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\n"
 448          "       setquota {-u|-g|-p} --delete FILESYSTEM\n"},
 449         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 450          "usage: quota [-q] [-v] [-h] [-o OBD_UUID|-i MDT_IDX|-I OST_IDX]\n"
 451          "             [{-u|-g|-p} UNAME|UID|GNAME|GID|PROJID]\n"
 452          "             [--pool <OST pool name>] <filesystem>\n"
 453          "       quota -t <-u|-g|-p> [--pool <OST pool name>] <filesystem>\n"
 454          "       quota [-q] [-v] [h] {-U|-G|-P} [--pool <OST pool name>] <filesystem>"},
 455         {"project", lfs_project, 0,
 456          "Change or list project attribute for specified file or directory.\n"
 457          "usage: project [-d|-r] <file|directory...>\n"
 458          "         list project ID and flags on file(s) or directories\n"
 459          "       project [-p id] [-s] [-r] <file|directory...>\n"
 460          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 461          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 462          "         check project ID and flags on file(s) or directories, print outliers\n"
 463          "       project -C [-r] [-k] <file|directory...>\n"
 464          "         clear the project inherit flag and ID on the file or directory\n"
 465         },
 466 #endif
 467         {"flushctx", lfs_flushctx, 0,
 468          "Flush security context for current user.\n"
 469          "usage: flushctx [-k] [-r] [mountpoint...]"},
 470         {"changelog", lfs_changelog, 0,
 471          "Show the metadata changes on an MDT."
 472          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 473         {"changelog_clear", lfs_changelog_clear, 0,
 474          "Indicate that old changelog records up to <endrec> are no longer of "
 475          "interest to consumer <id>, allowing the system to free up space.\n"
 476          "An <endrec> of 0 means all records.\n"
 477          "usage: changelog_clear <mdtname> <id> <endrec>"},
 478         {"fid2path", lfs_fid2path, 0,
 479          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 480          "specify link number <linkno>.\n"
 481          "usage: fid2path [--print-fid|-f] [--print-link|-c] [--link|-l <linkno>] "
 482          "<fsname|root> <fid>..."},
 483         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 484          "usage: path2fid [--parents] <path> ..."},
 485         {"rmfid", lfs_rmfid, 0, "Remove file(s) by FID(s)\n"
 486          "usage: rmfid <fsname|rootpath> <fid> ..."},
 487         {"data_version", lfs_data_version, 0, "Display file data version for "
 488          "a given path.\n" "usage: data_version [-n|-r|-w] <path>"},
 489         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 490          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 491         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 492          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 493          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 494         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 495          "files.\n"
 496          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 497          "[--archived] [--lost] <file> ..."},
 498         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 499          "given files.\n" "usage: hsm_action <file> ..."},
 500         {"hsm_archive", lfs_hsm_archive, 0,
 501          "Archive file to external storage.\n"
 502          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 503          "<file> ..."},
 504         {"hsm_restore", lfs_hsm_restore, 0,
 505          "Restore file from external storage.\n"
 506          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 507         {"hsm_release", lfs_hsm_release, 0,
 508          "Release files from Lustre.\n"
 509          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 510         {"hsm_remove", lfs_hsm_remove, 0,
 511          "Remove file copy from external storage.\n"
 512          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 513          "[--archive NUM]\n"
 514          "                  (FILE [FILE ...] | "
 515          "--mntpath MOUNTPATH FID [FID ...])\n"
 516          "\n"
 517          "Note: To remove an archived copy of a file already deleted from a "
 518          "Lustre FS, the\n"
 519          "--mntpath option and a list of FIDs must be specified"
 520         },
 521         {"hsm_cancel", lfs_hsm_cancel, 0,
 522          "Cancel requests related to specified files.\n"
 523          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 524         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 525          "usage: swap_layouts <path1> <path2>"},
 526         {"migrate", lfs_setstripe_migrate, 0,
 527          "migrate directories and their inodes between MDTs.\n"
 528          "usage: migrate [--mdt-count|-c STRIPE_COUNT] [--directory|-d]\n"
 529          "               [--mdt-hash|-H HASH_TYPE]\n"
 530          "               [--mdt-index|-m START_MDT_INDEX] [--verbose|-v]\n"
 531          "               DIRECTORY\n"
 532          "\n"
 533          "migrate file objects from one OST layout to another\n"
 534          "(may be not safe with concurent writes).\n"
 535          MIGRATE_USAGE },
 536         {"mv", lfs_mv, 0,
 537          "To move directories between MDTs. This command is deprecated, "
 538          "use \"migrate\" instead.\n"
 539          "usage: mv <directory|filename> [--mdt-index|-m MDT_INDEX] "
 540          "[--verbose|-v]\n"},
 541         {"ladvise", lfs_ladvise, 0,
 542          "Provide servers with advice about access patterns for a file.\n"
 543          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 544          "               [--background|-b] [--unset|-u]\n\n"
 545          "               {--end|-e END[kMGT]|--length|-l LENGTH[kMGT]}\n"
 546          "               {[--mode|-m [READ,WRITE]}\n"
 547          "               <file> ...\n"},
 548         {"mirror", lfs_mirror, mirror_cmdlist,
 549          "lfs commands used to manage files with mirrored components:\n"
 550          "lfs mirror create - create a mirrored file or directory\n"
 551          "lfs mirror extend - add mirror(s) to an existing file\n"
 552          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 553          "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
 554          "lfs mirror read   - read a mirror content of a mirrored file\n"
 555          "lfs mirror write  - write to a mirror of a mirrored file\n"
 556          "lfs mirror copy   - copy a mirror to other mirror(s) of a file\n"
 557          "lfs mirror verify - verify mirrored file(s)\n"},
 558         {"getsom", lfs_getsom, 0, "To list the SOM info for a given file.\n"
 559          "usage: getsom [-s] [-b] [-f] <path>\n"
 560          "\t-s: Only show the size value of the SOM data for a given file\n"
 561          "\t-b: Only show the blocks value of the SOM data for a given file\n"
 562          "\t-f: Only show the flags value of the SOM data for a given file\n"},
 563         {"heat_get", lfs_heat_get, 0,
 564          "To get heat of files.\n"
 565          "usage: heat_get <file> ...\n"},
 566         {"heat_set", lfs_heat_set, 0,
 567          "To set heat flags of files.\n"
 568          "usage: heat_set [--clear|-c] [--off|-o] [--on|-O] <file> ...\n"
 569          "\t--clear|-c: Clear file heat for given files\n"
 570          "\t--off|-o:   Turn off file heat for given files\n"
 571          "\t--on|-O:    Turn on file heat for given files\n"},
 572         {"pcc", lfs_pcc, pcc_cmdlist,
 573          "lfs commands used to interact with PCC features:\n"
 574          "lfs pcc attach - attach given files to Persistent Client Cache\n"
 575          "lfs pcc attach_fid - attach given files into PCC by FID(s)\n"
 576          "lfs pcc state  - display the PCC state for given files\n"
 577          "lfs pcc detach - detach given files from Persistent Client Cache\n"
 578          "lfs pcc detach_fid - detach given files from PCC by FID(s)\n"},
 579         {"help", Parser_help, 0, "help"},
 580         {"exit", Parser_quit, 0, "quit"},
 581         {"quit", Parser_quit, 0, "quit"},
 582         {"--version", Parser_version, 0,
 583          "output build version of the utility and exit"},
 584         {"--list-commands", lfs_list_commands, 0,
 585          "list commands supported by the utility and exit"},
 586         { 0, 0, 0, NULL }
 587 };
 588
 589 static int check_hashtype(const char *hashtype)
 590 {
 591         int type_num = atoi(hashtype);
 592         int i;
 593
 594         /* numeric hash type */
 595         if (hashtype && lmv_is_known_hash_type(type_num))
 596                 return type_num;
 597         /* string hash type */
 598         for (i = LMV_HASH_TYPE_ALL_CHARS; i < ARRAY_SIZE(mdt_hash_name); 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(layout, 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                 {"bad_type", LMV_HASH_FLAG_BAD_TYPE},
1374                 {"badtype", LMV_HASH_FLAG_BAD_TYPE},
1375                 {"lost_lmv", LMV_HASH_FLAG_LOST_LMV},
1376                 {"lostlmv", LMV_HASH_FLAG_LOST_LMV},
1377         };
1378
1379         if (string == NULL)
1380                 return -EINVAL;
1381
1382         *inflags = 0;
1383         *exflags = 0;
1384         *type = 0;
1385         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1386                 bool found = false;
1387                 int i;
1388
1389                 for (i = 0; i < ARRAY_SIZE(mhflist); i++) {
1390                         if (strcmp(name, mhflist[i].name) == 0 ||
1391                             name[0] == mhflist[i].name[0]) {
1392                                 *inflags |= mhflist[i].flag;
1393                                 found = true;
1394                         } else if (name[0] == '^' &&
1395                                    (strcmp(name + 1, mhflist[i].name) == 0 ||
1396                                     name[1] == mhflist[i].name[0])) {
1397                                 *exflags |= mhflist[i].flag;
1398                                 found = true;
1399                         }
1400                 }
1401                 if (!found) {
1402                         i = check_hashtype(name);
1403                         if (i > 0) {
1404                                 *type |= 1 << i;
1405                                 continue;
1406                         }
1407                         llapi_printf(LLAPI_MSG_ERROR,
1408                                      "%s: invalid mdt_hash value '%s'\n",
1409                                      progname, name);
1410                         return -EINVAL;
1411                 }
1412         }
1413
1414         /* don't allow to include and exclude the same flag */
1415         if (*inflags & *exflags) {
1416                 llapi_printf(LLAPI_MSG_ERROR,
1417                              "%s: include and exclude same flag '%s'\n",
1418                              progname, string);
1419                 return -EINVAL;
1420         }
1421
1422         return 0;
1423 }
1424
1425 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1426 {
1427         if (!string)
1428                 return -EINVAL;
1429
1430         *state = 0;
1431         *neg_state = 0;
1432
1433         if (strncmp(string, "^", 1) == 0) {
1434                 *neg_state = llapi_layout_string_flags(string + 1);
1435                 if (*neg_state != 0)
1436                         return 0;
1437         } else {
1438                 *state = llapi_layout_string_flags(string);
1439                 if (*state != 0)
1440                         return 0;
1441         }
1442
1443         llapi_printf(LLAPI_MSG_ERROR,
1444                      "%s: mirrored file state '%s' not supported\n",
1445                      progname, string);
1446         return -EINVAL;
1447 }
1448
1449 /**
1450  * struct mirror_args - Command-line arguments for mirror(s).
1451  * @m_count:  Number of mirrors to be created with this layout.
1452  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1453  * @m_layout: Mirror layout.
1454  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1455  * @m_next:   Point to the next node of the list.
1456  *
1457  * Command-line arguments for mirror(s) will be parsed and stored in
1458  * a linked list that consists of this structure.
1459  */
1460 struct mirror_args {
1461         __u32                   m_count;
1462         __u32                   m_flags;
1463         struct llapi_layout     *m_layout;
1464         const char              *m_file;
1465         struct mirror_args      *m_next;
1466         bool                    m_inherit;
1467 };
1468
1469 /**
1470  * enum mirror_flags - Flags for extending a mirrored file.
1471  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1472  *             in case the victim file(s) contains the same data as the
1473  *             original mirrored file.
1474  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1475  * @MF_COMP_ID: specified component id instead of mirror id
1476  *
1477  * Flags for extending a mirrored file.
1478  */
1479 enum mirror_flags {
1480         MF_NO_VERIFY    = 0x1,
1481         MF_DESTROY      = 0x2,
1482         MF_COMP_ID      = 0x4,
1483         MF_COMP_POOL    = 0x8,
1484 };
1485
1486 /**
1487  * mirror_create_sanity_check() - Check mirror list.
1488  * @list:  A linked list that stores the mirror arguments.
1489  *
1490  * This function does a sanity check on @list for creating
1491  * a mirrored file.
1492  *
1493  * Return: 0 on success or a negative error code on failure.
1494  */
1495 static int mirror_create_sanity_check(const char *fname,
1496                                       struct mirror_args *list,
1497                                       bool check_fname)
1498 {
1499         int rc = 0;
1500         bool has_m_file = false;
1501         bool has_m_layout = false;
1502
1503         if (!list)
1504                 return -EINVAL;
1505
1506         if (fname && check_fname) {
1507                 struct llapi_layout *layout;
1508
1509                 layout = llapi_layout_get_by_path(fname, 0);
1510                 if (!layout) {
1511                         fprintf(stderr,
1512                                 "error: %s: file '%s' couldn't get layout\n",
1513                                 progname, fname);
1514                         return -ENODATA;
1515                 }
1516
1517                 rc = llapi_layout_sanity(layout, false, true);
1518
1519                 llapi_layout_free(layout);
1520
1521                 if (rc) {
1522                         llapi_layout_sanity_perror(rc);
1523                         return rc;
1524                 }
1525         }
1526
1527         while (list) {
1528                 if (list->m_file) {
1529                         has_m_file = true;
1530                         llapi_layout_free(list->m_layout);
1531
1532                         list->m_layout =
1533                                 llapi_layout_get_by_path(list->m_file, 0);
1534                         if (!list->m_layout) {
1535                                 fprintf(stderr,
1536                                         "error: %s: file '%s' has no layout\n",
1537                                         progname, list->m_file);
1538                                 return -ENODATA;
1539                         }
1540                 } else {
1541                         has_m_layout = true;
1542                         if (!list->m_layout) {
1543                                 fprintf(stderr, "error: %s: no mirror layout\n",
1544                                         progname);
1545                                 return -EINVAL;
1546                         }
1547                 }
1548
1549                 rc = llapi_layout_sanity(list->m_layout, 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(layout, 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 || rc == -EBUSY) && 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_SETQUOTA_DELETE = 1,
3336         LFS_POOL_OPT = 3,
3337         LFS_COMP_COUNT_OPT,
3338         LFS_COMP_START_OPT,
3339         LFS_COMP_FLAGS_OPT,
3340         LFS_COMP_DEL_OPT,
3341         LFS_COMP_SET_OPT,
3342         LFS_COMP_ADD_OPT,
3343         LFS_COMP_NO_VERIFY_OPT,
3344         LFS_PROJID_OPT,
3345         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
3346         LFS_MIRROR_ID_OPT,
3347         LFS_MIRROR_STATE_OPT,
3348         LFS_LAYOUT_COPY,
3349         LFS_MIRROR_INDEX_OPT,
3350         LFS_LAYOUT_FOREIGN_OPT,
3351         LFS_MODE_OPT,
3352         LFS_NEWERXY_OPT,
3353         LFS_INHERIT_RR_OPT,
3354         LFS_FIND_PERM,
3355         LFS_PRINTF_OPT,
3356 };
3357
3358 #ifndef LCME_USER_MIRROR_FLAGS
3359 /* The mirror flags can be set by users at creation time. */
3360 #define LCME_USER_MIRROR_FLAGS  (LCME_FL_PREF_RW)
3361 #endif
3362
3363 /* functions */
3364 static int lfs_setstripe_internal(int argc, char **argv,
3365                                   enum setstripe_origin opc)
3366 {
3367         struct lfs_setstripe_args        lsa = { 0 };
3368         struct llapi_stripe_param       *param = NULL;
3369         struct find_param                migrate_mdt_param = {
3370                 .fp_max_depth = -1,
3371                 .fp_mdt_index = -1,
3372         };
3373         char                            *fname;
3374         int                              result = 0;
3375         int                              result2 = 0;
3376         char                            *end;
3377         int                              c;
3378         int                              delete = 0;
3379         unsigned long long               size_units = 1;
3380         bool                             migrate_mode = false;
3381         bool                             migrate_mdt_mode = false;
3382         bool                             setstripe_mode = false;
3383         bool                             migration_block = false;
3384         __u64                            migration_flags = 0;
3385         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
3386         int                              comp_del = 0, comp_set = 0;
3387         int                              comp_add = 0;
3388         __u32                            comp_id = 0;
3389         struct llapi_layout             *layout = NULL;
3390         struct llapi_layout             **lpp = &layout;
3391         bool                             mirror_mode = false;
3392         bool                             has_m_file = false;
3393         __u32                            mirror_count = 0;
3394         enum mirror_flags                mirror_flags = 0;
3395         struct mirror_args              *mirror_list = NULL;
3396         struct mirror_args              *new_mirror = NULL;
3397         struct mirror_args              *last_mirror = NULL;
3398         __u16                            mirror_id = 0;
3399         char                             cmd[PATH_MAX];
3400         bool from_yaml = false;
3401         bool from_copy = false;
3402         char *template = NULL;
3403         bool foreign_mode = false;
3404         char *xattr = NULL;
3405         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
3406         char *mode_opt = NULL;
3407         mode_t previous_umask = 0;
3408         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
3409
3410         struct option long_opts[] = {
3411 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
3412 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3413         /* --block is only valid in migrate mode */
3414         { .val = 'b',   .name = "block",        .has_arg = no_argument },
3415 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
3416         { .val = LFS_COMP_ADD_OPT,
3417                         .name = "comp-add",     .has_arg = no_argument },
3418         { .val = LFS_COMP_ADD_OPT,
3419                         .name = "component-add", .has_arg = no_argument },
3420         { .val = LFS_COMP_DEL_OPT,
3421                         .name = "comp-del",     .has_arg = no_argument },
3422         { .val = LFS_COMP_DEL_OPT,
3423                         .name = "component-del", .has_arg = no_argument },
3424         { .val = LFS_COMP_FLAGS_OPT,
3425                         .name = "comp-flags",   .has_arg = required_argument },
3426         { .val = LFS_COMP_FLAGS_OPT,
3427                         .name = "component-flags",
3428                                                 .has_arg = required_argument },
3429         { .val = LFS_COMP_SET_OPT,
3430                         .name = "comp-set",     .has_arg = no_argument },
3431         { .val = LFS_COMP_SET_OPT,
3432                         .name = "component-set",
3433                                                 .has_arg = no_argument},
3434         { .val = LFS_COMP_NO_VERIFY_OPT,
3435                         .name = "no-verify",    .has_arg = no_argument},
3436         { .val = LFS_LAYOUT_FLAGS_OPT,
3437                         .name = "flags",        .has_arg = required_argument},
3438         { .val = LFS_LAYOUT_FOREIGN_OPT,
3439                         .name = "foreign",      .has_arg = optional_argument},
3440         { .val = LFS_MIRROR_ID_OPT,
3441                         .name = "mirror-id",    .has_arg = required_argument},
3442         { .val = LFS_MODE_OPT,
3443                         .name = "mode",         .has_arg = required_argument},
3444         { .val = LFS_LAYOUT_COPY,
3445                         .name = "copy",         .has_arg = required_argument},
3446         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
3447         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
3448         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
3449         { .val = 'C',   .name = "overstripe-count",
3450                                                 .has_arg = required_argument},
3451         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
3452         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
3453         /* used with "lfs migrate -m" */
3454         { .val = 'd',   .name = "directory",    .has_arg = no_argument},
3455         /* --non-direct is only valid in migrate mode */
3456         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
3457         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
3458         { .val = 'E',   .name = "component-end",
3459                                                 .has_arg = required_argument},
3460         { .val = 'f',   .name = "file",         .has_arg = required_argument },
3461 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3462 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
3463 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3464         { .val = 'h',   .name = "help",         .has_arg = no_argument },
3465         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
3466         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
3467         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
3468         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
3469         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
3470 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
3471         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3472         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
3473         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
3474         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
3475         /* --non-block is only valid in migrate mode */
3476         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
3477         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
3478         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
3479 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3480         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
3481         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
3482 #endif
3483         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3484 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3485 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3486 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3487         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3488         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3489 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3490 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3491 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3492 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3493         /* --verbose is only valid in migrate mode */
3494         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
3495         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
3496 /* dirstripe { .val = 'X',.name = "max-inherit",.has_arg = required_argument }*/
3497         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
3498         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument},
3499         { .val = 'z',   .name = "extension-size", .has_arg = required_argument},
3500         { .name = NULL } };
3501
3502         setstripe_args_init(&lsa);
3503
3504         migrate_mode = (opc == SO_MIGRATE);
3505         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
3506         setstripe_mode = (opc == SO_SETSTRIPE);
3507         if (opc == SO_MIRROR_DELETE) {
3508                 delete = 1;
3509                 mirror_flags = MF_DESTROY;
3510         }
3511
3512         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
3513         progname = cmd;
3514         while ((c = getopt_long(argc, argv,
3515                                 "bc:C:dDE:f:hH:i:I:m:N::no:p:L:s:S:vx:y:z:",
3516                                 long_opts, NULL)) >= 0) {
3517                 size_units = 1;
3518                 switch (c) {
3519                 case 0:
3520                         /* Long options. */
3521                         break;
3522                 case LFS_COMP_ADD_OPT:
3523                         comp_add = 1;
3524                         break;
3525                 case LFS_COMP_DEL_OPT:
3526                         comp_del = 1;
3527                         break;
3528                 case LFS_COMP_FLAGS_OPT:
3529                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
3530                                                 &lsa.lsa_comp_neg_flags);
3531                         if (result != 0)
3532                                 goto usage_error;
3533                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
3534                                 fprintf(stderr,
3535                                         "%s: inverted flags are not supported\n",
3536                                         progname);
3537                                 goto usage_error;
3538                         }
3539                         break;
3540                 case LFS_COMP_SET_OPT:
3541                         comp_set = 1;
3542                         break;
3543                 case LFS_COMP_NO_VERIFY_OPT:
3544                         mirror_flags |= MF_NO_VERIFY;
3545                         break;
3546                 case LFS_MIRROR_ID_OPT: {
3547                         unsigned long int id;
3548
3549                         errno = 0;
3550                         id = strtoul(optarg, &end, 0);
3551                         if (errno != 0 || *end != '\0' || id == 0 ||
3552                             id > UINT16_MAX) {
3553                                 fprintf(stderr,
3554                                         "%s %s: invalid mirror ID '%s'\n",
3555                                         progname, argv[0], optarg);
3556                                 goto usage_error;
3557                         }
3558
3559                         mirror_id = (__u16)id;
3560                         break;
3561                 }
3562                 case LFS_LAYOUT_FLAGS_OPT: {
3563                         uint32_t neg_flags;
3564
3565                         /* check for numeric flags (foreign and mirror cases) */
3566                         if (setstripe_mode && !mirror_mode && !last_mirror) {
3567                                 errno = 0;
3568                                 flags = strtoul(optarg, &end, 16);
3569                                 if (errno != 0 || *end != '\0' ||
3570                                     flags >= UINT32_MAX) {
3571                                         fprintf(stderr,
3572                                                 "%s %s: invalid hex flags '%s'\n",
3573                                                 progname, argv[0], optarg);
3574                                         return CMD_HELP;
3575                                 }
3576                                 if (!foreign_mode) {
3577                                         fprintf(stderr,
3578                                                 "%s %s: hex flags must be specified with --foreign option\n",
3579                                                 progname, argv[0]);
3580                                         return CMD_HELP;
3581                                 }
3582                                 break;
3583                         }
3584
3585                         if (!mirror_mode || !last_mirror) {
3586                                 fprintf(stderr,
3587                                         "error: %s: --flags must be specified with --mirror-count|-N option\n",
3588                                         progname);
3589                                 goto usage_error;
3590                         }
3591
3592                         result = comp_str2flags(optarg, &last_mirror->m_flags,
3593                                                 &neg_flags);
3594                         if (result != 0)
3595                                 goto usage_error;
3596
3597                         if (neg_flags) {
3598                                 fprintf(stderr,
3599                                         "%s: inverted flags are not supported\n",
3600                                         progname);
3601                                 result = -EINVAL;
3602                                 goto usage_error;
3603                         }
3604                         if (last_mirror->m_flags & ~LCME_USER_MIRROR_FLAGS) {
3605                                 fprintf(stderr,
3606                                         "%s: unsupported mirror flags: %s\n",
3607                                         progname, optarg);
3608                                 result = -EINVAL;
3609                                 goto error;
3610                         }
3611                         break;
3612                 }
3613                 case LFS_LAYOUT_FOREIGN_OPT:
3614                         if (optarg) {
3615                                 /* check pure numeric */
3616                                 type = strtoul(optarg, &end, 0);
3617                                 if (*end) {
3618                                         /* check name */
3619                                         type = check_foreign_type_name(optarg);
3620                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
3621                                                 fprintf(stderr,
3622                                                         "%s %s: unrecognized foreign type '%s'\n",
3623                                                         progname, argv[0],
3624                                                         optarg);
3625                                                 return CMD_HELP;
3626                                         }
3627                                 } else if (type >= UINT32_MAX) {
3628                                         fprintf(stderr,
3629                                                 "%s %s: invalid foreign type '%s'\n",
3630                                                 progname, argv[0], optarg);
3631                                         return CMD_HELP;
3632                                 }
3633                         }
3634                         foreign_mode = true;
3635                         break;
3636                 case LFS_MODE_OPT:
3637                         mode_opt = optarg;
3638                         if (mode_opt) {
3639                                 mode = strtoul(mode_opt, &end, 8);
3640                                 if (*end != '\0') {
3641                                         fprintf(stderr,
3642                                                 "%s %s: bad mode '%s'\n",
3643                                                 progname, argv[0], mode_opt);
3644                                         return CMD_HELP;
3645                                 }
3646                                 previous_umask = umask(0);
3647                         }
3648                         break;
3649                 case LFS_LAYOUT_COPY:
3650                         from_copy = true;
3651                         template = optarg;
3652                         break;
3653                 case 'b':
3654                         if (!migrate_mode) {
3655                                 fprintf(stderr,
3656                                         "%s %s: -b|--block valid only for migrate command\n",
3657                                         progname, argv[0]);
3658                                 goto usage_error;
3659                         }
3660                         migration_block = true;
3661                         break;
3662                 case 'C':
3663                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3664                                 fprintf(stderr,
3665                                         "%s %s: -C|--overstripe-count incompatible with DoM layout\n",
3666                                         progname, argv[0]);
3667                                 goto usage_error;
3668                         }
3669                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3670                         fallthrough;
3671                 case 'c':
3672                         errno = 0;
3673                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3674                         if (errno != 0 || *end != '\0'|| optarg == end ||
3675                             lsa.lsa_stripe_count < -1 ||
3676                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
3677                                 fprintf(stderr,
3678                                         "%s %s: invalid stripe count '%s'\n",
3679                                         progname, argv[0], optarg);
3680                                 goto usage_error;
3681                         }
3682
3683                         if (lsa.lsa_stripe_count == -1)
3684                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
3685                         break;
3686                 case 'd':
3687                         if (migrate_mode) {
3688                                 migrate_mdt_param.fp_max_depth = 1;
3689                         } else {
3690                                 /* delete the default striping pattern */
3691                                 delete = 1;
3692                                 if (opc == SO_MIRROR_SPLIT) {
3693                                         if (has_m_file) {
3694                                                 fprintf(stderr,
3695                                                       "%s %s: -d cannot used with -f\n",
3696                                                         progname, argv[0]);
3697                                                 goto usage_error;
3698                                         }
3699                                         mirror_flags |= MF_DESTROY;
3700                                 }
3701                         }
3702                         break;
3703                 case 'D':
3704                         if (!migrate_mode) {
3705                                 fprintf(stderr,
3706                                         "%s %s: -D|--non-direct is valid only for migrate command\n",
3707                                         progname, argv[0]);
3708                                 goto usage_error;
3709                         }
3710                         migration_flags |= LLAPI_MIGRATION_NONDIRECT;
3711                         break;
3712                 case 'E':
3713                         if (lsa.lsa_comp_end != 0) {
3714                                 result = comp_args_to_layout(lpp, &lsa, true);
3715                                 if (result) {
3716                                         fprintf(stderr, "%s: invalid layout\n",
3717                                                 progname);
3718                                         goto usage_error;
3719                                 }
3720
3721                                 setstripe_args_init_inherit(&lsa);
3722                         }
3723
3724                         if (arg_is_eof(optarg)) {
3725                                 lsa.lsa_comp_end = LUSTRE_EOF;
3726                         } else {
3727                                 result = llapi_parse_size(optarg,
3728                                                           &lsa.lsa_comp_end,
3729                                                           &size_units, 0);
3730                                 /* assume units of KB if too small */
3731                                 if (lsa.lsa_comp_end < 4096)
3732                                         lsa.lsa_comp_end *= 1024;
3733                                 if (result ||
3734                                     lsa.lsa_comp_end & (LOV_MIN_STRIPE_SIZE - 1)) {
3735                                         fprintf(stderr,
3736                                                 "%s %s: invalid component end '%s'\n",
3737                                                 progname, argv[0], optarg);
3738                                         goto usage_error;
3739                                 }
3740                         }
3741                         break;
3742                 case 'H':
3743                         if (!migrate_mode) {
3744                                 fprintf(stderr,
3745                                         "--mdt-hash is valid only for migrate command\n");
3746                                 return CMD_HELP;
3747                         }
3748
3749                         lsa.lsa_pattern = check_hashtype(optarg);
3750                         if (lsa.lsa_pattern == 0) {
3751                                 fprintf(stderr,
3752                                         "%s %s: bad stripe hash type '%s'\n",
3753                                         progname, argv[0], optarg);
3754                                 return CMD_HELP;
3755                         }
3756                         break;
3757                 case 'i':
3758                         errno = 0;
3759                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3760                         if (errno != 0 || *end != '\0' || optarg == end ||
3761                             lsa.lsa_stripe_off < -1 ||
3762                             lsa.lsa_stripe_off > LOV_V1_INSANE_STRIPE_COUNT) {
3763                                 fprintf(stderr,
3764                                         "%s %s: invalid stripe offset '%s'\n",
3765                                         progname, argv[0], optarg);
3766                                 goto usage_error;
3767                         }
3768                         if (lsa.lsa_stripe_off == -1)
3769                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3770                         break;
3771                 case 'I':
3772                         comp_id = strtoul(optarg, &end, 0);
3773                         if (*end != '\0' || comp_id == 0 ||
3774                             comp_id > LCME_ID_MAX) {
3775                                 fprintf(stderr,
3776                                         "%s %s: invalid component ID '%s'\n",
3777                                         progname, argv[0], optarg);
3778                                 goto usage_error;
3779                         }
3780                         break;
3781                 case 'f':
3782                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3783                                 fprintf(stderr,
3784                                         "error: %s: invalid option: %s\n",
3785                                         progname, argv[optopt + 1]);
3786                                 goto usage_error;
3787                         }
3788                         if (opc == SO_MIRROR_EXTEND) {
3789                                 if (!last_mirror) {
3790                                         fprintf(stderr,
3791                                 "error: %s: '-N' must exist in front of '%s'\n",
3792                                                 progname, argv[optopt + 1]);
3793                                         goto usage_error;
3794                                 }
3795                                 last_mirror->m_file = optarg;
3796                                 last_mirror->m_count = 1;
3797                         } else {
3798                                 /* mirror split */
3799                                 if (!mirror_list)
3800                                         mirror_list = lfs_mirror_alloc();
3801                                 mirror_list->m_file = optarg;
3802                         }
3803                         has_m_file = true;
3804                         break;
3805                 case 'L':
3806                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3807                                 /* Can be only the first component */
3808                                 if (layout) {
3809                                         result = -EINVAL;
3810                                         fprintf(stderr,
3811                                                 "error: 'mdt' layout can be only the first one\n");
3812                                         goto error;
3813                                 }
3814                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3815                                         result = -EFBIG;
3816                                         fprintf(stderr,
3817                                                 "error: 'mdt' layout size is too big\n");
3818                                         goto error;
3819                                 }
3820                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3821                                 lsa.lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
3822                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3823                                 result = -EINVAL;
3824                                 fprintf(stderr,
3825                                         "error: layout '%s' is unknown, supported layouts are: 'mdt', 'raid0'\n",
3826                                         argv[optind]);
3827                                 goto error;
3828                         }
3829                         break;
3830                 case 'm':
3831                         if (!migrate_mode) {
3832                                 fprintf(stderr,
3833                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3834                                         progname, argv[0]);
3835                                 goto usage_error;
3836                         }
3837                         migrate_mdt_mode = true;
3838                         lsa.lsa_nr_tgts = parse_targets(tgts,
3839                                                 sizeof(tgts) / sizeof(__u32),
3840                                                 lsa.lsa_nr_tgts, optarg, NULL);
3841                         if (lsa.lsa_nr_tgts < 0) {
3842                                 fprintf(stderr,
3843                                         "%s: invalid MDT target(s) '%s'\n",
3844                                         progname, optarg);
3845                                 goto usage_error;
3846                         }
3847
3848                         lsa.lsa_tgts = tgts;
3849                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3850                                 lsa.lsa_stripe_off = tgts[0];
3851                         break;
3852                 case 'n':
3853                         if (!migrate_mode) {
3854                                 fprintf(stderr,
3855                                         "%s %s: -n|--non-block valid only for migrate command\n",
3856                                         progname, argv[0]);
3857                                 goto usage_error;
3858                         }
3859                         migration_flags |= LLAPI_MIGRATION_NONBLOCK;
3860                         break;
3861                 case 'N':
3862                         if (opc == SO_SETSTRIPE) {
3863                                 opc = SO_MIRROR_CREATE;
3864                                 mirror_mode = true;
3865                         }
3866                         mirror_count = 1;
3867                         if (optarg) {
3868                                 errno = 0;
3869                                 mirror_count = strtoul(optarg, &end, 0);
3870                                 if (errno != 0 || *end != '\0' ||
3871                                     mirror_count == 0 ||
3872                                     mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
3873                                         fprintf(stderr,
3874                                                 "error: %s: bad mirror count: %s\n",
3875                                                 progname, optarg);
3876                                         result = -EINVAL;
3877                                         goto error;
3878                                 }
3879                         }
3880
3881                         new_mirror = lfs_mirror_alloc();
3882                         new_mirror->m_count = mirror_count;
3883
3884                         if (!mirror_list)
3885                                 mirror_list = new_mirror;
3886
3887                         if (last_mirror) {
3888                                 /* wrap up last mirror */
3889                                 if (!setstripe_args_specified(&lsa))
3890                                         last_mirror->m_inherit = true;
3891                                 if (lsa.lsa_comp_end == 0)
3892                                         lsa.lsa_comp_end = LUSTRE_EOF;
3893
3894                                 result = comp_args_to_layout(lpp, &lsa, true);
3895                                 if (result) {
3896                                         lfs_mirror_free(new_mirror);
3897                                         goto error;
3898                                 }
3899
3900                                 setstripe_args_init_inherit(&lsa);
3901
3902                                 last_mirror->m_next = new_mirror;
3903                         }
3904
3905                         last_mirror = new_mirror;
3906                         lpp = &last_mirror->m_layout;
3907                         break;
3908                 case 'o':
3909 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3910                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
3911                                 fprintf(stderr,
3912                                         "warning: '--ost-list' is deprecated, use '--ost' instead\n");
3913 #endif
3914                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3915                                 fprintf(stderr,
3916                                         "%s %s: -o|--ost incompatible with DoM layout\n",
3917                                         progname, argv[0]);
3918                                 goto usage_error;
3919                         }
3920                         /*
3921                          * -o allows overstriping, and must note it because
3922                          * parse_targets is shared with MDT striping, which
3923                          * does not allow duplicates
3924                          */
3925                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3926                         lsa.lsa_nr_tgts = parse_targets(tgts,
3927                                                 sizeof(tgts) / sizeof(__u32),
3928                                                 lsa.lsa_nr_tgts, optarg,
3929                                                 &lsa.lsa_pattern);
3930                         if (lsa.lsa_nr_tgts < 0) {
3931                                 fprintf(stderr,
3932                                         "%s %s: invalid OST target(s) '%s'\n",
3933                                         progname, argv[0], optarg);
3934                                 goto usage_error;
3935                         }
3936
3937                         lsa.lsa_tgts = tgts;
3938                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3939                                 lsa.lsa_stripe_off = tgts[0];
3940                         break;
3941                 case 'p':
3942                         if (!optarg)
3943                                 goto usage_error;
3944                         lsa.lsa_pool_name = optarg;
3945
3946                         if (strlen(lsa.lsa_pool_name) == 0 ||
3947                             strncmp(lsa.lsa_pool_name, "none",
3948                                     LOV_MAXPOOLNAME) == 0)
3949                                 lsa.lsa_pool_name = NULL;
3950                         break;
3951                 case 'S':
3952                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3953                                                   &size_units, 0);
3954                         /* assume units of KB if too small to be valid */
3955                         if (lsa.lsa_stripe_size < 4096)
3956                                 lsa.lsa_stripe_size *= 1024;
3957                         if (result ||
3958                             lsa.lsa_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
3959                                 fprintf(stderr,
3960                                         "%s %s: invalid stripe size '%s'\n",
3961                                         progname, argv[0], optarg);
3962                                 goto usage_error;
3963                         }
3964                         break;
3965                 case 'v':
3966                         if (!migrate_mode) {
3967                                 fprintf(stderr,
3968                                         "%s %s: -v|--verbose valid only for migrate command\n",
3969                                         progname, argv[0]);
3970                                 goto usage_error;
3971                         }
3972                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3973                         migration_flags = LLAPI_MIGRATION_VERBOSE;
3974                         break;
3975                 case 'x':
3976                         xattr = optarg;
3977                         break;
3978                 case 'y':
3979                         from_yaml = true;
3980                         template = optarg;
3981                         break;
3982                 case 'z':
3983                         result = llapi_parse_size(optarg,
3984                                                   &lsa.lsa_extension_size,
3985                                                   &size_units, 0);
3986                         if (result) {
3987                                 fprintf(stderr,
3988                                         "%s %s: invalid extension size '%s'\n",
3989                                         progname, argv[0], optarg);
3990                                 goto usage_error;
3991                         }
3992
3993                         lsa.lsa_extension_comp = true;
3994                         break;
3995                 default:
3996                         fprintf(stderr, "%s: unrecognized option '%s'\n",
3997                                 progname, argv[optind - 1]);
3998                 case 'h':
3999                         goto usage_error;
4000                 }
4001         }
4002
4003         fname = argv[optind];
4004
4005         if (optind == argc) {
4006                 fprintf(stderr, "%s %s: FILE must be specified\n",
4007                         progname, argv[0]);
4008                 goto usage_error;
4009         }
4010
4011         /* lfs migrate $filename should keep the file's layout by default */
4012         if (migrate_mode && !layout && !from_yaml &&
4013             !setstripe_args_specified(&lsa) && !lsa.lsa_pool_name)
4014                 from_copy = true;
4015
4016         if (xattr && !foreign_mode) {
4017                 /*
4018                  * only print a warning as this is harmless and will be ignored
4019                  */
4020                 fprintf(stderr,
4021                         "%s %s: xattr has been specified for non-foreign layout\n",
4022                         progname, argv[0]);
4023         } else if (foreign_mode && !xattr) {
4024                 fprintf(stderr,
4025                         "%s %s: xattr must be provided in foreign mode\n",
4026                         progname, argv[0]);
4027                 goto usage_error;
4028         }
4029
4030         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
4031             comp_set || comp_id || delete || from_copy ||
4032             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
4033             lsa.lsa_tgts)) {
4034                 fprintf(stderr,
4035                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
4036                         progname, argv[0]);
4037                 return CMD_HELP;
4038         }
4039
4040         if (mirror_mode && mirror_count == 0) {
4041                 fprintf(stderr,
4042                         "error: %s: --mirror-count|-N option is required\n",
4043                         progname);
4044                 result = -EINVAL;
4045                 goto error;
4046         }
4047
4048         if (mirror_mode) {
4049                 if (!setstripe_args_specified(&lsa))
4050                         last_mirror->m_inherit = true;
4051                 if (lsa.lsa_comp_end == 0)
4052                         lsa.lsa_comp_end = LUSTRE_EOF;
4053         }
4054
4055         if (lsa.lsa_comp_end != 0) {
4056                 result = comp_args_to_layout(lpp, &lsa, true);
4057                 if (result) {
4058                         fprintf(stderr, "error: %s: invalid layout\n",
4059                                 progname);
4060                         result = -EINVAL;
4061                         goto error;
4062                 }
4063         }
4064
4065         if (mirror_flags & MF_NO_VERIFY) {
4066                 if (opc != SO_MIRROR_EXTEND) {
4067                         fprintf(stderr,
4068                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
4069                                 progname);
4070                         result = -EINVAL;
4071                         goto error;
4072                 } else if (!has_m_file) {
4073                         fprintf(stderr,
4074                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
4075                                 progname);
4076                         result = -EINVAL;
4077                         goto error;
4078                 }
4079         }
4080
4081         if (comp_set && !comp_id && !lsa.lsa_pool_name) {
4082                 fprintf(stderr,
4083                         "%s %s: --component-set doesn't have component-id set\n",
4084                         progname, argv[0]);
4085                 goto usage_error;
4086         }
4087
4088         if ((delete + comp_set + comp_del + comp_add) > 1) {
4089                 fprintf(stderr,
4090                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
4091                         progname, argv[0]);
4092                 goto usage_error;
4093         }
4094
4095         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
4096                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
4097                 fprintf(stderr,
4098                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
4099                         progname, argv[0]);
4100                 goto usage_error;
4101         }
4102
4103         if ((comp_set || comp_del) &&
4104             (setstripe_args_specified(&lsa) || layout != NULL)) {
4105                 fprintf(stderr,
4106                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
4107                         progname, argv[0]);
4108                 goto usage_error;
4109         }
4110
4111         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
4112                 fprintf(stderr,
4113                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
4114                         progname, argv[0]);
4115                 goto usage_error;
4116         }
4117
4118         if (comp_add || comp_del) {
4119                 struct stat st;
4120
4121                 result = lstat(fname, &st);
4122                 if (result == 0 && S_ISDIR(st.st_mode)) {
4123                         fprintf(stderr,
4124                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
4125                                 progname);
4126                         goto usage_error;
4127                 }
4128
4129                 if (mirror_mode) {
4130                         fprintf(stderr,
4131                                 "error: %s: can't use --component-add or --component-del for mirror operation\n",
4132                                 progname);
4133                         goto usage_error;
4134                 }
4135         }
4136
4137         if (comp_add) {
4138                 if (!layout) {
4139                         fprintf(stderr,
4140                                 "%s %s: option -E must be specified with --component-add\n",
4141                                 progname, argv[0]);
4142                         goto usage_error;
4143                 }
4144         }
4145
4146         if (from_yaml && from_copy) {
4147                 fprintf(stderr,
4148                         "%s: can't specify --yaml and --copy together\n",
4149                         progname);
4150                 goto error;
4151         }
4152
4153         if ((from_yaml || from_copy) &&
4154             (setstripe_args_specified(&lsa) || layout != NULL)) {
4155                 fprintf(stderr,
4156                         "error: %s: can't specify --yaml or --copy with -c, -S, -i, -o, -p or -E options.\n",
4157                         argv[0]);
4158                 goto error;
4159         }
4160
4161         if ((migration_flags & LLAPI_MIGRATION_NONBLOCK) && migration_block) {
4162                 fprintf(stderr,
4163                         "%s %s: options --non-block and --block are mutually exclusive\n",
4164                         progname, argv[0]);
4165                 goto usage_error;
4166         }
4167
4168         if (!comp_del && !comp_set && opc != SO_MIRROR_SPLIT &&
4169             opc != SO_MIRROR_DELETE && comp_id != 0) {
4170                 fprintf(stderr,
4171                         "%s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
4172                         progname);
4173                 goto usage_error;
4174         }
4175
4176         if (migrate_mdt_mode) {
4177                 struct lmv_user_md *lmu;
4178
4179                 /* initialize migrate mdt parameters */
4180                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
4181                                                  LMV_USER_MAGIC_SPECIFIC));
4182                 if (!lmu) {
4183                         fprintf(stderr,
4184                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
4185                                 progname, argv[0], strerror(ENOMEM));
4186                         result = -ENOMEM;
4187                         goto error;
4188                 }
4189                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
4190                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
4191                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
4192                         fprintf(stderr,
4193                                 "%s %s: migrate should specify MDT index\n",
4194                                 progname, argv[0]);
4195                         free(lmu);
4196                         goto usage_error;
4197                 }
4198                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
4199                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
4200                         lmu->lum_hash_type = lsa.lsa_pattern;
4201                 else
4202                         lmu->lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
4203                 if (lsa.lsa_pool_name) {
4204                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
4205                                 sizeof(lmu->lum_pool_name) - 1);
4206                         lmu->lum_pool_name[sizeof(lmu->lum_pool_name) - 1] = 0;
4207                 }
4208                 if (lsa.lsa_nr_tgts > 1) {
4209                         int i;
4210
4211                         if (lsa.lsa_stripe_count > 0 &&
4212                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
4213                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
4214                                 fprintf(stderr,
4215                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
4216                                         progname, lsa.lsa_stripe_count,
4217                                         lsa.lsa_nr_tgts);
4218                                 free(lmu);
4219                                 goto usage_error;
4220                         }
4221
4222                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
4223                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
4224                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
4225                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
4226                 } else {
4227                         lmu->lum_magic = LMV_USER_MAGIC;
4228                 }
4229
4230                 migrate_mdt_param.fp_lmv_md = lmu;
4231                 migrate_mdt_param.fp_migrate = 1;
4232         } else if (!layout) {
4233                 if (lsa_args_stripe_count_check(&lsa))
4234                         goto usage_error;
4235
4236                 /* initialize stripe parameters */
4237                 param = calloc(1, offsetof(typeof(*param),
4238                                lsp_osts[lsa.lsa_nr_tgts]));
4239                 if (!param) {
4240                         fprintf(stderr,
4241                                 "%s %s: cannot allocate memory for parameters: %s\n",
4242                                 progname, argv[0], strerror(ENOMEM));
4243                         result = -ENOMEM;
4244                         goto error;
4245                 }
4246
4247                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
4248                         param->lsp_stripe_size = lsa.lsa_stripe_size;
4249                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
4250                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
4251                                 param->lsp_stripe_count = -1;
4252                         else
4253                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
4254                 }
4255                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4256                         param->lsp_stripe_offset = -1;
4257                 else
4258                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
4259                 param->lsp_stripe_pattern =
4260                                 llapi_pattern_to_lov(lsa.lsa_pattern);
4261                 if (param->lsp_stripe_pattern == EINVAL) {
4262                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
4263                                 argv[0]);
4264                         free(param);
4265                         goto usage_error;
4266                 }
4267                 param->lsp_pool = lsa.lsa_pool_name;
4268                 param->lsp_is_specific = false;
4269
4270                 if (lsa.lsa_nr_tgts > 0) {
4271                         param->lsp_is_specific = true;
4272                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
4273                         memcpy(param->lsp_osts, tgts,
4274                                sizeof(*tgts) * lsa.lsa_nr_tgts);
4275                 }
4276         }
4277
4278         if (from_yaml) {
4279                 /* generate a layout from a YAML template */
4280                 result = lfs_comp_create_from_yaml(template, &layout,
4281                                                    &lsa, tgts);
4282                 if (result) {
4283                         fprintf(stderr,
4284                                 "error: %s: can't create composite layout from template file %s\n",
4285                                 argv[0], template);
4286                         goto error;
4287                 }
4288         }
4289
4290         if (layout != NULL || mirror_list != NULL) {
4291                 if (mirror_list)
4292                         result = mirror_adjust_first_extents(mirror_list);
4293                 else
4294                         result = layout_adjust_first_extent(fname, layout,
4295                                                             comp_add);
4296                 if (result == -ENODATA)
4297                         comp_add = 0;
4298                 else if (result != 0) {
4299                         fprintf(stderr, "error: %s: invalid layout\n",
4300                                 progname);
4301                         goto error;
4302                 }
4303         }
4304
4305         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
4306                 if (from_copy) {
4307                         layout = llapi_layout_get_by_path(template ?: fname, 0);
4308                         if (!layout) {
4309                                 fprintf(stderr,
4310                                         "%s: can't create composite layout from file %s: %s\n",
4311                                         progname, template ?: fname,
4312                                         strerror(errno));
4313                                 result = -errno;
4314                                 goto error;
4315                         }
4316                 }
4317
4318                 if (migrate_mdt_mode) {
4319                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
4320                 } else if (migrate_mode) {
4321                         result = lfs_migrate(fname, migration_flags, param,
4322                                              layout);
4323                 } else if (comp_set != 0) {
4324                         result = lfs_component_set(fname, comp_id,
4325                                                    lsa.lsa_pool_name,
4326                                                    lsa.lsa_comp_flags,
4327                                                    lsa.lsa_comp_neg_flags);
4328                 } else if (comp_del != 0) {
4329                         result = lfs_component_del(fname, comp_id,
4330                                                    lsa.lsa_comp_flags,
4331                                                    lsa.lsa_comp_neg_flags);
4332                 } else if (comp_add != 0) {
4333                         result = lfs_component_add(fname, layout);
4334                 } else if (opc == SO_MIRROR_CREATE) {
4335                         result = mirror_create(fname, mirror_list);
4336                 } else if (opc == SO_MIRROR_EXTEND) {
4337                         result = mirror_extend(fname, mirror_list,
4338                                                mirror_flags);
4339                 } else if (opc == SO_MIRROR_SPLIT || opc == SO_MIRROR_DELETE) {
4340                         if (!mirror_id && !comp_id && !lsa.lsa_pool_name) {
4341                                 fprintf(stderr,
4342                                         "%s: no mirror id, component id, or pool name specified to delete from '%s'\n",
4343                                         progname, fname);
4344                                 goto usage_error;
4345                         }
4346                         if (lsa.lsa_pool_name)
4347                                 mirror_flags |= MF_COMP_POOL;
4348                         else if (mirror_id != 0)
4349                                 comp_id = mirror_id;
4350                         else
4351                                 mirror_flags |= MF_COMP_ID;
4352                         if (has_m_file && !strcmp(fname, mirror_list->m_file)) {
4353                                 fprintf(stderr,
4354                                         "%s: the file specified by -f cannot be same as the source file '%s'\n",
4355                                         progname, fname);
4356                                 goto usage_error;
4357                         }
4358                         result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
4359                                               mirror_flags,
4360                                               has_m_file ? mirror_list->m_file :
4361                                               NULL);
4362                 } else if (layout) {
4363                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
4364                                                       mode, layout);
4365                         if (result >= 0) {
4366                                 close(result);
4367                                 result = 0;
4368                         }
4369                 } else if (foreign_mode) {
4370                         result = llapi_file_create_foreign(fname, mode, type,
4371                                                            flags, xattr);
4372                         if (result >= 0) {
4373                                 close(result);
4374                                 result = 0;
4375                         }
4376                 } else {
4377                         result = llapi_file_open_param(fname,
4378                                                        O_CREAT | O_WRONLY,
4379                                                        mode, param);
4380                         if (result >= 0) {
4381                                 close(result);
4382                                 result = 0;
4383                         }
4384                 }
4385                 if (result) {
4386                         /* Save the first error encountered. */
4387                         if (result2 == 0)
4388                                 result2 = result;
4389                         continue;
4390                 }
4391         }
4392
4393         if (mode_opt)
4394                 umask(previous_umask);
4395
4396         free(param);
4397         free(migrate_mdt_param.fp_lmv_md);
4398         llapi_layout_free(layout);
4399         lfs_mirror_list_free(mirror_list);
4400         return result2;
4401 usage_error:
4402         result = CMD_HELP;
4403 error:
4404         llapi_layout_free(layout);
4405         lfs_mirror_list_free(mirror_list);
4406         return result;
4407 }
4408
4409 static int lfs_poollist(int argc, char **argv)
4410 {
4411         if (argc != 2)
4412                 return CMD_HELP;
4413
4414         return llapi_poollist(argv[1]);
4415 }
4416
4417 #define FP_DEFAULT_TIME_MARGIN (24 * 60 * 60)
4418 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
4419                        char *str)
4420 {
4421         long long t = 0;
4422         int sign = 0;
4423         char *endptr = "AD";
4424         char *timebuf;
4425
4426         if (str[0] == '+')
4427                 sign = 1;
4428         else if (str[0] == '-')
4429                 sign = -1;
4430
4431         if (sign)
4432                 str++;
4433
4434         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
4435                 long long val = strtoll(timebuf, &endptr, 0);
4436                 int unit = 1;
4437
4438                 switch (*endptr) {
4439                 case  'y':
4440                         unit *= 52; /* 52 weeks + 1 day below */
4441                         fallthrough;
4442                 case  'w':
4443                         unit *= 7;
4444                         if (param->fp_time_margin == FP_DEFAULT_TIME_MARGIN)
4445                                 param->fp_time_margin *= (1 + unit / 52);
4446                         unit += (*endptr == 'y'); /* +1 day for 365 days/year */
4447                         fallthrough;
4448                 case '\0': /* days are default unit if none used */
4449                         fallthrough;
4450                 case  'd':
4451                         unit *= 24;
4452                         fallthrough;
4453                 case  'h':
4454                         unit *= 60;
4455                         fallthrough;
4456                 case  'm':
4457                         unit *= 60;
4458                         fallthrough;
4459                 case  's':
4460                         break;
4461                         /* don't need to multiply by 1 for seconds */
4462                 default:
4463                         fprintf(stderr,
4464                                 "%s find: bad time string '%s': %s\n",
4465                                 progname, timebuf, strerror(EINVAL));
4466                         return LONG_MAX;
4467                 }
4468
4469                 if (param->fp_time_margin == 0 ||
4470                     (*endptr && unit < param->fp_time_margin))
4471                         param->fp_time_margin = unit;
4472
4473                 t += val * unit;
4474         }
4475         if (*time < t) {
4476                 if (sign != 0)
4477                         str--;
4478                 fprintf(stderr, "%s find: bad time '%s': too large\n",
4479                         progname, str);
4480                 return LONG_MAX;
4481         }
4482
4483         *set = *time - t;
4484
4485         return sign;
4486 }
4487
4488 static int str2quotaid(__u32 *id, const char *arg)
4489 {
4490         unsigned long int projid_tmp = 0;
4491         char *endptr = NULL;
4492
4493         projid_tmp = strtoul(arg, &endptr, 10);
4494         if (*endptr != '\0')
4495                 return -EINVAL;
4496         /* UINT32_MAX is not allowed - see projid_valid()/INVALID_PROJID */
4497         if (projid_tmp >= UINT32_MAX)
4498                 return -ERANGE;
4499
4500         *id = projid_tmp;
4501         return 0;
4502 }
4503
4504 static int name2uid(unsigned int *id, const char *name)
4505 {
4506         struct passwd *passwd;
4507
4508         passwd = getpwnam(name);
4509         if (!passwd)
4510                 return -ENOENT;
4511         *id = passwd->pw_uid;
4512
4513         return 0;
4514 }
4515
4516 static int name2gid(unsigned int *id, const char *name)
4517 {
4518         struct group *group;
4519
4520         group = getgrnam(name);
4521         if (!group)
4522                 return -ENOENT;
4523         *id = group->gr_gid;
4524
4525         return 0;
4526 }
4527
4528 static inline int name2projid(unsigned int *id, const char *name)
4529 {
4530         return -ENOTSUP;
4531 }
4532
4533 static int uid2name(char **name, unsigned int id)
4534 {
4535         struct passwd *passwd;
4536
4537         passwd = getpwuid(id);
4538         if (!passwd)
4539                 return -ENOENT;
4540         *name = passwd->pw_name;
4541
4542         return 0;
4543 }
4544
4545 static inline int gid2name(char **name, unsigned int id)
4546 {
4547         struct group *group;
4548
4549         group = getgrgid(id);
4550         if (!group)
4551                 return -ENOENT;
4552         *name = group->gr_name;
4553
4554         return 0;
4555 }
4556
4557 static int name2layout(__u32 *layout, char *name)
4558 {
4559         char *ptr, *layout_name;
4560
4561         *layout = 0;
4562         for (ptr = name; ; ptr = NULL) {
4563                 layout_name = strtok(ptr, ",");
4564                 if (!layout_name)
4565                         break;
4566                 if (strcmp(layout_name, "released") == 0)
4567                         *layout |= LOV_PATTERN_F_RELEASED;
4568                 else if (strcmp(layout_name, "raid0") == 0)
4569                         *layout |= LOV_PATTERN_RAID0;
4570                 else if (strcmp(layout_name, "mdt") == 0)
4571                         *layout |= LOV_PATTERN_MDT;
4572                 else if (strcmp(layout_name, "overstriping") == 0)
4573                         *layout |= LOV_PATTERN_OVERSTRIPING;
4574                 else
4575                         return -1;
4576         }
4577         return 0;
4578 }
4579
4580 static int parse_symbolic(const char *input, mode_t *outmode, const char **end)
4581 {
4582         int loop;
4583         int user, group, other;
4584         int who, all;
4585         char c, op;
4586         mode_t perm;
4587         mode_t usermask;
4588         mode_t previous_flags;
4589
4590         user = group = other = 0;
4591         all = 0;
4592         loop = 1;
4593         perm = 0;
4594         previous_flags = 0;
4595         *end = input;
4596         usermask = 0;
4597
4598         while (loop) {
4599                 switch (*input) {
4600                 case 'u':
4601                         user = 1;
4602                         break;
4603                 case 'g':
4604                         group = 1;
4605                         break;
4606                 case 'o':
4607                         other = 1;
4608                         break;
4609                 case 'a':
4610                         user = group = other = 1;
4611                         all = 1;
4612                         break;
4613                 default:
4614                         loop = 0;
4615                 }
4616
4617                 if (loop)
4618                         input++;
4619         }
4620
4621         who = user || group || other;
4622         if (!who) {
4623                 /* get the umask */
4624                 usermask = umask(0022);
4625                 umask(usermask);
4626                 usermask &= 07777;
4627         }
4628
4629         if (*input == '-' || *input == '+' || *input == '=')
4630                 op = *input++;
4631         else
4632                 /* operation is required */
4633                 return -1;
4634
4635         /* get the flags in *outmode */
4636         switch (*input) {
4637         case 'u':
4638                 previous_flags = (*outmode & 0700);
4639                 perm |= user  ? previous_flags : 0;
4640                 perm |= group ? (previous_flags >> 3) : 0;
4641                 perm |= other ? (previous_flags >> 6) : 0;
4642                 input++;
4643                 goto write_perm;
4644         case 'g':
4645                 previous_flags = (*outmode & 0070);
4646                 perm |= user  ? (previous_flags << 3) : 0;
4647                 perm |= group ? previous_flags : 0;
4648                 perm |= other ? (previous_flags >> 3) : 0;
4649                 input++;
4650                 goto write_perm;
4651         case 'o':
4652                 previous_flags = (*outmode & 0007);
4653                 perm |= user  ? (previous_flags << 6) : 0;
4654                 perm |= group ? (previous_flags << 3) : 0;
4655                 perm |= other ? previous_flags : 0;
4656                 input++;
4657                 goto write_perm;
4658         default:
4659                 break;
4660         }
4661
4662         /* this part is optional,
4663          * if empty perm = 0 and *outmode is not modified
4664          */
4665         loop = 1;
4666         while (loop) {
4667                 c = *input;
4668                 switch (c) {
4669                 case 'r':
4670                         perm |= user  ? 0400 : 0;
4671                         perm |= group ? 0040 : 0;
4672                         perm |= other ? 0004 : 0;
4673                         /* set read permission for uog except for umask's
4674                          * permissions
4675                          */
4676                         perm |= who   ? 0 : (0444 & ~usermask);
4677                         break;
4678                 case 'w':
4679                         perm |= user  ? 0200 : 0;
4680                         perm |= group ? 0020 : 0;
4681                         perm |= other ? 0002 : 0;
4682                         /* set write permission for uog except for umask'
4683                          * permissions
4684                          */
4685                         perm |= who   ? 0 : (0222 & ~usermask);
4686                         break;
4687                 case 'x':
4688                         perm |= user  ? 0100 : 0;
4689                         perm |= group ? 0010 : 0;
4690                         perm |= other ? 0001 : 0;
4691                         /* set execute permission for uog except for umask'
4692                          * permissions
4693                          */
4694                         perm |= who   ? 0 : (0111 & ~usermask);
4695                         break;
4696                 case 'X':
4697                         /*
4698                          * Adds execute permission to 'u', 'g' and/or 'g' if
4699                          * specified and either 'u', 'g' or 'o' already has
4700                          * execute permissions.
4701                          */
4702                         if ((*outmode & 0111) != 0) {
4703                                 perm |= user  ? 0100 : 0;
4704                                 perm |= group ? 0010 : 0;
4705                                 perm |= other ? 0001 : 0;
4706                                 perm |= !who  ? 0111 : 0;
4707                         }
4708                         break;
4709                 case 's':
4710                         /* s is ignored if o is given, but it's not an error */
4711                         if (other && !group && !user)
4712                                 break;
4713                         perm |= user  ? S_ISUID : 0;
4714                         perm |= group ? S_ISGID : 0;
4715                         break;
4716                 case 't':
4717                         /* 't' should be used when 'a' is given
4718                          * or who is empty
4719                          */
4720                         perm |= (!who || all) ? S_ISVTX : 0;
4721                         /* using ugo with t is not an error */
4722                         break;
4723                 default:
4724                         loop = 0;
4725                         break;
4726                 }
4727                 if (loop)
4728                         input++;
4729         }
4730
4731 write_perm:
4732         /* uog flags should be only one character long */
4733         if (previous_flags && (*input != '\0' && *input != ','))
4734                 return -1;
4735
4736         switch (op) {
4737         case '-':
4738                 /* remove the flags from outmode */
4739                 *outmode &= ~perm;
4740                 break;
4741         case '+':
4742                 /* add the flags to outmode */
4743                 *outmode |= perm;
4744                 break;
4745         case '=':
4746                 /* set the flags of outmode to perm */
4747                 if (perm != 0)
4748                         *outmode = perm;
4749                 break;
4750         }
4751
4752         *end = input;
4753         return 0;
4754 }
4755
4756 static int str2mode_t(const char *input, mode_t *outmode)
4757 {
4758         int ret;
4759         const char *iter;
4760
4761         ret = 0;
4762
4763         if (*input >= '0' && *input <= '7') {
4764                 /* parse octal representation */
4765                 char *end;
4766
4767                 iter = input;
4768
4769                 /* look for invalid digits in octal representation */
4770                 while (isdigit(*iter))
4771                         if (*iter++ > '7')
4772                                 return -1;
4773
4774                 errno = 0;
4775                 *outmode = strtoul(input, &end, 8);
4776
4777                 if (errno != 0 || *outmode > 07777) {
4778                         *outmode = 0;
4779                         ret = -1;
4780                 }
4781
4782         } else if (*input == '8' || *input == '9') {
4783                 /* error: invalid octal number */
4784                 ret = -1;
4785         } else {
4786                 /* parse coma seperated list of symbolic representation */
4787                 int rc;
4788                 const char *end;
4789
4790                 *outmode = 0;
4791                 rc = 0;
4792                 end = NULL;
4793
4794                 do {
4795                         rc = parse_symbolic(input, outmode, &end);
4796                         if (rc)
4797                                 return -1;
4798
4799                         input = end+1;
4800                 } while (*end == ',');
4801
4802                 if (*end != '\0')
4803                         ret = -1;
4804         }
4805         return ret;
4806 }
4807
4808 static int lfs_find(int argc, char **argv)
4809 {
4810         int c, rc;
4811         int ret = 0;
4812         time_t t;
4813         struct find_param param = {
4814                 .fp_max_depth = -1,
4815                 .fp_quiet = 1,
4816                 .fp_time_margin = FP_DEFAULT_TIME_MARGIN,
4817         };
4818         struct option long_opts[] = {
4819         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
4820         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
4821         { .val = 'B',   .name = "btime",        .has_arg = required_argument },
4822         { .val = 'B',   .name = "Btime",        .has_arg = required_argument },
4823         { .val = LFS_COMP_COUNT_OPT,
4824                         .name = "comp-count",   .has_arg = required_argument },
4825         { .val = LFS_COMP_COUNT_OPT,
4826                         .name = "component-count",
4827                                                 .has_arg = required_argument },
4828         { .val = LFS_COMP_FLAGS_OPT,
4829                         .name = "comp-flags",   .has_arg = required_argument },
4830         { .val = LFS_COMP_FLAGS_OPT,
4831                         .name = "component-flags",
4832                                                 .has_arg = required_argument },
4833         { .val = LFS_COMP_START_OPT,
4834                         .name = "comp-start",   .has_arg = required_argument },
4835         { .val = LFS_COMP_START_OPT,
4836                         .name = "component-start",
4837                                                 .has_arg = required_argument },
4838         { .val = LFS_MIRROR_STATE_OPT,
4839                         .name = "mirror-state", .has_arg = required_argument },
4840         { .val = LFS_NEWERXY_OPT,
4841                         .name = "newer",        .has_arg = required_argument},
4842         { .val = LFS_NEWERXY_OPT,
4843                         .name = "neweraa",      .has_arg = required_argument},
4844         { .val = LFS_NEWERXY_OPT,
4845                         .name = "neweram",      .has_arg = required_argument},
4846         { .val = LFS_NEWERXY_OPT,
4847                         .name = "newerac",      .has_arg = required_argument},
4848         { .val = LFS_NEWERXY_OPT,
4849                         .name = "newerab",      .has_arg = required_argument},
4850         { .val = LFS_NEWERXY_OPT,
4851                         .name = "newerma",      .has_arg = required_argument},
4852         { .val = LFS_NEWERXY_OPT,
4853                         .name = "newermm",      .has_arg = required_argument},
4854         { .val = LFS_NEWERXY_OPT,
4855                         .name = "newermc",      .has_arg = required_argument},
4856         { .val = LFS_NEWERXY_OPT,
4857                         .name = "newermb",      .has_arg = required_argument},
4858         { .val = LFS_NEWERXY_OPT,
4859                         .name = "newerca",      .has_arg = required_argument},
4860         { .val = LFS_NEWERXY_OPT,
4861                         .name = "newercm",      .has_arg = required_argument},
4862         { .val = LFS_NEWERXY_OPT,
4863                         .name = "newercc",      .has_arg = required_argument},
4864         { .val = LFS_NEWERXY_OPT,
4865                         .name = "newercb",      .has_arg = required_argument},
4866         { .val = LFS_NEWERXY_OPT,
4867                         .name = "newerba",      .has_arg = required_argument},
4868         { .val = LFS_NEWERXY_OPT,
4869                         .name = "newerbm",      .has_arg = required_argument},
4870         { .val = LFS_NEWERXY_OPT,
4871                         .name = "newerbc",      .has_arg = required_argument},
4872         { .val = LFS_NEWERXY_OPT,
4873                         .name = "newerbb",      .has_arg = required_argument},
4874         { .val = LFS_NEWERXY_OPT,
4875                         .name = "newerBa",      .has_arg = required_argument},
4876         { .val = LFS_NEWERXY_OPT,
4877                         .name = "newerBm",      .has_arg = required_argument},
4878         { .val = LFS_NEWERXY_OPT,
4879                         .name = "newerBc",      .has_arg = required_argument},
4880         { .val = LFS_NEWERXY_OPT,
4881                         .name = "newerBB",      .has_arg = required_argument},
4882         { .val = LFS_NEWERXY_OPT,
4883                         .name = "newerat",      .has_arg = required_argument},
4884         { .val = LFS_NEWERXY_OPT,
4885                         .name = "newermt",      .has_arg = required_argument},
4886         { .val = LFS_NEWERXY_OPT,
4887                         .name = "newerct",      .has_arg = required_argument},
4888         { .val = LFS_NEWERXY_OPT,
4889                         .name = "newerbt",      .has_arg = required_argument},
4890         { .val = LFS_NEWERXY_OPT,
4891                         .name = "newerBt",      .has_arg = required_argument},
4892         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
4893         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
4894         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
4895 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
4896         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
4897         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
4898         { .val = 'E',   .name = "component-end",
4899                                                 .has_arg = required_argument },
4900 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
4901         { .val = LFS_LAYOUT_FOREIGN_OPT,
4902                         .name = "foreign",      .has_arg = optional_argument},
4903         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
4904         { .val = 'G',   .name = "group",        .has_arg = required_argument },
4905         { .val = 'h',   .name = "help",         .has_arg = no_argument },
4906         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4907         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
4908         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
4909 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
4910         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
4911         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
4912         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
4913         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4914         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
4915         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
4916         { .val = 'n',   .name = "name",         .has_arg = required_argument },
4917         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
4918 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
4919         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4920         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4921         { .val = LFS_FIND_PERM,
4922                         .name = "perm",         .has_arg = required_argument },
4923         /* no short option for pool yet, can be 'p' after 2.18 */
4924         { .val = LFS_POOL_OPT,
4925                         .name = "pool",         .has_arg = required_argument },
4926         { .val = '0',   .name = "print0",       .has_arg = no_argument },
4927         { .val = 'P',   .name = "print",        .has_arg = no_argument },
4928         { .val = LFS_PRINTF_OPT,
4929                         .name = "printf",       .has_arg = required_argument },
4930         { .val = LFS_PROJID_OPT,
4931                         .name = "projid",       .has_arg = required_argument },
4932 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
4933 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
4934 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
4935         { .val = 's',   .name = "size",         .has_arg = required_argument },
4936         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
4937         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
4938         { .val = 't',   .name = "type",         .has_arg = required_argument },
4939         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4940         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
4941         { .val = 'U',   .name = "user",         .has_arg = required_argument },
4942 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
4943         { .val = 'z',   .name = "extension-size",
4944                                                 .has_arg = required_argument },
4945         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument },
4946         { .name = NULL } };
4947         int optidx = 0;
4948         int pathstart = -1;
4949         int pathend = -1;
4950         int pathbad = -1;
4951         int neg_opt = 0;
4952         time_t *xtime;
4953         int *xsign;
4954         int isoption;
4955         char *endptr;
4956
4957         time(&t);
4958
4959         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
4960         while ((c = getopt_long_only(argc, argv,
4961                 "-0A:b:B:c:C:D:E:g:G:hH:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:z:",
4962                 long_opts, &optidx)) >= 0) {
4963                 xtime = NULL;
4964                 xsign = NULL;
4965                 if (neg_opt)
4966                         --neg_opt;
4967                 /* '!' is part of option */
4968                 /*
4969                  * when getopt_long_only() finds a string which is not
4970                  * an option nor a known option argument it returns 1
4971                  * in that case if we already have found pathstart and pathend
4972                  * (i.e. we have the list of pathnames),
4973                  * the only supported value is "!"
4974                  */
4975                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4976                 if (!isoption && pathend != -1) {
4977                         fprintf(stderr,
4978                                 "err: %s: filename|dirname must either precede options or follow options\n",
4979                                 argv[0]);
4980                         ret = CMD_HELP;
4981                         goto err;
4982                 }
4983                 if (!isoption && pathstart == -1)
4984                         pathstart = optind - 1;
4985                 if (isoption && pathstart != -1 && pathend == -1)
4986                         pathend = optind - 2;
4987                 switch (c) {
4988                 case 0:
4989                         /* Long options. */
4990                         break;
4991                 case 1:
4992                         /*
4993                          * unknown; opt is "!" or path component,
4994                          * checking done above.
4995                          */
4996                         if (strcmp(optarg, "!") == 0)
4997                                 neg_opt = 2;
4998                         break;
4999                 case 'A':
5000                         xtime = &param.fp_atime;
5001                         xsign = &param.fp_asign;
5002                         param.fp_exclude_atime = !!neg_opt;
5003                         /* no break, this falls through to 'B' for btime */
5004                         fallthrough;
5005                 case 'B':
5006                         if (c == 'B') {
5007                                 xtime = &param.fp_btime;
5008                                 xsign = &param.fp_bsign;
5009                                 param.fp_exclude_btime = !!neg_opt;
5010                         }
5011                         /* no break, this falls through to 'C' for ctime */
5012                         fallthrough;
5013                 case 'C':
5014                         if (c == 'C') {
5015                                 xtime = &param.fp_ctime;
5016                                 xsign = &param.fp_csign;
5017                                 param.fp_exclude_ctime = !!neg_opt;
5018                         }
5019                         /* no break, this falls through to 'M' for mtime */
5020                         fallthrough;
5021                 case 'M':
5022                         if (c == 'M') {
5023                                 xtime = &param.fp_mtime;
5024                                 xsign = &param.fp_msign;
5025                                 param.fp_exclude_mtime = !!neg_opt;
5026                         }
5027                         rc = set_time(&param, &t, xtime, optarg);
5028                         if (rc == LONG_MAX) {
5029                                 ret = -1;
5030                                 goto err;
5031                         }
5032                         if (rc)
5033                                 *xsign = rc;
5034                         break;
5035                 case 'b':
5036                         if (optarg[0] == '+') {
5037                                 param.fp_blocks_sign = -1;
5038                                 optarg++;
5039                         } else if (optarg[0] == '-') {
5040                                 param.fp_blocks_sign =  1;
5041                                 optarg++;
5042                         }
5043
5044                         param.fp_blocks_units = 1024;
5045                         ret = llapi_parse_size(optarg, &param.fp_blocks,
5046                                                &param.fp_blocks_units, 0);
5047                         if (ret) {
5048                                 fprintf(stderr, "error: bad blocks '%s'\n",
5049                                         optarg);
5050                                 goto err;
5051                         }
5052                         param.fp_check_blocks = 1;
5053                         param.fp_exclude_blocks = !!neg_opt;
5054                         break;
5055                 case LFS_COMP_COUNT_OPT:
5056                         if (optarg[0] == '+') {
5057                                 param.fp_comp_count_sign = -1;
5058                                 optarg++;
5059                         } else if (optarg[0] == '-') {
5060                                 param.fp_comp_count_sign =  1;
5061                                 optarg++;
5062                         }
5063
5064                         errno = 0;
5065                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
5066                         if (errno != 0 || *endptr != '\0' ||
5067                             param.fp_comp_count > UINT32_MAX) {
5068                                 fprintf(stderr,
5069                                         "error: bad component count '%s'\n",
5070                                         optarg);
5071                                 goto err;
5072                         }
5073                         param.fp_check_comp_count = 1;
5074                         param.fp_exclude_comp_count = !!neg_opt;
5075                         break;
5076                 case LFS_COMP_FLAGS_OPT:
5077                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
5078                                             &param.fp_comp_neg_flags);
5079                         if (rc) {
5080                                 fprintf(stderr,
5081                                         "error: bad component flags '%s'\n",
5082                                         optarg);
5083                                 goto err;
5084                         }
5085                         param.fp_check_comp_flags = 1;
5086                         if (neg_opt) {
5087                                 __u32 flags = param.fp_comp_neg_flags;
5088
5089                                 param.fp_comp_neg_flags = param.fp_comp_flags;
5090                                 param.fp_comp_flags = flags;
5091                         }
5092                         break;
5093                 case LFS_COMP_START_OPT:
5094                         if (optarg[0] == '+') {
5095                                 param.fp_comp_start_sign = -1;
5096                                 optarg++;
5097                         } else if (optarg[0] == '-') {
5098                                 param.fp_comp_start_sign =  1;
5099                                 optarg++;
5100                         }
5101
5102                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
5103                                               &param.fp_comp_start_units, 0);
5104                         if (rc) {
5105                                 fprintf(stderr,
5106                                         "error: bad component start '%s'\n",
5107                                         optarg);
5108                                 goto err;
5109                         }
5110                         param.fp_check_comp_start = 1;
5111                         param.fp_exclude_comp_start = !!neg_opt;
5112                         break;
5113                 case LFS_MIRROR_STATE_OPT:
5114                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
5115                                               &param.fp_mirror_neg_state);
5116                         if (rc) {
5117                                 fprintf(stderr,
5118                                         "error: bad mirrored file state '%s'\n",
5119                                         optarg);
5120                                 goto err;
5121                         }
5122                         param.fp_check_mirror_state = 1;
5123                         if (neg_opt) {
5124                                 __u16 state = param.fp_mirror_neg_state;
5125
5126                                 param.fp_mirror_neg_state =
5127                                         param.fp_mirror_state;
5128                                 param.fp_mirror_state = state;
5129                         }
5130                         break;
5131                 case 'c':
5132                         if (optarg[0] == '+') {
5133                                 param.fp_stripe_count_sign = -1;
5134                                 optarg++;
5135                         } else if (optarg[0] == '-') {
5136                                 param.fp_stripe_count_sign =  1;
5137                                 optarg++;
5138                         }
5139
5140                         errno = 0;
5141                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
5142                         if (errno != 0 || *endptr != '\0' ||
5143                             param.fp_stripe_count > LOV_MAX_STRIPE_COUNT) {
5144                                 fprintf(stderr,
5145                                         "error: bad stripe_count '%s'\n",
5146                                         optarg);
5147                                 ret = -1;
5148                                 goto err;
5149                         }
5150                         param.fp_check_stripe_count = 1;
5151                         param.fp_exclude_stripe_count = !!neg_opt;
5152                         break;
5153                 case 'D':
5154                         errno = 0;
5155                         param.fp_max_depth = strtol(optarg, 0, 0);
5156                         if (errno != 0 || param.fp_max_depth < 0) {
5157                                 fprintf(stderr,
5158                                         "error: bad maxdepth '%s'\n",
5159                                         optarg);
5160                                 ret = -1;
5161                                 goto err;
5162                         }
5163                         break;
5164                 case 'E':
5165                         if (optarg[0] == '+') {
5166                                 param.fp_comp_end_sign = -1;
5167                                 optarg++;
5168                         } else if (optarg[0] == '-') {
5169                                 param.fp_comp_end_sign =  1;
5170                                 optarg++;
5171                         }
5172
5173                         if (arg_is_eof(optarg)) {
5174                                 param.fp_comp_end = LUSTRE_EOF;
5175                                 param.fp_comp_end_units = 1;
5176                                 rc = 0;
5177                         } else {
5178                                 rc = llapi_parse_size(optarg,
5179                                                 &param.fp_comp_end,
5180                                                 &param.fp_comp_end_units, 0);
5181                                 /* assume units of KB if too small */
5182                                 if (param.fp_comp_end < 4096)
5183                                         param.fp_comp_end *= 1024;
5184                         }
5185                         if (rc) {
5186                                 fprintf(stderr,
5187                                         "error: bad component end '%s'\n",
5188                                         optarg);
5189                                 goto err;
5190                         }
5191                         param.fp_check_comp_end = 1;
5192                         param.fp_exclude_comp_end = !!neg_opt;
5193                         break;
5194                 case LFS_LAYOUT_FOREIGN_OPT: {
5195                         /* all types by default */
5196                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
5197
5198                         if (optarg) {
5199                                 /* check pure numeric */
5200                                 type = strtoul(optarg, &endptr, 0);
5201                                 if (*endptr) {
5202                                         /* check name */
5203                                         type = check_foreign_type_name(optarg);
5204                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
5205                                                 fprintf(stderr,
5206                                                         "%s %s: unknown foreign type '%s'\n",
5207                                                         progname, argv[0],
5208                                                         optarg);
5209                                                 return CMD_HELP;
5210                                         }
5211                                 } else if (type >= UINT32_MAX) {
5212                                         fprintf(stderr,
5213                                                 "%s %s: invalid foreign type '%s'\n",
5214                                                 progname, argv[0], optarg);
5215                                         return CMD_HELP;
5216                                 }
5217                         }
5218                         param.fp_foreign_type = type;
5219                         param.fp_check_foreign = 1;
5220                         param.fp_exclude_foreign = !!neg_opt;
5221                         break;
5222                 }
5223                 case LFS_NEWERXY_OPT: {
5224                         char x = 'm';
5225                         char y = 'm';
5226                         int xidx;
5227                         int negidx;
5228                         time_t *newery;
5229                         time_t ref = time(NULL);
5230
5231                         /* no need to check bad options, they won't get here */
5232                         if (strlen(long_opts[optidx].name) == 7) {
5233                                 x = long_opts[optidx].name[5];
5234                                 y = long_opts[optidx].name[6];
5235                         }
5236
5237                         if (y == 't') {
5238                                 static const char *const fmts[] = {
5239                                         "%Y-%m-%d %H:%M:%S",
5240                                         "%Y-%m-%d %H:%M",
5241                                         "%Y-%m-%d",
5242                                         "%H:%M:%S", /* sometime today */
5243                                         "%H:%M",
5244                                         "@%s",
5245                                         "%s",
5246                                         NULL };
5247                                 struct tm tm;
5248                                 bool found = false;
5249                                 int i;
5250
5251                                 for (i = 0; fmts[i] != NULL; i++) {
5252                                         char *ptr;
5253
5254                                         /* Init for times relative to today */
5255                                         if (strncmp(fmts[i], "%H", 2) == 0)
5256                                                 localtime_r(&ref, &tm);
5257                                         else
5258                                                 memset(&tm, 0, sizeof(tm));
5259                                         ptr = strptime(optarg, fmts[i], &tm);
5260                                         /* Skip spaces */
5261                                         while (ptr && isspace(*ptr))
5262                                                 ptr++;
5263                                         if (ptr == optarg + strlen(optarg)) {
5264                                                 found = true;
5265                                                 break;
5266                                         }
5267                                 }
5268
5269                                 if (!found) {
5270                                         fprintf(stderr,
5271                                                 "%s: invalid time '%s'\n",
5272                                                 progname, optarg);
5273                                         fprintf(stderr,
5274                                                 "supported formats are:\n  ");
5275                                         for (i = 0; fmts[i] != NULL; i++)
5276                                                 fprintf(stderr, "'%s', ",
5277                                                         fmts[i]);
5278                                         fprintf(stderr, "\n");
5279                                         ret = -EINVAL;
5280                                         goto err;
5281                                 }
5282
5283                                 ref = mktime(&tm);
5284                         } else if (y == 'b' || y == 'B') {
5285                                 lstatx_t stx;
5286
5287                                 rc = llapi_get_lum_file(optarg, NULL, &stx,
5288                                                         NULL, 0);
5289                                 if (rc || !(stx.stx_mask & STATX_BTIME)) {
5290                                         if (!(stx.stx_mask & STATX_BTIME))
5291                                                 ret = -EOPNOTSUPP;
5292                                         else
5293                                                 ret = -errno;
5294                                         fprintf(stderr,
5295                                                 "%s: get btime failed '%s': %s\n",
5296                                                 progname, optarg,
5297                                                 strerror(-ret));
5298                                         goto err;
5299                                 }
5300
5301                                 ref = stx.stx_btime.tv_sec;
5302                         } else {
5303                                 struct stat statbuf;
5304
5305                                 if (stat(optarg, &statbuf) < 0) {
5306                                         fprintf(stderr,
5307                                                 "%s: cannot stat file '%s': %s\n",
5308                                                 progname, optarg,
5309                                                 strerror(errno));
5310                                         ret = -errno;
5311                                         goto err;
5312                                 }
5313
5314                                 switch (y) {
5315                                 case 'a':
5316                                         ref = statbuf.st_atime;
5317                                         break;
5318                                 case 'm':
5319                                         ref = statbuf.st_mtime;
5320                                         break;
5321                                 case 'c':
5322                                         ref = statbuf.st_ctime;
5323                                         break;
5324                                 default:
5325                                         fprintf(stderr,
5326                                                 "%s: invalid Y argument: '%c'\n",
5327                                                 progname, x);
5328                                         ret = -EINVAL;
5329                                         goto err;
5330                                 }
5331                         }
5332
5333                         switch (x) {
5334                         case 'a':
5335                                 xidx = NEWERXY_ATIME;
5336                                 break;
5337                         case 'm':
5338                                 xidx = NEWERXY_MTIME;
5339                                 break;
5340                         case 'c':
5341                                 xidx = NEWERXY_CTIME;
5342                                 break;
5343                         case 'b':
5344                         case 'B':
5345                                 xidx = NEWERXY_BTIME;
5346                                 break;
5347                         default:
5348                                 fprintf(stderr,
5349                                         "%s: invalid X argument: '%c'\n",
5350                                         progname, x);
5351                                 ret = -EINVAL;
5352                                 goto err;
5353                         }
5354
5355                         negidx = !!neg_opt;
5356                         newery = &param.fp_newery[xidx][negidx];
5357
5358                         if (*newery == 0) {
5359                                 *newery = ref;
5360                         } else {
5361                                 if (negidx)
5362                                         *newery = *newery > ref ? ref : *newery;
5363                                 else
5364                                         *newery = *newery > ref ? *newery : ref;
5365                         }
5366                         param.fp_newerxy = 1;
5367                         break;
5368                 }
5369                 case 'g':
5370                 case 'G':
5371                         rc = name2gid(&param.fp_gid, optarg);
5372                         if (rc) {
5373                                 if (str2quotaid(&param.fp_gid, optarg)) {
5374                                         fprintf(stderr,
5375                                                 "Group/GID: %s cannot be found.\n",
5376                                                 optarg);
5377                                         ret = -1;
5378                                         goto err;
5379                                 }
5380                         }
5381                         param.fp_exclude_gid = !!neg_opt;
5382                         param.fp_check_gid = 1;
5383                         break;
5384                 case 'H':
5385                         rc = mdthash_input(optarg, &param.fp_hash_inflags,
5386                                            &param.fp_hash_exflags,
5387                                            &param.fp_hash_type);
5388                         if (rc) {
5389                                 ret = -1;
5390                                 goto err;
5391                         }
5392                         if (param.fp_hash_inflags || param.fp_hash_exflags)
5393                                 param.fp_check_hash_flag = 1;
5394                         param.fp_exclude_hash_type = !!neg_opt;
5395                         break;
5396                 case 'l':
5397                         param.fp_lazy = 1;
5398                         break;
5399                 case 'L':
5400                         ret = name2layout(&param.fp_layout, optarg);
5401                         if (ret)
5402                                 goto err;
5403                         param.fp_exclude_layout = !!neg_opt;
5404                         param.fp_check_layout = 1;
5405                         break;
5406                 case 'u':
5407                 case 'U':
5408                         rc = name2uid(&param.fp_uid, optarg);
5409                         if (rc) {
5410                                 if (str2quotaid(&param.fp_uid, optarg)) {
5411                                         fprintf(stderr,
5412                                                 "User/UID: %s cannot be found.\n",
5413                                                 optarg);
5414                                         ret = -1;
5415                                         goto err;
5416                                 }
5417                         }
5418                         param.fp_exclude_uid = !!neg_opt;
5419                         param.fp_check_uid = 1;
5420                         break;
5421                 case 'n':
5422                         param.fp_pattern = (char *)optarg;
5423                         param.fp_exclude_pattern = !!neg_opt;
5424                         break;
5425                 case 'N':
5426                         if (optarg[0] == '+') {
5427                                 param.fp_mirror_count_sign = -1;
5428                                 optarg++;
5429                         } else if (optarg[0] == '-') {
5430                                 param.fp_mirror_count_sign =  1;
5431                                 optarg++;
5432                         }
5433
5434                         errno = 0;
5435                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
5436                         if (errno != 0 || *endptr != '\0' ||
5437                             param.fp_mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
5438                                 fprintf(stderr,
5439                                         "error: bad mirror count '%s'\n",
5440                                         optarg);
5441                                 goto err;
5442                         }
5443                         param.fp_check_mirror_count = 1;
5444                         param.fp_exclude_mirror_count = !!neg_opt;
5445                         break;
5446                 case 'm':
5447                 case 'i':
5448                 case 'O': {
5449                         char *buf, *token, *next, *p;
5450                         int len = 1;
5451                         void *tmp;
5452
5453                         buf = strdup(optarg);
5454                         if (!buf) {
5455                                 ret = -ENOMEM;
5456                                 goto err;
5457                         }
5458
5459                         param.fp_exclude_obd = !!neg_opt;
5460
5461                         token = buf;
5462                         while (token && *token) {
5463                                 token = strchr(token, ',');
5464                                 if (token) {
5465                                         len++;
5466                                         token++;
5467                                 }
5468                         }
5469                         if (c == 'm') {
5470                                 param.fp_exclude_mdt = !!neg_opt;
5471                                 param.fp_num_alloc_mdts += len;
5472                                 tmp = realloc(param.fp_mdt_uuid,
5473                                               param.fp_num_alloc_mdts *
5474                                               sizeof(*param.fp_mdt_uuid));
5475                                 if (!tmp) {
5476                                         ret = -ENOMEM;
5477                                         goto err_free;
5478                                 }
5479
5480                                 param.fp_mdt_uuid = tmp;
5481                         } else {
5482                                 param.fp_exclude_obd = !!neg_opt;
5483                                 param.fp_num_alloc_obds += len;
5484                                 tmp = realloc(param.fp_obd_uuid,
5485                                               param.fp_num_alloc_obds *
5486                                               sizeof(*param.fp_obd_uuid));
5487                                 if (!tmp) {
5488                                         ret = -ENOMEM;
5489                                         goto err_free;
5490                                 }
5491
5492                                 param.fp_obd_uuid = tmp;
5493                         }
5494                         for (token = buf; token && *token; token = next) {
5495                                 struct obd_uuid *puuid;
5496
5497                                 if (c == 'm') {
5498                                         puuid =
5499                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
5500                                 } else {
5501                                         puuid =
5502                                         &param.fp_obd_uuid[param.fp_num_obds++];
5503                                 }
5504                                 p = strchr(token, ',');
5505                                 next = 0;
5506                                 if (p) {
5507                                         *p = 0;
5508                                         next = p+1;
5509                                 }
5510
5511                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
5512                                         ret = -E2BIG;
5513                                         goto err_free;
5514                                 }
5515
5516                                 strncpy(puuid->uuid, token,
5517                                         sizeof(puuid->uuid));
5518                         }
5519 err_free:
5520                         if (buf)
5521                                 free(buf);
5522                         break;
5523                 }
5524 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
5525                 case 'p':
5526 #endif
5527                 case LFS_POOL_OPT:
5528                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
5529                                 fprintf(stderr,
5530                                         "Pool name %s is too long (max %d)\n",
5531                                         optarg, LOV_MAXPOOLNAME);
5532                                 ret = -1;
5533                                 goto err;
5534                         }
5535                         /*
5536                          * We do check for empty pool because empty pool
5537                          * is used to find V1 LOV attributes
5538                          */
5539                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
5540                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
5541                         param.fp_exclude_pool = !!neg_opt;
5542                         param.fp_check_pool = 1;
5543                         break;
5544 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
5545                 case 'p': /* want this for --pool, to match getstripe/find */
5546                         fprintf(stderr,
5547                                 "warning: -p deprecated, use --print0 or -0\n");
5548 #endif
5549                 case '0':
5550                         param.fp_zero_end = 1;
5551                         break;
5552                 case 'P': /* we always print, this option is a no-op */
5553                         break;
5554                 case LFS_PRINTF_OPT:
5555                         param.fp_format_printf_str = optarg;
5556                         break;
5557                 case LFS_PROJID_OPT:
5558                         rc = name2projid(&param.fp_projid, optarg);
5559                         if (rc) {
5560                                 if (str2quotaid(&param.fp_projid, optarg)) {
5561                                         fprintf(stderr,
5562                                                 "Invalid project ID: %s\n",
5563                                                 optarg);
5564                                         ret = -1;
5565                                         goto err;
5566                                 }
5567                         }
5568                         param.fp_exclude_projid = !!neg_opt;
5569                         param.fp_check_projid = 1;
5570                         break;
5571                 case 's':
5572                         if (optarg[0] == '+') {
5573                                 param.fp_size_sign = -1;
5574                                 optarg++;
5575                         } else if (optarg[0] == '-') {
5576                                 param.fp_size_sign =  1;
5577                                 optarg++;
5578                         }
5579
5580                         ret = llapi_parse_size(optarg, &param.fp_size,
5581                                                &param.fp_size_units, 0);
5582                         if (ret) {
5583                                 fprintf(stderr, "error: bad file size '%s'\n",
5584                                         optarg);
5585                                 goto err;
5586                         }
5587                         param.fp_check_size = 1;
5588                         param.fp_exclude_size = !!neg_opt;
5589                         break;
5590                 case 'S':
5591                         if (optarg[0] == '+') {
5592                                 param.fp_stripe_size_sign = -1;
5593                                 optarg++;
5594                         } else if (optarg[0] == '-') {
5595                                 param.fp_stripe_size_sign =  1;
5596                                 optarg++;
5597                         }
5598
5599                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
5600                                                &param.fp_stripe_size_units, 0);
5601                         /* assume units of KB if too small to be valid */
5602                         if (param.fp_stripe_size < 4096)
5603                                 param.fp_stripe_size *= 1024;
5604                         if (ret) {
5605                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
5606                                         optarg);
5607                                 goto err;
5608                         }
5609                         param.fp_check_stripe_size = 1;
5610                         param.fp_exclude_stripe_size = !!neg_opt;
5611                         break;
5612                 case 't':
5613                         param.fp_exclude_type = !!neg_opt;
5614                         switch (optarg[0]) {
5615                         case 'b':
5616                                 param.fp_type = S_IFBLK;
5617                                 break;
5618                         case 'c':
5619                                 param.fp_type = S_IFCHR;
5620                                 break;
5621                         case 'd':
5622                                 param.fp_type = S_IFDIR;
5623                                 break;
5624                         case 'f':
5625                                 param.fp_type = S_IFREG;
5626                                 break;
5627                         case 'l':
5628                                 param.fp_type = S_IFLNK;
5629                                 break;
5630                         case 'p':
5631                                 param.fp_type = S_IFIFO;
5632                                 break;
5633                         case 's':
5634                                 param.fp_type = S_IFSOCK;
5635                                 break;
5636                         default:
5637                                 fprintf(stderr, "%s: bad type '%s'\n",
5638                                         progname, optarg);
5639                                 ret = CMD_HELP;
5640                                 goto err;
5641                         }
5642                         break;
5643                 case LFS_FIND_PERM:
5644                         param.fp_exclude_perm = !!neg_opt;
5645                         param.fp_perm_sign = LFS_FIND_PERM_EXACT;
5646                         if (*optarg == '/') {
5647                                 param.fp_perm_sign = LFS_FIND_PERM_ANY;
5648                                 optarg++;
5649                         } else if (*optarg == '-') {
5650                                 param.fp_perm_sign = LFS_FIND_PERM_ALL;
5651                                 optarg++;
5652                         }
5653
5654                         if (str2mode_t(optarg, &param.fp_perm)) {
5655                                 fprintf(stderr, "error: invalid mode '%s'\n",
5656                                         optarg);
5657                                 ret = -1;
5658                                 goto err;
5659                         }
5660                         break;
5661                 case 'T':
5662                         if (optarg[0] == '+') {
5663                                 param.fp_mdt_count_sign = -1;
5664                                 optarg++;
5665                         } else if (optarg[0] == '-') {
5666                                 param.fp_mdt_count_sign =  1;
5667                                 optarg++;
5668                         }
5669
5670                         errno = 0;
5671                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
5672                         if (errno != 0 || *endptr != '\0' ||
5673                             param.fp_mdt_count >= UINT32_MAX) {
5674                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
5675                                         optarg);
5676                                 ret = -1;
5677                                 goto err;
5678                         }
5679                         param.fp_check_mdt_count = 1;
5680                         param.fp_exclude_mdt_count = !!neg_opt;
5681                         break;
5682                 case 'z':
5683                         if (optarg[0] == '+') {
5684                                 param.fp_ext_size_sign = -1;
5685                                 optarg++;
5686                         } else if (optarg[0] == '-') {
5687                                 param.fp_ext_size_sign =  1;
5688                                 optarg++;
5689                         }
5690
5691                         ret = llapi_parse_size(optarg, &param.fp_ext_size,
5692                                                &param.fp_ext_size_units, 0);
5693                         if (ret) {
5694                                 fprintf(stderr, "error: bad ext-size '%s'\n",
5695                                         optarg);
5696                                 goto err;
5697                         }
5698                         param.fp_ext_size /= SEL_UNIT_SIZE;
5699                         param.fp_ext_size_units /= SEL_UNIT_SIZE;
5700                         param.fp_check_ext_size = 1;
5701                         param.fp_exclude_ext_size = !!neg_opt;
5702                         break;
5703                 default:
5704                         fprintf(stderr, "%s: unrecognized option '%s'\n",
5705                                 progname, argv[optind - 1]);
5706                 case 'h':
5707                         ret = CMD_HELP;
5708                         goto err;
5709                 }
5710         }
5711         if (!param.fp_verbose)
5712                 param.fp_verbose = VERBOSE_DEFAULT;
5713
5714         if (pathstart == -1) {
5715                 fprintf(stderr, "error: %s: no filename|pathname\n",
5716                         argv[0]);
5717                 ret = CMD_HELP;
5718                 goto err;
5719         } else if (pathend == -1) {
5720                 /* no options */
5721                 pathend = argc;
5722         }
5723
5724         do {
5725                 rc = llapi_find(argv[pathstart], &param);
5726                 if (rc && !ret) {
5727                         ret = rc;
5728                         pathbad = pathstart;
5729                 }
5730         } while (++pathstart < pathend);
5731
5732         if (ret)
5733                 fprintf(stderr, "%s: failed for '%s': %s\n",
5734                         progname, argv[pathbad], strerror(-rc));
5735
5736 err:
5737         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
5738                 free(param.fp_obd_uuid);
5739
5740         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
5741                 free(param.fp_mdt_uuid);
5742
5743         return ret;
5744 }
5745
5746 static int lfs_getstripe_internal(int argc, char **argv,
5747                                   struct find_param *param)
5748 {
5749         struct option long_opts[] = {
5750 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
5751 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
5752 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
5753 /* find { .val = 'B',   .name = "Btime",        .has_arg = required_argument }*/
5754         { .val = LFS_COMP_COUNT_OPT,
5755                         .name = "comp-count",   .has_arg = no_argument },
5756         { .val = LFS_COMP_COUNT_OPT,
5757                 .name = "component-count",      .has_arg = no_argument },
5758         { .val = LFS_COMP_FLAGS_OPT,
5759                         .name = "comp-flags",   .has_arg = optional_argument },
5760         { .val = LFS_COMP_FLAGS_OPT,
5761                 .name = "component-flags",      .has_arg = optional_argument },
5762         { .val = LFS_COMP_START_OPT,
5763                         .name = "comp-start",   .has_arg = optional_argument },
5764         { .val = LFS_COMP_START_OPT,
5765                 .name = "component-start",      .has_arg = optional_argument },
5766         { .val = LFS_MIRROR_INDEX_OPT,
5767                 .name = "mirror-index",         .has_arg = required_argument },
5768         { .val = LFS_MIRROR_ID_OPT,
5769                 .name = "mirror-id",            .has_arg = required_argument },
5770         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
5771         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
5772 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
5773         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
5774         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5775         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
5776         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
5777         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
5778         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
5779 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
5780         { .val = 'h',   .name = "help",         .has_arg = no_argument },
5781 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
5782         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
5783         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
5784         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
5785         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
5786 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
5787         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
5788         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
5789         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5790         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
5791 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
5792 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
5793         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
5794         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5795         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
5796         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
5797 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
5798         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
5799         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5800         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
5801         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
5802         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
5803 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
5804 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
5805 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
5806 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
5807         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5808 /* dirstripe { .val = 'X',.name = "max-inherit",.has_arg = required_argument }*/
5809         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5810         { .val = 'z',   .name = "extension-size", .has_arg = no_argument },
5811         { .val = 'z',   .name = "ext-size",     .has_arg = no_argument },
5812         { .name = NULL } };
5813         int c, rc;
5814         int neg_opt = 0;
5815         int pathstart = -1, pathend = -1;
5816         int isoption;
5817         char *end, *tmp;
5818
5819         while ((c = getopt_long(argc, argv,
5820                         "-cdDE::FghiI::LmMNoO:pqrRsSvyz",
5821                         long_opts, NULL)) != -1) {
5822                 if (neg_opt)
5823                         --neg_opt;
5824
5825                 /* '!' is part of option */
5826                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5827                 if (!isoption && pathend != -1) {
5828                         fprintf(stderr,
5829                                 "error: %s: filename|dirname must either precede options or follow options\n",
5830                                 argv[0]);
5831                         return CMD_HELP;
5832                 }
5833                 if (!isoption && pathstart == -1)
5834                         pathstart = optind - 1;
5835                 if (isoption && pathstart != -1 && pathend == -1)
5836                         pathend = optind - 2;
5837
5838                 switch (c) {
5839                 case 1:
5840                         /* unknown: opt is "!" */
5841                         if (strcmp(optarg, "!") == 0)
5842                                 neg_opt = 2;
5843                         break;
5844                 case 'c':
5845                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5846                                 param->fp_verbose |= VERBOSE_COUNT;
5847                                 param->fp_max_depth = 0;
5848                         }
5849                         break;
5850                 case LFS_COMP_COUNT_OPT:
5851                         param->fp_verbose |= VERBOSE_COMP_COUNT;
5852                         param->fp_max_depth = 0;
5853                         break;
5854                 case LFS_COMP_FLAGS_OPT:
5855                         if (optarg) {
5856                                 rc = comp_str2flags(optarg,
5857                                                     &param->fp_comp_flags,
5858                                                     &param->fp_comp_neg_flags);
5859                                 if (rc != 0) {
5860                                         fprintf(stderr,
5861                                                 "error: %s bad component flags '%s'.\n",
5862                                                 argv[0], optarg);
5863                                         return CMD_HELP;
5864                                 }
5865                                 param->fp_check_comp_flags = 1;
5866                         } else {
5867                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
5868                                 param->fp_max_depth = 0;
5869                         }
5870                         break;
5871                 case LFS_COMP_START_OPT:
5872                         if (optarg) {
5873                                 tmp = optarg;
5874                                 if (tmp[0] == '+') {
5875                                         param->fp_comp_start_sign = -1;
5876                                         tmp++;
5877                                 } else if (tmp[0] == '-') {
5878                                         param->fp_comp_start_sign = 1;
5879                                         tmp++;
5880                                 }
5881                                 rc = llapi_parse_size(tmp,
5882                                                 &param->fp_comp_start,
5883                                                 &param->fp_comp_start_units, 0);
5884                                 if (rc != 0) {
5885                                         fprintf(stderr,
5886                                                 "error: %s bad component start '%s'.\n",
5887                                                 argv[0], tmp);
5888                                         return CMD_HELP;
5889                                 }
5890                                 param->fp_check_comp_start = 1;
5891                         } else {
5892                                 param->fp_verbose |= VERBOSE_COMP_START;
5893                                 param->fp_max_depth = 0;
5894                         }
5895                         break;
5896                 case LFS_MIRROR_INDEX_OPT: {
5897                         unsigned long int mirror_index;
5898
5899                         if (optarg[0] == '+') {
5900                                 param->fp_mirror_index_sign = -1;
5901                                 optarg++;
5902                         } else if (optarg[0] == '-') {
5903                                 param->fp_mirror_index_sign = 1;
5904                                 optarg++;
5905                         }
5906
5907                         errno = 0;
5908                         mirror_index = strtoul(optarg, &end, 0);
5909                         if (errno != 0 || *end != '\0' ||
5910                             mirror_index > UINT16_MAX || (mirror_index == 0 &&
5911                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
5912                                 fprintf(stderr,
5913                                         "%s %s: invalid mirror index '%s'\n",
5914                                         progname, argv[0], optarg);
5915                                 return CMD_HELP;
5916                         }
5917
5918                         param->fp_mirror_index = (__u16)mirror_index;
5919
5920                         if (param->fp_mirror_id != 0) {
5921                                 fprintf(stderr,
5922                                         "%s %s: can't specify both mirror index and mirror ID\n",
5923                                         progname, argv[0]);
5924                                 return CMD_HELP;
5925                         }
5926                         param->fp_check_mirror_index = 1;
5927                         param->fp_exclude_mirror_index = !!neg_opt;
5928                         break;
5929                 }
5930                 case LFS_MIRROR_ID_OPT: {
5931                         unsigned long int mirror_id;
5932
5933                         if (optarg[0] == '+') {
5934                                 param->fp_mirror_id_sign = -1;
5935                                 optarg++;
5936                         } else if (optarg[0] == '-') {
5937                                 param->fp_mirror_id_sign = 1;
5938                                 optarg++;
5939                         }
5940
5941                         errno = 0;
5942                         mirror_id = strtoul(optarg, &end, 0);
5943                         if (errno != 0 || *end != '\0' ||
5944                             mirror_id > UINT16_MAX || (mirror_id == 0 &&
5945                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
5946                                 fprintf(stderr,
5947                                         "%s %s: invalid mirror ID '%s'\n",
5948                                         progname, argv[0], optarg);
5949                                 return CMD_HELP;
5950                         }
5951
5952                         param->fp_mirror_id = (__u16)mirror_id;
5953
5954                         if (param->fp_mirror_index != 0) {
5955                                 fprintf(stderr,
5956                                         "%s %s: can't specify both mirror index and mirror ID\n",
5957                                         progname, argv[0]);
5958                                 return CMD_HELP;
5959                         }
5960                         param->fp_check_mirror_id = 1;
5961                         param->fp_exclude_mirror_id = !!neg_opt;
5962                         break;
5963                 }
5964                 case 'd':
5965                         param->fp_max_depth = 0;
5966                         break;
5967                 case 'D':
5968                         param->fp_get_default_lmv = 1;
5969                         break;
5970                 case 'E':
5971                         if (optarg) {
5972                                 tmp = optarg;
5973                                 if (tmp[0] == '+') {
5974                                         param->fp_comp_end_sign = -1;
5975                                         tmp++;
5976                                 } else if (tmp[0] == '-') {
5977                                         param->fp_comp_end_sign = 1;
5978                                         tmp++;
5979                                 }
5980
5981                                 if (arg_is_eof(tmp)) {
5982                                         param->fp_comp_end = LUSTRE_EOF;
5983                                         param->fp_comp_end_units = 1;
5984                                         rc = 0;
5985                                 } else {
5986                                         rc = llapi_parse_size(tmp,
5987                                                 &param->fp_comp_end,
5988                                                 &param->fp_comp_end_units, 0);
5989                                         /* assume units of KB if too small */
5990                                         if (param->fp_comp_end < 4096)
5991                                                 param->fp_comp_end *= 1024;
5992                                 }
5993                                 if (rc != 0) {
5994                                         fprintf(stderr,
5995                                                 "error: %s bad component end '%s'.\n",
5996                                                 argv[0], tmp);
5997                                         return CMD_HELP;
5998                                 }
5999                                 param->fp_check_comp_end = 1;
6000                         } else {
6001                                 param->fp_verbose |= VERBOSE_COMP_END;
6002                                 param->fp_max_depth = 0;
6003                         }
6004                         break;
6005                 case 'F':
6006                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6007                                 param->fp_verbose |= VERBOSE_DFID;
6008                                 param->fp_max_depth = 0;
6009                         }
6010                         break;
6011                 case 'g':
6012                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6013                                 param->fp_verbose |= VERBOSE_GENERATION;
6014                                 param->fp_max_depth = 0;
6015                         }
6016                         break;
6017                 case 'i':
6018                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6019                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
6020                                 param->fp_max_depth = 0;
6021                         }
6022                         break;
6023                 case 'I':
6024                         if (optarg) {
6025                                 param->fp_comp_id = strtoul(optarg, &end, 0);
6026                                 if (*end != '\0' || param->fp_comp_id == 0 ||
6027                                     param->fp_comp_id > LCME_ID_MAX) {
6028                                         fprintf(stderr,
6029                                                 "error: %s bad component id '%s'\n",
6030                                                 argv[0], optarg);
6031                                         return CMD_HELP;
6032                                 }
6033                                 param->fp_check_comp_id = 1;
6034                         } else {
6035                                 param->fp_max_depth = 0;
6036                                 param->fp_verbose |= VERBOSE_COMP_ID;
6037                         }
6038                         break;
6039                 case 'L':
6040                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6041                                 param->fp_verbose |= VERBOSE_PATTERN;
6042                                 param->fp_max_depth = 0;
6043                         }
6044                         break;
6045 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6046                 case 'M':
6047                         fprintf(stderr,
6048                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
6049 #endif
6050                 case 'm':
6051                         if (!(param->fp_verbose & VERBOSE_DETAIL))
6052                                 param->fp_max_depth = 0;
6053                         param->fp_verbose |= VERBOSE_MDTINDEX;
6054                         break;
6055                 case 'N':
6056                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6057                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
6058                                 param->fp_max_depth = 0;
6059                         }
6060                         break;
6061                 case 'O':
6062                         if (param->fp_obd_uuid) {
6063                                 fprintf(stderr,
6064                                         "error: %s: only one obduuid allowed",
6065                                         argv[0]);
6066                                 return CMD_HELP;
6067                         }
6068                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
6069                         break;
6070                 case 'p':
6071                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6072                                 param->fp_verbose |= VERBOSE_POOL;
6073                                 param->fp_max_depth = 0;
6074                         }
6075                         break;
6076                 case 'q':
6077                         param->fp_quiet++;
6078                         break;
6079                 case 'r':
6080                         param->fp_recursive = 1;
6081                         break;
6082                 case 'R':
6083                         param->fp_raw = 1;
6084                         break;
6085                 case 'S':
6086                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6087                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
6088                                 param->fp_max_depth = 0;
6089                         }
6090                         break;
6091                 case 'v':
6092                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
6093                         break;
6094                 case 'y':
6095                         param->fp_yaml = 1;
6096                         break;
6097                 case 'z':
6098                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6099                                 param->fp_verbose |= VERBOSE_EXT_SIZE;
6100                                 param->fp_max_depth = 0;
6101                         }
6102                         break;
6103                 default:
6104                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6105                                 progname, argv[optind - 1]);
6106                 case 'h':
6107                         return CMD_HELP;
6108                 }
6109         }
6110
6111         if (pathstart == -1) {
6112                 fprintf(stderr, "error: %s: no filename|pathname\n",
6113                                 argv[0]);
6114                 return CMD_HELP;
6115         } else if (pathend == -1) {
6116                 /* no options */
6117                 pathend = argc;
6118         }
6119
6120         if (pathend > argc)
6121                 return CMD_HELP;
6122
6123         if (param->fp_recursive)
6124                 param->fp_max_depth = -1;
6125         else if (param->fp_verbose & VERBOSE_DETAIL)
6126                 param->fp_max_depth = 1;
6127
6128         if (!param->fp_verbose)
6129                 param->fp_verbose = VERBOSE_DEFAULT;
6130         if (param->fp_quiet)
6131                 param->fp_verbose = VERBOSE_OBJID;
6132
6133         do {
6134                 rc = llapi_getstripe(argv[pathstart], param);
6135         } while (++pathstart < pathend && !rc);
6136
6137         if (rc)
6138                 fprintf(stderr, "error: %s failed for %s.\n",
6139                         argv[0], argv[optind - 1]);
6140         return rc;
6141 }
6142
6143 static int lfs_tgts(int argc, char **argv)
6144 {
6145         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
6146         struct find_param param;
6147         int index = 0, rc = 0;
6148
6149         if (argc > 2)
6150                 return CMD_HELP;
6151
6152         if (argc == 2 && !realpath(argv[1], path)) {
6153                 rc = -errno;
6154                 fprintf(stderr, "error: invalid path '%s': %s\n",
6155                         argv[1], strerror(-rc));
6156                 return rc;
6157         }
6158
6159         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
6160                 /* Check if we have a mount point */
6161                 if (mntdir[0] == '\0')
6162                         continue;
6163
6164                 memset(&param, 0, sizeof(param));
6165                 if (!strcmp(argv[0], "mdts"))
6166                         param.fp_get_lmv = 1;
6167
6168                 rc = llapi_ostlist(mntdir, &param);
6169                 if (rc) {
6170                         fprintf(stderr, "error: %s: failed on %s\n",
6171                                 argv[0], mntdir);
6172                 }
6173                 if (path[0] != '\0')
6174                         break;
6175                 memset(mntdir, 0, PATH_MAX);
6176         }
6177
6178         return rc;
6179 }
6180
6181 static int lfs_getstripe(int argc, char **argv)
6182 {
6183         struct find_param param = { 0 };
6184
6185         param.fp_max_depth = 1;
6186         return lfs_getstripe_internal(argc, argv, &param);
6187 }
6188
6189 /* functions */
6190 static int lfs_getdirstripe(int argc, char **argv)
6191 {
6192         struct find_param param = { 0 };
6193         struct option long_opts[] = {
6194         { .val = 'c',   .name = "mdt-count",     .has_arg = no_argument },
6195         { .val = 'D',   .name = "default",       .has_arg = no_argument },
6196         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6197         { .val = 'H',   .name = "mdt-hash",      .has_arg = no_argument },
6198         { .val = 'i',   .name = "mdt-index",     .has_arg = no_argument },
6199         { .val = 'm',   .name = "mdt-index",     .has_arg = no_argument },
6200         { .val = 'O',   .name = "obd",           .has_arg = required_argument },
6201         { .val = 'r',   .name = "recursive",     .has_arg = no_argument },
6202         { .val = 'T',   .name = "mdt-count",     .has_arg = no_argument },
6203         { .val = 'v',   .name = "verbose",       .has_arg = no_argument },
6204         { .val = 'X',   .name = "max-inherit",   .has_arg = no_argument },
6205         { .val = 'y',   .name = "yaml",          .has_arg = no_argument },
6206         { .val = LFS_INHERIT_RR_OPT,
6207                         .name = "max-inherit-rr", .has_arg = no_argument },
6208         { .name = NULL } };
6209         int c, rc;
6210
6211         param.fp_get_lmv = 1;
6212
6213         while ((c = getopt_long(argc, argv,
6214                                 "cDhHimO:rtTvXy", long_opts, NULL)) != -1) {
6215                 switch (c) {
6216                 case 'c':
6217                 case 'T':
6218                         param.fp_verbose |= VERBOSE_COUNT;
6219                         break;
6220                 case 'D':
6221                         param.fp_get_default_lmv = 1;
6222                         break;
6223 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6224                 case 't':
6225                         fprintf(stderr,
6226                                 "warning: '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6227                         fallthrough;
6228 #endif
6229                 case 'H':
6230                         param.fp_verbose |= VERBOSE_HASH_TYPE;
6231                         break;
6232                 case 'i':
6233                         fallthrough;
6234                 case 'm':
6235                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
6236                         break;
6237                 case 'O':
6238                         if (param.fp_obd_uuid) {
6239                                 fprintf(stderr,
6240                                         "%s: only one obduuid allowed",
6241                                         progname);
6242                                 return CMD_HELP;
6243                         }
6244                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
6245                         break;
6246                 case 'r':
6247                         param.fp_recursive = 1;
6248                         break;
6249                 case 'v':
6250                         param.fp_verbose |= VERBOSE_DETAIL;
6251                         break;
6252                 case 'X':
6253                         param.fp_verbose |= VERBOSE_INHERIT;
6254                         break;
6255                 case LFS_INHERIT_RR_OPT:
6256                         param.fp_verbose |= VERBOSE_INHERIT_RR;
6257                         break;
6258                 case 'y':
6259                         param.fp_yaml = 1;
6260                         break;
6261                 default:
6262                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6263                                 progname, argv[optind - 1]);
6264                         fallthrough;
6265                 case 'h':
6266                         return CMD_HELP;
6267                 }
6268         }
6269
6270         if (optind >= argc)
6271                 return CMD_HELP;
6272
6273         if (param.fp_recursive)
6274                 param.fp_max_depth = -1;
6275
6276         if (!param.fp_verbose)
6277                 param.fp_verbose = VERBOSE_DEFAULT;
6278
6279         do {
6280                 rc = llapi_getstripe(argv[optind], &param);
6281         } while (++optind < argc && !rc);
6282
6283         if (rc)
6284                 fprintf(stderr, "error: %s failed for %s.\n",
6285                         argv[0], argv[optind - 1]);
6286         return rc;
6287 }
6288
6289 enum mntdf_flags {
6290         MNTDF_INODES    = 0x0001,
6291         MNTDF_COOKED    = 0x0002,
6292         MNTDF_LAZY      = 0x0004,
6293         MNTDF_VERBOSE   = 0x0008,
6294         MNTDF_SHOW      = 0x0010,
6295         MNTDF_DECIMAL   = 0x0020,
6296 };
6297
6298 #define COOK(value, base)                                       \
6299 ({                                                              \
6300         int radix = 0;                                          \
6301         while (value > base) {                                  \
6302                 value /= base;                                  \
6303                 radix++;                                        \
6304         }                                                       \
6305         radix;                                                  \
6306 })
6307 #define UUF     "%-20s"
6308 #define CSF     "%11s"
6309 #define CDF     "%11llu"
6310 #define HDF     "%8.1f%c"
6311 #define RSF     "%4s"
6312 #define RDF     "%3d%%"
6313
6314 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
6315 {
6316         double avail, used, ratio = 0;
6317
6318         if (inodes) {
6319                 avail = st->os_ffree;
6320                 used = st->os_files - st->os_ffree;
6321         } else {
6322                 avail = st->os_bavail;
6323                 used = st->os_blocks - st->os_bfree;
6324         }
6325         if (avail + used > 0)
6326                 ratio = used / (used + avail) * 100;
6327
6328         /* Round up to match df(1) usage percentage */
6329         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
6330 }
6331
6332 /*
6333  * This is to identify various problem states for "lfs df" if .osn_err = true,
6334  * so only show flags reflecting those states by default. Informational states
6335  * are only shown with "-v" and use lower-case names to distinguish them.
6336  * UNUSED[12] were for "EROFS = 30" until 1.6 but are now available for use.
6337  */
6338 static struct obd_statfs_state_names {
6339         enum obd_statfs_state   osn_state;
6340         const char              osn_name;
6341         bool                    osn_err;
6342 } oss_names[] = {
6343         { .osn_state = OS_STATFS_DEGRADED,   .osn_name = 'D', .osn_err = true },
6344         { .osn_state = OS_STATFS_READONLY,   .osn_name = 'R', .osn_err = true },
6345         { .osn_state = OS_STATFS_NOPRECREATE,.osn_name = 'N', .osn_err = true },
6346         { .osn_state = OS_STATFS_UNUSED1,    .osn_name = '?', .osn_err = true },
6347         { .osn_state = OS_STATFS_UNUSED2,    .osn_name = '?', .osn_err = true },
6348         { .osn_state = OS_STATFS_ENOSPC,     .osn_name = 'S', .osn_err = true },
6349         { .osn_state = OS_STATFS_ENOINO,     .osn_name = 'I', .osn_err = true },
6350         { .osn_state = OS_STATFS_SUM,        .osn_name = 'a', /* aggregate */ },
6351         { .osn_state = OS_STATFS_NONROT,     .osn_name = 'f', /* flash */     },
6352 };
6353
6354 static int showdf(char *mntdir, struct obd_statfs *stat,
6355                   char *uuid, enum mntdf_flags flags,
6356                   char *type, int index, int rc)
6357 {
6358         long long avail, used, total;
6359         int ratio = 0;
6360         char *suffix = flags & MNTDF_DECIMAL ? "kMGTPEZY" : "KMGTPEZY";
6361         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
6362         char tbuf[3 * sizeof(__u64)];
6363         char ubuf[3 * sizeof(__u64)];
6364         char abuf[3 * sizeof(__u64)];
6365         char rbuf[3 * sizeof(__u64)];
6366
6367         if (!uuid || !stat)
6368                 return -EINVAL;
6369
6370         switch (rc) {
6371         case 0:
6372                 if (flags & MNTDF_INODES) {
6373                         avail = stat->os_ffree;
6374                         used = stat->os_files - stat->os_ffree;
6375                         total = stat->os_files;
6376                 } else {
6377                         int shift = flags & MNTDF_COOKED ? 0 : 10;
6378
6379                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
6380                         used  = ((stat->os_blocks - stat->os_bfree) *
6381                                  stat->os_bsize) >> shift;
6382                         total = (stat->os_blocks * stat->os_bsize) >> shift;
6383                 }
6384
6385                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
6386
6387                 if (flags & MNTDF_COOKED) {
6388                         int base = flags & MNTDF_DECIMAL ? 1000 : 1024;
6389                         double cook_val;
6390                         int i;
6391
6392                         cook_val = (double)total;
6393                         i = COOK(cook_val, base);
6394                         if (i > 0)
6395                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
6396                                          suffix[i - 1]);
6397                         else
6398                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
6399
6400                         cook_val = (double)used;
6401                         i = COOK(cook_val, base);
6402                         if (i > 0)
6403                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
6404                                          suffix[i - 1]);
6405                         else
6406                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
6407
6408                         cook_val = (double)avail;
6409                         i = COOK(cook_val, base);
6410                         if (i > 0)
6411                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
6412                                          suffix[i - 1]);
6413                         else
6414                                 snprintf(abuf, sizeof(abuf), CDF, avail);
6415                 } else {
6416                         snprintf(tbuf, sizeof(tbuf), CDF, total);
6417                         snprintf(ubuf, sizeof(tbuf), CDF, used);
6418                         snprintf(abuf, sizeof(tbuf), CDF, avail);
6419                 }
6420
6421                 sprintf(rbuf, RDF, ratio);
6422                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
6423                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
6424                 if (type)
6425                         printf("[%s:%d]", type, index);
6426
6427                 if (stat->os_state) {
6428                         uint32_t i;
6429
6430                         printf(" ");
6431                         for (i = 0; i < ARRAY_SIZE(oss_names); i++) {
6432                                 if (oss_names[i].osn_state & stat->os_state &&
6433                                     (oss_names[i].osn_err ||
6434                                      flags & MNTDF_VERBOSE))
6435                                         printf("%c", oss_names[i].osn_name);
6436                         }
6437                 }
6438
6439                 printf("\n");
6440                 break;
6441         case -ENODATA:
6442                 printf(UUF": inactive device\n", uuid);
6443                 break;
6444         default:
6445                 printf(UUF": %s\n", uuid, strerror(-rc));
6446                 break;
6447         }
6448
6449         return 0;
6450 }
6451
6452 struct ll_stat_type {
6453         int   st_op;
6454         char *st_name;
6455 };
6456
6457 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
6458
6459 struct ll_statfs_data {
6460         int                     sd_index;
6461         struct obd_statfs       sd_st;
6462 };
6463
6464 struct ll_statfs_buf {
6465         int                     sb_count;
6466         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
6467 };
6468
6469 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
6470                  int ops, struct ll_statfs_buf *lsb)
6471 {
6472         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
6473         struct obd_uuid uuid_buf;
6474         char *poolname = NULL;
6475         struct ll_stat_type types[] = {
6476                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
6477                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
6478                 { .st_name = NULL } };
6479         struct ll_stat_type *tp;
6480         __u64 ost_files = 0;
6481         __u64 ost_ffree = 0;
6482         __u32 index;
6483         __u32 type;
6484         int fd;
6485         int rc = 0;
6486         int rc2;
6487
6488         if (pool) {
6489                 poolname = strchr(pool, '.');
6490                 if (poolname) {
6491                         if (strncmp(fsname, pool, strlen(fsname))) {
6492                                 fprintf(stderr, "filesystem name incorrect\n");
6493                                 return -ENODEV;
6494                         }
6495                         poolname++;
6496                 } else
6497                         poolname = pool;
6498         }
6499
6500         fd = open(mntdir, O_RDONLY);
6501         if (fd < 0) {
6502                 rc = -errno;
6503                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
6504                         strerror(errno));
6505                 return rc;
6506         }
6507
6508         if (flags & MNTDF_SHOW) {
6509                 if (flags & MNTDF_INODES)
6510                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6511                                "UUID", "Inodes", "IUsed", "IFree",
6512                                "IUse%", "Mounted on");
6513                 else
6514                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6515                                "UUID",
6516                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
6517                                "Used", "Available", "Use%", "Mounted on");
6518         }
6519
6520         for (tp = types; tp->st_name != NULL; tp++) {
6521                 bool have_ost = false;
6522
6523                 if (!(tp->st_op & ops))
6524                         continue;
6525
6526                 for (index = 0; index < LOV_ALL_STRIPES &&
6527                      (!lsb || lsb->sb_count < LL_STATFS_MAX); index++) {
6528                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
6529                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
6530                         type = flags & MNTDF_LAZY ?
6531                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
6532                         rc2 = llapi_obd_fstatfs(fd, type, index,
6533                                                 &stat_buf, &uuid_buf);
6534                         if (rc2 == -ENODEV)
6535                                 break;
6536                         if (rc2 == -EAGAIN)
6537                                 continue;
6538                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
6539                                 if (!(flags & MNTDF_VERBOSE))
6540                                         continue;
6541                         } else if (rc2 < 0 && rc == 0) {
6542                                 rc = rc2;
6543                         }
6544
6545                         /*
6546                          * If we have OSTs then don't report MDT block counts.
6547                          * For MDT-only filesystems the expectation is that all
6548                          * layouts have a DoM component.  For filesystems with
6549                          * OSTs, files are not necessarily going to store data
6550                          * on MDTs, and MDT space is limited to a fraction of
6551                          * OST space, so don't include it in the summary.
6552                          */
6553                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
6554                                 have_ost = true;
6555                                 sum.os_blocks = 0;
6556                                 sum.os_bfree = 0;
6557                                 sum.os_bavail = 0;
6558                         }
6559
6560                         if (poolname && tp->st_op == LL_STATFS_LOV &&
6561                             llapi_search_ost(fsname, poolname,
6562                                              obd_uuid2str(&uuid_buf)) != 1)
6563                                 continue;
6564
6565                         /*
6566                          * the llapi_obd_fstatfs() call may have returned with
6567                          * an error, but if it filled in uuid_buf we will at
6568                          * lease use that to print out a message for that OBD.
6569                          * If we didn't get anything in the uuid_buf, then fill
6570                          * it in so that we can print an error message.
6571                          */
6572                         if (uuid_buf.uuid[0] == '\0')
6573                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
6574                                          "%s%04x", tp->st_name, index);
6575                         if (!rc && lsb) {
6576                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
6577                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
6578                                 lsb->sb_count++;
6579                         }
6580                         if (flags & MNTDF_SHOW)
6581                                 showdf(mntdir, &stat_buf,
6582                                        obd_uuid2str(&uuid_buf), flags,
6583                                        tp->st_name, index, rc2);
6584
6585                         if (rc2)
6586                                 continue;
6587
6588                         if (tp->st_op == LL_STATFS_LMV) {
6589                                 sum.os_ffree += stat_buf.os_ffree;
6590                                 sum.os_files += stat_buf.os_files;
6591                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
6592                                 ost_files += stat_buf.os_files;
6593                                 ost_ffree += stat_buf.os_ffree;
6594                         }
6595                         sum.os_blocks += stat_buf.os_blocks *
6596                                          stat_buf.os_bsize;
6597                         sum.os_bfree  += stat_buf.os_bfree *
6598                                          stat_buf.os_bsize;
6599                         sum.os_bavail += stat_buf.os_bavail *
6600                                          stat_buf.os_bsize;
6601                 }
6602         }
6603
6604         close(fd);
6605
6606         /*
6607          * If we have _some_ OSTs, but don't have as many free objects on the
6608          * OST as inodes on the MDTs, reduce the reported number of inodes
6609          * to compensate, so that the "inodes in use" number is correct.
6610          * This should be kept in sync with ll_statfs_internal().
6611          */
6612         if (ost_files && ost_ffree < sum.os_ffree) {
6613                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
6614                 sum.os_ffree = ost_ffree;
6615         }
6616         if (flags & MNTDF_SHOW) {
6617                 printf("\n");
6618                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
6619                 printf("\n");
6620         }
6621
6622         return rc;
6623 }
6624
6625 enum {
6626         LAYOUT_INHERIT_UNSET    = -2,
6627 };
6628
6629 /* functions */
6630 static int lfs_setdirstripe(int argc, char **argv)
6631 {
6632         char *dname;
6633         struct lfs_setstripe_args lsa = { 0 };
6634         struct llapi_stripe_param *param = NULL;
6635         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
6636         char *end;
6637         int c;
6638         char *mode_opt = NULL;
6639         bool default_stripe = false;
6640         bool delete = false;
6641         bool foreign_mode = false;
6642         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
6643         mode_t previous_mode = 0;
6644         char *xattr = NULL;
6645         __u32 type = LU_FOREIGN_TYPE_SYMLINK, flags = 0;
6646         int max_inherit = LAYOUT_INHERIT_UNSET;
6647         int max_inherit_rr = LAYOUT_INHERIT_UNSET;
6648         struct option long_opts[] = {
6649         { .val = 'c',   .name = "count",        .has_arg = required_argument },
6650         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
6651         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
6652         { .val = 'D',   .name = "default",      .has_arg = no_argument },
6653         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
6654         { .val = LFS_LAYOUT_FLAGS_OPT,
6655                         .name = "flags",        .has_arg = required_argument },
6656         { .val = LFS_LAYOUT_FOREIGN_OPT,
6657                         .name = "foreign",      .has_arg = optional_argument},
6658         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6659         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
6660 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
6661         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
6662         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
6663 #else
6664 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
6665         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6666         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6667 #endif
6668 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6669         { .val = 'i',   .name = "index",        .has_arg = required_argument },
6670 #endif
6671         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
6672 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6673         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
6674 #endif
6675         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
6676         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
6677         { .val = 'X',   .name = "max-inherit",  .has_arg = required_argument },
6678         { .val = LFS_INHERIT_RR_OPT,
6679                         .name = "max-inherit-rr", .has_arg = required_argument},
6680 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
6681         { .name = NULL } };
6682         int result = 0;
6683
6684         setstripe_args_init(&lsa);
6685
6686         while ((c = getopt_long(argc, argv, "c:dDi:hH:m:o:t:T:x:X:",
6687                                 long_opts, NULL)) >= 0) {
6688                 switch (c) {
6689                 case 0:
6690                         /* Long options. */
6691                         break;
6692                 case 'c':
6693                 case 'T':
6694                         errno = 0;
6695                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
6696                         if (errno != 0 || *end != '\0' ||
6697                             lsa.lsa_stripe_count < -1 ||
6698                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
6699                                 fprintf(stderr,
6700                                         "%s: invalid stripe count '%s'\n",
6701                                         progname, optarg);
6702                                 return CMD_HELP;
6703                         }
6704                         break;
6705                 case 'd':
6706                         delete = true;
6707                         default_stripe = true;
6708                         break;
6709                 case 'D':
6710                         default_stripe = true;
6711                         break;
6712                 case LFS_LAYOUT_FOREIGN_OPT:
6713                         if (optarg) {
6714                                 /* check pure numeric */
6715                                 type = strtoul(optarg, &end, 0);
6716                                 if (*end) {
6717                                         /* check name */
6718                                         type = check_foreign_type_name(optarg);
6719                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
6720                                                 fprintf(stderr,
6721                                                         "%s %s: unknown foreign type '%s'\n",
6722                                                         progname, argv[0],
6723                                                         optarg);
6724                                                 return CMD_HELP;
6725                                         }
6726                                 } else if (type >= UINT32_MAX) {
6727                                         fprintf(stderr,
6728                                                 "%s %s: invalid foreign type '%s'\n",
6729                                                 progname, argv[0], optarg);
6730                                         return CMD_HELP;
6731                                 }
6732                         }
6733                         foreign_mode = true;
6734                         break;
6735                 case LFS_LAYOUT_FLAGS_OPT:
6736                         errno = 0;
6737                         flags = strtoul(optarg, &end, 16);
6738                         if (errno != 0 || *end != '\0' ||
6739                             flags >= UINT32_MAX) {
6740                                 fprintf(stderr,
6741                                         "%s %s: invalid hex flags '%s'\n",
6742                                         progname, argv[0], optarg);
6743                                 return CMD_HELP;
6744                         }
6745                         if (!foreign_mode) {
6746                                 fprintf(stderr,
6747                                         "%s %s: hex flags must be specified with --foreign option\n",
6748                                         progname, argv[0]);
6749                                 return CMD_HELP;
6750                         }
6751                         break;
6752 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6753                 case 't':
6754                         fprintf(stderr,
6755                                 "warning: '--hash-type' and '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6756                         fallthrough;
6757 #endif
6758                 case 'H':
6759                         lsa.lsa_pattern = check_hashtype(optarg);
6760                         if (lsa.lsa_pattern == 0) {
6761                                 fprintf(stderr,
6762                                         "%s %s: bad directory hash type '%s'\n",
6763                                         progname, argv[0], optarg);
6764                                 return CMD_HELP;
6765                         }
6766                         break;
6767                 case 'i':
6768 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
6769                 case 'm':
6770 #endif
6771 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6772                         if (strcmp(argv[optind - 1], "--index") == 0)
6773                                 fprintf(stderr,
6774                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
6775                                         progname, argv[0]);
6776 #endif
6777                         lsa.lsa_nr_tgts = parse_targets(mdts,
6778                                                 sizeof(mdts) / sizeof(__u32),
6779                                                 lsa.lsa_nr_tgts, optarg, NULL);
6780                         if (lsa.lsa_nr_tgts < 0) {
6781                                 fprintf(stderr,
6782                                         "%s %s: invalid MDT target(s) '%s'\n",
6783                                         progname, argv[0], optarg);
6784                                 return CMD_HELP;
6785                         }
6786
6787                         lsa.lsa_tgts = mdts;
6788                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6789                                 lsa.lsa_stripe_off = mdts[0];
6790                         break;
6791 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
6792                 case 'm':
6793                         fprintf(stderr,
6794                                 "warning: '-m' is deprecated, use '--mode' or '-o' instead\n");
6795 #endif
6796                 case 'o':
6797                         mode_opt = optarg;
6798                         break;
6799                 case 'x':
6800                         xattr = optarg;
6801                         break;
6802                 case 'X':
6803                         errno = 0;
6804                         max_inherit = strtol(optarg, &end, 10);
6805                         if (errno != 0 || *end != '\0' || max_inherit < -2) {
6806                                 fprintf(stderr,
6807                                         "%s %s: invalid max-inherit '%s'\n",
6808                                         progname, argv[0], optarg);
6809                                 return CMD_HELP;
6810                         }
6811                         if (max_inherit == 0) {
6812                                 max_inherit = LMV_INHERIT_NONE;
6813                         } else if (max_inherit == -1) {
6814                                 max_inherit = LMV_INHERIT_UNLIMITED;
6815                         } else if (max_inherit > LMV_INHERIT_MAX) {
6816                                 fprintf(stderr,
6817                                         "%s %s: max-inherit %d exceeds maximum %u\n",
6818                                         progname, argv[0], max_inherit,
6819                                         LMV_INHERIT_MAX);
6820                                 return CMD_HELP;
6821                         }
6822                         break;
6823                 case LFS_INHERIT_RR_OPT:
6824                         if (!default_stripe) {
6825                                 fprintf(stderr,
6826                                         "%s %s: '--max-inherit-rr' must be specified with '-D'\n",
6827                                         progname, argv[0]);
6828                                 return CMD_HELP;
6829                         }
6830                         errno = 0;
6831                         max_inherit_rr = strtol(optarg, &end, 10);
6832                         if (errno != 0 || *end != '\0' || max_inherit_rr < -2) {
6833                                 fprintf(stderr,
6834                                         "%s %s: invalid max-inherit-rr '%s'\n",
6835                                         progname, argv[0], optarg);
6836                                 return CMD_HELP;
6837                         }
6838                         if (max_inherit_rr == 0) {
6839                                 max_inherit_rr = LMV_INHERIT_RR_NONE;
6840                         } else if (max_inherit_rr == -1) {
6841                                 max_inherit_rr = LMV_INHERIT_RR_UNLIMITED;
6842                         } else if (max_inherit_rr > LMV_INHERIT_RR_MAX) {
6843                                 fprintf(stderr,
6844                                         "%s %s: max-inherit-rr %d exceeds maximum %u\n",
6845                                         progname, argv[0], max_inherit_rr,
6846                                         LMV_INHERIT_RR_MAX);
6847                                 return CMD_HELP;
6848                         }
6849                         break;
6850                 default:
6851                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6852                                 progname, argv[optind - 1]);
6853                         fallthrough;
6854                 case 'h':
6855                         return CMD_HELP;
6856                 }
6857         }
6858
6859         if (optind == argc) {
6860                 fprintf(stderr, "%s %s: DIR must be specified\n",
6861                         progname, argv[0]);
6862                 return CMD_HELP;
6863         }
6864
6865         if (xattr && !foreign_mode) {
6866                 /*
6867                  * only print a warning as this is armless and will be
6868                  * ignored
6869                  */
6870                 fprintf(stderr,
6871                         "%s %s: xattr has been specified for non-foreign layout\n",
6872                         progname, argv[0]);
6873         } else if (foreign_mode && !xattr) {
6874                 fprintf(stderr,
6875                         "%s %s: xattr must be provided in foreign mode\n",
6876                         progname, argv[0]);
6877                 return CMD_HELP;
6878         }
6879
6880         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
6881             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
6882                 fprintf(stderr,
6883                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
6884                         progname, argv[0]);
6885                 return CMD_HELP;
6886         }
6887
6888         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
6889             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
6890                 /* if no parameters set, create directory on least-used MDTs */
6891                 lsa.lsa_stripe_off = LMV_OFFSET_DEFAULT;
6892                 lsa.lsa_stripe_count = 1;
6893         }
6894
6895         if (delete &&
6896             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
6897              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
6898                 fprintf(stderr,
6899                         "%s %s: cannot specify -d with -c or -i options\n",
6900                         progname, argv[0]);
6901                 return CMD_HELP;
6902         }
6903
6904         if (mode_opt) {
6905                 mode = strtoul(mode_opt, &end, 8);
6906                 if (*end != '\0') {
6907                         fprintf(stderr,
6908                                 "%s %s: bad MODE '%s'\n",
6909                                 progname, argv[0], mode_opt);
6910                         return CMD_HELP;
6911                 }
6912                 previous_mode = umask(0);
6913         }
6914
6915         /* check max-inherit and warn user in some cases */
6916         if (default_stripe &&
6917             (lsa.lsa_stripe_count < 0 || lsa.lsa_stripe_count > 1)) {
6918                 if (max_inherit == LMV_INHERIT_UNLIMITED)
6919                         fprintf(stderr,
6920                         "%s %s: unrecommended max-inherit=-1 when default stripe-count=%lld\n",
6921                         progname, argv[0], lsa.lsa_stripe_count);
6922                 else if (max_inherit > LMV_INHERIT_DEFAULT_STRIPED + 2 &&
6923                          max_inherit != LMV_INHERIT_NONE)
6924                         fprintf(stderr,
6925                                 "%s %s: unrecommended max-inherit=%d when default stripe-count=%lld\n",
6926                                 progname, argv[0], max_inherit,
6927                                 lsa.lsa_stripe_count);
6928         }
6929
6930         if (max_inherit_rr != LAYOUT_INHERIT_UNSET &&
6931             lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
6932             lsa.lsa_stripe_off != LMV_OFFSET_DEFAULT) {
6933                 fprintf(stderr,
6934                         "%s %s: max-inherit-rr needs mdt-index=-1, not %lld\n",
6935                         progname, argv[0], lsa.lsa_stripe_off);
6936                 return CMD_HELP;
6937         }
6938
6939         /* foreign LMV/dir case */
6940         if (foreign_mode) {
6941                 if (argc > optind + 1) {
6942                         fprintf(stderr,
6943                                 "%s %s: cannot specify multiple foreign dirs\n",
6944                                 progname, argv[0]);
6945                         return CMD_HELP;
6946                 }
6947
6948                 dname = argv[optind];
6949                 result = llapi_dir_create_foreign(dname, mode, type, flags,
6950                                                   xattr);
6951                 if (result != 0)
6952                         fprintf(stderr,
6953                                 "%s mkdir: can't create foreign dir '%s': %s\n",
6954                                 progname, dname, strerror(-result));
6955                 return result;
6956         }
6957
6958         /*
6959          * initialize stripe parameters, in case param is converted to specific,
6960          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
6961          */
6962         param = calloc(1, offsetof(typeof(*param),
6963                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
6964                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
6965         if (!param) {
6966                 fprintf(stderr,
6967                         "%s %s: cannot allocate memory for parameters: %s\n",
6968                         progname, argv[0], strerror(ENOMEM));
6969                 return CMD_HELP;
6970         }
6971
6972         /* if "lfs setdirstripe -D -i -1" is used, assume 1-stripe directory */
6973         if (default_stripe && lsa.lsa_stripe_off == LMV_OFFSET_DEFAULT &&
6974             (lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT ||
6975              lsa.lsa_stripe_count == 0))
6976                 lsa.lsa_stripe_count = 1;
6977         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
6978                 param->lsp_stripe_count = lsa.lsa_stripe_count;
6979         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6980                 param->lsp_stripe_offset = LMV_OFFSET_DEFAULT;
6981         else
6982                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
6983         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
6984                 param->lsp_stripe_pattern = lsa.lsa_pattern;
6985         else
6986                 param->lsp_stripe_pattern = LMV_HASH_TYPE_UNKNOWN;
6987         param->lsp_pool = lsa.lsa_pool_name;
6988         param->lsp_is_specific = false;
6989         if (max_inherit == LAYOUT_INHERIT_UNSET) {
6990                 if (lsa.lsa_stripe_count == 0 || lsa.lsa_stripe_count == 1)
6991                         max_inherit = LMV_INHERIT_DEFAULT_PLAIN;
6992                 else
6993                         max_inherit = LMV_INHERIT_DEFAULT_STRIPED;
6994         }
6995         param->lsp_max_inherit = max_inherit;
6996         if (default_stripe) {
6997
6998                 if (max_inherit_rr == LAYOUT_INHERIT_UNSET)
6999                         max_inherit_rr = LMV_INHERIT_RR_DEFAULT;
7000                 param->lsp_max_inherit_rr = max_inherit_rr;
7001         }
7002         if (strcmp(argv[0], "mkdir") == 0)
7003                 param->lsp_is_create = true;
7004         if (lsa.lsa_nr_tgts > 1) {
7005                 if (lsa.lsa_stripe_count > 0 &&
7006                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
7007                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
7008                         fprintf(stderr,
7009                                 "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
7010                                 argv[0], lsa.lsa_stripe_count,
7011                                 lsa.lsa_nr_tgts);
7012                         free(param);
7013                         return CMD_HELP;
7014                 }
7015
7016                 param->lsp_is_specific = true;
7017                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
7018                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
7019         }
7020
7021         dname = argv[optind];
7022         do {
7023                 if (default_stripe) {
7024                         result = llapi_dir_set_default_lmv(dname, param);
7025                         if (result)
7026                                 fprintf(stderr,
7027                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
7028                                         progname, dname, strerror(-result));
7029                         continue;
7030                 }
7031
7032                 result = llapi_dir_create(dname, mode, param);
7033                 if (result)
7034                         fprintf(stderr,
7035                                 "%s setdirstripe: cannot create dir '%s': %s\n",
7036                                 progname, dname, strerror(-result));
7037         } while (!result && (dname = argv[++optind]));
7038
7039         if (mode_opt)
7040                 umask(previous_mode);
7041
7042         free(param);
7043         return result;
7044 }
7045
7046 /* functions */
7047 static int lfs_rmentry(int argc, char **argv)
7048 {
7049         char *dname;
7050         int   index;
7051         int   result = 0;
7052
7053         if (argc <= 1) {
7054                 fprintf(stderr, "error: %s: missing dirname\n",
7055                         argv[0]);
7056                 return CMD_HELP;
7057         }
7058
7059         index = 1;
7060         dname = argv[index];
7061         while (dname) {
7062                 result = llapi_direntry_remove(dname);
7063                 if (result) {
7064                         fprintf(stderr,
7065                                 "error: %s: remove dir entry '%s' failed\n",
7066                                 argv[0], dname);
7067                         break;
7068                 }
7069                 dname = argv[++index];
7070         }
7071         return result;
7072 }
7073
7074 static int lfs_unlink_foreign(int argc, char **argv)
7075 {
7076         char *name;
7077         int   index;
7078         int   result = 0;
7079
7080         if (argc <= 1) {
7081                 fprintf(stderr, "error: %s: missing pathname\n",
7082                         argv[0]);
7083                 return CMD_HELP;
7084         }
7085
7086         index = 1;
7087         name = argv[index];
7088         while (name != NULL) {
7089                 result = llapi_unlink_foreign(name);
7090                 if (result) {
7091                         fprintf(stderr,
7092                                 "error: %s: unlink foreign entry '%s' failed\n",
7093                                 argv[0], name);
7094                         break;
7095                 }
7096                 name = argv[++index];
7097         }
7098         return result;
7099 }
7100
7101 static int lfs_mv(int argc, char **argv)
7102 {
7103         struct lmv_user_md lmu = { LMV_USER_MAGIC };
7104         struct find_param param = {
7105                 .fp_max_depth = -1,
7106                 .fp_mdt_index = -1,
7107         };
7108         char *end;
7109         int c;
7110         int rc = 0;
7111         struct option long_opts[] = {
7112         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
7113         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
7114         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
7115         { .name = NULL } };
7116
7117         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
7118                 switch (c) {
7119 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7120                 case 'M':
7121                         fprintf(stderr,
7122                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
7123 #endif
7124                 case 'm':
7125                         errno = 0;
7126                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
7127                         if (errno != 0 || *end != '\0' ||
7128                             lmu.lum_stripe_offset >= UINT32_MAX) {
7129                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
7130                                         progname, optarg);
7131                                 return CMD_HELP;
7132                         }
7133                         break;
7134                 case 'v':
7135                         param.fp_verbose = VERBOSE_DETAIL;
7136                         break;
7137                 default:
7138                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
7139                                 progname, argv[optind - 1]);
7140                         return CMD_HELP;
7141                 }
7142         }
7143
7144         if (lmu.lum_stripe_offset == LMV_OFFSET_DEFAULT) {
7145                 fprintf(stderr, "%s mv: MDT index must be specified\n",
7146                         progname);
7147                 return CMD_HELP;
7148         }
7149
7150         if (optind >= argc) {
7151                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
7152                 return CMD_HELP;
7153         }
7154
7155         lmu.lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
7156
7157         /* initialize migrate mdt parameters */
7158         param.fp_lmv_md = &lmu;
7159         param.fp_migrate = 1;
7160         rc = llapi_migrate_mdt(argv[optind], &param);
7161         if (rc != 0)
7162                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
7163                         progname, argv[optind], lmu.lum_stripe_offset,
7164                         strerror(-rc));
7165         return rc;
7166 }
7167
7168 static int lfs_osts(int argc, char **argv)
7169 {
7170         return lfs_tgts(argc, argv);
7171 }
7172
7173 static int lfs_mdts(int argc, char **argv)
7174 {
7175         return lfs_tgts(argc, argv);
7176 }
7177
7178 static int lfs_df(int argc, char **argv)
7179 {
7180         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
7181         enum mntdf_flags flags = MNTDF_SHOW;
7182         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
7183         int c, rc = 0, rc1 = 0, index = 0, arg_idx = 0;
7184         char fsname[PATH_MAX] = "", *pool_name = NULL;
7185         struct option long_opts[] = {
7186         { .val = 'h',   .name = "human-readable", .has_arg = no_argument },
7187         { .val = 'H',   .name = "si",           .has_arg = no_argument },
7188         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
7189         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
7190         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
7191         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
7192         { .name = NULL} };
7193
7194         while ((c = getopt_long(argc, argv, "hHilp:v", long_opts, NULL)) != -1) {
7195                 switch (c) {
7196                 case 'h':
7197                         flags = (flags & ~MNTDF_DECIMAL) | MNTDF_COOKED;
7198                         break;
7199                 case 'H':
7200                         flags |= MNTDF_COOKED | MNTDF_DECIMAL;
7201                         break;
7202                 case 'i':
7203                         flags |= MNTDF_INODES;
7204                         break;
7205                 case 'l':
7206                         flags |= MNTDF_LAZY;
7207                         break;
7208                 case 'p':
7209                         pool_name = optarg;
7210                         break;
7211                 case 'v':
7212                         flags |= MNTDF_VERBOSE;
7213                         break;
7214                 default:
7215                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7216                                 progname, argv[optind - 1]);
7217                         return CMD_HELP;
7218                 }
7219         }
7220
7221         /* Handle case where path is not specified */
7222         if (optind == argc) {
7223                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7224                         /* Check if we have a mount point */
7225                         if (mntdir[0] == '\0')
7226                                 continue;
7227
7228                         rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
7229                         if (rc || path[0] != '\0')
7230                                 break;
7231
7232                         fsname[0] = '\0'; /* avoid matching in next loop */
7233                         mntdir[0] = '\0'; /* avoid matching in next loop */
7234                         path[0] = '\0'; /* clean for next loop */
7235                 }
7236                 return rc;
7237         }
7238
7239         /* Loop through all the remaining arguments. These are Lustre FS
7240          * paths.
7241          */
7242         for (arg_idx = optind; arg_idx <= argc - 1; arg_idx++) {
7243                 bool valid = false;
7244
7245                 fsname[0] = '\0'; /* start clean */
7246                 mntdir[0] = '\0'; /* start clean */
7247                 path[0] = '\0';   /* start clean */
7248
7249                 /* path does not exists at all */
7250                 if (!realpath(argv[arg_idx], path)) {
7251                         rc = -errno;
7252                         fprintf(stderr, "error: invalid path '%s': %s\n",
7253                                 argv[arg_idx], strerror(-rc));
7254                         /* save first seen error */
7255                         if (!rc1)
7256                                 rc1 = rc;
7257
7258                         continue;
7259                 }
7260
7261                 /* path exists but may not be a Lustre filesystem */
7262                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7263                         /* Check if we have a mount point */
7264                         if (mntdir[0] == '\0')
7265                                 continue;
7266
7267                         rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
7268                         if (rc || path[0] != '\0') {
7269                                 valid = true;
7270
7271                                 /* save first seen error */
7272                                 if (!rc1)
7273                                         rc1 = rc;
7274                                 break;
7275                         }
7276                 }
7277
7278                 if (!valid) {
7279                         llapi_printf(LLAPI_MSG_ERROR,
7280                                      "%s:%s Not a Lustre filesystem\n",
7281                                      argv[0], argv[arg_idx]);
7282                         /* save first seen error */
7283                         if (!rc1)
7284                                 rc1 = -EOPNOTSUPP;
7285                 }
7286         }
7287
7288         return rc1;
7289 }
7290
7291 static int print_instance(const char *mntdir, char *buf, size_t buflen,
7292                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
7293 {
7294         int rc = 0;
7295
7296         if (opt_fsname == opt_instance) { /* both true or both false */
7297                 rc = llapi_getname(mntdir, buf, buflen);
7298         } else if (opt_fsname) {
7299                 /*
7300                  * llapi_search_mounts() fills @buf with fsname, but that is not
7301                  * called if explicit paths are specified on the command-line
7302                  */
7303                 if (buf[0] == '\0')
7304                         rc = llapi_get_fsname(mntdir, buf, buflen);
7305         } else /* if (opt_instance) */ {
7306                 rc = llapi_get_instance(mntdir, buf, buflen);
7307         }
7308
7309         if (rc < 0) {
7310                 fprintf(stderr, "cannot get instance for '%s': %s\n",
7311                         mntdir, strerror(-rc));
7312                 return rc;
7313         }
7314
7315         if (opt_mntdir)
7316                 printf("%s %s\n", buf, mntdir);
7317         else
7318                 printf("%s\n", buf);
7319
7320         return 0;
7321 }
7322
7323 static int lfs_getname(int argc, char **argv)
7324 {
7325         struct option long_opts[] = {
7326         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7327         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
7328         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
7329         { .name = NULL} };
7330         bool opt_instance = false, opt_fsname = false;
7331         char fsname[PATH_MAX] = "";
7332         int rc = 0, rc2, c;
7333
7334         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
7335                 switch (c) {
7336                 case 'i':
7337                         opt_instance = true;
7338                         break;
7339                 case 'n':
7340                         opt_fsname = true;
7341                         break;
7342                 default:
7343                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7344                                 progname, argv[optind - 1]);
7345                         fallthrough;
7346                 case 'h':
7347                         return CMD_HELP;
7348                 }
7349         }
7350
7351         if (optind == argc) { /* no paths specified, get all paths. */
7352                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
7353                 int index = 0;
7354
7355                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7356                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
7357                                              opt_instance, opt_fsname, true);
7358                         if (!rc)
7359                                 rc = rc2;
7360                         path[0] = fsname[0] = mntdir[0] = '\0';
7361                 }
7362         } else { /* paths specified, only attempt to search these. */
7363                 bool opt_mntdir;
7364
7365                 /* if only one path is given, print only requested info */
7366                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
7367
7368                 for (; optind < argc; optind++) {
7369                         rc2 = print_instance(argv[optind], fsname,
7370                                              sizeof(fsname), opt_instance,
7371                                              opt_fsname, opt_mntdir);
7372                         if (!rc)
7373                                 rc = rc2;
7374                         fsname[0] = '\0';
7375                 }
7376         }
7377
7378         return rc;
7379 }
7380
7381 static int lfs_check(int argc, char **argv)
7382 {
7383         char mntdir[PATH_MAX] = {'\0'};
7384         int num_types = 1;
7385         char *obd_types[3];
7386         char obd_type1[4];
7387         char obd_type2[4];
7388         char obd_type3[4];
7389         int rc;
7390
7391         if (argc != 2) {
7392                 fprintf(stderr, "%s check: server type must be specified\n",
7393                         progname);
7394                 return CMD_HELP;
7395         }
7396
7397         obd_types[0] = obd_type1;
7398         obd_types[1] = obd_type2;
7399         obd_types[2] = obd_type3;
7400
7401         if (strcmp(argv[1], "osts") == 0) {
7402                 strcpy(obd_types[0], "osc");
7403         } else if (strcmp(argv[1], "mdts") == 0 ||
7404                    strcmp(argv[1], "mds") == 0) {
7405                 strcpy(obd_types[0], "mdc");
7406         } else if (strcmp(argv[1], "mgts") == 0) {
7407                 strcpy(obd_types[0], "mgc");
7408         } else if (strcmp(argv[1], "all") == 0 ||
7409                    strcmp(argv[1], "servers") == 0) {
7410                 num_types = 3;
7411                 strcpy(obd_types[0], "osc");
7412                 strcpy(obd_types[1], "mdc");
7413                 strcpy(obd_types[2], "mgc");
7414         } else {
7415                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
7416                         progname, argv[1]);
7417                 return CMD_HELP;
7418         }
7419
7420         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
7421         if (rc < 0 || mntdir[0] == '\0') {
7422                 fprintf(stderr,
7423                         "%s check: cannot find mounted Lustre filesystem: %s\n",
7424                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
7425                 return rc;
7426         }
7427
7428         rc = llapi_target_check(num_types, obd_types, mntdir);
7429         if (rc)
7430                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
7431                         progname, argv[1], strerror(-rc));
7432
7433         return rc;
7434 }
7435
7436 #ifdef HAVE_SYS_QUOTA_H
7437 #define ADD_OVERFLOW(a, b) \
7438                      ((((a) + (b)) < (a)) ? \
7439                       ((a) = ULONG_MAX) : ((a) = (a) + (b)))
7440
7441 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
7442  * returns the value or ULONG_MAX on integer overflow or incorrect format
7443  * Notes:
7444  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
7445  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
7446  *        3. empty integer value is interpreted as 0
7447  */
7448 static unsigned long str2sec(const char *timestr)
7449 {
7450         const char spec[] = "smhdw";
7451         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7452         unsigned long val = 0;
7453         char *tail;
7454
7455         if (strpbrk(timestr, spec) == NULL) {
7456                 /*
7457                  * no specifiers inside the time string,
7458                  * should treat it as an integer value
7459                  */
7460                 val = strtoul(timestr, &tail, 10);
7461                 return *tail ? ULONG_MAX : val;
7462         }
7463
7464         /* format string is XXwXXdXXhXXmXXs */
7465         while (*timestr) {
7466                 unsigned long v;
7467                 int ind;
7468                 char *ptr;
7469
7470                 v = strtoul(timestr, &tail, 10);
7471                 if (v == ULONG_MAX || *tail == '\0')
7472                         /*
7473                          * value too large (ULONG_MAX or more)
7474                          * or missing specifier
7475                          */
7476                         goto error;
7477
7478                 ptr = strchr(spec, *tail);
7479                 if (!ptr)
7480                         /* unknown specifier */
7481                         goto error;
7482
7483                 ind = ptr - spec;
7484
7485                 /* check if product will overflow the type */
7486                 if (!(v < ULONG_MAX / mult[ind]))
7487                         goto error;
7488
7489                 ADD_OVERFLOW(val, mult[ind] * v);
7490                 if (val == ULONG_MAX)
7491                         goto error;
7492
7493                 timestr = tail + 1;
7494         }
7495
7496         return val;
7497
7498 error:
7499         return ULONG_MAX;
7500 }
7501
7502 #define ARG2ULL(nr, str, def_units)                                     \
7503 do {                                                                    \
7504         unsigned long long limit, units = def_units;                    \
7505         int rc;                                                         \
7506                                                                         \
7507         rc = llapi_parse_size(str, &limit, &units, 1);                  \
7508         if (rc < 0) {                                                   \
7509                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
7510                         progname, str);                                 \
7511                 return CMD_HELP;                                        \
7512         }                                                               \
7513         nr = limit;                                                     \
7514 } while (0)
7515
7516 static inline int has_times_option(int argc, char **argv)
7517 {
7518         int i;
7519
7520         for (i = 1; i < argc; i++)
7521                 if (!strcmp(argv[i], "-t"))
7522                         return 1;
7523
7524         return 0;
7525 }
7526
7527 static inline int lfs_verify_poolarg(char *pool)
7528 {
7529         if (strnlen(optarg, LOV_MAXPOOLNAME + 1) > LOV_MAXPOOLNAME) {
7530                 fprintf(stderr,
7531                         "Pool name '%.*s' is longer than %d\n",
7532                         LOV_MAXPOOLNAME, pool, LOV_MAXPOOLNAME);
7533                 return 1;
7534         }
7535         return 0;
7536 }
7537
7538 /* special grace time, only notify the user when its quota is over soft limit
7539  * but doesn't block new writes until the hard limit is reached.
7540  */
7541 #define NOTIFY_GRACE            "notify"
7542 #define NOTIFY_GRACE_TIME       LQUOTA_GRACE_MASK
7543
7544 #ifndef toqb
7545 static inline __u64 lustre_stoqb(size_t space)
7546 {
7547         return (space + QIF_DQBLKSIZE - 1) >> QIF_DQBLKSIZE_BITS;
7548 }
7549 #else
7550 #define lustre_stoqb   toqb
7551 #endif
7552
7553 int lfs_setquota_times(int argc, char **argv, struct if_quotactl *qctl)
7554 {
7555         int c, rc;
7556         char *mnt, *obd_type = (char *)qctl->obd_type;
7557         struct obd_dqblk *dqb = &qctl->qc_dqblk;
7558         struct obd_dqinfo *dqi = &qctl->qc_dqinfo;
7559         struct option long_opts[] = {
7560         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
7561         { .val = 'g',   .name = "group",        .has_arg = no_argument },
7562         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7563         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
7564         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
7565         { .val = 't',   .name = "times",        .has_arg = no_argument },
7566         { .val = 'u',   .name = "user",         .has_arg = no_argument },
7567         { .val = LFS_POOL_OPT,
7568                         .name = "pool",         .has_arg = required_argument },
7569         { .name = NULL } };
7570         int qtype;
7571
7572         qctl->qc_cmd  = LUSTRE_Q_SETINFO;
7573         qctl->qc_type = ALLQUOTA;
7574
7575         while ((c = getopt_long(argc, argv, "b:ghi:ptu",
7576                                 long_opts, NULL)) != -1) {
7577                 switch (c) {
7578                 case 'u':
7579                         qtype = USRQUOTA;
7580                         goto quota_type;
7581                 case 'g':
7582                         qtype = GRPQUOTA;
7583                         goto quota_type;
7584                 case 'p':
7585                         qtype = PRJQUOTA;
7586 quota_type:
7587                         if (qctl->qc_type != ALLQUOTA) {
7588                                 fprintf(stderr,
7589                                         "%s: -u/g/p cannot be used more than once\n",
7590                                         progname);
7591                                 return CMD_HELP;
7592                         }
7593                         qctl->qc_type = qtype;
7594                         break;
7595                 case 'b':
7596                         if (strncmp(optarg, NOTIFY_GRACE,
7597                                     strlen(NOTIFY_GRACE)) == 0) {
7598                                 dqi->dqi_bgrace = NOTIFY_GRACE_TIME;
7599                         } else {
7600                                 dqi->dqi_bgrace = str2sec(optarg);
7601                                 if (dqi->dqi_bgrace >= NOTIFY_GRACE_TIME) {
7602                                         fprintf(stderr,
7603                                                 "%s: bad block-grace: %s\n",
7604                                                 progname, optarg);
7605                                         return CMD_HELP;
7606                                 }
7607                         }
7608                         dqb->dqb_valid |= QIF_BTIME;
7609                         break;
7610                 case 'i':
7611                         if (strncmp(optarg, NOTIFY_GRACE,
7612                                     strlen(NOTIFY_GRACE)) == 0) {
7613                                 dqi->dqi_igrace = NOTIFY_GRACE_TIME;
7614                         } else {
7615                                 dqi->dqi_igrace = str2sec(optarg);
7616                                 if (dqi->dqi_igrace >= NOTIFY_GRACE_TIME) {
7617                                         fprintf(stderr,
7618                                                 "%s: bad inode-grace: %s\n",
7619                                                 progname, optarg);
7620                                         return CMD_HELP;
7621                                 }
7622                         }
7623                         dqb->dqb_valid |= QIF_ITIME;
7624                         break;
7625                 case 't': /* Yes, of course! */
7626                         break;
7627                 case LFS_POOL_OPT:
7628                         if (lfs_verify_poolarg(optarg))
7629                                 return -1;
7630                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7631                         qctl->qc_cmd  = LUSTRE_Q_SETINFOPOOL;
7632                         break;
7633                 /* getopt prints error message for us when opterr != 0 */
7634                 default:
7635                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7636                                 progname, argv[optind - 1]);
7637                         fallthrough;
7638                 case 'h':
7639                         return CMD_HELP;
7640                 }
7641         }
7642
7643         if (qctl->qc_type == ALLQUOTA) {
7644                 fprintf(stderr, "%s: neither -u, -g nor -p specified\n",
7645                         progname);
7646                 return CMD_HELP;
7647         }
7648
7649         if (optind != argc - 1) {
7650                 fprintf(stderr, "%s: unexpected parameter '%s'\n",
7651                         progname, argv[optind + 1]);
7652                 return CMD_HELP;
7653         }
7654
7655         mnt = argv[optind];
7656         rc = llapi_quotactl(mnt, qctl);
7657         if (rc) {
7658                 if (*obd_type)
7659                         fprintf(stderr, "%s %s ", obd_type,
7660                                 obd_uuid2str(&qctl->obd_uuid));
7661                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
7662                 return rc;
7663         }
7664
7665         return 0;
7666 }
7667
7668 #define BSLIMIT (1 << 0)
7669 #define BHLIMIT (1 << 1)
7670 #define ISLIMIT (1 << 2)
7671 #define IHLIMIT (1 << 3)
7672
7673 int lfs_setquota(int argc, char **argv)
7674 {
7675         int c, rc = 0;
7676         struct if_quotactl *qctl;
7677         char *mnt, *obd_type;
7678         struct obd_dqblk *dqb;
7679         struct option long_opts[] = {
7680         { .val = 'b',   .name = "block-softlimit",
7681                                                 .has_arg = required_argument },
7682         { .val = 'B',   .name = "block-hardlimit",
7683                                                 .has_arg = required_argument },
7684         { .val = 'd',   .name = "default",      .has_arg = no_argument },
7685         { .val = LFS_SETQUOTA_DELETE,
7686                         .name = "delete",       .has_arg = no_argument },
7687         { .val = 'g',   .name = "group",        .has_arg = required_argument },
7688         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
7689         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7690         { .val = 'i',   .name = "inode-softlimit",
7691                                                 .has_arg = required_argument },
7692         { .val = 'I',   .name = "inode-hardlimit",
7693                                                 .has_arg = required_argument },
7694         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
7695         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
7696         { .val = 'u',   .name = "user",         .has_arg = required_argument },
7697         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
7698         { .val = LFS_POOL_OPT,
7699                         .name = "pool",         .has_arg = required_argument },
7700         { .name = NULL } };
7701         unsigned int limit_mask = 0;
7702         bool use_default = false;
7703         int qtype, qctl_len;
7704
7705         qctl_len = sizeof(*qctl) + LOV_MAXPOOLNAME + 1;
7706         qctl = malloc(qctl_len);
7707         if (!qctl)
7708                 return -ENOMEM;
7709
7710         memset(qctl, 0, qctl_len);
7711         obd_type = (char *)qctl->obd_type;
7712         dqb = &qctl->qc_dqblk;
7713
7714         if (has_times_option(argc, argv)) {
7715                 rc = lfs_setquota_times(argc, argv, qctl);
7716                 goto out;
7717         }
7718
7719         qctl->qc_cmd  = LUSTRE_Q_SETQUOTA;
7720         qctl->qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
7721                                    * so it can be used as a marker that qc_type
7722                                    * isn't reinitialized from command line
7723                                    */
7724         while ((c = getopt_long(argc, argv, "b:B:dDg:Ghi:I:p:Pu:U",
7725                 long_opts, NULL)) != -1) {
7726                 switch (c) {
7727                 case 'U':
7728                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7729                         qtype = USRQUOTA;
7730                         qctl->qc_id = 0;
7731                         goto quota_type_def;
7732                 case 'u':
7733                         qtype = USRQUOTA;
7734                         rc = name2uid(&qctl->qc_id, optarg);
7735                         goto quota_type;
7736                 case 'G':
7737                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7738                         qtype = GRPQUOTA;
7739                         qctl->qc_id = 0;
7740                         goto quota_type_def;
7741                 case 'g':
7742                         qtype = GRPQUOTA;
7743                         rc = name2gid(&qctl->qc_id, optarg);
7744                         goto quota_type;
7745                 case 'P':
7746                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7747                         qtype = PRJQUOTA;
7748                         qctl->qc_id = 0;
7749                         goto quota_type_def;
7750                 case 'p':
7751                         qtype = PRJQUOTA;
7752                         rc = name2projid(&qctl->qc_id, optarg);
7753 quota_type:
7754                         if (rc) {
7755                                 if (str2quotaid(&qctl->qc_id, optarg)) {
7756                                         fprintf(stderr,
7757                                                 "%s setquota: invalid id '%s'\n",
7758                                                 progname, optarg);
7759                                         rc = -1;
7760                                         goto out;
7761                                 }
7762                         }
7763
7764                         if (qctl->qc_id == 0) {
7765                                 fprintf(stderr,
7766                                         "%s setquota: can't set quota for root usr/group/project.\n",
7767                                         progname);
7768                                 rc = -1;
7769                                 goto out;
7770                         }
7771
7772 quota_type_def:
7773                         if (qctl->qc_type != ALLQUOTA) {
7774                                 fprintf(stderr,
7775                                         "%s setquota: only one of -u, -U, -g, -G, -p or -P may be specified\n",
7776                                         progname);
7777                                 rc = CMD_HELP;
7778                                 goto out;
7779                         }
7780                         qctl->qc_type = qtype;
7781                         break;
7782 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7783                 case 'd':
7784 #if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 15, 53, 0)
7785                         fprintf(stderr, "'-d' deprecatd, use '-D' or '--default'\n");
7786 #endif
7787                         /* falltrrough */
7788 #endif
7789                 case 'D':
7790                         use_default = true;
7791                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7792                         break;
7793                 case LFS_SETQUOTA_DELETE:
7794                         qctl->qc_cmd = LUSTRE_Q_DELETEQID;
7795                         break;
7796                 case 'b':
7797                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
7798                         dqb->dqb_bsoftlimit >>= 10;
7799                         limit_mask |= BSLIMIT;
7800                         if (dqb->dqb_bsoftlimit &&
7801                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
7802                                 fprintf(stderr,
7803                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7804                                         progname,
7805                                         (unsigned long long)dqb->dqb_bsoftlimit,
7806                                         progname);
7807                         break;
7808                 case 'B':
7809                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
7810                         dqb->dqb_bhardlimit >>= 10;
7811                         limit_mask |= BHLIMIT;
7812                         if (dqb->dqb_bhardlimit &&
7813                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
7814                                 fprintf(stderr,
7815                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
7816                                         "See '%s help setquota' or Lustre manual for details\n",
7817                                         progname,
7818                                         (unsigned long long)dqb->dqb_bhardlimit,
7819                                         progname);
7820                         break;
7821                 case 'i':
7822                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
7823                         limit_mask |= ISLIMIT;
7824                         if (dqb->dqb_isoftlimit &&
7825                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
7826                                 fprintf(stderr,
7827                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7828                                         progname,
7829                                         (unsigned long long)dqb->dqb_isoftlimit,
7830                                         progname);
7831                         break;
7832                 case 'I':
7833                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
7834                         limit_mask |= IHLIMIT;
7835                         if (dqb->dqb_ihardlimit &&
7836                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
7837                                 fprintf(stderr,
7838                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7839                                         progname,
7840                                         (unsigned long long)dqb->dqb_ihardlimit,
7841                                         progname);
7842                         break;
7843                 case LFS_POOL_OPT:
7844                         if (lfs_verify_poolarg(optarg)) {
7845                                 rc = -1;
7846                                 goto out;
7847                         }
7848                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7849                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_SETDEFAULT ?
7850                                                 LUSTRE_Q_SETDEFAULT_POOL :
7851                                                 LUSTRE_Q_SETQUOTAPOOL;
7852                         break;
7853                 default:
7854                         fprintf(stderr,
7855                                 "%s setquota: unrecognized option '%s'\n",
7856                                 progname, argv[optind - 1]);
7857                         fallthrough;
7858                 case 'h':
7859                         rc = CMD_HELP;
7860                         goto out;
7861                 }
7862         }
7863
7864         if (qctl->qc_type == ALLQUOTA) {
7865                 fprintf(stderr,
7866                         "%s setquota: either -u or -g must be specified\n",
7867                         progname);
7868                 rc = CMD_HELP;
7869                 goto out;
7870         }
7871
7872         if (!use_default && qctl->qc_cmd != LUSTRE_Q_DELETEQID &&
7873             limit_mask == 0) {
7874                 fprintf(stderr,
7875                         "%s setquota: at least one limit must be specified\n",
7876                         progname);
7877                 rc = CMD_HELP;
7878                 goto out;
7879         }
7880
7881         if ((use_default || qctl->qc_cmd == LUSTRE_Q_DELETEQID)  &&
7882             limit_mask != 0) {
7883                 fprintf(stderr,
7884                         "%s setquota: limits should not be specified when using default quota or deleting quota ID\n",
7885                         progname);
7886                 rc = CMD_HELP;
7887                 goto out;
7888         }
7889
7890         if (use_default && qctl->qc_id == 0) {
7891                 fprintf(stderr,
7892                         "%s setquota: can not set default quota for root user/group/project\n",
7893                         progname);
7894                 rc = CMD_HELP;
7895                 goto out;
7896         }
7897
7898         if (qctl->qc_cmd == LUSTRE_Q_DELETEQID  && qctl->qc_id == 0) {
7899                 fprintf(stderr,
7900                         "%s setquota: can not delete root user/group/project\n",
7901                         progname);
7902                 rc = CMD_HELP;
7903                 goto out;
7904         }
7905
7906         if (optind != argc - 1) {
7907                 fprintf(stderr,
7908                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
7909                         progname, argv[optind]);
7910                 rc = CMD_HELP;
7911                 goto out;
7912         }
7913
7914         mnt = argv[optind];
7915
7916         if (use_default) {
7917                 dqb->dqb_bhardlimit = 0;
7918                 dqb->dqb_bsoftlimit = 0;
7919                 dqb->dqb_ihardlimit = 0;
7920                 dqb->dqb_isoftlimit = 0;
7921                 dqb->dqb_itime = 0;
7922                 dqb->dqb_btime = 0;
7923                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
7924                 /* do not set inode limits for Pool Quotas */
7925                 if (qctl->qc_cmd  == LUSTRE_Q_SETDEFAULT_POOL)
7926                         dqb->dqb_valid ^= QIF_ILIMITS | QIF_ITIME;
7927         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
7928                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
7929                 /* sigh, we can't just set blimits/ilimits */
7930                 struct if_quotactl *tmp_qctl;
7931
7932                 tmp_qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
7933                 if (!tmp_qctl)
7934                         goto out;
7935
7936                 if (qctl->qc_cmd == LUSTRE_Q_SETQUOTAPOOL) {
7937                         tmp_qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
7938                         strncpy(tmp_qctl->qc_poolname, qctl->qc_poolname,
7939                                 LOV_MAXPOOLNAME);
7940                 } else {
7941                         tmp_qctl->qc_cmd  = LUSTRE_Q_GETQUOTA;
7942                 }
7943                 tmp_qctl->qc_type = qctl->qc_type;
7944                 tmp_qctl->qc_id = qctl->qc_id;
7945
7946                 rc = llapi_quotactl(mnt, tmp_qctl);
7947                 if (rc < 0) {
7948                         free(tmp_qctl);
7949                         goto out;
7950                 }
7951
7952                 if (!(limit_mask & BHLIMIT))
7953                         dqb->dqb_bhardlimit = tmp_qctl->qc_dqblk.dqb_bhardlimit;
7954                 if (!(limit_mask & BSLIMIT))
7955                         dqb->dqb_bsoftlimit = tmp_qctl->qc_dqblk.dqb_bsoftlimit;
7956                 if (!(limit_mask & IHLIMIT))
7957                         dqb->dqb_ihardlimit = tmp_qctl->qc_dqblk.dqb_ihardlimit;
7958                 if (!(limit_mask & ISLIMIT))
7959                         dqb->dqb_isoftlimit = tmp_qctl->qc_dqblk.dqb_isoftlimit;
7960
7961                 /* Keep grace times if we have got no softlimit arguments */
7962                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
7963                         dqb->dqb_valid |= QIF_BTIME;
7964                         dqb->dqb_btime = tmp_qctl->qc_dqblk.dqb_btime;
7965                 }
7966
7967                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
7968                         dqb->dqb_valid |= QIF_ITIME;
7969                         dqb->dqb_itime = tmp_qctl->qc_dqblk.dqb_itime;
7970                 }
7971                 free(tmp_qctl);
7972         }
7973
7974         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
7975         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
7976
7977         rc = llapi_quotactl(mnt, qctl);
7978         if (rc) {
7979                 if (*obd_type)
7980                         fprintf(stderr,
7981                                 "%s setquota: cannot quotactl '%s' '%s': %s\n",
7982                                 progname, obd_type,
7983                                 obd_uuid2str(&qctl->obd_uuid), strerror(-rc));
7984                 else
7985                         fprintf(stderr,
7986                                 "%s setquota: quotactl failed: %s\n",
7987                                 progname, strerror(-rc));
7988         }
7989 out:
7990         if (rc)
7991                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
7992
7993         free(qctl);
7994         return rc;
7995 }
7996
7997 /* Converts seconds value into format string
7998  * result is returned in buf
7999  * Notes:
8000  *        1. result is in descenting order: 1w2d3h4m5s
8001  *        2. zero fields are not filled (except for p. 3): 5d1s
8002  *        3. zero seconds value is presented as "0s"
8003  */
8004 static char *__sec2str(time_t seconds, char *buf)
8005 {
8006         const char spec[] = "smhdw";
8007         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
8008         unsigned long c;
8009         char *tail = buf;
8010         int i;
8011
8012         for (i = ARRAY_SIZE(mult) - 1 ; i >= 0; i--) {
8013                 c = seconds / mult[i];
8014
8015                 if (c > 0 || (i == 0 && buf == tail))
8016                         tail += scnprintf(tail, 40-(tail-buf), "%lu%c", c,
8017                                           spec[i]);
8018
8019                 seconds %= mult[i];
8020         }
8021
8022         return tail;
8023 }
8024
8025 static void sec2str(time_t seconds, char *buf, int rc)
8026 {
8027         char *tail = buf;
8028
8029         if (rc)
8030                 *tail++ = '[';
8031
8032         tail = __sec2str(seconds, tail);
8033
8034         if (rc && tail - buf < 39) {
8035                 *tail++ = ']';
8036                 *tail++ = 0;
8037         }
8038 }
8039
8040 static void diff2str(time_t seconds, char *buf, time_t now)
8041 {
8042         buf[0] = 0;
8043         if (!seconds)
8044                 return;
8045         if (seconds <= now) {
8046                 strcpy(buf, "none");
8047                 return;
8048         }
8049         __sec2str(seconds - now, buf);
8050 }
8051
8052 static void print_quota_title(char *name, struct if_quotactl *qctl,
8053                               bool human_readable, bool show_default)
8054 {
8055         if (show_default) {
8056                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
8057                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
8058                        "Filesystem", "bquota", "blimit", "bgrace",
8059                        "iquota", "ilimit", "igrace");
8060         } else {
8061                 printf("Disk quotas for %s %s (%cid %u):\n",
8062                        qtype_name(qctl->qc_type), name,
8063                        *qtype_name(qctl->qc_type), qctl->qc_id);
8064                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
8065                        "Filesystem", human_readable ? "used" : "kbytes",
8066                        "quota", "limit", "grace",
8067                        "files", "quota", "limit", "grace");
8068         }
8069 }
8070
8071 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
8072 {
8073         if (!h) {
8074                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
8075         } else {
8076                 if (num >> 40)
8077                         snprintf(buf, buflen, "%5.4gP",
8078                                  (double)num / ((__u64)1 << 40));
8079                 else if (num >> 30)
8080                         snprintf(buf, buflen, "%5.4gT",
8081                                  (double)num / (1 << 30));
8082                 else if (num >> 20)
8083                         snprintf(buf, buflen, "%5.4gG",
8084                                  (double)num / (1 << 20));
8085                 else if (num >> 10)
8086                         snprintf(buf, buflen, "%5.4gM",
8087                                  (double)num / (1 << 10));
8088                 else
8089                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
8090         }
8091 }
8092
8093 #ifdef HAVE_NATIVE_CLIENT
8094 /* In the current Lustre implementation, the grace time is either the time
8095  * or the timestamp to be used after some quota ID exceeds the soft limt,
8096  * 48 bits should be enough, its high 16 bits can be used as quota flags.
8097  */
8098 #define LQUOTA_GRACE_BITS       48
8099 #define LQUOTA_GRACE_MASK       ((1ULL << LQUOTA_GRACE_BITS) - 1)
8100 #define LQUOTA_GRACE_MAX        LQUOTA_GRACE_MASK
8101 #define LQUOTA_GRACE(t)         (t & LQUOTA_GRACE_MASK)
8102 #define LQUOTA_FLAG(t)          (t >> LQUOTA_GRACE_BITS)
8103 #define LQUOTA_GRACE_FLAG(t, f) ((__u64)t | (__u64)f << LQUOTA_GRACE_BITS)
8104 #endif
8105
8106 #define STRBUF_LEN      24
8107 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
8108                         int rc, bool h, bool show_default)
8109 {
8110         time_t now;
8111
8112         time(&now);
8113
8114         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
8115             qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
8116             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT ||
8117             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT_POOL) {
8118                 int bover = 0, iover = 0;
8119                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
8120                 char numbuf[3][STRBUF_LEN + 2]; /* 2 for brackets or wildcard */
8121                 char timebuf[40];
8122                 char strbuf[STRBUF_LEN];
8123
8124                 if (dqb->dqb_bhardlimit &&
8125                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
8126                         bover = 1;
8127                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
8128                         if (dqb->dqb_btime > now)
8129                                 bover = 2;
8130                         else
8131                                 bover = 3;
8132                 }
8133
8134                 if (dqb->dqb_ihardlimit &&
8135                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
8136                         iover = 1;
8137                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
8138                         if (dqb->dqb_itime > now)
8139                                 iover = 2;
8140                         else
8141                                 iover = 3;
8142                 }
8143
8144                 if (strlen(mnt) > 15)
8145                         printf("%s\n%15s", mnt, "");
8146                 else
8147                         printf("%15s", mnt);
8148
8149                 if (bover)
8150                         diff2str(dqb->dqb_btime, timebuf, now);
8151                 else if (show_default)
8152                         snprintf(timebuf, sizeof(timebuf), "%llu",
8153                                  (unsigned long long)dqb->dqb_btime);
8154
8155                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
8156                            strbuf, sizeof(strbuf), h);
8157                 if (rc == -EREMOTEIO)
8158                         sprintf(numbuf[0], "%s*", strbuf);
8159                 else
8160                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
8161                                 "%s" : "[%s]", strbuf);
8162
8163                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
8164                 if (type == QC_GENERAL)
8165                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
8166                                 "%s" : "[%s]", strbuf);
8167                 else
8168                         sprintf(numbuf[1], "%s", "-");
8169
8170                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
8171                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
8172                         "%s" : "[%s]", strbuf);
8173
8174                 if (show_default)
8175                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
8176                 else
8177                         printf(" %7s%c %6s %7s %7s",
8178                                numbuf[0], bover ? '*' : ' ', numbuf[1],
8179                                numbuf[2], bover > 1 ? timebuf : "-");
8180
8181                 if (iover)
8182                         diff2str(dqb->dqb_itime, timebuf, now);
8183                 else if (show_default)
8184                         snprintf(timebuf, sizeof(timebuf), "%llu",
8185                                  (unsigned long long)dqb->dqb_itime);
8186
8187                 snprintf(numbuf[0], sizeof(numbuf),
8188                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
8189                          (uintmax_t)dqb->dqb_curinodes);
8190
8191                 if (type == QC_GENERAL)
8192                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
8193                                 "%ju" : "[%ju]",
8194                                 (uintmax_t)dqb->dqb_isoftlimit);
8195                 else
8196                         sprintf(numbuf[1], "%s", "-");
8197
8198                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
8199                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
8200
8201                 if (show_default)
8202                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
8203                 else if (type != QC_OSTIDX)
8204                         printf(" %7s%c %6s %7s %7s",
8205                                numbuf[0], iover ? '*' : ' ', numbuf[1],
8206                                numbuf[2], iover > 1 ? timebuf : "-");
8207                 else
8208                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
8209                 printf("\n");
8210         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO || LUSTRE_Q_GETINFOPOOL ||
8211                    qctl->qc_cmd == Q_GETOINFO) {
8212                 char bgtimebuf[40];
8213                 char igtimebuf[40];
8214
8215                 if (qctl->qc_dqinfo.dqi_bgrace == NOTIFY_GRACE_TIME)
8216                         strncpy(bgtimebuf, NOTIFY_GRACE, 40);
8217                 else
8218                         sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
8219                 if (qctl->qc_dqinfo.dqi_igrace == NOTIFY_GRACE_TIME)
8220                         strncpy(igtimebuf, NOTIFY_GRACE, 40);
8221                 else
8222                         sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
8223
8224                 printf("Block grace time: %s; Inode grace time: %s\n",
8225                        bgtimebuf, igtimebuf);
8226         }
8227 }
8228
8229 static int tgt_name2index(const char *tgtname, unsigned int *idx)
8230 {
8231         char *dash, *endp;
8232
8233         /* format is "lustre-OST0001" */
8234         dash = memchr(tgtname, '-', LUSTRE_MAXFSNAME + 1);
8235         if (!dash) {
8236                 fprintf(stderr, "wrong tgtname format '%s'\n", tgtname);
8237                 return -EINVAL;
8238         }
8239         dash += 4;
8240
8241         *idx = strtoul(dash, &endp, 16);
8242         if (*idx > 0xffff) {
8243                 fprintf(stderr, "wrong index %s\n", tgtname);
8244                 return -ERANGE;
8245         }
8246
8247         return 0;
8248 }
8249
8250 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
8251                            bool h, __u64 *total)
8252 {
8253         int rc = 0, rc1 = 0, count = 0, i = 0;
8254         char **list = NULL, *buffer = NULL;
8255         __u32 valid = qctl->qc_valid;
8256
8257         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL && is_mdt)
8258                 return 0;
8259
8260         /* Is it correct for the case OST0000, OST0002, OST0003 -
8261          * we will ask OST0001 that is absent and won't ask OST0003? */
8262         rc = llapi_get_obd_count(mnt, &count, is_mdt);
8263         if (rc) {
8264                 fprintf(stderr, "can not get %s count: %s\n",
8265                         is_mdt ? "mdt" : "ost", strerror(-rc));
8266                 return rc;
8267         }
8268
8269         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8270                 char fname[PATH_MAX];
8271                 char fsname[LUSTRE_MAXFSNAME + 1];
8272                 int bufsize = sizeof(struct obd_uuid) * count;
8273
8274                 rc = llapi_search_fsname(mnt, fsname);
8275                 if (rc) {
8276                         fprintf(stderr, "cannot get fsname for mountpoint %s\n",
8277                                 mnt);
8278                         goto out;
8279                 }
8280                 buffer = malloc(bufsize + sizeof(*list) * count);
8281                 if (!buffer)
8282                         return -ENOMEM;
8283                 list = (char **)(buffer + bufsize);
8284                 snprintf(fname, PATH_MAX, "%s.%s", fsname, qctl->qc_poolname);
8285                 count = llapi_get_poolmembers(fname, list, count,
8286                                               buffer, bufsize);
8287                 if (count <= 0)
8288                         goto out;
8289         }
8290
8291         for (i = 0; i < count; i++) {
8292                 if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8293                         unsigned int index;
8294
8295                         if (tgt_name2index(list[i], &index))
8296                                 continue;
8297                         qctl->qc_idx = index;
8298                 } else {
8299                         qctl->qc_idx = i;
8300                 }
8301
8302                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
8303                 rc = llapi_quotactl(mnt, qctl);
8304                 if (rc) {
8305                         /* It is remote client case. */
8306                         if (rc == -EOPNOTSUPP) {
8307                                 rc = 0;
8308                                 goto out;
8309                         }
8310
8311                         if (!rc1)
8312                                 rc1 = rc;
8313                         fprintf(stderr, "quotactl %s%d failed.\n",
8314                                 is_mdt ? "mdt" : "ost", qctl->qc_idx);
8315                         continue;
8316                 }
8317
8318                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
8319                             qctl->qc_valid, 0, h, false);
8320                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
8321                                    qctl->qc_dqblk.dqb_bhardlimit;
8322         }
8323 out:
8324         if (buffer)
8325                 free(buffer);
8326         qctl->qc_valid = valid;
8327         return rc ? : rc1;
8328 }
8329
8330 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
8331                            int verbose, int quiet, bool human_readable,
8332                            bool show_default)
8333 {
8334         int rc1 = 0, rc2 = 0, rc3 = 0;
8335         char *obd_type = (char *)qctl->obd_type;
8336         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
8337         __u64 total_ialloc = 0, total_balloc = 0;
8338         bool use_default_for_blk = false;
8339         bool use_default_for_file = false;
8340         int inacc;
8341
8342         rc1 = llapi_quotactl(mnt, qctl);
8343         if (rc1 < 0) {
8344                 switch (rc1) {
8345                 case -ESRCH:
8346                         fprintf(stderr, "%s quotas are not enabled.\n",
8347                                 qtype_name(qctl->qc_type));
8348                         goto out;
8349                 case -EPERM:
8350                         fprintf(stderr, "Permission denied.\n");
8351                 case -ENODEV:
8352                 case -ENOENT:
8353                         /* We already got error message. */
8354                         goto out;
8355                 default:
8356                         fprintf(stderr, "Unexpected quotactl error: %s\n",
8357                                 strerror(-rc1));
8358                 }
8359         }
8360
8361         if (!show_default && qctl->qc_id == 0) {
8362                 qctl->qc_dqblk.dqb_bhardlimit = 0;
8363                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
8364                 qctl->qc_dqblk.dqb_ihardlimit = 0;
8365                 qctl->qc_dqblk.dqb_isoftlimit = 0;
8366                 qctl->qc_dqblk.dqb_btime = 0;
8367                 qctl->qc_dqblk.dqb_itime = 0;
8368                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
8369         }
8370
8371         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
8372             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
8373                 use_default_for_blk = true;
8374                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
8375         }
8376
8377         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
8378             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
8379                 use_default_for_file = true;
8380                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
8381         }
8382
8383         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8384              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
8385              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT_POOL ||
8386              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
8387                 print_quota_title(name, qctl, human_readable, show_default);
8388
8389         if (rc1 && *obd_type)
8390                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
8391
8392         if (qctl->qc_valid != QC_GENERAL)
8393                 mnt = "";
8394
8395         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8396                  qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8397                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
8398                  (QIF_LIMITS|QIF_USAGE));
8399
8400         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
8401
8402         if (!show_default && verbose &&
8403             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
8404             qctl->qc_cmd != LUSTRE_Q_GETINFOPOOL) {
8405                 char strbuf[STRBUF_LEN];
8406
8407                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
8408                                       &total_ialloc);
8409                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
8410                                       &total_balloc);
8411                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
8412                            human_readable);
8413                 printf("Total allocated inode limit: %ju, total allocated block limit: %s\n",
8414                        (uintmax_t)total_ialloc, strbuf);
8415         }
8416
8417         if (use_default_for_blk)
8418                 printf("%cid %u is using default block quota setting\n",
8419                        *qtype_name(qctl->qc_type), qctl->qc_id);
8420
8421         if (use_default_for_file)
8422                 printf("%cid %u is using default file quota setting\n",
8423                        *qtype_name(qctl->qc_type), qctl->qc_id);
8424
8425         if (rc1 || rc2 || rc3 || inacc)
8426                 printf("Some errors happened when getting quota info. Some devices may be not working or deactivated. The data in \"[]\" is inaccurate.\n");
8427 out:
8428         if (rc1)
8429                 return rc1;
8430         if (rc2)
8431                 return rc2;
8432         if (rc3)
8433                 return rc3;
8434         if (inacc)
8435                 return -EIO;
8436
8437         return 0;
8438 }
8439
8440 static int lfs_project(int argc, char **argv)
8441 {
8442         int ret = 0, err = 0, c, i;
8443         struct project_handle_control phc = { 0 };
8444         enum lfs_project_ops_t op;
8445
8446         phc.newline = true;
8447         phc.assign_projid = false;
8448         /* default action */
8449         op = LFS_PROJECT_LIST;
8450
8451         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
8452                 switch (c) {
8453                 case 'c':
8454                         if (op != LFS_PROJECT_LIST) {
8455                                 fprintf(stderr,
8456                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8457                                         progname);
8458                                 return CMD_HELP;
8459                         }
8460
8461                         op = LFS_PROJECT_CHECK;
8462                         break;
8463                 case 'C':
8464                         if (op != LFS_PROJECT_LIST) {
8465                                 fprintf(stderr,
8466                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8467                                         progname);
8468                                 return CMD_HELP;
8469                         }
8470
8471                         op = LFS_PROJECT_CLEAR;
8472                         break;
8473                 case 's':
8474                         if (op != LFS_PROJECT_LIST) {
8475                                 fprintf(stderr,
8476                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8477                                         progname);
8478                                 return CMD_HELP;
8479                         }
8480
8481                         phc.set_inherit = true;
8482                         op = LFS_PROJECT_SET;
8483                         break;
8484                 case 'd':
8485                         phc.dironly = true;
8486                         break;
8487                 case 'k':
8488                         phc.keep_projid = true;
8489                         break;
8490                 case 'r':
8491                         phc.recursive = true;
8492                         break;
8493                 case 'p':
8494                         if (str2quotaid(&phc.projid, optarg)) {
8495                                 fprintf(stderr,
8496                                         "Invalid project ID: %s\n",
8497                                         optarg);
8498                                 return CMD_HELP;
8499                         }
8500
8501                         phc.assign_projid = true;
8502
8503                         break;
8504                 case '0':
8505                         phc.newline = false;
8506                         break;
8507                 default:
8508                         fprintf(stderr, "%s: invalid option '%c'\n",
8509                                 progname, optopt);
8510                         return CMD_HELP;
8511                 }
8512         }
8513
8514         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
8515                 op = LFS_PROJECT_SET;
8516                 phc.set_projid = true;
8517         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
8518                 phc.set_projid = true;
8519         }
8520
8521         switch (op) {
8522         case LFS_PROJECT_CHECK:
8523                 if (phc.keep_projid) {
8524                         fprintf(stderr,
8525                                 "%s: '-k' is useless together with '-c'\n",
8526                                 progname);
8527                         return CMD_HELP;
8528                 }
8529                 break;
8530         case LFS_PROJECT_CLEAR:
8531                 if (!phc.newline) {
8532                         fprintf(stderr,
8533                                 "%s: '-0' is useless together with '-C'\n",
8534                                 progname);
8535                         return CMD_HELP;
8536                 }
8537                 if (phc.assign_projid) {
8538                         fprintf(stderr,
8539                                 "%s: '-p' is useless together with '-C'\n",
8540                                 progname);
8541                         return CMD_HELP;
8542                 }
8543                 break;
8544         case LFS_PROJECT_SET:
8545                 if (!phc.newline) {
8546                         fprintf(stderr,
8547                                 "%s: '-0' is useless together with '-s'\n",
8548                                 progname);
8549                         return CMD_HELP;
8550                 }
8551                 if (phc.keep_projid) {
8552                         fprintf(stderr,
8553                                 "%s: '-k' is useless together with '-s'\n",
8554                                 progname);
8555                         return CMD_HELP;
8556                 }
8557                 break;
8558         default:
8559                 if (!phc.newline) {
8560                         fprintf(stderr,
8561                                 "%s: '-0' is useless for list operations\n",
8562                                 progname);
8563                         return CMD_HELP;
8564                 }
8565                 break;
8566         }
8567
8568         argv += optind;
8569         argc -= optind;
8570         if (argc == 0) {
8571                 fprintf(stderr, "%s: missing file or directory target(s)\n",
8572                         progname);
8573                 return CMD_HELP;
8574         }
8575
8576         for (i = 0; i < argc; i++) {
8577                 switch (op) {
8578                 case LFS_PROJECT_CHECK:
8579                         err = lfs_project_check(argv[i], &phc);
8580                         break;
8581                 case LFS_PROJECT_LIST:
8582                         err = lfs_project_list(argv[i], &phc);
8583                         break;
8584                 case LFS_PROJECT_CLEAR:
8585                         err = lfs_project_clear(argv[i], &phc);
8586                         break;
8587                 case LFS_PROJECT_SET:
8588                         err = lfs_project_set(argv[i], &phc);
8589                         break;
8590                 default:
8591                         break;
8592                 }
8593                 if (err && !ret)
8594                         ret = err;
8595         }
8596
8597         return ret;
8598 }
8599
8600 static int lfs_quota(int argc, char **argv)
8601 {
8602         int c;
8603         char *mnt, *name = NULL;
8604         struct if_quotactl *qctl;
8605         char *obd_uuid;
8606         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
8607         __u32 valid = QC_GENERAL, idx = 0;
8608         bool human_readable = false;
8609         bool show_default = false;
8610         int qtype;
8611         bool show_pools = false;
8612         struct option long_opts[] = {
8613         { .val = LFS_POOL_OPT, .name = "pool", .has_arg = optional_argument },
8614         { .name = NULL } };
8615         char **poollist = NULL;
8616         char *buf = NULL;
8617         int poolcount, i;
8618
8619         qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
8620         if (!qctl)
8621                 return -ENOMEM;
8622
8623         qctl->qc_cmd = LUSTRE_Q_GETQUOTA;
8624         qctl->qc_type = ALLQUOTA;
8625         obd_uuid = (char *)qctl->obd_uuid.uuid;
8626
8627         while ((c = getopt_long(argc, argv, "gGi:I:o:pPqtuUvh",
8628                 long_opts, NULL)) != -1) {
8629                 switch (c) {
8630                 case 'U':
8631                         show_default = true;
8632                 case 'u':
8633                         qtype = USRQUOTA;
8634                         goto quota_type;
8635                 case 'G':
8636                         show_default = true;
8637                 case 'g':
8638                         qtype = GRPQUOTA;
8639                         goto quota_type;
8640                 case 'P':
8641                         show_default = true;
8642                 case 'p':
8643                         qtype = PRJQUOTA;
8644 quota_type:
8645                         if (qctl->qc_type != ALLQUOTA) {
8646                                 fprintf(stderr,
8647                                         "%s quota: only one of -u, -g, or -p may be specified\n",
8648                                         progname);
8649                                 rc = CMD_HELP;
8650                                 goto out;
8651                         }
8652                         qctl->qc_type = qtype;
8653                         break;
8654                 case 't':
8655                         qctl->qc_cmd = LUSTRE_Q_GETINFO;
8656                         break;
8657                 case 'o':
8658                         valid = qctl->qc_valid = QC_UUID;
8659                         snprintf(obd_uuid, sizeof(*obd_uuid), "%s", optarg);
8660                         break;
8661                 case 'i':
8662                         valid = qctl->qc_valid = QC_MDTIDX;
8663                         idx = qctl->qc_idx = atoi(optarg);
8664                         if (idx == 0 && *optarg != '0') {
8665                                 fprintf(stderr,
8666                                         "%s quota: invalid MDT index '%s'\n",
8667                                         progname, optarg);
8668                                 rc = CMD_HELP;
8669                                 goto out;
8670                         }
8671                         break;
8672                 case 'I':
8673                         valid = qctl->qc_valid = QC_OSTIDX;
8674                         idx = qctl->qc_idx = atoi(optarg);
8675                         if (idx == 0 && *optarg != '0') {
8676                                 fprintf(stderr,
8677                                         "%s quota: invalid OST index '%s'\n",
8678                                         progname, optarg);
8679                                 rc = CMD_HELP;
8680                                 goto out;
8681                         }
8682                         break;
8683                 case 'v':
8684                         verbose = 1;
8685                         break;
8686                 case 'q':
8687                         quiet = 1;
8688                         break;
8689                 case 'h':
8690                         human_readable = true;
8691                         break;
8692                 case LFS_POOL_OPT:
8693                         if ((!optarg) && (argv[optind] != NULL) &&
8694                                 (argv[optind][0] != '-') &&
8695                                 (argv[optind][0] != '/')) {
8696                                 optarg = argv[optind++];
8697                                 if (lfs_verify_poolarg(optarg)) {
8698                                         rc = -EINVAL;
8699                                         goto out;
8700                                 }
8701                                 strncpy(qctl->qc_poolname, optarg,
8702                                         LOV_MAXPOOLNAME);
8703                                 if (qctl->qc_cmd == LUSTRE_Q_GETINFO)
8704                                         qctl->qc_cmd = LUSTRE_Q_GETINFOPOOL;
8705                                 else
8706                                         qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
8707                                 break;
8708                         }
8709
8710                         /* optarg is NULL */
8711                         show_pools = true;
8712                         qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
8713                         break;
8714                 default:
8715                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
8716                                 progname, argv[optind - 1]);
8717                         rc = CMD_HELP;
8718                         goto out;
8719                 }
8720         }
8721
8722         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
8723         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8724              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8725              qctl->qc_type == ALLQUOTA &&
8726              optind == argc - 1 && !show_default) {
8727                 qctl->qc_idx = idx;
8728
8729                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
8730                         qctl->qc_type = qtype;
8731                         qctl->qc_valid = valid;
8732                         if (qtype == USRQUOTA) {
8733                                 qctl->qc_id = geteuid();
8734                                 rc = uid2name(&name, qctl->qc_id);
8735                         } else {
8736                                 qctl->qc_id = getegid();
8737                                 rc = gid2name(&name, qctl->qc_id);
8738                                 memset(&qctl->qc_dqblk, 0,
8739                                        sizeof(qctl->qc_dqblk));
8740                         }
8741                         if (rc)
8742                                 name = "<unknown>";
8743                         mnt = argv[optind];
8744                         rc1 = get_print_quota(mnt, name, qctl, verbose, quiet,
8745                                               human_readable, show_default);
8746                         if (rc1 && !rc)
8747                                 rc = rc1;
8748                 }
8749                 goto out;
8750         /* lfs quota -u username /path/to/lustre/mount */
8751         } else if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8752                    qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8753                 /* options should be followed by u/g-name and mntpoint */
8754                 if ((!show_default && optind + 2 != argc) ||
8755                     (show_default && optind + 1 != argc) ||
8756                     qctl->qc_type == ALLQUOTA) {
8757                         fprintf(stderr,
8758                                 "%s quota: name and mount point must be specified\n",
8759                                 progname);
8760                         rc = CMD_HELP;
8761                         goto out;
8762                 }
8763
8764                 if (!show_default) {
8765                         name = argv[optind++];
8766                         switch (qctl->qc_type) {
8767                         case USRQUOTA:
8768                                 rc = name2uid(&qctl->qc_id, name);
8769                                 break;
8770                         case GRPQUOTA:
8771                                 rc = name2gid(&qctl->qc_id, name);
8772                                 break;
8773                         case PRJQUOTA:
8774                                 rc = name2projid(&qctl->qc_id, name);
8775                                 break;
8776                         default:
8777                                 rc = -ENOTSUP;
8778                                 break;
8779                         }
8780                 } else {
8781                         qctl->qc_valid = QC_GENERAL;
8782                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ?
8783                                         LUSTRE_Q_GETDEFAULT_POOL :
8784                                         LUSTRE_Q_GETDEFAULT;
8785                         qctl->qc_id = 0;
8786                 }
8787
8788                 if (rc) {
8789                         if (str2quotaid(&qctl->qc_id, name)) {
8790                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
8791                                         progname, name);
8792                                 rc = CMD_HELP;
8793                                 goto out;
8794                         }
8795                 }
8796         } else if (optind + 1 != argc || qctl->qc_type == ALLQUOTA) {
8797                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
8798                         progname);
8799                 rc = CMD_HELP;
8800                 goto out;
8801         }
8802
8803         mnt = argv[optind];
8804         if (show_pools) {
8805                 char *p;
8806
8807                 i = 0;
8808                 rc = llapi_get_poolbuf(mnt, &buf, &poollist, &poolcount);
8809                 if (rc)
8810                         goto out;
8811
8812                 for (i = 0; i < poolcount; i++) {
8813                         p = memchr(poollist[i], '.', MAXNAMLEN);
8814                         if (!p) {
8815                                 fprintf(stderr, "bad string format %.*s\n",
8816                                         MAXNAMLEN, poollist[i]);
8817                                 rc = -EINVAL;
8818                                 goto out;
8819                         }
8820                         p++;
8821                         printf("Quotas for pool: %s\n", p);
8822                         strncpy(qctl->qc_poolname, p, LOV_MAXPOOLNAME);
8823                         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8824                                              human_readable, show_default);
8825                         if (rc)
8826                                 break;
8827                 }
8828                 goto out;
8829         }
8830
8831         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8832                              human_readable, show_default);
8833 out:
8834         free(buf);
8835         free(qctl);
8836         return rc;
8837 }
8838 #endif /* HAVE_SYS_QUOTA_H! */
8839
8840 static int flushctx_ioctl(char *mp)
8841 {
8842         int fd, rc;
8843
8844         fd = open(mp, O_RDONLY);
8845         if (fd == -1) {
8846                 fprintf(stderr, "flushctx: error open %s: %s\n",
8847                         mp, strerror(errno));
8848                 return -1;
8849         }
8850
8851         rc = ioctl(fd, LL_IOC_FLUSHCTX);
8852         if (rc == -1)
8853                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
8854                         mp, strerror(errno));
8855
8856         close(fd);
8857         return rc;
8858 }
8859
8860 static int lfs_flushctx(int argc, char **argv)
8861 {
8862         int     kdestroy = 0, reap = 0, c;
8863         char    mntdir[PATH_MAX] = {'\0'};
8864         int     index = 0;
8865         int     rc = 0;
8866
8867         while ((c = getopt(argc, argv, "kr")) != -1) {
8868                 switch (c) {
8869                 case 'k':
8870                         kdestroy = 1;
8871                         break;
8872                 case 'r':
8873                         reap = 1;
8874                         break;
8875                 default:
8876                         fprintf(stderr,
8877                                 "error: %s: option '-%c' unrecognized\n",
8878                                 argv[0], c);
8879                         return CMD_HELP;
8880                 }
8881         }
8882
8883         if (kdestroy) {
8884                 rc = system("kdestroy > /dev/null");
8885                 if (rc) {
8886                         rc = WEXITSTATUS(rc);
8887                         fprintf(stderr,
8888                                 "error destroying tickets: %d, continuing\n",
8889                                 rc);
8890                 }
8891         }
8892
8893         if (optind >= argc) {
8894                 /* flush for all mounted lustre fs. */
8895                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
8896                         /* Check if we have a mount point */
8897                         if (mntdir[0] == '\0')
8898                                 continue;
8899
8900                         if (flushctx_ioctl(mntdir))
8901                                 rc = -1;
8902
8903                         mntdir[0] = '\0'; /* avoid matching in next loop */
8904                 }
8905         } else {
8906                 /* flush fs as specified */
8907                 while (optind < argc) {
8908                         if (flushctx_ioctl(argv[optind++]))
8909                                 rc = -1;
8910                 }
8911         }
8912
8913         if (reap) {
8914                 rc = system("keyctl reap > /dev/null");
8915                 if (rc != 0) {
8916                         rc = WEXITSTATUS(rc);
8917                         fprintf(stderr, "error reaping keyring: %d\n", rc);
8918                 }
8919         }
8920
8921         return rc;
8922 }
8923
8924 static int lfs_changelog(int argc, char **argv)
8925 {
8926         void *changelog_priv;
8927         struct changelog_rec *rec;
8928         long long startrec = 0, endrec = 0;
8929         char *mdd;
8930         struct option long_opts[] = {
8931                 { .val = 'f', .name = "follow", .has_arg = no_argument },
8932                 { .name = NULL } };
8933         char short_opts[] = "f";
8934         int rc, follow = 0;
8935
8936         while ((rc = getopt_long(argc, argv, short_opts,
8937                 long_opts, NULL)) != -1) {
8938                 switch (rc) {
8939                 case 'f':
8940                         follow++;
8941                         break;
8942                 default:
8943                         fprintf(stderr,
8944                                 "%s changelog: unrecognized option '%s'\n",
8945                                 progname, argv[optind - 1]);
8946                         return CMD_HELP;
8947                 }
8948         }
8949         if (optind >= argc) {
8950                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
8951                         progname);
8952                 return CMD_HELP;
8953         }
8954
8955         mdd = argv[optind++];
8956         if (argc > optind) {
8957                 errno = 0;
8958                 startrec = strtoll(argv[optind++], NULL, 10);
8959                 if (errno != 0 || startrec < 0) {
8960                         fprintf(stderr,
8961                                 "%s changelog: bad startrec\n",
8962                                 progname);
8963                         return CMD_HELP;
8964                 }
8965         }
8966
8967         if (argc > optind) {
8968                 errno = 0;
8969                 endrec = strtoll(argv[optind++], NULL, 10);
8970                 if (errno != 0 || endrec < 0) {
8971                         fprintf(stderr,
8972                                 "%s changelog: bad endrec\n",
8973                                 progname);
8974                         return CMD_HELP;
8975                 }
8976         }
8977
8978         rc = llapi_changelog_start(&changelog_priv,
8979                                    CHANGELOG_FLAG_BLOCK |
8980                                    CHANGELOG_FLAG_JOBID |
8981                                    CHANGELOG_FLAG_EXTRA_FLAGS |
8982                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
8983                                    mdd, startrec);
8984         if (rc < 0) {
8985                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
8986                         progname, strerror(errno = -rc));
8987                 return rc;
8988         }
8989
8990         rc = llapi_changelog_set_xflags(changelog_priv,
8991                                         CHANGELOG_EXTRA_FLAG_UIDGID |
8992                                         CHANGELOG_EXTRA_FLAG_NID |
8993                                         CHANGELOG_EXTRA_FLAG_OMODE |
8994                                         CHANGELOG_EXTRA_FLAG_XATTR);
8995         if (rc < 0) {
8996                 fprintf(stderr,
8997                         "%s changelog: cannot set xflags for changelog: %s\n",
8998                         progname, strerror(errno = -rc));
8999                 return rc;
9000         }
9001
9002         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
9003                 time_t secs;
9004                 struct tm ts;
9005
9006                 if (endrec && rec->cr_index > endrec) {
9007                         llapi_changelog_free(&rec);
9008                         break;
9009                 }
9010                 if (rec->cr_index < startrec) {
9011                         llapi_changelog_free(&rec);
9012                         continue;
9013                 }
9014
9015                 secs = rec->cr_time >> 30;
9016                 gmtime_r(&secs, &ts);
9017                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
9018                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
9019                        changelog_type2str(rec->cr_type),
9020                        ts.tm_hour, ts.tm_min, ts.tm_sec,
9021                        (int)(rec->cr_time & ((1 << 30) - 1)),
9022                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
9023                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
9024
9025                 if (rec->cr_flags & CLF_JOBID) {
9026                         struct changelog_ext_jobid *jid =
9027                                 changelog_rec_jobid(rec);
9028
9029                         if (jid->cr_jobid[0] != '\0')
9030                                 printf(" j=%s", jid->cr_jobid);
9031                 }
9032
9033                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
9034                         struct changelog_ext_extra_flags *ef =
9035                                 changelog_rec_extra_flags(rec);
9036
9037                         printf(" ef=0x%llx",
9038                                (unsigned long long)ef->cr_extra_flags);
9039
9040                         if (ef->cr_extra_flags & CLFE_UIDGID) {
9041                                 struct changelog_ext_uidgid *uidgid =
9042                                         changelog_rec_uidgid(rec);
9043
9044                                 printf(" u=%llu:%llu",
9045                                        (unsigned long long)uidgid->cr_uid,
9046                                        (unsigned long long)uidgid->cr_gid);
9047                         }
9048                         if (ef->cr_extra_flags & CLFE_NID) {
9049                                 struct changelog_ext_nid *nid =
9050                                         changelog_rec_nid(rec);
9051
9052                                 printf(" nid=%s",
9053                                        libcfs_nid2str(nid->cr_nid));
9054                         }
9055
9056                         if (ef->cr_extra_flags & CLFE_OPEN) {
9057                                 struct changelog_ext_openmode *omd =
9058                                         changelog_rec_openmode(rec);
9059                                 char mode[] = "---";
9060
9061                                 /* exec mode must be exclusive */
9062                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
9063                                         mode[2] = 'x';
9064                                 } else {
9065                                         if (omd->cr_openflags & MDS_FMODE_READ)
9066                                                 mode[0] = 'r';
9067                                         if (omd->cr_openflags &
9068                                             (MDS_FMODE_WRITE |
9069                                              MDS_OPEN_TRUNC |
9070                                              MDS_OPEN_APPEND))
9071                                                 mode[1] = 'w';
9072                                 }
9073
9074                                 if (strcmp(mode, "---") != 0)
9075                                         printf(" m=%s", mode);
9076                         }
9077
9078                         if (ef->cr_extra_flags & CLFE_XATTR) {
9079                                 struct changelog_ext_xattr *xattr =
9080                                         changelog_rec_xattr(rec);
9081
9082                                 if (xattr->cr_xattr[0] != '\0')
9083                                         printf(" x=%s", xattr->cr_xattr);
9084                         }
9085                 }
9086
9087                 if (!fid_is_zero(&rec->cr_pfid))
9088                         printf(" p="DFID, PFID(&rec->cr_pfid));
9089                 if (rec->cr_namelen)
9090                         printf(" %.*s", rec->cr_namelen,
9091                                changelog_rec_name(rec));
9092
9093                 if (rec->cr_flags & CLF_RENAME) {
9094                         struct changelog_ext_rename *rnm =
9095                                 changelog_rec_rename(rec);
9096
9097                         if (!fid_is_zero(&rnm->cr_sfid))
9098                                 printf(" s="DFID" sp="DFID" %.*s",
9099                                        PFID(&rnm->cr_sfid),
9100                                        PFID(&rnm->cr_spfid),
9101                                        (int)changelog_rec_snamelen(rec),
9102                                        changelog_rec_sname(rec));
9103                 }
9104                 printf("\n");
9105
9106                 llapi_changelog_free(&rec);
9107         }
9108
9109         llapi_changelog_fini(&changelog_priv);
9110
9111         if (rc < 0)
9112                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
9113                         progname, strerror(errno = -rc));
9114
9115         return (rc == 1 ? 0 : rc);
9116 }
9117
9118 static int lfs_changelog_clear(int argc, char **argv)
9119 {
9120         long long endrec;
9121         int rc;
9122
9123         if (argc != 4)
9124                 return CMD_HELP;
9125
9126         errno = 0;
9127         endrec = strtoll(argv[3], NULL, 10);
9128         if (errno != 0 || endrec < 0) {
9129                 fprintf(stderr,
9130                         "%s: bad endrec '%s'\n",
9131                         argv[0], argv[3]);
9132                 return CMD_HELP;
9133         }
9134
9135         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
9136
9137         if (rc == -EINVAL)
9138                 fprintf(stderr, "%s: record out of range: %llu\n",
9139                         argv[0], endrec);
9140         else if (rc == -ENOENT)
9141                 fprintf(stderr, "%s: no changelog user: %s\n",
9142                         argv[0], argv[2]);
9143         else if (rc)
9144                 fprintf(stderr, "%s error: %s\n", argv[0],
9145                         strerror(-rc));
9146
9147         if (rc)
9148                 errno = -rc;
9149
9150         return rc;
9151 }
9152
9153 static void rstripc(char *str, int c)
9154 {
9155         char *end = str + strlen(str);
9156
9157         for (; str < end && end[-1] == c; --end)
9158                 end[-1] = '\0';
9159 }
9160
9161 static int lfs_fid2path(int argc, char **argv)
9162 {
9163         struct option long_opts[] = {
9164                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
9165                 { .val = 'c',   .name = "current",      .has_arg = no_argument },
9166                 { .val = 'c',   .name = "print-link",   .has_arg = no_argument },
9167                 { .val = 'f',   .name = "print-fid",    .has_arg = no_argument },
9168                 { .val = 'l',   .name = "link", .has_arg = required_argument },
9169                 { .name = NULL } };
9170         char short_opts[] = "cfl:pr:";
9171         bool print_link = false;
9172         bool print_fid = false;
9173         bool print_mnt_dir;
9174         char mnt_dir[PATH_MAX] = "";
9175         int mnt_fd = -1;
9176         char *path_or_fsname;
9177         long long recno = -1;
9178         int linkno = -1;
9179         char *endptr = NULL;
9180         int rc = 0;
9181         int c;
9182         int i;
9183
9184         while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
9185                 switch (c) {
9186                 case 'c':
9187                         print_link = true;
9188                         break;
9189                 case 'f':
9190                         print_fid = true;
9191                         break;
9192                 case 'l':
9193                         errno = 0;
9194                         linkno = strtol(optarg, &endptr, 10);
9195                         if (errno != 0 || *endptr != '\0' || linkno < 0) {
9196                                 fprintf(stderr,
9197                                         "%s fid2path: invalid linkno '%s'\n",
9198                                         progname, optarg);
9199                                 return CMD_HELP;
9200                         }
9201                         break;
9202                 case 'r':
9203                         /* recno is something to do with changelogs
9204                          * that was never implemented. We just pass it
9205                          * through for the MDT to ignore.
9206                          */
9207                         errno = 0;
9208                         recno = strtoll(optarg, &endptr, 10);
9209                         if (errno != 0 || *endptr != '\0' || recno < 0) {
9210                                 fprintf(stderr,
9211                                         "%s fid2path: invalid recno '%s'\n",
9212                                         progname, optarg);
9213                                 return CMD_HELP;
9214                         }
9215                         break;
9216                 default:
9217                         fprintf(stderr,
9218                                 "%s fid2path: unrecognized option '%s'\n",
9219                                 progname, argv[optind - 1]);
9220                         return CMD_HELP;
9221                 }
9222         }
9223
9224         if (argc - optind < 2) {
9225                 fprintf(stderr,
9226                         "Usage: %s fid2path FSNAME|ROOT FID...\n",
9227                         progname);
9228                 return CMD_HELP;
9229         }
9230
9231         path_or_fsname = argv[optind];
9232
9233         if (*path_or_fsname == '/') {
9234                 print_mnt_dir = true;
9235                 rc = llapi_search_mounts(path_or_fsname, 0, mnt_dir, NULL);
9236         } else {
9237                 print_mnt_dir = false;
9238                 rc = llapi_search_rootpath(mnt_dir, path_or_fsname);
9239         }
9240
9241         if (rc < 0) {
9242                 fprintf(stderr,
9243                         "%s fid2path: cannot resolve mount point for '%s': %s\n",
9244                         progname, path_or_fsname, strerror(-rc));
9245                 goto out;
9246         }
9247
9248         mnt_fd = open(mnt_dir, O_RDONLY | O_DIRECTORY);
9249         if (mnt_fd < 0) {
9250                 fprintf(stderr,
9251                         "%s fid2path: cannot open mount point for '%s': %s\n",
9252                         progname, path_or_fsname, strerror(-rc));
9253                 goto out;
9254         }
9255
9256         /* Strip trailing slashes from mnt_dir. */
9257         rstripc(mnt_dir + 1, '/');
9258
9259         for (i = optind + 1; i < argc; i++) {
9260                 const char *fid_str = argv[i];
9261                 struct lu_fid fid;
9262                 int rc2;
9263
9264                 rc2 = llapi_fid_parse(fid_str, &fid, NULL);
9265                 if (rc2 < 0) {
9266                         fprintf(stderr,
9267                                 "%s fid2path: invalid FID '%s'\n",
9268                                 progname, fid_str);
9269                         if (rc == 0)
9270                                 rc = rc2;
9271
9272                         continue;
9273                 }
9274
9275                 int linktmp = (linkno >= 0) ? linkno : 0;
9276                 while (1) {
9277                         int oldtmp = linktmp;
9278                         long long rectmp = recno;
9279                         char path_buf[PATH_MAX];
9280
9281                         rc2 = llapi_fid2path_at(mnt_fd, &fid,
9282                                 path_buf, sizeof(path_buf), &rectmp, &linktmp);
9283                         if (rc2 < 0) {
9284                                 fprintf(stderr,
9285                                         "%s fid2path: cannot find %s %s: %s\n",
9286                                         progname, path_or_fsname, fid_str,
9287                                         strerror(-rc2));
9288                                 if (rc == 0)
9289                                         rc = rc2;
9290                                 break;
9291                         }
9292
9293                         if (print_fid)
9294                                 printf("%s ", fid_str);
9295
9296                         if (print_link)
9297                                 printf("%d ", linktmp);
9298
9299                         /* You may think this looks wrong or weird (and it is!)
9300                          * but we are actually trying to preserve the old quirky
9301                          * behaviors (enforced by our old quirky tests!) that
9302                          * make lfs so much fun to work on:
9303                          *
9304                          *   lustre 0x200000007:0x1:0x0 => "/"
9305                          *   /mnt/lustre 0x200000007:0x1:0x0 => "/mnt/lustre//"
9306                          *
9307                          * Note that llapi_fid2path() returns "" for the root
9308                          * FID. */
9309
9310                         printf("%s%s%s\n",
9311                                print_mnt_dir ? mnt_dir : "",
9312                                (print_mnt_dir || *path_buf == '\0') ? "/" : "",
9313                                path_buf);
9314
9315                         if (linkno >= 0)
9316                                 /* specified linkno */
9317                                 break;
9318
9319                         if (oldtmp == linktmp)
9320                                 /* no more links */
9321                                 break;
9322                 }
9323         }
9324 out:
9325         if (!(mnt_fd < 0))
9326                 close(mnt_fd);
9327
9328         return rc;
9329 }
9330
9331 static int lfs_path2fid(int argc, char **argv)
9332 {
9333         struct option long_opts[] = {
9334                 { .val = 'p', .name = "parents", .has_arg = no_argument },
9335                 { .name = NULL } };
9336         char            **path;
9337         const char        short_opts[] = "p";
9338         const char       *sep = "";
9339         struct lu_fid     fid;
9340         int               rc = 0;
9341         bool              show_parents = false;
9342
9343         while ((rc = getopt_long(argc, argv, short_opts,
9344                                  long_opts, NULL)) != -1) {
9345                 switch (rc) {
9346                 case 'p':
9347                         show_parents = true;
9348                         break;
9349                 default:
9350                         fprintf(stderr,
9351                                 "%s path2fid: unrecognized option '%s'\n",
9352                                 progname, argv[optind - 1]);
9353                         return CMD_HELP;
9354                 }
9355         }
9356
9357         if (optind > argc - 1) {
9358                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
9359                         progname);
9360                 return CMD_HELP;
9361         } else if (optind < argc - 1) {
9362                 sep = ": ";
9363         }
9364
9365         rc = 0;
9366         for (path = argv + optind; *path != NULL; path++) {
9367                 int err = 0;
9368
9369                 if (!show_parents) {
9370                         err = llapi_path2fid(*path, &fid);
9371                         if (!err)
9372                                 printf("%s%s"DFID"\n",
9373                                        *sep != '\0' ? *path : "", sep,
9374                                        PFID(&fid));
9375                 } else {
9376                         char            name[NAME_MAX + 1];
9377                         unsigned int    linkno = 0;
9378
9379                         while ((err = llapi_path2parent(*path, linkno, &fid,
9380                                                 name, sizeof(name))) == 0) {
9381                                 if (*sep != '\0' && linkno == 0)
9382                                         printf("%s%s", *path, sep);
9383
9384                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
9385                                        PFID(&fid), name);
9386                                 linkno++;
9387                         }
9388
9389                         /* err == -ENODATA is end-of-loop */
9390                         if (linkno > 0 && err == -ENODATA) {
9391                                 printf("\n");
9392                                 err = 0;
9393                         }
9394                 }
9395
9396                 if (err) {
9397                         fprintf(stderr,
9398                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
9399                                 progname, show_parents ? "parent " : "", *path,
9400                                 strerror(-err));
9401                         if (rc == 0) {
9402                                 rc = err;
9403                                 errno = -err;
9404                         }
9405                 }
9406         }
9407
9408         return rc;
9409 }
9410
9411 #define MAX_ERRNO       4095
9412 #define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
9413
9414 static int lfs_rmfid_and_show_errors(const char *device, struct fid_array *fa)
9415 {
9416         int rc, rc2, k;
9417
9418         rc = llapi_rmfid(device, fa);
9419         if (rc < 0) {
9420                 fprintf(stderr, "%s rmfid: cannot remove FIDs: %s\n",
9421                         progname, strerror(-rc));
9422                 return rc;
9423         }
9424
9425         for (k = 0; k < fa->fa_nr; k++) {
9426                 rc2 = (__s32)fa->fa_fids[k].f_ver;
9427                 if (!IS_ERR_VALUE(rc2))
9428                         continue;
9429
9430                 if (rc == 0)
9431                         rc = rc2;
9432
9433                 fa->fa_fids[k].f_ver = 0;
9434                 fprintf(stderr, "%s rmfid: cannot remove "DFID": %s\n",
9435                         progname, PFID(&fa->fa_fids[k]), strerror(-rc2));
9436         }
9437
9438         return rc;
9439 }
9440
9441 static int lfs_rmfid(int argc, char **argv)
9442 {
9443         char *fidstr, *device;
9444         int rc = 0, rc2, nr;
9445         struct fid_array *fa;
9446
9447         if (optind > argc - 1) {
9448                 fprintf(stderr, "%s rmfid: missing dirname\n", progname);
9449                 return CMD_HELP;
9450         }
9451
9452         device = argv[optind++];
9453
9454         nr = argc - optind;
9455         fa = malloc(offsetof(struct fid_array, fa_fids[nr + 1]));
9456         if (!fa)
9457                 return -ENOMEM;
9458
9459         fa->fa_nr = 0;
9460         rc = 0;
9461         while (optind < argc) {
9462                 int found;
9463
9464                 fidstr = argv[optind++];
9465                 while (*fidstr == '[')
9466                         fidstr++;
9467                 found = sscanf(fidstr, SFID, RFID(&fa->fa_fids[fa->fa_nr]));
9468                 if (found != 3) {
9469                         fprintf(stderr, "unrecognized FID: %s\n",
9470                                 argv[optind - 1]);
9471                         exit(1);
9472                 }
9473                 fa->fa_nr++;
9474                 if (fa->fa_nr == OBD_MAX_FIDS_IN_ARRAY) {
9475                         /* start another batch */
9476                         rc2 = lfs_rmfid_and_show_errors(device, fa);
9477                         if (rc2 && !rc)
9478                                 rc = rc2;
9479                         fa->fa_nr = 0;
9480                 }
9481         }
9482         if (fa->fa_nr) {
9483                 rc2 = lfs_rmfid_and_show_errors(device, fa);
9484                 if (rc2 && !rc)
9485                         rc = rc2;
9486         }
9487
9488         return rc;
9489 }
9490
9491 static int lfs_data_version(int argc, char **argv)
9492 {
9493         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
9494         __u64 data_version;
9495         char *path;
9496         int fd;
9497         int rc;
9498         int c;
9499
9500         if (argc < 2) {
9501                 fprintf(stderr, "%s: FILE must be specified\n",
9502                         progname);
9503                 return CMD_HELP;
9504         }
9505
9506         while ((c = getopt(argc, argv, "hnrw")) != -1) {
9507                 switch (c) {
9508                 case 'n':
9509                         data_version_flags = 0;
9510                         break;
9511                 case 'r':
9512                         data_version_flags |= LL_DV_RD_FLUSH;
9513                         break;
9514                 case 'w':
9515                         data_version_flags |= LL_DV_WR_FLUSH;
9516                         break;
9517                 default:
9518                         fprintf(stderr,
9519                                 "%s data_version: unrecognized option '%s'\n",
9520                                 progname, argv[optind - 1]);
9521                         fallthrough;
9522                 case 'h':
9523                         return CMD_HELP;
9524                 }
9525         }
9526         if (optind == argc) {
9527                 fprintf(stderr, "%s data_version: FILE must be specified\n",
9528                         progname);
9529                 return CMD_HELP;
9530         }
9531
9532         path = argv[optind];
9533         fd = open(path, O_RDONLY);
9534         if (fd < 0) {
9535                 rc = -errno;
9536                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
9537                         progname, path, strerror(-rc));
9538                 return rc;
9539         }
9540
9541         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
9542         if (rc < 0)
9543                 fprintf(stderr,
9544                         "%s data_version: cannot get version for '%s': %s\n",
9545                         progname, path, strerror(-rc));
9546         else
9547                 printf("%ju" "\n", (uintmax_t)data_version);
9548
9549         close(fd);
9550         return rc;
9551 }
9552
9553 static int lfs_hsm_state(int argc, char **argv)
9554 {
9555         int rc;
9556         int i = 1;
9557         char *path;
9558         struct hsm_user_state hus;
9559
9560         if (argc < 2)
9561                 return CMD_HELP;
9562
9563         do {
9564                 path = argv[i];
9565
9566                 rc = llapi_hsm_state_get(path, &hus);
9567                 if (rc) {
9568                         fprintf(stderr, "can't get hsm state for %s: %s\n",
9569                                 path, strerror(errno = -rc));
9570                         return rc;
9571                 }
9572
9573                 /* Display path name and status flags */
9574                 printf("%s: (0x%08x)", path, hus.hus_states);
9575
9576                 if (hus.hus_states & HS_RELEASED)
9577                         printf(" released");
9578                 if (hus.hus_states & HS_EXISTS)
9579                         printf(" exists");
9580                 if (hus.hus_states & HS_DIRTY)
9581                         printf(" dirty");
9582                 if (hus.hus_states & HS_ARCHIVED)
9583                         printf(" archived");
9584                 /* Display user-settable flags */
9585                 if (hus.hus_states & HS_NORELEASE)
9586                         printf(" never_release");
9587                 if (hus.hus_states & HS_NOARCHIVE)
9588                         printf(" never_archive");
9589                 if (hus.hus_states & HS_LOST)
9590                         printf(" lost_from_hsm");
9591
9592                 if (hus.hus_archive_id != 0)
9593                         printf(", archive_id:%d", hus.hus_archive_id);
9594                 printf("\n");
9595
9596         } while (++i < argc);
9597
9598         return 0;
9599 }
9600
9601 #define LFS_HSM_SET   0
9602 #define LFS_HSM_CLEAR 1
9603
9604 /**
9605  * Generic function to set or clear HSM flags.
9606  * Used by hsm_set and hsm_clear.
9607  *
9608  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
9609  */
9610 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
9611 {
9612         struct option long_opts[] = {
9613         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
9614         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
9615         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
9616         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
9617         { .val = 'h',   .name = "help",         .has_arg = no_argument },
9618         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
9619         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
9620         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
9621         { .name = NULL } };
9622         __u64 mask = 0;
9623         int c, rc;
9624         char *path;
9625         __u32 archive_id = 0;
9626         char *end = NULL;
9627
9628         if (argc < 3)
9629                 return CMD_HELP;
9630
9631         while ((c = getopt_long(argc, argv, "aAdehi:lr",
9632                                 long_opts, NULL)) != -1) {
9633                 switch (c) {
9634                 case 'l':
9635                         mask |= HS_LOST;
9636                         break;
9637                 case 'a':
9638                         mask |= HS_NOARCHIVE;
9639                         break;
9640                 case 'A':
9641                         mask |= HS_ARCHIVED;
9642                         break;
9643                 case 'r':
9644                         mask |= HS_NORELEASE;
9645                         break;
9646                 case 'd':
9647                         mask |= HS_DIRTY;
9648                         break;
9649                 case 'e':
9650                         mask |= HS_EXISTS;
9651                         break;
9652                 case 'i':
9653                         errno = 0;
9654                         archive_id = strtol(optarg, &end, 10);
9655                         if (errno != 0 || *end != '\0' || archive_id < 0) {
9656                                 fprintf(stderr,
9657                                         "%s: invalid archive_id: '%s'\n",
9658                                         progname, end);
9659                                 return CMD_HELP;
9660                         }
9661                         break;
9662                 default:
9663                         fprintf(stderr, "%s: unrecognized option '%s'\n",
9664                                 progname, argv[optind - 1]);
9665                         fallthrough;
9666                 case 'h':
9667                         return CMD_HELP;
9668                 }
9669         }
9670
9671         /* User should have specified a flag */
9672         if (mask == 0)
9673                 return CMD_HELP;
9674
9675         while (optind < argc) {
9676                 path = argv[optind];
9677
9678                 /* If mode == 0, this means we apply the mask. */
9679                 if (mode == LFS_HSM_SET)
9680                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
9681                 else
9682                         rc = llapi_hsm_state_set(path, 0, mask, 0);
9683
9684                 if (rc != 0) {
9685                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
9686                                 path, strerror(errno = -rc));
9687                         return rc;
9688                 }
9689                 optind++;
9690         }
9691
9692         return 0;
9693 }
9694
9695 static int lfs_hsm_action(int argc, char **argv)
9696 {
9697         int                              rc;
9698         int                              i = 1;
9699         char                            *path;
9700         struct hsm_current_action        hca;
9701         struct hsm_extent                he;
9702         enum hsm_user_action             hua;
9703         enum hsm_progress_states         hps;
9704
9705         if (argc < 2)
9706                 return CMD_HELP;
9707
9708         do {
9709                 path = argv[i];
9710
9711                 rc = llapi_hsm_current_action(path, &hca);
9712                 if (rc) {
9713                         fprintf(stderr, "can't get hsm action for %s: %s\n",
9714                                 path, strerror(errno = -rc));
9715                         return rc;
9716                 }
9717                 he = hca.hca_location;
9718                 hua = hca.hca_action;
9719                 hps = hca.hca_state;
9720
9721                 printf("%s: %s", path, hsm_user_action2name(hua));
9722
9723                 /* Skip file without action */
9724                 if (hca.hca_action == HUA_NONE) {
9725                         printf("\n");
9726                         continue;
9727                 }
9728
9729                 printf(" %s ", hsm_progress_state2name(hps));
9730
9731                 if ((hps == HPS_RUNNING) &&
9732                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
9733                         printf("(%llu bytes moved)\n",
9734                                (unsigned long long)he.length);
9735                 else if ((he.offset + he.length) == LUSTRE_EOF)
9736                         printf("(from %llu to EOF)\n",
9737                                (unsigned long long)he.offset);
9738                 else
9739                         printf("(from %llu to %llu)\n",
9740                                (unsigned long long)he.offset,
9741                                (unsigned long long)(he.offset + he.length));
9742
9743         } while (++i < argc);
9744
9745         return 0;
9746 }
9747
9748 static int lfs_hsm_set(int argc, char **argv)
9749 {
9750         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
9751 }
9752
9753 static int lfs_hsm_clear(int argc, char **argv)
9754 {
9755         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
9756 }
9757
9758 /**
9759  * Check file state and return its fid, to be used by lfs_hsm_request().
9760  *
9761  * \param[in]     file      Path to file to check
9762  * \param[in,out] fid       Pointer to allocated lu_fid struct.
9763  * \param[in,out] last_dev  Pointer to last device id used.
9764  *
9765  * \return 0 on success.
9766  */
9767 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
9768                                 dev_t *last_dev)
9769 {
9770         struct stat     st;
9771         int             rc;
9772
9773         rc = lstat(file, &st);
9774         if (rc) {
9775                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
9776                 return -errno;
9777         }
9778         /*
9779          * Checking for regular file as archiving as posix copytool
9780          * rejects archiving files other than regular files
9781          */
9782         if (!S_ISREG(st.st_mode)) {
9783                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
9784                 return CMD_HELP;
9785         }
9786         /* A request should be ... */
9787         if (*last_dev != st.st_dev && *last_dev != 0) {
9788                 fprintf(stderr,
9789                         "All files should be on the same filesystem: %s\n",
9790                         file);
9791                 return -EINVAL;
9792         }
9793         *last_dev = st.st_dev;
9794
9795         rc = llapi_path2fid(file, fid);
9796         if (rc) {
9797                 fprintf(stderr, "Cannot read FID of %s: %s\n",
9798                         file, strerror(-rc));
9799                 return rc;
9800         }
9801         return 0;
9802 }
9803
9804 /* Fill an HSM HUR item with a given file name.
9805  *
9806  * If mntpath is set, then the filename is actually a FID, and no
9807  * lookup on the filesystem will be performed.
9808  *
9809  * \param[in]  hur         the user request to fill
9810  * \param[in]  idx         index of the item inside the HUR to fill
9811  * \param[in]  mntpath     mountpoint of Lustre
9812  * \param[in]  fname       filename (if mtnpath is NULL)
9813  *                         or FID (if mntpath is set)
9814  * \param[in]  last_dev    pointer to last device id used
9815  *
9816  * \retval 0 on success
9817  * \retval CMD_HELP or a negative errno on error
9818  */
9819 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
9820                          const char *mntpath, const char *fname,
9821                          dev_t *last_dev)
9822 {
9823         struct hsm_user_item *hui = &hur->hur_user_item[idx];
9824         int rc;
9825
9826         hui->hui_extent.length = -1;
9827
9828         if (mntpath) {
9829                 rc = llapi_fid_parse(fname, &hui->hui_fid, NULL);
9830                 if (rc)
9831                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
9832                                 fname);
9833         } else {
9834                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
9835         }
9836
9837         if (rc == 0)
9838                 hur->hur_request.hr_itemcount++;
9839
9840         return rc;
9841 }
9842
9843 static int lfs_hsm_request(int argc, char **argv, int action)
9844 {
9845         struct option long_opts[] = {
9846         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
9847         { .val = 'D',   .name = "data",         .has_arg = required_argument },
9848         { .val = 'h',   .name = "help",         .has_arg = no_argument },
9849         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
9850         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
9851         { .name = NULL } };
9852         dev_t last_dev = 0;
9853         struct hsm_user_request *hur, *oldhur;
9854         int c, i;
9855         size_t len;
9856         int nbfile;
9857         char *line = NULL;
9858         char *filelist = NULL;
9859         char fullpath[PATH_MAX];
9860         char *opaque = NULL;
9861         int opaque_len = 0;
9862         int archive_id = 0;
9863         FILE *fp;
9864         int nbfile_alloc = 0;
9865         char *some_file = NULL;
9866         char *mntpath = NULL;
9867         int rc;
9868
9869         if (argc < 2)
9870                 return CMD_HELP;
9871
9872         while ((c = getopt_long(argc, argv, "a:D:hl:m:",
9873                                 long_opts, NULL)) != -1) {
9874                 switch (c) {
9875                 case 'l':
9876                         filelist = optarg;
9877                         break;
9878                 case 'D':
9879                         opaque = optarg;
9880                         break;
9881                 case 'a':
9882                         if (action != HUA_ARCHIVE &&
9883                             action != HUA_REMOVE) {
9884                                 fprintf(stderr,
9885                                         "error: -a is supported only when archiving or removing\n");
9886                                 return CMD_HELP;
9887                         }
9888                         archive_id = atoi(optarg);
9889                         break;
9890                 case 'm':
9891                         if (!some_file) {
9892                                 mntpath = optarg;
9893                                 some_file = strdup(optarg);
9894                         }
9895                         break;
9896                 default:
9897                         fprintf(stderr, "%s: unrecognized option '%s'\n",
9898                                 progname, argv[optind - 1]);
9899                         fallthrough;
9900                 case 'h':
9901                         return CMD_HELP;
9902                 }
9903         }
9904
9905         /* All remaining args are files, so we have at least nbfile */
9906         nbfile = argc - optind;
9907
9908         if ((nbfile == 0) && (!filelist))
9909                 return CMD_HELP;
9910
9911         if (opaque)
9912                 opaque_len = strlen(opaque);
9913
9914         /*
9915          * Alloc the request structure with enough place to store all files
9916          * from command line.
9917          */
9918         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
9919         if (!hur) {
9920                 fprintf(stderr, "Cannot create the request: %s\n",
9921                         strerror(errno));
9922                 return errno;
9923         }
9924         nbfile_alloc = nbfile;
9925
9926         hur->hur_request.hr_action = action;
9927         hur->hur_request.hr_archive_id = archive_id;
9928         hur->hur_request.hr_flags = 0;
9929
9930         /* All remaining args are files, add them */
9931         if (nbfile != 0 && some_file == NULL)
9932                 some_file = strdup(argv[optind]);
9933
9934         for (i = 0; i < nbfile; i++) {
9935                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
9936                                    &last_dev);
9937                 if (rc)
9938                         goto out_free;
9939         }
9940
9941         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
9942
9943         /* If a filelist was specified, read the filelist from it. */
9944         if (filelist) {
9945                 fp = fopen(filelist, "r");
9946                 if (!fp) {
9947                         fprintf(stderr, "Cannot read the file list %s: %s\n",
9948                                 filelist, strerror(errno));
9949                         rc = -errno;
9950                         goto out_free;
9951                 }
9952
9953                 while ((rc = getline(&line, &len, fp)) != -1) {
9954                         /*
9955                          * If allocated buffer was too small, get something
9956                          * larger
9957                          */
9958                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
9959                                 ssize_t size;
9960
9961                                 nbfile_alloc = nbfile_alloc * 2 + 1;
9962                                 oldhur = hur;
9963                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
9964                                                                    opaque_len);
9965                                 if (!hur) {
9966                                         fprintf(stderr,
9967                                                 "hsm: cannot allocate the request: %s\n",
9968                                                 strerror(errno));
9969                                         hur = oldhur;
9970                                         rc = -errno;
9971                                         fclose(fp);
9972                                         goto out_free;
9973                                 }
9974                                 size = hur_len(oldhur);
9975                                 if (size < 0) {
9976                                         fprintf(stderr,
9977                                                 "hsm: cannot allocate %u files + %u bytes data\n",
9978                                                 oldhur->hur_request.hr_itemcount,
9979                                                 oldhur->hur_request.hr_data_len);
9980                                         free(hur);
9981                                         hur = oldhur;
9982                                         rc = -E2BIG;
9983                                         fclose(fp);
9984                                         goto out_free;
9985                                 }
9986                                 memcpy(hur, oldhur, size);
9987                                 free(oldhur);
9988                         }
9989
9990                         /* Chop CR */
9991                         if (line[strlen(line) - 1] == '\n')
9992                                 line[strlen(line) - 1] = '\0';
9993
9994                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
9995                                            mntpath, line, &last_dev);
9996                         if (rc) {
9997                                 fclose(fp);
9998                                 goto out_free;
9999                         }
10000
10001                         if (!some_file) {
10002                                 some_file = line;
10003                                 line = NULL;
10004                         }
10005                 }
10006
10007                 rc = fclose(fp);
10008                 free(line);
10009         }
10010
10011         /* If a --data was used, add it to the request */
10012         hur->hur_request.hr_data_len = opaque_len;
10013         if (opaque)
10014                 memcpy(hur_data(hur), opaque, opaque_len);
10015
10016         /* Send the HSM request */
10017         if (realpath(some_file, fullpath) == NULL) {
10018                 fprintf(stderr, "Could not find path '%s': %s\n",
10019                         some_file, strerror(errno));
10020         }
10021         rc = llapi_hsm_request(fullpath, hur);
10022         if (rc) {
10023                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
10024                         some_file, strerror(-rc));
10025                 goto out_free;
10026         }
10027
10028 out_free:
10029         free(some_file);
10030         free(hur);
10031         return rc;
10032 }
10033
10034 static int lfs_hsm_archive(int argc, char **argv)
10035 {
10036         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
10037 }
10038
10039 static int lfs_hsm_restore(int argc, char **argv)
10040 {
10041         return lfs_hsm_request(argc, argv, HUA_RESTORE);
10042 }
10043
10044 static int lfs_hsm_release(int argc, char **argv)
10045 {
10046         return lfs_hsm_request(argc, argv, HUA_RELEASE);
10047 }
10048
10049 static int lfs_hsm_remove(int argc, char **argv)
10050 {
10051         return lfs_hsm_request(argc, argv, HUA_REMOVE);
10052 }
10053
10054 static int lfs_hsm_cancel(int argc, char **argv)
10055 {
10056         return lfs_hsm_request(argc, argv, HUA_CANCEL);
10057 }
10058
10059 static int lfs_swap_layouts(int argc, char **argv)
10060 {
10061         if (argc != 3)
10062                 return CMD_HELP;
10063
10064         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
10065                                   SWAP_LAYOUTS_KEEP_MTIME |
10066                                   SWAP_LAYOUTS_KEEP_ATIME);
10067 }
10068
10069 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
10070
10071 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
10072
10073 int lfs_get_mode(const char *string)
10074 {
10075         enum lock_mode_user mode;
10076
10077         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
10078                 if (lock_mode_names[mode] == NULL)
10079                         continue;
10080                 if (strcasecmp(string, lock_mode_names[mode]) == 0)
10081                         return mode;
10082         }
10083
10084         return -EINVAL;
10085 }
10086
10087 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
10088 {
10089         enum lu_ladvise_type advice;
10090
10091         for (advice = 0;
10092              advice < ARRAY_SIZE(ladvise_names); advice++) {
10093                 if (ladvise_names[advice] == NULL)
10094                         continue;
10095                 if (strcmp(string, ladvise_names[advice]) == 0)
10096                         return advice;
10097         }
10098
10099         return LU_LADVISE_INVALID;
10100 }
10101
10102 static int lfs_ladvise(int argc, char **argv)
10103 {
10104         struct option long_opts[] = {
10105         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
10106         { .val = 'b',   .name = "background",   .has_arg = no_argument },
10107         { .val = 'e',   .name = "end",          .has_arg = required_argument },
10108         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10109         { .val = 'l',   .name = "length",       .has_arg = required_argument },
10110         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
10111         { .val = 's',   .name = "start",        .has_arg = required_argument },
10112         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
10113         { .name = NULL } };
10114         struct llapi_lu_ladvise advice;
10115         enum lu_ladvise_type advice_type = LU_LADVISE_INVALID;
10116         unsigned long long start = 0;
10117         unsigned long long end = LUSTRE_EOF;
10118         unsigned long long length = 0;
10119         unsigned long long size_units;
10120         unsigned long long flags = 0;
10121         int c, fd, rc = 0;
10122         const char *path;
10123         int mode = 0;
10124
10125         optind = 0;
10126         while ((c = getopt_long(argc, argv, "a:be:hl:m:s:u",
10127                                 long_opts, NULL)) != -1) {
10128                 switch (c) {
10129                 case 'a':
10130                         advice_type = lfs_get_ladvice(optarg);
10131                         if (advice_type == LU_LADVISE_INVALID) {
10132                                 fprintf(stderr,
10133                                         "%s: invalid advice type '%s'\n",
10134                                         progname, optarg);
10135                                 fprintf(stderr, "Valid types:");
10136
10137                                 for (advice_type = 0;
10138                                      advice_type < ARRAY_SIZE(ladvise_names);
10139                                      advice_type++) {
10140                                         if (ladvise_names[advice_type] == NULL)
10141                                                 continue;
10142                                         fprintf(stderr, " %s",
10143                                                 ladvise_names[advice_type]);
10144                                 }
10145                                 fprintf(stderr, "\n");
10146
10147                                 return CMD_HELP;
10148                         }
10149                         break;
10150                 case 'b':
10151                         flags |= LF_ASYNC;
10152                         break;
10153                 case 'u':
10154                         flags |= LF_UNSET;
10155                         break;
10156                 case 'e':
10157                         size_units = 1;
10158                         rc = llapi_parse_size(optarg, &end,
10159                                               &size_units, 0);
10160                         if (rc) {
10161                                 fprintf(stderr, "%s: bad end offset '%s'\n",
10162                                         argv[0], optarg);
10163                                 return CMD_HELP;
10164                         }
10165                         break;
10166                 case 's':
10167                         size_units = 1;
10168                         rc = llapi_parse_size(optarg, &start,
10169                                               &size_units, 0);
10170                         if (rc) {
10171                                 fprintf(stderr,
10172                                         "%s: bad start offset '%s'\n",
10173                                         argv[0], optarg);
10174                                 return CMD_HELP;
10175                         }
10176                         break;
10177                 case 'l':
10178                         size_units = 1;
10179                         rc = llapi_parse_size(optarg, &length,
10180                                               &size_units, 0);
10181                         if (rc) {
10182                                 fprintf(stderr, "%s: bad length '%s'\n",
10183                                         argv[0], optarg);
10184                                 return CMD_HELP;
10185                         }
10186                         break;
10187                 case 'm':
10188                         mode = lfs_get_mode(optarg);
10189                         if (mode < 0) {
10190                                 fprintf(stderr,
10191                                         "%s: bad mode '%s', valid modes are READ or WRITE\n",
10192                                         argv[0], optarg);
10193                                 return CMD_HELP;
10194                         }
10195                         break;
10196                 default:
10197                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10198                                 progname, argv[optind - 1]);
10199                         fallthrough;
10200                 case 'h':
10201                         return CMD_HELP;
10202                 }
10203         }
10204
10205         if (advice_type == LU_LADVISE_INVALID) {
10206                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
10207                 fprintf(stderr, "Valid types:");
10208                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
10209                      advice_type++) {
10210                         if (ladvise_names[advice_type] == NULL)
10211                                 continue;
10212                         fprintf(stderr, " %s", ladvise_names[advice_type]);
10213                 }
10214                 fprintf(stderr, "\n");
10215                 return CMD_HELP;
10216         }
10217
10218         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
10219                 fprintf(stderr,
10220                         "%s: Lock no expand advice is a per file descriptor advice, so when called from lfs, it does nothing.\n",
10221                         argv[0]);
10222                 return CMD_HELP;
10223         }
10224
10225         if (argc <= optind) {
10226                 fprintf(stderr, "%s: please give one or more file names\n",
10227                         argv[0]);
10228                 return CMD_HELP;
10229         }
10230
10231         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
10232                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
10233                         argv[0]);
10234                 return CMD_HELP;
10235         }
10236
10237         if (end == LUSTRE_EOF && length != 0)
10238                 end = start + length;
10239
10240         if (end <= start) {
10241                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
10242                         argv[0], start, end);
10243                 return CMD_HELP;
10244         }
10245
10246         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
10247                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
10248                         argv[0]);
10249                 return CMD_HELP;
10250         }
10251
10252         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
10253                 fprintf(stderr, "%s: mode is required with lockahead\n",
10254                         argv[0]);
10255                 return CMD_HELP;
10256         }
10257
10258         while (optind < argc) {
10259                 int rc2;
10260
10261                 path = argv[optind++];
10262
10263                 fd = open(path, O_RDONLY);
10264                 if (fd < 0) {
10265                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10266                                 argv[0], path, strerror(errno));
10267                         rc2 = -errno;
10268                         goto next;
10269                 }
10270
10271                 advice.lla_start = start;
10272                 advice.lla_end = end;
10273                 advice.lla_advice = advice_type;
10274                 advice.lla_value1 = 0;
10275                 advice.lla_value2 = 0;
10276                 advice.lla_value3 = 0;
10277                 advice.lla_value4 = 0;
10278                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
10279                         advice.lla_lockahead_mode = mode;
10280                         advice.lla_peradvice_flags = flags;
10281                 }
10282
10283                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
10284                 close(fd);
10285                 if (rc2 < 0) {
10286                         fprintf(stderr,
10287                                 "%s: cannot give advice '%s' to file '%s': %s\n",
10288                                 argv[0], ladvise_names[advice_type],
10289                                 path, strerror(errno));
10290
10291                         goto next;
10292                 }
10293
10294 next:
10295                 if (rc == 0 && rc2 < 0)
10296                         rc = rc2;
10297         }
10298         return rc;
10299 }
10300
10301 static const char *const heat_names[] = LU_HEAT_NAMES;
10302
10303 static int lfs_heat_get(int argc, char **argv)
10304 {
10305         struct lu_heat *heat;
10306         int rc = 0, rc2;
10307         char *path;
10308         int fd;
10309         int i;
10310
10311         if (argc <= 1)
10312                 return CMD_HELP;
10313
10314         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
10315         if (!heat) {
10316                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
10317                 return -ENOMEM;
10318         }
10319
10320         optind = 1;
10321         while (optind < argc) {
10322                 path = argv[optind++];
10323
10324                 fd = open(path, O_RDONLY);
10325                 if (fd < 0) {
10326                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10327                                 argv[0], path, strerror(errno));
10328                         rc2 = -errno;
10329                         goto next;
10330                 }
10331
10332                 heat->lh_count = OBD_HEAT_COUNT;
10333                 rc2 = llapi_heat_get(fd, heat);
10334                 close(fd);
10335                 if (rc2 < 0) {
10336                         fprintf(stderr,
10337                                 "%s: cannot get heat of file '%s': %s\n",
10338                                 argv[0], path, strerror(errno));
10339                         goto next;
10340                 }
10341
10342                 printf("flags: %x\n", heat->lh_flags);
10343                 for (i = 0; i < heat->lh_count; i++)
10344                         printf("%s: %llu\n", heat_names[i],
10345                                (unsigned long long)heat->lh_heat[i]);
10346 next:
10347                 if (rc == 0 && rc2 < 0)
10348                         rc = rc2;
10349         }
10350
10351         free(heat);
10352         return rc;
10353 }
10354
10355 static int lfs_heat_set(int argc, char **argv)
10356 {
10357         struct option long_opts[] = {
10358         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
10359         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10360         { .val = 'o',   .name = "off",          .has_arg = no_argument },
10361         { .val = 'O',   .name = "on",           .has_arg = no_argument },
10362         { .name = NULL } };
10363         enum lu_heat_flag flags = 0;
10364         int rc = 0, rc2;
10365         char *path;
10366         int fd;
10367         int c;
10368
10369         if (argc <= 1)
10370                 return CMD_HELP;
10371
10372         optind = 0;
10373         while ((c = getopt_long(argc, argv, "choO", long_opts, NULL)) != -1) {
10374                 switch (c) {
10375                 case 'c':
10376                         flags |= LU_HEAT_FLAG_CLEAR;
10377                         break;
10378                 case 'o':
10379                         flags |= LU_HEAT_FLAG_CLEAR;
10380                         flags |= LU_HEAT_FLAG_OFF;
10381                         break;
10382                 case 'O':
10383                         flags &= ~LU_HEAT_FLAG_OFF;
10384                         break;
10385                 default:
10386                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10387                                 progname, argv[optind - 1]);
10388                         fallthrough;
10389                 case 'h':
10390                         return CMD_HELP;
10391                 }
10392         }
10393
10394         if (argc <= optind) {
10395                 fprintf(stderr, "%s: please give one or more file names\n",
10396                         argv[0]);
10397                 return CMD_HELP;
10398         }
10399
10400         while (optind < argc) {
10401                 path = argv[optind++];
10402
10403                 fd = open(path, O_RDONLY);
10404                 if (fd < 0) {
10405                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10406                                 argv[0], path, strerror(errno));
10407                         rc2 = -errno;
10408                         goto next;
10409                 }
10410
10411                 rc2 = llapi_heat_set(fd, flags);
10412                 close(fd);
10413                 if (rc2 < 0) {
10414                         fprintf(stderr,
10415                                 "%s: cannot setflags heat of file '%s': %s\n",
10416                                 argv[0], path, strerror(errno));
10417                         goto next;
10418                 }
10419 next:
10420                 if (rc == 0 && rc2 < 0)
10421                         rc = rc2;
10422         }
10423         return rc;
10424 }
10425
10426 /**
10427  * The input string contains a comma delimited list of component ids and
10428  * ranges, for example "1,2-4,7".
10429  */
10430 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
10431 {
10432         bool end_of_loop = false;
10433         char *ptr = NULL;
10434         int nr = 0;
10435         int rc;
10436
10437         if (!arg)
10438                 return -EINVAL;
10439
10440         while (!end_of_loop) {
10441                 int start_index;
10442                 int end_index;
10443                 int i;
10444                 char *endptr = NULL;
10445
10446                 rc = -EINVAL;
10447                 ptr = strchrnul(arg, ',');
10448                 end_of_loop = *ptr == '\0';
10449                 *ptr = '\0';
10450
10451                 start_index = strtol(arg, &endptr, 0);
10452                 if (endptr == arg) /* no data at all */
10453                         break;
10454                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
10455                         break;
10456                 if (start_index < 0)
10457                         break;
10458
10459                 end_index = start_index;
10460                 if (*endptr == '-') {
10461                         end_index = strtol(endptr + 1, &endptr, 0);
10462                         if (*endptr != '\0')
10463                                 break;
10464                         if (end_index < start_index)
10465                                 break;
10466                 }
10467
10468                 for (i = start_index; i <= end_index && size > 0; i++) {
10469                         int j;
10470
10471                         /* remove duplicate */
10472                         for (j = 0; j < nr; j++) {
10473                                 if (ids[j] == i)
10474                                         break;
10475                         }
10476                         if (j == nr) { /* no duplicate */
10477                                 ids[nr++] = i;
10478                                 --size;
10479                         }
10480                 }
10481
10482                 if (size == 0 && i < end_index)
10483                         break;
10484
10485                 *ptr = ',';
10486                 arg = ++ptr;
10487                 rc = 0;
10488         }
10489         if (!end_of_loop && ptr)
10490                 *ptr = ',';
10491
10492         return rc < 0 ? rc : nr;
10493 }
10494
10495 /**
10496  * struct verify_mirror_id - Mirror id to be verified.
10497  * @mirror_id:   A specified mirror id.
10498  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
10499  */
10500 struct verify_mirror_id {
10501         __u16 mirror_id;
10502         bool is_valid_id;
10503 };
10504
10505 /**
10506  * compare_mirror_ids() - Compare mirror ids.
10507  * @layout: Mirror component list.
10508  * @cbdata: Callback data in verify_mirror_id structure.
10509  *
10510  * This is a callback function called by llapi_layout_comp_iterate()
10511  * to compare the specified mirror id with the one in the current
10512  * component of @layout. If they are the same, then the specified
10513  * mirror id is valid.
10514  *
10515  * Return: a negative error code on failure or
10516  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
10517  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
10518  */
10519 static inline
10520 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
10521 {
10522         struct verify_mirror_id *mirror_id_cbdata =
10523                                  (struct verify_mirror_id *)cbdata;
10524         uint32_t mirror_id;
10525         int rc = 0;
10526
10527         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
10528         if (rc < 0) {
10529                 rc = -errno;
10530                 fprintf(stderr,
10531                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
10532                         progname, strerror(errno));
10533                 return rc;
10534         }
10535
10536         if (mirror_id_cbdata->mirror_id == mirror_id) {
10537                 mirror_id_cbdata->is_valid_id = true;
10538                 return LLAPI_LAYOUT_ITER_STOP;
10539         }
10540
10541         return LLAPI_LAYOUT_ITER_CONT;
10542 }
10543
10544 /**
10545  * verify_mirror_ids() - Verify specified mirror ids.
10546  * @fname:      Mirrored file name.
10547  * @mirror_ids: Specified mirror ids to be verified.
10548  * @ids_nr:     Number of specified mirror ids.
10549  *
10550  * This function verifies that specified @mirror_ids are valid
10551  * in the mirrored file @fname.
10552  *
10553  * Return: 0 on success or a negative error code on failure.
10554  */
10555 static inline
10556 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
10557 {
10558         struct llapi_layout *layout = NULL;
10559         struct verify_mirror_id mirror_id_cbdata = { 0 };
10560         struct stat stbuf;
10561         uint32_t flr_state;
10562         int i;
10563         int fd;
10564         int rc = 0;
10565         int rc2 = 0;
10566
10567         if (ids_nr <= 0)
10568                 return -EINVAL;
10569
10570         if (stat(fname, &stbuf) < 0) {
10571                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10572                         progname, fname, strerror(errno));
10573                 rc = -errno;
10574                 goto error;
10575         }
10576
10577         if (!S_ISREG(stbuf.st_mode)) {
10578                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10579                         progname, fname);
10580                 rc = -EINVAL;
10581                 goto error;
10582         }
10583
10584         fd = open(fname, O_DIRECT | O_RDONLY);
10585         if (fd < 0) {
10586                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10587                         progname, fname, strerror(errno));
10588                 rc = -errno;
10589                 goto error;
10590         }
10591
10592         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10593         if (rc < 0) {
10594                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10595                         progname, fname, strerror(errno));
10596                 goto close_fd;
10597         }
10598
10599         layout = llapi_layout_get_by_fd(fd, 0);
10600         if (!layout) {
10601                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10602                         progname, fname, strerror(errno));
10603                 rc = -errno;
10604                 llapi_lease_release(fd);
10605                 goto close_fd;
10606         }
10607
10608         rc = llapi_layout_flags_get(layout, &flr_state);
10609         if (rc < 0) {
10610                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10611                         progname, fname, strerror(errno));
10612                 rc = -errno;
10613                 goto free_layout;
10614         }
10615
10616         flr_state &= LCM_FL_FLR_MASK;
10617         switch (flr_state) {
10618         case LCM_FL_NONE:
10619                 rc = -EINVAL;
10620                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10621                         progname, fname, llapi_layout_flags_string(flr_state));
10622                 goto free_layout;
10623         default:
10624                 break;
10625         }
10626
10627         rc2 = 0;
10628         for (i = 0; i < ids_nr; i++) {
10629                 mirror_id_cbdata.mirror_id = mirror_ids[i];
10630                 mirror_id_cbdata.is_valid_id = false;
10631
10632                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
10633                                                &mirror_id_cbdata);
10634                 if (rc < 0) {
10635                         rc = -errno;
10636                         fprintf(stderr,
10637                                 "%s: '%s' failed to verify mirror id: %u.\n",
10638                                 progname, fname, mirror_ids[i]);
10639                         goto free_layout;
10640                 }
10641
10642                 if (!mirror_id_cbdata.is_valid_id) {
10643                         rc2 = -EINVAL;
10644                         fprintf(stderr,
10645                                 "%s: '%s' invalid specified mirror id: %u.\n",
10646                                 progname, fname, mirror_ids[i]);
10647                 }
10648         }
10649         rc = rc2;
10650
10651 free_layout:
10652         llapi_layout_free(layout);
10653         llapi_lease_release(fd);
10654 close_fd:
10655         close(fd);
10656 error:
10657         return rc;
10658 }
10659
10660 static inline
10661 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
10662                            __u16 *mirror_ids, int ids_nr)
10663 {
10664         struct llapi_resync_comp comp_array[1024] = { { 0 } };
10665         struct llapi_layout *layout;
10666         struct stat stbuf;
10667         uint32_t flr_state;
10668         uint64_t start;
10669         uint64_t end;
10670         int comp_size = 0;
10671         int idx;
10672         int fd;
10673         int rc;
10674         int rc2;
10675
10676         if (stat(fname, &stbuf) < 0) {
10677                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10678                         progname, fname, strerror(errno));
10679                 rc = -errno;
10680                 goto error;
10681         }
10682         if (!S_ISREG(stbuf.st_mode)) {
10683                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10684                         progname, fname);
10685                 rc = -EINVAL;
10686                 goto error;
10687         }
10688
10689         /* Allow mirror resync even without the key on encrypted files */
10690         fd = open(fname, O_DIRECT | O_RDWR | O_FILE_ENC);
10691         if (fd < 0) {
10692                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10693                         progname, fname, strerror(errno));
10694                 rc = -errno;
10695                 goto error;
10696         }
10697
10698         layout = llapi_layout_get_by_fd(fd, 0);
10699         if (!layout) {
10700                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10701                         progname, fname, strerror(errno));
10702                 rc = -errno;
10703                 goto close_fd;
10704         }
10705
10706         rc = llapi_layout_flags_get(layout, &flr_state);
10707         if (rc) {
10708                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10709                         progname, fname, strerror(errno));
10710                 rc = -errno;
10711                 goto free_layout;
10712         }
10713
10714         flr_state &= LCM_FL_FLR_MASK;
10715         if (flr_state == LCM_FL_NONE) {
10716                 rc = -EINVAL;
10717                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
10718                         progname, fname);
10719                 goto free_layout;
10720         }
10721
10722         /* get stale component info */
10723         comp_size = llapi_mirror_find_stale(layout, comp_array,
10724                                             ARRAY_SIZE(comp_array),
10725                                             mirror_ids, ids_nr);
10726         if (comp_size <= 0) {
10727                 rc = comp_size;
10728                 goto free_layout;
10729         }
10730
10731         ioc->lil_mode = LL_LEASE_WRLCK;
10732         ioc->lil_flags = LL_LEASE_RESYNC;
10733         rc = llapi_lease_set(fd, ioc);
10734         if (rc < 0) {
10735                 if (rc == -EALREADY)
10736                         rc = 0;
10737                 else
10738                         fprintf(stderr,
10739                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
10740                                 progname, fname, strerror(-rc));
10741                 goto free_layout;
10742         }
10743
10744         /* get the read range [start, end) */
10745         start = comp_array[0].lrc_start;
10746         end = comp_array[0].lrc_end;
10747         for (idx = 1; idx < comp_size; idx++) {
10748                 if (comp_array[idx].lrc_start < start)
10749                         start = comp_array[idx].lrc_start;
10750                 if (end < comp_array[idx].lrc_end)
10751                         end = comp_array[idx].lrc_end;
10752         }
10753
10754         rc = llapi_lease_check(fd);
10755         if (rc != LL_LEASE_WRLCK) {
10756                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
10757                         progname, fname);
10758                 goto free_layout;
10759         }
10760
10761         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
10762                                       start, end);
10763         if (rc < 0)
10764                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %s.\n",
10765                         progname, fname, strerror(-rc));
10766
10767         rc = migrate_set_timestamps(fd, &stbuf);
10768         if (rc < 0) {
10769                 fprintf(stderr, "%s: '%s' cannot set timestamps: %s\n",
10770                         progname, fname, strerror(-rc));
10771                 goto free_layout;
10772         }
10773
10774         /* need to do the lease unlock even resync fails */
10775         ioc->lil_mode = LL_LEASE_UNLCK;
10776         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10777         ioc->lil_count = 0;
10778         for (idx = 0; idx < comp_size; idx++) {
10779                 if (comp_array[idx].lrc_synced) {
10780                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
10781                         ioc->lil_count++;
10782                 }
10783         }
10784
10785         rc2 = llapi_lease_set(fd, ioc);
10786         /**
10787          * llapi_lease_set returns lease mode when it request to unlock
10788          * the lease lock.
10789          */
10790         if (rc2 <= 0) {
10791                 /* rc2 == 0 means lost lease lock */
10792                 if (rc2 == 0 && rc == 0)
10793                         rc = -EBUSY;
10794                 else
10795                         rc = rc2;
10796                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
10797                         progname, fname,
10798                         rc2 == 0 ? "lost lease lock" : strerror(-rc2));
10799
10800                 llapi_lease_release(fd);
10801                 goto free_layout;
10802         }
10803
10804 free_layout:
10805         llapi_layout_free(layout);
10806 close_fd:
10807         close(fd);
10808 error:
10809         return rc;
10810 }
10811
10812 static inline int lfs_mirror_resync(int argc, char **argv)
10813 {
10814         struct option long_opts[] = {
10815         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10816         { .val = 'o',   .name = "only",         .has_arg = required_argument },
10817         { .name = NULL } };
10818         struct ll_ioc_lease *ioc = NULL;
10819         __u16 mirror_ids[128] = { 0 };
10820         int ids_nr = 0;
10821         int c;
10822         int rc = 0;
10823
10824         while ((c = getopt_long(argc, argv, "ho:", long_opts, NULL)) >= 0) {
10825                 switch (c) {
10826                 case 'o':
10827                         rc = parse_mirror_ids(mirror_ids,
10828                                         sizeof(mirror_ids) / sizeof(__u16),
10829                                         optarg);
10830                         if (rc < 0) {
10831                                 fprintf(stderr,
10832                                         "%s: bad mirror ids '%s'.\n",
10833                                         argv[0], optarg);
10834                                 goto error;
10835                         }
10836                         ids_nr = rc;
10837                         break;
10838                 default:
10839                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10840                                 progname, argv[optind - 1]);
10841                         fallthrough;
10842                 case 'h':
10843                         rc = CMD_HELP;
10844                         goto error;
10845                 }
10846         }
10847
10848         if (argc == optind) {
10849                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
10850                 rc = CMD_HELP;
10851                 goto error;
10852         }
10853
10854         if (ids_nr > 0 && argc > optind + 1) {
10855                 fprintf(stderr,
10856                     "%s: option '--only' cannot be used upon multiple files.\n",
10857                         argv[0]);
10858                 rc = CMD_HELP;
10859                 goto error;
10860         }
10861
10862         if (ids_nr > 0) {
10863                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
10864                 if (rc < 0)
10865                         goto error;
10866         }
10867
10868         /* set the lease on the file */
10869         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
10870         if (!ioc) {
10871                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
10872                         argv[0], strerror(errno));
10873                 rc = -errno;
10874                 goto error;
10875         }
10876
10877         for (; optind < argc; optind++) {
10878                 rc = lfs_mirror_resync_file(argv[optind], ioc,
10879                                             mirror_ids, ids_nr);
10880                 /* ignore previous file's error, continue with next file */
10881
10882                 /* reset ioc */
10883                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
10884         }
10885
10886         free(ioc);
10887 error:
10888         return rc;
10889 }
10890
10891 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
10892 {
10893         struct llapi_layout *layout;
10894         int rc;
10895
10896         layout = llapi_layout_get_by_fd(fd, 0);
10897         if (!layout) {
10898                 fprintf(stderr, "could not get layout.\n");
10899                 return  -EINVAL;
10900         }
10901
10902         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
10903         if (rc < 0) {
10904                 fprintf(stderr, "failed to iterate layout\n");
10905                 llapi_layout_free(layout);
10906
10907                 return rc;
10908         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
10909                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
10910                 llapi_layout_free(layout);
10911
10912                 return -EINVAL;
10913         }
10914         llapi_layout_free(layout);
10915
10916         return 0;
10917 }
10918
10919 /**
10920  * Check whether two files are the same file
10921  * \retval      0  same file
10922  * \retval      1  not the same file
10923  * \retval      <0 error code
10924  */
10925 static inline int check_same_file(int fd, const char *f2)
10926 {
10927         struct stat stbuf1;
10928         struct stat stbuf2;
10929
10930         if (fstat(fd, &stbuf1) < 0)
10931                 return -errno;
10932
10933         if (stat(f2, &stbuf2) < 0)
10934                 return 1;
10935
10936         if (stbuf1.st_rdev == stbuf2.st_rdev &&
10937             stbuf1.st_ino == stbuf2.st_ino)
10938                 return 0;
10939
10940         return 1;
10941 }
10942
10943 static inline int lfs_mirror_read(int argc, char **argv)
10944 {
10945         int rc = CMD_HELP;
10946         __u16 mirror_id = 0;
10947         const char *outfile = NULL;
10948         char *fname;
10949         int fd = 0;
10950         int outfd;
10951         int c;
10952         void *buf;
10953         const size_t buflen = 4 << 20;
10954         off_t pos;
10955         struct option long_opts[] = {
10956         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10957         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
10958         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
10959         { .name = NULL } };
10960
10961         while ((c = getopt_long(argc, argv, "hN:o:", long_opts, NULL)) >= 0) {
10962                 char *end;
10963
10964                 switch (c) {
10965                 case 'N': {
10966                         unsigned long int id;
10967
10968                         errno = 0;
10969                         id = strtoul(optarg, &end, 0);
10970                         if (errno != 0 || *end != '\0' || id == 0 ||
10971                             id > UINT16_MAX) {
10972                                 fprintf(stderr,
10973                                         "%s %s: invalid mirror ID '%s'\n",
10974                                         progname, argv[0], optarg);
10975                                 return rc;
10976                         }
10977
10978                         mirror_id = (__u16)id;
10979                         break;
10980                 }
10981                 case 'o':
10982                         outfile = optarg;
10983                         break;
10984                 default:
10985                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10986                                 progname, argv[optind - 1]);
10987                         fallthrough;
10988                 case 'h':
10989                         return CMD_HELP;
10990                 }
10991         }
10992
10993         if (argc == optind) {
10994                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10995                         progname, argv[0]);
10996                 return rc;
10997         } else if (argc > optind + 1) {
10998                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10999                 return rc;
11000         }
11001
11002         if (mirror_id == 0) {
11003                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
11004                         progname, argv[0]);
11005                 return rc;
11006         }
11007
11008         /* open mirror file */
11009         fname = argv[optind];
11010         fd = open(fname, O_DIRECT | O_RDONLY);
11011         if (fd < 0) {
11012                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11013                         progname, argv[0], fname, strerror(errno));
11014                 return rc;
11015         }
11016
11017         /* verify mirror id */
11018         rc = verify_mirror_id_by_fd(fd, mirror_id);
11019         if (rc) {
11020                 fprintf(stderr,
11021                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11022                         progname, argv[0], mirror_id, fname);
11023                 goto close_fd;
11024         }
11025
11026         /* open output file - O_EXCL ensures output is not the same as input */
11027         if (outfile) {
11028                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
11029                 if (outfd < 0) {
11030                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
11031                                 progname, argv[0], outfile, strerror(errno));
11032                         rc = -errno;
11033                         goto close_fd;
11034                 }
11035         } else {
11036                 outfd = STDOUT_FILENO;
11037         }
11038
11039         /* allocate buffer */
11040         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
11041         if (rc) {
11042                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
11043                                 progname, argv[0], rc);
11044                 goto close_outfd;
11045         }
11046
11047         pos = 0;
11048         while (1) {
11049                 ssize_t bytes_read;
11050                 ssize_t written = 0;
11051
11052                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
11053                 if (bytes_read < 0) {
11054                         rc = bytes_read;
11055                         fprintf(stderr,
11056                                 "%s %s: fail to read data from mirror %u: %s\n",
11057                                 progname, argv[0], mirror_id, strerror(-rc));
11058                         goto free_buf;
11059                 }
11060
11061                 /* EOF reached */
11062                 if (bytes_read == 0)
11063                         break;
11064
11065                 while (written < bytes_read) {
11066                         ssize_t written2;
11067
11068                         written2 = write(outfd, buf + written,
11069                                          bytes_read - written);
11070                         if (written2 < 0) {
11071                                 fprintf(stderr,
11072                                         "%s %s: fail to write %s: %s\n",
11073                                         progname, argv[0], outfile ? : "STDOUT",
11074                                         strerror(errno));
11075                                 rc = -errno;
11076                                 goto free_buf;
11077                         }
11078                         written += written2;
11079                 }
11080
11081                 if (written != bytes_read) {
11082                         fprintf(stderr,
11083                 "%s %s: written %ld bytes does not match with %ld read.\n",
11084                                 progname, argv[0], written, bytes_read);
11085                         rc = -EIO;
11086                         goto free_buf;
11087                 }
11088
11089                 pos += bytes_read;
11090         }
11091
11092         fsync(outfd);
11093         rc = 0;
11094
11095 free_buf:
11096         free(buf);
11097 close_outfd:
11098         if (outfile)
11099                 close(outfd);
11100 close_fd:
11101         close(fd);
11102
11103         return rc;
11104 }
11105
11106 static inline int lfs_mirror_write(int argc, char **argv)
11107 {
11108         int rc = CMD_HELP;
11109         __u16 mirror_id = 0;
11110         const char *inputfile = NULL;
11111         char *fname;
11112         int fd = 0;
11113         int inputfd;
11114         int c;
11115         void *buf;
11116         const size_t buflen = 4 << 20;
11117         off_t pos;
11118         size_t page_size = sysconf(_SC_PAGESIZE);
11119         struct ll_ioc_lease_id ioc;
11120         struct option long_opts[] = {
11121         { .val = 'h',   .name = "help",         .has_arg = no_argument },
11122         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
11123         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
11124         { .name = NULL } };
11125
11126         while ((c = getopt_long(argc, argv, "hi:N:", long_opts, NULL)) >= 0) {
11127                 char *end;
11128
11129                 switch (c) {
11130                 case 'N': {
11131                         unsigned long int id;
11132
11133                         errno = 0;
11134                         id = strtoul(optarg, &end, 0);
11135                         if (errno != 0 || *end != '\0' || id == 0 ||
11136                             id > UINT16_MAX) {
11137                                 fprintf(stderr,
11138                                         "%s %s: invalid mirror ID '%s'\n",
11139                                         progname, argv[0], optarg);
11140                                 return rc;
11141                         }
11142
11143                         mirror_id = (__u16)id;
11144                         break;
11145                 }
11146                 case 'i':
11147                         inputfile = optarg;
11148                         break;
11149                 default:
11150                         fprintf(stderr, "%s: unrecognized option '%s'\n",
11151                                 progname, argv[optind - 1]);
11152                         fallthrough;
11153                 case 'h':
11154                         return CMD_HELP;
11155                 }
11156         }
11157
11158         if (argc == optind) {
11159                 fprintf(stderr, "%s %s: no mirrored file provided\n",
11160                         progname, argv[0]);
11161                 return rc;
11162         } else if (argc > optind + 1) {
11163                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
11164                 return rc;
11165         }
11166
11167         if (mirror_id == 0) {
11168                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
11169                         progname, argv[0]);
11170                 return rc;
11171         }
11172
11173         /* open mirror file */
11174         fname = argv[optind];
11175         fd = open(fname, O_DIRECT | O_WRONLY);
11176         if (fd < 0) {
11177                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11178                         progname, argv[0], fname, strerror(errno));
11179                 return rc;
11180         }
11181
11182         /* verify mirror id */
11183         rc = verify_mirror_id_by_fd(fd, mirror_id);
11184         if (rc) {
11185                 fprintf(stderr,
11186                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11187                         progname, argv[0], mirror_id, fname);
11188                 goto close_fd;
11189         }
11190
11191         /* open input file */
11192         if (inputfile) {
11193                 rc = check_same_file(fd, inputfile);
11194                 if (rc == 0) {
11195                         fprintf(stderr,
11196                         "%s %s: input file cannot be the mirrored file\n",
11197                                 progname, argv[0]);
11198                         goto close_fd;
11199                 }
11200                 if (rc < 0)
11201                         goto close_fd;
11202
11203                 inputfd = open(inputfile, O_RDONLY, 0644);
11204                 if (inputfd < 0) {
11205                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
11206                                 progname, argv[0], inputfile, strerror(errno));
11207                         rc = -errno;
11208                         goto close_fd;
11209                 }
11210         } else {
11211                 inputfd = STDIN_FILENO;
11212         }
11213
11214         /* allocate buffer */
11215         rc = posix_memalign(&buf, page_size, buflen);
11216         if (rc) {
11217                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
11218                         progname, argv[0], rc);
11219                 goto close_inputfd;
11220         }
11221
11222         /* prepare target mirror components instantiation */
11223         ioc.lil_mode = LL_LEASE_WRLCK;
11224         ioc.lil_flags = LL_LEASE_RESYNC;
11225         ioc.lil_mirror_id = mirror_id;
11226         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
11227         if (rc < 0) {
11228                 fprintf(stderr,
11229                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
11230                         progname, argv[0], fname, strerror(errno));
11231                 goto free_buf;
11232         }
11233
11234         pos = 0;
11235         while (1) {
11236                 ssize_t bytes_read;
11237                 ssize_t written;
11238                 size_t to_write;
11239
11240                 rc = llapi_lease_check(fd);
11241                 if (rc != LL_LEASE_WRLCK) {
11242                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
11243                                 progname, argv[0], fname);
11244                         goto free_buf;
11245                 }
11246
11247                 bytes_read = read(inputfd, buf, buflen);
11248                 if (bytes_read < 0) {
11249                         rc = bytes_read;
11250                         fprintf(stderr,
11251                                 "%s %s: fail to read data from '%s': %s\n",
11252                                 progname, argv[0], inputfile ? : "STDIN",
11253                                 strerror(errno));
11254                         rc = -errno;
11255                         goto free_buf;
11256                 }
11257
11258                 /* EOF reached */
11259                 if (bytes_read == 0)
11260                         break;
11261
11262                 /* round up to page align to make direct IO happy. */
11263                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
11264
11265                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
11266                                              pos);
11267                 if (written < 0) {
11268                         rc = written;
11269                         fprintf(stderr,
11270                               "%s %s: fail to write to mirror %u: %s\n",
11271                                 progname, argv[0], mirror_id,
11272                                 strerror(-rc));
11273                         goto free_buf;
11274                 }
11275
11276                 pos += bytes_read;
11277         }
11278
11279         if (pos & (page_size - 1)) {
11280                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
11281                 if (rc < 0)
11282                         goto free_buf;
11283         }
11284
11285         ioc.lil_mode = LL_LEASE_UNLCK;
11286         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
11287         ioc.lil_count = 0;
11288         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
11289         if (rc <= 0) {
11290                 if (rc == 0)
11291                         rc = -EBUSY;
11292                 fprintf(stderr,
11293                         "%s %s: release lease lock of '%s' failed: %s\n",
11294                         progname, argv[0], fname, strerror(errno));
11295                 goto free_buf;
11296         }
11297
11298         rc = 0;
11299
11300 free_buf:
11301         free(buf);
11302 close_inputfd:
11303         if (inputfile)
11304                 close(inputfd);
11305 close_fd:
11306         close(fd);
11307
11308         return rc;
11309 }
11310
11311 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
11312 {
11313         struct llapi_layout *layout;
11314         struct collect_ids_data cid = { .cid_ids = ids,
11315                                         .cid_count = 0,
11316                                         .cid_exclude = exclude_id, };
11317         int rc;
11318
11319         layout = llapi_layout_get_by_fd(fd, 0);
11320         if (!layout) {
11321                 fprintf(stderr, "could not get layout\n");
11322                 return -EINVAL;
11323         }
11324
11325         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
11326         if (rc < 0) {
11327                 fprintf(stderr, "failed to iterate layout\n");
11328                 llapi_layout_free(layout);
11329
11330                 return rc;
11331         }
11332         llapi_layout_free(layout);
11333
11334         return cid.cid_count;
11335 }
11336
11337 #ifndef MIRROR_ID_NEG
11338 #define MIRROR_ID_NEG         0x8000
11339 #endif
11340
11341 static inline int lfs_mirror_copy(int argc, char **argv)
11342 {
11343         int rc = CMD_HELP;
11344         __u16 read_mirror_id = 0;
11345         __u16 ids[128] = { 0 };
11346         int count = 0;
11347         struct llapi_layout *layout = NULL;
11348         struct llapi_resync_comp comp_array[1024] = { { 0 } };
11349         int comp_size = 0;
11350         char *fname;
11351         int fd = 0;
11352         int c;
11353         int i;
11354         ssize_t copied;
11355         struct ll_ioc_lease *ioc = NULL;
11356         struct ll_ioc_lease_id *resync_ioc;
11357         struct option long_opts[] = {
11358         { .val = 'h',   .name = "help",         .has_arg = no_argument },
11359         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
11360         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
11361         { .name = NULL } };
11362         char cmd[PATH_MAX];
11363
11364         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11365         progname = cmd;
11366         while ((c = getopt_long(argc, argv, "hi:o:", long_opts, NULL)) >= 0) {
11367                 char *end;
11368
11369                 switch (c) {
11370                 case 'i': {
11371                         unsigned long int id;
11372
11373                         errno = 0;
11374                         id = strtoul(optarg, &end, 0);
11375                         if (errno != 0 || *end != '\0' || id == 0 ||
11376                             id > UINT16_MAX) {
11377                                 fprintf(stderr,
11378                                         "%s: invalid read mirror ID '%s'\n",
11379                                         progname, optarg);
11380                                 return rc;
11381                         }
11382
11383                         read_mirror_id = (__u16)id;
11384                         break;
11385                 }
11386                 case 'o':
11387                         if (!strcmp(optarg, "-1")) {
11388                                 /* specify all other mirrors */
11389                                 ids[0] = (__u16)-1;
11390                                 count = 1;
11391                         } else {
11392                                 count = parse_mirror_ids((__u16 *)ids,
11393                                                          ARRAY_SIZE(ids),
11394                                                          optarg);
11395                                 if (count < 0)
11396                                         return rc;
11397                         }
11398                         break;
11399                 default:
11400                         fprintf(stderr, "%s: unrecognized option '%s'\n",
11401                                 progname, argv[optind - 1]);
11402                         fallthrough;
11403                 case 'h':
11404                         return CMD_HELP;
11405                 }
11406         }
11407
11408         if (argc == optind) {
11409                 fprintf(stderr, "%s %s: no mirrored file provided\n",
11410                         progname, argv[0]);
11411                 return rc;
11412         } else if (argc > optind + 1) {
11413                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
11414                 return rc;
11415         }
11416
11417         if (read_mirror_id == 0) {
11418                 fprintf(stderr,
11419                         "%s %s: no valid read mirror ID %d is provided\n",
11420                         progname, argv[0], read_mirror_id);
11421                 return rc;
11422         }
11423
11424         if (count == 0) {
11425                 fprintf(stderr,
11426                         "%s %s: no write mirror ID is provided\n",
11427                         progname, argv[0]);
11428                 return rc;
11429         }
11430
11431         for (i = 0; i < count; i++) {
11432                 if (read_mirror_id == ids[i]) {
11433                         fprintf(stderr,
11434                         "%s %s: read and write mirror ID cannot be the same\n",
11435                                 progname, argv[0]);
11436                         return rc;
11437                 }
11438         }
11439
11440         /* open mirror file */
11441         fname = argv[optind];
11442
11443         fd = open(fname, O_DIRECT | O_RDWR);
11444         if (fd < 0) {
11445                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11446                         progname, argv[0], fname, strerror(errno));
11447                 return rc;
11448         }
11449
11450         /* write to all other mirrors */
11451         if (ids[0] == (__u16)-1) {
11452                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
11453                 if (count <= 0) {
11454                         rc = count;
11455                         fprintf(stderr,
11456                         "%s %s: failed to get other mirror ids in '%s': %d\n",
11457                                 progname, argv[0], fname, rc);
11458                         goto close_fd;
11459                 }
11460         }
11461
11462         /* verify mirror id */
11463         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
11464         if (rc) {
11465                 fprintf(stderr,
11466                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11467                         progname, argv[0], read_mirror_id, fname);
11468                 goto close_fd;
11469         }
11470
11471         for (i = 0; i < count; i++) {
11472                 rc = verify_mirror_id_by_fd(fd, ids[i]);
11473                 if (rc) {
11474                         fprintf(stderr,
11475                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11476                                 progname, argv[0], ids[i], fname);
11477                         goto close_fd;
11478                 }
11479         }
11480
11481         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
11482         if (!ioc) {
11483                 fprintf(stderr,
11484                         "%s %s: cannot alloc comp id array for ioc: %s\n",
11485                         progname, argv[0], strerror(errno));
11486                 rc = -errno;
11487                 goto close_fd;
11488         }
11489
11490         /* get stale component info */
11491         layout = llapi_layout_get_by_fd(fd, 0);
11492         if (!layout) {
11493                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
11494                         progname, argv[0], fname, strerror(errno));
11495                 rc = -errno;
11496                 goto free_ioc;
11497         }
11498         comp_size = llapi_mirror_find_stale(layout, comp_array,
11499                                             ARRAY_SIZE(comp_array),
11500                                             ids, count);
11501         llapi_layout_free(layout);
11502         if (comp_size < 0) {
11503                 rc = comp_size;
11504                 goto free_ioc;
11505         }
11506
11507         /* prepare target mirror components instantiation */
11508         resync_ioc = (struct ll_ioc_lease_id *)ioc;
11509         resync_ioc->lil_mode = LL_LEASE_WRLCK;
11510         resync_ioc->lil_flags = LL_LEASE_RESYNC;
11511         if (count == 1)
11512                 resync_ioc->lil_mirror_id = ids[0];
11513         else
11514                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
11515         rc = llapi_lease_set(fd, ioc);
11516         if (rc < 0) {
11517                 fprintf(stderr,
11518                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
11519                         progname, argv[0], fname, strerror(errno));
11520                 goto free_ioc;
11521         }
11522
11523         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
11524         if (copied < 0) {
11525                 rc = copied;
11526                 fprintf(stderr, "%s %s: copy error: %d\n",
11527                         progname, argv[0], rc);
11528                 goto free_ioc;
11529         }
11530
11531         fprintf(stdout, "mirror copied successfully: ");
11532         for (i = 0; i < copied; i++)
11533                 fprintf(stdout, "%d ", ids[i]);
11534         fprintf(stdout, "\n");
11535
11536         ioc->lil_mode = LL_LEASE_UNLCK;
11537         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
11538         ioc->lil_count = 0;
11539         for (i = 0; i < comp_size; i++) {
11540                 int j;
11541
11542                 for (j = 0; j < copied; j++) {
11543                         if (comp_array[i].lrc_mirror_id != ids[j])
11544                                 continue;
11545
11546                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
11547                         ioc->lil_count++;
11548                 }
11549         }
11550         rc = llapi_lease_set(fd, ioc);
11551         if (rc <= 0) {
11552                 if (rc == 0)
11553                         rc = -EBUSY;
11554                 fprintf(stderr,
11555                         "%s %s: release lease lock of '%s' failed: %s\n",
11556                         progname, argv[0], fname, strerror(errno));
11557                 goto free_ioc;
11558         }
11559
11560         rc = 0;
11561
11562 free_ioc:
11563         free(ioc);
11564 close_fd:
11565         close(fd);
11566
11567         return rc;
11568 }
11569
11570 /**
11571  * struct verify_chunk - Mirror chunk to be verified.
11572  * @chunk:        [start, end) of the chunk.
11573  * @mirror_count: Number of mirror ids in @mirror_id array.
11574  * @mirror_id:    Array of valid mirror ids that cover the chunk.
11575  */
11576 struct verify_chunk {
11577         struct lu_extent chunk;
11578         unsigned int mirror_count;
11579         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
11580 };
11581
11582 /**
11583  * print_chunks() - Print chunk information.
11584  * @fname:       Mirrored file name.
11585  * @chunks:      Array of chunks.
11586  * @chunk_count: Number of chunks in @chunks array.
11587  *
11588  * This function prints [start, end) of each chunk in @chunks
11589  * for mirrored file @fname, and also prints the valid mirror ids
11590  * that cover the chunk.
11591  *
11592  * Return: void.
11593  */
11594 static inline
11595 void print_chunks(const char *fname, struct verify_chunk *chunks,
11596                   int chunk_count)
11597 {
11598         int i;
11599         int j;
11600
11601         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
11602         for (i = 0; i < chunk_count; i++) {
11603                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
11604
11605                 if (chunks[i].mirror_count == 0)
11606                         fprintf(stdout, "\t[");
11607                 else {
11608                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
11609                         for (j = 1; j < chunks[i].mirror_count; j++)
11610                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
11611                 }
11612                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
11613         }
11614         fprintf(stdout, "\n");
11615 }
11616
11617 /**
11618  * print_checksums() - Print CRC-32 checksum values.
11619  * @chunk: A chunk and its corresponding valid mirror ids.
11620  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
11621  *
11622  * This function prints CRC-32 checksum values on @chunk for
11623  * each valid mirror that covers it.
11624  *
11625  * Return: void.
11626  */
11627 static inline
11628 void print_checksums(struct verify_chunk *chunk, unsigned long *crc,
11629                      unsigned long long pos, unsigned long long len)
11630 {
11631         int i;
11632
11633         fprintf(stdout,
11634                 "CRC-32 checksum value for chunk "DEXT":\n", pos, pos + len);
11635         for (i = 0; i < chunk->mirror_count; i++)
11636                 fprintf(stdout, "Mirror %u:\t%#lx\n",
11637                         chunk->mirror_id[i], crc[i]);
11638         fprintf(stdout, "\n");
11639 }
11640
11641 /**
11642  * filter_mirror_id() - Filter specified mirror ids.
11643  * @chunks:      Array of chunks.
11644  * @chunk_count: Number of chunks in @chunks array.
11645  * @mirror_ids:  Specified mirror ids to be verified.
11646  * @ids_nr:      Number of specified mirror ids.
11647  *
11648  * This function scans valid mirror ids that cover each chunk in @chunks
11649  * and filters specified mirror ids.
11650  *
11651  * Return: void.
11652  */
11653 static inline
11654 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
11655                       __u16 *mirror_ids, int ids_nr)
11656 {
11657         int i;
11658         int j;
11659         int k;
11660         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11661         unsigned int valid_count = 0;
11662
11663         for (i = 0; i < chunk_count; i++) {
11664                 if (chunks[i].mirror_count == 0)
11665                         continue;
11666
11667                 valid_count = 0;
11668                 for (j = 0; j < ids_nr; j++) {
11669                         for (k = 0; k < chunks[i].mirror_count; k++) {
11670                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
11671                                         valid_id[valid_count] = mirror_ids[j];
11672                                         valid_count++;
11673                                         break;
11674                                 }
11675                         }
11676                 }
11677
11678                 memcpy(chunks[i].mirror_id, valid_id,
11679                        sizeof(__u16) * valid_count);
11680                 chunks[i].mirror_count = valid_count;
11681         }
11682 }
11683
11684 /**
11685  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
11686  * @layout:      Mirror component list.
11687  * @chunks:      Array of chunks.
11688  * @chunks_size: Array size of @chunks.
11689  *
11690  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
11691  * to find out chunk segments and store them in @chunks array.
11692  *
11693  * The @mirror_id array in each element of @chunks will store the valid
11694  * mirror ids that cover the chunk. If a mirror component covering the
11695  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
11696  * will not be stored into the @mirror_id array, and the chunk for that
11697  * mirror will not be verified.
11698  *
11699  * The @mirror_count in each element of @chunks will store the number of
11700  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
11701  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
11702  * indicates the chunk is valid in only one mirror. In both cases, the
11703  * chunk will not be verified.
11704  *
11705  * Here is an example:
11706  *
11707  *  0      1M     2M     3M     4M           EOF
11708  *  +------+-------------+--------------------+
11709  *  |      |             |      S             |       mirror1
11710  *  +------+------+------+------+-------------+
11711  *  |             |   S  |   S  |             |       mirror2
11712  *  +-------------+------+------+-------------+
11713  *
11714  * prepared @chunks array will contain 5 elements:
11715  * (([0, 1M), [1, 2], 2),
11716  *  ([1M, 2M), [1, 2], 2),
11717  *  ([2M, 3M), [1], 1),
11718  *  ([3M, 4M], [], 0),
11719  *  ([4M, EOF), [2], 1))
11720  *
11721  * Return: the actual array size of @chunks on success
11722  *         or a negative error code on failure.
11723  */
11724 static inline
11725 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
11726                              struct verify_chunk *chunks,
11727                              size_t chunks_size)
11728 {
11729         uint64_t start;
11730         uint64_t end;
11731         uint32_t mirror_id;
11732         uint32_t flags;
11733         int idx = 0;
11734         int i = 0;
11735         int rc = 0;
11736
11737         memset(chunks, 0, sizeof(*chunks) * chunks_size);
11738
11739         while (1) {
11740                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
11741                 if (rc < 0) {
11742                         fprintf(stderr,
11743                                 "%s: move to the first layout component: %s.\n",
11744                                 progname, strerror(errno));
11745                         goto error;
11746                 }
11747
11748                 i = 0;
11749                 rc = 0;
11750                 chunks[idx].chunk.e_end = LUSTRE_EOF;
11751                 while (rc == 0) {
11752                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
11753                         if (rc < 0) {
11754                                 fprintf(stderr,
11755                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
11756                                         progname, strerror(errno));
11757                                 goto error;
11758                         }
11759
11760                         if (start > chunks[idx].chunk.e_start ||
11761                             end <= chunks[idx].chunk.e_start)
11762                                 goto next;
11763
11764                         if (end < chunks[idx].chunk.e_end)
11765                                 chunks[idx].chunk.e_end = end;
11766
11767                         rc = llapi_layout_comp_flags_get(layout, &flags);
11768                         if (rc < 0) {
11769                                 fprintf(stderr,
11770                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
11771                                         progname, strerror(errno));
11772                                 goto error;
11773                         }
11774
11775                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
11776                                 goto next;
11777
11778                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
11779                         if (rc < 0) {
11780                                 fprintf(stderr,
11781                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
11782                                         progname, strerror(errno));
11783                                 goto error;
11784                         }
11785
11786                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
11787                                 fprintf(stderr,
11788                                         "%s: mirror_id array is too small.\n",
11789                                         progname);
11790                                 rc = -EINVAL;
11791                                 goto error;
11792                         }
11793                         chunks[idx].mirror_id[i] = mirror_id;
11794                         i++;
11795
11796 next:
11797                         rc = llapi_layout_comp_use(layout,
11798                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
11799                         if (rc < 0) {
11800                                 fprintf(stderr,
11801                                         "%s: move to the next layout component: %s.\n",
11802                                         progname, strerror(errno));
11803                                 goto error;
11804                         }
11805                 } /* loop through all components */
11806
11807                 chunks[idx].mirror_count = i;
11808
11809                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
11810                         break;
11811
11812                 idx++;
11813                 if (idx >= chunks_size) {
11814                         fprintf(stderr, "%s: chunks array is too small.\n",
11815                                 progname);
11816                         rc = -EINVAL;
11817                         goto error;
11818                 }
11819
11820                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
11821         }
11822
11823 error:
11824         return rc < 0 ? rc : idx + 1;
11825 }
11826
11827 /**
11828  * lfs_mirror_verify_chunk() - Verify a chunk.
11829  * @fd:        File descriptor of the mirrored file.
11830  * @file_size: Size of the mirrored file.
11831  * @chunk:     A chunk and its corresponding valid mirror ids.
11832  * @verbose:   Verbose mode.
11833  *
11834  * This function verifies a @chunk contains exactly the same data
11835  * ammong the mirrors that cover it.
11836  *
11837  * If @verbose is specified, then the function will print where the
11838  * differences are if the data do not match. Otherwise, it will
11839  * just return an error in that case.
11840  *
11841  * Return: 0 on success or a negative error code on failure.
11842  */
11843 static inline
11844 int lfs_mirror_verify_chunk(int fd, size_t file_size,
11845                             struct verify_chunk *chunk, int verbose)
11846 {
11847         const size_t buflen = 4 * 1024 * 1024; /* 4M */
11848         void *buf;
11849         size_t page_size = sysconf(_SC_PAGESIZE);
11850         ssize_t bytes_read;
11851         ssize_t bytes_done;
11852         size_t count;
11853         off_t pos;
11854         unsigned long crc;
11855         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11856         int i;
11857         int rc = 0;
11858
11859         if (file_size == 0)
11860                 return 0;
11861
11862         rc = posix_memalign(&buf, page_size, buflen);
11863         if (rc) /* error code is returned directly */
11864                 return -rc;
11865
11866         if (verbose > 1) {
11867                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11868                         PEXT(&chunk->chunk));
11869                 for (i = 0; i < chunk->mirror_count; i++)
11870                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11871                 fprintf(stdout, "\n");
11872         }
11873
11874         bytes_done = 0;
11875         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
11876         pos = chunk->chunk.e_start;
11877         while (bytes_done < count) {
11878                 /* compute initial CRC-32 checksum */
11879                 crc = crc32(0L, Z_NULL, 0);
11880                 memset(crc_array, 0, sizeof(crc_array));
11881
11882                 bytes_read = 0;
11883                 for (i = 0; i < chunk->mirror_count; i++) {
11884                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
11885                                                        buf, buflen, pos);
11886                         if (bytes_read < 0) {
11887                                 rc = bytes_read;
11888                                 fprintf(stderr,
11889                                         "%s: failed to read data from mirror %u: %s.\n",
11890                                         progname, chunk->mirror_id[i],
11891                                         strerror(-rc));
11892                                 goto error;
11893                         }
11894
11895                         /* compute new CRC-32 checksum */
11896                         crc_array[i] = crc32(crc, buf, bytes_read);
11897                 }
11898
11899                 if (verbose)
11900                         print_checksums(chunk, crc_array, pos, buflen);
11901
11902                 /* compare CRC-32 checksum values */
11903                 for (i = 1; i < chunk->mirror_count; i++) {
11904                         if (crc_array[i] != crc_array[0]) {
11905                                 rc = -EINVAL;
11906
11907                                 fprintf(stderr,
11908                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
11909                                         progname, PEXT(&chunk->chunk),
11910                                         chunk->mirror_id[0],
11911                                         chunk->mirror_id[i]);
11912                         }
11913                 }
11914
11915                 pos += bytes_read;
11916                 bytes_done += bytes_read;
11917         }
11918
11919         if (verbose > 1 && rc == 0) {
11920                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11921                         PEXT(&chunk->chunk));
11922                 for (i = 0; i < chunk->mirror_count; i++)
11923                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11924                 fprintf(stdout, " PASS\n\n");
11925         }
11926
11927 error:
11928         free(buf);
11929         return rc;
11930 }
11931
11932 /**
11933  * lfs_mirror_verify_file() - Verify a mirrored file.
11934  * @fname:      Mirrored file name.
11935  * @mirror_ids: Specified mirror ids to be verified.
11936  * @ids_nr:     Number of specified mirror ids.
11937  * @verbose:    Verbose mode.
11938  *
11939  * This function verifies that each SYNC mirror of a mirrored file
11940  * specified by @fname contains exactly the same data.
11941  *
11942  * If @mirror_ids is specified, then the function will verify the
11943  * mirrors specified by @mirror_ids contain exactly the same data.
11944  *
11945  * If @verbose is specified, then the function will print where the
11946  * differences are if the data do not match. Otherwise, it will
11947  * just return an error in that case.
11948  *
11949  * Return: 0 on success or a negative error code on failure.
11950  */
11951 static inline
11952 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
11953                            int verbose)
11954 {
11955         struct verify_chunk chunks_array[1024] = { };
11956         struct llapi_layout *layout = NULL;
11957         struct stat stbuf;
11958         uint32_t flr_state;
11959         int fd;
11960         int chunk_count = 0;
11961         int idx = 0;
11962         int rc = 0;
11963         int rc1 = 0;
11964         int rc2 = 0;
11965
11966         if (stat(fname, &stbuf) < 0) {
11967                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
11968                         progname, fname, strerror(errno));
11969                 rc = -errno;
11970                 goto error;
11971         }
11972
11973         if (!S_ISREG(stbuf.st_mode)) {
11974                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
11975                         progname, fname);
11976                 rc = -EINVAL;
11977                 goto error;
11978         }
11979
11980         if (stbuf.st_size == 0) {
11981                 if (verbose)
11982                         fprintf(stdout, "%s: '%s' file size is 0.\n",
11983                                 progname, fname);
11984                 rc = 0;
11985                 goto error;
11986         }
11987
11988         /* Allow mirror verify even without the key on encrypted files */
11989         fd = open(fname, O_DIRECT | O_RDONLY | O_FILE_ENC);
11990         if (fd < 0) {
11991                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
11992                         progname, fname, strerror(errno));
11993                 rc = -errno;
11994                 goto error;
11995         }
11996
11997         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
11998         if (rc < 0) {
11999                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
12000                         progname, fname, strerror(errno));
12001                 goto close_fd;
12002         }
12003
12004         layout = llapi_layout_get_by_fd(fd, 0);
12005         if (!layout) {
12006                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
12007                         progname, fname, strerror(errno));
12008                 rc = -errno;
12009                 llapi_lease_release(fd);
12010                 goto close_fd;
12011         }
12012
12013         rc = llapi_layout_flags_get(layout, &flr_state);
12014         if (rc < 0) {
12015                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
12016                         progname, fname, strerror(errno));
12017                 rc = -errno;
12018                 goto free_layout;
12019         }
12020
12021         flr_state &= LCM_FL_FLR_MASK;
12022         switch (flr_state) {
12023         case LCM_FL_NONE:
12024                 rc = -EINVAL;
12025                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
12026                         progname, fname, llapi_layout_flags_string(flr_state));
12027                 goto free_layout;
12028         default:
12029                 break;
12030         }
12031
12032         /* find out mirror chunks to be verified */
12033         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
12034                                                ARRAY_SIZE(chunks_array));
12035         if (chunk_count < 0) {
12036                 rc = chunk_count;
12037                 goto free_layout;
12038         }
12039
12040         if (ids_nr > 0)
12041                 /* filter specified mirror ids */
12042                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
12043
12044         if (verbose > 2)
12045                 print_chunks(fname, chunks_array, chunk_count);
12046
12047         for (idx = 0; idx < chunk_count; idx++) {
12048                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
12049                         if (verbose)
12050                                 fprintf(stdout,
12051                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
12052                                         progname, fname,
12053                                         PEXT(&chunks_array[idx].chunk),
12054                                         (unsigned long long)stbuf.st_size);
12055                         break;
12056                 }
12057
12058                 if (chunks_array[idx].mirror_count == 0) {
12059                         fprintf(stderr,
12060                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
12061                                 progname, fname,
12062                                 PEXT(&chunks_array[idx].chunk));
12063                         if (verbose) {
12064                                 fprintf(stderr, "skipped\n");
12065                                 continue;
12066                         }
12067                         rc = -EINVAL;
12068                         fprintf(stderr, "failed\n");
12069                         goto free_layout;
12070                 }
12071
12072                 if (chunks_array[idx].mirror_count == 1) {
12073                         if (verbose)
12074                                 fprintf(stdout,
12075                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
12076                                         progname, fname,
12077                                         PEXT(&chunks_array[idx].chunk),
12078                                         chunks_array[idx].mirror_id[0]);
12079                         continue;
12080                 }
12081
12082                 rc = llapi_lease_check(fd);
12083                 if (rc != LL_LEASE_RDLCK) {
12084                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
12085                                 progname, fname);
12086                         goto free_layout;
12087                 }
12088
12089                 /* verify one chunk */
12090                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
12091                                               &chunks_array[idx], verbose);
12092                 if (rc1 < 0) {
12093                         rc2 = rc1;
12094                         if (!verbose) {
12095                                 rc = rc1;
12096                                 goto free_layout;
12097                         }
12098                 }
12099         }
12100
12101         if (rc2 < 0)
12102                 rc = rc2;
12103
12104 free_layout:
12105         llapi_layout_free(layout);
12106         llapi_lease_release(fd);
12107 close_fd:
12108         close(fd);
12109 error:
12110         return rc;
12111 }
12112
12113 /**
12114  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
12115  * @argc: The count of lfs mirror verify command line arguments.
12116  * @argv: Array of strings for lfs mirror verify command line arguments.
12117  *
12118  * This function parses lfs mirror verify command and verifies the
12119  * specified mirrored file(s).
12120  *
12121  * Return: 0 on success or a negative error code on failure.
12122  */
12123 static inline int lfs_mirror_verify(int argc, char **argv)
12124 {
12125         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
12126         int ids_nr = 0;
12127         int c;
12128         int verbose = 0;
12129         int rc = 0;
12130         int rc1 = 0;
12131         char cmd[PATH_MAX];
12132
12133         struct option long_opts[] = {
12134         { .val = 'h',   .name = "help",         .has_arg = no_argument },
12135         { .val = 'o',   .name = "only",         .has_arg = required_argument },
12136         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
12137         { .name = NULL } };
12138
12139         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12140         progname = cmd;
12141         while ((c = getopt_long(argc, argv, "ho:v", long_opts, NULL)) >= 0) {
12142                 switch (c) {
12143                 case 'o':
12144                         rc = parse_mirror_ids(mirror_ids,
12145                                               ARRAY_SIZE(mirror_ids),
12146                                               optarg);
12147                         if (rc < 0) {
12148                                 fprintf(stderr,
12149                                         "%s: bad mirror ids '%s'.\n",
12150                                         progname, optarg);
12151                                 goto error;
12152                         }
12153                         ids_nr = rc;
12154                         if (ids_nr < 2) {
12155                                 fprintf(stderr,
12156                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
12157                                         progname);
12158                                 rc = CMD_HELP;
12159                                 goto error;
12160                         }
12161                         break;
12162                 case 'v':
12163                         verbose++;
12164                         break;
12165                 default:
12166                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12167                                 progname, argv[optind - 1]);
12168                         fallthrough;
12169                 case 'h':
12170                         rc = CMD_HELP;
12171                         goto error;
12172                 }
12173         }
12174
12175         if (argc == optind) {
12176                 fprintf(stderr, "%s: no file name given.\n", progname);
12177                 rc = CMD_HELP;
12178                 goto error;
12179         }
12180
12181         if (ids_nr > 0 && argc > optind + 1) {
12182                 fprintf(stderr,
12183                         "%s: '--only' cannot be used upon multiple files.\n",
12184                         progname);
12185                 rc = CMD_HELP;
12186                 goto error;
12187         }
12188
12189         if (ids_nr > 0) {
12190                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
12191                 if (rc < 0)
12192                         goto error;
12193         }
12194
12195         rc = 0;
12196         for (; optind < argc; optind++) {
12197                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
12198                                              verbose);
12199                 if (rc1 < 0)
12200                         rc = rc1;
12201         }
12202 error:
12203         return rc;
12204 }
12205
12206 /**
12207  * lfs_mirror() - Parse and execute lfs mirror commands.
12208  * @argc: The count of lfs mirror command line arguments.
12209  * @argv: Array of strings for lfs mirror command line arguments.
12210  *
12211  * This function parses lfs mirror commands and performs the
12212  * corresponding functions specified in mirror_cmdlist[].
12213  *
12214  * Return: 0 on success or an error code on failure.
12215  */
12216 static int lfs_mirror(int argc, char **argv)
12217 {
12218         char cmd[PATH_MAX];
12219         int rc = 0;
12220
12221         setlinebuf(stdout);
12222
12223         Parser_init("lfs-mirror > ", mirror_cmdlist);
12224
12225         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12226         progname = cmd;
12227         program_invocation_short_name = cmd;
12228         if (argc > 1)
12229                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
12230         else
12231                 rc = Parser_commands();
12232
12233         return rc < 0 ? -rc : rc;
12234 }
12235
12236 static void lustre_som_swab(struct lustre_som_attrs *attrs)
12237 {
12238 #if __BYTE_ORDER == __BIG_ENDIAN
12239         __swab16s(&attrs->lsa_valid);
12240         __swab64s(&attrs->lsa_size);
12241         __swab64s(&attrs->lsa_blocks);
12242 #endif
12243 }
12244
12245 enum lfs_som_type {
12246         LFS_SOM_SIZE = 0x1,
12247         LFS_SOM_BLOCKS = 0x2,
12248         LFS_SOM_FLAGS = 0x4,
12249         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
12250                            LFS_SOM_FLAGS,
12251 };
12252
12253 static int lfs_getsom(int argc, char **argv)
12254 {
12255         const char *path;
12256         struct lustre_som_attrs *attrs;
12257         char buf[sizeof(*attrs) + 64];
12258         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
12259         int rc = 0, c;
12260
12261         while ((c = getopt(argc, argv, "bfhs")) != -1) {
12262                 switch (c) {
12263                 case 'b':
12264                         type = LFS_SOM_BLOCKS;
12265                         break;
12266                 case 'f':
12267                         type = LFS_SOM_FLAGS;
12268                         break;
12269                 case 's':
12270                         type = LFS_SOM_SIZE;
12271                         break;
12272                 default:
12273                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12274                                 progname, argv[optind - 1]);
12275                         fallthrough;
12276                 case 'h':
12277                         return CMD_HELP;
12278                 }
12279         }
12280
12281         argc -= optind;
12282         argv += optind;
12283
12284         if (argc != 1) {
12285                 fprintf(stderr, "%s: %s\n",
12286                         progname, argc == 0 ? "miss file target" :
12287                         "input more than 2 files");
12288                 return CMD_HELP;
12289         }
12290
12291         path = argv[0];
12292         attrs = (void *)buf;
12293         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
12294         if (rc < 0) {
12295                 rc = -errno;
12296                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
12297                         argv[0], strerror(errno), errno);
12298                 return rc;
12299         }
12300
12301         lustre_som_swab(attrs);
12302
12303         switch (type) {
12304         case LFS_SOM_ATTR_ALL:
12305                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
12306                        path, (unsigned long long)attrs->lsa_size,
12307                        (unsigned long long)attrs->lsa_blocks,
12308                        attrs->lsa_valid);
12309                 break;
12310         case LFS_SOM_SIZE:
12311                 printf("%llu\n", (unsigned long long)attrs->lsa_size);
12312                 break;
12313         case LFS_SOM_BLOCKS:
12314                 printf("%llu\n", (unsigned long long)attrs->lsa_blocks);
12315                 break;
12316         case LFS_SOM_FLAGS:
12317                 printf("%x\n", attrs->lsa_valid);
12318                 break;
12319         default:
12320                 fprintf(stderr, "%s: unknown option\n", progname);
12321                 return CMD_HELP;
12322         }
12323
12324         return 0;
12325 }
12326
12327 /**
12328  * lfs_mirror_list_commands() - List lfs mirror commands.
12329  * @argc: The count of command line arguments.
12330  * @argv: Array of strings for command line arguments.
12331  *
12332  * This function lists lfs mirror commands defined in mirror_cmdlist[].
12333  *
12334  * Return: 0 on success.
12335  */
12336 static int lfs_mirror_list_commands(int argc, char **argv)
12337 {
12338         char buffer[81] = "";
12339
12340         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
12341                              NULL, 0, 4);
12342
12343         return 0;
12344 }
12345
12346 static int lfs_pcc_attach(int argc, char **argv)
12347 {
12348         struct option long_opts[] = {
12349         { .val = 'h',   .name = "help", .has_arg = no_argument },
12350         { .val = 'i',   .name = "id",   .has_arg = required_argument },
12351         { .name = NULL } };
12352         int c;
12353         int rc = 0;
12354         __u32 archive_id = 0;
12355         const char *path;
12356         char *end;
12357         char fullpath[PATH_MAX];
12358         enum lu_pcc_type type = LU_PCC_READWRITE;
12359
12360         optind = 0;
12361         while ((c = getopt_long(argc, argv, "hi:",
12362                                 long_opts, NULL)) != -1) {
12363                 switch (c) {
12364                 case 'i':
12365                         errno = 0;
12366                         archive_id = strtoul(optarg, &end, 0);
12367                         if (errno != 0 || *end != '\0' ||
12368                             archive_id == 0 || archive_id > UINT32_MAX) {
12369                                 fprintf(stderr,
12370                                         "error: %s: bad archive ID '%s'\n",
12371                                         progname, optarg);
12372                                 return CMD_HELP;
12373                         }
12374                         break;
12375                 default:
12376                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12377                                 progname, argv[optind - 1]);
12378                         fallthrough;
12379                 case 'h':
12380                         return CMD_HELP;
12381                 }
12382         }
12383
12384         if (archive_id == 0) {
12385                 fprintf(stderr, "%s: must specify attach ID\n", argv[0]);
12386                 return CMD_HELP;
12387         }
12388
12389         if (argc <= optind) {
12390                 fprintf(stderr, "%s: must specify one or more file names\n",
12391                         argv[0]);
12392                 return CMD_HELP;
12393         }
12394
12395         while (optind < argc) {
12396                 int rc2;
12397
12398                 path = argv[optind++];
12399                 if (!realpath(path, fullpath)) {
12400                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12401                                 argv[0], path, strerror(errno));
12402                         if (rc == 0)
12403                                 rc = -EINVAL;
12404                         continue;
12405                 }
12406
12407                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
12408                 if (rc2 < 0) {
12409                         fprintf(stderr,
12410                                 "%s: cannot attach '%s' to PCC with archive ID '%u': %s\n",
12411                                 argv[0], path, archive_id, strerror(-rc2));
12412                         if (rc == 0)
12413                                 rc = rc2;
12414                 }
12415         }
12416         return rc;
12417 }
12418
12419 static int lfs_pcc_attach_fid(int argc, char **argv)
12420 {
12421         struct option long_opts[] = {
12422         { .val = 'h',   .name = "help", .has_arg = no_argument },
12423         { .val = 'i',   .name = "id",   .has_arg = required_argument },
12424         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
12425         { .name = NULL } };
12426         int c;
12427         int rc = 0;
12428         __u32 archive_id = 0;
12429         char *end;
12430         const char *mntpath = NULL;
12431         const char *fidstr;
12432         enum lu_pcc_type type = LU_PCC_READWRITE;
12433
12434         optind = 0;
12435         while ((c = getopt_long(argc, argv, "hi:m:",
12436                                 long_opts, NULL)) != -1) {
12437                 switch (c) {
12438                 case 'i':
12439                         errno = 0;
12440                         archive_id = strtoul(optarg, &end, 0);
12441                         if (errno != 0 || *end != '\0' ||
12442                             archive_id > UINT32_MAX) {
12443                                 fprintf(stderr,
12444                                         "error: %s: bad archive ID '%s'\n",
12445                                         argv[0], optarg);
12446                                 return CMD_HELP;
12447                         }
12448                         break;
12449                 case 'm':
12450                         mntpath = optarg;
12451                         break;
12452                 default:
12453                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12454                                 progname, argv[optind - 1]);
12455                         fallthrough;
12456                 case 'h':
12457                         return CMD_HELP;
12458                 }
12459         }
12460
12461         if (archive_id == 0) {
12462                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
12463                 return CMD_HELP;
12464         }
12465
12466         if (!mntpath) {
12467                 fprintf(stderr, "%s: must specify Lustre mount point\n",
12468                         argv[0]);
12469                 return CMD_HELP;
12470         }
12471
12472         if (argc <= optind) {
12473                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
12474                 return CMD_HELP;
12475         }
12476
12477         while (optind < argc) {
12478                 int rc2;
12479
12480                 fidstr = argv[optind++];
12481
12482                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
12483                                                archive_id, type);
12484                 if (rc2 < 0) {
12485                         fprintf(stderr,
12486                                 "%s: cannot attach '%s' on '%s' to PCC with archive ID '%u': %s\n",
12487                                 argv[0], fidstr, mntpath, archive_id,
12488                                 strerror(rc2));
12489                 }
12490                 if (rc == 0 && rc2 < 0)
12491                         rc = rc2;
12492         }
12493         return rc;
12494 }
12495
12496 static int lfs_pcc_detach(int argc, char **argv)
12497 {
12498         struct option long_opts[] = {
12499         { .val = 'h',   .name = "help", .has_arg = no_argument },
12500         { .val = 'k',   .name = "keep", .has_arg = no_argument },
12501         { .name = NULL } };
12502         int c;
12503         int rc = 0;
12504         const char *path;
12505         char fullpath[PATH_MAX];
12506         __u32 detach_opt = PCC_DETACH_OPT_UNCACHE;
12507
12508         optind = 0;
12509         while ((c = getopt_long(argc, argv, "hk",
12510                                 long_opts, NULL)) != -1) {
12511                 switch (c) {
12512                 case 'k':
12513                         detach_opt = PCC_DETACH_OPT_NONE;
12514                         break;
12515                 default:
12516                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12517                                 progname, argv[optind - 1]);
12518                         fallthrough;
12519                 case 'h':
12520                         return CMD_HELP;
12521                 }
12522         }
12523
12524         while (optind < argc) {
12525                 int rc2;
12526
12527                 path = argv[optind++];
12528                 if (!realpath(path, fullpath)) {
12529                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12530                                 argv[0], path, strerror(errno));
12531                         if (rc == 0)
12532                                 rc = -EINVAL;
12533                         continue;
12534                 }
12535
12536                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
12537                 if (rc2 < 0) {
12538                         rc2 = -errno;
12539                         fprintf(stderr,
12540                                 "%s: cannot detach '%s' from PCC: %s\n",
12541                                 argv[0], path, strerror(errno));
12542                         if (rc == 0)
12543                                 rc = rc2;
12544                 }
12545         }
12546         return rc;
12547 }
12548
12549 static int lfs_pcc_detach_fid(int argc, char **argv)
12550 {
12551         struct option long_opts[] = {
12552         { .val = 'h',   .name = "help", .has_arg = no_argument },
12553         { .val = 'k',   .name = "keep", .has_arg = no_argument },
12554         { .name = NULL } };
12555         int c;
12556         int rc = 0;
12557         const char *fid;
12558         const char *mntpath;
12559         __u32 detach_opt = PCC_DETACH_OPT_UNCACHE;
12560
12561         optind = 0;
12562         while ((c = getopt_long(argc, argv, "hk",
12563                                 long_opts, NULL)) != -1) {
12564                 switch (c) {
12565                 case 'k':
12566                         detach_opt = PCC_DETACH_OPT_NONE;
12567                         break;
12568                 default:
12569                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12570                                 progname, argv[optind - 1]);
12571                         fallthrough;
12572                 case 'h':
12573                         return CMD_HELP;
12574                 }
12575         }
12576
12577         mntpath = argv[optind++];
12578
12579         while (optind < argc) {
12580                 int rc2;
12581
12582                 fid = argv[optind++];
12583
12584                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
12585                 if (rc2 < 0) {
12586                         fprintf(stderr,
12587                                 "%s: cannot detach '%s' on '%s' from PCC: %s\n",
12588                                 argv[0], fid, mntpath, strerror(-rc2));
12589                         if (rc == 0)
12590                                 rc = rc2;
12591                 }
12592         }
12593         return rc;
12594 }
12595
12596 static int lfs_pcc_state(int argc, char **argv)
12597 {
12598         int rc = 0;
12599         const char *path;
12600         char fullpath[PATH_MAX];
12601         struct lu_pcc_state state;
12602
12603         optind = 1;
12604
12605         if (argc <= 1) {
12606                 fprintf(stderr, "%s: must specify one or more file names\n",
12607                         progname);
12608                 return CMD_HELP;
12609         }
12610
12611         while (optind < argc) {
12612                 int rc2;
12613
12614                 path = argv[optind++];
12615                 if (!realpath(path, fullpath)) {
12616                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12617                                 argv[0], path, strerror(errno));
12618                         if (rc == 0)
12619                                 rc = -EINVAL;
12620                         continue;
12621                 }
12622
12623                 rc2 = llapi_pcc_state_get(fullpath, &state);
12624                 if (rc2 < 0) {
12625                         if (rc == 0)
12626                                 rc = rc2;
12627                         fprintf(stderr,
12628                                 "%s: cannot get PCC state of '%s': %s\n",
12629                                 argv[0], path, strerror(-rc2));
12630                         continue;
12631                 }
12632
12633                 printf("file: %s", path);
12634                 printf(", type: %s", pcc_type2string(state.pccs_type));
12635                 if (state.pccs_type == LU_PCC_NONE &&
12636                     state.pccs_open_count == 0) {
12637                         printf("\n");
12638                         continue;
12639                 }
12640
12641                 printf(", PCC file: %s", state.pccs_path);
12642                 printf(", user number: %u", state.pccs_open_count);
12643                 printf(", flags: %x", state.pccs_flags);
12644                 printf("\n");
12645         }
12646         return rc;
12647 }
12648
12649 /**
12650  * lfs_pcc_list_commands() - List lfs pcc commands.
12651  * @argc: The count of command line arguments.
12652  * @argv: Array of strings for command line arguments.
12653  *
12654  * This function lists lfs pcc commands defined in pcc_cmdlist[].
12655  *
12656  * Return: 0 on success.
12657  */
12658 static int lfs_pcc_list_commands(int argc, char **argv)
12659 {
12660         char buffer[81] = "";
12661
12662         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
12663                              NULL, 0, 4);
12664
12665         return 0;
12666 }
12667
12668 /**
12669  * lfs_pcc() - Parse and execute lfs pcc commands.
12670  * @argc: The count of lfs pcc command line arguments.
12671  * @argv: Array of strings for lfs pcc command line arguments.
12672  *
12673  * This function parses lfs pcc commands and performs the
12674  * corresponding functions specified in pcc_cmdlist[].
12675  *
12676  * Return: 0 on success or an error code on failure.
12677  */
12678 static int lfs_pcc(int argc, char **argv)
12679 {
12680         char cmd[PATH_MAX];
12681         int rc = 0;
12682
12683         setlinebuf(stdout);
12684
12685         Parser_init("lfs-pcc > ", pcc_cmdlist);
12686
12687         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12688         progname = cmd;
12689         program_invocation_short_name = cmd;
12690         if (argc > 1)
12691                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
12692         else
12693                 rc = Parser_commands();
12694
12695         return rc < 0 ? -rc : rc;
12696 }
12697
12698 static int lfs_list_commands(int argc, char **argv)
12699 {
12700         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
12701
12702         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
12703
12704         return 0;
12705 }
12706
12707 int main(int argc, char **argv)
12708 {
12709         int rc;
12710
12711         /* Ensure that liblustreapi constructor has run */
12712         if (!llapi_liblustreapi_initialized())
12713                 fprintf(stderr, "liblustreapi was not properly initialized\n");
12714
12715         setlinebuf(stdout);
12716         opterr = 0;
12717
12718         Parser_init("lfs > ", cmdlist);
12719
12720         progname = program_invocation_short_name; /* Used in error messages */
12721         if (argc > 1) {
12722                 llapi_set_command_name(argv[1]);
12723                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
12724                 llapi_clear_command_name();
12725         } else {
12726                 rc = Parser_commands();
12727         }
12728
12729         return rc < 0 ? -rc : rc;
12730 }
12731
12732 #ifdef _LUSTRE_IDL_H_
12733 /* Everything we need here should be included by lustreapi.h. */
12734 # error "lfs should not depend on lustre_idl.h"
12735 #endif /* _LUSTRE_IDL_H_ */