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_poollist(int argc, char **argv);
 102 static int lfs_changelog(int argc, char **argv);
 103 static int lfs_changelog_clear(int argc, char **argv);
 104 static int lfs_fid2path(int argc, char **argv);
 105 static int lfs_path2fid(int argc, char **argv);
 106 static int lfs_data_version(int argc, char **argv);
 107 static int lfs_hsm_state(int argc, char **argv);
 108 static int lfs_hsm_set(int argc, char **argv);
 109 static int lfs_hsm_clear(int argc, char **argv);
 110 static int lfs_hsm_action(int argc, char **argv);
 111 static int lfs_hsm_archive(int argc, char **argv);
 112 static int lfs_hsm_restore(int argc, char **argv);
 113 static int lfs_hsm_release(int argc, char **argv);
 114 static int lfs_hsm_remove(int argc, char **argv);
 115 static int lfs_hsm_cancel(int argc, char **argv);
 116 static int lfs_swap_layouts(int argc, char **argv);
 117 static int lfs_mv(int argc, char **argv);
 118 static int lfs_ladvise(int argc, char **argv);
 119 static int lfs_getsom(int argc, char **argv);
 120 static int lfs_heat_get(int argc, char **argv);
 121 static int lfs_heat_set(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 static inline int lfs_mirror_copy(int argc, char **argv);
 130
 131 enum setstripe_origin {
 132         SO_SETSTRIPE,
 133         SO_MIGRATE,
 134         SO_MIGRATE_MDT,
 135         SO_MIRROR_CREATE,
 136         SO_MIRROR_EXTEND,
 137         SO_MIRROR_SPLIT,
 138 };
 139 static int lfs_setstripe_internal(int argc, char **argv,
 140                                   enum setstripe_origin opc);
 141
 142 static inline int lfs_setstripe(int argc, char **argv)
 143 {
 144         return lfs_setstripe_internal(argc, argv, SO_SETSTRIPE);
 145 }
 146 static inline int lfs_setstripe_migrate(int argc, char **argv)
 147 {
 148         return lfs_setstripe_internal(argc, argv, SO_MIGRATE);
 149 }
 150 static inline int lfs_mirror_create(int argc, char **argv)
 151 {
 152         return lfs_setstripe_internal(argc, argv, SO_MIRROR_CREATE);
 153 }
 154 static inline int lfs_mirror_extend(int argc, char **argv)
 155 {
 156         return lfs_setstripe_internal(argc, argv, SO_MIRROR_EXTEND);
 157 }
 158 static inline int lfs_mirror_split(int argc, char **argv)
 159 {
 160         return lfs_setstripe_internal(argc, argv, SO_MIRROR_SPLIT);
 161 }
 162
 163 /* Setstripe and migrate share mostly the same parameters */
 164 #define SSM_CMD_COMMON(cmd) \
 165         "usage: "cmd" [--component-end|-E <comp_end>]\n"                \
 166         "                 [--stripe-count|-c <stripe_count>]\n"         \
 167         "                 [--stripe-index|-i <start_ost_idx>]\n"        \
 168         "                 [--stripe-size|-S <stripe_size>]\n"           \
 169         "                 [--layout|-L <pattern>]\n"                    \
 170         "                 [--pool|-p <pool_name>]\n"                    \
 171         "                 [--ost|-o <ost_indices>]\n"                   \
 172         "                 [--yaml|-y <yaml_template_file>]\n"           \
 173         "                 [--copy=<lustre_src>]\n"
 174
 175 #define SSM_HELP_COMMON \
 176         "\tstripe_count: Number of OSTs to stripe over (0=fs default, -1 all)\n" \
 177         "\tstart_ost_idx: OST index of first stripe (-1=default round robin)\n"\
 178         "\tstripe_size:  Number of bytes on each OST (0=fs default)\n" \
 179         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 180         "\t              respectively)\n"                               \
 181         "\tpool_name:    Name of OST pool to use (default none)\n"      \
 182         "\tlayout:       stripe pattern type: raid0, mdt (default raid0)\n"\
 183         "\tost_indices:  List of OST indices, can be repeated multiple times\n"\
 184         "\t              Indices be specified in a format of:\n"        \
 185         "\t                -o <ost_1>,<ost_i>-<ost_j>,<ost_n>\n"        \
 186         "\t              Or:\n"                                         \
 187         "\t                -o <ost_1> -o <ost_i>-<ost_j> -o <ost_n>\n"  \
 188         "\t              If --pool is set with --ost, then the OSTs\n"  \
 189         "\t              must be the members of the pool.\n"            \
 190         "\tcomp_end:     Extent end of component, start after previous end.\n"\
 191         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 192         "\t              respectively, -1 for EOF). Must be a multiple of\n"\
 193         "\t              stripe_size.\n"                                      \
 194         "\tyaml_template_file:\n"                                             \
 195         "\t              YAML layout template file, can't be used with -c,\n" \
 196         "\t              -i, -S, -p, -o, or -E arguments.\n"                  \
 197         "\tlustre_src:   Lustre file/dir whose layout info is used to set\n"  \
 198         "\t              another lustre file or directory, can't used with\n" \
 199         "\t              -c, -i, -S, -p, -o, or -E arguments.\n"
 200
 201 #define MIRROR_CREATE_HELP                                                     \
 202         "\tmirror_count: Number of mirrors to be created with the upcoming\n"  \
 203         "\t              setstripe layout options\n"                           \
 204         "\t              It defaults to 1 if not specified; if specified,\n"   \
 205         "\t              it must follow the option without a space.\n"         \
 206         "\t              The option can also be repeated multiple times to\n"  \
 207         "\t              separate mirrors that have different layouts.\n"      \
 208         "\tsetstripe options: Mirror layout\n"                                 \
 209         "\t              It can be a plain layout or a composite layout.\n"    \
 210         "\t              If not specified, the stripe options inherited\n"     \
 211         "\t              from the previous component will be used.\n"          \
 212         "\tflags:        set flags to the component of the current mirror.\n"  \
 213         "\t              Only \"prefer\" flag is supported so far.\n"
 214
 215 #define MIRROR_EXTEND_HELP                                                     \
 216         MIRROR_CREATE_HELP                                                     \
 217         "\tvictim_file:  The layout of victim_file will be split and used\n"   \
 218         "\t              as a mirror added to the mirrored file.\n"            \
 219         "\tno-verify:    This option indicates not to verify the mirror(s)\n"  \
 220         "\t              from victim file(s) in case the victim file(s)\n"     \
 221         "\t              contains the same data as the original mirrored\n"    \
 222         "\t              file.\n"
 223
 224 #define MIRROR_EXTEND_USAGE                                                    \
 225         "                 <--mirror-count|-N[mirror_count]>\n"                 \
 226         "                 [setstripe options|-f <victim_file>]\n"              \
 227         "                 [--no-verify]\n"
 228
 229 #define SETSTRIPE_USAGE                                                 \
 230         SSM_CMD_COMMON("setstripe")                                     \
 231         MIRROR_EXTEND_USAGE                                             \
 232         "                 <directory|filename>\n"                       \
 233         SSM_HELP_COMMON                                                 \
 234         MIRROR_EXTEND_HELP
 235
 236 #define MIGRATE_USAGE                                                   \
 237         SSM_CMD_COMMON("migrate  ")                                     \
 238         "                 [--block|-b] [--non-block|-n]\n"              \
 239         "                 [--non-direct|-D] [--verbose|-v]\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         "\tverbose:      Print each filename as it is migrated\n"       \
 247
 248 #define SETDIRSTRIPE_USAGE                                              \
 249         "               [--mdt-count|-c stripe_count>\n"                \
 250         "               [--mdt-hash|-H mdt_hash]\n"                     \
 251         "               [--mdt-index|-i mdt_index[,mdt_index,...]\n"    \
 252         "               [--default|-D] [--mode|-o mode] <dir>\n"        \
 253         "\tstripe_count: stripe count of the striped directory\n"       \
 254         "\tmdt_index: MDT index of first stripe\n"                      \
 255         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 256         "       fnv_1a_64 FNV-1a hash algorithm (default)\n"            \
 257         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 258         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 259         "\tmode: the file access permission of the directory (octal)\n"
 260
 261 /**
 262  * command_t mirror_cmdlist - lfs mirror commands.
 263  */
 264 command_t mirror_cmdlist[] = {
 265         { .pc_name = "create", .pc_func = lfs_mirror_create,
 266           .pc_help = "Create a mirrored file.\n"
 267                 "usage: lfs mirror create "
 268                 "<--mirror-count|-N[mirror_count]> "
 269                 "[setstripe options] ... <filename|directory>\n"
 270           MIRROR_CREATE_HELP },
 271         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 272           .pc_help = "Extend a mirrored file.\n"
 273                 "usage: lfs mirror extend "
 274                 "<--mirror-count|-N[mirror_count]> [--no-verify] "
 275                 "[setstripe options|-f <victim_file>] ... <filename>\n"
 276           MIRROR_EXTEND_HELP },
 277         { .pc_name = "split", .pc_func = lfs_mirror_split,
 278           .pc_help = "Split a mirrored file.\n"
 279         "usage: lfs mirror split <--mirror-id <mirror_id> | \n"
 280         "\t             <--component-id|-I <comp_id>> [--destroy|-d] \n"
 281         "\t             [-f <new_file>] <mirrored file>\n"
 282         "\tmirror_id:   The numerical unique identifier for a mirror. It\n"
 283         "\t             can be fetched by lfs getstripe command.\n"
 284         "\tcomp_id:     Unique component ID within a mirror.\n"
 285         "\tnew_file:    This option indicates the layout of the split\n"
 286         "\t             mirror will be stored into. If not specified,\n"
 287         "\t             a new file named <mirrored_file>.mirror~<mirror_id>\n"
 288         "\t             will be used.\n" },
 289         { .pc_name = "read", .pc_func = lfs_mirror_read,
 290           .pc_help = "Read the content of a specified mirror of a file.\n"
 291                 "usage: lfs mirror read <--mirror-id|-N <mirror_id> "
 292                 "[--outfile|-o <output_file>] <mirrored_file>\n" },
 293         { .pc_name = "write", .pc_func = lfs_mirror_write,
 294           .pc_help = "Write to a specified mirror of a file.\n"
 295                 "usage: lfs mirror write <--mirror-id|-N <mirror_id> "
 296                 "[--inputfile|-i <input_file>] <mirrored_file>\n" },
 297         { .pc_name = "copy", .pc_func = lfs_mirror_copy,
 298           .pc_help = "Copy a specified mirror to other mirror(s) of a file.\n"
 299                 "usage: lfs mirror copy <--read-mirror|-i <id0>> "
 300                 "<--write-mirror|-o <id1,id2>> <mirrored_file>\n" },
 301         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 302           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 303                 "usage: lfs mirror resync [--only <mirror_id[,...]>] "
 304                 "<mirrored file> [<mirrored file2>...]\n"},
 305         { .pc_name = "verify", .pc_func = lfs_mirror_verify,
 306           .pc_help = "Verify mirrored file(s).\n"
 307                 "usage: lfs mirror verify "
 308                 "[--only <mirror_id,mirror_id2[,...]>] "
 309                 "[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n"},
 310         { .pc_name = "list-commands", .pc_func = lfs_mirror_list_commands,
 311           .pc_help = "list commands supported by lfs mirror"},
 312         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 313         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 314         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 315         { .pc_help = NULL }
 316 };
 317
 318 /* all available commands */
 319 command_t cmdlist[] = {
 320         {"setstripe", lfs_setstripe, 0,
 321          "To create a file with specified striping/composite layout, or\n"
 322          "create/replace the default layout on an existing directory:\n"
 323          SSM_CMD_COMMON("setstripe")
 324          "                 <directory|filename>\n"
 325          " or\n"
 326          "To add component(s) to an existing composite file:\n"
 327          SSM_CMD_COMMON("setstripe --component-add")
 328          SSM_HELP_COMMON
 329          "To totally delete the default striping from an existing directory:\n"
 330          "usage: setstripe -d <directory>\n"
 331          " or\n"
 332          "To create a mirrored file or set s default mirror layout on a directory:\n"
 333          "usage: setstripe -N[mirror_count] [STRIPE_OPTIONS] <directory|filename>\n"
 334          " or\n"
 335          "To delete the last component(s) from an existing composite file\n"
 336          "(note that this will also delete any data in those components):\n"
 337          "usage: setstripe --component-del [--component-id|-I <comp_id>]\n"
 338          "                               [--component-flags|-F <comp_flags>]\n"
 339          "                               <filename>\n"
 340          "\tcomp_id:     Unique component ID to delete\n"
 341          "\tcomp_flags:  'init' indicating all instantiated components\n"
 342          "\t             '^init' indicating all uninstantiated components\n"
 343          "\t-I and -F cannot be specified at the same time\n"},
 344         {"getstripe", lfs_getstripe, 0,
 345          "To list the layout pattern for a given file or files in a\n"
 346          "directory or recursively for all files in a directory tree.\n"
 347          "usage: getstripe [--ost|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
 348          "                 [--stripe-count|-c] [--stripe-index|-i] [--fid|-F]\n"
 349          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 350          "                 [--mdt-index|-m] [--recursive|-r] [--raw|-R]\n"
 351          "                 [--layout|-L] [--generation|-g] [--yaml|-y]\n"
 352          "                 [--component-id[=comp_id]|-I[comp_id]]\n"
 353          "                 [--component-flags[=comp_flags]]\n"
 354          "                 [--component-count]\n"
 355          "                 [--component-start[=[+-]comp_start]]\n"
 356          "                 [--component-end[=[+-]comp_end]|-E[[+-]comp_end]]\n"
 357          "                 [[!] --mirror-index=[+-]<index> |\n"
 358          "                  [!] --mirror-id=[+-]<id>]\n"
 359          "                 <directory|filename> ..."},
 360         {"setdirstripe", lfs_setdirstripe, 0,
 361          "To create a striped directory on a specified MDT. This can only\n"
 362          "be done on MDT0 with the right of administrator.\n"
 363          "usage: setdirstripe [OPTION] <directory>\n"
 364          SETDIRSTRIPE_USAGE},
 365         {"getdirstripe", lfs_getdirstripe, 0,
 366          "To list the layout pattern info for a given directory\n"
 367          "or recursively for all directories in a directory tree.\n"
 368          "usage: getdirstripe [--mdt-count|-c] [--mdt-index|-m|-i]\n"
 369          "                    [--mdt-hash|-H] [--obd|-O <uuid>]\n"
 370          "                    [--recursive|-r] [--yaml|-y]\n"
 371          "                    [--default|-D] <dir> ..."},
 372         {"mkdir", lfs_setdirstripe, 0,
 373          "To create a striped directory on a specified MDT. This can only\n"
 374          "be done on MDT0 with the right of administrator.\n"
 375          "usage: mkdir [OPTION] <directory>\n"
 376          SETDIRSTRIPE_USAGE},
 377         {"rm_entry", lfs_rmentry, 0,
 378          "To remove the name entry of the remote directory. Note: This\n"
 379          "command will only delete the name entry, i.e. the remote directory\n"
 380          "will become inaccessable after this command. This can only be done\n"
 381          "by the administrator\n"
 382          "usage: rm_entry <dir>\n"},
 383         {"pool_list", lfs_poollist, 0,
 384          "List pools or pool OSTs\n"
 385          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 386         {"find", lfs_find, 0,
 387          "find files matching given attributes recursively in directory tree.\n"
 388          "usage: find <directory|filename> ...\n"
 389          "     [[!] --atime|-A [+-]N[smhdwy]] [[!] --ctime|-C [+-]N[smhdwy]]\n"
 390          "     [[!] --mtime|-M [+-]N[smhdwy]] [[!] --blocks|-b N]\n"
 391          "     [--maxdepth|-D N] [[!] --mdt-index|--mdt|-m <uuid|index,...>]\n"
 392          "     [[!] --name|-n <pattern>] [[!] --ost|-O <uuid|index,...>]\n"
 393          "     [--print|-P] [--print0|-0] [[!] --size|-s [+-]N[bkMGTPE]]\n"
 394          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 395          "     [[!] --stripe-index|-i <index,...>]\n"
 396          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 397          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
 398          "     [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
 399          "     [[!] --projid <projid>]\n"
 400          "     [[!] --layout|-L released,raid0,mdt]\n"
 401          "     [[!] --component-count [+-]<comp_cnt>]\n"
 402          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 403          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 404          "     [[!] --component-flags <comp_flags>]\n"
 405          "     [[!] --mirror-count|-N [+-]<n>]\n"
 406          "     [[!] --mirror-state <[^]state>]\n"
 407          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 408          "     [[!] --mdt-hash|-H <hashtype>\n"
 409          "     [[!] --mdt-index|-m <uuid|index,...>]\n"
 410          "\t !: used before an option indicates 'NOT' requested attribute\n"
 411          "\t -: used before a value indicates less than requested value\n"
 412          "\t +: used before a value indicates more than requested value\n"
 413          "\thashtype:   hash type of the striped directory.\n"
 414          "\t            fnv_1a_64 FNV-1a hash algorithm\n"
 415          "\t            all_char  sum of characters % MDT_COUNT\n"},
 416         {"check", lfs_check, 0,
 417          "Display the status of MGTs, MDTs or OSTs (as specified in the command)\n"
 418          "or all the servers (MGTs, MDTs and OSTs).\n"
 419          "usage: check <mgts|osts|mdts|all>"},
 420         {"osts", lfs_osts, 0, "list OSTs connected to client "
 421          "[for specified path only]\n" "usage: osts [path]"},
 422         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 423          "[for specified path only]\n" "usage: mdts [path]"},
 424         {"df", lfs_df, 0,
 425          "report filesystem disk space usage or inodes usage"
 426          "of each MDS and all OSDs or a batch belonging to a specific pool .\n"
 427          "Usage: df [-i] [-h] [--lazy|-l] [--pool|-p <fsname>[.<pool>] [path]"},
 428         {"getname", lfs_getname, 0, "list instances and specified mount points "
 429          "[for specified path only]\n"
 430          "Usage: getname [-h]|[path ...] "},
 431 #ifdef HAVE_SYS_QUOTA_H
 432         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 433          "usage: setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 434          "                -b <block-softlimit> -B <block-hardlimit>\n"
 435          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 436          "       setquota <-u|--user|-g|--group|-p|--projid> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 437          "                [--block-softlimit <block-softlimit>]\n"
 438          "                [--block-hardlimit <block-hardlimit>]\n"
 439          "                [--inode-softlimit <inode-softlimit>]\n"
 440          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 441          "       setquota [-t] <-u|--user|-g|--group|-p|--projid>\n"
 442          "                [--block-grace <block-grace>]\n"
 443          "                [--inode-grace <inode-grace>] <filesystem>\n"
 444          "       setquota <-U|-G|-P>\n"
 445          "                -b <block-softlimit> -B <block-hardlimit>\n"
 446          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 447          "       setquota <-U|--default-usr|-G|--default-grp|-P|--default-prj>\n"
 448          "                [--block-softlimit <block-softlimit>]\n"
 449          "                [--block-hardlimit <block-hardlimit>]\n"
 450          "                [--inode-softlimit <inode-softlimit>]\n"
 451          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 452          "       setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 453          "                <-d|--default>\n"
 454          "       -b can be used instead of --block-softlimit/--block-grace\n"
 455          "       -B can be used instead of --block-hardlimit\n"
 456          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 457          "       -I can be used instead of --inode-hardlimit\n"
 458          "       -d can be used instead of --default\n\n"
 459          "Note: The total quota space will be split into many qunits and\n"
 460          "      balanced over all server targets, the minimal qunit size is\n"
 461          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 462          "      The maximum quota grace time is 2^48 - 1 seconds.\n\n"
 463          "      Quota space rebalancing process will stop when this mininum\n"
 464          "      value is reached. As a result, quota exceeded can be returned\n"
 465          "      while many targets still have 1MB or 1K inodes of spare\n"
 466          "      quota space."},
 467         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 468          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
 469                        "<ost_idx>]\n"
 470          "             [<-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>\n"
 471          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g|-p> <filesystem>\n"
 472         "        quota [-q] [-v] [h] <-U|-G|-P> <filesystem>"},
 473         {"project", lfs_project, 0,
 474          "Change or list project attribute for specified file or directory.\n"
 475          "usage: project [-d|-r] <file|directory...>\n"
 476          "         list project ID and flags on file(s) or directories\n"
 477          "       project [-p id] [-s] [-r] <file|directory...>\n"
 478          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 479          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 480          "         check project ID and flags on file(s) or directories, print outliers\n"
 481          "       project -C [-r] [-k] <file|directory...>\n"
 482          "         clear the project inherit flag and ID on the file or directory\n"
 483         },
 484 #endif
 485         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
 486          "usage: flushctx [-k] [mountpoint...]"},
 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-count|-c] <stripe_count>\n"
 545          "               [--mdt-hash|-H] <hash_type>\n"
 546          "               [--mdt-index|-m] <start_mdt_index>\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:        Block file access during data migration (default)\n"
 574          "\tnon-block:    Abort migrations if concurrent access is detected\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 copy   - copy a mirror to other mirror(s) of a file\n"
 597          "lfs mirror verify - verify mirrored file(s)\n"},
 598         {"getsom", lfs_getsom, 0, "To list the SOM info for a given file.\n"
 599          "usage: getsom [-s] [-b] [-f] <path>\n"
 600          "\t-s: Only show the size value of the SOM data for a given file\n"
 601          "\t-b: Only show the blocks value of the SOM data for a given file\n"
 602          "\t-f: Only show the flags value of the SOM data for a given file\n"},
 603         {"heat_get", lfs_heat_get, 0,
 604          "To get heat of files.\n"
 605          "usage: heat_get <file> ...\n"},
 606         {"heat_set", lfs_heat_set, 0,
 607          "To set heat flags of files.\n"
 608          "usage: heat_set [--clear|-c] [--off|-o] [--on|-O] <file> ...\n"
 609          "\t--clear|-c: Clear file heat for given files\n"
 610          "\t--off|-o:   Turn off file heat for given files\n"
 611          "\t--on|-O:    Turn on file heat for given files\n"},
 612         {"help", Parser_help, 0, "help"},
 613         {"exit", Parser_quit, 0, "quit"},
 614         {"quit", Parser_quit, 0, "quit"},
 615         {"--version", Parser_version, 0,
 616          "output build version of the utility and exit"},
 617         {"--list-commands", lfs_list_commands, 0,
 618          "list commands supported by the utility and exit"},
 619         { 0, 0, 0, NULL }
 620 };
 621
 622
 623 static int check_hashtype(const char *hashtype)
 624 {
 625         int i;
 626
 627         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 628                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 629                         return i;
 630
 631         return 0;
 632 }
 633
 634
 635 static const char *error_loc = "syserror";
 636
 637 enum {
 638         MIGRATION_NONBLOCK      = 0x0001,
 639         MIGRATION_MIRROR        = 0x0002,
 640         MIGRATION_NONDIRECT     = 0x0004,
 641         MIGRATION_VERBOSE       = 0x0008,
 642 };
 643
 644 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
 645                                 struct llapi_layout *layout);
 646
 647 static int
 648 migrate_open_files(const char *name, __u64 migration_flags,
 649                    const struct llapi_stripe_param *param,
 650                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 651 {
 652         int                      fd = -1;
 653         int                      fdv = -1;
 654         int                      rflags;
 655         int                      mdt_index;
 656         int                      random_value;
 657         char                     parent[PATH_MAX];
 658         char                     volatile_file[PATH_MAX];
 659         char                    *ptr;
 660         int                      rc;
 661         struct stat              st;
 662         struct stat              stv;
 663
 664         if (param == NULL && layout == NULL) {
 665                 error_loc = "layout information";
 666                 return -EINVAL;
 667         }
 668
 669         /* search for file directory pathname */
 670         if (strlen(name) > sizeof(parent) - 1) {
 671                 error_loc = "source file name";
 672                 return -ERANGE;
 673         }
 674
 675         strncpy(parent, name, sizeof(parent));
 676         ptr = strrchr(parent, '/');
 677         if (ptr == NULL) {
 678                 if (getcwd(parent, sizeof(parent)) == NULL) {
 679                         error_loc = "getcwd";
 680                         return -errno;
 681                 }
 682         } else {
 683                 if (ptr == parent) /* leading '/' */
 684                         ptr = parent + 1;
 685                 *ptr = '\0';
 686         }
 687
 688         /* open file, direct io */
 689         /* even if the file is only read, WR mode is nedeed to allow
 690          * layout swap on fd */
 691         rflags = O_RDWR;
 692         if (!(migration_flags & MIGRATION_NONDIRECT))
 693                 rflags |= O_DIRECT;
 694         fd = open(name, rflags);
 695         if (fd < 0) {
 696                 rc = -errno;
 697                 error_loc = "cannot open source file";
 698                 return rc;
 699         }
 700
 701         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 702         if (rc < 0) {
 703                 error_loc = "cannot get MDT index";
 704                 goto out;
 705         }
 706
 707         do {
 708                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 709                 mode_t open_mode = S_IRUSR | S_IWUSR;
 710
 711                 random_value = random();
 712                 rc = snprintf(volatile_file, sizeof(volatile_file),
 713                               "%s/%s:%.4X:%.4X", parent, LUSTRE_VOLATILE_HDR,
 714                               mdt_index, random_value);
 715                 if (rc >= sizeof(volatile_file)) {
 716                         rc = -ENAMETOOLONG;
 717                         break;
 718                 }
 719
 720                 /* create, open a volatile file, use caching (ie no directio) */
 721                 if (param != NULL)
 722                         fdv = llapi_file_open_param(volatile_file, open_flags,
 723                                                     open_mode, param);
 724                 else
 725                         fdv = lfs_component_create(volatile_file, open_flags,
 726                                                    open_mode, layout);
 727         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 728
 729         if (rc < 0) {
 730                 error_loc = "cannot create volatile file";
 731                 goto out;
 732         }
 733
 734         /* In case the MDT does not support creation of volatile files
 735          * we should try to unlink it. */
 736         (void)unlink(volatile_file);
 737
 738         /* Not-owner (root?) special case.
 739          * Need to set owner/group of volatile file like original.
 740          * This will allow to pass related check during layout_swap.
 741          */
 742         rc = fstat(fd, &st);
 743         if (rc != 0) {
 744                 rc = -errno;
 745                 error_loc = "cannot stat source file";
 746                 goto out;
 747         }
 748
 749         rc = fstat(fdv, &stv);
 750         if (rc != 0) {
 751                 rc = -errno;
 752                 error_loc = "cannot stat volatile";
 753                 goto out;
 754         }
 755
 756         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 757                 rc = fchown(fdv, st.st_uid, st.st_gid);
 758                 if (rc != 0) {
 759                         rc = -errno;
 760                         error_loc = "cannot change ownwership of volatile";
 761                         goto out;
 762                 }
 763         }
 764
 765 out:
 766         if (rc < 0) {
 767                 if (fd > 0)
 768                         close(fd);
 769                 if (fdv > 0)
 770                         close(fdv);
 771         } else {
 772                 *fd_src = fd;
 773                 *fd_tgt = fdv;
 774                 error_loc = NULL;
 775         }
 776         return rc;
 777 }
 778
 779 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 780 {
 781         struct llapi_layout *layout;
 782         size_t   buf_size = 4 * 1024 * 1024;
 783         void    *buf = NULL;
 784         ssize_t  rsize = -1;
 785         ssize_t  wsize = 0;
 786         size_t   rpos = 0;
 787         size_t   wpos = 0;
 788         off_t    bufoff = 0;
 789         int      rc;
 790
 791         layout = llapi_layout_get_by_fd(fd_src, 0);
 792         if (layout != NULL) {
 793                 uint64_t stripe_size;
 794
 795                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 796                 if (rc == 0)
 797                         buf_size = stripe_size;
 798
 799                 llapi_layout_free(layout);
 800         }
 801
 802         /* Use a page-aligned buffer for direct I/O */
 803         rc = posix_memalign(&buf, getpagesize(), buf_size);
 804         if (rc != 0)
 805                 return -rc;
 806
 807         while (1) {
 808                 /* read new data only if we have written all
 809                  * previously read data */
 810                 if (wpos == rpos) {
 811                         if (check_file) {
 812                                 rc = check_file(fd_src);
 813                                 if (rc < 0)
 814                                         break;
 815                         }
 816
 817                         rsize = read(fd_src, buf, buf_size);
 818                         if (rsize < 0) {
 819                                 rc = -errno;
 820                                 break;
 821                         }
 822                         rpos += rsize;
 823                         bufoff = 0;
 824                 }
 825                 /* eof ? */
 826                 if (rsize == 0)
 827                         break;
 828
 829                 wsize = write(fd_dst, buf + bufoff, rpos - wpos);
 830                 if (wsize < 0) {
 831                         rc = -errno;
 832                         break;
 833                 }
 834                 wpos += wsize;
 835                 bufoff += wsize;
 836         }
 837
 838         if (rc == 0) {
 839                 rc = fsync(fd_dst);
 840                 if (rc < 0)
 841                         rc = -errno;
 842         }
 843
 844         free(buf);
 845         return rc;
 846 }
 847
 848 static int migrate_copy_timestamps(int fd, int fdv)
 849 {
 850         struct stat st;
 851
 852         if (fstat(fd, &st) == 0) {
 853                 struct timeval tv[2] = {
 854                         {.tv_sec = st.st_atime},
 855                         {.tv_sec = st.st_mtime}
 856                 };
 857
 858                 return futimes(fdv, tv);
 859         }
 860
 861         return -errno;
 862 }
 863
 864 static int migrate_block(int fd, int fdv)
 865 {
 866         __u64   dv1;
 867         int     gid;
 868         int     rc;
 869         int     rc2;
 870
 871         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 872         if (rc < 0) {
 873                 error_loc = "cannot get dataversion";
 874                 return rc;
 875         }
 876
 877         do
 878                 gid = random();
 879         while (gid == 0);
 880
 881         /* The grouplock blocks all concurrent accesses to the file.
 882          * It has to be taken after llapi_get_data_version as it would
 883          * block it too. */
 884         rc = llapi_group_lock(fd, gid);
 885         if (rc < 0) {
 886                 error_loc = "cannot get group lock";
 887                 return rc;
 888         }
 889
 890         rc = migrate_copy_data(fd, fdv, NULL);
 891         if (rc < 0) {
 892                 error_loc = "data copy failed";
 893                 goto out_unlock;
 894         }
 895
 896         /* Make sure we keep original atime/mtime values */
 897         rc = migrate_copy_timestamps(fd, fdv);
 898         if (rc < 0) {
 899                 error_loc = "timestamp copy failed";
 900                 goto out_unlock;
 901         }
 902
 903         /* swap layouts
 904          * for a migration we need to check data version on file did
 905          * not change.
 906          *
 907          * Pass in gid=0 since we already own grouplock. */
 908         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
 909                                            SWAP_LAYOUTS_CHECK_DV1);
 910         if (rc == -EAGAIN) {
 911                 error_loc = "file changed";
 912                 goto out_unlock;
 913         } else if (rc < 0) {
 914                 error_loc = "cannot swap layout";
 915                 goto out_unlock;
 916         }
 917
 918 out_unlock:
 919         rc2 = llapi_group_unlock(fd, gid);
 920         if (rc2 < 0 && rc == 0) {
 921                 error_loc = "unlock group lock";
 922                 rc = rc2;
 923         }
 924
 925         return rc;
 926 }
 927
 928 /**
 929  * Internal helper for migrate_copy_data(). Check lease and report error if
 930  * need be.
 931  *
 932  * \param[in]  fd           File descriptor on which to check the lease.
 933  *
 934  * \retval 0       Migration can keep on going.
 935  * \retval -errno  Error occurred, abort migration.
 936  */
 937 static int check_lease(int fd)
 938 {
 939         int rc;
 940
 941         rc = llapi_lease_check(fd);
 942         if (rc > 0)
 943                 return 0; /* llapi_check_lease returns > 0 on success. */
 944
 945         return -EBUSY;
 946 }
 947
 948 static int migrate_nonblock(int fd, int fdv)
 949 {
 950         __u64   dv1;
 951         __u64   dv2;
 952         int     rc;
 953
 954         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 955         if (rc < 0) {
 956                 error_loc = "cannot get data version";
 957                 return rc;
 958         }
 959
 960         rc = migrate_copy_data(fd, fdv, check_lease);
 961         if (rc < 0) {
 962                 error_loc = "data copy failed";
 963                 return rc;
 964         }
 965
 966         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
 967         if (rc != 0) {
 968                 error_loc = "cannot get data version";
 969                 return rc;
 970         }
 971
 972         if (dv1 != dv2) {
 973                 rc = -EAGAIN;
 974                 error_loc = "source file changed";
 975                 return rc;
 976         }
 977
 978         /* Make sure we keep original atime/mtime values */
 979         rc = migrate_copy_timestamps(fd, fdv);
 980         if (rc < 0) {
 981                 error_loc = "timestamp copy failed";
 982                 return rc;
 983         }
 984
 985         return 0;
 986 }
 987
 988 static int lfs_component_set(char *fname, int comp_id,
 989                              __u32 flags, __u32 neg_flags)
 990 {
 991         __u32 ids[2];
 992         __u32 flags_array[2];
 993         size_t count = 0;
 994         int rc;
 995
 996         if (flags) {
 997                 ids[count] = comp_id;
 998                 flags_array[count] = flags;
 999                 ++count;
1000         }
1001
1002         if (neg_flags) {
1003                 ids[count] = comp_id;
1004                 flags_array[count] = neg_flags | LCME_FL_NEG;
1005                 ++count;
1006         }
1007
1008         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
1009         if (rc)
1010                 fprintf(stderr,
1011                         "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
1012                         progname, comp_id, fname, flags, neg_flags);
1013
1014         return rc;
1015 }
1016
1017 static int lfs_component_del(char *fname, __u32 comp_id,
1018                              __u32 flags, __u32 neg_flags)
1019 {
1020         int     rc = 0;
1021
1022         if (flags && neg_flags)
1023                 return -EINVAL;
1024
1025         if (!flags && neg_flags)
1026                 flags = neg_flags | LCME_FL_NEG;
1027
1028         if ((flags && comp_id) || (!flags && !comp_id))
1029                 return -EINVAL;
1030
1031         /* LCME_FL_INIT is the only supported flag in PFL */
1032         if (flags) {
1033                 if (flags & ~LCME_KNOWN_FLAGS) {
1034                         fprintf(stderr,
1035                                 "%s setstripe: unknown flags %#x\n",
1036                                 progname, flags);
1037                         return -EINVAL;
1038                 }
1039         } else if (comp_id > LCME_ID_MAX) {
1040                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
1041                         progname, comp_id);
1042                 return -EINVAL;
1043         }
1044
1045         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
1046         if (rc)
1047                 fprintf(stderr,
1048                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
1049                         progname, comp_id, fname, strerror(errno));
1050         return rc;
1051 }
1052
1053 static int lfs_component_add(char *fname, struct llapi_layout *layout)
1054 {
1055         int     rc;
1056
1057         if (layout == NULL)
1058                 return -EINVAL;
1059
1060         rc = llapi_layout_file_comp_add(fname, layout);
1061         if (rc)
1062                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1063                         fname, strerror(errno));
1064         return rc;
1065 }
1066
1067 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1068                                 struct llapi_layout *layout)
1069 {
1070         struct stat     st;
1071         int     fd;
1072
1073         if (layout == NULL)
1074                 return -EINVAL;
1075
1076         fd = lstat(fname, &st);
1077         if (fd == 0 && S_ISDIR(st.st_mode))
1078                 open_flags = O_DIRECTORY | O_RDONLY;
1079
1080         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1081         if (fd < 0)
1082                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1083                         S_ISDIR(st.st_mode) ?
1084                                 "set default composite layout for" :
1085                                 "create composite file",
1086                         fname, strerror(errno));
1087         return fd;
1088 }
1089
1090 static int lfs_migrate(char *name, __u64 migration_flags,
1091                        struct llapi_stripe_param *param,
1092                        struct llapi_layout *layout)
1093 {
1094         int fd = -1;
1095         int fdv = -1;
1096         int rc;
1097
1098         rc = migrate_open_files(name, migration_flags, param, layout,
1099                                 &fd, &fdv);
1100         if (rc < 0)
1101                 goto out;
1102
1103         if (!(migration_flags & MIGRATION_NONBLOCK)) {
1104                 /* Blocking mode (forced if servers do not support file lease).
1105                  * It is also the default mode, since we cannot distinguish
1106                  * between a broken lease and a server that does not support
1107                  * atomic swap/close (LU-6785) */
1108                 rc = migrate_block(fd, fdv);
1109                 goto out;
1110         }
1111
1112         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1113         if (rc < 0) {
1114                 error_loc = "cannot get lease";
1115                 goto out;
1116         }
1117
1118         rc = migrate_nonblock(fd, fdv);
1119         if (rc < 0) {
1120                 llapi_lease_release(fd);
1121                 goto out;
1122         }
1123
1124         /* Atomically put lease, swap layouts and close.
1125          * for a migration we need to check data version on file did
1126          * not change. */
1127         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1128         if (rc < 0) {
1129                 error_loc = "cannot swap layout";
1130                 goto out;
1131         }
1132
1133 out:
1134         if (fd >= 0)
1135                 close(fd);
1136
1137         if (fdv >= 0)
1138                 close(fdv);
1139
1140         if (rc < 0)
1141                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1142                         progname, name, error_loc, strerror(-rc));
1143         else if (migration_flags & MIGRATION_VERBOSE)
1144                 printf("%s\n", name);
1145
1146         return rc;
1147 }
1148
1149 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1150 {
1151         char *name;
1152
1153         if (string == NULL)
1154                 return -EINVAL;
1155
1156         *flags = 0;
1157         *neg_flags = 0;
1158         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1159                 bool found = false;
1160                 int i;
1161
1162                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1163                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1164                         const char *comp_name = comp_flags_table[i].cfn_name;
1165
1166                         if (strcmp(name, comp_name) == 0) {
1167                                 *flags |= comp_flag;
1168                                 found = true;
1169                         } else if (strncmp(name, "^", 1) == 0 &&
1170                                    strcmp(name + 1, comp_name) == 0) {
1171                                 *neg_flags |= comp_flag;
1172                                 found = true;
1173                         }
1174                 }
1175                 if (!found) {
1176                         llapi_printf(LLAPI_MSG_ERROR,
1177                                      "%s: component flag '%s' not supported\n",
1178                                      progname, name);
1179                         return -EINVAL;
1180                 }
1181         }
1182
1183         if (!*flags && !*neg_flags)
1184                 return -EINVAL;
1185
1186         /* don't allow to set and exclude the same flag */
1187         if (*flags & *neg_flags)
1188                 return -EINVAL;
1189
1190         return 0;
1191 }
1192
1193 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1194 {
1195         if (string == NULL)
1196                 return -EINVAL;
1197
1198         *state = 0;
1199         *neg_state = 0;
1200
1201         if (strncmp(string, "^", 1) == 0) {
1202                 *neg_state = llapi_layout_string_flags(string + 1);
1203                 if (*neg_state != 0)
1204                         return 0;
1205         } else {
1206                 *state = llapi_layout_string_flags(string);
1207                 if (*state != 0)
1208                         return 0;
1209         }
1210
1211         llapi_printf(LLAPI_MSG_ERROR,
1212                      "%s: mirrored file state '%s' not supported\n",
1213                      progname, string);
1214         return -EINVAL;
1215 }
1216
1217 /**
1218  * struct mirror_args - Command-line arguments for mirror(s).
1219  * @m_count:  Number of mirrors to be created with this layout.
1220  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1221  * @m_layout: Mirror layout.
1222  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1223  * @m_next:   Point to the next node of the list.
1224  *
1225  * Command-line arguments for mirror(s) will be parsed and stored in
1226  * a linked list that consists of this structure.
1227  */
1228 struct mirror_args {
1229         __u32                   m_count;
1230         __u32                   m_flags;
1231         struct llapi_layout     *m_layout;
1232         const char              *m_file;
1233         struct mirror_args      *m_next;
1234 };
1235
1236 static int mirror_sanity_check_flags(struct llapi_layout *layout, void *unused)
1237 {
1238         uint32_t flags;
1239         int rc;
1240
1241         rc = llapi_layout_comp_flags_get(layout, &flags);
1242         if (rc)
1243                 return -errno;
1244
1245         if (flags & LCME_FL_NEG) {
1246                 fprintf(stderr, "error: %s: negative flags are not supported\n",
1247                         progname);
1248                 return -EINVAL;
1249         }
1250
1251         if (flags & LCME_FL_STALE) {
1252                 fprintf(stderr, "error: %s: setting '%s' is not supported\n",
1253                         progname, comp_flags_table[LCME_FL_STALE].cfn_name);
1254                 return -EINVAL;
1255         }
1256
1257         return LLAPI_LAYOUT_ITER_CONT;
1258 }
1259
1260 static inline int mirror_sanity_check_one(struct llapi_layout *layout)
1261 {
1262         uint64_t start, end;
1263         uint64_t pattern;
1264         int rc;
1265
1266         /* LU-10112: do not support dom+flr in phase 1 */
1267         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
1268         if (rc)
1269                 return -errno;
1270
1271         rc = llapi_layout_pattern_get(layout, &pattern);
1272         if (rc)
1273                 return -errno;
1274
1275         if (pattern == LOV_PATTERN_MDT || pattern == LLAPI_LAYOUT_MDT) {
1276                 fprintf(stderr, "error: %s: doesn't support dom+flr for now\n",
1277                         progname);
1278                 return -ENOTSUP;
1279         }
1280
1281         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_LAST);
1282         if (rc)
1283                 return -errno;
1284
1285         rc = llapi_layout_comp_extent_get(layout, &start, &end);
1286         if (rc)
1287                 return -errno;
1288
1289         if (end != LUSTRE_EOF) {
1290                 fprintf(stderr, "error: %s: mirror layout doesn't reach eof\n",
1291                         progname);
1292                 return -EINVAL;
1293         }
1294
1295         rc = llapi_layout_comp_iterate(layout, mirror_sanity_check_flags, NULL);
1296         return rc;
1297 }
1298
1299 /**
1300  * enum mirror_flags - Flags for extending a mirrored file.
1301  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1302  *             in case the victim file(s) contains the same data as the
1303  *             original mirrored file.
1304  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1305  * @MF_COMP_ID: specified component id instead of mirror id
1306  *
1307  * Flags for extending a mirrored file.
1308  */
1309 enum mirror_flags {
1310         MF_NO_VERIFY    = 0x1,
1311         MF_DESTROY      = 0x2,
1312         MF_COMP_ID      = 0x4,
1313 };
1314
1315 /**
1316  * mirror_create_sanity_check() - Check mirror list.
1317  * @list:  A linked list that stores the mirror arguments.
1318  *
1319  * This function does a sanity check on @list for creating
1320  * a mirrored file.
1321  *
1322  * Return: 0 on success or a negative error code on failure.
1323  */
1324 static int mirror_create_sanity_check(const char *fname,
1325                                       struct mirror_args *list)
1326 {
1327         int rc = 0;
1328         bool has_m_file = false;
1329         bool has_m_layout = false;
1330
1331         if (list == NULL)
1332                 return -EINVAL;
1333
1334         if (fname) {
1335                 struct llapi_layout *layout;
1336
1337                 layout = llapi_layout_get_by_path(fname, 0);
1338                 if (!layout) {
1339                         fprintf(stderr,
1340                                 "error: %s: file '%s' couldn't get layout\n",
1341                                 progname, fname);
1342                         return -ENODATA;
1343                 }
1344
1345                 rc = mirror_sanity_check_one(layout);
1346                 llapi_layout_free(layout);
1347
1348                 if (rc)
1349                         return rc;
1350         }
1351
1352         while (list != NULL) {
1353                 if (list->m_file != NULL) {
1354                         has_m_file = true;
1355                         llapi_layout_free(list->m_layout);
1356
1357                         list->m_layout =
1358                                 llapi_layout_get_by_path(list->m_file, 0);
1359                         if (list->m_layout == NULL) {
1360                                 fprintf(stderr,
1361                                         "error: %s: file '%s' has no layout\n",
1362                                         progname, list->m_file);
1363                                 return -ENODATA;
1364                         }
1365                 } else {
1366                         has_m_layout = true;
1367                         if (list->m_layout == NULL) {
1368                                 fprintf(stderr, "error: %s: no mirror layout\n",
1369                                         progname);
1370                                 return -EINVAL;
1371                         }
1372                 }
1373
1374                 rc = mirror_sanity_check_one(list->m_layout);
1375                 if (rc)
1376                         return rc;
1377
1378                 list = list->m_next;
1379         }
1380
1381         if (has_m_file && has_m_layout) {
1382                 fprintf(stderr,
1383                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1384                         progname);
1385                 return -EINVAL;
1386         }
1387
1388         return 0;
1389 }
1390
1391 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1392 {
1393         __u32 mirror_flags = *(__u32 *)cbdata;
1394         uint32_t flags;
1395         int rc;
1396
1397         rc = llapi_layout_comp_flags_get(layout, &flags);
1398         if (rc < 0)
1399                 return rc;
1400
1401         if (!flags) {
1402                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1403                 if (rc)
1404                         return rc;
1405         }
1406
1407         return LLAPI_LAYOUT_ITER_CONT;
1408 }
1409
1410 /**
1411  * mirror_create() - Create a mirrored file.
1412  * @fname:        The file to be created.
1413  * @mirror_list:  A linked list that stores the mirror arguments.
1414  *
1415  * This function creates a mirrored file @fname with the mirror(s)
1416  * from @mirror_list.
1417  *
1418  * Return: 0 on success or a negative error code on failure.
1419  */
1420 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1421 {
1422         struct llapi_layout *layout = NULL;
1423         struct mirror_args *cur_mirror = NULL;
1424         uint16_t mirror_count = 0;
1425         int i = 0;
1426         int rc = 0;
1427
1428         rc = mirror_create_sanity_check(NULL, mirror_list);
1429         if (rc)
1430                 return rc;
1431
1432         cur_mirror = mirror_list;
1433         while (cur_mirror != NULL) {
1434                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1435                                                mirror_set_flags,
1436                                                &cur_mirror->m_flags);
1437                 if (rc) {
1438                         rc = -errno;
1439                         fprintf(stderr, "%s: failed to set mirror flags\n",
1440                                 progname);
1441                         goto error;
1442                 }
1443
1444                 for (i = 0; i < cur_mirror->m_count; i++) {
1445                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1446                         if (rc) {
1447                                 rc = -errno;
1448                                 fprintf(stderr, "error: %s: "
1449                                         "merge layout failed: %s\n",
1450                                         progname, strerror(errno));
1451                                 goto error;
1452                         }
1453                 }
1454                 mirror_count += cur_mirror->m_count;
1455                 cur_mirror = cur_mirror->m_next;
1456         }
1457
1458         if (layout == NULL) {
1459                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1460                 return -EINVAL;
1461         }
1462
1463         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1464         if (rc) {
1465                 rc = -errno;
1466                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1467                         progname, strerror(errno));
1468                 goto error;
1469         }
1470
1471         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1472                                   layout);
1473         if (rc >= 0) {
1474                 close(rc);
1475                 rc = 0;
1476         }
1477
1478 error:
1479         llapi_layout_free(layout);
1480         return rc;
1481 }
1482
1483 /**
1484  * Compare files and check lease on @fd.
1485  *
1486  * \retval bytes number of bytes are the same
1487  */
1488 static ssize_t mirror_file_compare(int fd, int fdv)
1489 {
1490         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1491         void *buf;
1492         ssize_t bytes_done = 0;
1493         ssize_t bytes_read = 0;
1494
1495         buf = malloc(buflen * 2);
1496         if (!buf)
1497                 return -ENOMEM;
1498
1499         while (1) {
1500                 if (!llapi_lease_check(fd)) {
1501                         bytes_done = -EBUSY;
1502                         break;
1503                 }
1504
1505                 bytes_read = read(fd, buf, buflen);
1506                 if (bytes_read <= 0)
1507                         break;
1508
1509                 if (bytes_read != read(fdv, buf + buflen, buflen))
1510                         break;
1511
1512                 /* XXX: should compute the checksum on each buffer and then
1513                  * compare checksum to avoid cache collision */
1514                 if (memcmp(buf, buf + buflen, bytes_read))
1515                         break;
1516
1517                 bytes_done += bytes_read;
1518         }
1519
1520         free(buf);
1521
1522         return bytes_done;
1523 }
1524
1525 static int mirror_extend_file(const char *fname, const char *victim_file,
1526                               enum mirror_flags mirror_flags)
1527 {
1528         int fd = -1;
1529         int fdv = -1;
1530         struct stat stbuf;
1531         struct stat stbuf_v;
1532         struct ll_ioc_lease *data = NULL;
1533         int rc;
1534
1535         fd = open(fname, O_RDWR);
1536         if (fd < 0) {
1537                 error_loc = "open source file";
1538                 rc = -errno;
1539                 goto out;
1540         }
1541
1542         fdv = open(victim_file, O_RDWR);
1543         if (fdv < 0) {
1544                 error_loc = "open target file";
1545                 rc = -errno;
1546                 goto out;
1547         }
1548
1549         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1550                 error_loc = "stat source or target file";
1551                 rc = -errno;
1552                 goto out;
1553         }
1554
1555         if (stbuf.st_dev != stbuf_v.st_dev) {
1556                 error_loc = "stat source and target file";
1557                 rc = -EXDEV;
1558                 goto out;
1559         }
1560
1561         /* mirrors should be of the same size */
1562         if (stbuf.st_size != stbuf_v.st_size) {
1563                 error_loc = "file sizes don't match";
1564                 rc = -EINVAL;
1565                 goto out;
1566         }
1567
1568         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1569         if (rc < 0) {
1570                 error_loc = "cannot get lease";
1571                 goto out;
1572         }
1573
1574         if (!(mirror_flags & MF_NO_VERIFY)) {
1575                 ssize_t ret;
1576                 /* mirrors should have the same contents */
1577                 ret = mirror_file_compare(fd, fdv);
1578                 if (ret != stbuf.st_size) {
1579                         error_loc = "file busy or contents don't match";
1580                         rc = ret < 0 ? ret : -EINVAL;
1581                         goto out;
1582                 }
1583         }
1584
1585         /* Get rid of caching pages from clients */
1586         rc = llapi_file_flush(fd);
1587         if (rc < 0) {
1588                 error_loc = "cannot get data version";
1589                 goto out;
1590         }
1591
1592         rc = llapi_file_flush(fdv);
1593         if (rc < 0) {
1594                 error_loc = "cannot get data version";
1595                 goto out;
1596
1597         }
1598
1599         /* Make sure we keep original atime/mtime values */
1600         rc = migrate_copy_timestamps(fd, fdv);
1601         if (rc < 0) {
1602                 error_loc = "cannot copy timestamp";
1603                 goto out;
1604         }
1605
1606         /* Atomically put lease, merge layouts and close. */
1607         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1608         if (!data) {
1609                 error_loc = "memory allocation";
1610                 goto out;
1611         }
1612         data->lil_mode = LL_LEASE_UNLCK;
1613         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1614         data->lil_count = 1;
1615         data->lil_ids[0] = fdv;
1616         rc = llapi_lease_set(fd, data);
1617         if (rc < 0) {
1618                 error_loc = "cannot merge layout";
1619                 goto out;
1620         } else if (rc == 0) {
1621                 rc = -EBUSY;
1622                 error_loc = "lost lease lock";
1623                 goto out;
1624         }
1625         rc = 0;
1626
1627 out:
1628         if (data)
1629                 free(data);
1630         if (fd >= 0)
1631                 close(fd);
1632         if (fdv >= 0)
1633                 close(fdv);
1634         if (!rc)
1635                 (void) unlink(victim_file);
1636         if (rc < 0)
1637                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1638                         progname, fname, error_loc, strerror(-rc));
1639         return rc;
1640 }
1641
1642 static int mirror_extend_layout(char *name, struct llapi_layout *layout)
1643 {
1644         struct ll_ioc_lease *data = NULL;
1645         int fd = -1;
1646         int fdv = -1;
1647         int rc;
1648
1649         rc = migrate_open_files(name, 0, NULL, layout, &fd, &fdv);
1650         if (rc < 0)
1651                 goto out;
1652
1653         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1654         if (rc < 0) {
1655                 error_loc = "cannot get lease";
1656                 goto out;
1657         }
1658
1659         rc = migrate_nonblock(fd, fdv);
1660         if (rc < 0) {
1661                 llapi_lease_release(fd);
1662                 goto out;
1663         }
1664
1665         /* Atomically put lease, merge layouts and close. */
1666         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1667         if (!data) {
1668                 error_loc = "memory allocation";
1669                 goto out;
1670         }
1671         data->lil_mode = LL_LEASE_UNLCK;
1672         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1673         data->lil_count = 1;
1674         data->lil_ids[0] = fdv;
1675         rc = llapi_lease_set(fd, data);
1676         if (rc < 0) {
1677                 error_loc = "cannot merge layout";
1678                 goto out;
1679         } else if (rc == 0) {
1680                 rc = -EBUSY;
1681                 error_loc = "lost lease lock";
1682                 goto out;
1683         }
1684         rc = 0;
1685
1686 out:
1687         if (data)
1688                 free(data);
1689         if (fd >= 0)
1690                 close(fd);
1691         if (fdv >= 0)
1692                 close(fdv);
1693         if (rc < 0)
1694                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1695                         progname, name, error_loc, strerror(-rc));
1696         return rc;
1697 }
1698
1699 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1700                          enum mirror_flags mirror_flags)
1701 {
1702         int rc;
1703
1704         rc = mirror_create_sanity_check(fname, mirror_list);
1705         if (rc)
1706                 return rc;
1707
1708         while (mirror_list) {
1709                 if (mirror_list->m_file != NULL) {
1710                         rc = mirror_extend_file(fname, mirror_list->m_file,
1711                                                 mirror_flags);
1712                 } else {
1713                         __u32 mirror_count = mirror_list->m_count;
1714
1715                         while (mirror_count > 0) {
1716                                 rc = mirror_extend_layout(fname,
1717                                                         mirror_list->m_layout);
1718                                 if (rc)
1719                                         break;
1720
1721                                 --mirror_count;
1722                         }
1723                 }
1724                 if (rc)
1725                         break;
1726
1727                 mirror_list = mirror_list->m_next;
1728         }
1729
1730         return rc;
1731 }
1732
1733 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
1734 {
1735         uint32_t id;
1736         int rc;
1737
1738         rc = llapi_layout_mirror_id_get(layout, &id);
1739         if (rc < 0)
1740                 return rc;
1741
1742         if ((__u16)id == *(__u16 *)cbdata)
1743                 return LLAPI_LAYOUT_ITER_STOP;
1744
1745         return LLAPI_LAYOUT_ITER_CONT;
1746 }
1747
1748 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
1749 {
1750         uint32_t id;
1751         int rc;
1752
1753         rc = llapi_layout_comp_id_get(layout, &id);
1754         if (rc < 0)
1755                 return rc;
1756
1757         if (id == *(__u32 *)cbdata)
1758                 return LLAPI_LAYOUT_ITER_STOP;
1759
1760         return LLAPI_LAYOUT_ITER_CONT;
1761 }
1762 static int mirror_split(const char *fname, __u32 id,
1763                         enum mirror_flags mflags, const char *victim_file)
1764 {
1765         struct llapi_layout *layout;
1766         char parent[PATH_MAX];
1767         char victim[PATH_MAX];
1768         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
1769         char *ptr;
1770         struct ll_ioc_lease *data;
1771         uint16_t mirror_count;
1772         int mdt_index;
1773         int fd, fdv;
1774         int rc;
1775
1776         /* check fname contains mirror with mirror_id/comp_id */
1777         layout = llapi_layout_get_by_path(fname, 0);
1778         if (!layout) {
1779                 fprintf(stderr,
1780                         "error %s: file '%s' couldn't get layout\n",
1781                         progname, fname);
1782                 return -EINVAL;
1783         }
1784
1785         rc = mirror_sanity_check_one(layout);
1786         if (rc)
1787                 goto free_layout;
1788
1789         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
1790         if (rc) {
1791                 fprintf(stderr,
1792                         "error %s: file '%s' couldn't get mirror count\n",
1793                         progname, fname);
1794                 goto free_layout;
1795         }
1796         if (mirror_count < 2) {
1797                 fprintf(stderr,
1798                         "error %s: file '%s' has %d component, cannot split\n",
1799                         progname, fname, mirror_count);
1800                 goto free_layout;
1801         }
1802
1803         if (mflags & MF_COMP_ID) {
1804                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
1805                 id = mirror_id_of(id);
1806         } else {
1807                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
1808         }
1809         if (rc < 0) {
1810                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
1811                         progname, fname);
1812                 goto free_layout;
1813         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
1814                 fprintf(stderr,
1815                      "error %s: file '%s' does not contain mirror with id %u\n",
1816                         progname, fname, id);
1817                 goto free_layout;
1818         }
1819
1820         fd = open(fname, O_RDWR);
1821         if (fd < 0) {
1822                 fprintf(stderr,
1823                         "error %s: open file '%s' failed: %s\n",
1824                         progname, fname, strerror(errno));
1825                 goto free_layout;
1826         }
1827
1828         /* get victim file directory pathname */
1829         if (strlen(fname) > sizeof(parent) - 1) {
1830                 fprintf(stderr, "error %s: file name of '%s' too long\n",
1831                         progname, fname);
1832                 rc = -ERANGE;
1833                 goto close_fd;
1834         }
1835         strncpy(parent, fname, sizeof(parent));
1836         ptr = strrchr(parent, '/');
1837         if (ptr == NULL) {
1838                 if (getcwd(parent, sizeof(parent)) == NULL) {
1839                         fprintf(stderr, "error %s: getcwd failed: %s\n",
1840                                 progname, strerror(errno));
1841                         rc = -errno;
1842                         goto close_fd;
1843                 }
1844         } else {
1845                 if (ptr == parent)
1846                         ptr = parent + 1;
1847                 *ptr = '\0';
1848         }
1849
1850         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
1851         if (rc < 0) {
1852                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
1853                         progname, fname);
1854                 goto close_fd;
1855         }
1856
1857         if (victim_file == NULL) {
1858                 /* use a temp file to store the splitted layout */
1859                 if (mflags & MF_DESTROY) {
1860                         fdv = llapi_create_volatile_idx(parent, mdt_index,
1861                                                         O_LOV_DELAY_CREATE);
1862                 } else {
1863                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
1864                                  fname, id);
1865                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
1866                 }
1867         } else {
1868                 /* user specified victim file */
1869                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
1870         }
1871
1872         if (fdv < 0) {
1873                 fprintf(stderr,
1874                         "error %s: create victim file failed: %s\n",
1875                         progname, strerror(errno));
1876                 goto close_fd;
1877         }
1878
1879         /* get lease lock of fname */
1880         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
1881         if (rc < 0) {
1882                 fprintf(stderr,
1883                         "error %s: cannot get lease of file '%s': %d\n",
1884                         progname, fname, rc);
1885                 goto close_victim;
1886         }
1887
1888         /* Atomatically put lease, split layouts and close. */
1889         data = malloc(offsetof(typeof(*data), lil_ids[2]));
1890         if (!data) {
1891                 rc = -ENOMEM;
1892                 goto close_victim;
1893         }
1894
1895         data->lil_mode = LL_LEASE_UNLCK;
1896         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
1897         data->lil_count = 2;
1898         data->lil_ids[0] = fdv;
1899         data->lil_ids[1] = id;
1900         rc = llapi_lease_set(fd, data);
1901         if (rc <= 0) {
1902                 if (rc == 0) /* lost lease lock */
1903                         rc = -EBUSY;
1904                 fprintf(stderr,
1905                         "error %s: cannot split '%s': %s\n",
1906                         progname, fname, strerror(-rc));
1907         } else {
1908                 rc = 0;
1909         }
1910         free(data);
1911
1912 close_victim:
1913         close(fdv);
1914 close_fd:
1915         close(fd);
1916 free_layout:
1917         llapi_layout_free(layout);
1918         return rc;
1919 }
1920
1921 /**
1922  * Parse a string containing an target index list into an array of integers.
1923  *
1924  * The input string contains a comma delimited list of individual
1925  * indices and ranges, for example "1,2-4,7". Add the indices into the
1926  * \a tgts array and remove duplicates.
1927  *
1928  * \param[out] tgts    array to store indices in
1929  * \param[in] size     size of \a tgts array
1930  * \param[in] offset   starting index in \a tgts
1931  * \param[in] arg      string containing OST index list
1932  *
1933  * \retval positive    number of indices in \a tgts
1934  * \retval -EINVAL     unable to parse \a arg
1935  */
1936 static int parse_targets(__u32 *tgts, int size, int offset, char *arg)
1937 {
1938         int rc;
1939         int nr = offset;
1940         int slots = size - offset;
1941         char *ptr = NULL;
1942         bool end_of_loop;
1943
1944         if (arg == NULL)
1945                 return -EINVAL;
1946
1947         end_of_loop = false;
1948         while (!end_of_loop) {
1949                 int start_index;
1950                 int end_index;
1951                 int i;
1952                 char *endptr = NULL;
1953
1954                 rc = -EINVAL;
1955
1956                 ptr = strchrnul(arg, ',');
1957
1958                 end_of_loop = *ptr == '\0';
1959                 *ptr = '\0';
1960
1961                 start_index = strtol(arg, &endptr, 0);
1962                 if (endptr == arg) /* no data at all */
1963                         break;
1964                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
1965                         break;
1966
1967                 end_index = start_index;
1968                 if (*endptr == '-') {
1969                         end_index = strtol(endptr + 1, &endptr, 0);
1970                         if (*endptr != '\0')
1971                                 break;
1972                         if (end_index < start_index)
1973                                 break;
1974                 }
1975
1976                 for (i = start_index; i <= end_index && slots > 0; i++) {
1977                         int j;
1978
1979                         /* remove duplicate */
1980                         for (j = 0; j < offset; j++) {
1981                                 if (tgts[j] == i)
1982                                         break;
1983                         }
1984                         if (j == offset) { /* no duplicate */
1985                                 tgts[nr++] = i;
1986                                 --slots;
1987                         }
1988                 }
1989                 if (slots == 0 && i < end_index)
1990                         break;
1991
1992                 *ptr = ',';
1993                 arg = ++ptr;
1994                 offset = nr;
1995                 rc = 0;
1996         }
1997         if (!end_of_loop && ptr != NULL)
1998                 *ptr = ',';
1999
2000         return rc < 0 ? rc : nr;
2001 }
2002
2003 struct lfs_setstripe_args {
2004         unsigned long long       lsa_comp_end;
2005         unsigned long long       lsa_stripe_size;
2006         long long                lsa_stripe_count;
2007         long long                lsa_stripe_off;
2008         __u32                    lsa_comp_flags;
2009         __u32                    lsa_comp_neg_flags;
2010         unsigned long long       lsa_pattern;
2011         unsigned int             lsa_mirror_count;
2012         int                      lsa_nr_tgts;
2013         bool                     lsa_first_comp;
2014         __u32                   *lsa_tgts;
2015         char                    *lsa_pool_name;
2016 };
2017
2018 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2019 {
2020         unsigned int mirror_count = lsa->lsa_mirror_count;
2021         bool first_comp = lsa->lsa_first_comp;
2022
2023         memset(lsa, 0, sizeof(*lsa));
2024
2025         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2026         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2027         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2028         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2029         lsa->lsa_pool_name = NULL;
2030
2031         lsa->lsa_mirror_count = mirror_count;
2032         lsa->lsa_first_comp = first_comp;
2033 }
2034
2035 /**
2036  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2037  * @lsa: Stripe options to be initialized and inherited.
2038  *
2039  * This function initializes stripe options in @lsa and inherit
2040  * stripe_size, stripe_count and OST pool_name options.
2041  *
2042  * Return: void.
2043  */
2044 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2045 {
2046         unsigned long long stripe_size;
2047         long long stripe_count;
2048         char *pool_name = NULL;
2049
2050         stripe_size = lsa->lsa_stripe_size;
2051         stripe_count = lsa->lsa_stripe_count;
2052         pool_name = lsa->lsa_pool_name;
2053
2054         setstripe_args_init(lsa);
2055
2056         lsa->lsa_stripe_size = stripe_size;
2057         lsa->lsa_stripe_count = stripe_count;
2058         lsa->lsa_pool_name = pool_name;
2059 }
2060
2061 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2062 {
2063         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2064                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2065                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2066                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2067                 lsa->lsa_pool_name != NULL ||
2068                 lsa->lsa_comp_end != 0);
2069 }
2070
2071 /**
2072  * comp_args_to_layout() - Create or extend a composite layout.
2073  * @composite:       Pointer to the composite layout.
2074  * @lsa:             Stripe options for the new component.
2075  *
2076  * This function creates or extends a composite layout by adding a new
2077  * component with stripe options from @lsa.
2078  *
2079  * Return: 0 on success or an error code on failure.
2080  */
2081 static int comp_args_to_layout(struct llapi_layout **composite,
2082                                struct lfs_setstripe_args *lsa,
2083                                bool set_extent)
2084 {
2085         struct llapi_layout *layout = *composite;
2086         uint64_t prev_end = 0;
2087         int i = 0, rc;
2088
2089         if (layout == NULL) {
2090                 layout = llapi_layout_alloc();
2091                 if (layout == NULL) {
2092                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2093                                 strerror(errno));
2094                         return -ENOMEM;
2095                 }
2096                 *composite = layout;
2097         } else {
2098                 uint64_t start;
2099
2100                 /* Get current component extent, current component
2101                  * must be the tail component. */
2102                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2103                 if (rc) {
2104                         fprintf(stderr, "Get comp extent failed. %s\n",
2105                                 strerror(errno));
2106                         return rc;
2107                 }
2108
2109                 if (lsa->lsa_first_comp)
2110                         prev_end = 0;
2111
2112                 if (lsa->lsa_first_comp)
2113                         rc = llapi_layout_add_first_comp(layout);
2114                 else
2115                         rc = llapi_layout_comp_add(layout);
2116                 if (rc) {
2117                         fprintf(stderr, "Add component failed. %s\n",
2118                                 strerror(errno));
2119                         return rc;
2120                 }
2121         }
2122         /* reset lsa_first_comp */
2123         lsa->lsa_first_comp = false;
2124
2125         if (set_extent) {
2126                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2127                                                   lsa->lsa_comp_end);
2128                 if (rc) {
2129                         fprintf(stderr, "Set extent [%lu, %llu) failed. %s\n",
2130                                 prev_end, lsa->lsa_comp_end, strerror(errno));
2131                         return rc;
2132                 }
2133         }
2134
2135         /* Data-on-MDT component setting */
2136         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2137                 /* In case of Data-on-MDT patterns the only extra option
2138                  * applicable is stripe size option. */
2139                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2140                         fprintf(stderr, "Option 'stripe-count' can't be "
2141                                 "specified with Data-on-MDT component: %lld\n",
2142                                 lsa->lsa_stripe_count);
2143                         return -EINVAL;
2144                 }
2145                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT) {
2146                         fprintf(stderr, "Option 'stripe-size' can't be "
2147                                 "specified with Data-on-MDT component: %llu\n",
2148                                 lsa->lsa_stripe_size);
2149                         return -EINVAL;
2150                 }
2151                 if (lsa->lsa_nr_tgts != 0) {
2152                         fprintf(stderr, "Option 'ost-list' can't be specified "
2153                                 "with Data-on-MDT component: '%i'\n",
2154                                 lsa->lsa_nr_tgts);
2155                         return -EINVAL;
2156                 }
2157                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2158                         fprintf(stderr, "Option 'stripe-offset' can't be "
2159                                 "specified with Data-on-MDT component: %lld\n",
2160                                 lsa->lsa_stripe_off);
2161                         return -EINVAL;
2162                 }
2163                 if (lsa->lsa_pool_name != 0) {
2164                         fprintf(stderr, "Option 'pool' can't be specified "
2165                                 "with Data-on-MDT component: '%s'\n",
2166                                 lsa->lsa_pool_name);
2167                         return -EINVAL;
2168                 }
2169
2170                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2171                 if (rc) {
2172                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2173                                 lsa->lsa_pattern, strerror(errno));
2174                         return rc;
2175                 }
2176                 /* Data-on-MDT component has always single stripe up to end */
2177                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2178         }
2179
2180         rc = llapi_layout_stripe_size_set(layout, lsa->lsa_stripe_size);
2181         if (rc) {
2182                 fprintf(stderr, "Set stripe size %llu failed: %s\n",
2183                         lsa->lsa_stripe_size, strerror(errno));
2184                 return rc;
2185         }
2186
2187         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2188         if (rc) {
2189                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2190                         lsa->lsa_stripe_count, strerror(errno));
2191                 return rc;
2192         }
2193
2194         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2195         if (rc) {
2196                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2197                         lsa->lsa_comp_flags, strerror(errno));
2198                 return rc;
2199         }
2200
2201         if (lsa->lsa_pool_name != NULL) {
2202                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2203                 if (rc) {
2204                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2205                                 lsa->lsa_pool_name, strerror(errno));
2206                         return rc;
2207                 }
2208         } else {
2209                 rc = llapi_layout_pool_name_set(layout, "");
2210                 if (rc) {
2211                         fprintf(stderr, "Clear pool name failed: %s\n",
2212                                 strerror(errno));
2213                         return rc;
2214                 }
2215         }
2216
2217         if (lsa->lsa_nr_tgts > 0) {
2218                 if (lsa->lsa_stripe_count > 0 &&
2219                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2220                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2221                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2222                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2223                                 lsa->lsa_stripe_count, lsa->lsa_nr_tgts);
2224                         return -EINVAL;
2225                 }
2226                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2227                         rc = llapi_layout_ost_index_set(layout, i,
2228                                                         lsa->lsa_tgts[i]);
2229                         if (rc)
2230                                 break;
2231                 }
2232         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2233                    lsa->lsa_stripe_off != -1) {
2234                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2235         }
2236         if (rc) {
2237                 fprintf(stderr, "Set ost index %d failed. %s\n",
2238                         i, strerror(errno));
2239                 return rc;
2240         }
2241
2242         return 0;
2243 }
2244
2245 static int build_component(struct llapi_layout **layout,
2246                            struct lfs_setstripe_args *lsa, bool set_extent)
2247 {
2248         int rc;
2249
2250         rc = comp_args_to_layout(layout, lsa, set_extent);
2251         if (rc)
2252                 return rc;
2253
2254         if (lsa->lsa_mirror_count > 0) {
2255                 rc = llapi_layout_mirror_count_set(*layout,
2256                                                    lsa->lsa_mirror_count);
2257                 if (rc)
2258                         return rc;
2259
2260                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2261                 if (rc)
2262                         return rc;
2263                 lsa->lsa_mirror_count = 0;
2264         }
2265
2266         return rc;
2267 }
2268
2269 static int build_layout_from_yaml_node(struct cYAML *node,
2270                                        struct llapi_layout **layout,
2271                                        struct lfs_setstripe_args *lsa,
2272                                        __u32 *osts)
2273 {
2274         char *string;
2275         int rc = 0;
2276
2277         while (node) {
2278                 if (node->cy_type == CYAML_TYPE_OBJECT) {
2279                         /* go deep to sub blocks */
2280                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2281                                                          lsa, osts);
2282                         if (rc)
2283                                 return rc;
2284                 } else {
2285                         if (node->cy_string == NULL)
2286                                 return -EINVAL;
2287
2288                         string = node->cy_string;
2289                         /* skip leading lmm_ if present, to simplify parsing */
2290                         if (strncmp(string, "lmm_", 4) == 0)
2291                                 string += 4;
2292
2293                         if (node->cy_type == CYAML_TYPE_STRING) {
2294                                 if (!strcmp(string, "lcme_extent.e_end")) {
2295                                         if (!strcmp(node->cy_valuestring, "EOF") ||
2296                                             !strcmp(node->cy_valuestring, "eof"))
2297                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2298                                 } else if (!strcmp(string, "pool")) {
2299                                         lsa->lsa_pool_name = node->cy_valuestring;
2300                                 } else if (!strcmp(string, "pattern")) {
2301                                         if (!strcmp(node->cy_valuestring, "mdt"))
2302                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2303                                 } else if (!strcmp(string, "lcme_flags")) {
2304                                         rc = comp_str2flags(node->cy_valuestring,
2305                                                             &lsa->lsa_comp_flags,
2306                                                             &lsa->lsa_comp_neg_flags);
2307                                         if (rc)
2308                                                 return rc;
2309                                         /* Only template flags have meaning in
2310                                          * the layout for a new file
2311                                          */
2312                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
2313                                 }
2314                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2315                                 if (!strcmp(string, "lcm_mirror_count")) {
2316                                         lsa->lsa_mirror_count = node->cy_valueint;
2317                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
2318                                         if (node->cy_valueint != 0 || *layout != NULL) {
2319                                                 rc = build_component(layout, lsa, true);
2320                                                 if (rc)
2321                                                         return rc;
2322                                         }
2323
2324                                         if (node->cy_valueint == 0)
2325                                                 lsa->lsa_first_comp = true;
2326
2327                                         /* initialize lsa */
2328                                         setstripe_args_init(lsa);
2329                                         lsa->lsa_tgts = osts;
2330                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
2331                                         if (node->cy_valueint == -1)
2332                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2333                                         else
2334                                                 lsa->lsa_comp_end = node->cy_valueint;
2335                                 } else if (!strcmp(string, "stripe_count")) {
2336                                         lsa->lsa_stripe_count = node->cy_valueint;
2337                                 } else if (!strcmp(string, "stripe_size")) {
2338                                         lsa->lsa_stripe_size = node->cy_valueint;
2339                                 } else if (!strcmp(string, "stripe_offset")) {
2340                                         lsa->lsa_stripe_off = node->cy_valueint;
2341                                 } else if (!strcmp(string, "l_ost_idx")) {
2342                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
2343                                         lsa->lsa_nr_tgts++;
2344                                 }
2345                         }
2346                 }
2347                 node = node->cy_next;
2348         }
2349
2350         return rc;
2351 }
2352
2353 static int lfs_comp_create_from_yaml(char *template,
2354                                      struct llapi_layout **layout,
2355                                      struct lfs_setstripe_args *lsa,
2356                                      __u32 *osts)
2357 {
2358         struct cYAML *tree = NULL, *err_rc = NULL;
2359         int rc = 0;
2360
2361         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
2362         if (!tree) {
2363                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
2364                         progname, template);
2365                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
2366                                   "can't parse", &err_rc);
2367                 cYAML_print_tree2file(stderr, err_rc);
2368                 cYAML_free_tree(err_rc);
2369                 rc = -EINVAL;
2370                 goto err;
2371         }
2372
2373         /* initialize lsa for plain file */
2374         setstripe_args_init(lsa);
2375         lsa->lsa_tgts = osts;
2376
2377         rc = build_layout_from_yaml_node(tree, layout, lsa, osts);
2378         if (rc) {
2379                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
2380                         progname, template);
2381                 goto err;
2382         } else {
2383                 rc = build_component(layout, lsa, *layout != NULL);
2384         }
2385         /* clean clean lsa */
2386         setstripe_args_init(lsa);
2387
2388 err:
2389         if (tree)
2390                 cYAML_free_tree(tree);
2391         return rc;
2392 }
2393
2394 /* In 'lfs setstripe --component-add' mode, we need to fetch the extent
2395  * end of the last component in the existing file, and adjust the
2396  * first extent start of the components to be added accordingly. */
2397 static int adjust_first_extent(char *fname, struct llapi_layout *layout)
2398 {
2399         struct llapi_layout *head;
2400         uint64_t start, end, stripe_size, prev_end = 0;
2401         int rc;
2402
2403         if (layout == NULL) {
2404                 fprintf(stderr,
2405                         "%s setstripe: layout must be specified\n",
2406                         progname);
2407                 return -EINVAL;
2408         }
2409
2410         errno = 0;
2411         head = llapi_layout_get_by_path(fname, 0);
2412         if (head == NULL) {
2413                 fprintf(stderr,
2414                         "%s setstripe: cannot read layout from '%s': %s\n",
2415                         progname, fname, strerror(errno));
2416                 return -EINVAL;
2417         } else if (errno == ENODATA) {
2418                 /* file without LOVEA, this component-add will be turned
2419                  * into a component-create. */
2420                 llapi_layout_free(head);
2421                 return -ENODATA;
2422         } else if (!llapi_layout_is_composite(head)) {
2423                 fprintf(stderr, "%s setstripe: '%s' not a composite file\n",
2424                         progname, fname);
2425                 llapi_layout_free(head);
2426                 return -EINVAL;
2427         }
2428
2429         rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
2430         if (rc) {
2431                 fprintf(stderr, "%s setstripe: cannot get prev extent: %s\n",
2432                         progname, strerror(errno));
2433                 llapi_layout_free(head);
2434                 return rc;
2435         }
2436
2437         llapi_layout_free(head);
2438
2439         /* Make sure we use the first component of the layout to be added. */
2440         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
2441         if (rc < 0) {
2442                 fprintf(stderr,
2443                         "%s setstripe: cannot move component cursor: %s\n",
2444                         progname, strerror(errno));
2445                 return rc;
2446         }
2447
2448         rc = llapi_layout_comp_extent_get(layout, &start, &end);
2449         if (rc) {
2450                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2451                         progname, strerror(errno));
2452                 return rc;
2453         }
2454
2455         if (start > prev_end || end <= prev_end) {
2456                 fprintf(stderr,
2457                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
2458                         progname, start, end, prev_end);
2459                 return -EINVAL;
2460         }
2461
2462         rc = llapi_layout_stripe_size_get(layout, &stripe_size);
2463         if (rc) {
2464                 fprintf(stderr, "%s setstripe: cannot get stripe size: %s\n",
2465                         progname, strerror(errno));
2466                 return rc;
2467         }
2468
2469         if (stripe_size != LLAPI_LAYOUT_DEFAULT &&
2470             (prev_end & (stripe_size - 1))) {
2471                 fprintf(stderr,
2472                         "%s setstripe: stripe size %lu not aligned with %lu\n",
2473                         progname, stripe_size, prev_end);
2474                 return -EINVAL;
2475         }
2476
2477         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
2478         if (rc) {
2479                 fprintf(stderr,
2480                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
2481                         progname, prev_end, end, strerror(errno));
2482                 return rc;
2483         }
2484
2485         return 0;
2486 }
2487
2488 static inline bool arg_is_eof(char *arg)
2489 {
2490         return !strncmp(arg, "-1", strlen("-1")) ||
2491                !strncmp(arg, "EOF", strlen("EOF")) ||
2492                !strncmp(arg, "eof", strlen("eof"));
2493 }
2494
2495 /**
2496  * lfs_mirror_alloc() - Allocate a mirror argument structure.
2497  *
2498  * Return: Valid mirror_args pointer on success and
2499  *         NULL if memory allocation fails.
2500  */
2501 static struct mirror_args *lfs_mirror_alloc(void)
2502 {
2503         struct mirror_args *mirror = NULL;
2504
2505         while (1) {
2506                 mirror = calloc(1, sizeof(*mirror));
2507                 if (mirror != NULL)
2508                         break;
2509
2510                 sleep(1);
2511         }
2512
2513         return mirror;
2514 }
2515
2516 /**
2517  * lfs_mirror_free() - Free memory allocated for a mirror argument
2518  *                     structure.
2519  * @mirror: Previously allocated mirror argument structure by
2520  *          lfs_mirror_alloc().
2521  *
2522  * Free memory allocated for @mirror.
2523  *
2524  * Return: void.
2525  */
2526 static void lfs_mirror_free(struct mirror_args *mirror)
2527 {
2528         if (mirror->m_layout != NULL)
2529                 llapi_layout_free(mirror->m_layout);
2530         free(mirror);
2531 }
2532
2533 /**
2534  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
2535  * @mirror_list: Previously allocated mirror list.
2536  *
2537  * Free memory allocated for @mirror_list.
2538  *
2539  * Return: void.
2540  */
2541 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
2542 {
2543         struct mirror_args *next_mirror = NULL;
2544
2545         while (mirror_list != NULL) {
2546                 next_mirror = mirror_list->m_next;
2547                 lfs_mirror_free(mirror_list);
2548                 mirror_list = next_mirror;
2549         }
2550 }
2551
2552 enum {
2553         LFS_POOL_OPT = 3,
2554         LFS_COMP_COUNT_OPT,
2555         LFS_COMP_START_OPT,
2556         LFS_COMP_FLAGS_OPT,
2557         LFS_COMP_DEL_OPT,
2558         LFS_COMP_SET_OPT,
2559         LFS_COMP_ADD_OPT,
2560         LFS_COMP_NO_VERIFY_OPT,
2561         LFS_PROJID_OPT,
2562         LFS_MIRROR_FLAGS_OPT,
2563         LFS_MIRROR_ID_OPT,
2564         LFS_MIRROR_STATE_OPT,
2565         LFS_LAYOUT_COPY,
2566         LFS_MIRROR_INDEX_OPT,
2567 };
2568
2569 /* functions */
2570 static int lfs_setstripe_internal(int argc, char **argv,
2571                                   enum setstripe_origin opc)
2572 {
2573         struct lfs_setstripe_args        lsa = { 0 };
2574         struct llapi_stripe_param       *param = NULL;
2575         struct find_param                migrate_mdt_param = {
2576                 .fp_max_depth = -1,
2577                 .fp_mdt_index = -1,
2578         };
2579         char                            *fname;
2580         int                              result = 0;
2581         int                              result2 = 0;
2582         char                            *end;
2583         int                              c;
2584         int                              delete = 0;
2585         unsigned long long               size_units = 1;
2586         bool                             migrate_mode = false;
2587         bool                             migrate_mdt_mode = false;
2588         bool                             migration_block = false;
2589         __u64                            migration_flags = 0;
2590         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
2591         int                              comp_del = 0, comp_set = 0;
2592         int                              comp_add = 0;
2593         __u32                            comp_id = 0;
2594         struct llapi_layout             *layout = NULL;
2595         struct llapi_layout             **lpp = &layout;
2596         bool                             mirror_mode = false;
2597         bool                             has_m_file = false;
2598         __u32                            mirror_count = 0;
2599         enum mirror_flags                mirror_flags = 0;
2600         struct mirror_args              *mirror_list = NULL;
2601         struct mirror_args              *new_mirror = NULL;
2602         struct mirror_args              *last_mirror = NULL;
2603         __u16                            mirror_id = 0;
2604         char                             cmd[PATH_MAX];
2605         bool from_yaml = false;
2606         bool from_copy = false;
2607         char *template = NULL;
2608
2609         struct option long_opts[] = {
2610 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
2611 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
2612         /* --block is only valid in migrate mode */
2613         { .val = 'b',   .name = "block",        .has_arg = no_argument },
2614         { .val = LFS_COMP_ADD_OPT,
2615                         .name = "comp-add",     .has_arg = no_argument },
2616         { .val = LFS_COMP_ADD_OPT,
2617                         .name = "component-add", .has_arg = no_argument },
2618         { .val = LFS_COMP_DEL_OPT,
2619                         .name = "comp-del",     .has_arg = no_argument },
2620         { .val = LFS_COMP_DEL_OPT,
2621                         .name = "component-del", .has_arg = no_argument },
2622         { .val = LFS_COMP_FLAGS_OPT,
2623                         .name = "comp-flags",   .has_arg = required_argument },
2624         { .val = LFS_COMP_FLAGS_OPT,
2625                         .name = "component-flags",
2626                                                 .has_arg = required_argument },
2627         { .val = LFS_COMP_SET_OPT,
2628                         .name = "comp-set",     .has_arg = no_argument },
2629         { .val = LFS_COMP_SET_OPT,
2630                         .name = "component-set",
2631                                                 .has_arg = no_argument},
2632         { .val = LFS_COMP_NO_VERIFY_OPT,
2633                         .name = "no-verify",    .has_arg = no_argument},
2634         { .val = LFS_MIRROR_FLAGS_OPT,
2635                         .name = "flags",        .has_arg = required_argument},
2636         { .val = LFS_MIRROR_ID_OPT,
2637                         .name = "mirror-id",    .has_arg = required_argument},
2638         { .val = LFS_LAYOUT_COPY,
2639                         .name = "copy",         .has_arg = required_argument},
2640         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
2641         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
2642         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
2643 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
2644         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
2645         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
2646         /* --non-direct is only valid in migrate mode */
2647         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
2648         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
2649         { .val = 'E',   .name = "component-end",
2650                                                 .has_arg = required_argument},
2651         { .val = 'f',   .name = "file",         .has_arg = required_argument },
2652 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
2653 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
2654 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
2655 /* find { .val = 'h',   .name = "help",         .has_arg = no_argument }, */
2656         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
2657         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
2658         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
2659         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
2660         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
2661         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
2662         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
2663         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
2664         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
2665         /* --non-block is only valid in migrate mode */
2666         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
2667         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
2668         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
2669 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
2670         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
2671         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
2672 #endif
2673         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
2674 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
2675 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
2676 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
2677 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
2678         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
2679         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
2680 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
2681 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
2682 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
2683 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
2684         /* --verbose is only valid in migrate mode */
2685         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
2686         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
2687         { .name = NULL } };
2688
2689         setstripe_args_init(&lsa);
2690
2691         migrate_mode = (opc == SO_MIGRATE);
2692         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
2693
2694         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
2695         progname = cmd;
2696         while ((c = getopt_long(argc, argv,
2697                                 "bc:dDE:f:H:i:I:m:N::no:p:L:s:S:vy:", long_opts,
2698                                 NULL)) >= 0) {
2699                 switch (c) {
2700                 case 0:
2701                         /* Long options. */
2702                         break;
2703                 case LFS_COMP_ADD_OPT:
2704                         comp_add = 1;
2705                         break;
2706                 case LFS_COMP_DEL_OPT:
2707                         comp_del = 1;
2708                         break;
2709                 case LFS_COMP_FLAGS_OPT:
2710                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
2711                                                 &lsa.lsa_comp_neg_flags);
2712                         if (result != 0)
2713                                 goto usage_error;
2714                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
2715                                 fprintf(stderr, "%s: inverted flags are not supported\n",
2716                                         progname);
2717                                 goto usage_error;
2718                         }
2719                         if (lsa.lsa_comp_neg_flags & LCME_FL_STALE) {
2720                                 fprintf(stderr,
2721                                         "%s: cannot clear 'stale' flags from component. Please use lfs-mirror-resync(1) instead\n",
2722                                         progname);
2723                                 result = -EINVAL;
2724                                 goto error;
2725                         }
2726
2727                         break;
2728                 case LFS_COMP_SET_OPT:
2729                         comp_set = 1;
2730                         break;
2731                 case LFS_COMP_NO_VERIFY_OPT:
2732                         mirror_flags |= MF_NO_VERIFY;
2733                         break;
2734                 case LFS_MIRROR_ID_OPT:
2735                         mirror_id = strtoul(optarg, &end, 0);
2736                         if (*end != '\0' || mirror_id == 0) {
2737                                 fprintf(stderr,
2738                                         "%s %s: invalid mirror ID '%s'\n",
2739                                         progname, argv[0], optarg);
2740                                 goto usage_error;
2741                         }
2742                         break;
2743                 case LFS_MIRROR_FLAGS_OPT: {
2744                         __u32 flags;
2745
2746                         if (!mirror_mode || !last_mirror) {
2747                                 fprintf(stderr, "error: %s: --flags must be specified with --mirror-count|-N option\n",
2748                                         progname);
2749                                 goto usage_error;
2750                         }
2751
2752                         result = comp_str2flags(optarg, &last_mirror->m_flags,
2753                                                 &flags);
2754                         if (result != 0)
2755                                 goto usage_error;
2756
2757                         if (flags) {
2758                                 fprintf(stderr, "%s: inverted flags are not supported\n",
2759                                         progname);
2760                                 result = -EINVAL;
2761                                 goto usage_error;
2762                         }
2763                         if (last_mirror->m_flags & ~LCME_USER_FLAGS) {
2764                                 fprintf(stderr,
2765                                         "%s: unsupported mirror flags: %s\n",
2766                                         progname, optarg);
2767                                 result = -EINVAL;
2768                                 goto error;
2769                         }
2770                         break;
2771                 }
2772                 case LFS_LAYOUT_COPY:
2773                         from_copy = true;
2774                         template = optarg;
2775                         break;
2776                 case 'b':
2777                         if (!migrate_mode) {
2778                                 fprintf(stderr,
2779                                         "%s %s: -b|--block valid only for migrate command\n",
2780                                         progname, argv[0]);
2781                                 goto usage_error;
2782                         }
2783                         migration_block = true;
2784                         break;
2785                 case 'c':
2786                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
2787                         if (*end != '\0') {
2788                                 fprintf(stderr,
2789                                         "%s %s: invalid stripe count '%s'\n",
2790                                         progname, argv[0], optarg);
2791                                 goto usage_error;
2792                         }
2793
2794                         if (lsa.lsa_stripe_count == -1)
2795                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
2796                         break;
2797                 case 'd':
2798                         /* delete the default striping pattern */
2799                         delete = 1;
2800                         if (opc == SO_MIRROR_SPLIT) {
2801                                 if (has_m_file) {
2802                                         fprintf(stderr,
2803                                               "%s %s: -d cannot used with -f\n",
2804                                                 progname, argv[0]);
2805                                         goto usage_error;
2806                                 }
2807                                 mirror_flags |= MF_DESTROY;
2808                         }
2809                         break;
2810                 case 'D':
2811                         if (!migrate_mode) {
2812                                 fprintf(stderr,
2813                                         "%s %s: -D|--non-direct is valid "
2814                                         "only for migrate command\n",
2815                                         progname, argv[0]);
2816                                 goto usage_error;
2817                         }
2818                         migration_flags |= MIGRATION_NONDIRECT;
2819                         break;
2820                 case 'E':
2821                         if (lsa.lsa_comp_end != 0) {
2822                                 result = comp_args_to_layout(lpp, &lsa, true);
2823                                 if (result) {
2824                                         fprintf(stderr,
2825                                                 "%s %s: invalid layout\n",
2826                                                 progname, argv[0]);
2827                                         goto usage_error;
2828                                 }
2829
2830                                 setstripe_args_init_inherit(&lsa);
2831                         }
2832
2833                         if (arg_is_eof(optarg)) {
2834                                 lsa.lsa_comp_end = LUSTRE_EOF;
2835                         } else {
2836                                 result = llapi_parse_size(optarg,
2837                                                         &lsa.lsa_comp_end,
2838                                                         &size_units, 0);
2839                                 if (result) {
2840                                         fprintf(stderr,
2841                                                 "%s %s: invalid component end '%s'\n",
2842                                                 progname, argv[0], optarg);
2843                                         goto usage_error;
2844                                 }
2845                         }
2846                         break;
2847                 case 'H':
2848                         if (!migrate_mode) {
2849                                 fprintf(stderr, "--mdt-hash is valid only for migrate command\n");
2850                                 return CMD_HELP;
2851                         }
2852
2853                         lsa.lsa_pattern = check_hashtype(optarg);
2854                         if (lsa.lsa_pattern == 0) {
2855                                 fprintf(stderr,
2856                                         "%s %s: bad stripe hash type '%s'\n",
2857                                         progname, argv[0], optarg);
2858                                 return CMD_HELP;
2859                         }
2860                         break;
2861                 case 'i':
2862                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
2863                         if (*end != '\0') {
2864                                 fprintf(stderr,
2865                                         "%s %s: invalid stripe offset '%s'\n",
2866                                         progname, argv[0], optarg);
2867                                 goto usage_error;
2868                         }
2869                         if (lsa.lsa_stripe_off == -1)
2870                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2871                         break;
2872                 case 'I':
2873                         comp_id = strtoul(optarg, &end, 0);
2874                         if (*end != '\0' || comp_id == 0 ||
2875                             comp_id > LCME_ID_MAX) {
2876                                 fprintf(stderr,
2877                                         "%s %s: invalid component ID '%s'\n",
2878                                         progname, argv[0], optarg);
2879                                 goto usage_error;
2880                         }
2881                         break;
2882                 case 'f':
2883                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
2884                                 fprintf(stderr,
2885                                         "error: %s: invalid option: %s\n",
2886                                         progname, argv[optopt + 1]);
2887                                 goto usage_error;
2888                         }
2889                         if (opc == SO_MIRROR_EXTEND) {
2890                                 if (last_mirror == NULL) {
2891                                         fprintf(stderr,
2892                                 "error: %s: '-N' must exist in front of '%s'\n",
2893                                                 progname, argv[optopt + 1]);
2894                                         goto usage_error;
2895                                 }
2896                                 last_mirror->m_file = optarg;
2897                                 last_mirror->m_count = 1;
2898                         } else {
2899                                 /* mirror split */
2900                                 if (mirror_list == NULL)
2901                                         mirror_list = lfs_mirror_alloc();
2902                                 mirror_list->m_file = optarg;
2903                         }
2904                         has_m_file = true;
2905                         break;
2906                 case 'L':
2907                         if (strcmp(argv[optind - 1], "mdt") == 0) {
2908                                 /* Can be only the first component */
2909                                 if (layout != NULL) {
2910                                         result = -EINVAL;
2911                                         fprintf(stderr, "error: 'mdt' layout "
2912                                                 "can be only the first one\n");
2913                                         goto error;
2914                                 }
2915                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
2916                                         result = -EFBIG;
2917                                         fprintf(stderr, "error: 'mdt' layout "
2918                                                 "size is too big\n");
2919                                         goto error;
2920                                 }
2921                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
2922                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
2923                                 result = -EINVAL;
2924                                 fprintf(stderr, "error: layout '%s' is "
2925                                         "unknown, supported layouts are: "
2926                                         "'mdt', 'raid0'\n", argv[optind]);
2927                                 goto error;
2928                         }
2929                         break;
2930                 case 'm':
2931                         if (!migrate_mode) {
2932                                 fprintf(stderr,
2933                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
2934                                         progname, argv[0]);
2935                                 goto usage_error;
2936                         }
2937                         migrate_mdt_mode = true;
2938                         lsa.lsa_nr_tgts = parse_targets(tgts,
2939                                                 sizeof(tgts) / sizeof(__u32),
2940                                                 lsa.lsa_nr_tgts, optarg);
2941                         if (lsa.lsa_nr_tgts < 0) {
2942                                 fprintf(stderr,
2943                                         "%s %s: invalid MDT target(s) '%s'\n",
2944                                         progname, argv[0], optarg);
2945                                 return CMD_HELP;
2946                         }
2947
2948                         lsa.lsa_tgts = tgts;
2949                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
2950                                 lsa.lsa_stripe_off = tgts[0];
2951                         break;
2952                 case 'n':
2953                         if (!migrate_mode) {
2954                                 fprintf(stderr,
2955                                         "%s %s: -n|--non-block valid only for migrate command\n",
2956                                         progname, argv[0]);
2957                                 goto usage_error;
2958                         }
2959                         migration_flags |= MIGRATION_NONBLOCK;
2960                         break;
2961                 case 'N':
2962                         if (opc == SO_SETSTRIPE) {
2963                                 opc = SO_MIRROR_CREATE;
2964                                 mirror_mode = true;
2965                         }
2966                         mirror_count = 1;
2967                         if (optarg != NULL) {
2968                                 mirror_count = strtoul(optarg, &end, 0);
2969                                 if (*end != '\0' || mirror_count == 0) {
2970                                         fprintf(stderr,
2971                                                 "error: %s: bad mirror count: %s\n",
2972                                                 progname, optarg);
2973                                         result = -EINVAL;
2974                                         goto error;
2975                                 }
2976                         }
2977
2978                         new_mirror = lfs_mirror_alloc();
2979                         new_mirror->m_count = mirror_count;
2980
2981                         if (mirror_list == NULL)
2982                                 mirror_list = new_mirror;
2983
2984                         if (last_mirror != NULL) {
2985                                 /* wrap up last mirror */
2986                                 if (lsa.lsa_comp_end == 0)
2987                                         lsa.lsa_comp_end = LUSTRE_EOF;
2988
2989                                 result = comp_args_to_layout(lpp, &lsa, true);
2990                                 if (result) {
2991                                         lfs_mirror_free(new_mirror);
2992                                         goto error;
2993                                 }
2994
2995                                 setstripe_args_init_inherit(&lsa);
2996
2997                                 last_mirror->m_next = new_mirror;
2998                         }
2999
3000                         last_mirror = new_mirror;
3001                         lpp = &last_mirror->m_layout;
3002                         break;
3003                 case 'o':
3004 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3005                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
3006                                 fprintf(stderr, "warning: '--ost-list' is "
3007                                         "deprecated, use '--ost' instead\n");
3008 #endif
3009                         lsa.lsa_nr_tgts = parse_targets(tgts,
3010                                                 sizeof(tgts) / sizeof(__u32),
3011                                                 lsa.lsa_nr_tgts, optarg);
3012                         if (lsa.lsa_nr_tgts < 0) {
3013                                 fprintf(stderr,
3014                                         "%s %s: invalid OST target(s) '%s'\n",
3015                                         progname, argv[0], optarg);
3016                                 goto usage_error;
3017                         }
3018
3019                         lsa.lsa_tgts = tgts;
3020                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3021                                 lsa.lsa_stripe_off = tgts[0];
3022                         break;
3023                 case 'p':
3024                         if (optarg == NULL)
3025                                 goto usage_error;
3026                         lsa.lsa_pool_name = optarg;
3027
3028                         if (strlen(lsa.lsa_pool_name) == 0 ||
3029                             strncmp(lsa.lsa_pool_name, "none",
3030                                     LOV_MAXPOOLNAME) == 0)
3031                                 lsa.lsa_pool_name = NULL;
3032                         break;
3033                 case 'S':
3034                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3035                                                   &size_units, 0);
3036                         if (result) {
3037                                 fprintf(stderr,
3038                                         "%s %s: invalid stripe size '%s'\n",
3039                                         progname, argv[0], optarg);
3040                                 goto usage_error;
3041                         }
3042                         break;
3043                 case 'v':
3044                         if (!migrate_mode) {
3045                                 fprintf(stderr,
3046                                         "%s %s: -v|--verbose valid only for migrate command\n",
3047                                         progname, argv[0]);
3048                                 goto usage_error;
3049                         }
3050                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3051                         migration_flags = MIGRATION_VERBOSE;
3052                         break;
3053                 case 'y':
3054                         from_yaml = true;
3055                         template = optarg;
3056                         break;
3057                 default:
3058                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
3059                                 progname, argv[0], argv[optind - 1]);
3060                         goto usage_error;
3061                 }
3062         }
3063
3064         fname = argv[optind];
3065
3066         if (optind == argc) {
3067                 fprintf(stderr, "%s %s: FILE must be specified\n",
3068                         progname, argv[0]);
3069                 goto usage_error;
3070         }
3071
3072         if (mirror_mode && mirror_count == 0) {
3073                 fprintf(stderr,
3074                         "error: %s: --mirror-count|-N option is required\n",
3075                         progname);
3076                 result = -EINVAL;
3077                 goto error;
3078         }
3079
3080         if (mirror_mode) {
3081                 if (lsa.lsa_comp_end == 0)
3082                         lsa.lsa_comp_end = LUSTRE_EOF;
3083         }
3084
3085         if (lsa.lsa_comp_end != 0) {
3086                 result = comp_args_to_layout(lpp, &lsa, true);
3087                 if (result)
3088                         goto error;
3089         }
3090
3091         if (mirror_flags & MF_NO_VERIFY) {
3092                 if (opc != SO_MIRROR_EXTEND) {
3093                         fprintf(stderr,
3094                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
3095                                 progname);
3096                         result = -EINVAL;
3097                         goto error;
3098                 } else if (!has_m_file) {
3099                         fprintf(stderr,
3100                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
3101                                 progname);
3102                         result = -EINVAL;
3103                         goto error;
3104                 }
3105         }
3106
3107         /* Only LCME_FL_INIT flags is used in PFL, and it shouldn't be
3108          * altered by user space tool, so we don't need to support the
3109          * --component-set for this moment. */
3110         if (comp_set && !comp_id) {
3111                 fprintf(stderr, "%s %s: --component-set doesn't have component-id set\n",
3112                         progname, argv[0]);
3113                 goto usage_error;
3114         }
3115
3116         if ((delete + comp_set + comp_del + comp_add) > 1) {
3117                 fprintf(stderr,
3118                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
3119                         progname, argv[0]);
3120                 goto usage_error;
3121         }
3122
3123         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
3124                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
3125                 fprintf(stderr,
3126                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
3127                         progname, argv[0]);
3128                 goto usage_error;
3129         }
3130
3131         if ((comp_set || comp_del) &&
3132             (setstripe_args_specified(&lsa) || layout != NULL)) {
3133                 fprintf(stderr,
3134                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
3135                         progname, argv[0]);
3136                 goto usage_error;
3137         }
3138
3139         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
3140                 fprintf(stderr,
3141                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
3142                         progname, argv[0]);
3143                 goto usage_error;
3144         }
3145
3146         if (comp_add || comp_del) {
3147                 struct stat st;
3148
3149                 result = lstat(fname, &st);
3150                 if (result == 0 && S_ISDIR(st.st_mode)) {
3151                         fprintf(stderr,
3152                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
3153                                 progname);
3154                         goto usage_error;
3155                 }
3156
3157                 if (mirror_mode) {
3158                         fprintf(stderr, "error: %s: can't use --component-add "
3159                                 "or --component-del for mirror operation\n",
3160                                 progname);
3161                         goto usage_error;
3162                 }
3163         }
3164
3165         if (comp_add) {
3166                 if (layout == NULL) {
3167                         fprintf(stderr,
3168                                 "%s %s: option -E must be specified with --component-add\n",
3169                                 progname, argv[0]);
3170                         goto usage_error;
3171                 }
3172
3173                 result = adjust_first_extent(fname, layout);
3174                 if (result == -ENODATA)
3175                         comp_add = 0;
3176                 else if (result != 0)
3177                         goto error;
3178         }
3179
3180         if (from_yaml && from_copy) {
3181                 fprintf(stderr,
3182                         "%s: can't specify --yaml and --copy together\n",
3183                         progname);
3184                 goto error;
3185         }
3186
3187         if ((from_yaml || from_copy) &&
3188             (setstripe_args_specified(&lsa) || layout != NULL)) {
3189                 fprintf(stderr, "error: %s: can't specify --yaml with "
3190                         "-c, -S, -i, -o, -p or -E options.\n",
3191                         argv[0]);
3192                 goto error;
3193         }
3194
3195         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
3196                 fprintf(stderr,
3197                         "%s %s: options --non-block and --block are mutually exclusive\n",
3198                         progname, argv[0]);
3199                 goto usage_error;
3200         }
3201
3202         if (!comp_del && !comp_set && (opc != SO_MIRROR_SPLIT) &&
3203             comp_id != 0) {
3204                 fprintf(stderr,
3205                 "%s %s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
3206                         progname, argv[0]);
3207                 goto usage_error;
3208         }
3209
3210         if (migrate_mdt_mode) {
3211                 struct lmv_user_md *lmu;
3212
3213                 /* initialize migrate mdt parameters */
3214                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
3215                                                  LMV_USER_MAGIC_SPECIFIC));
3216                 if (!lmu) {
3217                         fprintf(stderr,
3218                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
3219                                 progname, argv[0], strerror(ENOMEM));
3220                         result = -ENOMEM;
3221                         goto error;
3222                 }
3223                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
3224                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
3225                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
3226                         fprintf(stderr,
3227                                 "%s %s: migrate should specify MDT index\n",
3228                                 progname, argv[0]);
3229                         free(lmu);
3230                         goto usage_error;
3231                 }
3232                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
3233                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
3234                         lmu->lum_hash_type = lsa.lsa_pattern;
3235                 else
3236                         lmu->lum_hash_type = LMV_HASH_TYPE_FNV_1A_64;
3237                 if (lsa.lsa_pool_name)
3238                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
3239                                 sizeof(lmu->lum_pool_name));
3240                 if (lsa.lsa_nr_tgts > 1) {
3241                         int i;
3242
3243                         if (lsa.lsa_stripe_count > 0 &&
3244                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3245                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
3246                                 fprintf(stderr,
3247                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
3248                                         progname, lsa.lsa_stripe_count,
3249                                                 lsa.lsa_nr_tgts);
3250                                 free(lmu);
3251                                 goto usage_error;
3252                         }
3253
3254                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
3255                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
3256                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
3257                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
3258                 } else {
3259                         lmu->lum_magic = LMV_USER_MAGIC;
3260                 }
3261
3262                 migrate_mdt_param.fp_lmv_md = lmu;
3263                 migrate_mdt_param.fp_migrate = 1;
3264         } else if (layout == NULL) {
3265                 /* initialize stripe parameters */
3266                 param = calloc(1, offsetof(typeof(*param),
3267                                lsp_osts[lsa.lsa_nr_tgts]));
3268                 if (param == NULL) {
3269                         fprintf(stderr,
3270                                 "%s %s: cannot allocate memory for parameters: %s\n",
3271                                 progname, argv[0], strerror(ENOMEM));
3272                         result = -ENOMEM;
3273                         goto error;
3274                 }
3275
3276                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
3277                         param->lsp_stripe_size = lsa.lsa_stripe_size;
3278                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
3279                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
3280                                 param->lsp_stripe_count = -1;
3281                         else
3282                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
3283                 }
3284                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3285                         param->lsp_stripe_offset = -1;
3286                 else
3287                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
3288                 param->lsp_pool = lsa.lsa_pool_name;
3289                 param->lsp_is_specific = false;
3290                 if (lsa.lsa_nr_tgts > 0) {
3291                         if (lsa.lsa_stripe_count > 0 &&
3292                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3293                             lsa.lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
3294                             lsa.lsa_nr_tgts != lsa.lsa_stripe_count) {
3295                                 fprintf(stderr, "error: %s: stripe count %lld "
3296                                         "doesn't match the number of OSTs: %d\n"
3297                                         , argv[0], lsa.lsa_stripe_count,
3298                                         lsa.lsa_nr_tgts);
3299                                 free(param);
3300                                 goto usage_error;
3301                         }
3302
3303                         param->lsp_is_specific = true;
3304                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
3305                         memcpy(param->lsp_osts, tgts,
3306                                sizeof(*tgts) * lsa.lsa_nr_tgts);
3307                 }
3308         }
3309
3310         if (from_yaml) {
3311                 /* generate a layout from a YAML template */
3312                 result = lfs_comp_create_from_yaml(template, &layout,
3313                                                    &lsa, tgts);
3314                 if (result) {
3315                         fprintf(stderr, "error: %s: can't create composite "
3316                                 "layout from template file %s\n",
3317                                 argv[0], template);
3318                         goto error;
3319                 }
3320         } else if (from_copy) {
3321                 layout = llapi_layout_get_by_path(template, 0);
3322                 if (layout == NULL) {
3323                         fprintf(stderr,
3324                             "%s: can't create composite layout from file %s.\n",
3325                                 progname, template);
3326                         goto error;
3327                 }
3328         }
3329
3330         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
3331                 if (migrate_mdt_mode) {
3332                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
3333                 } else if (migrate_mode) {
3334                         result = lfs_migrate(fname, migration_flags, param,
3335                                              layout);
3336                 } else if (comp_set != 0) {
3337                         result = lfs_component_set(fname, comp_id,
3338                                                    lsa.lsa_comp_flags,
3339                                                    lsa.lsa_comp_neg_flags);
3340                 } else if (comp_del != 0) {
3341                         result = lfs_component_del(fname, comp_id,
3342                                                    lsa.lsa_comp_flags,
3343                                                    lsa.lsa_comp_neg_flags);
3344                 } else if (comp_add != 0) {
3345                         result = lfs_component_add(fname, layout);
3346                 } else if (opc == SO_MIRROR_CREATE) {
3347                         result = mirror_create(fname, mirror_list);
3348                 } else if (opc == SO_MIRROR_EXTEND) {
3349                         result = mirror_extend(fname, mirror_list,
3350                                                mirror_flags);
3351                 } else if (opc == SO_MIRROR_SPLIT) {
3352                         if (mirror_id == 0 && comp_id == 0) {
3353                                 fprintf(stderr,
3354                         "%s %s: no mirror id or component id is specified\n",
3355                                         progname, argv[0]);
3356                                 goto usage_error;
3357                         }
3358                         if (mirror_id != 0)
3359                                 comp_id = mirror_id;
3360                         else
3361                                 mirror_flags |= MF_COMP_ID;
3362                         result = mirror_split(fname, comp_id, mirror_flags,
3363                                               has_m_file ? mirror_list->m_file :
3364                                               NULL);
3365                 } else if (layout != NULL) {
3366                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
3367                                                       0666, layout);
3368                         if (result >= 0) {
3369                                 close(result);
3370                                 result = 0;
3371                         }
3372                 } else {
3373                         result = llapi_file_open_param(fname,
3374                                                        O_CREAT | O_WRONLY,
3375                                                        0666, param);
3376                         if (result >= 0) {
3377                                 close(result);
3378                                 result = 0;
3379                         }
3380                 }
3381                 if (result) {
3382                         /* Save the first error encountered. */
3383                         if (result2 == 0)
3384                                 result2 = result;
3385                         continue;
3386                 }
3387         }
3388
3389         free(param);
3390         free(migrate_mdt_param.fp_lmv_md);
3391         llapi_layout_free(layout);
3392         lfs_mirror_list_free(mirror_list);
3393         return result2;
3394 usage_error:
3395         result = CMD_HELP;
3396 error:
3397         llapi_layout_free(layout);
3398         lfs_mirror_list_free(mirror_list);
3399         return result;
3400 }
3401
3402 static int lfs_poollist(int argc, char **argv)
3403 {
3404         if (argc != 2)
3405                 return CMD_HELP;
3406
3407         return llapi_poollist(argv[1]);
3408 }
3409
3410 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
3411                        char *str)
3412 {
3413         long long t = 0;
3414         int res = 0;
3415         char *endptr = "AD";
3416         char *timebuf;
3417
3418         if (str[0] == '+')
3419                 res = 1;
3420         else if (str[0] == '-')
3421                 res = -1;
3422
3423         if (res)
3424                 str++;
3425
3426         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
3427                 long long val = strtoll(timebuf, &endptr, 0);
3428                 int unit = 1;
3429
3430                 switch (*endptr) {
3431                 case  'y':
3432                         unit *= 52; /* 52 weeks + 1 day below */
3433                 case  'w':      /* fallthrough */
3434                         unit *= 7;
3435                 case '\0': /* days are default unit if none used */
3436                 case  'd':      /* fallthrough */
3437                         unit = (unit + (*endptr == 'y')) * 24;
3438                 case  'h':      /* fallthrough */
3439                         unit *= 60;
3440                 case  'm':      /* fallthrough */
3441                         unit *= 60;
3442                 case  's':      /* fallthrough */
3443                         break;
3444                         /* don't need to multiply by 1 for seconds */
3445                 default:
3446                         fprintf(stderr,
3447                                 "%s find: bad time string '%s': %s\n",
3448                                 progname, timebuf, strerror(EINVAL));
3449                         return LONG_MAX;
3450                 }
3451                 if (*endptr && unit < 24 * 60 * 60)
3452                         param->fp_time_margin = unit;
3453
3454                 t += val * unit;
3455         }
3456         if (*time < t) {
3457                 if (res != 0)
3458                         str--;
3459                 fprintf(stderr, "%s find: bad time '%s': too large\n",
3460                         progname, str);
3461                 return LONG_MAX;
3462         }
3463
3464         *set = *time - t;
3465         return res;
3466 }
3467
3468 static int name2uid(unsigned int *id, const char *name)
3469 {
3470         struct passwd *passwd;
3471
3472         passwd = getpwnam(name);
3473         if (passwd == NULL)
3474                 return -ENOENT;
3475         *id = passwd->pw_uid;
3476
3477         return 0;
3478 }
3479
3480 static int name2gid(unsigned int *id, const char *name)
3481 {
3482         struct group *group;
3483
3484         group = getgrnam(name);
3485         if (group == NULL)
3486                 return -ENOENT;
3487         *id = group->gr_gid;
3488
3489         return 0;
3490 }
3491
3492 static inline int name2projid(unsigned int *id, const char *name)
3493 {
3494         return -ENOTSUP;
3495 }
3496
3497 static int uid2name(char **name, unsigned int id)
3498 {
3499         struct passwd *passwd;
3500
3501         passwd = getpwuid(id);
3502         if (passwd == NULL)
3503                 return -ENOENT;
3504         *name = passwd->pw_name;
3505
3506         return 0;
3507 }
3508
3509 static inline int gid2name(char **name, unsigned int id)
3510 {
3511         struct group *group;
3512
3513         group = getgrgid(id);
3514         if (group == NULL)
3515                 return -ENOENT;
3516         *name = group->gr_name;
3517
3518         return 0;
3519 }
3520
3521 static int name2layout(__u32 *layout, char *name)
3522 {
3523         char *ptr, *layout_name;
3524
3525         *layout = 0;
3526         for (ptr = name; ; ptr = NULL) {
3527                 layout_name = strtok(ptr, ",");
3528                 if (layout_name == NULL)
3529                         break;
3530                 if (strcmp(layout_name, "released") == 0)
3531                         *layout |= LOV_PATTERN_F_RELEASED;
3532                 else if (strcmp(layout_name, "raid0") == 0)
3533                         *layout |= LOV_PATTERN_RAID0;
3534                 else if (strcmp(layout_name, "mdt") == 0)
3535                         *layout |= LOV_PATTERN_MDT;
3536                 else
3537                         return -1;
3538         }
3539         return 0;
3540 }
3541
3542 static int lfs_find(int argc, char **argv)
3543 {
3544         int c, rc;
3545         int ret = 0;
3546         time_t t;
3547         struct find_param param = {
3548                 .fp_max_depth = -1,
3549                 .fp_quiet = 1,
3550                 .fp_time_margin = 24 * 60 * 60,
3551         };
3552         struct option long_opts[] = {
3553         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
3554         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
3555         { .val = LFS_COMP_COUNT_OPT,
3556                         .name = "comp-count",   .has_arg = required_argument },
3557         { .val = LFS_COMP_COUNT_OPT,
3558                         .name = "component-count",
3559                                                 .has_arg = required_argument },
3560         { .val = LFS_COMP_FLAGS_OPT,
3561                         .name = "comp-flags",   .has_arg = required_argument },
3562         { .val = LFS_COMP_FLAGS_OPT,
3563                         .name = "component-flags",
3564                                                 .has_arg = required_argument },
3565         { .val = LFS_COMP_START_OPT,
3566                         .name = "comp-start",   .has_arg = required_argument },
3567         { .val = LFS_COMP_START_OPT,
3568                         .name = "component-start",
3569                                                 .has_arg = required_argument },
3570         { .val = LFS_MIRROR_STATE_OPT,
3571                         .name = "mirror-state", .has_arg = required_argument },
3572         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
3573         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
3574         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
3575 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
3576         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
3577         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
3578         { .val = 'E',   .name = "component-end",
3579                                                 .has_arg = required_argument },
3580 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3581         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
3582         { .val = 'G',   .name = "group",        .has_arg = required_argument },
3583         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
3584         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
3585         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
3586 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
3587         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3588         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
3589         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
3590         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
3591         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
3592         { .val = 'n',   .name = "name",         .has_arg = required_argument },
3593         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
3594 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
3595         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
3596         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
3597         /* no short option for pool yet, can be 'p' after 2.18 */
3598         { .val = LFS_POOL_OPT,
3599                         .name = "pool",         .has_arg = required_argument },
3600         { .val = '0',   .name = "print0",       .has_arg = no_argument },
3601         { .val = 'P',   .name = "print",        .has_arg = no_argument },
3602         { .val = LFS_PROJID_OPT,
3603                         .name = "projid",       .has_arg = required_argument },
3604 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3605 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3606 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3607         { .val = 's',   .name = "size",         .has_arg = required_argument },
3608         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3609         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3610         { .val = 't',   .name = "type",         .has_arg = required_argument },
3611         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
3612         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
3613         { .val = 'U',   .name = "user",         .has_arg = required_argument },
3614 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
3615 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
3616         { .name = NULL } };
3617         int pathstart = -1;
3618         int pathend = -1;
3619         int neg_opt = 0;
3620         time_t *xtime;
3621         int *xsign;
3622         int isoption;
3623         char *endptr;
3624
3625         time(&t);
3626
3627         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
3628         while ((c = getopt_long_only(argc, argv,
3629                         "-0A:b:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:v",
3630                         long_opts, NULL)) >= 0) {
3631                 xtime = NULL;
3632                 xsign = NULL;
3633                 if (neg_opt)
3634                         --neg_opt;
3635                 /* '!' is part of option */
3636                 /* when getopt_long_only() finds a string which is not
3637                  * an option nor a known option argument it returns 1
3638                  * in that case if we already have found pathstart and pathend
3639                  * (i.e. we have the list of pathnames),
3640                  * the only supported value is "!"
3641                  */
3642                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
3643                 if (!isoption && pathend != -1) {
3644                         fprintf(stderr, "err: %s: filename|dirname must either "
3645                                         "precede options or follow options\n",
3646                                         argv[0]);
3647                         ret = CMD_HELP;
3648                         goto err;
3649                 }
3650                 if (!isoption && pathstart == -1)
3651                         pathstart = optind - 1;
3652                 if (isoption && pathstart != -1 && pathend == -1)
3653                         pathend = optind - 2;
3654                 switch (c) {
3655                 case 0:
3656                         /* Long options. */
3657                         break;
3658                 case 1:
3659                         /* unknown; opt is "!" or path component,
3660                          * checking done above.
3661                          */
3662                         if (strcmp(optarg, "!") == 0)
3663                                 neg_opt = 2;
3664                         break;
3665                 case 'A':
3666                         xtime = &param.fp_atime;
3667                         xsign = &param.fp_asign;
3668                         param.fp_exclude_atime = !!neg_opt;
3669                         /* no break, this falls through to 'C' for ctime */
3670                 case 'C':
3671                         if (c == 'C') {
3672                                 xtime = &param.fp_ctime;
3673                                 xsign = &param.fp_csign;
3674                                 param.fp_exclude_ctime = !!neg_opt;
3675                         }
3676                         /* no break, this falls through to 'M' for mtime */
3677                 case 'M':
3678                         if (c == 'M') {
3679                                 xtime = &param.fp_mtime;
3680                                 xsign = &param.fp_msign;
3681                                 param.fp_exclude_mtime = !!neg_opt;
3682                         }
3683                         rc = set_time(&param, &t, xtime, optarg);
3684                         if (rc == LONG_MAX) {
3685                                 ret = -1;
3686                                 goto err;
3687                         }
3688                         if (rc)
3689                                 *xsign = rc;
3690                         break;
3691                 case 'b':
3692                         if (optarg[0] == '+') {
3693                                 param.fp_blocks_sign = -1;
3694                                 optarg++;
3695                         } else if (optarg[0] == '-') {
3696                                 param.fp_blocks_sign =  1;
3697                                 optarg++;
3698                         }
3699
3700                         param.fp_blocks_units = 1024;
3701                         ret = llapi_parse_size(optarg, &param.fp_blocks,
3702                                                &param.fp_blocks_units, 0);
3703                         if (ret) {
3704                                 fprintf(stderr, "error: bad blocks '%s'\n",
3705                                         optarg);
3706                                 goto err;
3707                         }
3708                         param.fp_check_blocks = 1;
3709                         param.fp_exclude_blocks = !!neg_opt;
3710                         break;
3711                 case LFS_COMP_COUNT_OPT:
3712                         if (optarg[0] == '+') {
3713                                 param.fp_comp_count_sign = -1;
3714                                 optarg++;
3715                         } else if (optarg[0] == '-') {
3716                                 param.fp_comp_count_sign =  1;
3717                                 optarg++;
3718                         }
3719
3720                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
3721                         if (*endptr != '\0') {
3722                                 fprintf(stderr, "error: bad component count "
3723                                         "'%s'\n", optarg);
3724                                 goto err;
3725                         }
3726                         param.fp_check_comp_count = 1;
3727                         param.fp_exclude_comp_count = !!neg_opt;
3728                         break;
3729                 case LFS_COMP_FLAGS_OPT:
3730                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
3731                                             &param.fp_comp_neg_flags);
3732                         if (rc) {
3733                                 fprintf(stderr, "error: bad component flags "
3734                                         "'%s'\n", optarg);
3735                                 goto err;
3736                         }
3737                         param.fp_check_comp_flags = 1;
3738                         if (neg_opt) {
3739                                 __u32 flags = param.fp_comp_neg_flags;
3740                                 param.fp_comp_neg_flags = param.fp_comp_flags;
3741                                 param.fp_comp_flags = flags;
3742                         }
3743                         break;
3744                 case LFS_COMP_START_OPT:
3745                         if (optarg[0] == '+') {
3746                                 param.fp_comp_start_sign = -1;
3747                                 optarg++;
3748                         } else if (optarg[0] == '-') {
3749                                 param.fp_comp_start_sign =  1;
3750                                 optarg++;
3751                         }
3752
3753                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
3754                                               &param.fp_comp_start_units, 0);
3755                         if (rc) {
3756                                 fprintf(stderr, "error: bad component start "
3757                                         "'%s'\n", optarg);
3758                                 goto err;
3759                         }
3760                         param.fp_check_comp_start = 1;
3761                         param.fp_exclude_comp_start = !!neg_opt;
3762                         break;
3763                 case LFS_MIRROR_STATE_OPT:
3764                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
3765                                               &param.fp_mirror_neg_state);
3766                         if (rc) {
3767                                 fprintf(stderr,
3768                                         "error: bad mirrored file state '%s'\n",
3769                                         optarg);
3770                                 goto err;
3771                         }
3772                         param.fp_check_mirror_state = 1;
3773                         if (neg_opt) {
3774                                 __u16 state = param.fp_mirror_neg_state;
3775                                 param.fp_mirror_neg_state =
3776                                         param.fp_mirror_state;
3777                                 param.fp_mirror_state = state;
3778                         }
3779                         break;
3780                 case 'c':
3781                         if (optarg[0] == '+') {
3782                                 param.fp_stripe_count_sign = -1;
3783                                 optarg++;
3784                         } else if (optarg[0] == '-') {
3785                                 param.fp_stripe_count_sign =  1;
3786                                 optarg++;
3787                         }
3788
3789                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
3790                         if (*endptr != '\0') {
3791                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
3792                                         optarg);
3793                                 ret = -1;
3794                                 goto err;
3795                         }
3796                         param.fp_check_stripe_count = 1;
3797                         param.fp_exclude_stripe_count = !!neg_opt;
3798                         break;
3799                 case 'D':
3800                         param.fp_max_depth = strtol(optarg, 0, 0);
3801                         break;
3802                 case 'E':
3803                         if (optarg[0] == '+') {
3804                                 param.fp_comp_end_sign = -1;
3805                                 optarg++;
3806                         } else if (optarg[0] == '-') {
3807                                 param.fp_comp_end_sign =  1;
3808                                 optarg++;
3809                         }
3810
3811                         if (arg_is_eof(optarg)) {
3812                                 param.fp_comp_end = LUSTRE_EOF;
3813                                 param.fp_comp_end_units = 1;
3814                                 rc = 0;
3815                         } else {
3816                                 rc = llapi_parse_size(optarg,
3817                                                 &param.fp_comp_end,
3818                                                 &param.fp_comp_end_units, 0);
3819                         }
3820                         if (rc) {
3821                                 fprintf(stderr, "error: bad component end "
3822                                         "'%s'\n", optarg);
3823                                 goto err;
3824                         }
3825                         param.fp_check_comp_end = 1;
3826                         param.fp_exclude_comp_end = !!neg_opt;
3827                         break;
3828                 case 'g':
3829                 case 'G':
3830                         rc = name2gid(&param.fp_gid, optarg);
3831                         if (rc) {
3832                                 param.fp_gid = strtoul(optarg, &endptr, 10);
3833                                 if (*endptr != '\0') {
3834                                         fprintf(stderr, "Group/GID: %s cannot "
3835                                                 "be found.\n", optarg);
3836                                         ret = -1;
3837                                         goto err;
3838                                 }
3839                         }
3840                         param.fp_exclude_gid = !!neg_opt;
3841                         param.fp_check_gid = 1;
3842                         break;
3843                 case 'H':
3844                         param.fp_hash_type = check_hashtype(optarg);
3845                         if (param.fp_hash_type == 0) {
3846                                 fprintf(stderr, "error: bad hash_type '%s'\n",
3847                                         optarg);
3848                                 ret = -1;
3849                                 goto err;
3850                         }
3851                         param.fp_check_hash_type = 1;
3852                         param.fp_exclude_hash_type = !!neg_opt;
3853                         break;
3854                 case 'L':
3855                         ret = name2layout(&param.fp_layout, optarg);
3856                         if (ret)
3857                                 goto err;
3858                         param.fp_exclude_layout = !!neg_opt;
3859                         param.fp_check_layout = 1;
3860                         break;
3861                 case 'u':
3862                 case 'U':
3863                         rc = name2uid(&param.fp_uid, optarg);
3864                         if (rc) {
3865                                 param.fp_uid = strtoul(optarg, &endptr, 10);
3866                                 if (*endptr != '\0') {
3867                                         fprintf(stderr, "User/UID: %s cannot "
3868                                                 "be found.\n", optarg);
3869                                         ret = -1;
3870                                         goto err;
3871                                 }
3872                         }
3873                         param.fp_exclude_uid = !!neg_opt;
3874                         param.fp_check_uid = 1;
3875                         break;
3876                 case 'n':
3877                         param.fp_pattern = (char *)optarg;
3878                         param.fp_exclude_pattern = !!neg_opt;
3879                         break;
3880                 case 'N':
3881                         if (optarg[0] == '+') {
3882                                 param.fp_mirror_count_sign = -1;
3883                                 optarg++;
3884                         } else if (optarg[0] == '-') {
3885                                 param.fp_mirror_count_sign =  1;
3886                                 optarg++;
3887                         }
3888
3889                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
3890                         if (*endptr != '\0') {
3891                                 fprintf(stderr,
3892                                         "error: bad mirror count '%s'\n",
3893                                         optarg);
3894                                 goto err;
3895                         }
3896                         param.fp_check_mirror_count = 1;
3897                         param.fp_exclude_mirror_count = !!neg_opt;
3898                         break;
3899                 case 'm':
3900                 case 'i':
3901                 case 'O': {
3902                         char *buf, *token, *next, *p;
3903                         int len = 1;
3904                         void *tmp;
3905
3906                         buf = strdup(optarg);
3907                         if (buf == NULL) {
3908                                 ret = -ENOMEM;
3909                                 goto err;
3910                         }
3911
3912                         param.fp_exclude_obd = !!neg_opt;
3913
3914                         token = buf;
3915                         while (token && *token) {
3916                                 token = strchr(token, ',');
3917                                 if (token) {
3918                                         len++;
3919                                         token++;
3920                                 }
3921                         }
3922                         if (c == 'm') {
3923                                 param.fp_exclude_mdt = !!neg_opt;
3924                                 param.fp_num_alloc_mdts += len;
3925                                 tmp = realloc(param.fp_mdt_uuid,
3926                                               param.fp_num_alloc_mdts *
3927                                               sizeof(*param.fp_mdt_uuid));
3928                                 if (tmp == NULL) {
3929                                         ret = -ENOMEM;
3930                                         goto err_free;
3931                                 }
3932
3933                                 param.fp_mdt_uuid = tmp;
3934                         } else {
3935                                 param.fp_exclude_obd = !!neg_opt;
3936                                 param.fp_num_alloc_obds += len;
3937                                 tmp = realloc(param.fp_obd_uuid,
3938                                               param.fp_num_alloc_obds *
3939                                               sizeof(*param.fp_obd_uuid));
3940                                 if (tmp == NULL) {
3941                                         ret = -ENOMEM;
3942                                         goto err_free;
3943                                 }
3944
3945                                 param.fp_obd_uuid = tmp;
3946                         }
3947                         for (token = buf; token && *token; token = next) {
3948                                 struct obd_uuid *puuid;
3949                                 if (c == 'm') {
3950                                         puuid =
3951                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
3952                                 } else {
3953                                         puuid =
3954                                         &param.fp_obd_uuid[param.fp_num_obds++];
3955                                 }
3956                                 p = strchr(token, ',');
3957                                 next = 0;
3958                                 if (p) {
3959                                         *p = 0;
3960                                         next = p+1;
3961                                 }
3962
3963                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
3964                                         ret = -E2BIG;
3965                                         goto err_free;
3966                                 }
3967
3968                                 strncpy(puuid->uuid, token,
3969                                         sizeof(puuid->uuid));
3970                         }
3971 err_free:
3972                         if (buf)
3973                                 free(buf);
3974                         break;
3975                 }
3976 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
3977                 case 'p':
3978 #endif
3979                 case LFS_POOL_OPT:
3980                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
3981                                 fprintf(stderr,
3982                                         "Pool name %s is too long (max %d)\n",
3983                                         optarg, LOV_MAXPOOLNAME);
3984                                 ret = -1;
3985                                 goto err;
3986                         }
3987                         /*
3988                          * We do check for empty pool because empty pool
3989                          * is used to find V1 LOV attributes
3990                          */
3991                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
3992                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
3993                         param.fp_exclude_pool = !!neg_opt;
3994                         param.fp_check_pool = 1;
3995                         break;
3996 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
3997                 case 'p': /* want this for --pool, to match getstripe/find */
3998                         fprintf(stderr,
3999                                 "warning: -p deprecated, use --print0 or -0\n");
4000 #endif
4001                 case '0':
4002                         param.fp_zero_end = 1;
4003                         break;
4004                 case 'P': /* we always print, this option is a no-op */
4005                         break;
4006                 case LFS_PROJID_OPT:
4007                         rc = name2projid(&param.fp_projid, optarg);
4008                         if (rc) {
4009                                 param.fp_projid = strtoul(optarg, &endptr, 10);
4010                                 if (*endptr != '\0') {
4011                                         fprintf(stderr,
4012                                                 "Invalid project ID: %s",
4013                                                 optarg);
4014                                         ret = -1;
4015                                         goto err;
4016                                 }
4017                         }
4018                         param.fp_exclude_projid = !!neg_opt;
4019                         param.fp_check_projid = 1;
4020                         break;
4021                 case 's':
4022                         if (optarg[0] == '+') {
4023                                 param.fp_size_sign = -1;
4024                                 optarg++;
4025                         } else if (optarg[0] == '-') {
4026                                 param.fp_size_sign =  1;
4027                                 optarg++;
4028                         }
4029
4030                         ret = llapi_parse_size(optarg, &param.fp_size,
4031                                                &param.fp_size_units, 0);
4032                         if (ret) {
4033                                 fprintf(stderr, "error: bad file size '%s'\n",
4034                                         optarg);
4035                                 goto err;
4036                         }
4037                         param.fp_check_size = 1;
4038                         param.fp_exclude_size = !!neg_opt;
4039                         break;
4040                 case 'S':
4041                         if (optarg[0] == '+') {
4042                                 param.fp_stripe_size_sign = -1;
4043                                 optarg++;
4044                         } else if (optarg[0] == '-') {
4045                                 param.fp_stripe_size_sign =  1;
4046                                 optarg++;
4047                         }
4048
4049                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
4050                                                &param.fp_stripe_size_units, 0);
4051                         if (ret) {
4052                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
4053                                         optarg);
4054                                 goto err;
4055                         }
4056                         param.fp_check_stripe_size = 1;
4057                         param.fp_exclude_stripe_size = !!neg_opt;
4058                         break;
4059                 case 't':
4060                         param.fp_exclude_type = !!neg_opt;
4061                         switch (optarg[0]) {
4062                         case 'b':
4063                                 param.fp_type = S_IFBLK;
4064                                 break;
4065                         case 'c':
4066                                 param.fp_type = S_IFCHR;
4067                                 break;
4068                         case 'd':
4069                                 param.fp_type = S_IFDIR;
4070                                 break;
4071                         case 'f':
4072                                 param.fp_type = S_IFREG;
4073                                 break;
4074                         case 'l':
4075                                 param.fp_type = S_IFLNK;
4076                                 break;
4077                         case 'p':
4078                                 param.fp_type = S_IFIFO;
4079                                 break;
4080                         case 's':
4081                                 param.fp_type = S_IFSOCK;
4082                                 break;
4083                         default:
4084                                 fprintf(stderr, "error: %s: bad type '%s'\n",
4085                                         argv[0], optarg);
4086                                 ret = CMD_HELP;
4087                                 goto err;
4088                         };
4089                         break;
4090                 case 'T':
4091                         if (optarg[0] == '+') {
4092                                 param.fp_mdt_count_sign = -1;
4093                                 optarg++;
4094                         } else if (optarg[0] == '-') {
4095                                 param.fp_mdt_count_sign =  1;
4096                                 optarg++;
4097                         }
4098
4099                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
4100                         if (*endptr != '\0') {
4101                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
4102                                         optarg);
4103                                 ret = -1;
4104                                 goto err;
4105                         }
4106                         param.fp_check_mdt_count = 1;
4107                         param.fp_exclude_mdt_count = !!neg_opt;
4108                         break;
4109                 default:
4110                         ret = CMD_HELP;
4111                         goto err;
4112                 };
4113         }
4114
4115         if (pathstart == -1) {
4116                 fprintf(stderr, "error: %s: no filename|pathname\n",
4117                         argv[0]);
4118                 ret = CMD_HELP;
4119                 goto err;
4120         } else if (pathend == -1) {
4121                 /* no options */
4122                 pathend = argc;
4123         }
4124
4125         do {
4126                 rc = llapi_find(argv[pathstart], &param);
4127                 if (rc != 0 && ret == 0)
4128                         ret = rc;
4129         } while (++pathstart < pathend);
4130
4131         if (ret)
4132                 fprintf(stderr, "error: %s failed for %s.\n",
4133                         argv[0], argv[optind - 1]);
4134 err:
4135         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
4136                 free(param.fp_obd_uuid);
4137
4138         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
4139                 free(param.fp_mdt_uuid);
4140
4141         return ret;
4142 }
4143
4144 static int lfs_getstripe_internal(int argc, char **argv,
4145                                   struct find_param *param)
4146 {
4147         struct option long_opts[] = {
4148 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
4149 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
4150         { .val = LFS_COMP_COUNT_OPT,
4151                         .name = "comp-count",   .has_arg = no_argument },
4152         { .val = LFS_COMP_COUNT_OPT,
4153                 .name = "component-count",      .has_arg = no_argument },
4154         { .val = LFS_COMP_FLAGS_OPT,
4155                         .name = "comp-flags",   .has_arg = optional_argument },
4156         { .val = LFS_COMP_FLAGS_OPT,
4157                 .name = "component-flags",      .has_arg = optional_argument },
4158         { .val = LFS_COMP_START_OPT,
4159                         .name = "comp-start",   .has_arg = optional_argument },
4160         { .val = LFS_COMP_START_OPT,
4161                 .name = "component-start",      .has_arg = optional_argument },
4162         { .val = LFS_MIRROR_INDEX_OPT,
4163                 .name = "mirror-index",         .has_arg = required_argument },
4164         { .val = LFS_MIRROR_ID_OPT,
4165                 .name = "mirror-id",            .has_arg = required_argument },
4166         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
4167         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
4168 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
4169         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
4170         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4171         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
4172         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
4173         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
4174         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
4175 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
4176 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
4177         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
4178         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
4179         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
4180         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
4181         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
4182         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
4183         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4184         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
4185 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
4186 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
4187         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
4188         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4189         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4190         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
4191 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
4192         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
4193         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4194         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
4195         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
4196         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
4197 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
4198 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
4199 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
4200 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
4201         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
4202         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4203         { .name = NULL } };
4204         int c, rc;
4205         int neg_opt = 0;
4206         int pathstart = -1, pathend = -1;
4207         int isoption;
4208         char *end, *tmp;
4209
4210         while ((c = getopt_long(argc, argv,
4211                         "-cdDE::FghiI::LmMNoO:pqrRsSvy",
4212                         long_opts, NULL)) != -1) {
4213                 if (neg_opt)
4214                         --neg_opt;
4215
4216                 /* '!' is part of option */
4217                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4218                 if (!isoption && pathend != -1) {
4219                         fprintf(stderr,
4220                                 "error: %s: filename|dirname must either precede options or follow options\n",
4221                                 argv[0]);
4222                         return CMD_HELP;
4223                 }
4224                 if (!isoption && pathstart == -1)
4225                         pathstart = optind - 1;
4226                 if (isoption && pathstart != -1 && pathend == -1)
4227                         pathend = optind - 2;
4228
4229                 switch (c) {
4230                 case 1:
4231                         /* unknown: opt is "!" */
4232                         if (strcmp(optarg, "!") == 0)
4233                                 neg_opt = 2;
4234                         break;
4235                 case 'c':
4236                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4237                                 param->fp_verbose |= VERBOSE_COUNT;
4238                                 param->fp_max_depth = 0;
4239                         }
4240                         break;
4241                 case LFS_COMP_COUNT_OPT:
4242                         param->fp_verbose |= VERBOSE_COMP_COUNT;
4243                         param->fp_max_depth = 0;
4244                         break;
4245                 case LFS_COMP_FLAGS_OPT:
4246                         if (optarg != NULL) {
4247                                 rc = comp_str2flags(optarg,
4248                                                     &param->fp_comp_flags,
4249                                                     &param->fp_comp_neg_flags);
4250                                 if (rc != 0) {
4251                                         fprintf(stderr, "error: %s bad "
4252                                                 "component flags '%s'.\n",
4253                                                 argv[0], optarg);
4254                                         return CMD_HELP;
4255                                 }
4256                                 param->fp_check_comp_flags = 1;
4257                         } else {
4258                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
4259                                 param->fp_max_depth = 0;
4260                         }
4261                         break;
4262                 case LFS_COMP_START_OPT:
4263                         if (optarg != NULL) {
4264                                 tmp = optarg;
4265                                 if (tmp[0] == '+') {
4266                                         param->fp_comp_start_sign = -1;
4267                                         tmp++;
4268                                 } else if (tmp[0] == '-') {
4269                                         param->fp_comp_start_sign = 1;
4270                                         tmp++;
4271                                 }
4272                                 rc = llapi_parse_size(tmp,
4273                                                 &param->fp_comp_start,
4274                                                 &param->fp_comp_start_units, 0);
4275                                 if (rc != 0) {
4276                                         fprintf(stderr, "error: %s bad "
4277                                                 "component start '%s'.\n",
4278                                                 argv[0], tmp);
4279                                         return CMD_HELP;
4280                                 } else {
4281                                         param->fp_check_comp_start = 1;
4282                                 }
4283                         } else {
4284                                 param->fp_verbose |= VERBOSE_COMP_START;
4285                                 param->fp_max_depth = 0;
4286                         }
4287                         break;
4288                 case LFS_MIRROR_INDEX_OPT:
4289                         if (optarg[0] == '+') {
4290                                 param->fp_mirror_index_sign = -1;
4291                                 optarg++;
4292                         } else if (optarg[0] == '-') {
4293                                 param->fp_mirror_index_sign = 1;
4294                                 optarg++;
4295                         }
4296
4297                         param->fp_mirror_index = strtoul(optarg, &end, 0);
4298                         if (*end != '\0' || (param->fp_mirror_index == 0 &&
4299                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
4300                                 fprintf(stderr,
4301                                         "%s %s: invalid mirror index '%s'\n",
4302                                         progname, argv[0], optarg);
4303                                 return CMD_HELP;
4304                         }
4305                         if (param->fp_mirror_id != 0) {
4306                                 fprintf(stderr,
4307                                         "%s %s: can't specify both mirror index and mirror ID\n",
4308                                         progname, argv[0]);
4309                                 return CMD_HELP;
4310                         }
4311                         param->fp_check_mirror_index = 1;
4312                         param->fp_exclude_mirror_index = !!neg_opt;
4313                         break;
4314                 case LFS_MIRROR_ID_OPT:
4315                         if (optarg[0] == '+') {
4316                                 param->fp_mirror_id_sign = -1;
4317                                 optarg++;
4318                         } else if (optarg[0] == '-') {
4319                                 param->fp_mirror_id_sign = 1;
4320                                 optarg++;
4321                         }
4322
4323                         param->fp_mirror_id = strtoul(optarg, &end, 0);
4324                         if (*end != '\0' || (param->fp_mirror_id == 0 &&
4325                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
4326                                 fprintf(stderr,
4327                                         "%s %s: invalid mirror ID '%s'\n",
4328                                         progname, argv[0], optarg);
4329                                 return CMD_HELP;
4330                         }
4331                         if (param->fp_mirror_index != 0) {
4332                                 fprintf(stderr,
4333                                         "%s %s: can't specify both mirror index and mirror ID\n",
4334                                         progname, argv[0]);
4335                                 return CMD_HELP;
4336                         }
4337                         param->fp_check_mirror_id = 1;
4338                         param->fp_exclude_mirror_id = !!neg_opt;
4339                         break;
4340                 case 'd':
4341                         param->fp_max_depth = 0;
4342                         break;
4343                 case 'D':
4344                         param->fp_get_default_lmv = 1;
4345                         break;
4346                 case 'E':
4347                         if (optarg != NULL) {
4348                                 tmp = optarg;
4349                                 if (tmp[0] == '+') {
4350                                         param->fp_comp_end_sign = -1;
4351                                         tmp++;
4352                                 } else if (tmp[0] == '-') {
4353                                         param->fp_comp_end_sign = 1;
4354                                         tmp++;
4355                                 }
4356
4357                                 if (arg_is_eof(tmp)) {
4358                                         param->fp_comp_end = LUSTRE_EOF;
4359                                         param->fp_comp_end_units = 1;
4360                                         rc = 0;
4361                                 } else {
4362                                         rc = llapi_parse_size(tmp,
4363                                                 &param->fp_comp_end,
4364                                                 &param->fp_comp_end_units, 0);
4365                                 }
4366                                 if (rc != 0) {
4367                                         fprintf(stderr, "error: %s bad "
4368                                                 "component end '%s'.\n",
4369                                                 argv[0], tmp);
4370                                         return CMD_HELP;
4371                                 }
4372                                 param->fp_check_comp_end = 1;
4373                         } else {
4374                                 param->fp_verbose |= VERBOSE_COMP_END;
4375                                 param->fp_max_depth = 0;
4376                         }
4377                         break;
4378                 case 'F':
4379                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4380                                 param->fp_verbose |= VERBOSE_DFID;
4381                                 param->fp_max_depth = 0;
4382                         }
4383                         break;
4384                 case 'g':
4385                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4386                                 param->fp_verbose |= VERBOSE_GENERATION;
4387                                 param->fp_max_depth = 0;
4388                         }
4389                         break;
4390                 case 'i':
4391                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4392                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
4393                                 param->fp_max_depth = 0;
4394                         }
4395                         break;
4396                 case 'I':
4397                         if (optarg != NULL) {
4398                                 param->fp_comp_id = strtoul(optarg, &end, 0);
4399                                 if (*end != '\0' || param->fp_comp_id == 0 ||
4400                                     param->fp_comp_id > LCME_ID_MAX) {
4401                                         fprintf(stderr, "error: %s bad "
4402                                                 "component id '%s'\n",
4403                                                 argv[0], optarg);
4404                                         return CMD_HELP;
4405                                 } else {
4406                                         param->fp_check_comp_id = 1;
4407                                 }
4408                         } else {
4409                                 param->fp_max_depth = 0;
4410                                 param->fp_verbose |= VERBOSE_COMP_ID;
4411                         }
4412                         break;
4413                 case 'L':
4414                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4415                                 param->fp_verbose |= VERBOSE_PATTERN;
4416                                 param->fp_max_depth = 0;
4417                         }
4418                         break;
4419 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4420                 case 'M':
4421                         fprintf(stderr, "warning: '-M' deprecated"
4422                                 ", use '--mdt-index' or '-m' instead\n");
4423 #endif
4424                 case 'm':
4425                         if (!(param->fp_verbose & VERBOSE_DETAIL))
4426                                 param->fp_max_depth = 0;
4427                         param->fp_verbose |= VERBOSE_MDTINDEX;
4428                         break;
4429                 case 'N':
4430                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4431                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
4432                                 param->fp_max_depth = 0;
4433                         }
4434                         break;
4435                 case 'O':
4436                         if (param->fp_obd_uuid) {
4437                                 fprintf(stderr,
4438                                         "error: %s: only one obduuid allowed",
4439                                         argv[0]);
4440                                 return CMD_HELP;
4441                         }
4442                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
4443                         break;
4444                 case 'p':
4445                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4446                                 param->fp_verbose |= VERBOSE_POOL;
4447                                 param->fp_max_depth = 0;
4448                         }
4449                         break;
4450                 case 'q':
4451                         param->fp_quiet++;
4452                         break;
4453                 case 'r':
4454                         param->fp_recursive = 1;
4455                         break;
4456                 case 'R':
4457                         param->fp_raw = 1;
4458                         break;
4459                 case 'S':
4460                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4461                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
4462                                 param->fp_max_depth = 0;
4463                         }
4464                         break;
4465                 case 'v':
4466                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
4467                         break;
4468                 case 'y':
4469                         param->fp_yaml = 1;
4470                         break;
4471                 default:
4472                         return CMD_HELP;
4473                 }
4474         }
4475
4476         if (pathstart == -1) {
4477                 fprintf(stderr, "error: %s: no filename|pathname\n",
4478                                 argv[0]);
4479                 return CMD_HELP;
4480         } else if (pathend == -1) {
4481                 /* no options */
4482                 pathend = argc;
4483         }
4484
4485         if (pathend > argc)
4486                 return CMD_HELP;
4487
4488         if (param->fp_recursive)
4489                 param->fp_max_depth = -1;
4490         else if (param->fp_verbose & VERBOSE_DETAIL)
4491                 param->fp_max_depth = 1;
4492
4493         if (!param->fp_verbose)
4494                 param->fp_verbose = VERBOSE_DEFAULT;
4495         if (param->fp_quiet)
4496                 param->fp_verbose = VERBOSE_OBJID;
4497
4498         do {
4499                 rc = llapi_getstripe(argv[pathstart], param);
4500         } while (++pathstart < pathend && !rc);
4501
4502         if (rc)
4503                 fprintf(stderr, "error: %s failed for %s.\n",
4504                         argv[0], argv[optind - 1]);
4505         return rc;
4506 }
4507
4508 static int lfs_tgts(int argc, char **argv)
4509 {
4510         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
4511         struct find_param param;
4512         int index = 0, rc=0;
4513
4514         if (argc > 2)
4515                 return CMD_HELP;
4516
4517         if (argc == 2 && !realpath(argv[1], path)) {
4518                 rc = -errno;
4519                 fprintf(stderr, "error: invalid path '%s': %s\n",
4520                         argv[1], strerror(-rc));
4521                 return rc;
4522         }
4523
4524         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
4525                 /* Check if we have a mount point */
4526                 if (mntdir[0] == '\0')
4527                         continue;
4528
4529                 memset(&param, 0, sizeof(param));
4530                 if (!strcmp(argv[0], "mdts"))
4531                         param.fp_get_lmv = 1;
4532
4533                 rc = llapi_ostlist(mntdir, &param);
4534                 if (rc) {
4535                         fprintf(stderr, "error: %s: failed on %s\n",
4536                                 argv[0], mntdir);
4537                 }
4538                 if (path[0] != '\0')
4539                         break;
4540                 memset(mntdir, 0, PATH_MAX);
4541         }
4542
4543         return rc;
4544 }
4545
4546 static int lfs_getstripe(int argc, char **argv)
4547 {
4548         struct find_param param = { 0 };
4549
4550         param.fp_max_depth = 1;
4551         return lfs_getstripe_internal(argc, argv, &param);
4552 }
4553
4554 /* functions */
4555 static int lfs_getdirstripe(int argc, char **argv)
4556 {
4557         struct find_param param = { 0 };
4558         struct option long_opts[] = {
4559         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
4560         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4561         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
4562         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
4563         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4564         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4565         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4566         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
4567         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4568         { .name = NULL } };
4569         int c, rc;
4570
4571         param.fp_get_lmv = 1;
4572
4573         while ((c = getopt_long(argc, argv,
4574                                 "cDHimO:rtTy", long_opts, NULL)) != -1)
4575         {
4576                 switch (c) {
4577                 case 'c':
4578                 case 'T':
4579                         param.fp_verbose |= VERBOSE_COUNT;
4580                         break;
4581                 case 'D':
4582                         param.fp_get_default_lmv = 1;
4583                         break;
4584                 case 'i':
4585                 case 'm':
4586                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
4587                         break;
4588 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4589                 case 't':
4590                         fprintf(stderr, "warning: '-t' deprecated, "
4591                                 "use '--mdt-hash' or '-H' instead\n");
4592 #endif
4593                 case 'H':
4594                         param.fp_verbose |= VERBOSE_HASH_TYPE;
4595                         break;
4596                 case 'O':
4597                         if (param.fp_obd_uuid) {
4598                                 fprintf(stderr,
4599                                         "error: %s: only one obduuid allowed",
4600                                         argv[0]);
4601                                 return CMD_HELP;
4602                         }
4603                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
4604                         break;
4605                 case 'r':
4606                         param.fp_recursive = 1;
4607                         break;
4608                 case 'y':
4609                         param.fp_yaml = 1;
4610                         break;
4611                 default:
4612                         return CMD_HELP;
4613                 }
4614         }
4615
4616         if (optind >= argc)
4617                 return CMD_HELP;
4618
4619         if (param.fp_recursive)
4620                 param.fp_max_depth = -1;
4621
4622         if (!param.fp_verbose)
4623                 param.fp_verbose = VERBOSE_DEFAULT;
4624
4625         do {
4626                 rc = llapi_getstripe(argv[optind], &param);
4627         } while (++optind < argc && !rc);
4628
4629         if (rc)
4630                 fprintf(stderr, "error: %s failed for %s.\n",
4631                         argv[0], argv[optind - 1]);
4632         return rc;
4633 }
4634
4635 enum mntdf_flags {
4636         MNTDF_INODES    = 0x0001,
4637         MNTDF_COOKED    = 0x0002,
4638         MNTDF_LAZY      = 0x0004,
4639         MNTDF_VERBOSE   = 0x0008,
4640         MNTDF_SHOW      = 0x0010,
4641 };
4642
4643 #define COOK(value)                                             \
4644 ({                                                              \
4645         int radix = 0;                                          \
4646         while (value > 1024) {                                  \
4647                 value /= 1024;                                  \
4648                 radix++;                                        \
4649         }                                                       \
4650         radix;                                                  \
4651 })
4652 #define UUF     "%-20s"
4653 #define CSF     "%11s"
4654 #define CDF     "%11llu"
4655 #define HDF     "%8.1f%c"
4656 #define RSF     "%4s"
4657 #define RDF     "%3d%%"
4658
4659 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
4660 {
4661         double avail, used, ratio = 0;
4662
4663         if (inodes) {
4664                 avail = st->os_ffree;
4665                 used = st->os_files - st->os_ffree;
4666         } else {
4667                 avail = st->os_bavail;
4668                 used = st->os_blocks - st->os_bfree;
4669         }
4670         if (avail + used > 0)
4671                 ratio = used / (used + avail) * 100;
4672
4673         /* Round up to match df(1) usage percentage */
4674         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
4675 }
4676
4677 static int showdf(char *mntdir, struct obd_statfs *stat,
4678                   char *uuid, enum mntdf_flags flags,
4679                   char *type, int index, int rc)
4680 {
4681         long long avail, used, total;
4682         int ratio = 0;
4683         char *suffix = "KMGTPEZY";
4684         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
4685         char tbuf[3 * sizeof(__u64)];
4686         char ubuf[3 * sizeof(__u64)];
4687         char abuf[3 * sizeof(__u64)];
4688         char rbuf[3 * sizeof(__u64)];
4689
4690         if (!uuid || !stat)
4691                 return -EINVAL;
4692
4693         switch (rc) {
4694         case 0:
4695                 if (flags & MNTDF_INODES) {
4696                         avail = stat->os_ffree;
4697                         used = stat->os_files - stat->os_ffree;
4698                         total = stat->os_files;
4699                 } else {
4700                         int shift = flags & MNTDF_COOKED ? 0 : 10;
4701
4702                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
4703                         used  = ((stat->os_blocks - stat->os_bfree) *
4704                                  stat->os_bsize) >> shift;
4705                         total = (stat->os_blocks * stat->os_bsize) >> shift;
4706                 }
4707
4708                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
4709
4710                 if (flags & MNTDF_COOKED) {
4711                         int i;
4712                         double cook_val;
4713
4714                         cook_val = (double)total;
4715                         i = COOK(cook_val);
4716                         if (i > 0)
4717                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
4718                                          suffix[i - 1]);
4719                         else
4720                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
4721
4722                         cook_val = (double)used;
4723                         i = COOK(cook_val);
4724                         if (i > 0)
4725                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
4726                                          suffix[i - 1]);
4727                         else
4728                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
4729
4730                         cook_val = (double)avail;
4731                         i = COOK(cook_val);
4732                         if (i > 0)
4733                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
4734                                          suffix[i - 1]);
4735                         else
4736                                 snprintf(abuf, sizeof(abuf), CDF, avail);
4737                 } else {
4738                         snprintf(tbuf, sizeof(tbuf), CDF, total);
4739                         snprintf(ubuf, sizeof(tbuf), CDF, used);
4740                         snprintf(abuf, sizeof(tbuf), CDF, avail);
4741                 }
4742
4743                 sprintf(rbuf, RDF, ratio);
4744                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
4745                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
4746                 if (type)
4747                         printf("[%s:%d]", type, index);
4748
4749                 if (stat->os_state) {
4750                         /*
4751                          * Each character represents the matching
4752                          * OS_STATE_* bit.
4753                          */
4754                         const char state_names[] = "DRSI";
4755                         __u32      state;
4756                         __u32      i;
4757
4758                         printf(" ");
4759                         for (i = 0, state = stat->os_state;
4760                              state && i < sizeof(state_names); i++) {
4761                                 if (!(state & (1 << i)))
4762                                         continue;
4763                                 printf("%c", state_names[i]);
4764                                 state ^= 1 << i;
4765                         }
4766                 }
4767
4768                 printf("\n");
4769                 break;
4770         case -ENODATA:
4771                 printf(UUF": inactive device\n", uuid);
4772                 break;
4773         default:
4774                 printf(UUF": %s\n", uuid, strerror(-rc));
4775                 break;
4776         }
4777
4778         return 0;
4779 }
4780
4781 struct ll_stat_type {
4782         int   st_op;
4783         char *st_name;
4784 };
4785
4786 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
4787
4788 struct ll_statfs_data {
4789         int                     sd_index;
4790         struct obd_statfs       sd_st;
4791 };
4792
4793 struct ll_statfs_buf {
4794         int                     sb_count;
4795         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
4796 };
4797
4798 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
4799                  int ops, struct ll_statfs_buf *lsb)
4800 {
4801         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
4802         struct obd_uuid uuid_buf;
4803         char *poolname = NULL;
4804         struct ll_stat_type types[] = {
4805                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
4806                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
4807                 { .st_name = NULL } };
4808         struct ll_stat_type *tp;
4809         __u64 ost_ffree = 0;
4810         __u32 index;
4811         __u32 type;
4812         int fd;
4813         int rc = 0;
4814         int rc2;
4815
4816         if (pool) {
4817                 poolname = strchr(pool, '.');
4818                 if (poolname != NULL) {
4819                         if (strncmp(fsname, pool, strlen(fsname))) {
4820                                 fprintf(stderr, "filesystem name incorrect\n");
4821                                 return -ENODEV;
4822                         }
4823                         poolname++;
4824                 } else
4825                         poolname = pool;
4826         }
4827
4828         fd = open(mntdir, O_RDONLY);
4829         if (fd < 0) {
4830                 rc = -errno;
4831                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
4832                         strerror(errno));
4833                 return rc;
4834         }
4835
4836         if (flags & MNTDF_SHOW) {
4837                 if (flags & MNTDF_INODES)
4838                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4839                                "UUID", "Inodes", "IUsed", "IFree",
4840                                "IUse%", "Mounted on");
4841                 else
4842                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4843                                "UUID",
4844                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
4845                                "Used", "Available", "Use%", "Mounted on");
4846         }
4847
4848         for (tp = types; tp->st_name != NULL; tp++) {
4849                 bool have_ost = false;
4850
4851                 if (!(tp->st_op & ops))
4852                         continue;
4853
4854                 for (index = 0; ; index++) {
4855                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
4856                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
4857                         type = flags & MNTDF_LAZY ?
4858                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
4859                         rc2 = llapi_obd_fstatfs(fd, type, index,
4860                                                &stat_buf, &uuid_buf);
4861                         if (rc2 == -ENODEV)
4862                                 break;
4863                         if (rc2 == -EAGAIN)
4864                                 continue;
4865                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
4866                                 if (!(flags & MNTDF_VERBOSE))
4867                                         continue;
4868                         } else if (rc2 < 0 && rc == 0) {
4869                                 rc = rc2;
4870                         }
4871
4872                         /* If we have OSTs then don't report MDT block counts.
4873                          * For MDT-only filesystems the expectation is that all
4874                          * layouts have a DoM component.  For filesystems with
4875                          * OSTs, files are not necessarily going to store data
4876                          * on MDTs, and MDT space is limited to a fraction of
4877                          * OST space, so don't include it in the summary.
4878                          */
4879                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
4880                                 have_ost = true;
4881                                 sum.os_blocks = 0;
4882                                 sum.os_bfree = 0;
4883                                 sum.os_bavail = 0;
4884                         }
4885
4886                         if (poolname && tp->st_op == LL_STATFS_LOV &&
4887                             llapi_search_ost(fsname, poolname,
4888                                              obd_uuid2str(&uuid_buf)) != 1)
4889                                 continue;
4890
4891                         /* the llapi_obd_statfs() call may have returned with
4892                          * an error, but if it filled in uuid_buf we will at
4893                          * lease use that to print out a message for that OBD.
4894                          * If we didn't get anything in the uuid_buf, then fill
4895                          * it in so that we can print an error message. */
4896                         if (uuid_buf.uuid[0] == '\0')
4897                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
4898                                          "%s%04x", tp->st_name, index);
4899                         if (!rc && lsb) {
4900                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
4901                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
4902                                 lsb->sb_count++;
4903                         }
4904                         if (flags & MNTDF_SHOW)
4905                                 showdf(mntdir, &stat_buf,
4906                                        obd_uuid2str(&uuid_buf), flags,
4907                                        tp->st_name, index, rc2);
4908
4909                         if (rc2)
4910                                 continue;
4911
4912                         if (tp->st_op == LL_STATFS_LMV) {
4913                                 sum.os_ffree += stat_buf.os_ffree;
4914                                 sum.os_files += stat_buf.os_files;
4915                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
4916                                 ost_ffree += stat_buf.os_ffree;
4917                         }
4918                         sum.os_blocks += stat_buf.os_blocks *
4919                                          stat_buf.os_bsize;
4920                         sum.os_bfree  += stat_buf.os_bfree *
4921                                          stat_buf.os_bsize;
4922                         sum.os_bavail += stat_buf.os_bavail *
4923                                          stat_buf.os_bsize;
4924                 }
4925         }
4926
4927         close(fd);
4928
4929         /* If we don't have as many objects free on the OST as inodes
4930          * on the MDS, we reduce the total number of inodes to
4931          * compensate, so that the "inodes in use" number is correct.
4932          * Matches ll_statfs_internal() so the results are consistent. */
4933         if (ost_ffree < sum.os_ffree) {
4934                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
4935                 sum.os_ffree = ost_ffree;
4936         }
4937         if (flags & MNTDF_SHOW) {
4938                 printf("\n");
4939                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
4940                 printf("\n");
4941         }
4942
4943         return rc;
4944 }
4945
4946 static int ll_statfs_data_comp(const void *sd1, const void *sd2)
4947 {
4948         const struct obd_statfs *st1 = &((const struct ll_statfs_data *)sd1)->
4949                                                 sd_st;
4950         const struct obd_statfs *st2 = &((const struct ll_statfs_data *)sd2)->
4951                                                 sd_st;
4952         int r1 = obd_statfs_ratio(st1, false);
4953         int r2 = obd_statfs_ratio(st2, false);
4954         int64_t result = r1 - r2;
4955
4956         /* if both space usage are above 90, compare free inodes */
4957         if (r1 > 90 && r2 > 90)
4958                 result = st2->os_ffree - st1->os_ffree;
4959
4960         if (result < 0)
4961                 return -1;
4962         else if (result == 0)
4963                 return 0;
4964         else
4965                 return 1;
4966 }
4967
4968 /* functions */
4969 static int lfs_setdirstripe(int argc, char **argv)
4970 {
4971         char                    *dname;
4972         int                     result;
4973         struct lfs_setstripe_args        lsa = { 0 };
4974         struct llapi_stripe_param       *param = NULL;
4975         __u32                   mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
4976         char                    *end;
4977         int                     c;
4978         char                    *mode_opt = NULL;
4979         bool                    default_stripe = false;
4980         mode_t                  mode = S_IRWXU | S_IRWXG | S_IRWXO;
4981         mode_t                  previous_mode = 0;
4982         bool                    delete = false;
4983         struct ll_statfs_buf    *lsb = NULL;
4984         char                    mntdir[PATH_MAX] = "";
4985         bool                    auto_distributed = false;
4986
4987         struct option long_opts[] = {
4988         { .val = 'c',   .name = "count",        .has_arg = required_argument },
4989         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
4990         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
4991         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4992         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
4993         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4994 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
4995         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
4996         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
4997 #else
4998         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4999         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5000 #endif
5001 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5002         { .val = 'i',   .name = "index",        .has_arg = required_argument },
5003 #endif
5004         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
5005 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5006         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
5007 #endif
5008         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
5009 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
5010         { .name = NULL } };
5011
5012         setstripe_args_init(&lsa);
5013
5014         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:", long_opts,
5015                                 NULL)) >= 0) {
5016                 switch (c) {
5017                 case 0:
5018                         /* Long options. */
5019                         break;
5020                 case 'c':
5021                 case 'T':
5022                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
5023                         if (*end != '\0') {
5024                                 fprintf(stderr,
5025                                         "%s %s: invalid stripe count '%s'\n",
5026                                         progname, argv[0], optarg);
5027                                 return CMD_HELP;
5028                         }
5029                         break;
5030                 case 'd':
5031                         delete = true;
5032                         default_stripe = true;
5033                         break;
5034                 case 'D':
5035                         default_stripe = true;
5036                         break;
5037 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5038                 case 't':
5039                         fprintf(stderr, "warning: '--hash-type' and '-t' "
5040                               "deprecated, use '--mdt-hash' or '-H' instead\n");
5041 #endif
5042                 case 'H':
5043                         lsa.lsa_pattern = check_hashtype(optarg);
5044                         if (lsa.lsa_pattern == 0) {
5045                                 fprintf(stderr,
5046                                         "%s %s: bad stripe hash type '%s'\n",
5047                                         progname, argv[0], optarg);
5048                                 return CMD_HELP;
5049                         }
5050                         break;
5051                 case 'i':
5052 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
5053                 case 'm':
5054 #endif
5055 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5056                         if (strcmp(argv[optind - 1], "--index") == 0)
5057                                 fprintf(stderr,
5058                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
5059                                         progname, argv[0]);
5060 #endif
5061                         lsa.lsa_nr_tgts = parse_targets(mdts,
5062                                                 sizeof(mdts) / sizeof(__u32),
5063                                                 lsa.lsa_nr_tgts, optarg);
5064                         if (lsa.lsa_nr_tgts < 0) {
5065                                 fprintf(stderr,
5066                                         "%s %s: invalid MDT target(s) '%s'\n",
5067                                         progname, argv[0], optarg);
5068                                 return CMD_HELP;
5069                         }
5070
5071                         lsa.lsa_tgts = mdts;
5072                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5073                                 lsa.lsa_stripe_off = mdts[0];
5074                         break;
5075 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
5076                 case 'm':
5077                         fprintf(stderr, "warning: '-m' is deprecated, "
5078                                 "use '--mode' or '-o' instead\n");
5079 #endif
5080                 case 'o':
5081                         mode_opt = optarg;
5082                         break;
5083                 default:
5084                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5085                                 progname, argv[0], argv[optind - 1]);
5086                         return CMD_HELP;
5087                 }
5088         }
5089
5090         if (optind == argc) {
5091                 fprintf(stderr, "%s %s: DIR must be specified\n",
5092                         progname, argv[0]);
5093                 return CMD_HELP;
5094         }
5095
5096         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
5097             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT) {
5098                 fprintf(stderr,
5099                         "%s %s: stripe offset and count must be specified\n",
5100                         progname, argv[0]);
5101                 return CMD_HELP;
5102         }
5103
5104         if (delete &&
5105             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
5106              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
5107                 fprintf(stderr,
5108                         "%s %s: cannot specify -d with -c or -i options\n",
5109                         progname, argv[0]);
5110                 return CMD_HELP;
5111         }
5112
5113         if (mode_opt != NULL) {
5114                 mode = strtoul(mode_opt, &end, 8);
5115                 if (*end != '\0') {
5116                         fprintf(stderr,
5117                                 "%s %s: bad MODE '%s'\n",
5118                                 progname, argv[0], mode_opt);
5119                         return CMD_HELP;
5120                 }
5121                 previous_mode = umask(0);
5122         }
5123
5124         /*
5125          * initialize stripe parameters, in case param is converted to specific,
5126          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
5127          */
5128         param = calloc(1, offsetof(typeof(*param),
5129                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
5130                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
5131         if (param == NULL) {
5132                 fprintf(stderr,
5133                         "%s %s: cannot allocate memory for parameters: %s\n",
5134                         progname, argv[0], strerror(ENOMEM));
5135                 return CMD_HELP;
5136         }
5137
5138         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
5139                 param->lsp_stripe_count = lsa.lsa_stripe_count;
5140         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5141                 param->lsp_stripe_offset = -1;
5142         else
5143                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
5144         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
5145                 param->lsp_stripe_pattern = lsa.lsa_pattern;
5146         else
5147                 param->lsp_stripe_pattern = LMV_HASH_TYPE_FNV_1A_64;
5148         param->lsp_pool = lsa.lsa_pool_name;
5149         param->lsp_is_specific = false;
5150         if (lsa.lsa_nr_tgts > 1) {
5151                 if (lsa.lsa_stripe_count > 0 &&
5152                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
5153                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
5154                         fprintf(stderr, "error: %s: stripe count %lld doesn't "
5155                                 "match the number of MDTs: %d\n",
5156                                 argv[0], lsa.lsa_stripe_count, lsa.lsa_nr_tgts);
5157                         free(param);
5158                         return CMD_HELP;
5159                 }
5160
5161                 param->lsp_is_specific = true;
5162                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
5163                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
5164         }
5165
5166         dname = argv[optind];
5167         do {
5168                 if (default_stripe) {
5169                         result = llapi_dir_set_default_lmv(dname, param);
5170                 } else {
5171                         /* if current \a dname isn't under the same \a mntdir
5172                          * as the last one, and the last one was
5173                          * auto-distributed, restore \a param.
5174                          */
5175                         if (mntdir[0] != '\0' &&
5176                             strncmp(dname, mntdir, strlen(mntdir)) &&
5177                             auto_distributed) {
5178                                 param->lsp_is_specific = false;
5179                                 param->lsp_stripe_offset = -1;
5180                                 auto_distributed = false;
5181                         }
5182
5183                         if (!param->lsp_is_specific &&
5184                             param->lsp_stripe_offset == -1) {
5185                                 char path[PATH_MAX] = "";
5186
5187                                 if (!lsb) {
5188                                         lsb = malloc(sizeof(*lsb));
5189                                         if (!lsb) {
5190                                                 result = -ENOMEM;
5191                                                 break;
5192                                         }
5193                                 }
5194                                 lsb->sb_count = 0;
5195
5196                                 /* use mntdir for dirname() temporarily */
5197                                 strncpy(mntdir, dname, sizeof(mntdir));
5198                                 if (!realpath(dirname(mntdir), path)) {
5199                                         result = -errno;
5200                                         fprintf(stderr,
5201                                                 "error: invalid path '%s': %s\n",
5202                                                 argv[optind], strerror(errno));
5203                                         break;
5204                                 }
5205                                 mntdir[0] = '\0';
5206
5207                                 result = llapi_search_mounts(path, 0, mntdir,
5208                                                              NULL);
5209                                 if (result < 0 || mntdir[0] == '\0') {
5210                                         fprintf(stderr,
5211                                                 "No suitable Lustre mount found\n");
5212                                         break;
5213                                 }
5214
5215                                 result = mntdf(mntdir, NULL, NULL, 0,
5216                                                LL_STATFS_LMV, lsb);
5217                                 if (result < 0)
5218                                         break;
5219
5220                                 if (param->lsp_stripe_count > lsb->sb_count) {
5221                                         fprintf(stderr,
5222                                                 "error: stripe count %d is too big\n",
5223                                                 param->lsp_stripe_count);
5224                                         result = -ERANGE;
5225                                         break;
5226                                 }
5227
5228                                 qsort(lsb->sb_buf, lsb->sb_count,
5229                                       sizeof(struct ll_statfs_data),
5230                                       ll_statfs_data_comp);
5231
5232                                 auto_distributed = true;
5233                         }
5234
5235                         if (auto_distributed) {
5236                                 int r;
5237                                 int nr = MAX(param->lsp_stripe_count,
5238                                              lsb->sb_count / 2);
5239
5240                                 /* don't use server whose usage is above 90% */
5241                                 while (nr != param->lsp_stripe_count &&
5242                                        obd_statfs_ratio(&lsb->sb_buf[nr].sd_st,
5243                                                         false) > 90)
5244                                         nr = MAX(param->lsp_stripe_count,
5245                                                  nr / 2);
5246
5247                                 /* get \a r between [0, nr) */
5248                                 r = rand() % nr;
5249
5250                                 param->lsp_stripe_offset =
5251                                         lsb->sb_buf[r].sd_index;
5252                                 if (param->lsp_stripe_count > 1) {
5253                                         int i = 0;
5254
5255                                         param->lsp_is_specific = true;
5256                                         for (; i < param->lsp_stripe_count; i++)
5257                                                 param->lsp_tgts[(i + r) % nr] =
5258                                                         lsb->sb_buf[i].sd_index;
5259                                 }
5260                         }
5261
5262                         result = llapi_dir_create(dname, mode, param);
5263                 }
5264
5265                 if (result) {
5266                         fprintf(stderr,
5267                                 "%s setdirstripe: cannot create stripe dir '%s': %s\n",
5268                                 progname, dname, strerror(-result));
5269                         break;
5270                 }
5271                 dname = argv[++optind];
5272         } while (dname != NULL);
5273
5274         if (mode_opt != NULL)
5275                 umask(previous_mode);
5276
5277         free(lsb);
5278         free(param);
5279         return result;
5280 }
5281
5282 /* functions */
5283 static int lfs_rmentry(int argc, char **argv)
5284 {
5285         char *dname;
5286         int   index;
5287         int   result = 0;
5288
5289         if (argc <= 1) {
5290                 fprintf(stderr, "error: %s: missing dirname\n",
5291                         argv[0]);
5292                 return CMD_HELP;
5293         }
5294
5295         index = 1;
5296         dname = argv[index];
5297         while (dname != NULL) {
5298                 result = llapi_direntry_remove(dname);
5299                 if (result) {
5300                         fprintf(stderr, "error: %s: remove dir entry '%s' "
5301                                 "failed\n", argv[0], dname);
5302                         break;
5303                 }
5304                 dname = argv[++index];
5305         }
5306         return result;
5307 }
5308
5309 static int lfs_mv(int argc, char **argv)
5310 {
5311         struct lmv_user_md lmu = { LMV_USER_MAGIC };
5312         struct find_param param = {
5313                 .fp_max_depth = -1,
5314                 .fp_mdt_index = -1,
5315         };
5316         char *end;
5317         int c;
5318         int rc = 0;
5319         struct option long_opts[] = {
5320         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5321         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5322         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5323         { .name = NULL } };
5324
5325         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
5326                 switch (c) {
5327 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5328                 case 'M':
5329                         fprintf(stderr, "warning: '-M' deprecated"
5330                                 ", use '--mdt-index' or '-m' instead\n");
5331 #endif
5332                 case 'm':
5333                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
5334                         if (*end != '\0') {
5335                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
5336                                         progname, optarg);
5337                                 return CMD_HELP;
5338                         }
5339                         break;
5340                 case 'v':
5341                         param.fp_verbose = VERBOSE_DETAIL;
5342                         break;
5343                 default:
5344                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
5345                                 progname, argv[optind - 1]);
5346                         return CMD_HELP;
5347                 }
5348         }
5349
5350         if (lmu.lum_stripe_offset == -1) {
5351                 fprintf(stderr, "%s mv: MDT index must be specified\n",
5352                         progname);
5353                 return CMD_HELP;
5354         }
5355
5356         if (optind >= argc) {
5357                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
5358                 return CMD_HELP;
5359         }
5360
5361
5362         /* initialize migrate mdt parameters */
5363         param.fp_lmv_md = &lmu;
5364         param.fp_migrate = 1;
5365         rc = llapi_migrate_mdt(argv[optind], &param);
5366         if (rc != 0)
5367                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
5368                         progname, argv[optind], param.fp_mdt_index,
5369                         strerror(-rc));
5370         return rc;
5371 }
5372
5373 static int lfs_osts(int argc, char **argv)
5374 {
5375         return lfs_tgts(argc, argv);
5376 }
5377
5378 static int lfs_mdts(int argc, char **argv)
5379 {
5380         return lfs_tgts(argc, argv);
5381 }
5382
5383 static int lfs_df(int argc, char **argv)
5384 {
5385         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5386         enum mntdf_flags flags = MNTDF_SHOW;
5387         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
5388         int c, rc = 0, index = 0;
5389         char fsname[PATH_MAX] = "", *pool_name = NULL;
5390         struct option long_opts[] = {
5391         { .val = 'h',   .name = "human-readable",
5392                                                 .has_arg = no_argument },
5393         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
5394         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
5395         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
5396         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5397         { .name = NULL} };
5398
5399         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
5400                 switch (c) {
5401                 case 'h':
5402                         flags |= MNTDF_COOKED;
5403                         break;
5404                 case 'i':
5405                         flags |= MNTDF_INODES;
5406                         break;
5407                 case 'l':
5408                         flags |= MNTDF_LAZY;
5409                         break;
5410                 case 'p':
5411                         pool_name = optarg;
5412                         break;
5413                 case 'v':
5414                         flags |= MNTDF_VERBOSE;
5415                         break;
5416                 default:
5417                         return CMD_HELP;
5418                 }
5419         }
5420         if (optind < argc && !realpath(argv[optind], path)) {
5421                 rc = -errno;
5422                 fprintf(stderr, "error: invalid path '%s': %s\n",
5423                         argv[optind], strerror(-rc));
5424                 return rc;
5425         }
5426
5427         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5428                 /* Check if we have a mount point */
5429                 if (mntdir[0] == '\0')
5430                         continue;
5431
5432                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
5433                 if (rc || path[0] != '\0')
5434                         break;
5435                 fsname[0] = '\0'; /* avoid matching in next loop */
5436                 mntdir[0] = '\0'; /* avoid matching in next loop */
5437         }
5438
5439         return rc;
5440 }
5441
5442 static int lfs_getname(int argc, char **argv)
5443 {
5444         char mntdir[PATH_MAX] = "", path[PATH_MAX] = "", fsname[PATH_MAX] = "";
5445         int rc = 0, index = 0, c;
5446         char buf[sizeof(struct obd_uuid)];
5447
5448         while ((c = getopt(argc, argv, "h")) != -1)
5449                 return CMD_HELP;
5450
5451         if (optind == argc) { /* no paths specified, get all paths. */
5452                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5453                         rc = llapi_getname(mntdir, buf, sizeof(buf));
5454                         if (rc < 0) {
5455                                 fprintf(stderr,
5456                                         "cannot get name for `%s': %s\n",
5457                                         mntdir, strerror(-rc));
5458                                 break;
5459                         }
5460
5461                         printf("%s %s\n", buf, mntdir);
5462
5463                         path[0] = fsname[0] = mntdir[0] = 0;
5464                 }
5465         } else { /* paths specified, only attempt to search these. */
5466                 for (; optind < argc; optind++) {
5467                         rc = llapi_getname(argv[optind], buf, sizeof(buf));
5468                         if (rc < 0) {
5469                                 fprintf(stderr,
5470                                         "cannot get name for `%s': %s\n",
5471                                         argv[optind], strerror(-rc));
5472                                 break;
5473                         }
5474
5475                         printf("%s %s\n", buf, argv[optind]);
5476                 }
5477         }
5478         return rc;
5479 }
5480
5481 static int lfs_check(int argc, char **argv)
5482 {
5483         char mntdir[PATH_MAX] = {'\0'};
5484         int num_types = 1;
5485         char *obd_types[3];
5486         char obd_type1[4];
5487         char obd_type2[4];
5488         char obd_type3[4];
5489         int rc;
5490
5491         if (argc != 2) {
5492                 fprintf(stderr, "%s check: server type must be specified\n",
5493                         progname);
5494                 return CMD_HELP;
5495         }
5496
5497         obd_types[0] = obd_type1;
5498         obd_types[1] = obd_type2;
5499         obd_types[2] = obd_type3;
5500
5501         if (strcmp(argv[1], "osts") == 0) {
5502                 strcpy(obd_types[0], "osc");
5503         } else if (strcmp(argv[1], "mdts") == 0 ||
5504                    strcmp(argv[1], "mds") == 0) {
5505                 strcpy(obd_types[0], "mdc");
5506         } else if (strcmp(argv[1], "mgts") == 0) {
5507                 strcpy(obd_types[0], "mgc");
5508         } else if (strcmp(argv[1], "all") == 0 ||
5509                    strcmp(argv[1], "servers") == 0) {
5510                 num_types = 3;
5511                 strcpy(obd_types[0], "osc");
5512                 strcpy(obd_types[1], "mdc");
5513                 strcpy(obd_types[2], "mgc");
5514         } else {
5515                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
5516                         progname, argv[1]);
5517                 return CMD_HELP;
5518         }
5519
5520         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
5521         if (rc < 0 || mntdir[0] == '\0') {
5522                 fprintf(stderr,
5523                         "%s check: cannot find mounted Lustre filesystem: %s\n",
5524                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
5525                 return rc;
5526         }
5527
5528         rc = llapi_target_check(num_types, obd_types, mntdir);
5529         if (rc)
5530                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
5531                         progname, argv[1], strerror(-rc));
5532
5533         return rc;
5534
5535 }
5536
5537 #ifdef HAVE_SYS_QUOTA_H
5538 #define ARG2INT(nr, str, msg)                                           \
5539 do {                                                                    \
5540         char *endp;                                                     \
5541         nr = strtol(str, &endp, 0);                                     \
5542         if (*endp != '\0') {                                            \
5543                 fprintf(stderr, "%s: bad %s '%s'\n",                    \
5544                         progname, msg, str);                            \
5545                 return CMD_HELP;                                        \
5546         }                                                               \
5547 } while (0)
5548
5549 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
5550
5551 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
5552  * returns the value or ULONG_MAX on integer overflow or incorrect format
5553  * Notes:
5554  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
5555  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
5556  *        3. empty integer value is interpreted as 0
5557  */
5558 static unsigned long str2sec(const char* timestr)
5559 {
5560         const char spec[] = "smhdw";
5561         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5562         unsigned long val = 0;
5563         char *tail;
5564
5565         if (strpbrk(timestr, spec) == NULL) {
5566                 /* no specifiers inside the time string,
5567                    should treat it as an integer value */
5568                 val = strtoul(timestr, &tail, 10);
5569                 return *tail ? ULONG_MAX : val;
5570         }
5571
5572         /* format string is XXwXXdXXhXXmXXs */
5573         while (*timestr) {
5574                 unsigned long v;
5575                 int ind;
5576                 char* ptr;
5577
5578                 v = strtoul(timestr, &tail, 10);
5579                 if (v == ULONG_MAX || *tail == '\0')
5580                         /* value too large (ULONG_MAX or more)
5581                            or missing specifier */
5582                         goto error;
5583
5584                 ptr = strchr(spec, *tail);
5585                 if (ptr == NULL)
5586                         /* unknown specifier */
5587                         goto error;
5588
5589                 ind = ptr - spec;
5590
5591                 /* check if product will overflow the type */
5592                 if (!(v < ULONG_MAX / mult[ind]))
5593                         goto error;
5594
5595                 ADD_OVERFLOW(val, mult[ind] * v);
5596                 if (val == ULONG_MAX)
5597                         goto error;
5598
5599                 timestr = tail + 1;
5600         }
5601
5602         return val;
5603
5604 error:
5605         return ULONG_MAX;
5606 }
5607
5608 #define ARG2ULL(nr, str, def_units)                                     \
5609 do {                                                                    \
5610         unsigned long long limit, units = def_units;                    \
5611         int rc;                                                         \
5612                                                                         \
5613         rc = llapi_parse_size(str, &limit, &units, 1);                  \
5614         if (rc < 0) {                                                   \
5615                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
5616                         progname, str);                                 \
5617                 return CMD_HELP;                                        \
5618         }                                                               \
5619         nr = limit;                                                     \
5620 } while (0)
5621
5622 static inline int has_times_option(int argc, char **argv)
5623 {
5624         int i;
5625
5626         for (i = 1; i < argc; i++)
5627                 if (!strcmp(argv[i], "-t"))
5628                         return 1;
5629
5630         return 0;
5631 }
5632
5633 int lfs_setquota_times(int argc, char **argv)
5634 {
5635         int c, rc;
5636         struct if_quotactl qctl;
5637         char *mnt, *obd_type = (char *)qctl.obd_type;
5638         struct obd_dqblk *dqb = &qctl.qc_dqblk;
5639         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
5640         struct option long_opts[] = {
5641         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
5642         { .val = 'g',   .name = "group",        .has_arg = no_argument },
5643         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
5644         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
5645         { .val = 't',   .name = "times",        .has_arg = no_argument },
5646         { .val = 'u',   .name = "user",         .has_arg = no_argument },
5647         { .name = NULL } };
5648         int qtype;
5649
5650         memset(&qctl, 0, sizeof(qctl));
5651         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
5652         qctl.qc_type = ALLQUOTA;
5653
5654         while ((c = getopt_long(argc, argv, "b:gi:ptu",
5655                                 long_opts, NULL)) != -1) {
5656                 switch (c) {
5657                 case 'u':
5658                         qtype = USRQUOTA;
5659                         goto quota_type;
5660                 case 'g':
5661                         qtype = GRPQUOTA;
5662                         goto quota_type;
5663                 case 'p':
5664                         qtype = PRJQUOTA;
5665 quota_type:
5666                         if (qctl.qc_type != ALLQUOTA) {
5667                                 fprintf(stderr, "error: -u/g/p can't be used "
5668                                                 "more than once\n");
5669                                 return CMD_HELP;
5670                         }
5671                         qctl.qc_type = qtype;
5672                         break;
5673                 case 'b':
5674                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
5675                                 fprintf(stderr, "error: bad block-grace: %s\n",
5676                                         optarg);
5677                                 return CMD_HELP;
5678                         }
5679                         dqb->dqb_valid |= QIF_BTIME;
5680                         break;
5681                 case 'i':
5682                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
5683                                 fprintf(stderr, "error: bad inode-grace: %s\n",
5684                                         optarg);
5685                                 return CMD_HELP;
5686                         }
5687                         dqb->dqb_valid |= QIF_ITIME;
5688                         break;
5689                 case 't': /* Yes, of course! */
5690                         break;
5691                 default: /* getopt prints error message for us when opterr != 0 */
5692                         return CMD_HELP;
5693                 }
5694         }
5695
5696         if (qctl.qc_type == ALLQUOTA) {
5697                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
5698                 return CMD_HELP;
5699         }
5700
5701         if (optind != argc - 1) {
5702                 fprintf(stderr, "error: unexpected parameters encountered\n");
5703                 return CMD_HELP;
5704         }
5705
5706         if ((dqb->dqb_valid | QIF_BTIME && dqi->dqi_bgrace >= UINT_MAX) ||
5707             (dqb->dqb_valid | QIF_ITIME && dqi->dqi_igrace >= UINT_MAX)) {
5708                 fprintf(stderr, "error: grace time is too large\n");
5709                 return CMD_HELP;
5710         }
5711
5712         mnt = argv[optind];
5713         rc = llapi_quotactl(mnt, &qctl);
5714         if (rc) {
5715                 if (*obd_type)
5716                         fprintf(stderr, "%s %s ", obd_type,
5717                                 obd_uuid2str(&qctl.obd_uuid));
5718                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
5719                 return rc;
5720         }
5721
5722         return 0;
5723 }
5724
5725 #define BSLIMIT (1 << 0)
5726 #define BHLIMIT (1 << 1)
5727 #define ISLIMIT (1 << 2)
5728 #define IHLIMIT (1 << 3)
5729
5730 int lfs_setquota(int argc, char **argv)
5731 {
5732         int c, rc = 0;
5733         struct if_quotactl qctl;
5734         char *mnt, *obd_type = (char *)qctl.obd_type;
5735         struct obd_dqblk *dqb = &qctl.qc_dqblk;
5736         struct option long_opts[] = {
5737         { .val = 'b',   .name = "block-softlimit",
5738                                                 .has_arg = required_argument },
5739         { .val = 'B',   .name = "block-hardlimit",
5740                                                 .has_arg = required_argument },
5741         { .val = 'd',   .name = "default",      .has_arg = no_argument },
5742         { .val = 'g',   .name = "group",        .has_arg = required_argument },
5743         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
5744         { .val = 'i',   .name = "inode-softlimit",
5745                                                 .has_arg = required_argument },
5746         { .val = 'I',   .name = "inode-hardlimit",
5747                                                 .has_arg = required_argument },
5748         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
5749         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
5750         { .val = 'u',   .name = "user",         .has_arg = required_argument },
5751         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
5752         { .name = NULL } };
5753         unsigned limit_mask = 0;
5754         char *endptr;
5755         bool use_default = false;
5756         int qtype;
5757
5758         if (has_times_option(argc, argv))
5759                 return lfs_setquota_times(argc, argv);
5760
5761         memset(&qctl, 0, sizeof(qctl));
5762         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
5763         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
5764                                   * so it can be used as a marker that qc_type
5765                                   * isn't reinitialized from command line */
5766
5767         while ((c = getopt_long(argc, argv, "b:B:dg:Gi:I:p:Pu:U",
5768                 long_opts, NULL)) != -1) {
5769                 switch (c) {
5770                 case 'U':
5771                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5772                         qtype = USRQUOTA;
5773                         qctl.qc_id = 0;
5774                         goto quota_type_def;
5775                 case 'u':
5776                         qtype = USRQUOTA;
5777                         rc = name2uid(&qctl.qc_id, optarg);
5778                         goto quota_type;
5779                 case 'G':
5780                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5781                         qtype = GRPQUOTA;
5782                         qctl.qc_id = 0;
5783                         goto quota_type_def;
5784                 case 'g':
5785                         qtype = GRPQUOTA;
5786                         rc = name2gid(&qctl.qc_id, optarg);
5787                         goto quota_type;
5788                 case 'P':
5789                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5790                         qtype = PRJQUOTA;
5791                         qctl.qc_id = 0;
5792                         goto quota_type_def;
5793                 case 'p':
5794                         qtype = PRJQUOTA;
5795                         rc = name2projid(&qctl.qc_id, optarg);
5796 quota_type:
5797                         if (rc) {
5798                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
5799                                 if (*endptr != '\0') {
5800                                         fprintf(stderr, "%s setquota: invalid"
5801                                                 " id '%s'\n", progname, optarg);
5802                                         return -1;
5803                                 }
5804                         }
5805
5806                         if (qctl.qc_id == 0) {
5807                                 fprintf(stderr, "%s setquota: can't set quota"
5808                                         " for root usr/group/project.\n",
5809                                         progname);
5810                                 return -1;
5811                         }
5812
5813 quota_type_def:
5814                         if (qctl.qc_type != ALLQUOTA) {
5815                                 fprintf(stderr,
5816                                         "%s setquota: only one of -u, -U, -g,"
5817                                         " -G, -p or -P may be specified\n",
5818                                         progname);
5819                                 return CMD_HELP;
5820                         }
5821                         qctl.qc_type = qtype;
5822                         break;
5823                 case 'd':
5824                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5825                         use_default = true;
5826                         break;
5827                 case 'b':
5828                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
5829                         dqb->dqb_bsoftlimit >>= 10;
5830                         limit_mask |= BSLIMIT;
5831                         if (dqb->dqb_bsoftlimit &&
5832                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
5833                                 fprintf(stderr,
5834                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\n"
5835                                         "See '%s help setquota' or Lustre manual for details\n",
5836                                         progname, dqb->dqb_bsoftlimit,
5837                                         progname);
5838                         break;
5839                 case 'B':
5840                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
5841                         dqb->dqb_bhardlimit >>= 10;
5842                         limit_mask |= BHLIMIT;
5843                         if (dqb->dqb_bhardlimit &&
5844                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
5845                                 fprintf(stderr,
5846                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
5847                                         "See '%s help setquota' or Lustre manual for details\n",
5848                                         progname, dqb->dqb_bhardlimit,
5849                                         progname);
5850                         break;
5851                 case 'i':
5852                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
5853                         limit_mask |= ISLIMIT;
5854                         if (dqb->dqb_isoftlimit &&
5855                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
5856                                 fprintf(stderr,
5857                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\n"
5858                                         "See '%s help setquota' or Lustre manual for details\n",
5859                                         progname, dqb->dqb_isoftlimit,
5860                                         progname);
5861                         break;
5862                 case 'I':
5863                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
5864                         limit_mask |= IHLIMIT;
5865                         if (dqb->dqb_ihardlimit &&
5866                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
5867                                 fprintf(stderr,
5868                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\n"
5869                                         "See '%s help setquota' or Lustre manual for details\n",
5870                                         progname, dqb->dqb_ihardlimit,
5871                                         progname);
5872                         break;
5873                 default:
5874                         fprintf(stderr,
5875                                 "%s setquota: unrecognized option '%s'\n",
5876                                 progname, argv[optind - 1]);
5877                         return CMD_HELP;
5878                 }
5879         }
5880
5881         if (qctl.qc_type == ALLQUOTA) {
5882                 fprintf(stderr,
5883                         "%s setquota: either -u or -g must be specified\n",
5884                         progname);
5885                 return CMD_HELP;
5886         }
5887
5888         if (!use_default && limit_mask == 0) {
5889                 fprintf(stderr,
5890                         "%s setquota: at least one limit must be specified\n",
5891                         progname);
5892                 return CMD_HELP;
5893         }
5894
5895         if (use_default && limit_mask != 0) {
5896                 fprintf(stderr,
5897                         "%s setquota: limits should not be specified when"
5898                         " using default quota\n",
5899                         progname);
5900                 return CMD_HELP;
5901         }
5902
5903         if (use_default && qctl.qc_id == 0) {
5904                 fprintf(stderr,
5905                         "%s setquota: can not set default quota for root"
5906                         " user/group/project\n",
5907                         progname);
5908                 return CMD_HELP;
5909         }
5910
5911         if (optind != argc - 1) {
5912                 fprintf(stderr,
5913                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
5914                         progname, argv[optind]);
5915                 return CMD_HELP;
5916         }
5917
5918         mnt = argv[optind];
5919
5920         if (use_default) {
5921                 dqb->dqb_bhardlimit = 0;
5922                 dqb->dqb_bsoftlimit = 0;
5923                 dqb->dqb_ihardlimit = 0;
5924                 dqb->dqb_isoftlimit = 0;
5925                 dqb->dqb_itime = 0;
5926                 dqb->dqb_btime = 0;
5927                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
5928         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
5929                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
5930                 /* sigh, we can't just set blimits/ilimits */
5931                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
5932                                                .qc_type = qctl.qc_type,
5933                                                .qc_id   = qctl.qc_id};
5934
5935                 rc = llapi_quotactl(mnt, &tmp_qctl);
5936                 if (rc < 0)
5937                         return rc;
5938
5939                 if (!(limit_mask & BHLIMIT))
5940                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
5941                 if (!(limit_mask & BSLIMIT))
5942                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
5943                 if (!(limit_mask & IHLIMIT))
5944                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
5945                 if (!(limit_mask & ISLIMIT))
5946                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
5947
5948                 /* Keep grace times if we have got no softlimit arguments */
5949                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
5950                         dqb->dqb_valid |= QIF_BTIME;
5951                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
5952                 }
5953
5954                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
5955                         dqb->dqb_valid |= QIF_ITIME;
5956                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
5957                 }
5958         }
5959
5960         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
5961         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
5962
5963         rc = llapi_quotactl(mnt, &qctl);
5964         if (rc) {
5965                 if (*obd_type)
5966                         fprintf(stderr,
5967                                 "%s setquota: cannot quotactl '%s' '%s': %s",
5968                                 progname, obd_type,
5969                                 obd_uuid2str(&qctl.obd_uuid), strerror(-rc));
5970                 return rc;
5971         }
5972
5973         return 0;
5974 }
5975
5976 /* Converts seconds value into format string
5977  * result is returned in buf
5978  * Notes:
5979  *        1. result is in descenting order: 1w2d3h4m5s
5980  *        2. zero fields are not filled (except for p. 3): 5d1s
5981  *        3. zero seconds value is presented as "0s"
5982  */
5983 static char * __sec2str(time_t seconds, char *buf)
5984 {
5985         const char spec[] = "smhdw";
5986         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5987         unsigned long c;
5988         char *tail = buf;
5989         int i;
5990
5991         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
5992                 c = seconds / mult[i];
5993
5994                 if (c > 0 || (i == 0 && buf == tail))
5995                         tail += snprintf(tail, 40-(tail-buf), "%lu%c", c, spec[i]);
5996
5997                 seconds %= mult[i];
5998         }
5999
6000         return tail;
6001 }
6002
6003 static void sec2str(time_t seconds, char *buf, int rc)
6004 {
6005         char *tail = buf;
6006
6007         if (rc)
6008                 *tail++ = '[';
6009
6010         tail = __sec2str(seconds, tail);
6011
6012         if (rc && tail - buf < 39) {
6013                 *tail++ = ']';
6014                 *tail++ = 0;
6015         }
6016 }
6017
6018 static void diff2str(time_t seconds, char *buf, time_t now)
6019 {
6020
6021         buf[0] = 0;
6022         if (!seconds)
6023                 return;
6024         if (seconds <= now) {
6025                 strcpy(buf, "none");
6026                 return;
6027         }
6028         __sec2str(seconds - now, buf);
6029 }
6030
6031 static void print_quota_title(char *name, struct if_quotactl *qctl,
6032                               bool human_readable, bool show_default)
6033 {
6034         if (show_default) {
6035                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
6036                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
6037                        "Filesystem", "bquota", "blimit", "bgrace",
6038                        "iquota", "ilimit", "igrace");
6039         } else {
6040                 printf("Disk quotas for %s %s (%cid %u):\n",
6041                        qtype_name(qctl->qc_type), name,
6042                        *qtype_name(qctl->qc_type), qctl->qc_id);
6043                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
6044                        "Filesystem", human_readable ? "used" : "kbytes",
6045                        "quota", "limit", "grace",
6046                        "files", "quota", "limit", "grace");
6047         }
6048 }
6049
6050 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
6051 {
6052         if (!h) {
6053                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
6054         } else {
6055                 if (num >> 40)
6056                         snprintf(buf, buflen, "%5.4gP",
6057                                  (double)num / ((__u64)1 << 40));
6058                 else if (num >> 30)
6059                         snprintf(buf, buflen, "%5.4gT",
6060                                  (double)num / (1 << 30));
6061                 else if (num >> 20)
6062                         snprintf(buf, buflen, "%5.4gG",
6063                                  (double)num / (1 << 20));
6064                 else if (num >> 10)
6065                         snprintf(buf, buflen, "%5.4gM",
6066                                  (double)num / (1 << 10));
6067                 else
6068                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
6069         }
6070 }
6071
6072 #define STRBUF_LEN      32
6073 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
6074                         int rc, bool h, bool show_default)
6075 {
6076         time_t now;
6077
6078         time(&now);
6079
6080         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
6081             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) {
6082                 int bover = 0, iover = 0;
6083                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
6084                 char numbuf[3][STRBUF_LEN];
6085                 char timebuf[40];
6086                 char strbuf[STRBUF_LEN];
6087
6088                 if (dqb->dqb_bhardlimit &&
6089                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
6090                         bover = 1;
6091                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
6092                         if (dqb->dqb_btime > now) {
6093                                 bover = 2;
6094                         } else {
6095                                 bover = 3;
6096                         }
6097                 }
6098
6099                 if (dqb->dqb_ihardlimit &&
6100                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
6101                         iover = 1;
6102                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
6103                         if (dqb->dqb_itime > now) {
6104                                 iover = 2;
6105                         } else {
6106                                 iover = 3;
6107                         }
6108                 }
6109
6110
6111                 if (strlen(mnt) > 15)
6112                         printf("%s\n%15s", mnt, "");
6113                 else
6114                         printf("%15s", mnt);
6115
6116                 if (bover)
6117                         diff2str(dqb->dqb_btime, timebuf, now);
6118                 else if (show_default)
6119                         snprintf(timebuf, sizeof(timebuf), "%llu",
6120                                  dqb->dqb_btime);
6121
6122                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
6123                            strbuf, sizeof(strbuf), h);
6124                 if (rc == -EREMOTEIO)
6125                         sprintf(numbuf[0], "%s*", strbuf);
6126                 else
6127                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
6128                                 "%s" : "[%s]", strbuf);
6129
6130                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
6131                 if (type == QC_GENERAL)
6132                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
6133                                 "%s" : "[%s]", strbuf);
6134                 else
6135                         sprintf(numbuf[1], "%s", "-");
6136
6137                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
6138                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
6139                         "%s" : "[%s]", strbuf);
6140
6141                 if (show_default)
6142                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6143                 else
6144                         printf(" %7s%c %6s %7s %7s",
6145                                numbuf[0], bover ? '*' : ' ', numbuf[1],
6146                                numbuf[2], bover > 1 ? timebuf : "-");
6147
6148
6149                 if (iover)
6150                         diff2str(dqb->dqb_itime, timebuf, now);
6151                 else if (show_default)
6152                         snprintf(timebuf, sizeof(timebuf), "%llu",
6153                                  dqb->dqb_itime);
6154
6155                 snprintf(numbuf[0], sizeof(numbuf),
6156                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
6157                          (uintmax_t)dqb->dqb_curinodes);
6158
6159                 if (type == QC_GENERAL)
6160                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
6161                                 "%ju" : "[%ju]",
6162                                 (uintmax_t)dqb->dqb_isoftlimit);
6163                 else
6164                         sprintf(numbuf[1], "%s", "-");
6165
6166                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
6167                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
6168
6169                 if (show_default)
6170                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6171                 else if (type != QC_OSTIDX)
6172                         printf(" %7s%c %6s %7s %7s",
6173                                numbuf[0], iover ? '*' : ' ', numbuf[1],
6174                                numbuf[2], iover > 1 ? timebuf : "-");
6175                 else
6176                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
6177                 printf("\n");
6178
6179         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
6180                    qctl->qc_cmd == Q_GETOINFO) {
6181                 char bgtimebuf[40];
6182                 char igtimebuf[40];
6183
6184                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
6185                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
6186                 printf("Block grace time: %s; Inode grace time: %s\n",
6187                        bgtimebuf, igtimebuf);
6188         }
6189 }
6190
6191 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
6192                            bool h, __u64 *total)
6193 {
6194         int rc = 0, rc1 = 0, count = 0;
6195         __u32 valid = qctl->qc_valid;
6196
6197         rc = llapi_get_obd_count(mnt, &count, is_mdt);
6198         if (rc) {
6199                 fprintf(stderr, "can not get %s count: %s\n",
6200                         is_mdt ? "mdt": "ost", strerror(-rc));
6201                 return rc;
6202         }
6203
6204         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
6205                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
6206                 rc = llapi_quotactl(mnt, qctl);
6207                 if (rc) {
6208                         /* It is remote client case. */
6209                         if (rc == -EOPNOTSUPP) {
6210                                 rc = 0;
6211                                 goto out;
6212                         }
6213
6214                         if (!rc1)
6215                                 rc1 = rc;
6216                         fprintf(stderr, "quotactl %s%d failed.\n",
6217                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
6218                         continue;
6219                 }
6220
6221                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
6222                             qctl->qc_valid, 0, h, false);
6223                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
6224                                    qctl->qc_dqblk.dqb_bhardlimit;
6225         }
6226 out:
6227         qctl->qc_valid = valid;
6228         return rc ? : rc1;
6229 }
6230
6231 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
6232                            int verbose, int quiet, bool human_readable,
6233                            bool show_default)
6234 {
6235         int rc1 = 0, rc2 = 0, rc3 = 0;
6236         char *obd_type = (char *)qctl->obd_type;
6237         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
6238         __u64 total_ialloc = 0, total_balloc = 0;
6239         bool use_default_for_blk = false;
6240         bool use_default_for_file = false;
6241         int inacc;
6242
6243         rc1 = llapi_quotactl(mnt, qctl);
6244         if (rc1 < 0) {
6245                 switch (rc1) {
6246                 case -ESRCH:
6247                         fprintf(stderr, "%s quotas are not enabled.\n",
6248                                 qtype_name(qctl->qc_type));
6249                         goto out;
6250                 case -EPERM:
6251                         fprintf(stderr, "Permission denied.\n");
6252                 case -ENODEV:
6253                 case -ENOENT:
6254                         /* We already got error message. */
6255                         goto out;
6256                 default:
6257                         fprintf(stderr, "Unexpected quotactl error: %s\n",
6258                                 strerror(-rc1));
6259                 }
6260         }
6261
6262         if (!show_default && qctl->qc_id == 0) {
6263                 qctl->qc_dqblk.dqb_bhardlimit = 0;
6264                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
6265                 qctl->qc_dqblk.dqb_ihardlimit = 0;
6266                 qctl->qc_dqblk.dqb_isoftlimit = 0;
6267                 qctl->qc_dqblk.dqb_btime = 0;
6268                 qctl->qc_dqblk.dqb_itime = 0;
6269                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
6270         }
6271
6272         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
6273             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
6274                 use_default_for_blk = true;
6275                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
6276         }
6277
6278         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
6279             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
6280                 use_default_for_file = true;
6281                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
6282         }
6283
6284         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
6285              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
6286                 print_quota_title(name, qctl, human_readable, show_default);
6287
6288         if (rc1 && *obd_type)
6289                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
6290
6291         if (qctl->qc_valid != QC_GENERAL)
6292                 mnt = "";
6293
6294         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA) &&
6295                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
6296                  (QIF_LIMITS|QIF_USAGE));
6297
6298         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
6299
6300         if (!show_default && verbose &&
6301             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO) {
6302                 char strbuf[STRBUF_LEN];
6303
6304                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
6305                                       &total_ialloc);
6306                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
6307                                       &total_balloc);
6308                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
6309                            human_readable);
6310                 printf("Total allocated inode limit: %ju, total "
6311                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
6312                        strbuf);
6313         }
6314
6315         if (use_default_for_blk)
6316                 printf("%cid %u is using default block quota setting\n",
6317                        *qtype_name(qctl->qc_type), qctl->qc_id);
6318
6319         if (use_default_for_file)
6320                 printf("%cid %u is using default file quota setting\n",
6321                        *qtype_name(qctl->qc_type), qctl->qc_id);
6322
6323         if (rc1 || rc2 || rc3 || inacc)
6324                 printf("Some errors happened when getting quota info. "
6325                        "Some devices may be not working or deactivated. "
6326                        "The data in \"[]\" is inaccurate.\n");
6327 out:
6328         return rc1;
6329
6330 }
6331
6332 static int lfs_project(int argc, char **argv)
6333 {
6334         int ret = 0, err = 0, c, i;
6335         struct project_handle_control phc = { 0 };
6336         enum lfs_project_ops_t op;
6337
6338         phc.newline = true;
6339         phc.assign_projid = false;
6340         /* default action */
6341         op = LFS_PROJECT_LIST;
6342
6343         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
6344                 switch (c) {
6345                 case 'c':
6346                         if (op != LFS_PROJECT_LIST) {
6347                                 fprintf(stderr,
6348                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6349                                         progname);
6350                                 return CMD_HELP;
6351                         }
6352
6353                         op = LFS_PROJECT_CHECK;
6354                         break;
6355                 case 'C':
6356                         if (op != LFS_PROJECT_LIST) {
6357                                 fprintf(stderr,
6358                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6359                                         progname);
6360                                 return CMD_HELP;
6361                         }
6362
6363                         op = LFS_PROJECT_CLEAR;
6364                         break;
6365                 case 's':
6366                         if (op != LFS_PROJECT_LIST) {
6367                                 fprintf(stderr,
6368                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6369                                         progname);
6370                                 return CMD_HELP;
6371                         }
6372
6373                         phc.set_inherit = true;
6374                         op = LFS_PROJECT_SET;
6375                         break;
6376                 case 'd':
6377                         phc.dironly = true;
6378                         break;
6379                 case 'k':
6380                         phc.keep_projid = true;
6381                         break;
6382                 case 'r':
6383                         phc.recursive = true;
6384                         break;
6385                 case 'p':
6386                         phc.projid = strtoul(optarg, NULL, 0);
6387                         phc.assign_projid = true;
6388
6389                         break;
6390                 case '0':
6391                         phc.newline = false;
6392                         break;
6393                 default:
6394                         fprintf(stderr, "%s: invalid option '%c'\n",
6395                                 progname, optopt);
6396                         return CMD_HELP;
6397                 }
6398         }
6399
6400         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
6401                 op = LFS_PROJECT_SET;
6402                 phc.set_projid = true;
6403         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
6404                 phc.set_projid = true;
6405         }
6406
6407         switch (op) {
6408         case LFS_PROJECT_CHECK:
6409                 if (phc.keep_projid) {
6410                         fprintf(stderr,
6411                                 "%s: '-k' is useless together with '-c'\n",
6412                                 progname);
6413                         return CMD_HELP;
6414                 }
6415                 break;
6416         case LFS_PROJECT_CLEAR:
6417                 if (!phc.newline) {
6418                         fprintf(stderr,
6419                                 "%s: '-0' is useless together with '-C'\n",
6420                                 progname);
6421                         return CMD_HELP;
6422                 }
6423                 if (phc.assign_projid) {
6424                         fprintf(stderr,
6425                                 "%s: '-p' is useless together with '-C'\n",
6426                                 progname);
6427                         return CMD_HELP;
6428                 }
6429                 break;
6430         case LFS_PROJECT_SET:
6431                 if (!phc.newline) {
6432                         fprintf(stderr,
6433                                 "%s: '-0' is useless together with '-s'\n",
6434                                 progname);
6435                         return CMD_HELP;
6436                 }
6437                 if (phc.keep_projid) {
6438                         fprintf(stderr,
6439                                 "%s: '-k' is useless together with '-s'\n",
6440                                 progname);
6441                         return CMD_HELP;
6442                 }
6443                 break;
6444         default:
6445                 if (!phc.newline) {
6446                         fprintf(stderr,
6447                                 "%s: '-0' is useless for list operations\n",
6448                                 progname);
6449                         return CMD_HELP;
6450                 }
6451                 break;
6452         }
6453
6454         argv += optind;
6455         argc -= optind;
6456         if (argc == 0) {
6457                 fprintf(stderr, "%s: missing file or directory target(s)\n",
6458                         progname);
6459                 return CMD_HELP;
6460         }
6461
6462         for (i = 0; i < argc; i++) {
6463                 switch (op) {
6464                 case LFS_PROJECT_CHECK:
6465                         err = lfs_project_check(argv[i], &phc);
6466                         break;
6467                 case LFS_PROJECT_LIST:
6468                         err = lfs_project_list(argv[i], &phc);
6469                         break;
6470                 case LFS_PROJECT_CLEAR:
6471                         err = lfs_project_clear(argv[i], &phc);
6472                         break;
6473                 case LFS_PROJECT_SET:
6474                         err = lfs_project_set(argv[i], &phc);
6475                         break;
6476                 default:
6477                         break;
6478                 }
6479                 if (err && !ret)
6480                         ret = err;
6481         }
6482
6483         return ret;
6484 }
6485
6486 static int lfs_quota(int argc, char **argv)
6487 {
6488         int c;
6489         char *mnt, *name = NULL;
6490         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
6491                                     .qc_type = ALLQUOTA };
6492         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
6493         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
6494         char *endptr;
6495         __u32 valid = QC_GENERAL, idx = 0;
6496         bool human_readable = false;
6497         bool show_default = false;
6498         int qtype;
6499
6500         while ((c = getopt(argc, argv, "gGi:I:o:pPqtuUvh")) != -1) {
6501                 switch (c) {
6502                 case 'U':
6503                         show_default = true;
6504                 case 'u':
6505                         qtype = USRQUOTA;
6506                         goto quota_type;
6507                 case 'G':
6508                         show_default = true;
6509                 case 'g':
6510                         qtype = GRPQUOTA;
6511                         goto quota_type;
6512                 case 'P':
6513                         show_default = true;
6514                 case 'p':
6515                         qtype = PRJQUOTA;
6516 quota_type:
6517                         if (qctl.qc_type != ALLQUOTA) {
6518                                 fprintf(stderr,
6519                                         "%s quota: only one of -u, -g, or -p may be specified\n",
6520                                         progname);
6521                                 return CMD_HELP;
6522                         }
6523                         qctl.qc_type = qtype;
6524                         break;
6525                 case 't':
6526                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
6527                         break;
6528                 case 'o':
6529                         valid = qctl.qc_valid = QC_UUID;
6530                         snprintf(obd_uuid, sizeof(qctl.obd_uuid), "%s", optarg);
6531                         break;
6532                 case 'i':
6533                         valid = qctl.qc_valid = QC_MDTIDX;
6534                         idx = qctl.qc_idx = atoi(optarg);
6535                         if (idx == 0 && *optarg != '0') {
6536                                 fprintf(stderr,
6537                                         "%s quota: invalid MDT index '%s'\n",
6538                                         progname, optarg);
6539                                 return CMD_HELP;
6540                         }
6541                         break;
6542                 case 'I':
6543                         valid = qctl.qc_valid = QC_OSTIDX;
6544                         idx = qctl.qc_idx = atoi(optarg);
6545                         if (idx == 0 && *optarg != '0') {
6546                                 fprintf(stderr,
6547                                         "%s quota: invalid OST index '%s'\n",
6548                                         progname, optarg);
6549                                 return CMD_HELP;
6550                         }
6551                         break;
6552                 case 'v':
6553                         verbose = 1;
6554                         break;
6555                 case 'q':
6556                         quiet = 1;
6557                         break;
6558                 case 'h':
6559                         human_readable = true;
6560                         break;
6561                 default:
6562                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
6563                                 progname, argv[optind - 1]);
6564                         return CMD_HELP;
6565                 }
6566         }
6567
6568         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
6569         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
6570             optind == argc - 1 && !show_default) {
6571
6572                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
6573                 qctl.qc_valid = valid;
6574                 qctl.qc_idx = idx;
6575
6576                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
6577                         qctl.qc_type = qtype;
6578                         if (qtype == USRQUOTA) {
6579                                 qctl.qc_id = geteuid();
6580                                 rc = uid2name(&name, qctl.qc_id);
6581                         } else {
6582                                 qctl.qc_id = getegid();
6583                                 rc = gid2name(&name, qctl.qc_id);
6584                         }
6585                         if (rc)
6586                                 name = "<unknown>";
6587                         mnt = argv[optind];
6588                         rc1 = get_print_quota(mnt, name, &qctl, verbose, quiet,
6589                                               human_readable, show_default);
6590                         if (rc1 && !rc)
6591                                 rc = rc1;
6592                 }
6593                 return rc;
6594         /* lfs quota -u username /path/to/lustre/mount */
6595         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
6596                 /* options should be followed by u/g-name and mntpoint */
6597                 if ((!show_default && optind + 2 != argc) ||
6598                     (show_default && optind + 1 != argc) ||
6599                     qctl.qc_type == ALLQUOTA) {
6600                         fprintf(stderr,
6601                                 "%s quota: name and mount point must be specified\n",
6602                                 progname);
6603                         return CMD_HELP;
6604                 }
6605
6606                 if (!show_default) {
6607                         name = argv[optind++];
6608                         switch (qctl.qc_type) {
6609                         case USRQUOTA:
6610                                 rc = name2uid(&qctl.qc_id, name);
6611                                 break;
6612                         case GRPQUOTA:
6613                                 rc = name2gid(&qctl.qc_id, name);
6614                                 break;
6615                         case PRJQUOTA:
6616                                 rc = name2projid(&qctl.qc_id, name);
6617                                 break;
6618                         default:
6619                                 rc = -ENOTSUP;
6620                                 break;
6621                         }
6622                 } else {
6623                         qctl.qc_valid = QC_GENERAL;
6624                         qctl.qc_cmd = LUSTRE_Q_GETDEFAULT;
6625                         qctl.qc_id = 0;
6626                 }
6627
6628                 if (rc) {
6629                         qctl.qc_id = strtoul(name, &endptr, 10);
6630                         if (*endptr != '\0') {
6631                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
6632                                         progname, name);
6633                                 return CMD_HELP;
6634                         }
6635                 }
6636         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
6637                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
6638                         progname);
6639                 return CMD_HELP;
6640         }
6641
6642         mnt = argv[optind];
6643         rc = get_print_quota(mnt, name, &qctl, verbose, quiet,
6644                              human_readable, show_default);
6645         return rc;
6646 }
6647 #endif /* HAVE_SYS_QUOTA_H! */
6648
6649 static int flushctx_ioctl(char *mp)
6650 {
6651         int fd, rc;
6652
6653         fd = open(mp, O_RDONLY);
6654         if (fd == -1) {
6655                 fprintf(stderr, "flushctx: error open %s: %s\n",
6656                         mp, strerror(errno));
6657                 return -1;
6658         }
6659
6660         rc = ioctl(fd, LL_IOC_FLUSHCTX);
6661         if (rc == -1)
6662                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
6663                         mp, strerror(errno));
6664
6665         close(fd);
6666         return rc;
6667 }
6668
6669 static int lfs_flushctx(int argc, char **argv)
6670 {
6671         int     kdestroy = 0, c;
6672         char    mntdir[PATH_MAX] = {'\0'};
6673         int     index = 0;
6674         int     rc = 0;
6675
6676         while ((c = getopt(argc, argv, "k")) != -1) {
6677                 switch (c) {
6678                 case 'k':
6679                         kdestroy = 1;
6680                         break;
6681                 default:
6682                         fprintf(stderr, "error: %s: option '-%c' "
6683                                         "unrecognized\n", argv[0], c);
6684                         return CMD_HELP;
6685                 }
6686         }
6687
6688         if (kdestroy) {
6689             if ((rc = system("kdestroy > /dev/null")) != 0) {
6690                 rc = WEXITSTATUS(rc);
6691                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
6692             }
6693         }
6694
6695         if (optind >= argc) {
6696                 /* flush for all mounted lustre fs. */
6697                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
6698                         /* Check if we have a mount point */
6699                         if (mntdir[0] == '\0')
6700                                 continue;
6701
6702                         if (flushctx_ioctl(mntdir))
6703                                 rc = -1;
6704
6705                         mntdir[0] = '\0'; /* avoid matching in next loop */
6706                 }
6707         } else {
6708                 /* flush fs as specified */
6709                 while (optind < argc) {
6710                         if (flushctx_ioctl(argv[optind++]))
6711                                 rc = -1;
6712                 }
6713         }
6714         return rc;
6715 }
6716
6717 static int lfs_changelog(int argc, char **argv)
6718 {
6719         void *changelog_priv;
6720         struct changelog_rec *rec;
6721         long long startrec = 0, endrec = 0;
6722         char *mdd;
6723         struct option long_opts[] = {
6724                 { .val = 'f', .name = "follow", .has_arg = no_argument },
6725                 { .name = NULL } };
6726         char short_opts[] = "f";
6727         int rc, follow = 0;
6728
6729         while ((rc = getopt_long(argc, argv, short_opts,
6730                 long_opts, NULL)) != -1) {
6731                 switch (rc) {
6732                 case 'f':
6733                         follow++;
6734                         break;
6735                 default:
6736                         fprintf(stderr,
6737                                 "%s changelog: unrecognized option '%s'\n",
6738                                 progname, argv[optind - 1]);
6739                         return CMD_HELP;
6740                 }
6741         }
6742         if (optind >= argc) {
6743                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
6744                         progname);
6745                 return CMD_HELP;
6746         }
6747
6748         mdd = argv[optind++];
6749         if (argc > optind)
6750                 startrec = strtoll(argv[optind++], NULL, 10);
6751         if (argc > optind)
6752                 endrec = strtoll(argv[optind++], NULL, 10);
6753
6754         rc = llapi_changelog_start(&changelog_priv,
6755                                    CHANGELOG_FLAG_BLOCK |
6756                                    CHANGELOG_FLAG_JOBID |
6757                                    CHANGELOG_FLAG_EXTRA_FLAGS |
6758                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
6759                                    mdd, startrec);
6760         if (rc < 0) {
6761                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
6762                         progname, strerror(errno = -rc));
6763                 return rc;
6764         }
6765
6766         rc = llapi_changelog_set_xflags(changelog_priv,
6767                                         CHANGELOG_EXTRA_FLAG_UIDGID |
6768                                         CHANGELOG_EXTRA_FLAG_NID |
6769                                         CHANGELOG_EXTRA_FLAG_OMODE |
6770                                         CHANGELOG_EXTRA_FLAG_XATTR);
6771         if (rc < 0) {
6772                 fprintf(stderr,
6773                         "%s changelog: cannot set xflags for changelog: %s\n",
6774                         progname, strerror(errno = -rc));
6775                 return rc;
6776         }
6777
6778         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
6779                 time_t secs;
6780                 struct tm ts;
6781
6782                 if (endrec && rec->cr_index > endrec) {
6783                         llapi_changelog_free(&rec);
6784                         break;
6785                 }
6786                 if (rec->cr_index < startrec) {
6787                         llapi_changelog_free(&rec);
6788                         continue;
6789                 }
6790
6791                 secs = rec->cr_time >> 30;
6792                 gmtime_r(&secs, &ts);
6793                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
6794                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
6795                        changelog_type2str(rec->cr_type),
6796                        ts.tm_hour, ts.tm_min, ts.tm_sec,
6797                        (int)(rec->cr_time & ((1 << 30) - 1)),
6798                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
6799                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
6800
6801                 if (rec->cr_flags & CLF_JOBID) {
6802                         struct changelog_ext_jobid *jid =
6803                                 changelog_rec_jobid(rec);
6804
6805                         if (jid->cr_jobid[0] != '\0')
6806                                 printf(" j=%s", jid->cr_jobid);
6807                 }
6808
6809                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
6810                         struct changelog_ext_extra_flags *ef =
6811                                 changelog_rec_extra_flags(rec);
6812
6813                         printf(" ef=0x%llx", ef->cr_extra_flags);
6814
6815                         if (ef->cr_extra_flags & CLFE_UIDGID) {
6816                                 struct changelog_ext_uidgid *uidgid =
6817                                         changelog_rec_uidgid(rec);
6818
6819                                 printf(" u=%llu:%llu",
6820                                        uidgid->cr_uid, uidgid->cr_gid);
6821                         }
6822                         if (ef->cr_extra_flags & CLFE_NID) {
6823                                 struct changelog_ext_nid *nid =
6824                                         changelog_rec_nid(rec);
6825
6826                                 printf(" nid=%s",
6827                                        libcfs_nid2str(nid->cr_nid));
6828                         }
6829
6830                         if (ef->cr_extra_flags & CLFE_OPEN) {
6831                                 struct changelog_ext_openmode *omd =
6832                                         changelog_rec_openmode(rec);
6833                                 char mode[] = "---";
6834
6835                                 /* exec mode must be exclusive */
6836                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
6837                                         mode[2] = 'x';
6838                                 } else {
6839                                         if (omd->cr_openflags & MDS_FMODE_READ)
6840                                                 mode[0] = 'r';
6841                                         if (omd->cr_openflags &
6842                                             (MDS_FMODE_WRITE |
6843                                              MDS_OPEN_TRUNC |
6844                                              MDS_OPEN_APPEND))
6845                                                 mode[1] = 'w';
6846                                 }
6847
6848                                 if (strcmp(mode, "---") != 0)
6849                                         printf(" m=%s", mode);
6850
6851                         }
6852
6853                         if (ef->cr_extra_flags & CLFE_XATTR) {
6854                                 struct changelog_ext_xattr *xattr =
6855                                         changelog_rec_xattr(rec);
6856
6857                                 if (xattr->cr_xattr[0] != '\0')
6858                                         printf(" x=%s", xattr->cr_xattr);
6859                         }
6860                 }
6861
6862                 if (rec->cr_namelen)
6863                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
6864                                rec->cr_namelen, changelog_rec_name(rec));
6865
6866                 if (rec->cr_flags & CLF_RENAME) {
6867                         struct changelog_ext_rename *rnm =
6868                                 changelog_rec_rename(rec);
6869
6870                         if (!fid_is_zero(&rnm->cr_sfid))
6871                                 printf(" s="DFID" sp="DFID" %.*s",
6872                                        PFID(&rnm->cr_sfid),
6873                                        PFID(&rnm->cr_spfid),
6874                                        (int)changelog_rec_snamelen(rec),
6875                                        changelog_rec_sname(rec));
6876                 }
6877                 printf("\n");
6878
6879                 llapi_changelog_free(&rec);
6880         }
6881
6882         llapi_changelog_fini(&changelog_priv);
6883
6884         if (rc < 0)
6885                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
6886                         progname, strerror(errno = -rc));
6887
6888         return (rc == 1 ? 0 : rc);
6889 }
6890
6891 static int lfs_changelog_clear(int argc, char **argv)
6892 {
6893         long long endrec;
6894         int rc;
6895
6896         if (argc != 4)
6897                 return CMD_HELP;
6898
6899         endrec = strtoll(argv[3], NULL, 10);
6900
6901         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
6902
6903         if (rc == -EINVAL)
6904                 fprintf(stderr, "%s: record out of range: %llu\n",
6905                         argv[0], endrec);
6906         else if (rc == -ENOENT)
6907                 fprintf(stderr, "%s: no changelog user: %s\n",
6908                         argv[0], argv[2]);
6909         else if (rc)
6910                 fprintf(stderr, "%s error: %s\n", argv[0],
6911                         strerror(-rc));
6912
6913         if (rc)
6914                 errno = -rc;
6915
6916         return rc;
6917 }
6918
6919 static int lfs_fid2path(int argc, char **argv)
6920 {
6921         struct option long_opts[] = {
6922                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
6923                 { .val = 'l',   .name = "link", .has_arg = required_argument },
6924                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
6925                 { .name = NULL } };
6926         char  short_opts[] = "cl:r:";
6927         char *device, *fid, *path;
6928         long long recno = -1;
6929         int linkno = -1;
6930         int lnktmp;
6931         int printcur = 0;
6932         int rc = 0;
6933         char *endptr = NULL;
6934
6935         while ((rc = getopt_long(argc, argv, short_opts,
6936                 long_opts, NULL)) != -1) {
6937                 switch (rc) {
6938                 case 'c':
6939                         printcur++;
6940                         break;
6941                 case 'l':
6942                         linkno = strtol(optarg, &endptr, 10);
6943                         if (*endptr != '\0') {
6944                                 fprintf(stderr,
6945                                         "%s fid2path: invalid linkno '%s'\n",
6946                                         progname, optarg);
6947                                 return CMD_HELP;
6948                         }
6949                         break;
6950                 case 'r':
6951                         recno = strtoll(optarg, &endptr, 10);
6952                         if (*endptr != '\0') {
6953                                 fprintf(stderr,
6954                                         "%s fid2path: invalid recno '%s'\n",
6955                                         progname, optarg);
6956                                 return CMD_HELP;
6957                         }
6958                         break;
6959                 default:
6960                         fprintf(stderr,
6961                                 "%s fid2path: unrecognized option '%s'\n",
6962                                 progname, argv[optind - 1]);
6963                         return CMD_HELP;
6964                 }
6965         }
6966
6967         if (argc < 3) {
6968                 fprintf(stderr,
6969                         "%s fid2path: <fsname|rootpath> and <fid>... must be specified\n",
6970                         progname);
6971                 return CMD_HELP;
6972         }
6973
6974         device = argv[optind++];
6975         path = calloc(1, PATH_MAX);
6976         if (path == NULL) {
6977                 rc = -errno;
6978                 fprintf(stderr,
6979                         "%s fid2path: cannot allocate memory for path: %s\n",
6980                         progname, strerror(-rc));
6981                 return rc;
6982         }
6983
6984         rc = 0;
6985         while (optind < argc) {
6986                 fid = argv[optind++];
6987
6988                 lnktmp = (linkno >= 0) ? linkno : 0;
6989                 while (1) {
6990                         int oldtmp = lnktmp;
6991                         long long rectmp = recno;
6992                         int rc2;
6993                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
6994                                              &rectmp, &lnktmp);
6995                         if (rc2 < 0) {
6996                                 fprintf(stderr,
6997                                         "%s fid2path: cannot find '%s': %s\n",
6998                                         progname, fid, strerror(errno = -rc2));
6999                                 if (rc == 0)
7000                                         rc = rc2;
7001                                 break;
7002                         }
7003
7004                         if (printcur)
7005                                 fprintf(stdout, "%lld ", rectmp);
7006                         if (device[0] == '/') {
7007                                 fprintf(stdout, "%s", device);
7008                                 if (device[strlen(device) - 1] != '/')
7009                                         fprintf(stdout, "/");
7010                         } else if (path[0] == '\0') {
7011                                 fprintf(stdout, "/");
7012                         }
7013                         fprintf(stdout, "%s\n", path);
7014
7015                         if (linkno >= 0)
7016                                 /* specified linkno */
7017                                 break;
7018                         if (oldtmp == lnktmp)
7019                                 /* no more links */
7020                                 break;
7021                 }
7022         }
7023
7024         free(path);
7025         return rc;
7026 }
7027
7028 static int lfs_path2fid(int argc, char **argv)
7029 {
7030         struct option long_opts[] = {
7031                 { .val = 'p', .name = "parents", .has_arg = no_argument },
7032                 { .name = NULL } };
7033         char            **path;
7034         const char        short_opts[] = "p";
7035         const char       *sep = "";
7036         struct lu_fid     fid;
7037         int               rc = 0;
7038         bool              show_parents = false;
7039
7040         while ((rc = getopt_long(argc, argv, short_opts,
7041                                  long_opts, NULL)) != -1) {
7042                 switch (rc) {
7043                 case 'p':
7044                         show_parents = true;
7045                         break;
7046                 default:
7047                         fprintf(stderr,
7048                                 "%s path2fid: unrecognized option '%s'\n",
7049                                 progname, argv[optind - 1]);
7050                         return CMD_HELP;
7051                 }
7052         }
7053
7054         if (optind > argc - 1) {
7055                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
7056                         progname);
7057                 return CMD_HELP;
7058         }
7059         else if (optind < argc - 1)
7060                 sep = ": ";
7061
7062         rc = 0;
7063         for (path = argv + optind; *path != NULL; path++) {
7064                 int err = 0;
7065                 if (!show_parents) {
7066                         err = llapi_path2fid(*path, &fid);
7067                         if (!err)
7068                                 printf("%s%s"DFID"\n",
7069                                        *sep != '\0' ? *path : "", sep,
7070                                        PFID(&fid));
7071                 } else {
7072                         char            name[NAME_MAX + 1];
7073                         unsigned int    linkno = 0;
7074
7075                         while ((err = llapi_path2parent(*path, linkno, &fid,
7076                                                 name, sizeof(name))) == 0) {
7077                                 if (*sep != '\0' && linkno == 0)
7078                                         printf("%s%s", *path, sep);
7079
7080                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
7081                                        PFID(&fid), name);
7082                                 linkno++;
7083                         }
7084
7085                         /* err == -ENODATA is end-of-loop */
7086                         if (linkno > 0 && err == -ENODATA) {
7087                                 printf("\n");
7088                                 err = 0;
7089                         }
7090                 }
7091
7092                 if (err) {
7093                         fprintf(stderr,
7094                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
7095                                 progname, show_parents ? "parent " : "", *path,
7096                                 strerror(-err));
7097                         if (rc == 0) {
7098                                 rc = err;
7099                                 errno = -err;
7100                         }
7101                 }
7102         }
7103
7104         return rc;
7105 }
7106
7107 static int lfs_data_version(int argc, char **argv)
7108 {
7109         char *path;
7110         __u64 data_version;
7111         int fd;
7112         int rc;
7113         int c;
7114         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
7115
7116         if (argc < 2) {
7117                 fprintf(stderr, "%s data_version: FILE must be specified\n",
7118                         progname);
7119                 return CMD_HELP;
7120         }
7121
7122         while ((c = getopt(argc, argv, "nrw")) != -1) {
7123                 switch (c) {
7124                 case 'n':
7125                         data_version_flags = 0;
7126                         break;
7127                 case 'r':
7128                         data_version_flags |= LL_DV_RD_FLUSH;
7129                         break;
7130                 case 'w':
7131                         data_version_flags |= LL_DV_WR_FLUSH;
7132                         break;
7133                 default:
7134                         fprintf(stderr,
7135                                 "%s data_version: unrecognized option '%s'\n",
7136                                 progname, argv[optind - 1]);
7137                         return CMD_HELP;
7138                 }
7139         }
7140         if (optind == argc) {
7141                 fprintf(stderr, "%s data_version: FILE must be specified\n",
7142                         progname);
7143                 return CMD_HELP;
7144         }
7145
7146         path = argv[optind];
7147         fd = open(path, O_RDONLY);
7148         if (fd < 0) {
7149                 rc = -errno;
7150                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
7151                         progname, path, strerror(-rc));
7152                 return rc;
7153         }
7154
7155         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
7156         if (rc < 0)
7157                 fprintf(stderr,
7158                         "%s data_version: cannot get version for '%s': %s\n",
7159                         progname, path, strerror(-rc));
7160         else
7161                 printf("%ju" "\n", (uintmax_t)data_version);
7162
7163         close(fd);
7164         return rc;
7165 }
7166
7167 static int lfs_hsm_state(int argc, char **argv)
7168 {
7169         int rc;
7170         int i = 1;
7171         char *path;
7172         struct hsm_user_state hus;
7173
7174         if (argc < 2)
7175                 return CMD_HELP;
7176
7177         do {
7178                 path = argv[i];
7179
7180                 rc = llapi_hsm_state_get(path, &hus);
7181                 if (rc) {
7182                         fprintf(stderr, "can't get hsm state for %s: %s\n",
7183                                 path, strerror(errno = -rc));
7184                         return rc;
7185                 }
7186
7187                 /* Display path name and status flags */
7188                 printf("%s: (0x%08x)", path, hus.hus_states);
7189
7190                 if (hus.hus_states & HS_RELEASED)
7191                         printf(" released");
7192                 if (hus.hus_states & HS_EXISTS)
7193                         printf(" exists");
7194                 if (hus.hus_states & HS_DIRTY)
7195                         printf(" dirty");
7196                 if (hus.hus_states & HS_ARCHIVED)
7197                         printf(" archived");
7198                 /* Display user-settable flags */
7199                 if (hus.hus_states & HS_NORELEASE)
7200                         printf(" never_release");
7201                 if (hus.hus_states & HS_NOARCHIVE)
7202                         printf(" never_archive");
7203                 if (hus.hus_states & HS_LOST)
7204                         printf(" lost_from_hsm");
7205
7206                 if (hus.hus_archive_id != 0)
7207                         printf(", archive_id:%d", hus.hus_archive_id);
7208                 printf("\n");
7209
7210         } while (++i < argc);
7211
7212         return 0;
7213 }
7214
7215 #define LFS_HSM_SET   0
7216 #define LFS_HSM_CLEAR 1
7217
7218 /**
7219  * Generic function to set or clear HSM flags.
7220  * Used by hsm_set and hsm_clear.
7221  *
7222  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
7223  */
7224 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
7225 {
7226         struct option long_opts[] = {
7227         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
7228         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
7229         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
7230         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
7231         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
7232         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
7233         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
7234         { .name = NULL } };
7235         char short_opts[] = "lraAdei:";
7236         __u64 mask = 0;
7237         int c, rc;
7238         char *path;
7239         __u32 archive_id = 0;
7240         char *end = NULL;
7241
7242         if (argc < 3)
7243                 return CMD_HELP;
7244
7245         while ((c = getopt_long(argc, argv, short_opts,
7246                                 long_opts, NULL)) != -1) {
7247                 switch (c) {
7248                 case 'l':
7249                         mask |= HS_LOST;
7250                         break;
7251                 case 'a':
7252                         mask |= HS_NOARCHIVE;
7253                         break;
7254                 case 'A':
7255                         mask |= HS_ARCHIVED;
7256                         break;
7257                 case 'r':
7258                         mask |= HS_NORELEASE;
7259                         break;
7260                 case 'd':
7261                         mask |= HS_DIRTY;
7262                         break;
7263                 case 'e':
7264                         mask |= HS_EXISTS;
7265                         break;
7266                 case 'i':
7267                         archive_id = strtol(optarg, &end, 10);
7268                         if (*end != '\0') {
7269                                 fprintf(stderr, "invalid archive_id: '%s'\n",
7270                                         end);
7271                                 return CMD_HELP;
7272                         }
7273                         break;
7274                 case '?':
7275                         return CMD_HELP;
7276                 default:
7277                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7278                                 argv[0], argv[optind - 1]);
7279                         return CMD_HELP;
7280                 }
7281         }
7282
7283         /* User should have specified a flag */
7284         if (mask == 0)
7285                 return CMD_HELP;
7286
7287         while (optind < argc) {
7288
7289                 path = argv[optind];
7290
7291                 /* If mode == 0, this means we apply the mask. */
7292                 if (mode == LFS_HSM_SET)
7293                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
7294                 else
7295                         rc = llapi_hsm_state_set(path, 0, mask, 0);
7296
7297                 if (rc != 0) {
7298                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
7299                                 path, strerror(errno = -rc));
7300                         return rc;
7301                 }
7302                 optind++;
7303         }
7304
7305         return 0;
7306 }
7307
7308 static int lfs_hsm_action(int argc, char **argv)
7309 {
7310         int                              rc;
7311         int                              i = 1;
7312         char                            *path;
7313         struct hsm_current_action        hca;
7314         struct hsm_extent                he;
7315         enum hsm_user_action             hua;
7316         enum hsm_progress_states         hps;
7317
7318         if (argc < 2)
7319                 return CMD_HELP;
7320
7321         do {
7322                 path = argv[i];
7323
7324                 rc = llapi_hsm_current_action(path, &hca);
7325                 if (rc) {
7326                         fprintf(stderr, "can't get hsm action for %s: %s\n",
7327                                 path, strerror(errno = -rc));
7328                         return rc;
7329                 }
7330                 he = hca.hca_location;
7331                 hua = hca.hca_action;
7332                 hps = hca.hca_state;
7333
7334                 printf("%s: %s", path, hsm_user_action2name(hua));
7335
7336                 /* Skip file without action */
7337                 if (hca.hca_action == HUA_NONE) {
7338                         printf("\n");
7339                         continue;
7340                 }
7341
7342                 printf(" %s ", hsm_progress_state2name(hps));
7343
7344                 if ((hps == HPS_RUNNING) &&
7345                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
7346                         printf("(%llu bytes moved)\n",
7347                                (unsigned long long)he.length);
7348                 else if ((he.offset + he.length) == LUSTRE_EOF)
7349                         printf("(from %llu to EOF)\n",
7350                                (unsigned long long)he.offset);
7351                 else
7352                         printf("(from %llu to %llu)\n",
7353                                (unsigned long long)he.offset,
7354                                (unsigned long long)(he.offset + he.length));
7355
7356         } while (++i < argc);
7357
7358         return 0;
7359 }
7360
7361 static int lfs_hsm_set(int argc, char **argv)
7362 {
7363         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
7364 }
7365
7366 static int lfs_hsm_clear(int argc, char **argv)
7367 {
7368         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
7369 }
7370
7371 /**
7372  * Check file state and return its fid, to be used by lfs_hsm_request().
7373  *
7374  * \param[in]     file      Path to file to check
7375  * \param[in,out] fid       Pointer to allocated lu_fid struct.
7376  * \param[in,out] last_dev  Pointer to last device id used.
7377  *
7378  * \return 0 on success.
7379  */
7380 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
7381                                 dev_t *last_dev)
7382 {
7383         struct stat     st;
7384         int             rc;
7385
7386         rc = lstat(file, &st);
7387         if (rc) {
7388                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
7389                 return -errno;
7390         }
7391         /* Checking for regular file as archiving as posix copytool
7392          * rejects archiving files other than regular files
7393          */
7394         if (!S_ISREG(st.st_mode)) {
7395                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
7396                 return CMD_HELP;
7397         }
7398         /* A request should be ... */
7399         if (*last_dev != st.st_dev && *last_dev != 0) {
7400                 fprintf(stderr, "All files should be "
7401                         "on the same filesystem: %s\n", file);
7402                 return -EINVAL;
7403         }
7404         *last_dev = st.st_dev;
7405
7406         rc = llapi_path2fid(file, fid);
7407         if (rc) {
7408                 fprintf(stderr, "Cannot read FID of %s: %s\n",
7409                         file, strerror(-rc));
7410                 return rc;
7411         }
7412         return 0;
7413 }
7414
7415 /* Fill an HSM HUR item with a given file name.
7416  *
7417  * If mntpath is set, then the filename is actually a FID, and no
7418  * lookup on the filesystem will be performed.
7419  *
7420  * \param[in]  hur         the user request to fill
7421  * \param[in]  idx         index of the item inside the HUR to fill
7422  * \param[in]  mntpath     mountpoint of Lustre
7423  * \param[in]  fname       filename (if mtnpath is NULL)
7424  *                         or FID (if mntpath is set)
7425  * \param[in]  last_dev    pointer to last device id used
7426  *
7427  * \retval 0 on success
7428  * \retval CMD_HELP or a negative errno on error
7429  */
7430 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
7431                          const char *mntpath, const char *fname,
7432                          dev_t *last_dev)
7433 {
7434         struct hsm_user_item *hui = &hur->hur_user_item[idx];
7435         int rc;
7436
7437         hui->hui_extent.length = -1;
7438
7439         if (mntpath != NULL) {
7440                 if (*fname == '[')
7441                         fname++;
7442                 rc = sscanf(fname, SFID, RFID(&hui->hui_fid));
7443                 if (rc == 3) {
7444                         rc = 0;
7445                 } else {
7446                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
7447                                 fname);
7448                         rc = -EINVAL;
7449                 }
7450         } else {
7451                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
7452         }
7453
7454         if (rc == 0)
7455                 hur->hur_request.hr_itemcount++;
7456
7457         return rc;
7458 }
7459
7460 static int lfs_hsm_request(int argc, char **argv, int action)
7461 {
7462         struct option long_opts[] = {
7463         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
7464         { .val = 'D',   .name = "data",         .has_arg = required_argument },
7465         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
7466         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
7467         { .name = NULL } };
7468         dev_t                    last_dev = 0;
7469         char                     short_opts[] = "l:D:a:m:";
7470         struct hsm_user_request *hur, *oldhur;
7471         int                      c, i;
7472         size_t                   len;
7473         int                      nbfile;
7474         char                    *line = NULL;
7475         char                    *filelist = NULL;
7476         char                     fullpath[PATH_MAX];
7477         char                    *opaque = NULL;
7478         int                      opaque_len = 0;
7479         int                      archive_id = 0;
7480         FILE                    *fp;
7481         int                      nbfile_alloc = 0;
7482         char                    *some_file = NULL;
7483         char                    *mntpath = NULL;
7484         int                      rc;
7485
7486         if (argc < 2)
7487                 return CMD_HELP;
7488
7489         while ((c = getopt_long(argc, argv, short_opts,
7490                                 long_opts, NULL)) != -1) {
7491                 switch (c) {
7492                 case 'l':
7493                         filelist = optarg;
7494                         break;
7495                 case 'D':
7496                         opaque = optarg;
7497                         break;
7498                 case 'a':
7499                         if (action != HUA_ARCHIVE &&
7500                             action != HUA_REMOVE) {
7501                                 fprintf(stderr,
7502                                         "error: -a is supported only "
7503                                         "when archiving or removing\n");
7504                                 return CMD_HELP;
7505                         }
7506                         archive_id = atoi(optarg);
7507                         break;
7508                 case 'm':
7509                         if (some_file == NULL) {
7510                                 mntpath = optarg;
7511                                 some_file = strdup(optarg);
7512                         }
7513                         break;
7514                 case '?':
7515                         return CMD_HELP;
7516                 default:
7517                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7518                                 argv[0], argv[optind - 1]);
7519                         return CMD_HELP;
7520                 }
7521         }
7522
7523         /* All remaining args are files, so we have at least nbfile */
7524         nbfile = argc - optind;
7525
7526         if ((nbfile == 0) && (filelist == NULL))
7527                 return CMD_HELP;
7528
7529         if (opaque != NULL)
7530                 opaque_len = strlen(opaque);
7531
7532         /* Alloc the request structure with enough place to store all files
7533          * from command line. */
7534         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
7535         if (hur == NULL) {
7536                 fprintf(stderr, "Cannot create the request: %s\n",
7537                         strerror(errno));
7538                 return errno;
7539         }
7540         nbfile_alloc = nbfile;
7541
7542         hur->hur_request.hr_action = action;
7543         hur->hur_request.hr_archive_id = archive_id;
7544         hur->hur_request.hr_flags = 0;
7545
7546         /* All remaining args are files, add them */
7547         if (nbfile != 0 && some_file == NULL)
7548                 some_file = strdup(argv[optind]);
7549
7550         for (i = 0; i < nbfile; i++) {
7551                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
7552                                    &last_dev);
7553                 if (rc)
7554                         goto out_free;
7555         }
7556
7557         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
7558
7559         /* If a filelist was specified, read the filelist from it. */
7560         if (filelist != NULL) {
7561                 fp = fopen(filelist, "r");
7562                 if (fp == NULL) {
7563                         fprintf(stderr, "Cannot read the file list %s: %s\n",
7564                                 filelist, strerror(errno));
7565                         rc = -errno;
7566                         goto out_free;
7567                 }
7568
7569                 while ((rc = getline(&line, &len, fp)) != -1) {
7570                         /* If allocated buffer was too small, get something
7571                          * larger */
7572                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
7573                                 ssize_t size;
7574
7575                                 nbfile_alloc = nbfile_alloc * 2 + 1;
7576                                 oldhur = hur;
7577                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
7578                                                                    opaque_len);
7579                                 if (hur == NULL) {
7580                                         fprintf(stderr, "hsm: cannot allocate "
7581                                                 "the request: %s\n",
7582                                                 strerror(errno));
7583                                         hur = oldhur;
7584                                         rc = -errno;
7585                                         fclose(fp);
7586                                         goto out_free;
7587                                 }
7588                                 size = hur_len(oldhur);
7589                                 if (size < 0) {
7590                                         fprintf(stderr, "hsm: cannot allocate "
7591                                                 "%u files + %u bytes data\n",
7592                                             oldhur->hur_request.hr_itemcount,
7593                                             oldhur->hur_request.hr_data_len);
7594                                         free(hur);
7595                                         hur = oldhur;
7596                                         rc = -E2BIG;
7597                                         fclose(fp);
7598                                         goto out_free;
7599                                 }
7600                                 memcpy(hur, oldhur, size);
7601                                 free(oldhur);
7602                         }
7603
7604                         /* Chop CR */
7605                         if (line[strlen(line) - 1] == '\n')
7606                                 line[strlen(line) - 1] = '\0';
7607
7608                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
7609                                            mntpath, line, &last_dev);
7610                         if (rc) {
7611                                 fclose(fp);
7612                                 goto out_free;
7613                         }
7614
7615                         if (some_file == NULL) {
7616                                 some_file = line;
7617                                 line = NULL;
7618                         }
7619                 }
7620
7621                 rc = fclose(fp);
7622                 free(line);
7623         }
7624
7625         /* If a --data was used, add it to the request */
7626         hur->hur_request.hr_data_len = opaque_len;
7627         if (opaque != NULL)
7628                 memcpy(hur_data(hur), opaque, opaque_len);
7629
7630         /* Send the HSM request */
7631         if (realpath(some_file, fullpath) == NULL) {
7632                 fprintf(stderr, "Could not find path '%s': %s\n",
7633                         some_file, strerror(errno));
7634         }
7635         rc = llapi_hsm_request(fullpath, hur);
7636         if (rc) {
7637                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
7638                         some_file, strerror(-rc));
7639                 goto out_free;
7640         }
7641
7642 out_free:
7643         free(some_file);
7644         free(hur);
7645         return rc;
7646 }
7647
7648 static int lfs_hsm_archive(int argc, char **argv)
7649 {
7650         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
7651 }
7652
7653 static int lfs_hsm_restore(int argc, char **argv)
7654 {
7655         return lfs_hsm_request(argc, argv, HUA_RESTORE);
7656 }
7657
7658 static int lfs_hsm_release(int argc, char **argv)
7659 {
7660         return lfs_hsm_request(argc, argv, HUA_RELEASE);
7661 }
7662
7663 static int lfs_hsm_remove(int argc, char **argv)
7664 {
7665         return lfs_hsm_request(argc, argv, HUA_REMOVE);
7666 }
7667
7668 static int lfs_hsm_cancel(int argc, char **argv)
7669 {
7670         return lfs_hsm_request(argc, argv, HUA_CANCEL);
7671 }
7672
7673 static int lfs_swap_layouts(int argc, char **argv)
7674 {
7675         if (argc != 3)
7676                 return CMD_HELP;
7677
7678         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
7679                                   SWAP_LAYOUTS_KEEP_MTIME |
7680                                   SWAP_LAYOUTS_KEEP_ATIME);
7681 }
7682
7683 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
7684
7685 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
7686
7687 int lfs_get_mode(const char *string)
7688 {
7689         enum lock_mode_user mode;
7690
7691         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
7692                 if (lock_mode_names[mode] == NULL)
7693                         continue;
7694                 if (strcmp(string, lock_mode_names[mode]) == 0)
7695                         return mode;
7696         }
7697
7698         return -EINVAL;
7699 }
7700
7701 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
7702 {
7703         enum lu_ladvise_type advice;
7704
7705         for (advice = 0;
7706              advice < ARRAY_SIZE(ladvise_names); advice++) {
7707                 if (ladvise_names[advice] == NULL)
7708                         continue;
7709                 if (strcmp(string, ladvise_names[advice]) == 0)
7710                         return advice;
7711         }
7712
7713         return LU_LADVISE_INVALID;
7714 }
7715
7716 static int lfs_ladvise(int argc, char **argv)
7717 {
7718         struct option long_opts[] = {
7719         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
7720         { .val = 'b',   .name = "background",   .has_arg = no_argument },
7721         { .val = 'e',   .name = "end",          .has_arg = required_argument },
7722         { .val = 'l',   .name = "length",       .has_arg = required_argument },
7723         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
7724         { .val = 's',   .name = "start",        .has_arg = required_argument },
7725         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
7726         { .name = NULL } };
7727         char                     short_opts[] = "a:be:l:m:s:u";
7728         int                      c;
7729         int                      rc = 0;
7730         const char              *path;
7731         int                      fd;
7732         struct llapi_lu_ladvise  advice;
7733         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
7734         unsigned long long       start = 0;
7735         unsigned long long       end = LUSTRE_EOF;
7736         unsigned long long       length = 0;
7737         unsigned long long       size_units;
7738         unsigned long long       flags = 0;
7739         int                      mode = 0;
7740
7741         optind = 0;
7742         while ((c = getopt_long(argc, argv, short_opts,
7743                                 long_opts, NULL)) != -1) {
7744                 switch (c) {
7745                 case 'a':
7746                         advice_type = lfs_get_ladvice(optarg);
7747                         if (advice_type == LU_LADVISE_INVALID) {
7748                                 fprintf(stderr, "%s: invalid advice type "
7749                                         "'%s'\n", argv[0], optarg);
7750                                 fprintf(stderr, "Valid types:");
7751
7752                                 for (advice_type = 0;
7753                                      advice_type < ARRAY_SIZE(ladvise_names);
7754                                      advice_type++) {
7755                                         if (ladvise_names[advice_type] == NULL)
7756                                                 continue;
7757                                         fprintf(stderr, " %s",
7758                                                 ladvise_names[advice_type]);
7759                                 }
7760                                 fprintf(stderr, "\n");
7761
7762                                 return CMD_HELP;
7763                         }
7764                         break;
7765                 case 'b':
7766                         flags |= LF_ASYNC;
7767                         break;
7768                 case 'u':
7769                         flags |= LF_UNSET;
7770                         break;
7771                 case 'e':
7772                         size_units = 1;
7773                         rc = llapi_parse_size(optarg, &end,
7774                                               &size_units, 0);
7775                         if (rc) {
7776                                 fprintf(stderr, "%s: bad end offset '%s'\n",
7777                                         argv[0], optarg);
7778                                 return CMD_HELP;
7779                         }
7780                         break;
7781                 case 's':
7782                         size_units = 1;
7783                         rc = llapi_parse_size(optarg, &start,
7784                                               &size_units, 0);
7785                         if (rc) {
7786                                 fprintf(stderr, "%s: bad start offset "
7787                                         "'%s'\n", argv[0], optarg);
7788                                 return CMD_HELP;
7789                         }
7790                         break;
7791                 case 'l':
7792                         size_units = 1;
7793                         rc = llapi_parse_size(optarg, &length,
7794                                               &size_units, 0);
7795                         if (rc) {
7796                                 fprintf(stderr, "%s: bad length '%s'\n",
7797                                         argv[0], optarg);
7798                                 return CMD_HELP;
7799                         }
7800                         break;
7801                 case 'm':
7802                         mode = lfs_get_mode(optarg);
7803                         if (mode < 0) {
7804                                 fprintf(stderr, "%s: bad mode '%s', valid "
7805                                                  "modes are READ or WRITE\n",
7806                                         argv[0], optarg);
7807                                 return CMD_HELP;
7808                         }
7809                         break;
7810                 case '?':
7811                         return CMD_HELP;
7812                 default:
7813                         fprintf(stderr, "%s: option '%s' unrecognized\n",
7814                                 argv[0], argv[optind - 1]);
7815                         return CMD_HELP;
7816                 }
7817         }
7818
7819         if (advice_type == LU_LADVISE_INVALID) {
7820                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
7821                 fprintf(stderr, "Valid types:");
7822                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
7823                      advice_type++) {
7824                         if (ladvise_names[advice_type] == NULL)
7825                                 continue;
7826                         fprintf(stderr, " %s", ladvise_names[advice_type]);
7827                 }
7828                 fprintf(stderr, "\n");
7829                 return CMD_HELP;
7830         }
7831
7832         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
7833                 fprintf(stderr, "%s: Lock no expand advice is a per file "
7834                                  "descriptor advice, so when called from lfs, "
7835                                  "it does nothing.\n", argv[0]);
7836                 return CMD_HELP;
7837         }
7838
7839         if (argc <= optind) {
7840                 fprintf(stderr, "%s: please give one or more file names\n",
7841                         argv[0]);
7842                 return CMD_HELP;
7843         }
7844
7845         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
7846                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
7847                         argv[0]);
7848                 return CMD_HELP;
7849         }
7850
7851         if (end == LUSTRE_EOF && length != 0)
7852                 end = start + length;
7853
7854         if (end <= start) {
7855                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
7856                         argv[0], start, end);
7857                 return CMD_HELP;
7858         }
7859
7860         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
7861                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
7862                         argv[0]);
7863                 return CMD_HELP;
7864         }
7865
7866         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
7867                 fprintf(stderr, "%s: mode is required with lockahead\n",
7868                         argv[0]);
7869                 return CMD_HELP;
7870         }
7871
7872         while (optind < argc) {
7873                 int rc2;
7874
7875                 path = argv[optind++];
7876
7877                 fd = open(path, O_RDONLY);
7878                 if (fd < 0) {
7879                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
7880                                 argv[0], path, strerror(errno));
7881                         rc2 = -errno;
7882                         goto next;
7883                 }
7884
7885                 advice.lla_start = start;
7886                 advice.lla_end = end;
7887                 advice.lla_advice = advice_type;
7888                 advice.lla_value1 = 0;
7889                 advice.lla_value2 = 0;
7890                 advice.lla_value3 = 0;
7891                 advice.lla_value4 = 0;
7892                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
7893                         advice.lla_lockahead_mode = mode;
7894                         advice.lla_peradvice_flags = flags;
7895                 }
7896
7897                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
7898                 close(fd);
7899                 if (rc2 < 0) {
7900                         fprintf(stderr, "%s: cannot give advice '%s' to file "
7901                                 "'%s': %s\n", argv[0],
7902                                 ladvise_names[advice_type],
7903                                 path, strerror(errno));
7904
7905                         goto next;
7906                 }
7907
7908 next:
7909                 if (rc == 0 && rc2 < 0)
7910                         rc = rc2;
7911         }
7912         return rc;
7913 }
7914
7915
7916 static const char *const heat_names[] = LU_HEAT_NAMES;
7917
7918 static int lfs_heat_get(int argc, char **argv)
7919 {
7920         struct lu_heat  *heat;
7921         int              rc = 0, rc2;
7922         char            *path;
7923         int              fd;
7924         int              i;
7925
7926         if (argc <= 1)
7927                 return CMD_HELP;
7928
7929         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
7930         if (!heat) {
7931                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
7932                 return -ENOMEM;
7933         }
7934
7935         optind = 1;
7936         while (optind < argc) {
7937                 path = argv[optind++];
7938
7939                 fd = open(path, O_RDONLY);
7940                 if (fd < 0) {
7941                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
7942                                 argv[0], path, strerror(errno));
7943                         rc2 = -errno;
7944                         goto next;
7945                 }
7946
7947                 heat->lh_count = OBD_HEAT_COUNT;
7948                 rc2 = llapi_heat_get(fd, heat);
7949                 close(fd);
7950                 if (rc2 < 0) {
7951                         fprintf(stderr, "%s: cannot get heat of file '%s'"
7952                                 ": %s\n", argv[0], path, strerror(errno));
7953                         goto next;
7954                 }
7955
7956                 printf("flags: %x\n", heat->lh_flags);
7957                 for (i = 0; i < heat->lh_count; i++)
7958                         printf("%s: %llu\n", heat_names[i], heat->lh_heat[i]);
7959 next:
7960                 if (rc == 0 && rc2 < 0)
7961                         rc = rc2;
7962         }
7963
7964         free(heat);
7965         return rc;
7966 }
7967
7968 static int lfs_heat_set(int argc, char **argv)
7969 {
7970         struct option    long_opts[] = {
7971                 {"clear", no_argument, 0, 'c'},
7972                 {"off", no_argument, 0, 'o'},
7973                 {"on", no_argument, 0, 'O'},
7974                 {0, 0, 0, 0}
7975         };
7976         char             short_opts[] = "coO";
7977         int              rc = 0, rc2;
7978         char            *path;
7979         int              fd;
7980         __u64            flags = 0;
7981         int              c;
7982
7983         if (argc <= 1)
7984                 return CMD_HELP;
7985
7986         optind = 0;
7987         while ((c = getopt_long(argc, argv, short_opts,
7988                                 long_opts, NULL)) != -1) {
7989                 switch (c) {
7990                 case 'c':
7991                         flags |= LU_HEAT_FLAG_CLEAR;
7992                         break;
7993                 case 'o':
7994                         flags |= LU_HEAT_FLAG_CLEAR;
7995                         flags |= LU_HEAT_FLAG_OFF;
7996                         break;
7997                 case 'O':
7998                         flags &= ~LU_HEAT_FLAG_OFF;
7999                         break;
8000                 case '?':
8001                         return CMD_HELP;
8002                 default:
8003                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8004                                 argv[0], argv[optind - 1]);
8005                         return CMD_HELP;
8006                 }
8007         }
8008
8009         if (argc <= optind) {
8010                 fprintf(stderr, "%s: please give one or more file names\n",
8011                         argv[0]);
8012                 return CMD_HELP;
8013         }
8014
8015         while (optind < argc) {
8016                 path = argv[optind++];
8017
8018                 fd = open(path, O_RDONLY);
8019                 if (fd < 0) {
8020                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8021                                 argv[0], path, strerror(errno));
8022                         rc2 = -errno;
8023                         goto next;
8024                 }
8025
8026                 rc2 = llapi_heat_set(fd, flags);
8027                 close(fd);
8028                 if (rc2 < 0) {
8029                         fprintf(stderr, "%s: cannot setflags heat of file '%s'"
8030                                 ": %s\n", argv[0], path, strerror(errno));
8031                         goto next;
8032                 }
8033 next:
8034                 if (rc == 0 && rc2 < 0)
8035                         rc = rc2;
8036         }
8037         return rc;
8038 }
8039
8040 /** The input string contains a comma delimited list of component ids and
8041  * ranges, for example "1,2-4,7".
8042  */
8043 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
8044 {
8045         bool end_of_loop = false;
8046         char *ptr = NULL;
8047         int nr = 0;
8048         int rc;
8049
8050         if (arg == NULL)
8051                 return -EINVAL;
8052
8053         while (!end_of_loop) {
8054                 int start_index;
8055                 int end_index;
8056                 int i;
8057                 char *endptr = NULL;
8058
8059                 rc = -EINVAL;
8060                 ptr = strchrnul(arg, ',');
8061                 end_of_loop = *ptr == '\0';
8062                 *ptr = '\0';
8063
8064                 start_index = strtol(arg, &endptr, 0);
8065                 if (endptr == arg) /* no data at all */
8066                         break;
8067                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
8068                         break;
8069                 if (start_index < 0)
8070                         break;
8071
8072                 end_index = start_index;
8073                 if (*endptr == '-') {
8074                         end_index = strtol(endptr + 1, &endptr, 0);
8075                         if (*endptr != '\0')
8076                                 break;
8077                         if (end_index < start_index)
8078                                 break;
8079                 }
8080
8081                 for (i = start_index; i <= end_index && size > 0; i++) {
8082                         int j;
8083
8084                         /* remove duplicate */
8085                         for (j = 0; j < nr; j++) {
8086                                 if (ids[j] == i)
8087                                         break;
8088                         }
8089                         if (j == nr) { /* no duplicate */
8090                                 ids[nr++] = i;
8091                                 --size;
8092                         }
8093                 }
8094
8095                 if (size == 0 && i < end_index)
8096                         break;
8097
8098                 *ptr = ',';
8099                 arg = ++ptr;
8100                 rc = 0;
8101         }
8102         if (!end_of_loop && ptr != NULL)
8103                 *ptr = ',';
8104
8105         return rc < 0 ? rc : nr;
8106 }
8107
8108 /**
8109  * struct verify_mirror_id - Mirror id to be verified.
8110  * @mirror_id:   A specified mirror id.
8111  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
8112  */
8113 struct verify_mirror_id {
8114         __u16 mirror_id;
8115         bool is_valid_id;
8116 };
8117
8118 /**
8119  * compare_mirror_ids() - Compare mirror ids.
8120  * @layout: Mirror component list.
8121  * @cbdata: Callback data in verify_mirror_id structure.
8122  *
8123  * This is a callback function called by llapi_layout_comp_iterate()
8124  * to compare the specified mirror id with the one in the current
8125  * component of @layout. If they are the same, then the specified
8126  * mirror id is valid.
8127  *
8128  * Return: a negative error code on failure or
8129  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
8130  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
8131  */
8132 static inline
8133 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
8134 {
8135         struct verify_mirror_id *mirror_id_cbdata =
8136                                  (struct verify_mirror_id *)cbdata;
8137         uint32_t mirror_id;
8138         int rc = 0;
8139
8140         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
8141         if (rc < 0) {
8142                 rc = -errno;
8143                 fprintf(stderr,
8144                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
8145                         progname, strerror(errno));
8146                 return rc;
8147         }
8148
8149         if (mirror_id_cbdata->mirror_id == mirror_id) {
8150                 mirror_id_cbdata->is_valid_id = true;
8151                 return LLAPI_LAYOUT_ITER_STOP;
8152         }
8153
8154         return LLAPI_LAYOUT_ITER_CONT;
8155 }
8156
8157 /**
8158  * verify_mirror_ids() - Verify specified mirror ids.
8159  * @fname:      Mirrored file name.
8160  * @mirror_ids: Specified mirror ids to be verified.
8161  * @ids_nr:     Number of specified mirror ids.
8162  *
8163  * This function verifies that specified @mirror_ids are valid
8164  * in the mirrored file @fname.
8165  *
8166  * Return: 0 on success or a negative error code on failure.
8167  */
8168 static inline
8169 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
8170 {
8171         struct llapi_layout *layout = NULL;
8172         struct verify_mirror_id mirror_id_cbdata = { 0 };
8173         struct stat stbuf;
8174         uint32_t flr_state;
8175         int i;
8176         int fd;
8177         int rc = 0;
8178         int rc2 = 0;
8179
8180         if (ids_nr <= 0)
8181                 return -EINVAL;
8182
8183         if (stat(fname, &stbuf) < 0) {
8184                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8185                         progname, fname, strerror(errno));
8186                 rc = -errno;
8187                 goto error;
8188         }
8189
8190         if (!S_ISREG(stbuf.st_mode)) {
8191                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8192                         progname, fname);
8193                 rc = -EINVAL;
8194                 goto error;
8195         }
8196
8197         fd = open(fname, O_DIRECT | O_RDONLY);
8198         if (fd < 0) {
8199                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8200                         progname, fname, strerror(errno));
8201                 rc = -errno;
8202                 goto error;
8203         }
8204
8205         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
8206         if (rc < 0) {
8207                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
8208                         progname, fname, strerror(errno));
8209                 goto close_fd;
8210         }
8211
8212         layout = llapi_layout_get_by_fd(fd, 0);
8213         if (layout == NULL) {
8214                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8215                         progname, fname, strerror(errno));
8216                 rc = -errno;
8217                 llapi_lease_release(fd);
8218                 goto close_fd;
8219         }
8220
8221         rc = llapi_layout_flags_get(layout, &flr_state);
8222         if (rc < 0) {
8223                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8224                         progname, fname, strerror(errno));
8225                 rc = -errno;
8226                 goto free_layout;
8227         }
8228
8229         flr_state &= LCM_FL_FLR_MASK;
8230         switch (flr_state) {
8231         case LCM_FL_NONE:
8232                 rc = -EINVAL;
8233                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
8234                         progname, fname, llapi_layout_flags_string(flr_state));
8235                 goto free_layout;
8236         default:
8237                 break;
8238         }
8239
8240         rc2 = 0;
8241         for (i = 0; i < ids_nr; i++) {
8242                 mirror_id_cbdata.mirror_id = mirror_ids[i];
8243                 mirror_id_cbdata.is_valid_id = false;
8244
8245                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
8246                                                &mirror_id_cbdata);
8247                 if (rc < 0) {
8248                         rc = -errno;
8249                         fprintf(stderr,
8250                                 "%s: '%s' failed to verify mirror id: %u.\n",
8251                                 progname, fname, mirror_ids[i]);
8252                         goto free_layout;
8253                 }
8254
8255                 if (!mirror_id_cbdata.is_valid_id) {
8256                         rc2 = -EINVAL;
8257                         fprintf(stderr,
8258                                 "%s: '%s' invalid specified mirror id: %u.\n",
8259                                 progname, fname, mirror_ids[i]);
8260                 }
8261         }
8262         rc = rc2;
8263
8264 free_layout:
8265         llapi_layout_free(layout);
8266         llapi_lease_release(fd);
8267 close_fd:
8268         close(fd);
8269 error:
8270         return rc;
8271 }
8272
8273 static inline
8274 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
8275                            __u16 *mirror_ids, int ids_nr)
8276 {
8277         struct llapi_resync_comp comp_array[1024] = { { 0 } };
8278         struct llapi_layout *layout;
8279         struct stat stbuf;
8280         uint32_t flr_state;
8281         uint64_t start;
8282         uint64_t end;
8283         int comp_size = 0;
8284         int idx;
8285         int fd;
8286         int rc;
8287
8288         if (stat(fname, &stbuf) < 0) {
8289                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8290                         progname, fname, strerror(errno));
8291                 rc = -errno;
8292                 goto error;
8293         }
8294         if (!S_ISREG(stbuf.st_mode)) {
8295                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8296                         progname, fname);
8297                 rc = -EINVAL;
8298                 goto error;
8299         }
8300
8301         fd = open(fname, O_DIRECT | O_RDWR);
8302         if (fd < 0) {
8303                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8304                         progname, fname, strerror(errno));
8305                 rc = -errno;
8306                 goto error;
8307         }
8308
8309         layout = llapi_layout_get_by_fd(fd, 0);
8310         if (layout == NULL) {
8311                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8312                         progname, fname, strerror(errno));
8313                 rc = -errno;
8314                 goto close_fd;
8315         }
8316
8317         rc = llapi_layout_flags_get(layout, &flr_state);
8318         if (rc) {
8319                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8320                         progname, fname, strerror(errno));
8321                 rc = -errno;
8322                 goto free_layout;
8323         }
8324
8325         flr_state &= LCM_FL_FLR_MASK;
8326         if (flr_state == LCM_FL_NONE) {
8327                 rc = -EINVAL;
8328                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
8329                         progname, fname);
8330                 goto free_layout;
8331         }
8332
8333         /* get stale component info */
8334         comp_size = llapi_mirror_find_stale(layout, comp_array,
8335                                             ARRAY_SIZE(comp_array),
8336                                             mirror_ids, ids_nr);
8337         if (comp_size <= 0) {
8338                 rc = comp_size;
8339                 goto free_layout;
8340         }
8341
8342         ioc->lil_mode = LL_LEASE_WRLCK;
8343         ioc->lil_flags = LL_LEASE_RESYNC;
8344         rc = llapi_lease_set(fd, ioc);
8345         if (rc < 0) {
8346                 if (rc == -EALREADY)
8347                         rc = 0;
8348                 else
8349                         fprintf(stderr,
8350                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
8351                                 progname, fname, strerror(errno));
8352                 goto free_layout;
8353         }
8354
8355         /* get the read range [start, end) */
8356         start = comp_array[0].lrc_start;
8357         end = comp_array[0].lrc_end;
8358         for (idx = 1; idx < comp_size; idx++) {
8359                 if (comp_array[idx].lrc_start < start)
8360                         start = comp_array[idx].lrc_start;
8361                 if (end < comp_array[idx].lrc_end)
8362                         end = comp_array[idx].lrc_end;
8363         }
8364
8365         rc = llapi_lease_check(fd);
8366         if (rc != LL_LEASE_WRLCK) {
8367                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
8368                         progname, fname);
8369                 goto free_layout;
8370         }
8371
8372         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
8373                                       start, end);
8374         if (rc < 0)
8375                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %d.\n",
8376                         progname, fname, rc);
8377
8378         /* prepare ioc for lease put */
8379         ioc->lil_mode = LL_LEASE_UNLCK;
8380         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
8381         ioc->lil_count = 0;
8382         for (idx = 0; idx < comp_size; idx++) {
8383                 if (comp_array[idx].lrc_synced) {
8384                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
8385                         ioc->lil_count++;
8386                 }
8387         }
8388
8389         rc = llapi_lease_set(fd, ioc);
8390         if (rc <= 0) {
8391                 if (rc == 0) /* lost lease lock */
8392                         rc = -EBUSY;
8393                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
8394                         progname, fname, strerror(errno));
8395                 goto free_layout;
8396         }
8397         /**
8398          * llapi_lease_set returns lease mode when it request to unlock
8399          * the lease lock
8400          */
8401         rc = 0;
8402
8403 free_layout:
8404         llapi_layout_free(layout);
8405 close_fd:
8406         close(fd);
8407 error:
8408         return rc;
8409 }
8410
8411 static inline int lfs_mirror_resync(int argc, char **argv)
8412 {
8413         struct ll_ioc_lease *ioc = NULL;
8414         __u16 mirror_ids[128] = { 0 };
8415         int ids_nr = 0;
8416         int c;
8417         int rc = 0;
8418
8419         struct option long_opts[] = {
8420         { .val = 'o',   .name = "only",         .has_arg = required_argument },
8421         { .name = NULL } };
8422
8423         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
8424                 switch (c) {
8425                 case 'o':
8426                         rc = parse_mirror_ids(mirror_ids,
8427                                         sizeof(mirror_ids) / sizeof(__u16),
8428                                         optarg);
8429                         if (rc < 0) {
8430                                 fprintf(stderr,
8431                                         "%s: bad mirror ids '%s'.\n",
8432                                         argv[0], optarg);
8433                                 goto error;
8434                         }
8435                         ids_nr = rc;
8436                         break;
8437                 default:
8438                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
8439                                 argv[0], argv[optind - 1]);
8440                         rc = -EINVAL;
8441                         goto error;
8442                 }
8443         }
8444
8445         if (argc == optind) {
8446                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
8447                 rc = CMD_HELP;
8448                 goto error;
8449         }
8450
8451         if (ids_nr > 0 && argc > optind + 1) {
8452                 fprintf(stderr,
8453                     "%s: option '--only' cannot be used upon multiple files.\n",
8454                         argv[0]);
8455                 rc = CMD_HELP;
8456                 goto error;
8457
8458         }
8459
8460         if (ids_nr > 0) {
8461                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
8462                 if (rc < 0)
8463                         goto error;
8464         }
8465
8466         /* set the lease on the file */
8467         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
8468         if (ioc == NULL) {
8469                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
8470                         argv[0], strerror(errno));
8471                 rc = -errno;
8472                 goto error;
8473         }
8474
8475         for (; optind < argc; optind++) {
8476                 rc = lfs_mirror_resync_file(argv[optind], ioc,
8477                                             mirror_ids, ids_nr);
8478                 /* ignore previous file's error, continue with next file */
8479
8480                 /* reset ioc */
8481                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
8482         }
8483
8484         free(ioc);
8485 error:
8486         return rc;
8487 }
8488
8489 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
8490 {
8491         struct llapi_layout *layout;
8492         int rc;
8493
8494         layout = llapi_layout_get_by_fd(fd, 0);
8495         if (layout == NULL) {
8496                 fprintf(stderr, "could not get layout.\n");
8497                 return  -EINVAL;
8498         }
8499
8500         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
8501         if (rc < 0) {
8502                 fprintf(stderr, "failed to iterate layout\n");
8503                 llapi_layout_free(layout);
8504
8505                 return rc;
8506         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
8507                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
8508                 llapi_layout_free(layout);
8509
8510                 return -EINVAL;
8511         }
8512         llapi_layout_free(layout);
8513
8514         return 0;
8515 }
8516
8517 /**
8518  * Check whether two files are the same file
8519  * \retval      0  same file
8520  * \retval      1  not the same file
8521  * \retval      <0 error code
8522  */
8523 static inline int check_same_file(const char *f1, const char *f2)
8524 {
8525         struct stat stbuf1;
8526         struct stat stbuf2;
8527
8528         if (stat(f1, &stbuf1) < 0) {
8529                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
8530                         progname, f1, strerror(errno));
8531                 return -errno;
8532         }
8533
8534         if (stat(f2, &stbuf2) < 0) {
8535                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
8536                         progname, f2, strerror(errno));
8537                 return -errno;
8538         }
8539
8540         if (stbuf1.st_rdev == stbuf2.st_rdev &&
8541             stbuf1.st_ino == stbuf2.st_ino)
8542                 return 0;
8543
8544         return 1;
8545 }
8546
8547 static inline int lfs_mirror_read(int argc, char **argv)
8548 {
8549         int rc = CMD_HELP;
8550         __u16 mirror_id = 0;
8551         const char *outfile = NULL;
8552         char *fname;
8553         int fd = 0;
8554         int outfd;
8555         int c;
8556         void *buf;
8557         const size_t buflen = 4 << 20;
8558         off_t pos;
8559         struct option long_opts[] = {
8560         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
8561         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
8562         { .name = NULL } };
8563
8564         while ((c = getopt_long(argc, argv, "N:o:", long_opts, NULL)) >= 0) {
8565                 char *end;
8566
8567                 switch (c) {
8568                 case 'N':
8569                         mirror_id = strtoul(optarg, &end, 0);
8570                         if (*end != '\0' || mirror_id == 0) {
8571                                 fprintf(stderr,
8572                                         "%s %s: invalid mirror ID '%s'\n",
8573                                         progname, argv[0], optarg);
8574                                 return rc;
8575                         }
8576                         break;
8577                 case 'o':
8578                         outfile = optarg;
8579                         break;
8580                 default:
8581                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
8582                                 progname, argv[optind - 1]);
8583                         return -EINVAL;
8584                 }
8585         }
8586
8587         if (argc == optind) {
8588                 fprintf(stderr, "%s %s: no mirrored file provided\n",
8589                         progname, argv[0]);
8590                 return rc;
8591         } else if (argc > optind + 1) {
8592                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
8593                 return rc;
8594         }
8595
8596         if (mirror_id == 0) {
8597                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
8598                         progname, argv[0]);
8599                 return rc;
8600         }
8601
8602         /* open mirror file */
8603         fname = argv[optind];
8604
8605         if (outfile) {
8606                 rc = check_same_file(fname, outfile);
8607                 if (rc == 0) {
8608                         fprintf(stderr,
8609                         "%s %s: output file cannot be the mirrored file\n",
8610                                 progname, argv[0]);
8611                         return -EINVAL;
8612                 }
8613                 if (rc < 0)
8614                         return rc;
8615         }
8616
8617         fd = open(fname, O_DIRECT | O_RDONLY);
8618         if (fd < 0) {
8619                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
8620                         progname, argv[0], fname, strerror(errno));
8621                 return rc;
8622         }
8623
8624         /* verify mirror id */
8625         rc = verify_mirror_id_by_fd(fd, mirror_id);
8626         if (rc) {
8627                 fprintf(stderr,
8628                         "%s %s: cannot find mirror with ID %u in '%s'\n",
8629                         progname, argv[0], mirror_id, fname);
8630                 goto close_fd;
8631         }
8632
8633         /* open output file */
8634         if (outfile) {
8635                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
8636                 if (outfd < 0) {
8637                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
8638                                 progname, argv[0], outfile, strerror(errno));
8639                         rc = -errno;
8640                         goto close_fd;
8641                 }
8642         } else {
8643                 outfd = STDOUT_FILENO;
8644         }
8645
8646         /* allocate buffer */
8647         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
8648         if (rc) {
8649                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
8650                                 progname, argv[0], rc);
8651                 goto close_outfd;
8652         }
8653
8654         pos = 0;
8655         while (1) {
8656                 ssize_t bytes_read;
8657                 ssize_t written = 0;
8658
8659                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
8660                 if (bytes_read < 0) {
8661                         rc = bytes_read;
8662                         fprintf(stderr,
8663                                 "%s %s: fail to read data from mirror %u: %s\n",
8664                                 progname, argv[0], mirror_id, strerror(-rc));
8665                         goto free_buf;
8666                 }
8667
8668                 /* EOF reached */
8669                 if (bytes_read == 0)
8670                         break;
8671
8672                 while (written < bytes_read) {
8673                         ssize_t written2;
8674
8675                         written2 = write(outfd, buf + written,
8676                                          bytes_read - written);
8677                         if (written2 < 0) {
8678                                 fprintf(stderr,
8679                                         "%s %s: fail to write %s: %s\n",
8680                                         progname, argv[0], outfile ? : "STDOUT",
8681                                         strerror(errno));
8682                                 rc = -errno;
8683                                 goto free_buf;
8684                         }
8685                         written += written2;
8686                 }
8687
8688                 if (written != bytes_read) {
8689                         fprintf(stderr,
8690                 "%s %s: written %ld bytes does not match with %ld read.\n",
8691                                 progname, argv[0], written, bytes_read);
8692                         rc = -EIO;
8693                         goto free_buf;
8694                 }
8695
8696                 pos += bytes_read;
8697         }
8698
8699         fsync(outfd);
8700         rc = 0;
8701
8702 free_buf:
8703         free(buf);
8704 close_outfd:
8705         if (outfile)
8706                 close(outfd);
8707 close_fd:
8708         close(fd);
8709
8710         return rc;
8711 }
8712
8713 static inline int lfs_mirror_write(int argc, char **argv)
8714 {
8715         int rc = CMD_HELP;
8716         __u16 mirror_id = 0;
8717         const char *inputfile = NULL;
8718         char *fname;
8719         int fd = 0;
8720         int inputfd;
8721         int c;
8722         void *buf;
8723         const size_t buflen = 4 << 20;
8724         off_t pos;
8725         size_t page_size = sysconf(_SC_PAGESIZE);
8726         struct ll_ioc_lease_id ioc;
8727
8728         struct option long_opts[] = {
8729         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
8730         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
8731         { .name = NULL } };
8732
8733         while ((c = getopt_long(argc, argv, "N:i:", long_opts, NULL)) >= 0) {
8734                 char *end;
8735
8736                 switch (c) {
8737                 case 'N':
8738                         mirror_id = strtoul(optarg, &end, 0);
8739                         if (*end != '\0' || mirror_id == 0) {
8740                                 fprintf(stderr,
8741                                         "%s %s: invalid mirror ID '%s'\n",
8742                                         progname, argv[0], optarg);
8743                                 return rc;
8744                         }
8745                         break;
8746                 case 'i':
8747                         inputfile = optarg;
8748                         break;
8749                 default:
8750                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8751                                 progname, argv[optind - 1]);
8752                         return -EINVAL;
8753                 }
8754         }
8755
8756         if (argc == optind) {
8757                 fprintf(stderr, "%s %s: no mirrored file provided\n",
8758                         progname, argv[0]);
8759                 return rc;
8760         } else if (argc > optind + 1) {
8761                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
8762                 return rc;
8763         }
8764
8765         if (mirror_id == 0) {
8766                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
8767                         progname, argv[0]);
8768                 return rc;
8769         }
8770
8771         /* open mirror file */
8772         fname = argv[optind];
8773
8774         if (inputfile) {
8775                 rc = check_same_file(fname, inputfile);
8776                 if (rc == 0) {
8777                         fprintf(stderr,
8778                         "%s %s: input file cannot be the mirrored file\n",
8779                                 progname, argv[0]);
8780                         return -EINVAL;
8781                 }
8782                 if (rc < 0)
8783                         return rc;
8784         }
8785
8786         fd = open(fname, O_DIRECT | O_WRONLY);
8787         if (fd < 0) {
8788                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
8789                         progname, argv[0], fname, strerror(errno));
8790                 return rc;
8791         }
8792
8793         /* verify mirror id */
8794         rc = verify_mirror_id_by_fd(fd, mirror_id);
8795         if (rc) {
8796                 fprintf(stderr,
8797                         "%s %s: cannot find mirror with ID %u in '%s'\n",
8798                         progname, argv[0], mirror_id, fname);
8799                 goto close_fd;
8800         }
8801
8802         /* open input file */
8803         if (inputfile) {
8804                 inputfd = open(inputfile, O_RDONLY, 0644);
8805                 if (inputfd < 0) {
8806                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
8807                                 progname, argv[0], inputfile, strerror(errno));
8808                         rc = -errno;
8809                         goto close_fd;
8810                 }
8811         } else {
8812                 inputfd = STDIN_FILENO;
8813         }
8814
8815         /* allocate buffer */
8816         rc = posix_memalign(&buf, page_size, buflen);
8817         if (rc) {
8818                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
8819                         progname, argv[0], rc);
8820                 goto close_inputfd;
8821         }
8822
8823         /* prepare target mirror components instantiation */
8824         ioc.lil_mode = LL_LEASE_WRLCK;
8825         ioc.lil_flags = LL_LEASE_RESYNC;
8826         ioc.lil_mirror_id = mirror_id;
8827         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
8828         if (rc < 0) {
8829                 fprintf(stderr,
8830                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
8831                         progname, argv[0], fname, strerror(errno));
8832                 goto free_buf;
8833         }
8834
8835         pos = 0;
8836         while (1) {
8837                 ssize_t bytes_read;
8838                 ssize_t written;
8839                 size_t to_write;
8840
8841                 rc = llapi_lease_check(fd);
8842                 if (rc != LL_LEASE_WRLCK) {
8843                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
8844                                 progname, argv[0], fname);
8845                         goto free_buf;
8846                 }
8847
8848                 bytes_read = read(inputfd, buf, buflen);
8849                 if (bytes_read < 0) {
8850                         rc = bytes_read;
8851                         fprintf(stderr,
8852                                 "%s %s: fail to read data from '%s': %s\n",
8853                                 progname, argv[0], inputfile ? : "STDIN",
8854                                 strerror(errno));
8855                         rc = -errno;
8856                         goto free_buf;
8857                 }
8858
8859                 /* EOF reached */
8860                 if (bytes_read == 0)
8861                         break;
8862
8863                 /* round up to page align to make direct IO happy. */
8864                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
8865
8866                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
8867                                              pos);
8868                 if (written < 0) {
8869                         rc = written;
8870                         fprintf(stderr,
8871                               "%s %s: fail to write to mirror %u: %s\n",
8872                                 progname, argv[0], mirror_id,
8873                                 strerror(-rc));
8874                         goto free_buf;
8875                 }
8876
8877                 pos += bytes_read;
8878         }
8879
8880         if (pos & (page_size - 1)) {
8881                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
8882                 if (rc < 0)
8883                         goto free_buf;
8884         }
8885
8886         ioc.lil_mode = LL_LEASE_UNLCK;
8887         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
8888         ioc.lil_count = 0;
8889         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
8890         if (rc <= 0) {
8891                 if (rc == 0)
8892                         rc = -EBUSY;
8893                 fprintf(stderr,
8894                         "%s %s: release lease lock of '%s' failed: %s\n",
8895                         progname, argv[0], fname, strerror(errno));
8896                 goto free_buf;
8897         }
8898
8899         rc = 0;
8900
8901 free_buf:
8902         free(buf);
8903 close_inputfd:
8904         if (inputfile)
8905                 close(inputfd);
8906 close_fd:
8907         close(fd);
8908
8909         return rc;
8910 }
8911
8912 struct collect_ids_data {
8913         __u16   *cid_ids;
8914         int     cid_count;
8915         __u16   cid_exclude;
8916 };
8917
8918 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
8919 {
8920         struct collect_ids_data *cid = cbdata;
8921         uint32_t id;
8922         int rc;
8923
8924         rc = llapi_layout_mirror_id_get(layout, &id);
8925         if (rc < 0)
8926                 return rc;
8927
8928         if ((__u16)id != cid->cid_exclude) {
8929                 int i;
8930
8931                 for (i = 0; i < cid->cid_count; i++) {
8932                         /* already collected the mirror id */
8933                         if (id == cid->cid_ids[i])
8934                                 return LLAPI_LAYOUT_ITER_CONT;
8935                 }
8936                 cid->cid_ids[cid->cid_count] = id;
8937                 cid->cid_count++;
8938         }
8939
8940         return LLAPI_LAYOUT_ITER_CONT;
8941 }
8942
8943 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
8944 {
8945         struct llapi_layout *layout;
8946         struct collect_ids_data cid = { .cid_ids = ids,
8947                                         .cid_count = 0,
8948                                         .cid_exclude = exclude_id, };
8949         int rc;
8950
8951         layout = llapi_layout_get_by_fd(fd, 0);
8952         if (layout == NULL) {
8953                 fprintf(stderr, "could not get layout\n");
8954                 return -EINVAL;
8955         }
8956
8957         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
8958         if (rc < 0) {
8959                 fprintf(stderr, "failed to iterate layout\n");
8960                 llapi_layout_free(layout);
8961
8962                 return rc;
8963         }
8964         llapi_layout_free(layout);
8965
8966         return cid.cid_count;
8967 }
8968
8969 static inline int lfs_mirror_copy(int argc, char **argv)
8970 {
8971         int rc = CMD_HELP;
8972         __u16 read_mirror_id = 0;
8973         __u16 ids[128] = { 0 };
8974         int count = 0;
8975         struct llapi_layout *layout = NULL;
8976         struct llapi_resync_comp comp_array[1024] = { { 0 } };
8977         int comp_size = 0;
8978         char *fname;
8979         int fd = 0;
8980         int c;
8981         int i;
8982         ssize_t copied;
8983         struct ll_ioc_lease *ioc = NULL;
8984         struct ll_ioc_lease_id *resync_ioc;
8985
8986         struct option long_opts[] = {
8987         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
8988         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
8989         { .name = NULL } };
8990
8991         while ((c = getopt_long(argc, argv, "i:o:", long_opts, NULL)) >= 0) {
8992                 char *end;
8993
8994                 switch (c) {
8995                 case 'i':
8996                         read_mirror_id = strtoul(optarg, &end, 0);
8997                         if (*end != '\0' || read_mirror_id == 0) {
8998                                 fprintf(stderr,
8999                                         "%s %s: invalid read mirror ID '%s'\n",
9000                                         progname, argv[0], optarg);
9001                                 return rc;
9002                         }
9003                         break;
9004                 case 'o':
9005                         if (!strcmp(optarg, "-1")) {
9006                                 /* specify all other mirrors */
9007                                 ids[0] = (__u16)-1;
9008                                 count = 1;
9009                         } else {
9010                                 count = parse_mirror_ids((__u16 *)ids,
9011                                                          ARRAY_SIZE(ids),
9012                                                          optarg);
9013                                 if (count < 0)
9014                                         return rc;
9015                         }
9016                         break;
9017                 default:
9018                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9019                                 progname, argv[optind - 1]);
9020                         return -EINVAL;
9021                 }
9022         }
9023
9024         if (argc == optind) {
9025                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9026                         progname, argv[0]);
9027                 return rc;
9028         } else if (argc > optind + 1) {
9029                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9030                 return rc;
9031         }
9032
9033         if (read_mirror_id == 0) {
9034                 fprintf(stderr,
9035                         "%s %s: no valid read mirror ID %d is provided\n",
9036                         progname, argv[0], read_mirror_id);
9037                 return rc;
9038         }
9039
9040         if (count == 0) {
9041                 fprintf(stderr,
9042                         "%s %s: no write mirror ID is provided\n",
9043                         progname, argv[0]);
9044                 return rc;
9045         }
9046
9047         for (i = 0; i < count; i++) {
9048                 if (read_mirror_id == ids[i]) {
9049                         fprintf(stderr,
9050                         "%s %s: read and write mirror ID cannot be the same\n",
9051                                 progname, argv[0]);
9052                         return rc;
9053                 }
9054         }
9055
9056         /* open mirror file */
9057         fname = argv[optind];
9058
9059         fd = open(fname, O_DIRECT | O_RDWR);
9060         if (fd < 0) {
9061                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9062                         progname, argv[0], fname, strerror(errno));
9063                 return rc;
9064         }
9065
9066         /* write to all other mirrors */
9067         if (ids[0] == (__u16)-1) {
9068                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
9069                 if (count <= 0) {
9070                         rc = count;
9071                         fprintf(stderr,
9072                         "%s %s: failed to get other mirror ids in '%s': %d\n",
9073                                 progname, argv[0], fname, rc);
9074                         goto close_fd;
9075                 }
9076         }
9077
9078         /* verify mirror id */
9079         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
9080         if (rc) {
9081                 fprintf(stderr,
9082                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9083                         progname, argv[0], read_mirror_id, fname);
9084                 goto close_fd;
9085         }
9086
9087         for (i = 0; i < count; i++) {
9088                 rc = verify_mirror_id_by_fd(fd, ids[i]);
9089                 if (rc) {
9090                         fprintf(stderr,
9091                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9092                                 progname, argv[0], ids[i], fname);
9093                         goto close_fd;
9094                 }
9095         }
9096
9097         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
9098         if (ioc == NULL) {
9099                 fprintf(stderr,
9100                         "%s %s: cannot alloc comp id array for ioc: %s\n",
9101                         progname, argv[0], strerror(errno));
9102                 rc = -errno;
9103                 goto close_fd;
9104         }
9105
9106         /* get stale component info */
9107         layout = llapi_layout_get_by_fd(fd, 0);
9108         if (layout == NULL) {
9109                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
9110                         progname, argv[0], fname, strerror(errno));
9111                 rc = -errno;
9112                 goto free_ioc;
9113         }
9114         comp_size = llapi_mirror_find_stale(layout, comp_array,
9115                                             ARRAY_SIZE(comp_array),
9116                                             ids, count);
9117         llapi_layout_free(layout);
9118         if (comp_size < 0) {
9119                 rc = comp_size;
9120                 goto free_ioc;
9121         }
9122
9123         /* prepare target mirror components instantiation */
9124         resync_ioc = (struct ll_ioc_lease_id *)ioc;
9125         resync_ioc->lil_mode = LL_LEASE_WRLCK;
9126         resync_ioc->lil_flags = LL_LEASE_RESYNC;
9127         if (count == 1)
9128                 resync_ioc->lil_mirror_id = ids[0];
9129         else
9130                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
9131         rc = llapi_lease_set(fd, ioc);
9132         if (rc < 0) {
9133                 fprintf(stderr,
9134                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
9135                         progname, argv[0], fname, strerror(errno));
9136                 goto free_ioc;
9137         }
9138
9139         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
9140         if (copied < 0) {
9141                 rc = copied;
9142                 fprintf(stderr, "%s %s: copy error: %d\n",
9143                         progname, argv[0], rc);
9144                 goto free_ioc;
9145         }
9146
9147         fprintf(stdout, "mirror copied successfully: ");
9148         for (i = 0; i < copied; i++)
9149                 fprintf(stdout, "%d ", ids[i]);
9150         fprintf(stdout, "\n");
9151
9152         ioc->lil_mode = LL_LEASE_UNLCK;
9153         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
9154         ioc->lil_count = 0;
9155         for (i = 0; i < comp_size; i++) {
9156                 int j;
9157
9158                 for (j = 0; j < copied; j++) {
9159                         if (comp_array[i].lrc_mirror_id != ids[j])
9160                                 continue;
9161
9162                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
9163                         ioc->lil_count++;
9164                 }
9165         }
9166         rc = llapi_lease_set(fd, ioc);
9167         if (rc <= 0) {
9168                 if (rc == 0)
9169                         rc = -EBUSY;
9170                 fprintf(stderr,
9171                         "%s %s: release lease lock of '%s' failed: %s\n",
9172                         progname, argv[0], fname, strerror(errno));
9173                 goto free_ioc;
9174         }
9175
9176         rc = 0;
9177
9178 free_ioc:
9179         free(ioc);
9180 close_fd:
9181         close(fd);
9182
9183         return rc;
9184 }
9185 /**
9186  * struct verify_chunk - Mirror chunk to be verified.
9187  * @chunk:        [start, end) of the chunk.
9188  * @mirror_count: Number of mirror ids in @mirror_id array.
9189  * @mirror_id:    Array of valid mirror ids that cover the chunk.
9190  */
9191 struct verify_chunk {
9192         struct lu_extent chunk;
9193         unsigned int mirror_count;
9194         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
9195 };
9196
9197 /**
9198  * print_chunks() - Print chunk information.
9199  * @fname:       Mirrored file name.
9200  * @chunks:      Array of chunks.
9201  * @chunk_count: Number of chunks in @chunks array.
9202  *
9203  * This function prints [start, end) of each chunk in @chunks
9204  * for mirrored file @fname, and also prints the valid mirror ids
9205  * that cover the chunk.
9206  *
9207  * Return: void.
9208  */
9209 static inline
9210 void print_chunks(const char *fname, struct verify_chunk *chunks,
9211                   int chunk_count)
9212 {
9213         int i;
9214         int j;
9215
9216         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
9217         for (i = 0; i < chunk_count; i++) {
9218                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
9219
9220                 if (chunks[i].mirror_count == 0)
9221                         fprintf(stdout, "\t[");
9222                 else {
9223                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
9224                         for (j = 1; j < chunks[i].mirror_count; j++)
9225                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
9226                 }
9227                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
9228         }
9229         fprintf(stdout, "\n");
9230 }
9231
9232 /**
9233  * print_checksums() - Print CRC-32 checksum values.
9234  * @chunk: A chunk and its corresponding valid mirror ids.
9235  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
9236  *
9237  * This function prints CRC-32 checksum values on @chunk for
9238  * each valid mirror that covers it.
9239  *
9240  * Return: void.
9241  */
9242 static inline
9243 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
9244 {
9245         int i;
9246
9247         fprintf(stdout,
9248                 "CRC-32 checksum value for chunk "DEXT":\n",
9249                 PEXT(&chunk->chunk));
9250         for (i = 0; i < chunk->mirror_count; i++)
9251                 fprintf(stdout, "Mirror %u:\t%#lx\n",
9252                         chunk->mirror_id[i], crc[i]);
9253         fprintf(stdout, "\n");
9254 }
9255
9256 /**
9257  * filter_mirror_id() - Filter specified mirror ids.
9258  * @chunks:      Array of chunks.
9259  * @chunk_count: Number of chunks in @chunks array.
9260  * @mirror_ids:  Specified mirror ids to be verified.
9261  * @ids_nr:      Number of specified mirror ids.
9262  *
9263  * This function scans valid mirror ids that cover each chunk in @chunks
9264  * and filters specified mirror ids.
9265  *
9266  * Return: void.
9267  */
9268 static inline
9269 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
9270                       __u16 *mirror_ids, int ids_nr)
9271 {
9272         int i;
9273         int j;
9274         int k;
9275         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9276         unsigned int valid_count = 0;
9277
9278         for (i = 0; i < chunk_count; i++) {
9279                 if (chunks[i].mirror_count == 0)
9280                         continue;
9281
9282                 valid_count = 0;
9283                 for (j = 0; j < ids_nr; j++) {
9284                         for (k = 0; k < chunks[i].mirror_count; k++) {
9285                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
9286                                         valid_id[valid_count] = mirror_ids[j];
9287                                         valid_count++;
9288                                         break;
9289                                 }
9290                         }
9291                 }
9292
9293                 memcpy(chunks[i].mirror_id, valid_id,
9294                        sizeof(__u16) * valid_count);
9295                 chunks[i].mirror_count = valid_count;
9296         }
9297 }
9298
9299 /**
9300  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
9301  * @layout:      Mirror component list.
9302  * @chunks:      Array of chunks.
9303  * @chunks_size: Array size of @chunks.
9304  *
9305  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
9306  * to find out chunk segments and store them in @chunks array.
9307  *
9308  * The @mirror_id array in each element of @chunks will store the valid
9309  * mirror ids that cover the chunk. If a mirror component covering the
9310  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
9311  * will not be stored into the @mirror_id array, and the chunk for that
9312  * mirror will not be verified.
9313  *
9314  * The @mirror_count in each element of @chunks will store the number of
9315  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
9316  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
9317  * indicates the chunk is valid in only one mirror. In both cases, the
9318  * chunk will not be verified.
9319  *
9320  * Here is an example:
9321  *
9322  *  0      1M     2M     3M     4M           EOF
9323  *  +------+-------------+--------------------+
9324  *  |      |             |      S             |       mirror1
9325  *  +------+------+------+------+-------------+
9326  *  |             |   S  |   S  |             |       mirror2
9327  *  +-------------+------+------+-------------+
9328  *
9329  * prepared @chunks array will contain 5 elements:
9330  * (([0, 1M), [1, 2], 2),
9331  *  ([1M, 2M), [1, 2], 2),
9332  *  ([2M, 3M), [1], 1),
9333  *  ([3M, 4M], [], 0),
9334  *  ([4M, EOF), [2], 1))
9335  *
9336  * Return: the actual array size of @chunks on success
9337  *         or a negative error code on failure.
9338  */
9339 static inline
9340 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
9341                              struct verify_chunk *chunks,
9342                              size_t chunks_size)
9343 {
9344         uint64_t start;
9345         uint64_t end;
9346         uint32_t mirror_id;
9347         uint32_t flags;
9348         int idx = 0;
9349         int i = 0;
9350         int rc = 0;
9351
9352         memset(chunks, 0, sizeof(*chunks) * chunks_size);
9353
9354         while (1) {
9355                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
9356                 if (rc < 0) {
9357                         fprintf(stderr,
9358                                 "%s: move to the first layout component: %s.\n",
9359                                 progname, strerror(errno));
9360                         goto error;
9361                 }
9362
9363                 i = 0;
9364                 rc = 0;
9365                 chunks[idx].chunk.e_end = LUSTRE_EOF;
9366                 while (rc == 0) {
9367                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
9368                         if (rc < 0) {
9369                                 fprintf(stderr,
9370                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
9371                                         progname, strerror(errno));
9372                                 goto error;
9373                         }
9374
9375                         if (start > chunks[idx].chunk.e_start ||
9376                             end <= chunks[idx].chunk.e_start)
9377                                 goto next;
9378
9379                         if (end < chunks[idx].chunk.e_end)
9380                                 chunks[idx].chunk.e_end = end;
9381
9382                         rc = llapi_layout_comp_flags_get(layout, &flags);
9383                         if (rc < 0) {
9384                                 fprintf(stderr,
9385                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
9386                                         progname, strerror(errno));
9387                                 goto error;
9388                         }
9389
9390                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
9391                                 goto next;
9392
9393                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
9394                         if (rc < 0) {
9395                                 fprintf(stderr,
9396                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
9397                                         progname, strerror(errno));
9398                                 goto error;
9399                         }
9400
9401                         chunks[idx].mirror_id[i] = mirror_id;
9402                         i++;
9403                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
9404                                 fprintf(stderr,
9405                                         "%s: mirror_id array is too small.\n",
9406                                         progname);
9407                                 rc = -EINVAL;
9408                                 goto error;
9409                         }
9410
9411                 next:
9412                         rc = llapi_layout_comp_use(layout,
9413                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
9414                         if (rc < 0) {
9415                                 fprintf(stderr,
9416                                         "%s: move to the next layout component: %s.\n",
9417                                         progname, strerror(errno));
9418                                 goto error;
9419                         }
9420                 } /* loop through all components */
9421
9422                 chunks[idx].mirror_count = i;
9423
9424                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
9425                         break;
9426
9427                 idx++;
9428                 if (idx >= chunks_size) {
9429                         fprintf(stderr, "%s: chunks array is too small.\n",
9430                                 progname);
9431                         rc = -EINVAL;
9432                         goto error;
9433                 }
9434
9435                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
9436         }
9437
9438 error:
9439         return rc < 0 ? rc : idx + 1;
9440 }
9441
9442 /**
9443  * lfs_mirror_verify_chunk() - Verify a chunk.
9444  * @fd:        File descriptor of the mirrored file.
9445  * @file_size: Size of the mirrored file.
9446  * @chunk:     A chunk and its corresponding valid mirror ids.
9447  * @verbose:   Verbose mode.
9448  *
9449  * This function verifies a @chunk contains exactly the same data
9450  * ammong the mirrors that cover it.
9451  *
9452  * If @verbose is specified, then the function will print where the
9453  * differences are if the data do not match. Otherwise, it will
9454  * just return an error in that case.
9455  *
9456  * Return: 0 on success or a negative error code on failure.
9457  */
9458 static inline
9459 int lfs_mirror_verify_chunk(int fd, size_t file_size,
9460                             struct verify_chunk *chunk, int verbose)
9461 {
9462         const size_t buflen = 4 * 1024 * 1024; /* 4M */
9463         void *buf;
9464         size_t page_size = sysconf(_SC_PAGESIZE);
9465         ssize_t bytes_read;
9466         ssize_t bytes_done;
9467         size_t count;
9468         off_t pos;
9469         unsigned long crc;
9470         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9471         int i;
9472         int rc = 0;
9473
9474         if (file_size == 0)
9475                 return 0;
9476
9477         rc = posix_memalign(&buf, page_size, buflen);
9478         if (rc) /* error code is returned directly */
9479                 return -rc;
9480
9481         if (verbose > 1) {
9482                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
9483                         PEXT(&chunk->chunk));
9484                 for (i = 0; i < chunk->mirror_count; i++)
9485                         fprintf(stdout, " %u", chunk->mirror_id[i]);
9486                 fprintf(stdout, "\n");
9487         }
9488
9489         bytes_done = 0;
9490         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
9491         pos = chunk->chunk.e_start;
9492         while (bytes_done < count) {
9493                 /* compute initial CRC-32 checksum */
9494                 crc = crc32(0L, Z_NULL, 0);
9495                 memset(crc_array, 0, sizeof(crc_array));
9496
9497                 bytes_read = 0;
9498                 for (i = 0; i < chunk->mirror_count; i++) {
9499                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
9500                                                        buf, buflen, pos);
9501                         if (bytes_read < 0) {
9502                                 rc = bytes_read;
9503                                 fprintf(stderr,
9504                                         "%s: failed to read data from mirror %u: %s.\n",
9505                                         progname, chunk->mirror_id[i],
9506                                         strerror(-rc));
9507                                 goto error;
9508                         }
9509
9510                         /* compute new CRC-32 checksum */
9511                         crc_array[i] = crc32(crc, buf, bytes_read);
9512                 }
9513
9514                 if (verbose)
9515                         print_checksums(chunk, crc_array);
9516
9517                 /* compare CRC-32 checksum values */
9518                 for (i = 1; i < chunk->mirror_count; i++) {
9519                         if (crc_array[i] != crc_array[0]) {
9520                                 rc = -EINVAL;
9521
9522                                 fprintf(stderr,
9523                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
9524                                         progname, PEXT(&chunk->chunk),
9525                                         chunk->mirror_id[0],
9526                                         chunk->mirror_id[i]);
9527                         }
9528                 }
9529
9530                 pos += bytes_read;
9531                 bytes_done += bytes_read;
9532         }
9533
9534         if (verbose > 1 && rc == 0) {
9535                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
9536                         PEXT(&chunk->chunk));
9537                 for (i = 0; i < chunk->mirror_count; i++)
9538                         fprintf(stdout, " %u", chunk->mirror_id[i]);
9539                 fprintf(stdout, " PASS\n\n");
9540         }
9541
9542 error:
9543         free(buf);
9544         return rc;
9545 }
9546
9547 /**
9548  * lfs_mirror_verify_file() - Verify a mirrored file.
9549  * @fname:      Mirrored file name.
9550  * @mirror_ids: Specified mirror ids to be verified.
9551  * @ids_nr:     Number of specified mirror ids.
9552  * @verbose:    Verbose mode.
9553  *
9554  * This function verifies that each SYNC mirror of a mirrored file
9555  * specified by @fname contains exactly the same data.
9556  *
9557  * If @mirror_ids is specified, then the function will verify the
9558  * mirrors specified by @mirror_ids contain exactly the same data.
9559  *
9560  * If @verbose is specified, then the function will print where the
9561  * differences are if the data do not match. Otherwise, it will
9562  * just return an error in that case.
9563  *
9564  * Return: 0 on success or a negative error code on failure.
9565  */
9566 static inline
9567 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
9568                            int verbose)
9569 {
9570         struct verify_chunk chunks_array[1024] = { };
9571         struct llapi_layout *layout = NULL;
9572         struct stat stbuf;
9573         uint32_t flr_state;
9574         int fd;
9575         int chunk_count = 0;
9576         int idx = 0;
9577         int rc = 0;
9578         int rc1 = 0;
9579         int rc2 = 0;
9580
9581         if (stat(fname, &stbuf) < 0) {
9582                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9583                         progname, fname, strerror(errno));
9584                 rc = -errno;
9585                 goto error;
9586         }
9587
9588         if (!S_ISREG(stbuf.st_mode)) {
9589                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9590                         progname, fname);
9591                 rc = -EINVAL;
9592                 goto error;
9593         }
9594
9595         if (stbuf.st_size == 0) {
9596                 if (verbose)
9597                         fprintf(stdout, "%s: '%s' file size is 0.\n",
9598                                 progname, fname);
9599                 rc = 0;
9600                 goto error;
9601         }
9602
9603         fd = open(fname, O_DIRECT | O_RDONLY);
9604         if (fd < 0) {
9605                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9606                         progname, fname, strerror(errno));
9607                 rc = -errno;
9608                 goto error;
9609         }
9610
9611         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
9612         if (rc < 0) {
9613                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
9614                         progname, fname, strerror(errno));
9615                 goto close_fd;
9616         }
9617
9618         layout = llapi_layout_get_by_fd(fd, 0);
9619         if (layout == NULL) {
9620                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9621                         progname, fname, strerror(errno));
9622                 rc = -errno;
9623                 llapi_lease_release(fd);
9624                 goto close_fd;
9625         }
9626
9627         rc = llapi_layout_flags_get(layout, &flr_state);
9628         if (rc < 0) {
9629                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9630                         progname, fname, strerror(errno));
9631                 rc = -errno;
9632                 goto free_layout;
9633         }
9634
9635         flr_state &= LCM_FL_FLR_MASK;
9636         switch (flr_state) {
9637         case LCM_FL_NONE:
9638                 rc = -EINVAL;
9639                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
9640                         progname, fname, llapi_layout_flags_string(flr_state));
9641                 goto free_layout;
9642         default:
9643                 break;
9644         }
9645
9646         /* find out mirror chunks to be verified */
9647         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
9648                                                ARRAY_SIZE(chunks_array));
9649         if (chunk_count < 0) {
9650                 rc = chunk_count;
9651                 goto free_layout;
9652         }
9653
9654         if (ids_nr > 0)
9655                 /* filter specified mirror ids */
9656                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
9657
9658         if (verbose > 2)
9659                 print_chunks(fname, chunks_array, chunk_count);
9660
9661         for (idx = 0; idx < chunk_count; idx++) {
9662                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
9663                         if (verbose)
9664                                 fprintf(stdout,
9665                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
9666                                         progname, fname,
9667                                         PEXT(&chunks_array[idx].chunk),
9668                                         (unsigned long long)stbuf.st_size);
9669                         break;
9670                 }
9671
9672                 if (chunks_array[idx].mirror_count == 0) {
9673                         fprintf(stderr,
9674                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
9675                                 progname, fname,
9676                                 PEXT(&chunks_array[idx].chunk));
9677                         if (verbose) {
9678                                 fprintf(stderr, "skipped\n");
9679                                 continue;
9680                         }
9681                         rc = -EINVAL;
9682                         fprintf(stderr, "failed\n");
9683                         goto free_layout;
9684                 }
9685
9686                 if (chunks_array[idx].mirror_count == 1) {
9687                         if (verbose)
9688                                 fprintf(stdout,
9689                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
9690                                         progname, fname,
9691                                         PEXT(&chunks_array[idx].chunk),
9692                                         chunks_array[idx].mirror_id[0]);
9693                         continue;
9694                 }
9695
9696                 rc = llapi_lease_check(fd);
9697                 if (rc != LL_LEASE_RDLCK) {
9698                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
9699                                 progname, fname);
9700                         goto free_layout;
9701                 }
9702
9703                 /* verify one chunk */
9704                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
9705                                               &chunks_array[idx], verbose);
9706                 if (rc1 < 0) {
9707                         rc2 = rc1;
9708                         if (!verbose) {
9709                                 rc = rc1;
9710                                 goto free_layout;
9711                         }
9712                 }
9713         }
9714
9715         if (rc2 < 0)
9716                 rc = rc2;
9717
9718 free_layout:
9719         llapi_layout_free(layout);
9720         llapi_lease_release(fd);
9721 close_fd:
9722         close(fd);
9723 error:
9724         return rc;
9725 }
9726
9727 /**
9728  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
9729  * @argc: The count of lfs mirror verify command line arguments.
9730  * @argv: Array of strings for lfs mirror verify command line arguments.
9731  *
9732  * This function parses lfs mirror verify command and verifies the
9733  * specified mirrored file(s).
9734  *
9735  * Return: 0 on success or a negative error code on failure.
9736  */
9737 static inline int lfs_mirror_verify(int argc, char **argv)
9738 {
9739         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9740         int ids_nr = 0;
9741         int c;
9742         int verbose = 0;
9743         int rc = 0;
9744         int rc1 = 0;
9745         char cmd[PATH_MAX];
9746
9747         struct option long_opts[] = {
9748         { .val = 'o',   .name = "only",         .has_arg = required_argument },
9749         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
9750         { .name = NULL } };
9751
9752         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
9753         progname = cmd;
9754         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
9755                 switch (c) {
9756                 case 'o':
9757                         rc = parse_mirror_ids(mirror_ids,
9758                                               ARRAY_SIZE(mirror_ids),
9759                                               optarg);
9760                         if (rc < 0) {
9761                                 fprintf(stderr,
9762                                         "%s: bad mirror ids '%s'.\n",
9763                                         progname, optarg);
9764                                 goto error;
9765                         }
9766                         ids_nr = rc;
9767                         if (ids_nr < 2) {
9768                                 fprintf(stderr,
9769                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
9770                                         progname);
9771                                 rc = CMD_HELP;
9772                                 goto error;
9773                         }
9774                         break;
9775                 case 'v':
9776                         verbose++;
9777                         break;
9778                 default:
9779                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
9780                                 progname, argv[optind - 1]);
9781                         rc = -EINVAL;
9782                         goto error;
9783                 }
9784         }
9785
9786         if (argc == optind) {
9787                 fprintf(stderr, "%s: no file name given.\n", progname);
9788                 rc = CMD_HELP;
9789                 goto error;
9790         }
9791
9792         if (ids_nr > 0 && argc > optind + 1) {
9793                 fprintf(stderr,
9794                         "%s: '--only' cannot be used upon multiple files.\n",
9795                         progname);
9796                 rc = CMD_HELP;
9797                 goto error;
9798
9799         }
9800
9801         if (ids_nr > 0) {
9802                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
9803                 if (rc < 0)
9804                         goto error;
9805         }
9806
9807         rc = 0;
9808         for (; optind < argc; optind++) {
9809                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
9810                                              verbose);
9811                 if (rc1 < 0)
9812                         rc = rc1;
9813         }
9814 error:
9815         return rc;
9816 }
9817
9818 /**
9819  * lfs_mirror() - Parse and execute lfs mirror commands.
9820  * @argc: The count of lfs mirror command line arguments.
9821  * @argv: Array of strings for lfs mirror command line arguments.
9822  *
9823  * This function parses lfs mirror commands and performs the
9824  * corresponding functions specified in mirror_cmdlist[].
9825  *
9826  * Return: 0 on success or an error code on failure.
9827  */
9828 static int lfs_mirror(int argc, char **argv)
9829 {
9830         char cmd[PATH_MAX];
9831         int rc = 0;
9832
9833         setlinebuf(stdout);
9834
9835         Parser_init("lfs-mirror > ", mirror_cmdlist);
9836
9837         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
9838         progname = cmd;
9839         program_invocation_short_name = cmd;
9840         if (argc > 1)
9841                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
9842         else
9843                 rc = Parser_commands();
9844
9845         return rc < 0 ? -rc : rc;
9846 }
9847
9848 static void lustre_som_swab(struct lustre_som_attrs *attrs)
9849 {
9850 #if __BYTE_ORDER == __BIG_ENDIAN
9851         __swab16s(&attrs->lsa_valid);
9852         __swab64s(&attrs->lsa_size);
9853         __swab64s(&attrs->lsa_blocks);
9854 #endif
9855 }
9856
9857 enum lfs_som_type {
9858         LFS_SOM_SIZE = 0x1,
9859         LFS_SOM_BLOCKS = 0x2,
9860         LFS_SOM_FLAGS = 0x4,
9861         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
9862                            LFS_SOM_FLAGS,
9863 };
9864
9865 static int lfs_getsom(int argc, char **argv)
9866 {
9867         const char *path;
9868         struct lustre_som_attrs *attrs;
9869         char buf[sizeof(*attrs) + 64];
9870         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
9871         int rc = 0, c;
9872
9873         while ((c = getopt(argc, argv, "sbf")) != -1) {
9874                 switch (c) {
9875                 case 's':
9876                         type = LFS_SOM_SIZE;
9877                         break;
9878                 case 'b':
9879                         type = LFS_SOM_BLOCKS;
9880                         break;
9881                 case 'f':
9882                         type = LFS_SOM_FLAGS;
9883                         break;
9884                 default:
9885                         fprintf(stderr, "%s: invalid option '%c'\n",
9886                                 progname, optopt);
9887                         return CMD_HELP;
9888                 }
9889         }
9890
9891         argc -= optind;
9892         argv += optind;
9893
9894         if (argc != 1) {
9895                 fprintf(stderr, "%s: %s\n",
9896                         progname, argc == 0 ? "miss file target" :
9897                         "input more than 2 files");
9898                 return CMD_HELP;
9899         }
9900
9901         path = argv[0];
9902         attrs = (void *)buf;
9903         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
9904         if (rc < 0) {
9905                 rc = -errno;
9906                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
9907                         argv[0], strerror(errno), errno);
9908                 return rc;
9909         }
9910
9911         lustre_som_swab(attrs);
9912
9913         switch (type) {
9914         case LFS_SOM_ATTR_ALL:
9915                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
9916                        path, attrs->lsa_size, attrs->lsa_blocks,
9917                        attrs->lsa_valid);
9918                 break;
9919         case LFS_SOM_SIZE:
9920                 printf("%llu\n", attrs->lsa_size);
9921                 break;
9922         case LFS_SOM_BLOCKS:
9923                 printf("%llu\n", attrs->lsa_blocks);
9924                 break;
9925         case LFS_SOM_FLAGS:
9926                 printf("%x\n", attrs->lsa_valid);
9927                 break;
9928         default:
9929                 fprintf(stderr, "%s: unknown option\n", progname);
9930                 return CMD_HELP;
9931         }
9932
9933         return 0;
9934 }
9935
9936 /**
9937  * lfs_mirror_list_commands() - List lfs mirror commands.
9938  * @argc: The count of command line arguments.
9939  * @argv: Array of strings for command line arguments.
9940  *
9941  * This function lists lfs mirror commands defined in mirror_cmdlist[].
9942  *
9943  * Return: 0 on success.
9944  */
9945 static int lfs_mirror_list_commands(int argc, char **argv)
9946 {
9947         char buffer[81] = "";
9948
9949         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
9950                              NULL, 0, 4);
9951
9952         return 0;
9953 }
9954
9955 static int lfs_list_commands(int argc, char **argv)
9956 {
9957         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
9958
9959         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
9960
9961         return 0;
9962 }
9963
9964 int main(int argc, char **argv)
9965 {
9966         int rc;
9967
9968         /* Ensure that liblustreapi constructor has run */
9969         if (!llapi_liblustreapi_initialized())
9970                 fprintf(stderr, "liblustreapi was not properly initialized\n");
9971
9972         setlinebuf(stdout);
9973         opterr = 0;
9974
9975         Parser_init("lfs > ", cmdlist);
9976
9977         progname = program_invocation_short_name; /* Used in error messages */
9978         if (argc > 1) {
9979                 llapi_set_command_name(argv[1]);
9980                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
9981                 llapi_clear_command_name();
9982         } else {
9983                 rc = Parser_commands();
9984         }
9985
9986         return rc < 0 ? -rc : rc;
9987 }
9988
9989 #ifdef _LUSTRE_IDL_H_
9990 /* Everything we need here should be included by lustreapi.h. */
9991 # error "lfs should not depend on lustre_idl.h"
9992 #endif /* _LUSTRE_IDL_H_ */