lustre/utils/lfs.c

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2011, 2017, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  * Lustre is a trademark of Sun Microsystems, Inc.
  31  *
  32  * lustre/utils/lfs.c
  33  *
  34  * Author: Peter J. Braam <braam@clusterfs.com>
  35  * Author: Phil Schwan <phil@clusterfs.com>
  36  * Author: Robert Read <rread@clusterfs.com>
  37  */
  38
  39 /* for O_DIRECTORY */
  40 #ifndef _GNU_SOURCE
  41 #define _GNU_SOURCE
  42 #endif
  43
  44 #include <stdlib.h>
  45 #include <stdio.h>
  46 #include <inttypes.h>
  47 #include <getopt.h>
  48 #include <string.h>
  49 #include <mntent.h>
  50 #include <unistd.h>
  51 #include <errno.h>
  52 #include <err.h>
  53 #include <pwd.h>
  54 #include <grp.h>
  55 #include <sys/ioctl.h>
  56 #include <sys/quota.h>
  57 #include <sys/time.h>
  58 #include <sys/types.h>
  59 #include <sys/stat.h>
  60 #include <sys/param.h>
  61 #include <sys/xattr.h>
  62 #include <fcntl.h>
  63 #include <dirent.h>
  64 #include <time.h>
  65 #include <ctype.h>
  66 #include <zlib.h>
  67 #include <libgen.h>
  68 #include <asm/byteorder.h>
  69 #include "lfs_project.h"
  70
  71 #include <libcfs/util/string.h>
  72 #include <libcfs/util/ioctl.h>
  73 #include <libcfs/util/parser.h>
  74 #include <lustre/lustreapi.h>
  75 #include <linux/lustre/lustre_ver.h>
  76 #include <linux/lustre/lustre_param.h>
  77 #include <linux/lnet/nidstr.h>
  78 #include <cyaml.h>
  79
  80 #ifndef ARRAY_SIZE
  81 # define ARRAY_SIZE(a) ((sizeof(a)) / (sizeof((a)[0])))
  82 #endif /* !ARRAY_SIZE */
  83
  84 /* all functions */
  85 static int lfs_find(int argc, char **argv);
  86 static int lfs_getstripe(int argc, char **argv);
  87 static int lfs_getdirstripe(int argc, char **argv);
  88 static int lfs_setdirstripe(int argc, char **argv);
  89 static int lfs_rmentry(int argc, char **argv);
  90 static int lfs_osts(int argc, char **argv);
  91 static int lfs_mdts(int argc, char **argv);
  92 static int lfs_df(int argc, char **argv);
  93 static int lfs_getname(int argc, char **argv);
  94 static int lfs_check(int argc, char **argv);
  95 #ifdef HAVE_SYS_QUOTA_H
  96 static int lfs_setquota(int argc, char **argv);
  97 static int lfs_quota(int argc, char **argv);
  98 static int lfs_project(int argc, char **argv);
  99 #endif
 100 static int lfs_flushctx(int argc, char **argv);
 101 static int lfs_cp(int argc, char **argv);
 102 static int lfs_ls(int argc, char **argv);
 103 static int lfs_poollist(int argc, char **argv);
 104 static int lfs_changelog(int argc, char **argv);
 105 static int lfs_changelog_clear(int argc, char **argv);
 106 static int lfs_fid2path(int argc, char **argv);
 107 static int lfs_path2fid(int argc, char **argv);
 108 static int lfs_data_version(int argc, char **argv);
 109 static int lfs_hsm_state(int argc, char **argv);
 110 static int lfs_hsm_set(int argc, char **argv);
 111 static int lfs_hsm_clear(int argc, char **argv);
 112 static int lfs_hsm_action(int argc, char **argv);
 113 static int lfs_hsm_archive(int argc, char **argv);
 114 static int lfs_hsm_restore(int argc, char **argv);
 115 static int lfs_hsm_release(int argc, char **argv);
 116 static int lfs_hsm_remove(int argc, char **argv);
 117 static int lfs_hsm_cancel(int argc, char **argv);
 118 static int lfs_swap_layouts(int argc, char **argv);
 119 static int lfs_mv(int argc, char **argv);
 120 static int lfs_ladvise(int argc, char **argv);
 121 static int lfs_getsom(int argc, char **argv);
 122 static int lfs_mirror(int argc, char **argv);
 123 static int lfs_mirror_list_commands(int argc, char **argv);
 124 static int lfs_list_commands(int argc, char **argv);
 125 static inline int lfs_mirror_resync(int argc, char **argv);
 126 static inline int lfs_mirror_verify(int argc, char **argv);
 127 static inline int lfs_mirror_read(int argc, char **argv);
 128 static inline int lfs_mirror_write(int argc, char **argv);
 129
 130 enum setstripe_origin {
 131         SO_SETSTRIPE,
 132         SO_MIGRATE,
 133         SO_MIGRATE_MDT,
 134         SO_MIRROR_CREATE,
 135         SO_MIRROR_EXTEND,
 136         SO_MIRROR_SPLIT,
 137 };
 138 static int lfs_setstripe_internal(int argc, char **argv,
 139                                   enum setstripe_origin opc);
 140
 141 static inline int lfs_setstripe(int argc, char **argv)
 142 {
 143         return lfs_setstripe_internal(argc, argv, SO_SETSTRIPE);
 144 }
 145 static inline int lfs_setstripe_migrate(int argc, char **argv)
 146 {
 147         return lfs_setstripe_internal(argc, argv, SO_MIGRATE);
 148 }
 149 static inline int lfs_mirror_create(int argc, char **argv)
 150 {
 151         return lfs_setstripe_internal(argc, argv, SO_MIRROR_CREATE);
 152 }
 153 static inline int lfs_mirror_extend(int argc, char **argv)
 154 {
 155         return lfs_setstripe_internal(argc, argv, SO_MIRROR_EXTEND);
 156 }
 157 static inline int lfs_mirror_split(int argc, char **argv)
 158 {
 159         return lfs_setstripe_internal(argc, argv, SO_MIRROR_SPLIT);
 160 }
 161
 162 /* Setstripe and migrate share mostly the same parameters */
 163 #define SSM_CMD_COMMON(cmd) \
 164         "usage: "cmd" [--component-end|-E <comp_end>]\n"                \
 165         "                 [--stripe-count|-c <stripe_count>]\n"         \
 166         "                 [--stripe-index|-i <start_ost_idx>]\n"        \
 167         "                 [--stripe-size|-S <stripe_size>]\n"           \
 168         "                 [--layout|-L <pattern>]\n"                    \
 169         "                 [--pool|-p <pool_name>]\n"                    \
 170         "                 [--ost|-o <ost_indices>]\n"                   \
 171         "                 [--yaml|-y <yaml_template_file>]\n"           \
 172         "                 [--copy=<lustre_src>]\n"
 173
 174 #define SSM_HELP_COMMON \
 175         "\tstripe_count: Number of OSTs to stripe over (0=fs default, -1 all)\n" \
 176         "\tstart_ost_idx: OST index of first stripe (-1=default round robin)\n"\
 177         "\tstripe_size:  Number of bytes on each OST (0=fs default)\n" \
 178         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 179         "\t              respectively)\n"                               \
 180         "\tpool_name:    Name of OST pool to use (default none)\n"      \
 181         "\tlayout:       stripe pattern type: raid0, mdt (default raid0)\n"\
 182         "\tost_indices:  List of OST indices, can be repeated multiple times\n"\
 183         "\t              Indices be specified in a format of:\n"        \
 184         "\t                -o <ost_1>,<ost_i>-<ost_j>,<ost_n>\n"        \
 185         "\t              Or:\n"                                         \
 186         "\t                -o <ost_1> -o <ost_i>-<ost_j> -o <ost_n>\n"  \
 187         "\t              If --pool is set with --ost, then the OSTs\n"  \
 188         "\t              must be the members of the pool.\n"            \
 189         "\tcomp_end:     Extent end of component, start after previous end.\n"\
 190         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 191         "\t              respectively, -1 for EOF). Must be a multiple of\n"\
 192         "\t              stripe_size.\n"                                      \
 193         "\tyaml_template_file:\n"                                             \
 194         "\t              YAML layout template file, can't be used with -c,\n" \
 195         "\t              -i, -S, -p, -o, or -E arguments.\n"                  \
 196         "\tlustre_src:   Lustre file/dir whose layout info is used to set\n"  \
 197         "\t              another lustre file or directory, can't used with\n" \
 198         "\t              -c, -i, -S, -p, -o, or -E arguments.\n"
 199
 200 #define MIRROR_CREATE_HELP                                                     \
 201         "\tmirror_count: Number of mirrors to be created with the upcoming\n"  \
 202         "\t              setstripe layout options\n"                           \
 203         "\t              It defaults to 1 if not specified; if specified,\n"   \
 204         "\t              it must follow the option without a space.\n"         \
 205         "\t              The option can also be repeated multiple times to\n"  \
 206         "\t              separate mirrors that have different layouts.\n"      \
 207         "\tsetstripe options: Mirror layout\n"                                 \
 208         "\t              It can be a plain layout or a composite layout.\n"    \
 209         "\t              If not specified, the stripe options inherited\n"     \
 210         "\t              from the previous component will be used.\n"          \
 211         "\tflags:        set flags to the component of the current mirror.\n"  \
 212         "\t              Only \"prefer\" flag is supported so far.\n"
 213
 214 #define MIRROR_EXTEND_HELP                                                     \
 215         MIRROR_CREATE_HELP                                                     \
 216         "\tvictim_file:  The layout of victim_file will be split and used\n"   \
 217         "\t              as a mirror added to the mirrored file.\n"            \
 218         "\tno-verify:    This option indicates not to verify the mirror(s)\n"  \
 219         "\t              from victim file(s) in case the victim file(s)\n"     \
 220         "\t              contains the same data as the original mirrored\n"    \
 221         "\t              file.\n"
 222
 223 #define MIRROR_EXTEND_USAGE                                                    \
 224         "                 <--mirror-count|-N[mirror_count]>\n"                 \
 225         "                 [setstripe options|-f <victim_file>]\n"              \
 226         "                 [--no-verify]\n"
 227
 228 #define SETSTRIPE_USAGE                                                 \
 229         SSM_CMD_COMMON("setstripe")                                     \
 230         MIRROR_EXTEND_USAGE                                             \
 231         "                 <directory|filename>\n"                       \
 232         SSM_HELP_COMMON                                                 \
 233         MIRROR_EXTEND_HELP
 234
 235 #define MIGRATE_USAGE                                                   \
 236         SSM_CMD_COMMON("migrate  ")                                     \
 237         "                 [--block|-b]\n"                               \
 238         "                 [--non-block|-n]\n"                           \
 239         "                 [--non-direct|-D]\n"                          \
 240         "                 <filename>\n"                                 \
 241         SSM_HELP_COMMON                                                 \
 242         "\n"                                                            \
 243         "\tblock:        Block file access during data migration (default)\n" \
 244         "\tnon-block:    Abort migrations if concurrent access is detected\n" \
 245         "\tnon-direct:   Do not use direct I/O to copy file contents\n" \
 246
 247 #define SETDIRSTRIPE_USAGE                                              \
 248         "               [--mdt-count|-c stripe_count>\n"                \
 249         "               [--mdt-index|-i mdt_index[,mdt_index,...]\n"    \
 250         "               [--mdt-hash|-H mdt_hash]\n"                     \
 251         "               [--default|-D] [--mode|-m mode] <dir>\n"        \
 252         "\tstripe_count: stripe count of the striped directory\n"       \
 253         "\tmdt_index: MDT index of first stripe\n"                      \
 254         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 255         "       fnv_1a_64 FNV-1a hash algorithm (default)\n"            \
 256         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 257         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 258         "\tmode: the mode of the directory\n"
 259
 260 /**
 261  * command_t mirror_cmdlist - lfs mirror commands.
 262  */
 263 command_t mirror_cmdlist[] = {
 264         { .pc_name = "create", .pc_func = lfs_mirror_create,
 265           .pc_help = "Create a mirrored file.\n"
 266                 "usage: lfs mirror create "
 267                 "<--mirror-count|-N[mirror_count]> "
 268                 "[setstripe options] ... <filename|directory>\n"
 269           MIRROR_CREATE_HELP },
 270         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 271           .pc_help = "Extend a mirrored file.\n"
 272                 "usage: lfs mirror extend "
 273                 "<--mirror-count|-N[mirror_count]> [--no-verify] "
 274                 "[setstripe options|-f <victim_file>] ... <filename>\n"
 275           MIRROR_EXTEND_HELP },
 276         { .pc_name = "split", .pc_func = lfs_mirror_split,
 277           .pc_help = "Split a mirrored file.\n"
 278         "usage: lfs mirror split <--mirror-id <mirror_id> | \n"
 279         "\t             <--component-id|-I <comp_id>> [--destroy|-d] \n"
 280         "\t             [-f <new_file>] <mirrored file>\n"
 281         "\tmirror_id:   The numerical unique identifier for a mirror. It\n"
 282         "\t             can be fetched by lfs getstripe command.\n"
 283         "\tcomp_id:     Unique component ID within a mirror.\n"
 284         "\tnew_file:    This option indicates the layout of the split\n"
 285         "\t             mirror will be stored into. If not specified,\n"
 286         "\t             a new file named <mirrored_file>.mirror~<mirror_id>\n"
 287         "\t             will be used.\n" },
 288         { .pc_name = "read", .pc_func = lfs_mirror_read,
 289           .pc_help = "Read the content of a specified mirror of a file.\n"
 290                 "usage: lfs mirror read <--mirror-id|-N <mirror_id> "
 291                 "[--outfile|-o <output_file>] <mirrored_file>\n" },
 292         { .pc_name = "write", .pc_func = lfs_mirror_write,
 293           .pc_help = "Write to a specified mirror of a file.\n"
 294                 "usage: lfs mirror write <--mirror-id|-N <mirror_id> "
 295                 "[--inputfile|-i <input_file>] <mirrored_file>\n" },
 296         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 297           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 298                 "usage: lfs mirror resync [--only <mirror_id[,...]>] "
 299                 "<mirrored file> [<mirrored file2>...]\n"},
 300         { .pc_name = "verify", .pc_func = lfs_mirror_verify,
 301           .pc_help = "Verify mirrored file(s).\n"
 302                 "usage: lfs mirror verify "
 303                 "[--only <mirror_id,mirror_id2[,...]>] "
 304                 "[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n"},
 305         { .pc_name = "list-commands", .pc_func = lfs_mirror_list_commands,
 306           .pc_help = "list commands supported by lfs mirror"},
 307         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 308         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 309         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 310         { .pc_help = NULL }
 311 };
 312
 313 /* all available commands */
 314 command_t cmdlist[] = {
 315         {"setstripe", lfs_setstripe, 0,
 316          "To create a file with specified striping/composite layout, or\n"
 317          "create/replace the default layout on an existing directory:\n"
 318          SSM_CMD_COMMON("setstripe")
 319          "                 <directory|filename>\n"
 320          " or\n"
 321          "To add component(s) to an existing composite file:\n"
 322          SSM_CMD_COMMON("setstripe --component-add")
 323          SSM_HELP_COMMON
 324          "To totally delete the default striping from an existing directory:\n"
 325          "usage: setstripe -d <directory>\n"
 326          " or\n"
 327          "To create a mirrored file or set s default mirror layout on a directory:\n"
 328          "usage: setstripe -N[mirror_count] [STRIPE_OPTIONS] <directory|filename>\n"
 329          " or\n"
 330          "To delete the last component(s) from an existing composite file\n"
 331          "(note that this will also delete any data in those components):\n"
 332          "usage: setstripe --component-del [--component-id|-I <comp_id>]\n"
 333          "                               [--component-flags|-F <comp_flags>]\n"
 334          "                               <filename>\n"
 335          "\tcomp_id:     Unique component ID to delete\n"
 336          "\tcomp_flags:  'init' indicating all instantiated components\n"
 337          "\t             '^init' indicating all uninstantiated components\n"
 338          "\t-I and -F cannot be specified at the same time\n"},
 339         {"getstripe", lfs_getstripe, 0,
 340          "To list the layout pattern for a given file or files in a\n"
 341          "directory or recursively for all files in a directory tree.\n"
 342          "usage: getstripe [--ost|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
 343          "                 [--stripe-count|-c] [--stripe-index|-i] [--fid|-F]\n"
 344          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 345          "                 [--mdt-index|-m] [--recursive|-r] [--raw|-R]\n"
 346          "                 [--layout|-L] [--generation|-g] [--yaml|-y]\n"
 347          "                 [--component-id[=comp_id]|-I[comp_id]]\n"
 348          "                 [--component-flags[=comp_flags]]\n"
 349          "                 [--component-count]\n"
 350          "                 [--component-start[=[+-]comp_start]]\n"
 351          "                 [--component-end[=[+-]comp_end]|-E[[+-]comp_end]]\n"
 352          "                 [[!] --mirror-index=[+-]<index> |\n"
 353          "                  [!] --mirror-id=[+-]<id>]\n"
 354          "                 <directory|filename> ..."},
 355         {"setdirstripe", lfs_setdirstripe, 0,
 356          "To create a striped directory on a specified MDT. This can only\n"
 357          "be done on MDT0 with the right of administrator.\n"
 358          "usage: setdirstripe [OPTION] <directory>\n"
 359          SETDIRSTRIPE_USAGE},
 360         {"getdirstripe", lfs_getdirstripe, 0,
 361          "To list the layout pattern info for a given directory\n"
 362          "or recursively for all directories in a directory tree.\n"
 363          "usage: getdirstripe [--mdt-count|-c] [--mdt-index|-m|-i]\n"
 364          "                    [--mdt-hash|-H] [--obd|-O <uuid>]\n"
 365          "                    [--recursive|-r] [--yaml|-y]\n"
 366          "                    [--default|-D] <dir> ..."},
 367         {"mkdir", lfs_setdirstripe, 0,
 368          "To create a striped directory on a specified MDT. This can only\n"
 369          "be done on MDT0 with the right of administrator.\n"
 370          "usage: mkdir [OPTION] <directory>\n"
 371          SETDIRSTRIPE_USAGE},
 372         {"rm_entry", lfs_rmentry, 0,
 373          "To remove the name entry of the remote directory. Note: This\n"
 374          "command will only delete the name entry, i.e. the remote directory\n"
 375          "will become inaccessable after this command. This can only be done\n"
 376          "by the administrator\n"
 377          "usage: rm_entry <dir>\n"},
 378         {"pool_list", lfs_poollist, 0,
 379          "List pools or pool OSTs\n"
 380          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 381         {"find", lfs_find, 0,
 382          "find files matching given attributes recursively in directory tree.\n"
 383          "usage: find <directory|filename> ...\n"
 384          "     [[!] --atime|-A [+-]N] [[!] --ctime|-C [+-]N]\n"
 385          "     [[!] --mtime|-M [+-]N] [--maxdepth|-D N] [[!] --blocks|-b N]\n"
 386          "     [[!] --mdt-index|--mdt|-m <uuid|index,...>]\n"
 387          "     [[!] --name|-n <pattern>] [[!] --ost|-O <uuid|index,...>]\n"
 388          "     [--print|-P] [--print0|-0] [[!] --size|-s [+-]N[bkMGTPE]]\n"
 389          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 390          "     [[!] --stripe-index|-i <index,...>]\n"
 391          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 392          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
 393          "     [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
 394          "     [[!] --projid <projid>]\n"
 395          "     [[!] --layout|-L released,raid0,mdt]\n"
 396          "     [[!] --component-count [+-]<comp_cnt>]\n"
 397          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 398          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 399          "     [[!] --component-flags <comp_flags>]\n"
 400          "     [[!] --mirror-count|-N [+-]<n>]\n"
 401          "     [[!] --mirror-state <[^]state>]\n"
 402          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 403          "     [[!] --mdt-hash|-H <hashtype>\n"
 404          "\t !: used before an option indicates 'NOT' requested attribute\n"
 405          "\t -: used before a value indicates less than requested value\n"
 406          "\t +: used before a value indicates more than requested value\n"
 407          "\thashtype:   hash type of the striped directory.\n"
 408          "\t            fnv_1a_64 FNV-1a hash algorithm\n"
 409          "\t            all_char  sum of characters % MDT_COUNT\n"},
 410         {"check", lfs_check, 0,
 411          "Display the status of MGTs, MDTs or OSTs (as specified in the command)\n"
 412          "or all the servers (MGTs, MDTs and OSTs).\n"
 413          "usage: check <mgts|osts|mdts|all>"},
 414         {"osts", lfs_osts, 0, "list OSTs connected to client "
 415          "[for specified path only]\n" "usage: osts [path]"},
 416         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 417          "[for specified path only]\n" "usage: mdts [path]"},
 418         {"df", lfs_df, 0,
 419          "report filesystem disk space usage or inodes usage"
 420          "of each MDS and all OSDs or a batch belonging to a specific pool .\n"
 421          "Usage: df [-i] [-h] [--lazy|-l] [--pool|-p <fsname>[.<pool>] [path]"},
 422         {"getname", lfs_getname, 0, "list instances and specified mount points "
 423          "[for specified path only]\n"
 424          "Usage: getname [-h]|[path ...] "},
 425 #ifdef HAVE_SYS_QUOTA_H
 426         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 427          "usage: setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 428          "                -b <block-softlimit> -B <block-hardlimit>\n"
 429          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 430          "       setquota <-u|--user|-g|--group|-p|--projid> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 431          "                [--block-softlimit <block-softlimit>]\n"
 432          "                [--block-hardlimit <block-hardlimit>]\n"
 433          "                [--inode-softlimit <inode-softlimit>]\n"
 434          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 435          "       setquota [-t] <-u|--user|-g|--group|-p|--projid>\n"
 436          "                [--block-grace <block-grace>]\n"
 437          "                [--inode-grace <inode-grace>] <filesystem>\n"
 438          "       setquota <-U|-G|-P>\n"
 439          "                -b <block-softlimit> -B <block-hardlimit>\n"
 440          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 441          "       setquota <-U|--default-usr|-G|--default-grp|-P|--default-prj>\n"
 442          "                [--block-softlimit <block-softlimit>]\n"
 443          "                [--block-hardlimit <block-hardlimit>]\n"
 444          "                [--inode-softlimit <inode-softlimit>]\n"
 445          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 446          "       setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 447          "                <-d|--default>\n"
 448          "       -b can be used instead of --block-softlimit/--block-grace\n"
 449          "       -B can be used instead of --block-hardlimit\n"
 450          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 451          "       -I can be used instead of --inode-hardlimit\n"
 452          "       -d can be used instead of --default\n\n"
 453          "Note: The total quota space will be split into many qunits and\n"
 454          "      balanced over all server targets, the minimal qunit size is\n"
 455          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 456          "      The maximum quota grace time is 2^48 - 1 seconds.\n\n"
 457          "      Quota space rebalancing process will stop when this mininum\n"
 458          "      value is reached. As a result, quota exceeded can be returned\n"
 459          "      while many targets still have 1MB or 1K inodes of spare\n"
 460          "      quota space."},
 461         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 462          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
 463                        "<ost_idx>]\n"
 464          "             [<-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>\n"
 465          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g|-p> <filesystem>\n"
 466         "        quota [-q] [-v] [h] <-U|-G|-P> <filesystem>"},
 467         {"project", lfs_project, 0,
 468          "Change or list project attribute for specified file or directory.\n"
 469          "usage: project [-d|-r] <file|directory...>\n"
 470          "         list project ID and flags on file(s) or directories\n"
 471          "       project [-p id] [-s] [-r] <file|directory...>\n"
 472          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 473          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 474          "         check project ID and flags on file(s) or directories, print outliers\n"
 475          "       project -C [-r] [-k] <file|directory...>\n"
 476          "         clear the project inherit flag and ID on the file or directory\n"
 477         },
 478 #endif
 479         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
 480          "usage: flushctx [-k] [mountpoint...]"},
 481         {"cp", lfs_cp, 0,
 482          "Remote user copy files and directories.\n"
 483          "usage: cp [OPTION]... [-T] SOURCE DEST\n\tcp [OPTION]... SOURCE... DIRECTORY\n\tcp [OPTION]... -t DIRECTORY SOURCE..."},
 484         {"ls", lfs_ls, 0,
 485          "Remote user list directory contents.\n"
 486          "usage: ls [OPTION]... [FILE]..."},
 487         {"changelog", lfs_changelog, 0,
 488          "Show the metadata changes on an MDT."
 489          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 490         {"changelog_clear", lfs_changelog_clear, 0,
 491          "Indicate that old changelog records up to <endrec> are no longer of "
 492          "interest to consumer <id>, allowing the system to free up space.\n"
 493          "An <endrec> of 0 means all records.\n"
 494          "usage: changelog_clear <mdtname> <id> <endrec>"},
 495         {"fid2path", lfs_fid2path, 0,
 496          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 497          "specify link number <linkno>.\n"
 498         /* "For a historical link name, specify changelog record <recno>.\n" */
 499          "usage: fid2path [--link <linkno>] <fsname|rootpath> <fid> ..."
 500                 /* [ --rec <recno> ] */ },
 501         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 502          "usage: path2fid [--parents] <path> ..."},
 503         {"data_version", lfs_data_version, 0, "Display file data version for "
 504          "a given path.\n" "usage: data_version -[n|r|w] <path>"},
 505         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 506          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 507         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 508          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 509          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 510         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 511          "files.\n"
 512          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 513          "[--archived] [--lost] <file> ..."},
 514         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 515          "given files.\n" "usage: hsm_action <file> ..."},
 516         {"hsm_archive", lfs_hsm_archive, 0,
 517          "Archive file to external storage.\n"
 518          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 519          "<file> ..."},
 520         {"hsm_restore", lfs_hsm_restore, 0,
 521          "Restore file from external storage.\n"
 522          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 523         {"hsm_release", lfs_hsm_release, 0,
 524          "Release files from Lustre.\n"
 525          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 526         {"hsm_remove", lfs_hsm_remove, 0,
 527          "Remove file copy from external storage.\n"
 528          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 529          "[--archive NUM]\n"
 530          "                  (FILE [FILE ...] | "
 531          "--mntpath MOUNTPATH FID [FID ...])\n"
 532          "\n"
 533          "Note: To remove an archived copy of a file already deleted from a "
 534          "Lustre FS, the\n"
 535          "--mntpath option and a list of FIDs must be specified"
 536         },
 537         {"hsm_cancel", lfs_hsm_cancel, 0,
 538          "Cancel requests related to specified files.\n"
 539          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 540         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 541          "usage: swap_layouts <path1> <path2>"},
 542         {"migrate", lfs_setstripe_migrate, 0,
 543          "migrate a directory between MDTs.\n"
 544          "usage: migrate [--mdt|-m] <start_mdt_index>\n"
 545          "               [--mdt-count|-c] <stripe_count>\n"
 546          "               [--mdt-hash|-H] <hash_type>\n"
 547          "               [--verbose|-v]\n"
 548          "               <directory>\n"
 549          "\tmdt:        MDTs to stripe over, if only one MDT is specified\n"
 550          "                      it's the MDT index of first stripe\n"
 551          "\tmdt_count:  number of MDTs to stripe a directory over\n"
 552          "\tmdt_hash:   hash type of the striped directory. mdt types:\n"
 553          "                      fnv_1a_64 FNV-1a hash algorithm (default)\n"
 554          "                      all_char  sum of characters % MDT_COUNT\n"
 555          "\n"
 556          "migrate file objects from one OST "
 557          "layout\nto another (may be not safe with concurent writes).\n"
 558          "usage: migrate  "
 559          "[--stripe-count|-c] <stripe_count>\n"
 560          "              [--stripe-index|-i] <start_ost_index>\n"
 561          "              [--stripe-size|-S] <stripe_size>\n"
 562          "              [--pool|-p] <pool_name>\n"
 563          "              [--ost|-o] <ost_indices>\n"
 564          "              [--block|-b]\n"
 565          "              [--non-block|-n]\n"
 566          "              [--non-direct|-D]\n"
 567          "              <file|directory>\n"
 568          "\tstripe_count:     number of OSTs to stripe a file over\n"
 569          "\tstripe_ost_index: index of the first OST to stripe a file over\n"
 570          "\tstripe_size:      number of bytes to store before moving to the next OST\n"
 571          "\tpool_name:        name of the predefined pool of OSTs\n"
 572          "\tost_indices:      OSTs to stripe over, in order\n"
 573          "\tblock:            wait for the operation to return before continuing\n"
 574          "\tnon-block:        do not wait for the operation to return\n"
 575          "\tnon-direct:       do not use direct I/O to copy file contents.\n"},
 576         {"mv", lfs_mv, 0,
 577          "To move directories between MDTs. This command is deprecated, "
 578          "use \"migrate\" instead.\n"
 579          "usage: mv <directory|filename> [--mdt-index|-m] <mdt_index> "
 580          "[--verbose|-v]\n"},
 581         {"ladvise", lfs_ladvise, 0,
 582          "Provide servers with advice about access patterns for a file.\n"
 583          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 584          "               [--background|-b] [--unset|-u]\n\n"
 585          "               {[--end|-e END[kMGT]] | [--length|-l LENGTH[kMGT]]}\n"
 586          "               {[--mode|-m [READ,WRITE]}\n"
 587          "               <file> ...\n"},
 588         {"mirror", lfs_mirror, mirror_cmdlist,
 589          "lfs commands used to manage files with mirrored components:\n"
 590          "lfs mirror create - create a mirrored file or directory\n"
 591          "lfs mirror extend - add mirror(s) to an existing file\n"
 592          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 593          "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
 594          "lfs mirror read   - read a mirror content of a mirrored file\n"
 595          "lfs mirror write  - write to a mirror of a mirrored file\n"
 596          "lfs mirror verify - verify mirrored file(s)\n"},
 597         {"getsom", lfs_getsom, 0, "To list the SOM info for a given file.\n"
 598          "usage: getsom [-s] [-b] [-f] <path>\n"
 599          "\t-s: Only show the size value of the SOM data for a given file\n"
 600          "\t-b: Only show the blocks value of the SOM data for a given file\n"
 601          "\t-f: Only show the flags value of the SOM data for a given file\n"},
 602         {"help", Parser_help, 0, "help"},
 603         {"exit", Parser_quit, 0, "quit"},
 604         {"quit", Parser_quit, 0, "quit"},
 605         {"--version", Parser_version, 0,
 606          "output build version of the utility and exit"},
 607         {"--list-commands", lfs_list_commands, 0,
 608          "list commands supported by the utility and exit"},
 609         { 0, 0, 0, NULL }
 610 };
 611
 612
 613 static int check_hashtype(const char *hashtype)
 614 {
 615         int i;
 616
 617         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 618                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 619                         return i;
 620
 621         return 0;
 622 }
 623
 624
 625 static const char *error_loc = "syserror";
 626
 627 enum {
 628         MIGRATION_NONBLOCK      = 1 << 0,
 629         MIGRATION_MIRROR        = 1 << 1,
 630         MIGRATION_NONDIRECT     = 1 << 2,
 631 };
 632
 633 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
 634                                 struct llapi_layout *layout);
 635
 636 static int
 637 migrate_open_files(const char *name, __u64 migration_flags,
 638                    const struct llapi_stripe_param *param,
 639                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 640 {
 641         int                      fd = -1;
 642         int                      fdv = -1;
 643         int                      rflags;
 644         int                      mdt_index;
 645         int                      random_value;
 646         char                     parent[PATH_MAX];
 647         char                     volatile_file[PATH_MAX];
 648         char                    *ptr;
 649         int                      rc;
 650         struct stat              st;
 651         struct stat              stv;
 652
 653         if (param == NULL && layout == NULL) {
 654                 error_loc = "layout information";
 655                 return -EINVAL;
 656         }
 657
 658         /* search for file directory pathname */
 659         if (strlen(name) > sizeof(parent) - 1) {
 660                 error_loc = "source file name";
 661                 return -ERANGE;
 662         }
 663
 664         strncpy(parent, name, sizeof(parent));
 665         ptr = strrchr(parent, '/');
 666         if (ptr == NULL) {
 667                 if (getcwd(parent, sizeof(parent)) == NULL) {
 668                         error_loc = "getcwd";
 669                         return -errno;
 670                 }
 671         } else {
 672                 if (ptr == parent) /* leading '/' */
 673                         ptr = parent + 1;
 674                 *ptr = '\0';
 675         }
 676
 677         /* open file, direct io */
 678         /* even if the file is only read, WR mode is nedeed to allow
 679          * layout swap on fd */
 680         rflags = O_RDWR;
 681         if (!(migration_flags & MIGRATION_NONDIRECT))
 682                 rflags |= O_DIRECT;
 683         fd = open(name, rflags);
 684         if (fd < 0) {
 685                 rc = -errno;
 686                 error_loc = "cannot open source file";
 687                 return rc;
 688         }
 689
 690         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 691         if (rc < 0) {
 692                 error_loc = "cannot get MDT index";
 693                 goto out;
 694         }
 695
 696         do {
 697                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 698                 mode_t open_mode = S_IRUSR | S_IWUSR;
 699
 700                 random_value = random();
 701                 rc = snprintf(volatile_file, sizeof(volatile_file),
 702                               "%s/%s:%.4X:%.4X", parent, LUSTRE_VOLATILE_HDR,
 703                               mdt_index, random_value);
 704                 if (rc >= sizeof(volatile_file)) {
 705                         rc = -ENAMETOOLONG;
 706                         break;
 707                 }
 708
 709                 /* create, open a volatile file, use caching (ie no directio) */
 710                 if (param != NULL)
 711                         fdv = llapi_file_open_param(volatile_file, open_flags,
 712                                                     open_mode, param);
 713                 else
 714                         fdv = lfs_component_create(volatile_file, open_flags,
 715                                                    open_mode, layout);
 716         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 717
 718         if (rc < 0) {
 719                 error_loc = "cannot create volatile file";
 720                 goto out;
 721         }
 722
 723         /* In case the MDT does not support creation of volatile files
 724          * we should try to unlink it. */
 725         (void)unlink(volatile_file);
 726
 727         /* Not-owner (root?) special case.
 728          * Need to set owner/group of volatile file like original.
 729          * This will allow to pass related check during layout_swap.
 730          */
 731         rc = fstat(fd, &st);
 732         if (rc != 0) {
 733                 rc = -errno;
 734                 error_loc = "cannot stat source file";
 735                 goto out;
 736         }
 737
 738         rc = fstat(fdv, &stv);
 739         if (rc != 0) {
 740                 rc = -errno;
 741                 error_loc = "cannot stat volatile";
 742                 goto out;
 743         }
 744
 745         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 746                 rc = fchown(fdv, st.st_uid, st.st_gid);
 747                 if (rc != 0) {
 748                         rc = -errno;
 749                         error_loc = "cannot change ownwership of volatile";
 750                         goto out;
 751                 }
 752         }
 753
 754 out:
 755         if (rc < 0) {
 756                 if (fd > 0)
 757                         close(fd);
 758                 if (fdv > 0)
 759                         close(fdv);
 760         } else {
 761                 *fd_src = fd;
 762                 *fd_tgt = fdv;
 763                 error_loc = NULL;
 764         }
 765         return rc;
 766 }
 767
 768 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 769 {
 770         struct llapi_layout *layout;
 771         size_t   buf_size = 4 * 1024 * 1024;
 772         void    *buf = NULL;
 773         ssize_t  rsize = -1;
 774         ssize_t  wsize = 0;
 775         size_t   rpos = 0;
 776         size_t   wpos = 0;
 777         off_t    bufoff = 0;
 778         int      rc;
 779
 780         layout = llapi_layout_get_by_fd(fd_src, 0);
 781         if (layout != NULL) {
 782                 uint64_t stripe_size;
 783
 784                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 785                 if (rc == 0)
 786                         buf_size = stripe_size;
 787
 788                 llapi_layout_free(layout);
 789         }
 790
 791         /* Use a page-aligned buffer for direct I/O */
 792         rc = posix_memalign(&buf, getpagesize(), buf_size);
 793         if (rc != 0)
 794                 return -rc;
 795
 796         while (1) {
 797                 /* read new data only if we have written all
 798                  * previously read data */
 799                 if (wpos == rpos) {
 800                         if (check_file) {
 801                                 rc = check_file(fd_src);
 802                                 if (rc < 0)
 803                                         break;
 804                         }
 805
 806                         rsize = read(fd_src, buf, buf_size);
 807                         if (rsize < 0) {
 808                                 rc = -errno;
 809                                 break;
 810                         }
 811                         rpos += rsize;
 812                         bufoff = 0;
 813                 }
 814                 /* eof ? */
 815                 if (rsize == 0)
 816                         break;
 817
 818                 wsize = write(fd_dst, buf + bufoff, rpos - wpos);
 819                 if (wsize < 0) {
 820                         rc = -errno;
 821                         break;
 822                 }
 823                 wpos += wsize;
 824                 bufoff += wsize;
 825         }
 826
 827         if (rc == 0) {
 828                 rc = fsync(fd_dst);
 829                 if (rc < 0)
 830                         rc = -errno;
 831         }
 832
 833         free(buf);
 834         return rc;
 835 }
 836
 837 static int migrate_copy_timestamps(int fd, int fdv)
 838 {
 839         struct stat st;
 840
 841         if (fstat(fd, &st) == 0) {
 842                 struct timeval tv[2] = {
 843                         {.tv_sec = st.st_atime},
 844                         {.tv_sec = st.st_mtime}
 845                 };
 846
 847                 return futimes(fdv, tv);
 848         }
 849
 850         return -errno;
 851 }
 852
 853 static int migrate_block(int fd, int fdv)
 854 {
 855         __u64   dv1;
 856         int     gid;
 857         int     rc;
 858         int     rc2;
 859
 860         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 861         if (rc < 0) {
 862                 error_loc = "cannot get dataversion";
 863                 return rc;
 864         }
 865
 866         do
 867                 gid = random();
 868         while (gid == 0);
 869
 870         /* The grouplock blocks all concurrent accesses to the file.
 871          * It has to be taken after llapi_get_data_version as it would
 872          * block it too. */
 873         rc = llapi_group_lock(fd, gid);
 874         if (rc < 0) {
 875                 error_loc = "cannot get group lock";
 876                 return rc;
 877         }
 878
 879         rc = migrate_copy_data(fd, fdv, NULL);
 880         if (rc < 0) {
 881                 error_loc = "data copy failed";
 882                 goto out_unlock;
 883         }
 884
 885         /* Make sure we keep original atime/mtime values */
 886         rc = migrate_copy_timestamps(fd, fdv);
 887         if (rc < 0) {
 888                 error_loc = "timestamp copy failed";
 889                 goto out_unlock;
 890         }
 891
 892         /* swap layouts
 893          * for a migration we need to check data version on file did
 894          * not change.
 895          *
 896          * Pass in gid=0 since we already own grouplock. */
 897         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
 898                                            SWAP_LAYOUTS_CHECK_DV1);
 899         if (rc == -EAGAIN) {
 900                 error_loc = "file changed";
 901                 goto out_unlock;
 902         } else if (rc < 0) {
 903                 error_loc = "cannot swap layout";
 904                 goto out_unlock;
 905         }
 906
 907 out_unlock:
 908         rc2 = llapi_group_unlock(fd, gid);
 909         if (rc2 < 0 && rc == 0) {
 910                 error_loc = "unlock group lock";
 911                 rc = rc2;
 912         }
 913
 914         return rc;
 915 }
 916
 917 /**
 918  * Internal helper for migrate_copy_data(). Check lease and report error if
 919  * need be.
 920  *
 921  * \param[in]  fd           File descriptor on which to check the lease.
 922  *
 923  * \retval 0       Migration can keep on going.
 924  * \retval -errno  Error occurred, abort migration.
 925  */
 926 static int check_lease(int fd)
 927 {
 928         int rc;
 929
 930         rc = llapi_lease_check(fd);
 931         if (rc > 0)
 932                 return 0; /* llapi_check_lease returns > 0 on success. */
 933
 934         return -EBUSY;
 935 }
 936
 937 static int migrate_nonblock(int fd, int fdv)
 938 {
 939         __u64   dv1;
 940         __u64   dv2;
 941         int     rc;
 942
 943         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 944         if (rc < 0) {
 945                 error_loc = "cannot get data version";
 946                 return rc;
 947         }
 948
 949         rc = migrate_copy_data(fd, fdv, check_lease);
 950         if (rc < 0) {
 951                 error_loc = "data copy failed";
 952                 return rc;
 953         }
 954
 955         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
 956         if (rc != 0) {
 957                 error_loc = "cannot get data version";
 958                 return rc;
 959         }
 960
 961         if (dv1 != dv2) {
 962                 rc = -EAGAIN;
 963                 error_loc = "source file changed";
 964                 return rc;
 965         }
 966
 967         /* Make sure we keep original atime/mtime values */
 968         rc = migrate_copy_timestamps(fd, fdv);
 969         if (rc < 0) {
 970                 error_loc = "timestamp copy failed";
 971                 return rc;
 972         }
 973
 974         return 0;
 975 }
 976
 977 static int lfs_component_set(char *fname, int comp_id,
 978                              __u32 flags, __u32 neg_flags)
 979 {
 980         __u32 ids[2];
 981         __u32 flags_array[2];
 982         size_t count = 0;
 983         int rc;
 984
 985         if (flags) {
 986                 ids[count] = comp_id;
 987                 flags_array[count] = flags;
 988                 ++count;
 989         }
 990
 991         if (neg_flags) {
 992                 ids[count] = comp_id;
 993                 flags_array[count] = neg_flags | LCME_FL_NEG;
 994                 ++count;
 995         }
 996
 997         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
 998         if (rc)
 999                 fprintf(stderr,
1000                         "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
1001                         progname, comp_id, fname, flags, neg_flags);
1002
1003         return rc;
1004 }
1005
1006 static int lfs_component_del(char *fname, __u32 comp_id,
1007                              __u32 flags, __u32 neg_flags)
1008 {
1009         int     rc = 0;
1010
1011         if (flags && neg_flags)
1012                 return -EINVAL;
1013
1014         if (!flags && neg_flags)
1015                 flags = neg_flags | LCME_FL_NEG;
1016
1017         if ((flags && comp_id) || (!flags && !comp_id))
1018                 return -EINVAL;
1019
1020         /* LCME_FL_INIT is the only supported flag in PFL */
1021         if (flags) {
1022                 if (flags & ~LCME_KNOWN_FLAGS) {
1023                         fprintf(stderr,
1024                                 "%s setstripe: unknown flags %#x\n",
1025                                 progname, flags);
1026                         return -EINVAL;
1027                 }
1028         } else if (comp_id > LCME_ID_MAX) {
1029                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
1030                         progname, comp_id);
1031                 return -EINVAL;
1032         }
1033
1034         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
1035         if (rc)
1036                 fprintf(stderr,
1037                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
1038                         progname, comp_id, fname, strerror(errno));
1039         return rc;
1040 }
1041
1042 static int lfs_component_add(char *fname, struct llapi_layout *layout)
1043 {
1044         int     rc;
1045
1046         if (layout == NULL)
1047                 return -EINVAL;
1048
1049         rc = llapi_layout_file_comp_add(fname, layout);
1050         if (rc)
1051                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1052                         fname, strerror(errno));
1053         return rc;
1054 }
1055
1056 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1057                                 struct llapi_layout *layout)
1058 {
1059         struct stat     st;
1060         int     fd;
1061
1062         if (layout == NULL)
1063                 return -EINVAL;
1064
1065         fd = lstat(fname, &st);
1066         if (fd == 0 && S_ISDIR(st.st_mode))
1067                 open_flags = O_DIRECTORY | O_RDONLY;
1068
1069         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1070         if (fd < 0)
1071                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1072                         S_ISDIR(st.st_mode) ?
1073                                 "set default composite layout for" :
1074                                 "create composite file",
1075                         fname, strerror(errno));
1076         return fd;
1077 }
1078
1079 static int lfs_migrate(char *name, __u64 migration_flags,
1080                        struct llapi_stripe_param *param,
1081                        struct llapi_layout *layout)
1082 {
1083         int fd = -1;
1084         int fdv = -1;
1085         int rc;
1086
1087         rc = migrate_open_files(name, migration_flags, param, layout,
1088                                 &fd, &fdv);
1089         if (rc < 0)
1090                 goto out;
1091
1092         if (!(migration_flags & MIGRATION_NONBLOCK)) {
1093                 /* Blocking mode (forced if servers do not support file lease).
1094                  * It is also the default mode, since we cannot distinguish
1095                  * between a broken lease and a server that does not support
1096                  * atomic swap/close (LU-6785) */
1097                 rc = migrate_block(fd, fdv);
1098                 goto out;
1099         }
1100
1101         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1102         if (rc < 0) {
1103                 error_loc = "cannot get lease";
1104                 goto out;
1105         }
1106
1107         rc = migrate_nonblock(fd, fdv);
1108         if (rc < 0) {
1109                 llapi_lease_release(fd);
1110                 goto out;
1111         }
1112
1113         /* Atomically put lease, swap layouts and close.
1114          * for a migration we need to check data version on file did
1115          * not change. */
1116         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1117         if (rc < 0) {
1118                 error_loc = "cannot swap layout";
1119                 goto out;
1120         }
1121
1122 out:
1123         if (fd >= 0)
1124                 close(fd);
1125
1126         if (fdv >= 0)
1127                 close(fdv);
1128
1129         if (rc < 0)
1130                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1131                         progname, name, error_loc, strerror(-rc));
1132         return rc;
1133 }
1134
1135 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1136 {
1137         char *name;
1138
1139         if (string == NULL)
1140                 return -EINVAL;
1141
1142         *flags = 0;
1143         *neg_flags = 0;
1144         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1145                 bool found = false;
1146                 int i;
1147
1148                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1149                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1150                         const char *comp_name = comp_flags_table[i].cfn_name;
1151
1152                         if (strcmp(name, comp_name) == 0) {
1153                                 *flags |= comp_flag;
1154                                 found = true;
1155                         } else if (strncmp(name, "^", 1) == 0 &&
1156                                    strcmp(name + 1, comp_name) == 0) {
1157                                 *neg_flags |= comp_flag;
1158                                 found = true;
1159                         }
1160                 }
1161                 if (!found) {
1162                         llapi_printf(LLAPI_MSG_ERROR,
1163                                      "%s: component flag '%s' not supported\n",
1164                                      progname, name);
1165                         return -EINVAL;
1166                 }
1167         }
1168
1169         if (!*flags && !*neg_flags)
1170                 return -EINVAL;
1171
1172         /* don't allow to set and exclude the same flag */
1173         if (*flags & *neg_flags)
1174                 return -EINVAL;
1175
1176         return 0;
1177 }
1178
1179 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1180 {
1181         if (string == NULL)
1182                 return -EINVAL;
1183
1184         *state = 0;
1185         *neg_state = 0;
1186
1187         if (strncmp(string, "^", 1) == 0) {
1188                 *neg_state = llapi_layout_string_flags(string + 1);
1189                 if (*neg_state != 0)
1190                         return 0;
1191         } else {
1192                 *state = llapi_layout_string_flags(string);
1193                 if (*state != 0)
1194                         return 0;
1195         }
1196
1197         llapi_printf(LLAPI_MSG_ERROR,
1198                      "%s: mirrored file state '%s' not supported\n",
1199                      progname, string);
1200         return -EINVAL;
1201 }
1202
1203 /**
1204  * struct mirror_args - Command-line arguments for mirror(s).
1205  * @m_count:  Number of mirrors to be created with this layout.
1206  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1207  * @m_layout: Mirror layout.
1208  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1209  * @m_next:   Point to the next node of the list.
1210  *
1211  * Command-line arguments for mirror(s) will be parsed and stored in
1212  * a linked list that consists of this structure.
1213  */
1214 struct mirror_args {
1215         __u32                   m_count;
1216         __u32                   m_flags;
1217         struct llapi_layout     *m_layout;
1218         const char              *m_file;
1219         struct mirror_args      *m_next;
1220 };
1221
1222 static int mirror_sanity_check_flags(struct llapi_layout *layout, void *unused)
1223 {
1224         uint32_t flags;
1225         int rc;
1226
1227         rc = llapi_layout_comp_flags_get(layout, &flags);
1228         if (rc)
1229                 return -errno;
1230
1231         if (flags & LCME_FL_NEG) {
1232                 fprintf(stderr, "error: %s: negative flags are not supported\n",
1233                         progname);
1234                 return -EINVAL;
1235         }
1236
1237         if (flags & LCME_FL_STALE) {
1238                 fprintf(stderr, "error: %s: setting '%s' is not supported\n",
1239                         progname, comp_flags_table[LCME_FL_STALE].cfn_name);
1240                 return -EINVAL;
1241         }
1242
1243         return LLAPI_LAYOUT_ITER_CONT;
1244 }
1245
1246 static inline int mirror_sanity_check_one(struct llapi_layout *layout)
1247 {
1248         uint64_t start, end;
1249         uint64_t pattern;
1250         int rc;
1251
1252         /* LU-10112: do not support dom+flr in phase 1 */
1253         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
1254         if (rc)
1255                 return -errno;
1256
1257         rc = llapi_layout_pattern_get(layout, &pattern);
1258         if (rc)
1259                 return -errno;
1260
1261         if (pattern == LOV_PATTERN_MDT || pattern == LLAPI_LAYOUT_MDT) {
1262                 fprintf(stderr, "error: %s: doesn't support dom+flr for now\n",
1263                         progname);
1264                 return -ENOTSUP;
1265         }
1266
1267         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_LAST);
1268         if (rc)
1269                 return -errno;
1270
1271         rc = llapi_layout_comp_extent_get(layout, &start, &end);
1272         if (rc)
1273                 return -errno;
1274
1275         if (end != LUSTRE_EOF) {
1276                 fprintf(stderr, "error: %s: mirror layout doesn't reach eof\n",
1277                         progname);
1278                 return -EINVAL;
1279         }
1280
1281         rc = llapi_layout_comp_iterate(layout, mirror_sanity_check_flags, NULL);
1282         return rc;
1283 }
1284
1285 /**
1286  * enum mirror_flags - Flags for extending a mirrored file.
1287  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1288  *             in case the victim file(s) contains the same data as the
1289  *             original mirrored file.
1290  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1291  * @MF_COMP_ID: specified component id instead of mirror id
1292  *
1293  * Flags for extending a mirrored file.
1294  */
1295 enum mirror_flags {
1296         MF_NO_VERIFY    = 0x1,
1297         MF_DESTROY      = 0x2,
1298         MF_COMP_ID      = 0x4,
1299 };
1300
1301 /**
1302  * mirror_create_sanity_check() - Check mirror list.
1303  * @list:  A linked list that stores the mirror arguments.
1304  *
1305  * This function does a sanity check on @list for creating
1306  * a mirrored file.
1307  *
1308  * Return: 0 on success or a negative error code on failure.
1309  */
1310 static int mirror_create_sanity_check(const char *fname,
1311                                       struct mirror_args *list)
1312 {
1313         int rc = 0;
1314         bool has_m_file = false;
1315         bool has_m_layout = false;
1316
1317         if (list == NULL)
1318                 return -EINVAL;
1319
1320         if (fname) {
1321                 struct llapi_layout *layout;
1322
1323                 layout = llapi_layout_get_by_path(fname, 0);
1324                 if (!layout) {
1325                         fprintf(stderr,
1326                                 "error: %s: file '%s' couldn't get layout\n",
1327                                 progname, fname);
1328                         return -ENODATA;
1329                 }
1330
1331                 rc = mirror_sanity_check_one(layout);
1332                 llapi_layout_free(layout);
1333
1334                 if (rc)
1335                         return rc;
1336         }
1337
1338         while (list != NULL) {
1339                 if (list->m_file != NULL) {
1340                         has_m_file = true;
1341                         llapi_layout_free(list->m_layout);
1342
1343                         list->m_layout =
1344                                 llapi_layout_get_by_path(list->m_file, 0);
1345                         if (list->m_layout == NULL) {
1346                                 fprintf(stderr,
1347                                         "error: %s: file '%s' has no layout\n",
1348                                         progname, list->m_file);
1349                                 return -ENODATA;
1350                         }
1351                 } else {
1352                         has_m_layout = true;
1353                         if (list->m_layout == NULL) {
1354                                 fprintf(stderr, "error: %s: no mirror layout\n",
1355                                         progname);
1356                                 return -EINVAL;
1357                         }
1358                 }
1359
1360                 rc = mirror_sanity_check_one(list->m_layout);
1361                 if (rc)
1362                         return rc;
1363
1364                 list = list->m_next;
1365         }
1366
1367         if (has_m_file && has_m_layout) {
1368                 fprintf(stderr,
1369                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1370                         progname);
1371                 return -EINVAL;
1372         }
1373
1374         return 0;
1375 }
1376
1377 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1378 {
1379         __u32 mirror_flags = *(__u32 *)cbdata;
1380         uint32_t flags;
1381         int rc;
1382
1383         rc = llapi_layout_comp_flags_get(layout, &flags);
1384         if (rc < 0)
1385                 return rc;
1386
1387         if (!flags) {
1388                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1389                 if (rc)
1390                         return rc;
1391         }
1392
1393         return LLAPI_LAYOUT_ITER_CONT;
1394 }
1395
1396 /**
1397  * mirror_create() - Create a mirrored file.
1398  * @fname:        The file to be created.
1399  * @mirror_list:  A linked list that stores the mirror arguments.
1400  *
1401  * This function creates a mirrored file @fname with the mirror(s)
1402  * from @mirror_list.
1403  *
1404  * Return: 0 on success or a negative error code on failure.
1405  */
1406 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1407 {
1408         struct llapi_layout *layout = NULL;
1409         struct mirror_args *cur_mirror = NULL;
1410         uint16_t mirror_count = 0;
1411         int i = 0;
1412         int rc = 0;
1413
1414         rc = mirror_create_sanity_check(NULL, mirror_list);
1415         if (rc)
1416                 return rc;
1417
1418         cur_mirror = mirror_list;
1419         while (cur_mirror != NULL) {
1420                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1421                                                mirror_set_flags,
1422                                                &cur_mirror->m_flags);
1423                 if (rc) {
1424                         rc = -errno;
1425                         fprintf(stderr, "%s: failed to set mirror flags\n",
1426                                 progname);
1427                         goto error;
1428                 }
1429
1430                 for (i = 0; i < cur_mirror->m_count; i++) {
1431                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1432                         if (rc) {
1433                                 rc = -errno;
1434                                 fprintf(stderr, "error: %s: "
1435                                         "merge layout failed: %s\n",
1436                                         progname, strerror(errno));
1437                                 goto error;
1438                         }
1439                 }
1440                 mirror_count += cur_mirror->m_count;
1441                 cur_mirror = cur_mirror->m_next;
1442         }
1443
1444         if (layout == NULL) {
1445                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1446                 return -EINVAL;
1447         }
1448
1449         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1450         if (rc) {
1451                 rc = -errno;
1452                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1453                         progname, strerror(errno));
1454                 goto error;
1455         }
1456
1457         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1458                                   layout);
1459         if (rc >= 0) {
1460                 close(rc);
1461                 rc = 0;
1462         }
1463
1464 error:
1465         llapi_layout_free(layout);
1466         return rc;
1467 }
1468
1469 /**
1470  * Compare files and check lease on @fd.
1471  *
1472  * \retval bytes number of bytes are the same
1473  */
1474 static ssize_t mirror_file_compare(int fd, int fdv)
1475 {
1476         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1477         void *buf;
1478         ssize_t bytes_done = 0;
1479         ssize_t bytes_read = 0;
1480
1481         buf = malloc(buflen * 2);
1482         if (!buf)
1483                 return -ENOMEM;
1484
1485         while (1) {
1486                 if (!llapi_lease_check(fd)) {
1487                         bytes_done = -EBUSY;
1488                         break;
1489                 }
1490
1491                 bytes_read = read(fd, buf, buflen);
1492                 if (bytes_read <= 0)
1493                         break;
1494
1495                 if (bytes_read != read(fdv, buf + buflen, buflen))
1496                         break;
1497
1498                 /* XXX: should compute the checksum on each buffer and then
1499                  * compare checksum to avoid cache collision */
1500                 if (memcmp(buf, buf + buflen, bytes_read))
1501                         break;
1502
1503                 bytes_done += bytes_read;
1504         }
1505
1506         free(buf);
1507
1508         return bytes_done;
1509 }
1510
1511 static int mirror_extend_file(const char *fname, const char *victim_file,
1512                               enum mirror_flags mirror_flags)
1513 {
1514         int fd = -1;
1515         int fdv = -1;
1516         struct stat stbuf;
1517         struct stat stbuf_v;
1518         struct ll_ioc_lease *data = NULL;
1519         int rc;
1520
1521         fd = open(fname, O_RDWR);
1522         if (fd < 0) {
1523                 error_loc = "open source file";
1524                 rc = -errno;
1525                 goto out;
1526         }
1527
1528         fdv = open(victim_file, O_RDWR);
1529         if (fdv < 0) {
1530                 error_loc = "open target file";
1531                 rc = -errno;
1532                 goto out;
1533         }
1534
1535         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1536                 error_loc = "stat source or target file";
1537                 rc = -errno;
1538                 goto out;
1539         }
1540
1541         if (stbuf.st_dev != stbuf_v.st_dev) {
1542                 error_loc = "stat source and target file";
1543                 rc = -EXDEV;
1544                 goto out;
1545         }
1546
1547         /* mirrors should be of the same size */
1548         if (stbuf.st_size != stbuf_v.st_size) {
1549                 error_loc = "file sizes don't match";
1550                 rc = -EINVAL;
1551                 goto out;
1552         }
1553
1554         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1555         if (rc < 0) {
1556                 error_loc = "cannot get lease";
1557                 goto out;
1558         }
1559
1560         if (!(mirror_flags & MF_NO_VERIFY)) {
1561                 ssize_t ret;
1562                 /* mirrors should have the same contents */
1563                 ret = mirror_file_compare(fd, fdv);
1564                 if (ret != stbuf.st_size) {
1565                         error_loc = "file busy or contents don't match";
1566                         rc = ret < 0 ? ret : -EINVAL;
1567                         goto out;
1568                 }
1569         }
1570
1571         /* Get rid of caching pages from clients */
1572         rc = llapi_file_flush(fd);
1573         if (rc < 0) {
1574                 error_loc = "cannot get data version";
1575                 goto out;
1576         }
1577
1578         rc = llapi_file_flush(fdv);
1579         if (rc < 0) {
1580                 error_loc = "cannot get data version";
1581                 goto out;
1582
1583         }
1584
1585         /* Make sure we keep original atime/mtime values */
1586         rc = migrate_copy_timestamps(fd, fdv);
1587         if (rc < 0) {
1588                 error_loc = "cannot copy timestamp";
1589                 goto out;
1590         }
1591
1592         /* Atomically put lease, merge layouts and close. */
1593         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1594         if (!data) {
1595                 error_loc = "memory allocation";
1596                 goto out;
1597         }
1598         data->lil_mode = LL_LEASE_UNLCK;
1599         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1600         data->lil_count = 1;
1601         data->lil_ids[0] = fdv;
1602         rc = llapi_lease_set(fd, data);
1603         if (rc < 0) {
1604                 error_loc = "cannot merge layout";
1605                 goto out;
1606         } else if (rc == 0) {
1607                 rc = -EBUSY;
1608                 error_loc = "lost lease lock";
1609                 goto out;
1610         }
1611         rc = 0;
1612
1613 out:
1614         if (data)
1615                 free(data);
1616         if (fd >= 0)
1617                 close(fd);
1618         if (fdv >= 0)
1619                 close(fdv);
1620         if (!rc)
1621                 (void) unlink(victim_file);
1622         if (rc < 0)
1623                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1624                         progname, fname, error_loc, strerror(-rc));
1625         return rc;
1626 }
1627
1628 static int mirror_extend_layout(char *name, struct llapi_layout *layout)
1629 {
1630         struct ll_ioc_lease *data = NULL;
1631         int fd = -1;
1632         int fdv = -1;
1633         int rc;
1634
1635         rc = migrate_open_files(name, 0, NULL, layout, &fd, &fdv);
1636         if (rc < 0)
1637                 goto out;
1638
1639         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1640         if (rc < 0) {
1641                 error_loc = "cannot get lease";
1642                 goto out;
1643         }
1644
1645         rc = migrate_nonblock(fd, fdv);
1646         if (rc < 0) {
1647                 llapi_lease_release(fd);
1648                 goto out;
1649         }
1650
1651         /* Atomically put lease, merge layouts and close. */
1652         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1653         if (!data) {
1654                 error_loc = "memory allocation";
1655                 goto out;
1656         }
1657         data->lil_mode = LL_LEASE_UNLCK;
1658         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1659         data->lil_count = 1;
1660         data->lil_ids[0] = fdv;
1661         rc = llapi_lease_set(fd, data);
1662         if (rc < 0) {
1663                 error_loc = "cannot merge layout";
1664                 goto out;
1665         } else if (rc == 0) {
1666                 rc = -EBUSY;
1667                 error_loc = "lost lease lock";
1668                 goto out;
1669         }
1670         rc = 0;
1671
1672 out:
1673         if (data)
1674                 free(data);
1675         if (fd >= 0)
1676                 close(fd);
1677         if (fdv >= 0)
1678                 close(fdv);
1679         if (rc < 0)
1680                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1681                         progname, name, error_loc, strerror(-rc));
1682         return rc;
1683 }
1684
1685 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1686                          enum mirror_flags mirror_flags)
1687 {
1688         int rc;
1689
1690         rc = mirror_create_sanity_check(fname, mirror_list);
1691         if (rc)
1692                 return rc;
1693
1694         while (mirror_list) {
1695                 if (mirror_list->m_file != NULL) {
1696                         rc = mirror_extend_file(fname, mirror_list->m_file,
1697                                                 mirror_flags);
1698                 } else {
1699                         __u32 mirror_count = mirror_list->m_count;
1700
1701                         while (mirror_count > 0) {
1702                                 rc = mirror_extend_layout(fname,
1703                                                         mirror_list->m_layout);
1704                                 if (rc)
1705                                         break;
1706
1707                                 --mirror_count;
1708                         }
1709                 }
1710                 if (rc)
1711                         break;
1712
1713                 mirror_list = mirror_list->m_next;
1714         }
1715
1716         return rc;
1717 }
1718
1719 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
1720 {
1721         uint32_t id;
1722         int rc;
1723
1724         rc = llapi_layout_mirror_id_get(layout, &id);
1725         if (rc < 0)
1726                 return rc;
1727
1728         if ((__u16)id == *(__u16 *)cbdata)
1729                 return LLAPI_LAYOUT_ITER_STOP;
1730
1731         return LLAPI_LAYOUT_ITER_CONT;
1732 }
1733
1734 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
1735 {
1736         uint32_t id;
1737         int rc;
1738
1739         rc = llapi_layout_comp_id_get(layout, &id);
1740         if (rc < 0)
1741                 return rc;
1742
1743         if (id == *(__u32 *)cbdata)
1744                 return LLAPI_LAYOUT_ITER_STOP;
1745
1746         return LLAPI_LAYOUT_ITER_CONT;
1747 }
1748 static int mirror_split(const char *fname, __u32 id,
1749                         enum mirror_flags mflags, const char *victim_file)
1750 {
1751         struct llapi_layout *layout;
1752         char parent[PATH_MAX];
1753         char victim[PATH_MAX];
1754         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
1755         char *ptr;
1756         struct ll_ioc_lease *data;
1757         uint16_t mirror_count;
1758         int mdt_index;
1759         int fd, fdv;
1760         int rc;
1761
1762         /* check fname contains mirror with mirror_id/comp_id */
1763         layout = llapi_layout_get_by_path(fname, 0);
1764         if (!layout) {
1765                 fprintf(stderr,
1766                         "error %s: file '%s' couldn't get layout\n",
1767                         progname, fname);
1768                 return -EINVAL;
1769         }
1770
1771         rc = mirror_sanity_check_one(layout);
1772         if (rc)
1773                 goto free_layout;
1774
1775         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
1776         if (rc) {
1777                 fprintf(stderr,
1778                         "error %s: file '%s' couldn't get mirror count\n",
1779                         progname, fname);
1780                 goto free_layout;
1781         }
1782         if (mirror_count < 2) {
1783                 fprintf(stderr,
1784                         "error %s: file '%s' has %d component, cannot split\n",
1785                         progname, fname, mirror_count);
1786                 goto free_layout;
1787         }
1788
1789         if (mflags & MF_COMP_ID) {
1790                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
1791                 id = mirror_id_of(id);
1792         } else {
1793                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
1794         }
1795         if (rc < 0) {
1796                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
1797                         progname, fname);
1798                 goto free_layout;
1799         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
1800                 fprintf(stderr,
1801                      "error %s: file '%s' does not contain mirror with id %u\n",
1802                         progname, fname, id);
1803                 goto free_layout;
1804         }
1805
1806         fd = open(fname, O_RDWR);
1807         if (fd < 0) {
1808                 fprintf(stderr,
1809                         "error %s: open file '%s' failed: %s\n",
1810                         progname, fname, strerror(errno));
1811                 goto free_layout;
1812         }
1813
1814         /* get victim file directory pathname */
1815         if (strlen(fname) > sizeof(parent) - 1) {
1816                 fprintf(stderr, "error %s: file name of '%s' too long\n",
1817                         progname, fname);
1818                 rc = -ERANGE;
1819                 goto close_fd;
1820         }
1821         strncpy(parent, fname, sizeof(parent));
1822         ptr = strrchr(parent, '/');
1823         if (ptr == NULL) {
1824                 if (getcwd(parent, sizeof(parent)) == NULL) {
1825                         fprintf(stderr, "error %s: getcwd failed: %s\n",
1826                                 progname, strerror(errno));
1827                         rc = -errno;
1828                         goto close_fd;
1829                 }
1830         } else {
1831                 if (ptr == parent)
1832                         ptr = parent + 1;
1833                 *ptr = '\0';
1834         }
1835
1836         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
1837         if (rc < 0) {
1838                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
1839                         progname, fname);
1840                 goto close_fd;
1841         }
1842
1843         if (victim_file == NULL) {
1844                 /* use a temp file to store the splitted layout */
1845                 if (mflags & MF_DESTROY) {
1846                         fdv = llapi_create_volatile_idx(parent, mdt_index,
1847                                                         O_LOV_DELAY_CREATE);
1848                 } else {
1849                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
1850                                  fname, id);
1851                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
1852                 }
1853         } else {
1854                 /* user specified victim file */
1855                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
1856         }
1857
1858         if (fdv < 0) {
1859                 fprintf(stderr,
1860                         "error %s: create victim file failed: %s\n",
1861                         progname, strerror(errno));
1862                 goto close_fd;
1863         }
1864
1865         /* get lease lock of fname */
1866         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
1867         if (rc < 0) {
1868                 fprintf(stderr,
1869                         "error %s: cannot get lease of file '%s': %d\n",
1870                         progname, fname, rc);
1871                 goto close_victim;
1872         }
1873
1874         /* Atomatically put lease, split layouts and close. */
1875         data = malloc(offsetof(typeof(*data), lil_ids[2]));
1876         if (!data) {
1877                 rc = -ENOMEM;
1878                 goto close_victim;
1879         }
1880
1881         data->lil_mode = LL_LEASE_UNLCK;
1882         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
1883         data->lil_count = 2;
1884         data->lil_ids[0] = fdv;
1885         data->lil_ids[1] = id;
1886         rc = llapi_lease_set(fd, data);
1887         if (rc <= 0) {
1888                 if (rc == 0) /* lost lease lock */
1889                         rc = -EBUSY;
1890                 fprintf(stderr,
1891                         "error %s: cannot split '%s': %s\n",
1892                         progname, fname, strerror(-rc));
1893         } else {
1894                 rc = 0;
1895         }
1896         free(data);
1897
1898 close_victim:
1899         close(fdv);
1900 close_fd:
1901         close(fd);
1902 free_layout:
1903         llapi_layout_free(layout);
1904         return rc;
1905 }
1906
1907 /**
1908  * Parse a string containing an target index list into an array of integers.
1909  *
1910  * The input string contains a comma delimited list of individual
1911  * indices and ranges, for example "1,2-4,7". Add the indices into the
1912  * \a tgts array and remove duplicates.
1913  *
1914  * \param[out] tgts    array to store indices in
1915  * \param[in] size     size of \a tgts array
1916  * \param[in] offset   starting index in \a tgts
1917  * \param[in] arg      string containing OST index list
1918  *
1919  * \retval positive    number of indices in \a tgts
1920  * \retval -EINVAL     unable to parse \a arg
1921  */
1922 static int parse_targets(__u32 *tgts, int size, int offset, char *arg)
1923 {
1924         int rc;
1925         int nr = offset;
1926         int slots = size - offset;
1927         char *ptr = NULL;
1928         bool end_of_loop;
1929
1930         if (arg == NULL)
1931                 return -EINVAL;
1932
1933         end_of_loop = false;
1934         while (!end_of_loop) {
1935                 int start_index;
1936                 int end_index;
1937                 int i;
1938                 char *endptr = NULL;
1939
1940                 rc = -EINVAL;
1941
1942                 ptr = strchrnul(arg, ',');
1943
1944                 end_of_loop = *ptr == '\0';
1945                 *ptr = '\0';
1946
1947                 start_index = strtol(arg, &endptr, 0);
1948                 if (endptr == arg) /* no data at all */
1949                         break;
1950                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
1951                         break;
1952
1953                 end_index = start_index;
1954                 if (*endptr == '-') {
1955                         end_index = strtol(endptr + 1, &endptr, 0);
1956                         if (*endptr != '\0')
1957                                 break;
1958                         if (end_index < start_index)
1959                                 break;
1960                 }
1961
1962                 for (i = start_index; i <= end_index && slots > 0; i++) {
1963                         int j;
1964
1965                         /* remove duplicate */
1966                         for (j = 0; j < offset; j++) {
1967                                 if (tgts[j] == i)
1968                                         break;
1969                         }
1970                         if (j == offset) { /* no duplicate */
1971                                 tgts[nr++] = i;
1972                                 --slots;
1973                         }
1974                 }
1975                 if (slots == 0 && i < end_index)
1976                         break;
1977
1978                 *ptr = ',';
1979                 arg = ++ptr;
1980                 offset = nr;
1981                 rc = 0;
1982         }
1983         if (!end_of_loop && ptr != NULL)
1984                 *ptr = ',';
1985
1986         return rc < 0 ? rc : nr;
1987 }
1988
1989 struct lfs_setstripe_args {
1990         unsigned long long       lsa_comp_end;
1991         unsigned long long       lsa_stripe_size;
1992         long long                lsa_stripe_count;
1993         long long                lsa_stripe_off;
1994         __u32                    lsa_comp_flags;
1995         __u32                    lsa_comp_neg_flags;
1996         unsigned long long       lsa_pattern;
1997         unsigned int             lsa_mirror_count;
1998         int                      lsa_nr_tgts;
1999         bool                     lsa_first_comp;
2000         __u32                   *lsa_tgts;
2001         char                    *lsa_pool_name;
2002 };
2003
2004 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2005 {
2006         unsigned int mirror_count = lsa->lsa_mirror_count;
2007         bool first_comp = lsa->lsa_first_comp;
2008
2009         memset(lsa, 0, sizeof(*lsa));
2010
2011         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2012         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2013         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2014         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2015         lsa->lsa_pool_name = NULL;
2016
2017         lsa->lsa_mirror_count = mirror_count;
2018         lsa->lsa_first_comp = first_comp;
2019 }
2020
2021 /**
2022  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2023  * @lsa: Stripe options to be initialized and inherited.
2024  *
2025  * This function initializes stripe options in @lsa and inherit
2026  * stripe_size, stripe_count and OST pool_name options.
2027  *
2028  * Return: void.
2029  */
2030 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2031 {
2032         unsigned long long stripe_size;
2033         long long stripe_count;
2034         char *pool_name = NULL;
2035
2036         stripe_size = lsa->lsa_stripe_size;
2037         stripe_count = lsa->lsa_stripe_count;
2038         pool_name = lsa->lsa_pool_name;
2039
2040         setstripe_args_init(lsa);
2041
2042         lsa->lsa_stripe_size = stripe_size;
2043         lsa->lsa_stripe_count = stripe_count;
2044         lsa->lsa_pool_name = pool_name;
2045 }
2046
2047 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2048 {
2049         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2050                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2051                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2052                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2053                 lsa->lsa_pool_name != NULL ||
2054                 lsa->lsa_comp_end != 0);
2055 }
2056
2057 /**
2058  * comp_args_to_layout() - Create or extend a composite layout.
2059  * @composite:       Pointer to the composite layout.
2060  * @lsa:             Stripe options for the new component.
2061  *
2062  * This function creates or extends a composite layout by adding a new
2063  * component with stripe options from @lsa.
2064  *
2065  * Return: 0 on success or an error code on failure.
2066  */
2067 static int comp_args_to_layout(struct llapi_layout **composite,
2068                                struct lfs_setstripe_args *lsa,
2069                                bool set_extent)
2070 {
2071         struct llapi_layout *layout = *composite;
2072         uint64_t prev_end = 0;
2073         int i = 0, rc;
2074
2075         if (layout == NULL) {
2076                 layout = llapi_layout_alloc();
2077                 if (layout == NULL) {
2078                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2079                                 strerror(errno));
2080                         return -ENOMEM;
2081                 }
2082                 *composite = layout;
2083         } else {
2084                 uint64_t start;
2085
2086                 /* Get current component extent, current component
2087                  * must be the tail component. */
2088                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2089                 if (rc) {
2090                         fprintf(stderr, "Get comp extent failed. %s\n",
2091                                 strerror(errno));
2092                         return rc;
2093                 }
2094
2095                 if (lsa->lsa_first_comp)
2096                         prev_end = 0;
2097
2098                 if (lsa->lsa_first_comp)
2099                         rc = llapi_layout_add_first_comp(layout);
2100                 else
2101                         rc = llapi_layout_comp_add(layout);
2102                 if (rc) {
2103                         fprintf(stderr, "Add component failed. %s\n",
2104                                 strerror(errno));
2105                         return rc;
2106                 }
2107         }
2108         /* reset lsa_first_comp */
2109         lsa->lsa_first_comp = false;
2110
2111         if (set_extent) {
2112                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2113                                                   lsa->lsa_comp_end);
2114                 if (rc) {
2115                         fprintf(stderr, "Set extent [%lu, %llu) failed. %s\n",
2116                                 prev_end, lsa->lsa_comp_end, strerror(errno));
2117                         return rc;
2118                 }
2119         }
2120
2121         /* Data-on-MDT component setting */
2122         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2123                 /* In case of Data-on-MDT patterns the only extra option
2124                  * applicable is stripe size option. */
2125                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2126                         fprintf(stderr, "Option 'stripe-count' can't be "
2127                                 "specified with Data-on-MDT component: %lld\n",
2128                                 lsa->lsa_stripe_count);
2129                         return -EINVAL;
2130                 }
2131                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT) {
2132                         fprintf(stderr, "Option 'stripe-size' can't be "
2133                                 "specified with Data-on-MDT component: %llu\n",
2134                                 lsa->lsa_stripe_size);
2135                         return -EINVAL;
2136                 }
2137                 if (lsa->lsa_nr_tgts != 0) {
2138                         fprintf(stderr, "Option 'ost-list' can't be specified "
2139                                 "with Data-on-MDT component: '%i'\n",
2140                                 lsa->lsa_nr_tgts);
2141                         return -EINVAL;
2142                 }
2143                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2144                         fprintf(stderr, "Option 'stripe-offset' can't be "
2145                                 "specified with Data-on-MDT component: %lld\n",
2146                                 lsa->lsa_stripe_off);
2147                         return -EINVAL;
2148                 }
2149                 if (lsa->lsa_pool_name != 0) {
2150                         fprintf(stderr, "Option 'pool' can't be specified "
2151                                 "with Data-on-MDT component: '%s'\n",
2152                                 lsa->lsa_pool_name);
2153                         return -EINVAL;
2154                 }
2155
2156                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2157                 if (rc) {
2158                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2159                                 lsa->lsa_pattern, strerror(errno));
2160                         return rc;
2161                 }
2162                 /* Data-on-MDT component has always single stripe up to end */
2163                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2164         }
2165
2166         rc = llapi_layout_stripe_size_set(layout, lsa->lsa_stripe_size);
2167         if (rc) {
2168                 fprintf(stderr, "Set stripe size %llu failed: %s\n",
2169                         lsa->lsa_stripe_size, strerror(errno));
2170                 return rc;
2171         }
2172
2173         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2174         if (rc) {
2175                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2176                         lsa->lsa_stripe_count, strerror(errno));
2177                 return rc;
2178         }
2179
2180         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2181         if (rc) {
2182                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2183                         lsa->lsa_comp_flags, strerror(errno));
2184                 return rc;
2185         }
2186
2187         if (lsa->lsa_pool_name != NULL) {
2188                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2189                 if (rc) {
2190                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2191                                 lsa->lsa_pool_name, strerror(errno));
2192                         return rc;
2193                 }
2194         } else {
2195                 rc = llapi_layout_pool_name_set(layout, "");
2196                 if (rc) {
2197                         fprintf(stderr, "Clear pool name failed: %s\n",
2198                                 strerror(errno));
2199                         return rc;
2200                 }
2201         }
2202
2203         if (lsa->lsa_nr_tgts > 0) {
2204                 if (lsa->lsa_stripe_count > 0 &&
2205                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2206                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2207                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2208                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2209                                 lsa->lsa_stripe_count, lsa->lsa_nr_tgts);
2210                         return -EINVAL;
2211                 }
2212                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2213                         rc = llapi_layout_ost_index_set(layout, i,
2214                                                         lsa->lsa_tgts[i]);
2215                         if (rc)
2216                                 break;
2217                 }
2218         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2219                    lsa->lsa_stripe_off != -1) {
2220                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2221         }
2222         if (rc) {
2223                 fprintf(stderr, "Set ost index %d failed. %s\n",
2224                         i, strerror(errno));
2225                 return rc;
2226         }
2227
2228         return 0;
2229 }
2230
2231 static int build_component(struct llapi_layout **layout,
2232                            struct lfs_setstripe_args *lsa, bool set_extent)
2233 {
2234         int rc;
2235
2236         rc = comp_args_to_layout(layout, lsa, set_extent);
2237         if (rc)
2238                 return rc;
2239
2240         if (lsa->lsa_mirror_count > 0) {
2241                 rc = llapi_layout_mirror_count_set(*layout,
2242                                                    lsa->lsa_mirror_count);
2243                 if (rc)
2244                         return rc;
2245
2246                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2247                 if (rc)
2248                         return rc;
2249                 lsa->lsa_mirror_count = 0;
2250         }
2251
2252         return rc;
2253 }
2254
2255 static int build_layout_from_yaml_node(struct cYAML *node,
2256                                        struct llapi_layout **layout,
2257                                        struct lfs_setstripe_args *lsa,
2258                                        __u32 *osts)
2259 {
2260         char *string;
2261         int rc = 0;
2262
2263         while (node) {
2264                 if (node->cy_type == CYAML_TYPE_OBJECT) {
2265                         /* go deep to sub blocks */
2266                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2267                                                          lsa, osts);
2268                         if (rc)
2269                                 return rc;
2270                 } else {
2271                         if (node->cy_string == NULL)
2272                                 return -EINVAL;
2273
2274                         string = node->cy_string;
2275                         /* skip leading lmm_ if present, to simplify parsing */
2276                         if (strncmp(string, "lmm_", 4) == 0)
2277                                 string += 4;
2278
2279                         if (node->cy_type == CYAML_TYPE_STRING) {
2280                                 if (!strcmp(string, "lcme_extent.e_end")) {
2281                                         if (!strcmp(node->cy_valuestring, "EOF") ||
2282                                             !strcmp(node->cy_valuestring, "eof"))
2283                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2284                                 } else if (!strcmp(string, "pool")) {
2285                                         lsa->lsa_pool_name = node->cy_valuestring;
2286                                 } else if (!strcmp(string, "pattern")) {
2287                                         if (!strcmp(node->cy_valuestring, "mdt"))
2288                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2289                                 }
2290                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2291                                 if (!strcmp(string, "lcm_mirror_count")) {
2292                                         lsa->lsa_mirror_count = node->cy_valueint;
2293                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
2294                                         if (node->cy_valueint != 0 || *layout != NULL) {
2295                                                 rc = build_component(layout, lsa, true);
2296                                                 if (rc)
2297                                                         return rc;
2298                                         }
2299
2300                                         if (node->cy_valueint == 0)
2301                                                 lsa->lsa_first_comp = true;
2302
2303                                         /* initialize lsa */
2304                                         setstripe_args_init(lsa);
2305                                         lsa->lsa_tgts = osts;
2306                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
2307                                         if (node->cy_valueint == -1)
2308                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2309                                         else
2310                                                 lsa->lsa_comp_end = node->cy_valueint;
2311                                 } else if (!strcmp(string, "stripe_count")) {
2312                                         lsa->lsa_stripe_count = node->cy_valueint;
2313                                 } else if (!strcmp(string, "stripe_size")) {
2314                                         lsa->lsa_stripe_size = node->cy_valueint;
2315                                 } else if (!strcmp(string, "stripe_offset")) {
2316                                         lsa->lsa_stripe_off = node->cy_valueint;
2317                                 } else if (!strcmp(string, "l_ost_idx")) {
2318                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
2319                                         lsa->lsa_nr_tgts++;
2320                                 }
2321                         }
2322                 }
2323                 node = node->cy_next;
2324         }
2325
2326         return rc;
2327 }
2328
2329 static int lfs_comp_create_from_yaml(char *template,
2330                                      struct llapi_layout **layout,
2331                                      struct lfs_setstripe_args *lsa,
2332                                      __u32 *osts)
2333 {
2334         struct cYAML *tree = NULL, *err_rc = NULL;
2335         int rc = 0;
2336
2337         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
2338         if (!tree) {
2339                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
2340                         progname, template);
2341                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
2342                                   "can't parse", &err_rc);
2343                 cYAML_print_tree2file(stderr, err_rc);
2344                 cYAML_free_tree(err_rc);
2345                 rc = -EINVAL;
2346                 goto err;
2347         }
2348
2349         /* initialize lsa for plain file */
2350         setstripe_args_init(lsa);
2351         lsa->lsa_tgts = osts;
2352
2353         rc = build_layout_from_yaml_node(tree, layout, lsa, osts);
2354         if (rc) {
2355                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
2356                         progname, template);
2357                 goto err;
2358         } else {
2359                 rc = build_component(layout, lsa, *layout != NULL);
2360         }
2361         /* clean clean lsa */
2362         setstripe_args_init(lsa);
2363
2364 err:
2365         if (tree)
2366                 cYAML_free_tree(tree);
2367         return rc;
2368 }
2369
2370 /* In 'lfs setstripe --component-add' mode, we need to fetch the extent
2371  * end of the last component in the existing file, and adjust the
2372  * first extent start of the components to be added accordingly. */
2373 static int adjust_first_extent(char *fname, struct llapi_layout *layout)
2374 {
2375         struct llapi_layout *head;
2376         uint64_t start, end, stripe_size, prev_end = 0;
2377         int rc;
2378
2379         if (layout == NULL) {
2380                 fprintf(stderr,
2381                         "%s setstripe: layout must be specified\n",
2382                         progname);
2383                 return -EINVAL;
2384         }
2385
2386         errno = 0;
2387         head = llapi_layout_get_by_path(fname, 0);
2388         if (head == NULL) {
2389                 fprintf(stderr,
2390                         "%s setstripe: cannot read layout from '%s': %s\n",
2391                         progname, fname, strerror(errno));
2392                 return -EINVAL;
2393         } else if (errno == ENODATA) {
2394                 /* file without LOVEA, this component-add will be turned
2395                  * into a component-create. */
2396                 llapi_layout_free(head);
2397                 return -ENODATA;
2398         } else if (!llapi_layout_is_composite(head)) {
2399                 fprintf(stderr, "%s setstripe: '%s' not a composite file\n",
2400                         progname, fname);
2401                 llapi_layout_free(head);
2402                 return -EINVAL;
2403         }
2404
2405         rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
2406         if (rc) {
2407                 fprintf(stderr, "%s setstripe: cannot get prev extent: %s\n",
2408                         progname, strerror(errno));
2409                 llapi_layout_free(head);
2410                 return rc;
2411         }
2412
2413         llapi_layout_free(head);
2414
2415         /* Make sure we use the first component of the layout to be added. */
2416         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
2417         if (rc < 0) {
2418                 fprintf(stderr,
2419                         "%s setstripe: cannot move component cursor: %s\n",
2420                         progname, strerror(errno));
2421                 return rc;
2422         }
2423
2424         rc = llapi_layout_comp_extent_get(layout, &start, &end);
2425         if (rc) {
2426                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2427                         progname, strerror(errno));
2428                 return rc;
2429         }
2430
2431         if (start > prev_end || end <= prev_end) {
2432                 fprintf(stderr,
2433                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
2434                         progname, start, end, prev_end);
2435                 return -EINVAL;
2436         }
2437
2438         rc = llapi_layout_stripe_size_get(layout, &stripe_size);
2439         if (rc) {
2440                 fprintf(stderr, "%s setstripe: cannot get stripe size: %s\n",
2441                         progname, strerror(errno));
2442                 return rc;
2443         }
2444
2445         if (stripe_size != LLAPI_LAYOUT_DEFAULT &&
2446             (prev_end & (stripe_size - 1))) {
2447                 fprintf(stderr,
2448                         "%s setstripe: stripe size %lu not aligned with %lu\n",
2449                         progname, stripe_size, prev_end);
2450                 return -EINVAL;
2451         }
2452
2453         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
2454         if (rc) {
2455                 fprintf(stderr,
2456                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
2457                         progname, prev_end, end, strerror(errno));
2458                 return rc;
2459         }
2460
2461         return 0;
2462 }
2463
2464 static inline bool arg_is_eof(char *arg)
2465 {
2466         return !strncmp(arg, "-1", strlen("-1")) ||
2467                !strncmp(arg, "EOF", strlen("EOF")) ||
2468                !strncmp(arg, "eof", strlen("eof"));
2469 }
2470
2471 /**
2472  * lfs_mirror_alloc() - Allocate a mirror argument structure.
2473  *
2474  * Return: Valid mirror_args pointer on success and
2475  *         NULL if memory allocation fails.
2476  */
2477 static struct mirror_args *lfs_mirror_alloc(void)
2478 {
2479         struct mirror_args *mirror = NULL;
2480
2481         while (1) {
2482                 mirror = calloc(1, sizeof(*mirror));
2483                 if (mirror != NULL)
2484                         break;
2485
2486                 sleep(1);
2487         }
2488
2489         return mirror;
2490 }
2491
2492 /**
2493  * lfs_mirror_free() - Free memory allocated for a mirror argument
2494  *                     structure.
2495  * @mirror: Previously allocated mirror argument structure by
2496  *          lfs_mirror_alloc().
2497  *
2498  * Free memory allocated for @mirror.
2499  *
2500  * Return: void.
2501  */
2502 static void lfs_mirror_free(struct mirror_args *mirror)
2503 {
2504         if (mirror->m_layout != NULL)
2505                 llapi_layout_free(mirror->m_layout);
2506         free(mirror);
2507 }
2508
2509 /**
2510  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
2511  * @mirror_list: Previously allocated mirror list.
2512  *
2513  * Free memory allocated for @mirror_list.
2514  *
2515  * Return: void.
2516  */
2517 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
2518 {
2519         struct mirror_args *next_mirror = NULL;
2520
2521         while (mirror_list != NULL) {
2522                 next_mirror = mirror_list->m_next;
2523                 lfs_mirror_free(mirror_list);
2524                 mirror_list = next_mirror;
2525         }
2526 }
2527
2528 enum {
2529         LFS_POOL_OPT = 3,
2530         LFS_COMP_COUNT_OPT,
2531         LFS_COMP_START_OPT,
2532         LFS_COMP_FLAGS_OPT,
2533         LFS_COMP_DEL_OPT,
2534         LFS_COMP_SET_OPT,
2535         LFS_COMP_ADD_OPT,
2536         LFS_COMP_NO_VERIFY_OPT,
2537         LFS_PROJID_OPT,
2538         LFS_MIRROR_FLAGS_OPT,
2539         LFS_MIRROR_ID_OPT,
2540         LFS_MIRROR_STATE_OPT,
2541         LFS_LAYOUT_COPY,
2542         LFS_MIRROR_INDEX_OPT,
2543 };
2544
2545 /* functions */
2546 static int lfs_setstripe_internal(int argc, char **argv,
2547                                   enum setstripe_origin opc)
2548 {
2549         struct lfs_setstripe_args        lsa = { 0 };
2550         struct llapi_stripe_param       *param = NULL;
2551         struct find_param                migrate_mdt_param = {
2552                 .fp_max_depth = -1,
2553                 .fp_mdt_index = -1,
2554         };
2555         char                            *fname;
2556         int                              result = 0;
2557         int                              result2 = 0;
2558         char                            *end;
2559         int                              c;
2560         int                              delete = 0;
2561         unsigned long long               size_units = 1;
2562         bool                             migrate_mode = false;
2563         bool                             migrate_mdt_mode = false;
2564         bool                             migration_block = false;
2565         __u64                            migration_flags = 0;
2566         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
2567         int                              comp_del = 0, comp_set = 0;
2568         int                              comp_add = 0;
2569         __u32                            comp_id = 0;
2570         struct llapi_layout             *layout = NULL;
2571         struct llapi_layout             **lpp = &layout;
2572         bool                             mirror_mode = false;
2573         bool                             has_m_file = false;
2574         __u32                            mirror_count = 0;
2575         enum mirror_flags                mirror_flags = 0;
2576         struct mirror_args              *mirror_list = NULL;
2577         struct mirror_args              *new_mirror = NULL;
2578         struct mirror_args              *last_mirror = NULL;
2579         __u16                            mirror_id = 0;
2580         char                             cmd[PATH_MAX];
2581         bool from_yaml = false;
2582         bool from_copy = false;
2583         char *template = NULL;
2584
2585         struct option long_opts[] = {
2586 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
2587 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
2588         /* --block is only valid in migrate mode */
2589         { .val = 'b',   .name = "block",        .has_arg = no_argument },
2590         { .val = LFS_COMP_ADD_OPT,
2591                         .name = "comp-add",     .has_arg = no_argument },
2592         { .val = LFS_COMP_ADD_OPT,
2593                         .name = "component-add", .has_arg = no_argument },
2594         { .val = LFS_COMP_DEL_OPT,
2595                         .name = "comp-del",     .has_arg = no_argument },
2596         { .val = LFS_COMP_DEL_OPT,
2597                         .name = "component-del", .has_arg = no_argument },
2598         { .val = LFS_COMP_FLAGS_OPT,
2599                         .name = "comp-flags",   .has_arg = required_argument },
2600         { .val = LFS_COMP_FLAGS_OPT,
2601                         .name = "component-flags",
2602                                                 .has_arg = required_argument },
2603         { .val = LFS_COMP_SET_OPT,
2604                         .name = "comp-set",     .has_arg = no_argument },
2605         { .val = LFS_COMP_SET_OPT,
2606                         .name = "component-set",
2607                                                 .has_arg = no_argument},
2608         { .val = LFS_COMP_NO_VERIFY_OPT,
2609                         .name = "no-verify",    .has_arg = no_argument},
2610         { .val = LFS_MIRROR_FLAGS_OPT,
2611                         .name = "flags",        .has_arg = required_argument},
2612         { .val = LFS_MIRROR_ID_OPT,
2613                         .name = "mirror-id",    .has_arg = required_argument},
2614         { .val = LFS_LAYOUT_COPY,
2615                         .name = "copy",         .has_arg = required_argument},
2616         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
2617         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
2618         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
2619 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
2620         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
2621         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
2622         /* --non-direct is only valid in migrate mode */
2623         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
2624         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
2625         { .val = 'E',   .name = "component-end",
2626                                                 .has_arg = required_argument},
2627         { .val = 'f',   .name = "file",         .has_arg = required_argument },
2628 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
2629 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
2630 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
2631 /* find { .val = 'h',   .name = "help",         .has_arg = no_argument }, */
2632         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
2633         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
2634         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
2635         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
2636         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
2637         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
2638         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
2639         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
2640         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
2641         /* --non-block is only valid in migrate mode */
2642         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
2643         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
2644         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
2645 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2646         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
2647         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
2648 #endif
2649         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
2650 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
2651 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
2652 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
2653 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
2654         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
2655         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
2656 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
2657 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
2658 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
2659 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
2660         /* --verbose is only valid in migrate mode */
2661         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
2662         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
2663         { .name = NULL } };
2664
2665         setstripe_args_init(&lsa);
2666
2667         migrate_mode = (opc == SO_MIGRATE);
2668         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
2669
2670         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
2671         progname = cmd;
2672         while ((c = getopt_long(argc, argv,
2673                                 "bc:dDE:f:H:i:I:m:N::no:p:L:s:S:vy:", long_opts,
2674                                 NULL)) >= 0) {
2675                 switch (c) {
2676                 case 0:
2677                         /* Long options. */
2678                         break;
2679                 case LFS_COMP_ADD_OPT:
2680                         comp_add = 1;
2681                         break;
2682                 case LFS_COMP_DEL_OPT:
2683                         comp_del = 1;
2684                         break;
2685                 case LFS_COMP_FLAGS_OPT:
2686                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
2687                                                 &lsa.lsa_comp_neg_flags);
2688                         if (result != 0)
2689                                 goto usage_error;
2690                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
2691                                 fprintf(stderr, "%s: inverted flags are not supported\n",
2692                                         progname);
2693                                 goto usage_error;
2694                         }
2695                         if (lsa.lsa_comp_neg_flags & LCME_FL_STALE) {
2696                                 fprintf(stderr,
2697                                         "%s: cannot clear 'stale' flags from component. Please use lfs-mirror-resync(1) instead\n",
2698                                         progname);
2699                                 result = -EINVAL;
2700                                 goto error;
2701                         }
2702
2703                         break;
2704                 case LFS_COMP_SET_OPT:
2705                         comp_set = 1;
2706                         break;
2707                 case LFS_COMP_NO_VERIFY_OPT:
2708                         mirror_flags |= MF_NO_VERIFY;
2709                         break;
2710                 case LFS_MIRROR_ID_OPT:
2711                         mirror_id = strtoul(optarg, &end, 0);
2712                         if (*end != '\0' || mirror_id == 0) {
2713                                 fprintf(stderr,
2714                                         "%s %s: invalid mirror ID '%s'\n",
2715                                         progname, argv[0], optarg);
2716                                 goto usage_error;
2717                         }
2718                         break;
2719                 case LFS_MIRROR_FLAGS_OPT: {
2720                         __u32 flags;
2721
2722                         if (!mirror_mode || !last_mirror) {
2723                                 fprintf(stderr, "error: %s: --flags must be specified with --mirror-count|-N option\n",
2724                                         progname);
2725                                 goto usage_error;
2726                         }
2727
2728                         result = comp_str2flags(optarg, &last_mirror->m_flags,
2729                                                 &flags);
2730                         if (result != 0)
2731                                 goto usage_error;
2732
2733                         if (flags) {
2734                                 fprintf(stderr, "%s: inverted flags are not supported\n",
2735                                         progname);
2736                                 result = -EINVAL;
2737                                 goto usage_error;
2738                         }
2739                         if (last_mirror->m_flags & ~LCME_USER_FLAGS) {
2740                                 fprintf(stderr,
2741                                         "%s: unsupported mirror flags: %s\n",
2742                                         progname, optarg);
2743                                 result = -EINVAL;
2744                                 goto error;
2745                         }
2746                         break;
2747                 }
2748                 case LFS_LAYOUT_COPY:
2749                         from_copy = true;
2750                         template = optarg;
2751                         break;
2752                 case 'b':
2753                         if (!migrate_mode) {
2754                                 fprintf(stderr,
2755                                         "%s %s: -b|--block valid only for migrate command\n",
2756                                         progname, argv[0]);
2757                                 goto usage_error;
2758                         }
2759                         migration_block = true;
2760                         break;
2761                 case 'c':
2762                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
2763                         if (*end != '\0') {
2764                                 fprintf(stderr,
2765                                         "%s %s: invalid stripe count '%s'\n",
2766                                         progname, argv[0], optarg);
2767                                 goto usage_error;
2768                         }
2769
2770                         if (lsa.lsa_stripe_count == -1)
2771                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
2772                         break;
2773                 case 'd':
2774                         /* delete the default striping pattern */
2775                         delete = 1;
2776                         if (opc == SO_MIRROR_SPLIT) {
2777                                 if (has_m_file) {
2778                                         fprintf(stderr,
2779                                               "%s %s: -d cannot used with -f\n",
2780                                                 progname, argv[0]);
2781                                         goto usage_error;
2782                                 }
2783                                 mirror_flags |= MF_DESTROY;
2784                         }
2785                         break;
2786                 case 'D':
2787                         if (!migrate_mode) {
2788                                 fprintf(stderr,
2789                                         "%s %s: -D|--non-direct is valid "
2790                                         "only for migrate command\n",
2791                                         progname, argv[0]);
2792                                 goto usage_error;
2793                         }
2794                         migration_flags |= MIGRATION_NONDIRECT;
2795                         break;
2796                 case 'E':
2797                         if (lsa.lsa_comp_end != 0) {
2798                                 result = comp_args_to_layout(lpp, &lsa, true);
2799                                 if (result) {
2800                                         fprintf(stderr,
2801                                                 "%s %s: invalid layout\n",
2802                                                 progname, argv[0]);
2803                                         goto usage_error;
2804                                 }
2805
2806                                 setstripe_args_init_inherit(&lsa);
2807                         }
2808
2809                         if (arg_is_eof(optarg)) {
2810                                 lsa.lsa_comp_end = LUSTRE_EOF;
2811                         } else {
2812                                 result = llapi_parse_size(optarg,
2813                                                         &lsa.lsa_comp_end,
2814                                                         &size_units, 0);
2815                                 if (result) {
2816                                         fprintf(stderr,
2817                                                 "%s %s: invalid component end '%s'\n",
2818                                                 progname, argv[0], optarg);
2819                                         goto usage_error;
2820                                 }
2821                         }
2822                         break;
2823                 case 'H':
2824                         if (!migrate_mode) {
2825                                 fprintf(stderr, "--mdt-hash is valid only for migrate command\n");
2826                                 return CMD_HELP;
2827                         }
2828
2829                         lsa.lsa_pattern = check_hashtype(optarg);
2830                         if (lsa.lsa_pattern == 0) {
2831                                 fprintf(stderr,
2832                                         "%s %s: bad stripe hash type '%s'\n",
2833                                         progname, argv[0], optarg);
2834                                 return CMD_HELP;
2835                         }
2836                         break;
2837                 case 'i':
2838                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
2839                         if (*end != '\0') {
2840                                 fprintf(stderr,
2841                                         "%s %s: invalid stripe offset '%s'\n",
2842                                         progname, argv[0], optarg);
2843                                 goto usage_error;
2844                         }
2845                         if (lsa.lsa_stripe_off == -1)
2846                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2847                         break;
2848                 case 'I':
2849                         comp_id = strtoul(optarg, &end, 0);
2850                         if (*end != '\0' || comp_id == 0 ||
2851                             comp_id > LCME_ID_MAX) {
2852                                 fprintf(stderr,
2853                                         "%s %s: invalid component ID '%s'\n",
2854                                         progname, argv[0], optarg);
2855                                 goto usage_error;
2856                         }
2857                         break;
2858                 case 'f':
2859                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
2860                                 fprintf(stderr,
2861                                         "error: %s: invalid option: %s\n",
2862                                         progname, argv[optopt + 1]);
2863                                 goto usage_error;
2864                         }
2865                         if (opc == SO_MIRROR_EXTEND) {
2866                                 if (last_mirror == NULL) {
2867                                         fprintf(stderr,
2868                                 "error: %s: '-N' must exist in front of '%s'\n",
2869                                                 progname, argv[optopt + 1]);
2870                                         goto usage_error;
2871                                 }
2872                                 last_mirror->m_file = optarg;
2873                                 last_mirror->m_count = 1;
2874                         } else {
2875                                 /* mirror split */
2876                                 if (mirror_list == NULL)
2877                                         mirror_list = lfs_mirror_alloc();
2878                                 mirror_list->m_file = optarg;
2879                         }
2880                         has_m_file = true;
2881                         break;
2882                 case 'L':
2883                         if (strcmp(argv[optind - 1], "mdt") == 0) {
2884                                 /* Can be only the first component */
2885                                 if (layout != NULL) {
2886                                         result = -EINVAL;
2887                                         fprintf(stderr, "error: 'mdt' layout "
2888                                                 "can be only the first one\n");
2889                                         goto error;
2890                                 }
2891                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
2892                                         result = -EFBIG;
2893                                         fprintf(stderr, "error: 'mdt' layout "
2894                                                 "size is too big\n");
2895                                         goto error;
2896                                 }
2897                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
2898                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
2899                                 result = -EINVAL;
2900                                 fprintf(stderr, "error: layout '%s' is "
2901                                         "unknown, supported layouts are: "
2902                                         "'mdt', 'raid0'\n", argv[optind]);
2903                                 goto error;
2904                         }
2905                         break;
2906                 case 'm':
2907                         if (!migrate_mode) {
2908                                 fprintf(stderr,
2909                                         "%s %s: -m|--mdt is valid only for migrate command\n",
2910                                         progname, argv[0]);
2911                                 goto usage_error;
2912                         }
2913                         migrate_mdt_mode = true;
2914                         lsa.lsa_nr_tgts = parse_targets(tgts,
2915                                                 sizeof(tgts) / sizeof(__u32),
2916                                                 lsa.lsa_nr_tgts, optarg);
2917                         if (lsa.lsa_nr_tgts < 0) {
2918                                 fprintf(stderr,
2919                                         "%s %s: invalid MDT target(s) '%s'\n",
2920                                         progname, argv[0], optarg);
2921                                 return CMD_HELP;
2922                         }
2923
2924                         lsa.lsa_tgts = tgts;
2925                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
2926                                 lsa.lsa_stripe_off = tgts[0];
2927                         break;
2928                 case 'n':
2929                         if (!migrate_mode) {
2930                                 fprintf(stderr,
2931                                         "%s %s: -n|--non-block valid only for migrate command\n",
2932                                         progname, argv[0]);
2933                                 goto usage_error;
2934                         }
2935                         migration_flags |= MIGRATION_NONBLOCK;
2936                         break;
2937                 case 'N':
2938                         if (opc == SO_SETSTRIPE) {
2939                                 opc = SO_MIRROR_CREATE;
2940                                 mirror_mode = true;
2941                         }
2942                         mirror_count = 1;
2943                         if (optarg != NULL) {
2944                                 mirror_count = strtoul(optarg, &end, 0);
2945                                 if (*end != '\0' || mirror_count == 0) {
2946                                         fprintf(stderr,
2947                                                 "error: %s: bad mirror count: %s\n",
2948                                                 progname, optarg);
2949                                         result = -EINVAL;
2950                                         goto error;
2951                                 }
2952                         }
2953
2954                         new_mirror = lfs_mirror_alloc();
2955                         new_mirror->m_count = mirror_count;
2956
2957                         if (mirror_list == NULL)
2958                                 mirror_list = new_mirror;
2959
2960                         if (last_mirror != NULL) {
2961                                 /* wrap up last mirror */
2962                                 if (lsa.lsa_comp_end == 0)
2963                                         lsa.lsa_comp_end = LUSTRE_EOF;
2964
2965                                 result = comp_args_to_layout(lpp, &lsa, true);
2966                                 if (result) {
2967                                         lfs_mirror_free(new_mirror);
2968                                         goto error;
2969                                 }
2970
2971                                 setstripe_args_init_inherit(&lsa);
2972
2973                                 last_mirror->m_next = new_mirror;
2974                         }
2975
2976                         last_mirror = new_mirror;
2977                         lpp = &last_mirror->m_layout;
2978                         break;
2979                 case 'o':
2980 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2981                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
2982                                 fprintf(stderr, "warning: '--ost-list' is "
2983                                         "deprecated, use '--ost' instead\n");
2984 #endif
2985                         lsa.lsa_nr_tgts = parse_targets(tgts,
2986                                                 sizeof(tgts) / sizeof(__u32),
2987                                                 lsa.lsa_nr_tgts, optarg);
2988                         if (lsa.lsa_nr_tgts < 0) {
2989                                 fprintf(stderr,
2990                                         "%s %s: invalid OST target(s) '%s'\n",
2991                                         progname, argv[0], optarg);
2992                                 goto usage_error;
2993                         }
2994
2995                         lsa.lsa_tgts = tgts;
2996                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
2997                                 lsa.lsa_stripe_off = tgts[0];
2998                         break;
2999                 case 'p':
3000                         if (optarg == NULL)
3001                                 goto usage_error;
3002                         lsa.lsa_pool_name = optarg;
3003
3004                         if (strlen(lsa.lsa_pool_name) == 0 ||
3005                             strncmp(lsa.lsa_pool_name, "none",
3006                                     LOV_MAXPOOLNAME) == 0)
3007                                 lsa.lsa_pool_name = NULL;
3008                         break;
3009                 case 'S':
3010                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3011                                                   &size_units, 0);
3012                         if (result) {
3013                                 fprintf(stderr,
3014                                         "%s %s: invalid stripe size '%s'\n",
3015                                         progname, argv[0], optarg);
3016                                 goto usage_error;
3017                         }
3018                         break;
3019                 case 'v':
3020                         if (!migrate_mode) {
3021                                 fprintf(stderr,
3022                                         "%s %s: -v|--verbose valid only for migrate command\n",
3023                                         progname, argv[0]);
3024                                 goto usage_error;
3025                         }
3026                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3027                         break;
3028                 case 'y':
3029                         from_yaml = true;
3030                         template = optarg;
3031                         break;
3032                 default:
3033                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
3034                                 progname, argv[0], argv[optind - 1]);
3035                         goto usage_error;
3036                 }
3037         }
3038
3039         fname = argv[optind];
3040
3041         if (optind == argc) {
3042                 fprintf(stderr, "%s %s: FILE must be specified\n",
3043                         progname, argv[0]);
3044                 goto usage_error;
3045         }
3046
3047         if (mirror_mode && mirror_count == 0) {
3048                 fprintf(stderr,
3049                         "error: %s: --mirror-count|-N option is required\n",
3050                         progname);
3051                 result = -EINVAL;
3052                 goto error;
3053         }
3054
3055         if (mirror_mode) {
3056                 if (lsa.lsa_comp_end == 0)
3057                         lsa.lsa_comp_end = LUSTRE_EOF;
3058         }
3059
3060         if (lsa.lsa_comp_end != 0) {
3061                 result = comp_args_to_layout(lpp, &lsa, true);
3062                 if (result)
3063                         goto error;
3064         }
3065
3066         if (mirror_flags & MF_NO_VERIFY) {
3067                 if (opc != SO_MIRROR_EXTEND) {
3068                         fprintf(stderr,
3069                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
3070                                 progname);
3071                         result = -EINVAL;
3072                         goto error;
3073                 } else if (!has_m_file) {
3074                         fprintf(stderr,
3075                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
3076                                 progname);
3077                         result = -EINVAL;
3078                         goto error;
3079                 }
3080         }
3081
3082         /* Only LCME_FL_INIT flags is used in PFL, and it shouldn't be
3083          * altered by user space tool, so we don't need to support the
3084          * --component-set for this moment. */
3085         if (comp_set && !comp_id) {
3086                 fprintf(stderr, "%s %s: --component-set doesn't have component-id set\n",
3087                         progname, argv[0]);
3088                 goto usage_error;
3089         }
3090
3091         if ((delete + comp_set + comp_del + comp_add) > 1) {
3092                 fprintf(stderr,
3093                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
3094                         progname, argv[0]);
3095                 goto usage_error;
3096         }
3097
3098         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
3099                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
3100                 fprintf(stderr,
3101                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
3102                         progname, argv[0]);
3103                 goto usage_error;
3104         }
3105
3106         if ((comp_set || comp_del) &&
3107             (setstripe_args_specified(&lsa) || layout != NULL)) {
3108                 fprintf(stderr,
3109                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
3110                         progname, argv[0]);
3111                 goto usage_error;
3112         }
3113
3114         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
3115                 fprintf(stderr,
3116                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
3117                         progname, argv[0]);
3118                 goto usage_error;
3119         }
3120
3121         if (comp_add || comp_del) {
3122                 struct stat st;
3123
3124                 result = lstat(fname, &st);
3125                 if (result == 0 && S_ISDIR(st.st_mode)) {
3126                         fprintf(stderr,
3127                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
3128                                 progname);
3129                         goto usage_error;
3130                 }
3131
3132                 if (mirror_mode) {
3133                         fprintf(stderr, "error: %s: can't use --component-add "
3134                                 "or --component-del for mirror operation\n",
3135                                 progname);
3136                         goto usage_error;
3137                 }
3138         }
3139
3140         if (comp_add) {
3141                 if (layout == NULL) {
3142                         fprintf(stderr,
3143                                 "%s %s: option -E must be specified with --component-add\n",
3144                                 progname, argv[0]);
3145                         goto usage_error;
3146                 }
3147
3148                 result = adjust_first_extent(fname, layout);
3149                 if (result == -ENODATA)
3150                         comp_add = 0;
3151                 else if (result != 0)
3152                         goto error;
3153         }
3154
3155         if (from_yaml && from_copy) {
3156                 fprintf(stderr,
3157                         "%s: can't specify --yaml and --copy together\n",
3158                         progname);
3159                 goto error;
3160         }
3161
3162         if ((from_yaml || from_copy) &&
3163             (setstripe_args_specified(&lsa) || layout != NULL)) {
3164                 fprintf(stderr, "error: %s: can't specify --yaml with "
3165                         "-c, -S, -i, -o, -p or -E options.\n",
3166                         argv[0]);
3167                 goto error;
3168         }
3169
3170         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
3171                 fprintf(stderr,
3172                         "%s %s: options --non-block and --block are mutually exclusive\n",
3173                         progname, argv[0]);
3174                 goto usage_error;
3175         }
3176
3177         if (!comp_del && !comp_set && (opc != SO_MIRROR_SPLIT) &&
3178             comp_id != 0) {
3179                 fprintf(stderr,
3180                 "%s %s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
3181                         progname, argv[0]);
3182                 goto usage_error;
3183         }
3184
3185         if (migrate_mdt_mode) {
3186                 struct lmv_user_md *lmu;
3187
3188                 /* initialize migrate mdt parameters */
3189                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
3190                                                  LMV_USER_MAGIC_SPECIFIC));
3191                 if (!lmu) {
3192                         fprintf(stderr,
3193                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
3194                                 progname, argv[0], strerror(ENOMEM));
3195                         result = -ENOMEM;
3196                         goto error;
3197                 }
3198                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
3199                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
3200                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
3201                         fprintf(stderr,
3202                                 "%s %s: migrate should specify MDT index\n",
3203                                 progname, argv[0]);
3204                         free(lmu);
3205                         goto usage_error;
3206                 }
3207                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
3208                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
3209                         lmu->lum_hash_type = lsa.lsa_pattern;
3210                 else
3211                         lmu->lum_hash_type = LMV_HASH_TYPE_FNV_1A_64;
3212                 if (lsa.lsa_pool_name)
3213                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
3214                                 sizeof(lmu->lum_pool_name));
3215                 if (lsa.lsa_nr_tgts > 1) {
3216                         int i;
3217
3218                         if (lsa.lsa_stripe_count > 0 &&
3219                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3220                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
3221                                 fprintf(stderr,
3222                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
3223                                         progname, lsa.lsa_stripe_count,
3224                                                 lsa.lsa_nr_tgts);
3225                                 free(lmu);
3226                                 goto usage_error;
3227                         }
3228
3229                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
3230                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
3231                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
3232                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
3233                 } else {
3234                         lmu->lum_magic = LMV_USER_MAGIC;
3235                 }
3236
3237                 migrate_mdt_param.fp_lmv_md = lmu;
3238                 migrate_mdt_param.fp_migrate = 1;
3239         } else if (layout == NULL) {
3240                 /* initialize stripe parameters */
3241                 param = calloc(1, offsetof(typeof(*param),
3242                                lsp_osts[lsa.lsa_nr_tgts]));
3243                 if (param == NULL) {
3244                         fprintf(stderr,
3245                                 "%s %s: cannot allocate memory for parameters: %s\n",
3246                                 progname, argv[0], strerror(ENOMEM));
3247                         result = -ENOMEM;
3248                         goto error;
3249                 }
3250
3251                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
3252                         param->lsp_stripe_size = lsa.lsa_stripe_size;
3253                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
3254                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
3255                                 param->lsp_stripe_count = -1;
3256                         else
3257                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
3258                 }
3259                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3260                         param->lsp_stripe_offset = -1;
3261                 else
3262                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
3263                 param->lsp_pool = lsa.lsa_pool_name;
3264                 param->lsp_is_specific = false;
3265                 if (lsa.lsa_nr_tgts > 0) {
3266                         if (lsa.lsa_stripe_count > 0 &&
3267                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3268                             lsa.lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
3269                             lsa.lsa_nr_tgts != lsa.lsa_stripe_count) {
3270                                 fprintf(stderr, "error: %s: stripe count %lld "
3271                                         "doesn't match the number of OSTs: %d\n"
3272                                         , argv[0], lsa.lsa_stripe_count,
3273                                         lsa.lsa_nr_tgts);
3274                                 free(param);
3275                                 goto usage_error;
3276                         }
3277
3278                         param->lsp_is_specific = true;
3279                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
3280                         memcpy(param->lsp_osts, tgts,
3281                                sizeof(*tgts) * lsa.lsa_nr_tgts);
3282                 }
3283         }
3284
3285         if (from_yaml) {
3286                 /* generate a layout from a YAML template */
3287                 result = lfs_comp_create_from_yaml(template, &layout,
3288                                                    &lsa, tgts);
3289                 if (result) {
3290                         fprintf(stderr, "error: %s: can't create composite "
3291                                 "layout from template file %s\n",
3292                                 argv[0], template);
3293                         goto error;
3294                 }
3295         } else if (from_copy) {
3296                 layout = llapi_layout_get_by_path(template, 0);
3297                 if (layout == NULL) {
3298                         fprintf(stderr,
3299                             "%s: can't create composite layout from file %s.\n",
3300                                 progname, template);
3301                         goto error;
3302                 }
3303         }
3304
3305         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
3306                 if (migrate_mdt_mode) {
3307                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
3308                 } else if (migrate_mode) {
3309                         result = lfs_migrate(fname, migration_flags, param,
3310                                              layout);
3311                 } else if (comp_set != 0) {
3312                         result = lfs_component_set(fname, comp_id,
3313                                                    lsa.lsa_comp_flags,
3314                                                    lsa.lsa_comp_neg_flags);
3315                 } else if (comp_del != 0) {
3316                         result = lfs_component_del(fname, comp_id,
3317                                                    lsa.lsa_comp_flags,
3318                                                    lsa.lsa_comp_neg_flags);
3319                 } else if (comp_add != 0) {
3320                         result = lfs_component_add(fname, layout);
3321                 } else if (opc == SO_MIRROR_CREATE) {
3322                         result = mirror_create(fname, mirror_list);
3323                 } else if (opc == SO_MIRROR_EXTEND) {
3324                         result = mirror_extend(fname, mirror_list,
3325                                                mirror_flags);
3326                 } else if (opc == SO_MIRROR_SPLIT) {
3327                         if (mirror_id == 0 && comp_id == 0) {
3328                                 fprintf(stderr,
3329                         "%s %s: no mirror id or component id is specified\n",
3330                                         progname, argv[0]);
3331                                 goto usage_error;
3332                         }
3333                         if (mirror_id != 0)
3334                                 comp_id = mirror_id;
3335                         else
3336                                 mirror_flags |= MF_COMP_ID;
3337                         result = mirror_split(fname, comp_id, mirror_flags,
3338                                               has_m_file ? mirror_list->m_file :
3339                                               NULL);
3340                 } else if (layout != NULL) {
3341                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
3342                                                       0666, layout);
3343                         if (result >= 0) {
3344                                 close(result);
3345                                 result = 0;
3346                         }
3347                 } else {
3348                         result = llapi_file_open_param(fname,
3349                                                        O_CREAT | O_WRONLY,
3350                                                        0666, param);
3351                         if (result >= 0) {
3352                                 close(result);
3353                                 result = 0;
3354                         }
3355                 }
3356                 if (result) {
3357                         /* Save the first error encountered. */
3358                         if (result2 == 0)
3359                                 result2 = result;
3360                         continue;
3361                 }
3362         }
3363
3364         free(param);
3365         free(migrate_mdt_param.fp_lmv_md);
3366         llapi_layout_free(layout);
3367         lfs_mirror_list_free(mirror_list);
3368         return result2;
3369 usage_error:
3370         result = CMD_HELP;
3371 error:
3372         llapi_layout_free(layout);
3373         lfs_mirror_list_free(mirror_list);
3374         return result;
3375 }
3376
3377 static int lfs_poollist(int argc, char **argv)
3378 {
3379         if (argc != 2)
3380                 return CMD_HELP;
3381
3382         return llapi_poollist(argv[1]);
3383 }
3384
3385 static int set_time(time_t *time, time_t *set, char *str)
3386 {
3387         time_t t;
3388         int res = 0;
3389         char *endptr;
3390
3391         if (str[0] == '+')
3392                 res = 1;
3393         else if (str[0] == '-')
3394                 res = -1;
3395
3396         if (res)
3397                 str++;
3398
3399         t = strtol(str, &endptr, 0);
3400         if (*endptr != '\0') {
3401                 fprintf(stderr,
3402                         "%s find: bad time '%s': %s\n",
3403                         progname, str, strerror(EINVAL));
3404                 return INT_MAX;
3405         }
3406         if (*time < t * 24 * 60 * 60) {
3407                 if (res != 0)
3408                         str--;
3409                 fprintf(stderr,
3410                         "%s find: bad time '%s': too large\n",
3411                         progname, str);
3412                 return INT_MAX;
3413         }
3414
3415         *set = *time - t * 24 * 60 * 60;
3416         return res;
3417 }
3418
3419 static int name2uid(unsigned int *id, const char *name)
3420 {
3421         struct passwd *passwd;
3422
3423         passwd = getpwnam(name);
3424         if (passwd == NULL)
3425                 return -ENOENT;
3426         *id = passwd->pw_uid;
3427
3428         return 0;
3429 }
3430
3431 static int name2gid(unsigned int *id, const char *name)
3432 {
3433         struct group *group;
3434
3435         group = getgrnam(name);
3436         if (group == NULL)
3437                 return -ENOENT;
3438         *id = group->gr_gid;
3439
3440         return 0;
3441 }
3442
3443 static inline int name2projid(unsigned int *id, const char *name)
3444 {
3445         return -ENOTSUP;
3446 }
3447
3448 static int uid2name(char **name, unsigned int id)
3449 {
3450         struct passwd *passwd;
3451
3452         passwd = getpwuid(id);
3453         if (passwd == NULL)
3454                 return -ENOENT;
3455         *name = passwd->pw_name;
3456
3457         return 0;
3458 }
3459
3460 static inline int gid2name(char **name, unsigned int id)
3461 {
3462         struct group *group;
3463
3464         group = getgrgid(id);
3465         if (group == NULL)
3466                 return -ENOENT;
3467         *name = group->gr_name;
3468
3469         return 0;
3470 }
3471
3472 static int name2layout(__u32 *layout, char *name)
3473 {
3474         char *ptr, *layout_name;
3475
3476         *layout = 0;
3477         for (ptr = name; ; ptr = NULL) {
3478                 layout_name = strtok(ptr, ",");
3479                 if (layout_name == NULL)
3480                         break;
3481                 if (strcmp(layout_name, "released") == 0)
3482                         *layout |= LOV_PATTERN_F_RELEASED;
3483                 else if (strcmp(layout_name, "raid0") == 0)
3484                         *layout |= LOV_PATTERN_RAID0;
3485                 else if (strcmp(layout_name, "mdt") == 0)
3486                         *layout |= LOV_PATTERN_MDT;
3487                 else
3488                         return -1;
3489         }
3490         return 0;
3491 }
3492
3493 static int lfs_find(int argc, char **argv)
3494 {
3495         int c, rc;
3496         int ret = 0;
3497         time_t t;
3498         struct find_param param = {
3499                 .fp_max_depth = -1,
3500                 .fp_quiet = 1,
3501         };
3502         struct option long_opts[] = {
3503         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
3504         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
3505         { .val = LFS_COMP_COUNT_OPT,
3506                         .name = "comp-count",   .has_arg = required_argument },
3507         { .val = LFS_COMP_COUNT_OPT,
3508                         .name = "component-count",
3509                                                 .has_arg = required_argument },
3510         { .val = LFS_COMP_FLAGS_OPT,
3511                         .name = "comp-flags",   .has_arg = required_argument },
3512         { .val = LFS_COMP_FLAGS_OPT,
3513                         .name = "component-flags",
3514                                                 .has_arg = required_argument },
3515         { .val = LFS_COMP_START_OPT,
3516                         .name = "comp-start",   .has_arg = required_argument },
3517         { .val = LFS_COMP_START_OPT,
3518                         .name = "component-start",
3519                                                 .has_arg = required_argument },
3520         { .val = LFS_MIRROR_STATE_OPT,
3521                         .name = "mirror-state", .has_arg = required_argument },
3522         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
3523         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
3524         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
3525 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
3526         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
3527         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
3528         { .val = 'E',   .name = "component-end",
3529                                                 .has_arg = required_argument },
3530 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3531         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
3532         { .val = 'G',   .name = "group",        .has_arg = required_argument },
3533         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
3534         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
3535         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
3536 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
3537         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3538         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
3539         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
3540         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
3541         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
3542         { .val = 'n',   .name = "name",         .has_arg = required_argument },
3543         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
3544 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
3545         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
3546         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
3547         /* no short option for pool yet, can be 'p' after 2.18 */
3548         { .val = LFS_POOL_OPT,
3549                         .name = "pool",         .has_arg = required_argument },
3550         { .val = '0',   .name = "print0",       .has_arg = no_argument },
3551         { .val = 'P',   .name = "print",        .has_arg = no_argument },
3552         { .val = LFS_PROJID_OPT,
3553                         .name = "projid",       .has_arg = required_argument },
3554 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3555 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3556 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3557         { .val = 's',   .name = "size",         .has_arg = required_argument },
3558         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3559         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3560         { .val = 't',   .name = "type",         .has_arg = required_argument },
3561         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
3562         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
3563         { .val = 'U',   .name = "user",         .has_arg = required_argument },
3564 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
3565 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
3566         { .name = NULL } };
3567         int pathstart = -1;
3568         int pathend = -1;
3569         int neg_opt = 0;
3570         time_t *xtime;
3571         int *xsign;
3572         int isoption;
3573         char *endptr;
3574
3575         time(&t);
3576
3577         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
3578         while ((c = getopt_long_only(argc, argv,
3579                         "-0A:b:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:v",
3580                         long_opts, NULL)) >= 0) {
3581                 xtime = NULL;
3582                 xsign = NULL;
3583                 if (neg_opt)
3584                         --neg_opt;
3585                 /* '!' is part of option */
3586                 /* when getopt_long_only() finds a string which is not
3587                  * an option nor a known option argument it returns 1
3588                  * in that case if we already have found pathstart and pathend
3589                  * (i.e. we have the list of pathnames),
3590                  * the only supported value is "!"
3591                  */
3592                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
3593                 if (!isoption && pathend != -1) {
3594                         fprintf(stderr, "err: %s: filename|dirname must either "
3595                                         "precede options or follow options\n",
3596                                         argv[0]);
3597                         ret = CMD_HELP;
3598                         goto err;
3599                 }
3600                 if (!isoption && pathstart == -1)
3601                         pathstart = optind - 1;
3602                 if (isoption && pathstart != -1 && pathend == -1)
3603                         pathend = optind - 2;
3604                 switch (c) {
3605                 case 0:
3606                         /* Long options. */
3607                         break;
3608                 case 1:
3609                         /* unknown; opt is "!" or path component,
3610                          * checking done above.
3611                          */
3612                         if (strcmp(optarg, "!") == 0)
3613                                 neg_opt = 2;
3614                         break;
3615                 case 'A':
3616                         xtime = &param.fp_atime;
3617                         xsign = &param.fp_asign;
3618                         param.fp_exclude_atime = !!neg_opt;
3619                         /* no break, this falls through to 'C' for ctime */
3620                 case 'C':
3621                         if (c == 'C') {
3622                                 xtime = &param.fp_ctime;
3623                                 xsign = &param.fp_csign;
3624                                 param.fp_exclude_ctime = !!neg_opt;
3625                         }
3626                         /* no break, this falls through to 'M' for mtime */
3627                 case 'M':
3628                         if (c == 'M') {
3629                                 xtime = &param.fp_mtime;
3630                                 xsign = &param.fp_msign;
3631                                 param.fp_exclude_mtime = !!neg_opt;
3632                         }
3633                         rc = set_time(&t, xtime, optarg);
3634                         if (rc == INT_MAX) {
3635                                 ret = -1;
3636                                 goto err;
3637                         }
3638                         if (rc)
3639                                 *xsign = rc;
3640                         break;
3641                 case 'b':
3642                         if (optarg[0] == '+') {
3643                                 param.fp_blocks_sign = -1;
3644                                 optarg++;
3645                         } else if (optarg[0] == '-') {
3646                                 param.fp_blocks_sign =  1;
3647                                 optarg++;
3648                         }
3649
3650                         param.fp_blocks_units = 1024;
3651                         ret = llapi_parse_size(optarg, &param.fp_blocks,
3652                                                &param.fp_blocks_units, 0);
3653                         if (ret) {
3654                                 fprintf(stderr, "error: bad blocks '%s'\n",
3655                                         optarg);
3656                                 goto err;
3657                         }
3658                         param.fp_check_blocks = 1;
3659                         param.fp_exclude_blocks = !!neg_opt;
3660                         break;
3661                 case LFS_COMP_COUNT_OPT:
3662                         if (optarg[0] == '+') {
3663                                 param.fp_comp_count_sign = -1;
3664                                 optarg++;
3665                         } else if (optarg[0] == '-') {
3666                                 param.fp_comp_count_sign =  1;
3667                                 optarg++;
3668                         }
3669
3670                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
3671                         if (*endptr != '\0') {
3672                                 fprintf(stderr, "error: bad component count "
3673                                         "'%s'\n", optarg);
3674                                 goto err;
3675                         }
3676                         param.fp_check_comp_count = 1;
3677                         param.fp_exclude_comp_count = !!neg_opt;
3678                         break;
3679                 case LFS_COMP_FLAGS_OPT:
3680                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
3681                                             &param.fp_comp_neg_flags);
3682                         if (rc) {
3683                                 fprintf(stderr, "error: bad component flags "
3684                                         "'%s'\n", optarg);
3685                                 goto err;
3686                         }
3687                         param.fp_check_comp_flags = 1;
3688                         if (neg_opt) {
3689                                 __u32 flags = param.fp_comp_neg_flags;
3690                                 param.fp_comp_neg_flags = param.fp_comp_flags;
3691                                 param.fp_comp_flags = flags;
3692                         }
3693                         break;
3694                 case LFS_COMP_START_OPT:
3695                         if (optarg[0] == '+') {
3696                                 param.fp_comp_start_sign = -1;
3697                                 optarg++;
3698                         } else if (optarg[0] == '-') {
3699                                 param.fp_comp_start_sign =  1;
3700                                 optarg++;
3701                         }
3702
3703                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
3704                                               &param.fp_comp_start_units, 0);
3705                         if (rc) {
3706                                 fprintf(stderr, "error: bad component start "
3707                                         "'%s'\n", optarg);
3708                                 goto err;
3709                         }
3710                         param.fp_check_comp_start = 1;
3711                         param.fp_exclude_comp_start = !!neg_opt;
3712                         break;
3713                 case LFS_MIRROR_STATE_OPT:
3714                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
3715                                               &param.fp_mirror_neg_state);
3716                         if (rc) {
3717                                 fprintf(stderr,
3718                                         "error: bad mirrored file state '%s'\n",
3719                                         optarg);
3720                                 goto err;
3721                         }
3722                         param.fp_check_mirror_state = 1;
3723                         if (neg_opt) {
3724                                 __u16 state = param.fp_mirror_neg_state;
3725                                 param.fp_mirror_neg_state =
3726                                         param.fp_mirror_state;
3727                                 param.fp_mirror_state = state;
3728                         }
3729                         break;
3730                 case 'c':
3731                         if (optarg[0] == '+') {
3732                                 param.fp_stripe_count_sign = -1;
3733                                 optarg++;
3734                         } else if (optarg[0] == '-') {
3735                                 param.fp_stripe_count_sign =  1;
3736                                 optarg++;
3737                         }
3738
3739                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
3740                         if (*endptr != '\0') {
3741                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
3742                                         optarg);
3743                                 ret = -1;
3744                                 goto err;
3745                         }
3746                         param.fp_check_stripe_count = 1;
3747                         param.fp_exclude_stripe_count = !!neg_opt;
3748                         break;
3749                 case 'D':
3750                         param.fp_max_depth = strtol(optarg, 0, 0);
3751                         break;
3752                 case 'E':
3753                         if (optarg[0] == '+') {
3754                                 param.fp_comp_end_sign = -1;
3755                                 optarg++;
3756                         } else if (optarg[0] == '-') {
3757                                 param.fp_comp_end_sign =  1;
3758                                 optarg++;
3759                         }
3760
3761                         if (arg_is_eof(optarg)) {
3762                                 param.fp_comp_end = LUSTRE_EOF;
3763                                 param.fp_comp_end_units = 1;
3764                                 rc = 0;
3765                         } else {
3766                                 rc = llapi_parse_size(optarg,
3767                                                 &param.fp_comp_end,
3768                                                 &param.fp_comp_end_units, 0);
3769                         }
3770                         if (rc) {
3771                                 fprintf(stderr, "error: bad component end "
3772                                         "'%s'\n", optarg);
3773                                 goto err;
3774                         }
3775                         param.fp_check_comp_end = 1;
3776                         param.fp_exclude_comp_end = !!neg_opt;
3777                         break;
3778                 case 'g':
3779                 case 'G':
3780                         rc = name2gid(&param.fp_gid, optarg);
3781                         if (rc) {
3782                                 param.fp_gid = strtoul(optarg, &endptr, 10);
3783                                 if (*endptr != '\0') {
3784                                         fprintf(stderr, "Group/GID: %s cannot "
3785                                                 "be found.\n", optarg);
3786                                         ret = -1;
3787                                         goto err;
3788                                 }
3789                         }
3790                         param.fp_exclude_gid = !!neg_opt;
3791                         param.fp_check_gid = 1;
3792                         break;
3793                 case 'H':
3794                         param.fp_hash_type = check_hashtype(optarg);
3795                         if (param.fp_hash_type == 0) {
3796                                 fprintf(stderr, "error: bad hash_type '%s'\n",
3797                                         optarg);
3798                                 ret = -1;
3799                                 goto err;
3800                         }
3801                         param.fp_check_hash_type = 1;
3802                         param.fp_exclude_hash_type = !!neg_opt;
3803                         break;
3804                 case 'L':
3805                         ret = name2layout(&param.fp_layout, optarg);
3806                         if (ret)
3807                                 goto err;
3808                         param.fp_exclude_layout = !!neg_opt;
3809                         param.fp_check_layout = 1;
3810                         break;
3811                 case 'u':
3812                 case 'U':
3813                         rc = name2uid(&param.fp_uid, optarg);
3814                         if (rc) {
3815                                 param.fp_uid = strtoul(optarg, &endptr, 10);
3816                                 if (*endptr != '\0') {
3817                                         fprintf(stderr, "User/UID: %s cannot "
3818                                                 "be found.\n", optarg);
3819                                         ret = -1;
3820                                         goto err;
3821                                 }
3822                         }
3823                         param.fp_exclude_uid = !!neg_opt;
3824                         param.fp_check_uid = 1;
3825                         break;
3826                 case 'n':
3827                         param.fp_pattern = (char *)optarg;
3828                         param.fp_exclude_pattern = !!neg_opt;
3829                         break;
3830                 case 'N':
3831                         if (optarg[0] == '+') {
3832                                 param.fp_mirror_count_sign = -1;
3833                                 optarg++;
3834                         } else if (optarg[0] == '-') {
3835                                 param.fp_mirror_count_sign =  1;
3836                                 optarg++;
3837                         }
3838
3839                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
3840                         if (*endptr != '\0') {
3841                                 fprintf(stderr,
3842                                         "error: bad mirror count '%s'\n",
3843                                         optarg);
3844                                 goto err;
3845                         }
3846                         param.fp_check_mirror_count = 1;
3847                         param.fp_exclude_mirror_count = !!neg_opt;
3848                         break;
3849                 case 'm':
3850                 case 'i':
3851                 case 'O': {
3852                         char *buf, *token, *next, *p;
3853                         int len = 1;
3854                         void *tmp;
3855
3856                         buf = strdup(optarg);
3857                         if (buf == NULL) {
3858                                 ret = -ENOMEM;
3859                                 goto err;
3860                         }
3861
3862                         param.fp_exclude_obd = !!neg_opt;
3863
3864                         token = buf;
3865                         while (token && *token) {
3866                                 token = strchr(token, ',');
3867                                 if (token) {
3868                                         len++;
3869                                         token++;
3870                                 }
3871                         }
3872                         if (c == 'm') {
3873                                 param.fp_exclude_mdt = !!neg_opt;
3874                                 param.fp_num_alloc_mdts += len;
3875                                 tmp = realloc(param.fp_mdt_uuid,
3876                                               param.fp_num_alloc_mdts *
3877                                               sizeof(*param.fp_mdt_uuid));
3878                                 if (tmp == NULL) {
3879                                         ret = -ENOMEM;
3880                                         goto err_free;
3881                                 }
3882
3883                                 param.fp_mdt_uuid = tmp;
3884                         } else {
3885                                 param.fp_exclude_obd = !!neg_opt;
3886                                 param.fp_num_alloc_obds += len;
3887                                 tmp = realloc(param.fp_obd_uuid,
3888                                               param.fp_num_alloc_obds *
3889                                               sizeof(*param.fp_obd_uuid));
3890                                 if (tmp == NULL) {
3891                                         ret = -ENOMEM;
3892                                         goto err_free;
3893                                 }
3894
3895                                 param.fp_obd_uuid = tmp;
3896                         }
3897                         for (token = buf; token && *token; token = next) {
3898                                 struct obd_uuid *puuid;
3899                                 if (c == 'm') {
3900                                         puuid =
3901                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
3902                                 } else {
3903                                         puuid =
3904                                         &param.fp_obd_uuid[param.fp_num_obds++];
3905                                 }
3906                                 p = strchr(token, ',');
3907                                 next = 0;
3908                                 if (p) {
3909                                         *p = 0;
3910                                         next = p+1;
3911                                 }
3912
3913                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
3914                                         ret = -E2BIG;
3915                                         goto err_free;
3916                                 }
3917
3918                                 strncpy(puuid->uuid, token,
3919                                         sizeof(puuid->uuid));
3920                         }
3921 err_free:
3922                         if (buf)
3923                                 free(buf);
3924                         break;
3925                 }
3926 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
3927                 case 'p':
3928 #endif
3929                 case LFS_POOL_OPT:
3930                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
3931                                 fprintf(stderr,
3932                                         "Pool name %s is too long (max %d)\n",
3933                                         optarg, LOV_MAXPOOLNAME);
3934                                 ret = -1;
3935                                 goto err;
3936                         }
3937                         /*
3938                          * We do check for empty pool because empty pool
3939                          * is used to find V1 LOV attributes
3940                          */
3941                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
3942                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
3943                         param.fp_exclude_pool = !!neg_opt;
3944                         param.fp_check_pool = 1;
3945                         break;
3946 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
3947                 case 'p': /* want this for --pool, to match getstripe/find */
3948                         fprintf(stderr,
3949                                 "warning: -p deprecated, use --print0 or -0\n");
3950 #endif
3951                 case '0':
3952                         param.fp_zero_end = 1;
3953                         break;
3954                 case 'P': /* we always print, this option is a no-op */
3955                         break;
3956                 case LFS_PROJID_OPT:
3957                         rc = name2projid(&param.fp_projid, optarg);
3958                         if (rc) {
3959                                 param.fp_projid = strtoul(optarg, &endptr, 10);
3960                                 if (*endptr != '\0') {
3961                                         fprintf(stderr,
3962                                                 "Invalid project ID: %s",
3963                                                 optarg);
3964                                         ret = -1;
3965                                         goto err;
3966                                 }
3967                         }
3968                         param.fp_exclude_projid = !!neg_opt;
3969                         param.fp_check_projid = 1;
3970                         break;
3971                 case 's':
3972                         if (optarg[0] == '+') {
3973                                 param.fp_size_sign = -1;
3974                                 optarg++;
3975                         } else if (optarg[0] == '-') {
3976                                 param.fp_size_sign =  1;
3977                                 optarg++;
3978                         }
3979
3980                         ret = llapi_parse_size(optarg, &param.fp_size,
3981                                                &param.fp_size_units, 0);
3982                         if (ret) {
3983                                 fprintf(stderr, "error: bad file size '%s'\n",
3984                                         optarg);
3985                                 goto err;
3986                         }
3987                         param.fp_check_size = 1;
3988                         param.fp_exclude_size = !!neg_opt;
3989                         break;
3990                 case 'S':
3991                         if (optarg[0] == '+') {
3992                                 param.fp_stripe_size_sign = -1;
3993                                 optarg++;
3994                         } else if (optarg[0] == '-') {
3995                                 param.fp_stripe_size_sign =  1;
3996                                 optarg++;
3997                         }
3998
3999                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
4000                                                &param.fp_stripe_size_units, 0);
4001                         if (ret) {
4002                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
4003                                         optarg);
4004                                 goto err;
4005                         }
4006                         param.fp_check_stripe_size = 1;
4007                         param.fp_exclude_stripe_size = !!neg_opt;
4008                         break;
4009                 case 't':
4010                         param.fp_exclude_type = !!neg_opt;
4011                         switch (optarg[0]) {
4012                         case 'b':
4013                                 param.fp_type = S_IFBLK;
4014                                 break;
4015                         case 'c':
4016                                 param.fp_type = S_IFCHR;
4017                                 break;
4018                         case 'd':
4019                                 param.fp_type = S_IFDIR;
4020                                 break;
4021                         case 'f':
4022                                 param.fp_type = S_IFREG;
4023                                 break;
4024                         case 'l':
4025                                 param.fp_type = S_IFLNK;
4026                                 break;
4027                         case 'p':
4028                                 param.fp_type = S_IFIFO;
4029                                 break;
4030                         case 's':
4031                                 param.fp_type = S_IFSOCK;
4032                                 break;
4033                         default:
4034                                 fprintf(stderr, "error: %s: bad type '%s'\n",
4035                                         argv[0], optarg);
4036                                 ret = CMD_HELP;
4037                                 goto err;
4038                         };
4039                         break;
4040                 case 'T':
4041                         if (optarg[0] == '+') {
4042                                 param.fp_mdt_count_sign = -1;
4043                                 optarg++;
4044                         } else if (optarg[0] == '-') {
4045                                 param.fp_mdt_count_sign =  1;
4046                                 optarg++;
4047                         }
4048
4049                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
4050                         if (*endptr != '\0') {
4051                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
4052                                         optarg);
4053                                 ret = -1;
4054                                 goto err;
4055                         }
4056                         param.fp_check_mdt_count = 1;
4057                         param.fp_exclude_mdt_count = !!neg_opt;
4058                         break;
4059                 default:
4060                         ret = CMD_HELP;
4061                         goto err;
4062                 };
4063         }
4064
4065         if (pathstart == -1) {
4066                 fprintf(stderr, "error: %s: no filename|pathname\n",
4067                         argv[0]);
4068                 ret = CMD_HELP;
4069                 goto err;
4070         } else if (pathend == -1) {
4071                 /* no options */
4072                 pathend = argc;
4073         }
4074
4075         do {
4076                 rc = llapi_find(argv[pathstart], &param);
4077                 if (rc != 0 && ret == 0)
4078                         ret = rc;
4079         } while (++pathstart < pathend);
4080
4081         if (ret)
4082                 fprintf(stderr, "error: %s failed for %s.\n",
4083                         argv[0], argv[optind - 1]);
4084 err:
4085         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
4086                 free(param.fp_obd_uuid);
4087
4088         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
4089                 free(param.fp_mdt_uuid);
4090
4091         return ret;
4092 }
4093
4094 static int lfs_getstripe_internal(int argc, char **argv,
4095                                   struct find_param *param)
4096 {
4097         struct option long_opts[] = {
4098 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
4099 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
4100         { .val = LFS_COMP_COUNT_OPT,
4101                         .name = "comp-count",   .has_arg = no_argument },
4102         { .val = LFS_COMP_COUNT_OPT,
4103                 .name = "component-count",      .has_arg = no_argument },
4104         { .val = LFS_COMP_FLAGS_OPT,
4105                         .name = "comp-flags",   .has_arg = optional_argument },
4106         { .val = LFS_COMP_FLAGS_OPT,
4107                 .name = "component-flags",      .has_arg = optional_argument },
4108         { .val = LFS_COMP_START_OPT,
4109                         .name = "comp-start",   .has_arg = optional_argument },
4110         { .val = LFS_COMP_START_OPT,
4111                 .name = "component-start",      .has_arg = optional_argument },
4112         { .val = LFS_MIRROR_INDEX_OPT,
4113                 .name = "mirror-index",         .has_arg = required_argument },
4114         { .val = LFS_MIRROR_ID_OPT,
4115                 .name = "mirror-id",            .has_arg = required_argument },
4116         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
4117         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
4118 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
4119         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
4120         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4121         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
4122         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
4123         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
4124         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
4125 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
4126 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
4127         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
4128         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
4129         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
4130         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
4131         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
4132         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
4133         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4134         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
4135 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
4136 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
4137         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
4138         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4139         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4140         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
4141 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
4142         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
4143         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4144         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
4145         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
4146         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
4147 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
4148 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
4149 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
4150 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
4151         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
4152         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4153         { .name = NULL } };
4154         int c, rc;
4155         int neg_opt = 0;
4156         int pathstart = -1, pathend = -1;
4157         int isoption;
4158         char *end, *tmp;
4159
4160         while ((c = getopt_long(argc, argv,
4161                         "-cdDE::FghiI::LmMNoO:pqrRsSvy",
4162                         long_opts, NULL)) != -1) {
4163                 if (neg_opt)
4164                         --neg_opt;
4165
4166                 /* '!' is part of option */
4167                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4168                 if (!isoption && pathend != -1) {
4169                         fprintf(stderr,
4170                                 "error: %s: filename|dirname must either precede options or follow options\n",
4171                                 argv[0]);
4172                         return CMD_HELP;
4173                 }
4174                 if (!isoption && pathstart == -1)
4175                         pathstart = optind - 1;
4176                 if (isoption && pathstart != -1 && pathend == -1)
4177                         pathend = optind - 2;
4178
4179                 switch (c) {
4180                 case 1:
4181                         /* unknown: opt is "!" */
4182                         if (strcmp(optarg, "!") == 0)
4183                                 neg_opt = 2;
4184                         break;
4185                 case 'c':
4186                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4187                                 param->fp_verbose |= VERBOSE_COUNT;
4188                                 param->fp_max_depth = 0;
4189                         }
4190                         break;
4191                 case LFS_COMP_COUNT_OPT:
4192                         param->fp_verbose |= VERBOSE_COMP_COUNT;
4193                         param->fp_max_depth = 0;
4194                         break;
4195                 case LFS_COMP_FLAGS_OPT:
4196                         if (optarg != NULL) {
4197                                 rc = comp_str2flags(optarg,
4198                                                     &param->fp_comp_flags,
4199                                                     &param->fp_comp_neg_flags);
4200                                 if (rc != 0) {
4201                                         fprintf(stderr, "error: %s bad "
4202                                                 "component flags '%s'.\n",
4203                                                 argv[0], optarg);
4204                                         return CMD_HELP;
4205                                 }
4206                                 param->fp_check_comp_flags = 1;
4207                         } else {
4208                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
4209                                 param->fp_max_depth = 0;
4210                         }
4211                         break;
4212                 case LFS_COMP_START_OPT:
4213                         if (optarg != NULL) {
4214                                 tmp = optarg;
4215                                 if (tmp[0] == '+') {
4216                                         param->fp_comp_start_sign = -1;
4217                                         tmp++;
4218                                 } else if (tmp[0] == '-') {
4219                                         param->fp_comp_start_sign = 1;
4220                                         tmp++;
4221                                 }
4222                                 rc = llapi_parse_size(tmp,
4223                                                 &param->fp_comp_start,
4224                                                 &param->fp_comp_start_units, 0);
4225                                 if (rc != 0) {
4226                                         fprintf(stderr, "error: %s bad "
4227                                                 "component start '%s'.\n",
4228                                                 argv[0], tmp);
4229                                         return CMD_HELP;
4230                                 } else {
4231                                         param->fp_check_comp_start = 1;
4232                                 }
4233                         } else {
4234                                 param->fp_verbose |= VERBOSE_COMP_START;
4235                                 param->fp_max_depth = 0;
4236                         }
4237                         break;
4238                 case LFS_MIRROR_INDEX_OPT:
4239                         if (optarg[0] == '+') {
4240                                 param->fp_mirror_index_sign = -1;
4241                                 optarg++;
4242                         } else if (optarg[0] == '-') {
4243                                 param->fp_mirror_index_sign = 1;
4244                                 optarg++;
4245                         }
4246
4247                         param->fp_mirror_index = strtoul(optarg, &end, 0);
4248                         if (*end != '\0' || (param->fp_mirror_index == 0 &&
4249                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
4250                                 fprintf(stderr,
4251                                         "%s %s: invalid mirror index '%s'\n",
4252                                         progname, argv[0], optarg);
4253                                 return CMD_HELP;
4254                         }
4255                         if (param->fp_mirror_id != 0) {
4256                                 fprintf(stderr,
4257                                         "%s %s: can't specify both mirror index and mirror ID\n",
4258                                         progname, argv[0]);
4259                                 return CMD_HELP;
4260                         }
4261                         param->fp_check_mirror_index = 1;
4262                         param->fp_exclude_mirror_index = !!neg_opt;
4263                         break;
4264                 case LFS_MIRROR_ID_OPT:
4265                         if (optarg[0] == '+') {
4266                                 param->fp_mirror_id_sign = -1;
4267                                 optarg++;
4268                         } else if (optarg[0] == '-') {
4269                                 param->fp_mirror_id_sign = 1;
4270                                 optarg++;
4271                         }
4272
4273                         param->fp_mirror_id = strtoul(optarg, &end, 0);
4274                         if (*end != '\0' || (param->fp_mirror_id == 0 &&
4275                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
4276                                 fprintf(stderr,
4277                                         "%s %s: invalid mirror ID '%s'\n",
4278                                         progname, argv[0], optarg);
4279                                 return CMD_HELP;
4280                         }
4281                         if (param->fp_mirror_index != 0) {
4282                                 fprintf(stderr,
4283                                         "%s %s: can't specify both mirror index and mirror ID\n",
4284                                         progname, argv[0]);
4285                                 return CMD_HELP;
4286                         }
4287                         param->fp_check_mirror_id = 1;
4288                         param->fp_exclude_mirror_id = !!neg_opt;
4289                         break;
4290                 case 'd':
4291                         param->fp_max_depth = 0;
4292                         break;
4293                 case 'D':
4294                         param->fp_get_default_lmv = 1;
4295                         break;
4296                 case 'E':
4297                         if (optarg != NULL) {
4298                                 tmp = optarg;
4299                                 if (tmp[0] == '+') {
4300                                         param->fp_comp_end_sign = -1;
4301                                         tmp++;
4302                                 } else if (tmp[0] == '-') {
4303                                         param->fp_comp_end_sign = 1;
4304                                         tmp++;
4305                                 }
4306
4307                                 if (arg_is_eof(tmp)) {
4308                                         param->fp_comp_end = LUSTRE_EOF;
4309                                         param->fp_comp_end_units = 1;
4310                                         rc = 0;
4311                                 } else {
4312                                         rc = llapi_parse_size(tmp,
4313                                                 &param->fp_comp_end,
4314                                                 &param->fp_comp_end_units, 0);
4315                                 }
4316                                 if (rc != 0) {
4317                                         fprintf(stderr, "error: %s bad "
4318                                                 "component end '%s'.\n",
4319                                                 argv[0], tmp);
4320                                         return CMD_HELP;
4321                                 }
4322                                 param->fp_check_comp_end = 1;
4323                         } else {
4324                                 param->fp_verbose |= VERBOSE_COMP_END;
4325                                 param->fp_max_depth = 0;
4326                         }
4327                         break;
4328                 case 'F':
4329                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4330                                 param->fp_verbose |= VERBOSE_DFID;
4331                                 param->fp_max_depth = 0;
4332                         }
4333                         break;
4334                 case 'g':
4335                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4336                                 param->fp_verbose |= VERBOSE_GENERATION;
4337                                 param->fp_max_depth = 0;
4338                         }
4339                         break;
4340                 case 'i':
4341                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4342                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
4343                                 param->fp_max_depth = 0;
4344                         }
4345                         break;
4346                 case 'I':
4347                         if (optarg != NULL) {
4348                                 param->fp_comp_id = strtoul(optarg, &end, 0);
4349                                 if (*end != '\0' || param->fp_comp_id == 0 ||
4350                                     param->fp_comp_id > LCME_ID_MAX) {
4351                                         fprintf(stderr, "error: %s bad "
4352                                                 "component id '%s'\n",
4353                                                 argv[0], optarg);
4354                                         return CMD_HELP;
4355                                 } else {
4356                                         param->fp_check_comp_id = 1;
4357                                 }
4358                         } else {
4359                                 param->fp_max_depth = 0;
4360                                 param->fp_verbose |= VERBOSE_COMP_ID;
4361                         }
4362                         break;
4363                 case 'L':
4364                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4365                                 param->fp_verbose |= VERBOSE_PATTERN;
4366                                 param->fp_max_depth = 0;
4367                         }
4368                         break;
4369 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4370                 case 'M':
4371                         fprintf(stderr, "warning: '-M' deprecated"
4372                                 ", use '--mdt-index' or '-m' instead\n");
4373 #endif
4374                 case 'm':
4375                         if (!(param->fp_verbose & VERBOSE_DETAIL))
4376                                 param->fp_max_depth = 0;
4377                         param->fp_verbose |= VERBOSE_MDTINDEX;
4378                         break;
4379                 case 'N':
4380                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4381                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
4382                                 param->fp_max_depth = 0;
4383                         }
4384                         break;
4385                 case 'O':
4386                         if (param->fp_obd_uuid) {
4387                                 fprintf(stderr,
4388                                         "error: %s: only one obduuid allowed",
4389                                         argv[0]);
4390                                 return CMD_HELP;
4391                         }
4392                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
4393                         break;
4394                 case 'p':
4395                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4396                                 param->fp_verbose |= VERBOSE_POOL;
4397                                 param->fp_max_depth = 0;
4398                         }
4399                         break;
4400                 case 'q':
4401                         param->fp_quiet++;
4402                         break;
4403                 case 'r':
4404                         param->fp_recursive = 1;
4405                         break;
4406                 case 'R':
4407                         param->fp_raw = 1;
4408                         break;
4409                 case 'S':
4410                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4411                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
4412                                 param->fp_max_depth = 0;
4413                         }
4414                         break;
4415                 case 'v':
4416                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
4417                         break;
4418                 case 'y':
4419                         param->fp_yaml = 1;
4420                         break;
4421                 default:
4422                         return CMD_HELP;
4423                 }
4424         }
4425
4426         if (pathstart == -1) {
4427                 fprintf(stderr, "error: %s: no filename|pathname\n",
4428                                 argv[0]);
4429                 return CMD_HELP;
4430         } else if (pathend == -1) {
4431                 /* no options */
4432                 pathend = argc;
4433         }
4434
4435         if (pathend > argc)
4436                 return CMD_HELP;
4437
4438         if (param->fp_recursive)
4439                 param->fp_max_depth = -1;
4440         else if (param->fp_verbose & VERBOSE_DETAIL)
4441                 param->fp_max_depth = 1;
4442
4443         if (!param->fp_verbose)
4444                 param->fp_verbose = VERBOSE_DEFAULT;
4445         if (param->fp_quiet)
4446                 param->fp_verbose = VERBOSE_OBJID;
4447
4448         do {
4449                 rc = llapi_getstripe(argv[pathstart], param);
4450         } while (++pathstart < pathend && !rc);
4451
4452         if (rc)
4453                 fprintf(stderr, "error: %s failed for %s.\n",
4454                         argv[0], argv[optind - 1]);
4455         return rc;
4456 }
4457
4458 static int lfs_tgts(int argc, char **argv)
4459 {
4460         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
4461         struct find_param param;
4462         int index = 0, rc=0;
4463
4464         if (argc > 2)
4465                 return CMD_HELP;
4466
4467         if (argc == 2 && !realpath(argv[1], path)) {
4468                 rc = -errno;
4469                 fprintf(stderr, "error: invalid path '%s': %s\n",
4470                         argv[1], strerror(-rc));
4471                 return rc;
4472         }
4473
4474         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
4475                 /* Check if we have a mount point */
4476                 if (mntdir[0] == '\0')
4477                         continue;
4478
4479                 memset(&param, 0, sizeof(param));
4480                 if (!strcmp(argv[0], "mdts"))
4481                         param.fp_get_lmv = 1;
4482
4483                 rc = llapi_ostlist(mntdir, &param);
4484                 if (rc) {
4485                         fprintf(stderr, "error: %s: failed on %s\n",
4486                                 argv[0], mntdir);
4487                 }
4488                 if (path[0] != '\0')
4489                         break;
4490                 memset(mntdir, 0, PATH_MAX);
4491         }
4492
4493         return rc;
4494 }
4495
4496 static int lfs_getstripe(int argc, char **argv)
4497 {
4498         struct find_param param = { 0 };
4499
4500         param.fp_max_depth = 1;
4501         return lfs_getstripe_internal(argc, argv, &param);
4502 }
4503
4504 /* functions */
4505 static int lfs_getdirstripe(int argc, char **argv)
4506 {
4507         struct find_param param = { 0 };
4508         struct option long_opts[] = {
4509         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
4510         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4511         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
4512         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
4513         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4514         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4515         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4516         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
4517         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4518         { .name = NULL } };
4519         int c, rc;
4520
4521         param.fp_get_lmv = 1;
4522
4523         while ((c = getopt_long(argc, argv,
4524                                 "cDHimO:rtTy", long_opts, NULL)) != -1)
4525         {
4526                 switch (c) {
4527                 case 'c':
4528                 case 'T':
4529                         param.fp_verbose |= VERBOSE_COUNT;
4530                         break;
4531                 case 'D':
4532                         param.fp_get_default_lmv = 1;
4533                         break;
4534                 case 'i':
4535                 case 'm':
4536                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
4537                         break;
4538 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4539                 case 't':
4540                         fprintf(stderr, "warning: '-t' deprecated, "
4541                                 "use '--mdt-hash' or '-H' instead\n");
4542 #endif
4543                 case 'H':
4544                         param.fp_verbose |= VERBOSE_HASH_TYPE;
4545                         break;
4546                 case 'O':
4547                         if (param.fp_obd_uuid) {
4548                                 fprintf(stderr,
4549                                         "error: %s: only one obduuid allowed",
4550                                         argv[0]);
4551                                 return CMD_HELP;
4552                         }
4553                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
4554                         break;
4555                 case 'r':
4556                         param.fp_recursive = 1;
4557                         break;
4558                 case 'y':
4559                         param.fp_yaml = 1;
4560                         break;
4561                 default:
4562                         return CMD_HELP;
4563                 }
4564         }
4565
4566         if (optind >= argc)
4567                 return CMD_HELP;
4568
4569         if (param.fp_recursive)
4570                 param.fp_max_depth = -1;
4571
4572         if (!param.fp_verbose)
4573                 param.fp_verbose = VERBOSE_DEFAULT;
4574
4575         do {
4576                 rc = llapi_getstripe(argv[optind], &param);
4577         } while (++optind < argc && !rc);
4578
4579         if (rc)
4580                 fprintf(stderr, "error: %s failed for %s.\n",
4581                         argv[0], argv[optind - 1]);
4582         return rc;
4583 }
4584
4585 enum mntdf_flags {
4586         MNTDF_INODES    = 0x0001,
4587         MNTDF_COOKED    = 0x0002,
4588         MNTDF_LAZY      = 0x0004,
4589         MNTDF_VERBOSE   = 0x0008,
4590         MNTDF_SHOW      = 0x0010,
4591 };
4592
4593 #define COOK(value)                                             \
4594 ({                                                              \
4595         int radix = 0;                                          \
4596         while (value > 1024) {                                  \
4597                 value /= 1024;                                  \
4598                 radix++;                                        \
4599         }                                                       \
4600         radix;                                                  \
4601 })
4602 #define UUF     "%-20s"
4603 #define CSF     "%11s"
4604 #define CDF     "%11llu"
4605 #define HDF     "%8.1f%c"
4606 #define RSF     "%4s"
4607 #define RDF     "%3d%%"
4608
4609 static inline int obd_statfs_ratio(const struct obd_statfs *st)
4610 {
4611         double avail, used, ratio = 0;
4612
4613         avail = st->os_bavail;
4614         used  = st->os_blocks - st->os_bfree;
4615         if (avail + used > 0)
4616                 ratio = used / (used + avail) * 100 + 0.5;
4617
4618         return (int)ratio;
4619 }
4620
4621 static int showdf(char *mntdir, struct obd_statfs *stat,
4622                   char *uuid, enum mntdf_flags flags,
4623                   char *type, int index, int rc)
4624 {
4625         long long avail, used, total;
4626         int ratio = 0;
4627         char *suffix = "KMGTPEZY";
4628         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
4629         char tbuf[3 * sizeof(__u64)];
4630         char ubuf[3 * sizeof(__u64)];
4631         char abuf[3 * sizeof(__u64)];
4632         char rbuf[3 * sizeof(__u64)];
4633
4634         if (!uuid || !stat)
4635                 return -EINVAL;
4636
4637         switch (rc) {
4638         case 0:
4639                 if (flags & MNTDF_INODES) {
4640                         avail = stat->os_ffree;
4641                         used = stat->os_files - stat->os_ffree;
4642                         total = stat->os_files;
4643                 } else {
4644                         int shift = flags & MNTDF_COOKED ? 0 : 10;
4645
4646                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
4647                         used  = ((stat->os_blocks - stat->os_bfree) *
4648                                  stat->os_bsize) >> shift;
4649                         total = (stat->os_blocks * stat->os_bsize) >> shift;
4650                 }
4651
4652                 ratio = obd_statfs_ratio(stat);
4653
4654                 if (flags & MNTDF_COOKED) {
4655                         int i;
4656                         double cook_val;
4657
4658                         cook_val = (double)total;
4659                         i = COOK(cook_val);
4660                         if (i > 0)
4661                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
4662                                          suffix[i - 1]);
4663                         else
4664                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
4665
4666                         cook_val = (double)used;
4667                         i = COOK(cook_val);
4668                         if (i > 0)
4669                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
4670                                          suffix[i - 1]);
4671                         else
4672                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
4673
4674                         cook_val = (double)avail;
4675                         i = COOK(cook_val);
4676                         if (i > 0)
4677                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
4678                                          suffix[i - 1]);
4679                         else
4680                                 snprintf(abuf, sizeof(abuf), CDF, avail);
4681                 } else {
4682                         snprintf(tbuf, sizeof(tbuf), CDF, total);
4683                         snprintf(ubuf, sizeof(tbuf), CDF, used);
4684                         snprintf(abuf, sizeof(tbuf), CDF, avail);
4685                 }
4686
4687                 sprintf(rbuf, RDF, ratio);
4688                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
4689                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
4690                 if (type)
4691                         printf("[%s:%d]", type, index);
4692
4693                 if (stat->os_state) {
4694                         /*
4695                          * Each character represents the matching
4696                          * OS_STATE_* bit.
4697                          */
4698                         const char state_names[] = "DRSI";
4699                         __u32      state;
4700                         __u32      i;
4701
4702                         printf(" ");
4703                         for (i = 0, state = stat->os_state;
4704                              state && i < sizeof(state_names); i++) {
4705                                 if (!(state & (1 << i)))
4706                                         continue;
4707                                 printf("%c", state_names[i]);
4708                                 state ^= 1 << i;
4709                         }
4710                 }
4711
4712                 printf("\n");
4713                 break;
4714         case -ENODATA:
4715                 printf(UUF": inactive device\n", uuid);
4716                 break;
4717         default:
4718                 printf(UUF": %s\n", uuid, strerror(-rc));
4719                 break;
4720         }
4721
4722         return 0;
4723 }
4724
4725 struct ll_stat_type {
4726         int   st_op;
4727         char *st_name;
4728 };
4729
4730 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
4731
4732 struct ll_statfs_data {
4733         int                     sd_index;
4734         struct obd_statfs       sd_st;
4735 };
4736
4737 struct ll_statfs_buf {
4738         int                     sb_count;
4739         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
4740 };
4741
4742 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
4743                  int ops, struct ll_statfs_buf *lsb)
4744 {
4745         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
4746         struct obd_uuid uuid_buf;
4747         char *poolname = NULL;
4748         struct ll_stat_type types[] = {
4749                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
4750                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
4751                 { .st_name = NULL } };
4752         struct ll_stat_type *tp;
4753         __u64 ost_ffree = 0;
4754         __u32 index;
4755         __u32 type;
4756         int fd;
4757         int rc = 0;
4758         int rc2;
4759
4760         if (pool) {
4761                 poolname = strchr(pool, '.');
4762                 if (poolname != NULL) {
4763                         if (strncmp(fsname, pool, strlen(fsname))) {
4764                                 fprintf(stderr, "filesystem name incorrect\n");
4765                                 return -ENODEV;
4766                         }
4767                         poolname++;
4768                 } else
4769                         poolname = pool;
4770         }
4771
4772         fd = open(mntdir, O_RDONLY);
4773         if (fd < 0) {
4774                 rc = -errno;
4775                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
4776                         strerror(errno));
4777                 return rc;
4778         }
4779
4780         if (flags & MNTDF_SHOW) {
4781                 if (flags & MNTDF_INODES)
4782                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4783                                "UUID", "Inodes", "IUsed", "IFree",
4784                                "IUse%", "Mounted on");
4785                 else
4786                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4787                                "UUID",
4788                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
4789                                "Used", "Available", "Use%", "Mounted on");
4790         }
4791
4792         for (tp = types; tp->st_name != NULL; tp++) {
4793                 bool have_ost = false;
4794
4795                 if (!(tp->st_op & ops))
4796                         continue;
4797
4798                 for (index = 0; ; index++) {
4799                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
4800                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
4801                         type = flags & MNTDF_LAZY ?
4802                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
4803                         rc2 = llapi_obd_fstatfs(fd, type, index,
4804                                                &stat_buf, &uuid_buf);
4805                         if (rc2 == -ENODEV)
4806                                 break;
4807                         if (rc2 == -EAGAIN)
4808                                 continue;
4809                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
4810                                 if (!(flags & MNTDF_VERBOSE))
4811                                         continue;
4812                         } else if (rc2 < 0 && rc == 0) {
4813                                 rc = rc2;
4814                         }
4815
4816                         /* If we have OSTs then don't report MDT block counts.
4817                          * For MDT-only filesystems the expectation is that all
4818                          * layouts have a DoM component.  For filesystems with
4819                          * OSTs, files are not necessarily going to store data
4820                          * on MDTs, and MDT space is limited to a fraction of
4821                          * OST space, so don't include it in the summary.
4822                          */
4823                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
4824                                 have_ost = true;
4825                                 sum.os_blocks = 0;
4826                                 sum.os_bfree = 0;
4827                                 sum.os_bavail = 0;
4828                         }
4829
4830                         if (poolname && tp->st_op == LL_STATFS_LOV &&
4831                             llapi_search_ost(fsname, poolname,
4832                                              obd_uuid2str(&uuid_buf)) != 1)
4833                                 continue;
4834
4835                         /* the llapi_obd_statfs() call may have returned with
4836                          * an error, but if it filled in uuid_buf we will at
4837                          * lease use that to print out a message for that OBD.
4838                          * If we didn't get anything in the uuid_buf, then fill
4839                          * it in so that we can print an error message. */
4840                         if (uuid_buf.uuid[0] == '\0')
4841                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
4842                                          "%s%04x", tp->st_name, index);
4843                         if (!rc && lsb) {
4844                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
4845                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
4846                                 lsb->sb_count++;
4847                         }
4848                         if (flags & MNTDF_SHOW)
4849                                 showdf(mntdir, &stat_buf,
4850                                        obd_uuid2str(&uuid_buf), flags,
4851                                        tp->st_name, index, rc2);
4852
4853                         if (rc2)
4854                                 continue;
4855
4856                         if (tp->st_op == LL_STATFS_LMV) {
4857                                 sum.os_ffree += stat_buf.os_ffree;
4858                                 sum.os_files += stat_buf.os_files;
4859                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
4860                                 ost_ffree += stat_buf.os_ffree;
4861                         }
4862                         sum.os_blocks += stat_buf.os_blocks *
4863                                          stat_buf.os_bsize;
4864                         sum.os_bfree  += stat_buf.os_bfree *
4865                                          stat_buf.os_bsize;
4866                         sum.os_bavail += stat_buf.os_bavail *
4867                                          stat_buf.os_bsize;
4868                 }
4869         }
4870
4871         close(fd);
4872
4873         /* If we don't have as many objects free on the OST as inodes
4874          * on the MDS, we reduce the total number of inodes to
4875          * compensate, so that the "inodes in use" number is correct.
4876          * Matches ll_statfs_internal() so the results are consistent. */
4877         if (ost_ffree < sum.os_ffree) {
4878                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
4879                 sum.os_ffree = ost_ffree;
4880         }
4881         if (flags & MNTDF_SHOW) {
4882                 printf("\n");
4883                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
4884                 printf("\n");
4885         }
4886
4887         return rc;
4888 }
4889
4890 static int ll_statfs_data_comp(const void *sd1, const void *sd2)
4891 {
4892         const struct obd_statfs *st1 = &((const struct ll_statfs_data *)sd1)->
4893                                                 sd_st;
4894         const struct obd_statfs *st2 = &((const struct ll_statfs_data *)sd2)->
4895                                                 sd_st;
4896         int r1 = obd_statfs_ratio(st1);
4897         int r2 = obd_statfs_ratio(st2);
4898         int64_t result = r1 - r2;
4899
4900         /* if both space usage are above 90, compare free inodes */
4901         if (r1 > 90 && r2 > 90)
4902                 result = st2->os_ffree - st1->os_ffree;
4903
4904         if (result < 0)
4905                 return -1;
4906         else if (result == 0)
4907                 return 0;
4908         else
4909                 return 1;
4910 }
4911
4912 /* functions */
4913 static int lfs_setdirstripe(int argc, char **argv)
4914 {
4915         char                    *dname;
4916         int                     result;
4917         struct lfs_setstripe_args        lsa = { 0 };
4918         struct llapi_stripe_param       *param = NULL;
4919         __u32                   mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
4920         char                    *end;
4921         int                     c;
4922         char                    *mode_opt = NULL;
4923         bool                    default_stripe = false;
4924         mode_t                  mode = S_IRWXU | S_IRWXG | S_IRWXO;
4925         mode_t                  previous_mode = 0;
4926         bool                    delete = false;
4927         struct ll_statfs_buf    *lsb = NULL;
4928         char                    mntdir[PATH_MAX] = "";
4929         bool                    auto_distributed = false;
4930
4931         struct option long_opts[] = {
4932         { .val = 'c',   .name = "count",        .has_arg = required_argument },
4933         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
4934         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
4935         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4936         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
4937         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4938         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
4939 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4940         { .val = 'i',   .name = "index",        .has_arg = required_argument },
4941 #endif
4942         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
4943 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4944         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
4945 #endif
4946         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4947 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
4948         { .name = NULL } };
4949
4950         setstripe_args_init(&lsa);
4951
4952         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:", long_opts,
4953                                 NULL)) >= 0) {
4954                 switch (c) {
4955                 case 0:
4956                         /* Long options. */
4957                         break;
4958                 case 'c':
4959                 case 'T':
4960                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
4961                         if (*end != '\0') {
4962                                 fprintf(stderr,
4963                                         "%s %s: invalid stripe count '%s'\n",
4964                                         progname, argv[0], optarg);
4965                                 return CMD_HELP;
4966                         }
4967                         break;
4968                 case 'd':
4969                         delete = true;
4970                         default_stripe = true;
4971                         break;
4972                 case 'D':
4973                         default_stripe = true;
4974                         break;
4975 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4976                 case 't':
4977                         fprintf(stderr, "warning: '--hash-type' and '-t' "
4978                               "deprecated, use '--mdt-hash' or '-H' instead\n");
4979 #endif
4980                 case 'H':
4981                         lsa.lsa_pattern = check_hashtype(optarg);
4982                         if (lsa.lsa_pattern == 0) {
4983                                 fprintf(stderr,
4984                                         "%s %s: bad stripe hash type '%s'\n",
4985                                         progname, argv[0], optarg);
4986                                 return CMD_HELP;
4987                         }
4988                         break;
4989                 case 'i':
4990 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4991                         if (strcmp(argv[optind - 1], "--index") == 0)
4992                                 fprintf(stderr,
4993                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
4994                                         progname, argv[0]);
4995 #endif
4996                         lsa.lsa_nr_tgts = parse_targets(mdts,
4997                                                 sizeof(mdts) / sizeof(__u32),
4998                                                 lsa.lsa_nr_tgts, optarg);
4999                         if (lsa.lsa_nr_tgts < 0) {
5000                                 fprintf(stderr,
5001                                         "%s %s: invalid MDT target(s) '%s'\n",
5002                                         progname, argv[0], optarg);
5003                                 return CMD_HELP;
5004                         }
5005
5006                         lsa.lsa_tgts = mdts;
5007                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5008                                 lsa.lsa_stripe_off = mdts[0];
5009                         break;
5010 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 16, 53, 0)
5011                 case 'm':
5012                         fprintf(stderr, "warning: '-m' is deprecated, "
5013                                 "use '--mode' or '-o' instead\n");
5014 #endif
5015                 case 'o':
5016                         mode_opt = optarg;
5017                         break;
5018                 default:
5019                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5020                                 progname, argv[0], argv[optind - 1]);
5021                         return CMD_HELP;
5022                 }
5023         }
5024
5025         if (optind == argc) {
5026                 fprintf(stderr, "%s %s: DIR must be specified\n",
5027                         progname, argv[0]);
5028                 return CMD_HELP;
5029         }
5030
5031         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
5032             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT) {
5033                 fprintf(stderr,
5034                         "%s %s: stripe offset and count must be specified\n",
5035                         progname, argv[0]);
5036                 return CMD_HELP;
5037         }
5038
5039         if (delete &&
5040             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
5041              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
5042                 fprintf(stderr,
5043                         "%s %s: cannot specify -d with -c or -i options\n",
5044                         progname, argv[0]);
5045                 return CMD_HELP;
5046         }
5047
5048         if (mode_opt != NULL) {
5049                 mode = strtoul(mode_opt, &end, 8);
5050                 if (*end != '\0') {
5051                         fprintf(stderr,
5052                                 "%s %s: bad MODE '%s'\n",
5053                                 progname, argv[0], mode_opt);
5054                         return CMD_HELP;
5055                 }
5056                 previous_mode = umask(0);
5057         }
5058
5059         /*
5060          * initialize stripe parameters, in case param is converted to specific,
5061          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
5062          */
5063         param = calloc(1, offsetof(typeof(*param),
5064                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
5065                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
5066         if (param == NULL) {
5067                 fprintf(stderr,
5068                         "%s %s: cannot allocate memory for parameters: %s\n",
5069                         progname, argv[0], strerror(ENOMEM));
5070                 return CMD_HELP;
5071         }
5072
5073         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
5074                 param->lsp_stripe_count = lsa.lsa_stripe_count;
5075         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5076                 param->lsp_stripe_offset = -1;
5077         else
5078                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
5079         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
5080                 param->lsp_stripe_pattern = lsa.lsa_pattern;
5081         else
5082                 param->lsp_stripe_pattern = LMV_HASH_TYPE_FNV_1A_64;
5083         param->lsp_pool = lsa.lsa_pool_name;
5084         param->lsp_is_specific = false;
5085         if (lsa.lsa_nr_tgts > 1) {
5086                 if (lsa.lsa_stripe_count > 0 &&
5087                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
5088                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
5089                         fprintf(stderr, "error: %s: stripe count %lld doesn't "
5090                                 "match the number of MDTs: %d\n",
5091                                 argv[0], lsa.lsa_stripe_count, lsa.lsa_nr_tgts);
5092                         free(param);
5093                         return CMD_HELP;
5094                 }
5095
5096                 param->lsp_is_specific = true;
5097                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
5098                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
5099         }
5100
5101         dname = argv[optind];
5102         do {
5103                 if (default_stripe) {
5104                         result = llapi_dir_set_default_lmv(dname, param);
5105                 } else {
5106                         /* if current \a dname isn't under the same \a mntdir
5107                          * as the last one, and the last one was
5108                          * auto-distributed, restore \a param.
5109                          */
5110                         if (mntdir[0] != '\0' &&
5111                             strncmp(dname, mntdir, strlen(mntdir)) &&
5112                             auto_distributed) {
5113                                 param->lsp_is_specific = false;
5114                                 param->lsp_stripe_offset = -1;
5115                                 auto_distributed = false;
5116                         }
5117
5118                         if (!param->lsp_is_specific &&
5119                             param->lsp_stripe_offset == -1) {
5120                                 char path[PATH_MAX] = "";
5121
5122                                 if (!lsb) {
5123                                         lsb = malloc(sizeof(*lsb));
5124                                         if (!lsb) {
5125                                                 result = -ENOMEM;
5126                                                 break;
5127                                         }
5128                                 }
5129                                 lsb->sb_count = 0;
5130
5131                                 /* use mntdir for dirname() temporarily */
5132                                 strncpy(mntdir, dname, sizeof(mntdir));
5133                                 if (!realpath(dirname(mntdir), path)) {
5134                                         result = -errno;
5135                                         fprintf(stderr,
5136                                                 "error: invalid path '%s': %s\n",
5137                                                 argv[optind], strerror(errno));
5138                                         break;
5139                                 }
5140                                 mntdir[0] = '\0';
5141
5142                                 result = llapi_search_mounts(path, 0, mntdir,
5143                                                              NULL);
5144                                 if (result < 0 || mntdir[0] == '\0') {
5145                                         fprintf(stderr,
5146                                                 "No suitable Lustre mount found\n");
5147                                         break;
5148                                 }
5149
5150                                 result = mntdf(mntdir, NULL, NULL, 0,
5151                                                LL_STATFS_LMV, lsb);
5152                                 if (result < 0)
5153                                         break;
5154
5155                                 if (param->lsp_stripe_count > lsb->sb_count) {
5156                                         fprintf(stderr,
5157                                                 "error: stripe count %d is too big\n",
5158                                                 param->lsp_stripe_count);
5159                                         result = -ERANGE;
5160                                         break;
5161                                 }
5162
5163                                 qsort(lsb->sb_buf, lsb->sb_count,
5164                                       sizeof(struct ll_statfs_data),
5165                                       ll_statfs_data_comp);
5166
5167                                 auto_distributed = true;
5168                         }
5169
5170                         if (auto_distributed) {
5171                                 int r;
5172                                 int nr = MAX(param->lsp_stripe_count,
5173                                              lsb->sb_count / 2);
5174
5175                                 /* don't use server whose usage is above 90% */
5176                                 while (nr != param->lsp_stripe_count &&
5177                                        obd_statfs_ratio(&lsb->sb_buf[nr].sd_st)
5178                                        > 90)
5179                                         nr = MAX(param->lsp_stripe_count,
5180                                                  nr / 2);
5181
5182                                 /* get \a r between [0, nr) */
5183                                 r = rand() % nr;
5184
5185                                 param->lsp_stripe_offset =
5186                                         lsb->sb_buf[r].sd_index;
5187                                 if (param->lsp_stripe_count > 1) {
5188                                         int i = 0;
5189
5190                                         param->lsp_is_specific = true;
5191                                         for (; i < param->lsp_stripe_count; i++)
5192                                                 param->lsp_tgts[(i + r) % nr] =
5193                                                         lsb->sb_buf[i].sd_index;
5194                                 }
5195                         }
5196
5197                         result = llapi_dir_create(dname, mode, param);
5198                 }
5199
5200                 if (result) {
5201                         fprintf(stderr,
5202                                 "%s setdirstripe: cannot create stripe dir '%s': %s\n",
5203                                 progname, dname, strerror(-result));
5204                         break;
5205                 }
5206                 dname = argv[++optind];
5207         } while (dname != NULL);
5208
5209         if (mode_opt != NULL)
5210                 umask(previous_mode);
5211
5212         free(lsb);
5213         free(param);
5214         return result;
5215 }
5216
5217 /* functions */
5218 static int lfs_rmentry(int argc, char **argv)
5219 {
5220         char *dname;
5221         int   index;
5222         int   result = 0;
5223
5224         if (argc <= 1) {
5225                 fprintf(stderr, "error: %s: missing dirname\n",
5226                         argv[0]);
5227                 return CMD_HELP;
5228         }
5229
5230         index = 1;
5231         dname = argv[index];
5232         while (dname != NULL) {
5233                 result = llapi_direntry_remove(dname);
5234                 if (result) {
5235                         fprintf(stderr, "error: %s: remove dir entry '%s' "
5236                                 "failed\n", argv[0], dname);
5237                         break;
5238                 }
5239                 dname = argv[++index];
5240         }
5241         return result;
5242 }
5243
5244 static int lfs_mv(int argc, char **argv)
5245 {
5246         struct lmv_user_md lmu = { LMV_USER_MAGIC };
5247         struct find_param param = {
5248                 .fp_max_depth = -1,
5249                 .fp_mdt_index = -1,
5250         };
5251         char *end;
5252         int c;
5253         int rc = 0;
5254         struct option long_opts[] = {
5255         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5256         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5257         { .name = NULL } };
5258
5259         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
5260                 switch (c) {
5261 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5262                 case 'M':
5263                         fprintf(stderr, "warning: '-M' deprecated"
5264                                 ", use '--mdt-index' or '-m' instead\n");
5265 #endif
5266                 case 'm':
5267                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
5268                         if (*end != '\0') {
5269                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
5270                                         progname, optarg);
5271                                 return CMD_HELP;
5272                         }
5273                         break;
5274                 case 'v':
5275                         param.fp_verbose = VERBOSE_DETAIL;
5276                         break;
5277                 default:
5278                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
5279                                 progname, argv[optind - 1]);
5280                         return CMD_HELP;
5281                 }
5282         }
5283
5284         if (lmu.lum_stripe_offset == -1) {
5285                 fprintf(stderr, "%s mv: MDT index must be specified\n",
5286                         progname);
5287                 return CMD_HELP;
5288         }
5289
5290         if (optind >= argc) {
5291                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
5292                 return CMD_HELP;
5293         }
5294
5295
5296         /* initialize migrate mdt parameters */
5297         param.fp_lmv_md = &lmu;
5298         param.fp_migrate = 1;
5299         rc = llapi_migrate_mdt(argv[optind], &param);
5300         if (rc != 0)
5301                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
5302                         progname, argv[optind], param.fp_mdt_index,
5303                         strerror(-rc));
5304         return rc;
5305 }
5306
5307 static int lfs_osts(int argc, char **argv)
5308 {
5309         return lfs_tgts(argc, argv);
5310 }
5311
5312 static int lfs_mdts(int argc, char **argv)
5313 {
5314         return lfs_tgts(argc, argv);
5315 }
5316
5317 static int lfs_df(int argc, char **argv)
5318 {
5319         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5320         enum mntdf_flags flags = MNTDF_SHOW;
5321         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
5322         int c, rc = 0, index = 0;
5323         char fsname[PATH_MAX] = "", *pool_name = NULL;
5324         struct option long_opts[] = {
5325         { .val = 'h',   .name = "human-readable",
5326                                                 .has_arg = no_argument },
5327         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
5328         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
5329         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
5330         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5331         { .name = NULL} };
5332
5333         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
5334                 switch (c) {
5335                 case 'h':
5336                         flags |= MNTDF_COOKED;
5337                         break;
5338                 case 'i':
5339                         flags |= MNTDF_INODES;
5340                         break;
5341                 case 'l':
5342                         flags |= MNTDF_LAZY;
5343                         break;
5344                 case 'p':
5345                         pool_name = optarg;
5346                         break;
5347                 case 'v':
5348                         flags |= MNTDF_VERBOSE;
5349                         break;
5350                 default:
5351                         return CMD_HELP;
5352                 }
5353         }
5354         if (optind < argc && !realpath(argv[optind], path)) {
5355                 rc = -errno;
5356                 fprintf(stderr, "error: invalid path '%s': %s\n",
5357                         argv[optind], strerror(-rc));
5358                 return rc;
5359         }
5360
5361         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5362                 /* Check if we have a mount point */
5363                 if (mntdir[0] == '\0')
5364                         continue;
5365
5366                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
5367                 if (rc || path[0] != '\0')
5368                         break;
5369                 fsname[0] = '\0'; /* avoid matching in next loop */
5370                 mntdir[0] = '\0'; /* avoid matching in next loop */
5371         }
5372
5373         return rc;
5374 }
5375
5376 static int lfs_getname(int argc, char **argv)
5377 {
5378         char mntdir[PATH_MAX] = "", path[PATH_MAX] = "", fsname[PATH_MAX] = "";
5379         int rc = 0, index = 0, c;
5380         char buf[sizeof(struct obd_uuid)];
5381
5382         while ((c = getopt(argc, argv, "h")) != -1)
5383                 return CMD_HELP;
5384
5385         if (optind == argc) { /* no paths specified, get all paths. */
5386                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5387                         rc = llapi_getname(mntdir, buf, sizeof(buf));
5388                         if (rc < 0) {
5389                                 fprintf(stderr,
5390                                         "cannot get name for `%s': %s\n",
5391                                         mntdir, strerror(-rc));
5392                                 break;
5393                         }
5394
5395                         printf("%s %s\n", buf, mntdir);
5396
5397                         path[0] = fsname[0] = mntdir[0] = 0;
5398                 }
5399         } else { /* paths specified, only attempt to search these. */
5400                 for (; optind < argc; optind++) {
5401                         rc = llapi_getname(argv[optind], buf, sizeof(buf));
5402                         if (rc < 0) {
5403                                 fprintf(stderr,
5404                                         "cannot get name for `%s': %s\n",
5405                                         argv[optind], strerror(-rc));
5406                                 break;
5407                         }
5408
5409                         printf("%s %s\n", buf, argv[optind]);
5410                 }
5411         }
5412         return rc;
5413 }
5414
5415 static int lfs_check(int argc, char **argv)
5416 {
5417         char mntdir[PATH_MAX] = {'\0'};
5418         int num_types = 1;
5419         char *obd_types[3];
5420         char obd_type1[4];
5421         char obd_type2[4];
5422         char obd_type3[4];
5423         int rc;
5424
5425         if (argc != 2) {
5426                 fprintf(stderr, "%s check: server type must be specified\n",
5427                         progname);
5428                 return CMD_HELP;
5429         }
5430
5431         obd_types[0] = obd_type1;
5432         obd_types[1] = obd_type2;
5433         obd_types[2] = obd_type3;
5434
5435         if (strcmp(argv[1], "osts") == 0) {
5436                 strcpy(obd_types[0], "osc");
5437         } else if (strcmp(argv[1], "mdts") == 0 ||
5438                    strcmp(argv[1], "mds") == 0) {
5439                 strcpy(obd_types[0], "mdc");
5440         } else if (strcmp(argv[1], "mgts") == 0) {
5441                 strcpy(obd_types[0], "mgc");
5442         } else if (strcmp(argv[1], "all") == 0 ||
5443                    strcmp(argv[1], "servers") == 0) {
5444                 num_types = 3;
5445                 strcpy(obd_types[0], "osc");
5446                 strcpy(obd_types[1], "mdc");
5447                 strcpy(obd_types[2], "mgc");
5448         } else {
5449                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
5450                         progname, argv[1]);
5451                 return CMD_HELP;
5452         }
5453
5454         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
5455         if (rc < 0 || mntdir[0] == '\0') {
5456                 fprintf(stderr,
5457                         "%s check: cannot find mounted Lustre filesystem: %s\n",
5458                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
5459                 return rc;
5460         }
5461
5462         rc = llapi_target_check(num_types, obd_types, mntdir);
5463         if (rc)
5464                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
5465                         progname, argv[1], strerror(-rc));
5466
5467         return rc;
5468
5469 }
5470
5471 #ifdef HAVE_SYS_QUOTA_H
5472 #define ARG2INT(nr, str, msg)                                           \
5473 do {                                                                    \
5474         char *endp;                                                     \
5475         nr = strtol(str, &endp, 0);                                     \
5476         if (*endp != '\0') {                                            \
5477                 fprintf(stderr, "%s: bad %s '%s'\n",                    \
5478                         progname, msg, str);                            \
5479                 return CMD_HELP;                                        \
5480         }                                                               \
5481 } while (0)
5482
5483 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
5484
5485 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
5486  * returns the value or ULONG_MAX on integer overflow or incorrect format
5487  * Notes:
5488  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
5489  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
5490  *        3. empty integer value is interpreted as 0
5491  */
5492 static unsigned long str2sec(const char* timestr)
5493 {
5494         const char spec[] = "smhdw";
5495         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5496         unsigned long val = 0;
5497         char *tail;
5498
5499         if (strpbrk(timestr, spec) == NULL) {
5500                 /* no specifiers inside the time string,
5501                    should treat it as an integer value */
5502                 val = strtoul(timestr, &tail, 10);
5503                 return *tail ? ULONG_MAX : val;
5504         }
5505
5506         /* format string is XXwXXdXXhXXmXXs */
5507         while (*timestr) {
5508                 unsigned long v;
5509                 int ind;
5510                 char* ptr;
5511
5512                 v = strtoul(timestr, &tail, 10);
5513                 if (v == ULONG_MAX || *tail == '\0')
5514                         /* value too large (ULONG_MAX or more)
5515                            or missing specifier */
5516                         goto error;
5517
5518                 ptr = strchr(spec, *tail);
5519                 if (ptr == NULL)
5520                         /* unknown specifier */
5521                         goto error;
5522
5523                 ind = ptr - spec;
5524
5525                 /* check if product will overflow the type */
5526                 if (!(v < ULONG_MAX / mult[ind]))
5527                         goto error;
5528
5529                 ADD_OVERFLOW(val, mult[ind] * v);
5530                 if (val == ULONG_MAX)
5531                         goto error;
5532
5533                 timestr = tail + 1;
5534         }
5535
5536         return val;
5537
5538 error:
5539         return ULONG_MAX;
5540 }
5541
5542 #define ARG2ULL(nr, str, def_units)                                     \
5543 do {                                                                    \
5544         unsigned long long limit, units = def_units;                    \
5545         int rc;                                                         \
5546                                                                         \
5547         rc = llapi_parse_size(str, &limit, &units, 1);                  \
5548         if (rc < 0) {                                                   \
5549                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
5550                         progname, str);                                 \
5551                 return CMD_HELP;                                        \
5552         }                                                               \
5553         nr = limit;                                                     \
5554 } while (0)
5555
5556 static inline int has_times_option(int argc, char **argv)
5557 {
5558         int i;
5559
5560         for (i = 1; i < argc; i++)
5561                 if (!strcmp(argv[i], "-t"))
5562                         return 1;
5563
5564         return 0;
5565 }
5566
5567 int lfs_setquota_times(int argc, char **argv)
5568 {
5569         int c, rc;
5570         struct if_quotactl qctl;
5571         char *mnt, *obd_type = (char *)qctl.obd_type;
5572         struct obd_dqblk *dqb = &qctl.qc_dqblk;
5573         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
5574         struct option long_opts[] = {
5575         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
5576         { .val = 'g',   .name = "group",        .has_arg = no_argument },
5577         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
5578         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
5579         { .val = 't',   .name = "times",        .has_arg = no_argument },
5580         { .val = 'u',   .name = "user",         .has_arg = no_argument },
5581         { .name = NULL } };
5582         int qtype;
5583
5584         memset(&qctl, 0, sizeof(qctl));
5585         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
5586         qctl.qc_type = ALLQUOTA;
5587
5588         while ((c = getopt_long(argc, argv, "b:gi:ptu",
5589                                 long_opts, NULL)) != -1) {
5590                 switch (c) {
5591                 case 'u':
5592                         qtype = USRQUOTA;
5593                         goto quota_type;
5594                 case 'g':
5595                         qtype = GRPQUOTA;
5596                         goto quota_type;
5597                 case 'p':
5598                         qtype = PRJQUOTA;
5599 quota_type:
5600                         if (qctl.qc_type != ALLQUOTA) {
5601                                 fprintf(stderr, "error: -u/g/p can't be used "
5602                                                 "more than once\n");
5603                                 return CMD_HELP;
5604                         }
5605                         qctl.qc_type = qtype;
5606                         break;
5607                 case 'b':
5608                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
5609                                 fprintf(stderr, "error: bad block-grace: %s\n",
5610                                         optarg);
5611                                 return CMD_HELP;
5612                         }
5613                         dqb->dqb_valid |= QIF_BTIME;
5614                         break;
5615                 case 'i':
5616                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
5617                                 fprintf(stderr, "error: bad inode-grace: %s\n",
5618                                         optarg);
5619                                 return CMD_HELP;
5620                         }
5621                         dqb->dqb_valid |= QIF_ITIME;
5622                         break;
5623                 case 't': /* Yes, of course! */
5624                         break;
5625                 default: /* getopt prints error message for us when opterr != 0 */
5626                         return CMD_HELP;
5627                 }
5628         }
5629
5630         if (qctl.qc_type == ALLQUOTA) {
5631                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
5632                 return CMD_HELP;
5633         }
5634
5635         if (optind != argc - 1) {
5636                 fprintf(stderr, "error: unexpected parameters encountered\n");
5637                 return CMD_HELP;
5638         }
5639
5640         if ((dqb->dqb_valid | QIF_BTIME && dqi->dqi_bgrace >= UINT_MAX) ||
5641             (dqb->dqb_valid | QIF_ITIME && dqi->dqi_igrace >= UINT_MAX)) {
5642                 fprintf(stderr, "error: grace time is too large\n");
5643                 return CMD_HELP;
5644         }
5645
5646         mnt = argv[optind];
5647         rc = llapi_quotactl(mnt, &qctl);
5648         if (rc) {
5649                 if (*obd_type)
5650                         fprintf(stderr, "%s %s ", obd_type,
5651                                 obd_uuid2str(&qctl.obd_uuid));
5652                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
5653                 return rc;
5654         }
5655
5656         return 0;
5657 }
5658
5659 #define BSLIMIT (1 << 0)
5660 #define BHLIMIT (1 << 1)
5661 #define ISLIMIT (1 << 2)
5662 #define IHLIMIT (1 << 3)
5663
5664 int lfs_setquota(int argc, char **argv)
5665 {
5666         int c, rc = 0;
5667         struct if_quotactl qctl;
5668         char *mnt, *obd_type = (char *)qctl.obd_type;
5669         struct obd_dqblk *dqb = &qctl.qc_dqblk;
5670         struct option long_opts[] = {
5671         { .val = 'b',   .name = "block-softlimit",
5672                                                 .has_arg = required_argument },
5673         { .val = 'B',   .name = "block-hardlimit",
5674                                                 .has_arg = required_argument },
5675         { .val = 'd',   .name = "default",      .has_arg = no_argument },
5676         { .val = 'g',   .name = "group",        .has_arg = required_argument },
5677         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
5678         { .val = 'i',   .name = "inode-softlimit",
5679                                                 .has_arg = required_argument },
5680         { .val = 'I',   .name = "inode-hardlimit",
5681                                                 .has_arg = required_argument },
5682         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
5683         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
5684         { .val = 'u',   .name = "user",         .has_arg = required_argument },
5685         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
5686         { .name = NULL } };
5687         unsigned limit_mask = 0;
5688         char *endptr;
5689         bool use_default = false;
5690         int qtype;
5691
5692         if (has_times_option(argc, argv))
5693                 return lfs_setquota_times(argc, argv);
5694
5695         memset(&qctl, 0, sizeof(qctl));
5696         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
5697         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
5698                                   * so it can be used as a marker that qc_type
5699                                   * isn't reinitialized from command line */
5700
5701         while ((c = getopt_long(argc, argv, "b:B:dg:Gi:I:p:Pu:U",
5702                 long_opts, NULL)) != -1) {
5703                 switch (c) {
5704                 case 'U':
5705                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5706                         qtype = USRQUOTA;
5707                         qctl.qc_id = 0;
5708                         goto quota_type_def;
5709                 case 'u':
5710                         qtype = USRQUOTA;
5711                         rc = name2uid(&qctl.qc_id, optarg);
5712                         goto quota_type;
5713                 case 'G':
5714                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5715                         qtype = GRPQUOTA;
5716                         qctl.qc_id = 0;
5717                         goto quota_type_def;
5718                 case 'g':
5719                         qtype = GRPQUOTA;
5720                         rc = name2gid(&qctl.qc_id, optarg);
5721                         goto quota_type;
5722                 case 'P':
5723                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5724                         qtype = PRJQUOTA;
5725                         qctl.qc_id = 0;
5726                         goto quota_type_def;
5727                 case 'p':
5728                         qtype = PRJQUOTA;
5729                         rc = name2projid(&qctl.qc_id, optarg);
5730 quota_type:
5731                         if (rc) {
5732                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
5733                                 if (*endptr != '\0') {
5734                                         fprintf(stderr, "%s setquota: invalid"
5735                                                 " id '%s'\n", progname, optarg);
5736                                         return -1;
5737                                 }
5738                         }
5739
5740                         if (qctl.qc_id == 0) {
5741                                 fprintf(stderr, "%s setquota: can't set quota"
5742                                         " for root usr/group/project.\n",
5743                                         progname);
5744                                 return -1;
5745                         }
5746
5747 quota_type_def:
5748                         if (qctl.qc_type != ALLQUOTA) {
5749                                 fprintf(stderr,
5750                                         "%s setquota: only one of -u, -U, -g,"
5751                                         " -G, -p or -P may be specified\n",
5752                                         progname);
5753                                 return CMD_HELP;
5754                         }
5755                         qctl.qc_type = qtype;
5756                         break;
5757                 case 'd':
5758                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5759                         use_default = true;
5760                         break;
5761                 case 'b':
5762                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
5763                         dqb->dqb_bsoftlimit >>= 10;
5764                         limit_mask |= BSLIMIT;
5765                         if (dqb->dqb_bsoftlimit &&
5766                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
5767                                 fprintf(stderr,
5768                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\n"
5769                                         "See '%s help setquota' or Lustre manual for details\n",
5770                                         progname, dqb->dqb_bsoftlimit,
5771                                         progname);
5772                         break;
5773                 case 'B':
5774                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
5775                         dqb->dqb_bhardlimit >>= 10;
5776                         limit_mask |= BHLIMIT;
5777                         if (dqb->dqb_bhardlimit &&
5778                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
5779                                 fprintf(stderr,
5780                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
5781                                         "See '%s help setquota' or Lustre manual for details\n",
5782                                         progname, dqb->dqb_bhardlimit,
5783                                         progname);
5784                         break;
5785                 case 'i':
5786                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
5787                         limit_mask |= ISLIMIT;
5788                         if (dqb->dqb_isoftlimit &&
5789                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
5790                                 fprintf(stderr,
5791                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\n"
5792                                         "See '%s help setquota' or Lustre manual for details\n",
5793                                         progname, dqb->dqb_isoftlimit,
5794                                         progname);
5795                         break;
5796                 case 'I':
5797                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
5798                         limit_mask |= IHLIMIT;
5799                         if (dqb->dqb_ihardlimit &&
5800                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
5801                                 fprintf(stderr,
5802                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\n"
5803                                         "See '%s help setquota' or Lustre manual for details\n",
5804                                         progname, dqb->dqb_ihardlimit,
5805                                         progname);
5806                         break;
5807                 default:
5808                         fprintf(stderr,
5809                                 "%s setquota: unrecognized option '%s'\n",
5810                                 progname, argv[optind - 1]);
5811                         return CMD_HELP;
5812                 }
5813         }
5814
5815         if (qctl.qc_type == ALLQUOTA) {
5816                 fprintf(stderr,
5817                         "%s setquota: either -u or -g must be specified\n",
5818                         progname);
5819                 return CMD_HELP;
5820         }
5821
5822         if (!use_default && limit_mask == 0) {
5823                 fprintf(stderr,
5824                         "%s setquota: at least one limit must be specified\n",
5825                         progname);
5826                 return CMD_HELP;
5827         }
5828
5829         if (use_default && limit_mask != 0) {
5830                 fprintf(stderr,
5831                         "%s setquota: limits should not be specified when"
5832                         " using default quota\n",
5833                         progname);
5834                 return CMD_HELP;
5835         }
5836
5837         if (use_default && qctl.qc_id == 0) {
5838                 fprintf(stderr,
5839                         "%s setquota: can not set default quota for root"
5840                         " user/group/project\n",
5841                         progname);
5842                 return CMD_HELP;
5843         }
5844
5845         if (optind != argc - 1) {
5846                 fprintf(stderr,
5847                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
5848                         progname, argv[optind]);
5849                 return CMD_HELP;
5850         }
5851
5852         mnt = argv[optind];
5853
5854         if (use_default) {
5855                 dqb->dqb_bhardlimit = 0;
5856                 dqb->dqb_bsoftlimit = 0;
5857                 dqb->dqb_ihardlimit = 0;
5858                 dqb->dqb_isoftlimit = 0;
5859                 dqb->dqb_itime = 0;
5860                 dqb->dqb_btime = 0;
5861                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
5862         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
5863                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
5864                 /* sigh, we can't just set blimits/ilimits */
5865                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
5866                                                .qc_type = qctl.qc_type,
5867                                                .qc_id   = qctl.qc_id};
5868
5869                 rc = llapi_quotactl(mnt, &tmp_qctl);
5870                 if (rc < 0)
5871                         return rc;
5872
5873                 if (!(limit_mask & BHLIMIT))
5874                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
5875                 if (!(limit_mask & BSLIMIT))
5876                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
5877                 if (!(limit_mask & IHLIMIT))
5878                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
5879                 if (!(limit_mask & ISLIMIT))
5880                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
5881
5882                 /* Keep grace times if we have got no softlimit arguments */
5883                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
5884                         dqb->dqb_valid |= QIF_BTIME;
5885                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
5886                 }
5887
5888                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
5889                         dqb->dqb_valid |= QIF_ITIME;
5890                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
5891                 }
5892         }
5893
5894         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
5895         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
5896
5897         rc = llapi_quotactl(mnt, &qctl);
5898         if (rc) {
5899                 if (*obd_type)
5900                         fprintf(stderr,
5901                                 "%s setquota: cannot quotactl '%s' '%s': %s",
5902                                 progname, obd_type,
5903                                 obd_uuid2str(&qctl.obd_uuid), strerror(-rc));
5904                 return rc;
5905         }
5906
5907         return 0;
5908 }
5909
5910 /* Converts seconds value into format string
5911  * result is returned in buf
5912  * Notes:
5913  *        1. result is in descenting order: 1w2d3h4m5s
5914  *        2. zero fields are not filled (except for p. 3): 5d1s
5915  *        3. zero seconds value is presented as "0s"
5916  */
5917 static char * __sec2str(time_t seconds, char *buf)
5918 {
5919         const char spec[] = "smhdw";
5920         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5921         unsigned long c;
5922         char *tail = buf;
5923         int i;
5924
5925         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
5926                 c = seconds / mult[i];
5927
5928                 if (c > 0 || (i == 0 && buf == tail))
5929                         tail += snprintf(tail, 40-(tail-buf), "%lu%c", c, spec[i]);
5930
5931                 seconds %= mult[i];
5932         }
5933
5934         return tail;
5935 }
5936
5937 static void sec2str(time_t seconds, char *buf, int rc)
5938 {
5939         char *tail = buf;
5940
5941         if (rc)
5942                 *tail++ = '[';
5943
5944         tail = __sec2str(seconds, tail);
5945
5946         if (rc && tail - buf < 39) {
5947                 *tail++ = ']';
5948                 *tail++ = 0;
5949         }
5950 }
5951
5952 static void diff2str(time_t seconds, char *buf, time_t now)
5953 {
5954
5955         buf[0] = 0;
5956         if (!seconds)
5957                 return;
5958         if (seconds <= now) {
5959                 strcpy(buf, "none");
5960                 return;
5961         }
5962         __sec2str(seconds - now, buf);
5963 }
5964
5965 static void print_quota_title(char *name, struct if_quotactl *qctl,
5966                               bool human_readable, bool show_default)
5967 {
5968         if (show_default) {
5969                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
5970                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
5971                        "Filesystem", "bquota", "blimit", "bgrace",
5972                        "iquota", "ilimit", "igrace");
5973         } else {
5974                 printf("Disk quotas for %s %s (%cid %u):\n",
5975                        qtype_name(qctl->qc_type), name,
5976                        *qtype_name(qctl->qc_type), qctl->qc_id);
5977                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
5978                        "Filesystem", human_readable ? "used" : "kbytes",
5979                        "quota", "limit", "grace",
5980                        "files", "quota", "limit", "grace");
5981         }
5982 }
5983
5984 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
5985 {
5986         if (!h) {
5987                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
5988         } else {
5989                 if (num >> 40)
5990                         snprintf(buf, buflen, "%5.4gP",
5991                                  (double)num / ((__u64)1 << 40));
5992                 else if (num >> 30)
5993                         snprintf(buf, buflen, "%5.4gT",
5994                                  (double)num / (1 << 30));
5995                 else if (num >> 20)
5996                         snprintf(buf, buflen, "%5.4gG",
5997                                  (double)num / (1 << 20));
5998                 else if (num >> 10)
5999                         snprintf(buf, buflen, "%5.4gM",
6000                                  (double)num / (1 << 10));
6001                 else
6002                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
6003         }
6004 }
6005
6006 #define STRBUF_LEN      32
6007 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
6008                         int rc, bool h, bool show_default)
6009 {
6010         time_t now;
6011
6012         time(&now);
6013
6014         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
6015             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) {
6016                 int bover = 0, iover = 0;
6017                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
6018                 char numbuf[3][STRBUF_LEN];
6019                 char timebuf[40];
6020                 char strbuf[STRBUF_LEN];
6021
6022                 if (dqb->dqb_bhardlimit &&
6023                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
6024                         bover = 1;
6025                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
6026                         if (dqb->dqb_btime > now) {
6027                                 bover = 2;
6028                         } else {
6029                                 bover = 3;
6030                         }
6031                 }
6032
6033                 if (dqb->dqb_ihardlimit &&
6034                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
6035                         iover = 1;
6036                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
6037                         if (dqb->dqb_itime > now) {
6038                                 iover = 2;
6039                         } else {
6040                                 iover = 3;
6041                         }
6042                 }
6043
6044
6045                 if (strlen(mnt) > 15)
6046                         printf("%s\n%15s", mnt, "");
6047                 else
6048                         printf("%15s", mnt);
6049
6050                 if (bover)
6051                         diff2str(dqb->dqb_btime, timebuf, now);
6052                 else if (show_default)
6053                         snprintf(timebuf, sizeof(timebuf), "%llu",
6054                                  dqb->dqb_btime);
6055
6056                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
6057                            strbuf, sizeof(strbuf), h);
6058                 if (rc == -EREMOTEIO)
6059                         sprintf(numbuf[0], "%s*", strbuf);
6060                 else
6061                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
6062                                 "%s" : "[%s]", strbuf);
6063
6064                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
6065                 if (type == QC_GENERAL)
6066                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
6067                                 "%s" : "[%s]", strbuf);
6068                 else
6069                         sprintf(numbuf[1], "%s", "-");
6070
6071                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
6072                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
6073                         "%s" : "[%s]", strbuf);
6074
6075                 if (show_default)
6076                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6077                 else
6078                         printf(" %7s%c %6s %7s %7s",
6079                                numbuf[0], bover ? '*' : ' ', numbuf[1],
6080                                numbuf[2], bover > 1 ? timebuf : "-");
6081
6082
6083                 if (iover)
6084                         diff2str(dqb->dqb_itime, timebuf, now);
6085                 else if (show_default)
6086                         snprintf(timebuf, sizeof(timebuf), "%llu",
6087                                  dqb->dqb_itime);
6088
6089                 snprintf(numbuf[0], sizeof(numbuf),
6090                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
6091                          (uintmax_t)dqb->dqb_curinodes);
6092
6093                 if (type == QC_GENERAL)
6094                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
6095                                 "%ju" : "[%ju]",
6096                                 (uintmax_t)dqb->dqb_isoftlimit);
6097                 else
6098                         sprintf(numbuf[1], "%s", "-");
6099
6100                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
6101                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
6102
6103                 if (show_default)
6104                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6105                 else if (type != QC_OSTIDX)
6106                         printf(" %7s%c %6s %7s %7s",
6107                                numbuf[0], iover ? '*' : ' ', numbuf[1],
6108                                numbuf[2], iover > 1 ? timebuf : "-");
6109                 else
6110                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
6111                 printf("\n");
6112
6113         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
6114                    qctl->qc_cmd == Q_GETOINFO) {
6115                 char bgtimebuf[40];
6116                 char igtimebuf[40];
6117
6118                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
6119                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
6120                 printf("Block grace time: %s; Inode grace time: %s\n",
6121                        bgtimebuf, igtimebuf);
6122         }
6123 }
6124
6125 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
6126                            bool h, __u64 *total)
6127 {
6128         int rc = 0, rc1 = 0, count = 0;
6129         __u32 valid = qctl->qc_valid;
6130
6131         rc = llapi_get_obd_count(mnt, &count, is_mdt);
6132         if (rc) {
6133                 fprintf(stderr, "can not get %s count: %s\n",
6134                         is_mdt ? "mdt": "ost", strerror(-rc));
6135                 return rc;
6136         }
6137
6138         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
6139                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
6140                 rc = llapi_quotactl(mnt, qctl);
6141                 if (rc) {
6142                         /* It is remote client case. */
6143                         if (rc == -EOPNOTSUPP) {
6144                                 rc = 0;
6145                                 goto out;
6146                         }
6147
6148                         if (!rc1)
6149                                 rc1 = rc;
6150                         fprintf(stderr, "quotactl %s%d failed.\n",
6151                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
6152                         continue;
6153                 }
6154
6155                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
6156                             qctl->qc_valid, 0, h, false);
6157                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
6158                                    qctl->qc_dqblk.dqb_bhardlimit;
6159         }
6160 out:
6161         qctl->qc_valid = valid;
6162         return rc ? : rc1;
6163 }
6164
6165 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
6166                            int verbose, int quiet, bool human_readable,
6167                            bool show_default)
6168 {
6169         int rc1 = 0, rc2 = 0, rc3 = 0;
6170         char *obd_type = (char *)qctl->obd_type;
6171         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
6172         __u64 total_ialloc = 0, total_balloc = 0;
6173         bool use_default_for_blk = false;
6174         bool use_default_for_file = false;
6175         int inacc;
6176
6177         rc1 = llapi_quotactl(mnt, qctl);
6178         if (rc1 < 0) {
6179                 switch (rc1) {
6180                 case -ESRCH:
6181                         fprintf(stderr, "%s quotas are not enabled.\n",
6182                                 qtype_name(qctl->qc_type));
6183                         goto out;
6184                 case -EPERM:
6185                         fprintf(stderr, "Permission denied.\n");
6186                 case -ENODEV:
6187                 case -ENOENT:
6188                         /* We already got error message. */
6189                         goto out;
6190                 default:
6191                         fprintf(stderr, "Unexpected quotactl error: %s\n",
6192                                 strerror(-rc1));
6193                 }
6194         }
6195
6196         if (!show_default && qctl->qc_id == 0) {
6197                 qctl->qc_dqblk.dqb_bhardlimit = 0;
6198                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
6199                 qctl->qc_dqblk.dqb_ihardlimit = 0;
6200                 qctl->qc_dqblk.dqb_isoftlimit = 0;
6201                 qctl->qc_dqblk.dqb_btime = 0;
6202                 qctl->qc_dqblk.dqb_itime = 0;
6203                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
6204         }
6205
6206         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
6207             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
6208                 use_default_for_blk = true;
6209                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
6210         }
6211
6212         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
6213             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
6214                 use_default_for_file = true;
6215                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
6216         }
6217
6218         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
6219              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
6220                 print_quota_title(name, qctl, human_readable, show_default);
6221
6222         if (rc1 && *obd_type)
6223                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
6224
6225         if (qctl->qc_valid != QC_GENERAL)
6226                 mnt = "";
6227
6228         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA) &&
6229                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
6230                  (QIF_LIMITS|QIF_USAGE));
6231
6232         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
6233
6234         if (!show_default && verbose &&
6235             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO) {
6236                 char strbuf[STRBUF_LEN];
6237
6238                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
6239                                       &total_ialloc);
6240                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
6241                                       &total_balloc);
6242                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
6243                            human_readable);
6244                 printf("Total allocated inode limit: %ju, total "
6245                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
6246                        strbuf);
6247         }
6248
6249         if (use_default_for_blk)
6250                 printf("%cid %u is using default block quota setting\n",
6251                        *qtype_name(qctl->qc_type), qctl->qc_id);
6252
6253         if (use_default_for_file)
6254                 printf("%cid %u is using default file quota setting\n",
6255                        *qtype_name(qctl->qc_type), qctl->qc_id);
6256
6257         if (rc1 || rc2 || rc3 || inacc)
6258                 printf("Some errors happened when getting quota info. "
6259                        "Some devices may be not working or deactivated. "
6260                        "The data in \"[]\" is inaccurate.\n");
6261 out:
6262         return rc1;
6263
6264 }
6265
6266 static int lfs_project(int argc, char **argv)
6267 {
6268         int ret = 0, err = 0, c, i;
6269         struct project_handle_control phc = { 0 };
6270         enum lfs_project_ops_t op;
6271
6272         phc.newline = true;
6273         phc.assign_projid = false;
6274         /* default action */
6275         op = LFS_PROJECT_LIST;
6276
6277         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
6278                 switch (c) {
6279                 case 'c':
6280                         if (op != LFS_PROJECT_LIST) {
6281                                 fprintf(stderr,
6282                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6283                                         progname);
6284                                 return CMD_HELP;
6285                         }
6286
6287                         op = LFS_PROJECT_CHECK;
6288                         break;
6289                 case 'C':
6290                         if (op != LFS_PROJECT_LIST) {
6291                                 fprintf(stderr,
6292                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6293                                         progname);
6294                                 return CMD_HELP;
6295                         }
6296
6297                         op = LFS_PROJECT_CLEAR;
6298                         break;
6299                 case 's':
6300                         if (op != LFS_PROJECT_LIST) {
6301                                 fprintf(stderr,
6302                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6303                                         progname);
6304                                 return CMD_HELP;
6305                         }
6306
6307                         phc.set_inherit = true;
6308                         op = LFS_PROJECT_SET;
6309                         break;
6310                 case 'd':
6311                         phc.dironly = true;
6312                         break;
6313                 case 'k':
6314                         phc.keep_projid = true;
6315                         break;
6316                 case 'r':
6317                         phc.recursive = true;
6318                         break;
6319                 case 'p':
6320                         phc.projid = strtoul(optarg, NULL, 0);
6321                         phc.assign_projid = true;
6322
6323                         break;
6324                 case '0':
6325                         phc.newline = false;
6326                         break;
6327                 default:
6328                         fprintf(stderr, "%s: invalid option '%c'\n",
6329                                 progname, optopt);
6330                         return CMD_HELP;
6331                 }
6332         }
6333
6334         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
6335                 op = LFS_PROJECT_SET;
6336                 phc.set_projid = true;
6337         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
6338                 phc.set_projid = true;
6339         }
6340
6341         switch (op) {
6342         case LFS_PROJECT_CHECK:
6343                 if (phc.keep_projid) {
6344                         fprintf(stderr,
6345                                 "%s: '-k' is useless together with '-c'\n",
6346                                 progname);
6347                         return CMD_HELP;
6348                 }
6349                 break;
6350         case LFS_PROJECT_CLEAR:
6351                 if (!phc.newline) {
6352                         fprintf(stderr,
6353                                 "%s: '-0' is useless together with '-C'\n",
6354                                 progname);
6355                         return CMD_HELP;
6356                 }
6357                 if (phc.assign_projid) {
6358                         fprintf(stderr,
6359                                 "%s: '-p' is useless together with '-C'\n",
6360                                 progname);
6361                         return CMD_HELP;
6362                 }
6363                 break;
6364         case LFS_PROJECT_SET:
6365                 if (!phc.newline) {
6366                         fprintf(stderr,
6367                                 "%s: '-0' is useless together with '-s'\n",
6368                                 progname);
6369                         return CMD_HELP;
6370                 }
6371                 if (phc.keep_projid) {
6372                         fprintf(stderr,
6373                                 "%s: '-k' is useless together with '-s'\n",
6374                                 progname);
6375                         return CMD_HELP;
6376                 }
6377                 break;
6378         default:
6379                 if (!phc.newline) {
6380                         fprintf(stderr,
6381                                 "%s: '-0' is useless for list operations\n",
6382                                 progname);
6383                         return CMD_HELP;
6384                 }
6385                 break;
6386         }
6387
6388         argv += optind;
6389         argc -= optind;
6390         if (argc == 0) {
6391                 fprintf(stderr, "%s: missing file or directory target(s)\n",
6392                         progname);
6393                 return CMD_HELP;
6394         }
6395
6396         for (i = 0; i < argc; i++) {
6397                 switch (op) {
6398                 case LFS_PROJECT_CHECK:
6399                         err = lfs_project_check(argv[i], &phc);
6400                         break;
6401                 case LFS_PROJECT_LIST:
6402                         err = lfs_project_list(argv[i], &phc);
6403                         break;
6404                 case LFS_PROJECT_CLEAR:
6405                         err = lfs_project_clear(argv[i], &phc);
6406                         break;
6407                 case LFS_PROJECT_SET:
6408                         err = lfs_project_set(argv[i], &phc);
6409                         break;
6410                 default:
6411                         break;
6412                 }
6413                 if (err && !ret)
6414                         ret = err;
6415         }
6416
6417         return ret;
6418 }
6419
6420 static int lfs_quota(int argc, char **argv)
6421 {
6422         int c;
6423         char *mnt, *name = NULL;
6424         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
6425                                     .qc_type = ALLQUOTA };
6426         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
6427         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
6428         char *endptr;
6429         __u32 valid = QC_GENERAL, idx = 0;
6430         bool human_readable = false;
6431         bool show_default = false;
6432         int qtype;
6433
6434         while ((c = getopt(argc, argv, "gGi:I:o:pPqtuUvh")) != -1) {
6435                 switch (c) {
6436                 case 'U':
6437                         show_default = true;
6438                 case 'u':
6439                         qtype = USRQUOTA;
6440                         goto quota_type;
6441                 case 'G':
6442                         show_default = true;
6443                 case 'g':
6444                         qtype = GRPQUOTA;
6445                         goto quota_type;
6446                 case 'P':
6447                         show_default = true;
6448                 case 'p':
6449                         qtype = PRJQUOTA;
6450 quota_type:
6451                         if (qctl.qc_type != ALLQUOTA) {
6452                                 fprintf(stderr,
6453                                         "%s quota: only one of -u, -g, or -p may be specified\n",
6454                                         progname);
6455                                 return CMD_HELP;
6456                         }
6457                         qctl.qc_type = qtype;
6458                         break;
6459                 case 't':
6460                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
6461                         break;
6462                 case 'o':
6463                         valid = qctl.qc_valid = QC_UUID;
6464                         snprintf(obd_uuid, sizeof(qctl.obd_uuid), "%s", optarg);
6465                         break;
6466                 case 'i':
6467                         valid = qctl.qc_valid = QC_MDTIDX;
6468                         idx = qctl.qc_idx = atoi(optarg);
6469                         if (idx == 0 && *optarg != '0') {
6470                                 fprintf(stderr,
6471                                         "%s quota: invalid MDT index '%s'\n",
6472                                         progname, optarg);
6473                                 return CMD_HELP;
6474                         }
6475                         break;
6476                 case 'I':
6477                         valid = qctl.qc_valid = QC_OSTIDX;
6478                         idx = qctl.qc_idx = atoi(optarg);
6479                         if (idx == 0 && *optarg != '0') {
6480                                 fprintf(stderr,
6481                                         "%s quota: invalid OST index '%s'\n",
6482                                         progname, optarg);
6483                                 return CMD_HELP;
6484                         }
6485                         break;
6486                 case 'v':
6487                         verbose = 1;
6488                         break;
6489                 case 'q':
6490                         quiet = 1;
6491                         break;
6492                 case 'h':
6493                         human_readable = true;
6494                         break;
6495                 default:
6496                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
6497                                 progname, argv[optind - 1]);
6498                         return CMD_HELP;
6499                 }
6500         }
6501
6502         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
6503         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
6504             optind == argc - 1 && !show_default) {
6505
6506                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
6507                 qctl.qc_valid = valid;
6508                 qctl.qc_idx = idx;
6509
6510                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
6511                         qctl.qc_type = qtype;
6512                         if (qtype == USRQUOTA) {
6513                                 qctl.qc_id = geteuid();
6514                                 rc = uid2name(&name, qctl.qc_id);
6515                         } else {
6516                                 qctl.qc_id = getegid();
6517                                 rc = gid2name(&name, qctl.qc_id);
6518                         }
6519                         if (rc)
6520                                 name = "<unknown>";
6521                         mnt = argv[optind];
6522                         rc1 = get_print_quota(mnt, name, &qctl, verbose, quiet,
6523                                               human_readable, show_default);
6524                         if (rc1 && !rc)
6525                                 rc = rc1;
6526                 }
6527                 return rc;
6528         /* lfs quota -u username /path/to/lustre/mount */
6529         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
6530                 /* options should be followed by u/g-name and mntpoint */
6531                 if ((!show_default && optind + 2 != argc) ||
6532                     (show_default && optind + 1 != argc) ||
6533                     qctl.qc_type == ALLQUOTA) {
6534                         fprintf(stderr,
6535                                 "%s quota: name and mount point must be specified\n",
6536                                 progname);
6537                         return CMD_HELP;
6538                 }
6539
6540                 if (!show_default) {
6541                         name = argv[optind++];
6542                         switch (qctl.qc_type) {
6543                         case USRQUOTA:
6544                                 rc = name2uid(&qctl.qc_id, name);
6545                                 break;
6546                         case GRPQUOTA:
6547                                 rc = name2gid(&qctl.qc_id, name);
6548                                 break;
6549                         case PRJQUOTA:
6550                                 rc = name2projid(&qctl.qc_id, name);
6551                                 break;
6552                         default:
6553                                 rc = -ENOTSUP;
6554                                 break;
6555                         }
6556                 } else {
6557                         qctl.qc_valid = QC_GENERAL;
6558                         qctl.qc_cmd = LUSTRE_Q_GETDEFAULT;
6559                         qctl.qc_id = 0;
6560                 }
6561
6562                 if (rc) {
6563                         qctl.qc_id = strtoul(name, &endptr, 10);
6564                         if (*endptr != '\0') {
6565                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
6566                                         progname, name);
6567                                 return CMD_HELP;
6568                         }
6569                 }
6570         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
6571                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
6572                         progname);
6573                 return CMD_HELP;
6574         }
6575
6576         mnt = argv[optind];
6577         rc = get_print_quota(mnt, name, &qctl, verbose, quiet,
6578                              human_readable, show_default);
6579         return rc;
6580 }
6581 #endif /* HAVE_SYS_QUOTA_H! */
6582
6583 static int flushctx_ioctl(char *mp)
6584 {
6585         int fd, rc;
6586
6587         fd = open(mp, O_RDONLY);
6588         if (fd == -1) {
6589                 fprintf(stderr, "flushctx: error open %s: %s\n",
6590                         mp, strerror(errno));
6591                 return -1;
6592         }
6593
6594         rc = ioctl(fd, LL_IOC_FLUSHCTX);
6595         if (rc == -1)
6596                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
6597                         mp, strerror(errno));
6598
6599         close(fd);
6600         return rc;
6601 }
6602
6603 static int lfs_flushctx(int argc, char **argv)
6604 {
6605         int     kdestroy = 0, c;
6606         char    mntdir[PATH_MAX] = {'\0'};
6607         int     index = 0;
6608         int     rc = 0;
6609
6610         while ((c = getopt(argc, argv, "k")) != -1) {
6611                 switch (c) {
6612                 case 'k':
6613                         kdestroy = 1;
6614                         break;
6615                 default:
6616                         fprintf(stderr, "error: %s: option '-%c' "
6617                                         "unrecognized\n", argv[0], c);
6618                         return CMD_HELP;
6619                 }
6620         }
6621
6622         if (kdestroy) {
6623             if ((rc = system("kdestroy > /dev/null")) != 0) {
6624                 rc = WEXITSTATUS(rc);
6625                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
6626             }
6627         }
6628
6629         if (optind >= argc) {
6630                 /* flush for all mounted lustre fs. */
6631                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
6632                         /* Check if we have a mount point */
6633                         if (mntdir[0] == '\0')
6634                                 continue;
6635
6636                         if (flushctx_ioctl(mntdir))
6637                                 rc = -1;
6638
6639                         mntdir[0] = '\0'; /* avoid matching in next loop */
6640                 }
6641         } else {
6642                 /* flush fs as specified */
6643                 while (optind < argc) {
6644                         if (flushctx_ioctl(argv[optind++]))
6645                                 rc = -1;
6646                 }
6647         }
6648         return rc;
6649 }
6650
6651 static int lfs_cp(int argc, char **argv)
6652 {
6653         fprintf(stderr, "remote client copy file(s).\n"
6654                 "obsolete, does not support it anymore.\n");
6655         return 0;
6656 }
6657
6658 static int lfs_ls(int argc, char **argv)
6659 {
6660         fprintf(stderr, "remote client lists directory contents.\n"
6661                 "obsolete, does not support it anymore.\n");
6662         return 0;
6663 }
6664
6665 static int lfs_changelog(int argc, char **argv)
6666 {
6667         void *changelog_priv;
6668         struct changelog_rec *rec;
6669         long long startrec = 0, endrec = 0;
6670         char *mdd;
6671         struct option long_opts[] = {
6672                 { .val = 'f', .name = "follow", .has_arg = no_argument },
6673                 { .name = NULL } };
6674         char short_opts[] = "f";
6675         int rc, follow = 0;
6676
6677         while ((rc = getopt_long(argc, argv, short_opts,
6678                 long_opts, NULL)) != -1) {
6679                 switch (rc) {
6680                 case 'f':
6681                         follow++;
6682                         break;
6683                 default:
6684                         fprintf(stderr,
6685                                 "%s changelog: unrecognized option '%s'\n",
6686                                 progname, argv[optind - 1]);
6687                         return CMD_HELP;
6688                 }
6689         }
6690         if (optind >= argc) {
6691                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
6692                         progname);
6693                 return CMD_HELP;
6694         }
6695
6696         mdd = argv[optind++];
6697         if (argc > optind)
6698                 startrec = strtoll(argv[optind++], NULL, 10);
6699         if (argc > optind)
6700                 endrec = strtoll(argv[optind++], NULL, 10);
6701
6702         rc = llapi_changelog_start(&changelog_priv,
6703                                    CHANGELOG_FLAG_BLOCK |
6704                                    CHANGELOG_FLAG_JOBID |
6705                                    CHANGELOG_FLAG_EXTRA_FLAGS |
6706                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
6707                                    mdd, startrec);
6708         if (rc < 0) {
6709                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
6710                         progname, strerror(errno = -rc));
6711                 return rc;
6712         }
6713
6714         rc = llapi_changelog_set_xflags(changelog_priv,
6715                                         CHANGELOG_EXTRA_FLAG_UIDGID |
6716                                         CHANGELOG_EXTRA_FLAG_NID |
6717                                         CHANGELOG_EXTRA_FLAG_OMODE |
6718                                         CHANGELOG_EXTRA_FLAG_XATTR);
6719         if (rc < 0) {
6720                 fprintf(stderr,
6721                         "%s changelog: cannot set xflags for changelog: %s\n",
6722                         progname, strerror(errno = -rc));
6723                 return rc;
6724         }
6725
6726         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
6727                 time_t secs;
6728                 struct tm ts;
6729
6730                 if (endrec && rec->cr_index > endrec) {
6731                         llapi_changelog_free(&rec);
6732                         break;
6733                 }
6734                 if (rec->cr_index < startrec) {
6735                         llapi_changelog_free(&rec);
6736                         continue;
6737                 }
6738
6739                 secs = rec->cr_time >> 30;
6740                 gmtime_r(&secs, &ts);
6741                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
6742                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
6743                        changelog_type2str(rec->cr_type),
6744                        ts.tm_hour, ts.tm_min, ts.tm_sec,
6745                        (int)(rec->cr_time & ((1 << 30) - 1)),
6746                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
6747                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
6748
6749                 if (rec->cr_flags & CLF_JOBID) {
6750                         struct changelog_ext_jobid *jid =
6751                                 changelog_rec_jobid(rec);
6752
6753                         if (jid->cr_jobid[0] != '\0')
6754                                 printf(" j=%s", jid->cr_jobid);
6755                 }
6756
6757                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
6758                         struct changelog_ext_extra_flags *ef =
6759                                 changelog_rec_extra_flags(rec);
6760
6761                         printf(" ef=0x%llx", ef->cr_extra_flags);
6762
6763                         if (ef->cr_extra_flags & CLFE_UIDGID) {
6764                                 struct changelog_ext_uidgid *uidgid =
6765                                         changelog_rec_uidgid(rec);
6766
6767                                 printf(" u=%llu:%llu",
6768                                        uidgid->cr_uid, uidgid->cr_gid);
6769                         }
6770                         if (ef->cr_extra_flags & CLFE_NID) {
6771                                 struct changelog_ext_nid *nid =
6772                                         changelog_rec_nid(rec);
6773
6774                                 printf(" nid=%s",
6775                                        libcfs_nid2str(nid->cr_nid));
6776                         }
6777
6778                         if (ef->cr_extra_flags & CLFE_OPEN) {
6779                                 struct changelog_ext_openmode *omd =
6780                                         changelog_rec_openmode(rec);
6781                                 char mode[] = "---";
6782
6783                                 /* exec mode must be exclusive */
6784                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
6785                                         mode[2] = 'x';
6786                                 } else {
6787                                         if (omd->cr_openflags & MDS_FMODE_READ)
6788                                                 mode[0] = 'r';
6789                                         if (omd->cr_openflags &
6790                                             (MDS_FMODE_WRITE |
6791                                              MDS_OPEN_TRUNC |
6792                                              MDS_OPEN_APPEND))
6793                                                 mode[1] = 'w';
6794                                 }
6795
6796                                 if (strcmp(mode, "---") != 0)
6797                                         printf(" m=%s", mode);
6798
6799                         }
6800
6801                         if (ef->cr_extra_flags & CLFE_XATTR) {
6802                                 struct changelog_ext_xattr *xattr =
6803                                         changelog_rec_xattr(rec);
6804
6805                                 if (xattr->cr_xattr[0] != '\0')
6806                                         printf(" x=%s", xattr->cr_xattr);
6807                         }
6808                 }
6809
6810                 if (rec->cr_namelen)
6811                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
6812                                rec->cr_namelen, changelog_rec_name(rec));
6813
6814                 if (rec->cr_flags & CLF_RENAME) {
6815                         struct changelog_ext_rename *rnm =
6816                                 changelog_rec_rename(rec);
6817
6818                         if (!fid_is_zero(&rnm->cr_sfid))
6819                                 printf(" s="DFID" sp="DFID" %.*s",
6820                                        PFID(&rnm->cr_sfid),
6821                                        PFID(&rnm->cr_spfid),
6822                                        (int)changelog_rec_snamelen(rec),
6823                                        changelog_rec_sname(rec));
6824                 }
6825                 printf("\n");
6826
6827                 llapi_changelog_free(&rec);
6828         }
6829
6830         llapi_changelog_fini(&changelog_priv);
6831
6832         if (rc < 0)
6833                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
6834                         progname, strerror(errno = -rc));
6835
6836         return (rc == 1 ? 0 : rc);
6837 }
6838
6839 static int lfs_changelog_clear(int argc, char **argv)
6840 {
6841         long long endrec;
6842         int rc;
6843
6844         if (argc != 4)
6845                 return CMD_HELP;
6846
6847         endrec = strtoll(argv[3], NULL, 10);
6848
6849         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
6850
6851         if (rc == -EINVAL)
6852                 fprintf(stderr, "%s: record out of range: %llu\n",
6853                         argv[0], endrec);
6854         else if (rc == -ENOENT)
6855                 fprintf(stderr, "%s: no changelog user: %s\n",
6856                         argv[0], argv[2]);
6857         else if (rc)
6858                 fprintf(stderr, "%s error: %s\n", argv[0],
6859                         strerror(-rc));
6860
6861         if (rc)
6862                 errno = -rc;
6863
6864         return rc;
6865 }
6866
6867 static int lfs_fid2path(int argc, char **argv)
6868 {
6869         struct option long_opts[] = {
6870                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
6871                 { .val = 'l',   .name = "link", .has_arg = required_argument },
6872                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
6873                 { .name = NULL } };
6874         char  short_opts[] = "cl:r:";
6875         char *device, *fid, *path;
6876         long long recno = -1;
6877         int linkno = -1;
6878         int lnktmp;
6879         int printcur = 0;
6880         int rc = 0;
6881         char *endptr = NULL;
6882
6883         while ((rc = getopt_long(argc, argv, short_opts,
6884                 long_opts, NULL)) != -1) {
6885                 switch (rc) {
6886                 case 'c':
6887                         printcur++;
6888                         break;
6889                 case 'l':
6890                         linkno = strtol(optarg, &endptr, 10);
6891                         if (*endptr != '\0') {
6892                                 fprintf(stderr,
6893                                         "%s fid2path: invalid linkno '%s'\n",
6894                                         progname, optarg);
6895                                 return CMD_HELP;
6896                         }
6897                         break;
6898                 case 'r':
6899                         recno = strtoll(optarg, &endptr, 10);
6900                         if (*endptr != '\0') {
6901                                 fprintf(stderr,
6902                                         "%s fid2path: invalid recno '%s'\n",
6903                                         progname, optarg);
6904                                 return CMD_HELP;
6905                         }
6906                         break;
6907                 default:
6908                         fprintf(stderr,
6909                                 "%s fid2path: unrecognized option '%s'\n",
6910                                 progname, argv[optind - 1]);
6911                         return CMD_HELP;
6912                 }
6913         }
6914
6915         if (argc < 3) {
6916                 fprintf(stderr,
6917                         "%s fid2path: <fsname|rootpath> and <fid>... must be specified\n",
6918                         progname);
6919                 return CMD_HELP;
6920         }
6921
6922         device = argv[optind++];
6923         path = calloc(1, PATH_MAX);
6924         if (path == NULL) {
6925                 rc = -errno;
6926                 fprintf(stderr,
6927                         "%s fid2path: cannot allocate memory for path: %s\n",
6928                         progname, strerror(-rc));
6929                 return rc;
6930         }
6931
6932         rc = 0;
6933         while (optind < argc) {
6934                 fid = argv[optind++];
6935
6936                 lnktmp = (linkno >= 0) ? linkno : 0;
6937                 while (1) {
6938                         int oldtmp = lnktmp;
6939                         long long rectmp = recno;
6940                         int rc2;
6941                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
6942                                              &rectmp, &lnktmp);
6943                         if (rc2 < 0) {
6944                                 fprintf(stderr,
6945                                         "%s fid2path: cannot find '%s': %s\n",
6946                                         progname, fid, strerror(errno = -rc2));
6947                                 if (rc == 0)
6948                                         rc = rc2;
6949                                 break;
6950                         }
6951
6952                         if (printcur)
6953                                 fprintf(stdout, "%lld ", rectmp);
6954                         if (device[0] == '/') {
6955                                 fprintf(stdout, "%s", device);
6956                                 if (device[strlen(device) - 1] != '/')
6957                                         fprintf(stdout, "/");
6958                         } else if (path[0] == '\0') {
6959                                 fprintf(stdout, "/");
6960                         }
6961                         fprintf(stdout, "%s\n", path);
6962
6963                         if (linkno >= 0)
6964                                 /* specified linkno */
6965                                 break;
6966                         if (oldtmp == lnktmp)
6967                                 /* no more links */
6968                                 break;
6969                 }
6970         }
6971
6972         free(path);
6973         return rc;
6974 }
6975
6976 static int lfs_path2fid(int argc, char **argv)
6977 {
6978         struct option long_opts[] = {
6979                 { .val = 'p', .name = "parents", .has_arg = no_argument },
6980                 { .name = NULL } };
6981         char            **path;
6982         const char        short_opts[] = "p";
6983         const char       *sep = "";
6984         struct lu_fid     fid;
6985         int               rc = 0;
6986         bool              show_parents = false;
6987
6988         while ((rc = getopt_long(argc, argv, short_opts,
6989                                  long_opts, NULL)) != -1) {
6990                 switch (rc) {
6991                 case 'p':
6992                         show_parents = true;
6993                         break;
6994                 default:
6995                         fprintf(stderr,
6996                                 "%s path2fid: unrecognized option '%s'\n",
6997                                 progname, argv[optind - 1]);
6998                         return CMD_HELP;
6999                 }
7000         }
7001
7002         if (optind > argc - 1) {
7003                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
7004                         progname);
7005                 return CMD_HELP;
7006         }
7007         else if (optind < argc - 1)
7008                 sep = ": ";
7009
7010         rc = 0;
7011         for (path = argv + optind; *path != NULL; path++) {
7012                 int err = 0;
7013                 if (!show_parents) {
7014                         err = llapi_path2fid(*path, &fid);
7015                         if (!err)
7016                                 printf("%s%s"DFID"\n",
7017                                        *sep != '\0' ? *path : "", sep,
7018                                        PFID(&fid));
7019                 } else {
7020                         char            name[NAME_MAX + 1];
7021                         unsigned int    linkno = 0;
7022
7023                         while ((err = llapi_path2parent(*path, linkno, &fid,
7024                                                 name, sizeof(name))) == 0) {
7025                                 if (*sep != '\0' && linkno == 0)
7026                                         printf("%s%s", *path, sep);
7027
7028                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
7029                                        PFID(&fid), name);
7030                                 linkno++;
7031                         }
7032
7033                         /* err == -ENODATA is end-of-loop */
7034                         if (linkno > 0 && err == -ENODATA) {
7035                                 printf("\n");
7036                                 err = 0;
7037                         }
7038                 }
7039
7040                 if (err) {
7041                         fprintf(stderr,
7042                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
7043                                 progname, show_parents ? "parent " : "", *path,
7044                                 strerror(-err));
7045                         if (rc == 0) {
7046                                 rc = err;
7047                                 errno = -err;
7048                         }
7049                 }
7050         }
7051
7052         return rc;
7053 }
7054
7055 static int lfs_data_version(int argc, char **argv)
7056 {
7057         char *path;
7058         __u64 data_version;
7059         int fd;
7060         int rc;
7061         int c;
7062         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
7063
7064         if (argc < 2) {
7065                 fprintf(stderr, "%s data_version: FILE must be specified\n",
7066                         progname);
7067                 return CMD_HELP;
7068         }
7069
7070         while ((c = getopt(argc, argv, "nrw")) != -1) {
7071                 switch (c) {
7072                 case 'n':
7073                         data_version_flags = 0;
7074                         break;
7075                 case 'r':
7076                         data_version_flags |= LL_DV_RD_FLUSH;
7077                         break;
7078                 case 'w':
7079                         data_version_flags |= LL_DV_WR_FLUSH;
7080                         break;
7081                 default:
7082                         fprintf(stderr,
7083                                 "%s data_version: unrecognized option '%s'\n",
7084                                 progname, argv[optind - 1]);
7085                         return CMD_HELP;
7086                 }
7087         }
7088         if (optind == argc) {
7089                 fprintf(stderr, "%s data_version: FILE must be specified\n",
7090                         progname);
7091                 return CMD_HELP;
7092         }
7093
7094         path = argv[optind];
7095         fd = open(path, O_RDONLY);
7096         if (fd < 0) {
7097                 rc = -errno;
7098                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
7099                         progname, path, strerror(-rc));
7100                 return rc;
7101         }
7102
7103         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
7104         if (rc < 0)
7105                 fprintf(stderr,
7106                         "%s data_version: cannot get version for '%s': %s\n",
7107                         progname, path, strerror(-rc));
7108         else
7109                 printf("%ju" "\n", (uintmax_t)data_version);
7110
7111         close(fd);
7112         return rc;
7113 }
7114
7115 static int lfs_hsm_state(int argc, char **argv)
7116 {
7117         int rc;
7118         int i = 1;
7119         char *path;
7120         struct hsm_user_state hus;
7121
7122         if (argc < 2)
7123                 return CMD_HELP;
7124
7125         do {
7126                 path = argv[i];
7127
7128                 rc = llapi_hsm_state_get(path, &hus);
7129                 if (rc) {
7130                         fprintf(stderr, "can't get hsm state for %s: %s\n",
7131                                 path, strerror(errno = -rc));
7132                         return rc;
7133                 }
7134
7135                 /* Display path name and status flags */
7136                 printf("%s: (0x%08x)", path, hus.hus_states);
7137
7138                 if (hus.hus_states & HS_RELEASED)
7139                         printf(" released");
7140                 if (hus.hus_states & HS_EXISTS)
7141                         printf(" exists");
7142                 if (hus.hus_states & HS_DIRTY)
7143                         printf(" dirty");
7144                 if (hus.hus_states & HS_ARCHIVED)
7145                         printf(" archived");
7146                 /* Display user-settable flags */
7147                 if (hus.hus_states & HS_NORELEASE)
7148                         printf(" never_release");
7149                 if (hus.hus_states & HS_NOARCHIVE)
7150                         printf(" never_archive");
7151                 if (hus.hus_states & HS_LOST)
7152                         printf(" lost_from_hsm");
7153
7154                 if (hus.hus_archive_id != 0)
7155                         printf(", archive_id:%d", hus.hus_archive_id);
7156                 printf("\n");
7157
7158         } while (++i < argc);
7159
7160         return 0;
7161 }
7162
7163 #define LFS_HSM_SET   0
7164 #define LFS_HSM_CLEAR 1
7165
7166 /**
7167  * Generic function to set or clear HSM flags.
7168  * Used by hsm_set and hsm_clear.
7169  *
7170  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
7171  */
7172 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
7173 {
7174         struct option long_opts[] = {
7175         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
7176         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
7177         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
7178         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
7179         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
7180         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
7181         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
7182         { .name = NULL } };
7183         char short_opts[] = "lraAdei:";
7184         __u64 mask = 0;
7185         int c, rc;
7186         char *path;
7187         __u32 archive_id = 0;
7188         char *end = NULL;
7189
7190         if (argc < 3)
7191                 return CMD_HELP;
7192
7193         while ((c = getopt_long(argc, argv, short_opts,
7194                                 long_opts, NULL)) != -1) {
7195                 switch (c) {
7196                 case 'l':
7197                         mask |= HS_LOST;
7198                         break;
7199                 case 'a':
7200                         mask |= HS_NOARCHIVE;
7201                         break;
7202                 case 'A':
7203                         mask |= HS_ARCHIVED;
7204                         break;
7205                 case 'r':
7206                         mask |= HS_NORELEASE;
7207                         break;
7208                 case 'd':
7209                         mask |= HS_DIRTY;
7210                         break;
7211                 case 'e':
7212                         mask |= HS_EXISTS;
7213                         break;
7214                 case 'i':
7215                         archive_id = strtol(optarg, &end, 10);
7216                         if (*end != '\0') {
7217                                 fprintf(stderr, "invalid archive_id: '%s'\n",
7218                                         end);
7219                                 return CMD_HELP;
7220                         }
7221                         break;
7222                 case '?':
7223                         return CMD_HELP;
7224                 default:
7225                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7226                                 argv[0], argv[optind - 1]);
7227                         return CMD_HELP;
7228                 }
7229         }
7230
7231         /* User should have specified a flag */
7232         if (mask == 0)
7233                 return CMD_HELP;
7234
7235         while (optind < argc) {
7236
7237                 path = argv[optind];
7238
7239                 /* If mode == 0, this means we apply the mask. */
7240                 if (mode == LFS_HSM_SET)
7241                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
7242                 else
7243                         rc = llapi_hsm_state_set(path, 0, mask, 0);
7244
7245                 if (rc != 0) {
7246                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
7247                                 path, strerror(errno = -rc));
7248                         return rc;
7249                 }
7250                 optind++;
7251         }
7252
7253         return 0;
7254 }
7255
7256 static int lfs_hsm_action(int argc, char **argv)
7257 {
7258         int                              rc;
7259         int                              i = 1;
7260         char                            *path;
7261         struct hsm_current_action        hca;
7262         struct hsm_extent                he;
7263         enum hsm_user_action             hua;
7264         enum hsm_progress_states         hps;
7265
7266         if (argc < 2)
7267                 return CMD_HELP;
7268
7269         do {
7270                 path = argv[i];
7271
7272                 rc = llapi_hsm_current_action(path, &hca);
7273                 if (rc) {
7274                         fprintf(stderr, "can't get hsm action for %s: %s\n",
7275                                 path, strerror(errno = -rc));
7276                         return rc;
7277                 }
7278                 he = hca.hca_location;
7279                 hua = hca.hca_action;
7280                 hps = hca.hca_state;
7281
7282                 printf("%s: %s", path, hsm_user_action2name(hua));
7283
7284                 /* Skip file without action */
7285                 if (hca.hca_action == HUA_NONE) {
7286                         printf("\n");
7287                         continue;
7288                 }
7289
7290                 printf(" %s ", hsm_progress_state2name(hps));
7291
7292                 if ((hps == HPS_RUNNING) &&
7293                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
7294                         printf("(%llu bytes moved)\n",
7295                                (unsigned long long)he.length);
7296                 else if ((he.offset + he.length) == LUSTRE_EOF)
7297                         printf("(from %llu to EOF)\n",
7298                                (unsigned long long)he.offset);
7299                 else
7300                         printf("(from %llu to %llu)\n",
7301                                (unsigned long long)he.offset,
7302                                (unsigned long long)(he.offset + he.length));
7303
7304         } while (++i < argc);
7305
7306         return 0;
7307 }
7308
7309 static int lfs_hsm_set(int argc, char **argv)
7310 {
7311         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
7312 }
7313
7314 static int lfs_hsm_clear(int argc, char **argv)
7315 {
7316         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
7317 }
7318
7319 /**
7320  * Check file state and return its fid, to be used by lfs_hsm_request().
7321  *
7322  * \param[in]     file      Path to file to check
7323  * \param[in,out] fid       Pointer to allocated lu_fid struct.
7324  * \param[in,out] last_dev  Pointer to last device id used.
7325  *
7326  * \return 0 on success.
7327  */
7328 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
7329                                 dev_t *last_dev)
7330 {
7331         struct stat     st;
7332         int             rc;
7333
7334         rc = lstat(file, &st);
7335         if (rc) {
7336                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
7337                 return -errno;
7338         }
7339         /* Checking for regular file as archiving as posix copytool
7340          * rejects archiving files other than regular files
7341          */
7342         if (!S_ISREG(st.st_mode)) {
7343                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
7344                 return CMD_HELP;
7345         }
7346         /* A request should be ... */
7347         if (*last_dev != st.st_dev && *last_dev != 0) {
7348                 fprintf(stderr, "All files should be "
7349                         "on the same filesystem: %s\n", file);
7350                 return -EINVAL;
7351         }
7352         *last_dev = st.st_dev;
7353
7354         rc = llapi_path2fid(file, fid);
7355         if (rc) {
7356                 fprintf(stderr, "Cannot read FID of %s: %s\n",
7357                         file, strerror(-rc));
7358                 return rc;
7359         }
7360         return 0;
7361 }
7362
7363 /* Fill an HSM HUR item with a given file name.
7364  *
7365  * If mntpath is set, then the filename is actually a FID, and no
7366  * lookup on the filesystem will be performed.
7367  *
7368  * \param[in]  hur         the user request to fill
7369  * \param[in]  idx         index of the item inside the HUR to fill
7370  * \param[in]  mntpath     mountpoint of Lustre
7371  * \param[in]  fname       filename (if mtnpath is NULL)
7372  *                         or FID (if mntpath is set)
7373  * \param[in]  last_dev    pointer to last device id used
7374  *
7375  * \retval 0 on success
7376  * \retval CMD_HELP or a negative errno on error
7377  */
7378 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
7379                          const char *mntpath, const char *fname,
7380                          dev_t *last_dev)
7381 {
7382         struct hsm_user_item *hui = &hur->hur_user_item[idx];
7383         int rc;
7384
7385         hui->hui_extent.length = -1;
7386
7387         if (mntpath != NULL) {
7388                 if (*fname == '[')
7389                         fname++;
7390                 rc = sscanf(fname, SFID, RFID(&hui->hui_fid));
7391                 if (rc == 3) {
7392                         rc = 0;
7393                 } else {
7394                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
7395                                 fname);
7396                         rc = -EINVAL;
7397                 }
7398         } else {
7399                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
7400         }
7401
7402         if (rc == 0)
7403                 hur->hur_request.hr_itemcount++;
7404
7405         return rc;
7406 }
7407
7408 static int lfs_hsm_request(int argc, char **argv, int action)
7409 {
7410         struct option long_opts[] = {
7411         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
7412         { .val = 'D',   .name = "data",         .has_arg = required_argument },
7413         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
7414         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
7415         { .name = NULL } };
7416         dev_t                    last_dev = 0;
7417         char                     short_opts[] = "l:D:a:m:";
7418         struct hsm_user_request *hur, *oldhur;
7419         int                      c, i;
7420         size_t                   len;
7421         int                      nbfile;
7422         char                    *line = NULL;
7423         char                    *filelist = NULL;
7424         char                     fullpath[PATH_MAX];
7425         char                    *opaque = NULL;
7426         int                      opaque_len = 0;
7427         int                      archive_id = 0;
7428         FILE                    *fp;
7429         int                      nbfile_alloc = 0;
7430         char                    *some_file = NULL;
7431         char                    *mntpath = NULL;
7432         int                      rc;
7433
7434         if (argc < 2)
7435                 return CMD_HELP;
7436
7437         while ((c = getopt_long(argc, argv, short_opts,
7438                                 long_opts, NULL)) != -1) {
7439                 switch (c) {
7440                 case 'l':
7441                         filelist = optarg;
7442                         break;
7443                 case 'D':
7444                         opaque = optarg;
7445                         break;
7446                 case 'a':
7447                         if (action != HUA_ARCHIVE &&
7448                             action != HUA_REMOVE) {
7449                                 fprintf(stderr,
7450                                         "error: -a is supported only "
7451                                         "when archiving or removing\n");
7452                                 return CMD_HELP;
7453                         }
7454                         archive_id = atoi(optarg);
7455                         break;
7456                 case 'm':
7457                         if (some_file == NULL) {
7458                                 mntpath = optarg;
7459                                 some_file = strdup(optarg);
7460                         }
7461                         break;
7462                 case '?':
7463                         return CMD_HELP;
7464                 default:
7465                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7466                                 argv[0], argv[optind - 1]);
7467                         return CMD_HELP;
7468                 }
7469         }
7470
7471         /* All remaining args are files, so we have at least nbfile */
7472         nbfile = argc - optind;
7473
7474         if ((nbfile == 0) && (filelist == NULL))
7475                 return CMD_HELP;
7476
7477         if (opaque != NULL)
7478                 opaque_len = strlen(opaque);
7479
7480         /* Alloc the request structure with enough place to store all files
7481          * from command line. */
7482         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
7483         if (hur == NULL) {
7484                 fprintf(stderr, "Cannot create the request: %s\n",
7485                         strerror(errno));
7486                 return errno;
7487         }
7488         nbfile_alloc = nbfile;
7489
7490         hur->hur_request.hr_action = action;
7491         hur->hur_request.hr_archive_id = archive_id;
7492         hur->hur_request.hr_flags = 0;
7493
7494         /* All remaining args are files, add them */
7495         if (nbfile != 0 && some_file == NULL)
7496                 some_file = strdup(argv[optind]);
7497
7498         for (i = 0; i < nbfile; i++) {
7499                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
7500                                    &last_dev);
7501                 if (rc)
7502                         goto out_free;
7503         }
7504
7505         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
7506
7507         /* If a filelist was specified, read the filelist from it. */
7508         if (filelist != NULL) {
7509                 fp = fopen(filelist, "r");
7510                 if (fp == NULL) {
7511                         fprintf(stderr, "Cannot read the file list %s: %s\n",
7512                                 filelist, strerror(errno));
7513                         rc = -errno;
7514                         goto out_free;
7515                 }
7516
7517                 while ((rc = getline(&line, &len, fp)) != -1) {
7518                         /* If allocated buffer was too small, get something
7519                          * larger */
7520                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
7521                                 ssize_t size;
7522
7523                                 nbfile_alloc = nbfile_alloc * 2 + 1;
7524                                 oldhur = hur;
7525                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
7526                                                                    opaque_len);
7527                                 if (hur == NULL) {
7528                                         fprintf(stderr, "hsm: cannot allocate "
7529                                                 "the request: %s\n",
7530                                                 strerror(errno));
7531                                         hur = oldhur;
7532                                         rc = -errno;
7533                                         fclose(fp);
7534                                         goto out_free;
7535                                 }
7536                                 size = hur_len(oldhur);
7537                                 if (size < 0) {
7538                                         fprintf(stderr, "hsm: cannot allocate "
7539                                                 "%u files + %u bytes data\n",
7540                                             oldhur->hur_request.hr_itemcount,
7541                                             oldhur->hur_request.hr_data_len);
7542                                         free(hur);
7543                                         hur = oldhur;
7544                                         rc = -E2BIG;
7545                                         fclose(fp);
7546                                         goto out_free;
7547                                 }
7548                                 memcpy(hur, oldhur, size);
7549                                 free(oldhur);
7550                         }
7551
7552                         /* Chop CR */
7553                         if (line[strlen(line) - 1] == '\n')
7554                                 line[strlen(line) - 1] = '\0';
7555
7556                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
7557                                            mntpath, line, &last_dev);
7558                         if (rc) {
7559                                 fclose(fp);
7560                                 goto out_free;
7561                         }
7562
7563                         if (some_file == NULL) {
7564                                 some_file = line;
7565                                 line = NULL;
7566                         }
7567                 }
7568
7569                 rc = fclose(fp);
7570                 free(line);
7571         }
7572
7573         /* If a --data was used, add it to the request */
7574         hur->hur_request.hr_data_len = opaque_len;
7575         if (opaque != NULL)
7576                 memcpy(hur_data(hur), opaque, opaque_len);
7577
7578         /* Send the HSM request */
7579         if (realpath(some_file, fullpath) == NULL) {
7580                 fprintf(stderr, "Could not find path '%s': %s\n",
7581                         some_file, strerror(errno));
7582         }
7583         rc = llapi_hsm_request(fullpath, hur);
7584         if (rc) {
7585                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
7586                         some_file, strerror(-rc));
7587                 goto out_free;
7588         }
7589
7590 out_free:
7591         free(some_file);
7592         free(hur);
7593         return rc;
7594 }
7595
7596 static int lfs_hsm_archive(int argc, char **argv)
7597 {
7598         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
7599 }
7600
7601 static int lfs_hsm_restore(int argc, char **argv)
7602 {
7603         return lfs_hsm_request(argc, argv, HUA_RESTORE);
7604 }
7605
7606 static int lfs_hsm_release(int argc, char **argv)
7607 {
7608         return lfs_hsm_request(argc, argv, HUA_RELEASE);
7609 }
7610
7611 static int lfs_hsm_remove(int argc, char **argv)
7612 {
7613         return lfs_hsm_request(argc, argv, HUA_REMOVE);
7614 }
7615
7616 static int lfs_hsm_cancel(int argc, char **argv)
7617 {
7618         return lfs_hsm_request(argc, argv, HUA_CANCEL);
7619 }
7620
7621 static int lfs_swap_layouts(int argc, char **argv)
7622 {
7623         if (argc != 3)
7624                 return CMD_HELP;
7625
7626         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
7627                                   SWAP_LAYOUTS_KEEP_MTIME |
7628                                   SWAP_LAYOUTS_KEEP_ATIME);
7629 }
7630
7631 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
7632
7633 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
7634
7635 int lfs_get_mode(const char *string)
7636 {
7637         enum lock_mode_user mode;
7638
7639         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
7640                 if (lock_mode_names[mode] == NULL)
7641                         continue;
7642                 if (strcmp(string, lock_mode_names[mode]) == 0)
7643                         return mode;
7644         }
7645
7646         return -EINVAL;
7647 }
7648
7649 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
7650 {
7651         enum lu_ladvise_type advice;
7652
7653         for (advice = 0;
7654              advice < ARRAY_SIZE(ladvise_names); advice++) {
7655                 if (ladvise_names[advice] == NULL)
7656                         continue;
7657                 if (strcmp(string, ladvise_names[advice]) == 0)
7658                         return advice;
7659         }
7660
7661         return LU_LADVISE_INVALID;
7662 }
7663
7664 static int lfs_ladvise(int argc, char **argv)
7665 {
7666         struct option long_opts[] = {
7667         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
7668         { .val = 'b',   .name = "background",   .has_arg = no_argument },
7669         { .val = 'e',   .name = "end",          .has_arg = required_argument },
7670         { .val = 'l',   .name = "length",       .has_arg = required_argument },
7671         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
7672         { .val = 's',   .name = "start",        .has_arg = required_argument },
7673         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
7674         { .name = NULL } };
7675         char                     short_opts[] = "a:be:l:m:s:u";
7676         int                      c;
7677         int                      rc = 0;
7678         const char              *path;
7679         int                      fd;
7680         struct llapi_lu_ladvise  advice;
7681         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
7682         unsigned long long       start = 0;
7683         unsigned long long       end = LUSTRE_EOF;
7684         unsigned long long       length = 0;
7685         unsigned long long       size_units;
7686         unsigned long long       flags = 0;
7687         int                      mode = 0;
7688
7689         optind = 0;
7690         while ((c = getopt_long(argc, argv, short_opts,
7691                                 long_opts, NULL)) != -1) {
7692                 switch (c) {
7693                 case 'a':
7694                         advice_type = lfs_get_ladvice(optarg);
7695                         if (advice_type == LU_LADVISE_INVALID) {
7696                                 fprintf(stderr, "%s: invalid advice type "
7697                                         "'%s'\n", argv[0], optarg);
7698                                 fprintf(stderr, "Valid types:");
7699
7700                                 for (advice_type = 0;
7701                                      advice_type < ARRAY_SIZE(ladvise_names);
7702                                      advice_type++) {
7703                                         if (ladvise_names[advice_type] == NULL)
7704                                                 continue;
7705                                         fprintf(stderr, " %s",
7706                                                 ladvise_names[advice_type]);
7707                                 }
7708                                 fprintf(stderr, "\n");
7709
7710                                 return CMD_HELP;
7711                         }
7712                         break;
7713                 case 'b':
7714                         flags |= LF_ASYNC;
7715                         break;
7716                 case 'u':
7717                         flags |= LF_UNSET;
7718                         break;
7719                 case 'e':
7720                         size_units = 1;
7721                         rc = llapi_parse_size(optarg, &end,
7722                                               &size_units, 0);
7723                         if (rc) {
7724                                 fprintf(stderr, "%s: bad end offset '%s'\n",
7725                                         argv[0], optarg);
7726                                 return CMD_HELP;
7727                         }
7728                         break;
7729                 case 's':
7730                         size_units = 1;
7731                         rc = llapi_parse_size(optarg, &start,
7732                                               &size_units, 0);
7733                         if (rc) {
7734                                 fprintf(stderr, "%s: bad start offset "
7735                                         "'%s'\n", argv[0], optarg);
7736                                 return CMD_HELP;
7737                         }
7738                         break;
7739                 case 'l':
7740                         size_units = 1;
7741                         rc = llapi_parse_size(optarg, &length,
7742                                               &size_units, 0);
7743                         if (rc) {
7744                                 fprintf(stderr, "%s: bad length '%s'\n",
7745                                         argv[0], optarg);
7746                                 return CMD_HELP;
7747                         }
7748                         break;
7749                 case 'm':
7750                         mode = lfs_get_mode(optarg);
7751                         if (mode < 0) {
7752                                 fprintf(stderr, "%s: bad mode '%s', valid "
7753                                                  "modes are READ or WRITE\n",
7754                                         argv[0], optarg);
7755                                 return CMD_HELP;
7756                         }
7757                         break;
7758                 case '?':
7759                         return CMD_HELP;
7760                 default:
7761                         fprintf(stderr, "%s: option '%s' unrecognized\n",
7762                                 argv[0], argv[optind - 1]);
7763                         return CMD_HELP;
7764                 }
7765         }
7766
7767         if (advice_type == LU_LADVISE_INVALID) {
7768                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
7769                 fprintf(stderr, "Valid types:");
7770                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
7771                      advice_type++) {
7772                         if (ladvise_names[advice_type] == NULL)
7773                                 continue;
7774                         fprintf(stderr, " %s", ladvise_names[advice_type]);
7775                 }
7776                 fprintf(stderr, "\n");
7777                 return CMD_HELP;
7778         }
7779
7780         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
7781                 fprintf(stderr, "%s: Lock no expand advice is a per file "
7782                                  "descriptor advice, so when called from lfs, "
7783                                  "it does nothing.\n", argv[0]);
7784                 return CMD_HELP;
7785         }
7786
7787         if (argc <= optind) {
7788                 fprintf(stderr, "%s: please give one or more file names\n",
7789                         argv[0]);
7790                 return CMD_HELP;
7791         }
7792
7793         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
7794                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
7795                         argv[0]);
7796                 return CMD_HELP;
7797         }
7798
7799         if (end == LUSTRE_EOF && length != 0)
7800                 end = start + length;
7801
7802         if (end <= start) {
7803                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
7804                         argv[0], start, end);
7805                 return CMD_HELP;
7806         }
7807
7808         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
7809                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
7810                         argv[0]);
7811                 return CMD_HELP;
7812         }
7813
7814         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
7815                 fprintf(stderr, "%s: mode is required with lockahead\n",
7816                         argv[0]);
7817                 return CMD_HELP;
7818         }
7819
7820         while (optind < argc) {
7821                 int rc2;
7822
7823                 path = argv[optind++];
7824
7825                 fd = open(path, O_RDONLY);
7826                 if (fd < 0) {
7827                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
7828                                 argv[0], path, strerror(errno));
7829                         rc2 = -errno;
7830                         goto next;
7831                 }
7832
7833                 advice.lla_start = start;
7834                 advice.lla_end = end;
7835                 advice.lla_advice = advice_type;
7836                 advice.lla_value1 = 0;
7837                 advice.lla_value2 = 0;
7838                 advice.lla_value3 = 0;
7839                 advice.lla_value4 = 0;
7840                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
7841                         advice.lla_lockahead_mode = mode;
7842                         advice.lla_peradvice_flags = flags;
7843                 }
7844
7845                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
7846                 close(fd);
7847                 if (rc2 < 0) {
7848                         fprintf(stderr, "%s: cannot give advice '%s' to file "
7849                                 "'%s': %s\n", argv[0],
7850                                 ladvise_names[advice_type],
7851                                 path, strerror(errno));
7852
7853                         goto next;
7854                 }
7855
7856 next:
7857                 if (rc == 0 && rc2 < 0)
7858                         rc = rc2;
7859         }
7860         return rc;
7861 }
7862
7863 /** The input string contains a comma delimited list of component ids and
7864  * ranges, for example "1,2-4,7".
7865  */
7866 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
7867 {
7868         bool end_of_loop = false;
7869         char *ptr = NULL;
7870         int nr = 0;
7871         int rc;
7872
7873         if (arg == NULL)
7874                 return -EINVAL;
7875
7876         while (!end_of_loop) {
7877                 int start_index;
7878                 int end_index;
7879                 int i;
7880                 char *endptr = NULL;
7881
7882                 rc = -EINVAL;
7883                 ptr = strchrnul(arg, ',');
7884                 end_of_loop = *ptr == '\0';
7885                 *ptr = '\0';
7886
7887                 start_index = strtol(arg, &endptr, 0);
7888                 if (endptr == arg) /* no data at all */
7889                         break;
7890                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
7891                         break;
7892                 if (start_index < 0)
7893                         break;
7894
7895                 end_index = start_index;
7896                 if (*endptr == '-') {
7897                         end_index = strtol(endptr + 1, &endptr, 0);
7898                         if (*endptr != '\0')
7899                                 break;
7900                         if (end_index < start_index)
7901                                 break;
7902                 }
7903
7904                 for (i = start_index; i <= end_index && size > 0; i++) {
7905                         int j;
7906
7907                         /* remove duplicate */
7908                         for (j = 0; j < nr; j++) {
7909                                 if (ids[j] == i)
7910                                         break;
7911                         }
7912                         if (j == nr) { /* no duplicate */
7913                                 ids[nr++] = i;
7914                                 --size;
7915                         }
7916                 }
7917
7918                 if (size == 0 && i < end_index)
7919                         break;
7920
7921                 *ptr = ',';
7922                 arg = ++ptr;
7923                 rc = 0;
7924         }
7925         if (!end_of_loop && ptr != NULL)
7926                 *ptr = ',';
7927
7928         return rc < 0 ? rc : nr;
7929 }
7930
7931 /**
7932  * struct verify_mirror_id - Mirror id to be verified.
7933  * @mirror_id:   A specified mirror id.
7934  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
7935  */
7936 struct verify_mirror_id {
7937         __u16 mirror_id;
7938         bool is_valid_id;
7939 };
7940
7941 /**
7942  * compare_mirror_ids() - Compare mirror ids.
7943  * @layout: Mirror component list.
7944  * @cbdata: Callback data in verify_mirror_id structure.
7945  *
7946  * This is a callback function called by llapi_layout_comp_iterate()
7947  * to compare the specified mirror id with the one in the current
7948  * component of @layout. If they are the same, then the specified
7949  * mirror id is valid.
7950  *
7951  * Return: a negative error code on failure or
7952  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
7953  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
7954  */
7955 static inline
7956 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
7957 {
7958         struct verify_mirror_id *mirror_id_cbdata =
7959                                  (struct verify_mirror_id *)cbdata;
7960         uint32_t mirror_id;
7961         int rc = 0;
7962
7963         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
7964         if (rc < 0) {
7965                 rc = -errno;
7966                 fprintf(stderr,
7967                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
7968                         progname, strerror(errno));
7969                 return rc;
7970         }
7971
7972         if (mirror_id_cbdata->mirror_id == mirror_id) {
7973                 mirror_id_cbdata->is_valid_id = true;
7974                 return LLAPI_LAYOUT_ITER_STOP;
7975         }
7976
7977         return LLAPI_LAYOUT_ITER_CONT;
7978 }
7979
7980 /**
7981  * verify_mirror_ids() - Verify specified mirror ids.
7982  * @fname:      Mirrored file name.
7983  * @mirror_ids: Specified mirror ids to be verified.
7984  * @ids_nr:     Number of specified mirror ids.
7985  *
7986  * This function verifies that specified @mirror_ids are valid
7987  * in the mirrored file @fname.
7988  *
7989  * Return: 0 on success or a negative error code on failure.
7990  */
7991 static inline
7992 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
7993 {
7994         struct llapi_layout *layout = NULL;
7995         struct verify_mirror_id mirror_id_cbdata = { 0 };
7996         struct stat stbuf;
7997         uint32_t flr_state;
7998         int i;
7999         int fd;
8000         int rc = 0;
8001         int rc2 = 0;
8002
8003         if (ids_nr <= 0)
8004                 return -EINVAL;
8005
8006         if (stat(fname, &stbuf) < 0) {
8007                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8008                         progname, fname, strerror(errno));
8009                 rc = -errno;
8010                 goto error;
8011         }
8012
8013         if (!S_ISREG(stbuf.st_mode)) {
8014                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8015                         progname, fname);
8016                 rc = -EINVAL;
8017                 goto error;
8018         }
8019
8020         fd = open(fname, O_DIRECT | O_RDONLY);
8021         if (fd < 0) {
8022                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8023                         progname, fname, strerror(errno));
8024                 rc = -errno;
8025                 goto error;
8026         }
8027
8028         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
8029         if (rc < 0) {
8030                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
8031                         progname, fname, strerror(errno));
8032                 goto close_fd;
8033         }
8034
8035         layout = llapi_layout_get_by_fd(fd, 0);
8036         if (layout == NULL) {
8037                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8038                         progname, fname, strerror(errno));
8039                 rc = -errno;
8040                 llapi_lease_release(fd);
8041                 goto close_fd;
8042         }
8043
8044         rc = llapi_layout_flags_get(layout, &flr_state);
8045         if (rc < 0) {
8046                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8047                         progname, fname, strerror(errno));
8048                 rc = -errno;
8049                 goto free_layout;
8050         }
8051
8052         flr_state &= LCM_FL_FLR_MASK;
8053         switch (flr_state) {
8054         case LCM_FL_NONE:
8055                 rc = -EINVAL;
8056                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
8057                         progname, fname, llapi_layout_flags_string(flr_state));
8058                 goto free_layout;
8059         default:
8060                 break;
8061         }
8062
8063         rc2 = 0;
8064         for (i = 0; i < ids_nr; i++) {
8065                 mirror_id_cbdata.mirror_id = mirror_ids[i];
8066                 mirror_id_cbdata.is_valid_id = false;
8067
8068                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
8069                                                &mirror_id_cbdata);
8070                 if (rc < 0) {
8071                         rc = -errno;
8072                         fprintf(stderr,
8073                                 "%s: '%s' failed to verify mirror id: %u.\n",
8074                                 progname, fname, mirror_ids[i]);
8075                         goto free_layout;
8076                 }
8077
8078                 if (!mirror_id_cbdata.is_valid_id) {
8079                         rc2 = -EINVAL;
8080                         fprintf(stderr,
8081                                 "%s: '%s' invalid specified mirror id: %u.\n",
8082                                 progname, fname, mirror_ids[i]);
8083                 }
8084         }
8085         rc = rc2;
8086
8087 free_layout:
8088         llapi_layout_free(layout);
8089         llapi_lease_release(fd);
8090 close_fd:
8091         close(fd);
8092 error:
8093         return rc;
8094 }
8095
8096 static inline
8097 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
8098                            __u16 *mirror_ids, int ids_nr)
8099 {
8100         struct llapi_resync_comp comp_array[1024] = { { 0 } };
8101         struct llapi_layout *layout;
8102         struct stat stbuf;
8103         uint32_t flr_state;
8104         uint64_t start;
8105         uint64_t end;
8106         int comp_size = 0;
8107         int idx;
8108         int fd;
8109         int rc;
8110
8111         if (stat(fname, &stbuf) < 0) {
8112                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8113                         progname, fname, strerror(errno));
8114                 rc = -errno;
8115                 goto error;
8116         }
8117         if (!S_ISREG(stbuf.st_mode)) {
8118                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8119                         progname, fname);
8120                 rc = -EINVAL;
8121                 goto error;
8122         }
8123
8124         fd = open(fname, O_DIRECT | O_RDWR);
8125         if (fd < 0) {
8126                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8127                         progname, fname, strerror(errno));
8128                 rc = -errno;
8129                 goto error;
8130         }
8131
8132         layout = llapi_layout_get_by_fd(fd, 0);
8133         if (layout == NULL) {
8134                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8135                         progname, fname, strerror(errno));
8136                 rc = -errno;
8137                 goto close_fd;
8138         }
8139
8140         rc = llapi_layout_flags_get(layout, &flr_state);
8141         if (rc) {
8142                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8143                         progname, fname, strerror(errno));
8144                 rc = -errno;
8145                 goto free_layout;
8146         }
8147
8148         flr_state &= LCM_FL_FLR_MASK;
8149         if (flr_state == LCM_FL_NONE) {
8150                 rc = -EINVAL;
8151                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
8152                         progname, fname);
8153                 goto free_layout;
8154         }
8155
8156         /* get stale component info */
8157         comp_size = llapi_mirror_find_stale(layout, comp_array,
8158                                             ARRAY_SIZE(comp_array),
8159                                             mirror_ids, ids_nr);
8160         if (comp_size <= 0) {
8161                 rc = comp_size;
8162                 goto free_layout;
8163         }
8164
8165         ioc->lil_mode = LL_LEASE_WRLCK;
8166         ioc->lil_flags = LL_LEASE_RESYNC;
8167         rc = llapi_lease_set(fd, ioc);
8168         if (rc < 0) {
8169                 if (rc == -EALREADY)
8170                         rc = 0;
8171                 else
8172                         fprintf(stderr,
8173                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
8174                                 progname, fname, strerror(errno));
8175                 goto free_layout;
8176         }
8177
8178         /* get the read range [start, end) */
8179         start = comp_array[0].lrc_start;
8180         end = comp_array[0].lrc_end;
8181         for (idx = 1; idx < comp_size; idx++) {
8182                 if (comp_array[idx].lrc_start < start)
8183                         start = comp_array[idx].lrc_start;
8184                 if (end < comp_array[idx].lrc_end)
8185                         end = comp_array[idx].lrc_end;
8186         }
8187
8188         rc = llapi_lease_check(fd);
8189         if (rc != LL_LEASE_WRLCK) {
8190                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
8191                         progname, fname);
8192                 goto free_layout;
8193         }
8194
8195         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
8196                                       start, end);
8197         if (rc < 0)
8198                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %d.\n",
8199                         progname, fname, rc);
8200
8201         /* prepare ioc for lease put */
8202         ioc->lil_mode = LL_LEASE_UNLCK;
8203         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
8204         ioc->lil_count = 0;
8205         for (idx = 0; idx < comp_size; idx++) {
8206                 if (comp_array[idx].lrc_synced) {
8207                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
8208                         ioc->lil_count++;
8209                 }
8210         }
8211
8212         rc = llapi_lease_set(fd, ioc);
8213         if (rc <= 0) {
8214                 if (rc == 0) /* lost lease lock */
8215                         rc = -EBUSY;
8216                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
8217                         progname, fname, strerror(errno));
8218                 goto free_layout;
8219         }
8220         /**
8221          * llapi_lease_set returns lease mode when it request to unlock
8222          * the lease lock
8223          */
8224         rc = 0;
8225
8226 free_layout:
8227         llapi_layout_free(layout);
8228 close_fd:
8229         close(fd);
8230 error:
8231         return rc;
8232 }
8233
8234 static inline int lfs_mirror_resync(int argc, char **argv)
8235 {
8236         struct ll_ioc_lease *ioc = NULL;
8237         __u16 mirror_ids[128] = { 0 };
8238         int ids_nr = 0;
8239         int c;
8240         int rc = 0;
8241
8242         struct option long_opts[] = {
8243         { .val = 'o',   .name = "only",         .has_arg = required_argument },
8244         { .name = NULL } };
8245
8246         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
8247                 switch (c) {
8248                 case 'o':
8249                         rc = parse_mirror_ids(mirror_ids,
8250                                         sizeof(mirror_ids) / sizeof(__u16),
8251                                         optarg);
8252                         if (rc < 0) {
8253                                 fprintf(stderr,
8254                                         "%s: bad mirror ids '%s'.\n",
8255                                         argv[0], optarg);
8256                                 goto error;
8257                         }
8258                         ids_nr = rc;
8259                         break;
8260                 default:
8261                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
8262                                 argv[0], argv[optind - 1]);
8263                         rc = -EINVAL;
8264                         goto error;
8265                 }
8266         }
8267
8268         if (argc == optind) {
8269                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
8270                 rc = CMD_HELP;
8271                 goto error;
8272         }
8273
8274         if (ids_nr > 0 && argc > optind + 1) {
8275                 fprintf(stderr,
8276                     "%s: option '--only' cannot be used upon multiple files.\n",
8277                         argv[0]);
8278                 rc = CMD_HELP;
8279                 goto error;
8280
8281         }
8282
8283         if (ids_nr > 0) {
8284                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
8285                 if (rc < 0)
8286                         goto error;
8287         }
8288
8289         /* set the lease on the file */
8290         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
8291         if (ioc == NULL) {
8292                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
8293                         argv[0], strerror(errno));
8294                 rc = -errno;
8295                 goto error;
8296         }
8297
8298         for (; optind < argc; optind++) {
8299                 rc = lfs_mirror_resync_file(argv[optind], ioc,
8300                                             mirror_ids, ids_nr);
8301                 /* ignore previous file's error, continue with next file */
8302
8303                 /* reset ioc */
8304                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
8305         }
8306
8307         free(ioc);
8308 error:
8309         return rc;
8310 }
8311
8312 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
8313 {
8314         struct llapi_layout *layout;
8315         int rc;
8316
8317         layout = llapi_layout_get_by_fd(fd, 0);
8318         if (layout == NULL) {
8319                 fprintf(stderr, "could not get layout.\n");
8320                 return  -EINVAL;
8321         }
8322
8323         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
8324         if (rc < 0) {
8325                 fprintf(stderr, "failed to iterate layout\n");
8326                 llapi_layout_free(layout);
8327
8328                 return rc;
8329         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
8330                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
8331                 llapi_layout_free(layout);
8332
8333                 return -EINVAL;
8334         }
8335         llapi_layout_free(layout);
8336
8337         return 0;
8338 }
8339
8340 /**
8341  * Check whether two files are the same file
8342  * \retval      0  same file
8343  * \retval      1  not the same file
8344  * \retval      <0 error code
8345  */
8346 static inline int check_same_file(const char *f1, const char *f2)
8347 {
8348         struct stat stbuf1;
8349         struct stat stbuf2;
8350
8351         if (stat(f1, &stbuf1) < 0) {
8352                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
8353                         progname, f1, strerror(errno));
8354                 return -errno;
8355         }
8356
8357         if (stat(f2, &stbuf2) < 0) {
8358                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
8359                         progname, f2, strerror(errno));
8360                 return -errno;
8361         }
8362
8363         if (stbuf1.st_rdev == stbuf2.st_rdev &&
8364             stbuf1.st_ino == stbuf2.st_ino)
8365                 return 0;
8366
8367         return 1;
8368 }
8369
8370 static inline int lfs_mirror_read(int argc, char **argv)
8371 {
8372         int rc = CMD_HELP;
8373         __u16 mirror_id = 0;
8374         const char *outfile = NULL;
8375         char *fname;
8376         int fd = 0;
8377         int outfd;
8378         int c;
8379         void *buf;
8380         const size_t buflen = 4 << 20;
8381         off_t pos;
8382         struct option long_opts[] = {
8383         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
8384         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
8385         { .name = NULL } };
8386
8387         while ((c = getopt_long(argc, argv, "N:o:", long_opts, NULL)) >= 0) {
8388                 char *end;
8389
8390                 switch (c) {
8391                 case 'N':
8392                         mirror_id = strtoul(optarg, &end, 0);
8393                         if (*end != '\0' || mirror_id == 0) {
8394                                 fprintf(stderr,
8395                                         "%s %s: invalid mirror ID '%s'\n",
8396                                         progname, argv[0], optarg);
8397                                 return rc;
8398                         }
8399                         break;
8400                 case 'o':
8401                         outfile = optarg;
8402                         break;
8403                 default:
8404                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
8405                                 progname, argv[optind - 1]);
8406                         return -EINVAL;
8407                 }
8408         }
8409
8410         if (argc == optind) {
8411                 fprintf(stderr, "%s %s: no mirrored file provided\n",
8412                         progname, argv[0]);
8413                 return rc;
8414         } else if (argc > optind + 1) {
8415                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
8416                 return rc;
8417         }
8418
8419         if (mirror_id == 0) {
8420                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
8421                         progname, argv[0]);
8422                 return rc;
8423         }
8424
8425         /* open mirror file */
8426         fname = argv[optind];
8427
8428         if (outfile) {
8429                 rc = check_same_file(fname, outfile);
8430                 if (rc == 0) {
8431                         fprintf(stderr,
8432                         "%s %s: output file cannot be the mirrored file\n",
8433                                 progname, argv[0]);
8434                         return -EINVAL;
8435                 }
8436                 if (rc < 0)
8437                         return rc;
8438         }
8439
8440         fd = open(fname, O_DIRECT | O_RDONLY);
8441         if (fd < 0) {
8442                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
8443                         progname, argv[0], fname, strerror(errno));
8444                 return rc;
8445         }
8446
8447         /* verify mirror id */
8448         rc = verify_mirror_id_by_fd(fd, mirror_id);
8449         if (rc) {
8450                 fprintf(stderr,
8451                         "%s %s: cannot find mirror with ID %u in '%s'\n",
8452                         progname, argv[0], mirror_id, fname);
8453                 goto close_fd;
8454         }
8455
8456         /* open output file */
8457         if (outfile) {
8458                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
8459                 if (outfd < 0) {
8460                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
8461                                 progname, argv[0], outfile, strerror(errno));
8462                         rc = -errno;
8463                         goto close_fd;
8464                 }
8465         } else {
8466                 outfd = STDOUT_FILENO;
8467         }
8468
8469         /* allocate buffer */
8470         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
8471         if (rc) {
8472                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
8473                                 progname, argv[0], rc);
8474                 goto close_outfd;
8475         }
8476
8477         pos = 0;
8478         while (1) {
8479                 ssize_t bytes_read;
8480                 ssize_t written = 0;
8481
8482                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
8483                 if (bytes_read < 0) {
8484                         rc = bytes_read;
8485                         fprintf(stderr,
8486                                 "%s %s: fail to read data from mirror %u: %s\n",
8487                                 progname, argv[0], mirror_id, strerror(-rc));
8488                         goto free_buf;
8489                 }
8490
8491                 /* EOF reached */
8492                 if (bytes_read == 0)
8493                         break;
8494
8495                 while (written < bytes_read) {
8496                         ssize_t written2;
8497
8498                         written2 = write(outfd, buf + written,
8499                                          bytes_read - written);
8500                         if (written2 < 0) {
8501                                 fprintf(stderr,
8502                                         "%s %s: fail to write %s: %s\n",
8503                                         progname, argv[0], outfile ? : "STDOUT",
8504                                         strerror(errno));
8505                                 rc = -errno;
8506                                 goto free_buf;
8507                         }
8508                         written += written2;
8509                 }
8510
8511                 if (written != bytes_read) {
8512                         fprintf(stderr,
8513                 "%s %s: written %ld bytes does not match with %ld read.\n",
8514                                 progname, argv[0], written, bytes_read);
8515                         rc = -EIO;
8516                         goto free_buf;
8517                 }
8518
8519                 pos += bytes_read;
8520         }
8521
8522         fsync(outfd);
8523         rc = 0;
8524
8525 free_buf:
8526         free(buf);
8527 close_outfd:
8528         if (outfile)
8529                 close(outfd);
8530 close_fd:
8531         close(fd);
8532
8533         return rc;
8534 }
8535
8536 static inline int lfs_mirror_write(int argc, char **argv)
8537 {
8538         int rc = CMD_HELP;
8539         __u16 mirror_id = 0;
8540         const char *inputfile = NULL;
8541         char *fname;
8542         int fd = 0;
8543         int inputfd;
8544         int c;
8545         void *buf;
8546         const size_t buflen = 4 << 20;
8547         off_t pos;
8548         size_t page_size = sysconf(_SC_PAGESIZE);
8549         struct ll_ioc_lease_id ioc;
8550
8551         struct option long_opts[] = {
8552         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
8553         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
8554         { .name = NULL } };
8555
8556         while ((c = getopt_long(argc, argv, "N:i:", long_opts, NULL)) >= 0) {
8557                 char *end;
8558
8559                 switch (c) {
8560                 case 'N':
8561                         mirror_id = strtoul(optarg, &end, 0);
8562                         if (*end != '\0' || mirror_id == 0) {
8563                                 fprintf(stderr,
8564                                         "%s %s: invalid mirror ID '%s'\n",
8565                                         progname, argv[0], optarg);
8566                                 return rc;
8567                         }
8568                         break;
8569                 case 'i':
8570                         inputfile = optarg;
8571                         break;
8572                 default:
8573                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8574                                 progname, argv[optind - 1]);
8575                         return -EINVAL;
8576                 }
8577         }
8578
8579         if (argc == optind) {
8580                 fprintf(stderr, "%s %s: no mirrored file provided\n",
8581                         progname, argv[0]);
8582                 return rc;
8583         } else if (argc > optind + 1) {
8584                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
8585                 return rc;
8586         }
8587
8588         if (mirror_id == 0) {
8589                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
8590                         progname, argv[0]);
8591                 return rc;
8592         }
8593
8594         /* open mirror file */
8595         fname = argv[optind];
8596
8597         if (inputfile) {
8598                 rc = check_same_file(fname, inputfile);
8599                 if (rc == 0) {
8600                         fprintf(stderr,
8601                         "%s %s: input file cannot be the mirrored file\n",
8602                                 progname, argv[0]);
8603                         return -EINVAL;
8604                 }
8605                 if (rc < 0)
8606                         return rc;
8607         }
8608
8609         fd = open(fname, O_DIRECT | O_WRONLY);
8610         if (fd < 0) {
8611                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
8612                         progname, argv[0], fname, strerror(errno));
8613                 return rc;
8614         }
8615
8616         /* verify mirror id */
8617         rc = verify_mirror_id_by_fd(fd, mirror_id);
8618         if (rc) {
8619                 fprintf(stderr,
8620                         "%s %s: cannot find mirror with ID %u in '%s'\n",
8621                         progname, argv[0], mirror_id, fname);
8622                 goto close_fd;
8623         }
8624
8625         /* open input file */
8626         if (inputfile) {
8627                 inputfd = open(inputfile, O_RDONLY, 0644);
8628                 if (inputfd < 0) {
8629                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
8630                                 progname, argv[0], inputfile, strerror(errno));
8631                         rc = -errno;
8632                         goto close_fd;
8633                 }
8634         } else {
8635                 inputfd = STDIN_FILENO;
8636         }
8637
8638         /* allocate buffer */
8639         rc = posix_memalign(&buf, page_size, buflen);
8640         if (rc) {
8641                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
8642                         progname, argv[0], rc);
8643                 goto close_inputfd;
8644         }
8645
8646         /* prepare target mirror components instantiation */
8647         ioc.lil_mode = LL_LEASE_WRLCK;
8648         ioc.lil_flags = LL_LEASE_RESYNC;
8649         ioc.lil_mirror_id = mirror_id;
8650         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
8651         if (rc < 0) {
8652                 fprintf(stderr,
8653                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
8654                         progname, argv[0], fname, strerror(errno));
8655                 goto free_buf;
8656         }
8657
8658         pos = 0;
8659         while (1) {
8660                 ssize_t bytes_read;
8661                 ssize_t written;
8662                 size_t to_write;
8663
8664                 rc = llapi_lease_check(fd);
8665                 if (rc != LL_LEASE_WRLCK) {
8666                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
8667                                 progname, argv[0], fname);
8668                         goto free_buf;
8669                 }
8670
8671                 bytes_read = read(inputfd, buf, buflen);
8672                 if (bytes_read < 0) {
8673                         rc = bytes_read;
8674                         fprintf(stderr,
8675                                 "%s %s: fail to read data from '%s': %s\n",
8676                                 progname, argv[0], inputfile ? : "STDIN",
8677                                 strerror(errno));
8678                         rc = -errno;
8679                         goto free_buf;
8680                 }
8681
8682                 /* EOF reached */
8683                 if (bytes_read == 0)
8684                         break;
8685
8686                 /* round up to page align to make direct IO happy. */
8687                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
8688
8689                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
8690                                              pos);
8691                 if (written < 0) {
8692                         rc = written;
8693                         fprintf(stderr,
8694                               "%s %s: fail to write to mirror %u: %s\n",
8695                                 progname, argv[0], mirror_id,
8696                                 strerror(-rc));
8697                         goto free_buf;
8698                 }
8699
8700                 pos += bytes_read;
8701         }
8702
8703         if (pos & (page_size - 1)) {
8704                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
8705                 if (rc < 0)
8706                         goto free_buf;
8707         }
8708
8709         ioc.lil_mode = LL_LEASE_UNLCK;
8710         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
8711         ioc.lil_count = 0;
8712         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
8713         if (rc <= 0) {
8714                 if (rc == 0)
8715                         rc = -EBUSY;
8716                 fprintf(stderr,
8717                         "%s %s: release lease lock of '%s' failed: %s\n",
8718                         progname, argv[0], fname, strerror(errno));
8719                 goto free_buf;
8720         }
8721
8722         rc = 0;
8723
8724 free_buf:
8725         free(buf);
8726 close_inputfd:
8727         if (inputfile)
8728                 close(inputfd);
8729 close_fd:
8730         close(fd);
8731
8732         return rc;
8733 }
8734
8735 /**
8736  * struct verify_chunk - Mirror chunk to be verified.
8737  * @chunk:        [start, end) of the chunk.
8738  * @mirror_count: Number of mirror ids in @mirror_id array.
8739  * @mirror_id:    Array of valid mirror ids that cover the chunk.
8740  */
8741 struct verify_chunk {
8742         struct lu_extent chunk;
8743         unsigned int mirror_count;
8744         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
8745 };
8746
8747 /**
8748  * print_chunks() - Print chunk information.
8749  * @fname:       Mirrored file name.
8750  * @chunks:      Array of chunks.
8751  * @chunk_count: Number of chunks in @chunks array.
8752  *
8753  * This function prints [start, end) of each chunk in @chunks
8754  * for mirrored file @fname, and also prints the valid mirror ids
8755  * that cover the chunk.
8756  *
8757  * Return: void.
8758  */
8759 static inline
8760 void print_chunks(const char *fname, struct verify_chunk *chunks,
8761                   int chunk_count)
8762 {
8763         int i;
8764         int j;
8765
8766         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
8767         for (i = 0; i < chunk_count; i++) {
8768                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
8769
8770                 if (chunks[i].mirror_count == 0)
8771                         fprintf(stdout, "\t[");
8772                 else {
8773                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
8774                         for (j = 1; j < chunks[i].mirror_count; j++)
8775                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
8776                 }
8777                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
8778         }
8779         fprintf(stdout, "\n");
8780 }
8781
8782 /**
8783  * print_checksums() - Print CRC-32 checksum values.
8784  * @chunk: A chunk and its corresponding valid mirror ids.
8785  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
8786  *
8787  * This function prints CRC-32 checksum values on @chunk for
8788  * each valid mirror that covers it.
8789  *
8790  * Return: void.
8791  */
8792 static inline
8793 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
8794 {
8795         int i;
8796
8797         fprintf(stdout,
8798                 "CRC-32 checksum value for chunk "DEXT":\n",
8799                 PEXT(&chunk->chunk));
8800         for (i = 0; i < chunk->mirror_count; i++)
8801                 fprintf(stdout, "Mirror %u:\t%#lx\n",
8802                         chunk->mirror_id[i], crc[i]);
8803         fprintf(stdout, "\n");
8804 }
8805
8806 /**
8807  * filter_mirror_id() - Filter specified mirror ids.
8808  * @chunks:      Array of chunks.
8809  * @chunk_count: Number of chunks in @chunks array.
8810  * @mirror_ids:  Specified mirror ids to be verified.
8811  * @ids_nr:      Number of specified mirror ids.
8812  *
8813  * This function scans valid mirror ids that cover each chunk in @chunks
8814  * and filters specified mirror ids.
8815  *
8816  * Return: void.
8817  */
8818 static inline
8819 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
8820                       __u16 *mirror_ids, int ids_nr)
8821 {
8822         int i;
8823         int j;
8824         int k;
8825         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
8826         unsigned int valid_count = 0;
8827
8828         for (i = 0; i < chunk_count; i++) {
8829                 if (chunks[i].mirror_count == 0)
8830                         continue;
8831
8832                 valid_count = 0;
8833                 for (j = 0; j < ids_nr; j++) {
8834                         for (k = 0; k < chunks[i].mirror_count; k++) {
8835                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
8836                                         valid_id[valid_count] = mirror_ids[j];
8837                                         valid_count++;
8838                                         break;
8839                                 }
8840                         }
8841                 }
8842
8843                 memcpy(chunks[i].mirror_id, valid_id,
8844                        sizeof(__u16) * valid_count);
8845                 chunks[i].mirror_count = valid_count;
8846         }
8847 }
8848
8849 /**
8850  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
8851  * @layout:      Mirror component list.
8852  * @chunks:      Array of chunks.
8853  * @chunks_size: Array size of @chunks.
8854  *
8855  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
8856  * to find out chunk segments and store them in @chunks array.
8857  *
8858  * The @mirror_id array in each element of @chunks will store the valid
8859  * mirror ids that cover the chunk. If a mirror component covering the
8860  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
8861  * will not be stored into the @mirror_id array, and the chunk for that
8862  * mirror will not be verified.
8863  *
8864  * The @mirror_count in each element of @chunks will store the number of
8865  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
8866  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
8867  * indicates the chunk is valid in only one mirror. In both cases, the
8868  * chunk will not be verified.
8869  *
8870  * Here is an example:
8871  *
8872  *  0      1M     2M     3M     4M           EOF
8873  *  +------+-------------+--------------------+
8874  *  |      |             |      S             |       mirror1
8875  *  +------+------+------+------+-------------+
8876  *  |             |   S  |   S  |             |       mirror2
8877  *  +-------------+------+------+-------------+
8878  *
8879  * prepared @chunks array will contain 5 elements:
8880  * (([0, 1M), [1, 2], 2),
8881  *  ([1M, 2M), [1, 2], 2),
8882  *  ([2M, 3M), [1], 1),
8883  *  ([3M, 4M], [], 0),
8884  *  ([4M, EOF), [2], 1))
8885  *
8886  * Return: the actual array size of @chunks on success
8887  *         or a negative error code on failure.
8888  */
8889 static inline
8890 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
8891                              struct verify_chunk *chunks,
8892                              size_t chunks_size)
8893 {
8894         uint64_t start;
8895         uint64_t end;
8896         uint32_t mirror_id;
8897         uint32_t flags;
8898         int idx = 0;
8899         int i = 0;
8900         int rc = 0;
8901
8902         memset(chunks, 0, sizeof(*chunks) * chunks_size);
8903
8904         while (1) {
8905                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
8906                 if (rc < 0) {
8907                         fprintf(stderr,
8908                                 "%s: move to the first layout component: %s.\n",
8909                                 progname, strerror(errno));
8910                         goto error;
8911                 }
8912
8913                 i = 0;
8914                 rc = 0;
8915                 chunks[idx].chunk.e_end = LUSTRE_EOF;
8916                 while (rc == 0) {
8917                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
8918                         if (rc < 0) {
8919                                 fprintf(stderr,
8920                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
8921                                         progname, strerror(errno));
8922                                 goto error;
8923                         }
8924
8925                         if (start > chunks[idx].chunk.e_start ||
8926                             end <= chunks[idx].chunk.e_start)
8927                                 goto next;
8928
8929                         if (end < chunks[idx].chunk.e_end)
8930                                 chunks[idx].chunk.e_end = end;
8931
8932                         rc = llapi_layout_comp_flags_get(layout, &flags);
8933                         if (rc < 0) {
8934                                 fprintf(stderr,
8935                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
8936                                         progname, strerror(errno));
8937                                 goto error;
8938                         }
8939
8940                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
8941                                 goto next;
8942
8943                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
8944                         if (rc < 0) {
8945                                 fprintf(stderr,
8946                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
8947                                         progname, strerror(errno));
8948                                 goto error;
8949                         }
8950
8951                         chunks[idx].mirror_id[i] = mirror_id;
8952                         i++;
8953                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
8954                                 fprintf(stderr,
8955                                         "%s: mirror_id array is too small.\n",
8956                                         progname);
8957                                 rc = -EINVAL;
8958                                 goto error;
8959                         }
8960
8961                 next:
8962                         rc = llapi_layout_comp_use(layout,
8963                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
8964                         if (rc < 0) {
8965                                 fprintf(stderr,
8966                                         "%s: move to the next layout component: %s.\n",
8967                                         progname, strerror(errno));
8968                                 goto error;
8969                         }
8970                 } /* loop through all components */
8971
8972                 chunks[idx].mirror_count = i;
8973
8974                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
8975                         break;
8976
8977                 idx++;
8978                 if (idx >= chunks_size) {
8979                         fprintf(stderr, "%s: chunks array is too small.\n",
8980                                 progname);
8981                         rc = -EINVAL;
8982                         goto error;
8983                 }
8984
8985                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
8986         }
8987
8988 error:
8989         return rc < 0 ? rc : idx + 1;
8990 }
8991
8992 /**
8993  * lfs_mirror_verify_chunk() - Verify a chunk.
8994  * @fd:        File descriptor of the mirrored file.
8995  * @file_size: Size of the mirrored file.
8996  * @chunk:     A chunk and its corresponding valid mirror ids.
8997  * @verbose:   Verbose mode.
8998  *
8999  * This function verifies a @chunk contains exactly the same data
9000  * ammong the mirrors that cover it.
9001  *
9002  * If @verbose is specified, then the function will print where the
9003  * differences are if the data do not match. Otherwise, it will
9004  * just return an error in that case.
9005  *
9006  * Return: 0 on success or a negative error code on failure.
9007  */
9008 static inline
9009 int lfs_mirror_verify_chunk(int fd, size_t file_size,
9010                             struct verify_chunk *chunk, int verbose)
9011 {
9012         const size_t buflen = 4 * 1024 * 1024; /* 4M */
9013         void *buf;
9014         size_t page_size = sysconf(_SC_PAGESIZE);
9015         ssize_t bytes_read;
9016         ssize_t bytes_done;
9017         size_t count;
9018         off_t pos;
9019         unsigned long crc;
9020         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9021         int i;
9022         int rc = 0;
9023
9024         if (file_size == 0)
9025                 return 0;
9026
9027         rc = posix_memalign(&buf, page_size, buflen);
9028         if (rc) /* error code is returned directly */
9029                 return -rc;
9030
9031         if (verbose > 1) {
9032                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
9033                         PEXT(&chunk->chunk));
9034                 for (i = 0; i < chunk->mirror_count; i++)
9035                         fprintf(stdout, " %u", chunk->mirror_id[i]);
9036                 fprintf(stdout, "\n");
9037         }
9038
9039         bytes_done = 0;
9040         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
9041         pos = chunk->chunk.e_start;
9042         while (bytes_done < count) {
9043                 /* compute initial CRC-32 checksum */
9044                 crc = crc32(0L, Z_NULL, 0);
9045                 memset(crc_array, 0, sizeof(crc_array));
9046
9047                 bytes_read = 0;
9048                 for (i = 0; i < chunk->mirror_count; i++) {
9049                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
9050                                                        buf, buflen, pos);
9051                         if (bytes_read < 0) {
9052                                 rc = bytes_read;
9053                                 fprintf(stderr,
9054                                         "%s: failed to read data from mirror %u: %s.\n",
9055                                         progname, chunk->mirror_id[i],
9056                                         strerror(-rc));
9057                                 goto error;
9058                         }
9059
9060                         /* compute new CRC-32 checksum */
9061                         crc_array[i] = crc32(crc, buf, bytes_read);
9062                 }
9063
9064                 if (verbose)
9065                         print_checksums(chunk, crc_array);
9066
9067                 /* compare CRC-32 checksum values */
9068                 for (i = 1; i < chunk->mirror_count; i++) {
9069                         if (crc_array[i] != crc_array[0]) {
9070                                 rc = -EINVAL;
9071                                 if (!verbose)
9072                                         goto error;
9073
9074                                 fprintf(stderr,
9075                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
9076                                         progname, PEXT(&chunk->chunk),
9077                                         chunk->mirror_id[0],
9078                                         chunk->mirror_id[i]);
9079                         }
9080                 }
9081
9082                 pos += bytes_read;
9083                 bytes_done += bytes_read;
9084         }
9085
9086         if (verbose > 1 && rc == 0) {
9087                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
9088                         PEXT(&chunk->chunk));
9089                 for (i = 0; i < chunk->mirror_count; i++)
9090                         fprintf(stdout, " %u", chunk->mirror_id[i]);
9091                 fprintf(stdout, " PASS\n\n");
9092         }
9093
9094 error:
9095         free(buf);
9096         return rc;
9097 }
9098
9099 /**
9100  * lfs_mirror_verify_file() - Verify a mirrored file.
9101  * @fname:      Mirrored file name.
9102  * @mirror_ids: Specified mirror ids to be verified.
9103  * @ids_nr:     Number of specified mirror ids.
9104  * @verbose:    Verbose mode.
9105  *
9106  * This function verifies that each SYNC mirror of a mirrored file
9107  * specified by @fname contains exactly the same data.
9108  *
9109  * If @mirror_ids is specified, then the function will verify the
9110  * mirrors specified by @mirror_ids contain exactly the same data.
9111  *
9112  * If @verbose is specified, then the function will print where the
9113  * differences are if the data do not match. Otherwise, it will
9114  * just return an error in that case.
9115  *
9116  * Return: 0 on success or a negative error code on failure.
9117  */
9118 static inline
9119 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
9120                            int verbose)
9121 {
9122         struct verify_chunk chunks_array[1024] = { };
9123         struct llapi_layout *layout = NULL;
9124         struct stat stbuf;
9125         uint32_t flr_state;
9126         int fd;
9127         int chunk_count = 0;
9128         int idx = 0;
9129         int rc = 0;
9130         int rc1 = 0;
9131         int rc2 = 0;
9132
9133         if (stat(fname, &stbuf) < 0) {
9134                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9135                         progname, fname, strerror(errno));
9136                 rc = -errno;
9137                 goto error;
9138         }
9139
9140         if (!S_ISREG(stbuf.st_mode)) {
9141                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9142                         progname, fname);
9143                 rc = -EINVAL;
9144                 goto error;
9145         }
9146
9147         if (stbuf.st_size == 0) {
9148                 if (verbose)
9149                         fprintf(stdout, "%s: '%s' file size is 0.\n",
9150                                 progname, fname);
9151                 rc = 0;
9152                 goto error;
9153         }
9154
9155         fd = open(fname, O_DIRECT | O_RDONLY);
9156         if (fd < 0) {
9157                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9158                         progname, fname, strerror(errno));
9159                 rc = -errno;
9160                 goto error;
9161         }
9162
9163         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
9164         if (rc < 0) {
9165                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
9166                         progname, fname, strerror(errno));
9167                 goto close_fd;
9168         }
9169
9170         layout = llapi_layout_get_by_fd(fd, 0);
9171         if (layout == NULL) {
9172                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9173                         progname, fname, strerror(errno));
9174                 rc = -errno;
9175                 llapi_lease_release(fd);
9176                 goto close_fd;
9177         }
9178
9179         rc = llapi_layout_flags_get(layout, &flr_state);
9180         if (rc < 0) {
9181                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9182                         progname, fname, strerror(errno));
9183                 rc = -errno;
9184                 goto free_layout;
9185         }
9186
9187         flr_state &= LCM_FL_FLR_MASK;
9188         switch (flr_state) {
9189         case LCM_FL_NONE:
9190                 rc = -EINVAL;
9191                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
9192                         progname, fname, llapi_layout_flags_string(flr_state));
9193                 goto free_layout;
9194         default:
9195                 break;
9196         }
9197
9198         /* find out mirror chunks to be verified */
9199         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
9200                                                ARRAY_SIZE(chunks_array));
9201         if (chunk_count < 0) {
9202                 rc = chunk_count;
9203                 goto free_layout;
9204         }
9205
9206         if (ids_nr > 0)
9207                 /* filter specified mirror ids */
9208                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
9209
9210         if (verbose > 2)
9211                 print_chunks(fname, chunks_array, chunk_count);
9212
9213         for (idx = 0; idx < chunk_count; idx++) {
9214                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
9215                         if (verbose)
9216                                 fprintf(stdout,
9217                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
9218                                         progname, fname,
9219                                         PEXT(&chunks_array[idx].chunk),
9220                                         (unsigned long long)stbuf.st_size);
9221                         break;
9222                 }
9223
9224                 if (chunks_array[idx].mirror_count == 0) {
9225                         fprintf(stderr,
9226                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
9227                                 progname, fname,
9228                                 PEXT(&chunks_array[idx].chunk));
9229                         if (verbose) {
9230                                 fprintf(stderr, "skipped\n");
9231                                 continue;
9232                         }
9233                         rc = -EINVAL;
9234                         fprintf(stderr, "failed\n");
9235                         goto free_layout;
9236                 }
9237
9238                 if (chunks_array[idx].mirror_count == 1) {
9239                         if (verbose)
9240                                 fprintf(stdout,
9241                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
9242                                         progname, fname,
9243                                         PEXT(&chunks_array[idx].chunk),
9244                                         chunks_array[idx].mirror_id[0]);
9245                         continue;
9246                 }
9247
9248                 rc = llapi_lease_check(fd);
9249                 if (rc != LL_LEASE_RDLCK) {
9250                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
9251                                 progname, fname);
9252                         goto free_layout;
9253                 }
9254
9255                 /* verify one chunk */
9256                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
9257                                               &chunks_array[idx], verbose);
9258                 if (rc1 < 0) {
9259                         rc2 = rc1;
9260                         if (!verbose) {
9261                                 rc = rc1;
9262                                 goto free_layout;
9263                         }
9264                 }
9265         }
9266
9267         if (rc2 < 0)
9268                 rc = rc2;
9269
9270 free_layout:
9271         llapi_layout_free(layout);
9272         llapi_lease_release(fd);
9273 close_fd:
9274         close(fd);
9275 error:
9276         return rc;
9277 }
9278
9279 /**
9280  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
9281  * @argc: The count of lfs mirror verify command line arguments.
9282  * @argv: Array of strings for lfs mirror verify command line arguments.
9283  *
9284  * This function parses lfs mirror verify command and verifies the
9285  * specified mirrored file(s).
9286  *
9287  * Return: 0 on success or a negative error code on failure.
9288  */
9289 static inline int lfs_mirror_verify(int argc, char **argv)
9290 {
9291         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9292         int ids_nr = 0;
9293         int c;
9294         int verbose = 0;
9295         int rc = 0;
9296         int rc1 = 0;
9297         char cmd[PATH_MAX];
9298
9299         struct option long_opts[] = {
9300         { .val = 'o',   .name = "only",         .has_arg = required_argument },
9301         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
9302         { .name = NULL } };
9303
9304         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
9305         progname = cmd;
9306         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
9307                 switch (c) {
9308                 case 'o':
9309                         rc = parse_mirror_ids(mirror_ids,
9310                                               ARRAY_SIZE(mirror_ids),
9311                                               optarg);
9312                         if (rc < 0) {
9313                                 fprintf(stderr,
9314                                         "%s: bad mirror ids '%s'.\n",
9315                                         progname, optarg);
9316                                 goto error;
9317                         }
9318                         ids_nr = rc;
9319                         if (ids_nr < 2) {
9320                                 fprintf(stderr,
9321                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
9322                                         progname);
9323                                 rc = CMD_HELP;
9324                                 goto error;
9325                         }
9326                         break;
9327                 case 'v':
9328                         verbose++;
9329                         break;
9330                 default:
9331                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
9332                                 progname, argv[optind - 1]);
9333                         rc = -EINVAL;
9334                         goto error;
9335                 }
9336         }
9337
9338         if (argc == optind) {
9339                 fprintf(stderr, "%s: no file name given.\n", progname);
9340                 rc = CMD_HELP;
9341                 goto error;
9342         }
9343
9344         if (ids_nr > 0 && argc > optind + 1) {
9345                 fprintf(stderr,
9346                         "%s: '--only' cannot be used upon multiple files.\n",
9347                         progname);
9348                 rc = CMD_HELP;
9349                 goto error;
9350
9351         }
9352
9353         if (ids_nr > 0) {
9354                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
9355                 if (rc < 0)
9356                         goto error;
9357         }
9358
9359         rc = 0;
9360         for (; optind < argc; optind++) {
9361                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
9362                                              verbose);
9363                 if (rc1 < 0)
9364                         rc = rc1;
9365         }
9366 error:
9367         return rc;
9368 }
9369
9370 /**
9371  * lfs_mirror() - Parse and execute lfs mirror commands.
9372  * @argc: The count of lfs mirror command line arguments.
9373  * @argv: Array of strings for lfs mirror command line arguments.
9374  *
9375  * This function parses lfs mirror commands and performs the
9376  * corresponding functions specified in mirror_cmdlist[].
9377  *
9378  * Return: 0 on success or an error code on failure.
9379  */
9380 static int lfs_mirror(int argc, char **argv)
9381 {
9382         char cmd[PATH_MAX];
9383         int rc = 0;
9384
9385         setlinebuf(stdout);
9386
9387         Parser_init("lfs-mirror > ", mirror_cmdlist);
9388
9389         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
9390         progname = cmd;
9391         program_invocation_short_name = cmd;
9392         if (argc > 1)
9393                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
9394         else
9395                 rc = Parser_commands();
9396
9397         return rc < 0 ? -rc : rc;
9398 }
9399
9400 static void lustre_som_swab(struct lustre_som_attrs *attrs)
9401 {
9402 #if __BYTE_ORDER == __BIG_ENDIAN
9403         __swab16s(&attrs->lsa_valid);
9404         __swab64s(&attrs->lsa_size);
9405         __swab64s(&attrs->lsa_blocks);
9406 #endif
9407 }
9408
9409 enum lfs_som_type {
9410         LFS_SOM_SIZE = 0x1,
9411         LFS_SOM_BLOCKS = 0x2,
9412         LFS_SOM_FLAGS = 0x4,
9413         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
9414                            LFS_SOM_FLAGS,
9415 };
9416
9417 static int lfs_getsom(int argc, char **argv)
9418 {
9419         const char *path;
9420         struct lustre_som_attrs *attrs;
9421         char buf[sizeof(*attrs) + 64];
9422         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
9423         int rc = 0, c;
9424
9425         while ((c = getopt(argc, argv, "sbf")) != -1) {
9426                 switch (c) {
9427                 case 's':
9428                         type = LFS_SOM_SIZE;
9429                         break;
9430                 case 'b':
9431                         type = LFS_SOM_BLOCKS;
9432                         break;
9433                 case 'f':
9434                         type = LFS_SOM_FLAGS;
9435                         break;
9436                 default:
9437                         fprintf(stderr, "%s: invalid option '%c'\n",
9438                                 progname, optopt);
9439                         return CMD_HELP;
9440                 }
9441         }
9442
9443         argc -= optind;
9444         argv += optind;
9445
9446         if (argc != 1) {
9447                 fprintf(stderr, "%s: %s\n",
9448                         progname, argc == 0 ? "miss file target" :
9449                         "input more than 2 files");
9450                 return CMD_HELP;
9451         }
9452
9453         path = argv[0];
9454         attrs = (void *)buf;
9455         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
9456         if (rc < 0) {
9457                 rc = -errno;
9458                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
9459                         argv[0], strerror(errno), errno);
9460                 return rc;
9461         }
9462
9463         lustre_som_swab(attrs);
9464
9465         switch (type) {
9466         case LFS_SOM_ATTR_ALL:
9467                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
9468                        path, attrs->lsa_size, attrs->lsa_blocks,
9469                        attrs->lsa_valid);
9470                 break;
9471         case LFS_SOM_SIZE:
9472                 printf("%llu\n", attrs->lsa_size);
9473                 break;
9474         case LFS_SOM_BLOCKS:
9475                 printf("%llu\n", attrs->lsa_blocks);
9476                 break;
9477         case LFS_SOM_FLAGS:
9478                 printf("%x\n", attrs->lsa_valid);
9479                 break;
9480         default:
9481                 fprintf(stderr, "%s: unknown option\n", progname);
9482                 return CMD_HELP;
9483         }
9484
9485         return 0;
9486 }
9487
9488 /**
9489  * lfs_mirror_list_commands() - List lfs mirror commands.
9490  * @argc: The count of command line arguments.
9491  * @argv: Array of strings for command line arguments.
9492  *
9493  * This function lists lfs mirror commands defined in mirror_cmdlist[].
9494  *
9495  * Return: 0 on success.
9496  */
9497 static int lfs_mirror_list_commands(int argc, char **argv)
9498 {
9499         char buffer[81] = "";
9500
9501         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
9502                              NULL, 0, 4);
9503
9504         return 0;
9505 }
9506
9507 static int lfs_list_commands(int argc, char **argv)
9508 {
9509         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
9510
9511         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
9512
9513         return 0;
9514 }
9515
9516 int main(int argc, char **argv)
9517 {
9518         int rc;
9519
9520         /* Ensure that liblustreapi constructor has run */
9521         if (!llapi_liblustreapi_initialized())
9522                 fprintf(stderr, "liblustreapi was not properly initialized\n");
9523
9524         setlinebuf(stdout);
9525         opterr = 0;
9526
9527         Parser_init("lfs > ", cmdlist);
9528
9529         progname = program_invocation_short_name; /* Used in error messages */
9530         if (argc > 1) {
9531                 llapi_set_command_name(argv[1]);
9532                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
9533                 llapi_clear_command_name();
9534         } else {
9535                 rc = Parser_commands();
9536         }
9537
9538         return rc < 0 ? -rc : rc;
9539 }
9540
9541 #ifdef _LUSTRE_IDL_H_
9542 /* Everything we need here should be included by lustreapi.h. */
9543 # error "lfs should not depend on lustre_idl.h"
9544 #endif /* _LUSTRE_IDL_H_ */