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  *
  31  * lustre/utils/lfs.c
  32  *
  33  * Author: Peter J. Braam <braam@clusterfs.com>
  34  * Author: Phil Schwan <phil@clusterfs.com>
  35  * Author: Robert Read <rread@clusterfs.com>
  36  */
  37
  38 /* for O_DIRECTORY */
  39 #ifndef _GNU_SOURCE
  40 #define _GNU_SOURCE
  41 #endif
  42
  43 #include <stdlib.h>
  44 #include <stdio.h>
  45 #include <inttypes.h>
  46 #include <getopt.h>
  47 #include <string.h>
  48 #include <mntent.h>
  49 #include <unistd.h>
  50 #include <errno.h>
  51 #include <err.h>
  52 #include <pwd.h>
  53 #include <grp.h>
  54 #include <sys/ioctl.h>
  55 #include <sys/quota.h>
  56 #include <sys/time.h>
  57 #include <sys/types.h>
  58 #include <sys/stat.h>
  59 #include <sys/param.h>
  60 #include <sys/xattr.h>
  61 #include <fcntl.h>
  62 #include <dirent.h>
  63 #include <time.h>
  64 #include <ctype.h>
  65 #include <zlib.h>
  66 #include <libgen.h>
  67 #include <asm/byteorder.h>
  68 #include "lfs_project.h"
  69
  70 #include <libcfs/util/string.h>
  71 #include <libcfs/util/ioctl.h>
  72 #include <libcfs/util/parser.h>
  73 #include <libcfs/util/string.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 <lnetconfig/cyaml.h>
  79 #include "lstddef.h"
  80
  81 /* all functions */
  82 static int lfs_find(int argc, char **argv);
  83 static int lfs_getstripe(int argc, char **argv);
  84 static int lfs_getdirstripe(int argc, char **argv);
  85 static int lfs_setdirstripe(int argc, char **argv);
  86 static int lfs_rmentry(int argc, char **argv);
  87 static int lfs_unlink_foreign(int argc, char **argv);
  88 static int lfs_osts(int argc, char **argv);
  89 static int lfs_mdts(int argc, char **argv);
  90 static int lfs_df(int argc, char **argv);
  91 static int lfs_getname(int argc, char **argv);
  92 static int lfs_check(int argc, char **argv);
  93 #ifdef HAVE_SYS_QUOTA_H
  94 static int lfs_setquota(int argc, char **argv);
  95 static int lfs_quota(int argc, char **argv);
  96 static int lfs_project(int argc, char **argv);
  97 #endif
  98 static int lfs_flushctx(int argc, char **argv);
  99 static int lfs_poollist(int argc, char **argv);
 100 static int lfs_changelog(int argc, char **argv);
 101 static int lfs_changelog_clear(int argc, char **argv);
 102 static int lfs_fid2path(int argc, char **argv);
 103 static int lfs_path2fid(int argc, char **argv);
 104 static int lfs_rmfid(int argc, char **argv);
 105 static int lfs_data_version(int argc, char **argv);
 106 static int lfs_hsm_state(int argc, char **argv);
 107 static int lfs_hsm_set(int argc, char **argv);
 108 static int lfs_hsm_clear(int argc, char **argv);
 109 static int lfs_hsm_action(int argc, char **argv);
 110 static int lfs_hsm_archive(int argc, char **argv);
 111 static int lfs_hsm_restore(int argc, char **argv);
 112 static int lfs_hsm_release(int argc, char **argv);
 113 static int lfs_hsm_remove(int argc, char **argv);
 114 static int lfs_hsm_cancel(int argc, char **argv);
 115 static int lfs_swap_layouts(int argc, char **argv);
 116 static int lfs_mv(int argc, char **argv);
 117 static int lfs_ladvise(int argc, char **argv);
 118 static int lfs_getsom(int argc, char **argv);
 119 static int lfs_heat_get(int argc, char **argv);
 120 static int lfs_heat_set(int argc, char **argv);
 121 static int lfs_mirror(int argc, char **argv);
 122 static int lfs_mirror_list_commands(int argc, char **argv);
 123 static int lfs_list_commands(int argc, char **argv);
 124 static inline int lfs_mirror_resync(int argc, char **argv);
 125 static inline int lfs_mirror_verify(int argc, char **argv);
 126 static inline int lfs_mirror_read(int argc, char **argv);
 127 static inline int lfs_mirror_write(int argc, char **argv);
 128 static inline int lfs_mirror_copy(int argc, char **argv);
 129 static int lfs_pcc_attach(int argc, char **argv);
 130 static int lfs_pcc_attach_fid(int argc, char **argv);
 131 static int lfs_pcc_detach(int argc, char **argv);
 132 static int lfs_pcc_detach_fid(int argc, char **argv);
 133 static int lfs_pcc_state(int argc, char **argv);
 134 static int lfs_pcc(int argc, char **argv);
 135 static int lfs_pcc_list_commands(int argc, char **argv);
 136 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
 137                               __u64 migration_flags);
 138
 139 struct pool_to_id_cbdata {
 140         const char *pool;
 141         __u32 id;
 142 };
 143 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata);
 144 static int find_mirror_id_by_pool(struct llapi_layout *layout, void *cbdata);
 145
 146 enum setstripe_origin {
 147         SO_SETSTRIPE,
 148         SO_MIGRATE,
 149         SO_MIGRATE_MDT,
 150         SO_MIRROR_CREATE,
 151         SO_MIRROR_EXTEND,
 152         SO_MIRROR_SPLIT,
 153         SO_MIRROR_DELETE,
 154 };
 155
 156 static int lfs_setstripe_internal(int argc, char **argv,
 157                                   enum setstripe_origin opc);
 158
 159 static inline int lfs_setstripe(int argc, char **argv)
 160 {
 161         return lfs_setstripe_internal(argc, argv, SO_SETSTRIPE);
 162 }
 163
 164 static inline int lfs_setstripe_migrate(int argc, char **argv)
 165 {
 166         return lfs_setstripe_internal(argc, argv, SO_MIGRATE);
 167 }
 168
 169 static inline int lfs_mirror_create(int argc, char **argv)
 170 {
 171         return lfs_setstripe_internal(argc, argv, SO_MIRROR_CREATE);
 172 }
 173
 174 static inline int lfs_mirror_extend(int argc, char **argv)
 175 {
 176         return lfs_setstripe_internal(argc, argv, SO_MIRROR_EXTEND);
 177 }
 178
 179 static inline int lfs_mirror_split(int argc, char **argv)
 180 {
 181         return lfs_setstripe_internal(argc, argv, SO_MIRROR_SPLIT);
 182 }
 183
 184 static inline int lfs_mirror_delete(int argc, char **argv)
 185 {
 186         return lfs_setstripe_internal(argc, argv, SO_MIRROR_DELETE);
 187 }
 188
 189 /* Setstripe and migrate share mostly the same parameters */
 190 #define SSM_CMD_COMMON(cmd) \
 191         "usage: "cmd" [--component-end|-E COMP_END]\n"                  \
 192         "                 [--copy=LUSTRE_SRC]\n"                        \
 193         "                 [--extension-size|--ext-size|-z SIZE]\n"      \
 194         "                 [--help|-h] [--layout|-L PATTERN]\n"          \
 195         "                 [--layout|-L PATTERN]\n"                      \
 196         "                 [--mirror-count|-N[MIRROR_COUNT]]\n"          \
 197         "                 [--ost|-o OST_INDICES]\n"                     \
 198         "                 [--overstripe-count|-C STRIPE_COUNT]\n"       \
 199         "                 [--pool|-p POOL_NAME]\n"                      \
 200         "                 [--stripe-count|-c STRIPE_COUNT]\n"           \
 201         "                 [--stripe-index|-i START_OST_IDX]\n"          \
 202         "                 [--stripe-size|-S STRIPE_SIZE]\n"             \
 203         "                 [--yaml|-y YAML_TEMPLATE_FILE]\n"
 204
 205 #define MIRROR_EXTEND_USAGE                                             \
 206         "                 {--mirror-count|-N[MIRROR_COUNT]}\n"          \
 207         "                 [SETSTRIPE_OPTIONS|-f|--file VICTIM_FILE]\n"  \
 208         "                 [--no-verify]\n"
 209
 210 #define SETSTRIPE_USAGE                                                 \
 211         SSM_CMD_COMMON("setstripe")                                     \
 212         MIRROR_EXTEND_USAGE                                             \
 213         "                 DIRECTORY|FILENAME\n"
 214
 215 #define MIGRATE_USAGE                                                   \
 216         SSM_CMD_COMMON("migrate  ")                                     \
 217         "                 [--block|-b] [--non-block|-n]\n"              \
 218         "                 [--non-direct|-D] [--verbose|-v]\n"           \
 219         "                 FILENAME\n"
 220
 221 #define SETDIRSTRIPE_USAGE                                              \
 222         "               [--mdt-count|-c stripe_count>\n"                \
 223         "               [--help|-h] [--mdt-hash|-H mdt_hash]\n"         \
 224         "               [--mdt-index|-i mdt_index[,mdt_index,...]\n"    \
 225         "               [--default|-D] [--mode|-o mode]\n"              \
 226         "               [--max-inherit|-X max_inherit]\n"               \
 227         "               [--max-inherit-rr max_inherit_rr] <dir>\n"      \
 228         "To create dir with a foreign (free format) layout :\n"         \
 229         "setdirstripe|mkdir --foreign[=FOREIGN_TYPE] -x|-xattr STRING " \
 230         "               [--mode|-o MODE] [--flags HEX] DIRECTORY\n"
 231
 232 /**
 233  * command_t mirror_cmdlist - lfs mirror commands.
 234  */
 235 command_t mirror_cmdlist[] = {
 236         { .pc_name = "create", .pc_func = lfs_mirror_create,
 237           .pc_help = "Create a mirrored file.\n"
 238                 "usage: lfs mirror create --mirror-count|-N[MIRROR_COUNT]\n"
 239                 "           [SETSTRIPE_OPTIONS] ... FILENAME|DIRECTORY ...\n" },
 240         { .pc_name = "delete", .pc_func = lfs_mirror_delete,
 241           .pc_help = "Delete a mirror from a file.\n"
 242         "usage: lfs mirror delete {--mirror-id <mirror_id> |\n"
 243         "\t               --component-id|--comp-id|-I COMP_ID |\n"
 244         "\t               -p <pool>} MIRRORED_FILE ...\n"
 245         },
 246         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 247           .pc_help = "Extend a mirrored file.\n"
 248                 "usage: lfs mirror extend "
 249                 "{--mirror-count|-N[MIRROR_COUNT]} [--no-verify] "
 250                 "[SETSTRIPE_OPTIONS|-f VICTIM_FILE] ... FILENAME ...\n" },
 251         { .pc_name = "split", .pc_func = lfs_mirror_split,
 252           .pc_help = "Split a mirrored file.\n"
 253         "usage: lfs mirror split {--mirror-id MIRROR_ID |\n"
 254         "\t             --component-id|-I COMP_ID|-p POOL} [--destroy|-d]\n"
 255         "\t             [-f NEW_FILE] MIRRORED_FILE ...\n" },
 256         { .pc_name = "read", .pc_func = lfs_mirror_read,
 257           .pc_help = "Read the content of a specified mirror of a file.\n"
 258                 "usage: lfs mirror read {--mirror-id|-N MIRROR_ID}\n"
 259                 "\t\t[--outfile|-o <output_file>] <mirrored_file>\n" },
 260         { .pc_name = "write", .pc_func = lfs_mirror_write,
 261           .pc_help = "Write to a specified mirror of a file.\n"
 262                 "usage: lfs mirror write {--mirror-id|-N MIRROR_ID}\n"
 263                 "\t\t[--inputfile|-i <input_file>] <mirrored_file>\n" },
 264         { .pc_name = "copy", .pc_func = lfs_mirror_copy,
 265           .pc_help = "Copy a specified mirror to other mirror(s) of a file.\n"
 266                 "usage: lfs mirror copy {--read-mirror|-i MIRROR_ID0}\n"
 267                 "\t\t{--write-mirror|-o MIRROR_ID1[,...]} <mirrored_file>\n" },
 268         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 269           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 270                 "usage: lfs mirror resync [--only MIRROR_ID[,...]>]\n"
 271                 "\t\t<mirrored_file> [<mirrored_file2>...]\n" },
 272         { .pc_name = "verify", .pc_func = lfs_mirror_verify,
 273           .pc_help = "Verify mirrored file(s).\n"
 274                 "usage: lfs mirror verify [--only MIRROR_ID[,...]]\n"
 275                 "\t\t[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n" },
 276         { .pc_name = "list-commands", .pc_func = lfs_mirror_list_commands,
 277           .pc_help = "list commands supported by lfs mirror"},
 278         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 279         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 280         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 281         { .pc_help = NULL }
 282 };
 283
 284 /**
 285  * command_t pcc_cmdlist - lfs pcc commands.
 286  */
 287 command_t pcc_cmdlist[] = {
 288         { .pc_name = "attach", .pc_func = lfs_pcc_attach,
 289           .pc_help = "Attach given files to the Persistent Client Cache.\n"
 290                 "usage: lfs pcc attach <--id|-i NUM> <file> ...\n"
 291                 "\t-i: archive id for RW-PCC\n" },
 292         { .pc_name = "attach_fid", .pc_func = lfs_pcc_attach_fid,
 293           .pc_help = "Attach given files into PCC by FID(s).\n"
 294                 "usage: lfs pcc attach_id {--id|-i NUM} {--mnt|-m MOUNTPOINT} FID ...\n"
 295                 "\t-i: archive id for RW-PCC\n"
 296                 "\t-m: Lustre mount point\n" },
 297         { .pc_name = "state", .pc_func = lfs_pcc_state,
 298           .pc_help = "Display the PCC state for given files.\n"
 299                 "usage: lfs pcc state <file> ...\n" },
 300         { .pc_name = "detach", .pc_func = lfs_pcc_detach,
 301           .pc_help = "Detach given files from the Persistent Client Cache.\n"
 302                 "usage: lfs pcc detach <file> ...\n" },
 303         { .pc_name = "detach_fid", .pc_func = lfs_pcc_detach_fid,
 304           .pc_help = "Detach given files from PCC by FID(s).\n"
 305                 "usage: lfs pcc detach_fid <mntpath> <fid>...\n" },
 306         { .pc_name = "list-commands", .pc_func = lfs_pcc_list_commands,
 307           .pc_help = "list commands supported by lfs pcc"},
 308         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 309         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 310         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 311         { .pc_help = NULL }
 312 };
 313
 314 /* all available commands */
 315 command_t cmdlist[] = {
 316         {"setstripe", lfs_setstripe, 0,
 317          "To create a file with specified striping/composite layout, or\n"
 318          "create/replace the default layout on an existing directory:\n"
 319          SSM_CMD_COMMON("setstripe")
 320          "                 [--mode MODE]\n"
 321          "                 <directory|filename>\n"
 322          " or\n"
 323          "To add component(s) to an existing composite file:\n"
 324          SSM_CMD_COMMON("setstripe --component-add")
 325          "To totally delete the default striping from an existing directory:\n"
 326          "usage: setstripe [--delete|-d] <directory>\n"
 327          " or\n"
 328          "To create a mirrored file or set s default mirror layout on a directory:\n"
 329          "usage: setstripe {--mirror-count|-N}[MIRROR_COUNT] [SETSTRIPE_OPTIONS] <directory|filename>\n"
 330          " or\n"
 331          "To delete the last component(s) from an existing composite file\n"
 332          "(note that this will also delete any data in those components):\n"
 333          "usage: setstripe --component-del [--component-id|-I COMP_ID]\n"
 334          "                               [--component-flags|-F COMP_FLAGS]\n"
 335          "                               <filename>\n"
 336          "\tCOMP_ID:     Unique component ID to delete\n"
 337          "\tCOMP_FLAGS:  'init' indicating all instantiated components\n"
 338          "\t             '^init' indicating all uninstantiated components\n"
 339          "\t-I and -F cannot be specified at the same time\n"
 340          " or\n"
 341          "To set or clear flags on a specific component\n"
 342          "(note that this command can only be applied to mirrored files:\n"
 343          "usage: setstripe --comp-set {-I COMP_ID|--comp-flags=COMP_FLAGS}\n"
 344          "                            <filename>\n"
 345          " or\n"
 346          "To create a file with a foreign (free format) layout:\n"
 347          "usage: setstripe --foreign[=FOREIGN_TYPE]\n"
 348          "                 --xattr|-x LAYOUT_STRING [--flags HEX]\n"
 349          "                 [--mode MODE] <filename>\n"},
 350         {"getstripe", lfs_getstripe, 0,
 351          "To list the layout pattern for a given file or files in a\n"
 352          "directory or recursively for all files in a directory tree.\n"
 353          "usage: getstripe [--ost|-O UUID] [--quiet|-q] [--verbose|-v]\n"
 354          "                 [--stripe-count|-c] [--stripe-index|-i] [--fid|-F]\n"
 355          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 356          "                 [--mdt-index|-m] [--recursive|-r] [--raw|-R]\n"
 357          "                 [--layout|-L] [--generation|-g] [--yaml|-y]\n"
 358          "                 [--help|-h] [--component-id|-I[=COMP_ID]]\n"
 359          "                 [--component-flags[=COMP_FLAGS]]\n"
 360          "                 [--component-count]\n"
 361          "                 [--extension-size|--ext-size|-z]\n"
 362          "                 [--component-start[=[+-]COMP_START]]\n"
 363          "                 [--component-end[=[+-]COMP_END]|-E[[+-]comp_end]]\n"
 364          "                 [[!] --mirror-index=[+-]INDEX |\n"
 365          "                 [!] --mirror-id=[+-]MIRROR_ID] [--mirror-count|-N]\n"
 366          "                 <directory|filename> ..."},
 367         {"setdirstripe", lfs_setdirstripe, 0,
 368          "Create striped directory on specified MDT, same as mkdir.\n"
 369          "May be restricted to root or group users, depending on settings.\n"
 370          "usage: setdirstripe [OPTION] <directory>\n"
 371          SETDIRSTRIPE_USAGE},
 372         {"getdirstripe", lfs_getdirstripe, 0,
 373          "To list the layout pattern info for a given directory\n"
 374          "or recursively for all directories in a directory tree.\n"
 375          "usage: getdirstripe [--mdt-count|-c] [--mdt-index|-m|-i]\n"
 376          "                    [--help|-h] [--mdt-hash|-H] [--obd|-O UUID]\n"
 377          "                    [--recursive|-r] [--yaml|-y]\n"
 378          "                    [--verbose|-v] [--default|-D]\n"
 379          "                    [--max-inherit|-X]\n"
 380          "                    [--max-inherit-rr] <dir> ..."},
 381         {"mkdir", lfs_setdirstripe, 0,
 382          "Create striped directory on specified MDT, same as setdirstripe.\n"
 383          "usage: mkdir [OPTION] <directory>\n"
 384          SETDIRSTRIPE_USAGE},
 385         {"rm_entry", lfs_rmentry, 0,
 386          "To remove the name entry of the remote directory. Note: This\n"
 387          "command will only delete the name entry, i.e. the remote directory\n"
 388          "will become inaccessable after this command. This can only be done\n"
 389          "by the administrator\n"
 390          "usage: rm_entry <dir>\n"},
 391         {"unlink_foreign", lfs_unlink_foreign, 0,
 392          "To remove the foreign file/dir.\n"
 393          "Note: This is for files/dirs prevented to be removed using\n"
 394          "unlink/rmdir, but works also for regular ones\n"
 395          "usage: unlink_foreign <foreign_dir/file> [<foreign_dir/file> ...]\n"},
 396         {"pool_list", lfs_poollist, 0,
 397          "List pools or pool OSTs\n"
 398          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 399         {"find", lfs_find, 0,
 400          "find files matching given attributes recursively in directory tree.\n"
 401          "usage: find <directory|filename> ...\n"
 402          "     [[!] --atime|-A [+-]N[smhdwy]] [[!] --btime|-B [+-]N[smhdwy]]\n"
 403          "     [[!] --ctime|-C [+-]N[smhdwy]] [[!] --mtime|-M [+-]N[smhdwy]]\n"
 404          "     [[!] --blocks|-b N] [[!] --component-count [+-]<comp_cnt>]\n"
 405          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 406          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 407          "     [[!] --component-flags {init,stale,prefer,offline,nosync,extension}]\n"
 408          "     [[!] --extension-size|--ext-size|-z [+-]N[kMGT]]\n"
 409          "     [[!] --foreign[=<foreign_type>]]\n"
 410          "     [[!] --gid|-g|--group|-G <gid>|<gname>] [--help|-h]\n"
 411          "     [[!] --layout|-L released,raid0,mdt] [--lazy]\n"
 412          "     [--maxdepth|-D N] [[!] --mdt-count|-T [+-]<stripes>]\n"
 413          "     [[!] --mdt-hash|-H <[^][blm],[^]fnv_1a_64,all_char,crush,...>\n"
 414          "     [[!] --mdt-index|--mdt|-m <uuid|index,...>]\n"
 415          "     [[!] --mirror-count|-N [+-]<n>]\n"
 416          "     [[!] --mirror-state <[^]state>]\n"
 417          "     [[!] --name|-n <pattern>] [[!] --newer[XY] <reference>]\n"
 418          "     [[!] --ost|-O <uuid|index,...>] [[!] --perm [/-]mode]\n"
 419          "     [[!] --pool <pool>] [--print|-P] [--print0|-0] [--printf <format>]\n"
 420          "     [[!] --projid <projid>] [[!] --size|-s [+-]N[bkMGTPE]]\n"
 421          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 422          "     [[!] --stripe-index|-i <index,...>]\n"
 423          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 424          "     [[!] --uid|-u|--user|-U <uid>|<uname>]\n"
 425          "\t !: used before an option indicates 'NOT' requested attribute\n"
 426          "\t -: used before a value indicates less than requested value\n"
 427          "\t +: used before a value indicates more than requested value\n"
 428          "\t ^: used before a flag indicates to exclude it\n"},
 429         {"check", lfs_check, 0,
 430          "Display the status of MGTs, MDTs or OSTs (as specified in the command)\n"
 431          "or all the servers (MGTs, MDTs and OSTs).\n"
 432          "usage: check {mgts|osts|mdts|all}"},
 433         {"osts", lfs_osts, 0, "list OSTs connected to client "
 434          "[for specified path only]\n" "usage: osts [path]"},
 435         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 436          "[for specified path only]\n" "usage: mdts [path]"},
 437         {"df", lfs_df, 0,
 438          "report filesystem disk space usage or inodes usage "
 439          "of each MDS and all OSDs or a batch belonging to a specific pool.\n"
 440          "Usage: df [--inodes|-i] [--human-readable|-h] [--lazy|-l]\n"
 441          "          [--pool|-p <fsname>[.<pool>]] [path]"},
 442         {"getname", lfs_getname, 0,
 443          "list instances and specified mount points [for specified path only]\n"
 444          "Usage: getname [--help|-h] [--instance|-i] [--fsname|-n] [path ...]"},
 445 #ifdef HAVE_SYS_QUOTA_H
 446         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 447          "usage: setquota [-t][-d] {-u|-U|-g|-G|-p|-P} {-b|-B|-i|-I LIMIT} [--pool POOL] FILESYSTEM"},
 448         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 449          "usage: quota [-q] [-v] [-h] [-o OBD_UUID|-i MDT_IDX|-I OST_IDX]\n"
 450          "             [{-u|-g|-p} UNAME|UID|GNAME|GID|PROJID]\n"
 451          "             [--pool <OST pool name>] <filesystem>\n"
 452          "       quota -t <-u|-g|-p> [--pool <OST pool name>] <filesystem>\n"
 453          "       quota [-q] [-v] [h] {-U|-G|-P} [--pool <OST pool name>] <filesystem>"},
 454         {"project", lfs_project, 0,
 455          "Change or list project attribute for specified file or directory.\n"
 456          "usage: project [-d|-r] <file|directory...>\n"
 457          "         list project ID and flags on file(s) or directories\n"
 458          "       project [-p id] [-s] [-r] <file|directory...>\n"
 459          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 460          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 461          "         check project ID and flags on file(s) or directories, print outliers\n"
 462          "       project -C [-r] [-k] <file|directory...>\n"
 463          "         clear the project inherit flag and ID on the file or directory\n"
 464         },
 465 #endif
 466         {"flushctx", lfs_flushctx, 0,
 467          "Flush security context for current user.\n"
 468          "usage: flushctx [-k] [-r] [mountpoint...]"},
 469         {"changelog", lfs_changelog, 0,
 470          "Show the metadata changes on an MDT."
 471          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 472         {"changelog_clear", lfs_changelog_clear, 0,
 473          "Indicate that old changelog records up to <endrec> are no longer of "
 474          "interest to consumer <id>, allowing the system to free up space.\n"
 475          "An <endrec> of 0 means all records.\n"
 476          "usage: changelog_clear <mdtname> <id> <endrec>"},
 477         {"fid2path", lfs_fid2path, 0,
 478          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 479          "specify link number <linkno>.\n"
 480          "usage: fid2path [--print-fid|-f] [--print-link|-c] [--link|-l <linkno>] "
 481          "<fsname|root> <fid>..."},
 482         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 483          "usage: path2fid [--parents] <path> ..."},
 484         {"rmfid", lfs_rmfid, 0, "Remove file(s) by FID(s)\n"
 485          "usage: rmfid <fsname|rootpath> <fid> ..."},
 486         {"data_version", lfs_data_version, 0, "Display file data version for "
 487          "a given path.\n" "usage: data_version [-n|-r|-w] <path>"},
 488         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 489          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 490         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 491          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 492          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 493         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 494          "files.\n"
 495          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 496          "[--archived] [--lost] <file> ..."},
 497         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 498          "given files.\n" "usage: hsm_action <file> ..."},
 499         {"hsm_archive", lfs_hsm_archive, 0,
 500          "Archive file to external storage.\n"
 501          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 502          "<file> ..."},
 503         {"hsm_restore", lfs_hsm_restore, 0,
 504          "Restore file from external storage.\n"
 505          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 506         {"hsm_release", lfs_hsm_release, 0,
 507          "Release files from Lustre.\n"
 508          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 509         {"hsm_remove", lfs_hsm_remove, 0,
 510          "Remove file copy from external storage.\n"
 511          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 512          "[--archive NUM]\n"
 513          "                  (FILE [FILE ...] | "
 514          "--mntpath MOUNTPATH FID [FID ...])\n"
 515          "\n"
 516          "Note: To remove an archived copy of a file already deleted from a "
 517          "Lustre FS, the\n"
 518          "--mntpath option and a list of FIDs must be specified"
 519         },
 520         {"hsm_cancel", lfs_hsm_cancel, 0,
 521          "Cancel requests related to specified files.\n"
 522          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 523         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 524          "usage: swap_layouts <path1> <path2>"},
 525         {"migrate", lfs_setstripe_migrate, 0,
 526          "migrate directories and their inodes between MDTs.\n"
 527          "usage: migrate [--mdt-count|-c STRIPE_COUNT] [--directory|-d]\n"
 528          "               [--mdt-hash|-H HASH_TYPE]\n"
 529          "               [--mdt-index|-m START_MDT_INDEX] [--verbose|-v]\n"
 530          "               DIRECTORY\n"
 531          "\n"
 532          "migrate file objects from one OST layout to another\n"
 533          "(may be not safe with concurent writes).\n"
 534          MIGRATE_USAGE },
 535         {"mv", lfs_mv, 0,
 536          "To move directories between MDTs. This command is deprecated, "
 537          "use \"migrate\" instead.\n"
 538          "usage: mv <directory|filename> [--mdt-index|-m MDT_INDEX] "
 539          "[--verbose|-v]\n"},
 540         {"ladvise", lfs_ladvise, 0,
 541          "Provide servers with advice about access patterns for a file.\n"
 542          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 543          "               [--background|-b] [--unset|-u]\n\n"
 544          "               {--end|-e END[kMGT]|--length|-l LENGTH[kMGT]}\n"
 545          "               {[--mode|-m [READ,WRITE]}\n"
 546          "               <file> ...\n"},
 547         {"mirror", lfs_mirror, mirror_cmdlist,
 548          "lfs commands used to manage files with mirrored components:\n"
 549          "lfs mirror create - create a mirrored file or directory\n"
 550          "lfs mirror extend - add mirror(s) to an existing file\n"
 551          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 552          "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
 553          "lfs mirror read   - read a mirror content of a mirrored file\n"
 554          "lfs mirror write  - write to a mirror of a mirrored file\n"
 555          "lfs mirror copy   - copy a mirror to other mirror(s) of a file\n"
 556          "lfs mirror verify - verify mirrored file(s)\n"},
 557         {"getsom", lfs_getsom, 0, "To list the SOM info for a given file.\n"
 558          "usage: getsom [-s] [-b] [-f] <path>\n"
 559          "\t-s: Only show the size value of the SOM data for a given file\n"
 560          "\t-b: Only show the blocks value of the SOM data for a given file\n"
 561          "\t-f: Only show the flags value of the SOM data for a given file\n"},
 562         {"heat_get", lfs_heat_get, 0,
 563          "To get heat of files.\n"
 564          "usage: heat_get <file> ...\n"},
 565         {"heat_set", lfs_heat_set, 0,
 566          "To set heat flags of files.\n"
 567          "usage: heat_set [--clear|-c] [--off|-o] [--on|-O] <file> ...\n"
 568          "\t--clear|-c: Clear file heat for given files\n"
 569          "\t--off|-o:   Turn off file heat for given files\n"
 570          "\t--on|-O:    Turn on file heat for given files\n"},
 571         {"pcc", lfs_pcc, pcc_cmdlist,
 572          "lfs commands used to interact with PCC features:\n"
 573          "lfs pcc attach - attach given files to Persistent Client Cache\n"
 574          "lfs pcc attach_fid - attach given files into PCC by FID(s)\n"
 575          "lfs pcc state  - display the PCC state for given files\n"
 576          "lfs pcc detach - detach given files from Persistent Client Cache\n"
 577          "lfs pcc detach_fid - detach given files from PCC by FID(s)\n"},
 578         {"help", Parser_help, 0, "help"},
 579         {"exit", Parser_quit, 0, "quit"},
 580         {"quit", Parser_quit, 0, "quit"},
 581         {"--version", Parser_version, 0,
 582          "output build version of the utility and exit"},
 583         {"--list-commands", lfs_list_commands, 0,
 584          "list commands supported by the utility and exit"},
 585         { 0, 0, 0, NULL }
 586 };
 587
 588 static int check_hashtype(const char *hashtype)
 589 {
 590         int type_num = atoi(hashtype);
 591         int i;
 592
 593         /* numeric hash type */
 594         if (hashtype && strlen(hashtype) == 1 &&
 595             (type_num > 0 && type_num < LMV_HASH_TYPE_MAX))
 596                 return type_num;
 597         /* string hash type */
 598         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 599                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 600                         return i;
 601
 602         return 0;
 603 }
 604
 605 static uint32_t check_foreign_type_name(const char *foreign_type_name)
 606 {
 607         uint32_t i;
 608
 609         for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
 610                 if (!lu_foreign_types[i].lft_name)
 611                         break;
 612                 if (strcmp(foreign_type_name,
 613                            lu_foreign_types[i].lft_name) == 0)
 614                         return lu_foreign_types[i].lft_type;
 615         }
 616
 617         return LU_FOREIGN_TYPE_UNKNOWN;
 618 }
 619
 620 static const char *error_loc = "syserror";
 621
 622 static int
 623 migrate_open_files(const char *name, __u64 migration_flags,
 624                    const struct llapi_stripe_param *param,
 625                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 626 {
 627         int                      fd = -1;
 628         int                      fdv = -1;
 629         int                      rflags;
 630         int                      mdt_index;
 631         int                      random_value;
 632         char                     parent[PATH_MAX];
 633         char                     volatile_file[PATH_MAX];
 634         char                    *ptr;
 635         int                      rc;
 636         struct stat              st;
 637         struct stat              stv;
 638
 639         if (!param && !layout) {
 640                 error_loc = "layout information";
 641                 return -EINVAL;
 642         }
 643
 644         /* search for file directory pathname */
 645         if (strlen(name) > sizeof(parent) - 1) {
 646                 error_loc = "source file name";
 647                 return -ERANGE;
 648         }
 649
 650         strncpy(parent, name, sizeof(parent));
 651         ptr = strrchr(parent, '/');
 652         if (!ptr) {
 653                 if (!getcwd(parent, sizeof(parent))) {
 654                         error_loc = "getcwd";
 655                         return -errno;
 656                 }
 657         } else {
 658                 if (ptr == parent) /* leading '/' */
 659                         ptr = parent + 1;
 660                 *ptr = '\0';
 661         }
 662
 663         /* even if the file is only read, WR mode is nedeed to allow
 664          * layout swap on fd
 665          */
 666         /* Allow migrating even without the key on encrypted files */
 667         rflags = O_RDWR | O_NOATIME | O_FILE_ENC;
 668         if (!(migration_flags & LLAPI_MIGRATION_NONDIRECT))
 669                 rflags |= O_DIRECT;
 670 source_open:
 671         fd = open(name, rflags);
 672         if (fd < 0) {
 673                 /* If encrypted file without the key,
 674                  * retry mirror extend in O_DIRECT.
 675                  */
 676                 if (errno == ENOKEY && !(rflags & O_DIRECT) &&
 677                     migration_flags & LLAPI_MIGRATION_MIRROR) {
 678                         rflags |= O_DIRECT;
 679                         goto source_open;
 680                 }
 681                 rc = -errno;
 682                 error_loc = "cannot open source file";
 683                 return rc;
 684         }
 685
 686         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 687         if (rc < 0) {
 688                 error_loc = "cannot get MDT index";
 689                 goto out;
 690         }
 691
 692         do {
 693                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW |
 694                         /* Allow migrating without the key on encrypted files */
 695                         O_FILE_ENC;
 696                 mode_t open_mode = S_IRUSR | S_IWUSR;
 697
 698                 if (rflags & O_DIRECT)
 699                         open_flags |= O_DIRECT;
 700                 random_value = random();
 701                 rc = snprintf(volatile_file, sizeof(volatile_file),
 702                               "%s/%s:%.4X:%.4X:fd=%.2d", parent,
 703                               LUSTRE_VOLATILE_HDR, mdt_index,
 704                               random_value, fd);
 705                 if (rc >= sizeof(volatile_file)) {
 706                         rc = -ENAMETOOLONG;
 707                         break;
 708                 }
 709
 710                 /* create, open a volatile file, use caching (ie no directio) */
 711                 if (layout) {
 712                         /* Returns -1 and sets errno on error: */
 713                         fdv = llapi_layout_file_open(volatile_file, open_flags,
 714                                                      open_mode, layout);
 715                         if (fdv < 0)
 716                                 fdv = -errno;
 717                 } else {
 718                         /* Does the right thing on error: */
 719                         fdv = llapi_file_open_param(volatile_file, open_flags,
 720                                                     open_mode, param);
 721                 }
 722         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 723
 724         if (rc < 0) {
 725                 error_loc = "cannot create volatile file";
 726                 goto out;
 727         }
 728
 729         /*
 730          * In case the MDT does not support creation of volatile files
 731          * we should try to unlink it.
 732          */
 733         (void)unlink(volatile_file);
 734
 735         /*
 736          * Not-owner (root?) special case.
 737          * Need to set owner/group of volatile file like original.
 738          * This will allow to pass related check during layout_swap.
 739          */
 740         rc = fstat(fd, &st);
 741         if (rc != 0) {
 742                 rc = -errno;
 743                 error_loc = "cannot stat source file";
 744                 goto out;
 745         }
 746
 747         rc = fstat(fdv, &stv);
 748         if (rc != 0) {
 749                 rc = -errno;
 750                 error_loc = "cannot stat volatile";
 751                 goto out;
 752         }
 753
 754         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 755                 rc = fchown(fdv, st.st_uid, st.st_gid);
 756                 if (rc != 0) {
 757                         rc = -errno;
 758                         error_loc = "cannot change ownwership of volatile";
 759                         goto out;
 760                 }
 761         }
 762
 763 out:
 764         if (rc < 0) {
 765                 if (fd > 0)
 766                         close(fd);
 767                 if (fdv > 0)
 768                         close(fdv);
 769         } else {
 770                 *fd_src = fd;
 771                 *fd_tgt = fdv;
 772                 error_loc = NULL;
 773         }
 774         return rc;
 775 }
 776
 777 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 778 {
 779         struct llapi_layout *layout;
 780         size_t buf_size = 4 * 1024 * 1024;
 781         void *buf = NULL;
 782         off_t pos = 0;
 783         off_t data_end = 0;
 784         size_t page_size = sysconf(_SC_PAGESIZE);
 785         bool sparse;
 786         int rc;
 787
 788         layout = llapi_layout_get_by_fd(fd_src, 0);
 789         if (layout) {
 790                 uint64_t stripe_size;
 791
 792                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 793                 if (rc == 0)
 794                         buf_size = stripe_size;
 795
 796                 llapi_layout_free(layout);
 797         }
 798
 799         /* Use a page-aligned buffer for direct I/O */
 800         rc = posix_memalign(&buf, page_size, buf_size);
 801         if (rc != 0)
 802                 return -rc;
 803
 804         sparse = llapi_file_is_sparse(fd_src);
 805         if (sparse) {
 806                 rc = ftruncate(fd_dst, pos);
 807                 if (rc < 0) {
 808                         rc = -errno;
 809                         return rc;
 810                 }
 811         }
 812
 813         while (1) {
 814                 off_t data_off;
 815                 size_t to_read, to_write;
 816                 ssize_t rsize;
 817
 818                 if (sparse && pos >= data_end) {
 819                         size_t data_size;
 820
 821                         data_off = llapi_data_seek(fd_src, pos, &data_size);
 822                         if (data_off < 0) {
 823                                 /* Non-fatal, switch to full copy */
 824                                 sparse = false;
 825                                 continue;
 826                         }
 827                         /* hole at the end of file, truncate up to it */
 828                         if (!data_size) {
 829                                 rc = ftruncate(fd_dst, data_off);
 830                                 if (rc < 0)
 831                                         goto out;
 832                         }
 833                         pos = data_off & ~(page_size - 1);
 834                         data_end = data_off + data_size;
 835                         to_read = ((data_end - pos - 1) | (page_size - 1)) + 1;
 836                         to_read = MIN(to_read, buf_size);
 837                 } else {
 838                         to_read = buf_size;
 839                 }
 840
 841                 if (check_file) {
 842                         rc = check_file(fd_src);
 843                         if (rc < 0)
 844                                 goto out;
 845                 }
 846
 847                 rsize = pread(fd_src, buf, to_read, pos);
 848                 if (rsize < 0) {
 849                         rc = -errno;
 850                         goto out;
 851                 }
 852                 /* EOF */
 853                 if (rsize == 0)
 854                         break;
 855
 856                 to_write = rsize;
 857                 while (to_write > 0) {
 858                         ssize_t written;
 859
 860                         written = pwrite(fd_dst, buf, to_write, pos);
 861                         if (written < 0) {
 862                                 rc = -errno;
 863                                 goto out;
 864                         }
 865                         pos += written;
 866                         to_write -= written;
 867                 }
 868                 if (rc || rsize < to_read)
 869                         break;
 870         }
 871
 872         rc = fsync(fd_dst);
 873         if (rc < 0)
 874                 rc = -errno;
 875 out:
 876         /* Try to avoid page cache pollution after migration. */
 877         (void)posix_fadvise(fd_src, 0, 0, POSIX_FADV_DONTNEED);
 878         (void)posix_fadvise(fd_dst, 0, 0, POSIX_FADV_DONTNEED);
 879
 880         free(buf);
 881         return rc;
 882 }
 883
 884 static int migrate_set_timestamps(int fd, const struct stat *st)
 885 {
 886         struct timeval tv[2] = {
 887                 {.tv_sec = st->st_atime},
 888                 {.tv_sec = st->st_mtime}
 889         };
 890
 891         return futimes(fd, tv);
 892 }
 893
 894 static int migrate_block(int fd, int fdv)
 895 {
 896         struct stat st;
 897         __u64   dv1;
 898         int     gid;
 899         int     rc;
 900         int     rc2;
 901
 902         rc = fstat(fd, &st);
 903         if (rc < 0) {
 904                 error_loc = "cannot stat source file";
 905                 return -errno;
 906         }
 907
 908         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 909         if (rc < 0) {
 910                 error_loc = "cannot get dataversion";
 911                 return rc;
 912         }
 913
 914         do
 915                 gid = random();
 916         while (gid == 0);
 917
 918         /*
 919          * The grouplock blocks all concurrent accesses to the file.
 920          * It has to be taken after llapi_get_data_version as it would
 921          * block it too.
 922          */
 923         rc = llapi_group_lock(fd, gid);
 924         if (rc < 0) {
 925                 error_loc = "cannot get group lock";
 926                 return rc;
 927         }
 928
 929         rc = migrate_copy_data(fd, fdv, NULL);
 930         if (rc < 0) {
 931                 error_loc = "data copy failed";
 932                 goto out_unlock;
 933         }
 934
 935         /* Make sure we keep original atime/mtime values */
 936         rc = migrate_set_timestamps(fdv, &st);
 937         if (rc < 0) {
 938                 error_loc = "set target file timestamp failed";
 939                 goto out_unlock;
 940         }
 941
 942         /*
 943          * swap layouts
 944          * for a migration we need to check data version on file did
 945          * not change.
 946          *
 947          * Pass in gid=0 since we already own grouplock.
 948          */
 949         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
 950                                            SWAP_LAYOUTS_CHECK_DV1);
 951         if (rc == -EAGAIN) {
 952                 error_loc = "file changed";
 953                 goto out_unlock;
 954         } else if (rc < 0) {
 955                 error_loc = "cannot swap layout";
 956                 goto out_unlock;
 957         }
 958
 959 out_unlock:
 960         rc2 = llapi_group_unlock(fd, gid);
 961         if (rc2 < 0 && rc == 0) {
 962                 error_loc = "unlock group lock";
 963                 rc = rc2;
 964         }
 965
 966         return rc;
 967 }
 968
 969 /**
 970  * Internal helper for migrate_copy_data(). Check lease and report error if
 971  * need be.
 972  *
 973  * \param[in]  fd           File descriptor on which to check the lease.
 974  *
 975  * \retval 0       Migration can keep on going.
 976  * \retval -errno  Error occurred, abort migration.
 977  */
 978 static int check_lease(int fd)
 979 {
 980         int rc;
 981
 982         rc = llapi_lease_check(fd);
 983         if (rc > 0)
 984                 return 0; /* llapi_check_lease returns > 0 on success. */
 985
 986         return -EBUSY;
 987 }
 988
 989 static int migrate_nonblock(int fd, int fdv)
 990 {
 991         struct stat st;
 992         __u64   dv1;
 993         __u64   dv2;
 994         int     rc;
 995
 996         rc = fstat(fd, &st);
 997         if (rc < 0) {
 998                 error_loc = "cannot stat source file";
 999                 return -errno;
1000         }
1001
1002         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
1003         if (rc < 0) {
1004                 error_loc = "cannot get data version";
1005                 return rc;
1006         }
1007
1008         rc = migrate_copy_data(fd, fdv, check_lease);
1009         if (rc < 0) {
1010                 error_loc = "data copy failed";
1011                 return rc;
1012         }
1013
1014         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
1015         if (rc != 0) {
1016                 error_loc = "cannot get data version";
1017                 return rc;
1018         }
1019
1020         if (dv1 != dv2) {
1021                 rc = -EAGAIN;
1022                 error_loc = "source file changed";
1023                 return rc;
1024         }
1025
1026         /* Make sure we keep original atime/mtime values */
1027         rc = migrate_set_timestamps(fdv, &st);
1028         if (rc < 0) {
1029                 error_loc = "set target file timestamp failed";
1030                 return -errno;
1031         }
1032         return 0;
1033 }
1034
1035 static
1036 int lfs_layout_compid_by_pool(char *fname, const char *pool, int *comp_id)
1037 {
1038         struct pool_to_id_cbdata data = { .pool = pool };
1039         struct llapi_layout *layout = NULL;
1040         int rc;
1041
1042         layout = llapi_layout_get_by_path(fname, 0);
1043         if (!layout) {
1044                 fprintf(stderr,
1045                         "error %s: file '%s' couldn't get layout: rc=%d\n",
1046                         progname, fname, errno);
1047                 rc = -errno;
1048                 goto free_layout;
1049         }
1050         rc = llapi_layout_sanity_fsname_check(layout, fname, false, true);
1051         if (rc < 0) {
1052                 llapi_layout_sanity_perror(errno);
1053                 goto free_layout;
1054         }
1055         rc = llapi_layout_comp_iterate(layout, find_comp_id_by_pool, &data);
1056         if (rc < 0)
1057                 goto free_layout;
1058
1059         *comp_id = data.id;
1060         rc = 0;
1061
1062 free_layout:
1063         if (layout)
1064                 llapi_layout_free(layout);
1065         return rc;
1066 }
1067
1068 static int lfs_component_set(char *fname, int comp_id, const char *pool,
1069                              __u32 flags, __u32 neg_flags)
1070 {
1071         __u32 ids[2];
1072         __u32 flags_array[2];
1073         size_t count = 0;
1074         int rc;
1075
1076         if (!comp_id) {
1077                 if (pool == NULL) {
1078                         fprintf(stderr,
1079                                 "error %s: neither component id nor pool is specified\n",
1080                                 progname);
1081                         return -EINVAL;
1082                 }
1083                 rc = lfs_layout_compid_by_pool(fname, pool, &comp_id);
1084                 if (rc)
1085                         return rc;
1086         }
1087
1088         if (flags) {
1089                 ids[count] = comp_id;
1090                 flags_array[count] = flags;
1091                 ++count;
1092         }
1093
1094         if (neg_flags) {
1095                 if (neg_flags & LCME_FL_STALE) {
1096                         fprintf(stderr,
1097                                 "%s: cannot clear 'stale' flags from component. Please use lfs-mirror-resync(1) instead\n",
1098                                 progname);
1099                         return -EINVAL;
1100                 }
1101
1102                 ids[count] = comp_id;
1103                 flags_array[count] = neg_flags | LCME_FL_NEG;
1104                 ++count;
1105         }
1106
1107         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
1108         if (rc) {
1109                 if (errno == EUCLEAN) {
1110                         rc = -errno;
1111                         fprintf(stderr,
1112                                 "%s: cannot set 'stale' flag on component '%#x' of the last non-stale mirror of '%s'\n",
1113                                 progname, comp_id, fname);
1114                 } else {
1115                         fprintf(stderr,
1116                                 "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
1117                                 progname, comp_id, fname, flags, neg_flags);
1118                 }
1119         }
1120
1121         return rc;
1122 }
1123
1124 static int lfs_component_del(char *fname, __u32 comp_id,
1125                              __u32 flags, __u32 neg_flags)
1126 {
1127         int     rc = 0;
1128
1129         if (flags && neg_flags) {
1130                 fprintf(stderr,
1131                         "%s: cannot specify both positive and negative flags\n",
1132                         progname);
1133                 return -EINVAL;
1134         }
1135
1136         if (!flags && neg_flags)
1137                 flags = neg_flags | LCME_FL_NEG;
1138
1139         if (flags && comp_id) {
1140                 fprintf(stderr,
1141                         "%s: cannot specify component ID and flags at the same time\n",
1142                         progname);
1143                 return -EINVAL;
1144         }
1145
1146         if (!flags && !comp_id) {
1147                 fprintf(stderr,
1148                         "%s: neither flags nor component ID is specified\n",
1149                         progname);
1150                 return -EINVAL;
1151         }
1152
1153         if (flags) {
1154                 if (flags & ~LCME_KNOWN_FLAGS) {
1155                         fprintf(stderr,
1156                                 "%s setstripe: unknown flags %#x\n",
1157                                 progname, flags);
1158                         return -EINVAL;
1159                 }
1160         } else if (comp_id > LCME_ID_MAX) {
1161                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
1162                         progname, comp_id);
1163                 return -EINVAL;
1164         }
1165
1166         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
1167         if (rc)
1168                 fprintf(stderr,
1169                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
1170                         progname, comp_id, fname, strerror(errno));
1171         return rc;
1172 }
1173
1174 static int lfs_component_add(char *fname, struct llapi_layout *layout)
1175 {
1176         int     rc;
1177
1178         if (!layout)
1179                 return -EINVAL;
1180
1181         rc = llapi_layout_file_comp_add(fname, layout);
1182         if (rc)
1183                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1184                         fname, strerror(errno));
1185         return rc;
1186 }
1187
1188 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1189                                 struct llapi_layout *layout)
1190 {
1191         struct stat     st;
1192         int     fd;
1193
1194         if (!layout)
1195                 return -EINVAL;
1196
1197         fd = lstat(fname, &st);
1198         if (fd == 0 && S_ISDIR(st.st_mode))
1199                 open_flags = O_DIRECTORY | O_RDONLY;
1200
1201         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1202         if (fd < 0)
1203                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1204                         S_ISDIR(st.st_mode) ?
1205                                 "set default composite layout for" :
1206                                 "create composite file",
1207                         fname, strerror(errno));
1208         return fd;
1209 }
1210
1211 static int lfs_migrate(char *name, __u64 migration_flags,
1212                        struct llapi_stripe_param *param,
1213                        struct llapi_layout *layout)
1214 {
1215         struct llapi_layout *existing;
1216         uint64_t dom_new, dom_cur;
1217         int fd = -1;
1218         int fdv = -1;
1219         int rc;
1220
1221         rc = migrate_open_files(name, migration_flags, param, layout,
1222                                 &fd, &fdv);
1223         if (rc < 0)
1224                 goto out;
1225
1226         rc = llapi_layout_dom_size(layout, &dom_new);
1227         if (rc) {
1228                 error_loc = "cannot get new layout DoM size";
1229                 goto out;
1230         }
1231         /* special case for migration to DOM layout*/
1232         existing = llapi_layout_get_by_fd(fd, 0);
1233         if (!existing) {
1234                 error_loc = "cannot get existing layout";
1235                 goto out;
1236         }
1237
1238         rc = llapi_layout_dom_size(existing, &dom_cur);
1239         if (rc) {
1240                 error_loc = "cannot get current layout DoM size";
1241                 goto out;
1242         }
1243
1244         /*
1245          * if file has DoM layout already then migration is possible to
1246          * the new layout with the same DoM component via swap layout,
1247          * if new layout used bigger DOM size, then mirroring is used
1248          */
1249         if (dom_new > dom_cur) {
1250                 rc = lfs_migrate_to_dom(fd, fdv, name, migration_flags);
1251                 if (rc)
1252                         error_loc = "cannot migrate to DOM layout";
1253                 goto out_closed;
1254         }
1255
1256         if (!(migration_flags & LLAPI_MIGRATION_NONBLOCK)) {
1257                 /*
1258                  * Blocking mode (forced if servers do not support file lease).
1259                  * It is also the default mode, since we cannot distinguish
1260                  * between a broken lease and a server that does not support
1261                  * atomic swap/close (LU-6785)
1262                  */
1263                 rc = migrate_block(fd, fdv);
1264                 goto out;
1265         }
1266
1267         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1268         if (rc < 0) {
1269                 error_loc = "cannot get lease";
1270                 goto out;
1271         }
1272
1273         rc = migrate_nonblock(fd, fdv);
1274         if (rc < 0) {
1275                 llapi_lease_release(fd);
1276                 goto out;
1277         }
1278
1279         /*
1280          * Atomically put lease, swap layouts and close.
1281          * for a migration we need to check data version on file did
1282          * not change.
1283          */
1284         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1285         if (rc < 0) {
1286                 error_loc = "cannot swap layout";
1287                 goto out;
1288         }
1289
1290 out:
1291         if (fd >= 0)
1292                 close(fd);
1293
1294         if (fdv >= 0)
1295                 close(fdv);
1296 out_closed:
1297         if (rc < 0)
1298                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1299                         progname, name, error_loc, strerror(-rc));
1300         else if (migration_flags & LLAPI_MIGRATION_VERBOSE)
1301                 printf("%s\n", name);
1302
1303         return rc;
1304 }
1305
1306 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1307 {
1308         char *name;
1309         char *dup_string = NULL;
1310         int rc = 0;
1311
1312         *flags = 0;
1313         *neg_flags = 0;
1314
1315         if (!string || !string[0])
1316                 return -EINVAL;
1317
1318         dup_string = strdup(string);
1319         if (!dup_string) {
1320                 llapi_printf(LLAPI_MSG_ERROR,
1321                              "%s: insufficient memory\n",
1322                              progname);
1323                 return -ENOMEM;
1324         }
1325
1326         for (name = strtok(dup_string, ","); name; name = strtok(NULL, ",")) {
1327                 bool found = false;
1328                 int i;
1329
1330                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1331                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1332                         const char *comp_name = comp_flags_table[i].cfn_name;
1333
1334                         if (strcmp(name, comp_name) == 0) {
1335                                 *flags |= comp_flag;
1336                                 found = true;
1337                         } else if (strncmp(name, "^", 1) == 0 &&
1338                                    strcmp(name + 1, comp_name) == 0) {
1339                                 *neg_flags |= comp_flag;
1340                                 found = true;
1341                         }
1342                 }
1343                 if (!found) {
1344                         llapi_printf(LLAPI_MSG_ERROR,
1345                                      "%s: component flag '%s' not supported\n",
1346                                      progname, name);
1347                         rc = -EINVAL;
1348                         goto out_free;
1349                 }
1350         }
1351
1352         if (!*flags && !*neg_flags)
1353                 rc = -EINVAL;
1354
1355         /* don't allow to set and exclude the same flag */
1356         if (*flags & *neg_flags)
1357                 rc = -EINVAL;
1358
1359 out_free:
1360         free(dup_string);
1361         return rc;
1362 }
1363
1364 static int mdthash_input(char *string, __u32 *inflags,
1365                          __u32 *exflags, __u32 *type)
1366 {
1367         char *name;
1368         struct mhf_list {
1369                 char *name;
1370                 __u32 flag;
1371         } mhflist[] = {
1372                 {"migrating", LMV_HASH_FLAG_MIGRATION},
1373                 {"badtype", LMV_HASH_FLAG_BAD_TYPE},
1374                 {"lostlmv", LMV_HASH_FLAG_LOST_LMV},
1375         };
1376
1377         if (string == NULL)
1378                 return -EINVAL;
1379
1380         *inflags = 0;
1381         *exflags = 0;
1382         *type = 0;
1383         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1384                 bool found = false;
1385                 int i;
1386
1387                 for (i = 0; i < ARRAY_SIZE(mhflist); i++) {
1388                         if (strcmp(name, mhflist[i].name) == 0 ||
1389                             name[0] == mhflist[i].name[0]) {
1390                                 *inflags |= mhflist[i].flag;
1391                                 found = true;
1392                         } else if (name[0] == '^' &&
1393                                    (strcmp(name + 1, mhflist[i].name) == 0 ||
1394                                     name[1] == mhflist[i].name[0])) {
1395                                 *exflags |= mhflist[i].flag;
1396                                 found = true;
1397                         }
1398                 }
1399                 if (!found) {
1400                         i = check_hashtype(name);
1401                         if (i > 0) {
1402                                 *type |= 1 << i;
1403                                 continue;
1404                         }
1405                         llapi_printf(LLAPI_MSG_ERROR,
1406                                      "%s: invalid mdt_hash value '%s'\n",
1407                                      progname, name);
1408                         return -EINVAL;
1409                 }
1410         }
1411
1412         /* don't allow to include and exclude the same flag */
1413         if (*inflags & *exflags) {
1414                 llapi_printf(LLAPI_MSG_ERROR,
1415                              "%s: include and exclude same flag '%s'\n",
1416                              progname, string);
1417                 return -EINVAL;
1418         }
1419
1420         return 0;
1421 }
1422
1423 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1424 {
1425         if (!string)
1426                 return -EINVAL;
1427
1428         *state = 0;
1429         *neg_state = 0;
1430
1431         if (strncmp(string, "^", 1) == 0) {
1432                 *neg_state = llapi_layout_string_flags(string + 1);
1433                 if (*neg_state != 0)
1434                         return 0;
1435         } else {
1436                 *state = llapi_layout_string_flags(string);
1437                 if (*state != 0)
1438                         return 0;
1439         }
1440
1441         llapi_printf(LLAPI_MSG_ERROR,
1442                      "%s: mirrored file state '%s' not supported\n",
1443                      progname, string);
1444         return -EINVAL;
1445 }
1446
1447 /**
1448  * struct mirror_args - Command-line arguments for mirror(s).
1449  * @m_count:  Number of mirrors to be created with this layout.
1450  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1451  * @m_layout: Mirror layout.
1452  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1453  * @m_next:   Point to the next node of the list.
1454  *
1455  * Command-line arguments for mirror(s) will be parsed and stored in
1456  * a linked list that consists of this structure.
1457  */
1458 struct mirror_args {
1459         __u32                   m_count;
1460         __u32                   m_flags;
1461         struct llapi_layout     *m_layout;
1462         const char              *m_file;
1463         struct mirror_args      *m_next;
1464         bool                    m_inherit;
1465 };
1466
1467 /**
1468  * enum mirror_flags - Flags for extending a mirrored file.
1469  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1470  *             in case the victim file(s) contains the same data as the
1471  *             original mirrored file.
1472  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1473  * @MF_COMP_ID: specified component id instead of mirror id
1474  *
1475  * Flags for extending a mirrored file.
1476  */
1477 enum mirror_flags {
1478         MF_NO_VERIFY    = 0x1,
1479         MF_DESTROY      = 0x2,
1480         MF_COMP_ID      = 0x4,
1481         MF_COMP_POOL    = 0x8,
1482 };
1483
1484 /**
1485  * mirror_create_sanity_check() - Check mirror list.
1486  * @list:  A linked list that stores the mirror arguments.
1487  *
1488  * This function does a sanity check on @list for creating
1489  * a mirrored file.
1490  *
1491  * Return: 0 on success or a negative error code on failure.
1492  */
1493 static int mirror_create_sanity_check(const char *fname,
1494                                       struct mirror_args *list,
1495                                       bool check_fname)
1496 {
1497         int rc = 0;
1498         bool has_m_file = false;
1499         bool has_m_layout = false;
1500
1501         if (!list)
1502                 return -EINVAL;
1503
1504         if (fname && check_fname) {
1505                 struct llapi_layout *layout;
1506
1507                 layout = llapi_layout_get_by_path(fname, 0);
1508                 if (!layout) {
1509                         fprintf(stderr,
1510                                 "error: %s: file '%s' couldn't get layout\n",
1511                                 progname, fname);
1512                         return -ENODATA;
1513                 }
1514
1515                 rc = llapi_layout_sanity_fsname_check(layout, fname,
1516                                                       false, true);
1517
1518                 llapi_layout_free(layout);
1519
1520                 if (rc) {
1521                         llapi_layout_sanity_perror(rc);
1522                         return rc;
1523                 }
1524         }
1525
1526         while (list) {
1527                 if (list->m_file) {
1528                         has_m_file = true;
1529                         llapi_layout_free(list->m_layout);
1530
1531                         list->m_layout =
1532                                 llapi_layout_get_by_path(list->m_file, 0);
1533                         if (!list->m_layout) {
1534                                 fprintf(stderr,
1535                                         "error: %s: file '%s' has no layout\n",
1536                                         progname, list->m_file);
1537                                 return -ENODATA;
1538                         }
1539                 } else {
1540                         has_m_layout = true;
1541                         if (!list->m_layout) {
1542                                 fprintf(stderr, "error: %s: no mirror layout\n",
1543                                         progname);
1544                                 return -EINVAL;
1545                         }
1546                 }
1547
1548                 rc = llapi_layout_sanity_fsname_check(list->m_layout, fname,
1549                                                       false, true);
1550                 if (rc) {
1551                         llapi_layout_sanity_perror(rc);
1552                         return rc;
1553                 }
1554
1555                 list = list->m_next;
1556         }
1557
1558         if (has_m_file && has_m_layout) {
1559                 fprintf(stderr,
1560                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1561                         progname);
1562                 return -EINVAL;
1563         }
1564
1565         return 0;
1566 }
1567
1568 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1569 {
1570         __u32 mirror_flags = *(__u32 *)cbdata;
1571         uint32_t flags;
1572         int rc;
1573
1574         rc = llapi_layout_comp_flags_get(layout, &flags);
1575         if (rc < 0)
1576                 return rc;
1577
1578         if (!flags) {
1579                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1580                 if (rc)
1581                         return rc;
1582         }
1583
1584         return LLAPI_LAYOUT_ITER_CONT;
1585 }
1586
1587 /**
1588  * mirror_create() - Create a mirrored file.
1589  * @fname:        The file to be created.
1590  * @mirror_list:  A linked list that stores the mirror arguments.
1591  *
1592  * This function creates a mirrored file @fname with the mirror(s)
1593  * from @mirror_list.
1594  *
1595  * Return: 0 on success or a negative error code on failure.
1596  */
1597 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1598 {
1599         struct llapi_layout *layout = NULL;
1600         struct mirror_args *cur_mirror = NULL;
1601         uint16_t mirror_count = 0;
1602         int i = 0;
1603         int rc = 0;
1604
1605         rc = mirror_create_sanity_check(fname, mirror_list, false);
1606         if (rc)
1607                 return rc;
1608
1609         cur_mirror = mirror_list;
1610         while (cur_mirror) {
1611                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1612                                                mirror_set_flags,
1613                                                &cur_mirror->m_flags);
1614                 if (rc) {
1615                         rc = -errno;
1616                         fprintf(stderr, "%s: failed to set mirror flags\n",
1617                                 progname);
1618                         goto error;
1619                 }
1620
1621                 for (i = 0; i < cur_mirror->m_count; i++) {
1622                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1623                         if (rc) {
1624                                 rc = -errno;
1625                                 fprintf(stderr,
1626                                         "error: %s: merge layout failed: %s\n",
1627                                         progname, strerror(errno));
1628                                 goto error;
1629                         }
1630                 }
1631                 mirror_count += cur_mirror->m_count;
1632                 cur_mirror = cur_mirror->m_next;
1633         }
1634
1635         if (!layout) {
1636                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1637                 return -EINVAL;
1638         }
1639
1640         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1641         if (rc) {
1642                 rc = -errno;
1643                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1644                         progname, strerror(errno));
1645                 goto error;
1646         }
1647
1648         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1649                                   layout);
1650         if (rc >= 0) {
1651                 close(rc);
1652                 rc = 0;
1653         }
1654
1655 error:
1656         llapi_layout_free(layout);
1657         return rc;
1658 }
1659
1660 /**
1661  * Compare files and check lease on @fd.
1662  *
1663  * \retval bytes number of bytes are the same
1664  */
1665 static ssize_t mirror_file_compare(int fd, int fdv)
1666 {
1667         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1668         void *buf;
1669         ssize_t bytes_done = 0;
1670         ssize_t bytes_read = 0;
1671
1672         buf = malloc(buflen * 2);
1673         if (!buf)
1674                 return -ENOMEM;
1675
1676         while (1) {
1677                 if (!llapi_lease_check(fd)) {
1678                         bytes_done = -EBUSY;
1679                         break;
1680                 }
1681
1682                 bytes_read = read(fd, buf, buflen);
1683                 if (bytes_read <= 0)
1684                         break;
1685
1686                 if (bytes_read != read(fdv, buf + buflen, buflen))
1687                         break;
1688
1689                 /*
1690                  * XXX: should compute the checksum on each buffer and then
1691                  * compare checksum to avoid cache collision
1692                  */
1693                 if (memcmp(buf, buf + buflen, bytes_read))
1694                         break;
1695
1696                 bytes_done += bytes_read;
1697         }
1698
1699         free(buf);
1700
1701         return bytes_done;
1702 }
1703
1704 static int mirror_extend_file(const char *fname, const char *victim_file,
1705                               enum mirror_flags mirror_flags)
1706 {
1707         int fd = -1;
1708         int fdv = -1;
1709         struct stat stbuf;
1710         struct stat stbuf_v;
1711         struct ll_ioc_lease *data = NULL;
1712         int rc;
1713
1714         fd = open(fname, O_RDWR);
1715         if (fd < 0) {
1716                 error_loc = "open source file";
1717                 rc = -errno;
1718                 goto out;
1719         }
1720
1721         fdv = open(victim_file, O_RDWR);
1722         if (fdv < 0) {
1723                 error_loc = "open target file";
1724                 rc = -errno;
1725                 goto out;
1726         }
1727
1728         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1729                 error_loc = "stat source or target file";
1730                 rc = -errno;
1731                 goto out;
1732         }
1733
1734         if (stbuf.st_dev != stbuf_v.st_dev) {
1735                 error_loc = "stat source and target file";
1736                 rc = -EXDEV;
1737                 goto out;
1738         }
1739
1740         /* mirrors should be of the same size */
1741         if (stbuf.st_size != stbuf_v.st_size) {
1742                 error_loc = "file sizes don't match";
1743                 rc = -EINVAL;
1744                 goto out;
1745         }
1746
1747         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1748         if (rc < 0) {
1749                 error_loc = "cannot get lease";
1750                 goto out;
1751         }
1752
1753         if (!(mirror_flags & MF_NO_VERIFY)) {
1754                 ssize_t ret;
1755                 /* mirrors should have the same contents */
1756                 ret = mirror_file_compare(fd, fdv);
1757                 if (ret != stbuf.st_size) {
1758                         error_loc = "file busy or contents don't match";
1759                         rc = ret < 0 ? ret : -EINVAL;
1760                         goto out;
1761                 }
1762         }
1763
1764         /* Get rid of caching pages from clients */
1765         rc = llapi_file_flush(fd);
1766         if (rc < 0) {
1767                 error_loc = "cannot get data version";
1768                 goto out;
1769         }
1770
1771         rc = llapi_file_flush(fdv);
1772         if (rc < 0) {
1773                 error_loc = "cannot get data version";
1774                 goto out;
1775         }
1776
1777         rc = migrate_set_timestamps(fd, &stbuf);
1778         if (rc < 0) {
1779                 error_loc = "cannot set source file timestamp";
1780                 goto out;
1781         }
1782
1783         /* Atomically put lease, merge layouts and close. */
1784         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1785         if (!data) {
1786                 error_loc = "memory allocation";
1787                 goto out;
1788         }
1789         data->lil_mode = LL_LEASE_UNLCK;
1790         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1791         data->lil_count = 1;
1792         data->lil_ids[0] = fdv;
1793         rc = llapi_lease_set(fd, data);
1794         if (rc < 0) {
1795                 error_loc = "cannot merge layout";
1796                 goto out;
1797         } else if (rc == 0) {
1798                 rc = -EBUSY;
1799                 error_loc = "lost lease lock";
1800                 goto out;
1801         }
1802         rc = 0;
1803
1804 out:
1805         if (data)
1806                 free(data);
1807         if (fd >= 0)
1808                 close(fd);
1809         if (fdv >= 0)
1810                 close(fdv);
1811         if (!rc)
1812                 (void) unlink(victim_file);
1813         if (rc < 0)
1814                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1815                         progname, fname, error_loc, strerror(-rc));
1816         return rc;
1817 }
1818
1819 static int mirror_extend_layout(char *name, struct llapi_layout *m_layout,
1820                                 bool inherit, uint32_t flags)
1821 {
1822         struct llapi_layout *f_layout = NULL;
1823         struct ll_ioc_lease *data = NULL;
1824         struct stat st;
1825         int fd = -1;
1826         int fdv = -1;
1827         int rc = 0;
1828
1829         if (inherit) {
1830                 f_layout = llapi_layout_get_by_path(name, 0);
1831                 if (!f_layout) {
1832                         rc = -EINVAL;
1833                         fprintf(stderr, "%s: cannot get layout\n", progname);
1834                         goto out;
1835                 }
1836                 rc = llapi_layout_get_last_init_comp(f_layout);
1837                 if (rc) {
1838                         fprintf(stderr, "%s: cannot get the last init comp\n",
1839                                 progname);
1840                         goto out;
1841                 }
1842                 rc = llapi_layout_mirror_inherit(f_layout, m_layout);
1843                 if (rc) {
1844                         fprintf(stderr,
1845                                 "%s: cannot inherit from the last init comp\n",
1846                                 progname);
1847                         goto out;
1848                 }
1849         }
1850
1851         llapi_layout_comp_flags_set(m_layout, flags);
1852         rc = migrate_open_files(name,
1853                              LLAPI_MIGRATION_NONDIRECT | LLAPI_MIGRATION_MIRROR,
1854                              NULL, m_layout, &fd, &fdv);
1855         if (rc < 0)
1856                 goto out;
1857
1858         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1859         if (rc < 0) {
1860                 error_loc = "cannot get lease";
1861                 goto out;
1862         }
1863
1864         rc = fstat(fd, &st);
1865         if (rc < 0) {
1866                 error_loc = "cannot stat source file";
1867                 goto out;
1868         }
1869
1870         rc = migrate_nonblock(fd, fdv);
1871         if (rc < 0) {
1872                 llapi_lease_release(fd);
1873                 goto out;
1874         }
1875
1876         rc = migrate_set_timestamps(fd, &st);
1877         if (rc < 0) {
1878                 error_loc = "cannot set source file timestamp";
1879                 goto out;
1880         }
1881
1882         /* Atomically put lease, merge layouts and close. */
1883         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1884         if (!data) {
1885                 error_loc = "memory allocation";
1886                 goto out;
1887         }
1888         data->lil_mode = LL_LEASE_UNLCK;
1889         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1890         data->lil_count = 1;
1891         data->lil_ids[0] = fdv;
1892         rc = llapi_lease_set(fd, data);
1893         if (rc < 0) {
1894                 error_loc = "cannot merge layout";
1895                 goto out;
1896         } else if (rc == 0) {
1897                 rc = -EBUSY;
1898                 error_loc = "lost lease lock";
1899                 goto out;
1900         }
1901         rc = 0;
1902
1903 out:
1904         if (data)
1905                 free(data);
1906         if (fd >= 0)
1907                 close(fd);
1908         if (fdv >= 0)
1909                 close(fdv);
1910         if (rc < 0)
1911                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1912                         progname, name, error_loc, strerror(-rc));
1913         return rc;
1914 }
1915
1916 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1917                          enum mirror_flags mirror_flags)
1918 {
1919         int rc = 0;
1920
1921         while (mirror_list) {
1922                 if (mirror_list->m_file) {
1923                         rc = mirror_extend_file(fname, mirror_list->m_file,
1924                                                 mirror_flags);
1925                 } else {
1926                         __u32 mirror_count = mirror_list->m_count;
1927
1928                         while (mirror_count > 0) {
1929                                 rc = mirror_extend_layout(fname,
1930                                                         mirror_list->m_layout,
1931                                                         mirror_list->m_inherit,
1932                                                         mirror_list->m_flags);
1933                                 if (rc)
1934                                         break;
1935
1936                                 --mirror_count;
1937                         }
1938                 }
1939                 if (rc)
1940                         break;
1941
1942                 mirror_list = mirror_list->m_next;
1943         }
1944
1945         return rc;
1946 }
1947
1948 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
1949 {
1950         uint32_t id;
1951         int rc;
1952
1953         rc = llapi_layout_mirror_id_get(layout, &id);
1954         if (rc < 0)
1955                 return rc;
1956
1957         if ((__u16)id == *(__u16 *)cbdata)
1958                 return LLAPI_LAYOUT_ITER_STOP;
1959
1960         return LLAPI_LAYOUT_ITER_CONT;
1961 }
1962
1963 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
1964 {
1965         uint32_t id;
1966         int rc;
1967
1968         rc = llapi_layout_comp_id_get(layout, &id);
1969         if (rc < 0)
1970                 return rc;
1971
1972         if (id == *(__u32 *)cbdata)
1973                 return LLAPI_LAYOUT_ITER_STOP;
1974
1975         return LLAPI_LAYOUT_ITER_CONT;
1976 }
1977
1978 static int find_mirror_id_by_pool(struct llapi_layout *layout, void *cbdata)
1979 {
1980         char buf[LOV_MAXPOOLNAME + 1];
1981         struct pool_to_id_cbdata *d = (void *)cbdata;
1982         uint32_t id;
1983         int rc;
1984
1985         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
1986         if (rc < 0)
1987                 return rc;
1988         if (strcmp(d->pool, buf))
1989                 return LLAPI_LAYOUT_ITER_CONT;
1990
1991         rc = llapi_layout_mirror_id_get(layout, &id);
1992         if (rc < 0)
1993                 return rc;
1994         d->id = id;
1995
1996         return LLAPI_LAYOUT_ITER_STOP;
1997 }
1998
1999 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata)
2000 {
2001         char buf[LOV_MAXPOOLNAME + 1];
2002         struct pool_to_id_cbdata *d = (void *)cbdata;
2003         uint32_t id;
2004         int rc;
2005
2006         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
2007         if (rc < 0)
2008                 return rc;
2009         if (strcmp(d->pool, buf))
2010                 return LLAPI_LAYOUT_ITER_CONT;
2011
2012         rc = llapi_layout_comp_id_get(layout, &id);
2013         if (rc < 0)
2014                 return rc;
2015         d->id = id;
2016
2017         return LLAPI_LAYOUT_ITER_STOP;
2018 }
2019
2020 struct collect_ids_data {
2021         __u16   *cid_ids;
2022         int     cid_count;
2023         __u16   cid_exclude;
2024 };
2025
2026 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
2027 {
2028         struct collect_ids_data *cid = cbdata;
2029         uint32_t id;
2030         int rc;
2031
2032         rc = llapi_layout_mirror_id_get(layout, &id);
2033         if (rc < 0)
2034                 return rc;
2035
2036         if ((__u16)id != cid->cid_exclude) {
2037                 int i;
2038
2039                 for (i = 0; i < cid->cid_count; i++) {
2040                         /* already collected the mirror id */
2041                         if (id == cid->cid_ids[i])
2042                                 return LLAPI_LAYOUT_ITER_CONT;
2043                 }
2044                 cid->cid_ids[cid->cid_count] = id;
2045                 cid->cid_count++;
2046         }
2047
2048         return LLAPI_LAYOUT_ITER_CONT;
2049 }
2050
2051 /**
2052  * last_non_stale_mirror() - Check if a mirror is the last non-stale mirror.
2053  * @mirror_id: Mirror id to be checked.
2054  * @layout:    Mirror component list.
2055  *
2056  * This function checks if a mirror with specified @mirror_id is the last
2057  * non-stale mirror of a layout @layout.
2058  *
2059  * Return: true or false.
2060  */
2061 static inline
2062 bool last_non_stale_mirror(__u16 mirror_id, struct llapi_layout *layout)
2063 {
2064         __u16 mirror_ids[128] = { 0 };
2065         struct collect_ids_data cid = { .cid_ids = mirror_ids,
2066                                         .cid_count = 0,
2067                                         .cid_exclude = mirror_id, };
2068         int i;
2069
2070         llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
2071
2072         for (i = 0; i < cid.cid_count; i++) {
2073                 struct llapi_resync_comp comp_array[1024] = { { 0 } };
2074                 int comp_size = 0;
2075
2076                 comp_size = llapi_mirror_find_stale(layout, comp_array,
2077                                                     ARRAY_SIZE(comp_array),
2078                                                     &mirror_ids[i], 1);
2079                 if (comp_size == 0)
2080                         return false;
2081         }
2082
2083         return true;
2084 }
2085
2086 static int mirror_split(const char *fname, __u32 id, const char *pool,
2087                         enum mirror_flags mflags, const char *victim_file)
2088 {
2089         struct llapi_layout *layout;
2090         char parent[PATH_MAX];
2091         char victim[PATH_MAX];
2092         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
2093         char *ptr;
2094         struct ll_ioc_lease *data;
2095         uint16_t mirror_count;
2096         __u32 mirror_id;
2097         int mdt_index;
2098         int fd, fdv;
2099         bool purge = true; /* delete mirror by setting fdv=fd */
2100         bool is_encrypted;
2101         int rc;
2102
2103         if (victim_file && (strcmp(fname, victim_file) == 0)) {
2104                 fprintf(stderr,
2105                         "error %s: the source file '%s' and -f file are the same\n",
2106                         progname, fname);
2107                 return -EINVAL;
2108         }
2109
2110         /* check fname contains mirror with mirror_id/comp_id */
2111         layout = llapi_layout_get_by_path(fname, 0);
2112         if (!layout) {
2113                 fprintf(stderr,
2114                         "error %s: file '%s' couldn't get layout\n",
2115                         progname, fname);
2116                 return -EINVAL;
2117         }
2118
2119         rc = llapi_layout_sanity_fsname_check(layout, fname, false, true);
2120         if (rc) {
2121                 llapi_layout_sanity_perror(rc);
2122                 goto free_layout;
2123         }
2124
2125         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
2126         if (rc) {
2127                 fprintf(stderr,
2128                         "error %s: file '%s' couldn't get mirror count\n",
2129                         progname, fname);
2130                 goto free_layout;
2131         }
2132         if (mirror_count < 2) {
2133                 fprintf(stderr,
2134                         "error %s: file '%s' has %d component, cannot split\n",
2135                         progname, fname, mirror_count);
2136                 goto free_layout;
2137         }
2138
2139         if (mflags & MF_COMP_POOL) {
2140                 struct pool_to_id_cbdata data = { .pool = pool };
2141
2142                 rc = llapi_layout_comp_iterate(layout, find_mirror_id_by_pool,
2143                                                &data);
2144                 mirror_id = data.id;
2145         } else if (mflags & MF_COMP_ID) {
2146                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
2147                 mirror_id = mirror_id_of(id);
2148         } else {
2149                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
2150                 mirror_id = id;
2151         }
2152         if (rc < 0) {
2153                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
2154                         progname, fname);
2155                 goto free_layout;
2156         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
2157                 if (mflags & MF_COMP_POOL) {
2158                         fprintf(stderr,
2159                                 "error %s: file '%s' does not contain mirror with pool '%s'\n",
2160                                 progname, fname, pool);
2161                         goto free_layout;
2162                 } else if (mflags & MF_COMP_ID) {
2163                         fprintf(stderr,
2164                                 "error %s: file '%s' does not contain mirror with comp-id %u\n",
2165                                 progname, fname, id);
2166                         goto free_layout;
2167                 } else {
2168                         fprintf(stderr,
2169                                 "error %s: file '%s' does not contain mirror with id %u\n",
2170                                 progname, fname, id);
2171                         goto free_layout;
2172                 }
2173         }
2174
2175         if (!victim_file && mflags & MF_DESTROY)
2176                 /* Allow mirror split even without the key on encrypted files,
2177                  * and in this case of a 'split -d', open file with O_DIRECT
2178                  * (no IOs will be done).
2179                  */
2180                 fd = open(fname, O_RDWR | O_DIRECT | O_FILE_ENC);
2181         else
2182                 fd = open(fname, O_RDWR);
2183
2184         if (fd < 0) {
2185                 fprintf(stderr,
2186                         "error %s: open file '%s' failed: %s\n",
2187                         progname, fname, strerror(errno));
2188                 goto free_layout;
2189         }
2190
2191         /* get victim file directory pathname */
2192         if (strlen(fname) > sizeof(parent) - 1) {
2193                 fprintf(stderr, "error %s: file name of '%s' too long\n",
2194                         progname, fname);
2195                 rc = -ERANGE;
2196                 goto close_fd;
2197         }
2198         strncpy(parent, fname, sizeof(parent));
2199         ptr = strrchr(parent, '/');
2200         if (!ptr) {
2201                 if (!getcwd(parent, sizeof(parent))) {
2202                         fprintf(stderr, "error %s: getcwd failed: %s\n",
2203                                 progname, strerror(errno));
2204                         rc = -errno;
2205                         goto close_fd;
2206                 }
2207         } else {
2208                 if (ptr == parent)
2209                         ptr = parent + 1;
2210                 *ptr = '\0';
2211         }
2212
2213         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
2214         if (rc < 0) {
2215                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
2216                         progname, fname);
2217                 goto close_fd;
2218         }
2219
2220         rc = llapi_file_is_encrypted(fd);
2221         if (rc < 0) {
2222                 fprintf(stderr, "%s: cannot get flags of '%s': %d\n",
2223                         progname, fname, rc);
2224                 goto close_fd;
2225         }
2226         is_encrypted = rc;
2227
2228 again:
2229         if (!victim_file) {
2230                 /* use a temp file to store the splitted layout */
2231                 if (mflags & MF_DESTROY) {
2232                         char file_path[PATH_MAX];
2233                         unsigned int rnumber;
2234                         int open_flags;
2235
2236                         if (last_non_stale_mirror(mirror_id, layout)) {
2237                                 rc = -EUCLEAN;
2238                                 fprintf(stderr,
2239                                         "%s: cannot destroy the last non-stale mirror of file '%s'\n",
2240                                         progname, fname);
2241                                 goto close_fd;
2242                         }
2243
2244                         if (purge) {
2245                                 /* don't use volatile file for mirror destroy */
2246                                 fdv = fd;
2247                         } else {
2248                                 /**
2249                                  * try the old way to delete mirror using
2250                                  * volatile file.
2251                                  */
2252                                 do {
2253                                         rnumber = random();
2254                                         rc = snprintf(file_path,
2255                                                       sizeof(file_path),
2256                                                       "%s/" LUSTRE_VOLATILE_HDR ":%.4X:%.4X:fd=%.2d",
2257                                                       parent, mdt_index,
2258                                                       rnumber, fd);
2259                                         if (rc < 0 ||
2260                                             rc >= sizeof(file_path)) {
2261                                                 fdv = -ENAMETOOLONG;
2262                                                 break;
2263                                         }
2264
2265                                         open_flags = O_RDWR |
2266                                              (O_LOV_DELAY_CREATE & ~O_ACCMODE) |
2267                                              O_CREAT | O_EXCL | O_NOFOLLOW |
2268                                              /* O_DIRECT for mirror split -d */
2269                                              O_DIRECT |
2270                                              /* Allow split without the key */
2271                                              O_FILE_ENC;
2272                                         fdv = open(file_path, open_flags,
2273                                                    S_IRUSR | S_IWUSR);
2274                                         if (fdv < 0)
2275                                                 rc = -errno;
2276                                 } while (fdv < 0 && rc == -EEXIST);
2277                         }
2278                 } else {
2279                         if (is_encrypted) {
2280                                 rc = -1;
2281                                 fprintf(stderr,
2282                                         "error %s: not permitted on encrypted file '%s': %d\n",
2283                                         progname, fname, rc);
2284                                 goto close_fd;
2285                         }
2286
2287                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
2288                                  fname, mirror_id);
2289                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
2290                 }
2291         } else {
2292                 /* user specified victim file */
2293                 if (is_encrypted) {
2294                         rc = -1;
2295                         fprintf(stderr,
2296                                 "error %s: not permitted on encrypted file '%s': %d\n",
2297                                 progname, fname, rc);
2298                         goto close_fd;
2299                 }
2300                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
2301         }
2302
2303         if (fdv < 0) {
2304                 fprintf(stderr,
2305                         "error %s: create victim file failed: %s\n",
2306                         progname, strerror(errno));
2307                 goto close_fd;
2308         }
2309
2310         /* get lease lock of fname */
2311         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
2312         if (rc < 0) {
2313                 fprintf(stderr,
2314                         "error %s: cannot get lease of file '%s': %d\n",
2315                         progname, fname, rc);
2316                 goto close_victim;
2317         }
2318
2319         /* Atomatically put lease, split layouts and close. */
2320         data = malloc(offsetof(typeof(*data), lil_ids[2]));
2321         if (!data) {
2322                 rc = -ENOMEM;
2323                 goto close_victim;
2324         }
2325
2326         data->lil_mode = LL_LEASE_UNLCK;
2327         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
2328         data->lil_count = 2;
2329         data->lil_ids[0] = fdv;
2330         data->lil_ids[1] = mirror_id;
2331         rc = llapi_lease_set(fd, data);
2332         if (rc <= 0) {
2333                 if (rc == -EINVAL && purge) {
2334                         /* could be old MDS which prohibit fd==fdv */
2335                         purge = false;
2336                         goto again;
2337
2338                 }
2339                 if (rc == 0) /* lost lease lock */
2340                         rc = -EBUSY;
2341                 fprintf(stderr,
2342                         "error %s: cannot split '%s': %s\n",
2343                         progname, fname, strerror(-rc));
2344         } else {
2345                 rc = 0;
2346         }
2347         free(data);
2348
2349 close_victim:
2350         if (!purge)
2351                 close(fdv);
2352 close_fd:
2353         close(fd);
2354 free_layout:
2355         llapi_layout_free(layout);
2356         return rc;
2357 }
2358
2359 static inline
2360 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
2361                            __u16 *mirror_ids, int ids_nr);
2362
2363 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
2364                               __u64 migration_flags)
2365 {
2366         struct ll_ioc_lease *data = NULL;
2367         int rc;
2368
2369         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
2370         if (rc < 0) {
2371                 error_loc = "cannot get lease";
2372                 goto out_close;
2373         }
2374
2375         rc = migrate_nonblock(fd, fdv);
2376         if (rc < 0)
2377                 goto out_release;
2378
2379         /* Atomically put lease, merge layouts, resync and close. */
2380         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
2381         if (!data) {
2382                 error_loc = "memory allocation";
2383                 goto out_release;
2384         }
2385         data->lil_mode = LL_LEASE_UNLCK;
2386         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
2387         data->lil_count = 1;
2388         data->lil_ids[0] = fdv;
2389         rc = llapi_lease_set(fd, data);
2390         if (rc < 0) {
2391                 error_loc = "cannot merge layout";
2392                 goto out_close;
2393         } else if (rc == 0) {
2394                 rc = -EBUSY;
2395                 error_loc = "lost lease lock";
2396                 goto out_close;
2397         }
2398         close(fd);
2399         close(fdv);
2400
2401         rc = lfs_mirror_resync_file(name, data, NULL, 0);
2402         if (rc) {
2403                 error_loc = "cannot resync file";
2404                 goto out;
2405         }
2406
2407         /* delete first mirror now */
2408         rc = mirror_split(name, 1, NULL, MF_DESTROY, NULL);
2409         if (rc < 0)
2410                 error_loc = "cannot delete old layout";
2411         goto out;
2412
2413 out_release:
2414         llapi_lease_release(fd);
2415 out_close:
2416         close(fd);
2417         close(fdv);
2418 out:
2419         if (rc < 0)
2420                 fprintf(stderr, "error: %s: %s: %s: %s\n",
2421                         progname, name, error_loc, strerror(-rc));
2422         else if (migration_flags & LLAPI_MIGRATION_VERBOSE)
2423                 printf("%s\n", name);
2424         if (data)
2425                 free(data);
2426         return rc;
2427 }
2428
2429 /**
2430  * Parse a string containing an target index list into an array of integers.
2431  *
2432  * The input string contains a comma delimited list of individual
2433  * indices and ranges, for example "1,2-4,7". Add the indices into the
2434  * \a tgts array and remove duplicates.
2435  *
2436  * \param[out] tgts             array to store indices in
2437  * \param[in] size              size of \a tgts array
2438  * \param[in] offset            starting index in \a tgts
2439  * \param[in] arg               string containing OST index list
2440  * \param[in/out] overstriping  index list may contain duplicates
2441  *
2442  * \retval positive    number of indices in \a tgts
2443  * \retval -EINVAL     unable to parse \a arg
2444  */
2445 static int parse_targets(__u32 *tgts, int size, int offset, char *arg,
2446                          unsigned long long *pattern)
2447 {
2448         int rc;
2449         int nr = offset;
2450         int slots = size - offset;
2451         char *ptr = NULL;
2452         bool overstriped = false;
2453         bool end_of_loop;
2454
2455         if (!arg)
2456                 return -EINVAL;
2457
2458         end_of_loop = false;
2459         while (!end_of_loop) {
2460                 int start_index = 0;
2461                 int end_index = 0;
2462                 int i;
2463                 char *endptr = NULL;
2464
2465                 rc = -EINVAL;
2466
2467                 ptr = strchrnul(arg, ',');
2468
2469                 end_of_loop = *ptr == '\0';
2470                 *ptr = '\0';
2471
2472                 errno = 0;
2473                 start_index = strtol(arg, &endptr, 0);
2474                 if (endptr == arg) /* no data at all */
2475                         break;
2476                 if (errno != 0 || start_index < -1 ||
2477                     (*endptr != '-' && *endptr != '\0'))
2478                         break;
2479
2480                 end_index = start_index;
2481                 if (*endptr == '-') {
2482                         errno = 0;
2483                         end_index = strtol(endptr + 1, &endptr, 0);
2484                         if (errno != 0 || *endptr != '\0' || end_index < -1)
2485                                 break;
2486                         if (end_index < start_index)
2487                                 break;
2488                 }
2489
2490                 for (i = start_index; i <= end_index && slots > 0; i++) {
2491                         int j;
2492
2493                         /* remove duplicate */
2494                         for (j = 0; j < offset; j++) {
2495                                 if (tgts[j] == i && pattern &&
2496                                     *pattern == LLAPI_LAYOUT_OVERSTRIPING)
2497                                         overstriped = true;
2498                                 else if (tgts[j] == i)
2499                                         return -EINVAL;
2500                         }
2501
2502                         j = offset;
2503
2504                         if (j == offset) { /* check complete */
2505                                 tgts[nr++] = i;
2506                                 --slots;
2507                         }
2508                 }
2509
2510                 if (slots == 0 && i < end_index)
2511                         break;
2512
2513                 *ptr = ',';
2514                 arg = ++ptr;
2515                 offset = nr;
2516                 rc = 0;
2517         }
2518         if (!end_of_loop && ptr)
2519                 *ptr = ',';
2520
2521         if (!overstriped && pattern)
2522                 *pattern = LLAPI_LAYOUT_DEFAULT;
2523
2524         return rc < 0 ? rc : nr;
2525 }
2526
2527 struct lfs_setstripe_args {
2528         unsigned long long       lsa_comp_end;
2529         unsigned long long       lsa_stripe_size;
2530         unsigned long long       lsa_extension_size;
2531         long long                lsa_stripe_count;
2532         long long                lsa_stripe_off;
2533         __u32                    lsa_comp_flags;
2534         __u32                    lsa_comp_neg_flags;
2535         unsigned long long       lsa_pattern;
2536         unsigned int             lsa_mirror_count;
2537         int                      lsa_nr_tgts;
2538         bool                     lsa_first_comp;
2539         bool                     lsa_extension_comp;
2540         __u32                   *lsa_tgts;
2541         char                    *lsa_pool_name;
2542 };
2543
2544 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2545 {
2546         unsigned int mirror_count = lsa->lsa_mirror_count;
2547         bool first_comp = lsa->lsa_first_comp;
2548
2549         memset(lsa, 0, sizeof(*lsa));
2550
2551         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2552         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2553         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2554         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2555         lsa->lsa_pool_name = NULL;
2556
2557         lsa->lsa_mirror_count = mirror_count;
2558         lsa->lsa_first_comp = first_comp;
2559 }
2560
2561 /**
2562  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2563  * @lsa: Stripe options to be initialized and inherited.
2564  *
2565  * This function initializes stripe options in @lsa and inherit
2566  * stripe_size, stripe_count and OST pool_name options.
2567  *
2568  * Return: void.
2569  */
2570 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2571 {
2572         unsigned long long stripe_size;
2573         long long stripe_count;
2574         char *pool_name = NULL;
2575
2576         stripe_size = lsa->lsa_stripe_size;
2577         stripe_count = lsa->lsa_stripe_count;
2578         pool_name = lsa->lsa_pool_name;
2579
2580         setstripe_args_init(lsa);
2581
2582         lsa->lsa_stripe_size = stripe_size;
2583         lsa->lsa_stripe_count = stripe_count;
2584         lsa->lsa_pool_name = pool_name;
2585 }
2586
2587 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2588 {
2589         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2590                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2591                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2592                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2593                 lsa->lsa_comp_end != 0);
2594 }
2595
2596 static int lsa_args_stripe_count_check(struct lfs_setstripe_args *lsa)
2597 {
2598         if (lsa->lsa_nr_tgts) {
2599                 if (lsa->lsa_nr_tgts < 0 ||
2600                     lsa->lsa_nr_tgts >= LOV_MAX_STRIPE_COUNT) {
2601                         fprintf(stderr, "Invalid nr_tgts(%d)\n",
2602                                 lsa->lsa_nr_tgts);
2603                         errno = EINVAL;
2604                         return -1;
2605                 }
2606
2607                 if (lsa->lsa_stripe_count > 0 &&
2608                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2609                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2610                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2611                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2612                                 lsa->lsa_stripe_count,
2613                                 lsa->lsa_nr_tgts);
2614                         errno = EINVAL;
2615                         return -1;
2616                 }
2617         }
2618
2619         return 0;
2620
2621 }
2622
2623 /**
2624  * comp_args_to_layout() - Create or extend a composite layout.
2625  * @composite:       Pointer to the composite layout.
2626  * @lsa:             Stripe options for the new component.
2627  *
2628  * This function creates or extends a composite layout by adding a new
2629  * component with stripe options from @lsa.
2630  *
2631  * When modified, adjust llapi_stripe_param_verify() if needed as well.
2632  *
2633  * Return: 0 on success or an error code on failure.
2634  */
2635 static int comp_args_to_layout(struct llapi_layout **composite,
2636                                struct lfs_setstripe_args *lsa,
2637                                bool set_extent)
2638 {
2639         struct llapi_layout *layout = *composite;
2640         uint64_t prev_end = 0;
2641         uint64_t size;
2642         int i = 0, rc;
2643
2644 new_comp:
2645         if (!layout) {
2646                 layout = llapi_layout_alloc();
2647                 if (!layout) {
2648                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2649                                 strerror(errno));
2650                         errno = ENOMEM;
2651                         return -1;
2652                 }
2653                 *composite = layout;
2654                 lsa->lsa_first_comp = true;
2655         } else {
2656                 uint64_t start;
2657
2658                 /*
2659                  * Get current component extent, current component
2660                  * must be the tail component.
2661                  */
2662                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2663                 if (rc) {
2664                         fprintf(stderr, "Get comp extent failed. %s\n",
2665                                 strerror(errno));
2666                         return rc;
2667                 }
2668
2669                 if (lsa->lsa_first_comp) {
2670                         prev_end = 0;
2671                         rc = llapi_layout_add_first_comp(layout);
2672                 } else {
2673                         rc = llapi_layout_comp_add(layout);
2674                 }
2675                 if (rc) {
2676                         fprintf(stderr, "Add component failed. %s\n",
2677                                 strerror(errno));
2678                         return rc;
2679                 }
2680         }
2681
2682         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2683         if (rc) {
2684                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2685                         lsa->lsa_comp_flags, strerror(errno));
2686                 return rc;
2687         }
2688
2689         if (set_extent) {
2690                 uint64_t comp_end = lsa->lsa_comp_end;
2691
2692                 /*
2693                  * The extendable component is 0-length, so it can be removed
2694                  * if there is insufficient space to extend it.
2695                  */
2696                 if (lsa->lsa_extension_comp)
2697                         comp_end = prev_end;
2698
2699                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2700                                                   comp_end);
2701                 if (rc) {
2702                         fprintf(stderr, "Set extent [%lu, %lu) failed. %s\n",
2703                                 prev_end, comp_end, strerror(errno));
2704                         return rc;
2705                 }
2706         }
2707         /* reset lsa_first_comp */
2708         lsa->lsa_first_comp = false;
2709
2710         /* Data-on-MDT component setting */
2711         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2712                 /* Yaml support */
2713                 if (lsa->lsa_stripe_count == 0)
2714                         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2715                 if (lsa->lsa_stripe_size == lsa->lsa_comp_end)
2716                         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2717                 if (lsa->lsa_stripe_off == -1 ||
2718                     lsa->lsa_stripe_off == 0)
2719                         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2720                 /*
2721                  * In case of Data-on-MDT patterns the only extra option
2722                  * applicable is stripe size option.
2723                  */
2724                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2725                         fprintf(stderr,
2726                                 "Option 'stripe-count' can't be specified with Data-on-MDT component: %lld\n",
2727                                 lsa->lsa_stripe_count);
2728                         errno = EINVAL;
2729                         return -1;
2730                 }
2731                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT &&
2732                     lsa->lsa_stripe_size != lsa->lsa_comp_end - prev_end) {
2733                         fprintf(stderr,
2734                                 "Option 'stripe-size' can't be specified with Data-on-MDT component: %llu\n",
2735                                 lsa->lsa_stripe_size);
2736                         errno = EINVAL;
2737                         return -1;
2738                 }
2739                 if (lsa->lsa_nr_tgts != 0) {
2740                         fprintf(stderr,
2741                                 "Option 'ost-list' can't be specified with Data-on-MDT component: '%i'\n",
2742                                 lsa->lsa_nr_tgts);
2743                         errno = EINVAL;
2744                         return -1;
2745                 }
2746                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2747                         fprintf(stderr,
2748                                 "Option 'stripe-offset' can't be specified with Data-on-MDT component: %lld\n",
2749                                 lsa->lsa_stripe_off);
2750                         errno = EINVAL;
2751                         return -1;
2752                 }
2753                 if (lsa->lsa_pool_name != 0) {
2754                         fprintf(stderr,
2755                                 "Option 'pool' can't be specified with Data-on-MDT component: '%s'\n",
2756                                 lsa->lsa_pool_name);
2757                         errno = EINVAL;
2758                         return -1;
2759                 }
2760
2761                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2762                 if (rc) {
2763                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2764                                 lsa->lsa_pattern,
2765                                 strerror(errno));
2766                         return rc;
2767                 }
2768                 /* Data-on-MDT component has always single stripe up to end */
2769                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2770         } else if (lsa->lsa_pattern == LLAPI_LAYOUT_OVERSTRIPING) {
2771                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2772                 if (rc) {
2773                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2774                                 lsa->lsa_pattern,
2775                                 strerror(errno));
2776                         return rc;
2777                 }
2778         }
2779
2780         size = lsa->lsa_comp_flags & LCME_FL_EXTENSION ?
2781                 lsa->lsa_extension_size : lsa->lsa_stripe_size;
2782
2783         if (lsa->lsa_comp_flags & LCME_FL_EXTENSION)
2784                 rc = llapi_layout_extension_size_set(layout, size);
2785         else
2786                 rc = llapi_layout_stripe_size_set(layout, size);
2787
2788         if (rc) {
2789                 fprintf(stderr, "Set stripe size %lu failed: %s\n",
2790                         size, strerror(errno));
2791                 return rc;
2792         }
2793
2794         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2795         if (rc) {
2796                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2797                         lsa->lsa_stripe_count, strerror(errno));
2798                 return rc;
2799         }
2800
2801         if (lsa->lsa_pool_name) {
2802                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2803                 if (rc) {
2804                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2805                                 lsa->lsa_pool_name, strerror(errno));
2806                         return rc;
2807                 }
2808         } else {
2809                 rc = llapi_layout_pool_name_set(layout, "");
2810                 if (rc) {
2811                         fprintf(stderr, "Clear pool name failed: %s\n",
2812                                 strerror(errno));
2813                         return rc;
2814                 }
2815         }
2816
2817         rc = lsa_args_stripe_count_check(lsa);
2818         if (rc)
2819                 return rc;
2820
2821         if (lsa->lsa_nr_tgts > 0) {
2822                 bool found = false;
2823
2824                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2825                         rc = llapi_layout_ost_index_set(layout, i,
2826                                                         lsa->lsa_tgts[i]);
2827                         if (rc)
2828                                 break;
2829
2830                         /* Make sure stripe offset is in OST list. */
2831                         if (lsa->lsa_tgts[i] == lsa->lsa_stripe_off)
2832                                 found = true;
2833                 }
2834                 if (!found) {
2835                         fprintf(stderr, "Invalid stripe offset '%lld', not in the target list",
2836                                 lsa->lsa_stripe_off);
2837                         errno = EINVAL;
2838                         return -1;
2839                 }
2840         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2841                    lsa->lsa_stripe_off != -1) {
2842                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2843         }
2844         if (rc) {
2845                 fprintf(stderr, "Set ost index %d failed. %s\n",
2846                         i, strerror(errno));
2847                 return rc;
2848         }
2849
2850         /* Create the second, virtual component of extension space */
2851         if (lsa->lsa_extension_comp) {
2852                 lsa->lsa_comp_flags |= LCME_FL_EXTENSION;
2853                 lsa->lsa_extension_comp = false;
2854                 goto new_comp;
2855         }
2856
2857         return rc;
2858 }
2859
2860 static int build_component(struct llapi_layout **layout,
2861                            struct lfs_setstripe_args *lsa, bool set_extent)
2862 {
2863         int rc;
2864
2865         rc = comp_args_to_layout(layout, lsa, set_extent);
2866         if (rc)
2867                 return rc;
2868
2869         if (lsa->lsa_mirror_count > 0) {
2870                 rc = llapi_layout_mirror_count_set(*layout,
2871                                                    lsa->lsa_mirror_count);
2872                 if (rc)
2873                         return rc;
2874
2875                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2876                 if (rc)
2877                         return rc;
2878                 lsa->lsa_mirror_count = 0;
2879         }
2880
2881         return rc;
2882 }
2883
2884 static int build_prev_component(struct llapi_layout **layout,
2885                                 struct lfs_setstripe_args *prev,
2886                                 struct lfs_setstripe_args *lsa,
2887                                 bool set_extent)
2888 {
2889         int extension = lsa->lsa_comp_flags & LCME_FL_EXTENSION;
2890         int rc;
2891
2892         if (prev->lsa_stripe_size) {
2893                 if (extension) {
2894                         prev->lsa_comp_end = lsa->lsa_comp_end;
2895                         prev->lsa_extension_size = lsa->lsa_extension_size;
2896                         prev->lsa_extension_comp = true;
2897                 }
2898
2899                 rc = build_component(layout, prev, true);
2900                 if (rc)
2901                         return rc;
2902         }
2903
2904         /*
2905          * Copy lsa to previous lsa;
2906          * if this is an extension component, make the previous invalid;
2907          */
2908         if (extension)
2909                 prev->lsa_stripe_size = 0;
2910         else
2911                 *prev = *lsa;
2912
2913         return 0;
2914 }
2915
2916 #ifndef LCME_TEMPLATE_FLAGS
2917 #define LCME_TEMPLATE_FLAGS     (LCME_FL_PREF_RW | LCME_FL_NOSYNC | \
2918                                  LCME_FL_EXTENSION)
2919 #endif
2920
2921 static int build_layout_from_yaml_node(struct cYAML *node,
2922                                        struct llapi_layout **layout,
2923                                        struct lfs_setstripe_args *lsa,
2924                                        struct lfs_setstripe_args *prevp)
2925 {
2926         struct lfs_setstripe_args prev = { 0 };
2927         __u32 *osts = lsa->lsa_tgts;
2928         char *string;
2929         int rc = 0;
2930
2931         if (!prevp)
2932                 prevp = &prev;
2933
2934         while (node) {
2935                 string = node->cy_string;
2936
2937                 if (node->cy_type == CYAML_TYPE_OBJECT) {
2938                         /* go deep to sub blocks */
2939                         if (string && !strncmp(string, "component", 9) &&
2940                             strncmp(string, "component0", 10) &&
2941                             strncmp(string, "components", 10)) {
2942                                 rc = build_prev_component(layout, prevp, lsa,
2943                                                           true);
2944                                 if (rc)
2945                                         return rc;
2946
2947                                 /* initialize lsa. */
2948                                 setstripe_args_init(lsa);
2949                                 lsa->lsa_first_comp = false;
2950                                 lsa->lsa_tgts = osts;
2951                         }
2952
2953                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2954                                                          lsa, prevp);
2955                         if (rc)
2956                                 return rc;
2957                 } else {
2958                         if (!node->cy_string)
2959                                 return -EINVAL;
2960
2961                         /* skip leading lmm_ if present, to simplify parsing */
2962                         if (strncmp(string, "lmm_", 4) == 0)
2963                                 string += 4;
2964
2965                         if (node->cy_type == CYAML_TYPE_STRING) {
2966                                 if (!strcmp(string, "lcme_extent.e_end")) {
2967                                         if (!strcmp(node->cy_valuestring, "EOF") ||
2968                                             !strcmp(node->cy_valuestring, "eof"))
2969                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2970                                 } else if (!strcmp(string, "pool")) {
2971                                         lsa->lsa_pool_name = node->cy_valuestring;
2972                                 } else if (!strcmp(string, "pattern")) {
2973                                         if (!strcmp(node->cy_valuestring, "mdt"))
2974                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2975                                         if (!strcmp(node->cy_valuestring,
2976                                                     "raid0,overstriped"))
2977                                                 lsa->lsa_pattern =
2978                                                         LLAPI_LAYOUT_OVERSTRIPING;
2979                                 } else if (!strcmp(string, "lcme_flags")) {
2980                                         rc = comp_str2flags(node->cy_valuestring,
2981                                                             &lsa->lsa_comp_flags,
2982                                                             &lsa->lsa_comp_neg_flags);
2983                                         if (rc)
2984                                                 return rc;
2985                                         /*
2986                                          * Only template flags have meaning in
2987                                          * the layout for a new file
2988                                          */
2989                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
2990                                 }
2991                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2992                                 if (!strcmp(string, "lcm_mirror_count")) {
2993                                         lsa->lsa_mirror_count = node->cy_valueint;
2994                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
2995                                         if (node->cy_valueint == 0)
2996                                                 lsa->lsa_first_comp = true;
2997                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
2998                                         if (node->cy_valueint == -1)
2999                                                 lsa->lsa_comp_end = LUSTRE_EOF;
3000                                         else
3001                                                 lsa->lsa_comp_end = node->cy_valueint;
3002                                 } else if (!strcmp(string, "stripe_count")) {
3003                                         lsa->lsa_stripe_count = node->cy_valueint;
3004                                 } else if (!strcmp(string, "stripe_size")) {
3005                                         lsa->lsa_stripe_size = node->cy_valueint;
3006                                 } else if (!strcmp(string, "extension_size")) {
3007                                         lsa->lsa_extension_size = node->cy_valueint;
3008                                         lsa->lsa_extension_comp = true;
3009                                 } else if (!strcmp(string, "stripe_offset")) {
3010                                         lsa->lsa_stripe_off = node->cy_valueint;
3011                                 } else if (!strcmp(string, "l_ost_idx")) {
3012                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
3013                                         lsa->lsa_nr_tgts++;
3014                                 }
3015                         }
3016                 }
3017                 node = node->cy_next;
3018         }
3019
3020         if (prevp == &prev) {
3021                 rc = build_prev_component(layout, prevp, lsa, true);
3022                 if (rc)
3023                         return rc;
3024
3025                 if (!(lsa->lsa_comp_flags & LCME_FL_EXTENSION))
3026                         rc = build_component(layout, lsa, *layout != NULL);
3027         }
3028
3029         return rc;
3030 }
3031
3032 static int lfs_comp_create_from_yaml(char *template,
3033                                      struct llapi_layout **layout,
3034                                      struct lfs_setstripe_args *lsa,
3035                                      __u32 *osts)
3036 {
3037         struct cYAML *tree = NULL, *err_rc = NULL;
3038         int rc = 0;
3039
3040         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
3041         if (!tree) {
3042                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
3043                         progname, template);
3044                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
3045                                   "can't parse", &err_rc);
3046                 cYAML_print_tree2file(stderr, err_rc);
3047                 cYAML_free_tree(err_rc);
3048                 rc = -EINVAL;
3049                 goto err;
3050         }
3051
3052         /* initialize lsa for plain file */
3053         setstripe_args_init(lsa);
3054         lsa->lsa_tgts = osts;
3055
3056         rc = build_layout_from_yaml_node(tree, layout, lsa, NULL);
3057         if (rc) {
3058                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
3059                         progname, template);
3060                 goto err;
3061         }
3062         /* clean clean lsa */
3063         setstripe_args_init(lsa);
3064
3065 err:
3066         if (tree)
3067                 cYAML_free_tree(tree);
3068         return rc;
3069 }
3070
3071 /**
3072  * Get the extension size from the next (SEL) component and extend the
3073  * current component on it. The start of the next component is to be
3074  * adjusted as well.
3075  *
3076  * \param[in] layout    the current layout
3077  * \param[in] start     the start of the current component
3078  * \param[in,out] end   the end of the current component
3079  * \param[in] offset    the offset to adjust the end position to instead of
3080  *                      extension size
3081  *
3082  * \retval 0            - extended successfully
3083  * \retval < 0          - error
3084  */
3085 static int layout_extend_comp(struct llapi_layout *layout,
3086                               uint64_t start, uint64_t *end,
3087                               uint64_t offset)
3088 {
3089         uint64_t size, next_start, next_end;
3090         int rc;
3091
3092         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_NEXT);
3093         if (rc < 0) {
3094                 fprintf(stderr,
3095                         "%s setstripe: cannot move component cursor: %s\n",
3096                         progname, strerror(errno));
3097                 return rc;
3098         }
3099
3100         /*
3101          * Even if the @size will not be used below, this will fail if
3102          * this is not a SEL component - a good confirmation we are
3103          * working on right components.
3104          */
3105         rc = llapi_layout_extension_size_get(layout, &size);
3106         if (rc < 0) {
3107                 fprintf(stderr,
3108                         "%s setstripe: cannot get component ext size: %s\n",
3109                         progname, strerror(errno));
3110                 return rc;
3111         }
3112
3113         rc = llapi_layout_comp_extent_get(layout, &next_start, &next_end);
3114         if (rc) {
3115                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3116                         progname, strerror(errno));
3117                 return rc;
3118         }
3119
3120         next_start += offset ?: size;
3121         rc = llapi_layout_comp_extent_set(layout, next_start, next_end);
3122         if (rc) {
3123                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
3124                         progname, strerror(errno));
3125                 return rc;
3126         }
3127
3128         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_PREV);
3129         if (rc < 0) {
3130                 fprintf(stderr,
3131                         "%s setstripe: cannot move component cursor: %s\n",
3132                         progname, strerror(errno));
3133                 return rc;
3134         }
3135
3136         *end += offset ?: size;
3137         rc = llapi_layout_comp_extent_set(layout, start, *end);
3138         if (rc) {
3139                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
3140                         progname, strerror(errno));
3141                 return rc;
3142         }
3143
3144         return 0;
3145 }
3146
3147 /**
3148  * In 'lfs setstripe --component-add' mode, we need to fetch the extent
3149  * end of the last component in the existing file, and adjust the
3150  * first extent start of the components to be added accordingly.
3151  *
3152  * In the create mode, we need to check if the first component is an extendable
3153  * SEL component and extend its length to the extension size (first component
3154  * of the PFL file is initialised at the create time, cannot be 0-lenght.
3155  */
3156 static int layout_adjust_first_extent(char *fname, struct llapi_layout *layout,
3157                                       bool comp_add)
3158 {
3159         struct llapi_layout *head;
3160         uint64_t start = 0, prev_end = 0;
3161         uint64_t end;
3162         int rc, ret = 0;
3163
3164         if (!layout || !(comp_add || llapi_layout_is_composite(layout)))
3165                 return 0;
3166
3167         errno = 0;
3168         while (comp_add) {
3169                 head = llapi_layout_get_by_path(fname, 0);
3170                 if (!head) {
3171                         fprintf(stderr,
3172                                 "%s setstripe: cannot read layout from '%s': %s\n",
3173                                 progname, fname, strerror(errno));
3174                         return -EINVAL;
3175                 } else if (errno == ENODATA) {
3176                         /*
3177                          * file without LOVEA, this component-add will be turned
3178                          * into a component-create.
3179                          */
3180                         llapi_layout_free(head);
3181                         ret = -ENODATA;
3182
3183                         /*
3184                          * the new layout will be added to an empty one, it
3185                          * still needs to be adjusted below
3186                          */
3187                         comp_add = 0;
3188                         break;
3189                 } else if (!llapi_layout_is_composite(head)) {
3190                         fprintf(stderr,
3191                                 "%s setstripe: '%s' not a composite file\n",
3192                                 progname, fname);
3193                         llapi_layout_free(head);
3194                         return -EINVAL;
3195                 }
3196
3197                 rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
3198                 if (rc) {
3199                         fprintf(stderr,
3200                                 "%s setstripe: cannot get prev extent: %s\n",
3201                                 progname, strerror(errno));
3202                         llapi_layout_free(head);
3203                         return rc;
3204                 }
3205
3206                 llapi_layout_free(head);
3207                 break;
3208         }
3209
3210         /* Make sure we use the first component of the layout to be added. */
3211         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
3212         if (rc < 0) {
3213                 fprintf(stderr,
3214                         "%s setstripe: cannot move component cursor: %s\n",
3215                         progname, strerror(errno));
3216                 return rc;
3217         }
3218
3219         rc = llapi_layout_comp_extent_get(layout, &start, &end);
3220         if (rc) {
3221                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3222                         progname, strerror(errno));
3223                 return rc;
3224         }
3225
3226         if (start == 0 && end == 0) {
3227                 rc = layout_extend_comp(layout, start, &end,
3228                                         comp_add ? prev_end : 0);
3229                 if (rc)
3230                         return rc;
3231         }
3232
3233         if (start > prev_end || end < prev_end) {
3234                 fprintf(stderr,
3235                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
3236                         progname, start, end, prev_end);
3237                 return -EINVAL;
3238         }
3239
3240         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
3241         if (rc) {
3242                 fprintf(stderr,
3243                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
3244                         progname, prev_end, end, strerror(errno));
3245                 return rc;
3246         }
3247
3248         return ret;
3249 }
3250
3251 static int mirror_adjust_first_extents(struct mirror_args *list)
3252 {
3253         int rc = 0;
3254
3255         if (!list)
3256                 return 0;
3257
3258         while (list) {
3259                 rc = layout_adjust_first_extent(NULL, list->m_layout, false);
3260                 if (rc)
3261                         break;
3262                 list = list->m_next;
3263         }
3264
3265         return rc;
3266 }
3267
3268 static inline bool arg_is_eof(char *arg)
3269 {
3270         return !strncmp(arg, "-1", strlen("-1")) ||
3271                !strncmp(arg, "EOF", strlen("EOF")) ||
3272                !strncmp(arg, "eof", strlen("eof"));
3273 }
3274
3275 /**
3276  * lfs_mirror_alloc() - Allocate a mirror argument structure.
3277  *
3278  * Return: Valid mirror_args pointer on success and
3279  *         NULL if memory allocation fails.
3280  */
3281 static struct mirror_args *lfs_mirror_alloc(void)
3282 {
3283         struct mirror_args *mirror = NULL;
3284
3285         while (1) {
3286                 mirror = calloc(1, sizeof(*mirror));
3287                 if (mirror) {
3288                         mirror->m_inherit = false;
3289                         break;
3290                 }
3291
3292                 sleep(1);
3293         }
3294
3295         return mirror;
3296 }
3297
3298 /**
3299  * lfs_mirror_free() - Free memory allocated for a mirror argument
3300  *                     structure.
3301  * @mirror: Previously allocated mirror argument structure by
3302  *          lfs_mirror_alloc().
3303  *
3304  * Free memory allocated for @mirror.
3305  *
3306  * Return: void.
3307  */
3308 static void lfs_mirror_free(struct mirror_args *mirror)
3309 {
3310         if (mirror->m_layout)
3311                 llapi_layout_free(mirror->m_layout);
3312         free(mirror);
3313 }
3314
3315 /**
3316  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
3317  * @mirror_list: Previously allocated mirror list.
3318  *
3319  * Free memory allocated for @mirror_list.
3320  *
3321  * Return: void.
3322  */
3323 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
3324 {
3325         struct mirror_args *next_mirror = NULL;
3326
3327         while (mirror_list) {
3328                 next_mirror = mirror_list->m_next;
3329                 lfs_mirror_free(mirror_list);
3330                 mirror_list = next_mirror;
3331         }
3332 }
3333
3334 enum {
3335         LFS_POOL_OPT = 3,
3336         LFS_COMP_COUNT_OPT,
3337         LFS_COMP_START_OPT,
3338         LFS_COMP_FLAGS_OPT,
3339         LFS_COMP_DEL_OPT,
3340         LFS_COMP_SET_OPT,
3341         LFS_COMP_ADD_OPT,
3342         LFS_COMP_NO_VERIFY_OPT,
3343         LFS_PROJID_OPT,
3344         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
3345         LFS_MIRROR_ID_OPT,
3346         LFS_MIRROR_STATE_OPT,
3347         LFS_LAYOUT_COPY,
3348         LFS_MIRROR_INDEX_OPT,
3349         LFS_LAYOUT_FOREIGN_OPT,
3350         LFS_MODE_OPT,
3351         LFS_NEWERXY_OPT,
3352         LFS_INHERIT_RR_OPT,
3353         LFS_FIND_PERM,
3354         LFS_PRINTF_OPT,
3355 };
3356
3357 #ifndef LCME_USER_MIRROR_FLAGS
3358 /* The mirror flags can be set by users at creation time. */
3359 #define LCME_USER_MIRROR_FLAGS  (LCME_FL_PREF_RW)
3360 #endif
3361
3362 /* functions */
3363 static int lfs_setstripe_internal(int argc, char **argv,
3364                                   enum setstripe_origin opc)
3365 {
3366         struct lfs_setstripe_args        lsa = { 0 };
3367         struct llapi_stripe_param       *param = NULL;
3368         struct find_param                migrate_mdt_param = {
3369                 .fp_max_depth = -1,
3370                 .fp_mdt_index = -1,
3371         };
3372         char                            *fname;
3373         int                              result = 0;
3374         int                              result2 = 0;
3375         char                            *end;
3376         int                              c;
3377         int                              delete = 0;
3378         unsigned long long               size_units = 1;
3379         bool                             migrate_mode = false;
3380         bool                             migrate_mdt_mode = false;
3381         bool                             setstripe_mode = false;
3382         bool                             migration_block = false;
3383         __u64                            migration_flags = 0;
3384         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
3385         int                              comp_del = 0, comp_set = 0;
3386         int                              comp_add = 0;
3387         __u32                            comp_id = 0;
3388         struct llapi_layout             *layout = NULL;
3389         struct llapi_layout             **lpp = &layout;
3390         bool                             mirror_mode = false;
3391         bool                             has_m_file = false;
3392         __u32                            mirror_count = 0;
3393         enum mirror_flags                mirror_flags = 0;
3394         struct mirror_args              *mirror_list = NULL;
3395         struct mirror_args              *new_mirror = NULL;
3396         struct mirror_args              *last_mirror = NULL;
3397         __u16                            mirror_id = 0;
3398         char                             cmd[PATH_MAX];
3399         bool from_yaml = false;
3400         bool from_copy = false;
3401         char *template = NULL;
3402         bool foreign_mode = false;
3403         char *xattr = NULL;
3404         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
3405         char *mode_opt = NULL;
3406         mode_t previous_umask = 0;
3407         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
3408
3409         struct option long_opts[] = {
3410 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
3411 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3412         /* --block is only valid in migrate mode */
3413         { .val = 'b',   .name = "block",        .has_arg = no_argument },
3414 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
3415         { .val = LFS_COMP_ADD_OPT,
3416                         .name = "comp-add",     .has_arg = no_argument },
3417         { .val = LFS_COMP_ADD_OPT,
3418                         .name = "component-add", .has_arg = no_argument },
3419         { .val = LFS_COMP_DEL_OPT,
3420                         .name = "comp-del",     .has_arg = no_argument },
3421         { .val = LFS_COMP_DEL_OPT,
3422                         .name = "component-del", .has_arg = no_argument },
3423         { .val = LFS_COMP_FLAGS_OPT,
3424                         .name = "comp-flags",   .has_arg = required_argument },
3425         { .val = LFS_COMP_FLAGS_OPT,
3426                         .name = "component-flags",
3427                                                 .has_arg = required_argument },
3428         { .val = LFS_COMP_SET_OPT,
3429                         .name = "comp-set",     .has_arg = no_argument },
3430         { .val = LFS_COMP_SET_OPT,
3431                         .name = "component-set",
3432                                                 .has_arg = no_argument},
3433         { .val = LFS_COMP_NO_VERIFY_OPT,
3434                         .name = "no-verify",    .has_arg = no_argument},
3435         { .val = LFS_LAYOUT_FLAGS_OPT,
3436                         .name = "flags",        .has_arg = required_argument},
3437         { .val = LFS_LAYOUT_FOREIGN_OPT,
3438                         .name = "foreign",      .has_arg = optional_argument},
3439         { .val = LFS_MIRROR_ID_OPT,
3440                         .name = "mirror-id",    .has_arg = required_argument},
3441         { .val = LFS_MODE_OPT,
3442                         .name = "mode",         .has_arg = required_argument},
3443         { .val = LFS_LAYOUT_COPY,
3444                         .name = "copy",         .has_arg = required_argument},
3445         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
3446         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
3447         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
3448         { .val = 'C',   .name = "overstripe-count",
3449                                                 .has_arg = required_argument},
3450         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
3451         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
3452         /* used with "lfs migrate -m" */
3453         { .val = 'd',   .name = "directory",    .has_arg = no_argument},
3454         /* --non-direct is only valid in migrate mode */
3455         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
3456         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
3457         { .val = 'E',   .name = "component-end",
3458                                                 .has_arg = required_argument},
3459         { .val = 'f',   .name = "file",         .has_arg = required_argument },
3460 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3461 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
3462 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3463         { .val = 'h',   .name = "help",         .has_arg = no_argument },
3464         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
3465         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
3466         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
3467         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
3468         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
3469 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
3470         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3471         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
3472         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
3473         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
3474         /* --non-block is only valid in migrate mode */
3475         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
3476         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
3477         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
3478 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3479         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
3480         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
3481 #endif
3482         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3483 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3484 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3485 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3486         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3487         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3488 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3489 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3490 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3491 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3492         /* --verbose is only valid in migrate mode */
3493         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
3494         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
3495 /* dirstripe { .val = 'X',.name = "max-inherit",.has_arg = required_argument }*/
3496         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
3497         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument},
3498         { .val = 'z',   .name = "extension-size", .has_arg = required_argument},
3499         { .name = NULL } };
3500
3501         setstripe_args_init(&lsa);
3502
3503         migrate_mode = (opc == SO_MIGRATE);
3504         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
3505         setstripe_mode = (opc == SO_SETSTRIPE);
3506         if (opc == SO_MIRROR_DELETE) {
3507                 delete = 1;
3508                 mirror_flags = MF_DESTROY;
3509         }
3510
3511         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
3512         progname = cmd;
3513         while ((c = getopt_long(argc, argv,
3514                                 "bc:C:dDE:f:hH:i:I:m:N::no:p:L:s:S:vx:y:z:",
3515                                 long_opts, NULL)) >= 0) {
3516                 size_units = 1;
3517                 switch (c) {
3518                 case 0:
3519                         /* Long options. */
3520                         break;
3521                 case LFS_COMP_ADD_OPT:
3522                         comp_add = 1;
3523                         break;
3524                 case LFS_COMP_DEL_OPT:
3525                         comp_del = 1;
3526                         break;
3527                 case LFS_COMP_FLAGS_OPT:
3528                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
3529                                                 &lsa.lsa_comp_neg_flags);
3530                         if (result != 0)
3531                                 goto usage_error;
3532                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
3533                                 fprintf(stderr,
3534                                         "%s: inverted flags are not supported\n",
3535                                         progname);
3536                                 goto usage_error;
3537                         }
3538                         break;
3539                 case LFS_COMP_SET_OPT:
3540                         comp_set = 1;
3541                         break;
3542                 case LFS_COMP_NO_VERIFY_OPT:
3543                         mirror_flags |= MF_NO_VERIFY;
3544                         break;
3545                 case LFS_MIRROR_ID_OPT: {
3546                         unsigned long int id;
3547
3548                         errno = 0;
3549                         id = strtoul(optarg, &end, 0);
3550                         if (errno != 0 || *end != '\0' || id == 0 ||
3551                             id > UINT16_MAX) {
3552                                 fprintf(stderr,
3553                                         "%s %s: invalid mirror ID '%s'\n",
3554                                         progname, argv[0], optarg);
3555                                 goto usage_error;
3556                         }
3557
3558                         mirror_id = (__u16)id;
3559                         break;
3560                 }
3561                 case LFS_LAYOUT_FLAGS_OPT: {
3562                         uint32_t neg_flags;
3563
3564                         /* check for numeric flags (foreign and mirror cases) */
3565                         if (setstripe_mode && !mirror_mode && !last_mirror) {
3566                                 errno = 0;
3567                                 flags = strtoul(optarg, &end, 16);
3568                                 if (errno != 0 || *end != '\0' ||
3569                                     flags >= UINT32_MAX) {
3570                                         fprintf(stderr,
3571                                                 "%s %s: invalid hex flags '%s'\n",
3572                                                 progname, argv[0], optarg);
3573                                         return CMD_HELP;
3574                                 }
3575                                 if (!foreign_mode) {
3576                                         fprintf(stderr,
3577                                                 "%s %s: hex flags must be specified with --foreign option\n",
3578                                                 progname, argv[0]);
3579                                         return CMD_HELP;
3580                                 }
3581                                 break;
3582                         }
3583
3584                         if (!mirror_mode || !last_mirror) {
3585                                 fprintf(stderr,
3586                                         "error: %s: --flags must be specified with --mirror-count|-N option\n",
3587                                         progname);
3588                                 goto usage_error;
3589                         }
3590
3591                         result = comp_str2flags(optarg, &last_mirror->m_flags,
3592                                                 &neg_flags);
3593                         if (result != 0)
3594                                 goto usage_error;
3595
3596                         if (neg_flags) {
3597                                 fprintf(stderr,
3598                                         "%s: inverted flags are not supported\n",
3599                                         progname);
3600                                 result = -EINVAL;
3601                                 goto usage_error;
3602                         }
3603                         if (last_mirror->m_flags & ~LCME_USER_MIRROR_FLAGS) {
3604                                 fprintf(stderr,
3605                                         "%s: unsupported mirror flags: %s\n",
3606                                         progname, optarg);
3607                                 result = -EINVAL;
3608                                 goto error;
3609                         }
3610                         break;
3611                 }
3612                 case LFS_LAYOUT_FOREIGN_OPT:
3613                         if (optarg) {
3614                                 /* check pure numeric */
3615                                 type = strtoul(optarg, &end, 0);
3616                                 if (*end) {
3617                                         /* check name */
3618                                         type = check_foreign_type_name(optarg);
3619                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
3620                                                 fprintf(stderr,
3621                                                         "%s %s: unrecognized foreign type '%s'\n",
3622                                                         progname, argv[0],
3623                                                         optarg);
3624                                                 return CMD_HELP;
3625                                         }
3626                                 } else if (type >= UINT32_MAX) {
3627                                         fprintf(stderr,
3628                                                 "%s %s: invalid foreign type '%s'\n",
3629                                                 progname, argv[0], optarg);
3630                                         return CMD_HELP;
3631                                 }
3632                         }
3633                         foreign_mode = true;
3634                         break;
3635                 case LFS_MODE_OPT:
3636                         mode_opt = optarg;
3637                         if (mode_opt) {
3638                                 mode = strtoul(mode_opt, &end, 8);
3639                                 if (*end != '\0') {
3640                                         fprintf(stderr,
3641                                                 "%s %s: bad mode '%s'\n",
3642                                                 progname, argv[0], mode_opt);
3643                                         return CMD_HELP;
3644                                 }
3645                                 previous_umask = umask(0);
3646                         }
3647                         break;
3648                 case LFS_LAYOUT_COPY:
3649                         from_copy = true;
3650                         template = optarg;
3651                         break;
3652                 case 'b':
3653                         if (!migrate_mode) {
3654                                 fprintf(stderr,
3655                                         "%s %s: -b|--block valid only for migrate command\n",
3656                                         progname, argv[0]);
3657                                 goto usage_error;
3658                         }
3659                         migration_block = true;
3660                         break;
3661                 case 'C':
3662                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3663                                 fprintf(stderr,
3664                                         "%s %s: -C|--overstripe-count incompatible with DoM layout\n",
3665                                         progname, argv[0]);
3666                                 goto usage_error;
3667                         }
3668                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3669                         fallthrough;
3670                 case 'c':
3671                         errno = 0;
3672                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3673                         if (errno != 0 || *end != '\0'||
3674                             lsa.lsa_stripe_count < -1 ||
3675                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
3676                                 fprintf(stderr,
3677                                         "%s %s: invalid stripe count '%s'\n",
3678                                         progname, argv[0], optarg);
3679                                 goto usage_error;
3680                         }
3681
3682                         if (lsa.lsa_stripe_count == -1)
3683                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
3684                         break;
3685                 case 'd':
3686                         if (migrate_mode) {
3687                                 migrate_mdt_param.fp_max_depth = 1;
3688                         } else {
3689                                 /* delete the default striping pattern */
3690                                 delete = 1;
3691                                 if (opc == SO_MIRROR_SPLIT) {
3692                                         if (has_m_file) {
3693                                                 fprintf(stderr,
3694                                                       "%s %s: -d cannot used with -f\n",
3695                                                         progname, argv[0]);
3696                                                 goto usage_error;
3697                                         }
3698                                         mirror_flags |= MF_DESTROY;
3699                                 }
3700                         }
3701                         break;
3702                 case 'D':
3703                         if (!migrate_mode) {
3704                                 fprintf(stderr,
3705                                         "%s %s: -D|--non-direct is valid only for migrate command\n",
3706                                         progname, argv[0]);
3707                                 goto usage_error;
3708                         }
3709                         migration_flags |= LLAPI_MIGRATION_NONDIRECT;
3710                         break;
3711                 case 'E':
3712                         if (lsa.lsa_comp_end != 0) {
3713                                 result = comp_args_to_layout(lpp, &lsa, true);
3714                                 if (result) {
3715                                         fprintf(stderr, "%s: invalid layout\n",
3716                                                 progname);
3717                                         goto usage_error;
3718                                 }
3719
3720                                 setstripe_args_init_inherit(&lsa);
3721                         }
3722
3723                         if (arg_is_eof(optarg)) {
3724                                 lsa.lsa_comp_end = LUSTRE_EOF;
3725                         } else {
3726                                 result = llapi_parse_size(optarg,
3727                                                           &lsa.lsa_comp_end,
3728                                                           &size_units, 0);
3729                                 /* assume units of KB if too small */
3730                                 if (lsa.lsa_comp_end < 4096)
3731                                         lsa.lsa_comp_end *= 1024;
3732                                 if (result ||
3733                                     lsa.lsa_comp_end & (LOV_MIN_STRIPE_SIZE - 1)) {
3734                                         fprintf(stderr,
3735                                                 "%s %s: invalid component end '%s'\n",
3736                                                 progname, argv[0], optarg);
3737                                         goto usage_error;
3738                                 }
3739                         }
3740                         break;
3741                 case 'H':
3742                         if (!migrate_mode) {
3743                                 fprintf(stderr,
3744                                         "--mdt-hash is valid only for migrate command\n");
3745                                 return CMD_HELP;
3746                         }
3747
3748                         lsa.lsa_pattern = check_hashtype(optarg);
3749                         if (lsa.lsa_pattern == 0) {
3750                                 fprintf(stderr,
3751                                         "%s %s: bad stripe hash type '%s'\n",
3752                                         progname, argv[0], optarg);
3753                                 return CMD_HELP;
3754                         }
3755                         break;
3756                 case 'i':
3757                         errno = 0;
3758                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3759                         if (errno != 0 || *end != '\0' ||
3760                             lsa.lsa_stripe_off < -1 ||
3761                             lsa.lsa_stripe_off > LOV_V1_INSANE_STRIPE_COUNT) {
3762                                 fprintf(stderr,
3763                                         "%s %s: invalid stripe offset '%s'\n",
3764                                         progname, argv[0], optarg);
3765                                 goto usage_error;
3766                         }
3767                         if (lsa.lsa_stripe_off == -1)
3768                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3769                         break;
3770                 case 'I':
3771                         comp_id = strtoul(optarg, &end, 0);
3772                         if (*end != '\0' || comp_id == 0 ||
3773                             comp_id > LCME_ID_MAX) {
3774                                 fprintf(stderr,
3775                                         "%s %s: invalid component ID '%s'\n",
3776                                         progname, argv[0], optarg);
3777                                 goto usage_error;
3778                         }
3779                         break;
3780                 case 'f':
3781                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3782                                 fprintf(stderr,
3783                                         "error: %s: invalid option: %s\n",
3784                                         progname, argv[optopt + 1]);
3785                                 goto usage_error;
3786                         }
3787                         if (opc == SO_MIRROR_EXTEND) {
3788                                 if (!last_mirror) {
3789                                         fprintf(stderr,
3790                                 "error: %s: '-N' must exist in front of '%s'\n",
3791                                                 progname, argv[optopt + 1]);
3792                                         goto usage_error;
3793                                 }
3794                                 last_mirror->m_file = optarg;
3795                                 last_mirror->m_count = 1;
3796                         } else {
3797                                 /* mirror split */
3798                                 if (!mirror_list)
3799                                         mirror_list = lfs_mirror_alloc();
3800                                 mirror_list->m_file = optarg;
3801                         }
3802                         has_m_file = true;
3803                         break;
3804                 case 'L':
3805                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3806                                 /* Can be only the first component */
3807                                 if (layout) {
3808                                         result = -EINVAL;
3809                                         fprintf(stderr,
3810                                                 "error: 'mdt' layout can be only the first one\n");
3811                                         goto error;
3812                                 }
3813                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3814                                         result = -EFBIG;
3815                                         fprintf(stderr,
3816                                                 "error: 'mdt' layout size is too big\n");
3817                                         goto error;
3818                                 }
3819                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3820                                 lsa.lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
3821                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3822                                 result = -EINVAL;
3823                                 fprintf(stderr,
3824                                         "error: layout '%s' is unknown, supported layouts are: 'mdt', 'raid0'\n",
3825                                         argv[optind]);
3826                                 goto error;
3827                         }
3828                         break;
3829                 case 'm':
3830                         if (!migrate_mode) {
3831                                 fprintf(stderr,
3832                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3833                                         progname, argv[0]);
3834                                 goto usage_error;
3835                         }
3836                         migrate_mdt_mode = true;
3837                         lsa.lsa_nr_tgts = parse_targets(tgts,
3838                                                 sizeof(tgts) / sizeof(__u32),
3839                                                 lsa.lsa_nr_tgts, optarg, NULL);
3840                         if (lsa.lsa_nr_tgts < 0) {
3841                                 fprintf(stderr,
3842                                         "%s: invalid MDT target(s) '%s'\n",
3843                                         progname, optarg);
3844                                 goto usage_error;
3845                         }
3846
3847                         lsa.lsa_tgts = tgts;
3848                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3849                                 lsa.lsa_stripe_off = tgts[0];
3850                         break;
3851                 case 'n':
3852                         if (!migrate_mode) {
3853                                 fprintf(stderr,
3854                                         "%s %s: -n|--non-block valid only for migrate command\n",
3855                                         progname, argv[0]);
3856                                 goto usage_error;
3857                         }
3858                         migration_flags |= LLAPI_MIGRATION_NONBLOCK;
3859                         break;
3860                 case 'N':
3861                         if (opc == SO_SETSTRIPE) {
3862                                 opc = SO_MIRROR_CREATE;
3863                                 mirror_mode = true;
3864                         }
3865                         mirror_count = 1;
3866                         if (optarg) {
3867                                 errno = 0;
3868                                 mirror_count = strtoul(optarg, &end, 0);
3869                                 if (errno != 0 || *end != '\0' ||
3870                                     mirror_count == 0 ||
3871                                     mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
3872                                         fprintf(stderr,
3873                                                 "error: %s: bad mirror count: %s\n",
3874                                                 progname, optarg);
3875                                         result = -EINVAL;
3876                                         goto error;
3877                                 }
3878                         }
3879
3880                         new_mirror = lfs_mirror_alloc();
3881                         new_mirror->m_count = mirror_count;
3882
3883                         if (!mirror_list)
3884                                 mirror_list = new_mirror;
3885
3886                         if (last_mirror) {
3887                                 /* wrap up last mirror */
3888                                 if (!setstripe_args_specified(&lsa))
3889                                         last_mirror->m_inherit = true;
3890                                 if (lsa.lsa_comp_end == 0)
3891                                         lsa.lsa_comp_end = LUSTRE_EOF;
3892
3893                                 result = comp_args_to_layout(lpp, &lsa, true);
3894                                 if (result) {
3895                                         lfs_mirror_free(new_mirror);
3896                                         goto error;
3897                                 }
3898
3899                                 setstripe_args_init_inherit(&lsa);
3900
3901                                 last_mirror->m_next = new_mirror;
3902                         }
3903
3904                         last_mirror = new_mirror;
3905                         lpp = &last_mirror->m_layout;
3906                         break;
3907                 case 'o':
3908 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3909                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
3910                                 fprintf(stderr,
3911                                         "warning: '--ost-list' is deprecated, use '--ost' instead\n");
3912 #endif
3913                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3914                                 fprintf(stderr,
3915                                         "%s %s: -o|--ost incompatible with DoM layout\n",
3916                                         progname, argv[0]);
3917                                 goto usage_error;
3918                         }
3919                         /*
3920                          * -o allows overstriping, and must note it because
3921                          * parse_targets is shared with MDT striping, which
3922                          * does not allow duplicates
3923                          */
3924                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3925                         lsa.lsa_nr_tgts = parse_targets(tgts,
3926                                                 sizeof(tgts) / sizeof(__u32),
3927                                                 lsa.lsa_nr_tgts, optarg,
3928                                                 &lsa.lsa_pattern);
3929                         if (lsa.lsa_nr_tgts < 0) {
3930                                 fprintf(stderr,
3931                                         "%s %s: invalid OST target(s) '%s'\n",
3932                                         progname, argv[0], optarg);
3933                                 goto usage_error;
3934                         }
3935
3936                         lsa.lsa_tgts = tgts;
3937                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3938                                 lsa.lsa_stripe_off = tgts[0];
3939                         break;
3940                 case 'p':
3941                         if (!optarg)
3942                                 goto usage_error;
3943                         lsa.lsa_pool_name = optarg;
3944
3945                         if (strlen(lsa.lsa_pool_name) == 0 ||
3946                             strncmp(lsa.lsa_pool_name, "none",
3947                                     LOV_MAXPOOLNAME) == 0)
3948                                 lsa.lsa_pool_name = NULL;
3949                         break;
3950                 case 'S':
3951                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3952                                                   &size_units, 0);
3953                         /* assume units of KB if too small to be valid */
3954                         if (lsa.lsa_stripe_size < 4096)
3955                                 lsa.lsa_stripe_size *= 1024;
3956                         if (result ||
3957                             lsa.lsa_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
3958                                 fprintf(stderr,
3959                                         "%s %s: invalid stripe size '%s'\n",
3960                                         progname, argv[0], optarg);
3961                                 goto usage_error;
3962                         }
3963                         break;
3964                 case 'v':
3965                         if (!migrate_mode) {
3966                                 fprintf(stderr,
3967                                         "%s %s: -v|--verbose valid only for migrate command\n",
3968                                         progname, argv[0]);
3969                                 goto usage_error;
3970                         }
3971                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3972                         migration_flags = LLAPI_MIGRATION_VERBOSE;
3973                         break;
3974                 case 'x':
3975                         xattr = optarg;
3976                         break;
3977                 case 'y':
3978                         from_yaml = true;
3979                         template = optarg;
3980                         break;
3981                 case 'z':
3982                         result = llapi_parse_size(optarg,
3983                                                   &lsa.lsa_extension_size,
3984                                                   &size_units, 0);
3985                         if (result) {
3986                                 fprintf(stderr,
3987                                         "%s %s: invalid extension size '%s'\n",
3988                                         progname, argv[0], optarg);
3989                                 goto usage_error;
3990                         }
3991
3992                         lsa.lsa_extension_comp = true;
3993                         break;
3994                 default:
3995                         fprintf(stderr, "%s: unrecognized option '%s'\n",
3996                                 progname, argv[optind - 1]);
3997                 case 'h':
3998                         goto usage_error;
3999                 }
4000         }
4001
4002         fname = argv[optind];
4003
4004         if (optind == argc) {
4005                 fprintf(stderr, "%s %s: FILE must be specified\n",
4006                         progname, argv[0]);
4007                 goto usage_error;
4008         }
4009
4010         /* lfs migrate $filename should keep the file's layout by default */
4011         if (migrate_mode && !layout && !from_yaml &&
4012             !setstripe_args_specified(&lsa) && !lsa.lsa_pool_name)
4013                 from_copy = true;
4014
4015         if (xattr && !foreign_mode) {
4016                 /*
4017                  * only print a warning as this is harmless and will be ignored
4018                  */
4019                 fprintf(stderr,
4020                         "%s %s: xattr has been specified for non-foreign layout\n",
4021                         progname, argv[0]);
4022         } else if (foreign_mode && !xattr) {
4023                 fprintf(stderr,
4024                         "%s %s: xattr must be provided in foreign mode\n",
4025                         progname, argv[0]);
4026                 goto usage_error;
4027         }
4028
4029         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
4030             comp_set || comp_id || delete || from_copy ||
4031             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
4032             lsa.lsa_tgts)) {
4033                 fprintf(stderr,
4034                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
4035                         progname, argv[0]);
4036                 return CMD_HELP;
4037         }
4038
4039         if (mirror_mode && mirror_count == 0) {
4040                 fprintf(stderr,
4041                         "error: %s: --mirror-count|-N option is required\n",
4042                         progname);
4043                 result = -EINVAL;
4044                 goto error;
4045         }
4046
4047         if (mirror_mode) {
4048                 if (!setstripe_args_specified(&lsa))
4049                         last_mirror->m_inherit = true;
4050                 if (lsa.lsa_comp_end == 0)
4051                         lsa.lsa_comp_end = LUSTRE_EOF;
4052         }
4053
4054         if (lsa.lsa_comp_end != 0) {
4055                 result = comp_args_to_layout(lpp, &lsa, true);
4056                 if (result) {
4057                         fprintf(stderr, "error: %s: invalid layout\n",
4058                                 progname);
4059                         result = -EINVAL;
4060                         goto error;
4061                 }
4062         }
4063
4064         if (mirror_flags & MF_NO_VERIFY) {
4065                 if (opc != SO_MIRROR_EXTEND) {
4066                         fprintf(stderr,
4067                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
4068                                 progname);
4069                         result = -EINVAL;
4070                         goto error;
4071                 } else if (!has_m_file) {
4072                         fprintf(stderr,
4073                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
4074                                 progname);
4075                         result = -EINVAL;
4076                         goto error;
4077                 }
4078         }
4079
4080         if (comp_set && !comp_id && !lsa.lsa_pool_name) {
4081                 fprintf(stderr,
4082                         "%s %s: --component-set doesn't have component-id set\n",
4083                         progname, argv[0]);
4084                 goto usage_error;
4085         }
4086
4087         if ((delete + comp_set + comp_del + comp_add) > 1) {
4088                 fprintf(stderr,
4089                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
4090                         progname, argv[0]);
4091                 goto usage_error;
4092         }
4093
4094         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
4095                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
4096                 fprintf(stderr,
4097                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
4098                         progname, argv[0]);
4099                 goto usage_error;
4100         }
4101
4102         if ((comp_set || comp_del) &&
4103             (setstripe_args_specified(&lsa) || layout != NULL)) {
4104                 fprintf(stderr,
4105                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
4106                         progname, argv[0]);
4107                 goto usage_error;
4108         }
4109
4110         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
4111                 fprintf(stderr,
4112                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
4113                         progname, argv[0]);
4114                 goto usage_error;
4115         }
4116
4117         if (comp_add || comp_del) {
4118                 struct stat st;
4119
4120                 result = lstat(fname, &st);
4121                 if (result == 0 && S_ISDIR(st.st_mode)) {
4122                         fprintf(stderr,
4123                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
4124                                 progname);
4125                         goto usage_error;
4126                 }
4127
4128                 if (mirror_mode) {
4129                         fprintf(stderr,
4130                                 "error: %s: can't use --component-add or --component-del for mirror operation\n",
4131                                 progname);
4132                         goto usage_error;
4133                 }
4134         }
4135
4136         if (comp_add) {
4137                 if (!layout) {
4138                         fprintf(stderr,
4139                                 "%s %s: option -E must be specified with --component-add\n",
4140                                 progname, argv[0]);
4141                         goto usage_error;
4142                 }
4143         }
4144
4145         if (from_yaml && from_copy) {
4146                 fprintf(stderr,
4147                         "%s: can't specify --yaml and --copy together\n",
4148                         progname);
4149                 goto error;
4150         }
4151
4152         if ((from_yaml || from_copy) &&
4153             (setstripe_args_specified(&lsa) || layout != NULL)) {
4154                 fprintf(stderr,
4155                         "error: %s: can't specify --yaml or --copy with -c, -S, -i, -o, -p or -E options.\n",
4156                         argv[0]);
4157                 goto error;
4158         }
4159
4160         if ((migration_flags & LLAPI_MIGRATION_NONBLOCK) && migration_block) {
4161                 fprintf(stderr,
4162                         "%s %s: options --non-block and --block are mutually exclusive\n",
4163                         progname, argv[0]);
4164                 goto usage_error;
4165         }
4166
4167         if (!comp_del && !comp_set && opc != SO_MIRROR_SPLIT &&
4168             opc != SO_MIRROR_DELETE && comp_id != 0) {
4169                 fprintf(stderr,
4170                         "%s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
4171                         progname);
4172                 goto usage_error;
4173         }
4174
4175         if (migrate_mdt_mode) {
4176                 struct lmv_user_md *lmu;
4177
4178                 /* initialize migrate mdt parameters */
4179                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
4180                                                  LMV_USER_MAGIC_SPECIFIC));
4181                 if (!lmu) {
4182                         fprintf(stderr,
4183                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
4184                                 progname, argv[0], strerror(ENOMEM));
4185                         result = -ENOMEM;
4186                         goto error;
4187                 }
4188                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
4189                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
4190                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
4191                         fprintf(stderr,
4192                                 "%s %s: migrate should specify MDT index\n",
4193                                 progname, argv[0]);
4194                         free(lmu);
4195                         goto usage_error;
4196                 }
4197                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
4198                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
4199                         lmu->lum_hash_type = lsa.lsa_pattern;
4200                 else
4201                         lmu->lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
4202                 if (lsa.lsa_pool_name) {
4203                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
4204                                 sizeof(lmu->lum_pool_name) - 1);
4205                         lmu->lum_pool_name[sizeof(lmu->lum_pool_name) - 1] = 0;
4206                 }
4207                 if (lsa.lsa_nr_tgts > 1) {
4208                         int i;
4209
4210                         if (lsa.lsa_stripe_count > 0 &&
4211                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
4212                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
4213                                 fprintf(stderr,
4214                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
4215                                         progname, lsa.lsa_stripe_count,
4216                                         lsa.lsa_nr_tgts);
4217                                 free(lmu);
4218                                 goto usage_error;
4219                         }
4220
4221                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
4222                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
4223                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
4224                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
4225                 } else {
4226                         lmu->lum_magic = LMV_USER_MAGIC;
4227                 }
4228
4229                 migrate_mdt_param.fp_lmv_md = lmu;
4230                 migrate_mdt_param.fp_migrate = 1;
4231         } else if (!layout) {
4232                 if (lsa_args_stripe_count_check(&lsa))
4233                         goto usage_error;
4234
4235                 /* initialize stripe parameters */
4236                 param = calloc(1, offsetof(typeof(*param),
4237                                lsp_osts[lsa.lsa_nr_tgts]));
4238                 if (!param) {
4239                         fprintf(stderr,
4240                                 "%s %s: cannot allocate memory for parameters: %s\n",
4241                                 progname, argv[0], strerror(ENOMEM));
4242                         result = -ENOMEM;
4243                         goto error;
4244                 }
4245
4246                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
4247                         param->lsp_stripe_size = lsa.lsa_stripe_size;
4248                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
4249                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
4250                                 param->lsp_stripe_count = -1;
4251                         else
4252                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
4253                 }
4254                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4255                         param->lsp_stripe_offset = -1;
4256                 else
4257                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
4258                 param->lsp_stripe_pattern =
4259                                 llapi_pattern_to_lov(lsa.lsa_pattern);
4260                 if (param->lsp_stripe_pattern == EINVAL) {
4261                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
4262                                 argv[0]);
4263                         free(param);
4264                         goto usage_error;
4265                 }
4266                 param->lsp_pool = lsa.lsa_pool_name;
4267                 param->lsp_is_specific = false;
4268
4269                 if (lsa.lsa_nr_tgts > 0) {
4270                         param->lsp_is_specific = true;
4271                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
4272                         memcpy(param->lsp_osts, tgts,
4273                                sizeof(*tgts) * lsa.lsa_nr_tgts);
4274                 }
4275         }
4276
4277         if (from_yaml) {
4278                 /* generate a layout from a YAML template */
4279                 result = lfs_comp_create_from_yaml(template, &layout,
4280                                                    &lsa, tgts);
4281                 if (result) {
4282                         fprintf(stderr,
4283                                 "error: %s: can't create composite layout from template file %s\n",
4284                                 argv[0], template);
4285                         goto error;
4286                 }
4287         }
4288
4289         if (layout != NULL || mirror_list != NULL) {
4290                 if (mirror_list)
4291                         result = mirror_adjust_first_extents(mirror_list);
4292                 else
4293                         result = layout_adjust_first_extent(fname, layout,
4294                                                             comp_add);
4295                 if (result == -ENODATA)
4296                         comp_add = 0;
4297                 else if (result != 0) {
4298                         fprintf(stderr, "error: %s: invalid layout\n",
4299                                 progname);
4300                         goto error;
4301                 }
4302         }
4303
4304         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
4305                 if (from_copy) {
4306                         layout = llapi_layout_get_by_path(template ?: fname, 0);
4307                         if (!layout) {
4308                                 fprintf(stderr,
4309                                         "%s: can't create composite layout from file %s: %s\n",
4310                                         progname, template ?: fname,
4311                                         strerror(errno));
4312                                 result = -errno;
4313                                 goto error;
4314                         }
4315                 }
4316
4317                 if (migrate_mdt_mode) {
4318                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
4319                 } else if (migrate_mode) {
4320                         result = lfs_migrate(fname, migration_flags, param,
4321                                              layout);
4322                 } else if (comp_set != 0) {
4323                         result = lfs_component_set(fname, comp_id,
4324                                                    lsa.lsa_pool_name,
4325                                                    lsa.lsa_comp_flags,
4326                                                    lsa.lsa_comp_neg_flags);
4327                 } else if (comp_del != 0) {
4328                         result = lfs_component_del(fname, comp_id,
4329                                                    lsa.lsa_comp_flags,
4330                                                    lsa.lsa_comp_neg_flags);
4331                 } else if (comp_add != 0) {
4332                         result = lfs_component_add(fname, layout);
4333                 } else if (opc == SO_MIRROR_CREATE) {
4334                         result = mirror_create(fname, mirror_list);
4335                 } else if (opc == SO_MIRROR_EXTEND) {
4336                         result = mirror_extend(fname, mirror_list,
4337                                                mirror_flags);
4338                 } else if (opc == SO_MIRROR_SPLIT || opc == SO_MIRROR_DELETE) {
4339                         if (!mirror_id && !comp_id && !lsa.lsa_pool_name) {
4340                                 fprintf(stderr,
4341                                         "%s: no mirror id, component id, or pool name specified to delete from '%s'\n",
4342                                         progname, fname);
4343                                 goto usage_error;
4344                         }
4345                         if (lsa.lsa_pool_name)
4346                                 mirror_flags |= MF_COMP_POOL;
4347                         else if (mirror_id != 0)
4348                                 comp_id = mirror_id;
4349                         else
4350                                 mirror_flags |= MF_COMP_ID;
4351                         if (has_m_file && !strcmp(fname, mirror_list->m_file)) {
4352                                 fprintf(stderr,
4353                                         "%s: the file specified by -f cannot be same as the source file '%s'\n",
4354                                         progname, fname);
4355                                 goto usage_error;
4356                         }
4357                         result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
4358                                               mirror_flags,
4359                                               has_m_file ? mirror_list->m_file :
4360                                               NULL);
4361                 } else if (layout) {
4362                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
4363                                                       mode, layout);
4364                         if (result >= 0) {
4365                                 close(result);
4366                                 result = 0;
4367                         }
4368                 } else if (foreign_mode) {
4369                         result = llapi_file_create_foreign(fname, mode, type,
4370                                                            flags, xattr);
4371                         if (result >= 0) {
4372                                 close(result);
4373                                 result = 0;
4374                         }
4375                 } else {
4376                         result = llapi_file_open_param(fname,
4377                                                        O_CREAT | O_WRONLY,
4378                                                        mode, param);
4379                         if (result >= 0) {
4380                                 close(result);
4381                                 result = 0;
4382                         }
4383                 }
4384                 if (result) {
4385                         /* Save the first error encountered. */
4386                         if (result2 == 0)
4387                                 result2 = result;
4388                         continue;
4389                 }
4390         }
4391
4392         if (mode_opt)
4393                 umask(previous_umask);
4394
4395         free(param);
4396         free(migrate_mdt_param.fp_lmv_md);
4397         llapi_layout_free(layout);
4398         lfs_mirror_list_free(mirror_list);
4399         return result2;
4400 usage_error:
4401         result = CMD_HELP;
4402 error:
4403         llapi_layout_free(layout);
4404         lfs_mirror_list_free(mirror_list);
4405         return result;
4406 }
4407
4408 static int lfs_poollist(int argc, char **argv)
4409 {
4410         if (argc != 2)
4411                 return CMD_HELP;
4412
4413         return llapi_poollist(argv[1]);
4414 }
4415
4416 #define FP_DEFAULT_TIME_MARGIN (24 * 60 * 60)
4417 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
4418                        char *str)
4419 {
4420         long long t = 0;
4421         int sign = 0;
4422         char *endptr = "AD";
4423         char *timebuf;
4424
4425         if (str[0] == '+')
4426                 sign = 1;
4427         else if (str[0] == '-')
4428                 sign = -1;
4429
4430         if (sign)
4431                 str++;
4432
4433         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
4434                 long long val = strtoll(timebuf, &endptr, 0);
4435                 int unit = 1;
4436
4437                 switch (*endptr) {
4438                 case  'y':
4439                         unit *= 52; /* 52 weeks + 1 day below */
4440                         fallthrough;
4441                 case  'w':
4442                         unit *= 7;
4443                         if (param->fp_time_margin == FP_DEFAULT_TIME_MARGIN)
4444                                 param->fp_time_margin *= (1 + unit / 52);
4445                         unit += (*endptr == 'y'); /* +1 day for 365 days/year */
4446                         fallthrough;
4447                 case '\0': /* days are default unit if none used */
4448                         fallthrough;
4449                 case  'd':
4450                         unit *= 24;
4451                         fallthrough;
4452                 case  'h':
4453                         unit *= 60;
4454                         fallthrough;
4455                 case  'm':
4456                         unit *= 60;
4457                         fallthrough;
4458                 case  's':
4459                         break;
4460                         /* don't need to multiply by 1 for seconds */
4461                 default:
4462                         fprintf(stderr,
4463                                 "%s find: bad time string '%s': %s\n",
4464                                 progname, timebuf, strerror(EINVAL));
4465                         return LONG_MAX;
4466                 }
4467
4468                 if (param->fp_time_margin == 0 ||
4469                     (*endptr && unit < param->fp_time_margin))
4470                         param->fp_time_margin = unit;
4471
4472                 t += val * unit;
4473         }
4474         if (*time < t) {
4475                 if (sign != 0)
4476                         str--;
4477                 fprintf(stderr, "%s find: bad time '%s': too large\n",
4478                         progname, str);
4479                 return LONG_MAX;
4480         }
4481
4482         *set = *time - t;
4483
4484         return sign;
4485 }
4486
4487 static int str2quotaid(__u32 *id, const char *arg)
4488 {
4489         unsigned long int projid_tmp = 0;
4490         char *endptr = NULL;
4491
4492         projid_tmp = strtoul(arg, &endptr, 10);
4493         if (*endptr != '\0')
4494                 return -EINVAL;
4495         /* UINT32_MAX is not allowed - see projid_valid()/INVALID_PROJID */
4496         if (projid_tmp >= UINT32_MAX)
4497                 return -ERANGE;
4498
4499         *id = projid_tmp;
4500         return 0;
4501 }
4502
4503 static int name2uid(unsigned int *id, const char *name)
4504 {
4505         struct passwd *passwd;
4506
4507         passwd = getpwnam(name);
4508         if (!passwd)
4509                 return -ENOENT;
4510         *id = passwd->pw_uid;
4511
4512         return 0;
4513 }
4514
4515 static int name2gid(unsigned int *id, const char *name)
4516 {
4517         struct group *group;
4518
4519         group = getgrnam(name);
4520         if (!group)
4521                 return -ENOENT;
4522         *id = group->gr_gid;
4523
4524         return 0;
4525 }
4526
4527 static inline int name2projid(unsigned int *id, const char *name)
4528 {
4529         return -ENOTSUP;
4530 }
4531
4532 static int uid2name(char **name, unsigned int id)
4533 {
4534         struct passwd *passwd;
4535
4536         passwd = getpwuid(id);
4537         if (!passwd)
4538                 return -ENOENT;
4539         *name = passwd->pw_name;
4540
4541         return 0;
4542 }
4543
4544 static inline int gid2name(char **name, unsigned int id)
4545 {
4546         struct group *group;
4547
4548         group = getgrgid(id);
4549         if (!group)
4550                 return -ENOENT;
4551         *name = group->gr_name;
4552
4553         return 0;
4554 }
4555
4556 static int name2layout(__u32 *layout, char *name)
4557 {
4558         char *ptr, *layout_name;
4559
4560         *layout = 0;
4561         for (ptr = name; ; ptr = NULL) {
4562                 layout_name = strtok(ptr, ",");
4563                 if (!layout_name)
4564                         break;
4565                 if (strcmp(layout_name, "released") == 0)
4566                         *layout |= LOV_PATTERN_F_RELEASED;
4567                 else if (strcmp(layout_name, "raid0") == 0)
4568                         *layout |= LOV_PATTERN_RAID0;
4569                 else if (strcmp(layout_name, "mdt") == 0)
4570                         *layout |= LOV_PATTERN_MDT;
4571                 else if (strcmp(layout_name, "overstriping") == 0)
4572                         *layout |= LOV_PATTERN_OVERSTRIPING;
4573                 else
4574                         return -1;
4575         }
4576         return 0;
4577 }
4578
4579 static int parse_symbolic(const char *input, mode_t *outmode, const char **end)
4580 {
4581         int loop;
4582         int user, group, other;
4583         int who, all;
4584         char c, op;
4585         mode_t perm;
4586         mode_t usermask;
4587         mode_t previous_flags;
4588
4589         user = group = other = 0;
4590         all = 0;
4591         loop = 1;
4592         perm = 0;
4593         previous_flags = 0;
4594         *end = input;
4595         usermask = 0;
4596
4597         while (loop) {
4598                 switch (*input) {
4599                 case 'u':
4600                         user = 1;
4601                         break;
4602                 case 'g':
4603                         group = 1;
4604                         break;
4605                 case 'o':
4606                         other = 1;
4607                         break;
4608                 case 'a':
4609                         user = group = other = 1;
4610                         all = 1;
4611                         break;
4612                 default:
4613                         loop = 0;
4614                 }
4615
4616                 if (loop)
4617                         input++;
4618         }
4619
4620         who = user || group || other;
4621         if (!who) {
4622                 /* get the umask */
4623                 usermask = umask(0022);
4624                 umask(usermask);
4625                 usermask &= 07777;
4626         }
4627
4628         if (*input == '-' || *input == '+' || *input == '=')
4629                 op = *input++;
4630         else
4631                 /* operation is required */
4632                 return -1;
4633
4634         /* get the flags in *outmode */
4635         switch (*input) {
4636         case 'u':
4637                 previous_flags = (*outmode & 0700);
4638                 perm |= user  ? previous_flags : 0;
4639                 perm |= group ? (previous_flags >> 3) : 0;
4640                 perm |= other ? (previous_flags >> 6) : 0;
4641                 input++;
4642                 goto write_perm;
4643         case 'g':
4644                 previous_flags = (*outmode & 0070);
4645                 perm |= user  ? (previous_flags << 3) : 0;
4646                 perm |= group ? previous_flags : 0;
4647                 perm |= other ? (previous_flags >> 3) : 0;
4648                 input++;
4649                 goto write_perm;
4650         case 'o':
4651                 previous_flags = (*outmode & 0007);
4652                 perm |= user  ? (previous_flags << 6) : 0;
4653                 perm |= group ? (previous_flags << 3) : 0;
4654                 perm |= other ? previous_flags : 0;
4655                 input++;
4656                 goto write_perm;
4657         default:
4658                 break;
4659         }
4660
4661         /* this part is optional,
4662          * if empty perm = 0 and *outmode is not modified
4663          */
4664         loop = 1;
4665         while (loop) {
4666                 c = *input;
4667                 switch (c) {
4668                 case 'r':
4669                         perm |= user  ? 0400 : 0;
4670                         perm |= group ? 0040 : 0;
4671                         perm |= other ? 0004 : 0;
4672                         /* set read permission for uog except for umask's
4673                          * permissions
4674                          */
4675                         perm |= who   ? 0 : (0444 & ~usermask);
4676                         break;
4677                 case 'w':
4678                         perm |= user  ? 0200 : 0;
4679                         perm |= group ? 0020 : 0;
4680                         perm |= other ? 0002 : 0;
4681                         /* set write permission for uog except for umask'
4682                          * permissions
4683                          */
4684                         perm |= who   ? 0 : (0222 & ~usermask);
4685                         break;
4686                 case 'x':
4687                         perm |= user  ? 0100 : 0;
4688                         perm |= group ? 0010 : 0;
4689                         perm |= other ? 0001 : 0;
4690                         /* set execute permission for uog except for umask'
4691                          * permissions
4692                          */
4693                         perm |= who   ? 0 : (0111 & ~usermask);
4694                         break;
4695                 case 'X':
4696                         /*
4697                          * Adds execute permission to 'u', 'g' and/or 'g' if
4698                          * specified and either 'u', 'g' or 'o' already has
4699                          * execute permissions.
4700                          */
4701                         if ((*outmode & 0111) != 0) {
4702                                 perm |= user  ? 0100 : 0;
4703                                 perm |= group ? 0010 : 0;
4704                                 perm |= other ? 0001 : 0;
4705                                 perm |= !who  ? 0111 : 0;
4706                         }
4707                         break;
4708                 case 's':
4709                         /* s is ignored if o is given, but it's not an error */
4710                         if (other && !group && !user)
4711                                 break;
4712                         perm |= user  ? S_ISUID : 0;
4713                         perm |= group ? S_ISGID : 0;
4714                         break;
4715                 case 't':
4716                         /* 't' should be used when 'a' is given
4717                          * or who is empty
4718                          */
4719                         perm |= (!who || all) ? S_ISVTX : 0;
4720                         /* using ugo with t is not an error */
4721                         break;
4722                 default:
4723                         loop = 0;
4724                         break;
4725                 }
4726                 if (loop)
4727                         input++;
4728         }
4729
4730 write_perm:
4731         /* uog flags should be only one character long */
4732         if (previous_flags && (*input != '\0' && *input != ','))
4733                 return -1;
4734
4735         switch (op) {
4736         case '-':
4737                 /* remove the flags from outmode */
4738                 *outmode &= ~perm;
4739                 break;
4740         case '+':
4741                 /* add the flags to outmode */
4742                 *outmode |= perm;
4743                 break;
4744         case '=':
4745                 /* set the flags of outmode to perm */
4746                 if (perm != 0)
4747                         *outmode = perm;
4748                 break;
4749         }
4750
4751         *end = input;
4752         return 0;
4753 }
4754
4755 static int str2mode_t(const char *input, mode_t *outmode)
4756 {
4757         int ret;
4758         const char *iter;
4759
4760         ret = 0;
4761
4762         if (*input >= '0' && *input <= '7') {
4763                 /* parse octal representation */
4764                 char *end;
4765
4766                 iter = input;
4767
4768                 /* look for invalid digits in octal representation */
4769                 while (isdigit(*iter))
4770                         if (*iter++ > '7')
4771                                 return -1;
4772
4773                 errno = 0;
4774                 *outmode = strtoul(input, &end, 8);
4775
4776                 if (errno != 0 || *outmode > 07777) {
4777                         *outmode = 0;
4778                         ret = -1;
4779                 }
4780
4781         } else if (*input == '8' || *input == '9') {
4782                 /* error: invalid octal number */
4783                 ret = -1;
4784         } else {
4785                 /* parse coma seperated list of symbolic representation */
4786                 int rc;
4787                 const char *end;
4788
4789                 *outmode = 0;
4790                 rc = 0;
4791                 end = NULL;
4792
4793                 do {
4794                         rc = parse_symbolic(input, outmode, &end);
4795                         if (rc)
4796                                 return -1;
4797
4798                         input = end+1;
4799                 } while (*end == ',');
4800
4801                 if (*end != '\0')
4802                         ret = -1;
4803         }
4804         return ret;
4805 }
4806
4807 static int lfs_find(int argc, char **argv)
4808 {
4809         int c, rc;
4810         int ret = 0;
4811         time_t t;
4812         struct find_param param = {
4813                 .fp_max_depth = -1,
4814                 .fp_quiet = 1,
4815                 .fp_time_margin = FP_DEFAULT_TIME_MARGIN,
4816         };
4817         struct option long_opts[] = {
4818         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
4819         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
4820         { .val = 'B',   .name = "btime",        .has_arg = required_argument },
4821         { .val = 'B',   .name = "Btime",        .has_arg = required_argument },
4822         { .val = LFS_COMP_COUNT_OPT,
4823                         .name = "comp-count",   .has_arg = required_argument },
4824         { .val = LFS_COMP_COUNT_OPT,
4825                         .name = "component-count",
4826                                                 .has_arg = required_argument },
4827         { .val = LFS_COMP_FLAGS_OPT,
4828                         .name = "comp-flags",   .has_arg = required_argument },
4829         { .val = LFS_COMP_FLAGS_OPT,
4830                         .name = "component-flags",
4831                                                 .has_arg = required_argument },
4832         { .val = LFS_COMP_START_OPT,
4833                         .name = "comp-start",   .has_arg = required_argument },
4834         { .val = LFS_COMP_START_OPT,
4835                         .name = "component-start",
4836                                                 .has_arg = required_argument },
4837         { .val = LFS_MIRROR_STATE_OPT,
4838                         .name = "mirror-state", .has_arg = required_argument },
4839         { .val = LFS_NEWERXY_OPT,
4840                         .name = "newer",        .has_arg = required_argument},
4841         { .val = LFS_NEWERXY_OPT,
4842                         .name = "neweraa",      .has_arg = required_argument},
4843         { .val = LFS_NEWERXY_OPT,
4844                         .name = "neweram",      .has_arg = required_argument},
4845         { .val = LFS_NEWERXY_OPT,
4846                         .name = "newerac",      .has_arg = required_argument},
4847         { .val = LFS_NEWERXY_OPT,
4848                         .name = "newerab",      .has_arg = required_argument},
4849         { .val = LFS_NEWERXY_OPT,
4850                         .name = "newerma",      .has_arg = required_argument},
4851         { .val = LFS_NEWERXY_OPT,
4852                         .name = "newermm",      .has_arg = required_argument},
4853         { .val = LFS_NEWERXY_OPT,
4854                         .name = "newermc",      .has_arg = required_argument},
4855         { .val = LFS_NEWERXY_OPT,
4856                         .name = "newermb",      .has_arg = required_argument},
4857         { .val = LFS_NEWERXY_OPT,
4858                         .name = "newerca",      .has_arg = required_argument},
4859         { .val = LFS_NEWERXY_OPT,
4860                         .name = "newercm",      .has_arg = required_argument},
4861         { .val = LFS_NEWERXY_OPT,
4862                         .name = "newercc",      .has_arg = required_argument},
4863         { .val = LFS_NEWERXY_OPT,
4864                         .name = "newercb",      .has_arg = required_argument},
4865         { .val = LFS_NEWERXY_OPT,
4866                         .name = "newerba",      .has_arg = required_argument},
4867         { .val = LFS_NEWERXY_OPT,
4868                         .name = "newerbm",      .has_arg = required_argument},
4869         { .val = LFS_NEWERXY_OPT,
4870                         .name = "newerbc",      .has_arg = required_argument},
4871         { .val = LFS_NEWERXY_OPT,
4872                         .name = "newerbb",      .has_arg = required_argument},
4873         { .val = LFS_NEWERXY_OPT,
4874                         .name = "newerBa",      .has_arg = required_argument},
4875         { .val = LFS_NEWERXY_OPT,
4876                         .name = "newerBm",      .has_arg = required_argument},
4877         { .val = LFS_NEWERXY_OPT,
4878                         .name = "newerBc",      .has_arg = required_argument},
4879         { .val = LFS_NEWERXY_OPT,
4880                         .name = "newerBB",      .has_arg = required_argument},
4881         { .val = LFS_NEWERXY_OPT,
4882                         .name = "newerat",      .has_arg = required_argument},
4883         { .val = LFS_NEWERXY_OPT,
4884                         .name = "newermt",      .has_arg = required_argument},
4885         { .val = LFS_NEWERXY_OPT,
4886                         .name = "newerct",      .has_arg = required_argument},
4887         { .val = LFS_NEWERXY_OPT,
4888                         .name = "newerbt",      .has_arg = required_argument},
4889         { .val = LFS_NEWERXY_OPT,
4890                         .name = "newerBt",      .has_arg = required_argument},
4891         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
4892         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
4893         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
4894 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
4895         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
4896         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
4897         { .val = 'E',   .name = "component-end",
4898                                                 .has_arg = required_argument },
4899 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
4900         { .val = LFS_LAYOUT_FOREIGN_OPT,
4901                         .name = "foreign",      .has_arg = optional_argument},
4902         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
4903         { .val = 'G',   .name = "group",        .has_arg = required_argument },
4904         { .val = 'h',   .name = "help",         .has_arg = no_argument },
4905         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4906         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
4907         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
4908 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
4909         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
4910         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
4911         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
4912         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4913         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
4914         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
4915         { .val = 'n',   .name = "name",         .has_arg = required_argument },
4916         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
4917 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
4918         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4919         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4920         { .val = LFS_FIND_PERM,
4921                         .name = "perm",         .has_arg = required_argument },
4922         /* no short option for pool yet, can be 'p' after 2.18 */
4923         { .val = LFS_POOL_OPT,
4924                         .name = "pool",         .has_arg = required_argument },
4925         { .val = '0',   .name = "print0",       .has_arg = no_argument },
4926         { .val = 'P',   .name = "print",        .has_arg = no_argument },
4927         { .val = LFS_PRINTF_OPT,
4928                         .name = "printf",       .has_arg = required_argument },
4929         { .val = LFS_PROJID_OPT,
4930                         .name = "projid",       .has_arg = required_argument },
4931 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
4932 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
4933 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
4934         { .val = 's',   .name = "size",         .has_arg = required_argument },
4935         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
4936         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
4937         { .val = 't',   .name = "type",         .has_arg = required_argument },
4938         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4939         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
4940         { .val = 'U',   .name = "user",         .has_arg = required_argument },
4941 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
4942         { .val = 'z',   .name = "extension-size",
4943                                                 .has_arg = required_argument },
4944         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument },
4945         { .name = NULL } };
4946         int optidx = 0;
4947         int pathstart = -1;
4948         int pathend = -1;
4949         int pathbad = -1;
4950         int neg_opt = 0;
4951         time_t *xtime;
4952         int *xsign;
4953         int isoption;
4954         char *endptr;
4955
4956         time(&t);
4957
4958         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
4959         while ((c = getopt_long_only(argc, argv,
4960                 "-0A:b:B:c:C:D:E:g:G:hH:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:z:",
4961                 long_opts, &optidx)) >= 0) {
4962                 xtime = NULL;
4963                 xsign = NULL;
4964                 if (neg_opt)
4965                         --neg_opt;
4966                 /* '!' is part of option */
4967                 /*
4968                  * when getopt_long_only() finds a string which is not
4969                  * an option nor a known option argument it returns 1
4970                  * in that case if we already have found pathstart and pathend
4971                  * (i.e. we have the list of pathnames),
4972                  * the only supported value is "!"
4973                  */
4974                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4975                 if (!isoption && pathend != -1) {
4976                         fprintf(stderr,
4977                                 "err: %s: filename|dirname must either precede options or follow options\n",
4978                                 argv[0]);
4979                         ret = CMD_HELP;
4980                         goto err;
4981                 }
4982                 if (!isoption && pathstart == -1)
4983                         pathstart = optind - 1;
4984                 if (isoption && pathstart != -1 && pathend == -1)
4985                         pathend = optind - 2;
4986                 switch (c) {
4987                 case 0:
4988                         /* Long options. */
4989                         break;
4990                 case 1:
4991                         /*
4992                          * unknown; opt is "!" or path component,
4993                          * checking done above.
4994                          */
4995                         if (strcmp(optarg, "!") == 0)
4996                                 neg_opt = 2;
4997                         break;
4998                 case 'A':
4999                         xtime = &param.fp_atime;
5000                         xsign = &param.fp_asign;
5001                         param.fp_exclude_atime = !!neg_opt;
5002                         /* no break, this falls through to 'B' for btime */
5003                         fallthrough;
5004                 case 'B':
5005                         if (c == 'B') {
5006                                 xtime = &param.fp_btime;
5007                                 xsign = &param.fp_bsign;
5008                                 param.fp_exclude_btime = !!neg_opt;
5009                         }
5010                         /* no break, this falls through to 'C' for ctime */
5011                         fallthrough;
5012                 case 'C':
5013                         if (c == 'C') {
5014                                 xtime = &param.fp_ctime;
5015                                 xsign = &param.fp_csign;
5016                                 param.fp_exclude_ctime = !!neg_opt;
5017                         }
5018                         /* no break, this falls through to 'M' for mtime */
5019                         fallthrough;
5020                 case 'M':
5021                         if (c == 'M') {
5022                                 xtime = &param.fp_mtime;
5023                                 xsign = &param.fp_msign;
5024                                 param.fp_exclude_mtime = !!neg_opt;
5025                         }
5026                         rc = set_time(&param, &t, xtime, optarg);
5027                         if (rc == LONG_MAX) {
5028                                 ret = -1;
5029                                 goto err;
5030                         }
5031                         if (rc)
5032                                 *xsign = rc;
5033                         break;
5034                 case 'b':
5035                         if (optarg[0] == '+') {
5036                                 param.fp_blocks_sign = -1;
5037                                 optarg++;
5038                         } else if (optarg[0] == '-') {
5039                                 param.fp_blocks_sign =  1;
5040                                 optarg++;
5041                         }
5042
5043                         param.fp_blocks_units = 1024;
5044                         ret = llapi_parse_size(optarg, &param.fp_blocks,
5045                                                &param.fp_blocks_units, 0);
5046                         if (ret) {
5047                                 fprintf(stderr, "error: bad blocks '%s'\n",
5048                                         optarg);
5049                                 goto err;
5050                         }
5051                         param.fp_check_blocks = 1;
5052                         param.fp_exclude_blocks = !!neg_opt;
5053                         break;
5054                 case LFS_COMP_COUNT_OPT:
5055                         if (optarg[0] == '+') {
5056                                 param.fp_comp_count_sign = -1;
5057                                 optarg++;
5058                         } else if (optarg[0] == '-') {
5059                                 param.fp_comp_count_sign =  1;
5060                                 optarg++;
5061                         }
5062
5063                         errno = 0;
5064                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
5065                         if (errno != 0 || *endptr != '\0' ||
5066                             param.fp_comp_count > UINT32_MAX) {
5067                                 fprintf(stderr,
5068                                         "error: bad component count '%s'\n",
5069                                         optarg);
5070                                 goto err;
5071                         }
5072                         param.fp_check_comp_count = 1;
5073                         param.fp_exclude_comp_count = !!neg_opt;
5074                         break;
5075                 case LFS_COMP_FLAGS_OPT:
5076                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
5077                                             &param.fp_comp_neg_flags);
5078                         if (rc) {
5079                                 fprintf(stderr,
5080                                         "error: bad component flags '%s'\n",
5081                                         optarg);
5082                                 goto err;
5083                         }
5084                         param.fp_check_comp_flags = 1;
5085                         if (neg_opt) {
5086                                 __u32 flags = param.fp_comp_neg_flags;
5087
5088                                 param.fp_comp_neg_flags = param.fp_comp_flags;
5089                                 param.fp_comp_flags = flags;
5090                         }
5091                         break;
5092                 case LFS_COMP_START_OPT:
5093                         if (optarg[0] == '+') {
5094                                 param.fp_comp_start_sign = -1;
5095                                 optarg++;
5096                         } else if (optarg[0] == '-') {
5097                                 param.fp_comp_start_sign =  1;
5098                                 optarg++;
5099                         }
5100
5101                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
5102                                               &param.fp_comp_start_units, 0);
5103                         if (rc) {
5104                                 fprintf(stderr,
5105                                         "error: bad component start '%s'\n",
5106                                         optarg);
5107                                 goto err;
5108                         }
5109                         param.fp_check_comp_start = 1;
5110                         param.fp_exclude_comp_start = !!neg_opt;
5111                         break;
5112                 case LFS_MIRROR_STATE_OPT:
5113                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
5114                                               &param.fp_mirror_neg_state);
5115                         if (rc) {
5116                                 fprintf(stderr,
5117                                         "error: bad mirrored file state '%s'\n",
5118                                         optarg);
5119                                 goto err;
5120                         }
5121                         param.fp_check_mirror_state = 1;
5122                         if (neg_opt) {
5123                                 __u16 state = param.fp_mirror_neg_state;
5124
5125                                 param.fp_mirror_neg_state =
5126                                         param.fp_mirror_state;
5127                                 param.fp_mirror_state = state;
5128                         }
5129                         break;
5130                 case 'c':
5131                         if (optarg[0] == '+') {
5132                                 param.fp_stripe_count_sign = -1;
5133                                 optarg++;
5134                         } else if (optarg[0] == '-') {
5135                                 param.fp_stripe_count_sign =  1;
5136                                 optarg++;
5137                         }
5138
5139                         errno = 0;
5140                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
5141                         if (errno != 0 || *endptr != '\0' ||
5142                             param.fp_stripe_count > LOV_MAX_STRIPE_COUNT) {
5143                                 fprintf(stderr,
5144                                         "error: bad stripe_count '%s'\n",
5145                                         optarg);
5146                                 ret = -1;
5147                                 goto err;
5148                         }
5149                         param.fp_check_stripe_count = 1;
5150                         param.fp_exclude_stripe_count = !!neg_opt;
5151                         break;
5152                 case 'D':
5153                         errno = 0;
5154                         param.fp_max_depth = strtol(optarg, 0, 0);
5155                         if (errno != 0 || param.fp_max_depth < 0) {
5156                                 fprintf(stderr,
5157                                         "error: bad maxdepth '%s'\n",
5158                                         optarg);
5159                                 ret = -1;
5160                                 goto err;
5161                         }
5162                         break;
5163                 case 'E':
5164                         if (optarg[0] == '+') {
5165                                 param.fp_comp_end_sign = -1;
5166                                 optarg++;
5167                         } else if (optarg[0] == '-') {
5168                                 param.fp_comp_end_sign =  1;
5169                                 optarg++;
5170                         }
5171
5172                         if (arg_is_eof(optarg)) {
5173                                 param.fp_comp_end = LUSTRE_EOF;
5174                                 param.fp_comp_end_units = 1;
5175                                 rc = 0;
5176                         } else {
5177                                 rc = llapi_parse_size(optarg,
5178                                                 &param.fp_comp_end,
5179                                                 &param.fp_comp_end_units, 0);
5180                                 /* assume units of KB if too small */
5181                                 if (param.fp_comp_end < 4096)
5182                                         param.fp_comp_end *= 1024;
5183                         }
5184                         if (rc) {
5185                                 fprintf(stderr,
5186                                         "error: bad component end '%s'\n",
5187                                         optarg);
5188                                 goto err;
5189                         }
5190                         param.fp_check_comp_end = 1;
5191                         param.fp_exclude_comp_end = !!neg_opt;
5192                         break;
5193                 case LFS_LAYOUT_FOREIGN_OPT: {
5194                         /* all types by default */
5195                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
5196
5197                         if (optarg) {
5198                                 /* check pure numeric */
5199                                 type = strtoul(optarg, &endptr, 0);
5200                                 if (*endptr) {
5201                                         /* check name */
5202                                         type = check_foreign_type_name(optarg);
5203                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
5204                                                 fprintf(stderr,
5205                                                         "%s %s: unknown foreign type '%s'\n",
5206                                                         progname, argv[0],
5207                                                         optarg);
5208                                                 return CMD_HELP;
5209                                         }
5210                                 } else if (type >= UINT32_MAX) {
5211                                         fprintf(stderr,
5212                                                 "%s %s: invalid foreign type '%s'\n",
5213                                                 progname, argv[0], optarg);
5214                                         return CMD_HELP;
5215                                 }
5216                         }
5217                         param.fp_foreign_type = type;
5218                         param.fp_check_foreign = 1;
5219                         param.fp_exclude_foreign = !!neg_opt;
5220                         break;
5221                 }
5222                 case LFS_NEWERXY_OPT: {
5223                         char x = 'm';
5224                         char y = 'm';
5225                         int xidx;
5226                         int negidx;
5227                         time_t *newery;
5228                         time_t ref = time(NULL);
5229
5230                         /* no need to check bad options, they won't get here */
5231                         if (strlen(long_opts[optidx].name) == 7) {
5232                                 x = long_opts[optidx].name[5];
5233                                 y = long_opts[optidx].name[6];
5234                         }
5235
5236                         if (y == 't') {
5237                                 static const char *const fmts[] = {
5238                                         "%Y-%m-%d %H:%M:%S",
5239                                         "%Y-%m-%d %H:%M",
5240                                         "%Y-%m-%d",
5241                                         "%H:%M:%S", /* sometime today */
5242                                         "%H:%M",
5243                                         "@%s",
5244                                         "%s",
5245                                         NULL };
5246                                 struct tm tm;
5247                                 bool found = false;
5248                                 int i;
5249
5250                                 for (i = 0; fmts[i] != NULL; i++) {
5251                                         char *ptr;
5252
5253                                         /* Init for times relative to today */
5254                                         if (strncmp(fmts[i], "%H", 2) == 0)
5255                                                 localtime_r(&ref, &tm);
5256                                         else
5257                                                 memset(&tm, 0, sizeof(tm));
5258                                         ptr = strptime(optarg, fmts[i], &tm);
5259                                         /* Skip spaces */
5260                                         while (ptr && isspace(*ptr))
5261                                                 ptr++;
5262                                         if (ptr == optarg + strlen(optarg)) {
5263                                                 found = true;
5264                                                 break;
5265                                         }
5266                                 }
5267
5268                                 if (!found) {
5269                                         fprintf(stderr,
5270                                                 "%s: invalid time '%s'\n",
5271                                                 progname, optarg);
5272                                         fprintf(stderr,
5273                                                 "supported formats are:\n  ");
5274                                         for (i = 0; fmts[i] != NULL; i++)
5275                                                 fprintf(stderr, "'%s', ",
5276                                                         fmts[i]);
5277                                         fprintf(stderr, "\n");
5278                                         ret = -EINVAL;
5279                                         goto err;
5280                                 }
5281
5282                                 ref = mktime(&tm);
5283                         } else if (y == 'b' || y == 'B') {
5284                                 lstatx_t stx;
5285
5286                                 rc = llapi_get_lum_file(optarg, NULL, &stx,
5287                                                         NULL, 0);
5288                                 if (rc || !(stx.stx_mask & STATX_BTIME)) {
5289                                         if (!(stx.stx_mask & STATX_BTIME))
5290                                                 ret = -EOPNOTSUPP;
5291                                         else
5292                                                 ret = -errno;
5293                                         fprintf(stderr,
5294                                                 "%s: get btime failed '%s': %s\n",
5295                                                 progname, optarg,
5296                                                 strerror(-ret));
5297                                         goto err;
5298                                 }
5299
5300                                 ref = stx.stx_btime.tv_sec;
5301                         } else {
5302                                 struct stat statbuf;
5303
5304                                 if (stat(optarg, &statbuf) < 0) {
5305                                         fprintf(stderr,
5306                                                 "%s: cannot stat file '%s': %s\n",
5307                                                 progname, optarg,
5308                                                 strerror(errno));
5309                                         ret = -errno;
5310                                         goto err;
5311                                 }
5312
5313                                 switch (y) {
5314                                 case 'a':
5315                                         ref = statbuf.st_atime;
5316                                         break;
5317                                 case 'm':
5318                                         ref = statbuf.st_mtime;
5319                                         break;
5320                                 case 'c':
5321                                         ref = statbuf.st_ctime;
5322                                         break;
5323                                 default:
5324                                         fprintf(stderr,
5325                                                 "%s: invalid Y argument: '%c'\n",
5326                                                 progname, x);
5327                                         ret = -EINVAL;
5328                                         goto err;
5329                                 }
5330                         }
5331
5332                         switch (x) {
5333                         case 'a':
5334                                 xidx = NEWERXY_ATIME;
5335                                 break;
5336                         case 'm':
5337                                 xidx = NEWERXY_MTIME;
5338                                 break;
5339                         case 'c':
5340                                 xidx = NEWERXY_CTIME;
5341                                 break;
5342                         case 'b':
5343                         case 'B':
5344                                 xidx = NEWERXY_BTIME;
5345                                 break;
5346                         default:
5347                                 fprintf(stderr,
5348                                         "%s: invalid X argument: '%c'\n",
5349                                         progname, x);
5350                                 ret = -EINVAL;
5351                                 goto err;
5352                         }
5353
5354                         negidx = !!neg_opt;
5355                         newery = &param.fp_newery[xidx][negidx];
5356
5357                         if (*newery == 0) {
5358                                 *newery = ref;
5359                         } else {
5360                                 if (negidx)
5361                                         *newery = *newery > ref ? ref : *newery;
5362                                 else
5363                                         *newery = *newery > ref ? *newery : ref;
5364                         }
5365                         param.fp_newerxy = 1;
5366                         break;
5367                 }
5368                 case 'g':
5369                 case 'G':
5370                         rc = name2gid(&param.fp_gid, optarg);
5371                         if (rc) {
5372                                 if (str2quotaid(&param.fp_gid, optarg)) {
5373                                         fprintf(stderr,
5374                                                 "Group/GID: %s cannot be found.\n",
5375                                                 optarg);
5376                                         ret = -1;
5377                                         goto err;
5378                                 }
5379                         }
5380                         param.fp_exclude_gid = !!neg_opt;
5381                         param.fp_check_gid = 1;
5382                         break;
5383                 case 'H':
5384                         rc = mdthash_input(optarg, &param.fp_hash_inflags,
5385                                            &param.fp_hash_exflags,
5386                                            &param.fp_hash_type);
5387                         if (rc) {
5388                                 ret = -1;
5389                                 goto err;
5390                         }
5391                         if (param.fp_hash_inflags || param.fp_hash_exflags)
5392                                 param.fp_check_hash_flag = 1;
5393                         param.fp_exclude_hash_type = !!neg_opt;
5394                         break;
5395                 case 'l':
5396                         param.fp_lazy = 1;
5397                         break;
5398                 case 'L':
5399                         ret = name2layout(&param.fp_layout, optarg);
5400                         if (ret)
5401                                 goto err;
5402                         param.fp_exclude_layout = !!neg_opt;
5403                         param.fp_check_layout = 1;
5404                         break;
5405                 case 'u':
5406                 case 'U':
5407                         rc = name2uid(&param.fp_uid, optarg);
5408                         if (rc) {
5409                                 if (str2quotaid(&param.fp_uid, optarg)) {
5410                                         fprintf(stderr,
5411                                                 "User/UID: %s cannot be found.\n",
5412                                                 optarg);
5413                                         ret = -1;
5414                                         goto err;
5415                                 }
5416                         }
5417                         param.fp_exclude_uid = !!neg_opt;
5418                         param.fp_check_uid = 1;
5419                         break;
5420                 case 'n':
5421                         param.fp_pattern = (char *)optarg;
5422                         param.fp_exclude_pattern = !!neg_opt;
5423                         break;
5424                 case 'N':
5425                         if (optarg[0] == '+') {
5426                                 param.fp_mirror_count_sign = -1;
5427                                 optarg++;
5428                         } else if (optarg[0] == '-') {
5429                                 param.fp_mirror_count_sign =  1;
5430                                 optarg++;
5431                         }
5432
5433                         errno = 0;
5434                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
5435                         if (errno != 0 || *endptr != '\0' ||
5436                             param.fp_mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
5437                                 fprintf(stderr,
5438                                         "error: bad mirror count '%s'\n",
5439                                         optarg);
5440                                 goto err;
5441                         }
5442                         param.fp_check_mirror_count = 1;
5443                         param.fp_exclude_mirror_count = !!neg_opt;
5444                         break;
5445                 case 'm':
5446                 case 'i':
5447                 case 'O': {
5448                         char *buf, *token, *next, *p;
5449                         int len = 1;
5450                         void *tmp;
5451
5452                         buf = strdup(optarg);
5453                         if (!buf) {
5454                                 ret = -ENOMEM;
5455                                 goto err;
5456                         }
5457
5458                         param.fp_exclude_obd = !!neg_opt;
5459
5460                         token = buf;
5461                         while (token && *token) {
5462                                 token = strchr(token, ',');
5463                                 if (token) {
5464                                         len++;
5465                                         token++;
5466                                 }
5467                         }
5468                         if (c == 'm') {
5469                                 param.fp_exclude_mdt = !!neg_opt;
5470                                 param.fp_num_alloc_mdts += len;
5471                                 tmp = realloc(param.fp_mdt_uuid,
5472                                               param.fp_num_alloc_mdts *
5473                                               sizeof(*param.fp_mdt_uuid));
5474                                 if (!tmp) {
5475                                         ret = -ENOMEM;
5476                                         goto err_free;
5477                                 }
5478
5479                                 param.fp_mdt_uuid = tmp;
5480                         } else {
5481                                 param.fp_exclude_obd = !!neg_opt;
5482                                 param.fp_num_alloc_obds += len;
5483                                 tmp = realloc(param.fp_obd_uuid,
5484                                               param.fp_num_alloc_obds *
5485                                               sizeof(*param.fp_obd_uuid));
5486                                 if (!tmp) {
5487                                         ret = -ENOMEM;
5488                                         goto err_free;
5489                                 }
5490
5491                                 param.fp_obd_uuid = tmp;
5492                         }
5493                         for (token = buf; token && *token; token = next) {
5494                                 struct obd_uuid *puuid;
5495
5496                                 if (c == 'm') {
5497                                         puuid =
5498                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
5499                                 } else {
5500                                         puuid =
5501                                         &param.fp_obd_uuid[param.fp_num_obds++];
5502                                 }
5503                                 p = strchr(token, ',');
5504                                 next = 0;
5505                                 if (p) {
5506                                         *p = 0;
5507                                         next = p+1;
5508                                 }
5509
5510                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
5511                                         ret = -E2BIG;
5512                                         goto err_free;
5513                                 }
5514
5515                                 strncpy(puuid->uuid, token,
5516                                         sizeof(puuid->uuid));
5517                         }
5518 err_free:
5519                         if (buf)
5520                                 free(buf);
5521                         break;
5522                 }
5523 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
5524                 case 'p':
5525 #endif
5526                 case LFS_POOL_OPT:
5527                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
5528                                 fprintf(stderr,
5529                                         "Pool name %s is too long (max %d)\n",
5530                                         optarg, LOV_MAXPOOLNAME);
5531                                 ret = -1;
5532                                 goto err;
5533                         }
5534                         /*
5535                          * We do check for empty pool because empty pool
5536                          * is used to find V1 LOV attributes
5537                          */
5538                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
5539                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
5540                         param.fp_exclude_pool = !!neg_opt;
5541                         param.fp_check_pool = 1;
5542                         break;
5543 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
5544                 case 'p': /* want this for --pool, to match getstripe/find */
5545                         fprintf(stderr,
5546                                 "warning: -p deprecated, use --print0 or -0\n");
5547 #endif
5548                 case '0':
5549                         param.fp_zero_end = 1;
5550                         break;
5551                 case 'P': /* we always print, this option is a no-op */
5552                         break;
5553                 case LFS_PRINTF_OPT:
5554                         param.fp_format_printf_str = optarg;
5555                         break;
5556                 case LFS_PROJID_OPT:
5557                         rc = name2projid(&param.fp_projid, optarg);
5558                         if (rc) {
5559                                 if (str2quotaid(&param.fp_projid, optarg)) {
5560                                         fprintf(stderr,
5561                                                 "Invalid project ID: %s\n",
5562                                                 optarg);
5563                                         ret = -1;
5564                                         goto err;
5565                                 }
5566                         }
5567                         param.fp_exclude_projid = !!neg_opt;
5568                         param.fp_check_projid = 1;
5569                         break;
5570                 case 's':
5571                         if (optarg[0] == '+') {
5572                                 param.fp_size_sign = -1;
5573                                 optarg++;
5574                         } else if (optarg[0] == '-') {
5575                                 param.fp_size_sign =  1;
5576                                 optarg++;
5577                         }
5578
5579                         ret = llapi_parse_size(optarg, &param.fp_size,
5580                                                &param.fp_size_units, 0);
5581                         if (ret) {
5582                                 fprintf(stderr, "error: bad file size '%s'\n",
5583                                         optarg);
5584                                 goto err;
5585                         }
5586                         param.fp_check_size = 1;
5587                         param.fp_exclude_size = !!neg_opt;
5588                         break;
5589                 case 'S':
5590                         if (optarg[0] == '+') {
5591                                 param.fp_stripe_size_sign = -1;
5592                                 optarg++;
5593                         } else if (optarg[0] == '-') {
5594                                 param.fp_stripe_size_sign =  1;
5595                                 optarg++;
5596                         }
5597
5598                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
5599                                                &param.fp_stripe_size_units, 0);
5600                         /* assume units of KB if too small to be valid */
5601                         if (param.fp_stripe_size < 4096)
5602                                 param.fp_stripe_size *= 1024;
5603                         if (ret) {
5604                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
5605                                         optarg);
5606                                 goto err;
5607                         }
5608                         param.fp_check_stripe_size = 1;
5609                         param.fp_exclude_stripe_size = !!neg_opt;
5610                         break;
5611                 case 't':
5612                         param.fp_exclude_type = !!neg_opt;
5613                         switch (optarg[0]) {
5614                         case 'b':
5615                                 param.fp_type = S_IFBLK;
5616                                 break;
5617                         case 'c':
5618                                 param.fp_type = S_IFCHR;
5619                                 break;
5620                         case 'd':
5621                                 param.fp_type = S_IFDIR;
5622                                 break;
5623                         case 'f':
5624                                 param.fp_type = S_IFREG;
5625                                 break;
5626                         case 'l':
5627                                 param.fp_type = S_IFLNK;
5628                                 break;
5629                         case 'p':
5630                                 param.fp_type = S_IFIFO;
5631                                 break;
5632                         case 's':
5633                                 param.fp_type = S_IFSOCK;
5634                                 break;
5635                         default:
5636                                 fprintf(stderr, "%s: bad type '%s'\n",
5637                                         progname, optarg);
5638                                 ret = CMD_HELP;
5639                                 goto err;
5640                         }
5641                         break;
5642                 case LFS_FIND_PERM:
5643                         param.fp_exclude_perm = !!neg_opt;
5644                         param.fp_perm_sign = LFS_FIND_PERM_EXACT;
5645                         if (*optarg == '/') {
5646                                 param.fp_perm_sign = LFS_FIND_PERM_ANY;
5647                                 optarg++;
5648                         } else if (*optarg == '-') {
5649                                 param.fp_perm_sign = LFS_FIND_PERM_ALL;
5650                                 optarg++;
5651                         }
5652
5653                         if (str2mode_t(optarg, &param.fp_perm)) {
5654                                 fprintf(stderr, "error: invalid mode '%s'\n",
5655                                         optarg);
5656                                 ret = -1;
5657                                 goto err;
5658                         }
5659                         break;
5660                 case 'T':
5661                         if (optarg[0] == '+') {
5662                                 param.fp_mdt_count_sign = -1;
5663                                 optarg++;
5664                         } else if (optarg[0] == '-') {
5665                                 param.fp_mdt_count_sign =  1;
5666                                 optarg++;
5667                         }
5668
5669                         errno = 0;
5670                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
5671                         if (errno != 0 || *endptr != '\0' ||
5672                             param.fp_mdt_count >= UINT32_MAX) {
5673                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
5674                                         optarg);
5675                                 ret = -1;
5676                                 goto err;
5677                         }
5678                         param.fp_check_mdt_count = 1;
5679                         param.fp_exclude_mdt_count = !!neg_opt;
5680                         break;
5681                 case 'z':
5682                         if (optarg[0] == '+') {
5683                                 param.fp_ext_size_sign = -1;
5684                                 optarg++;
5685                         } else if (optarg[0] == '-') {
5686                                 param.fp_ext_size_sign =  1;
5687                                 optarg++;
5688                         }
5689
5690                         ret = llapi_parse_size(optarg, &param.fp_ext_size,
5691                                                &param.fp_ext_size_units, 0);
5692                         if (ret) {
5693                                 fprintf(stderr, "error: bad ext-size '%s'\n",
5694                                         optarg);
5695                                 goto err;
5696                         }
5697                         param.fp_ext_size /= SEL_UNIT_SIZE;
5698                         param.fp_ext_size_units /= SEL_UNIT_SIZE;
5699                         param.fp_check_ext_size = 1;
5700                         param.fp_exclude_ext_size = !!neg_opt;
5701                         break;
5702                 default:
5703                         fprintf(stderr, "%s: unrecognized option '%s'\n",
5704                                 progname, argv[optind - 1]);
5705                 case 'h':
5706                         ret = CMD_HELP;
5707                         goto err;
5708                 }
5709         }
5710         if (!param.fp_verbose)
5711                 param.fp_verbose = VERBOSE_DEFAULT;
5712
5713         if (pathstart == -1) {
5714                 fprintf(stderr, "error: %s: no filename|pathname\n",
5715                         argv[0]);
5716                 ret = CMD_HELP;
5717                 goto err;
5718         } else if (pathend == -1) {
5719                 /* no options */
5720                 pathend = argc;
5721         }
5722
5723         do {
5724                 rc = llapi_find(argv[pathstart], &param);
5725                 if (rc && !ret) {
5726                         ret = rc;
5727                         pathbad = pathstart;
5728                 }
5729         } while (++pathstart < pathend);
5730
5731         if (ret)
5732                 fprintf(stderr, "%s: failed for '%s': %s\n",
5733                         progname, argv[pathbad], strerror(-rc));
5734
5735 err:
5736         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
5737                 free(param.fp_obd_uuid);
5738
5739         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
5740                 free(param.fp_mdt_uuid);
5741
5742         return ret;
5743 }
5744
5745 static int lfs_getstripe_internal(int argc, char **argv,
5746                                   struct find_param *param)
5747 {
5748         struct option long_opts[] = {
5749 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
5750 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
5751 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
5752 /* find { .val = 'B',   .name = "Btime",        .has_arg = required_argument }*/
5753         { .val = LFS_COMP_COUNT_OPT,
5754                         .name = "comp-count",   .has_arg = no_argument },
5755         { .val = LFS_COMP_COUNT_OPT,
5756                 .name = "component-count",      .has_arg = no_argument },
5757         { .val = LFS_COMP_FLAGS_OPT,
5758                         .name = "comp-flags",   .has_arg = optional_argument },
5759         { .val = LFS_COMP_FLAGS_OPT,
5760                 .name = "component-flags",      .has_arg = optional_argument },
5761         { .val = LFS_COMP_START_OPT,
5762                         .name = "comp-start",   .has_arg = optional_argument },
5763         { .val = LFS_COMP_START_OPT,
5764                 .name = "component-start",      .has_arg = optional_argument },
5765         { .val = LFS_MIRROR_INDEX_OPT,
5766                 .name = "mirror-index",         .has_arg = required_argument },
5767         { .val = LFS_MIRROR_ID_OPT,
5768                 .name = "mirror-id",            .has_arg = required_argument },
5769         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
5770         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
5771 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
5772         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
5773         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5774         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
5775         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
5776         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
5777         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
5778 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
5779         { .val = 'h',   .name = "help",         .has_arg = no_argument },
5780 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
5781         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
5782         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
5783         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
5784         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
5785 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
5786         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
5787         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
5788         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5789         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
5790 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
5791 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
5792         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
5793         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5794         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
5795         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
5796 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
5797         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
5798         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5799         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
5800         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
5801         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
5802 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
5803 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
5804 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
5805 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
5806         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5807 /* dirstripe { .val = 'X',.name = "max-inherit",.has_arg = required_argument }*/
5808         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5809         { .val = 'z',   .name = "extension-size", .has_arg = no_argument },
5810         { .val = 'z',   .name = "ext-size",     .has_arg = no_argument },
5811         { .name = NULL } };
5812         int c, rc;
5813         int neg_opt = 0;
5814         int pathstart = -1, pathend = -1;
5815         int isoption;
5816         char *end, *tmp;
5817
5818         while ((c = getopt_long(argc, argv,
5819                         "-cdDE::FghiI::LmMNoO:pqrRsSvyz",
5820                         long_opts, NULL)) != -1) {
5821                 if (neg_opt)
5822                         --neg_opt;
5823
5824                 /* '!' is part of option */
5825                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5826                 if (!isoption && pathend != -1) {
5827                         fprintf(stderr,
5828                                 "error: %s: filename|dirname must either precede options or follow options\n",
5829                                 argv[0]);
5830                         return CMD_HELP;
5831                 }
5832                 if (!isoption && pathstart == -1)
5833                         pathstart = optind - 1;
5834                 if (isoption && pathstart != -1 && pathend == -1)
5835                         pathend = optind - 2;
5836
5837                 switch (c) {
5838                 case 1:
5839                         /* unknown: opt is "!" */
5840                         if (strcmp(optarg, "!") == 0)
5841                                 neg_opt = 2;
5842                         break;
5843                 case 'c':
5844                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5845                                 param->fp_verbose |= VERBOSE_COUNT;
5846                                 param->fp_max_depth = 0;
5847                         }
5848                         break;
5849                 case LFS_COMP_COUNT_OPT:
5850                         param->fp_verbose |= VERBOSE_COMP_COUNT;
5851                         param->fp_max_depth = 0;
5852                         break;
5853                 case LFS_COMP_FLAGS_OPT:
5854                         if (optarg) {
5855                                 rc = comp_str2flags(optarg,
5856                                                     &param->fp_comp_flags,
5857                                                     &param->fp_comp_neg_flags);
5858                                 if (rc != 0) {
5859                                         fprintf(stderr,
5860                                                 "error: %s bad component flags '%s'.\n",
5861                                                 argv[0], optarg);
5862                                         return CMD_HELP;
5863                                 }
5864                                 param->fp_check_comp_flags = 1;
5865                         } else {
5866                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
5867                                 param->fp_max_depth = 0;
5868                         }
5869                         break;
5870                 case LFS_COMP_START_OPT:
5871                         if (optarg) {
5872                                 tmp = optarg;
5873                                 if (tmp[0] == '+') {
5874                                         param->fp_comp_start_sign = -1;
5875                                         tmp++;
5876                                 } else if (tmp[0] == '-') {
5877                                         param->fp_comp_start_sign = 1;
5878                                         tmp++;
5879                                 }
5880                                 rc = llapi_parse_size(tmp,
5881                                                 &param->fp_comp_start,
5882                                                 &param->fp_comp_start_units, 0);
5883                                 if (rc != 0) {
5884                                         fprintf(stderr,
5885                                                 "error: %s bad component start '%s'.\n",
5886                                                 argv[0], tmp);
5887                                         return CMD_HELP;
5888                                 }
5889                                 param->fp_check_comp_start = 1;
5890                         } else {
5891                                 param->fp_verbose |= VERBOSE_COMP_START;
5892                                 param->fp_max_depth = 0;
5893                         }
5894                         break;
5895                 case LFS_MIRROR_INDEX_OPT: {
5896                         unsigned long int mirror_index;
5897
5898                         if (optarg[0] == '+') {
5899                                 param->fp_mirror_index_sign = -1;
5900                                 optarg++;
5901                         } else if (optarg[0] == '-') {
5902                                 param->fp_mirror_index_sign = 1;
5903                                 optarg++;
5904                         }
5905
5906                         errno = 0;
5907                         mirror_index = strtoul(optarg, &end, 0);
5908                         if (errno != 0 || *end != '\0' ||
5909                             mirror_index > UINT16_MAX || (mirror_index == 0 &&
5910                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
5911                                 fprintf(stderr,
5912                                         "%s %s: invalid mirror index '%s'\n",
5913                                         progname, argv[0], optarg);
5914                                 return CMD_HELP;
5915                         }
5916
5917                         param->fp_mirror_index = (__u16)mirror_index;
5918
5919                         if (param->fp_mirror_id != 0) {
5920                                 fprintf(stderr,
5921                                         "%s %s: can't specify both mirror index and mirror ID\n",
5922                                         progname, argv[0]);
5923                                 return CMD_HELP;
5924                         }
5925                         param->fp_check_mirror_index = 1;
5926                         param->fp_exclude_mirror_index = !!neg_opt;
5927                         break;
5928                 }
5929                 case LFS_MIRROR_ID_OPT: {
5930                         unsigned long int mirror_id;
5931
5932                         if (optarg[0] == '+') {
5933                                 param->fp_mirror_id_sign = -1;
5934                                 optarg++;
5935                         } else if (optarg[0] == '-') {
5936                                 param->fp_mirror_id_sign = 1;
5937                                 optarg++;
5938                         }
5939
5940                         errno = 0;
5941                         mirror_id = strtoul(optarg, &end, 0);
5942                         if (errno != 0 || *end != '\0' ||
5943                             mirror_id > UINT16_MAX || (mirror_id == 0 &&
5944                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
5945                                 fprintf(stderr,
5946                                         "%s %s: invalid mirror ID '%s'\n",
5947                                         progname, argv[0], optarg);
5948                                 return CMD_HELP;
5949                         }
5950
5951                         param->fp_mirror_id = (__u16)mirror_id;
5952
5953                         if (param->fp_mirror_index != 0) {
5954                                 fprintf(stderr,
5955                                         "%s %s: can't specify both mirror index and mirror ID\n",
5956                                         progname, argv[0]);
5957                                 return CMD_HELP;
5958                         }
5959                         param->fp_check_mirror_id = 1;
5960                         param->fp_exclude_mirror_id = !!neg_opt;
5961                         break;
5962                 }
5963                 case 'd':
5964                         param->fp_max_depth = 0;
5965                         break;
5966                 case 'D':
5967                         param->fp_get_default_lmv = 1;
5968                         break;
5969                 case 'E':
5970                         if (optarg) {
5971                                 tmp = optarg;
5972                                 if (tmp[0] == '+') {
5973                                         param->fp_comp_end_sign = -1;
5974                                         tmp++;
5975                                 } else if (tmp[0] == '-') {
5976                                         param->fp_comp_end_sign = 1;
5977                                         tmp++;
5978                                 }
5979
5980                                 if (arg_is_eof(tmp)) {
5981                                         param->fp_comp_end = LUSTRE_EOF;
5982                                         param->fp_comp_end_units = 1;
5983                                         rc = 0;
5984                                 } else {
5985                                         rc = llapi_parse_size(tmp,
5986                                                 &param->fp_comp_end,
5987                                                 &param->fp_comp_end_units, 0);
5988                                         /* assume units of KB if too small */
5989                                         if (param->fp_comp_end < 4096)
5990                                                 param->fp_comp_end *= 1024;
5991                                 }
5992                                 if (rc != 0) {
5993                                         fprintf(stderr,
5994                                                 "error: %s bad component end '%s'.\n",
5995                                                 argv[0], tmp);
5996                                         return CMD_HELP;
5997                                 }
5998                                 param->fp_check_comp_end = 1;
5999                         } else {
6000                                 param->fp_verbose |= VERBOSE_COMP_END;
6001                                 param->fp_max_depth = 0;
6002                         }
6003                         break;
6004                 case 'F':
6005                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6006                                 param->fp_verbose |= VERBOSE_DFID;
6007                                 param->fp_max_depth = 0;
6008                         }
6009                         break;
6010                 case 'g':
6011                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6012                                 param->fp_verbose |= VERBOSE_GENERATION;
6013                                 param->fp_max_depth = 0;
6014                         }
6015                         break;
6016                 case 'i':
6017                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6018                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
6019                                 param->fp_max_depth = 0;
6020                         }
6021                         break;
6022                 case 'I':
6023                         if (optarg) {
6024                                 param->fp_comp_id = strtoul(optarg, &end, 0);
6025                                 if (*end != '\0' || param->fp_comp_id == 0 ||
6026                                     param->fp_comp_id > LCME_ID_MAX) {
6027                                         fprintf(stderr,
6028                                                 "error: %s bad component id '%s'\n",
6029                                                 argv[0], optarg);
6030                                         return CMD_HELP;
6031                                 }
6032                                 param->fp_check_comp_id = 1;
6033                         } else {
6034                                 param->fp_max_depth = 0;
6035                                 param->fp_verbose |= VERBOSE_COMP_ID;
6036                         }
6037                         break;
6038                 case 'L':
6039                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6040                                 param->fp_verbose |= VERBOSE_PATTERN;
6041                                 param->fp_max_depth = 0;
6042                         }
6043                         break;
6044 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6045                 case 'M':
6046                         fprintf(stderr,
6047                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
6048 #endif
6049                 case 'm':
6050                         if (!(param->fp_verbose & VERBOSE_DETAIL))
6051                                 param->fp_max_depth = 0;
6052                         param->fp_verbose |= VERBOSE_MDTINDEX;
6053                         break;
6054                 case 'N':
6055                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6056                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
6057                                 param->fp_max_depth = 0;
6058                         }
6059                         break;
6060                 case 'O':
6061                         if (param->fp_obd_uuid) {
6062                                 fprintf(stderr,
6063                                         "error: %s: only one obduuid allowed",
6064                                         argv[0]);
6065                                 return CMD_HELP;
6066                         }
6067                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
6068                         break;
6069                 case 'p':
6070                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6071                                 param->fp_verbose |= VERBOSE_POOL;
6072                                 param->fp_max_depth = 0;
6073                         }
6074                         break;
6075                 case 'q':
6076                         param->fp_quiet++;
6077                         break;
6078                 case 'r':
6079                         param->fp_recursive = 1;
6080                         break;
6081                 case 'R':
6082                         param->fp_raw = 1;
6083                         break;
6084                 case 'S':
6085                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6086                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
6087                                 param->fp_max_depth = 0;
6088                         }
6089                         break;
6090                 case 'v':
6091                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
6092                         break;
6093                 case 'y':
6094                         param->fp_yaml = 1;
6095                         break;
6096                 case 'z':
6097                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6098                                 param->fp_verbose |= VERBOSE_EXT_SIZE;
6099                                 param->fp_max_depth = 0;
6100                         }
6101                         break;
6102                 default:
6103                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6104                                 progname, argv[optind - 1]);
6105                 case 'h':
6106                         return CMD_HELP;
6107                 }
6108         }
6109
6110         if (pathstart == -1) {
6111                 fprintf(stderr, "error: %s: no filename|pathname\n",
6112                                 argv[0]);
6113                 return CMD_HELP;
6114         } else if (pathend == -1) {
6115                 /* no options */
6116                 pathend = argc;
6117         }
6118
6119         if (pathend > argc)
6120                 return CMD_HELP;
6121
6122         if (param->fp_recursive)
6123                 param->fp_max_depth = -1;
6124         else if (param->fp_verbose & VERBOSE_DETAIL)
6125                 param->fp_max_depth = 1;
6126
6127         if (!param->fp_verbose)
6128                 param->fp_verbose = VERBOSE_DEFAULT;
6129         if (param->fp_quiet)
6130                 param->fp_verbose = VERBOSE_OBJID;
6131
6132         do {
6133                 rc = llapi_getstripe(argv[pathstart], param);
6134         } while (++pathstart < pathend && !rc);
6135
6136         if (rc)
6137                 fprintf(stderr, "error: %s failed for %s.\n",
6138                         argv[0], argv[optind - 1]);
6139         return rc;
6140 }
6141
6142 static int lfs_tgts(int argc, char **argv)
6143 {
6144         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
6145         struct find_param param;
6146         int index = 0, rc = 0;
6147
6148         if (argc > 2)
6149                 return CMD_HELP;
6150
6151         if (argc == 2 && !realpath(argv[1], path)) {
6152                 rc = -errno;
6153                 fprintf(stderr, "error: invalid path '%s': %s\n",
6154                         argv[1], strerror(-rc));
6155                 return rc;
6156         }
6157
6158         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
6159                 /* Check if we have a mount point */
6160                 if (mntdir[0] == '\0')
6161                         continue;
6162
6163                 memset(&param, 0, sizeof(param));
6164                 if (!strcmp(argv[0], "mdts"))
6165                         param.fp_get_lmv = 1;
6166
6167                 rc = llapi_ostlist(mntdir, &param);
6168                 if (rc) {
6169                         fprintf(stderr, "error: %s: failed on %s\n",
6170                                 argv[0], mntdir);
6171                 }
6172                 if (path[0] != '\0')
6173                         break;
6174                 memset(mntdir, 0, PATH_MAX);
6175         }
6176
6177         return rc;
6178 }
6179
6180 static int lfs_getstripe(int argc, char **argv)
6181 {
6182         struct find_param param = { 0 };
6183
6184         param.fp_max_depth = 1;
6185         return lfs_getstripe_internal(argc, argv, &param);
6186 }
6187
6188 /* functions */
6189 static int lfs_getdirstripe(int argc, char **argv)
6190 {
6191         struct find_param param = { 0 };
6192         struct option long_opts[] = {
6193         { .val = 'c',   .name = "mdt-count",     .has_arg = no_argument },
6194         { .val = 'D',   .name = "default",       .has_arg = no_argument },
6195         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6196         { .val = 'H',   .name = "mdt-hash",      .has_arg = no_argument },
6197         { .val = 'i',   .name = "mdt-index",     .has_arg = no_argument },
6198         { .val = 'm',   .name = "mdt-index",     .has_arg = no_argument },
6199         { .val = 'O',   .name = "obd",           .has_arg = required_argument },
6200         { .val = 'r',   .name = "recursive",     .has_arg = no_argument },
6201         { .val = 'T',   .name = "mdt-count",     .has_arg = no_argument },
6202         { .val = 'v',   .name = "verbose",       .has_arg = no_argument },
6203         { .val = 'X',   .name = "max-inherit",   .has_arg = no_argument },
6204         { .val = 'y',   .name = "yaml",          .has_arg = no_argument },
6205         { .val = LFS_INHERIT_RR_OPT,
6206                         .name = "max-inherit-rr", .has_arg = no_argument },
6207         { .name = NULL } };
6208         int c, rc;
6209
6210         param.fp_get_lmv = 1;
6211
6212         while ((c = getopt_long(argc, argv,
6213                                 "cDhHimO:rtTvXy", long_opts, NULL)) != -1) {
6214                 switch (c) {
6215                 case 'c':
6216                 case 'T':
6217                         param.fp_verbose |= VERBOSE_COUNT;
6218                         break;
6219                 case 'D':
6220                         param.fp_get_default_lmv = 1;
6221                         break;
6222 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6223                 case 't':
6224                         fprintf(stderr,
6225                                 "warning: '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6226                         fallthrough;
6227 #endif
6228                 case 'H':
6229                         param.fp_verbose |= VERBOSE_HASH_TYPE;
6230                         break;
6231                 case 'i':
6232                         fallthrough;
6233                 case 'm':
6234                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
6235                         break;
6236                 case 'O':
6237                         if (param.fp_obd_uuid) {
6238                                 fprintf(stderr,
6239                                         "%s: only one obduuid allowed",
6240                                         progname);
6241                                 return CMD_HELP;
6242                         }
6243                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
6244                         break;
6245                 case 'r':
6246                         param.fp_recursive = 1;
6247                         break;
6248                 case 'v':
6249                         param.fp_verbose |= VERBOSE_DETAIL;
6250                         break;
6251                 case 'X':
6252                         param.fp_verbose |= VERBOSE_INHERIT;
6253                         break;
6254                 case LFS_INHERIT_RR_OPT:
6255                         param.fp_verbose |= VERBOSE_INHERIT_RR;
6256                         break;
6257                 case 'y':
6258                         param.fp_yaml = 1;
6259                         break;
6260                 default:
6261                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6262                                 progname, argv[optind - 1]);
6263                         fallthrough;
6264                 case 'h':
6265                         return CMD_HELP;
6266                 }
6267         }
6268
6269         if (optind >= argc)
6270                 return CMD_HELP;
6271
6272         if (param.fp_recursive)
6273                 param.fp_max_depth = -1;
6274
6275         if (!param.fp_verbose)
6276                 param.fp_verbose = VERBOSE_DEFAULT;
6277
6278         do {
6279                 rc = llapi_getstripe(argv[optind], &param);
6280         } while (++optind < argc && !rc);
6281
6282         if (rc)
6283                 fprintf(stderr, "error: %s failed for %s.\n",
6284                         argv[0], argv[optind - 1]);
6285         return rc;
6286 }
6287
6288 enum mntdf_flags {
6289         MNTDF_INODES    = 0x0001,
6290         MNTDF_COOKED    = 0x0002,
6291         MNTDF_LAZY      = 0x0004,
6292         MNTDF_VERBOSE   = 0x0008,
6293         MNTDF_SHOW      = 0x0010,
6294         MNTDF_DECIMAL   = 0x0020,
6295 };
6296
6297 #define COOK(value, base)                                       \
6298 ({                                                              \
6299         int radix = 0;                                          \
6300         while (value > base) {                                  \
6301                 value /= base;                                  \
6302                 radix++;                                        \
6303         }                                                       \
6304         radix;                                                  \
6305 })
6306 #define UUF     "%-20s"
6307 #define CSF     "%11s"
6308 #define CDF     "%11llu"
6309 #define HDF     "%8.1f%c"
6310 #define RSF     "%4s"
6311 #define RDF     "%3d%%"
6312
6313 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
6314 {
6315         double avail, used, ratio = 0;
6316
6317         if (inodes) {
6318                 avail = st->os_ffree;
6319                 used = st->os_files - st->os_ffree;
6320         } else {
6321                 avail = st->os_bavail;
6322                 used = st->os_blocks - st->os_bfree;
6323         }
6324         if (avail + used > 0)
6325                 ratio = used / (used + avail) * 100;
6326
6327         /* Round up to match df(1) usage percentage */
6328         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
6329 }
6330
6331 /*
6332  * This is to identify various problem states for "lfs df" if .osn_err = true,
6333  * so only show flags reflecting those states by default. Informational states
6334  * are only shown with "-v" and use lower-case names to distinguish them.
6335  * UNUSED[12] were for "EROFS = 30" until 1.6 but are now available for use.
6336  */
6337 static struct obd_statfs_state_names {
6338         enum obd_statfs_state   osn_state;
6339         const char              osn_name;
6340         bool                    osn_err;
6341 } oss_names[] = {
6342         { .osn_state = OS_STATFS_DEGRADED,   .osn_name = 'D', .osn_err = true },
6343         { .osn_state = OS_STATFS_READONLY,   .osn_name = 'R', .osn_err = true },
6344         { .osn_state = OS_STATFS_NOPRECREATE,.osn_name = 'N', .osn_err = true },
6345         { .osn_state = OS_STATFS_UNUSED1,    .osn_name = '?', .osn_err = true },
6346         { .osn_state = OS_STATFS_UNUSED2,    .osn_name = '?', .osn_err = true },
6347         { .osn_state = OS_STATFS_ENOSPC,     .osn_name = 'S', .osn_err = true },
6348         { .osn_state = OS_STATFS_ENOINO,     .osn_name = 'I', .osn_err = true },
6349         { .osn_state = OS_STATFS_SUM,        .osn_name = 'a', /* aggregate */ },
6350         { .osn_state = OS_STATFS_NONROT,     .osn_name = 'f', /* flash */     },
6351 };
6352
6353 static int showdf(char *mntdir, struct obd_statfs *stat,
6354                   char *uuid, enum mntdf_flags flags,
6355                   char *type, int index, int rc)
6356 {
6357         long long avail, used, total;
6358         int ratio = 0;
6359         char *suffix = flags & MNTDF_DECIMAL ? "kMGTPEZY" : "KMGTPEZY";
6360         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
6361         char tbuf[3 * sizeof(__u64)];
6362         char ubuf[3 * sizeof(__u64)];
6363         char abuf[3 * sizeof(__u64)];
6364         char rbuf[3 * sizeof(__u64)];
6365
6366         if (!uuid || !stat)
6367                 return -EINVAL;
6368
6369         switch (rc) {
6370         case 0:
6371                 if (flags & MNTDF_INODES) {
6372                         avail = stat->os_ffree;
6373                         used = stat->os_files - stat->os_ffree;
6374                         total = stat->os_files;
6375                 } else {
6376                         int shift = flags & MNTDF_COOKED ? 0 : 10;
6377
6378                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
6379                         used  = ((stat->os_blocks - stat->os_bfree) *
6380                                  stat->os_bsize) >> shift;
6381                         total = (stat->os_blocks * stat->os_bsize) >> shift;
6382                 }
6383
6384                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
6385
6386                 if (flags & MNTDF_COOKED) {
6387                         int base = flags & MNTDF_DECIMAL ? 1000 : 1024;
6388                         double cook_val;
6389                         int i;
6390
6391                         cook_val = (double)total;
6392                         i = COOK(cook_val, base);
6393                         if (i > 0)
6394                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
6395                                          suffix[i - 1]);
6396                         else
6397                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
6398
6399                         cook_val = (double)used;
6400                         i = COOK(cook_val, base);
6401                         if (i > 0)
6402                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
6403                                          suffix[i - 1]);
6404                         else
6405                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
6406
6407                         cook_val = (double)avail;
6408                         i = COOK(cook_val, base);
6409                         if (i > 0)
6410                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
6411                                          suffix[i - 1]);
6412                         else
6413                                 snprintf(abuf, sizeof(abuf), CDF, avail);
6414                 } else {
6415                         snprintf(tbuf, sizeof(tbuf), CDF, total);
6416                         snprintf(ubuf, sizeof(tbuf), CDF, used);
6417                         snprintf(abuf, sizeof(tbuf), CDF, avail);
6418                 }
6419
6420                 sprintf(rbuf, RDF, ratio);
6421                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
6422                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
6423                 if (type)
6424                         printf("[%s:%d]", type, index);
6425
6426                 if (stat->os_state) {
6427                         uint32_t i;
6428
6429                         printf(" ");
6430                         for (i = 0; i < ARRAY_SIZE(oss_names); i++) {
6431                                 if (oss_names[i].osn_state & stat->os_state &&
6432                                     (oss_names[i].osn_err ||
6433                                      flags & MNTDF_VERBOSE))
6434                                         printf("%c", oss_names[i].osn_name);
6435                         }
6436                 }
6437
6438                 printf("\n");
6439                 break;
6440         case -ENODATA:
6441                 printf(UUF": inactive device\n", uuid);
6442                 break;
6443         default:
6444                 printf(UUF": %s\n", uuid, strerror(-rc));
6445                 break;
6446         }
6447
6448         return 0;
6449 }
6450
6451 struct ll_stat_type {
6452         int   st_op;
6453         char *st_name;
6454 };
6455
6456 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
6457
6458 struct ll_statfs_data {
6459         int                     sd_index;
6460         struct obd_statfs       sd_st;
6461 };
6462
6463 struct ll_statfs_buf {
6464         int                     sb_count;
6465         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
6466 };
6467
6468 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
6469                  int ops, struct ll_statfs_buf *lsb)
6470 {
6471         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
6472         struct obd_uuid uuid_buf;
6473         char *poolname = NULL;
6474         struct ll_stat_type types[] = {
6475                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
6476                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
6477                 { .st_name = NULL } };
6478         struct ll_stat_type *tp;
6479         __u64 ost_files = 0;
6480         __u64 ost_ffree = 0;
6481         __u32 index;
6482         __u32 type;
6483         int fd;
6484         int rc = 0;
6485         int rc2;
6486
6487         if (pool) {
6488                 poolname = strchr(pool, '.');
6489                 if (poolname) {
6490                         if (strncmp(fsname, pool, strlen(fsname))) {
6491                                 fprintf(stderr, "filesystem name incorrect\n");
6492                                 return -ENODEV;
6493                         }
6494                         poolname++;
6495                 } else
6496                         poolname = pool;
6497         }
6498
6499         fd = open(mntdir, O_RDONLY);
6500         if (fd < 0) {
6501                 rc = -errno;
6502                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
6503                         strerror(errno));
6504                 return rc;
6505         }
6506
6507         if (flags & MNTDF_SHOW) {
6508                 if (flags & MNTDF_INODES)
6509                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6510                                "UUID", "Inodes", "IUsed", "IFree",
6511                                "IUse%", "Mounted on");
6512                 else
6513                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6514                                "UUID",
6515                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
6516                                "Used", "Available", "Use%", "Mounted on");
6517         }
6518
6519         for (tp = types; tp->st_name != NULL; tp++) {
6520                 bool have_ost = false;
6521
6522                 if (!(tp->st_op & ops))
6523                         continue;
6524
6525                 for (index = 0; ; index++) {
6526                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
6527                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
6528                         type = flags & MNTDF_LAZY ?
6529                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
6530                         rc2 = llapi_obd_fstatfs(fd, type, index,
6531                                                &stat_buf, &uuid_buf);
6532                         if (rc2 == -ENODEV)
6533                                 break;
6534                         if (rc2 == -EAGAIN)
6535                                 continue;
6536                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
6537                                 if (!(flags & MNTDF_VERBOSE))
6538                                         continue;
6539                         } else if (rc2 < 0 && rc == 0) {
6540                                 rc = rc2;
6541                         }
6542
6543                         /*
6544                          * If we have OSTs then don't report MDT block counts.
6545                          * For MDT-only filesystems the expectation is that all
6546                          * layouts have a DoM component.  For filesystems with
6547                          * OSTs, files are not necessarily going to store data
6548                          * on MDTs, and MDT space is limited to a fraction of
6549                          * OST space, so don't include it in the summary.
6550                          */
6551                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
6552                                 have_ost = true;
6553                                 sum.os_blocks = 0;
6554                                 sum.os_bfree = 0;
6555                                 sum.os_bavail = 0;
6556                         }
6557
6558                         if (poolname && tp->st_op == LL_STATFS_LOV &&
6559                             llapi_search_ost(fsname, poolname,
6560                                              obd_uuid2str(&uuid_buf)) != 1)
6561                                 continue;
6562
6563                         /*
6564                          * the llapi_obd_fstatfs() call may have returned with
6565                          * an error, but if it filled in uuid_buf we will at
6566                          * lease use that to print out a message for that OBD.
6567                          * If we didn't get anything in the uuid_buf, then fill
6568                          * it in so that we can print an error message.
6569                          */
6570                         if (uuid_buf.uuid[0] == '\0')
6571                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
6572                                          "%s%04x", tp->st_name, index);
6573                         if (!rc && lsb) {
6574                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
6575                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
6576                                 lsb->sb_count++;
6577                         }
6578                         if (flags & MNTDF_SHOW)
6579                                 showdf(mntdir, &stat_buf,
6580                                        obd_uuid2str(&uuid_buf), flags,
6581                                        tp->st_name, index, rc2);
6582
6583                         if (rc2)
6584                                 continue;
6585
6586                         if (tp->st_op == LL_STATFS_LMV) {
6587                                 sum.os_ffree += stat_buf.os_ffree;
6588                                 sum.os_files += stat_buf.os_files;
6589                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
6590                                 ost_files += stat_buf.os_files;
6591                                 ost_ffree += stat_buf.os_ffree;
6592                         }
6593                         sum.os_blocks += stat_buf.os_blocks *
6594                                          stat_buf.os_bsize;
6595                         sum.os_bfree  += stat_buf.os_bfree *
6596                                          stat_buf.os_bsize;
6597                         sum.os_bavail += stat_buf.os_bavail *
6598                                          stat_buf.os_bsize;
6599                 }
6600         }
6601
6602         close(fd);
6603
6604         /*
6605          * If we have _some_ OSTs, but don't have as many free objects on the
6606          * OST as inodes on the MDTs, reduce the reported number of inodes
6607          * to compensate, so that the "inodes in use" number is correct.
6608          * This should be kept in sync with ll_statfs_internal().
6609          */
6610         if (ost_files && ost_ffree < sum.os_ffree) {
6611                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
6612                 sum.os_ffree = ost_ffree;
6613         }
6614         if (flags & MNTDF_SHOW) {
6615                 printf("\n");
6616                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
6617                 printf("\n");
6618         }
6619
6620         return rc;
6621 }
6622
6623 enum {
6624         LAYOUT_INHERIT_UNSET    = -2,
6625 };
6626
6627 /* functions */
6628 static int lfs_setdirstripe(int argc, char **argv)
6629 {
6630         char *dname;
6631         struct lfs_setstripe_args lsa = { 0 };
6632         struct llapi_stripe_param *param = NULL;
6633         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
6634         char *end;
6635         int c;
6636         char *mode_opt = NULL;
6637         bool default_stripe = false;
6638         bool delete = false;
6639         bool foreign_mode = false;
6640         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
6641         mode_t previous_mode = 0;
6642         char *xattr = NULL;
6643         __u32 type = LU_FOREIGN_TYPE_SYMLINK, flags = 0;
6644         int max_inherit = LAYOUT_INHERIT_UNSET;
6645         int max_inherit_rr = LAYOUT_INHERIT_UNSET;
6646         struct option long_opts[] = {
6647         { .val = 'c',   .name = "count",        .has_arg = required_argument },
6648         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
6649         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
6650         { .val = 'D',   .name = "default",      .has_arg = no_argument },
6651         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
6652         { .val = LFS_LAYOUT_FLAGS_OPT,
6653                         .name = "flags",        .has_arg = required_argument },
6654         { .val = LFS_LAYOUT_FOREIGN_OPT,
6655                         .name = "foreign",      .has_arg = optional_argument},
6656         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6657         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
6658 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
6659         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
6660         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
6661 #else
6662 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
6663         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6664         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6665 #endif
6666 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6667         { .val = 'i',   .name = "index",        .has_arg = required_argument },
6668 #endif
6669         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
6670 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6671         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
6672 #endif
6673         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
6674         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
6675         { .val = 'X',   .name = "max-inherit",  .has_arg = required_argument },
6676         { .val = LFS_INHERIT_RR_OPT,
6677                         .name = "max-inherit-rr", .has_arg = required_argument},
6678 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
6679         { .name = NULL } };
6680         int result = 0;
6681
6682         setstripe_args_init(&lsa);
6683
6684         while ((c = getopt_long(argc, argv, "c:dDi:hH:m:o:t:T:x:X:",
6685                                 long_opts, NULL)) >= 0) {
6686                 switch (c) {
6687                 case 0:
6688                         /* Long options. */
6689                         break;
6690                 case 'c':
6691                 case 'T':
6692                         errno = 0;
6693                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
6694                         if (errno != 0 || *end != '\0' ||
6695                             lsa.lsa_stripe_count < -1 ||
6696                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
6697                                 fprintf(stderr,
6698                                         "%s: invalid stripe count '%s'\n",
6699                                         progname, optarg);
6700                                 return CMD_HELP;
6701                         }
6702                         break;
6703                 case 'd':
6704                         delete = true;
6705                         default_stripe = true;
6706                         break;
6707                 case 'D':
6708                         default_stripe = true;
6709                         break;
6710                 case LFS_LAYOUT_FOREIGN_OPT:
6711                         if (optarg) {
6712                                 /* check pure numeric */
6713                                 type = strtoul(optarg, &end, 0);
6714                                 if (*end) {
6715                                         /* check name */
6716                                         type = check_foreign_type_name(optarg);
6717                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
6718                                                 fprintf(stderr,
6719                                                         "%s %s: unknown foreign type '%s'\n",
6720                                                         progname, argv[0],
6721                                                         optarg);
6722                                                 return CMD_HELP;
6723                                         }
6724                                 } else if (type >= UINT32_MAX) {
6725                                         fprintf(stderr,
6726                                                 "%s %s: invalid foreign type '%s'\n",
6727                                                 progname, argv[0], optarg);
6728                                         return CMD_HELP;
6729                                 }
6730                         }
6731                         foreign_mode = true;
6732                         break;
6733                 case LFS_LAYOUT_FLAGS_OPT:
6734                         errno = 0;
6735                         flags = strtoul(optarg, &end, 16);
6736                         if (errno != 0 || *end != '\0' ||
6737                             flags >= UINT32_MAX) {
6738                                 fprintf(stderr,
6739                                         "%s %s: invalid hex flags '%s'\n",
6740                                         progname, argv[0], optarg);
6741                                 return CMD_HELP;
6742                         }
6743                         if (!foreign_mode) {
6744                                 fprintf(stderr,
6745                                         "%s %s: hex flags must be specified with --foreign option\n",
6746                                         progname, argv[0]);
6747                                 return CMD_HELP;
6748                         }
6749                         break;
6750 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6751                 case 't':
6752                         fprintf(stderr,
6753                                 "warning: '--hash-type' and '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6754                         fallthrough;
6755 #endif
6756                 case 'H':
6757                         lsa.lsa_pattern = check_hashtype(optarg);
6758                         if (lsa.lsa_pattern == 0) {
6759                                 fprintf(stderr,
6760                                         "%s %s: bad stripe hash type '%s'\n",
6761                                         progname, argv[0], optarg);
6762                                 return CMD_HELP;
6763                         }
6764                         break;
6765                 case 'i':
6766 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
6767                 case 'm':
6768 #endif
6769 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6770                         if (strcmp(argv[optind - 1], "--index") == 0)
6771                                 fprintf(stderr,
6772                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
6773                                         progname, argv[0]);
6774 #endif
6775                         lsa.lsa_nr_tgts = parse_targets(mdts,
6776                                                 sizeof(mdts) / sizeof(__u32),
6777                                                 lsa.lsa_nr_tgts, optarg, NULL);
6778                         if (lsa.lsa_nr_tgts < 0) {
6779                                 fprintf(stderr,
6780                                         "%s %s: invalid MDT target(s) '%s'\n",
6781                                         progname, argv[0], optarg);
6782                                 return CMD_HELP;
6783                         }
6784
6785                         lsa.lsa_tgts = mdts;
6786                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6787                                 lsa.lsa_stripe_off = mdts[0];
6788                         break;
6789 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
6790                 case 'm':
6791                         fprintf(stderr,
6792                                 "warning: '-m' is deprecated, use '--mode' or '-o' instead\n");
6793 #endif
6794                 case 'o':
6795                         mode_opt = optarg;
6796                         break;
6797                 case 'x':
6798                         xattr = optarg;
6799                         break;
6800                 case 'X':
6801                         errno = 0;
6802                         max_inherit = strtol(optarg, &end, 10);
6803                         if (errno != 0 || *end != '\0' || max_inherit < -2) {
6804                                 fprintf(stderr,
6805                                         "%s %s: invalid max-inherit '%s'\n",
6806                                         progname, argv[0], optarg);
6807                                 return CMD_HELP;
6808                         }
6809                         if (max_inherit == 0) {
6810                                 max_inherit = LMV_INHERIT_NONE;
6811                         } else if (max_inherit == -1) {
6812                                 max_inherit = LMV_INHERIT_UNLIMITED;
6813                         } else if (max_inherit > LMV_INHERIT_MAX) {
6814                                 fprintf(stderr,
6815                                         "%s %s: max-inherit %d exceeds maximum %u\n",
6816                                         progname, argv[0], max_inherit,
6817                                         LMV_INHERIT_MAX);
6818                                 return CMD_HELP;
6819                         }
6820                         break;
6821                 case LFS_INHERIT_RR_OPT:
6822                         if (!default_stripe) {
6823                                 fprintf(stderr,
6824                                         "%s %s: '--max-inherit-rr' must be specified with '-D'\n",
6825                                         progname, argv[0]);
6826                                 return CMD_HELP;
6827                         }
6828                         errno = 0;
6829                         max_inherit_rr = strtol(optarg, &end, 10);
6830                         if (errno != 0 || *end != '\0' || max_inherit_rr < -2) {
6831                                 fprintf(stderr,
6832                                         "%s %s: invalid max-inherit-rr '%s'\n",
6833                                         progname, argv[0], optarg);
6834                                 return CMD_HELP;
6835                         }
6836                         if (max_inherit_rr == 0) {
6837                                 max_inherit_rr = LMV_INHERIT_RR_NONE;
6838                         } else if (max_inherit_rr == -1) {
6839                                 max_inherit_rr = LMV_INHERIT_RR_UNLIMITED;
6840                         } else if (max_inherit_rr > LMV_INHERIT_RR_MAX) {
6841                                 fprintf(stderr,
6842                                         "%s %s: max-inherit-rr %d exceeds maximum %u\n",
6843                                         progname, argv[0], max_inherit_rr,
6844                                         LMV_INHERIT_RR_MAX);
6845                                 return CMD_HELP;
6846                         }
6847                         break;
6848                 default:
6849                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6850                                 progname, argv[optind - 1]);
6851                         fallthrough;
6852                 case 'h':
6853                         return CMD_HELP;
6854                 }
6855         }
6856
6857         if (optind == argc) {
6858                 fprintf(stderr, "%s %s: DIR must be specified\n",
6859                         progname, argv[0]);
6860                 return CMD_HELP;
6861         }
6862
6863         if (xattr && !foreign_mode) {
6864                 /*
6865                  * only print a warning as this is armless and will be
6866                  * ignored
6867                  */
6868                 fprintf(stderr,
6869                         "%s %s: xattr has been specified for non-foreign layout\n",
6870                         progname, argv[0]);
6871         } else if (foreign_mode && !xattr) {
6872                 fprintf(stderr,
6873                         "%s %s: xattr must be provided in foreign mode\n",
6874                         progname, argv[0]);
6875                 return CMD_HELP;
6876         }
6877
6878         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
6879             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
6880                 fprintf(stderr,
6881                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
6882                         progname, argv[0]);
6883                 return CMD_HELP;
6884         }
6885
6886         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
6887             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
6888                 /* if no parameters set, create directory on least-used MDTs */
6889                 lsa.lsa_stripe_off = LMV_OFFSET_DEFAULT;
6890                 lsa.lsa_stripe_count = 1;
6891         }
6892
6893         if (delete &&
6894             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
6895              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
6896                 fprintf(stderr,
6897                         "%s %s: cannot specify -d with -c or -i options\n",
6898                         progname, argv[0]);
6899                 return CMD_HELP;
6900         }
6901
6902         if (mode_opt) {
6903                 mode = strtoul(mode_opt, &end, 8);
6904                 if (*end != '\0') {
6905                         fprintf(stderr,
6906                                 "%s %s: bad MODE '%s'\n",
6907                                 progname, argv[0], mode_opt);
6908                         return CMD_HELP;
6909                 }
6910                 previous_mode = umask(0);
6911         }
6912
6913         /* check max-inherit and warn user in some cases */
6914         if (default_stripe &&
6915             (lsa.lsa_stripe_count < 0 || lsa.lsa_stripe_count > 1)) {
6916                 if (max_inherit == LMV_INHERIT_UNLIMITED)
6917                         fprintf(stderr,
6918                         "%s %s: unrecommended max-inherit=-1 when default stripe-count=%lld\n",
6919                         progname, argv[0], lsa.lsa_stripe_count);
6920                 else if (max_inherit > LMV_INHERIT_DEFAULT_STRIPED + 2 &&
6921                          max_inherit != LMV_INHERIT_NONE)
6922                         fprintf(stderr,
6923                                 "%s %s: unrecommended max-inherit=%d when default stripe-count=%lld\n",
6924                                 progname, argv[0], max_inherit,
6925                                 lsa.lsa_stripe_count);
6926         }
6927
6928         if (max_inherit_rr != LAYOUT_INHERIT_UNSET &&
6929             lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
6930             lsa.lsa_stripe_off != LMV_OFFSET_DEFAULT) {
6931                 fprintf(stderr,
6932                         "%s %s: max-inherit-rr needs mdt-index=-1, not %lld\n",
6933                         progname, argv[0], lsa.lsa_stripe_off);
6934                 return CMD_HELP;
6935         }
6936
6937         /* foreign LMV/dir case */
6938         if (foreign_mode) {
6939                 if (argc > optind + 1) {
6940                         fprintf(stderr,
6941                                 "%s %s: cannot specify multiple foreign dirs\n",
6942                                 progname, argv[0]);
6943                         return CMD_HELP;
6944                 }
6945
6946                 dname = argv[optind];
6947                 result = llapi_dir_create_foreign(dname, mode, type, flags,
6948                                                   xattr);
6949                 if (result != 0)
6950                         fprintf(stderr,
6951                                 "%s mkdir: can't create foreign dir '%s': %s\n",
6952                                 progname, dname, strerror(-result));
6953                 return result;
6954         }
6955
6956         /*
6957          * initialize stripe parameters, in case param is converted to specific,
6958          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
6959          */
6960         param = calloc(1, offsetof(typeof(*param),
6961                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
6962                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
6963         if (!param) {
6964                 fprintf(stderr,
6965                         "%s %s: cannot allocate memory for parameters: %s\n",
6966                         progname, argv[0], strerror(ENOMEM));
6967                 return CMD_HELP;
6968         }
6969
6970         /* if "lfs setdirstripe -D -i -1" is used, assume 1-stripe directory */
6971         if (default_stripe && lsa.lsa_stripe_off == LMV_OFFSET_DEFAULT &&
6972             (lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT ||
6973              lsa.lsa_stripe_count == 0))
6974                 lsa.lsa_stripe_count = 1;
6975         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
6976                 param->lsp_stripe_count = lsa.lsa_stripe_count;
6977         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6978                 param->lsp_stripe_offset = LMV_OFFSET_DEFAULT;
6979         else
6980                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
6981         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
6982                 param->lsp_stripe_pattern = lsa.lsa_pattern;
6983         else
6984                 param->lsp_stripe_pattern = LMV_HASH_TYPE_UNKNOWN;
6985         param->lsp_pool = lsa.lsa_pool_name;
6986         param->lsp_is_specific = false;
6987         if (max_inherit == LAYOUT_INHERIT_UNSET) {
6988                 if (lsa.lsa_stripe_count == 0 || lsa.lsa_stripe_count == 1)
6989                         max_inherit = LMV_INHERIT_DEFAULT_PLAIN;
6990                 else
6991                         max_inherit = LMV_INHERIT_DEFAULT_STRIPED;
6992         }
6993         param->lsp_max_inherit = max_inherit;
6994         if (default_stripe) {
6995
6996                 if (max_inherit_rr == LAYOUT_INHERIT_UNSET)
6997                         max_inherit_rr = LMV_INHERIT_RR_DEFAULT;
6998                 param->lsp_max_inherit_rr = max_inherit_rr;
6999         }
7000         if (strcmp(argv[0], "mkdir") == 0)
7001                 param->lsp_is_create = true;
7002         if (lsa.lsa_nr_tgts > 1) {
7003                 if (lsa.lsa_stripe_count > 0 &&
7004                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
7005                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
7006                         fprintf(stderr,
7007                                 "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
7008                                 argv[0], lsa.lsa_stripe_count,
7009                                 lsa.lsa_nr_tgts);
7010                         free(param);
7011                         return CMD_HELP;
7012                 }
7013
7014                 param->lsp_is_specific = true;
7015                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
7016                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
7017         }
7018
7019         dname = argv[optind];
7020         do {
7021                 if (default_stripe) {
7022                         result = llapi_dir_set_default_lmv(dname, param);
7023                         if (result)
7024                                 fprintf(stderr,
7025                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
7026                                         progname, dname, strerror(-result));
7027                         continue;
7028                 }
7029
7030                 result = llapi_dir_create(dname, mode, param);
7031                 if (result)
7032                         fprintf(stderr,
7033                                 "%s setdirstripe: cannot create dir '%s': %s\n",
7034                                 progname, dname, strerror(-result));
7035         } while (!result && (dname = argv[++optind]));
7036
7037         if (mode_opt)
7038                 umask(previous_mode);
7039
7040         free(param);
7041         return result;
7042 }
7043
7044 /* functions */
7045 static int lfs_rmentry(int argc, char **argv)
7046 {
7047         char *dname;
7048         int   index;
7049         int   result = 0;
7050
7051         if (argc <= 1) {
7052                 fprintf(stderr, "error: %s: missing dirname\n",
7053                         argv[0]);
7054                 return CMD_HELP;
7055         }
7056
7057         index = 1;
7058         dname = argv[index];
7059         while (dname) {
7060                 result = llapi_direntry_remove(dname);
7061                 if (result) {
7062                         fprintf(stderr,
7063                                 "error: %s: remove dir entry '%s' failed\n",
7064                                 argv[0], dname);
7065                         break;
7066                 }
7067                 dname = argv[++index];
7068         }
7069         return result;
7070 }
7071
7072 static int lfs_unlink_foreign(int argc, char **argv)
7073 {
7074         char *name;
7075         int   index;
7076         int   result = 0;
7077
7078         if (argc <= 1) {
7079                 fprintf(stderr, "error: %s: missing pathname\n",
7080                         argv[0]);
7081                 return CMD_HELP;
7082         }
7083
7084         index = 1;
7085         name = argv[index];
7086         while (name != NULL) {
7087                 result = llapi_unlink_foreign(name);
7088                 if (result) {
7089                         fprintf(stderr,
7090                                 "error: %s: unlink foreign entry '%s' failed\n",
7091                                 argv[0], name);
7092                         break;
7093                 }
7094                 name = argv[++index];
7095         }
7096         return result;
7097 }
7098
7099 static int lfs_mv(int argc, char **argv)
7100 {
7101         struct lmv_user_md lmu = { LMV_USER_MAGIC };
7102         struct find_param param = {
7103                 .fp_max_depth = -1,
7104                 .fp_mdt_index = -1,
7105         };
7106         char *end;
7107         int c;
7108         int rc = 0;
7109         struct option long_opts[] = {
7110         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
7111         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
7112         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
7113         { .name = NULL } };
7114
7115         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
7116                 switch (c) {
7117 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7118                 case 'M':
7119                         fprintf(stderr,
7120                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
7121 #endif
7122                 case 'm':
7123                         errno = 0;
7124                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
7125                         if (errno != 0 || *end != '\0' ||
7126                             lmu.lum_stripe_offset >= UINT32_MAX) {
7127                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
7128                                         progname, optarg);
7129                                 return CMD_HELP;
7130                         }
7131                         break;
7132                 case 'v':
7133                         param.fp_verbose = VERBOSE_DETAIL;
7134                         break;
7135                 default:
7136                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
7137                                 progname, argv[optind - 1]);
7138                         return CMD_HELP;
7139                 }
7140         }
7141
7142         if (lmu.lum_stripe_offset == LMV_OFFSET_DEFAULT) {
7143                 fprintf(stderr, "%s mv: MDT index must be specified\n",
7144                         progname);
7145                 return CMD_HELP;
7146         }
7147
7148         if (optind >= argc) {
7149                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
7150                 return CMD_HELP;
7151         }
7152
7153         lmu.lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
7154
7155         /* initialize migrate mdt parameters */
7156         param.fp_lmv_md = &lmu;
7157         param.fp_migrate = 1;
7158         rc = llapi_migrate_mdt(argv[optind], &param);
7159         if (rc != 0)
7160                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
7161                         progname, argv[optind], lmu.lum_stripe_offset,
7162                         strerror(-rc));
7163         return rc;
7164 }
7165
7166 static int lfs_osts(int argc, char **argv)
7167 {
7168         return lfs_tgts(argc, argv);
7169 }
7170
7171 static int lfs_mdts(int argc, char **argv)
7172 {
7173         return lfs_tgts(argc, argv);
7174 }
7175
7176 static int lfs_df(int argc, char **argv)
7177 {
7178         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
7179         enum mntdf_flags flags = MNTDF_SHOW;
7180         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
7181         int c, rc = 0, rc1 = 0, index = 0, arg_idx = 0;
7182         char fsname[PATH_MAX] = "", *pool_name = NULL;
7183         struct option long_opts[] = {
7184         { .val = 'h',   .name = "human-readable", .has_arg = no_argument },
7185         { .val = 'H',   .name = "si",           .has_arg = no_argument },
7186         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
7187         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
7188         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
7189         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
7190         { .name = NULL} };
7191
7192         while ((c = getopt_long(argc, argv, "hHilp:v", long_opts, NULL)) != -1) {
7193                 switch (c) {
7194                 case 'h':
7195                         flags = (flags & ~MNTDF_DECIMAL) | MNTDF_COOKED;
7196                         break;
7197                 case 'H':
7198                         flags |= MNTDF_COOKED | MNTDF_DECIMAL;
7199                         break;
7200                 case 'i':
7201                         flags |= MNTDF_INODES;
7202                         break;
7203                 case 'l':
7204                         flags |= MNTDF_LAZY;
7205                         break;
7206                 case 'p':
7207                         pool_name = optarg;
7208                         break;
7209                 case 'v':
7210                         flags |= MNTDF_VERBOSE;
7211                         break;
7212                 default:
7213                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7214                                 progname, argv[optind - 1]);
7215                         return CMD_HELP;
7216                 }
7217         }
7218
7219         /* Handle case where path is not specified */
7220         if (optind == argc) {
7221                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7222                         /* Check if we have a mount point */
7223                         if (mntdir[0] == '\0')
7224                                 continue;
7225
7226                         rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
7227                         if (rc || path[0] != '\0')
7228                                 break;
7229
7230                         fsname[0] = '\0'; /* avoid matching in next loop */
7231                         mntdir[0] = '\0'; /* avoid matching in next loop */
7232                         path[0] = '\0'; /* clean for next loop */
7233                 }
7234                 return rc;
7235         }
7236
7237         /* Loop through all the remaining arguments. These are Lustre FS
7238          * paths.
7239          */
7240         for (arg_idx = optind; arg_idx <= argc - 1; arg_idx++) {
7241                 bool valid = false;
7242
7243                 fsname[0] = '\0'; /* start clean */
7244                 mntdir[0] = '\0'; /* start clean */
7245                 path[0] = '\0';   /* start clean */
7246
7247                 /* path does not exists at all */
7248                 if (!realpath(argv[arg_idx], path)) {
7249                         rc = -errno;
7250                         fprintf(stderr, "error: invalid path '%s': %s\n",
7251                                 argv[arg_idx], strerror(-rc));
7252                         /* save first seen error */
7253                         if (!rc1)
7254                                 rc1 = rc;
7255
7256                         continue;
7257                 }
7258
7259                 /* path exists but may not be a Lustre filesystem */
7260                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7261                         /* Check if we have a mount point */
7262                         if (mntdir[0] == '\0')
7263                                 continue;
7264
7265                         rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
7266                         if (rc || path[0] != '\0') {
7267                                 valid = true;
7268
7269                                 /* save first seen error */
7270                                 if (!rc1)
7271                                         rc1 = rc;
7272                                 break;
7273                         }
7274                 }
7275
7276                 if (!valid) {
7277                         llapi_printf(LLAPI_MSG_ERROR,
7278                                      "%s:%s Not a Lustre filesystem\n",
7279                                      argv[0], argv[arg_idx]);
7280                         /* save first seen error */
7281                         if (!rc1)
7282                                 rc1 = -EOPNOTSUPP;
7283                 }
7284         }
7285
7286         return rc1;
7287 }
7288
7289 static int print_instance(const char *mntdir, char *buf, size_t buflen,
7290                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
7291 {
7292         int rc = 0;
7293
7294         if (opt_fsname == opt_instance) { /* both true or both false */
7295                 rc = llapi_getname(mntdir, buf, buflen);
7296         } else if (opt_fsname) {
7297                 /*
7298                  * llapi_search_mounts() fills @buf with fsname, but that is not
7299                  * called if explicit paths are specified on the command-line
7300                  */
7301                 if (buf[0] == '\0')
7302                         rc = llapi_get_fsname(mntdir, buf, buflen);
7303         } else /* if (opt_instance) */ {
7304                 rc = llapi_get_instance(mntdir, buf, buflen);
7305         }
7306
7307         if (rc < 0) {
7308                 fprintf(stderr, "cannot get instance for '%s': %s\n",
7309                         mntdir, strerror(-rc));
7310                 return rc;
7311         }
7312
7313         if (opt_mntdir)
7314                 printf("%s %s\n", buf, mntdir);
7315         else
7316                 printf("%s\n", buf);
7317
7318         return 0;
7319 }
7320
7321 static int lfs_getname(int argc, char **argv)
7322 {
7323         struct option long_opts[] = {
7324         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7325         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
7326         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
7327         { .name = NULL} };
7328         bool opt_instance = false, opt_fsname = false;
7329         char fsname[PATH_MAX] = "";
7330         int rc = 0, rc2, c;
7331
7332         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
7333                 switch (c) {
7334                 case 'i':
7335                         opt_instance = true;
7336                         break;
7337                 case 'n':
7338                         opt_fsname = true;
7339                         break;
7340                 default:
7341                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7342                                 progname, argv[optind - 1]);
7343                         fallthrough;
7344                 case 'h':
7345                         return CMD_HELP;
7346                 }
7347         }
7348
7349         if (optind == argc) { /* no paths specified, get all paths. */
7350                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
7351                 int index = 0;
7352
7353                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7354                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
7355                                              opt_instance, opt_fsname, true);
7356                         if (!rc)
7357                                 rc = rc2;
7358                         path[0] = fsname[0] = mntdir[0] = '\0';
7359                 }
7360         } else { /* paths specified, only attempt to search these. */
7361                 bool opt_mntdir;
7362
7363                 /* if only one path is given, print only requested info */
7364                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
7365
7366                 for (; optind < argc; optind++) {
7367                         rc2 = print_instance(argv[optind], fsname,
7368                                              sizeof(fsname), opt_instance,
7369                                              opt_fsname, opt_mntdir);
7370                         if (!rc)
7371                                 rc = rc2;
7372                         fsname[0] = '\0';
7373                 }
7374         }
7375
7376         return rc;
7377 }
7378
7379 static int lfs_check(int argc, char **argv)
7380 {
7381         char mntdir[PATH_MAX] = {'\0'};
7382         int num_types = 1;
7383         char *obd_types[3];
7384         char obd_type1[4];
7385         char obd_type2[4];
7386         char obd_type3[4];
7387         int rc;
7388
7389         if (argc != 2) {
7390                 fprintf(stderr, "%s check: server type must be specified\n",
7391                         progname);
7392                 return CMD_HELP;
7393         }
7394
7395         obd_types[0] = obd_type1;
7396         obd_types[1] = obd_type2;
7397         obd_types[2] = obd_type3;
7398
7399         if (strcmp(argv[1], "osts") == 0) {
7400                 strcpy(obd_types[0], "osc");
7401         } else if (strcmp(argv[1], "mdts") == 0 ||
7402                    strcmp(argv[1], "mds") == 0) {
7403                 strcpy(obd_types[0], "mdc");
7404         } else if (strcmp(argv[1], "mgts") == 0) {
7405                 strcpy(obd_types[0], "mgc");
7406         } else if (strcmp(argv[1], "all") == 0 ||
7407                    strcmp(argv[1], "servers") == 0) {
7408                 num_types = 3;
7409                 strcpy(obd_types[0], "osc");
7410                 strcpy(obd_types[1], "mdc");
7411                 strcpy(obd_types[2], "mgc");
7412         } else {
7413                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
7414                         progname, argv[1]);
7415                 return CMD_HELP;
7416         }
7417
7418         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
7419         if (rc < 0 || mntdir[0] == '\0') {
7420                 fprintf(stderr,
7421                         "%s check: cannot find mounted Lustre filesystem: %s\n",
7422                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
7423                 return rc;
7424         }
7425
7426         rc = llapi_target_check(num_types, obd_types, mntdir);
7427         if (rc)
7428                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
7429                         progname, argv[1], strerror(-rc));
7430
7431         return rc;
7432 }
7433
7434 #ifdef HAVE_SYS_QUOTA_H
7435 #define ADD_OVERFLOW(a, b) \
7436                      ((((a) + (b)) < (a)) ? \
7437                       ((a) = ULONG_MAX) : ((a) = (a) + (b)))
7438
7439 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
7440  * returns the value or ULONG_MAX on integer overflow or incorrect format
7441  * Notes:
7442  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
7443  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
7444  *        3. empty integer value is interpreted as 0
7445  */
7446 static unsigned long str2sec(const char *timestr)
7447 {
7448         const char spec[] = "smhdw";
7449         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7450         unsigned long val = 0;
7451         char *tail;
7452
7453         if (strpbrk(timestr, spec) == NULL) {
7454                 /*
7455                  * no specifiers inside the time string,
7456                  * should treat it as an integer value
7457                  */
7458                 val = strtoul(timestr, &tail, 10);
7459                 return *tail ? ULONG_MAX : val;
7460         }
7461
7462         /* format string is XXwXXdXXhXXmXXs */
7463         while (*timestr) {
7464                 unsigned long v;
7465                 int ind;
7466                 char *ptr;
7467
7468                 v = strtoul(timestr, &tail, 10);
7469                 if (v == ULONG_MAX || *tail == '\0')
7470                         /*
7471                          * value too large (ULONG_MAX or more)
7472                          * or missing specifier
7473                          */
7474                         goto error;
7475
7476                 ptr = strchr(spec, *tail);
7477                 if (!ptr)
7478                         /* unknown specifier */
7479                         goto error;
7480
7481                 ind = ptr - spec;
7482
7483                 /* check if product will overflow the type */
7484                 if (!(v < ULONG_MAX / mult[ind]))
7485                         goto error;
7486
7487                 ADD_OVERFLOW(val, mult[ind] * v);
7488                 if (val == ULONG_MAX)
7489                         goto error;
7490
7491                 timestr = tail + 1;
7492         }
7493
7494         return val;
7495
7496 error:
7497         return ULONG_MAX;
7498 }
7499
7500 #define ARG2ULL(nr, str, def_units)                                     \
7501 do {                                                                    \
7502         unsigned long long limit, units = def_units;                    \
7503         int rc;                                                         \
7504                                                                         \
7505         rc = llapi_parse_size(str, &limit, &units, 1);                  \
7506         if (rc < 0) {                                                   \
7507                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
7508                         progname, str);                                 \
7509                 return CMD_HELP;                                        \
7510         }                                                               \
7511         nr = limit;                                                     \
7512 } while (0)
7513
7514 static inline int has_times_option(int argc, char **argv)
7515 {
7516         int i;
7517
7518         for (i = 1; i < argc; i++)
7519                 if (!strcmp(argv[i], "-t"))
7520                         return 1;
7521
7522         return 0;
7523 }
7524
7525 static inline int lfs_verify_poolarg(char *pool)
7526 {
7527         if (strnlen(optarg, LOV_MAXPOOLNAME + 1) > LOV_MAXPOOLNAME) {
7528                 fprintf(stderr,
7529                         "Pool name '%.*s' is longer than %d\n",
7530                         LOV_MAXPOOLNAME, pool, LOV_MAXPOOLNAME);
7531                 return 1;
7532         }
7533         return 0;
7534 }
7535
7536 /* special grace time, only notify the user when its quota is over soft limit
7537  * but doesn't block new writes until the hard limit is reached.
7538  */
7539 #define NOTIFY_GRACE            "notify"
7540 #define NOTIFY_GRACE_TIME       LQUOTA_GRACE_MASK
7541
7542 #ifndef toqb
7543 static inline __u64 lustre_stoqb(size_t space)
7544 {
7545         return (space + QIF_DQBLKSIZE - 1) >> QIF_DQBLKSIZE_BITS;
7546 }
7547 #else
7548 #define lustre_stoqb   toqb
7549 #endif
7550
7551 int lfs_setquota_times(int argc, char **argv, struct if_quotactl *qctl)
7552 {
7553         int c, rc;
7554         char *mnt, *obd_type = (char *)qctl->obd_type;
7555         struct obd_dqblk *dqb = &qctl->qc_dqblk;
7556         struct obd_dqinfo *dqi = &qctl->qc_dqinfo;
7557         struct option long_opts[] = {
7558         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
7559         { .val = 'g',   .name = "group",        .has_arg = no_argument },
7560         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7561         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
7562         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
7563         { .val = 't',   .name = "times",        .has_arg = no_argument },
7564         { .val = 'u',   .name = "user",         .has_arg = no_argument },
7565         { .val = LFS_POOL_OPT,
7566                         .name = "pool",         .has_arg = required_argument },
7567         { .name = NULL } };
7568         int qtype;
7569
7570         qctl->qc_cmd  = LUSTRE_Q_SETINFO;
7571         qctl->qc_type = ALLQUOTA;
7572
7573         while ((c = getopt_long(argc, argv, "b:ghi:ptu",
7574                                 long_opts, NULL)) != -1) {
7575                 switch (c) {
7576                 case 'u':
7577                         qtype = USRQUOTA;
7578                         goto quota_type;
7579                 case 'g':
7580                         qtype = GRPQUOTA;
7581                         goto quota_type;
7582                 case 'p':
7583                         qtype = PRJQUOTA;
7584 quota_type:
7585                         if (qctl->qc_type != ALLQUOTA) {
7586                                 fprintf(stderr,
7587                                         "%s: -u/g/p cannot be used more than once\n",
7588                                         progname);
7589                                 return CMD_HELP;
7590                         }
7591                         qctl->qc_type = qtype;
7592                         break;
7593                 case 'b':
7594                         if (strncmp(optarg, NOTIFY_GRACE,
7595                                     strlen(NOTIFY_GRACE)) == 0) {
7596                                 dqi->dqi_bgrace = NOTIFY_GRACE_TIME;
7597                         } else {
7598                                 dqi->dqi_bgrace = str2sec(optarg);
7599                                 if (dqi->dqi_bgrace >= NOTIFY_GRACE_TIME) {
7600                                         fprintf(stderr,
7601                                                 "%s: bad block-grace: %s\n",
7602                                                 progname, optarg);
7603                                         return CMD_HELP;
7604                                 }
7605                         }
7606                         dqb->dqb_valid |= QIF_BTIME;
7607                         break;
7608                 case 'i':
7609                         if (strncmp(optarg, NOTIFY_GRACE,
7610                                     strlen(NOTIFY_GRACE)) == 0) {
7611                                 dqi->dqi_igrace = NOTIFY_GRACE_TIME;
7612                         } else {
7613                                 dqi->dqi_igrace = str2sec(optarg);
7614                                 if (dqi->dqi_igrace >= NOTIFY_GRACE_TIME) {
7615                                         fprintf(stderr,
7616                                                 "%s: bad inode-grace: %s\n",
7617                                                 progname, optarg);
7618                                         return CMD_HELP;
7619                                 }
7620                         }
7621                         dqb->dqb_valid |= QIF_ITIME;
7622                         break;
7623                 case 't': /* Yes, of course! */
7624                         break;
7625                 case LFS_POOL_OPT:
7626                         if (lfs_verify_poolarg(optarg))
7627                                 return -1;
7628                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7629                         qctl->qc_cmd  = LUSTRE_Q_SETINFOPOOL;
7630                         break;
7631                 /* getopt prints error message for us when opterr != 0 */
7632                 default:
7633                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7634                                 progname, argv[optind - 1]);
7635                         fallthrough;
7636                 case 'h':
7637                         return CMD_HELP;
7638                 }
7639         }
7640
7641         if (qctl->qc_type == ALLQUOTA) {
7642                 fprintf(stderr, "%s: neither -u, -g nor -p specified\n",
7643                         progname);
7644                 return CMD_HELP;
7645         }
7646
7647         if (optind != argc - 1) {
7648                 fprintf(stderr, "%s: unexpected parameter '%s'\n",
7649                         progname, argv[optind + 1]);
7650                 return CMD_HELP;
7651         }
7652
7653         mnt = argv[optind];
7654         rc = llapi_quotactl(mnt, qctl);
7655         if (rc) {
7656                 if (*obd_type)
7657                         fprintf(stderr, "%s %s ", obd_type,
7658                                 obd_uuid2str(&qctl->obd_uuid));
7659                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
7660                 return rc;
7661         }
7662
7663         return 0;
7664 }
7665
7666 #define BSLIMIT (1 << 0)
7667 #define BHLIMIT (1 << 1)
7668 #define ISLIMIT (1 << 2)
7669 #define IHLIMIT (1 << 3)
7670
7671 int lfs_setquota(int argc, char **argv)
7672 {
7673         int c, rc = 0;
7674         struct if_quotactl *qctl;
7675         char *mnt, *obd_type;
7676         struct obd_dqblk *dqb;
7677         struct option long_opts[] = {
7678         { .val = 'b',   .name = "block-softlimit",
7679                                                 .has_arg = required_argument },
7680         { .val = 'B',   .name = "block-hardlimit",
7681                                                 .has_arg = required_argument },
7682         { .val = 'd',   .name = "default",      .has_arg = no_argument },
7683         { .val = 'g',   .name = "group",        .has_arg = required_argument },
7684         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
7685         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7686         { .val = 'i',   .name = "inode-softlimit",
7687                                                 .has_arg = required_argument },
7688         { .val = 'I',   .name = "inode-hardlimit",
7689                                                 .has_arg = required_argument },
7690         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
7691         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
7692         { .val = 'u',   .name = "user",         .has_arg = required_argument },
7693         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
7694         { .val = LFS_POOL_OPT,
7695                         .name = "pool",         .has_arg = required_argument },
7696         { .name = NULL } };
7697         unsigned int limit_mask = 0;
7698         bool use_default = false;
7699         int qtype, qctl_len;
7700
7701         qctl_len = sizeof(*qctl) + LOV_MAXPOOLNAME + 1;
7702         qctl = malloc(qctl_len);
7703         if (!qctl)
7704                 return -ENOMEM;
7705
7706         memset(qctl, 0, qctl_len);
7707         obd_type = (char *)qctl->obd_type;
7708         dqb = &qctl->qc_dqblk;
7709
7710         if (has_times_option(argc, argv)) {
7711                 rc = lfs_setquota_times(argc, argv, qctl);
7712                 goto out;
7713         }
7714
7715         qctl->qc_cmd  = LUSTRE_Q_SETQUOTA;
7716         qctl->qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
7717                                    * so it can be used as a marker that qc_type
7718                                    * isn't reinitialized from command line
7719                                    */
7720
7721         while ((c = getopt_long(argc, argv, "b:B:dg:Ghi:I:p:Pu:U",
7722                 long_opts, NULL)) != -1) {
7723                 switch (c) {
7724                 case 'U':
7725                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7726                         qtype = USRQUOTA;
7727                         qctl->qc_id = 0;
7728                         goto quota_type_def;
7729                 case 'u':
7730                         qtype = USRQUOTA;
7731                         rc = name2uid(&qctl->qc_id, optarg);
7732                         goto quota_type;
7733                 case 'G':
7734                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7735                         qtype = GRPQUOTA;
7736                         qctl->qc_id = 0;
7737                         goto quota_type_def;
7738                 case 'g':
7739                         qtype = GRPQUOTA;
7740                         rc = name2gid(&qctl->qc_id, optarg);
7741                         goto quota_type;
7742                 case 'P':
7743                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7744                         qtype = PRJQUOTA;
7745                         qctl->qc_id = 0;
7746                         goto quota_type_def;
7747                 case 'p':
7748                         qtype = PRJQUOTA;
7749                         rc = name2projid(&qctl->qc_id, optarg);
7750 quota_type:
7751                         if (rc) {
7752                                 if (str2quotaid(&qctl->qc_id, optarg)) {
7753                                         fprintf(stderr,
7754                                                 "%s setquota: invalid id '%s'\n",
7755                                                 progname, optarg);
7756                                         rc = -1;
7757                                         goto out;
7758                                 }
7759                         }
7760
7761                         if (qctl->qc_id == 0) {
7762                                 fprintf(stderr,
7763                                         "%s setquota: can't set quota for root usr/group/project.\n",
7764                                         progname);
7765                                 rc = -1;
7766                                 goto out;
7767                         }
7768
7769 quota_type_def:
7770                         if (qctl->qc_type != ALLQUOTA) {
7771                                 fprintf(stderr,
7772                                         "%s setquota: only one of -u, -U, -g, -G, -p or -P may be specified\n",
7773                                         progname);
7774                                 rc = CMD_HELP;
7775                                 goto out;
7776                         }
7777                         qctl->qc_type = qtype;
7778                         break;
7779                 case 'd':
7780                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7781                         use_default = true;
7782                         break;
7783                 case 'b':
7784                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
7785                         dqb->dqb_bsoftlimit >>= 10;
7786                         limit_mask |= BSLIMIT;
7787                         if (dqb->dqb_bsoftlimit &&
7788                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
7789                                 fprintf(stderr,
7790                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7791                                         progname,
7792                                         (unsigned long long)dqb->dqb_bsoftlimit,
7793                                         progname);
7794                         break;
7795                 case 'B':
7796                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
7797                         dqb->dqb_bhardlimit >>= 10;
7798                         limit_mask |= BHLIMIT;
7799                         if (dqb->dqb_bhardlimit &&
7800                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
7801                                 fprintf(stderr,
7802                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
7803                                         "See '%s help setquota' or Lustre manual for details\n",
7804                                         progname,
7805                                         (unsigned long long)dqb->dqb_bhardlimit,
7806                                         progname);
7807                         break;
7808                 case 'i':
7809                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
7810                         limit_mask |= ISLIMIT;
7811                         if (dqb->dqb_isoftlimit &&
7812                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
7813                                 fprintf(stderr,
7814                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7815                                         progname,
7816                                         (unsigned long long)dqb->dqb_isoftlimit,
7817                                         progname);
7818                         break;
7819                 case 'I':
7820                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
7821                         limit_mask |= IHLIMIT;
7822                         if (dqb->dqb_ihardlimit &&
7823                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
7824                                 fprintf(stderr,
7825                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7826                                         progname,
7827                                         (unsigned long long)dqb->dqb_ihardlimit,
7828                                         progname);
7829                         break;
7830                 case LFS_POOL_OPT:
7831                         if (lfs_verify_poolarg(optarg)) {
7832                                 rc = -1;
7833                                 goto out;
7834                         }
7835                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7836                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_SETDEFAULT ?
7837                                                 LUSTRE_Q_SETDEFAULT_POOL :
7838                                                 LUSTRE_Q_SETQUOTAPOOL;
7839                         break;
7840                 default:
7841                         fprintf(stderr,
7842                                 "%s setquota: unrecognized option '%s'\n",
7843                                 progname, argv[optind - 1]);
7844                         fallthrough;
7845                 case 'h':
7846                         rc = CMD_HELP;
7847                         goto out;
7848                 }
7849         }
7850
7851         if (qctl->qc_type == ALLQUOTA) {
7852                 fprintf(stderr,
7853                         "%s setquota: either -u or -g must be specified\n",
7854                         progname);
7855                 rc = CMD_HELP;
7856                 goto out;
7857         }
7858
7859         if (!use_default && limit_mask == 0) {
7860                 fprintf(stderr,
7861                         "%s setquota: at least one limit must be specified\n",
7862                         progname);
7863                 rc = CMD_HELP;
7864                 goto out;
7865         }
7866
7867         if (use_default && limit_mask != 0) {
7868                 fprintf(stderr,
7869                         "%s setquota: limits should not be specified when using default quota\n",
7870                         progname);
7871                 rc = CMD_HELP;
7872                 goto out;
7873         }
7874
7875         if (use_default && qctl->qc_id == 0) {
7876                 fprintf(stderr,
7877                         "%s setquota: can not set default quota for root user/group/project\n",
7878                         progname);
7879                 rc = CMD_HELP;
7880                 goto out;
7881         }
7882
7883         if (optind != argc - 1) {
7884                 fprintf(stderr,
7885                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
7886                         progname, argv[optind]);
7887                 rc = CMD_HELP;
7888                 goto out;
7889         }
7890
7891         mnt = argv[optind];
7892
7893         if (use_default) {
7894                 dqb->dqb_bhardlimit = 0;
7895                 dqb->dqb_bsoftlimit = 0;
7896                 dqb->dqb_ihardlimit = 0;
7897                 dqb->dqb_isoftlimit = 0;
7898                 dqb->dqb_itime = 0;
7899                 dqb->dqb_btime = 0;
7900                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
7901                 /* do not set inode limits for Pool Quotas */
7902                 if (qctl->qc_cmd  == LUSTRE_Q_SETDEFAULT_POOL)
7903                         dqb->dqb_valid ^= QIF_ILIMITS | QIF_ITIME;
7904         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
7905                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
7906                 /* sigh, we can't just set blimits/ilimits */
7907                 struct if_quotactl *tmp_qctl;
7908
7909                 tmp_qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
7910                 if (!tmp_qctl)
7911                         goto out;
7912
7913                 if (qctl->qc_cmd == LUSTRE_Q_SETQUOTAPOOL) {
7914                         tmp_qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
7915                         strncpy(tmp_qctl->qc_poolname, qctl->qc_poolname,
7916                                 LOV_MAXPOOLNAME);
7917                 } else {
7918                         tmp_qctl->qc_cmd  = LUSTRE_Q_GETQUOTA;
7919                 }
7920                 tmp_qctl->qc_type = qctl->qc_type;
7921                 tmp_qctl->qc_id = qctl->qc_id;
7922
7923                 rc = llapi_quotactl(mnt, tmp_qctl);
7924                 if (rc < 0) {
7925                         free(tmp_qctl);
7926                         goto out;
7927                 }
7928
7929                 if (!(limit_mask & BHLIMIT))
7930                         dqb->dqb_bhardlimit = tmp_qctl->qc_dqblk.dqb_bhardlimit;
7931                 if (!(limit_mask & BSLIMIT))
7932                         dqb->dqb_bsoftlimit = tmp_qctl->qc_dqblk.dqb_bsoftlimit;
7933                 if (!(limit_mask & IHLIMIT))
7934                         dqb->dqb_ihardlimit = tmp_qctl->qc_dqblk.dqb_ihardlimit;
7935                 if (!(limit_mask & ISLIMIT))
7936                         dqb->dqb_isoftlimit = tmp_qctl->qc_dqblk.dqb_isoftlimit;
7937
7938                 /* Keep grace times if we have got no softlimit arguments */
7939                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
7940                         dqb->dqb_valid |= QIF_BTIME;
7941                         dqb->dqb_btime = tmp_qctl->qc_dqblk.dqb_btime;
7942                 }
7943
7944                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
7945                         dqb->dqb_valid |= QIF_ITIME;
7946                         dqb->dqb_itime = tmp_qctl->qc_dqblk.dqb_itime;
7947                 }
7948                 free(tmp_qctl);
7949         }
7950
7951         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
7952         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
7953
7954         rc = llapi_quotactl(mnt, qctl);
7955         if (rc) {
7956                 if (*obd_type)
7957                         fprintf(stderr,
7958                                 "%s setquota: cannot quotactl '%s' '%s': %s\n",
7959                                 progname, obd_type,
7960                                 obd_uuid2str(&qctl->obd_uuid), strerror(-rc));
7961                 else
7962                         fprintf(stderr,
7963                                 "%s setquota: quotactl failed: %s\n",
7964                                 progname, strerror(-rc));
7965         }
7966 out:
7967         if (rc)
7968                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
7969
7970         free(qctl);
7971         return rc;
7972 }
7973
7974 /* Converts seconds value into format string
7975  * result is returned in buf
7976  * Notes:
7977  *        1. result is in descenting order: 1w2d3h4m5s
7978  *        2. zero fields are not filled (except for p. 3): 5d1s
7979  *        3. zero seconds value is presented as "0s"
7980  */
7981 static char *__sec2str(time_t seconds, char *buf)
7982 {
7983         const char spec[] = "smhdw";
7984         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7985         unsigned long c;
7986         char *tail = buf;
7987         int i;
7988
7989         for (i = ARRAY_SIZE(mult) - 1 ; i >= 0; i--) {
7990                 c = seconds / mult[i];
7991
7992                 if (c > 0 || (i == 0 && buf == tail))
7993                         tail += scnprintf(tail, 40-(tail-buf), "%lu%c", c,
7994                                           spec[i]);
7995
7996                 seconds %= mult[i];
7997         }
7998
7999         return tail;
8000 }
8001
8002 static void sec2str(time_t seconds, char *buf, int rc)
8003 {
8004         char *tail = buf;
8005
8006         if (rc)
8007                 *tail++ = '[';
8008
8009         tail = __sec2str(seconds, tail);
8010
8011         if (rc && tail - buf < 39) {
8012                 *tail++ = ']';
8013                 *tail++ = 0;
8014         }
8015 }
8016
8017 static void diff2str(time_t seconds, char *buf, time_t now)
8018 {
8019         buf[0] = 0;
8020         if (!seconds)
8021                 return;
8022         if (seconds <= now) {
8023                 strcpy(buf, "none");
8024                 return;
8025         }
8026         __sec2str(seconds - now, buf);
8027 }
8028
8029 static void print_quota_title(char *name, struct if_quotactl *qctl,
8030                               bool human_readable, bool show_default)
8031 {
8032         if (show_default) {
8033                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
8034                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
8035                        "Filesystem", "bquota", "blimit", "bgrace",
8036                        "iquota", "ilimit", "igrace");
8037         } else {
8038                 printf("Disk quotas for %s %s (%cid %u):\n",
8039                        qtype_name(qctl->qc_type), name,
8040                        *qtype_name(qctl->qc_type), qctl->qc_id);
8041                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
8042                        "Filesystem", human_readable ? "used" : "kbytes",
8043                        "quota", "limit", "grace",
8044                        "files", "quota", "limit", "grace");
8045         }
8046 }
8047
8048 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
8049 {
8050         if (!h) {
8051                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
8052         } else {
8053                 if (num >> 40)
8054                         snprintf(buf, buflen, "%5.4gP",
8055                                  (double)num / ((__u64)1 << 40));
8056                 else if (num >> 30)
8057                         snprintf(buf, buflen, "%5.4gT",
8058                                  (double)num / (1 << 30));
8059                 else if (num >> 20)
8060                         snprintf(buf, buflen, "%5.4gG",
8061                                  (double)num / (1 << 20));
8062                 else if (num >> 10)
8063                         snprintf(buf, buflen, "%5.4gM",
8064                                  (double)num / (1 << 10));
8065                 else
8066                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
8067         }
8068 }
8069
8070 #ifdef HAVE_NATIVE_CLIENT
8071 /* In the current Lustre implementation, the grace time is either the time
8072  * or the timestamp to be used after some quota ID exceeds the soft limt,
8073  * 48 bits should be enough, its high 16 bits can be used as quota flags.
8074  */
8075 #define LQUOTA_GRACE_BITS       48
8076 #define LQUOTA_GRACE_MASK       ((1ULL << LQUOTA_GRACE_BITS) - 1)
8077 #define LQUOTA_GRACE_MAX        LQUOTA_GRACE_MASK
8078 #define LQUOTA_GRACE(t)         (t & LQUOTA_GRACE_MASK)
8079 #define LQUOTA_FLAG(t)          (t >> LQUOTA_GRACE_BITS)
8080 #define LQUOTA_GRACE_FLAG(t, f) ((__u64)t | (__u64)f << LQUOTA_GRACE_BITS)
8081 #endif
8082
8083 #define STRBUF_LEN      24
8084 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
8085                         int rc, bool h, bool show_default)
8086 {
8087         time_t now;
8088
8089         time(&now);
8090
8091         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
8092             qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
8093             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT ||
8094             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT_POOL) {
8095                 int bover = 0, iover = 0;
8096                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
8097                 char numbuf[3][STRBUF_LEN + 2]; /* 2 for brackets or wildcard */
8098                 char timebuf[40];
8099                 char strbuf[STRBUF_LEN];
8100
8101                 if (dqb->dqb_bhardlimit &&
8102                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
8103                         bover = 1;
8104                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
8105                         if (dqb->dqb_btime > now)
8106                                 bover = 2;
8107                         else
8108                                 bover = 3;
8109                 }
8110
8111                 if (dqb->dqb_ihardlimit &&
8112                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
8113                         iover = 1;
8114                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
8115                         if (dqb->dqb_itime > now)
8116                                 iover = 2;
8117                         else
8118                                 iover = 3;
8119                 }
8120
8121                 if (strlen(mnt) > 15)
8122                         printf("%s\n%15s", mnt, "");
8123                 else
8124                         printf("%15s", mnt);
8125
8126                 if (bover)
8127                         diff2str(dqb->dqb_btime, timebuf, now);
8128                 else if (show_default)
8129                         snprintf(timebuf, sizeof(timebuf), "%llu",
8130                                  (unsigned long long)dqb->dqb_btime);
8131
8132                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
8133                            strbuf, sizeof(strbuf), h);
8134                 if (rc == -EREMOTEIO)
8135                         sprintf(numbuf[0], "%s*", strbuf);
8136                 else
8137                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
8138                                 "%s" : "[%s]", strbuf);
8139
8140                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
8141                 if (type == QC_GENERAL)
8142                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
8143                                 "%s" : "[%s]", strbuf);
8144                 else
8145                         sprintf(numbuf[1], "%s", "-");
8146
8147                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
8148                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
8149                         "%s" : "[%s]", strbuf);
8150
8151                 if (show_default)
8152                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
8153                 else
8154                         printf(" %7s%c %6s %7s %7s",
8155                                numbuf[0], bover ? '*' : ' ', numbuf[1],
8156                                numbuf[2], bover > 1 ? timebuf : "-");
8157
8158                 if (iover)
8159                         diff2str(dqb->dqb_itime, timebuf, now);
8160                 else if (show_default)
8161                         snprintf(timebuf, sizeof(timebuf), "%llu",
8162                                  (unsigned long long)dqb->dqb_itime);
8163
8164                 snprintf(numbuf[0], sizeof(numbuf),
8165                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
8166                          (uintmax_t)dqb->dqb_curinodes);
8167
8168                 if (type == QC_GENERAL)
8169                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
8170                                 "%ju" : "[%ju]",
8171                                 (uintmax_t)dqb->dqb_isoftlimit);
8172                 else
8173                         sprintf(numbuf[1], "%s", "-");
8174
8175                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
8176                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
8177
8178                 if (show_default)
8179                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
8180                 else if (type != QC_OSTIDX)
8181                         printf(" %7s%c %6s %7s %7s",
8182                                numbuf[0], iover ? '*' : ' ', numbuf[1],
8183                                numbuf[2], iover > 1 ? timebuf : "-");
8184                 else
8185                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
8186                 printf("\n");
8187         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO || LUSTRE_Q_GETINFOPOOL ||
8188                    qctl->qc_cmd == Q_GETOINFO) {
8189                 char bgtimebuf[40];
8190                 char igtimebuf[40];
8191
8192                 if (qctl->qc_dqinfo.dqi_bgrace == NOTIFY_GRACE_TIME)
8193                         strncpy(bgtimebuf, NOTIFY_GRACE, 40);
8194                 else
8195                         sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
8196                 if (qctl->qc_dqinfo.dqi_igrace == NOTIFY_GRACE_TIME)
8197                         strncpy(igtimebuf, NOTIFY_GRACE, 40);
8198                 else
8199                         sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
8200
8201                 printf("Block grace time: %s; Inode grace time: %s\n",
8202                        bgtimebuf, igtimebuf);
8203         }
8204 }
8205
8206 static int tgt_name2index(const char *tgtname, unsigned int *idx)
8207 {
8208         char *dash, *endp;
8209
8210         /* format is "lustre-OST0001" */
8211         dash = memchr(tgtname, '-', LUSTRE_MAXFSNAME + 1);
8212         if (!dash) {
8213                 fprintf(stderr, "wrong tgtname format '%s'\n", tgtname);
8214                 return -EINVAL;
8215         }
8216         dash += 4;
8217
8218         *idx = strtoul(dash, &endp, 16);
8219         if (*idx > 0xffff) {
8220                 fprintf(stderr, "wrong index %s\n", tgtname);
8221                 return -ERANGE;
8222         }
8223
8224         return 0;
8225 }
8226
8227 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
8228                            bool h, __u64 *total)
8229 {
8230         int rc = 0, rc1 = 0, count = 0, i = 0;
8231         char **list = NULL, *buffer = NULL;
8232         __u32 valid = qctl->qc_valid;
8233
8234         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL && is_mdt)
8235                 return 0;
8236
8237         /* Is it correct for the case OST0000, OST0002, OST0003 -
8238          * we will ask OST0001 that is absent and won't ask OST0003? */
8239         rc = llapi_get_obd_count(mnt, &count, is_mdt);
8240         if (rc) {
8241                 fprintf(stderr, "can not get %s count: %s\n",
8242                         is_mdt ? "mdt" : "ost", strerror(-rc));
8243                 return rc;
8244         }
8245
8246         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8247                 char fname[PATH_MAX];
8248                 char fsname[LUSTRE_MAXFSNAME + 1];
8249                 int bufsize = sizeof(struct obd_uuid) * count;
8250
8251                 rc = llapi_search_fsname(mnt, fsname);
8252                 if (rc) {
8253                         fprintf(stderr, "cannot get fsname for mountpoint %s\n",
8254                                 mnt);
8255                         goto out;
8256                 }
8257                 buffer = malloc(bufsize + sizeof(*list) * count);
8258                 if (!buffer)
8259                         return -ENOMEM;
8260                 list = (char **)(buffer + bufsize);
8261                 snprintf(fname, PATH_MAX, "%s.%s", fsname, qctl->qc_poolname);
8262                 count = llapi_get_poolmembers(fname, list, count,
8263                                               buffer, bufsize);
8264                 if (count <= 0)
8265                         goto out;
8266         }
8267
8268         for (i = 0; i < count; i++) {
8269                 if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8270                         unsigned int index;
8271
8272                         if (tgt_name2index(list[i], &index))
8273                                 continue;
8274                         qctl->qc_idx = index;
8275                 } else {
8276                         qctl->qc_idx = i;
8277                 }
8278
8279                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
8280                 rc = llapi_quotactl(mnt, qctl);
8281                 if (rc) {
8282                         /* It is remote client case. */
8283                         if (rc == -EOPNOTSUPP) {
8284                                 rc = 0;
8285                                 goto out;
8286                         }
8287
8288                         if (!rc1)
8289                                 rc1 = rc;
8290                         fprintf(stderr, "quotactl %s%d failed.\n",
8291                                 is_mdt ? "mdt" : "ost", qctl->qc_idx);
8292                         continue;
8293                 }
8294
8295                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
8296                             qctl->qc_valid, 0, h, false);
8297                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
8298                                    qctl->qc_dqblk.dqb_bhardlimit;
8299         }
8300 out:
8301         if (buffer)
8302                 free(buffer);
8303         qctl->qc_valid = valid;
8304         return rc ? : rc1;
8305 }
8306
8307 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
8308                            int verbose, int quiet, bool human_readable,
8309                            bool show_default)
8310 {
8311         int rc1 = 0, rc2 = 0, rc3 = 0;
8312         char *obd_type = (char *)qctl->obd_type;
8313         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
8314         __u64 total_ialloc = 0, total_balloc = 0;
8315         bool use_default_for_blk = false;
8316         bool use_default_for_file = false;
8317         int inacc;
8318
8319         rc1 = llapi_quotactl(mnt, qctl);
8320         if (rc1 < 0) {
8321                 switch (rc1) {
8322                 case -ESRCH:
8323                         fprintf(stderr, "%s quotas are not enabled.\n",
8324                                 qtype_name(qctl->qc_type));
8325                         goto out;
8326                 case -EPERM:
8327                         fprintf(stderr, "Permission denied.\n");
8328                 case -ENODEV:
8329                 case -ENOENT:
8330                         /* We already got error message. */
8331                         goto out;
8332                 default:
8333                         fprintf(stderr, "Unexpected quotactl error: %s\n",
8334                                 strerror(-rc1));
8335                 }
8336         }
8337
8338         if (!show_default && qctl->qc_id == 0) {
8339                 qctl->qc_dqblk.dqb_bhardlimit = 0;
8340                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
8341                 qctl->qc_dqblk.dqb_ihardlimit = 0;
8342                 qctl->qc_dqblk.dqb_isoftlimit = 0;
8343                 qctl->qc_dqblk.dqb_btime = 0;
8344                 qctl->qc_dqblk.dqb_itime = 0;
8345                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
8346         }
8347
8348         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
8349             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
8350                 use_default_for_blk = true;
8351                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
8352         }
8353
8354         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
8355             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
8356                 use_default_for_file = true;
8357                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
8358         }
8359
8360         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8361              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
8362              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT_POOL ||
8363              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
8364                 print_quota_title(name, qctl, human_readable, show_default);
8365
8366         if (rc1 && *obd_type)
8367                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
8368
8369         if (qctl->qc_valid != QC_GENERAL)
8370                 mnt = "";
8371
8372         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8373                  qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8374                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
8375                  (QIF_LIMITS|QIF_USAGE));
8376
8377         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
8378
8379         if (!show_default && verbose &&
8380             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
8381             qctl->qc_cmd != LUSTRE_Q_GETINFOPOOL) {
8382                 char strbuf[STRBUF_LEN];
8383
8384                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
8385                                       &total_ialloc);
8386                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
8387                                       &total_balloc);
8388                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
8389                            human_readable);
8390                 printf("Total allocated inode limit: %ju, total allocated block limit: %s\n",
8391                        (uintmax_t)total_ialloc, strbuf);
8392         }
8393
8394         if (use_default_for_blk)
8395                 printf("%cid %u is using default block quota setting\n",
8396                        *qtype_name(qctl->qc_type), qctl->qc_id);
8397
8398         if (use_default_for_file)
8399                 printf("%cid %u is using default file quota setting\n",
8400                        *qtype_name(qctl->qc_type), qctl->qc_id);
8401
8402         if (rc1 || rc2 || rc3 || inacc)
8403                 printf("Some errors happened when getting quota info. Some devices may be not working or deactivated. The data in \"[]\" is inaccurate.\n");
8404 out:
8405         if (rc1)
8406                 return rc1;
8407         if (rc2)
8408                 return rc2;
8409         if (rc3)
8410                 return rc3;
8411         if (inacc)
8412                 return -EIO;
8413
8414         return 0;
8415 }
8416
8417 static int lfs_project(int argc, char **argv)
8418 {
8419         int ret = 0, err = 0, c, i;
8420         struct project_handle_control phc = { 0 };
8421         enum lfs_project_ops_t op;
8422
8423         phc.newline = true;
8424         phc.assign_projid = false;
8425         /* default action */
8426         op = LFS_PROJECT_LIST;
8427
8428         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
8429                 switch (c) {
8430                 case 'c':
8431                         if (op != LFS_PROJECT_LIST) {
8432                                 fprintf(stderr,
8433                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8434                                         progname);
8435                                 return CMD_HELP;
8436                         }
8437
8438                         op = LFS_PROJECT_CHECK;
8439                         break;
8440                 case 'C':
8441                         if (op != LFS_PROJECT_LIST) {
8442                                 fprintf(stderr,
8443                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8444                                         progname);
8445                                 return CMD_HELP;
8446                         }
8447
8448                         op = LFS_PROJECT_CLEAR;
8449                         break;
8450                 case 's':
8451                         if (op != LFS_PROJECT_LIST) {
8452                                 fprintf(stderr,
8453                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8454                                         progname);
8455                                 return CMD_HELP;
8456                         }
8457
8458                         phc.set_inherit = true;
8459                         op = LFS_PROJECT_SET;
8460                         break;
8461                 case 'd':
8462                         phc.dironly = true;
8463                         break;
8464                 case 'k':
8465                         phc.keep_projid = true;
8466                         break;
8467                 case 'r':
8468                         phc.recursive = true;
8469                         break;
8470                 case 'p':
8471                         if (str2quotaid(&phc.projid, optarg)) {
8472                                 fprintf(stderr,
8473                                         "Invalid project ID: %s\n",
8474                                         optarg);
8475                                 return CMD_HELP;
8476                         }
8477
8478                         phc.assign_projid = true;
8479
8480                         break;
8481                 case '0':
8482                         phc.newline = false;
8483                         break;
8484                 default:
8485                         fprintf(stderr, "%s: invalid option '%c'\n",
8486                                 progname, optopt);
8487                         return CMD_HELP;
8488                 }
8489         }
8490
8491         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
8492                 op = LFS_PROJECT_SET;
8493                 phc.set_projid = true;
8494         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
8495                 phc.set_projid = true;
8496         }
8497
8498         switch (op) {
8499         case LFS_PROJECT_CHECK:
8500                 if (phc.keep_projid) {
8501                         fprintf(stderr,
8502                                 "%s: '-k' is useless together with '-c'\n",
8503                                 progname);
8504                         return CMD_HELP;
8505                 }
8506                 break;
8507         case LFS_PROJECT_CLEAR:
8508                 if (!phc.newline) {
8509                         fprintf(stderr,
8510                                 "%s: '-0' is useless together with '-C'\n",
8511                                 progname);
8512                         return CMD_HELP;
8513                 }
8514                 if (phc.assign_projid) {
8515                         fprintf(stderr,
8516                                 "%s: '-p' is useless together with '-C'\n",
8517                                 progname);
8518                         return CMD_HELP;
8519                 }
8520                 break;
8521         case LFS_PROJECT_SET:
8522                 if (!phc.newline) {
8523                         fprintf(stderr,
8524                                 "%s: '-0' is useless together with '-s'\n",
8525                                 progname);
8526                         return CMD_HELP;
8527                 }
8528                 if (phc.keep_projid) {
8529                         fprintf(stderr,
8530                                 "%s: '-k' is useless together with '-s'\n",
8531                                 progname);
8532                         return CMD_HELP;
8533                 }
8534                 break;
8535         default:
8536                 if (!phc.newline) {
8537                         fprintf(stderr,
8538                                 "%s: '-0' is useless for list operations\n",
8539                                 progname);
8540                         return CMD_HELP;
8541                 }
8542                 break;
8543         }
8544
8545         argv += optind;
8546         argc -= optind;
8547         if (argc == 0) {
8548                 fprintf(stderr, "%s: missing file or directory target(s)\n",
8549                         progname);
8550                 return CMD_HELP;
8551         }
8552
8553         for (i = 0; i < argc; i++) {
8554                 switch (op) {
8555                 case LFS_PROJECT_CHECK:
8556                         err = lfs_project_check(argv[i], &phc);
8557                         break;
8558                 case LFS_PROJECT_LIST:
8559                         err = lfs_project_list(argv[i], &phc);
8560                         break;
8561                 case LFS_PROJECT_CLEAR:
8562                         err = lfs_project_clear(argv[i], &phc);
8563                         break;
8564                 case LFS_PROJECT_SET:
8565                         err = lfs_project_set(argv[i], &phc);
8566                         break;
8567                 default:
8568                         break;
8569                 }
8570                 if (err && !ret)
8571                         ret = err;
8572         }
8573
8574         return ret;
8575 }
8576
8577 static int lfs_quota(int argc, char **argv)
8578 {
8579         int c;
8580         char *mnt, *name = NULL;
8581         struct if_quotactl *qctl;
8582         char *obd_uuid;
8583         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
8584         __u32 valid = QC_GENERAL, idx = 0;
8585         bool human_readable = false;
8586         bool show_default = false;
8587         int qtype;
8588         bool show_pools = false;
8589         struct option long_opts[] = {
8590         { .val = LFS_POOL_OPT, .name = "pool", .has_arg = optional_argument },
8591         { .name = NULL } };
8592         char **poollist = NULL;
8593         char *buf = NULL;
8594         int poolcount, i;
8595
8596         qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
8597         if (!qctl)
8598                 return -ENOMEM;
8599
8600         qctl->qc_cmd = LUSTRE_Q_GETQUOTA;
8601         qctl->qc_type = ALLQUOTA;
8602         obd_uuid = (char *)qctl->obd_uuid.uuid;
8603
8604         while ((c = getopt_long(argc, argv, "gGi:I:o:pPqtuUvh",
8605                 long_opts, NULL)) != -1) {
8606                 switch (c) {
8607                 case 'U':
8608                         show_default = true;
8609                 case 'u':
8610                         qtype = USRQUOTA;
8611                         goto quota_type;
8612                 case 'G':
8613                         show_default = true;
8614                 case 'g':
8615                         qtype = GRPQUOTA;
8616                         goto quota_type;
8617                 case 'P':
8618                         show_default = true;
8619                 case 'p':
8620                         qtype = PRJQUOTA;
8621 quota_type:
8622                         if (qctl->qc_type != ALLQUOTA) {
8623                                 fprintf(stderr,
8624                                         "%s quota: only one of -u, -g, or -p may be specified\n",
8625                                         progname);
8626                                 rc = CMD_HELP;
8627                                 goto out;
8628                         }
8629                         qctl->qc_type = qtype;
8630                         break;
8631                 case 't':
8632                         qctl->qc_cmd = LUSTRE_Q_GETINFO;
8633                         break;
8634                 case 'o':
8635                         valid = qctl->qc_valid = QC_UUID;
8636                         snprintf(obd_uuid, sizeof(*obd_uuid), "%s", optarg);
8637                         break;
8638                 case 'i':
8639                         valid = qctl->qc_valid = QC_MDTIDX;
8640                         idx = qctl->qc_idx = atoi(optarg);
8641                         if (idx == 0 && *optarg != '0') {
8642                                 fprintf(stderr,
8643                                         "%s quota: invalid MDT index '%s'\n",
8644                                         progname, optarg);
8645                                 rc = CMD_HELP;
8646                                 goto out;
8647                         }
8648                         break;
8649                 case 'I':
8650                         valid = qctl->qc_valid = QC_OSTIDX;
8651                         idx = qctl->qc_idx = atoi(optarg);
8652                         if (idx == 0 && *optarg != '0') {
8653                                 fprintf(stderr,
8654                                         "%s quota: invalid OST index '%s'\n",
8655                                         progname, optarg);
8656                                 rc = CMD_HELP;
8657                                 goto out;
8658                         }
8659                         break;
8660                 case 'v':
8661                         verbose = 1;
8662                         break;
8663                 case 'q':
8664                         quiet = 1;
8665                         break;
8666                 case 'h':
8667                         human_readable = true;
8668                         break;
8669                 case LFS_POOL_OPT:
8670                         if ((!optarg) && (argv[optind] != NULL) &&
8671                                 (argv[optind][0] != '-') &&
8672                                 (argv[optind][0] != '/')) {
8673                                 optarg = argv[optind++];
8674                                 if (lfs_verify_poolarg(optarg)) {
8675                                         rc = -EINVAL;
8676                                         goto out;
8677                                 }
8678                                 strncpy(qctl->qc_poolname, optarg,
8679                                         LOV_MAXPOOLNAME);
8680                                 if (qctl->qc_cmd == LUSTRE_Q_GETINFO)
8681                                         qctl->qc_cmd = LUSTRE_Q_GETINFOPOOL;
8682                                 else
8683                                         qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
8684                                 break;
8685                         }
8686
8687                         /* optarg is NULL */
8688                         show_pools = true;
8689                         qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
8690                         break;
8691                 default:
8692                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
8693                                 progname, argv[optind - 1]);
8694                         rc = CMD_HELP;
8695                         goto out;
8696                 }
8697         }
8698
8699         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
8700         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8701              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8702              qctl->qc_type == ALLQUOTA &&
8703              optind == argc - 1 && !show_default) {
8704                 qctl->qc_idx = idx;
8705
8706                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
8707                         qctl->qc_type = qtype;
8708                         qctl->qc_valid = valid;
8709                         if (qtype == USRQUOTA) {
8710                                 qctl->qc_id = geteuid();
8711                                 rc = uid2name(&name, qctl->qc_id);
8712                         } else {
8713                                 qctl->qc_id = getegid();
8714                                 rc = gid2name(&name, qctl->qc_id);
8715                                 memset(&qctl->qc_dqblk, 0,
8716                                        sizeof(qctl->qc_dqblk));
8717                         }
8718                         if (rc)
8719                                 name = "<unknown>";
8720                         mnt = argv[optind];
8721                         rc1 = get_print_quota(mnt, name, qctl, verbose, quiet,
8722                                               human_readable, show_default);
8723                         if (rc1 && !rc)
8724                                 rc = rc1;
8725                 }
8726                 goto out;
8727         /* lfs quota -u username /path/to/lustre/mount */
8728         } else if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8729                    qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8730                 /* options should be followed by u/g-name and mntpoint */
8731                 if ((!show_default && optind + 2 != argc) ||
8732                     (show_default && optind + 1 != argc) ||
8733                     qctl->qc_type == ALLQUOTA) {
8734                         fprintf(stderr,
8735                                 "%s quota: name and mount point must be specified\n",
8736                                 progname);
8737                         rc = CMD_HELP;
8738                         goto out;
8739                 }
8740
8741                 if (!show_default) {
8742                         name = argv[optind++];
8743                         switch (qctl->qc_type) {
8744                         case USRQUOTA:
8745                                 rc = name2uid(&qctl->qc_id, name);
8746                                 break;
8747                         case GRPQUOTA:
8748                                 rc = name2gid(&qctl->qc_id, name);
8749                                 break;
8750                         case PRJQUOTA:
8751                                 rc = name2projid(&qctl->qc_id, name);
8752                                 break;
8753                         default:
8754                                 rc = -ENOTSUP;
8755                                 break;
8756                         }
8757                 } else {
8758                         qctl->qc_valid = QC_GENERAL;
8759                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ?
8760                                         LUSTRE_Q_GETDEFAULT_POOL :
8761                                         LUSTRE_Q_GETDEFAULT;
8762                         qctl->qc_id = 0;
8763                 }
8764
8765                 if (rc) {
8766                         if (str2quotaid(&qctl->qc_id, name)) {
8767                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
8768                                         progname, name);
8769                                 rc = CMD_HELP;
8770                                 goto out;
8771                         }
8772                 }
8773         } else if (optind + 1 != argc || qctl->qc_type == ALLQUOTA) {
8774                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
8775                         progname);
8776                 rc = CMD_HELP;
8777                 goto out;
8778         }
8779
8780         mnt = argv[optind];
8781         if (show_pools) {
8782                 char *p;
8783
8784                 i = 0;
8785                 rc = llapi_get_poolbuf(mnt, &buf, &poollist, &poolcount);
8786                 if (rc)
8787                         goto out;
8788
8789                 for (i = 0; i < poolcount; i++) {
8790                         p = memchr(poollist[i], '.', MAXNAMLEN);
8791                         if (!p) {
8792                                 fprintf(stderr, "bad string format %.*s\n",
8793                                         MAXNAMLEN, poollist[i]);
8794                                 rc = -EINVAL;
8795                                 goto out;
8796                         }
8797                         p++;
8798                         printf("Quotas for pool: %s\n", p);
8799                         strncpy(qctl->qc_poolname, p, LOV_MAXPOOLNAME);
8800                         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8801                                              human_readable, show_default);
8802                         if (rc)
8803                                 break;
8804                 }
8805                 goto out;
8806         }
8807
8808         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8809                              human_readable, show_default);
8810 out:
8811         free(buf);
8812         free(qctl);
8813         return rc;
8814 }
8815 #endif /* HAVE_SYS_QUOTA_H! */
8816
8817 static int flushctx_ioctl(char *mp)
8818 {
8819         int fd, rc;
8820
8821         fd = open(mp, O_RDONLY);
8822         if (fd == -1) {
8823                 fprintf(stderr, "flushctx: error open %s: %s\n",
8824                         mp, strerror(errno));
8825                 return -1;
8826         }
8827
8828         rc = ioctl(fd, LL_IOC_FLUSHCTX);
8829         if (rc == -1)
8830                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
8831                         mp, strerror(errno));
8832
8833         close(fd);
8834         return rc;
8835 }
8836
8837 static int lfs_flushctx(int argc, char **argv)
8838 {
8839         int     kdestroy = 0, reap = 0, c;
8840         char    mntdir[PATH_MAX] = {'\0'};
8841         int     index = 0;
8842         int     rc = 0;
8843
8844         while ((c = getopt(argc, argv, "kr")) != -1) {
8845                 switch (c) {
8846                 case 'k':
8847                         kdestroy = 1;
8848                         break;
8849                 case 'r':
8850                         reap = 1;
8851                         break;
8852                 default:
8853                         fprintf(stderr,
8854                                 "error: %s: option '-%c' unrecognized\n",
8855                                 argv[0], c);
8856                         return CMD_HELP;
8857                 }
8858         }
8859
8860         if (kdestroy) {
8861                 rc = system("kdestroy > /dev/null");
8862                 if (rc) {
8863                         rc = WEXITSTATUS(rc);
8864                         fprintf(stderr,
8865                                 "error destroying tickets: %d, continuing\n",
8866                                 rc);
8867                 }
8868         }
8869
8870         if (optind >= argc) {
8871                 /* flush for all mounted lustre fs. */
8872                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
8873                         /* Check if we have a mount point */
8874                         if (mntdir[0] == '\0')
8875                                 continue;
8876
8877                         if (flushctx_ioctl(mntdir))
8878                                 rc = -1;
8879
8880                         mntdir[0] = '\0'; /* avoid matching in next loop */
8881                 }
8882         } else {
8883                 /* flush fs as specified */
8884                 while (optind < argc) {
8885                         if (flushctx_ioctl(argv[optind++]))
8886                                 rc = -1;
8887                 }
8888         }
8889
8890         if (reap) {
8891                 rc = system("keyctl reap > /dev/null");
8892                 if (rc != 0) {
8893                         rc = WEXITSTATUS(rc);
8894                         fprintf(stderr, "error reaping keyring: %d\n", rc);
8895                 }
8896         }
8897
8898         return rc;
8899 }
8900
8901 static int lfs_changelog(int argc, char **argv)
8902 {
8903         void *changelog_priv;
8904         struct changelog_rec *rec;
8905         long long startrec = 0, endrec = 0;
8906         char *mdd;
8907         struct option long_opts[] = {
8908                 { .val = 'f', .name = "follow", .has_arg = no_argument },
8909                 { .name = NULL } };
8910         char short_opts[] = "f";
8911         int rc, follow = 0;
8912
8913         while ((rc = getopt_long(argc, argv, short_opts,
8914                 long_opts, NULL)) != -1) {
8915                 switch (rc) {
8916                 case 'f':
8917                         follow++;
8918                         break;
8919                 default:
8920                         fprintf(stderr,
8921                                 "%s changelog: unrecognized option '%s'\n",
8922                                 progname, argv[optind - 1]);
8923                         return CMD_HELP;
8924                 }
8925         }
8926         if (optind >= argc) {
8927                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
8928                         progname);
8929                 return CMD_HELP;
8930         }
8931
8932         mdd = argv[optind++];
8933         if (argc > optind) {
8934                 errno = 0;
8935                 startrec = strtoll(argv[optind++], NULL, 10);
8936                 if (errno != 0 || startrec < 0) {
8937                         fprintf(stderr,
8938                                 "%s changelog: bad startrec\n",
8939                                 progname);
8940                         return CMD_HELP;
8941                 }
8942         }
8943
8944         if (argc > optind) {
8945                 errno = 0;
8946                 endrec = strtoll(argv[optind++], NULL, 10);
8947                 if (errno != 0 || endrec < 0) {
8948                         fprintf(stderr,
8949                                 "%s changelog: bad endrec\n",
8950                                 progname);
8951                         return CMD_HELP;
8952                 }
8953         }
8954
8955         rc = llapi_changelog_start(&changelog_priv,
8956                                    CHANGELOG_FLAG_BLOCK |
8957                                    CHANGELOG_FLAG_JOBID |
8958                                    CHANGELOG_FLAG_EXTRA_FLAGS |
8959                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
8960                                    mdd, startrec);
8961         if (rc < 0) {
8962                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
8963                         progname, strerror(errno = -rc));
8964                 return rc;
8965         }
8966
8967         rc = llapi_changelog_set_xflags(changelog_priv,
8968                                         CHANGELOG_EXTRA_FLAG_UIDGID |
8969                                         CHANGELOG_EXTRA_FLAG_NID |
8970                                         CHANGELOG_EXTRA_FLAG_OMODE |
8971                                         CHANGELOG_EXTRA_FLAG_XATTR);
8972         if (rc < 0) {
8973                 fprintf(stderr,
8974                         "%s changelog: cannot set xflags for changelog: %s\n",
8975                         progname, strerror(errno = -rc));
8976                 return rc;
8977         }
8978
8979         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
8980                 time_t secs;
8981                 struct tm ts;
8982
8983                 if (endrec && rec->cr_index > endrec) {
8984                         llapi_changelog_free(&rec);
8985                         break;
8986                 }
8987                 if (rec->cr_index < startrec) {
8988                         llapi_changelog_free(&rec);
8989                         continue;
8990                 }
8991
8992                 secs = rec->cr_time >> 30;
8993                 gmtime_r(&secs, &ts);
8994                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
8995                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
8996                        changelog_type2str(rec->cr_type),
8997                        ts.tm_hour, ts.tm_min, ts.tm_sec,
8998                        (int)(rec->cr_time & ((1 << 30) - 1)),
8999                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
9000                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
9001
9002                 if (rec->cr_flags & CLF_JOBID) {
9003                         struct changelog_ext_jobid *jid =
9004                                 changelog_rec_jobid(rec);
9005
9006                         if (jid->cr_jobid[0] != '\0')
9007                                 printf(" j=%s", jid->cr_jobid);
9008                 }
9009
9010                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
9011                         struct changelog_ext_extra_flags *ef =
9012                                 changelog_rec_extra_flags(rec);
9013
9014                         printf(" ef=0x%llx",
9015                                (unsigned long long)ef->cr_extra_flags);
9016
9017                         if (ef->cr_extra_flags & CLFE_UIDGID) {
9018                                 struct changelog_ext_uidgid *uidgid =
9019                                         changelog_rec_uidgid(rec);
9020
9021                                 printf(" u=%llu:%llu",
9022                                        (unsigned long long)uidgid->cr_uid,
9023                                        (unsigned long long)uidgid->cr_gid);
9024                         }
9025                         if (ef->cr_extra_flags & CLFE_NID) {
9026                                 struct changelog_ext_nid *nid =
9027                                         changelog_rec_nid(rec);
9028
9029                                 printf(" nid=%s",
9030                                        libcfs_nid2str(nid->cr_nid));
9031                         }
9032
9033                         if (ef->cr_extra_flags & CLFE_OPEN) {
9034                                 struct changelog_ext_openmode *omd =
9035                                         changelog_rec_openmode(rec);
9036                                 char mode[] = "---";
9037
9038                                 /* exec mode must be exclusive */
9039                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
9040                                         mode[2] = 'x';
9041                                 } else {
9042                                         if (omd->cr_openflags & MDS_FMODE_READ)
9043                                                 mode[0] = 'r';
9044                                         if (omd->cr_openflags &
9045                                             (MDS_FMODE_WRITE |
9046                                              MDS_OPEN_TRUNC |
9047                                              MDS_OPEN_APPEND))
9048                                                 mode[1] = 'w';
9049                                 }
9050
9051                                 if (strcmp(mode, "---") != 0)
9052                                         printf(" m=%s", mode);
9053                         }
9054
9055                         if (ef->cr_extra_flags & CLFE_XATTR) {
9056                                 struct changelog_ext_xattr *xattr =
9057                                         changelog_rec_xattr(rec);
9058
9059                                 if (xattr->cr_xattr[0] != '\0')
9060                                         printf(" x=%s", xattr->cr_xattr);
9061                         }
9062                 }
9063
9064                 if (!fid_is_zero(&rec->cr_pfid))
9065                         printf(" p="DFID, PFID(&rec->cr_pfid));
9066                 if (rec->cr_namelen)
9067                         printf(" %.*s", rec->cr_namelen,
9068                                changelog_rec_name(rec));
9069
9070                 if (rec->cr_flags & CLF_RENAME) {
9071                         struct changelog_ext_rename *rnm =
9072                                 changelog_rec_rename(rec);
9073
9074                         if (!fid_is_zero(&rnm->cr_sfid))
9075                                 printf(" s="DFID" sp="DFID" %.*s",
9076                                        PFID(&rnm->cr_sfid),
9077                                        PFID(&rnm->cr_spfid),
9078                                        (int)changelog_rec_snamelen(rec),
9079                                        changelog_rec_sname(rec));
9080                 }
9081                 printf("\n");
9082
9083                 llapi_changelog_free(&rec);
9084         }
9085
9086         llapi_changelog_fini(&changelog_priv);
9087
9088         if (rc < 0)
9089                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
9090                         progname, strerror(errno = -rc));
9091
9092         return (rc == 1 ? 0 : rc);
9093 }
9094
9095 static int lfs_changelog_clear(int argc, char **argv)
9096 {
9097         long long endrec;
9098         int rc;
9099
9100         if (argc != 4)
9101                 return CMD_HELP;
9102
9103         errno = 0;
9104         endrec = strtoll(argv[3], NULL, 10);
9105         if (errno != 0 || endrec < 0) {
9106                 fprintf(stderr,
9107                         "%s: bad endrec '%s'\n",
9108                         argv[0], argv[3]);
9109                 return CMD_HELP;
9110         }
9111
9112         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
9113
9114         if (rc == -EINVAL)
9115                 fprintf(stderr, "%s: record out of range: %llu\n",
9116                         argv[0], endrec);
9117         else if (rc == -ENOENT)
9118                 fprintf(stderr, "%s: no changelog user: %s\n",
9119                         argv[0], argv[2]);
9120         else if (rc)
9121                 fprintf(stderr, "%s error: %s\n", argv[0],
9122                         strerror(-rc));
9123
9124         if (rc)
9125                 errno = -rc;
9126
9127         return rc;
9128 }
9129
9130 static void rstripc(char *str, int c)
9131 {
9132         char *end = str + strlen(str);
9133
9134         for (; str < end && end[-1] == c; --end)
9135                 end[-1] = '\0';
9136 }
9137
9138 static int lfs_fid2path(int argc, char **argv)
9139 {
9140         struct option long_opts[] = {
9141                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
9142                 { .val = 'c',   .name = "current",      .has_arg = no_argument },
9143                 { .val = 'c',   .name = "print-link",   .has_arg = no_argument },
9144                 { .val = 'f',   .name = "print-fid",    .has_arg = no_argument },
9145                 { .val = 'l',   .name = "link", .has_arg = required_argument },
9146                 { .name = NULL } };
9147         char short_opts[] = "cfl:pr:";
9148         bool print_link = false;
9149         bool print_fid = false;
9150         bool print_mnt_dir;
9151         char mnt_dir[PATH_MAX] = "";
9152         int mnt_fd = -1;
9153         char *path_or_fsname;
9154         long long recno = -1;
9155         int linkno = -1;
9156         char *endptr = NULL;
9157         int rc = 0;
9158         int c;
9159         int i;
9160
9161         while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
9162                 switch (c) {
9163                 case 'c':
9164                         print_link = true;
9165                         break;
9166                 case 'f':
9167                         print_fid = true;
9168                         break;
9169                 case 'l':
9170                         errno = 0;
9171                         linkno = strtol(optarg, &endptr, 10);
9172                         if (errno != 0 || *endptr != '\0' || linkno < 0) {
9173                                 fprintf(stderr,
9174                                         "%s fid2path: invalid linkno '%s'\n",
9175                                         progname, optarg);
9176                                 return CMD_HELP;
9177                         }
9178                         break;
9179                 case 'r':
9180                         /* recno is something to do with changelogs
9181                          * that was never implemented. We just pass it
9182                          * through for the MDT to ignore.
9183                          */
9184                         errno = 0;
9185                         recno = strtoll(optarg, &endptr, 10);
9186                         if (errno != 0 || *endptr != '\0' || recno < 0) {
9187                                 fprintf(stderr,
9188                                         "%s fid2path: invalid recno '%s'\n",
9189                                         progname, optarg);
9190                                 return CMD_HELP;
9191                         }
9192                         break;
9193                 default:
9194                         fprintf(stderr,
9195                                 "%s fid2path: unrecognized option '%s'\n",
9196                                 progname, argv[optind - 1]);
9197                         return CMD_HELP;
9198                 }
9199         }
9200
9201         if (argc - optind < 2) {
9202                 fprintf(stderr,
9203                         "Usage: %s fid2path FSNAME|ROOT FID...\n",
9204                         progname);
9205                 return CMD_HELP;
9206         }
9207
9208         path_or_fsname = argv[optind];
9209
9210         if (*path_or_fsname == '/') {
9211                 print_mnt_dir = true;
9212                 rc = llapi_search_mounts(path_or_fsname, 0, mnt_dir, NULL);
9213         } else {
9214                 print_mnt_dir = false;
9215                 rc = llapi_search_rootpath(mnt_dir, path_or_fsname);
9216         }
9217
9218         if (rc < 0) {
9219                 fprintf(stderr,
9220                         "%s fid2path: cannot resolve mount point for '%s': %s\n",
9221                         progname, path_or_fsname, strerror(-rc));
9222                 goto out;
9223         }
9224
9225         mnt_fd = open(mnt_dir, O_RDONLY | O_DIRECTORY);
9226         if (mnt_fd < 0) {
9227                 fprintf(stderr,
9228                         "%s fid2path: cannot open mount point for '%s': %s\n",
9229                         progname, path_or_fsname, strerror(-rc));
9230                 goto out;
9231         }
9232
9233         /* Strip trailing slashes from mnt_dir. */
9234         rstripc(mnt_dir + 1, '/');
9235
9236         for (i = optind + 1; i < argc; i++) {
9237                 const char *fid_str = argv[i];
9238                 struct lu_fid fid;
9239                 int rc2;
9240
9241                 rc2 = llapi_fid_parse(fid_str, &fid, NULL);
9242                 if (rc2 < 0) {
9243                         fprintf(stderr,
9244                                 "%s fid2path: invalid FID '%s'\n",
9245                                 progname, fid_str);
9246                         if (rc == 0)
9247                                 rc = rc2;
9248
9249                         continue;
9250                 }
9251
9252                 int linktmp = (linkno >= 0) ? linkno : 0;
9253                 while (1) {
9254                         int oldtmp = linktmp;
9255                         long long rectmp = recno;
9256                         char path_buf[PATH_MAX];
9257
9258                         rc2 = llapi_fid2path_at(mnt_fd, &fid,
9259                                 path_buf, sizeof(path_buf), &rectmp, &linktmp);
9260                         if (rc2 < 0) {
9261                                 fprintf(stderr,
9262                                         "%s fid2path: cannot find %s %s: %s\n",
9263                                         progname, path_or_fsname, fid_str,
9264                                         strerror(-rc2));
9265                                 if (rc == 0)
9266                                         rc = rc2;
9267                                 break;
9268                         }
9269
9270                         if (print_fid)
9271                                 printf("%s ", fid_str);
9272
9273                         if (print_link)
9274                                 printf("%d ", linktmp);
9275
9276                         /* You may think this looks wrong or weird (and it is!)
9277                          * but we are actually trying to preserve the old quirky
9278                          * behaviors (enforced by our old quirky tests!) that
9279                          * make lfs so much fun to work on:
9280                          *
9281                          *   lustre 0x200000007:0x1:0x0 => "/"
9282                          *   /mnt/lustre 0x200000007:0x1:0x0 => "/mnt/lustre//"
9283                          *
9284                          * Note that llapi_fid2path() returns "" for the root
9285                          * FID. */
9286
9287                         printf("%s%s%s\n",
9288                                print_mnt_dir ? mnt_dir : "",
9289                                (print_mnt_dir || *path_buf == '\0') ? "/" : "",
9290                                path_buf);
9291
9292                         if (linkno >= 0)
9293                                 /* specified linkno */
9294                                 break;
9295
9296                         if (oldtmp == linktmp)
9297                                 /* no more links */
9298                                 break;
9299                 }
9300         }
9301 out:
9302         if (!(mnt_fd < 0))
9303                 close(mnt_fd);
9304
9305         return rc;
9306 }
9307
9308 static int lfs_path2fid(int argc, char **argv)
9309 {
9310         struct option long_opts[] = {
9311                 { .val = 'p', .name = "parents", .has_arg = no_argument },
9312                 { .name = NULL } };
9313         char            **path;
9314         const char        short_opts[] = "p";
9315         const char       *sep = "";
9316         struct lu_fid     fid;
9317         int               rc = 0;
9318         bool              show_parents = false;
9319
9320         while ((rc = getopt_long(argc, argv, short_opts,
9321                                  long_opts, NULL)) != -1) {
9322                 switch (rc) {
9323                 case 'p':
9324                         show_parents = true;
9325                         break;
9326                 default:
9327                         fprintf(stderr,
9328                                 "%s path2fid: unrecognized option '%s'\n",
9329                                 progname, argv[optind - 1]);
9330                         return CMD_HELP;
9331                 }
9332         }
9333
9334         if (optind > argc - 1) {
9335                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
9336                         progname);
9337                 return CMD_HELP;
9338         } else if (optind < argc - 1) {
9339                 sep = ": ";
9340         }
9341
9342         rc = 0;
9343         for (path = argv + optind; *path != NULL; path++) {
9344                 int err = 0;
9345
9346                 if (!show_parents) {
9347                         err = llapi_path2fid(*path, &fid);
9348                         if (!err)
9349                                 printf("%s%s"DFID"\n",
9350                                        *sep != '\0' ? *path : "", sep,
9351                                        PFID(&fid));
9352                 } else {
9353                         char            name[NAME_MAX + 1];
9354                         unsigned int    linkno = 0;
9355
9356                         while ((err = llapi_path2parent(*path, linkno, &fid,
9357                                                 name, sizeof(name))) == 0) {
9358                                 if (*sep != '\0' && linkno == 0)
9359                                         printf("%s%s", *path, sep);
9360
9361                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
9362                                        PFID(&fid), name);
9363                                 linkno++;
9364                         }
9365
9366                         /* err == -ENODATA is end-of-loop */
9367                         if (linkno > 0 && err == -ENODATA) {
9368                                 printf("\n");
9369                                 err = 0;
9370                         }
9371                 }
9372
9373                 if (err) {
9374                         fprintf(stderr,
9375                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
9376                                 progname, show_parents ? "parent " : "", *path,
9377                                 strerror(-err));
9378                         if (rc == 0) {
9379                                 rc = err;
9380                                 errno = -err;
9381                         }
9382                 }
9383         }
9384
9385         return rc;
9386 }
9387
9388 #define MAX_ERRNO       4095
9389 #define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
9390
9391 static int lfs_rmfid_and_show_errors(const char *device, struct fid_array *fa)
9392 {
9393         int rc, rc2, k;
9394
9395         rc = llapi_rmfid(device, fa);
9396         if (rc < 0) {
9397                 fprintf(stderr, "%s rmfid: cannot remove FIDs: %s\n",
9398                         progname, strerror(-rc));
9399                 return rc;
9400         }
9401
9402         for (k = 0; k < fa->fa_nr; k++) {
9403                 rc2 = (__s32)fa->fa_fids[k].f_ver;
9404                 if (!IS_ERR_VALUE(rc2))
9405                         continue;
9406
9407                 if (rc == 0)
9408                         rc = rc2;
9409
9410                 fa->fa_fids[k].f_ver = 0;
9411                 fprintf(stderr, "%s rmfid: cannot remove "DFID": %s\n",
9412                         progname, PFID(&fa->fa_fids[k]), strerror(-rc2));
9413         }
9414
9415         return rc;
9416 }
9417
9418 static int lfs_rmfid(int argc, char **argv)
9419 {
9420         char *fidstr, *device;
9421         int rc = 0, rc2, nr;
9422         struct fid_array *fa;
9423
9424         if (optind > argc - 1) {
9425                 fprintf(stderr, "%s rmfid: missing dirname\n", progname);
9426                 return CMD_HELP;
9427         }
9428
9429         device = argv[optind++];
9430
9431         nr = argc - optind;
9432         fa = malloc(offsetof(struct fid_array, fa_fids[nr + 1]));
9433         if (!fa)
9434                 return -ENOMEM;
9435
9436         fa->fa_nr = 0;
9437         rc = 0;
9438         while (optind < argc) {
9439                 int found;
9440
9441                 fidstr = argv[optind++];
9442                 while (*fidstr == '[')
9443                         fidstr++;
9444                 found = sscanf(fidstr, SFID, RFID(&fa->fa_fids[fa->fa_nr]));
9445                 if (found != 3) {
9446                         fprintf(stderr, "unrecognized FID: %s\n",
9447                                 argv[optind - 1]);
9448                         exit(1);
9449                 }
9450                 fa->fa_nr++;
9451                 if (fa->fa_nr == OBD_MAX_FIDS_IN_ARRAY) {
9452                         /* start another batch */
9453                         rc2 = lfs_rmfid_and_show_errors(device, fa);
9454                         if (rc2 && !rc)
9455                                 rc = rc2;
9456                         fa->fa_nr = 0;
9457                 }
9458         }
9459         if (fa->fa_nr) {
9460                 rc2 = lfs_rmfid_and_show_errors(device, fa);
9461                 if (rc2 && !rc)
9462                         rc = rc2;
9463         }
9464
9465         return rc;
9466 }
9467
9468 static int lfs_data_version(int argc, char **argv)
9469 {
9470         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
9471         __u64 data_version;
9472         char *path;
9473         int fd;
9474         int rc;
9475         int c;
9476
9477         if (argc < 2) {
9478                 fprintf(stderr, "%s: FILE must be specified\n",
9479                         progname);
9480                 return CMD_HELP;
9481         }
9482
9483         while ((c = getopt(argc, argv, "hnrw")) != -1) {
9484                 switch (c) {
9485                 case 'n':
9486                         data_version_flags = 0;
9487                         break;
9488                 case 'r':
9489                         data_version_flags |= LL_DV_RD_FLUSH;
9490                         break;
9491                 case 'w':
9492                         data_version_flags |= LL_DV_WR_FLUSH;
9493                         break;
9494                 default:
9495                         fprintf(stderr,
9496                                 "%s data_version: unrecognized option '%s'\n",
9497                                 progname, argv[optind - 1]);
9498                         fallthrough;
9499                 case 'h':
9500                         return CMD_HELP;
9501                 }
9502         }
9503         if (optind == argc) {
9504                 fprintf(stderr, "%s data_version: FILE must be specified\n",
9505                         progname);
9506                 return CMD_HELP;
9507         }
9508
9509         path = argv[optind];
9510         fd = open(path, O_RDONLY);
9511         if (fd < 0) {
9512                 rc = -errno;
9513                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
9514                         progname, path, strerror(-rc));
9515                 return rc;
9516         }
9517
9518         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
9519         if (rc < 0)
9520                 fprintf(stderr,
9521                         "%s data_version: cannot get version for '%s': %s\n",
9522                         progname, path, strerror(-rc));
9523         else
9524                 printf("%ju" "\n", (uintmax_t)data_version);
9525
9526         close(fd);
9527         return rc;
9528 }
9529
9530 static int lfs_hsm_state(int argc, char **argv)
9531 {
9532         int rc;
9533         int i = 1;
9534         char *path;
9535         struct hsm_user_state hus;
9536
9537         if (argc < 2)
9538                 return CMD_HELP;
9539
9540         do {
9541                 path = argv[i];
9542
9543                 rc = llapi_hsm_state_get(path, &hus);
9544                 if (rc) {
9545                         fprintf(stderr, "can't get hsm state for %s: %s\n",
9546                                 path, strerror(errno = -rc));
9547                         return rc;
9548                 }
9549
9550                 /* Display path name and status flags */
9551                 printf("%s: (0x%08x)", path, hus.hus_states);
9552
9553                 if (hus.hus_states & HS_RELEASED)
9554                         printf(" released");
9555                 if (hus.hus_states & HS_EXISTS)
9556                         printf(" exists");
9557                 if (hus.hus_states & HS_DIRTY)
9558                         printf(" dirty");
9559                 if (hus.hus_states & HS_ARCHIVED)
9560                         printf(" archived");
9561                 /* Display user-settable flags */
9562                 if (hus.hus_states & HS_NORELEASE)
9563                         printf(" never_release");
9564                 if (hus.hus_states & HS_NOARCHIVE)
9565                         printf(" never_archive");
9566                 if (hus.hus_states & HS_LOST)
9567                         printf(" lost_from_hsm");
9568
9569                 if (hus.hus_archive_id != 0)
9570                         printf(", archive_id:%d", hus.hus_archive_id);
9571                 printf("\n");
9572
9573         } while (++i < argc);
9574
9575         return 0;
9576 }
9577
9578 #define LFS_HSM_SET   0
9579 #define LFS_HSM_CLEAR 1
9580
9581 /**
9582  * Generic function to set or clear HSM flags.
9583  * Used by hsm_set and hsm_clear.
9584  *
9585  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
9586  */
9587 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
9588 {
9589         struct option long_opts[] = {
9590         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
9591         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
9592         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
9593         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
9594         { .val = 'h',   .name = "help",         .has_arg = no_argument },
9595         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
9596         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
9597         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
9598         { .name = NULL } };
9599         __u64 mask = 0;
9600         int c, rc;
9601         char *path;
9602         __u32 archive_id = 0;
9603         char *end = NULL;
9604
9605         if (argc < 3)
9606                 return CMD_HELP;
9607
9608         while ((c = getopt_long(argc, argv, "aAdehi:lr",
9609                                 long_opts, NULL)) != -1) {
9610                 switch (c) {
9611                 case 'l':
9612                         mask |= HS_LOST;
9613                         break;
9614                 case 'a':
9615                         mask |= HS_NOARCHIVE;
9616                         break;
9617                 case 'A':
9618                         mask |= HS_ARCHIVED;
9619                         break;
9620                 case 'r':
9621                         mask |= HS_NORELEASE;
9622                         break;
9623                 case 'd':
9624                         mask |= HS_DIRTY;
9625                         break;
9626                 case 'e':
9627                         mask |= HS_EXISTS;
9628                         break;
9629                 case 'i':
9630                         errno = 0;
9631                         archive_id = strtol(optarg, &end, 10);
9632                         if (errno != 0 || *end != '\0' || archive_id < 0) {
9633                                 fprintf(stderr,
9634                                         "%s: invalid archive_id: '%s'\n",
9635                                         progname, end);
9636                                 return CMD_HELP;
9637                         }
9638                         break;
9639                 default:
9640                         fprintf(stderr, "%s: unrecognized option '%s'\n",
9641                                 progname, argv[optind - 1]);
9642                         fallthrough;
9643                 case 'h':
9644                         return CMD_HELP;
9645                 }
9646         }
9647
9648         /* User should have specified a flag */
9649         if (mask == 0)
9650                 return CMD_HELP;
9651
9652         while (optind < argc) {
9653                 path = argv[optind];
9654
9655                 /* If mode == 0, this means we apply the mask. */
9656                 if (mode == LFS_HSM_SET)
9657                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
9658                 else
9659                         rc = llapi_hsm_state_set(path, 0, mask, 0);
9660
9661                 if (rc != 0) {
9662                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
9663                                 path, strerror(errno = -rc));
9664                         return rc;
9665                 }
9666                 optind++;
9667         }
9668
9669         return 0;
9670 }
9671
9672 static int lfs_hsm_action(int argc, char **argv)
9673 {
9674         int                              rc;
9675         int                              i = 1;
9676         char                            *path;
9677         struct hsm_current_action        hca;
9678         struct hsm_extent                he;
9679         enum hsm_user_action             hua;
9680         enum hsm_progress_states         hps;
9681
9682         if (argc < 2)
9683                 return CMD_HELP;
9684
9685         do {
9686                 path = argv[i];
9687
9688                 rc = llapi_hsm_current_action(path, &hca);
9689                 if (rc) {
9690                         fprintf(stderr, "can't get hsm action for %s: %s\n",
9691                                 path, strerror(errno = -rc));
9692                         return rc;
9693                 }
9694                 he = hca.hca_location;
9695                 hua = hca.hca_action;
9696                 hps = hca.hca_state;
9697
9698                 printf("%s: %s", path, hsm_user_action2name(hua));
9699
9700                 /* Skip file without action */
9701                 if (hca.hca_action == HUA_NONE) {
9702                         printf("\n");
9703                         continue;
9704                 }
9705
9706                 printf(" %s ", hsm_progress_state2name(hps));
9707
9708                 if ((hps == HPS_RUNNING) &&
9709                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
9710                         printf("(%llu bytes moved)\n",
9711                                (unsigned long long)he.length);
9712                 else if ((he.offset + he.length) == LUSTRE_EOF)
9713                         printf("(from %llu to EOF)\n",
9714                                (unsigned long long)he.offset);
9715                 else
9716                         printf("(from %llu to %llu)\n",
9717                                (unsigned long long)he.offset,
9718                                (unsigned long long)(he.offset + he.length));
9719
9720         } while (++i < argc);
9721
9722         return 0;
9723 }
9724
9725 static int lfs_hsm_set(int argc, char **argv)
9726 {
9727         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
9728 }
9729
9730 static int lfs_hsm_clear(int argc, char **argv)
9731 {
9732         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
9733 }
9734
9735 /**
9736  * Check file state and return its fid, to be used by lfs_hsm_request().
9737  *
9738  * \param[in]     file      Path to file to check
9739  * \param[in,out] fid       Pointer to allocated lu_fid struct.
9740  * \param[in,out] last_dev  Pointer to last device id used.
9741  *
9742  * \return 0 on success.
9743  */
9744 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
9745                                 dev_t *last_dev)
9746 {
9747         struct stat     st;
9748         int             rc;
9749
9750         rc = lstat(file, &st);
9751         if (rc) {
9752                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
9753                 return -errno;
9754         }
9755         /*
9756          * Checking for regular file as archiving as posix copytool
9757          * rejects archiving files other than regular files
9758          */
9759         if (!S_ISREG(st.st_mode)) {
9760                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
9761                 return CMD_HELP;
9762         }
9763         /* A request should be ... */
9764         if (*last_dev != st.st_dev && *last_dev != 0) {
9765                 fprintf(stderr,
9766                         "All files should be on the same filesystem: %s\n",
9767                         file);
9768                 return -EINVAL;
9769         }
9770         *last_dev = st.st_dev;
9771
9772         rc = llapi_path2fid(file, fid);
9773         if (rc) {
9774                 fprintf(stderr, "Cannot read FID of %s: %s\n",
9775                         file, strerror(-rc));
9776                 return rc;
9777         }
9778         return 0;
9779 }
9780
9781 /* Fill an HSM HUR item with a given file name.
9782  *
9783  * If mntpath is set, then the filename is actually a FID, and no
9784  * lookup on the filesystem will be performed.
9785  *
9786  * \param[in]  hur         the user request to fill
9787  * \param[in]  idx         index of the item inside the HUR to fill
9788  * \param[in]  mntpath     mountpoint of Lustre
9789  * \param[in]  fname       filename (if mtnpath is NULL)
9790  *                         or FID (if mntpath is set)
9791  * \param[in]  last_dev    pointer to last device id used
9792  *
9793  * \retval 0 on success
9794  * \retval CMD_HELP or a negative errno on error
9795  */
9796 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
9797                          const char *mntpath, const char *fname,
9798                          dev_t *last_dev)
9799 {
9800         struct hsm_user_item *hui = &hur->hur_user_item[idx];
9801         int rc;
9802
9803         hui->hui_extent.length = -1;
9804
9805         if (mntpath) {
9806                 rc = llapi_fid_parse(fname, &hui->hui_fid, NULL);
9807                 if (rc)
9808                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
9809                                 fname);
9810         } else {
9811                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
9812         }
9813
9814         if (rc == 0)
9815                 hur->hur_request.hr_itemcount++;
9816
9817         return rc;
9818 }
9819
9820 static int lfs_hsm_request(int argc, char **argv, int action)
9821 {
9822         struct option long_opts[] = {
9823         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
9824         { .val = 'D',   .name = "data",         .has_arg = required_argument },
9825         { .val = 'h',   .name = "help",         .has_arg = no_argument },
9826         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
9827         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
9828         { .name = NULL } };
9829         dev_t last_dev = 0;
9830         struct hsm_user_request *hur, *oldhur;
9831         int c, i;
9832         size_t len;
9833         int nbfile;
9834         char *line = NULL;
9835         char *filelist = NULL;
9836         char fullpath[PATH_MAX];
9837         char *opaque = NULL;
9838         int opaque_len = 0;
9839         int archive_id = 0;
9840         FILE *fp;
9841         int nbfile_alloc = 0;
9842         char *some_file = NULL;
9843         char *mntpath = NULL;
9844         int rc;
9845
9846         if (argc < 2)
9847                 return CMD_HELP;
9848
9849         while ((c = getopt_long(argc, argv, "a:D:hl:m:",
9850                                 long_opts, NULL)) != -1) {
9851                 switch (c) {
9852                 case 'l':
9853                         filelist = optarg;
9854                         break;
9855                 case 'D':
9856                         opaque = optarg;
9857                         break;
9858                 case 'a':
9859                         if (action != HUA_ARCHIVE &&
9860                             action != HUA_REMOVE) {
9861                                 fprintf(stderr,
9862                                         "error: -a is supported only when archiving or removing\n");
9863                                 return CMD_HELP;
9864                         }
9865                         archive_id = atoi(optarg);
9866                         break;
9867                 case 'm':
9868                         if (!some_file) {
9869                                 mntpath = optarg;
9870                                 some_file = strdup(optarg);
9871                         }
9872                         break;
9873                 default:
9874                         fprintf(stderr, "%s: unrecognized option '%s'\n",
9875                                 progname, argv[optind - 1]);
9876                         fallthrough;
9877                 case 'h':
9878                         return CMD_HELP;
9879                 }
9880         }
9881
9882         /* All remaining args are files, so we have at least nbfile */
9883         nbfile = argc - optind;
9884
9885         if ((nbfile == 0) && (!filelist))
9886                 return CMD_HELP;
9887
9888         if (opaque)
9889                 opaque_len = strlen(opaque);
9890
9891         /*
9892          * Alloc the request structure with enough place to store all files
9893          * from command line.
9894          */
9895         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
9896         if (!hur) {
9897                 fprintf(stderr, "Cannot create the request: %s\n",
9898                         strerror(errno));
9899                 return errno;
9900         }
9901         nbfile_alloc = nbfile;
9902
9903         hur->hur_request.hr_action = action;
9904         hur->hur_request.hr_archive_id = archive_id;
9905         hur->hur_request.hr_flags = 0;
9906
9907         /* All remaining args are files, add them */
9908         if (nbfile != 0 && some_file == NULL)
9909                 some_file = strdup(argv[optind]);
9910
9911         for (i = 0; i < nbfile; i++) {
9912                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
9913                                    &last_dev);
9914                 if (rc)
9915                         goto out_free;
9916         }
9917
9918         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
9919
9920         /* If a filelist was specified, read the filelist from it. */
9921         if (filelist) {
9922                 fp = fopen(filelist, "r");
9923                 if (!fp) {
9924                         fprintf(stderr, "Cannot read the file list %s: %s\n",
9925                                 filelist, strerror(errno));
9926                         rc = -errno;
9927                         goto out_free;
9928                 }
9929
9930                 while ((rc = getline(&line, &len, fp)) != -1) {
9931                         /*
9932                          * If allocated buffer was too small, get something
9933                          * larger
9934                          */
9935                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
9936                                 ssize_t size;
9937
9938                                 nbfile_alloc = nbfile_alloc * 2 + 1;
9939                                 oldhur = hur;
9940                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
9941                                                                    opaque_len);
9942                                 if (!hur) {
9943                                         fprintf(stderr,
9944                                                 "hsm: cannot allocate the request: %s\n",
9945                                                 strerror(errno));
9946                                         hur = oldhur;
9947                                         rc = -errno;
9948                                         fclose(fp);
9949                                         goto out_free;
9950                                 }
9951                                 size = hur_len(oldhur);
9952                                 if (size < 0) {
9953                                         fprintf(stderr,
9954                                                 "hsm: cannot allocate %u files + %u bytes data\n",
9955                                                 oldhur->hur_request.hr_itemcount,
9956                                                 oldhur->hur_request.hr_data_len);
9957                                         free(hur);
9958                                         hur = oldhur;
9959                                         rc = -E2BIG;
9960                                         fclose(fp);
9961                                         goto out_free;
9962                                 }
9963                                 memcpy(hur, oldhur, size);
9964                                 free(oldhur);
9965                         }
9966
9967                         /* Chop CR */
9968                         if (line[strlen(line) - 1] == '\n')
9969                                 line[strlen(line) - 1] = '\0';
9970
9971                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
9972                                            mntpath, line, &last_dev);
9973                         if (rc) {
9974                                 fclose(fp);
9975                                 goto out_free;
9976                         }
9977
9978                         if (!some_file) {
9979                                 some_file = line;
9980                                 line = NULL;
9981                         }
9982                 }
9983
9984                 rc = fclose(fp);
9985                 free(line);
9986         }
9987
9988         /* If a --data was used, add it to the request */
9989         hur->hur_request.hr_data_len = opaque_len;
9990         if (opaque)
9991                 memcpy(hur_data(hur), opaque, opaque_len);
9992
9993         /* Send the HSM request */
9994         if (realpath(some_file, fullpath) == NULL) {
9995                 fprintf(stderr, "Could not find path '%s': %s\n",
9996                         some_file, strerror(errno));
9997         }
9998         rc = llapi_hsm_request(fullpath, hur);
9999         if (rc) {
10000                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
10001                         some_file, strerror(-rc));
10002                 goto out_free;
10003         }
10004
10005 out_free:
10006         free(some_file);
10007         free(hur);
10008         return rc;
10009 }
10010
10011 static int lfs_hsm_archive(int argc, char **argv)
10012 {
10013         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
10014 }
10015
10016 static int lfs_hsm_restore(int argc, char **argv)
10017 {
10018         return lfs_hsm_request(argc, argv, HUA_RESTORE);
10019 }
10020
10021 static int lfs_hsm_release(int argc, char **argv)
10022 {
10023         return lfs_hsm_request(argc, argv, HUA_RELEASE);
10024 }
10025
10026 static int lfs_hsm_remove(int argc, char **argv)
10027 {
10028         return lfs_hsm_request(argc, argv, HUA_REMOVE);
10029 }
10030
10031 static int lfs_hsm_cancel(int argc, char **argv)
10032 {
10033         return lfs_hsm_request(argc, argv, HUA_CANCEL);
10034 }
10035
10036 static int lfs_swap_layouts(int argc, char **argv)
10037 {
10038         if (argc != 3)
10039                 return CMD_HELP;
10040
10041         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
10042                                   SWAP_LAYOUTS_KEEP_MTIME |
10043                                   SWAP_LAYOUTS_KEEP_ATIME);
10044 }
10045
10046 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
10047
10048 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
10049
10050 int lfs_get_mode(const char *string)
10051 {
10052         enum lock_mode_user mode;
10053
10054         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
10055                 if (lock_mode_names[mode] == NULL)
10056                         continue;
10057                 if (strcasecmp(string, lock_mode_names[mode]) == 0)
10058                         return mode;
10059         }
10060
10061         return -EINVAL;
10062 }
10063
10064 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
10065 {
10066         enum lu_ladvise_type advice;
10067
10068         for (advice = 0;
10069              advice < ARRAY_SIZE(ladvise_names); advice++) {
10070                 if (ladvise_names[advice] == NULL)
10071                         continue;
10072                 if (strcmp(string, ladvise_names[advice]) == 0)
10073                         return advice;
10074         }
10075
10076         return LU_LADVISE_INVALID;
10077 }
10078
10079 static int lfs_ladvise(int argc, char **argv)
10080 {
10081         struct option long_opts[] = {
10082         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
10083         { .val = 'b',   .name = "background",   .has_arg = no_argument },
10084         { .val = 'e',   .name = "end",          .has_arg = required_argument },
10085         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10086         { .val = 'l',   .name = "length",       .has_arg = required_argument },
10087         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
10088         { .val = 's',   .name = "start",        .has_arg = required_argument },
10089         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
10090         { .name = NULL } };
10091         struct llapi_lu_ladvise advice;
10092         enum lu_ladvise_type advice_type = LU_LADVISE_INVALID;
10093         unsigned long long start = 0;
10094         unsigned long long end = LUSTRE_EOF;
10095         unsigned long long length = 0;
10096         unsigned long long size_units;
10097         unsigned long long flags = 0;
10098         int c, fd, rc = 0;
10099         const char *path;
10100         int mode = 0;
10101
10102         optind = 0;
10103         while ((c = getopt_long(argc, argv, "a:be:hl:m:s:u",
10104                                 long_opts, NULL)) != -1) {
10105                 switch (c) {
10106                 case 'a':
10107                         advice_type = lfs_get_ladvice(optarg);
10108                         if (advice_type == LU_LADVISE_INVALID) {
10109                                 fprintf(stderr,
10110                                         "%s: invalid advice type '%s'\n",
10111                                         progname, optarg);
10112                                 fprintf(stderr, "Valid types:");
10113
10114                                 for (advice_type = 0;
10115                                      advice_type < ARRAY_SIZE(ladvise_names);
10116                                      advice_type++) {
10117                                         if (ladvise_names[advice_type] == NULL)
10118                                                 continue;
10119                                         fprintf(stderr, " %s",
10120                                                 ladvise_names[advice_type]);
10121                                 }
10122                                 fprintf(stderr, "\n");
10123
10124                                 return CMD_HELP;
10125                         }
10126                         break;
10127                 case 'b':
10128                         flags |= LF_ASYNC;
10129                         break;
10130                 case 'u':
10131                         flags |= LF_UNSET;
10132                         break;
10133                 case 'e':
10134                         size_units = 1;
10135                         rc = llapi_parse_size(optarg, &end,
10136                                               &size_units, 0);
10137                         if (rc) {
10138                                 fprintf(stderr, "%s: bad end offset '%s'\n",
10139                                         argv[0], optarg);
10140                                 return CMD_HELP;
10141                         }
10142                         break;
10143                 case 's':
10144                         size_units = 1;
10145                         rc = llapi_parse_size(optarg, &start,
10146                                               &size_units, 0);
10147                         if (rc) {
10148                                 fprintf(stderr,
10149                                         "%s: bad start offset '%s'\n",
10150                                         argv[0], optarg);
10151                                 return CMD_HELP;
10152                         }
10153                         break;
10154                 case 'l':
10155                         size_units = 1;
10156                         rc = llapi_parse_size(optarg, &length,
10157                                               &size_units, 0);
10158                         if (rc) {
10159                                 fprintf(stderr, "%s: bad length '%s'\n",
10160                                         argv[0], optarg);
10161                                 return CMD_HELP;
10162                         }
10163                         break;
10164                 case 'm':
10165                         mode = lfs_get_mode(optarg);
10166                         if (mode < 0) {
10167                                 fprintf(stderr,
10168                                         "%s: bad mode '%s', valid modes are READ or WRITE\n",
10169                                         argv[0], optarg);
10170                                 return CMD_HELP;
10171                         }
10172                         break;
10173                 default:
10174                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10175                                 progname, argv[optind - 1]);
10176                         fallthrough;
10177                 case 'h':
10178                         return CMD_HELP;
10179                 }
10180         }
10181
10182         if (advice_type == LU_LADVISE_INVALID) {
10183                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
10184                 fprintf(stderr, "Valid types:");
10185                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
10186                      advice_type++) {
10187                         if (ladvise_names[advice_type] == NULL)
10188                                 continue;
10189                         fprintf(stderr, " %s", ladvise_names[advice_type]);
10190                 }
10191                 fprintf(stderr, "\n");
10192                 return CMD_HELP;
10193         }
10194
10195         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
10196                 fprintf(stderr,
10197                         "%s: Lock no expand advice is a per file descriptor advice, so when called from lfs, it does nothing.\n",
10198                         argv[0]);
10199                 return CMD_HELP;
10200         }
10201
10202         if (argc <= optind) {
10203                 fprintf(stderr, "%s: please give one or more file names\n",
10204                         argv[0]);
10205                 return CMD_HELP;
10206         }
10207
10208         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
10209                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
10210                         argv[0]);
10211                 return CMD_HELP;
10212         }
10213
10214         if (end == LUSTRE_EOF && length != 0)
10215                 end = start + length;
10216
10217         if (end <= start) {
10218                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
10219                         argv[0], start, end);
10220                 return CMD_HELP;
10221         }
10222
10223         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
10224                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
10225                         argv[0]);
10226                 return CMD_HELP;
10227         }
10228
10229         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
10230                 fprintf(stderr, "%s: mode is required with lockahead\n",
10231                         argv[0]);
10232                 return CMD_HELP;
10233         }
10234
10235         while (optind < argc) {
10236                 int rc2;
10237
10238                 path = argv[optind++];
10239
10240                 fd = open(path, O_RDONLY);
10241                 if (fd < 0) {
10242                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10243                                 argv[0], path, strerror(errno));
10244                         rc2 = -errno;
10245                         goto next;
10246                 }
10247
10248                 advice.lla_start = start;
10249                 advice.lla_end = end;
10250                 advice.lla_advice = advice_type;
10251                 advice.lla_value1 = 0;
10252                 advice.lla_value2 = 0;
10253                 advice.lla_value3 = 0;
10254                 advice.lla_value4 = 0;
10255                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
10256                         advice.lla_lockahead_mode = mode;
10257                         advice.lla_peradvice_flags = flags;
10258                 }
10259
10260                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
10261                 close(fd);
10262                 if (rc2 < 0) {
10263                         fprintf(stderr,
10264                                 "%s: cannot give advice '%s' to file '%s': %s\n",
10265                                 argv[0], ladvise_names[advice_type],
10266                                 path, strerror(errno));
10267
10268                         goto next;
10269                 }
10270
10271 next:
10272                 if (rc == 0 && rc2 < 0)
10273                         rc = rc2;
10274         }
10275         return rc;
10276 }
10277
10278 static const char *const heat_names[] = LU_HEAT_NAMES;
10279
10280 static int lfs_heat_get(int argc, char **argv)
10281 {
10282         struct lu_heat *heat;
10283         int rc = 0, rc2;
10284         char *path;
10285         int fd;
10286         int i;
10287
10288         if (argc <= 1)
10289                 return CMD_HELP;
10290
10291         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
10292         if (!heat) {
10293                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
10294                 return -ENOMEM;
10295         }
10296
10297         optind = 1;
10298         while (optind < argc) {
10299                 path = argv[optind++];
10300
10301                 fd = open(path, O_RDONLY);
10302                 if (fd < 0) {
10303                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10304                                 argv[0], path, strerror(errno));
10305                         rc2 = -errno;
10306                         goto next;
10307                 }
10308
10309                 heat->lh_count = OBD_HEAT_COUNT;
10310                 rc2 = llapi_heat_get(fd, heat);
10311                 close(fd);
10312                 if (rc2 < 0) {
10313                         fprintf(stderr,
10314                                 "%s: cannot get heat of file '%s': %s\n",
10315                                 argv[0], path, strerror(errno));
10316                         goto next;
10317                 }
10318
10319                 printf("flags: %x\n", heat->lh_flags);
10320                 for (i = 0; i < heat->lh_count; i++)
10321                         printf("%s: %llu\n", heat_names[i],
10322                                (unsigned long long)heat->lh_heat[i]);
10323 next:
10324                 if (rc == 0 && rc2 < 0)
10325                         rc = rc2;
10326         }
10327
10328         free(heat);
10329         return rc;
10330 }
10331
10332 static int lfs_heat_set(int argc, char **argv)
10333 {
10334         struct option long_opts[] = {
10335         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
10336         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10337         { .val = 'o',   .name = "off",          .has_arg = no_argument },
10338         { .val = 'O',   .name = "on",           .has_arg = no_argument },
10339         { .name = NULL } };
10340         enum lu_heat_flag flags = 0;
10341         int rc = 0, rc2;
10342         char *path;
10343         int fd;
10344         int c;
10345
10346         if (argc <= 1)
10347                 return CMD_HELP;
10348
10349         optind = 0;
10350         while ((c = getopt_long(argc, argv, "choO", long_opts, NULL)) != -1) {
10351                 switch (c) {
10352                 case 'c':
10353                         flags |= LU_HEAT_FLAG_CLEAR;
10354                         break;
10355                 case 'o':
10356                         flags |= LU_HEAT_FLAG_CLEAR;
10357                         flags |= LU_HEAT_FLAG_OFF;
10358                         break;
10359                 case 'O':
10360                         flags &= ~LU_HEAT_FLAG_OFF;
10361                         break;
10362                 default:
10363                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10364                                 progname, argv[optind - 1]);
10365                         fallthrough;
10366                 case 'h':
10367                         return CMD_HELP;
10368                 }
10369         }
10370
10371         if (argc <= optind) {
10372                 fprintf(stderr, "%s: please give one or more file names\n",
10373                         argv[0]);
10374                 return CMD_HELP;
10375         }
10376
10377         while (optind < argc) {
10378                 path = argv[optind++];
10379
10380                 fd = open(path, O_RDONLY);
10381                 if (fd < 0) {
10382                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10383                                 argv[0], path, strerror(errno));
10384                         rc2 = -errno;
10385                         goto next;
10386                 }
10387
10388                 rc2 = llapi_heat_set(fd, flags);
10389                 close(fd);
10390                 if (rc2 < 0) {
10391                         fprintf(stderr,
10392                                 "%s: cannot setflags heat of file '%s': %s\n",
10393                                 argv[0], path, strerror(errno));
10394                         goto next;
10395                 }
10396 next:
10397                 if (rc == 0 && rc2 < 0)
10398                         rc = rc2;
10399         }
10400         return rc;
10401 }
10402
10403 /**
10404  * The input string contains a comma delimited list of component ids and
10405  * ranges, for example "1,2-4,7".
10406  */
10407 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
10408 {
10409         bool end_of_loop = false;
10410         char *ptr = NULL;
10411         int nr = 0;
10412         int rc;
10413
10414         if (!arg)
10415                 return -EINVAL;
10416
10417         while (!end_of_loop) {
10418                 int start_index;
10419                 int end_index;
10420                 int i;
10421                 char *endptr = NULL;
10422
10423                 rc = -EINVAL;
10424                 ptr = strchrnul(arg, ',');
10425                 end_of_loop = *ptr == '\0';
10426                 *ptr = '\0';
10427
10428                 start_index = strtol(arg, &endptr, 0);
10429                 if (endptr == arg) /* no data at all */
10430                         break;
10431                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
10432                         break;
10433                 if (start_index < 0)
10434                         break;
10435
10436                 end_index = start_index;
10437                 if (*endptr == '-') {
10438                         end_index = strtol(endptr + 1, &endptr, 0);
10439                         if (*endptr != '\0')
10440                                 break;
10441                         if (end_index < start_index)
10442                                 break;
10443                 }
10444
10445                 for (i = start_index; i <= end_index && size > 0; i++) {
10446                         int j;
10447
10448                         /* remove duplicate */
10449                         for (j = 0; j < nr; j++) {
10450                                 if (ids[j] == i)
10451                                         break;
10452                         }
10453                         if (j == nr) { /* no duplicate */
10454                                 ids[nr++] = i;
10455                                 --size;
10456                         }
10457                 }
10458
10459                 if (size == 0 && i < end_index)
10460                         break;
10461
10462                 *ptr = ',';
10463                 arg = ++ptr;
10464                 rc = 0;
10465         }
10466         if (!end_of_loop && ptr)
10467                 *ptr = ',';
10468
10469         return rc < 0 ? rc : nr;
10470 }
10471
10472 /**
10473  * struct verify_mirror_id - Mirror id to be verified.
10474  * @mirror_id:   A specified mirror id.
10475  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
10476  */
10477 struct verify_mirror_id {
10478         __u16 mirror_id;
10479         bool is_valid_id;
10480 };
10481
10482 /**
10483  * compare_mirror_ids() - Compare mirror ids.
10484  * @layout: Mirror component list.
10485  * @cbdata: Callback data in verify_mirror_id structure.
10486  *
10487  * This is a callback function called by llapi_layout_comp_iterate()
10488  * to compare the specified mirror id with the one in the current
10489  * component of @layout. If they are the same, then the specified
10490  * mirror id is valid.
10491  *
10492  * Return: a negative error code on failure or
10493  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
10494  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
10495  */
10496 static inline
10497 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
10498 {
10499         struct verify_mirror_id *mirror_id_cbdata =
10500                                  (struct verify_mirror_id *)cbdata;
10501         uint32_t mirror_id;
10502         int rc = 0;
10503
10504         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
10505         if (rc < 0) {
10506                 rc = -errno;
10507                 fprintf(stderr,
10508                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
10509                         progname, strerror(errno));
10510                 return rc;
10511         }
10512
10513         if (mirror_id_cbdata->mirror_id == mirror_id) {
10514                 mirror_id_cbdata->is_valid_id = true;
10515                 return LLAPI_LAYOUT_ITER_STOP;
10516         }
10517
10518         return LLAPI_LAYOUT_ITER_CONT;
10519 }
10520
10521 /**
10522  * verify_mirror_ids() - Verify specified mirror ids.
10523  * @fname:      Mirrored file name.
10524  * @mirror_ids: Specified mirror ids to be verified.
10525  * @ids_nr:     Number of specified mirror ids.
10526  *
10527  * This function verifies that specified @mirror_ids are valid
10528  * in the mirrored file @fname.
10529  *
10530  * Return: 0 on success or a negative error code on failure.
10531  */
10532 static inline
10533 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
10534 {
10535         struct llapi_layout *layout = NULL;
10536         struct verify_mirror_id mirror_id_cbdata = { 0 };
10537         struct stat stbuf;
10538         uint32_t flr_state;
10539         int i;
10540         int fd;
10541         int rc = 0;
10542         int rc2 = 0;
10543
10544         if (ids_nr <= 0)
10545                 return -EINVAL;
10546
10547         if (stat(fname, &stbuf) < 0) {
10548                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10549                         progname, fname, strerror(errno));
10550                 rc = -errno;
10551                 goto error;
10552         }
10553
10554         if (!S_ISREG(stbuf.st_mode)) {
10555                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10556                         progname, fname);
10557                 rc = -EINVAL;
10558                 goto error;
10559         }
10560
10561         fd = open(fname, O_DIRECT | O_RDONLY);
10562         if (fd < 0) {
10563                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10564                         progname, fname, strerror(errno));
10565                 rc = -errno;
10566                 goto error;
10567         }
10568
10569         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10570         if (rc < 0) {
10571                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10572                         progname, fname, strerror(errno));
10573                 goto close_fd;
10574         }
10575
10576         layout = llapi_layout_get_by_fd(fd, 0);
10577         if (!layout) {
10578                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10579                         progname, fname, strerror(errno));
10580                 rc = -errno;
10581                 llapi_lease_release(fd);
10582                 goto close_fd;
10583         }
10584
10585         rc = llapi_layout_flags_get(layout, &flr_state);
10586         if (rc < 0) {
10587                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10588                         progname, fname, strerror(errno));
10589                 rc = -errno;
10590                 goto free_layout;
10591         }
10592
10593         flr_state &= LCM_FL_FLR_MASK;
10594         switch (flr_state) {
10595         case LCM_FL_NONE:
10596                 rc = -EINVAL;
10597                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10598                         progname, fname, llapi_layout_flags_string(flr_state));
10599                 goto free_layout;
10600         default:
10601                 break;
10602         }
10603
10604         rc2 = 0;
10605         for (i = 0; i < ids_nr; i++) {
10606                 mirror_id_cbdata.mirror_id = mirror_ids[i];
10607                 mirror_id_cbdata.is_valid_id = false;
10608
10609                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
10610                                                &mirror_id_cbdata);
10611                 if (rc < 0) {
10612                         rc = -errno;
10613                         fprintf(stderr,
10614                                 "%s: '%s' failed to verify mirror id: %u.\n",
10615                                 progname, fname, mirror_ids[i]);
10616                         goto free_layout;
10617                 }
10618
10619                 if (!mirror_id_cbdata.is_valid_id) {
10620                         rc2 = -EINVAL;
10621                         fprintf(stderr,
10622                                 "%s: '%s' invalid specified mirror id: %u.\n",
10623                                 progname, fname, mirror_ids[i]);
10624                 }
10625         }
10626         rc = rc2;
10627
10628 free_layout:
10629         llapi_layout_free(layout);
10630         llapi_lease_release(fd);
10631 close_fd:
10632         close(fd);
10633 error:
10634         return rc;
10635 }
10636
10637 static inline
10638 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
10639                            __u16 *mirror_ids, int ids_nr)
10640 {
10641         struct llapi_resync_comp comp_array[1024] = { { 0 } };
10642         struct llapi_layout *layout;
10643         struct stat stbuf;
10644         uint32_t flr_state;
10645         uint64_t start;
10646         uint64_t end;
10647         int comp_size = 0;
10648         int idx;
10649         int fd;
10650         int rc;
10651         int rc2;
10652
10653         if (stat(fname, &stbuf) < 0) {
10654                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10655                         progname, fname, strerror(errno));
10656                 rc = -errno;
10657                 goto error;
10658         }
10659         if (!S_ISREG(stbuf.st_mode)) {
10660                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10661                         progname, fname);
10662                 rc = -EINVAL;
10663                 goto error;
10664         }
10665
10666         /* Allow mirror resync even without the key on encrypted files */
10667         fd = open(fname, O_DIRECT | O_RDWR | O_FILE_ENC);
10668         if (fd < 0) {
10669                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10670                         progname, fname, strerror(errno));
10671                 rc = -errno;
10672                 goto error;
10673         }
10674
10675         layout = llapi_layout_get_by_fd(fd, 0);
10676         if (!layout) {
10677                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10678                         progname, fname, strerror(errno));
10679                 rc = -errno;
10680                 goto close_fd;
10681         }
10682
10683         rc = llapi_layout_flags_get(layout, &flr_state);
10684         if (rc) {
10685                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10686                         progname, fname, strerror(errno));
10687                 rc = -errno;
10688                 goto free_layout;
10689         }
10690
10691         flr_state &= LCM_FL_FLR_MASK;
10692         if (flr_state == LCM_FL_NONE) {
10693                 rc = -EINVAL;
10694                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
10695                         progname, fname);
10696                 goto free_layout;
10697         }
10698
10699         /* get stale component info */
10700         comp_size = llapi_mirror_find_stale(layout, comp_array,
10701                                             ARRAY_SIZE(comp_array),
10702                                             mirror_ids, ids_nr);
10703         if (comp_size <= 0) {
10704                 rc = comp_size;
10705                 goto free_layout;
10706         }
10707
10708         ioc->lil_mode = LL_LEASE_WRLCK;
10709         ioc->lil_flags = LL_LEASE_RESYNC;
10710         rc = llapi_lease_set(fd, ioc);
10711         if (rc < 0) {
10712                 if (rc == -EALREADY)
10713                         rc = 0;
10714                 else
10715                         fprintf(stderr,
10716                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
10717                                 progname, fname, strerror(-rc));
10718                 goto free_layout;
10719         }
10720
10721         /* get the read range [start, end) */
10722         start = comp_array[0].lrc_start;
10723         end = comp_array[0].lrc_end;
10724         for (idx = 1; idx < comp_size; idx++) {
10725                 if (comp_array[idx].lrc_start < start)
10726                         start = comp_array[idx].lrc_start;
10727                 if (end < comp_array[idx].lrc_end)
10728                         end = comp_array[idx].lrc_end;
10729         }
10730
10731         rc = llapi_lease_check(fd);
10732         if (rc != LL_LEASE_WRLCK) {
10733                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
10734                         progname, fname);
10735                 goto free_layout;
10736         }
10737
10738         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
10739                                       start, end);
10740         if (rc < 0)
10741                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %s.\n",
10742                         progname, fname, strerror(-rc));
10743
10744         rc = migrate_set_timestamps(fd, &stbuf);
10745         if (rc < 0) {
10746                 fprintf(stderr, "%s: '%s' cannot set timestamps: %s\n",
10747                         progname, fname, strerror(-rc));
10748                 goto free_layout;
10749         }
10750
10751         /* need to do the lease unlock even resync fails */
10752         ioc->lil_mode = LL_LEASE_UNLCK;
10753         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10754         ioc->lil_count = 0;
10755         for (idx = 0; idx < comp_size; idx++) {
10756                 if (comp_array[idx].lrc_synced) {
10757                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
10758                         ioc->lil_count++;
10759                 }
10760         }
10761
10762         rc2 = llapi_lease_set(fd, ioc);
10763         /**
10764          * llapi_lease_set returns lease mode when it request to unlock
10765          * the lease lock.
10766          */
10767         if (rc2 <= 0) {
10768                 /* rc2 == 0 means lost lease lock */
10769                 if (rc2 == 0 && rc == 0)
10770                         rc = -EBUSY;
10771                 else
10772                         rc = rc2;
10773                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
10774                         progname, fname,
10775                         rc2 == 0 ? "lost lease lock" : strerror(-rc2));
10776
10777                 llapi_lease_release(fd);
10778                 goto free_layout;
10779         }
10780
10781 free_layout:
10782         llapi_layout_free(layout);
10783 close_fd:
10784         close(fd);
10785 error:
10786         return rc;
10787 }
10788
10789 static inline int lfs_mirror_resync(int argc, char **argv)
10790 {
10791         struct option long_opts[] = {
10792         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10793         { .val = 'o',   .name = "only",         .has_arg = required_argument },
10794         { .name = NULL } };
10795         struct ll_ioc_lease *ioc = NULL;
10796         __u16 mirror_ids[128] = { 0 };
10797         int ids_nr = 0;
10798         int c;
10799         int rc = 0;
10800
10801         while ((c = getopt_long(argc, argv, "ho:", long_opts, NULL)) >= 0) {
10802                 switch (c) {
10803                 case 'o':
10804                         rc = parse_mirror_ids(mirror_ids,
10805                                         sizeof(mirror_ids) / sizeof(__u16),
10806                                         optarg);
10807                         if (rc < 0) {
10808                                 fprintf(stderr,
10809                                         "%s: bad mirror ids '%s'.\n",
10810                                         argv[0], optarg);
10811                                 goto error;
10812                         }
10813                         ids_nr = rc;
10814                         break;
10815                 default:
10816                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10817                                 progname, argv[optind - 1]);
10818                         fallthrough;
10819                 case 'h':
10820                         rc = CMD_HELP;
10821                         goto error;
10822                 }
10823         }
10824
10825         if (argc == optind) {
10826                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
10827                 rc = CMD_HELP;
10828                 goto error;
10829         }
10830
10831         if (ids_nr > 0 && argc > optind + 1) {
10832                 fprintf(stderr,
10833                     "%s: option '--only' cannot be used upon multiple files.\n",
10834                         argv[0]);
10835                 rc = CMD_HELP;
10836                 goto error;
10837         }
10838
10839         if (ids_nr > 0) {
10840                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
10841                 if (rc < 0)
10842                         goto error;
10843         }
10844
10845         /* set the lease on the file */
10846         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
10847         if (!ioc) {
10848                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
10849                         argv[0], strerror(errno));
10850                 rc = -errno;
10851                 goto error;
10852         }
10853
10854         for (; optind < argc; optind++) {
10855                 rc = lfs_mirror_resync_file(argv[optind], ioc,
10856                                             mirror_ids, ids_nr);
10857                 /* ignore previous file's error, continue with next file */
10858
10859                 /* reset ioc */
10860                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
10861         }
10862
10863         free(ioc);
10864 error:
10865         return rc;
10866 }
10867
10868 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
10869 {
10870         struct llapi_layout *layout;
10871         int rc;
10872
10873         layout = llapi_layout_get_by_fd(fd, 0);
10874         if (!layout) {
10875                 fprintf(stderr, "could not get layout.\n");
10876                 return  -EINVAL;
10877         }
10878
10879         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
10880         if (rc < 0) {
10881                 fprintf(stderr, "failed to iterate layout\n");
10882                 llapi_layout_free(layout);
10883
10884                 return rc;
10885         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
10886                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
10887                 llapi_layout_free(layout);
10888
10889                 return -EINVAL;
10890         }
10891         llapi_layout_free(layout);
10892
10893         return 0;
10894 }
10895
10896 /**
10897  * Check whether two files are the same file
10898  * \retval      0  same file
10899  * \retval      1  not the same file
10900  * \retval      <0 error code
10901  */
10902 static inline int check_same_file(int fd, const char *f2)
10903 {
10904         struct stat stbuf1;
10905         struct stat stbuf2;
10906
10907         if (fstat(fd, &stbuf1) < 0)
10908                 return -errno;
10909
10910         if (stat(f2, &stbuf2) < 0)
10911                 return 1;
10912
10913         if (stbuf1.st_rdev == stbuf2.st_rdev &&
10914             stbuf1.st_ino == stbuf2.st_ino)
10915                 return 0;
10916
10917         return 1;
10918 }
10919
10920 static inline int lfs_mirror_read(int argc, char **argv)
10921 {
10922         int rc = CMD_HELP;
10923         __u16 mirror_id = 0;
10924         const char *outfile = NULL;
10925         char *fname;
10926         int fd = 0;
10927         int outfd;
10928         int c;
10929         void *buf;
10930         const size_t buflen = 4 << 20;
10931         off_t pos;
10932         struct option long_opts[] = {
10933         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10934         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
10935         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
10936         { .name = NULL } };
10937
10938         while ((c = getopt_long(argc, argv, "hN:o:", long_opts, NULL)) >= 0) {
10939                 char *end;
10940
10941                 switch (c) {
10942                 case 'N': {
10943                         unsigned long int id;
10944
10945                         errno = 0;
10946                         id = strtoul(optarg, &end, 0);
10947                         if (errno != 0 || *end != '\0' || id == 0 ||
10948                             id > UINT16_MAX) {
10949                                 fprintf(stderr,
10950                                         "%s %s: invalid mirror ID '%s'\n",
10951                                         progname, argv[0], optarg);
10952                                 return rc;
10953                         }
10954
10955                         mirror_id = (__u16)id;
10956                         break;
10957                 }
10958                 case 'o':
10959                         outfile = optarg;
10960                         break;
10961                 default:
10962                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10963                                 progname, argv[optind - 1]);
10964                         fallthrough;
10965                 case 'h':
10966                         return CMD_HELP;
10967                 }
10968         }
10969
10970         if (argc == optind) {
10971                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10972                         progname, argv[0]);
10973                 return rc;
10974         } else if (argc > optind + 1) {
10975                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10976                 return rc;
10977         }
10978
10979         if (mirror_id == 0) {
10980                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
10981                         progname, argv[0]);
10982                 return rc;
10983         }
10984
10985         /* open mirror file */
10986         fname = argv[optind];
10987         fd = open(fname, O_DIRECT | O_RDONLY);
10988         if (fd < 0) {
10989                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
10990                         progname, argv[0], fname, strerror(errno));
10991                 return rc;
10992         }
10993
10994         /* verify mirror id */
10995         rc = verify_mirror_id_by_fd(fd, mirror_id);
10996         if (rc) {
10997                 fprintf(stderr,
10998                         "%s %s: cannot find mirror with ID %u in '%s'\n",
10999                         progname, argv[0], mirror_id, fname);
11000                 goto close_fd;
11001         }
11002
11003         /* open output file - O_EXCL ensures output is not the same as input */
11004         if (outfile) {
11005                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
11006                 if (outfd < 0) {
11007                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
11008                                 progname, argv[0], outfile, strerror(errno));
11009                         rc = -errno;
11010                         goto close_fd;
11011                 }
11012         } else {
11013                 outfd = STDOUT_FILENO;
11014         }
11015
11016         /* allocate buffer */
11017         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
11018         if (rc) {
11019                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
11020                                 progname, argv[0], rc);
11021                 goto close_outfd;
11022         }
11023
11024         pos = 0;
11025         while (1) {
11026                 ssize_t bytes_read;
11027                 ssize_t written = 0;
11028
11029                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
11030                 if (bytes_read < 0) {
11031                         rc = bytes_read;
11032                         fprintf(stderr,
11033                                 "%s %s: fail to read data from mirror %u: %s\n",
11034                                 progname, argv[0], mirror_id, strerror(-rc));
11035                         goto free_buf;
11036                 }
11037
11038                 /* EOF reached */
11039                 if (bytes_read == 0)
11040                         break;
11041
11042                 while (written < bytes_read) {
11043                         ssize_t written2;
11044
11045                         written2 = write(outfd, buf + written,
11046                                          bytes_read - written);
11047                         if (written2 < 0) {
11048                                 fprintf(stderr,
11049                                         "%s %s: fail to write %s: %s\n",
11050                                         progname, argv[0], outfile ? : "STDOUT",
11051                                         strerror(errno));
11052                                 rc = -errno;
11053                                 goto free_buf;
11054                         }
11055                         written += written2;
11056                 }
11057
11058                 if (written != bytes_read) {
11059                         fprintf(stderr,
11060                 "%s %s: written %ld bytes does not match with %ld read.\n",
11061                                 progname, argv[0], written, bytes_read);
11062                         rc = -EIO;
11063                         goto free_buf;
11064                 }
11065
11066                 pos += bytes_read;
11067         }
11068
11069         fsync(outfd);
11070         rc = 0;
11071
11072 free_buf:
11073         free(buf);
11074 close_outfd:
11075         if (outfile)
11076                 close(outfd);
11077 close_fd:
11078         close(fd);
11079
11080         return rc;
11081 }
11082
11083 static inline int lfs_mirror_write(int argc, char **argv)
11084 {
11085         int rc = CMD_HELP;
11086         __u16 mirror_id = 0;
11087         const char *inputfile = NULL;
11088         char *fname;
11089         int fd = 0;
11090         int inputfd;
11091         int c;
11092         void *buf;
11093         const size_t buflen = 4 << 20;
11094         off_t pos;
11095         size_t page_size = sysconf(_SC_PAGESIZE);
11096         struct ll_ioc_lease_id ioc;
11097         struct option long_opts[] = {
11098         { .val = 'h',   .name = "help",         .has_arg = no_argument },
11099         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
11100         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
11101         { .name = NULL } };
11102
11103         while ((c = getopt_long(argc, argv, "hi:N:", long_opts, NULL)) >= 0) {
11104                 char *end;
11105
11106                 switch (c) {
11107                 case 'N': {
11108                         unsigned long int id;
11109
11110                         errno = 0;
11111                         id = strtoul(optarg, &end, 0);
11112                         if (errno != 0 || *end != '\0' || id == 0 ||
11113                             id > UINT16_MAX) {
11114                                 fprintf(stderr,
11115                                         "%s %s: invalid mirror ID '%s'\n",
11116                                         progname, argv[0], optarg);
11117                                 return rc;
11118                         }
11119
11120                         mirror_id = (__u16)id;
11121                         break;
11122                 }
11123                 case 'i':
11124                         inputfile = optarg;
11125                         break;
11126                 default:
11127                         fprintf(stderr, "%s: unrecognized option '%s'\n",
11128                                 progname, argv[optind - 1]);
11129                         fallthrough;
11130                 case 'h':
11131                         return CMD_HELP;
11132                 }
11133         }
11134
11135         if (argc == optind) {
11136                 fprintf(stderr, "%s %s: no mirrored file provided\n",
11137                         progname, argv[0]);
11138                 return rc;
11139         } else if (argc > optind + 1) {
11140                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
11141                 return rc;
11142         }
11143
11144         if (mirror_id == 0) {
11145                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
11146                         progname, argv[0]);
11147                 return rc;
11148         }
11149
11150         /* open mirror file */
11151         fname = argv[optind];
11152         fd = open(fname, O_DIRECT | O_WRONLY);
11153         if (fd < 0) {
11154                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11155                         progname, argv[0], fname, strerror(errno));
11156                 return rc;
11157         }
11158
11159         /* verify mirror id */
11160         rc = verify_mirror_id_by_fd(fd, mirror_id);
11161         if (rc) {
11162                 fprintf(stderr,
11163                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11164                         progname, argv[0], mirror_id, fname);
11165                 goto close_fd;
11166         }
11167
11168         /* open input file */
11169         if (inputfile) {
11170                 rc = check_same_file(fd, inputfile);
11171                 if (rc == 0) {
11172                         fprintf(stderr,
11173                         "%s %s: input file cannot be the mirrored file\n",
11174                                 progname, argv[0]);
11175                         goto close_fd;
11176                 }
11177                 if (rc < 0)
11178                         goto close_fd;
11179
11180                 inputfd = open(inputfile, O_RDONLY, 0644);
11181                 if (inputfd < 0) {
11182                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
11183                                 progname, argv[0], inputfile, strerror(errno));
11184                         rc = -errno;
11185                         goto close_fd;
11186                 }
11187         } else {
11188                 inputfd = STDIN_FILENO;
11189         }
11190
11191         /* allocate buffer */
11192         rc = posix_memalign(&buf, page_size, buflen);
11193         if (rc) {
11194                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
11195                         progname, argv[0], rc);
11196                 goto close_inputfd;
11197         }
11198
11199         /* prepare target mirror components instantiation */
11200         ioc.lil_mode = LL_LEASE_WRLCK;
11201         ioc.lil_flags = LL_LEASE_RESYNC;
11202         ioc.lil_mirror_id = mirror_id;
11203         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
11204         if (rc < 0) {
11205                 fprintf(stderr,
11206                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
11207                         progname, argv[0], fname, strerror(errno));
11208                 goto free_buf;
11209         }
11210
11211         pos = 0;
11212         while (1) {
11213                 ssize_t bytes_read;
11214                 ssize_t written;
11215                 size_t to_write;
11216
11217                 rc = llapi_lease_check(fd);
11218                 if (rc != LL_LEASE_WRLCK) {
11219                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
11220                                 progname, argv[0], fname);
11221                         goto free_buf;
11222                 }
11223
11224                 bytes_read = read(inputfd, buf, buflen);
11225                 if (bytes_read < 0) {
11226                         rc = bytes_read;
11227                         fprintf(stderr,
11228                                 "%s %s: fail to read data from '%s': %s\n",
11229                                 progname, argv[0], inputfile ? : "STDIN",
11230                                 strerror(errno));
11231                         rc = -errno;
11232                         goto free_buf;
11233                 }
11234
11235                 /* EOF reached */
11236                 if (bytes_read == 0)
11237                         break;
11238
11239                 /* round up to page align to make direct IO happy. */
11240                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
11241
11242                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
11243                                              pos);
11244                 if (written < 0) {
11245                         rc = written;
11246                         fprintf(stderr,
11247                               "%s %s: fail to write to mirror %u: %s\n",
11248                                 progname, argv[0], mirror_id,
11249                                 strerror(-rc));
11250                         goto free_buf;
11251                 }
11252
11253                 pos += bytes_read;
11254         }
11255
11256         if (pos & (page_size - 1)) {
11257                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
11258                 if (rc < 0)
11259                         goto free_buf;
11260         }
11261
11262         ioc.lil_mode = LL_LEASE_UNLCK;
11263         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
11264         ioc.lil_count = 0;
11265         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
11266         if (rc <= 0) {
11267                 if (rc == 0)
11268                         rc = -EBUSY;
11269                 fprintf(stderr,
11270                         "%s %s: release lease lock of '%s' failed: %s\n",
11271                         progname, argv[0], fname, strerror(errno));
11272                 goto free_buf;
11273         }
11274
11275         rc = 0;
11276
11277 free_buf:
11278         free(buf);
11279 close_inputfd:
11280         if (inputfile)
11281                 close(inputfd);
11282 close_fd:
11283         close(fd);
11284
11285         return rc;
11286 }
11287
11288 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
11289 {
11290         struct llapi_layout *layout;
11291         struct collect_ids_data cid = { .cid_ids = ids,
11292                                         .cid_count = 0,
11293                                         .cid_exclude = exclude_id, };
11294         int rc;
11295
11296         layout = llapi_layout_get_by_fd(fd, 0);
11297         if (!layout) {
11298                 fprintf(stderr, "could not get layout\n");
11299                 return -EINVAL;
11300         }
11301
11302         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
11303         if (rc < 0) {
11304                 fprintf(stderr, "failed to iterate layout\n");
11305                 llapi_layout_free(layout);
11306
11307                 return rc;
11308         }
11309         llapi_layout_free(layout);
11310
11311         return cid.cid_count;
11312 }
11313
11314 #ifndef MIRROR_ID_NEG
11315 #define MIRROR_ID_NEG         0x8000
11316 #endif
11317
11318 static inline int lfs_mirror_copy(int argc, char **argv)
11319 {
11320         int rc = CMD_HELP;
11321         __u16 read_mirror_id = 0;
11322         __u16 ids[128] = { 0 };
11323         int count = 0;
11324         struct llapi_layout *layout = NULL;
11325         struct llapi_resync_comp comp_array[1024] = { { 0 } };
11326         int comp_size = 0;
11327         char *fname;
11328         int fd = 0;
11329         int c;
11330         int i;
11331         ssize_t copied;
11332         struct ll_ioc_lease *ioc = NULL;
11333         struct ll_ioc_lease_id *resync_ioc;
11334         struct option long_opts[] = {
11335         { .val = 'h',   .name = "help",         .has_arg = no_argument },
11336         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
11337         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
11338         { .name = NULL } };
11339         char cmd[PATH_MAX];
11340
11341         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11342         progname = cmd;
11343         while ((c = getopt_long(argc, argv, "hi:o:", long_opts, NULL)) >= 0) {
11344                 char *end;
11345
11346                 switch (c) {
11347                 case 'i': {
11348                         unsigned long int id;
11349
11350                         errno = 0;
11351                         id = strtoul(optarg, &end, 0);
11352                         if (errno != 0 || *end != '\0' || id == 0 ||
11353                             id > UINT16_MAX) {
11354                                 fprintf(stderr,
11355                                         "%s: invalid read mirror ID '%s'\n",
11356                                         progname, optarg);
11357                                 return rc;
11358                         }
11359
11360                         read_mirror_id = (__u16)id;
11361                         break;
11362                 }
11363                 case 'o':
11364                         if (!strcmp(optarg, "-1")) {
11365                                 /* specify all other mirrors */
11366                                 ids[0] = (__u16)-1;
11367                                 count = 1;
11368                         } else {
11369                                 count = parse_mirror_ids((__u16 *)ids,
11370                                                          ARRAY_SIZE(ids),
11371                                                          optarg);
11372                                 if (count < 0)
11373                                         return rc;
11374                         }
11375                         break;
11376                 default:
11377                         fprintf(stderr, "%s: unrecognized option '%s'\n",
11378                                 progname, argv[optind - 1]);
11379                         fallthrough;
11380                 case 'h':
11381                         return CMD_HELP;
11382                 }
11383         }
11384
11385         if (argc == optind) {
11386                 fprintf(stderr, "%s %s: no mirrored file provided\n",
11387                         progname, argv[0]);
11388                 return rc;
11389         } else if (argc > optind + 1) {
11390                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
11391                 return rc;
11392         }
11393
11394         if (read_mirror_id == 0) {
11395                 fprintf(stderr,
11396                         "%s %s: no valid read mirror ID %d is provided\n",
11397                         progname, argv[0], read_mirror_id);
11398                 return rc;
11399         }
11400
11401         if (count == 0) {
11402                 fprintf(stderr,
11403                         "%s %s: no write mirror ID is provided\n",
11404                         progname, argv[0]);
11405                 return rc;
11406         }
11407
11408         for (i = 0; i < count; i++) {
11409                 if (read_mirror_id == ids[i]) {
11410                         fprintf(stderr,
11411                         "%s %s: read and write mirror ID cannot be the same\n",
11412                                 progname, argv[0]);
11413                         return rc;
11414                 }
11415         }
11416
11417         /* open mirror file */
11418         fname = argv[optind];
11419
11420         fd = open(fname, O_DIRECT | O_RDWR);
11421         if (fd < 0) {
11422                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11423                         progname, argv[0], fname, strerror(errno));
11424                 return rc;
11425         }
11426
11427         /* write to all other mirrors */
11428         if (ids[0] == (__u16)-1) {
11429                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
11430                 if (count <= 0) {
11431                         rc = count;
11432                         fprintf(stderr,
11433                         "%s %s: failed to get other mirror ids in '%s': %d\n",
11434                                 progname, argv[0], fname, rc);
11435                         goto close_fd;
11436                 }
11437         }
11438
11439         /* verify mirror id */
11440         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
11441         if (rc) {
11442                 fprintf(stderr,
11443                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11444                         progname, argv[0], read_mirror_id, fname);
11445                 goto close_fd;
11446         }
11447
11448         for (i = 0; i < count; i++) {
11449                 rc = verify_mirror_id_by_fd(fd, ids[i]);
11450                 if (rc) {
11451                         fprintf(stderr,
11452                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11453                                 progname, argv[0], ids[i], fname);
11454                         goto close_fd;
11455                 }
11456         }
11457
11458         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
11459         if (!ioc) {
11460                 fprintf(stderr,
11461                         "%s %s: cannot alloc comp id array for ioc: %s\n",
11462                         progname, argv[0], strerror(errno));
11463                 rc = -errno;
11464                 goto close_fd;
11465         }
11466
11467         /* get stale component info */
11468         layout = llapi_layout_get_by_fd(fd, 0);
11469         if (!layout) {
11470                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
11471                         progname, argv[0], fname, strerror(errno));
11472                 rc = -errno;
11473                 goto free_ioc;
11474         }
11475         comp_size = llapi_mirror_find_stale(layout, comp_array,
11476                                             ARRAY_SIZE(comp_array),
11477                                             ids, count);
11478         llapi_layout_free(layout);
11479         if (comp_size < 0) {
11480                 rc = comp_size;
11481                 goto free_ioc;
11482         }
11483
11484         /* prepare target mirror components instantiation */
11485         resync_ioc = (struct ll_ioc_lease_id *)ioc;
11486         resync_ioc->lil_mode = LL_LEASE_WRLCK;
11487         resync_ioc->lil_flags = LL_LEASE_RESYNC;
11488         if (count == 1)
11489                 resync_ioc->lil_mirror_id = ids[0];
11490         else
11491                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
11492         rc = llapi_lease_set(fd, ioc);
11493         if (rc < 0) {
11494                 fprintf(stderr,
11495                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
11496                         progname, argv[0], fname, strerror(errno));
11497                 goto free_ioc;
11498         }
11499
11500         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
11501         if (copied < 0) {
11502                 rc = copied;
11503                 fprintf(stderr, "%s %s: copy error: %d\n",
11504                         progname, argv[0], rc);
11505                 goto free_ioc;
11506         }
11507
11508         fprintf(stdout, "mirror copied successfully: ");
11509         for (i = 0; i < copied; i++)
11510                 fprintf(stdout, "%d ", ids[i]);
11511         fprintf(stdout, "\n");
11512
11513         ioc->lil_mode = LL_LEASE_UNLCK;
11514         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
11515         ioc->lil_count = 0;
11516         for (i = 0; i < comp_size; i++) {
11517                 int j;
11518
11519                 for (j = 0; j < copied; j++) {
11520                         if (comp_array[i].lrc_mirror_id != ids[j])
11521                                 continue;
11522
11523                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
11524                         ioc->lil_count++;
11525                 }
11526         }
11527         rc = llapi_lease_set(fd, ioc);
11528         if (rc <= 0) {
11529                 if (rc == 0)
11530                         rc = -EBUSY;
11531                 fprintf(stderr,
11532                         "%s %s: release lease lock of '%s' failed: %s\n",
11533                         progname, argv[0], fname, strerror(errno));
11534                 goto free_ioc;
11535         }
11536
11537         rc = 0;
11538
11539 free_ioc:
11540         free(ioc);
11541 close_fd:
11542         close(fd);
11543
11544         return rc;
11545 }
11546
11547 /**
11548  * struct verify_chunk - Mirror chunk to be verified.
11549  * @chunk:        [start, end) of the chunk.
11550  * @mirror_count: Number of mirror ids in @mirror_id array.
11551  * @mirror_id:    Array of valid mirror ids that cover the chunk.
11552  */
11553 struct verify_chunk {
11554         struct lu_extent chunk;
11555         unsigned int mirror_count;
11556         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
11557 };
11558
11559 /**
11560  * print_chunks() - Print chunk information.
11561  * @fname:       Mirrored file name.
11562  * @chunks:      Array of chunks.
11563  * @chunk_count: Number of chunks in @chunks array.
11564  *
11565  * This function prints [start, end) of each chunk in @chunks
11566  * for mirrored file @fname, and also prints the valid mirror ids
11567  * that cover the chunk.
11568  *
11569  * Return: void.
11570  */
11571 static inline
11572 void print_chunks(const char *fname, struct verify_chunk *chunks,
11573                   int chunk_count)
11574 {
11575         int i;
11576         int j;
11577
11578         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
11579         for (i = 0; i < chunk_count; i++) {
11580                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
11581
11582                 if (chunks[i].mirror_count == 0)
11583                         fprintf(stdout, "\t[");
11584                 else {
11585                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
11586                         for (j = 1; j < chunks[i].mirror_count; j++)
11587                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
11588                 }
11589                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
11590         }
11591         fprintf(stdout, "\n");
11592 }
11593
11594 /**
11595  * print_checksums() - Print CRC-32 checksum values.
11596  * @chunk: A chunk and its corresponding valid mirror ids.
11597  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
11598  *
11599  * This function prints CRC-32 checksum values on @chunk for
11600  * each valid mirror that covers it.
11601  *
11602  * Return: void.
11603  */
11604 static inline
11605 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
11606 {
11607         int i;
11608
11609         fprintf(stdout,
11610                 "CRC-32 checksum value for chunk "DEXT":\n",
11611                 PEXT(&chunk->chunk));
11612         for (i = 0; i < chunk->mirror_count; i++)
11613                 fprintf(stdout, "Mirror %u:\t%#lx\n",
11614                         chunk->mirror_id[i], crc[i]);
11615         fprintf(stdout, "\n");
11616 }
11617
11618 /**
11619  * filter_mirror_id() - Filter specified mirror ids.
11620  * @chunks:      Array of chunks.
11621  * @chunk_count: Number of chunks in @chunks array.
11622  * @mirror_ids:  Specified mirror ids to be verified.
11623  * @ids_nr:      Number of specified mirror ids.
11624  *
11625  * This function scans valid mirror ids that cover each chunk in @chunks
11626  * and filters specified mirror ids.
11627  *
11628  * Return: void.
11629  */
11630 static inline
11631 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
11632                       __u16 *mirror_ids, int ids_nr)
11633 {
11634         int i;
11635         int j;
11636         int k;
11637         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11638         unsigned int valid_count = 0;
11639
11640         for (i = 0; i < chunk_count; i++) {
11641                 if (chunks[i].mirror_count == 0)
11642                         continue;
11643
11644                 valid_count = 0;
11645                 for (j = 0; j < ids_nr; j++) {
11646                         for (k = 0; k < chunks[i].mirror_count; k++) {
11647                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
11648                                         valid_id[valid_count] = mirror_ids[j];
11649                                         valid_count++;
11650                                         break;
11651                                 }
11652                         }
11653                 }
11654
11655                 memcpy(chunks[i].mirror_id, valid_id,
11656                        sizeof(__u16) * valid_count);
11657                 chunks[i].mirror_count = valid_count;
11658         }
11659 }
11660
11661 /**
11662  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
11663  * @layout:      Mirror component list.
11664  * @chunks:      Array of chunks.
11665  * @chunks_size: Array size of @chunks.
11666  *
11667  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
11668  * to find out chunk segments and store them in @chunks array.
11669  *
11670  * The @mirror_id array in each element of @chunks will store the valid
11671  * mirror ids that cover the chunk. If a mirror component covering the
11672  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
11673  * will not be stored into the @mirror_id array, and the chunk for that
11674  * mirror will not be verified.
11675  *
11676  * The @mirror_count in each element of @chunks will store the number of
11677  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
11678  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
11679  * indicates the chunk is valid in only one mirror. In both cases, the
11680  * chunk will not be verified.
11681  *
11682  * Here is an example:
11683  *
11684  *  0      1M     2M     3M     4M           EOF
11685  *  +------+-------------+--------------------+
11686  *  |      |             |      S             |       mirror1
11687  *  +------+------+------+------+-------------+
11688  *  |             |   S  |   S  |             |       mirror2
11689  *  +-------------+------+------+-------------+
11690  *
11691  * prepared @chunks array will contain 5 elements:
11692  * (([0, 1M), [1, 2], 2),
11693  *  ([1M, 2M), [1, 2], 2),
11694  *  ([2M, 3M), [1], 1),
11695  *  ([3M, 4M], [], 0),
11696  *  ([4M, EOF), [2], 1))
11697  *
11698  * Return: the actual array size of @chunks on success
11699  *         or a negative error code on failure.
11700  */
11701 static inline
11702 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
11703                              struct verify_chunk *chunks,
11704                              size_t chunks_size)
11705 {
11706         uint64_t start;
11707         uint64_t end;
11708         uint32_t mirror_id;
11709         uint32_t flags;
11710         int idx = 0;
11711         int i = 0;
11712         int rc = 0;
11713
11714         memset(chunks, 0, sizeof(*chunks) * chunks_size);
11715
11716         while (1) {
11717                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
11718                 if (rc < 0) {
11719                         fprintf(stderr,
11720                                 "%s: move to the first layout component: %s.\n",
11721                                 progname, strerror(errno));
11722                         goto error;
11723                 }
11724
11725                 i = 0;
11726                 rc = 0;
11727                 chunks[idx].chunk.e_end = LUSTRE_EOF;
11728                 while (rc == 0) {
11729                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
11730                         if (rc < 0) {
11731                                 fprintf(stderr,
11732                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
11733                                         progname, strerror(errno));
11734                                 goto error;
11735                         }
11736
11737                         if (start > chunks[idx].chunk.e_start ||
11738                             end <= chunks[idx].chunk.e_start)
11739                                 goto next;
11740
11741                         if (end < chunks[idx].chunk.e_end)
11742                                 chunks[idx].chunk.e_end = end;
11743
11744                         rc = llapi_layout_comp_flags_get(layout, &flags);
11745                         if (rc < 0) {
11746                                 fprintf(stderr,
11747                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
11748                                         progname, strerror(errno));
11749                                 goto error;
11750                         }
11751
11752                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
11753                                 goto next;
11754
11755                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
11756                         if (rc < 0) {
11757                                 fprintf(stderr,
11758                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
11759                                         progname, strerror(errno));
11760                                 goto error;
11761                         }
11762
11763                         chunks[idx].mirror_id[i] = mirror_id;
11764                         i++;
11765                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
11766                                 fprintf(stderr,
11767                                         "%s: mirror_id array is too small.\n",
11768                                         progname);
11769                                 rc = -EINVAL;
11770                                 goto error;
11771                         }
11772
11773 next:
11774                         rc = llapi_layout_comp_use(layout,
11775                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
11776                         if (rc < 0) {
11777                                 fprintf(stderr,
11778                                         "%s: move to the next layout component: %s.\n",
11779                                         progname, strerror(errno));
11780                                 goto error;
11781                         }
11782                 } /* loop through all components */
11783
11784                 chunks[idx].mirror_count = i;
11785
11786                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
11787                         break;
11788
11789                 idx++;
11790                 if (idx >= chunks_size) {
11791                         fprintf(stderr, "%s: chunks array is too small.\n",
11792                                 progname);
11793                         rc = -EINVAL;
11794                         goto error;
11795                 }
11796
11797                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
11798         }
11799
11800 error:
11801         return rc < 0 ? rc : idx + 1;
11802 }
11803
11804 /**
11805  * lfs_mirror_verify_chunk() - Verify a chunk.
11806  * @fd:        File descriptor of the mirrored file.
11807  * @file_size: Size of the mirrored file.
11808  * @chunk:     A chunk and its corresponding valid mirror ids.
11809  * @verbose:   Verbose mode.
11810  *
11811  * This function verifies a @chunk contains exactly the same data
11812  * ammong the mirrors that cover it.
11813  *
11814  * If @verbose is specified, then the function will print where the
11815  * differences are if the data do not match. Otherwise, it will
11816  * just return an error in that case.
11817  *
11818  * Return: 0 on success or a negative error code on failure.
11819  */
11820 static inline
11821 int lfs_mirror_verify_chunk(int fd, size_t file_size,
11822                             struct verify_chunk *chunk, int verbose)
11823 {
11824         const size_t buflen = 4 * 1024 * 1024; /* 4M */
11825         void *buf;
11826         size_t page_size = sysconf(_SC_PAGESIZE);
11827         ssize_t bytes_read;
11828         ssize_t bytes_done;
11829         size_t count;
11830         off_t pos;
11831         unsigned long crc;
11832         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11833         int i;
11834         int rc = 0;
11835
11836         if (file_size == 0)
11837                 return 0;
11838
11839         rc = posix_memalign(&buf, page_size, buflen);
11840         if (rc) /* error code is returned directly */
11841                 return -rc;
11842
11843         if (verbose > 1) {
11844                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11845                         PEXT(&chunk->chunk));
11846                 for (i = 0; i < chunk->mirror_count; i++)
11847                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11848                 fprintf(stdout, "\n");
11849         }
11850
11851         bytes_done = 0;
11852         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
11853         pos = chunk->chunk.e_start;
11854         while (bytes_done < count) {
11855                 /* compute initial CRC-32 checksum */
11856                 crc = crc32(0L, Z_NULL, 0);
11857                 memset(crc_array, 0, sizeof(crc_array));
11858
11859                 bytes_read = 0;
11860                 for (i = 0; i < chunk->mirror_count; i++) {
11861                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
11862                                                        buf, buflen, pos);
11863                         if (bytes_read < 0) {
11864                                 rc = bytes_read;
11865                                 fprintf(stderr,
11866                                         "%s: failed to read data from mirror %u: %s.\n",
11867                                         progname, chunk->mirror_id[i],
11868                                         strerror(-rc));
11869                                 goto error;
11870                         }
11871
11872                         /* compute new CRC-32 checksum */
11873                         crc_array[i] = crc32(crc, buf, bytes_read);
11874                 }
11875
11876                 if (verbose)
11877                         print_checksums(chunk, crc_array);
11878
11879                 /* compare CRC-32 checksum values */
11880                 for (i = 1; i < chunk->mirror_count; i++) {
11881                         if (crc_array[i] != crc_array[0]) {
11882                                 rc = -EINVAL;
11883
11884                                 fprintf(stderr,
11885                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
11886                                         progname, PEXT(&chunk->chunk),
11887                                         chunk->mirror_id[0],
11888                                         chunk->mirror_id[i]);
11889                         }
11890                 }
11891
11892                 pos += bytes_read;
11893                 bytes_done += bytes_read;
11894         }
11895
11896         if (verbose > 1 && rc == 0) {
11897                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11898                         PEXT(&chunk->chunk));
11899                 for (i = 0; i < chunk->mirror_count; i++)
11900                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11901                 fprintf(stdout, " PASS\n\n");
11902         }
11903
11904 error:
11905         free(buf);
11906         return rc;
11907 }
11908
11909 /**
11910  * lfs_mirror_verify_file() - Verify a mirrored file.
11911  * @fname:      Mirrored file name.
11912  * @mirror_ids: Specified mirror ids to be verified.
11913  * @ids_nr:     Number of specified mirror ids.
11914  * @verbose:    Verbose mode.
11915  *
11916  * This function verifies that each SYNC mirror of a mirrored file
11917  * specified by @fname contains exactly the same data.
11918  *
11919  * If @mirror_ids is specified, then the function will verify the
11920  * mirrors specified by @mirror_ids contain exactly the same data.
11921  *
11922  * If @verbose is specified, then the function will print where the
11923  * differences are if the data do not match. Otherwise, it will
11924  * just return an error in that case.
11925  *
11926  * Return: 0 on success or a negative error code on failure.
11927  */
11928 static inline
11929 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
11930                            int verbose)
11931 {
11932         struct verify_chunk chunks_array[1024] = { };
11933         struct llapi_layout *layout = NULL;
11934         struct stat stbuf;
11935         uint32_t flr_state;
11936         int fd;
11937         int chunk_count = 0;
11938         int idx = 0;
11939         int rc = 0;
11940         int rc1 = 0;
11941         int rc2 = 0;
11942
11943         if (stat(fname, &stbuf) < 0) {
11944                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
11945                         progname, fname, strerror(errno));
11946                 rc = -errno;
11947                 goto error;
11948         }
11949
11950         if (!S_ISREG(stbuf.st_mode)) {
11951                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
11952                         progname, fname);
11953                 rc = -EINVAL;
11954                 goto error;
11955         }
11956
11957         if (stbuf.st_size == 0) {
11958                 if (verbose)
11959                         fprintf(stdout, "%s: '%s' file size is 0.\n",
11960                                 progname, fname);
11961                 rc = 0;
11962                 goto error;
11963         }
11964
11965         /* Allow mirror verify even without the key on encrypted files */
11966         fd = open(fname, O_DIRECT | O_RDONLY | O_FILE_ENC);
11967         if (fd < 0) {
11968                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
11969                         progname, fname, strerror(errno));
11970                 rc = -errno;
11971                 goto error;
11972         }
11973
11974         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
11975         if (rc < 0) {
11976                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
11977                         progname, fname, strerror(errno));
11978                 goto close_fd;
11979         }
11980
11981         layout = llapi_layout_get_by_fd(fd, 0);
11982         if (!layout) {
11983                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
11984                         progname, fname, strerror(errno));
11985                 rc = -errno;
11986                 llapi_lease_release(fd);
11987                 goto close_fd;
11988         }
11989
11990         rc = llapi_layout_flags_get(layout, &flr_state);
11991         if (rc < 0) {
11992                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
11993                         progname, fname, strerror(errno));
11994                 rc = -errno;
11995                 goto free_layout;
11996         }
11997
11998         flr_state &= LCM_FL_FLR_MASK;
11999         switch (flr_state) {
12000         case LCM_FL_NONE:
12001                 rc = -EINVAL;
12002                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
12003                         progname, fname, llapi_layout_flags_string(flr_state));
12004                 goto free_layout;
12005         default:
12006                 break;
12007         }
12008
12009         /* find out mirror chunks to be verified */
12010         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
12011                                                ARRAY_SIZE(chunks_array));
12012         if (chunk_count < 0) {
12013                 rc = chunk_count;
12014                 goto free_layout;
12015         }
12016
12017         if (ids_nr > 0)
12018                 /* filter specified mirror ids */
12019                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
12020
12021         if (verbose > 2)
12022                 print_chunks(fname, chunks_array, chunk_count);
12023
12024         for (idx = 0; idx < chunk_count; idx++) {
12025                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
12026                         if (verbose)
12027                                 fprintf(stdout,
12028                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
12029                                         progname, fname,
12030                                         PEXT(&chunks_array[idx].chunk),
12031                                         (unsigned long long)stbuf.st_size);
12032                         break;
12033                 }
12034
12035                 if (chunks_array[idx].mirror_count == 0) {
12036                         fprintf(stderr,
12037                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
12038                                 progname, fname,
12039                                 PEXT(&chunks_array[idx].chunk));
12040                         if (verbose) {
12041                                 fprintf(stderr, "skipped\n");
12042                                 continue;
12043                         }
12044                         rc = -EINVAL;
12045                         fprintf(stderr, "failed\n");
12046                         goto free_layout;
12047                 }
12048
12049                 if (chunks_array[idx].mirror_count == 1) {
12050                         if (verbose)
12051                                 fprintf(stdout,
12052                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
12053                                         progname, fname,
12054                                         PEXT(&chunks_array[idx].chunk),
12055                                         chunks_array[idx].mirror_id[0]);
12056                         continue;
12057                 }
12058
12059                 rc = llapi_lease_check(fd);
12060                 if (rc != LL_LEASE_RDLCK) {
12061                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
12062                                 progname, fname);
12063                         goto free_layout;
12064                 }
12065
12066                 /* verify one chunk */
12067                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
12068                                               &chunks_array[idx], verbose);
12069                 if (rc1 < 0) {
12070                         rc2 = rc1;
12071                         if (!verbose) {
12072                                 rc = rc1;
12073                                 goto free_layout;
12074                         }
12075                 }
12076         }
12077
12078         if (rc2 < 0)
12079                 rc = rc2;
12080
12081 free_layout:
12082         llapi_layout_free(layout);
12083         llapi_lease_release(fd);
12084 close_fd:
12085         close(fd);
12086 error:
12087         return rc;
12088 }
12089
12090 /**
12091  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
12092  * @argc: The count of lfs mirror verify command line arguments.
12093  * @argv: Array of strings for lfs mirror verify command line arguments.
12094  *
12095  * This function parses lfs mirror verify command and verifies the
12096  * specified mirrored file(s).
12097  *
12098  * Return: 0 on success or a negative error code on failure.
12099  */
12100 static inline int lfs_mirror_verify(int argc, char **argv)
12101 {
12102         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
12103         int ids_nr = 0;
12104         int c;
12105         int verbose = 0;
12106         int rc = 0;
12107         int rc1 = 0;
12108         char cmd[PATH_MAX];
12109
12110         struct option long_opts[] = {
12111         { .val = 'h',   .name = "help",         .has_arg = no_argument },
12112         { .val = 'o',   .name = "only",         .has_arg = required_argument },
12113         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
12114         { .name = NULL } };
12115
12116         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12117         progname = cmd;
12118         while ((c = getopt_long(argc, argv, "ho:v", long_opts, NULL)) >= 0) {
12119                 switch (c) {
12120                 case 'o':
12121                         rc = parse_mirror_ids(mirror_ids,
12122                                               ARRAY_SIZE(mirror_ids),
12123                                               optarg);
12124                         if (rc < 0) {
12125                                 fprintf(stderr,
12126                                         "%s: bad mirror ids '%s'.\n",
12127                                         progname, optarg);
12128                                 goto error;
12129                         }
12130                         ids_nr = rc;
12131                         if (ids_nr < 2) {
12132                                 fprintf(stderr,
12133                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
12134                                         progname);
12135                                 rc = CMD_HELP;
12136                                 goto error;
12137                         }
12138                         break;
12139                 case 'v':
12140                         verbose++;
12141                         break;
12142                 default:
12143                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12144                                 progname, argv[optind - 1]);
12145                         fallthrough;
12146                 case 'h':
12147                         rc = CMD_HELP;
12148                         goto error;
12149                 }
12150         }
12151
12152         if (argc == optind) {
12153                 fprintf(stderr, "%s: no file name given.\n", progname);
12154                 rc = CMD_HELP;
12155                 goto error;
12156         }
12157
12158         if (ids_nr > 0 && argc > optind + 1) {
12159                 fprintf(stderr,
12160                         "%s: '--only' cannot be used upon multiple files.\n",
12161                         progname);
12162                 rc = CMD_HELP;
12163                 goto error;
12164         }
12165
12166         if (ids_nr > 0) {
12167                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
12168                 if (rc < 0)
12169                         goto error;
12170         }
12171
12172         rc = 0;
12173         for (; optind < argc; optind++) {
12174                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
12175                                              verbose);
12176                 if (rc1 < 0)
12177                         rc = rc1;
12178         }
12179 error:
12180         return rc;
12181 }
12182
12183 /**
12184  * lfs_mirror() - Parse and execute lfs mirror commands.
12185  * @argc: The count of lfs mirror command line arguments.
12186  * @argv: Array of strings for lfs mirror command line arguments.
12187  *
12188  * This function parses lfs mirror commands and performs the
12189  * corresponding functions specified in mirror_cmdlist[].
12190  *
12191  * Return: 0 on success or an error code on failure.
12192  */
12193 static int lfs_mirror(int argc, char **argv)
12194 {
12195         char cmd[PATH_MAX];
12196         int rc = 0;
12197
12198         setlinebuf(stdout);
12199
12200         Parser_init("lfs-mirror > ", mirror_cmdlist);
12201
12202         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12203         progname = cmd;
12204         program_invocation_short_name = cmd;
12205         if (argc > 1)
12206                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
12207         else
12208                 rc = Parser_commands();
12209
12210         return rc < 0 ? -rc : rc;
12211 }
12212
12213 static void lustre_som_swab(struct lustre_som_attrs *attrs)
12214 {
12215 #if __BYTE_ORDER == __BIG_ENDIAN
12216         __swab16s(&attrs->lsa_valid);
12217         __swab64s(&attrs->lsa_size);
12218         __swab64s(&attrs->lsa_blocks);
12219 #endif
12220 }
12221
12222 enum lfs_som_type {
12223         LFS_SOM_SIZE = 0x1,
12224         LFS_SOM_BLOCKS = 0x2,
12225         LFS_SOM_FLAGS = 0x4,
12226         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
12227                            LFS_SOM_FLAGS,
12228 };
12229
12230 static int lfs_getsom(int argc, char **argv)
12231 {
12232         const char *path;
12233         struct lustre_som_attrs *attrs;
12234         char buf[sizeof(*attrs) + 64];
12235         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
12236         int rc = 0, c;
12237
12238         while ((c = getopt(argc, argv, "bfhs")) != -1) {
12239                 switch (c) {
12240                 case 'b':
12241                         type = LFS_SOM_BLOCKS;
12242                         break;
12243                 case 'f':
12244                         type = LFS_SOM_FLAGS;
12245                         break;
12246                 case 's':
12247                         type = LFS_SOM_SIZE;
12248                         break;
12249                 default:
12250                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12251                                 progname, argv[optind - 1]);
12252                         fallthrough;
12253                 case 'h':
12254                         return CMD_HELP;
12255                 }
12256         }
12257
12258         argc -= optind;
12259         argv += optind;
12260
12261         if (argc != 1) {
12262                 fprintf(stderr, "%s: %s\n",
12263                         progname, argc == 0 ? "miss file target" :
12264                         "input more than 2 files");
12265                 return CMD_HELP;
12266         }
12267
12268         path = argv[0];
12269         attrs = (void *)buf;
12270         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
12271         if (rc < 0) {
12272                 rc = -errno;
12273                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
12274                         argv[0], strerror(errno), errno);
12275                 return rc;
12276         }
12277
12278         lustre_som_swab(attrs);
12279
12280         switch (type) {
12281         case LFS_SOM_ATTR_ALL:
12282                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
12283                        path, (unsigned long long)attrs->lsa_size,
12284                        (unsigned long long)attrs->lsa_blocks,
12285                        attrs->lsa_valid);
12286                 break;
12287         case LFS_SOM_SIZE:
12288                 printf("%llu\n", (unsigned long long)attrs->lsa_size);
12289                 break;
12290         case LFS_SOM_BLOCKS:
12291                 printf("%llu\n", (unsigned long long)attrs->lsa_blocks);
12292                 break;
12293         case LFS_SOM_FLAGS:
12294                 printf("%x\n", attrs->lsa_valid);
12295                 break;
12296         default:
12297                 fprintf(stderr, "%s: unknown option\n", progname);
12298                 return CMD_HELP;
12299         }
12300
12301         return 0;
12302 }
12303
12304 /**
12305  * lfs_mirror_list_commands() - List lfs mirror commands.
12306  * @argc: The count of command line arguments.
12307  * @argv: Array of strings for command line arguments.
12308  *
12309  * This function lists lfs mirror commands defined in mirror_cmdlist[].
12310  *
12311  * Return: 0 on success.
12312  */
12313 static int lfs_mirror_list_commands(int argc, char **argv)
12314 {
12315         char buffer[81] = "";
12316
12317         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
12318                              NULL, 0, 4);
12319
12320         return 0;
12321 }
12322
12323 static int lfs_pcc_attach(int argc, char **argv)
12324 {
12325         struct option long_opts[] = {
12326         { .val = 'h',   .name = "help", .has_arg = no_argument },
12327         { .val = 'i',   .name = "id",   .has_arg = required_argument },
12328         { .name = NULL } };
12329         int c;
12330         int rc = 0;
12331         __u32 archive_id = 0;
12332         const char *path;
12333         char *end;
12334         char fullpath[PATH_MAX];
12335         enum lu_pcc_type type = LU_PCC_READWRITE;
12336
12337         optind = 0;
12338         while ((c = getopt_long(argc, argv, "hi:",
12339                                 long_opts, NULL)) != -1) {
12340                 switch (c) {
12341                 case 'i':
12342                         errno = 0;
12343                         archive_id = strtoul(optarg, &end, 0);
12344                         if (errno != 0 || *end != '\0' ||
12345                             archive_id == 0 || archive_id > UINT32_MAX) {
12346                                 fprintf(stderr,
12347                                         "error: %s: bad archive ID '%s'\n",
12348                                         progname, optarg);
12349                                 return CMD_HELP;
12350                         }
12351                         break;
12352                 default:
12353                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12354                                 progname, argv[optind - 1]);
12355                         fallthrough;
12356                 case 'h':
12357                         return CMD_HELP;
12358                 }
12359         }
12360
12361         if (archive_id == 0) {
12362                 fprintf(stderr, "%s: must specify attach ID\n", argv[0]);
12363                 return CMD_HELP;
12364         }
12365
12366         if (argc <= optind) {
12367                 fprintf(stderr, "%s: must specify one or more file names\n",
12368                         argv[0]);
12369                 return CMD_HELP;
12370         }
12371
12372         while (optind < argc) {
12373                 int rc2;
12374
12375                 path = argv[optind++];
12376                 if (!realpath(path, fullpath)) {
12377                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12378                                 argv[0], path, strerror(errno));
12379                         if (rc == 0)
12380                                 rc = -EINVAL;
12381                         continue;
12382                 }
12383
12384                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
12385                 if (rc2 < 0) {
12386                         fprintf(stderr,
12387                                 "%s: cannot attach '%s' to PCC with archive ID '%u': %s\n",
12388                                 argv[0], path, archive_id, strerror(-rc2));
12389                         if (rc == 0)
12390                                 rc = rc2;
12391                 }
12392         }
12393         return rc;
12394 }
12395
12396 static int lfs_pcc_attach_fid(int argc, char **argv)
12397 {
12398         struct option long_opts[] = {
12399         { .val = 'h',   .name = "help", .has_arg = no_argument },
12400         { .val = 'i',   .name = "id",   .has_arg = required_argument },
12401         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
12402         { .name = NULL } };
12403         int c;
12404         int rc = 0;
12405         __u32 archive_id = 0;
12406         char *end;
12407         const char *mntpath = NULL;
12408         const char *fidstr;
12409         enum lu_pcc_type type = LU_PCC_READWRITE;
12410
12411         optind = 0;
12412         while ((c = getopt_long(argc, argv, "hi:m:",
12413                                 long_opts, NULL)) != -1) {
12414                 switch (c) {
12415                 case 'i':
12416                         errno = 0;
12417                         archive_id = strtoul(optarg, &end, 0);
12418                         if (errno != 0 || *end != '\0' ||
12419                             archive_id > UINT32_MAX) {
12420                                 fprintf(stderr,
12421                                         "error: %s: bad archive ID '%s'\n",
12422                                         argv[0], optarg);
12423                                 return CMD_HELP;
12424                         }
12425                         break;
12426                 case 'm':
12427                         mntpath = optarg;
12428                         break;
12429                 default:
12430                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12431                                 progname, argv[optind - 1]);
12432                         fallthrough;
12433                 case 'h':
12434                         return CMD_HELP;
12435                 }
12436         }
12437
12438         if (archive_id == 0) {
12439                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
12440                 return CMD_HELP;
12441         }
12442
12443         if (!mntpath) {
12444                 fprintf(stderr, "%s: must specify Lustre mount point\n",
12445                         argv[0]);
12446                 return CMD_HELP;
12447         }
12448
12449         if (argc <= optind) {
12450                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
12451                 return CMD_HELP;
12452         }
12453
12454         while (optind < argc) {
12455                 int rc2;
12456
12457                 fidstr = argv[optind++];
12458
12459                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
12460                                                archive_id, type);
12461                 if (rc2 < 0) {
12462                         fprintf(stderr,
12463                                 "%s: cannot attach '%s' on '%s' to PCC with archive ID '%u': %s\n",
12464                                 argv[0], fidstr, mntpath, archive_id,
12465                                 strerror(rc2));
12466                 }
12467                 if (rc == 0 && rc2 < 0)
12468                         rc = rc2;
12469         }
12470         return rc;
12471 }
12472
12473 static int lfs_pcc_detach(int argc, char **argv)
12474 {
12475         struct option long_opts[] = {
12476         { .val = 'h',   .name = "help", .has_arg = no_argument },
12477         { .val = 'k',   .name = "keep", .has_arg = no_argument },
12478         { .name = NULL } };
12479         int c;
12480         int rc = 0;
12481         const char *path;
12482         char fullpath[PATH_MAX];
12483         __u32 detach_opt = PCC_DETACH_OPT_UNCACHE;
12484
12485         optind = 0;
12486         while ((c = getopt_long(argc, argv, "hk",
12487                                 long_opts, NULL)) != -1) {
12488                 switch (c) {
12489                 case 'k':
12490                         detach_opt = PCC_DETACH_OPT_NONE;
12491                         break;
12492                 default:
12493                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12494                                 progname, argv[optind - 1]);
12495                         fallthrough;
12496                 case 'h':
12497                         return CMD_HELP;
12498                 }
12499         }
12500
12501         while (optind < argc) {
12502                 int rc2;
12503
12504                 path = argv[optind++];
12505                 if (!realpath(path, fullpath)) {
12506                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12507                                 argv[0], path, strerror(errno));
12508                         if (rc == 0)
12509                                 rc = -EINVAL;
12510                         continue;
12511                 }
12512
12513                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
12514                 if (rc2 < 0) {
12515                         rc2 = -errno;
12516                         fprintf(stderr,
12517                                 "%s: cannot detach '%s' from PCC: %s\n",
12518                                 argv[0], path, strerror(errno));
12519                         if (rc == 0)
12520                                 rc = rc2;
12521                 }
12522         }
12523         return rc;
12524 }
12525
12526 static int lfs_pcc_detach_fid(int argc, char **argv)
12527 {
12528         struct option long_opts[] = {
12529         { .val = 'h',   .name = "help", .has_arg = no_argument },
12530         { .val = 'k',   .name = "keep", .has_arg = no_argument },
12531         { .name = NULL } };
12532         int c;
12533         int rc = 0;
12534         const char *fid;
12535         const char *mntpath;
12536         __u32 detach_opt = PCC_DETACH_OPT_UNCACHE;
12537
12538         optind = 0;
12539         while ((c = getopt_long(argc, argv, "hk",
12540                                 long_opts, NULL)) != -1) {
12541                 switch (c) {
12542                 case 'k':
12543                         detach_opt = PCC_DETACH_OPT_NONE;
12544                         break;
12545                 default:
12546                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12547                                 progname, argv[optind - 1]);
12548                         fallthrough;
12549                 case 'h':
12550                         return CMD_HELP;
12551                 }
12552         }
12553
12554         mntpath = argv[optind++];
12555
12556         while (optind < argc) {
12557                 int rc2;
12558
12559                 fid = argv[optind++];
12560
12561                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
12562                 if (rc2 < 0) {
12563                         fprintf(stderr,
12564                                 "%s: cannot detach '%s' on '%s' from PCC: %s\n",
12565                                 argv[0], fid, mntpath, strerror(-rc2));
12566                         if (rc == 0)
12567                                 rc = rc2;
12568                 }
12569         }
12570         return rc;
12571 }
12572
12573 static int lfs_pcc_state(int argc, char **argv)
12574 {
12575         int rc = 0;
12576         const char *path;
12577         char fullpath[PATH_MAX];
12578         struct lu_pcc_state state;
12579
12580         optind = 1;
12581
12582         if (argc <= 1) {
12583                 fprintf(stderr, "%s: must specify one or more file names\n",
12584                         progname);
12585                 return CMD_HELP;
12586         }
12587
12588         while (optind < argc) {
12589                 int rc2;
12590
12591                 path = argv[optind++];
12592                 if (!realpath(path, fullpath)) {
12593                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12594                                 argv[0], path, strerror(errno));
12595                         if (rc == 0)
12596                                 rc = -EINVAL;
12597                         continue;
12598                 }
12599
12600                 rc2 = llapi_pcc_state_get(fullpath, &state);
12601                 if (rc2 < 0) {
12602                         if (rc == 0)
12603                                 rc = rc2;
12604                         fprintf(stderr,
12605                                 "%s: cannot get PCC state of '%s': %s\n",
12606                                 argv[0], path, strerror(-rc2));
12607                         continue;
12608                 }
12609
12610                 printf("file: %s", path);
12611                 printf(", type: %s", pcc_type2string(state.pccs_type));
12612                 if (state.pccs_type == LU_PCC_NONE &&
12613                     state.pccs_open_count == 0) {
12614                         printf("\n");
12615                         continue;
12616                 }
12617
12618                 printf(", PCC file: %s", state.pccs_path);
12619                 printf(", user number: %u", state.pccs_open_count);
12620                 printf(", flags: %x", state.pccs_flags);
12621                 printf("\n");
12622         }
12623         return rc;
12624 }
12625
12626 /**
12627  * lfs_pcc_list_commands() - List lfs pcc commands.
12628  * @argc: The count of command line arguments.
12629  * @argv: Array of strings for command line arguments.
12630  *
12631  * This function lists lfs pcc commands defined in pcc_cmdlist[].
12632  *
12633  * Return: 0 on success.
12634  */
12635 static int lfs_pcc_list_commands(int argc, char **argv)
12636 {
12637         char buffer[81] = "";
12638
12639         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
12640                              NULL, 0, 4);
12641
12642         return 0;
12643 }
12644
12645 /**
12646  * lfs_pcc() - Parse and execute lfs pcc commands.
12647  * @argc: The count of lfs pcc command line arguments.
12648  * @argv: Array of strings for lfs pcc command line arguments.
12649  *
12650  * This function parses lfs pcc commands and performs the
12651  * corresponding functions specified in pcc_cmdlist[].
12652  *
12653  * Return: 0 on success or an error code on failure.
12654  */
12655 static int lfs_pcc(int argc, char **argv)
12656 {
12657         char cmd[PATH_MAX];
12658         int rc = 0;
12659
12660         setlinebuf(stdout);
12661
12662         Parser_init("lfs-pcc > ", pcc_cmdlist);
12663
12664         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12665         progname = cmd;
12666         program_invocation_short_name = cmd;
12667         if (argc > 1)
12668                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
12669         else
12670                 rc = Parser_commands();
12671
12672         return rc < 0 ? -rc : rc;
12673 }
12674
12675 static int lfs_list_commands(int argc, char **argv)
12676 {
12677         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
12678
12679         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
12680
12681         return 0;
12682 }
12683
12684 int main(int argc, char **argv)
12685 {
12686         int rc;
12687
12688         /* Ensure that liblustreapi constructor has run */
12689         if (!llapi_liblustreapi_initialized())
12690                 fprintf(stderr, "liblustreapi was not properly initialized\n");
12691
12692         setlinebuf(stdout);
12693         opterr = 0;
12694
12695         Parser_init("lfs > ", cmdlist);
12696
12697         progname = program_invocation_short_name; /* Used in error messages */
12698         if (argc > 1) {
12699                 llapi_set_command_name(argv[1]);
12700                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
12701                 llapi_clear_command_name();
12702         } else {
12703                 rc = Parser_commands();
12704         }
12705
12706         return rc < 0 ? -rc : rc;
12707 }
12708
12709 #ifdef _LUSTRE_IDL_H_
12710 /* Everything we need here should be included by lustreapi.h. */
12711 # error "lfs should not depend on lustre_idl.h"
12712 #endif /* _LUSTRE_IDL_H_ */