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
3452                 if (param->fp_time_margin == 0 ||
3453                     (*endptr && unit < param->fp_time_margin))
3454                         param->fp_time_margin = unit;
3455
3456                 t += val * unit;
3457         }
3458         if (*time < t) {
3459                 if (res != 0)
3460                         str--;
3461                 fprintf(stderr, "%s find: bad time '%s': too large\n",
3462                         progname, str);
3463                 return LONG_MAX;
3464         }
3465
3466         *set = *time - t;
3467
3468         return res;
3469 }
3470
3471 static int name2uid(unsigned int *id, const char *name)
3472 {
3473         struct passwd *passwd;
3474
3475         passwd = getpwnam(name);
3476         if (passwd == NULL)
3477                 return -ENOENT;
3478         *id = passwd->pw_uid;
3479
3480         return 0;
3481 }
3482
3483 static int name2gid(unsigned int *id, const char *name)
3484 {
3485         struct group *group;
3486
3487         group = getgrnam(name);
3488         if (group == NULL)
3489                 return -ENOENT;
3490         *id = group->gr_gid;
3491
3492         return 0;
3493 }
3494
3495 static inline int name2projid(unsigned int *id, const char *name)
3496 {
3497         return -ENOTSUP;
3498 }
3499
3500 static int uid2name(char **name, unsigned int id)
3501 {
3502         struct passwd *passwd;
3503
3504         passwd = getpwuid(id);
3505         if (passwd == NULL)
3506                 return -ENOENT;
3507         *name = passwd->pw_name;
3508
3509         return 0;
3510 }
3511
3512 static inline int gid2name(char **name, unsigned int id)
3513 {
3514         struct group *group;
3515
3516         group = getgrgid(id);
3517         if (group == NULL)
3518                 return -ENOENT;
3519         *name = group->gr_name;
3520
3521         return 0;
3522 }
3523
3524 static int name2layout(__u32 *layout, char *name)
3525 {
3526         char *ptr, *layout_name;
3527
3528         *layout = 0;
3529         for (ptr = name; ; ptr = NULL) {
3530                 layout_name = strtok(ptr, ",");
3531                 if (layout_name == NULL)
3532                         break;
3533                 if (strcmp(layout_name, "released") == 0)
3534                         *layout |= LOV_PATTERN_F_RELEASED;
3535                 else if (strcmp(layout_name, "raid0") == 0)
3536                         *layout |= LOV_PATTERN_RAID0;
3537                 else if (strcmp(layout_name, "mdt") == 0)
3538                         *layout |= LOV_PATTERN_MDT;
3539                 else
3540                         return -1;
3541         }
3542         return 0;
3543 }
3544
3545 static int lfs_find(int argc, char **argv)
3546 {
3547         int c, rc;
3548         int ret = 0;
3549         time_t t;
3550         struct find_param param = {
3551                 .fp_max_depth = -1,
3552                 .fp_quiet = 1,
3553                 .fp_time_margin = 24 * 60 * 60,
3554         };
3555         struct option long_opts[] = {
3556         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
3557         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
3558         { .val = LFS_COMP_COUNT_OPT,
3559                         .name = "comp-count",   .has_arg = required_argument },
3560         { .val = LFS_COMP_COUNT_OPT,
3561                         .name = "component-count",
3562                                                 .has_arg = required_argument },
3563         { .val = LFS_COMP_FLAGS_OPT,
3564                         .name = "comp-flags",   .has_arg = required_argument },
3565         { .val = LFS_COMP_FLAGS_OPT,
3566                         .name = "component-flags",
3567                                                 .has_arg = required_argument },
3568         { .val = LFS_COMP_START_OPT,
3569                         .name = "comp-start",   .has_arg = required_argument },
3570         { .val = LFS_COMP_START_OPT,
3571                         .name = "component-start",
3572                                                 .has_arg = required_argument },
3573         { .val = LFS_MIRROR_STATE_OPT,
3574                         .name = "mirror-state", .has_arg = required_argument },
3575         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
3576         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
3577         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
3578 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
3579         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
3580         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
3581         { .val = 'E',   .name = "component-end",
3582                                                 .has_arg = required_argument },
3583 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3584         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
3585         { .val = 'G',   .name = "group",        .has_arg = required_argument },
3586         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
3587         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
3588         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
3589 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
3590         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3591         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
3592         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
3593         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
3594         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
3595         { .val = 'n',   .name = "name",         .has_arg = required_argument },
3596         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
3597 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
3598         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
3599         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
3600         /* no short option for pool yet, can be 'p' after 2.18 */
3601         { .val = LFS_POOL_OPT,
3602                         .name = "pool",         .has_arg = required_argument },
3603         { .val = '0',   .name = "print0",       .has_arg = no_argument },
3604         { .val = 'P',   .name = "print",        .has_arg = no_argument },
3605         { .val = LFS_PROJID_OPT,
3606                         .name = "projid",       .has_arg = required_argument },
3607 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3608 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3609 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3610         { .val = 's',   .name = "size",         .has_arg = required_argument },
3611         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3612         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3613         { .val = 't',   .name = "type",         .has_arg = required_argument },
3614         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
3615         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
3616         { .val = 'U',   .name = "user",         .has_arg = required_argument },
3617 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
3618 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
3619         { .val = 'z',   .name = "lazy",         .has_arg = no_argument },
3620         { .name = NULL } };
3621         int pathstart = -1;
3622         int pathend = -1;
3623         int neg_opt = 0;
3624         time_t *xtime;
3625         int *xsign;
3626         int isoption;
3627         char *endptr;
3628
3629         time(&t);
3630
3631         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
3632         while ((c = getopt_long_only(argc, argv,
3633                         "-0A:b:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:vz",
3634                         long_opts, NULL)) >= 0) {
3635                 xtime = NULL;
3636                 xsign = NULL;
3637                 if (neg_opt)
3638                         --neg_opt;
3639                 /* '!' is part of option */
3640                 /* when getopt_long_only() finds a string which is not
3641                  * an option nor a known option argument it returns 1
3642                  * in that case if we already have found pathstart and pathend
3643                  * (i.e. we have the list of pathnames),
3644                  * the only supported value is "!"
3645                  */
3646                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
3647                 if (!isoption && pathend != -1) {
3648                         fprintf(stderr, "err: %s: filename|dirname must either "
3649                                         "precede options or follow options\n",
3650                                         argv[0]);
3651                         ret = CMD_HELP;
3652                         goto err;
3653                 }
3654                 if (!isoption && pathstart == -1)
3655                         pathstart = optind - 1;
3656                 if (isoption && pathstart != -1 && pathend == -1)
3657                         pathend = optind - 2;
3658                 switch (c) {
3659                 case 0:
3660                         /* Long options. */
3661                         break;
3662                 case 1:
3663                         /* unknown; opt is "!" or path component,
3664                          * checking done above.
3665                          */
3666                         if (strcmp(optarg, "!") == 0)
3667                                 neg_opt = 2;
3668                         break;
3669                 case 'A':
3670                         xtime = &param.fp_atime;
3671                         xsign = &param.fp_asign;
3672                         param.fp_exclude_atime = !!neg_opt;
3673                         /* no break, this falls through to 'C' for ctime */
3674                 case 'C':
3675                         if (c == 'C') {
3676                                 xtime = &param.fp_ctime;
3677                                 xsign = &param.fp_csign;
3678                                 param.fp_exclude_ctime = !!neg_opt;
3679                         }
3680                         /* no break, this falls through to 'M' for mtime */
3681                 case 'M':
3682                         if (c == 'M') {
3683                                 xtime = &param.fp_mtime;
3684                                 xsign = &param.fp_msign;
3685                                 param.fp_exclude_mtime = !!neg_opt;
3686                         }
3687                         rc = set_time(&param, &t, xtime, optarg);
3688                         if (rc == LONG_MAX) {
3689                                 ret = -1;
3690                                 goto err;
3691                         }
3692                         if (rc)
3693                                 *xsign = rc;
3694                         break;
3695                 case 'b':
3696                         if (optarg[0] == '+') {
3697                                 param.fp_blocks_sign = -1;
3698                                 optarg++;
3699                         } else if (optarg[0] == '-') {
3700                                 param.fp_blocks_sign =  1;
3701                                 optarg++;
3702                         }
3703
3704                         param.fp_blocks_units = 1024;
3705                         ret = llapi_parse_size(optarg, &param.fp_blocks,
3706                                                &param.fp_blocks_units, 0);
3707                         if (ret) {
3708                                 fprintf(stderr, "error: bad blocks '%s'\n",
3709                                         optarg);
3710                                 goto err;
3711                         }
3712                         param.fp_check_blocks = 1;
3713                         param.fp_exclude_blocks = !!neg_opt;
3714                         break;
3715                 case LFS_COMP_COUNT_OPT:
3716                         if (optarg[0] == '+') {
3717                                 param.fp_comp_count_sign = -1;
3718                                 optarg++;
3719                         } else if (optarg[0] == '-') {
3720                                 param.fp_comp_count_sign =  1;
3721                                 optarg++;
3722                         }
3723
3724                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
3725                         if (*endptr != '\0') {
3726                                 fprintf(stderr, "error: bad component count "
3727                                         "'%s'\n", optarg);
3728                                 goto err;
3729                         }
3730                         param.fp_check_comp_count = 1;
3731                         param.fp_exclude_comp_count = !!neg_opt;
3732                         break;
3733                 case LFS_COMP_FLAGS_OPT:
3734                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
3735                                             &param.fp_comp_neg_flags);
3736                         if (rc) {
3737                                 fprintf(stderr, "error: bad component flags "
3738                                         "'%s'\n", optarg);
3739                                 goto err;
3740                         }
3741                         param.fp_check_comp_flags = 1;
3742                         if (neg_opt) {
3743                                 __u32 flags = param.fp_comp_neg_flags;
3744                                 param.fp_comp_neg_flags = param.fp_comp_flags;
3745                                 param.fp_comp_flags = flags;
3746                         }
3747                         break;
3748                 case LFS_COMP_START_OPT:
3749                         if (optarg[0] == '+') {
3750                                 param.fp_comp_start_sign = -1;
3751                                 optarg++;
3752                         } else if (optarg[0] == '-') {
3753                                 param.fp_comp_start_sign =  1;
3754                                 optarg++;
3755                         }
3756
3757                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
3758                                               &param.fp_comp_start_units, 0);
3759                         if (rc) {
3760                                 fprintf(stderr, "error: bad component start "
3761                                         "'%s'\n", optarg);
3762                                 goto err;
3763                         }
3764                         param.fp_check_comp_start = 1;
3765                         param.fp_exclude_comp_start = !!neg_opt;
3766                         break;
3767                 case LFS_MIRROR_STATE_OPT:
3768                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
3769                                               &param.fp_mirror_neg_state);
3770                         if (rc) {
3771                                 fprintf(stderr,
3772                                         "error: bad mirrored file state '%s'\n",
3773                                         optarg);
3774                                 goto err;
3775                         }
3776                         param.fp_check_mirror_state = 1;
3777                         if (neg_opt) {
3778                                 __u16 state = param.fp_mirror_neg_state;
3779                                 param.fp_mirror_neg_state =
3780                                         param.fp_mirror_state;
3781                                 param.fp_mirror_state = state;
3782                         }
3783                         break;
3784                 case 'c':
3785                         if (optarg[0] == '+') {
3786                                 param.fp_stripe_count_sign = -1;
3787                                 optarg++;
3788                         } else if (optarg[0] == '-') {
3789                                 param.fp_stripe_count_sign =  1;
3790                                 optarg++;
3791                         }
3792
3793                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
3794                         if (*endptr != '\0') {
3795                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
3796                                         optarg);
3797                                 ret = -1;
3798                                 goto err;
3799                         }
3800                         param.fp_check_stripe_count = 1;
3801                         param.fp_exclude_stripe_count = !!neg_opt;
3802                         break;
3803                 case 'D':
3804                         param.fp_max_depth = strtol(optarg, 0, 0);
3805                         break;
3806                 case 'E':
3807                         if (optarg[0] == '+') {
3808                                 param.fp_comp_end_sign = -1;
3809                                 optarg++;
3810                         } else if (optarg[0] == '-') {
3811                                 param.fp_comp_end_sign =  1;
3812                                 optarg++;
3813                         }
3814
3815                         if (arg_is_eof(optarg)) {
3816                                 param.fp_comp_end = LUSTRE_EOF;
3817                                 param.fp_comp_end_units = 1;
3818                                 rc = 0;
3819                         } else {
3820                                 rc = llapi_parse_size(optarg,
3821                                                 &param.fp_comp_end,
3822                                                 &param.fp_comp_end_units, 0);
3823                         }
3824                         if (rc) {
3825                                 fprintf(stderr, "error: bad component end "
3826                                         "'%s'\n", optarg);
3827                                 goto err;
3828                         }
3829                         param.fp_check_comp_end = 1;
3830                         param.fp_exclude_comp_end = !!neg_opt;
3831                         break;
3832                 case 'g':
3833                 case 'G':
3834                         rc = name2gid(&param.fp_gid, optarg);
3835                         if (rc) {
3836                                 param.fp_gid = strtoul(optarg, &endptr, 10);
3837                                 if (*endptr != '\0') {
3838                                         fprintf(stderr, "Group/GID: %s cannot "
3839                                                 "be found.\n", optarg);
3840                                         ret = -1;
3841                                         goto err;
3842                                 }
3843                         }
3844                         param.fp_exclude_gid = !!neg_opt;
3845                         param.fp_check_gid = 1;
3846                         break;
3847                 case 'H':
3848                         param.fp_hash_type = check_hashtype(optarg);
3849                         if (param.fp_hash_type == 0) {
3850                                 fprintf(stderr, "error: bad hash_type '%s'\n",
3851                                         optarg);
3852                                 ret = -1;
3853                                 goto err;
3854                         }
3855                         param.fp_check_hash_type = 1;
3856                         param.fp_exclude_hash_type = !!neg_opt;
3857                         break;
3858                 case 'L':
3859                         ret = name2layout(&param.fp_layout, optarg);
3860                         if (ret)
3861                                 goto err;
3862                         param.fp_exclude_layout = !!neg_opt;
3863                         param.fp_check_layout = 1;
3864                         break;
3865                 case 'u':
3866                 case 'U':
3867                         rc = name2uid(&param.fp_uid, optarg);
3868                         if (rc) {
3869                                 param.fp_uid = strtoul(optarg, &endptr, 10);
3870                                 if (*endptr != '\0') {
3871                                         fprintf(stderr, "User/UID: %s cannot "
3872                                                 "be found.\n", optarg);
3873                                         ret = -1;
3874                                         goto err;
3875                                 }
3876                         }
3877                         param.fp_exclude_uid = !!neg_opt;
3878                         param.fp_check_uid = 1;
3879                         break;
3880                 case 'n':
3881                         param.fp_pattern = (char *)optarg;
3882                         param.fp_exclude_pattern = !!neg_opt;
3883                         break;
3884                 case 'N':
3885                         if (optarg[0] == '+') {
3886                                 param.fp_mirror_count_sign = -1;
3887                                 optarg++;
3888                         } else if (optarg[0] == '-') {
3889                                 param.fp_mirror_count_sign =  1;
3890                                 optarg++;
3891                         }
3892
3893                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
3894                         if (*endptr != '\0') {
3895                                 fprintf(stderr,
3896                                         "error: bad mirror count '%s'\n",
3897                                         optarg);
3898                                 goto err;
3899                         }
3900                         param.fp_check_mirror_count = 1;
3901                         param.fp_exclude_mirror_count = !!neg_opt;
3902                         break;
3903                 case 'm':
3904                 case 'i':
3905                 case 'O': {
3906                         char *buf, *token, *next, *p;
3907                         int len = 1;
3908                         void *tmp;
3909
3910                         buf = strdup(optarg);
3911                         if (buf == NULL) {
3912                                 ret = -ENOMEM;
3913                                 goto err;
3914                         }
3915
3916                         param.fp_exclude_obd = !!neg_opt;
3917
3918                         token = buf;
3919                         while (token && *token) {
3920                                 token = strchr(token, ',');
3921                                 if (token) {
3922                                         len++;
3923                                         token++;
3924                                 }
3925                         }
3926                         if (c == 'm') {
3927                                 param.fp_exclude_mdt = !!neg_opt;
3928                                 param.fp_num_alloc_mdts += len;
3929                                 tmp = realloc(param.fp_mdt_uuid,
3930                                               param.fp_num_alloc_mdts *
3931                                               sizeof(*param.fp_mdt_uuid));
3932                                 if (tmp == NULL) {
3933                                         ret = -ENOMEM;
3934                                         goto err_free;
3935                                 }
3936
3937                                 param.fp_mdt_uuid = tmp;
3938                         } else {
3939                                 param.fp_exclude_obd = !!neg_opt;
3940                                 param.fp_num_alloc_obds += len;
3941                                 tmp = realloc(param.fp_obd_uuid,
3942                                               param.fp_num_alloc_obds *
3943                                               sizeof(*param.fp_obd_uuid));
3944                                 if (tmp == NULL) {
3945                                         ret = -ENOMEM;
3946                                         goto err_free;
3947                                 }
3948
3949                                 param.fp_obd_uuid = tmp;
3950                         }
3951                         for (token = buf; token && *token; token = next) {
3952                                 struct obd_uuid *puuid;
3953                                 if (c == 'm') {
3954                                         puuid =
3955                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
3956                                 } else {
3957                                         puuid =
3958                                         &param.fp_obd_uuid[param.fp_num_obds++];
3959                                 }
3960                                 p = strchr(token, ',');
3961                                 next = 0;
3962                                 if (p) {
3963                                         *p = 0;
3964                                         next = p+1;
3965                                 }
3966
3967                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
3968                                         ret = -E2BIG;
3969                                         goto err_free;
3970                                 }
3971
3972                                 strncpy(puuid->uuid, token,
3973                                         sizeof(puuid->uuid));
3974                         }
3975 err_free:
3976                         if (buf)
3977                                 free(buf);
3978                         break;
3979                 }
3980 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
3981                 case 'p':
3982 #endif
3983                 case LFS_POOL_OPT:
3984                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
3985                                 fprintf(stderr,
3986                                         "Pool name %s is too long (max %d)\n",
3987                                         optarg, LOV_MAXPOOLNAME);
3988                                 ret = -1;
3989                                 goto err;
3990                         }
3991                         /*
3992                          * We do check for empty pool because empty pool
3993                          * is used to find V1 LOV attributes
3994                          */
3995                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
3996                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
3997                         param.fp_exclude_pool = !!neg_opt;
3998                         param.fp_check_pool = 1;
3999                         break;
4000 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
4001                 case 'p': /* want this for --pool, to match getstripe/find */
4002                         fprintf(stderr,
4003                                 "warning: -p deprecated, use --print0 or -0\n");
4004 #endif
4005                 case '0':
4006                         param.fp_zero_end = 1;
4007                         break;
4008                 case 'P': /* we always print, this option is a no-op */
4009                         break;
4010                 case LFS_PROJID_OPT:
4011                         rc = name2projid(&param.fp_projid, optarg);
4012                         if (rc) {
4013                                 param.fp_projid = strtoul(optarg, &endptr, 10);
4014                                 if (*endptr != '\0') {
4015                                         fprintf(stderr,
4016                                                 "Invalid project ID: %s",
4017                                                 optarg);
4018                                         ret = -1;
4019                                         goto err;
4020                                 }
4021                         }
4022                         param.fp_exclude_projid = !!neg_opt;
4023                         param.fp_check_projid = 1;
4024                         break;
4025                 case 's':
4026                         if (optarg[0] == '+') {
4027                                 param.fp_size_sign = -1;
4028                                 optarg++;
4029                         } else if (optarg[0] == '-') {
4030                                 param.fp_size_sign =  1;
4031                                 optarg++;
4032                         }
4033
4034                         ret = llapi_parse_size(optarg, &param.fp_size,
4035                                                &param.fp_size_units, 0);
4036                         if (ret) {
4037                                 fprintf(stderr, "error: bad file size '%s'\n",
4038                                         optarg);
4039                                 goto err;
4040                         }
4041                         param.fp_check_size = 1;
4042                         param.fp_exclude_size = !!neg_opt;
4043                         break;
4044                 case 'S':
4045                         if (optarg[0] == '+') {
4046                                 param.fp_stripe_size_sign = -1;
4047                                 optarg++;
4048                         } else if (optarg[0] == '-') {
4049                                 param.fp_stripe_size_sign =  1;
4050                                 optarg++;
4051                         }
4052
4053                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
4054                                                &param.fp_stripe_size_units, 0);
4055                         if (ret) {
4056                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
4057                                         optarg);
4058                                 goto err;
4059                         }
4060                         param.fp_check_stripe_size = 1;
4061                         param.fp_exclude_stripe_size = !!neg_opt;
4062                         break;
4063                 case 't':
4064                         param.fp_exclude_type = !!neg_opt;
4065                         switch (optarg[0]) {
4066                         case 'b':
4067                                 param.fp_type = S_IFBLK;
4068                                 break;
4069                         case 'c':
4070                                 param.fp_type = S_IFCHR;
4071                                 break;
4072                         case 'd':
4073                                 param.fp_type = S_IFDIR;
4074                                 break;
4075                         case 'f':
4076                                 param.fp_type = S_IFREG;
4077                                 break;
4078                         case 'l':
4079                                 param.fp_type = S_IFLNK;
4080                                 break;
4081                         case 'p':
4082                                 param.fp_type = S_IFIFO;
4083                                 break;
4084                         case 's':
4085                                 param.fp_type = S_IFSOCK;
4086                                 break;
4087                         default:
4088                                 fprintf(stderr, "error: %s: bad type '%s'\n",
4089                                         argv[0], optarg);
4090                                 ret = CMD_HELP;
4091                                 goto err;
4092                         };
4093                         break;
4094                 case 'T':
4095                         if (optarg[0] == '+') {
4096                                 param.fp_mdt_count_sign = -1;
4097                                 optarg++;
4098                         } else if (optarg[0] == '-') {
4099                                 param.fp_mdt_count_sign =  1;
4100                                 optarg++;
4101                         }
4102
4103                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
4104                         if (*endptr != '\0') {
4105                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
4106                                         optarg);
4107                                 ret = -1;
4108                                 goto err;
4109                         }
4110                         param.fp_check_mdt_count = 1;
4111                         param.fp_exclude_mdt_count = !!neg_opt;
4112                         break;
4113                 case 'z':
4114                         param.fp_lazy = 1;
4115                         break;
4116                 default:
4117                         ret = CMD_HELP;
4118                         goto err;
4119                 };
4120         }
4121
4122         if (pathstart == -1) {
4123                 fprintf(stderr, "error: %s: no filename|pathname\n",
4124                         argv[0]);
4125                 ret = CMD_HELP;
4126                 goto err;
4127         } else if (pathend == -1) {
4128                 /* no options */
4129                 pathend = argc;
4130         }
4131
4132         do {
4133                 rc = llapi_find(argv[pathstart], &param);
4134                 if (rc != 0 && ret == 0)
4135                         ret = rc;
4136         } while (++pathstart < pathend);
4137
4138         if (ret)
4139                 fprintf(stderr, "error: %s failed for %s.\n",
4140                         argv[0], argv[optind - 1]);
4141 err:
4142         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
4143                 free(param.fp_obd_uuid);
4144
4145         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
4146                 free(param.fp_mdt_uuid);
4147
4148         return ret;
4149 }
4150
4151 static int lfs_getstripe_internal(int argc, char **argv,
4152                                   struct find_param *param)
4153 {
4154         struct option long_opts[] = {
4155 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
4156 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
4157         { .val = LFS_COMP_COUNT_OPT,
4158                         .name = "comp-count",   .has_arg = no_argument },
4159         { .val = LFS_COMP_COUNT_OPT,
4160                 .name = "component-count",      .has_arg = no_argument },
4161         { .val = LFS_COMP_FLAGS_OPT,
4162                         .name = "comp-flags",   .has_arg = optional_argument },
4163         { .val = LFS_COMP_FLAGS_OPT,
4164                 .name = "component-flags",      .has_arg = optional_argument },
4165         { .val = LFS_COMP_START_OPT,
4166                         .name = "comp-start",   .has_arg = optional_argument },
4167         { .val = LFS_COMP_START_OPT,
4168                 .name = "component-start",      .has_arg = optional_argument },
4169         { .val = LFS_MIRROR_INDEX_OPT,
4170                 .name = "mirror-index",         .has_arg = required_argument },
4171         { .val = LFS_MIRROR_ID_OPT,
4172                 .name = "mirror-id",            .has_arg = required_argument },
4173         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
4174         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
4175 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
4176         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
4177         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4178         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
4179         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
4180         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
4181         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
4182 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
4183 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
4184         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
4185         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
4186         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
4187         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
4188         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
4189         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
4190         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4191         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
4192 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
4193 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
4194         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
4195         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4196         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4197         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
4198 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
4199         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
4200         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4201         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
4202         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
4203         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
4204 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
4205 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
4206 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
4207 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
4208         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
4209         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4210         { .name = NULL } };
4211         int c, rc;
4212         int neg_opt = 0;
4213         int pathstart = -1, pathend = -1;
4214         int isoption;
4215         char *end, *tmp;
4216
4217         while ((c = getopt_long(argc, argv,
4218                         "-cdDE::FghiI::LmMNoO:pqrRsSvy",
4219                         long_opts, NULL)) != -1) {
4220                 if (neg_opt)
4221                         --neg_opt;
4222
4223                 /* '!' is part of option */
4224                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4225                 if (!isoption && pathend != -1) {
4226                         fprintf(stderr,
4227                                 "error: %s: filename|dirname must either precede options or follow options\n",
4228                                 argv[0]);
4229                         return CMD_HELP;
4230                 }
4231                 if (!isoption && pathstart == -1)
4232                         pathstart = optind - 1;
4233                 if (isoption && pathstart != -1 && pathend == -1)
4234                         pathend = optind - 2;
4235
4236                 switch (c) {
4237                 case 1:
4238                         /* unknown: opt is "!" */
4239                         if (strcmp(optarg, "!") == 0)
4240                                 neg_opt = 2;
4241                         break;
4242                 case 'c':
4243                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4244                                 param->fp_verbose |= VERBOSE_COUNT;
4245                                 param->fp_max_depth = 0;
4246                         }
4247                         break;
4248                 case LFS_COMP_COUNT_OPT:
4249                         param->fp_verbose |= VERBOSE_COMP_COUNT;
4250                         param->fp_max_depth = 0;
4251                         break;
4252                 case LFS_COMP_FLAGS_OPT:
4253                         if (optarg != NULL) {
4254                                 rc = comp_str2flags(optarg,
4255                                                     &param->fp_comp_flags,
4256                                                     &param->fp_comp_neg_flags);
4257                                 if (rc != 0) {
4258                                         fprintf(stderr, "error: %s bad "
4259                                                 "component flags '%s'.\n",
4260                                                 argv[0], optarg);
4261                                         return CMD_HELP;
4262                                 }
4263                                 param->fp_check_comp_flags = 1;
4264                         } else {
4265                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
4266                                 param->fp_max_depth = 0;
4267                         }
4268                         break;
4269                 case LFS_COMP_START_OPT:
4270                         if (optarg != NULL) {
4271                                 tmp = optarg;
4272                                 if (tmp[0] == '+') {
4273                                         param->fp_comp_start_sign = -1;
4274                                         tmp++;
4275                                 } else if (tmp[0] == '-') {
4276                                         param->fp_comp_start_sign = 1;
4277                                         tmp++;
4278                                 }
4279                                 rc = llapi_parse_size(tmp,
4280                                                 &param->fp_comp_start,
4281                                                 &param->fp_comp_start_units, 0);
4282                                 if (rc != 0) {
4283                                         fprintf(stderr, "error: %s bad "
4284                                                 "component start '%s'.\n",
4285                                                 argv[0], tmp);
4286                                         return CMD_HELP;
4287                                 } else {
4288                                         param->fp_check_comp_start = 1;
4289                                 }
4290                         } else {
4291                                 param->fp_verbose |= VERBOSE_COMP_START;
4292                                 param->fp_max_depth = 0;
4293                         }
4294                         break;
4295                 case LFS_MIRROR_INDEX_OPT:
4296                         if (optarg[0] == '+') {
4297                                 param->fp_mirror_index_sign = -1;
4298                                 optarg++;
4299                         } else if (optarg[0] == '-') {
4300                                 param->fp_mirror_index_sign = 1;
4301                                 optarg++;
4302                         }
4303
4304                         param->fp_mirror_index = strtoul(optarg, &end, 0);
4305                         if (*end != '\0' || (param->fp_mirror_index == 0 &&
4306                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
4307                                 fprintf(stderr,
4308                                         "%s %s: invalid mirror index '%s'\n",
4309                                         progname, argv[0], optarg);
4310                                 return CMD_HELP;
4311                         }
4312                         if (param->fp_mirror_id != 0) {
4313                                 fprintf(stderr,
4314                                         "%s %s: can't specify both mirror index and mirror ID\n",
4315                                         progname, argv[0]);
4316                                 return CMD_HELP;
4317                         }
4318                         param->fp_check_mirror_index = 1;
4319                         param->fp_exclude_mirror_index = !!neg_opt;
4320                         break;
4321                 case LFS_MIRROR_ID_OPT:
4322                         if (optarg[0] == '+') {
4323                                 param->fp_mirror_id_sign = -1;
4324                                 optarg++;
4325                         } else if (optarg[0] == '-') {
4326                                 param->fp_mirror_id_sign = 1;
4327                                 optarg++;
4328                         }
4329
4330                         param->fp_mirror_id = strtoul(optarg, &end, 0);
4331                         if (*end != '\0' || (param->fp_mirror_id == 0 &&
4332                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
4333                                 fprintf(stderr,
4334                                         "%s %s: invalid mirror ID '%s'\n",
4335                                         progname, argv[0], optarg);
4336                                 return CMD_HELP;
4337                         }
4338                         if (param->fp_mirror_index != 0) {
4339                                 fprintf(stderr,
4340                                         "%s %s: can't specify both mirror index and mirror ID\n",
4341                                         progname, argv[0]);
4342                                 return CMD_HELP;
4343                         }
4344                         param->fp_check_mirror_id = 1;
4345                         param->fp_exclude_mirror_id = !!neg_opt;
4346                         break;
4347                 case 'd':
4348                         param->fp_max_depth = 0;
4349                         break;
4350                 case 'D':
4351                         param->fp_get_default_lmv = 1;
4352                         break;
4353                 case 'E':
4354                         if (optarg != NULL) {
4355                                 tmp = optarg;
4356                                 if (tmp[0] == '+') {
4357                                         param->fp_comp_end_sign = -1;
4358                                         tmp++;
4359                                 } else if (tmp[0] == '-') {
4360                                         param->fp_comp_end_sign = 1;
4361                                         tmp++;
4362                                 }
4363
4364                                 if (arg_is_eof(tmp)) {
4365                                         param->fp_comp_end = LUSTRE_EOF;
4366                                         param->fp_comp_end_units = 1;
4367                                         rc = 0;
4368                                 } else {
4369                                         rc = llapi_parse_size(tmp,
4370                                                 &param->fp_comp_end,
4371                                                 &param->fp_comp_end_units, 0);
4372                                 }
4373                                 if (rc != 0) {
4374                                         fprintf(stderr, "error: %s bad "
4375                                                 "component end '%s'.\n",
4376                                                 argv[0], tmp);
4377                                         return CMD_HELP;
4378                                 }
4379                                 param->fp_check_comp_end = 1;
4380                         } else {
4381                                 param->fp_verbose |= VERBOSE_COMP_END;
4382                                 param->fp_max_depth = 0;
4383                         }
4384                         break;
4385                 case 'F':
4386                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4387                                 param->fp_verbose |= VERBOSE_DFID;
4388                                 param->fp_max_depth = 0;
4389                         }
4390                         break;
4391                 case 'g':
4392                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4393                                 param->fp_verbose |= VERBOSE_GENERATION;
4394                                 param->fp_max_depth = 0;
4395                         }
4396                         break;
4397                 case 'i':
4398                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4399                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
4400                                 param->fp_max_depth = 0;
4401                         }
4402                         break;
4403                 case 'I':
4404                         if (optarg != NULL) {
4405                                 param->fp_comp_id = strtoul(optarg, &end, 0);
4406                                 if (*end != '\0' || param->fp_comp_id == 0 ||
4407                                     param->fp_comp_id > LCME_ID_MAX) {
4408                                         fprintf(stderr, "error: %s bad "
4409                                                 "component id '%s'\n",
4410                                                 argv[0], optarg);
4411                                         return CMD_HELP;
4412                                 } else {
4413                                         param->fp_check_comp_id = 1;
4414                                 }
4415                         } else {
4416                                 param->fp_max_depth = 0;
4417                                 param->fp_verbose |= VERBOSE_COMP_ID;
4418                         }
4419                         break;
4420                 case 'L':
4421                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4422                                 param->fp_verbose |= VERBOSE_PATTERN;
4423                                 param->fp_max_depth = 0;
4424                         }
4425                         break;
4426 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4427                 case 'M':
4428                         fprintf(stderr, "warning: '-M' deprecated"
4429                                 ", use '--mdt-index' or '-m' instead\n");
4430 #endif
4431                 case 'm':
4432                         if (!(param->fp_verbose & VERBOSE_DETAIL))
4433                                 param->fp_max_depth = 0;
4434                         param->fp_verbose |= VERBOSE_MDTINDEX;
4435                         break;
4436                 case 'N':
4437                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4438                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
4439                                 param->fp_max_depth = 0;
4440                         }
4441                         break;
4442                 case 'O':
4443                         if (param->fp_obd_uuid) {
4444                                 fprintf(stderr,
4445                                         "error: %s: only one obduuid allowed",
4446                                         argv[0]);
4447                                 return CMD_HELP;
4448                         }
4449                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
4450                         break;
4451                 case 'p':
4452                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4453                                 param->fp_verbose |= VERBOSE_POOL;
4454                                 param->fp_max_depth = 0;
4455                         }
4456                         break;
4457                 case 'q':
4458                         param->fp_quiet++;
4459                         break;
4460                 case 'r':
4461                         param->fp_recursive = 1;
4462                         break;
4463                 case 'R':
4464                         param->fp_raw = 1;
4465                         break;
4466                 case 'S':
4467                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
4468                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
4469                                 param->fp_max_depth = 0;
4470                         }
4471                         break;
4472                 case 'v':
4473                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
4474                         break;
4475                 case 'y':
4476                         param->fp_yaml = 1;
4477                         break;
4478                 default:
4479                         return CMD_HELP;
4480                 }
4481         }
4482
4483         if (pathstart == -1) {
4484                 fprintf(stderr, "error: %s: no filename|pathname\n",
4485                                 argv[0]);
4486                 return CMD_HELP;
4487         } else if (pathend == -1) {
4488                 /* no options */
4489                 pathend = argc;
4490         }
4491
4492         if (pathend > argc)
4493                 return CMD_HELP;
4494
4495         if (param->fp_recursive)
4496                 param->fp_max_depth = -1;
4497         else if (param->fp_verbose & VERBOSE_DETAIL)
4498                 param->fp_max_depth = 1;
4499
4500         if (!param->fp_verbose)
4501                 param->fp_verbose = VERBOSE_DEFAULT;
4502         if (param->fp_quiet)
4503                 param->fp_verbose = VERBOSE_OBJID;
4504
4505         do {
4506                 rc = llapi_getstripe(argv[pathstart], param);
4507         } while (++pathstart < pathend && !rc);
4508
4509         if (rc)
4510                 fprintf(stderr, "error: %s failed for %s.\n",
4511                         argv[0], argv[optind - 1]);
4512         return rc;
4513 }
4514
4515 static int lfs_tgts(int argc, char **argv)
4516 {
4517         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
4518         struct find_param param;
4519         int index = 0, rc=0;
4520
4521         if (argc > 2)
4522                 return CMD_HELP;
4523
4524         if (argc == 2 && !realpath(argv[1], path)) {
4525                 rc = -errno;
4526                 fprintf(stderr, "error: invalid path '%s': %s\n",
4527                         argv[1], strerror(-rc));
4528                 return rc;
4529         }
4530
4531         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
4532                 /* Check if we have a mount point */
4533                 if (mntdir[0] == '\0')
4534                         continue;
4535
4536                 memset(&param, 0, sizeof(param));
4537                 if (!strcmp(argv[0], "mdts"))
4538                         param.fp_get_lmv = 1;
4539
4540                 rc = llapi_ostlist(mntdir, &param);
4541                 if (rc) {
4542                         fprintf(stderr, "error: %s: failed on %s\n",
4543                                 argv[0], mntdir);
4544                 }
4545                 if (path[0] != '\0')
4546                         break;
4547                 memset(mntdir, 0, PATH_MAX);
4548         }
4549
4550         return rc;
4551 }
4552
4553 static int lfs_getstripe(int argc, char **argv)
4554 {
4555         struct find_param param = { 0 };
4556
4557         param.fp_max_depth = 1;
4558         return lfs_getstripe_internal(argc, argv, &param);
4559 }
4560
4561 /* functions */
4562 static int lfs_getdirstripe(int argc, char **argv)
4563 {
4564         struct find_param param = { 0 };
4565         struct option long_opts[] = {
4566         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
4567         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4568         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
4569         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
4570         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4571         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4572         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4573         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
4574         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4575         { .name = NULL } };
4576         int c, rc;
4577
4578         param.fp_get_lmv = 1;
4579
4580         while ((c = getopt_long(argc, argv,
4581                                 "cDHimO:rtTy", long_opts, NULL)) != -1)
4582         {
4583                 switch (c) {
4584                 case 'c':
4585                 case 'T':
4586                         param.fp_verbose |= VERBOSE_COUNT;
4587                         break;
4588                 case 'D':
4589                         param.fp_get_default_lmv = 1;
4590                         break;
4591                 case 'i':
4592                 case 'm':
4593                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
4594                         break;
4595 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
4596                 case 't':
4597                         fprintf(stderr, "warning: '-t' deprecated, "
4598                                 "use '--mdt-hash' or '-H' instead\n");
4599 #endif
4600                 case 'H':
4601                         param.fp_verbose |= VERBOSE_HASH_TYPE;
4602                         break;
4603                 case 'O':
4604                         if (param.fp_obd_uuid) {
4605                                 fprintf(stderr,
4606                                         "error: %s: only one obduuid allowed",
4607                                         argv[0]);
4608                                 return CMD_HELP;
4609                         }
4610                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
4611                         break;
4612                 case 'r':
4613                         param.fp_recursive = 1;
4614                         break;
4615                 case 'y':
4616                         param.fp_yaml = 1;
4617                         break;
4618                 default:
4619                         return CMD_HELP;
4620                 }
4621         }
4622
4623         if (optind >= argc)
4624                 return CMD_HELP;
4625
4626         if (param.fp_recursive)
4627                 param.fp_max_depth = -1;
4628
4629         if (!param.fp_verbose)
4630                 param.fp_verbose = VERBOSE_DEFAULT;
4631
4632         do {
4633                 rc = llapi_getstripe(argv[optind], &param);
4634         } while (++optind < argc && !rc);
4635
4636         if (rc)
4637                 fprintf(stderr, "error: %s failed for %s.\n",
4638                         argv[0], argv[optind - 1]);
4639         return rc;
4640 }
4641
4642 enum mntdf_flags {
4643         MNTDF_INODES    = 0x0001,
4644         MNTDF_COOKED    = 0x0002,
4645         MNTDF_LAZY      = 0x0004,
4646         MNTDF_VERBOSE   = 0x0008,
4647         MNTDF_SHOW      = 0x0010,
4648 };
4649
4650 #define COOK(value)                                             \
4651 ({                                                              \
4652         int radix = 0;                                          \
4653         while (value > 1024) {                                  \
4654                 value /= 1024;                                  \
4655                 radix++;                                        \
4656         }                                                       \
4657         radix;                                                  \
4658 })
4659 #define UUF     "%-20s"
4660 #define CSF     "%11s"
4661 #define CDF     "%11llu"
4662 #define HDF     "%8.1f%c"
4663 #define RSF     "%4s"
4664 #define RDF     "%3d%%"
4665
4666 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
4667 {
4668         double avail, used, ratio = 0;
4669
4670         if (inodes) {
4671                 avail = st->os_ffree;
4672                 used = st->os_files - st->os_ffree;
4673         } else {
4674                 avail = st->os_bavail;
4675                 used = st->os_blocks - st->os_bfree;
4676         }
4677         if (avail + used > 0)
4678                 ratio = used / (used + avail) * 100;
4679
4680         /* Round up to match df(1) usage percentage */
4681         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
4682 }
4683
4684 static int showdf(char *mntdir, struct obd_statfs *stat,
4685                   char *uuid, enum mntdf_flags flags,
4686                   char *type, int index, int rc)
4687 {
4688         long long avail, used, total;
4689         int ratio = 0;
4690         char *suffix = "KMGTPEZY";
4691         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
4692         char tbuf[3 * sizeof(__u64)];
4693         char ubuf[3 * sizeof(__u64)];
4694         char abuf[3 * sizeof(__u64)];
4695         char rbuf[3 * sizeof(__u64)];
4696
4697         if (!uuid || !stat)
4698                 return -EINVAL;
4699
4700         switch (rc) {
4701         case 0:
4702                 if (flags & MNTDF_INODES) {
4703                         avail = stat->os_ffree;
4704                         used = stat->os_files - stat->os_ffree;
4705                         total = stat->os_files;
4706                 } else {
4707                         int shift = flags & MNTDF_COOKED ? 0 : 10;
4708
4709                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
4710                         used  = ((stat->os_blocks - stat->os_bfree) *
4711                                  stat->os_bsize) >> shift;
4712                         total = (stat->os_blocks * stat->os_bsize) >> shift;
4713                 }
4714
4715                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
4716
4717                 if (flags & MNTDF_COOKED) {
4718                         int i;
4719                         double cook_val;
4720
4721                         cook_val = (double)total;
4722                         i = COOK(cook_val);
4723                         if (i > 0)
4724                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
4725                                          suffix[i - 1]);
4726                         else
4727                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
4728
4729                         cook_val = (double)used;
4730                         i = COOK(cook_val);
4731                         if (i > 0)
4732                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
4733                                          suffix[i - 1]);
4734                         else
4735                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
4736
4737                         cook_val = (double)avail;
4738                         i = COOK(cook_val);
4739                         if (i > 0)
4740                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
4741                                          suffix[i - 1]);
4742                         else
4743                                 snprintf(abuf, sizeof(abuf), CDF, avail);
4744                 } else {
4745                         snprintf(tbuf, sizeof(tbuf), CDF, total);
4746                         snprintf(ubuf, sizeof(tbuf), CDF, used);
4747                         snprintf(abuf, sizeof(tbuf), CDF, avail);
4748                 }
4749
4750                 sprintf(rbuf, RDF, ratio);
4751                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
4752                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
4753                 if (type)
4754                         printf("[%s:%d]", type, index);
4755
4756                 if (stat->os_state) {
4757                         /*
4758                          * Each character represents the matching
4759                          * OS_STATE_* bit.
4760                          */
4761                         const char state_names[] = "DRSI";
4762                         __u32      state;
4763                         __u32      i;
4764
4765                         printf(" ");
4766                         for (i = 0, state = stat->os_state;
4767                              state && i < sizeof(state_names); i++) {
4768                                 if (!(state & (1 << i)))
4769                                         continue;
4770                                 printf("%c", state_names[i]);
4771                                 state ^= 1 << i;
4772                         }
4773                 }
4774
4775                 printf("\n");
4776                 break;
4777         case -ENODATA:
4778                 printf(UUF": inactive device\n", uuid);
4779                 break;
4780         default:
4781                 printf(UUF": %s\n", uuid, strerror(-rc));
4782                 break;
4783         }
4784
4785         return 0;
4786 }
4787
4788 struct ll_stat_type {
4789         int   st_op;
4790         char *st_name;
4791 };
4792
4793 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
4794
4795 struct ll_statfs_data {
4796         int                     sd_index;
4797         struct obd_statfs       sd_st;
4798 };
4799
4800 struct ll_statfs_buf {
4801         int                     sb_count;
4802         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
4803 };
4804
4805 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
4806                  int ops, struct ll_statfs_buf *lsb)
4807 {
4808         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
4809         struct obd_uuid uuid_buf;
4810         char *poolname = NULL;
4811         struct ll_stat_type types[] = {
4812                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
4813                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
4814                 { .st_name = NULL } };
4815         struct ll_stat_type *tp;
4816         __u64 ost_ffree = 0;
4817         __u32 index;
4818         __u32 type;
4819         int fd;
4820         int rc = 0;
4821         int rc2;
4822
4823         if (pool) {
4824                 poolname = strchr(pool, '.');
4825                 if (poolname != NULL) {
4826                         if (strncmp(fsname, pool, strlen(fsname))) {
4827                                 fprintf(stderr, "filesystem name incorrect\n");
4828                                 return -ENODEV;
4829                         }
4830                         poolname++;
4831                 } else
4832                         poolname = pool;
4833         }
4834
4835         fd = open(mntdir, O_RDONLY);
4836         if (fd < 0) {
4837                 rc = -errno;
4838                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
4839                         strerror(errno));
4840                 return rc;
4841         }
4842
4843         if (flags & MNTDF_SHOW) {
4844                 if (flags & MNTDF_INODES)
4845                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4846                                "UUID", "Inodes", "IUsed", "IFree",
4847                                "IUse%", "Mounted on");
4848                 else
4849                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
4850                                "UUID",
4851                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
4852                                "Used", "Available", "Use%", "Mounted on");
4853         }
4854
4855         for (tp = types; tp->st_name != NULL; tp++) {
4856                 bool have_ost = false;
4857
4858                 if (!(tp->st_op & ops))
4859                         continue;
4860
4861                 for (index = 0; ; index++) {
4862                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
4863                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
4864                         type = flags & MNTDF_LAZY ?
4865                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
4866                         rc2 = llapi_obd_fstatfs(fd, type, index,
4867                                                &stat_buf, &uuid_buf);
4868                         if (rc2 == -ENODEV)
4869                                 break;
4870                         if (rc2 == -EAGAIN)
4871                                 continue;
4872                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
4873                                 if (!(flags & MNTDF_VERBOSE))
4874                                         continue;
4875                         } else if (rc2 < 0 && rc == 0) {
4876                                 rc = rc2;
4877                         }
4878
4879                         /* If we have OSTs then don't report MDT block counts.
4880                          * For MDT-only filesystems the expectation is that all
4881                          * layouts have a DoM component.  For filesystems with
4882                          * OSTs, files are not necessarily going to store data
4883                          * on MDTs, and MDT space is limited to a fraction of
4884                          * OST space, so don't include it in the summary.
4885                          */
4886                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
4887                                 have_ost = true;
4888                                 sum.os_blocks = 0;
4889                                 sum.os_bfree = 0;
4890                                 sum.os_bavail = 0;
4891                         }
4892
4893                         if (poolname && tp->st_op == LL_STATFS_LOV &&
4894                             llapi_search_ost(fsname, poolname,
4895                                              obd_uuid2str(&uuid_buf)) != 1)
4896                                 continue;
4897
4898                         /* the llapi_obd_statfs() call may have returned with
4899                          * an error, but if it filled in uuid_buf we will at
4900                          * lease use that to print out a message for that OBD.
4901                          * If we didn't get anything in the uuid_buf, then fill
4902                          * it in so that we can print an error message. */
4903                         if (uuid_buf.uuid[0] == '\0')
4904                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
4905                                          "%s%04x", tp->st_name, index);
4906                         if (!rc && lsb) {
4907                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
4908                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
4909                                 lsb->sb_count++;
4910                         }
4911                         if (flags & MNTDF_SHOW)
4912                                 showdf(mntdir, &stat_buf,
4913                                        obd_uuid2str(&uuid_buf), flags,
4914                                        tp->st_name, index, rc2);
4915
4916                         if (rc2)
4917                                 continue;
4918
4919                         if (tp->st_op == LL_STATFS_LMV) {
4920                                 sum.os_ffree += stat_buf.os_ffree;
4921                                 sum.os_files += stat_buf.os_files;
4922                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
4923                                 ost_ffree += stat_buf.os_ffree;
4924                         }
4925                         sum.os_blocks += stat_buf.os_blocks *
4926                                          stat_buf.os_bsize;
4927                         sum.os_bfree  += stat_buf.os_bfree *
4928                                          stat_buf.os_bsize;
4929                         sum.os_bavail += stat_buf.os_bavail *
4930                                          stat_buf.os_bsize;
4931                 }
4932         }
4933
4934         close(fd);
4935
4936         /* If we don't have as many objects free on the OST as inodes
4937          * on the MDS, we reduce the total number of inodes to
4938          * compensate, so that the "inodes in use" number is correct.
4939          * Matches ll_statfs_internal() so the results are consistent. */
4940         if (ost_ffree < sum.os_ffree) {
4941                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
4942                 sum.os_ffree = ost_ffree;
4943         }
4944         if (flags & MNTDF_SHOW) {
4945                 printf("\n");
4946                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
4947                 printf("\n");
4948         }
4949
4950         return rc;
4951 }
4952
4953 static int ll_statfs_data_comp(const void *sd1, const void *sd2)
4954 {
4955         const struct obd_statfs *st1 = &((const struct ll_statfs_data *)sd1)->
4956                                                 sd_st;
4957         const struct obd_statfs *st2 = &((const struct ll_statfs_data *)sd2)->
4958                                                 sd_st;
4959         int r1 = obd_statfs_ratio(st1, false);
4960         int r2 = obd_statfs_ratio(st2, false);
4961         int64_t result = r1 - r2;
4962
4963         /* if both space usage are above 90, compare free inodes */
4964         if (r1 > 90 && r2 > 90)
4965                 result = st2->os_ffree - st1->os_ffree;
4966
4967         if (result < 0)
4968                 return -1;
4969         else if (result == 0)
4970                 return 0;
4971         else
4972                 return 1;
4973 }
4974
4975 /* functions */
4976 static int lfs_setdirstripe(int argc, char **argv)
4977 {
4978         char                    *dname;
4979         int                     result;
4980         struct lfs_setstripe_args        lsa = { 0 };
4981         struct llapi_stripe_param       *param = NULL;
4982         __u32                   mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
4983         char                    *end;
4984         int                     c;
4985         char                    *mode_opt = NULL;
4986         bool                    default_stripe = false;
4987         mode_t                  mode = S_IRWXU | S_IRWXG | S_IRWXO;
4988         mode_t                  previous_mode = 0;
4989         bool                    delete = false;
4990         struct ll_statfs_buf    *lsb = NULL;
4991         char                    mntdir[PATH_MAX] = "";
4992         bool                    auto_distributed = false;
4993
4994         struct option long_opts[] = {
4995         { .val = 'c',   .name = "count",        .has_arg = required_argument },
4996         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
4997         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
4998         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4999         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
5000         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
5001 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
5002         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
5003         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
5004 #else
5005         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5006         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5007 #endif
5008 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5009         { .val = 'i',   .name = "index",        .has_arg = required_argument },
5010 #endif
5011         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
5012 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5013         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
5014 #endif
5015         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
5016 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
5017         { .name = NULL } };
5018
5019         setstripe_args_init(&lsa);
5020
5021         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:", long_opts,
5022                                 NULL)) >= 0) {
5023                 switch (c) {
5024                 case 0:
5025                         /* Long options. */
5026                         break;
5027                 case 'c':
5028                 case 'T':
5029                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
5030                         if (*end != '\0') {
5031                                 fprintf(stderr,
5032                                         "%s %s: invalid stripe count '%s'\n",
5033                                         progname, argv[0], optarg);
5034                                 return CMD_HELP;
5035                         }
5036                         break;
5037                 case 'd':
5038                         delete = true;
5039                         default_stripe = true;
5040                         break;
5041                 case 'D':
5042                         default_stripe = true;
5043                         break;
5044 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5045                 case 't':
5046                         fprintf(stderr, "warning: '--hash-type' and '-t' "
5047                               "deprecated, use '--mdt-hash' or '-H' instead\n");
5048 #endif
5049                 case 'H':
5050                         lsa.lsa_pattern = check_hashtype(optarg);
5051                         if (lsa.lsa_pattern == 0) {
5052                                 fprintf(stderr,
5053                                         "%s %s: bad stripe hash type '%s'\n",
5054                                         progname, argv[0], optarg);
5055                                 return CMD_HELP;
5056                         }
5057                         break;
5058                 case 'i':
5059 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
5060                 case 'm':
5061 #endif
5062 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5063                         if (strcmp(argv[optind - 1], "--index") == 0)
5064                                 fprintf(stderr,
5065                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
5066                                         progname, argv[0]);
5067 #endif
5068                         lsa.lsa_nr_tgts = parse_targets(mdts,
5069                                                 sizeof(mdts) / sizeof(__u32),
5070                                                 lsa.lsa_nr_tgts, optarg);
5071                         if (lsa.lsa_nr_tgts < 0) {
5072                                 fprintf(stderr,
5073                                         "%s %s: invalid MDT target(s) '%s'\n",
5074                                         progname, argv[0], optarg);
5075                                 return CMD_HELP;
5076                         }
5077
5078                         lsa.lsa_tgts = mdts;
5079                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5080                                 lsa.lsa_stripe_off = mdts[0];
5081                         break;
5082 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
5083                 case 'm':
5084                         fprintf(stderr, "warning: '-m' is deprecated, "
5085                                 "use '--mode' or '-o' instead\n");
5086 #endif
5087                 case 'o':
5088                         mode_opt = optarg;
5089                         break;
5090                 default:
5091                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5092                                 progname, argv[0], argv[optind - 1]);
5093                         return CMD_HELP;
5094                 }
5095         }
5096
5097         if (optind == argc) {
5098                 fprintf(stderr, "%s %s: DIR must be specified\n",
5099                         progname, argv[0]);
5100                 return CMD_HELP;
5101         }
5102
5103         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
5104             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT) {
5105                 fprintf(stderr,
5106                         "%s %s: stripe offset and count must be specified\n",
5107                         progname, argv[0]);
5108                 return CMD_HELP;
5109         }
5110
5111         if (delete &&
5112             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
5113              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
5114                 fprintf(stderr,
5115                         "%s %s: cannot specify -d with -c or -i options\n",
5116                         progname, argv[0]);
5117                 return CMD_HELP;
5118         }
5119
5120         if (mode_opt != NULL) {
5121                 mode = strtoul(mode_opt, &end, 8);
5122                 if (*end != '\0') {
5123                         fprintf(stderr,
5124                                 "%s %s: bad MODE '%s'\n",
5125                                 progname, argv[0], mode_opt);
5126                         return CMD_HELP;
5127                 }
5128                 previous_mode = umask(0);
5129         }
5130
5131         /*
5132          * initialize stripe parameters, in case param is converted to specific,
5133          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
5134          */
5135         param = calloc(1, offsetof(typeof(*param),
5136                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
5137                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
5138         if (param == NULL) {
5139                 fprintf(stderr,
5140                         "%s %s: cannot allocate memory for parameters: %s\n",
5141                         progname, argv[0], strerror(ENOMEM));
5142                 return CMD_HELP;
5143         }
5144
5145         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
5146                 param->lsp_stripe_count = lsa.lsa_stripe_count;
5147         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5148                 param->lsp_stripe_offset = -1;
5149         else
5150                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
5151         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
5152                 param->lsp_stripe_pattern = lsa.lsa_pattern;
5153         else
5154                 param->lsp_stripe_pattern = LMV_HASH_TYPE_FNV_1A_64;
5155         param->lsp_pool = lsa.lsa_pool_name;
5156         param->lsp_is_specific = false;
5157         if (lsa.lsa_nr_tgts > 1) {
5158                 if (lsa.lsa_stripe_count > 0 &&
5159                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
5160                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
5161                         fprintf(stderr, "error: %s: stripe count %lld doesn't "
5162                                 "match the number of MDTs: %d\n",
5163                                 argv[0], lsa.lsa_stripe_count, lsa.lsa_nr_tgts);
5164                         free(param);
5165                         return CMD_HELP;
5166                 }
5167
5168                 param->lsp_is_specific = true;
5169                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
5170                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
5171         }
5172
5173         dname = argv[optind];
5174         do {
5175                 if (default_stripe) {
5176                         result = llapi_dir_set_default_lmv(dname, param);
5177                 } else {
5178                         /* if current \a dname isn't under the same \a mntdir
5179                          * as the last one, and the last one was
5180                          * auto-distributed, restore \a param.
5181                          */
5182                         if (mntdir[0] != '\0' &&
5183                             strncmp(dname, mntdir, strlen(mntdir)) &&
5184                             auto_distributed) {
5185                                 param->lsp_is_specific = false;
5186                                 param->lsp_stripe_offset = -1;
5187                                 auto_distributed = false;
5188                         }
5189
5190                         if (!param->lsp_is_specific &&
5191                             param->lsp_stripe_offset == -1) {
5192                                 char path[PATH_MAX] = "";
5193
5194                                 if (!lsb) {
5195                                         lsb = malloc(sizeof(*lsb));
5196                                         if (!lsb) {
5197                                                 result = -ENOMEM;
5198                                                 break;
5199                                         }
5200                                 }
5201                                 lsb->sb_count = 0;
5202
5203                                 /* use mntdir for dirname() temporarily */
5204                                 strncpy(mntdir, dname, sizeof(mntdir));
5205                                 if (!realpath(dirname(mntdir), path)) {
5206                                         result = -errno;
5207                                         fprintf(stderr,
5208                                                 "error: invalid path '%s': %s\n",
5209                                                 argv[optind], strerror(errno));
5210                                         break;
5211                                 }
5212                                 mntdir[0] = '\0';
5213
5214                                 result = llapi_search_mounts(path, 0, mntdir,
5215                                                              NULL);
5216                                 if (result < 0 || mntdir[0] == '\0') {
5217                                         fprintf(stderr,
5218                                                 "No suitable Lustre mount found\n");
5219                                         break;
5220                                 }
5221
5222                                 result = mntdf(mntdir, NULL, NULL, 0,
5223                                                LL_STATFS_LMV, lsb);
5224                                 if (result < 0)
5225                                         break;
5226
5227                                 if (param->lsp_stripe_count > lsb->sb_count) {
5228                                         fprintf(stderr,
5229                                                 "error: stripe count %d is too big\n",
5230                                                 param->lsp_stripe_count);
5231                                         result = -ERANGE;
5232                                         break;
5233                                 }
5234
5235                                 qsort(lsb->sb_buf, lsb->sb_count,
5236                                       sizeof(struct ll_statfs_data),
5237                                       ll_statfs_data_comp);
5238
5239                                 auto_distributed = true;
5240                         }
5241
5242                         if (auto_distributed) {
5243                                 int r;
5244                                 int nr = MAX(param->lsp_stripe_count,
5245                                              lsb->sb_count / 2);
5246
5247                                 /* don't use server whose usage is above 90% */
5248                                 while (nr != param->lsp_stripe_count &&
5249                                        obd_statfs_ratio(&lsb->sb_buf[nr].sd_st,
5250                                                         false) > 90)
5251                                         nr = MAX(param->lsp_stripe_count,
5252                                                  nr / 2);
5253
5254                                 /* get \a r between [0, nr) */
5255                                 r = rand() % nr;
5256
5257                                 param->lsp_stripe_offset =
5258                                         lsb->sb_buf[r].sd_index;
5259                                 if (param->lsp_stripe_count > 1) {
5260                                         int i = 0;
5261
5262                                         param->lsp_is_specific = true;
5263                                         for (; i < param->lsp_stripe_count; i++)
5264                                                 param->lsp_tgts[(i + r) % nr] =
5265                                                         lsb->sb_buf[i].sd_index;
5266                                 }
5267                         }
5268
5269                         result = llapi_dir_create(dname, mode, param);
5270                 }
5271
5272                 if (result) {
5273                         fprintf(stderr,
5274                                 "%s setdirstripe: cannot create stripe dir '%s': %s\n",
5275                                 progname, dname, strerror(-result));
5276                         break;
5277                 }
5278                 dname = argv[++optind];
5279         } while (dname != NULL);
5280
5281         if (mode_opt != NULL)
5282                 umask(previous_mode);
5283
5284         free(lsb);
5285         free(param);
5286         return result;
5287 }
5288
5289 /* functions */
5290 static int lfs_rmentry(int argc, char **argv)
5291 {
5292         char *dname;
5293         int   index;
5294         int   result = 0;
5295
5296         if (argc <= 1) {
5297                 fprintf(stderr, "error: %s: missing dirname\n",
5298                         argv[0]);
5299                 return CMD_HELP;
5300         }
5301
5302         index = 1;
5303         dname = argv[index];
5304         while (dname != NULL) {
5305                 result = llapi_direntry_remove(dname);
5306                 if (result) {
5307                         fprintf(stderr, "error: %s: remove dir entry '%s' "
5308                                 "failed\n", argv[0], dname);
5309                         break;
5310                 }
5311                 dname = argv[++index];
5312         }
5313         return result;
5314 }
5315
5316 static int lfs_mv(int argc, char **argv)
5317 {
5318         struct lmv_user_md lmu = { LMV_USER_MAGIC };
5319         struct find_param param = {
5320                 .fp_max_depth = -1,
5321                 .fp_mdt_index = -1,
5322         };
5323         char *end;
5324         int c;
5325         int rc = 0;
5326         struct option long_opts[] = {
5327         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5328         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5329         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5330         { .name = NULL } };
5331
5332         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
5333                 switch (c) {
5334 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5335                 case 'M':
5336                         fprintf(stderr, "warning: '-M' deprecated"
5337                                 ", use '--mdt-index' or '-m' instead\n");
5338 #endif
5339                 case 'm':
5340                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
5341                         if (*end != '\0') {
5342                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
5343                                         progname, optarg);
5344                                 return CMD_HELP;
5345                         }
5346                         break;
5347                 case 'v':
5348                         param.fp_verbose = VERBOSE_DETAIL;
5349                         break;
5350                 default:
5351                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
5352                                 progname, argv[optind - 1]);
5353                         return CMD_HELP;
5354                 }
5355         }
5356
5357         if (lmu.lum_stripe_offset == -1) {
5358                 fprintf(stderr, "%s mv: MDT index must be specified\n",
5359                         progname);
5360                 return CMD_HELP;
5361         }
5362
5363         if (optind >= argc) {
5364                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
5365                 return CMD_HELP;
5366         }
5367
5368
5369         /* initialize migrate mdt parameters */
5370         param.fp_lmv_md = &lmu;
5371         param.fp_migrate = 1;
5372         rc = llapi_migrate_mdt(argv[optind], &param);
5373         if (rc != 0)
5374                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
5375                         progname, argv[optind], param.fp_mdt_index,
5376                         strerror(-rc));
5377         return rc;
5378 }
5379
5380 static int lfs_osts(int argc, char **argv)
5381 {
5382         return lfs_tgts(argc, argv);
5383 }
5384
5385 static int lfs_mdts(int argc, char **argv)
5386 {
5387         return lfs_tgts(argc, argv);
5388 }
5389
5390 static int lfs_df(int argc, char **argv)
5391 {
5392         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5393         enum mntdf_flags flags = MNTDF_SHOW;
5394         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
5395         int c, rc = 0, index = 0;
5396         char fsname[PATH_MAX] = "", *pool_name = NULL;
5397         struct option long_opts[] = {
5398         { .val = 'h',   .name = "human-readable",
5399                                                 .has_arg = no_argument },
5400         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
5401         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
5402         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
5403         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5404         { .name = NULL} };
5405
5406         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
5407                 switch (c) {
5408                 case 'h':
5409                         flags |= MNTDF_COOKED;
5410                         break;
5411                 case 'i':
5412                         flags |= MNTDF_INODES;
5413                         break;
5414                 case 'l':
5415                         flags |= MNTDF_LAZY;
5416                         break;
5417                 case 'p':
5418                         pool_name = optarg;
5419                         break;
5420                 case 'v':
5421                         flags |= MNTDF_VERBOSE;
5422                         break;
5423                 default:
5424                         return CMD_HELP;
5425                 }
5426         }
5427         if (optind < argc && !realpath(argv[optind], path)) {
5428                 rc = -errno;
5429                 fprintf(stderr, "error: invalid path '%s': %s\n",
5430                         argv[optind], strerror(-rc));
5431                 return rc;
5432         }
5433
5434         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5435                 /* Check if we have a mount point */
5436                 if (mntdir[0] == '\0')
5437                         continue;
5438
5439                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
5440                 if (rc || path[0] != '\0')
5441                         break;
5442                 fsname[0] = '\0'; /* avoid matching in next loop */
5443                 mntdir[0] = '\0'; /* avoid matching in next loop */
5444         }
5445
5446         return rc;
5447 }
5448
5449 static int lfs_getname(int argc, char **argv)
5450 {
5451         char mntdir[PATH_MAX] = "", path[PATH_MAX] = "", fsname[PATH_MAX] = "";
5452         int rc = 0, index = 0, c;
5453         char buf[sizeof(struct obd_uuid)];
5454
5455         while ((c = getopt(argc, argv, "h")) != -1)
5456                 return CMD_HELP;
5457
5458         if (optind == argc) { /* no paths specified, get all paths. */
5459                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
5460                         rc = llapi_getname(mntdir, buf, sizeof(buf));
5461                         if (rc < 0) {
5462                                 fprintf(stderr,
5463                                         "cannot get name for `%s': %s\n",
5464                                         mntdir, strerror(-rc));
5465                                 break;
5466                         }
5467
5468                         printf("%s %s\n", buf, mntdir);
5469
5470                         path[0] = fsname[0] = mntdir[0] = 0;
5471                 }
5472         } else { /* paths specified, only attempt to search these. */
5473                 for (; optind < argc; optind++) {
5474                         rc = llapi_getname(argv[optind], buf, sizeof(buf));
5475                         if (rc < 0) {
5476                                 fprintf(stderr,
5477                                         "cannot get name for `%s': %s\n",
5478                                         argv[optind], strerror(-rc));
5479                                 break;
5480                         }
5481
5482                         printf("%s %s\n", buf, argv[optind]);
5483                 }
5484         }
5485         return rc;
5486 }
5487
5488 static int lfs_check(int argc, char **argv)
5489 {
5490         char mntdir[PATH_MAX] = {'\0'};
5491         int num_types = 1;
5492         char *obd_types[3];
5493         char obd_type1[4];
5494         char obd_type2[4];
5495         char obd_type3[4];
5496         int rc;
5497
5498         if (argc != 2) {
5499                 fprintf(stderr, "%s check: server type must be specified\n",
5500                         progname);
5501                 return CMD_HELP;
5502         }
5503
5504         obd_types[0] = obd_type1;
5505         obd_types[1] = obd_type2;
5506         obd_types[2] = obd_type3;
5507
5508         if (strcmp(argv[1], "osts") == 0) {
5509                 strcpy(obd_types[0], "osc");
5510         } else if (strcmp(argv[1], "mdts") == 0 ||
5511                    strcmp(argv[1], "mds") == 0) {
5512                 strcpy(obd_types[0], "mdc");
5513         } else if (strcmp(argv[1], "mgts") == 0) {
5514                 strcpy(obd_types[0], "mgc");
5515         } else if (strcmp(argv[1], "all") == 0 ||
5516                    strcmp(argv[1], "servers") == 0) {
5517                 num_types = 3;
5518                 strcpy(obd_types[0], "osc");
5519                 strcpy(obd_types[1], "mdc");
5520                 strcpy(obd_types[2], "mgc");
5521         } else {
5522                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
5523                         progname, argv[1]);
5524                 return CMD_HELP;
5525         }
5526
5527         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
5528         if (rc < 0 || mntdir[0] == '\0') {
5529                 fprintf(stderr,
5530                         "%s check: cannot find mounted Lustre filesystem: %s\n",
5531                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
5532                 return rc;
5533         }
5534
5535         rc = llapi_target_check(num_types, obd_types, mntdir);
5536         if (rc)
5537                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
5538                         progname, argv[1], strerror(-rc));
5539
5540         return rc;
5541
5542 }
5543
5544 #ifdef HAVE_SYS_QUOTA_H
5545 #define ARG2INT(nr, str, msg)                                           \
5546 do {                                                                    \
5547         char *endp;                                                     \
5548         nr = strtol(str, &endp, 0);                                     \
5549         if (*endp != '\0') {                                            \
5550                 fprintf(stderr, "%s: bad %s '%s'\n",                    \
5551                         progname, msg, str);                            \
5552                 return CMD_HELP;                                        \
5553         }                                                               \
5554 } while (0)
5555
5556 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
5557
5558 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
5559  * returns the value or ULONG_MAX on integer overflow or incorrect format
5560  * Notes:
5561  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
5562  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
5563  *        3. empty integer value is interpreted as 0
5564  */
5565 static unsigned long str2sec(const char* timestr)
5566 {
5567         const char spec[] = "smhdw";
5568         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5569         unsigned long val = 0;
5570         char *tail;
5571
5572         if (strpbrk(timestr, spec) == NULL) {
5573                 /* no specifiers inside the time string,
5574                    should treat it as an integer value */
5575                 val = strtoul(timestr, &tail, 10);
5576                 return *tail ? ULONG_MAX : val;
5577         }
5578
5579         /* format string is XXwXXdXXhXXmXXs */
5580         while (*timestr) {
5581                 unsigned long v;
5582                 int ind;
5583                 char* ptr;
5584
5585                 v = strtoul(timestr, &tail, 10);
5586                 if (v == ULONG_MAX || *tail == '\0')
5587                         /* value too large (ULONG_MAX or more)
5588                            or missing specifier */
5589                         goto error;
5590
5591                 ptr = strchr(spec, *tail);
5592                 if (ptr == NULL)
5593                         /* unknown specifier */
5594                         goto error;
5595
5596                 ind = ptr - spec;
5597
5598                 /* check if product will overflow the type */
5599                 if (!(v < ULONG_MAX / mult[ind]))
5600                         goto error;
5601
5602                 ADD_OVERFLOW(val, mult[ind] * v);
5603                 if (val == ULONG_MAX)
5604                         goto error;
5605
5606                 timestr = tail + 1;
5607         }
5608
5609         return val;
5610
5611 error:
5612         return ULONG_MAX;
5613 }
5614
5615 #define ARG2ULL(nr, str, def_units)                                     \
5616 do {                                                                    \
5617         unsigned long long limit, units = def_units;                    \
5618         int rc;                                                         \
5619                                                                         \
5620         rc = llapi_parse_size(str, &limit, &units, 1);                  \
5621         if (rc < 0) {                                                   \
5622                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
5623                         progname, str);                                 \
5624                 return CMD_HELP;                                        \
5625         }                                                               \
5626         nr = limit;                                                     \
5627 } while (0)
5628
5629 static inline int has_times_option(int argc, char **argv)
5630 {
5631         int i;
5632
5633         for (i = 1; i < argc; i++)
5634                 if (!strcmp(argv[i], "-t"))
5635                         return 1;
5636
5637         return 0;
5638 }
5639
5640 int lfs_setquota_times(int argc, char **argv)
5641 {
5642         int c, rc;
5643         struct if_quotactl qctl;
5644         char *mnt, *obd_type = (char *)qctl.obd_type;
5645         struct obd_dqblk *dqb = &qctl.qc_dqblk;
5646         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
5647         struct option long_opts[] = {
5648         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
5649         { .val = 'g',   .name = "group",        .has_arg = no_argument },
5650         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
5651         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
5652         { .val = 't',   .name = "times",        .has_arg = no_argument },
5653         { .val = 'u',   .name = "user",         .has_arg = no_argument },
5654         { .name = NULL } };
5655         int qtype;
5656
5657         memset(&qctl, 0, sizeof(qctl));
5658         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
5659         qctl.qc_type = ALLQUOTA;
5660
5661         while ((c = getopt_long(argc, argv, "b:gi:ptu",
5662                                 long_opts, NULL)) != -1) {
5663                 switch (c) {
5664                 case 'u':
5665                         qtype = USRQUOTA;
5666                         goto quota_type;
5667                 case 'g':
5668                         qtype = GRPQUOTA;
5669                         goto quota_type;
5670                 case 'p':
5671                         qtype = PRJQUOTA;
5672 quota_type:
5673                         if (qctl.qc_type != ALLQUOTA) {
5674                                 fprintf(stderr, "error: -u/g/p can't be used "
5675                                                 "more than once\n");
5676                                 return CMD_HELP;
5677                         }
5678                         qctl.qc_type = qtype;
5679                         break;
5680                 case 'b':
5681                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
5682                                 fprintf(stderr, "error: bad block-grace: %s\n",
5683                                         optarg);
5684                                 return CMD_HELP;
5685                         }
5686                         dqb->dqb_valid |= QIF_BTIME;
5687                         break;
5688                 case 'i':
5689                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
5690                                 fprintf(stderr, "error: bad inode-grace: %s\n",
5691                                         optarg);
5692                                 return CMD_HELP;
5693                         }
5694                         dqb->dqb_valid |= QIF_ITIME;
5695                         break;
5696                 case 't': /* Yes, of course! */
5697                         break;
5698                 default: /* getopt prints error message for us when opterr != 0 */
5699                         return CMD_HELP;
5700                 }
5701         }
5702
5703         if (qctl.qc_type == ALLQUOTA) {
5704                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
5705                 return CMD_HELP;
5706         }
5707
5708         if (optind != argc - 1) {
5709                 fprintf(stderr, "error: unexpected parameters encountered\n");
5710                 return CMD_HELP;
5711         }
5712
5713         if ((dqb->dqb_valid | QIF_BTIME && dqi->dqi_bgrace >= UINT_MAX) ||
5714             (dqb->dqb_valid | QIF_ITIME && dqi->dqi_igrace >= UINT_MAX)) {
5715                 fprintf(stderr, "error: grace time is too large\n");
5716                 return CMD_HELP;
5717         }
5718
5719         mnt = argv[optind];
5720         rc = llapi_quotactl(mnt, &qctl);
5721         if (rc) {
5722                 if (*obd_type)
5723                         fprintf(stderr, "%s %s ", obd_type,
5724                                 obd_uuid2str(&qctl.obd_uuid));
5725                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
5726                 return rc;
5727         }
5728
5729         return 0;
5730 }
5731
5732 #define BSLIMIT (1 << 0)
5733 #define BHLIMIT (1 << 1)
5734 #define ISLIMIT (1 << 2)
5735 #define IHLIMIT (1 << 3)
5736
5737 int lfs_setquota(int argc, char **argv)
5738 {
5739         int c, rc = 0;
5740         struct if_quotactl qctl;
5741         char *mnt, *obd_type = (char *)qctl.obd_type;
5742         struct obd_dqblk *dqb = &qctl.qc_dqblk;
5743         struct option long_opts[] = {
5744         { .val = 'b',   .name = "block-softlimit",
5745                                                 .has_arg = required_argument },
5746         { .val = 'B',   .name = "block-hardlimit",
5747                                                 .has_arg = required_argument },
5748         { .val = 'd',   .name = "default",      .has_arg = no_argument },
5749         { .val = 'g',   .name = "group",        .has_arg = required_argument },
5750         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
5751         { .val = 'i',   .name = "inode-softlimit",
5752                                                 .has_arg = required_argument },
5753         { .val = 'I',   .name = "inode-hardlimit",
5754                                                 .has_arg = required_argument },
5755         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
5756         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
5757         { .val = 'u',   .name = "user",         .has_arg = required_argument },
5758         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
5759         { .name = NULL } };
5760         unsigned limit_mask = 0;
5761         char *endptr;
5762         bool use_default = false;
5763         int qtype;
5764
5765         if (has_times_option(argc, argv))
5766                 return lfs_setquota_times(argc, argv);
5767
5768         memset(&qctl, 0, sizeof(qctl));
5769         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
5770         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
5771                                   * so it can be used as a marker that qc_type
5772                                   * isn't reinitialized from command line */
5773
5774         while ((c = getopt_long(argc, argv, "b:B:dg:Gi:I:p:Pu:U",
5775                 long_opts, NULL)) != -1) {
5776                 switch (c) {
5777                 case 'U':
5778                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5779                         qtype = USRQUOTA;
5780                         qctl.qc_id = 0;
5781                         goto quota_type_def;
5782                 case 'u':
5783                         qtype = USRQUOTA;
5784                         rc = name2uid(&qctl.qc_id, optarg);
5785                         goto quota_type;
5786                 case 'G':
5787                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5788                         qtype = GRPQUOTA;
5789                         qctl.qc_id = 0;
5790                         goto quota_type_def;
5791                 case 'g':
5792                         qtype = GRPQUOTA;
5793                         rc = name2gid(&qctl.qc_id, optarg);
5794                         goto quota_type;
5795                 case 'P':
5796                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5797                         qtype = PRJQUOTA;
5798                         qctl.qc_id = 0;
5799                         goto quota_type_def;
5800                 case 'p':
5801                         qtype = PRJQUOTA;
5802                         rc = name2projid(&qctl.qc_id, optarg);
5803 quota_type:
5804                         if (rc) {
5805                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
5806                                 if (*endptr != '\0') {
5807                                         fprintf(stderr, "%s setquota: invalid"
5808                                                 " id '%s'\n", progname, optarg);
5809                                         return -1;
5810                                 }
5811                         }
5812
5813                         if (qctl.qc_id == 0) {
5814                                 fprintf(stderr, "%s setquota: can't set quota"
5815                                         " for root usr/group/project.\n",
5816                                         progname);
5817                                 return -1;
5818                         }
5819
5820 quota_type_def:
5821                         if (qctl.qc_type != ALLQUOTA) {
5822                                 fprintf(stderr,
5823                                         "%s setquota: only one of -u, -U, -g,"
5824                                         " -G, -p or -P may be specified\n",
5825                                         progname);
5826                                 return CMD_HELP;
5827                         }
5828                         qctl.qc_type = qtype;
5829                         break;
5830                 case 'd':
5831                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
5832                         use_default = true;
5833                         break;
5834                 case 'b':
5835                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
5836                         dqb->dqb_bsoftlimit >>= 10;
5837                         limit_mask |= BSLIMIT;
5838                         if (dqb->dqb_bsoftlimit &&
5839                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
5840                                 fprintf(stderr,
5841                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\n"
5842                                         "See '%s help setquota' or Lustre manual for details\n",
5843                                         progname, dqb->dqb_bsoftlimit,
5844                                         progname);
5845                         break;
5846                 case 'B':
5847                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
5848                         dqb->dqb_bhardlimit >>= 10;
5849                         limit_mask |= BHLIMIT;
5850                         if (dqb->dqb_bhardlimit &&
5851                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
5852                                 fprintf(stderr,
5853                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
5854                                         "See '%s help setquota' or Lustre manual for details\n",
5855                                         progname, dqb->dqb_bhardlimit,
5856                                         progname);
5857                         break;
5858                 case 'i':
5859                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
5860                         limit_mask |= ISLIMIT;
5861                         if (dqb->dqb_isoftlimit &&
5862                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
5863                                 fprintf(stderr,
5864                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\n"
5865                                         "See '%s help setquota' or Lustre manual for details\n",
5866                                         progname, dqb->dqb_isoftlimit,
5867                                         progname);
5868                         break;
5869                 case 'I':
5870                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
5871                         limit_mask |= IHLIMIT;
5872                         if (dqb->dqb_ihardlimit &&
5873                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
5874                                 fprintf(stderr,
5875                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\n"
5876                                         "See '%s help setquota' or Lustre manual for details\n",
5877                                         progname, dqb->dqb_ihardlimit,
5878                                         progname);
5879                         break;
5880                 default:
5881                         fprintf(stderr,
5882                                 "%s setquota: unrecognized option '%s'\n",
5883                                 progname, argv[optind - 1]);
5884                         return CMD_HELP;
5885                 }
5886         }
5887
5888         if (qctl.qc_type == ALLQUOTA) {
5889                 fprintf(stderr,
5890                         "%s setquota: either -u or -g 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: at least one limit must be specified\n",
5898                         progname);
5899                 return CMD_HELP;
5900         }
5901
5902         if (use_default && limit_mask != 0) {
5903                 fprintf(stderr,
5904                         "%s setquota: limits should not be specified when"
5905                         " using default quota\n",
5906                         progname);
5907                 return CMD_HELP;
5908         }
5909
5910         if (use_default && qctl.qc_id == 0) {
5911                 fprintf(stderr,
5912                         "%s setquota: can not set default quota for root"
5913                         " user/group/project\n",
5914                         progname);
5915                 return CMD_HELP;
5916         }
5917
5918         if (optind != argc - 1) {
5919                 fprintf(stderr,
5920                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
5921                         progname, argv[optind]);
5922                 return CMD_HELP;
5923         }
5924
5925         mnt = argv[optind];
5926
5927         if (use_default) {
5928                 dqb->dqb_bhardlimit = 0;
5929                 dqb->dqb_bsoftlimit = 0;
5930                 dqb->dqb_ihardlimit = 0;
5931                 dqb->dqb_isoftlimit = 0;
5932                 dqb->dqb_itime = 0;
5933                 dqb->dqb_btime = 0;
5934                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
5935         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
5936                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
5937                 /* sigh, we can't just set blimits/ilimits */
5938                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
5939                                                .qc_type = qctl.qc_type,
5940                                                .qc_id   = qctl.qc_id};
5941
5942                 rc = llapi_quotactl(mnt, &tmp_qctl);
5943                 if (rc < 0)
5944                         return rc;
5945
5946                 if (!(limit_mask & BHLIMIT))
5947                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
5948                 if (!(limit_mask & BSLIMIT))
5949                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
5950                 if (!(limit_mask & IHLIMIT))
5951                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
5952                 if (!(limit_mask & ISLIMIT))
5953                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
5954
5955                 /* Keep grace times if we have got no softlimit arguments */
5956                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
5957                         dqb->dqb_valid |= QIF_BTIME;
5958                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
5959                 }
5960
5961                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
5962                         dqb->dqb_valid |= QIF_ITIME;
5963                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
5964                 }
5965         }
5966
5967         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
5968         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
5969
5970         rc = llapi_quotactl(mnt, &qctl);
5971         if (rc) {
5972                 if (*obd_type)
5973                         fprintf(stderr,
5974                                 "%s setquota: cannot quotactl '%s' '%s': %s",
5975                                 progname, obd_type,
5976                                 obd_uuid2str(&qctl.obd_uuid), strerror(-rc));
5977                 return rc;
5978         }
5979
5980         return 0;
5981 }
5982
5983 /* Converts seconds value into format string
5984  * result is returned in buf
5985  * Notes:
5986  *        1. result is in descenting order: 1w2d3h4m5s
5987  *        2. zero fields are not filled (except for p. 3): 5d1s
5988  *        3. zero seconds value is presented as "0s"
5989  */
5990 static char * __sec2str(time_t seconds, char *buf)
5991 {
5992         const char spec[] = "smhdw";
5993         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
5994         unsigned long c;
5995         char *tail = buf;
5996         int i;
5997
5998         for (i = sizeof(mult) / sizeof(mult[0]) - 1 ; i >= 0; i--) {
5999                 c = seconds / mult[i];
6000
6001                 if (c > 0 || (i == 0 && buf == tail))
6002                         tail += snprintf(tail, 40-(tail-buf), "%lu%c", c, spec[i]);
6003
6004                 seconds %= mult[i];
6005         }
6006
6007         return tail;
6008 }
6009
6010 static void sec2str(time_t seconds, char *buf, int rc)
6011 {
6012         char *tail = buf;
6013
6014         if (rc)
6015                 *tail++ = '[';
6016
6017         tail = __sec2str(seconds, tail);
6018
6019         if (rc && tail - buf < 39) {
6020                 *tail++ = ']';
6021                 *tail++ = 0;
6022         }
6023 }
6024
6025 static void diff2str(time_t seconds, char *buf, time_t now)
6026 {
6027
6028         buf[0] = 0;
6029         if (!seconds)
6030                 return;
6031         if (seconds <= now) {
6032                 strcpy(buf, "none");
6033                 return;
6034         }
6035         __sec2str(seconds - now, buf);
6036 }
6037
6038 static void print_quota_title(char *name, struct if_quotactl *qctl,
6039                               bool human_readable, bool show_default)
6040 {
6041         if (show_default) {
6042                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
6043                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
6044                        "Filesystem", "bquota", "blimit", "bgrace",
6045                        "iquota", "ilimit", "igrace");
6046         } else {
6047                 printf("Disk quotas for %s %s (%cid %u):\n",
6048                        qtype_name(qctl->qc_type), name,
6049                        *qtype_name(qctl->qc_type), qctl->qc_id);
6050                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
6051                        "Filesystem", human_readable ? "used" : "kbytes",
6052                        "quota", "limit", "grace",
6053                        "files", "quota", "limit", "grace");
6054         }
6055 }
6056
6057 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
6058 {
6059         if (!h) {
6060                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
6061         } else {
6062                 if (num >> 40)
6063                         snprintf(buf, buflen, "%5.4gP",
6064                                  (double)num / ((__u64)1 << 40));
6065                 else if (num >> 30)
6066                         snprintf(buf, buflen, "%5.4gT",
6067                                  (double)num / (1 << 30));
6068                 else if (num >> 20)
6069                         snprintf(buf, buflen, "%5.4gG",
6070                                  (double)num / (1 << 20));
6071                 else if (num >> 10)
6072                         snprintf(buf, buflen, "%5.4gM",
6073                                  (double)num / (1 << 10));
6074                 else
6075                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
6076         }
6077 }
6078
6079 #define STRBUF_LEN      32
6080 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
6081                         int rc, bool h, bool show_default)
6082 {
6083         time_t now;
6084
6085         time(&now);
6086
6087         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
6088             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) {
6089                 int bover = 0, iover = 0;
6090                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
6091                 char numbuf[3][STRBUF_LEN];
6092                 char timebuf[40];
6093                 char strbuf[STRBUF_LEN];
6094
6095                 if (dqb->dqb_bhardlimit &&
6096                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
6097                         bover = 1;
6098                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
6099                         if (dqb->dqb_btime > now) {
6100                                 bover = 2;
6101                         } else {
6102                                 bover = 3;
6103                         }
6104                 }
6105
6106                 if (dqb->dqb_ihardlimit &&
6107                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
6108                         iover = 1;
6109                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
6110                         if (dqb->dqb_itime > now) {
6111                                 iover = 2;
6112                         } else {
6113                                 iover = 3;
6114                         }
6115                 }
6116
6117
6118                 if (strlen(mnt) > 15)
6119                         printf("%s\n%15s", mnt, "");
6120                 else
6121                         printf("%15s", mnt);
6122
6123                 if (bover)
6124                         diff2str(dqb->dqb_btime, timebuf, now);
6125                 else if (show_default)
6126                         snprintf(timebuf, sizeof(timebuf), "%llu",
6127                                  dqb->dqb_btime);
6128
6129                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
6130                            strbuf, sizeof(strbuf), h);
6131                 if (rc == -EREMOTEIO)
6132                         sprintf(numbuf[0], "%s*", strbuf);
6133                 else
6134                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
6135                                 "%s" : "[%s]", strbuf);
6136
6137                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
6138                 if (type == QC_GENERAL)
6139                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
6140                                 "%s" : "[%s]", strbuf);
6141                 else
6142                         sprintf(numbuf[1], "%s", "-");
6143
6144                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
6145                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
6146                         "%s" : "[%s]", strbuf);
6147
6148                 if (show_default)
6149                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6150                 else
6151                         printf(" %7s%c %6s %7s %7s",
6152                                numbuf[0], bover ? '*' : ' ', numbuf[1],
6153                                numbuf[2], bover > 1 ? timebuf : "-");
6154
6155
6156                 if (iover)
6157                         diff2str(dqb->dqb_itime, timebuf, now);
6158                 else if (show_default)
6159                         snprintf(timebuf, sizeof(timebuf), "%llu",
6160                                  dqb->dqb_itime);
6161
6162                 snprintf(numbuf[0], sizeof(numbuf),
6163                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
6164                          (uintmax_t)dqb->dqb_curinodes);
6165
6166                 if (type == QC_GENERAL)
6167                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
6168                                 "%ju" : "[%ju]",
6169                                 (uintmax_t)dqb->dqb_isoftlimit);
6170                 else
6171                         sprintf(numbuf[1], "%s", "-");
6172
6173                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
6174                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
6175
6176                 if (show_default)
6177                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6178                 else if (type != QC_OSTIDX)
6179                         printf(" %7s%c %6s %7s %7s",
6180                                numbuf[0], iover ? '*' : ' ', numbuf[1],
6181                                numbuf[2], iover > 1 ? timebuf : "-");
6182                 else
6183                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
6184                 printf("\n");
6185
6186         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
6187                    qctl->qc_cmd == Q_GETOINFO) {
6188                 char bgtimebuf[40];
6189                 char igtimebuf[40];
6190
6191                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
6192                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
6193                 printf("Block grace time: %s; Inode grace time: %s\n",
6194                        bgtimebuf, igtimebuf);
6195         }
6196 }
6197
6198 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
6199                            bool h, __u64 *total)
6200 {
6201         int rc = 0, rc1 = 0, count = 0;
6202         __u32 valid = qctl->qc_valid;
6203
6204         rc = llapi_get_obd_count(mnt, &count, is_mdt);
6205         if (rc) {
6206                 fprintf(stderr, "can not get %s count: %s\n",
6207                         is_mdt ? "mdt": "ost", strerror(-rc));
6208                 return rc;
6209         }
6210
6211         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
6212                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
6213                 rc = llapi_quotactl(mnt, qctl);
6214                 if (rc) {
6215                         /* It is remote client case. */
6216                         if (rc == -EOPNOTSUPP) {
6217                                 rc = 0;
6218                                 goto out;
6219                         }
6220
6221                         if (!rc1)
6222                                 rc1 = rc;
6223                         fprintf(stderr, "quotactl %s%d failed.\n",
6224                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
6225                         continue;
6226                 }
6227
6228                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
6229                             qctl->qc_valid, 0, h, false);
6230                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
6231                                    qctl->qc_dqblk.dqb_bhardlimit;
6232         }
6233 out:
6234         qctl->qc_valid = valid;
6235         return rc ? : rc1;
6236 }
6237
6238 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
6239                            int verbose, int quiet, bool human_readable,
6240                            bool show_default)
6241 {
6242         int rc1 = 0, rc2 = 0, rc3 = 0;
6243         char *obd_type = (char *)qctl->obd_type;
6244         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
6245         __u64 total_ialloc = 0, total_balloc = 0;
6246         bool use_default_for_blk = false;
6247         bool use_default_for_file = false;
6248         int inacc;
6249
6250         rc1 = llapi_quotactl(mnt, qctl);
6251         if (rc1 < 0) {
6252                 switch (rc1) {
6253                 case -ESRCH:
6254                         fprintf(stderr, "%s quotas are not enabled.\n",
6255                                 qtype_name(qctl->qc_type));
6256                         goto out;
6257                 case -EPERM:
6258                         fprintf(stderr, "Permission denied.\n");
6259                 case -ENODEV:
6260                 case -ENOENT:
6261                         /* We already got error message. */
6262                         goto out;
6263                 default:
6264                         fprintf(stderr, "Unexpected quotactl error: %s\n",
6265                                 strerror(-rc1));
6266                 }
6267         }
6268
6269         if (!show_default && qctl->qc_id == 0) {
6270                 qctl->qc_dqblk.dqb_bhardlimit = 0;
6271                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
6272                 qctl->qc_dqblk.dqb_ihardlimit = 0;
6273                 qctl->qc_dqblk.dqb_isoftlimit = 0;
6274                 qctl->qc_dqblk.dqb_btime = 0;
6275                 qctl->qc_dqblk.dqb_itime = 0;
6276                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
6277         }
6278
6279         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
6280             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
6281                 use_default_for_blk = true;
6282                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
6283         }
6284
6285         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
6286             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
6287                 use_default_for_file = true;
6288                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
6289         }
6290
6291         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
6292              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
6293                 print_quota_title(name, qctl, human_readable, show_default);
6294
6295         if (rc1 && *obd_type)
6296                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
6297
6298         if (qctl->qc_valid != QC_GENERAL)
6299                 mnt = "";
6300
6301         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA) &&
6302                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
6303                  (QIF_LIMITS|QIF_USAGE));
6304
6305         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
6306
6307         if (!show_default && verbose &&
6308             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO) {
6309                 char strbuf[STRBUF_LEN];
6310
6311                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
6312                                       &total_ialloc);
6313                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
6314                                       &total_balloc);
6315                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
6316                            human_readable);
6317                 printf("Total allocated inode limit: %ju, total "
6318                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
6319                        strbuf);
6320         }
6321
6322         if (use_default_for_blk)
6323                 printf("%cid %u is using default block quota setting\n",
6324                        *qtype_name(qctl->qc_type), qctl->qc_id);
6325
6326         if (use_default_for_file)
6327                 printf("%cid %u is using default file quota setting\n",
6328                        *qtype_name(qctl->qc_type), qctl->qc_id);
6329
6330         if (rc1 || rc2 || rc3 || inacc)
6331                 printf("Some errors happened when getting quota info. "
6332                        "Some devices may be not working or deactivated. "
6333                        "The data in \"[]\" is inaccurate.\n");
6334 out:
6335         return rc1;
6336
6337 }
6338
6339 static int lfs_project(int argc, char **argv)
6340 {
6341         int ret = 0, err = 0, c, i;
6342         struct project_handle_control phc = { 0 };
6343         enum lfs_project_ops_t op;
6344
6345         phc.newline = true;
6346         phc.assign_projid = false;
6347         /* default action */
6348         op = LFS_PROJECT_LIST;
6349
6350         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
6351                 switch (c) {
6352                 case 'c':
6353                         if (op != LFS_PROJECT_LIST) {
6354                                 fprintf(stderr,
6355                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6356                                         progname);
6357                                 return CMD_HELP;
6358                         }
6359
6360                         op = LFS_PROJECT_CHECK;
6361                         break;
6362                 case 'C':
6363                         if (op != LFS_PROJECT_LIST) {
6364                                 fprintf(stderr,
6365                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6366                                         progname);
6367                                 return CMD_HELP;
6368                         }
6369
6370                         op = LFS_PROJECT_CLEAR;
6371                         break;
6372                 case 's':
6373                         if (op != LFS_PROJECT_LIST) {
6374                                 fprintf(stderr,
6375                                         "%s: cannot specify '-c' '-C' '-s' together\n",
6376                                         progname);
6377                                 return CMD_HELP;
6378                         }
6379
6380                         phc.set_inherit = true;
6381                         op = LFS_PROJECT_SET;
6382                         break;
6383                 case 'd':
6384                         phc.dironly = true;
6385                         break;
6386                 case 'k':
6387                         phc.keep_projid = true;
6388                         break;
6389                 case 'r':
6390                         phc.recursive = true;
6391                         break;
6392                 case 'p':
6393                         phc.projid = strtoul(optarg, NULL, 0);
6394                         phc.assign_projid = true;
6395
6396                         break;
6397                 case '0':
6398                         phc.newline = false;
6399                         break;
6400                 default:
6401                         fprintf(stderr, "%s: invalid option '%c'\n",
6402                                 progname, optopt);
6403                         return CMD_HELP;
6404                 }
6405         }
6406
6407         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
6408                 op = LFS_PROJECT_SET;
6409                 phc.set_projid = true;
6410         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
6411                 phc.set_projid = true;
6412         }
6413
6414         switch (op) {
6415         case LFS_PROJECT_CHECK:
6416                 if (phc.keep_projid) {
6417                         fprintf(stderr,
6418                                 "%s: '-k' is useless together with '-c'\n",
6419                                 progname);
6420                         return CMD_HELP;
6421                 }
6422                 break;
6423         case LFS_PROJECT_CLEAR:
6424                 if (!phc.newline) {
6425                         fprintf(stderr,
6426                                 "%s: '-0' is useless together with '-C'\n",
6427                                 progname);
6428                         return CMD_HELP;
6429                 }
6430                 if (phc.assign_projid) {
6431                         fprintf(stderr,
6432                                 "%s: '-p' is useless together with '-C'\n",
6433                                 progname);
6434                         return CMD_HELP;
6435                 }
6436                 break;
6437         case LFS_PROJECT_SET:
6438                 if (!phc.newline) {
6439                         fprintf(stderr,
6440                                 "%s: '-0' is useless together with '-s'\n",
6441                                 progname);
6442                         return CMD_HELP;
6443                 }
6444                 if (phc.keep_projid) {
6445                         fprintf(stderr,
6446                                 "%s: '-k' is useless together with '-s'\n",
6447                                 progname);
6448                         return CMD_HELP;
6449                 }
6450                 break;
6451         default:
6452                 if (!phc.newline) {
6453                         fprintf(stderr,
6454                                 "%s: '-0' is useless for list operations\n",
6455                                 progname);
6456                         return CMD_HELP;
6457                 }
6458                 break;
6459         }
6460
6461         argv += optind;
6462         argc -= optind;
6463         if (argc == 0) {
6464                 fprintf(stderr, "%s: missing file or directory target(s)\n",
6465                         progname);
6466                 return CMD_HELP;
6467         }
6468
6469         for (i = 0; i < argc; i++) {
6470                 switch (op) {
6471                 case LFS_PROJECT_CHECK:
6472                         err = lfs_project_check(argv[i], &phc);
6473                         break;
6474                 case LFS_PROJECT_LIST:
6475                         err = lfs_project_list(argv[i], &phc);
6476                         break;
6477                 case LFS_PROJECT_CLEAR:
6478                         err = lfs_project_clear(argv[i], &phc);
6479                         break;
6480                 case LFS_PROJECT_SET:
6481                         err = lfs_project_set(argv[i], &phc);
6482                         break;
6483                 default:
6484                         break;
6485                 }
6486                 if (err && !ret)
6487                         ret = err;
6488         }
6489
6490         return ret;
6491 }
6492
6493 static int lfs_quota(int argc, char **argv)
6494 {
6495         int c;
6496         char *mnt, *name = NULL;
6497         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
6498                                     .qc_type = ALLQUOTA };
6499         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
6500         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
6501         char *endptr;
6502         __u32 valid = QC_GENERAL, idx = 0;
6503         bool human_readable = false;
6504         bool show_default = false;
6505         int qtype;
6506
6507         while ((c = getopt(argc, argv, "gGi:I:o:pPqtuUvh")) != -1) {
6508                 switch (c) {
6509                 case 'U':
6510                         show_default = true;
6511                 case 'u':
6512                         qtype = USRQUOTA;
6513                         goto quota_type;
6514                 case 'G':
6515                         show_default = true;
6516                 case 'g':
6517                         qtype = GRPQUOTA;
6518                         goto quota_type;
6519                 case 'P':
6520                         show_default = true;
6521                 case 'p':
6522                         qtype = PRJQUOTA;
6523 quota_type:
6524                         if (qctl.qc_type != ALLQUOTA) {
6525                                 fprintf(stderr,
6526                                         "%s quota: only one of -u, -g, or -p may be specified\n",
6527                                         progname);
6528                                 return CMD_HELP;
6529                         }
6530                         qctl.qc_type = qtype;
6531                         break;
6532                 case 't':
6533                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
6534                         break;
6535                 case 'o':
6536                         valid = qctl.qc_valid = QC_UUID;
6537                         snprintf(obd_uuid, sizeof(qctl.obd_uuid), "%s", optarg);
6538                         break;
6539                 case 'i':
6540                         valid = qctl.qc_valid = QC_MDTIDX;
6541                         idx = qctl.qc_idx = atoi(optarg);
6542                         if (idx == 0 && *optarg != '0') {
6543                                 fprintf(stderr,
6544                                         "%s quota: invalid MDT index '%s'\n",
6545                                         progname, optarg);
6546                                 return CMD_HELP;
6547                         }
6548                         break;
6549                 case 'I':
6550                         valid = qctl.qc_valid = QC_OSTIDX;
6551                         idx = qctl.qc_idx = atoi(optarg);
6552                         if (idx == 0 && *optarg != '0') {
6553                                 fprintf(stderr,
6554                                         "%s quota: invalid OST index '%s'\n",
6555                                         progname, optarg);
6556                                 return CMD_HELP;
6557                         }
6558                         break;
6559                 case 'v':
6560                         verbose = 1;
6561                         break;
6562                 case 'q':
6563                         quiet = 1;
6564                         break;
6565                 case 'h':
6566                         human_readable = true;
6567                         break;
6568                 default:
6569                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
6570                                 progname, argv[optind - 1]);
6571                         return CMD_HELP;
6572                 }
6573         }
6574
6575         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
6576         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
6577             optind == argc - 1 && !show_default) {
6578
6579                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
6580                 qctl.qc_valid = valid;
6581                 qctl.qc_idx = idx;
6582
6583                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
6584                         qctl.qc_type = qtype;
6585                         if (qtype == USRQUOTA) {
6586                                 qctl.qc_id = geteuid();
6587                                 rc = uid2name(&name, qctl.qc_id);
6588                         } else {
6589                                 qctl.qc_id = getegid();
6590                                 rc = gid2name(&name, qctl.qc_id);
6591                         }
6592                         if (rc)
6593                                 name = "<unknown>";
6594                         mnt = argv[optind];
6595                         rc1 = get_print_quota(mnt, name, &qctl, verbose, quiet,
6596                                               human_readable, show_default);
6597                         if (rc1 && !rc)
6598                                 rc = rc1;
6599                 }
6600                 return rc;
6601         /* lfs quota -u username /path/to/lustre/mount */
6602         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
6603                 /* options should be followed by u/g-name and mntpoint */
6604                 if ((!show_default && optind + 2 != argc) ||
6605                     (show_default && optind + 1 != argc) ||
6606                     qctl.qc_type == ALLQUOTA) {
6607                         fprintf(stderr,
6608                                 "%s quota: name and mount point must be specified\n",
6609                                 progname);
6610                         return CMD_HELP;
6611                 }
6612
6613                 if (!show_default) {
6614                         name = argv[optind++];
6615                         switch (qctl.qc_type) {
6616                         case USRQUOTA:
6617                                 rc = name2uid(&qctl.qc_id, name);
6618                                 break;
6619                         case GRPQUOTA:
6620                                 rc = name2gid(&qctl.qc_id, name);
6621                                 break;
6622                         case PRJQUOTA:
6623                                 rc = name2projid(&qctl.qc_id, name);
6624                                 break;
6625                         default:
6626                                 rc = -ENOTSUP;
6627                                 break;
6628                         }
6629                 } else {
6630                         qctl.qc_valid = QC_GENERAL;
6631                         qctl.qc_cmd = LUSTRE_Q_GETDEFAULT;
6632                         qctl.qc_id = 0;
6633                 }
6634
6635                 if (rc) {
6636                         qctl.qc_id = strtoul(name, &endptr, 10);
6637                         if (*endptr != '\0') {
6638                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
6639                                         progname, name);
6640                                 return CMD_HELP;
6641                         }
6642                 }
6643         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
6644                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
6645                         progname);
6646                 return CMD_HELP;
6647         }
6648
6649         mnt = argv[optind];
6650         rc = get_print_quota(mnt, name, &qctl, verbose, quiet,
6651                              human_readable, show_default);
6652         return rc;
6653 }
6654 #endif /* HAVE_SYS_QUOTA_H! */
6655
6656 static int flushctx_ioctl(char *mp)
6657 {
6658         int fd, rc;
6659
6660         fd = open(mp, O_RDONLY);
6661         if (fd == -1) {
6662                 fprintf(stderr, "flushctx: error open %s: %s\n",
6663                         mp, strerror(errno));
6664                 return -1;
6665         }
6666
6667         rc = ioctl(fd, LL_IOC_FLUSHCTX);
6668         if (rc == -1)
6669                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
6670                         mp, strerror(errno));
6671
6672         close(fd);
6673         return rc;
6674 }
6675
6676 static int lfs_flushctx(int argc, char **argv)
6677 {
6678         int     kdestroy = 0, c;
6679         char    mntdir[PATH_MAX] = {'\0'};
6680         int     index = 0;
6681         int     rc = 0;
6682
6683         while ((c = getopt(argc, argv, "k")) != -1) {
6684                 switch (c) {
6685                 case 'k':
6686                         kdestroy = 1;
6687                         break;
6688                 default:
6689                         fprintf(stderr, "error: %s: option '-%c' "
6690                                         "unrecognized\n", argv[0], c);
6691                         return CMD_HELP;
6692                 }
6693         }
6694
6695         if (kdestroy) {
6696             if ((rc = system("kdestroy > /dev/null")) != 0) {
6697                 rc = WEXITSTATUS(rc);
6698                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
6699             }
6700         }
6701
6702         if (optind >= argc) {
6703                 /* flush for all mounted lustre fs. */
6704                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
6705                         /* Check if we have a mount point */
6706                         if (mntdir[0] == '\0')
6707                                 continue;
6708
6709                         if (flushctx_ioctl(mntdir))
6710                                 rc = -1;
6711
6712                         mntdir[0] = '\0'; /* avoid matching in next loop */
6713                 }
6714         } else {
6715                 /* flush fs as specified */
6716                 while (optind < argc) {
6717                         if (flushctx_ioctl(argv[optind++]))
6718                                 rc = -1;
6719                 }
6720         }
6721         return rc;
6722 }
6723
6724 static int lfs_changelog(int argc, char **argv)
6725 {
6726         void *changelog_priv;
6727         struct changelog_rec *rec;
6728         long long startrec = 0, endrec = 0;
6729         char *mdd;
6730         struct option long_opts[] = {
6731                 { .val = 'f', .name = "follow", .has_arg = no_argument },
6732                 { .name = NULL } };
6733         char short_opts[] = "f";
6734         int rc, follow = 0;
6735
6736         while ((rc = getopt_long(argc, argv, short_opts,
6737                 long_opts, NULL)) != -1) {
6738                 switch (rc) {
6739                 case 'f':
6740                         follow++;
6741                         break;
6742                 default:
6743                         fprintf(stderr,
6744                                 "%s changelog: unrecognized option '%s'\n",
6745                                 progname, argv[optind - 1]);
6746                         return CMD_HELP;
6747                 }
6748         }
6749         if (optind >= argc) {
6750                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
6751                         progname);
6752                 return CMD_HELP;
6753         }
6754
6755         mdd = argv[optind++];
6756         if (argc > optind)
6757                 startrec = strtoll(argv[optind++], NULL, 10);
6758         if (argc > optind)
6759                 endrec = strtoll(argv[optind++], NULL, 10);
6760
6761         rc = llapi_changelog_start(&changelog_priv,
6762                                    CHANGELOG_FLAG_BLOCK |
6763                                    CHANGELOG_FLAG_JOBID |
6764                                    CHANGELOG_FLAG_EXTRA_FLAGS |
6765                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
6766                                    mdd, startrec);
6767         if (rc < 0) {
6768                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
6769                         progname, strerror(errno = -rc));
6770                 return rc;
6771         }
6772
6773         rc = llapi_changelog_set_xflags(changelog_priv,
6774                                         CHANGELOG_EXTRA_FLAG_UIDGID |
6775                                         CHANGELOG_EXTRA_FLAG_NID |
6776                                         CHANGELOG_EXTRA_FLAG_OMODE |
6777                                         CHANGELOG_EXTRA_FLAG_XATTR);
6778         if (rc < 0) {
6779                 fprintf(stderr,
6780                         "%s changelog: cannot set xflags for changelog: %s\n",
6781                         progname, strerror(errno = -rc));
6782                 return rc;
6783         }
6784
6785         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
6786                 time_t secs;
6787                 struct tm ts;
6788
6789                 if (endrec && rec->cr_index > endrec) {
6790                         llapi_changelog_free(&rec);
6791                         break;
6792                 }
6793                 if (rec->cr_index < startrec) {
6794                         llapi_changelog_free(&rec);
6795                         continue;
6796                 }
6797
6798                 secs = rec->cr_time >> 30;
6799                 gmtime_r(&secs, &ts);
6800                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
6801                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
6802                        changelog_type2str(rec->cr_type),
6803                        ts.tm_hour, ts.tm_min, ts.tm_sec,
6804                        (int)(rec->cr_time & ((1 << 30) - 1)),
6805                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
6806                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
6807
6808                 if (rec->cr_flags & CLF_JOBID) {
6809                         struct changelog_ext_jobid *jid =
6810                                 changelog_rec_jobid(rec);
6811
6812                         if (jid->cr_jobid[0] != '\0')
6813                                 printf(" j=%s", jid->cr_jobid);
6814                 }
6815
6816                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
6817                         struct changelog_ext_extra_flags *ef =
6818                                 changelog_rec_extra_flags(rec);
6819
6820                         printf(" ef=0x%llx", ef->cr_extra_flags);
6821
6822                         if (ef->cr_extra_flags & CLFE_UIDGID) {
6823                                 struct changelog_ext_uidgid *uidgid =
6824                                         changelog_rec_uidgid(rec);
6825
6826                                 printf(" u=%llu:%llu",
6827                                        uidgid->cr_uid, uidgid->cr_gid);
6828                         }
6829                         if (ef->cr_extra_flags & CLFE_NID) {
6830                                 struct changelog_ext_nid *nid =
6831                                         changelog_rec_nid(rec);
6832
6833                                 printf(" nid=%s",
6834                                        libcfs_nid2str(nid->cr_nid));
6835                         }
6836
6837                         if (ef->cr_extra_flags & CLFE_OPEN) {
6838                                 struct changelog_ext_openmode *omd =
6839                                         changelog_rec_openmode(rec);
6840                                 char mode[] = "---";
6841
6842                                 /* exec mode must be exclusive */
6843                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
6844                                         mode[2] = 'x';
6845                                 } else {
6846                                         if (omd->cr_openflags & MDS_FMODE_READ)
6847                                                 mode[0] = 'r';
6848                                         if (omd->cr_openflags &
6849                                             (MDS_FMODE_WRITE |
6850                                              MDS_OPEN_TRUNC |
6851                                              MDS_OPEN_APPEND))
6852                                                 mode[1] = 'w';
6853                                 }
6854
6855                                 if (strcmp(mode, "---") != 0)
6856                                         printf(" m=%s", mode);
6857
6858                         }
6859
6860                         if (ef->cr_extra_flags & CLFE_XATTR) {
6861                                 struct changelog_ext_xattr *xattr =
6862                                         changelog_rec_xattr(rec);
6863
6864                                 if (xattr->cr_xattr[0] != '\0')
6865                                         printf(" x=%s", xattr->cr_xattr);
6866                         }
6867                 }
6868
6869                 if (rec->cr_namelen)
6870                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
6871                                rec->cr_namelen, changelog_rec_name(rec));
6872
6873                 if (rec->cr_flags & CLF_RENAME) {
6874                         struct changelog_ext_rename *rnm =
6875                                 changelog_rec_rename(rec);
6876
6877                         if (!fid_is_zero(&rnm->cr_sfid))
6878                                 printf(" s="DFID" sp="DFID" %.*s",
6879                                        PFID(&rnm->cr_sfid),
6880                                        PFID(&rnm->cr_spfid),
6881                                        (int)changelog_rec_snamelen(rec),
6882                                        changelog_rec_sname(rec));
6883                 }
6884                 printf("\n");
6885
6886                 llapi_changelog_free(&rec);
6887         }
6888
6889         llapi_changelog_fini(&changelog_priv);
6890
6891         if (rc < 0)
6892                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
6893                         progname, strerror(errno = -rc));
6894
6895         return (rc == 1 ? 0 : rc);
6896 }
6897
6898 static int lfs_changelog_clear(int argc, char **argv)
6899 {
6900         long long endrec;
6901         int rc;
6902
6903         if (argc != 4)
6904                 return CMD_HELP;
6905
6906         endrec = strtoll(argv[3], NULL, 10);
6907
6908         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
6909
6910         if (rc == -EINVAL)
6911                 fprintf(stderr, "%s: record out of range: %llu\n",
6912                         argv[0], endrec);
6913         else if (rc == -ENOENT)
6914                 fprintf(stderr, "%s: no changelog user: %s\n",
6915                         argv[0], argv[2]);
6916         else if (rc)
6917                 fprintf(stderr, "%s error: %s\n", argv[0],
6918                         strerror(-rc));
6919
6920         if (rc)
6921                 errno = -rc;
6922
6923         return rc;
6924 }
6925
6926 static int lfs_fid2path(int argc, char **argv)
6927 {
6928         struct option long_opts[] = {
6929                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
6930                 { .val = 'l',   .name = "link", .has_arg = required_argument },
6931                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
6932                 { .name = NULL } };
6933         char  short_opts[] = "cl:r:";
6934         char *device, *fid, *path;
6935         long long recno = -1;
6936         int linkno = -1;
6937         int lnktmp;
6938         int printcur = 0;
6939         int rc = 0;
6940         char *endptr = NULL;
6941
6942         while ((rc = getopt_long(argc, argv, short_opts,
6943                 long_opts, NULL)) != -1) {
6944                 switch (rc) {
6945                 case 'c':
6946                         printcur++;
6947                         break;
6948                 case 'l':
6949                         linkno = strtol(optarg, &endptr, 10);
6950                         if (*endptr != '\0') {
6951                                 fprintf(stderr,
6952                                         "%s fid2path: invalid linkno '%s'\n",
6953                                         progname, optarg);
6954                                 return CMD_HELP;
6955                         }
6956                         break;
6957                 case 'r':
6958                         recno = strtoll(optarg, &endptr, 10);
6959                         if (*endptr != '\0') {
6960                                 fprintf(stderr,
6961                                         "%s fid2path: invalid recno '%s'\n",
6962                                         progname, optarg);
6963                                 return CMD_HELP;
6964                         }
6965                         break;
6966                 default:
6967                         fprintf(stderr,
6968                                 "%s fid2path: unrecognized option '%s'\n",
6969                                 progname, argv[optind - 1]);
6970                         return CMD_HELP;
6971                 }
6972         }
6973
6974         if (argc < 3) {
6975                 fprintf(stderr,
6976                         "%s fid2path: <fsname|rootpath> and <fid>... must be specified\n",
6977                         progname);
6978                 return CMD_HELP;
6979         }
6980
6981         device = argv[optind++];
6982         path = calloc(1, PATH_MAX);
6983         if (path == NULL) {
6984                 rc = -errno;
6985                 fprintf(stderr,
6986                         "%s fid2path: cannot allocate memory for path: %s\n",
6987                         progname, strerror(-rc));
6988                 return rc;
6989         }
6990
6991         rc = 0;
6992         while (optind < argc) {
6993                 fid = argv[optind++];
6994
6995                 lnktmp = (linkno >= 0) ? linkno : 0;
6996                 while (1) {
6997                         int oldtmp = lnktmp;
6998                         long long rectmp = recno;
6999                         int rc2;
7000                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
7001                                              &rectmp, &lnktmp);
7002                         if (rc2 < 0) {
7003                                 fprintf(stderr,
7004                                         "%s fid2path: cannot find '%s': %s\n",
7005                                         progname, fid, strerror(errno = -rc2));
7006                                 if (rc == 0)
7007                                         rc = rc2;
7008                                 break;
7009                         }
7010
7011                         if (printcur)
7012                                 fprintf(stdout, "%lld ", rectmp);
7013                         if (device[0] == '/') {
7014                                 fprintf(stdout, "%s", device);
7015                                 if (device[strlen(device) - 1] != '/')
7016                                         fprintf(stdout, "/");
7017                         } else if (path[0] == '\0') {
7018                                 fprintf(stdout, "/");
7019                         }
7020                         fprintf(stdout, "%s\n", path);
7021
7022                         if (linkno >= 0)
7023                                 /* specified linkno */
7024                                 break;
7025                         if (oldtmp == lnktmp)
7026                                 /* no more links */
7027                                 break;
7028                 }
7029         }
7030
7031         free(path);
7032         return rc;
7033 }
7034
7035 static int lfs_path2fid(int argc, char **argv)
7036 {
7037         struct option long_opts[] = {
7038                 { .val = 'p', .name = "parents", .has_arg = no_argument },
7039                 { .name = NULL } };
7040         char            **path;
7041         const char        short_opts[] = "p";
7042         const char       *sep = "";
7043         struct lu_fid     fid;
7044         int               rc = 0;
7045         bool              show_parents = false;
7046
7047         while ((rc = getopt_long(argc, argv, short_opts,
7048                                  long_opts, NULL)) != -1) {
7049                 switch (rc) {
7050                 case 'p':
7051                         show_parents = true;
7052                         break;
7053                 default:
7054                         fprintf(stderr,
7055                                 "%s path2fid: unrecognized option '%s'\n",
7056                                 progname, argv[optind - 1]);
7057                         return CMD_HELP;
7058                 }
7059         }
7060
7061         if (optind > argc - 1) {
7062                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
7063                         progname);
7064                 return CMD_HELP;
7065         }
7066         else if (optind < argc - 1)
7067                 sep = ": ";
7068
7069         rc = 0;
7070         for (path = argv + optind; *path != NULL; path++) {
7071                 int err = 0;
7072                 if (!show_parents) {
7073                         err = llapi_path2fid(*path, &fid);
7074                         if (!err)
7075                                 printf("%s%s"DFID"\n",
7076                                        *sep != '\0' ? *path : "", sep,
7077                                        PFID(&fid));
7078                 } else {
7079                         char            name[NAME_MAX + 1];
7080                         unsigned int    linkno = 0;
7081
7082                         while ((err = llapi_path2parent(*path, linkno, &fid,
7083                                                 name, sizeof(name))) == 0) {
7084                                 if (*sep != '\0' && linkno == 0)
7085                                         printf("%s%s", *path, sep);
7086
7087                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
7088                                        PFID(&fid), name);
7089                                 linkno++;
7090                         }
7091
7092                         /* err == -ENODATA is end-of-loop */
7093                         if (linkno > 0 && err == -ENODATA) {
7094                                 printf("\n");
7095                                 err = 0;
7096                         }
7097                 }
7098
7099                 if (err) {
7100                         fprintf(stderr,
7101                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
7102                                 progname, show_parents ? "parent " : "", *path,
7103                                 strerror(-err));
7104                         if (rc == 0) {
7105                                 rc = err;
7106                                 errno = -err;
7107                         }
7108                 }
7109         }
7110
7111         return rc;
7112 }
7113
7114 static int lfs_data_version(int argc, char **argv)
7115 {
7116         char *path;
7117         __u64 data_version;
7118         int fd;
7119         int rc;
7120         int c;
7121         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
7122
7123         if (argc < 2) {
7124                 fprintf(stderr, "%s data_version: FILE must be specified\n",
7125                         progname);
7126                 return CMD_HELP;
7127         }
7128
7129         while ((c = getopt(argc, argv, "nrw")) != -1) {
7130                 switch (c) {
7131                 case 'n':
7132                         data_version_flags = 0;
7133                         break;
7134                 case 'r':
7135                         data_version_flags |= LL_DV_RD_FLUSH;
7136                         break;
7137                 case 'w':
7138                         data_version_flags |= LL_DV_WR_FLUSH;
7139                         break;
7140                 default:
7141                         fprintf(stderr,
7142                                 "%s data_version: unrecognized option '%s'\n",
7143                                 progname, argv[optind - 1]);
7144                         return CMD_HELP;
7145                 }
7146         }
7147         if (optind == argc) {
7148                 fprintf(stderr, "%s data_version: FILE must be specified\n",
7149                         progname);
7150                 return CMD_HELP;
7151         }
7152
7153         path = argv[optind];
7154         fd = open(path, O_RDONLY);
7155         if (fd < 0) {
7156                 rc = -errno;
7157                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
7158                         progname, path, strerror(-rc));
7159                 return rc;
7160         }
7161
7162         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
7163         if (rc < 0)
7164                 fprintf(stderr,
7165                         "%s data_version: cannot get version for '%s': %s\n",
7166                         progname, path, strerror(-rc));
7167         else
7168                 printf("%ju" "\n", (uintmax_t)data_version);
7169
7170         close(fd);
7171         return rc;
7172 }
7173
7174 static int lfs_hsm_state(int argc, char **argv)
7175 {
7176         int rc;
7177         int i = 1;
7178         char *path;
7179         struct hsm_user_state hus;
7180
7181         if (argc < 2)
7182                 return CMD_HELP;
7183
7184         do {
7185                 path = argv[i];
7186
7187                 rc = llapi_hsm_state_get(path, &hus);
7188                 if (rc) {
7189                         fprintf(stderr, "can't get hsm state for %s: %s\n",
7190                                 path, strerror(errno = -rc));
7191                         return rc;
7192                 }
7193
7194                 /* Display path name and status flags */
7195                 printf("%s: (0x%08x)", path, hus.hus_states);
7196
7197                 if (hus.hus_states & HS_RELEASED)
7198                         printf(" released");
7199                 if (hus.hus_states & HS_EXISTS)
7200                         printf(" exists");
7201                 if (hus.hus_states & HS_DIRTY)
7202                         printf(" dirty");
7203                 if (hus.hus_states & HS_ARCHIVED)
7204                         printf(" archived");
7205                 /* Display user-settable flags */
7206                 if (hus.hus_states & HS_NORELEASE)
7207                         printf(" never_release");
7208                 if (hus.hus_states & HS_NOARCHIVE)
7209                         printf(" never_archive");
7210                 if (hus.hus_states & HS_LOST)
7211                         printf(" lost_from_hsm");
7212
7213                 if (hus.hus_archive_id != 0)
7214                         printf(", archive_id:%d", hus.hus_archive_id);
7215                 printf("\n");
7216
7217         } while (++i < argc);
7218
7219         return 0;
7220 }
7221
7222 #define LFS_HSM_SET   0
7223 #define LFS_HSM_CLEAR 1
7224
7225 /**
7226  * Generic function to set or clear HSM flags.
7227  * Used by hsm_set and hsm_clear.
7228  *
7229  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
7230  */
7231 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
7232 {
7233         struct option long_opts[] = {
7234         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
7235         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
7236         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
7237         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
7238         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
7239         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
7240         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
7241         { .name = NULL } };
7242         char short_opts[] = "lraAdei:";
7243         __u64 mask = 0;
7244         int c, rc;
7245         char *path;
7246         __u32 archive_id = 0;
7247         char *end = NULL;
7248
7249         if (argc < 3)
7250                 return CMD_HELP;
7251
7252         while ((c = getopt_long(argc, argv, short_opts,
7253                                 long_opts, NULL)) != -1) {
7254                 switch (c) {
7255                 case 'l':
7256                         mask |= HS_LOST;
7257                         break;
7258                 case 'a':
7259                         mask |= HS_NOARCHIVE;
7260                         break;
7261                 case 'A':
7262                         mask |= HS_ARCHIVED;
7263                         break;
7264                 case 'r':
7265                         mask |= HS_NORELEASE;
7266                         break;
7267                 case 'd':
7268                         mask |= HS_DIRTY;
7269                         break;
7270                 case 'e':
7271                         mask |= HS_EXISTS;
7272                         break;
7273                 case 'i':
7274                         archive_id = strtol(optarg, &end, 10);
7275                         if (*end != '\0') {
7276                                 fprintf(stderr, "invalid archive_id: '%s'\n",
7277                                         end);
7278                                 return CMD_HELP;
7279                         }
7280                         break;
7281                 case '?':
7282                         return CMD_HELP;
7283                 default:
7284                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7285                                 argv[0], argv[optind - 1]);
7286                         return CMD_HELP;
7287                 }
7288         }
7289
7290         /* User should have specified a flag */
7291         if (mask == 0)
7292                 return CMD_HELP;
7293
7294         while (optind < argc) {
7295
7296                 path = argv[optind];
7297
7298                 /* If mode == 0, this means we apply the mask. */
7299                 if (mode == LFS_HSM_SET)
7300                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
7301                 else
7302                         rc = llapi_hsm_state_set(path, 0, mask, 0);
7303
7304                 if (rc != 0) {
7305                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
7306                                 path, strerror(errno = -rc));
7307                         return rc;
7308                 }
7309                 optind++;
7310         }
7311
7312         return 0;
7313 }
7314
7315 static int lfs_hsm_action(int argc, char **argv)
7316 {
7317         int                              rc;
7318         int                              i = 1;
7319         char                            *path;
7320         struct hsm_current_action        hca;
7321         struct hsm_extent                he;
7322         enum hsm_user_action             hua;
7323         enum hsm_progress_states         hps;
7324
7325         if (argc < 2)
7326                 return CMD_HELP;
7327
7328         do {
7329                 path = argv[i];
7330
7331                 rc = llapi_hsm_current_action(path, &hca);
7332                 if (rc) {
7333                         fprintf(stderr, "can't get hsm action for %s: %s\n",
7334                                 path, strerror(errno = -rc));
7335                         return rc;
7336                 }
7337                 he = hca.hca_location;
7338                 hua = hca.hca_action;
7339                 hps = hca.hca_state;
7340
7341                 printf("%s: %s", path, hsm_user_action2name(hua));
7342
7343                 /* Skip file without action */
7344                 if (hca.hca_action == HUA_NONE) {
7345                         printf("\n");
7346                         continue;
7347                 }
7348
7349                 printf(" %s ", hsm_progress_state2name(hps));
7350
7351                 if ((hps == HPS_RUNNING) &&
7352                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
7353                         printf("(%llu bytes moved)\n",
7354                                (unsigned long long)he.length);
7355                 else if ((he.offset + he.length) == LUSTRE_EOF)
7356                         printf("(from %llu to EOF)\n",
7357                                (unsigned long long)he.offset);
7358                 else
7359                         printf("(from %llu to %llu)\n",
7360                                (unsigned long long)he.offset,
7361                                (unsigned long long)(he.offset + he.length));
7362
7363         } while (++i < argc);
7364
7365         return 0;
7366 }
7367
7368 static int lfs_hsm_set(int argc, char **argv)
7369 {
7370         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
7371 }
7372
7373 static int lfs_hsm_clear(int argc, char **argv)
7374 {
7375         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
7376 }
7377
7378 /**
7379  * Check file state and return its fid, to be used by lfs_hsm_request().
7380  *
7381  * \param[in]     file      Path to file to check
7382  * \param[in,out] fid       Pointer to allocated lu_fid struct.
7383  * \param[in,out] last_dev  Pointer to last device id used.
7384  *
7385  * \return 0 on success.
7386  */
7387 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
7388                                 dev_t *last_dev)
7389 {
7390         struct stat     st;
7391         int             rc;
7392
7393         rc = lstat(file, &st);
7394         if (rc) {
7395                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
7396                 return -errno;
7397         }
7398         /* Checking for regular file as archiving as posix copytool
7399          * rejects archiving files other than regular files
7400          */
7401         if (!S_ISREG(st.st_mode)) {
7402                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
7403                 return CMD_HELP;
7404         }
7405         /* A request should be ... */
7406         if (*last_dev != st.st_dev && *last_dev != 0) {
7407                 fprintf(stderr, "All files should be "
7408                         "on the same filesystem: %s\n", file);
7409                 return -EINVAL;
7410         }
7411         *last_dev = st.st_dev;
7412
7413         rc = llapi_path2fid(file, fid);
7414         if (rc) {
7415                 fprintf(stderr, "Cannot read FID of %s: %s\n",
7416                         file, strerror(-rc));
7417                 return rc;
7418         }
7419         return 0;
7420 }
7421
7422 /* Fill an HSM HUR item with a given file name.
7423  *
7424  * If mntpath is set, then the filename is actually a FID, and no
7425  * lookup on the filesystem will be performed.
7426  *
7427  * \param[in]  hur         the user request to fill
7428  * \param[in]  idx         index of the item inside the HUR to fill
7429  * \param[in]  mntpath     mountpoint of Lustre
7430  * \param[in]  fname       filename (if mtnpath is NULL)
7431  *                         or FID (if mntpath is set)
7432  * \param[in]  last_dev    pointer to last device id used
7433  *
7434  * \retval 0 on success
7435  * \retval CMD_HELP or a negative errno on error
7436  */
7437 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
7438                          const char *mntpath, const char *fname,
7439                          dev_t *last_dev)
7440 {
7441         struct hsm_user_item *hui = &hur->hur_user_item[idx];
7442         int rc;
7443
7444         hui->hui_extent.length = -1;
7445
7446         if (mntpath != NULL) {
7447                 if (*fname == '[')
7448                         fname++;
7449                 rc = sscanf(fname, SFID, RFID(&hui->hui_fid));
7450                 if (rc == 3) {
7451                         rc = 0;
7452                 } else {
7453                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
7454                                 fname);
7455                         rc = -EINVAL;
7456                 }
7457         } else {
7458                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
7459         }
7460
7461         if (rc == 0)
7462                 hur->hur_request.hr_itemcount++;
7463
7464         return rc;
7465 }
7466
7467 static int lfs_hsm_request(int argc, char **argv, int action)
7468 {
7469         struct option long_opts[] = {
7470         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
7471         { .val = 'D',   .name = "data",         .has_arg = required_argument },
7472         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
7473         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
7474         { .name = NULL } };
7475         dev_t                    last_dev = 0;
7476         char                     short_opts[] = "l:D:a:m:";
7477         struct hsm_user_request *hur, *oldhur;
7478         int                      c, i;
7479         size_t                   len;
7480         int                      nbfile;
7481         char                    *line = NULL;
7482         char                    *filelist = NULL;
7483         char                     fullpath[PATH_MAX];
7484         char                    *opaque = NULL;
7485         int                      opaque_len = 0;
7486         int                      archive_id = 0;
7487         FILE                    *fp;
7488         int                      nbfile_alloc = 0;
7489         char                    *some_file = NULL;
7490         char                    *mntpath = NULL;
7491         int                      rc;
7492
7493         if (argc < 2)
7494                 return CMD_HELP;
7495
7496         while ((c = getopt_long(argc, argv, short_opts,
7497                                 long_opts, NULL)) != -1) {
7498                 switch (c) {
7499                 case 'l':
7500                         filelist = optarg;
7501                         break;
7502                 case 'D':
7503                         opaque = optarg;
7504                         break;
7505                 case 'a':
7506                         if (action != HUA_ARCHIVE &&
7507                             action != HUA_REMOVE) {
7508                                 fprintf(stderr,
7509                                         "error: -a is supported only "
7510                                         "when archiving or removing\n");
7511                                 return CMD_HELP;
7512                         }
7513                         archive_id = atoi(optarg);
7514                         break;
7515                 case 'm':
7516                         if (some_file == NULL) {
7517                                 mntpath = optarg;
7518                                 some_file = strdup(optarg);
7519                         }
7520                         break;
7521                 case '?':
7522                         return CMD_HELP;
7523                 default:
7524                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
7525                                 argv[0], argv[optind - 1]);
7526                         return CMD_HELP;
7527                 }
7528         }
7529
7530         /* All remaining args are files, so we have at least nbfile */
7531         nbfile = argc - optind;
7532
7533         if ((nbfile == 0) && (filelist == NULL))
7534                 return CMD_HELP;
7535
7536         if (opaque != NULL)
7537                 opaque_len = strlen(opaque);
7538
7539         /* Alloc the request structure with enough place to store all files
7540          * from command line. */
7541         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
7542         if (hur == NULL) {
7543                 fprintf(stderr, "Cannot create the request: %s\n",
7544                         strerror(errno));
7545                 return errno;
7546         }
7547         nbfile_alloc = nbfile;
7548
7549         hur->hur_request.hr_action = action;
7550         hur->hur_request.hr_archive_id = archive_id;
7551         hur->hur_request.hr_flags = 0;
7552
7553         /* All remaining args are files, add them */
7554         if (nbfile != 0 && some_file == NULL)
7555                 some_file = strdup(argv[optind]);
7556
7557         for (i = 0; i < nbfile; i++) {
7558                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
7559                                    &last_dev);
7560                 if (rc)
7561                         goto out_free;
7562         }
7563
7564         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
7565
7566         /* If a filelist was specified, read the filelist from it. */
7567         if (filelist != NULL) {
7568                 fp = fopen(filelist, "r");
7569                 if (fp == NULL) {
7570                         fprintf(stderr, "Cannot read the file list %s: %s\n",
7571                                 filelist, strerror(errno));
7572                         rc = -errno;
7573                         goto out_free;
7574                 }
7575
7576                 while ((rc = getline(&line, &len, fp)) != -1) {
7577                         /* If allocated buffer was too small, get something
7578                          * larger */
7579                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
7580                                 ssize_t size;
7581
7582                                 nbfile_alloc = nbfile_alloc * 2 + 1;
7583                                 oldhur = hur;
7584                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
7585                                                                    opaque_len);
7586                                 if (hur == NULL) {
7587                                         fprintf(stderr, "hsm: cannot allocate "
7588                                                 "the request: %s\n",
7589                                                 strerror(errno));
7590                                         hur = oldhur;
7591                                         rc = -errno;
7592                                         fclose(fp);
7593                                         goto out_free;
7594                                 }
7595                                 size = hur_len(oldhur);
7596                                 if (size < 0) {
7597                                         fprintf(stderr, "hsm: cannot allocate "
7598                                                 "%u files + %u bytes data\n",
7599                                             oldhur->hur_request.hr_itemcount,
7600                                             oldhur->hur_request.hr_data_len);
7601                                         free(hur);
7602                                         hur = oldhur;
7603                                         rc = -E2BIG;
7604                                         fclose(fp);
7605                                         goto out_free;
7606                                 }
7607                                 memcpy(hur, oldhur, size);
7608                                 free(oldhur);
7609                         }
7610
7611                         /* Chop CR */
7612                         if (line[strlen(line) - 1] == '\n')
7613                                 line[strlen(line) - 1] = '\0';
7614
7615                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
7616                                            mntpath, line, &last_dev);
7617                         if (rc) {
7618                                 fclose(fp);
7619                                 goto out_free;
7620                         }
7621
7622                         if (some_file == NULL) {
7623                                 some_file = line;
7624                                 line = NULL;
7625                         }
7626                 }
7627
7628                 rc = fclose(fp);
7629                 free(line);
7630         }
7631
7632         /* If a --data was used, add it to the request */
7633         hur->hur_request.hr_data_len = opaque_len;
7634         if (opaque != NULL)
7635                 memcpy(hur_data(hur), opaque, opaque_len);
7636
7637         /* Send the HSM request */
7638         if (realpath(some_file, fullpath) == NULL) {
7639                 fprintf(stderr, "Could not find path '%s': %s\n",
7640                         some_file, strerror(errno));
7641         }
7642         rc = llapi_hsm_request(fullpath, hur);
7643         if (rc) {
7644                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
7645                         some_file, strerror(-rc));
7646                 goto out_free;
7647         }
7648
7649 out_free:
7650         free(some_file);
7651         free(hur);
7652         return rc;
7653 }
7654
7655 static int lfs_hsm_archive(int argc, char **argv)
7656 {
7657         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
7658 }
7659
7660 static int lfs_hsm_restore(int argc, char **argv)
7661 {
7662         return lfs_hsm_request(argc, argv, HUA_RESTORE);
7663 }
7664
7665 static int lfs_hsm_release(int argc, char **argv)
7666 {
7667         return lfs_hsm_request(argc, argv, HUA_RELEASE);
7668 }
7669
7670 static int lfs_hsm_remove(int argc, char **argv)
7671 {
7672         return lfs_hsm_request(argc, argv, HUA_REMOVE);
7673 }
7674
7675 static int lfs_hsm_cancel(int argc, char **argv)
7676 {
7677         return lfs_hsm_request(argc, argv, HUA_CANCEL);
7678 }
7679
7680 static int lfs_swap_layouts(int argc, char **argv)
7681 {
7682         if (argc != 3)
7683                 return CMD_HELP;
7684
7685         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
7686                                   SWAP_LAYOUTS_KEEP_MTIME |
7687                                   SWAP_LAYOUTS_KEEP_ATIME);
7688 }
7689
7690 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
7691
7692 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
7693
7694 int lfs_get_mode(const char *string)
7695 {
7696         enum lock_mode_user mode;
7697
7698         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
7699                 if (lock_mode_names[mode] == NULL)
7700                         continue;
7701                 if (strcmp(string, lock_mode_names[mode]) == 0)
7702                         return mode;
7703         }
7704
7705         return -EINVAL;
7706 }
7707
7708 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
7709 {
7710         enum lu_ladvise_type advice;
7711
7712         for (advice = 0;
7713              advice < ARRAY_SIZE(ladvise_names); advice++) {
7714                 if (ladvise_names[advice] == NULL)
7715                         continue;
7716                 if (strcmp(string, ladvise_names[advice]) == 0)
7717                         return advice;
7718         }
7719
7720         return LU_LADVISE_INVALID;
7721 }
7722
7723 static int lfs_ladvise(int argc, char **argv)
7724 {
7725         struct option long_opts[] = {
7726         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
7727         { .val = 'b',   .name = "background",   .has_arg = no_argument },
7728         { .val = 'e',   .name = "end",          .has_arg = required_argument },
7729         { .val = 'l',   .name = "length",       .has_arg = required_argument },
7730         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
7731         { .val = 's',   .name = "start",        .has_arg = required_argument },
7732         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
7733         { .name = NULL } };
7734         char                     short_opts[] = "a:be:l:m:s:u";
7735         int                      c;
7736         int                      rc = 0;
7737         const char              *path;
7738         int                      fd;
7739         struct llapi_lu_ladvise  advice;
7740         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
7741         unsigned long long       start = 0;
7742         unsigned long long       end = LUSTRE_EOF;
7743         unsigned long long       length = 0;
7744         unsigned long long       size_units;
7745         unsigned long long       flags = 0;
7746         int                      mode = 0;
7747
7748         optind = 0;
7749         while ((c = getopt_long(argc, argv, short_opts,
7750                                 long_opts, NULL)) != -1) {
7751                 switch (c) {
7752                 case 'a':
7753                         advice_type = lfs_get_ladvice(optarg);
7754                         if (advice_type == LU_LADVISE_INVALID) {
7755                                 fprintf(stderr, "%s: invalid advice type "
7756                                         "'%s'\n", argv[0], optarg);
7757                                 fprintf(stderr, "Valid types:");
7758
7759                                 for (advice_type = 0;
7760                                      advice_type < ARRAY_SIZE(ladvise_names);
7761                                      advice_type++) {
7762                                         if (ladvise_names[advice_type] == NULL)
7763                                                 continue;
7764                                         fprintf(stderr, " %s",
7765                                                 ladvise_names[advice_type]);
7766                                 }
7767                                 fprintf(stderr, "\n");
7768
7769                                 return CMD_HELP;
7770                         }
7771                         break;
7772                 case 'b':
7773                         flags |= LF_ASYNC;
7774                         break;
7775                 case 'u':
7776                         flags |= LF_UNSET;
7777                         break;
7778                 case 'e':
7779                         size_units = 1;
7780                         rc = llapi_parse_size(optarg, &end,
7781                                               &size_units, 0);
7782                         if (rc) {
7783                                 fprintf(stderr, "%s: bad end offset '%s'\n",
7784                                         argv[0], optarg);
7785                                 return CMD_HELP;
7786                         }
7787                         break;
7788                 case 's':
7789                         size_units = 1;
7790                         rc = llapi_parse_size(optarg, &start,
7791                                               &size_units, 0);
7792                         if (rc) {
7793                                 fprintf(stderr, "%s: bad start offset "
7794                                         "'%s'\n", argv[0], optarg);
7795                                 return CMD_HELP;
7796                         }
7797                         break;
7798                 case 'l':
7799                         size_units = 1;
7800                         rc = llapi_parse_size(optarg, &length,
7801                                               &size_units, 0);
7802                         if (rc) {
7803                                 fprintf(stderr, "%s: bad length '%s'\n",
7804                                         argv[0], optarg);
7805                                 return CMD_HELP;
7806                         }
7807                         break;
7808                 case 'm':
7809                         mode = lfs_get_mode(optarg);
7810                         if (mode < 0) {
7811                                 fprintf(stderr, "%s: bad mode '%s', valid "
7812                                                  "modes are READ or WRITE\n",
7813                                         argv[0], optarg);
7814                                 return CMD_HELP;
7815                         }
7816                         break;
7817                 case '?':
7818                         return CMD_HELP;
7819                 default:
7820                         fprintf(stderr, "%s: option '%s' unrecognized\n",
7821                                 argv[0], argv[optind - 1]);
7822                         return CMD_HELP;
7823                 }
7824         }
7825
7826         if (advice_type == LU_LADVISE_INVALID) {
7827                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
7828                 fprintf(stderr, "Valid types:");
7829                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
7830                      advice_type++) {
7831                         if (ladvise_names[advice_type] == NULL)
7832                                 continue;
7833                         fprintf(stderr, " %s", ladvise_names[advice_type]);
7834                 }
7835                 fprintf(stderr, "\n");
7836                 return CMD_HELP;
7837         }
7838
7839         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
7840                 fprintf(stderr, "%s: Lock no expand advice is a per file "
7841                                  "descriptor advice, so when called from lfs, "
7842                                  "it does nothing.\n", argv[0]);
7843                 return CMD_HELP;
7844         }
7845
7846         if (argc <= optind) {
7847                 fprintf(stderr, "%s: please give one or more file names\n",
7848                         argv[0]);
7849                 return CMD_HELP;
7850         }
7851
7852         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
7853                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
7854                         argv[0]);
7855                 return CMD_HELP;
7856         }
7857
7858         if (end == LUSTRE_EOF && length != 0)
7859                 end = start + length;
7860
7861         if (end <= start) {
7862                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
7863                         argv[0], start, end);
7864                 return CMD_HELP;
7865         }
7866
7867         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
7868                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
7869                         argv[0]);
7870                 return CMD_HELP;
7871         }
7872
7873         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
7874                 fprintf(stderr, "%s: mode is required with lockahead\n",
7875                         argv[0]);
7876                 return CMD_HELP;
7877         }
7878
7879         while (optind < argc) {
7880                 int rc2;
7881
7882                 path = argv[optind++];
7883
7884                 fd = open(path, O_RDONLY);
7885                 if (fd < 0) {
7886                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
7887                                 argv[0], path, strerror(errno));
7888                         rc2 = -errno;
7889                         goto next;
7890                 }
7891
7892                 advice.lla_start = start;
7893                 advice.lla_end = end;
7894                 advice.lla_advice = advice_type;
7895                 advice.lla_value1 = 0;
7896                 advice.lla_value2 = 0;
7897                 advice.lla_value3 = 0;
7898                 advice.lla_value4 = 0;
7899                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
7900                         advice.lla_lockahead_mode = mode;
7901                         advice.lla_peradvice_flags = flags;
7902                 }
7903
7904                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
7905                 close(fd);
7906                 if (rc2 < 0) {
7907                         fprintf(stderr, "%s: cannot give advice '%s' to file "
7908                                 "'%s': %s\n", argv[0],
7909                                 ladvise_names[advice_type],
7910                                 path, strerror(errno));
7911
7912                         goto next;
7913                 }
7914
7915 next:
7916                 if (rc == 0 && rc2 < 0)
7917                         rc = rc2;
7918         }
7919         return rc;
7920 }
7921
7922
7923 static const char *const heat_names[] = LU_HEAT_NAMES;
7924
7925 static int lfs_heat_get(int argc, char **argv)
7926 {
7927         struct lu_heat  *heat;
7928         int              rc = 0, rc2;
7929         char            *path;
7930         int              fd;
7931         int              i;
7932
7933         if (argc <= 1)
7934                 return CMD_HELP;
7935
7936         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
7937         if (!heat) {
7938                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
7939                 return -ENOMEM;
7940         }
7941
7942         optind = 1;
7943         while (optind < argc) {
7944                 path = argv[optind++];
7945
7946                 fd = open(path, O_RDONLY);
7947                 if (fd < 0) {
7948                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
7949                                 argv[0], path, strerror(errno));
7950                         rc2 = -errno;
7951                         goto next;
7952                 }
7953
7954                 heat->lh_count = OBD_HEAT_COUNT;
7955                 rc2 = llapi_heat_get(fd, heat);
7956                 close(fd);
7957                 if (rc2 < 0) {
7958                         fprintf(stderr, "%s: cannot get heat of file '%s'"
7959                                 ": %s\n", argv[0], path, strerror(errno));
7960                         goto next;
7961                 }
7962
7963                 printf("flags: %x\n", heat->lh_flags);
7964                 for (i = 0; i < heat->lh_count; i++)
7965                         printf("%s: %llu\n", heat_names[i], heat->lh_heat[i]);
7966 next:
7967                 if (rc == 0 && rc2 < 0)
7968                         rc = rc2;
7969         }
7970
7971         free(heat);
7972         return rc;
7973 }
7974
7975 static int lfs_heat_set(int argc, char **argv)
7976 {
7977         struct option    long_opts[] = {
7978                 {"clear", no_argument, 0, 'c'},
7979                 {"off", no_argument, 0, 'o'},
7980                 {"on", no_argument, 0, 'O'},
7981                 {0, 0, 0, 0}
7982         };
7983         char             short_opts[] = "coO";
7984         int              rc = 0, rc2;
7985         char            *path;
7986         int              fd;
7987         __u64            flags = 0;
7988         int              c;
7989
7990         if (argc <= 1)
7991                 return CMD_HELP;
7992
7993         optind = 0;
7994         while ((c = getopt_long(argc, argv, short_opts,
7995                                 long_opts, NULL)) != -1) {
7996                 switch (c) {
7997                 case 'c':
7998                         flags |= LU_HEAT_FLAG_CLEAR;
7999                         break;
8000                 case 'o':
8001                         flags |= LU_HEAT_FLAG_CLEAR;
8002                         flags |= LU_HEAT_FLAG_OFF;
8003                         break;
8004                 case 'O':
8005                         flags &= ~LU_HEAT_FLAG_OFF;
8006                         break;
8007                 case '?':
8008                         return CMD_HELP;
8009                 default:
8010                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8011                                 argv[0], argv[optind - 1]);
8012                         return CMD_HELP;
8013                 }
8014         }
8015
8016         if (argc <= optind) {
8017                 fprintf(stderr, "%s: please give one or more file names\n",
8018                         argv[0]);
8019                 return CMD_HELP;
8020         }
8021
8022         while (optind < argc) {
8023                 path = argv[optind++];
8024
8025                 fd = open(path, O_RDONLY);
8026                 if (fd < 0) {
8027                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8028                                 argv[0], path, strerror(errno));
8029                         rc2 = -errno;
8030                         goto next;
8031                 }
8032
8033                 rc2 = llapi_heat_set(fd, flags);
8034                 close(fd);
8035                 if (rc2 < 0) {
8036                         fprintf(stderr, "%s: cannot setflags heat of file '%s'"
8037                                 ": %s\n", argv[0], path, strerror(errno));
8038                         goto next;
8039                 }
8040 next:
8041                 if (rc == 0 && rc2 < 0)
8042                         rc = rc2;
8043         }
8044         return rc;
8045 }
8046
8047 /** The input string contains a comma delimited list of component ids and
8048  * ranges, for example "1,2-4,7".
8049  */
8050 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
8051 {
8052         bool end_of_loop = false;
8053         char *ptr = NULL;
8054         int nr = 0;
8055         int rc;
8056
8057         if (arg == NULL)
8058                 return -EINVAL;
8059
8060         while (!end_of_loop) {
8061                 int start_index;
8062                 int end_index;
8063                 int i;
8064                 char *endptr = NULL;
8065
8066                 rc = -EINVAL;
8067                 ptr = strchrnul(arg, ',');
8068                 end_of_loop = *ptr == '\0';
8069                 *ptr = '\0';
8070
8071                 start_index = strtol(arg, &endptr, 0);
8072                 if (endptr == arg) /* no data at all */
8073                         break;
8074                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
8075                         break;
8076                 if (start_index < 0)
8077                         break;
8078
8079                 end_index = start_index;
8080                 if (*endptr == '-') {
8081                         end_index = strtol(endptr + 1, &endptr, 0);
8082                         if (*endptr != '\0')
8083                                 break;
8084                         if (end_index < start_index)
8085                                 break;
8086                 }
8087
8088                 for (i = start_index; i <= end_index && size > 0; i++) {
8089                         int j;
8090
8091                         /* remove duplicate */
8092                         for (j = 0; j < nr; j++) {
8093                                 if (ids[j] == i)
8094                                         break;
8095                         }
8096                         if (j == nr) { /* no duplicate */
8097                                 ids[nr++] = i;
8098                                 --size;
8099                         }
8100                 }
8101
8102                 if (size == 0 && i < end_index)
8103                         break;
8104
8105                 *ptr = ',';
8106                 arg = ++ptr;
8107                 rc = 0;
8108         }
8109         if (!end_of_loop && ptr != NULL)
8110                 *ptr = ',';
8111
8112         return rc < 0 ? rc : nr;
8113 }
8114
8115 /**
8116  * struct verify_mirror_id - Mirror id to be verified.
8117  * @mirror_id:   A specified mirror id.
8118  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
8119  */
8120 struct verify_mirror_id {
8121         __u16 mirror_id;
8122         bool is_valid_id;
8123 };
8124
8125 /**
8126  * compare_mirror_ids() - Compare mirror ids.
8127  * @layout: Mirror component list.
8128  * @cbdata: Callback data in verify_mirror_id structure.
8129  *
8130  * This is a callback function called by llapi_layout_comp_iterate()
8131  * to compare the specified mirror id with the one in the current
8132  * component of @layout. If they are the same, then the specified
8133  * mirror id is valid.
8134  *
8135  * Return: a negative error code on failure or
8136  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
8137  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
8138  */
8139 static inline
8140 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
8141 {
8142         struct verify_mirror_id *mirror_id_cbdata =
8143                                  (struct verify_mirror_id *)cbdata;
8144         uint32_t mirror_id;
8145         int rc = 0;
8146
8147         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
8148         if (rc < 0) {
8149                 rc = -errno;
8150                 fprintf(stderr,
8151                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
8152                         progname, strerror(errno));
8153                 return rc;
8154         }
8155
8156         if (mirror_id_cbdata->mirror_id == mirror_id) {
8157                 mirror_id_cbdata->is_valid_id = true;
8158                 return LLAPI_LAYOUT_ITER_STOP;
8159         }
8160
8161         return LLAPI_LAYOUT_ITER_CONT;
8162 }
8163
8164 /**
8165  * verify_mirror_ids() - Verify specified mirror ids.
8166  * @fname:      Mirrored file name.
8167  * @mirror_ids: Specified mirror ids to be verified.
8168  * @ids_nr:     Number of specified mirror ids.
8169  *
8170  * This function verifies that specified @mirror_ids are valid
8171  * in the mirrored file @fname.
8172  *
8173  * Return: 0 on success or a negative error code on failure.
8174  */
8175 static inline
8176 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
8177 {
8178         struct llapi_layout *layout = NULL;
8179         struct verify_mirror_id mirror_id_cbdata = { 0 };
8180         struct stat stbuf;
8181         uint32_t flr_state;
8182         int i;
8183         int fd;
8184         int rc = 0;
8185         int rc2 = 0;
8186
8187         if (ids_nr <= 0)
8188                 return -EINVAL;
8189
8190         if (stat(fname, &stbuf) < 0) {
8191                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8192                         progname, fname, strerror(errno));
8193                 rc = -errno;
8194                 goto error;
8195         }
8196
8197         if (!S_ISREG(stbuf.st_mode)) {
8198                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8199                         progname, fname);
8200                 rc = -EINVAL;
8201                 goto error;
8202         }
8203
8204         fd = open(fname, O_DIRECT | O_RDONLY);
8205         if (fd < 0) {
8206                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8207                         progname, fname, strerror(errno));
8208                 rc = -errno;
8209                 goto error;
8210         }
8211
8212         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
8213         if (rc < 0) {
8214                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
8215                         progname, fname, strerror(errno));
8216                 goto close_fd;
8217         }
8218
8219         layout = llapi_layout_get_by_fd(fd, 0);
8220         if (layout == NULL) {
8221                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8222                         progname, fname, strerror(errno));
8223                 rc = -errno;
8224                 llapi_lease_release(fd);
8225                 goto close_fd;
8226         }
8227
8228         rc = llapi_layout_flags_get(layout, &flr_state);
8229         if (rc < 0) {
8230                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8231                         progname, fname, strerror(errno));
8232                 rc = -errno;
8233                 goto free_layout;
8234         }
8235
8236         flr_state &= LCM_FL_FLR_MASK;
8237         switch (flr_state) {
8238         case LCM_FL_NONE:
8239                 rc = -EINVAL;
8240                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
8241                         progname, fname, llapi_layout_flags_string(flr_state));
8242                 goto free_layout;
8243         default:
8244                 break;
8245         }
8246
8247         rc2 = 0;
8248         for (i = 0; i < ids_nr; i++) {
8249                 mirror_id_cbdata.mirror_id = mirror_ids[i];
8250                 mirror_id_cbdata.is_valid_id = false;
8251
8252                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
8253                                                &mirror_id_cbdata);
8254                 if (rc < 0) {
8255                         rc = -errno;
8256                         fprintf(stderr,
8257                                 "%s: '%s' failed to verify mirror id: %u.\n",
8258                                 progname, fname, mirror_ids[i]);
8259                         goto free_layout;
8260                 }
8261
8262                 if (!mirror_id_cbdata.is_valid_id) {
8263                         rc2 = -EINVAL;
8264                         fprintf(stderr,
8265                                 "%s: '%s' invalid specified mirror id: %u.\n",
8266                                 progname, fname, mirror_ids[i]);
8267                 }
8268         }
8269         rc = rc2;
8270
8271 free_layout:
8272         llapi_layout_free(layout);
8273         llapi_lease_release(fd);
8274 close_fd:
8275         close(fd);
8276 error:
8277         return rc;
8278 }
8279
8280 static inline
8281 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
8282                            __u16 *mirror_ids, int ids_nr)
8283 {
8284         struct llapi_resync_comp comp_array[1024] = { { 0 } };
8285         struct llapi_layout *layout;
8286         struct stat stbuf;
8287         uint32_t flr_state;
8288         uint64_t start;
8289         uint64_t end;
8290         int comp_size = 0;
8291         int idx;
8292         int fd;
8293         int rc;
8294
8295         if (stat(fname, &stbuf) < 0) {
8296                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
8297                         progname, fname, strerror(errno));
8298                 rc = -errno;
8299                 goto error;
8300         }
8301         if (!S_ISREG(stbuf.st_mode)) {
8302                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
8303                         progname, fname);
8304                 rc = -EINVAL;
8305                 goto error;
8306         }
8307
8308         fd = open(fname, O_DIRECT | O_RDWR);
8309         if (fd < 0) {
8310                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
8311                         progname, fname, strerror(errno));
8312                 rc = -errno;
8313                 goto error;
8314         }
8315
8316         layout = llapi_layout_get_by_fd(fd, 0);
8317         if (layout == NULL) {
8318                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
8319                         progname, fname, strerror(errno));
8320                 rc = -errno;
8321                 goto close_fd;
8322         }
8323
8324         rc = llapi_layout_flags_get(layout, &flr_state);
8325         if (rc) {
8326                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
8327                         progname, fname, strerror(errno));
8328                 rc = -errno;
8329                 goto free_layout;
8330         }
8331
8332         flr_state &= LCM_FL_FLR_MASK;
8333         if (flr_state == LCM_FL_NONE) {
8334                 rc = -EINVAL;
8335                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
8336                         progname, fname);
8337                 goto free_layout;
8338         }
8339
8340         /* get stale component info */
8341         comp_size = llapi_mirror_find_stale(layout, comp_array,
8342                                             ARRAY_SIZE(comp_array),
8343                                             mirror_ids, ids_nr);
8344         if (comp_size <= 0) {
8345                 rc = comp_size;
8346                 goto free_layout;
8347         }
8348
8349         ioc->lil_mode = LL_LEASE_WRLCK;
8350         ioc->lil_flags = LL_LEASE_RESYNC;
8351         rc = llapi_lease_set(fd, ioc);
8352         if (rc < 0) {
8353                 if (rc == -EALREADY)
8354                         rc = 0;
8355                 else
8356                         fprintf(stderr,
8357                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
8358                                 progname, fname, strerror(errno));
8359                 goto free_layout;
8360         }
8361
8362         /* get the read range [start, end) */
8363         start = comp_array[0].lrc_start;
8364         end = comp_array[0].lrc_end;
8365         for (idx = 1; idx < comp_size; idx++) {
8366                 if (comp_array[idx].lrc_start < start)
8367                         start = comp_array[idx].lrc_start;
8368                 if (end < comp_array[idx].lrc_end)
8369                         end = comp_array[idx].lrc_end;
8370         }
8371
8372         rc = llapi_lease_check(fd);
8373         if (rc != LL_LEASE_WRLCK) {
8374                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
8375                         progname, fname);
8376                 goto free_layout;
8377         }
8378
8379         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
8380                                       start, end);
8381         if (rc < 0)
8382                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %d.\n",
8383                         progname, fname, rc);
8384
8385         /* prepare ioc for lease put */
8386         ioc->lil_mode = LL_LEASE_UNLCK;
8387         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
8388         ioc->lil_count = 0;
8389         for (idx = 0; idx < comp_size; idx++) {
8390                 if (comp_array[idx].lrc_synced) {
8391                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
8392                         ioc->lil_count++;
8393                 }
8394         }
8395
8396         rc = llapi_lease_set(fd, ioc);
8397         if (rc <= 0) {
8398                 if (rc == 0) /* lost lease lock */
8399                         rc = -EBUSY;
8400                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
8401                         progname, fname, strerror(errno));
8402                 goto free_layout;
8403         }
8404         /**
8405          * llapi_lease_set returns lease mode when it request to unlock
8406          * the lease lock
8407          */
8408         rc = 0;
8409
8410 free_layout:
8411         llapi_layout_free(layout);
8412 close_fd:
8413         close(fd);
8414 error:
8415         return rc;
8416 }
8417
8418 static inline int lfs_mirror_resync(int argc, char **argv)
8419 {
8420         struct ll_ioc_lease *ioc = NULL;
8421         __u16 mirror_ids[128] = { 0 };
8422         int ids_nr = 0;
8423         int c;
8424         int rc = 0;
8425
8426         struct option long_opts[] = {
8427         { .val = 'o',   .name = "only",         .has_arg = required_argument },
8428         { .name = NULL } };
8429
8430         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
8431                 switch (c) {
8432                 case 'o':
8433                         rc = parse_mirror_ids(mirror_ids,
8434                                         sizeof(mirror_ids) / sizeof(__u16),
8435                                         optarg);
8436                         if (rc < 0) {
8437                                 fprintf(stderr,
8438                                         "%s: bad mirror ids '%s'.\n",
8439                                         argv[0], optarg);
8440                                 goto error;
8441                         }
8442                         ids_nr = rc;
8443                         break;
8444                 default:
8445                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
8446                                 argv[0], argv[optind - 1]);
8447                         rc = -EINVAL;
8448                         goto error;
8449                 }
8450         }
8451
8452         if (argc == optind) {
8453                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
8454                 rc = CMD_HELP;
8455                 goto error;
8456         }
8457
8458         if (ids_nr > 0 && argc > optind + 1) {
8459                 fprintf(stderr,
8460                     "%s: option '--only' cannot be used upon multiple files.\n",
8461                         argv[0]);
8462                 rc = CMD_HELP;
8463                 goto error;
8464
8465         }
8466
8467         if (ids_nr > 0) {
8468                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
8469                 if (rc < 0)
8470                         goto error;
8471         }
8472
8473         /* set the lease on the file */
8474         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
8475         if (ioc == NULL) {
8476                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
8477                         argv[0], strerror(errno));
8478                 rc = -errno;
8479                 goto error;
8480         }
8481
8482         for (; optind < argc; optind++) {
8483                 rc = lfs_mirror_resync_file(argv[optind], ioc,
8484                                             mirror_ids, ids_nr);
8485                 /* ignore previous file's error, continue with next file */
8486
8487                 /* reset ioc */
8488                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
8489         }
8490
8491         free(ioc);
8492 error:
8493         return rc;
8494 }
8495
8496 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
8497 {
8498         struct llapi_layout *layout;
8499         int rc;
8500
8501         layout = llapi_layout_get_by_fd(fd, 0);
8502         if (layout == NULL) {
8503                 fprintf(stderr, "could not get layout.\n");
8504                 return  -EINVAL;
8505         }
8506
8507         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
8508         if (rc < 0) {
8509                 fprintf(stderr, "failed to iterate layout\n");
8510                 llapi_layout_free(layout);
8511
8512                 return rc;
8513         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
8514                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
8515                 llapi_layout_free(layout);
8516
8517                 return -EINVAL;
8518         }
8519         llapi_layout_free(layout);
8520
8521         return 0;
8522 }
8523
8524 /**
8525  * Check whether two files are the same file
8526  * \retval      0  same file
8527  * \retval      1  not the same file
8528  * \retval      <0 error code
8529  */
8530 static inline int check_same_file(const char *f1, const char *f2)
8531 {
8532         struct stat stbuf1;
8533         struct stat stbuf2;
8534
8535         if (stat(f1, &stbuf1) < 0) {
8536                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
8537                         progname, f1, strerror(errno));
8538                 return -errno;
8539         }
8540
8541         if (stat(f2, &stbuf2) < 0) {
8542                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
8543                         progname, f2, strerror(errno));
8544                 return -errno;
8545         }
8546
8547         if (stbuf1.st_rdev == stbuf2.st_rdev &&
8548             stbuf1.st_ino == stbuf2.st_ino)
8549                 return 0;
8550
8551         return 1;
8552 }
8553
8554 static inline int lfs_mirror_read(int argc, char **argv)
8555 {
8556         int rc = CMD_HELP;
8557         __u16 mirror_id = 0;
8558         const char *outfile = NULL;
8559         char *fname;
8560         int fd = 0;
8561         int outfd;
8562         int c;
8563         void *buf;
8564         const size_t buflen = 4 << 20;
8565         off_t pos;
8566         struct option long_opts[] = {
8567         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
8568         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
8569         { .name = NULL } };
8570
8571         while ((c = getopt_long(argc, argv, "N:o:", long_opts, NULL)) >= 0) {
8572                 char *end;
8573
8574                 switch (c) {
8575                 case 'N':
8576                         mirror_id = strtoul(optarg, &end, 0);
8577                         if (*end != '\0' || mirror_id == 0) {
8578                                 fprintf(stderr,
8579                                         "%s %s: invalid mirror ID '%s'\n",
8580                                         progname, argv[0], optarg);
8581                                 return rc;
8582                         }
8583                         break;
8584                 case 'o':
8585                         outfile = optarg;
8586                         break;
8587                 default:
8588                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
8589                                 progname, argv[optind - 1]);
8590                         return -EINVAL;
8591                 }
8592         }
8593
8594         if (argc == optind) {
8595                 fprintf(stderr, "%s %s: no mirrored file provided\n",
8596                         progname, argv[0]);
8597                 return rc;
8598         } else if (argc > optind + 1) {
8599                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
8600                 return rc;
8601         }
8602
8603         if (mirror_id == 0) {
8604                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
8605                         progname, argv[0]);
8606                 return rc;
8607         }
8608
8609         /* open mirror file */
8610         fname = argv[optind];
8611
8612         if (outfile) {
8613                 rc = check_same_file(fname, outfile);
8614                 if (rc == 0) {
8615                         fprintf(stderr,
8616                         "%s %s: output file cannot be the mirrored file\n",
8617                                 progname, argv[0]);
8618                         return -EINVAL;
8619                 }
8620                 if (rc < 0)
8621                         return rc;
8622         }
8623
8624         fd = open(fname, O_DIRECT | O_RDONLY);
8625         if (fd < 0) {
8626                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
8627                         progname, argv[0], fname, strerror(errno));
8628                 return rc;
8629         }
8630
8631         /* verify mirror id */
8632         rc = verify_mirror_id_by_fd(fd, mirror_id);
8633         if (rc) {
8634                 fprintf(stderr,
8635                         "%s %s: cannot find mirror with ID %u in '%s'\n",
8636                         progname, argv[0], mirror_id, fname);
8637                 goto close_fd;
8638         }
8639
8640         /* open output file */
8641         if (outfile) {
8642                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
8643                 if (outfd < 0) {
8644                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
8645                                 progname, argv[0], outfile, strerror(errno));
8646                         rc = -errno;
8647                         goto close_fd;
8648                 }
8649         } else {
8650                 outfd = STDOUT_FILENO;
8651         }
8652
8653         /* allocate buffer */
8654         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
8655         if (rc) {
8656                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
8657                                 progname, argv[0], rc);
8658                 goto close_outfd;
8659         }
8660
8661         pos = 0;
8662         while (1) {
8663                 ssize_t bytes_read;
8664                 ssize_t written = 0;
8665
8666                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
8667                 if (bytes_read < 0) {
8668                         rc = bytes_read;
8669                         fprintf(stderr,
8670                                 "%s %s: fail to read data from mirror %u: %s\n",
8671                                 progname, argv[0], mirror_id, strerror(-rc));
8672                         goto free_buf;
8673                 }
8674
8675                 /* EOF reached */
8676                 if (bytes_read == 0)
8677                         break;
8678
8679                 while (written < bytes_read) {
8680                         ssize_t written2;
8681
8682                         written2 = write(outfd, buf + written,
8683                                          bytes_read - written);
8684                         if (written2 < 0) {
8685                                 fprintf(stderr,
8686                                         "%s %s: fail to write %s: %s\n",
8687                                         progname, argv[0], outfile ? : "STDOUT",
8688                                         strerror(errno));
8689                                 rc = -errno;
8690                                 goto free_buf;
8691                         }
8692                         written += written2;
8693                 }
8694
8695                 if (written != bytes_read) {
8696                         fprintf(stderr,
8697                 "%s %s: written %ld bytes does not match with %ld read.\n",
8698                                 progname, argv[0], written, bytes_read);
8699                         rc = -EIO;
8700                         goto free_buf;
8701                 }
8702
8703                 pos += bytes_read;
8704         }
8705
8706         fsync(outfd);
8707         rc = 0;
8708
8709 free_buf:
8710         free(buf);
8711 close_outfd:
8712         if (outfile)
8713                 close(outfd);
8714 close_fd:
8715         close(fd);
8716
8717         return rc;
8718 }
8719
8720 static inline int lfs_mirror_write(int argc, char **argv)
8721 {
8722         int rc = CMD_HELP;
8723         __u16 mirror_id = 0;
8724         const char *inputfile = NULL;
8725         char *fname;
8726         int fd = 0;
8727         int inputfd;
8728         int c;
8729         void *buf;
8730         const size_t buflen = 4 << 20;
8731         off_t pos;
8732         size_t page_size = sysconf(_SC_PAGESIZE);
8733         struct ll_ioc_lease_id ioc;
8734
8735         struct option long_opts[] = {
8736         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
8737         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
8738         { .name = NULL } };
8739
8740         while ((c = getopt_long(argc, argv, "N:i:", long_opts, NULL)) >= 0) {
8741                 char *end;
8742
8743                 switch (c) {
8744                 case 'N':
8745                         mirror_id = strtoul(optarg, &end, 0);
8746                         if (*end != '\0' || mirror_id == 0) {
8747                                 fprintf(stderr,
8748                                         "%s %s: invalid mirror ID '%s'\n",
8749                                         progname, argv[0], optarg);
8750                                 return rc;
8751                         }
8752                         break;
8753                 case 'i':
8754                         inputfile = optarg;
8755                         break;
8756                 default:
8757                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8758                                 progname, argv[optind - 1]);
8759                         return -EINVAL;
8760                 }
8761         }
8762
8763         if (argc == optind) {
8764                 fprintf(stderr, "%s %s: no mirrored file provided\n",
8765                         progname, argv[0]);
8766                 return rc;
8767         } else if (argc > optind + 1) {
8768                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
8769                 return rc;
8770         }
8771
8772         if (mirror_id == 0) {
8773                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
8774                         progname, argv[0]);
8775                 return rc;
8776         }
8777
8778         /* open mirror file */
8779         fname = argv[optind];
8780
8781         if (inputfile) {
8782                 rc = check_same_file(fname, inputfile);
8783                 if (rc == 0) {
8784                         fprintf(stderr,
8785                         "%s %s: input file cannot be the mirrored file\n",
8786                                 progname, argv[0]);
8787                         return -EINVAL;
8788                 }
8789                 if (rc < 0)
8790                         return rc;
8791         }
8792
8793         fd = open(fname, O_DIRECT | O_WRONLY);
8794         if (fd < 0) {
8795                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
8796                         progname, argv[0], fname, strerror(errno));
8797                 return rc;
8798         }
8799
8800         /* verify mirror id */
8801         rc = verify_mirror_id_by_fd(fd, mirror_id);
8802         if (rc) {
8803                 fprintf(stderr,
8804                         "%s %s: cannot find mirror with ID %u in '%s'\n",
8805                         progname, argv[0], mirror_id, fname);
8806                 goto close_fd;
8807         }
8808
8809         /* open input file */
8810         if (inputfile) {
8811                 inputfd = open(inputfile, O_RDONLY, 0644);
8812                 if (inputfd < 0) {
8813                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
8814                                 progname, argv[0], inputfile, strerror(errno));
8815                         rc = -errno;
8816                         goto close_fd;
8817                 }
8818         } else {
8819                 inputfd = STDIN_FILENO;
8820         }
8821
8822         /* allocate buffer */
8823         rc = posix_memalign(&buf, page_size, buflen);
8824         if (rc) {
8825                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
8826                         progname, argv[0], rc);
8827                 goto close_inputfd;
8828         }
8829
8830         /* prepare target mirror components instantiation */
8831         ioc.lil_mode = LL_LEASE_WRLCK;
8832         ioc.lil_flags = LL_LEASE_RESYNC;
8833         ioc.lil_mirror_id = mirror_id;
8834         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
8835         if (rc < 0) {
8836                 fprintf(stderr,
8837                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
8838                         progname, argv[0], fname, strerror(errno));
8839                 goto free_buf;
8840         }
8841
8842         pos = 0;
8843         while (1) {
8844                 ssize_t bytes_read;
8845                 ssize_t written;
8846                 size_t to_write;
8847
8848                 rc = llapi_lease_check(fd);
8849                 if (rc != LL_LEASE_WRLCK) {
8850                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
8851                                 progname, argv[0], fname);
8852                         goto free_buf;
8853                 }
8854
8855                 bytes_read = read(inputfd, buf, buflen);
8856                 if (bytes_read < 0) {
8857                         rc = bytes_read;
8858                         fprintf(stderr,
8859                                 "%s %s: fail to read data from '%s': %s\n",
8860                                 progname, argv[0], inputfile ? : "STDIN",
8861                                 strerror(errno));
8862                         rc = -errno;
8863                         goto free_buf;
8864                 }
8865
8866                 /* EOF reached */
8867                 if (bytes_read == 0)
8868                         break;
8869
8870                 /* round up to page align to make direct IO happy. */
8871                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
8872
8873                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
8874                                              pos);
8875                 if (written < 0) {
8876                         rc = written;
8877                         fprintf(stderr,
8878                               "%s %s: fail to write to mirror %u: %s\n",
8879                                 progname, argv[0], mirror_id,
8880                                 strerror(-rc));
8881                         goto free_buf;
8882                 }
8883
8884                 pos += bytes_read;
8885         }
8886
8887         if (pos & (page_size - 1)) {
8888                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
8889                 if (rc < 0)
8890                         goto free_buf;
8891         }
8892
8893         ioc.lil_mode = LL_LEASE_UNLCK;
8894         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
8895         ioc.lil_count = 0;
8896         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
8897         if (rc <= 0) {
8898                 if (rc == 0)
8899                         rc = -EBUSY;
8900                 fprintf(stderr,
8901                         "%s %s: release lease lock of '%s' failed: %s\n",
8902                         progname, argv[0], fname, strerror(errno));
8903                 goto free_buf;
8904         }
8905
8906         rc = 0;
8907
8908 free_buf:
8909         free(buf);
8910 close_inputfd:
8911         if (inputfile)
8912                 close(inputfd);
8913 close_fd:
8914         close(fd);
8915
8916         return rc;
8917 }
8918
8919 struct collect_ids_data {
8920         __u16   *cid_ids;
8921         int     cid_count;
8922         __u16   cid_exclude;
8923 };
8924
8925 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
8926 {
8927         struct collect_ids_data *cid = cbdata;
8928         uint32_t id;
8929         int rc;
8930
8931         rc = llapi_layout_mirror_id_get(layout, &id);
8932         if (rc < 0)
8933                 return rc;
8934
8935         if ((__u16)id != cid->cid_exclude) {
8936                 int i;
8937
8938                 for (i = 0; i < cid->cid_count; i++) {
8939                         /* already collected the mirror id */
8940                         if (id == cid->cid_ids[i])
8941                                 return LLAPI_LAYOUT_ITER_CONT;
8942                 }
8943                 cid->cid_ids[cid->cid_count] = id;
8944                 cid->cid_count++;
8945         }
8946
8947         return LLAPI_LAYOUT_ITER_CONT;
8948 }
8949
8950 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
8951 {
8952         struct llapi_layout *layout;
8953         struct collect_ids_data cid = { .cid_ids = ids,
8954                                         .cid_count = 0,
8955                                         .cid_exclude = exclude_id, };
8956         int rc;
8957
8958         layout = llapi_layout_get_by_fd(fd, 0);
8959         if (layout == NULL) {
8960                 fprintf(stderr, "could not get layout\n");
8961                 return -EINVAL;
8962         }
8963
8964         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
8965         if (rc < 0) {
8966                 fprintf(stderr, "failed to iterate layout\n");
8967                 llapi_layout_free(layout);
8968
8969                 return rc;
8970         }
8971         llapi_layout_free(layout);
8972
8973         return cid.cid_count;
8974 }
8975
8976 static inline int lfs_mirror_copy(int argc, char **argv)
8977 {
8978         int rc = CMD_HELP;
8979         __u16 read_mirror_id = 0;
8980         __u16 ids[128] = { 0 };
8981         int count = 0;
8982         struct llapi_layout *layout = NULL;
8983         struct llapi_resync_comp comp_array[1024] = { { 0 } };
8984         int comp_size = 0;
8985         char *fname;
8986         int fd = 0;
8987         int c;
8988         int i;
8989         ssize_t copied;
8990         struct ll_ioc_lease *ioc = NULL;
8991         struct ll_ioc_lease_id *resync_ioc;
8992
8993         struct option long_opts[] = {
8994         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
8995         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
8996         { .name = NULL } };
8997
8998         while ((c = getopt_long(argc, argv, "i:o:", long_opts, NULL)) >= 0) {
8999                 char *end;
9000
9001                 switch (c) {
9002                 case 'i':
9003                         read_mirror_id = strtoul(optarg, &end, 0);
9004                         if (*end != '\0' || read_mirror_id == 0) {
9005                                 fprintf(stderr,
9006                                         "%s %s: invalid read mirror ID '%s'\n",
9007                                         progname, argv[0], optarg);
9008                                 return rc;
9009                         }
9010                         break;
9011                 case 'o':
9012                         if (!strcmp(optarg, "-1")) {
9013                                 /* specify all other mirrors */
9014                                 ids[0] = (__u16)-1;
9015                                 count = 1;
9016                         } else {
9017                                 count = parse_mirror_ids((__u16 *)ids,
9018                                                          ARRAY_SIZE(ids),
9019                                                          optarg);
9020                                 if (count < 0)
9021                                         return rc;
9022                         }
9023                         break;
9024                 default:
9025                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9026                                 progname, argv[optind - 1]);
9027                         return -EINVAL;
9028                 }
9029         }
9030
9031         if (argc == optind) {
9032                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9033                         progname, argv[0]);
9034                 return rc;
9035         } else if (argc > optind + 1) {
9036                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9037                 return rc;
9038         }
9039
9040         if (read_mirror_id == 0) {
9041                 fprintf(stderr,
9042                         "%s %s: no valid read mirror ID %d is provided\n",
9043                         progname, argv[0], read_mirror_id);
9044                 return rc;
9045         }
9046
9047         if (count == 0) {
9048                 fprintf(stderr,
9049                         "%s %s: no write mirror ID is provided\n",
9050                         progname, argv[0]);
9051                 return rc;
9052         }
9053
9054         for (i = 0; i < count; i++) {
9055                 if (read_mirror_id == ids[i]) {
9056                         fprintf(stderr,
9057                         "%s %s: read and write mirror ID cannot be the same\n",
9058                                 progname, argv[0]);
9059                         return rc;
9060                 }
9061         }
9062
9063         /* open mirror file */
9064         fname = argv[optind];
9065
9066         fd = open(fname, O_DIRECT | O_RDWR);
9067         if (fd < 0) {
9068                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9069                         progname, argv[0], fname, strerror(errno));
9070                 return rc;
9071         }
9072
9073         /* write to all other mirrors */
9074         if (ids[0] == (__u16)-1) {
9075                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
9076                 if (count <= 0) {
9077                         rc = count;
9078                         fprintf(stderr,
9079                         "%s %s: failed to get other mirror ids in '%s': %d\n",
9080                                 progname, argv[0], fname, rc);
9081                         goto close_fd;
9082                 }
9083         }
9084
9085         /* verify mirror id */
9086         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
9087         if (rc) {
9088                 fprintf(stderr,
9089                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9090                         progname, argv[0], read_mirror_id, fname);
9091                 goto close_fd;
9092         }
9093
9094         for (i = 0; i < count; i++) {
9095                 rc = verify_mirror_id_by_fd(fd, ids[i]);
9096                 if (rc) {
9097                         fprintf(stderr,
9098                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9099                                 progname, argv[0], ids[i], fname);
9100                         goto close_fd;
9101                 }
9102         }
9103
9104         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
9105         if (ioc == NULL) {
9106                 fprintf(stderr,
9107                         "%s %s: cannot alloc comp id array for ioc: %s\n",
9108                         progname, argv[0], strerror(errno));
9109                 rc = -errno;
9110                 goto close_fd;
9111         }
9112
9113         /* get stale component info */
9114         layout = llapi_layout_get_by_fd(fd, 0);
9115         if (layout == NULL) {
9116                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
9117                         progname, argv[0], fname, strerror(errno));
9118                 rc = -errno;
9119                 goto free_ioc;
9120         }
9121         comp_size = llapi_mirror_find_stale(layout, comp_array,
9122                                             ARRAY_SIZE(comp_array),
9123                                             ids, count);
9124         llapi_layout_free(layout);
9125         if (comp_size < 0) {
9126                 rc = comp_size;
9127                 goto free_ioc;
9128         }
9129
9130         /* prepare target mirror components instantiation */
9131         resync_ioc = (struct ll_ioc_lease_id *)ioc;
9132         resync_ioc->lil_mode = LL_LEASE_WRLCK;
9133         resync_ioc->lil_flags = LL_LEASE_RESYNC;
9134         if (count == 1)
9135                 resync_ioc->lil_mirror_id = ids[0];
9136         else
9137                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
9138         rc = llapi_lease_set(fd, ioc);
9139         if (rc < 0) {
9140                 fprintf(stderr,
9141                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
9142                         progname, argv[0], fname, strerror(errno));
9143                 goto free_ioc;
9144         }
9145
9146         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
9147         if (copied < 0) {
9148                 rc = copied;
9149                 fprintf(stderr, "%s %s: copy error: %d\n",
9150                         progname, argv[0], rc);
9151                 goto free_ioc;
9152         }
9153
9154         fprintf(stdout, "mirror copied successfully: ");
9155         for (i = 0; i < copied; i++)
9156                 fprintf(stdout, "%d ", ids[i]);
9157         fprintf(stdout, "\n");
9158
9159         ioc->lil_mode = LL_LEASE_UNLCK;
9160         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
9161         ioc->lil_count = 0;
9162         for (i = 0; i < comp_size; i++) {
9163                 int j;
9164
9165                 for (j = 0; j < copied; j++) {
9166                         if (comp_array[i].lrc_mirror_id != ids[j])
9167                                 continue;
9168
9169                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
9170                         ioc->lil_count++;
9171                 }
9172         }
9173         rc = llapi_lease_set(fd, ioc);
9174         if (rc <= 0) {
9175                 if (rc == 0)
9176                         rc = -EBUSY;
9177                 fprintf(stderr,
9178                         "%s %s: release lease lock of '%s' failed: %s\n",
9179                         progname, argv[0], fname, strerror(errno));
9180                 goto free_ioc;
9181         }
9182
9183         rc = 0;
9184
9185 free_ioc:
9186         free(ioc);
9187 close_fd:
9188         close(fd);
9189
9190         return rc;
9191 }
9192 /**
9193  * struct verify_chunk - Mirror chunk to be verified.
9194  * @chunk:        [start, end) of the chunk.
9195  * @mirror_count: Number of mirror ids in @mirror_id array.
9196  * @mirror_id:    Array of valid mirror ids that cover the chunk.
9197  */
9198 struct verify_chunk {
9199         struct lu_extent chunk;
9200         unsigned int mirror_count;
9201         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
9202 };
9203
9204 /**
9205  * print_chunks() - Print chunk information.
9206  * @fname:       Mirrored file name.
9207  * @chunks:      Array of chunks.
9208  * @chunk_count: Number of chunks in @chunks array.
9209  *
9210  * This function prints [start, end) of each chunk in @chunks
9211  * for mirrored file @fname, and also prints the valid mirror ids
9212  * that cover the chunk.
9213  *
9214  * Return: void.
9215  */
9216 static inline
9217 void print_chunks(const char *fname, struct verify_chunk *chunks,
9218                   int chunk_count)
9219 {
9220         int i;
9221         int j;
9222
9223         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
9224         for (i = 0; i < chunk_count; i++) {
9225                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
9226
9227                 if (chunks[i].mirror_count == 0)
9228                         fprintf(stdout, "\t[");
9229                 else {
9230                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
9231                         for (j = 1; j < chunks[i].mirror_count; j++)
9232                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
9233                 }
9234                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
9235         }
9236         fprintf(stdout, "\n");
9237 }
9238
9239 /**
9240  * print_checksums() - Print CRC-32 checksum values.
9241  * @chunk: A chunk and its corresponding valid mirror ids.
9242  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
9243  *
9244  * This function prints CRC-32 checksum values on @chunk for
9245  * each valid mirror that covers it.
9246  *
9247  * Return: void.
9248  */
9249 static inline
9250 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
9251 {
9252         int i;
9253
9254         fprintf(stdout,
9255                 "CRC-32 checksum value for chunk "DEXT":\n",
9256                 PEXT(&chunk->chunk));
9257         for (i = 0; i < chunk->mirror_count; i++)
9258                 fprintf(stdout, "Mirror %u:\t%#lx\n",
9259                         chunk->mirror_id[i], crc[i]);
9260         fprintf(stdout, "\n");
9261 }
9262
9263 /**
9264  * filter_mirror_id() - Filter specified mirror ids.
9265  * @chunks:      Array of chunks.
9266  * @chunk_count: Number of chunks in @chunks array.
9267  * @mirror_ids:  Specified mirror ids to be verified.
9268  * @ids_nr:      Number of specified mirror ids.
9269  *
9270  * This function scans valid mirror ids that cover each chunk in @chunks
9271  * and filters specified mirror ids.
9272  *
9273  * Return: void.
9274  */
9275 static inline
9276 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
9277                       __u16 *mirror_ids, int ids_nr)
9278 {
9279         int i;
9280         int j;
9281         int k;
9282         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9283         unsigned int valid_count = 0;
9284
9285         for (i = 0; i < chunk_count; i++) {
9286                 if (chunks[i].mirror_count == 0)
9287                         continue;
9288
9289                 valid_count = 0;
9290                 for (j = 0; j < ids_nr; j++) {
9291                         for (k = 0; k < chunks[i].mirror_count; k++) {
9292                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
9293                                         valid_id[valid_count] = mirror_ids[j];
9294                                         valid_count++;
9295                                         break;
9296                                 }
9297                         }
9298                 }
9299
9300                 memcpy(chunks[i].mirror_id, valid_id,
9301                        sizeof(__u16) * valid_count);
9302                 chunks[i].mirror_count = valid_count;
9303         }
9304 }
9305
9306 /**
9307  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
9308  * @layout:      Mirror component list.
9309  * @chunks:      Array of chunks.
9310  * @chunks_size: Array size of @chunks.
9311  *
9312  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
9313  * to find out chunk segments and store them in @chunks array.
9314  *
9315  * The @mirror_id array in each element of @chunks will store the valid
9316  * mirror ids that cover the chunk. If a mirror component covering the
9317  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
9318  * will not be stored into the @mirror_id array, and the chunk for that
9319  * mirror will not be verified.
9320  *
9321  * The @mirror_count in each element of @chunks will store the number of
9322  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
9323  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
9324  * indicates the chunk is valid in only one mirror. In both cases, the
9325  * chunk will not be verified.
9326  *
9327  * Here is an example:
9328  *
9329  *  0      1M     2M     3M     4M           EOF
9330  *  +------+-------------+--------------------+
9331  *  |      |             |      S             |       mirror1
9332  *  +------+------+------+------+-------------+
9333  *  |             |   S  |   S  |             |       mirror2
9334  *  +-------------+------+------+-------------+
9335  *
9336  * prepared @chunks array will contain 5 elements:
9337  * (([0, 1M), [1, 2], 2),
9338  *  ([1M, 2M), [1, 2], 2),
9339  *  ([2M, 3M), [1], 1),
9340  *  ([3M, 4M], [], 0),
9341  *  ([4M, EOF), [2], 1))
9342  *
9343  * Return: the actual array size of @chunks on success
9344  *         or a negative error code on failure.
9345  */
9346 static inline
9347 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
9348                              struct verify_chunk *chunks,
9349                              size_t chunks_size)
9350 {
9351         uint64_t start;
9352         uint64_t end;
9353         uint32_t mirror_id;
9354         uint32_t flags;
9355         int idx = 0;
9356         int i = 0;
9357         int rc = 0;
9358
9359         memset(chunks, 0, sizeof(*chunks) * chunks_size);
9360
9361         while (1) {
9362                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
9363                 if (rc < 0) {
9364                         fprintf(stderr,
9365                                 "%s: move to the first layout component: %s.\n",
9366                                 progname, strerror(errno));
9367                         goto error;
9368                 }
9369
9370                 i = 0;
9371                 rc = 0;
9372                 chunks[idx].chunk.e_end = LUSTRE_EOF;
9373                 while (rc == 0) {
9374                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
9375                         if (rc < 0) {
9376                                 fprintf(stderr,
9377                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
9378                                         progname, strerror(errno));
9379                                 goto error;
9380                         }
9381
9382                         if (start > chunks[idx].chunk.e_start ||
9383                             end <= chunks[idx].chunk.e_start)
9384                                 goto next;
9385
9386                         if (end < chunks[idx].chunk.e_end)
9387                                 chunks[idx].chunk.e_end = end;
9388
9389                         rc = llapi_layout_comp_flags_get(layout, &flags);
9390                         if (rc < 0) {
9391                                 fprintf(stderr,
9392                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
9393                                         progname, strerror(errno));
9394                                 goto error;
9395                         }
9396
9397                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
9398                                 goto next;
9399
9400                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
9401                         if (rc < 0) {
9402                                 fprintf(stderr,
9403                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
9404                                         progname, strerror(errno));
9405                                 goto error;
9406                         }
9407
9408                         chunks[idx].mirror_id[i] = mirror_id;
9409                         i++;
9410                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
9411                                 fprintf(stderr,
9412                                         "%s: mirror_id array is too small.\n",
9413                                         progname);
9414                                 rc = -EINVAL;
9415                                 goto error;
9416                         }
9417
9418                 next:
9419                         rc = llapi_layout_comp_use(layout,
9420                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
9421                         if (rc < 0) {
9422                                 fprintf(stderr,
9423                                         "%s: move to the next layout component: %s.\n",
9424                                         progname, strerror(errno));
9425                                 goto error;
9426                         }
9427                 } /* loop through all components */
9428
9429                 chunks[idx].mirror_count = i;
9430
9431                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
9432                         break;
9433
9434                 idx++;
9435                 if (idx >= chunks_size) {
9436                         fprintf(stderr, "%s: chunks array is too small.\n",
9437                                 progname);
9438                         rc = -EINVAL;
9439                         goto error;
9440                 }
9441
9442                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
9443         }
9444
9445 error:
9446         return rc < 0 ? rc : idx + 1;
9447 }
9448
9449 /**
9450  * lfs_mirror_verify_chunk() - Verify a chunk.
9451  * @fd:        File descriptor of the mirrored file.
9452  * @file_size: Size of the mirrored file.
9453  * @chunk:     A chunk and its corresponding valid mirror ids.
9454  * @verbose:   Verbose mode.
9455  *
9456  * This function verifies a @chunk contains exactly the same data
9457  * ammong the mirrors that cover it.
9458  *
9459  * If @verbose is specified, then the function will print where the
9460  * differences are if the data do not match. Otherwise, it will
9461  * just return an error in that case.
9462  *
9463  * Return: 0 on success or a negative error code on failure.
9464  */
9465 static inline
9466 int lfs_mirror_verify_chunk(int fd, size_t file_size,
9467                             struct verify_chunk *chunk, int verbose)
9468 {
9469         const size_t buflen = 4 * 1024 * 1024; /* 4M */
9470         void *buf;
9471         size_t page_size = sysconf(_SC_PAGESIZE);
9472         ssize_t bytes_read;
9473         ssize_t bytes_done;
9474         size_t count;
9475         off_t pos;
9476         unsigned long crc;
9477         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9478         int i;
9479         int rc = 0;
9480
9481         if (file_size == 0)
9482                 return 0;
9483
9484         rc = posix_memalign(&buf, page_size, buflen);
9485         if (rc) /* error code is returned directly */
9486                 return -rc;
9487
9488         if (verbose > 1) {
9489                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
9490                         PEXT(&chunk->chunk));
9491                 for (i = 0; i < chunk->mirror_count; i++)
9492                         fprintf(stdout, " %u", chunk->mirror_id[i]);
9493                 fprintf(stdout, "\n");
9494         }
9495
9496         bytes_done = 0;
9497         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
9498         pos = chunk->chunk.e_start;
9499         while (bytes_done < count) {
9500                 /* compute initial CRC-32 checksum */
9501                 crc = crc32(0L, Z_NULL, 0);
9502                 memset(crc_array, 0, sizeof(crc_array));
9503
9504                 bytes_read = 0;
9505                 for (i = 0; i < chunk->mirror_count; i++) {
9506                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
9507                                                        buf, buflen, pos);
9508                         if (bytes_read < 0) {
9509                                 rc = bytes_read;
9510                                 fprintf(stderr,
9511                                         "%s: failed to read data from mirror %u: %s.\n",
9512                                         progname, chunk->mirror_id[i],
9513                                         strerror(-rc));
9514                                 goto error;
9515                         }
9516
9517                         /* compute new CRC-32 checksum */
9518                         crc_array[i] = crc32(crc, buf, bytes_read);
9519                 }
9520
9521                 if (verbose)
9522                         print_checksums(chunk, crc_array);
9523
9524                 /* compare CRC-32 checksum values */
9525                 for (i = 1; i < chunk->mirror_count; i++) {
9526                         if (crc_array[i] != crc_array[0]) {
9527                                 rc = -EINVAL;
9528
9529                                 fprintf(stderr,
9530                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
9531                                         progname, PEXT(&chunk->chunk),
9532                                         chunk->mirror_id[0],
9533                                         chunk->mirror_id[i]);
9534                         }
9535                 }
9536
9537                 pos += bytes_read;
9538                 bytes_done += bytes_read;
9539         }
9540
9541         if (verbose > 1 && rc == 0) {
9542                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
9543                         PEXT(&chunk->chunk));
9544                 for (i = 0; i < chunk->mirror_count; i++)
9545                         fprintf(stdout, " %u", chunk->mirror_id[i]);
9546                 fprintf(stdout, " PASS\n\n");
9547         }
9548
9549 error:
9550         free(buf);
9551         return rc;
9552 }
9553
9554 /**
9555  * lfs_mirror_verify_file() - Verify a mirrored file.
9556  * @fname:      Mirrored file name.
9557  * @mirror_ids: Specified mirror ids to be verified.
9558  * @ids_nr:     Number of specified mirror ids.
9559  * @verbose:    Verbose mode.
9560  *
9561  * This function verifies that each SYNC mirror of a mirrored file
9562  * specified by @fname contains exactly the same data.
9563  *
9564  * If @mirror_ids is specified, then the function will verify the
9565  * mirrors specified by @mirror_ids contain exactly the same data.
9566  *
9567  * If @verbose is specified, then the function will print where the
9568  * differences are if the data do not match. Otherwise, it will
9569  * just return an error in that case.
9570  *
9571  * Return: 0 on success or a negative error code on failure.
9572  */
9573 static inline
9574 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
9575                            int verbose)
9576 {
9577         struct verify_chunk chunks_array[1024] = { };
9578         struct llapi_layout *layout = NULL;
9579         struct stat stbuf;
9580         uint32_t flr_state;
9581         int fd;
9582         int chunk_count = 0;
9583         int idx = 0;
9584         int rc = 0;
9585         int rc1 = 0;
9586         int rc2 = 0;
9587
9588         if (stat(fname, &stbuf) < 0) {
9589                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9590                         progname, fname, strerror(errno));
9591                 rc = -errno;
9592                 goto error;
9593         }
9594
9595         if (!S_ISREG(stbuf.st_mode)) {
9596                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9597                         progname, fname);
9598                 rc = -EINVAL;
9599                 goto error;
9600         }
9601
9602         if (stbuf.st_size == 0) {
9603                 if (verbose)
9604                         fprintf(stdout, "%s: '%s' file size is 0.\n",
9605                                 progname, fname);
9606                 rc = 0;
9607                 goto error;
9608         }
9609
9610         fd = open(fname, O_DIRECT | O_RDONLY);
9611         if (fd < 0) {
9612                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9613                         progname, fname, strerror(errno));
9614                 rc = -errno;
9615                 goto error;
9616         }
9617
9618         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
9619         if (rc < 0) {
9620                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
9621                         progname, fname, strerror(errno));
9622                 goto close_fd;
9623         }
9624
9625         layout = llapi_layout_get_by_fd(fd, 0);
9626         if (layout == NULL) {
9627                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9628                         progname, fname, strerror(errno));
9629                 rc = -errno;
9630                 llapi_lease_release(fd);
9631                 goto close_fd;
9632         }
9633
9634         rc = llapi_layout_flags_get(layout, &flr_state);
9635         if (rc < 0) {
9636                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9637                         progname, fname, strerror(errno));
9638                 rc = -errno;
9639                 goto free_layout;
9640         }
9641
9642         flr_state &= LCM_FL_FLR_MASK;
9643         switch (flr_state) {
9644         case LCM_FL_NONE:
9645                 rc = -EINVAL;
9646                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
9647                         progname, fname, llapi_layout_flags_string(flr_state));
9648                 goto free_layout;
9649         default:
9650                 break;
9651         }
9652
9653         /* find out mirror chunks to be verified */
9654         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
9655                                                ARRAY_SIZE(chunks_array));
9656         if (chunk_count < 0) {
9657                 rc = chunk_count;
9658                 goto free_layout;
9659         }
9660
9661         if (ids_nr > 0)
9662                 /* filter specified mirror ids */
9663                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
9664
9665         if (verbose > 2)
9666                 print_chunks(fname, chunks_array, chunk_count);
9667
9668         for (idx = 0; idx < chunk_count; idx++) {
9669                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
9670                         if (verbose)
9671                                 fprintf(stdout,
9672                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
9673                                         progname, fname,
9674                                         PEXT(&chunks_array[idx].chunk),
9675                                         (unsigned long long)stbuf.st_size);
9676                         break;
9677                 }
9678
9679                 if (chunks_array[idx].mirror_count == 0) {
9680                         fprintf(stderr,
9681                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
9682                                 progname, fname,
9683                                 PEXT(&chunks_array[idx].chunk));
9684                         if (verbose) {
9685                                 fprintf(stderr, "skipped\n");
9686                                 continue;
9687                         }
9688                         rc = -EINVAL;
9689                         fprintf(stderr, "failed\n");
9690                         goto free_layout;
9691                 }
9692
9693                 if (chunks_array[idx].mirror_count == 1) {
9694                         if (verbose)
9695                                 fprintf(stdout,
9696                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
9697                                         progname, fname,
9698                                         PEXT(&chunks_array[idx].chunk),
9699                                         chunks_array[idx].mirror_id[0]);
9700                         continue;
9701                 }
9702
9703                 rc = llapi_lease_check(fd);
9704                 if (rc != LL_LEASE_RDLCK) {
9705                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
9706                                 progname, fname);
9707                         goto free_layout;
9708                 }
9709
9710                 /* verify one chunk */
9711                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
9712                                               &chunks_array[idx], verbose);
9713                 if (rc1 < 0) {
9714                         rc2 = rc1;
9715                         if (!verbose) {
9716                                 rc = rc1;
9717                                 goto free_layout;
9718                         }
9719                 }
9720         }
9721
9722         if (rc2 < 0)
9723                 rc = rc2;
9724
9725 free_layout:
9726         llapi_layout_free(layout);
9727         llapi_lease_release(fd);
9728 close_fd:
9729         close(fd);
9730 error:
9731         return rc;
9732 }
9733
9734 /**
9735  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
9736  * @argc: The count of lfs mirror verify command line arguments.
9737  * @argv: Array of strings for lfs mirror verify command line arguments.
9738  *
9739  * This function parses lfs mirror verify command and verifies the
9740  * specified mirrored file(s).
9741  *
9742  * Return: 0 on success or a negative error code on failure.
9743  */
9744 static inline int lfs_mirror_verify(int argc, char **argv)
9745 {
9746         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
9747         int ids_nr = 0;
9748         int c;
9749         int verbose = 0;
9750         int rc = 0;
9751         int rc1 = 0;
9752         char cmd[PATH_MAX];
9753
9754         struct option long_opts[] = {
9755         { .val = 'o',   .name = "only",         .has_arg = required_argument },
9756         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
9757         { .name = NULL } };
9758
9759         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
9760         progname = cmd;
9761         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
9762                 switch (c) {
9763                 case 'o':
9764                         rc = parse_mirror_ids(mirror_ids,
9765                                               ARRAY_SIZE(mirror_ids),
9766                                               optarg);
9767                         if (rc < 0) {
9768                                 fprintf(stderr,
9769                                         "%s: bad mirror ids '%s'.\n",
9770                                         progname, optarg);
9771                                 goto error;
9772                         }
9773                         ids_nr = rc;
9774                         if (ids_nr < 2) {
9775                                 fprintf(stderr,
9776                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
9777                                         progname);
9778                                 rc = CMD_HELP;
9779                                 goto error;
9780                         }
9781                         break;
9782                 case 'v':
9783                         verbose++;
9784                         break;
9785                 default:
9786                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
9787                                 progname, argv[optind - 1]);
9788                         rc = -EINVAL;
9789                         goto error;
9790                 }
9791         }
9792
9793         if (argc == optind) {
9794                 fprintf(stderr, "%s: no file name given.\n", progname);
9795                 rc = CMD_HELP;
9796                 goto error;
9797         }
9798
9799         if (ids_nr > 0 && argc > optind + 1) {
9800                 fprintf(stderr,
9801                         "%s: '--only' cannot be used upon multiple files.\n",
9802                         progname);
9803                 rc = CMD_HELP;
9804                 goto error;
9805
9806         }
9807
9808         if (ids_nr > 0) {
9809                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
9810                 if (rc < 0)
9811                         goto error;
9812         }
9813
9814         rc = 0;
9815         for (; optind < argc; optind++) {
9816                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
9817                                              verbose);
9818                 if (rc1 < 0)
9819                         rc = rc1;
9820         }
9821 error:
9822         return rc;
9823 }
9824
9825 /**
9826  * lfs_mirror() - Parse and execute lfs mirror commands.
9827  * @argc: The count of lfs mirror command line arguments.
9828  * @argv: Array of strings for lfs mirror command line arguments.
9829  *
9830  * This function parses lfs mirror commands and performs the
9831  * corresponding functions specified in mirror_cmdlist[].
9832  *
9833  * Return: 0 on success or an error code on failure.
9834  */
9835 static int lfs_mirror(int argc, char **argv)
9836 {
9837         char cmd[PATH_MAX];
9838         int rc = 0;
9839
9840         setlinebuf(stdout);
9841
9842         Parser_init("lfs-mirror > ", mirror_cmdlist);
9843
9844         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
9845         progname = cmd;
9846         program_invocation_short_name = cmd;
9847         if (argc > 1)
9848                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
9849         else
9850                 rc = Parser_commands();
9851
9852         return rc < 0 ? -rc : rc;
9853 }
9854
9855 static void lustre_som_swab(struct lustre_som_attrs *attrs)
9856 {
9857 #if __BYTE_ORDER == __BIG_ENDIAN
9858         __swab16s(&attrs->lsa_valid);
9859         __swab64s(&attrs->lsa_size);
9860         __swab64s(&attrs->lsa_blocks);
9861 #endif
9862 }
9863
9864 enum lfs_som_type {
9865         LFS_SOM_SIZE = 0x1,
9866         LFS_SOM_BLOCKS = 0x2,
9867         LFS_SOM_FLAGS = 0x4,
9868         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
9869                            LFS_SOM_FLAGS,
9870 };
9871
9872 static int lfs_getsom(int argc, char **argv)
9873 {
9874         const char *path;
9875         struct lustre_som_attrs *attrs;
9876         char buf[sizeof(*attrs) + 64];
9877         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
9878         int rc = 0, c;
9879
9880         while ((c = getopt(argc, argv, "sbf")) != -1) {
9881                 switch (c) {
9882                 case 's':
9883                         type = LFS_SOM_SIZE;
9884                         break;
9885                 case 'b':
9886                         type = LFS_SOM_BLOCKS;
9887                         break;
9888                 case 'f':
9889                         type = LFS_SOM_FLAGS;
9890                         break;
9891                 default:
9892                         fprintf(stderr, "%s: invalid option '%c'\n",
9893                                 progname, optopt);
9894                         return CMD_HELP;
9895                 }
9896         }
9897
9898         argc -= optind;
9899         argv += optind;
9900
9901         if (argc != 1) {
9902                 fprintf(stderr, "%s: %s\n",
9903                         progname, argc == 0 ? "miss file target" :
9904                         "input more than 2 files");
9905                 return CMD_HELP;
9906         }
9907
9908         path = argv[0];
9909         attrs = (void *)buf;
9910         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
9911         if (rc < 0) {
9912                 rc = -errno;
9913                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
9914                         argv[0], strerror(errno), errno);
9915                 return rc;
9916         }
9917
9918         lustre_som_swab(attrs);
9919
9920         switch (type) {
9921         case LFS_SOM_ATTR_ALL:
9922                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
9923                        path, attrs->lsa_size, attrs->lsa_blocks,
9924                        attrs->lsa_valid);
9925                 break;
9926         case LFS_SOM_SIZE:
9927                 printf("%llu\n", attrs->lsa_size);
9928                 break;
9929         case LFS_SOM_BLOCKS:
9930                 printf("%llu\n", attrs->lsa_blocks);
9931                 break;
9932         case LFS_SOM_FLAGS:
9933                 printf("%x\n", attrs->lsa_valid);
9934                 break;
9935         default:
9936                 fprintf(stderr, "%s: unknown option\n", progname);
9937                 return CMD_HELP;
9938         }
9939
9940         return 0;
9941 }
9942
9943 /**
9944  * lfs_mirror_list_commands() - List lfs mirror commands.
9945  * @argc: The count of command line arguments.
9946  * @argv: Array of strings for command line arguments.
9947  *
9948  * This function lists lfs mirror commands defined in mirror_cmdlist[].
9949  *
9950  * Return: 0 on success.
9951  */
9952 static int lfs_mirror_list_commands(int argc, char **argv)
9953 {
9954         char buffer[81] = "";
9955
9956         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
9957                              NULL, 0, 4);
9958
9959         return 0;
9960 }
9961
9962 static int lfs_list_commands(int argc, char **argv)
9963 {
9964         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
9965
9966         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
9967
9968         return 0;
9969 }
9970
9971 int main(int argc, char **argv)
9972 {
9973         int rc;
9974
9975         /* Ensure that liblustreapi constructor has run */
9976         if (!llapi_liblustreapi_initialized())
9977                 fprintf(stderr, "liblustreapi was not properly initialized\n");
9978
9979         setlinebuf(stdout);
9980         opterr = 0;
9981
9982         Parser_init("lfs > ", cmdlist);
9983
9984         progname = program_invocation_short_name; /* Used in error messages */
9985         if (argc > 1) {
9986                 llapi_set_command_name(argv[1]);
9987                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
9988                 llapi_clear_command_name();
9989         } else {
9990                 rc = Parser_commands();
9991         }
9992
9993         return rc < 0 ? -rc : rc;
9994 }
9995
9996 #ifdef _LUSTRE_IDL_H_
9997 /* Everything we need here should be included by lustreapi.h. */
9998 # error "lfs should not depend on lustre_idl.h"
9999 #endif /* _LUSTRE_IDL_H_ */