXTRA_FLAG_NID |
6271                                         CHANGELOG_EXTRA_FLAG_OMODE |
6272                                         CHANGELOG_EXTRA_FLAG_XATTR);
6273         if (rc < 0) {
6274                 fprintf(stderr, "Can't set xflags for changelog: %s\n",
6275                         strerror(errno = -rc));
6276                 return rc;
6277         }
6278
6279         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
6280                 time_t secs;
6281                 struct tm ts;
6282
6283                 if (endrec && rec->cr_index > endrec) {
6284                         llapi_changelog_free(&rec);
6285                         break;
6286                 }
6287                 if (rec->cr_index < startrec) {
6288                         llapi_changelog_free(&rec);
6289                         continue;
6290                 }
6291
6292                 secs = rec->cr_time >> 30;
6293                 gmtime_r(&secs, &ts);
6294                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
6295                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
6296                        changelog_type2str(rec->cr_type),
6297                        ts.tm_hour, ts.tm_min, ts.tm_sec,
6298                        (int)(rec->cr_time & ((1 << 30) - 1)),
6299                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
6300                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
6301
6302                 if (rec->cr_flags & CLF_JOBID) {
6303                         struct changelog_ext_jobid *jid =
6304                                 changelog_rec_jobid(rec);
6305
6306                         if (jid->cr_jobid[0] != '\0')
6307                                 printf(" j=%s", jid->cr_jobid);
6308                 }
6309
6310                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
6311                         struct changelog_ext_extra_flags *ef =
6312                                 changelog_rec_extra_flags(rec);
6313
6314                         printf(" ef=0x%llx", ef->cr_extra_flags);
6315
6316                         if (ef->cr_extra_flags & CLFE_UIDGID) {
6317                                 struct changelog_ext_uidgid *uidgid =
6318                                         changelog_rec_uidgid(rec);
6319
6320                                 printf(" u=%llu:%llu",
6321                                        uidgid->cr_uid, uidgid->cr_gid);
6322                         }
6323                         if (ef->cr_extra_flags & CLFE_NID) {
6324                                 struct changelog_ext_nid *nid =
6325                                         changelog_rec_nid(rec);
6326
6327                                 printf(" nid=%s",
6328                                        libcfs_nid2str(nid->cr_nid));
6329                         }
6330
6331                         if (ef->cr_extra_flags & CLFE_OPEN) {
6332                                 struct changelog_ext_openmode *omd =
6333                                         changelog_rec_openmode(rec);
6334                                 char mode[] = "---";
6335
6336                                 /* exec mode must be exclusive */
6337                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
6338                                         mode[2] = 'x';
6339                                 } else {
6340                                         if (omd->cr_openflags & MDS_FMODE_READ)
6341                                                 mode[0] = 'r';
6342                                         if (omd->cr_openflags &
6343                                             (MDS_FMODE_WRITE |
6344                                              MDS_OPEN_TRUNC |
6345                                              MDS_OPEN_APPEND))
6346                                                 mode[1] = 'w';
6347                                 }
6348
6349                                 if (strcmp(mode, "---") != 0)
6350                                         printf(" m=%s", mode);
6351
6352                         }
6353
6354                         if (ef->cr_extra_flags & CLFE_XATTR) {
6355                                 struct changelog_ext_xattr *xattr =
6356                                         changelog_rec_xattr(rec);
6357
6358                                 if (xattr->cr_xattr[0] != '\0')
6359                                         printf(" x=%s", xattr->cr_xattr);
6360                         }
6361                 }
6362
6363                 if (rec->cr_namelen)
6364                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
6365                                rec->cr_namelen, changelog_rec_name(rec));
6366
6367                 if (rec->cr_flags & CLF_RENAME) {
6368                         struct changelog_ext_rename *rnm =
6369                                 changelog_rec_rename(rec);
6370
6371                         if (!fid_is_zero(&rnm->cr_sfid))
6372                                 printf(" s="DFID" sp="DFID" %.*s",
6373                                        PFID(&rnm->cr_sfid),
6374                                        PFID(&rnm->cr_spfid),
6375                                        (int)changelog_rec_snamelen(rec),
6376                                        changelog_rec_sname(rec));
6377                 }
6378                 printf("\n");
6379
6380                 llapi_changelog_free(&rec);
6381         }
6382
6383         llapi_changelog_fini(&changelog_priv);
6384
6385         if (rc < 0)
6386                 fprintf(stderr, "Changelog: %s\n", strerror(errno = -rc));
6387
6388         return (rc == 1 ? 0 : rc);
6389 }
6390
6391 static int lfs_changelog_clear(int argc, char **argv)
6392 {
6393         long long endrec;
6394         int rc;
6395
6396         if (argc != 4)
6397                 return CMD_HELP;
6398
6399         endrec = strtoll(argv[3], NULL, 10);
6400
6401         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
6402
6403         if (rc == -EINVAL)
6404                 fprintf(stderr, "%s: record out of range: %llu\n",
6405                         argv[0], endrec);
6406         else if (rc == -ENOENT)
6407                 fprintf(stderr, "%s: no changelog user: %s\n",
6408                         argv[0], argv[2]);
6409         else if (rc)
6410                 fprintf(stderr, "%s error: %s\n", argv[0],
6411                         strerror(-rc));
6412
6413         if (rc)
6414                 errno = -rc;
6415
6416         return rc;
6417 }
6418
6419 static int lfs_fid2path(int argc, char **argv)
6420 {
6421         struct option long_opts[] = {
6422                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
6423                 { .val = 'l',   .name = "link", .has_arg = required_argument },
6424                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
6425                 { .name = NULL } };
6426         char  short_opts[] = "cl:r:";
6427         char *device, *fid, *path;
6428         long long recno = -1;
6429         int linkno = -1;
6430         int lnktmp;
6431         int printcur = 0;
6432         int rc = 0;
6433
6434         while ((rc = getopt_long(argc, argv, short_opts,
6435                 long_opts, NULL)) != -1) {
6436                 switch (rc) {
6437                 case 'c':
6438                         printcur++;
6439                         break;
6440                 case 'l':
6441                         linkno = strtol(optarg, NULL, 10);
6442                         break;
6443                 case 'r':
6444                         recno = strtoll(optarg, NULL, 10);
6445                         break;
6446                 case '?':
6447                         return CMD_HELP;
6448                 default:
6449                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
6450                                 argv[0], argv[optind - 1]);
6451                         return CMD_HELP;
6452                 }
6453         }
6454
6455         if (argc < 3)
6456                 return CMD_HELP;
6457
6458         device = argv[optind++];
6459         path = calloc(1, PATH_MAX);
6460         if (path == NULL) {
6461                 fprintf(stderr, "error: Not enough memory\n");
6462                 return -errno;
6463         }
6464
6465         rc = 0;
6466         while (optind < argc) {
6467                 fid = argv[optind++];
6468
6469                 lnktmp = (linkno >= 0) ? linkno : 0;
6470                 while (1) {
6471                         int oldtmp = lnktmp;
6472                         long long rectmp = recno;
6473                         int rc2;
6474                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
6475                                              &rectmp, &lnktmp);
6476                         if (rc2 < 0) {
6477                                 fprintf(stderr, "%s: error on FID %s: %s\n",
6478                                         argv[0], fid, strerror(errno = -rc2));
6479                                 if (rc == 0)
6480                                         rc = rc2;
6481                                 break;
6482                         }
6483
6484                         if (printcur)
6485                                 fprintf(stdout, "%lld ", rectmp);
6486                         if (device[0] == '/') {
6487                                 fprintf(stdout, "%s", device);
6488                                 if (device[strlen(device) - 1] != '/')
6489                                         fprintf(stdout, "/");
6490                         } else if (path[0] == '\0') {
6491                                 fprintf(stdout, "/");
6492                         }
6493                         fprintf(stdout, "%s\n", path);
6494
6495                         if (linkno >= 0)
6496                                 /* specified linkno */
6497                                 break;
6498                         if (oldtmp == lnktmp)
6499                                 /* no more links */
6500                                 break;
6501                 }
6502         }
6503
6504         free(path);
6505         return rc;
6506 }
6507
6508 static int lfs_path2fid(int argc, char **argv)
6509 {
6510         struct option long_opts[] = {
6511                 { .val = 'p', .name = "parents", .has_arg = no_argument },
6512                 { .name = NULL } };
6513         char            **path;
6514         const char        short_opts[] = "p";
6515         const char       *sep = "";
6516         struct lu_fid     fid;
6517         int               rc = 0;
6518         bool              show_parents = false;
6519
6520         while ((rc = getopt_long(argc, argv, short_opts,
6521                                  long_opts, NULL)) != -1) {
6522                 switch (rc) {
6523                 case 'p':
6524                         show_parents = true;
6525                         break;
6526                 default:
6527                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
6528                                 argv[0], argv[optind - 1]);
6529                         return CMD_HELP;
6530                 }
6531         }
6532
6533         if (optind > argc - 1)
6534                 return CMD_HELP;
6535         else if (optind < argc - 1)
6536                 sep = ": ";
6537
6538         rc = 0;
6539         for (path = argv + optind; *path != NULL; path++) {
6540                 int err = 0;
6541                 if (!show_parents) {
6542                         err = llapi_path2fid(*path, &fid);
6543                         if (!err)
6544                                 printf("%s%s"DFID"\n",
6545                                        *sep != '\0' ? *path : "", sep,
6546                                        PFID(&fid));
6547                 } else {
6548                         char            name[NAME_MAX + 1];
6549                         unsigned int    linkno = 0;
6550
6551                         while ((err = llapi_path2parent(*path, linkno, &fid,
6552                                                 name, sizeof(name))) == 0) {
6553                                 if (*sep != '\0' && linkno == 0)
6554                                         printf("%s%s", *path, sep);
6555
6556                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
6557                                        PFID(&fid), name);
6558                                 linkno++;
6559                         }
6560
6561                         /* err == -ENODATA is end-of-loop */
6562                         if (linkno > 0 && err == -ENODATA) {
6563                                 printf("\n");
6564                                 err = 0;
6565                         }
6566                 }
6567
6568                 if (err) {
6569                         fprintf(stderr, "%s: can't get %sfid for %s: %s\n",
6570                                 argv[0], show_parents ? "parent " : "", *path,
6571                                 strerror(-err));
6572                         if (rc == 0) {
6573                                 rc = err;
6574                                 errno = -err;
6575                         }
6576                 }
6577         }
6578
6579         return rc;
6580 }
6581
6582 static int lfs_data_version(int argc, char **argv)
6583 {
6584         char *path;
6585         __u64 data_version;
6586         int fd;
6587         int rc;
6588         int c;
6589         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
6590
6591         if (argc < 2)
6592                 return CMD_HELP;
6593
6594         while ((c = getopt(argc, argv, "nrw")) != -1) {
6595                 switch (c) {
6596                 case 'n':
6597                         data_version_flags = 0;
6598                         break;
6599                 case 'r':
6600                         data_version_flags |= LL_DV_RD_FLUSH;
6601                         break;
6602                 case 'w':
6603                         data_version_flags |= LL_DV_WR_FLUSH;
6604                         break;
6605                 default:
6606                         return CMD_HELP;
6607                 }
6608         }
6609         if (optind == argc)
6610                 return CMD_HELP;
6611
6612         path = argv[optind];
6613         fd = open(path, O_RDONLY);
6614         if (fd < 0)
6615                 err(errno, "cannot open file %s", path);
6616
6617         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
6618         if (rc < 0)
6619                 err(errno, "cannot get version for %s", path);
6620         else
6621                 printf("%ju" "\n", (uintmax_t)data_version);
6622
6623         close(fd);
6624         return rc;
6625 }
6626
6627 static int lfs_hsm_state(int argc, char **argv)
6628 {
6629         int rc;
6630         int i = 1;
6631         char *path;
6632         struct hsm_user_state hus;
6633
6634         if (argc < 2)
6635                 return CMD_HELP;
6636
6637         do {
6638                 path = argv[i];
6639
6640                 rc = llapi_hsm_state_get(path, &hus);
6641                 if (rc) {
6642                         fprintf(stderr, "can't get hsm state for %s: %s\n",
6643                                 path, strerror(errno = -rc));
6644                         return rc;
6645                 }
6646
6647                 /* Display path name and status flags */
6648                 printf("%s: (0x%08x)", path, hus.hus_states);
6649
6650                 if (hus.hus_states & HS_RELEASED)
6651                         printf(" released");
6652                 if (hus.hus_states & HS_EXISTS)
6653                         printf(" exists");
6654                 if (hus.hus_states & HS_DIRTY)
6655                         printf(" dirty");
6656                 if (hus.hus_states & HS_ARCHIVED)
6657                         printf(" archived");
6658                 /* Display user-settable flags */
6659                 if (hus.hus_states & HS_NORELEASE)
6660                         printf(" never_release");
6661                 if (hus.hus_states & HS_NOARCHIVE)
6662                         printf(" never_archive");
6663                 if (hus.hus_states & HS_LOST)
6664                         printf(" lost_from_hsm");
6665
6666                 if (hus.hus_archive_id != 0)
6667                         printf(", archive_id:%d", hus.hus_archive_id);
6668                 printf("\n");
6669
6670         } while (++i < argc);
6671
6672         return 0;
6673 }
6674
6675 #define LFS_HSM_SET   0
6676 #define LFS_HSM_CLEAR 1
6677
6678 /**
6679  * Generic function to set or clear HSM flags.
6680  * Used by hsm_set and hsm_clear.
6681  *
6682  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
6683  */
6684 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
6685 {
6686         struct option long_opts[] = {
6687         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
6688         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
6689         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
6690         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
6691         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
6692         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
6693         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
6694         { .name = NULL } };
6695         char short_opts[] = "lraAdei:";
6696         __u64 mask = 0;
6697         int c, rc;
6698         char *path;
6699         __u32 archive_id = 0;
6700         char *end = NULL;
6701
6702         if (argc < 3)
6703                 return CMD_HELP;
6704
6705         while ((c = getopt_long(argc, argv, short_opts,
6706                                 long_opts, NULL)) != -1) {
6707                 switch (c) {
6708                 case 'l':
6709                         mask |= HS_LOST;
6710                         break;
6711                 case 'a':
6712                         mask |= HS_NOARCHIVE;
6713                         break;
6714                 case 'A':
6715                         mask |= HS_ARCHIVED;
6716                         break;
6717                 case 'r':
6718                         mask |= HS_NORELEASE;
6719                         break;
6720                 case 'd':
6721                         mask |= HS_DIRTY;
6722                         break;
6723                 case 'e':
6724                         mask |= HS_EXISTS;
6725                         break;
6726                 case 'i':
6727                         archive_id = strtol(optarg, &end, 10);
6728                         if (*end != '\0') {
6729                                 fprintf(stderr, "invalid archive_id: '%s'\n",
6730                                         end);
6731                                 return CMD_HELP;
6732                         }
6733                         break;
6734                 case '?':
6735                         return CMD_HELP;
6736                 default:
6737                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
6738                                 argv[0], argv[optind - 1]);
6739                         return CMD_HELP;
6740                 }
6741         }
6742
6743         /* User should have specified a flag */
6744         if (mask == 0)
6745                 return CMD_HELP;
6746
6747         while (optind < argc) {
6748
6749                 path = argv[optind];
6750
6751                 /* If mode == 0, this means we apply the mask. */
6752                 if (mode == LFS_HSM_SET)
6753                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
6754                 else
6755                         rc = llapi_hsm_state_set(path, 0, mask, 0);
6756
6757                 if (rc != 0) {
6758                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
6759                                 path, strerror(errno = -rc));
6760                         return rc;
6761                 }
6762                 optind++;
6763         }
6764
6765         return 0;
6766 }
6767
6768 static int lfs_hsm_action(int argc, char **argv)
6769 {
6770         int                              rc;
6771         int                              i = 1;
6772         char                            *path;
6773         struct hsm_current_action        hca;
6774         struct hsm_extent                he;
6775         enum hsm_user_action             hua;
6776         enum hsm_progress_states         hps;
6777
6778         if (argc < 2)
6779                 return CMD_HELP;
6780
6781         do {
6782                 path = argv[i];
6783
6784                 rc = llapi_hsm_current_action(path, &hca);
6785                 if (rc) {
6786                         fprintf(stderr, "can't get hsm action for %s: %s\n",
6787                                 path, strerror(errno = -rc));
6788                         return rc;
6789                 }
6790                 he = hca.hca_location;
6791                 hua = hca.hca_action;
6792                 hps = hca.hca_state;
6793
6794                 printf("%s: %s", path, hsm_user_action2name(hua));
6795
6796                 /* Skip file without action */
6797                 if (hca.hca_action == HUA_NONE) {
6798                         printf("\n");
6799                         continue;
6800                 }
6801
6802                 printf(" %s ", hsm_progress_state2name(hps));
6803
6804                 if ((hps == HPS_RUNNING) &&
6805                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
6806                         printf("(%llu bytes moved)\n",
6807                                (unsigned long long)he.length);
6808                 else if ((he.offset + he.length) == LUSTRE_EOF)
6809                         printf("(from %llu to EOF)\n",
6810                                (unsigned long long)he.offset);
6811                 else
6812                         printf("(from %llu to %llu)\n",
6813                                (unsigned long long)he.offset,
6814                                (unsigned long long)(he.offset + he.length));
6815
6816         } while (++i < argc);
6817
6818         return 0;
6819 }
6820
6821 static int lfs_hsm_set(int argc, char **argv)
6822 {
6823         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
6824 }
6825
6826 static int lfs_hsm_clear(int argc, char **argv)
6827 {
6828         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
6829 }
6830
6831 /**
6832  * Check file state and return its fid, to be used by lfs_hsm_request().
6833  *
6834  * \param[in]     file      Path to file to check
6835  * \param[in,out] fid       Pointer to allocated lu_fid struct.
6836  * \param[in,out] last_dev  Pointer to last device id used.
6837  *
6838  * \return 0 on success.
6839  */
6840 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
6841                                 dev_t *last_dev)
6842 {
6843         struct stat     st;
6844         int             rc;
6845
6846         rc = lstat(file, &st);
6847         if (rc) {
6848                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
6849                 return -errno;
6850         }
6851         /* Checking for regular file as archiving as posix copytool
6852          * rejects archiving files other than regular files
6853          */
6854         if (!S_ISREG(st.st_mode)) {
6855                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
6856                 return CMD_HELP;
6857         }
6858         /* A request should be ... */
6859         if (*last_dev != st.st_dev && *last_dev != 0) {
6860                 fprintf(stderr, "All files should be "
6861                         "on the same filesystem: %s\n", file);
6862                 return -EINVAL;
6863         }
6864         *last_dev = st.st_dev;
6865
6866         rc = llapi_path2fid(file, fid);
6867         if (rc) {
6868                 fprintf(stderr, "Cannot read FID of %s: %s\n",
6869                         file, strerror(-rc));
6870                 return rc;
6871         }
6872         return 0;
6873 }
6874
6875 /* Fill an HSM HUR item with a given file name.
6876  *
6877  * If mntpath is set, then the filename is actually a FID, and no
6878  * lookup on the filesystem will be performed.
6879  *
6880  * \param[in]  hur         the user request to fill
6881  * \param[in]  idx         index of the item inside the HUR to fill
6882  * \param[in]  mntpath     mountpoint of Lustre
6883  * \param[in]  fname       filename (if mtnpath is NULL)
6884  *                         or FID (if mntpath is set)
6885  * \param[in]  last_dev    pointer to last device id used
6886  *
6887  * \retval 0 on success
6888  * \retval CMD_HELP or a negative errno on error
6889  */
6890 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
6891                          const char *mntpath, const char *fname,
6892                          dev_t *last_dev)
6893 {
6894         struct hsm_user_item *hui = &hur->hur_user_item[idx];
6895         int rc;
6896
6897         hui->hui_extent.length = -1;
6898
6899         if (mntpath != NULL) {
6900                 if (*fname == '[')
6901                         fname++;
6902                 rc = sscanf(fname, SFID, RFID(&hui->hui_fid));
6903                 if (rc == 3) {
6904                         rc = 0;
6905                 } else {
6906                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
6907                                 fname);
6908                         rc = -EINVAL;
6909                 }
6910         } else {
6911                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
6912         }
6913
6914         if (rc == 0)
6915                 hur->hur_request.hr_itemcount++;
6916
6917         return rc;
6918 }
6919
6920 static int lfs_hsm_request(int argc, char **argv, int action)
6921 {
6922         struct option long_opts[] = {
6923         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
6924         { .val = 'D',   .name = "data",         .has_arg = required_argument },
6925         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
6926         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
6927         { .name = NULL } };
6928         dev_t                    last_dev = 0;
6929         char                     short_opts[] = "l:D:a:m:";
6930         struct hsm_user_request *hur, *oldhur;
6931         int                      c, i;
6932         size_t                   len;
6933         int                      nbfile;
6934         char                    *line = NULL;
6935         char                    *filelist = NULL;
6936         char                     fullpath[PATH_MAX];
6937         char                    *opaque = NULL;
6938         int                      opaque_len = 0;
6939         int                      archive_id = 0;
6940         FILE                    *fp;
6941         int                      nbfile_alloc = 0;
6942         char                    *some_file = NULL;
6943         char                    *mntpath = NULL;
6944         int                      rc;
6945
6946         if (argc < 2)
6947                 return CMD_HELP;
6948
6949         while ((c = getopt_long(argc, argv, short_opts,
6950                                 long_opts, NULL)) != -1) {
6951                 switch (c) {
6952                 case 'l':
6953                         filelist = optarg;
6954                         break;
6955                 case 'D':
6956                         opaque = optarg;
6957                         break;
6958                 case 'a':
6959                         if (action != HUA_ARCHIVE &&
6960                             action != HUA_REMOVE) {
6961                                 fprintf(stderr,
6962                                         "error: -a is supported only "
6963                                         "when archiving or removing\n");
6964                                 return CMD_HELP;
6965                         }
6966                         archive_id = atoi(optarg);
6967                         break;
6968                 case 'm':
6969                         if (some_file == NULL) {
6970                                 mntpath = optarg;
6971                                 some_file = strdup(optarg);
6972                         }
6973                         break;
6974                 case '?':
6975                         return CMD_HELP;
6976                 default:
6977                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
6978                                 argv[0], argv[optind - 1]);
6979                         return CMD_HELP;
6980                 }
6981         }
6982
6983         /* All remaining args are files, so we have at least nbfile */
6984         nbfile = argc - optind;
6985
6986         if ((nbfile == 0) && (filelist == NULL))
6987                 return CMD_HELP;
6988
6989         if (opaque != NULL)
6990                 opaque_len = strlen(opaque);
6991
6992         /* Alloc the request structure with enough place to store all files
6993          * from command line. */
6994         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
6995         if (hur == NULL) {
6996                 fprintf(stderr, "Cannot create the request: %s\n",
6997                         strerror(errno));
6998                 return errno;
6999         }
7000         nbfile_alloc = nbfile;
7001
7002         hur->hur_request.hr_action = action;
7003         hur->hur_request.hr_archive_id = archive_id;
7004         hur->hur_request.hr_flags = 0;
7005
7006         /* All remaining args are files, add them */
7007         if (nbfile != 0 && some_file == NULL)
7008                 some_file = strdup(argv[optind]);
7009
7010         for (i = 0; i < nbfile; i++) {
7011                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
7012                                    &last_dev);
7013                 if (rc)
7014                         goto out_free;
7015         }
7016
7017         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
7018
7019         /* If a filelist was specified, read the filelist from it. */
7020         if (filelist != NULL) {
7021                 fp = fopen(filelist, "r");
7022                 if (fp == NULL) {
7023                         fprintf(stderr, "Cannot read the file list %s: %s\n",
7024                                 filelist, strerror(errno));
7025                         rc = -errno;
7026                         goto out_free;
7027                 }
7028
7029                 while ((rc = getline(&line, &len, fp)) != -1) {
7030                         /* If allocated buffer was too small, get something
7031                          * larger */
7032                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
7033                                 ssize_t size;
7034
7035                                 nbfile_alloc = nbfile_alloc * 2 + 1;
7036                                 oldhur = hur;
7037                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
7038                                                                    opaque_len);
7039                                 if (hur == NULL) {
7040                                         fprintf(stderr, "hsm: cannot allocate "
7041                                                 "the request: %s\n",
7042                                                 strerror(errno));
7043                                         hur = oldhur;
7044                                         rc = -errno;
7045                                         fclose(fp);
7046                                         goto out_free;
7047                                 }
7048                                 size = hur_len(oldhur);
7049                                 if (size < 0) {
7050                                         fprintf(stderr, "hsm: cannot allocate "
7051                                                 "%u files + %u bytes data\n",
7052                                             oldhur->hur_request.hr_itemcount,
7053                                             oldhur->hur_request.hr_data_len);
7054                                         free(hur);
7055                                         hur = oldhur;
7056                                         rc = -E2BIG;
7057                                         fclose(fp);
7058                                         goto out_free;
7059                                 }
7060                                 memcpy(hur, oldhur, size);
7061                                 free(oldhur);
7062                         }
7063
7064                         /* Chop CR */
7065                         if (line[strlen(line) - 1] == '\n')
7066                                 line[strlen(line) - 1] = '\0';
7067
7068                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
7069                                            mntpath, line, &last_dev);
7070                         if (rc) {
7071                                 fclose(fp);
7072                                 goto out_free;
7073                         }
7074
7075                         if (some_file == NULL) {
7076                                 some_file = line;
7077                                 line = NULL;
7078                         }
7079                 }
7080
7081                 rc = fclose(fp);
7082                 free(line);
7083         }
7084
7085         /* If a --data was used, add it to the request */
7086         hur->hur_request.hr_data_len = opaque_len;
7087         if (opaque != NULL)
7088                 memcpy(hur_data(hur), opaque, opaque_len);
7089
7090         /* Send the HSM request */
7091         if (realpath(some_file, fullpath) == NULL) {
7092                 fprintf(stderr, "Could not find path '%s': %s\n",
7093                         some_file, strerror(errno));
7094         }
7095         rc = llapi_hsm_request(fullpath, hur);
7096         if (rc) {
7097                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
7098                         some_file, strerror(-rc));
7099                 goto out_free;
7100         }
7101
7102 out_free:
7103         free(some_file);
7104         free(hur);
7105         return rc;
7106 }
7107
7108 static int lfs_hsm_archive(int argc, char **argv)
7109 {
7110         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
7111 }
7112
7113 static int lfs_hsm_restore(int argc, char **argv)
7114 {
7115         return lfs_hsm_request(argc, argv, HUA_RESTORE);
7116 }
7117
7118 static int lfs_hsm_release(int argc, char **argv)
7119 {
7120         return lfs_hsm_request(argc, argv, HUA_RELEASE);
7121 }
7122
7123 static int lfs_hsm_remove(int argc, char **argv)
7124 {
7125         return lfs_hsm_request(argc, argv, HUA_REMOVE);
7126 }
7127
7128 static int lfs_hsm_cancel(int argc, char **argv)
7129 {
7130         return lfs_hsm_request(argc, argv, HUA_CANCEL);
7131 }
7132
7133 static int lfs_swap_layouts(int argc, char **argv)
7134 {
7135         if (argc != 3)
7136                 return CMD_HELP;
7137
7138         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
7139                                   SWAP_LAYOUTS_KEEP_MTIME |
7140                                   SWAP_LAYOUTS_KEEP_ATIME);
7141 }
7142
7143 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
7144
7145 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
7146
7147 int lfs_get_mode(const char *string)
7148 {
7149         enum lock_mode_user mode;
7150
7151         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
7152                 if (lock_mode_names[mode] == NULL)
7153                         continue;
7154                 if (strcmp(string, lock_mode_names[mode]) == 0)
7155                         return mode;
7156         }
7157
7158         return -EINVAL;
7159 }
7160
7161 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
7162 {
7163         enum lu_ladvise_type advice;
7164
7165         for (advice = 0;
7166              advice < ARRAY_SIZE(ladvise_names); advice++) {
7167                 if (ladvise_names[advice] == NULL)
7168                         continue;
7169                 if (strcmp(string, ladvise_names[advice]) == 0)
7170                         return advice;
7171         }
7172
7173         return LU_LADVISE_INVALID;
7174 }
7175
7176 static int lfs_ladvise(int argc, char **argv)
7177 {
7178         struct option long_opts[] = {
7179         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
7180         { .val = 'b',   .name = "background",   .has_arg = no_argument },
7181         { .val = 'e',   .name = "end",          .has_arg = required_argument },
7182         { .val = 'l',   .name = "length",       .has_arg = required_argument },
7183         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
7184         { .val = 's',   .name = "start",        .has_arg = required_argument },
7185         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
7186         { .name = NULL } };
7187         char                     short_opts[] = "a:be:l:m:s:u";
7188         int                      c;
7189         int                      rc = 0;
7190         const char              *path;
7191         int                      fd;
7192         struct llapi_lu_ladvise  advice;
7193         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
7194         unsigned long long       start = 0;
7195         unsigned long long       end = LUSTRE_EOF;
7196         unsigned long long       length = 0;
7197         unsigned long long       size_units;
7198         unsigned long long       flags = 0;
7199         int                      mode = 0;
7200
7201         optind = 0;
7202         while ((c = getopt_long(argc, argv, short_opts,
7203                                 long_opts, NULL)) != -1) {
7204                 switch (c) {
7205                 case 'a':
7206                         advice_type = lfs_get_ladvice(optarg);
7207                         if (advice_type == LU_LADVISE_INVALID) {
7208                                 fprintf(stderr, "%s: invalid advice type "
7209                                         "'%s'\n", argv[0], optarg);
7210                                 fprintf(stderr, "Valid types:");
7211
7212                                 for (advice_type = 0;
7213                                      advice_type < ARRAY_SIZE(ladvise_names);
7214                                      advice_type++) {
7215                                         if (ladvise_names[advice_type] == NULL)
7216                                                 continue;
7217                                         fprintf(stderr, " %s",
7218                                                 ladvise_names[advice_type]);
7219                                 }
7220                                 fprintf(stderr, "\n");
7221
7222                                 return CMD_HELP;
7223                         }
7224                         break;
7225                 case 'b':
7226                         flags |= LF_ASYNC;
7227                         break;
7228                 case 'u':
7229                         flags |= LF_UNSET;
7230                         break;
7231                 case 'e':
7232                         size_units = 1;
7233                         rc = llapi_parse_size(optarg, &end,
7234                                               &size_units, 0);
7235                         if (rc) {
7236                                 fprintf(stderr, "%s: bad end offset '%s'\n",
7237                                         argv[0], optarg);
7238                                 return CMD_HELP;
7239                         }
7240                         break;
7241                 case 's':
7242                         size_units = 1;
7243                         rc = llapi_parse_size(optarg, &start,
7244                                               &size_units, 0);
7245                         if (rc) {
7246                                 fprintf(stderr, "%s: bad start offset "
7247                                         "'%s'\n", argv[0], optarg);
7248                                 return CMD_HELP;
7249                         }
7250                         break;
7251                 case 'l':
7252                         size_units = 1;
7253                         rc = llapi_parse_size(optarg, &length,
7254                                               &size_units, 0);
7255                         if (rc) {
7256                                 fprintf(stderr, "%s: bad length '%s'\n",
7257                                         argv[0], optarg);
7258                                 return CMD_HELP;
7259                         }
7260                         break;
7261                 case 'm':
7262                         mode = lfs_get_mode(optarg);
7263                         if (mode < 0) {
7264                                 fprintf(stderr, "%s: bad mode '%s', valid "
7265                                                  "modes are READ or WRITE\n",
7266                                         argv[0], optarg);
7267                                 return CMD_HELP;
7268                         }
7269                         break;
7270                 case '?':
7271                         return CMD_HELP;
7272                 default:
7273                         fprintf(stderr, "%s: option '%s' unrecognized\n",
7274                                 argv[0], argv[optind - 1]);
7275                         return CMD_HELP;
7276                 }
7277         }
7278
7279         if (advice_type == LU_LADVISE_INVALID) {
7280                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
7281                 fprintf(stderr, "Valid types:");
7282                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
7283                      advice_type++) {
7284                         if (ladvise_names[advice_type] == NULL)
7285                                 continue;
7286                         fprintf(stderr, " %s", ladvise_names[advice_type]);
7287                 }
7288                 fprintf(stderr, "\n");
7289                 return CMD_HELP;
7290         }
7291
7292         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
7293                 fprintf(stderr, "%s: Lock no expand advice is a per file "
7294                                  "descriptor advice, so when called from lfs, "
7295                                  "it does nothing.\n", argv[0]);
7296                 return CMD_HELP;
7297         }
7298
7299         if (argc <= optind) {
7300                 fprintf(stderr, "%s: please give one or more file names\n",
7301                         argv[0]);
7302                 return CMD_HELP;
7303         }
7304
7305         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
7306                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
7307                         argv[0]);
7308                 return CMD_HELP;
7309         }
7310
7311         if (end == LUSTRE_EOF && length != 0)
7312                 end = start + length;
7313
7314         if (end <= start) {
7315                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
7316                         argv[0], start, end);
7317                 return CMD_HELP;
7318         }
7319
7320         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
7321                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
7322                         argv[0]);
7323                 return CMD_HELP;
7324         }
7325
7326         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
7327                 fprintf(stderr, "%s: mode is required with lockahead\n",
7328                         argv[0]);
7329                 return CMD_HELP;
7330         }
7331
7332         while (optind < argc) {
7333                 int rc2;
7334
7335                 path = argv[optind++];
7336
7337                 fd = open(path, O_RDONLY);
7338                 if (fd < 0) {
7339                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
7340                                 argv[0], path, strerror(errno));
7341                         rc2 = -errno;
7342                         goto next;
7343                 }
7344
7345                 advice.lla_start = start;
7346                 advice.lla_end = end;
7347                 advice.lla_advice = advice_type;
7348                 advice.lla_value1 = 0;
7349                 advice.lla_value2 = 0;
7350                 advice.lla_value3 = 0;
7351                 advice.lla_value4 = 0;
7352                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
7353                         advice.lla_lockahead_mode = mode;
7354                         advice.lla_peradvice_flags = flags;
7355                 }
7356
7357                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
7358                 close(fd);
7359                 if (rc2 < 0) {
7360                         fprintf(stderr, "%s: cannot give advice '%s' to file "
7361                                 "'%s': %s\n", argv[0],
7362                                 ladvise_names[advice_type],
7363                                 path, strerror(errno));
7364
7365                         goto next;
7366                 }
7367
7368 next:
7369                 if (rc == 0 && rc2 < 0)
7370                         rc = rc2;
7371         }
7372         return rc;
7373 }
7374
7375 /** The input string contains a comma delimited list of component ids and
7376  * ranges, for example "1,2-4,7".
7377  */
7378 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
7379 {
7380         bool end_of_loop = false;
7381         char *ptr = NULL;
7382         int nr = 0;
7383         int rc;
7384
7385         if (arg == NULL)
7386                 return -EINVAL;
7387
7388         while (!end_of_loop) {
7389                 int start_index;
7390                 int end_index;
7391                 int i;
7392                 char *endptr = NULL;
7393
7394                 rc = -EINVAL;
7395                 ptr = strchrnul(arg, ',');
7396                 end_of_loop = *ptr == '\0';
7397                 *ptr = '\0';
7398
7399                 start_index = strtol(arg, &endptr, 0);
7400                 if (endptr == arg) /* no data at all */
7401                         break;
7402                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
7403                         break;
7404                 if (start_index < 0)
7405                         break;
7406
7407                 end_index = start_index;
7408                 if (*endptr == '-') {
7409                         end_index = strtol(endptr + 1, &endptr, 0);
7410                         if (*endptr != '\0')
7411                                 break;
7412                         if (end_index < start_index)
7413                                 break;
7414                 }
7415
7416                 for (i = start_index; i <= end_index && size > 0; i++) {
7417                         int j;
7418
7419                         /* remove duplicate */
7420                         for (j = 0; j < nr; j++) {
7421                                 if (ids[j] == i)
7422                                         break;
7423                         }
7424                         if (j == nr) { /* no duplicate */
7425                                 ids[nr++] = i;
7426                                 --size;
7427                         }
7428                 }
7429
7430                 if (size == 0 && i < end_index)
7431                         break;
7432
7433                 *ptr = ',';
7434                 arg = ++ptr;
7435                 rc = 0;
7436         }
7437         if (!end_of_loop && ptr != NULL)
7438                 *ptr = ',';
7439
7440         return rc < 0 ? rc : nr;
7441 }
7442
7443 /**
7444  * struct verify_mirror_id - Mirror id to be verified.
7445  * @mirror_id:   A specified mirror id.
7446  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
7447  */
7448 struct verify_mirror_id {
7449         __u16 mirror_id;
7450         bool is_valid_id;
7451 };
7452
7453 /**
7454  * compare_mirror_ids() - Compare mirror ids.
7455  * @layout: Mirror component list.
7456  * @cbdata: Callback data in verify_mirror_id structure.
7457  *
7458  * This is a callback function called by llapi_layout_comp_iterate()
7459  * to compare the specified mirror id with the one in the current
7460  * component of @layout. If they are the same, then the specified
7461  * mirror id is valid.
7462  *
7463  * Return: a negative error code on failure or
7464  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
7465  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
7466  */
7467 static inline
7468 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
7469 {
7470         struct verify_mirror_id *mirror_id_cbdata =
7471                                  (struct verify_mirror_id *)cbdata;
7472         uint32_t mirror_id;
7473         int rc = 0;
7474
7475         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
7476         if (rc < 0) {
7477                 rc = -errno;
7478                 fprintf(stderr,
7479                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
7480                         progname, strerror(errno));
7481                 return rc;
7482         }
7483
7484         if (mirror_id_cbdata->mirror_id == mirror_id) {
7485                 mirror_id_cbdata->is_valid_id = true;
7486                 return LLAPI_LAYOUT_ITER_STOP;
7487         }
7488
7489         return LLAPI_LAYOUT_ITER_CONT;
7490 }
7491
7492 /**
7493  * verify_mirror_ids() - Verify specified mirror ids.
7494  * @fname:      Mirrored file name.
7495  * @mirror_ids: Specified mirror ids to be verified.
7496  * @ids_nr:     Number of specified mirror ids.
7497  *
7498  * This function verifies that specified @mirror_ids are valid
7499  * in the mirrored file @fname.
7500  *
7501  * Return: 0 on success or a negative error code on failure.
7502  */
7503 static inline
7504 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
7505 {
7506         struct llapi_layout *layout = NULL;
7507         struct verify_mirror_id mirror_id_cbdata = { 0 };
7508         struct stat stbuf;
7509         uint32_t flr_state;
7510         int i;
7511         int fd;
7512         int rc = 0;
7513         int rc2 = 0;
7514
7515         if (ids_nr <= 0)
7516                 return -EINVAL;
7517
7518         if (stat(fname, &stbuf) < 0) {
7519                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
7520                         progname, fname, strerror(errno));
7521                 rc = -errno;
7522                 goto error;
7523         }
7524
7525         if (!S_ISREG(stbuf.st_mode)) {
7526                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
7527                         progname, fname);
7528                 rc = -EINVAL;
7529                 goto error;
7530         }
7531
7532         fd = open(fname, O_DIRECT | O_RDONLY);
7533         if (fd < 0) {
7534                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
7535                         progname, fname, strerror(errno));
7536                 rc = -errno;
7537                 goto error;
7538         }
7539
7540         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
7541         if (rc < 0) {
7542                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
7543                         progname, fname, strerror(errno));
7544                 goto close_fd;
7545         }
7546
7547         layout = llapi_layout_get_by_fd(fd, 0);
7548         if (layout == NULL) {
7549                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
7550                         progname, fname, strerror(errno));
7551                 rc = -errno;
7552                 llapi_lease_release(fd);
7553                 goto close_fd;
7554         }
7555
7556         rc = llapi_layout_flags_get(layout, &flr_state);
7557         if (rc < 0) {
7558                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
7559                         progname, fname, strerror(errno));
7560                 rc = -errno;
7561                 goto free_layout;
7562         }
7563
7564         flr_state &= LCM_FL_FLR_MASK;
7565         switch (flr_state) {
7566         case LCM_FL_NONE:
7567                 rc = -EINVAL;
7568                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
7569                         progname, fname, llapi_layout_flags_string(flr_state));
7570                 goto free_layout;
7571         default:
7572                 break;
7573         }
7574
7575         rc2 = 0;
7576         for (i = 0; i < ids_nr; i++) {
7577                 mirror_id_cbdata.mirror_id = mirror_ids[i];
7578                 mirror_id_cbdata.is_valid_id = false;
7579
7580                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
7581                                                &mirror_id_cbdata);
7582                 if (rc < 0) {
7583                         rc = -errno;
7584                         fprintf(stderr,
7585                                 "%s: '%s' failed to verify mirror id: %u.\n",
7586                                 progname, fname, mirror_ids[i]);
7587                         goto free_layout;
7588                 }
7589
7590                 if (!mirror_id_cbdata.is_valid_id) {
7591                         rc2 = -EINVAL;
7592                         fprintf(stderr,
7593                                 "%s: '%s' invalid specified mirror id: %u.\n",
7594                                 progname, fname, mirror_ids[i]);
7595                 }
7596         }
7597         rc = rc2;
7598
7599 free_layout:
7600         llapi_layout_free(layout);
7601         llapi_lease_release(fd);
7602 close_fd:
7603         close(fd);
7604 error:
7605         return rc;
7606 }
7607
7608 static inline
7609 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
7610                            __u16 *mirror_ids, int ids_nr)
7611 {
7612         struct llapi_resync_comp comp_array[1024] = { { 0 } };
7613         struct llapi_layout *layout;
7614         struct stat stbuf;
7615         uint32_t flr_state;
7616         int comp_size = 0;
7617         int idx;
7618         int fd;
7619         int rc;
7620
7621         if (stat(fname, &stbuf) < 0) {
7622                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
7623                         progname, fname, strerror(errno));
7624                 rc = -errno;
7625                 goto error;
7626         }
7627         if (!S_ISREG(stbuf.st_mode)) {
7628                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
7629                         progname, fname);
7630                 rc = -EINVAL;
7631                 goto error;
7632         }
7633
7634         fd = open(fname, O_DIRECT | O_RDWR);
7635         if (fd < 0) {
7636                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
7637                         progname, fname, strerror(errno));
7638                 rc = -errno;
7639                 goto error;
7640         }
7641
7642         layout = llapi_layout_get_by_fd(fd, 0);
7643         if (layout == NULL) {
7644                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
7645                         progname, fname, strerror(errno));
7646                 rc = -errno;
7647                 goto close_fd;
7648         }
7649
7650         rc = llapi_layout_flags_get(layout, &flr_state);
7651         if (rc) {
7652                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
7653                         progname, fname, strerror(errno));
7654                 rc = -errno;
7655                 goto free_layout;
7656         }
7657
7658         flr_state &= LCM_FL_FLR_MASK;
7659         if (flr_state == LCM_FL_NONE) {
7660                 rc = -EINVAL;
7661                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
7662                         progname, fname);
7663                 goto free_layout;
7664         }
7665
7666         /* get stale component info */
7667         comp_size = llapi_mirror_find_stale(layout, comp_array,
7668                                             ARRAY_SIZE(comp_array),
7669                                             mirror_ids, ids_nr);
7670         if (comp_size <= 0) {
7671                 rc = comp_size;
7672                 goto free_layout;
7673         }
7674
7675         ioc->lil_mode = LL_LEASE_WRLCK;
7676         ioc->lil_flags = LL_LEASE_RESYNC;
7677         rc = llapi_lease_set(fd, ioc);
7678         if (rc < 0) {
7679                 if (rc == -EALREADY)
7680                         rc = 0;
7681                 else
7682                         fprintf(stderr,
7683                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
7684                                 progname, fname, strerror(errno));
7685                 goto free_layout;
7686         }
7687
7688         idx = 0;
7689         while (idx < comp_size) {
7690                 ssize_t result;
7691                 uint64_t end;
7692                 __u16 mirror_id;
7693                 int i;
7694
7695                 rc = llapi_lease_check(fd);
7696                 if (rc != LL_LEASE_WRLCK) {
7697                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
7698                                 progname, fname);
7699                         goto free_layout;
7700                 }
7701
7702                 mirror_id = comp_array[idx].lrc_mirror_id;
7703                 end = comp_array[idx].lrc_end;
7704
7705                 /* try to combine adjacent component */
7706                 for (i = idx + 1; i < comp_size; i++) {
7707                         if (mirror_id != comp_array[i].lrc_mirror_id ||
7708                             end != comp_array[i].lrc_start)
7709                                 break;
7710                         end = comp_array[i].lrc_end;
7711                 }
7712
7713                 result = llapi_mirror_resync_one(fd, layout, mirror_id,
7714                                                  comp_array[idx].lrc_start,
7715                                                  end);
7716                 if (result < 0) {
7717                         fprintf(stderr, "%s: '%s' llapi_mirror_resync_one: "
7718                                 "%ld.\n", progname, fname, result);
7719                         rc = result;
7720                         goto unlock;
7721                 } else if (result > 0) {
7722                         int j;
7723
7724                         /* mark synced components */
7725                         for (j = idx; j < i; j++)
7726                                 comp_array[j].lrc_synced = true;
7727                 }
7728
7729                 idx = i;
7730         }
7731
7732 unlock:
7733         /* prepare ioc for lease put */
7734         ioc->lil_mode = LL_LEASE_UNLCK;
7735         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
7736         ioc->lil_count = 0;
7737         for (idx = 0; idx < comp_size; idx++) {
7738                 if (comp_array[idx].lrc_synced) {
7739                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
7740                         ioc->lil_count++;
7741                 }
7742         }
7743
7744         rc = llapi_lease_set(fd, ioc);
7745         if (rc <= 0) {
7746                 if (rc == 0) /* lost lease lock */
7747                         rc = -EBUSY;
7748                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
7749                         progname, fname, strerror(errno));
7750                 goto free_layout;
7751         }
7752         /**
7753          * llapi_lease_set returns lease mode when it request to unlock
7754          * the lease lock
7755          */
7756         rc = 0;
7757
7758 free_layout:
7759         llapi_layout_free(layout);
7760 close_fd:
7761         close(fd);
7762 error:
7763         return rc;
7764 }
7765
7766 static inline int lfs_mirror_resync(int argc, char **argv)
7767 {
7768         struct ll_ioc_lease *ioc = NULL;
7769         __u16 mirror_ids[128] = { 0 };
7770         int ids_nr = 0;
7771         int c;
7772         int rc = 0;
7773
7774         struct option long_opts[] = {
7775         { .val = 'o',   .name = "only",         .has_arg = required_argument },
7776         { .name = NULL } };
7777
7778         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
7779                 switch (c) {
7780                 case 'o':
7781                         rc = parse_mirror_ids(mirror_ids,
7782                                         sizeof(mirror_ids) / sizeof(__u16),
7783                                         optarg);
7784                         if (rc < 0) {
7785                                 fprintf(stderr,
7786                                         "%s: bad mirror ids '%s'.\n",
7787                                         argv[0], optarg);
7788                                 goto error;
7789                         }
7790                         ids_nr = rc;
7791                         break;
7792                 default:
7793                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
7794                                 argv[0], argv[optind - 1]);
7795                         rc = -EINVAL;
7796                         goto error;
7797                 }
7798         }
7799
7800         if (argc == optind) {
7801                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
7802                 rc = CMD_HELP;
7803                 goto error;
7804         }
7805
7806         if (ids_nr > 0 && argc > optind + 1) {
7807                 fprintf(stderr,
7808                     "%s: option '--only' cannot be used upon multiple files.\n",
7809                         argv[0]);
7810                 rc = CMD_HELP;
7811                 goto error;
7812
7813         }
7814
7815         if (ids_nr > 0) {
7816                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
7817                 if (rc < 0)
7818                         goto error;
7819         }
7820
7821         /* set the lease on the file */
7822         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
7823         if (ioc == NULL) {
7824                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
7825                         argv[0], strerror(errno));
7826                 rc = -errno;
7827                 goto error;
7828         }
7829
7830         for (; optind < argc; optind++) {
7831                 rc = lfs_mirror_resync_file(argv[optind], ioc,
7832                                             mirror_ids, ids_nr);
7833                 /* ignore previous file's error, continue with next file */
7834
7835                 /* reset ioc */
7836                 memset(ioc, 0, sizeof(__u32) * 4096);
7837         }
7838
7839         free(ioc);
7840 error:
7841         return rc;
7842 }
7843
7844 /**
7845  * struct verify_chunk - Mirror chunk to be verified.
7846  * @chunk:        [start, end) of the chunk.
7847  * @mirror_count: Number of mirror ids in @mirror_id array.
7848  * @mirror_id:    Array of valid mirror ids that cover the chunk.
7849  */
7850 struct verify_chunk {
7851         struct lu_extent chunk;
7852         unsigned int mirror_count;
7853         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
7854 };
7855
7856 /**
7857  * print_chunks() - Print chunk information.
7858  * @fname:       Mirrored file name.
7859  * @chunks:      Array of chunks.
7860  * @chunk_count: Number of chunks in @chunks array.
7861  *
7862  * This function prints [start, end) of each chunk in @chunks
7863  * for mirrored file @fname, and also prints the valid mirror ids
7864  * that cover the chunk.
7865  *
7866  * Return: void.
7867  */
7868 static inline
7869 void print_chunks(const char *fname, struct verify_chunk *chunks,
7870                   int chunk_count)
7871 {
7872         int i;
7873         int j;
7874
7875         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
7876         for (i = 0; i < chunk_count; i++) {
7877                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
7878
7879                 if (chunks[i].mirror_count == 0)
7880                         fprintf(stdout, "\t[");
7881                 else {
7882                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
7883                         for (j = 1; j < chunks[i].mirror_count; j++)
7884                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
7885                 }
7886                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
7887         }
7888         fprintf(stdout, "\n");
7889 }
7890
7891 /**
7892  * print_checksums() - Print CRC-32 checksum values.
7893  * @chunk: A chunk and its corresponding valid mirror ids.
7894  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
7895  *
7896  * This function prints CRC-32 checksum values on @chunk for
7897  * each valid mirror that covers it.
7898  *
7899  * Return: void.
7900  */
7901 static inline
7902 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
7903 {
7904         int i;
7905
7906         fprintf(stdout,
7907                 "CRC-32 checksum value for chunk "DEXT":\n",
7908                 PEXT(&chunk->chunk));
7909         for (i = 0; i < chunk->mirror_count; i++)
7910                 fprintf(stdout, "Mirror %u:\t%#lx\n",
7911                         chunk->mirror_id[i], crc[i]);
7912         fprintf(stdout, "\n");
7913 }
7914
7915 /**
7916  * filter_mirror_id() - Filter specified mirror ids.
7917  * @chunks:      Array of chunks.
7918  * @chunk_count: Number of chunks in @chunks array.
7919  * @mirror_ids:  Specified mirror ids to be verified.
7920  * @ids_nr:      Number of specified mirror ids.
7921  *
7922  * This function scans valid mirror ids that cover each chunk in @chunks
7923  * and filters specified mirror ids.
7924  *
7925  * Return: void.
7926  */
7927 static inline
7928 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
7929                       __u16 *mirror_ids, int ids_nr)
7930 {
7931         int i;
7932         int j;
7933         int k;
7934         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
7935         unsigned int valid_count = 0;
7936
7937         for (i = 0; i < chunk_count; i++) {
7938                 if (chunks[i].mirror_count == 0)
7939                         continue;
7940
7941                 valid_count = 0;
7942                 for (j = 0; j < ids_nr; j++) {
7943                         for (k = 0; k < chunks[i].mirror_count; k++) {
7944                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
7945                                         valid_id[valid_count] = mirror_ids[j];
7946                                         valid_count++;
7947                                         break;
7948                                 }
7949                         }
7950                 }
7951
7952                 memcpy(chunks[i].mirror_id, valid_id,
7953                        sizeof(__u16) * valid_count);
7954                 chunks[i].mirror_count = valid_count;
7955         }
7956 }
7957
7958 /**
7959  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
7960  * @layout:      Mirror component list.
7961  * @chunks:      Array of chunks.
7962  * @chunks_size: Array size of @chunks.
7963  *
7964  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
7965  * to find out chunk segments and store them in @chunks array.
7966  *
7967  * The @mirror_id array in each element of @chunks will store the valid
7968  * mirror ids that cover the chunk. If a mirror component covering the
7969  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
7970  * will not be stored into the @mirror_id array, and the chunk for that
7971  * mirror will not be verified.
7972  *
7973  * The @mirror_count in each element of @chunks will store the number of
7974  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
7975  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
7976  * indicates the chunk is valid in only one mirror. In both cases, the
7977  * chunk will not be verified.
7978  *
7979  * Here is an example:
7980  *
7981  *  0      1M     2M     3M     4M           EOF
7982  *  +------+-------------+--------------------+
7983  *  |      |             |      S             |       mirror1
7984  *  +------+------+------+------+-------------+
7985  *  |             |   S  |   S  |             |       mirror2
7986  *  +-------------+------+------+-------------+
7987  *
7988  * prepared @chunks array will contain 5 elements:
7989  * (([0, 1M), [1, 2], 2),
7990  *  ([1M, 2M), [1, 2], 2),
7991  *  ([2M, 3M), [1], 1),
7992  *  ([3M, 4M], [], 0),
7993  *  ([4M, EOF), [2], 1))
7994  *
7995  * Return: the actual array size of @chunks on success
7996  *         or a negative error code on failure.
7997  */
7998 static inline
7999 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
8000                              struct verify_chunk *chunks,
8001                              size_t chunks_size)
8002 {
8003         uint64_t start;
8004         uint64_t end;
8005         uint32_t mirror_id;
8006         uint32_t flags;
8007         int idx = 0;
8008         int i = 0;
8009         int rc = 0;
8010
8011         memset(chunks, 0, sizeof(*chunks) * chunks_size);
8012
8013         while (1) {
8014                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
8015                 if (rc < 0) {
8016                         fprintf(stderr,
8017                                 "%s: move to the first layout component: %s.\n",
8018                                 progname, strerror(errno));
8019                         goto error;
8020                 }
8021
8022                 i = 0;
8023                 rc = 0;
8024                 chunks[idx].chunk.e_end = LUSTRE_EOF;
8025                 while (rc == 0) {
8026                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
8027                         if (rc < 0) {
8028                                 fprintf(stderr,
8029                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
8030                                         progname, strerror(errno));
8031                                 goto error;
8032                         }
8033
8034                         if (start > chunks[idx].chunk.e_start ||
8035                             end <= chunks[idx].chunk.e_start)
8036                                 goto next;
8037
8038                         if (end < chunks[idx].chunk.e_end)
8039                                 chunks[idx].chunk.e_end = end;
8040
8041                         rc = llapi_layout_comp_flags_get(layout, &flags);
8042                         if (rc < 0) {
8043                                 fprintf(stderr,
8044                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
8045                                         progname, strerror(errno));
8046                                 goto error;
8047                         }
8048
8049                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
8050                                 goto next;
8051
8052                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
8053                         if (rc < 0) {
8054                                 fprintf(stderr,
8055                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
8056                                         progname, strerror(errno));
8057                                 goto error;
8058                         }
8059
8060                         chunks[idx].mirror_id[i] = mirror_id;
8061                         i++;
8062                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
8063                                 fprintf(stderr,
8064                                         "%s: mirror_id array is too small.\n",
8065                                         progname);
8066                                 rc = -EINVAL;
8067                                 goto error;
8068                         }
8069
8070                 next:
8071                         rc = llapi_layout_comp_use(layout,
8072                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
8073                         if (rc < 0) {
8074                                 fprintf(stderr,
8075                                         "%s: move to the next layout component: %s.\n",
8076                                         progname, strerror(errno));
8077                                 goto error;
8078                         }
8079                 } /* loop through all components */
8080
8081                 chunks[idx].mirror_count = i;
8082
8083                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
8084                         break;
8085
8086                 idx++;
8087                 if (idx >= chunks_size) {
8088                         fprintf(stderr, "%s: chunks array is too small.\n",
8089                                 progname);
8090                         rc = -EINVAL;
8091                         goto error;
8092                 }
8093
8094                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
8095         }
8096
8097 error:
8098         return rc < 0 ? rc : idx + 1;
8099 }
8100
8101 /**
8102  * lfs_mirror_verify_chunk() - Verify a chunk.
8103  * @fd:        File descriptor of the mirrored file.
8104  * @file_size: Size of the mirrored file.
8105  * @chunk:     A chunk and its corresponding valid mirror ids.
8106  * @verbose:   Verbose mode.
8107  *
8108  * This function verifies a @chunk contains exactly the same data
8109  * ammong the mirrors that cover it.
8110  *
8111  * If @verbose is specified, then the function will print where the
8112  * differences are if the data do not match. Otherwise, it will
8113  * just return an error in that case.
8114  *
8115  * Return: 0 on success or a negative error code on failure.
8116  */
8117 static inline
8118 int lfs_mirror_verify_chunk(int fd, size_t file_size,
8119                             struct verify_chunk *chunk, int verbose)
8120 {
8121         const size_t buflen = 4 * 1024 * 1024; /* 4M */
8122         void *buf;
8123         size_t page_size = sysconf(_SC_PAGESIZE);
8124         ssize_t bytes_read;
8125         ssize_t bytes_done;
8126         size_t count;
8127         off_t pos;
8128         unsigned long crc;
8129         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
8130         int i;
8131         int rc = 0;
8132
8133         if (file_size == 0)
8134                 return 0;
8135
8136         rc = posix_memalign(&buf, page_size, buflen);
8137         if (rc) /* error code is returned directly */
8138                 return -rc;
8139
8140         if (verbose > 1) {
8141                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
8142                         PEXT(&chunk->chunk));
8143                 for (i = 0; i < chunk->mirror_count; i++)
8144                         fprintf(stdout, " %u", chunk->mirror_id[i]);
8145                 fprintf(stdout, "\n");
8146         }
8147
8148         bytes_done = 0;
8149         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
8150         pos = chunk->chunk.e_start;
8151         while (bytes_done < count) {
8152                 /* compute initial CRC-32 checksum */
8153                 crc = crc32(0L, Z_NULL, 0);
8154                 memset(crc_array, 0, sizeof(crc_array));
8155
8156                 bytes_read = 0;
8157                 for (i = 0; i < chunk->mirror_count; i++) {
8158                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
8159                                                        buf, buflen, pos);
8160                         if (bytes_read < 0) {
8161                                 rc = bytes_read;
8162                                 fprintf(stderr,
8163                                         "%s: failed to read data from mirror %u: %s.\n",
8164                                         progname, chunk->mirror_id[i],
8165                                         strerror(-rc));
8166                                 goto error;
8167                         }
8168
8169                         /* compute new CRC-32 checksum */
8170                         crc_array[i] = crc32(crc, buf, bytes_read);
8171                 }
8172
8173                 if (verbose)
8174                         print_checksums(chunk, crc_array);
8175
8176                 /* compare CRC-32 checksum values */
8177                 for (i = 1; i < chunk->mirror_count; i++) {
8178                         if (crc_array[i] != crc_array[0]) {
8179                                 rc = -EINVAL;
8180                                 if (!verbose)
8181                                         goto error;
8182
8183                                 fprintf(stderr,
8184                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
8185                                         progname, PEXT(&chunk->chunk),
8186                                         chunk->mirror_id[0],
8187                                         chunk->mirror_id[i]);
8188                         }
8189                 }
8190
8191                 pos += bytes_read;
8192                 bytes_done += bytes_read;
8193         }
8194
8195         if (verbose > 1 && rc == 0) {
8196                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
8197                         PEXT(&chunk->chunk));
8198                 for (i = 0; i < chunk->mirror_count; i++)
8199                         fprintf(stdout, " %u", chunk->mirror_id[i]);
8200                 fprintf(stdout, " PASS\n\n");
8201         }
8202
8203 error:
8204         free(buf);
8205         return rc;
8206 }
8207
8208 /**
8209  * lfs_mirror_verify_file() - Verify a mirrored file.
8210  * @fname:      Mirrored file name.
8211  * @mirror_ids: Specified mirror ids to be verified.
8212  * @ids_nr:     Number of specified mirror ids.
8213  * @verbose:    Verbose mode.
8214  *
8215  * This function verifies that each SYNC mirror of a mirrored file
8216  * specified by @fname contains exactly the same data.
8217  *
8218  * If @mirror_ids is specified, then the function will verify the
8219  * mirrors specified by @mirror_ids contain exactly the same data.
8220  *
8221  * If @verbose is specified, then the function will print where the
8222  * differences are if the data do not match. Otherwise, it will
8223  * just return an error in that case.
8224  *
8225  * Return: 0 on success or a negative error code on failure.
8226  */
8227 static inline
8228 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
8229                            int verbose)
8230 {
8231         struct verify_chunk chunks_array[1024] = { };
8232         struct llapi_layout *layout = NULL;
8233         struct stat stbuf;
8234         uint32_t flr_state;
8235         int fd;
8236         int chunk_count = 0;
8237         int idx = 0;
8238         int rc = 0;
8239         int rc1 = 0;
8240         int rc2 = 0;
8241
8242         if (stat(fname, &stbuf) < 0) {
8243                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8244                         progname, fname, strerror(errno));
8245                 rc = -errno;
8246                 goto error;
8247         }
8248
8249         if (!S_ISREG(stbuf.st_mode)) {
8250                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8251                         progname, fname);
8252                 rc = -EINVAL;
8253                 goto error;
8254         }
8255
8256         if (stbuf.st_size == 0) {
8257                 if (verbose)
8258                         fprintf(stdout, "%s: '%s' file size is 0.\n",
8259                                 progname, fname);
8260                 rc = 0;
8261                 goto error;
8262         }
8263
8264         fd = open(fname, O_DIRECT | O_RDONLY);
8265         if (fd < 0) {
8266                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8267                         progname, fname, strerror(errno));
8268                 rc = -errno;
8269                 goto error;
8270         }
8271
8272         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
8273         if (rc < 0) {
8274                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
8275                         progname, fname, strerror(errno));
8276                 goto close_fd;
8277         }
8278
8279         layout = llapi_layout_get_by_fd(fd, 0);
8280         if (layout == NULL) {
8281                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8282                         progname, fname, strerror(errno));
8283                 rc = -errno;
8284                 llapi_lease_release(fd);
8285                 goto close_fd;
8286         }
8287
8288         rc = llapi_layout_flags_get(layout, &flr_state);
8289         if (rc < 0) {
8290                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8291                         progname, fname, strerror(errno));
8292                 rc = -errno;
8293                 goto free_layout;
8294         }
8295
8296         flr_state &= LCM_FL_FLR_MASK;
8297         switch (flr_state) {
8298         case LCM_FL_NONE:
8299                 rc = -EINVAL;
8300                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
8301                         progname, fname, llapi_layout_flags_string(flr_state));
8302                 goto free_layout;
8303         default:
8304                 break;
8305         }
8306
8307         /* find out mirror chunks to be verified */
8308         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
8309                                                ARRAY_SIZE(chunks_array));
8310         if (chunk_count < 0) {
8311                 rc = chunk_count;
8312                 goto free_layout;
8313         }
8314
8315         if (ids_nr > 0)
8316                 /* filter specified mirror ids */
8317                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
8318
8319         if (verbose > 2)
8320                 print_chunks(fname, chunks_array, chunk_count);
8321
8322         for (idx = 0; idx < chunk_count; idx++) {
8323                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
8324                         if (verbose)
8325                                 fprintf(stdout,
8326                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
8327                                         progname, fname,
8328                                         PEXT(&chunks_array[idx].chunk),
8329                                         (unsigned long long)stbuf.st_size);
8330                         break;
8331                 }
8332
8333                 if (chunks_array[idx].mirror_count == 0) {
8334                         fprintf(stderr,
8335                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
8336                                 progname, fname,
8337                                 PEXT(&chunks_array[idx].chunk));
8338                         if (verbose) {
8339                                 fprintf(stderr, "skipped\n");
8340                                 continue;
8341                         }
8342                         rc = -EINVAL;
8343                         fprintf(stderr, "failed\n");
8344                         goto free_layout;
8345                 }
8346
8347                 if (chunks_array[idx].mirror_count == 1) {
8348                         if (verbose)
8349                                 fprintf(stdout,
8350                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
8351                                         progname, fname,
8352                                         PEXT(&chunks_array[idx].chunk),
8353                                         chunks_array[idx].mirror_id[0]);
8354                         continue;
8355                 }
8356
8357                 rc = llapi_lease_check(fd);
8358                 if (rc != LL_LEASE_RDLCK) {
8359                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
8360                                 progname, fname);
8361                         goto free_layout;
8362                 }
8363
8364                 /* verify one chunk */
8365                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
8366                                               &chunks_array[idx], verbose);
8367                 if (rc1 < 0) {
8368                         rc2 = rc1;
8369                         if (!verbose) {
8370                                 rc = rc1;
8371                                 goto free_layout;
8372                         }
8373                 }
8374         }
8375
8376         if (rc2 < 0)
8377                 rc = rc2;
8378
8379 free_layout:
8380         llapi_layout_free(layout);
8381         llapi_lease_release(fd);
8382 close_fd:
8383         close(fd);
8384 error:
8385         return rc;
8386 }
8387
8388 /**
8389  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
8390  * @argc: The count of lfs mirror verify command line arguments.
8391  * @argv: Array of strings for lfs mirror verify command line arguments.
8392  *
8393  * This function parses lfs mirror verify command and verifies the
8394  * specified mirrored file(s).
8395  *
8396  * Return: 0 on success or a negative error code on failure.
8397  */
8398 static inline int lfs_mirror_verify(int argc, char **argv)
8399 {
8400         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
8401         int ids_nr = 0;
8402         int c;
8403         int verbose = 0;
8404         int rc = 0;
8405         int rc1 = 0;
8406         char cmd[PATH_MAX];
8407
8408         struct option long_opts[] = {
8409         { .val = 'o',   .name = "only",         .has_arg = required_argument },
8410         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
8411         { .name = NULL } };
8412
8413         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
8414         progname = cmd;
8415         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
8416                 switch (c) {
8417                 case 'o':
8418                         rc = parse_mirror_ids(mirror_ids,
8419                                               ARRAY_SIZE(mirror_ids),
8420                                               optarg);
8421                         if (rc < 0) {
8422                                 fprintf(stderr,
8423                                         "%s: bad mirror ids '%s'.\n",
8424                                         progname, optarg);
8425                                 goto error;
8426                         }
8427                         ids_nr = rc;
8428                         if (ids_nr < 2) {
8429                                 fprintf(stderr,
8430                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
8431                                         progname);
8432                                 rc = CMD_HELP;
8433                                 goto error;
8434                         }
8435                         break;
8436                 case 'v':
8437                         verbose++;
8438                         break;
8439                 default:
8440                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
8441                                 progname, argv[optind - 1]);
8442                         rc = -EINVAL;
8443                         goto error;
8444                 }
8445         }
8446
8447         if (argc == optind) {
8448                 fprintf(stderr, "%s: no file name given.\n", progname);
8449                 rc = CMD_HELP;
8450                 goto error;
8451         }
8452
8453         if (ids_nr > 0 && argc > optind + 1) {
8454                 fprintf(stderr,
8455                         "%s: '--only' cannot be used upon multiple files.\n",
8456                         progname);
8457                 rc = CMD_HELP;
8458                 goto error;
8459
8460         }
8461
8462         if (ids_nr > 0) {
8463                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
8464                 if (rc < 0)
8465                         goto error;
8466         }
8467
8468         rc = 0;
8469         for (; optind < argc; optind++) {
8470                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
8471                                              verbose);
8472                 if (rc1 < 0)
8473                         rc = rc1;
8474         }
8475 error:
8476         return rc;
8477 }
8478
8479 /**
8480  * lfs_mirror() - Parse and execute lfs mirror commands.
8481  * @argc: The count of lfs mirror command line arguments.
8482  * @argv: Array of strings for lfs mirror command line arguments.
8483  *
8484  * This function parses lfs mirror commands and performs the
8485  * corresponding functions specified in mirror_cmdlist[].
8486  *
8487  * Return: 0 on success or an error code on failure.
8488  */
8489 static int lfs_mirror(int argc, char **argv)
8490 {
8491         char cmd[PATH_MAX];
8492         int rc = 0;
8493
8494         setlinebuf(stdout);
8495
8496         Parser_init("lfs-mirror > ", mirror_cmdlist);
8497
8498         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
8499         progname = cmd;
8500         program_invocation_short_name = cmd;
8501         if (argc > 1)
8502                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
8503         else
8504                 rc = Parser_commands();
8505
8506         return rc < 0 ? -rc : rc;
8507 }
8508
8509 /**
8510  * lfs_mirror_list_commands() - List lfs mirror commands.
8511  * @argc: The count of command line arguments.
8512  * @argv: Array of strings for command line arguments.
8513  *
8514  * This function lists lfs mirror commands defined in mirror_cmdlist[].
8515  *
8516  * Return: 0 on success.
8517  */
8518 static int lfs_mirror_list_commands(int argc, char **argv)
8519 {
8520         char buffer[81] = "";
8521
8522         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
8523                              NULL, 0, 4);
8524
8525         return 0;
8526 }
8527
8528 static int lfs_list_commands(int argc, char **argv)
8529 {
8530         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
8531
8532         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
8533
8534         return 0;
8535 }
8536
8537 int main(int argc, char **argv)
8538 {
8539         int rc;
8540
8541         /* Ensure that liblustreapi constructor has run */
8542         if (!llapi_liblustreapi_initialized())
8543                 fprintf(stderr, "liblustreapi was not properly initialized\n");
8544
8545         setlinebuf(stdout);
8546         opterr = 0;
8547
8548         Parser_init("lfs > ", cmdlist);
8549
8550         progname = program_invocation_short_name; /* Used in error messages */
8551         if (argc > 1) {
8552                 llapi_set_command_name(argv[1]);
8553                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
8554                 llapi_clear_command_name();
8555         } else {
8556                 rc = Parser_commands();
8557         }
8558
8559         return rc < 0 ? -rc : rc;
8560 }
8561
8562 #ifdef _LUSTRE_IDL_H_
8563 /* Everything we need here should be included by lustreapi.h. */
8564 # error "lfs should not depend on lustre_idl.h"
8565 #endif /* _LUSTRE_IDL_H_ */