lustre/utils/lfs.c

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