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 && strlen(hashtype) == 1 &&
 596             (type_num > 0 && type_num < LMV_HASH_TYPE_MAX))
 597                 return type_num;
 598         /* string hash type */
 599         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 600                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 601                         return i;
 602
 603         return 0;
 604 }
 605
 606 static uint32_t check_foreign_type_name(const char *foreign_type_name)
 607 {
 608         uint32_t i;
 609
 610         for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
 611                 if (!lu_foreign_types[i].lft_name)
 612                         break;
 613                 if (strcmp(foreign_type_name,
 614                            lu_foreign_types[i].lft_name) == 0)
 615                         return lu_foreign_types[i].lft_type;
 616         }
 617
 618         return LU_FOREIGN_TYPE_UNKNOWN;
 619 }
 620
 621 static const char *error_loc = "syserror";
 622
 623 static int
 624 migrate_open_files(const char *name, __u64 migration_flags,
 625                    const struct llapi_stripe_param *param,
 626                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 627 {
 628         int                      fd = -1;
 629         int                      fdv = -1;
 630         int                      rflags;
 631         int                      mdt_index;
 632         int                      random_value;
 633         char                     parent[PATH_MAX];
 634         char                     volatile_file[PATH_MAX];
 635         char                    *ptr;
 636         int                      rc;
 637         struct stat              st;
 638         struct stat              stv;
 639
 640         if (!param && !layout) {
 641                 error_loc = "layout information";
 642                 return -EINVAL;
 643         }
 644
 645         /* search for file directory pathname */
 646         if (strlen(name) > sizeof(parent) - 1) {
 647                 error_loc = "source file name";
 648                 return -ERANGE;
 649         }
 650
 651         strncpy(parent, name, sizeof(parent));
 652         ptr = strrchr(parent, '/');
 653         if (!ptr) {
 654                 if (!getcwd(parent, sizeof(parent))) {
 655                         error_loc = "getcwd";
 656                         return -errno;
 657                 }
 658         } else {
 659                 if (ptr == parent) /* leading '/' */
 660                         ptr = parent + 1;
 661                 *ptr = '\0';
 662         }
 663
 664         /* even if the file is only read, WR mode is nedeed to allow
 665          * layout swap on fd
 666          */
 667         /* Allow migrating even without the key on encrypted files */
 668         rflags = O_RDWR | O_NOATIME | O_FILE_ENC;
 669         if (!(migration_flags & LLAPI_MIGRATION_NONDIRECT))
 670                 rflags |= O_DIRECT;
 671 source_open:
 672         fd = open(name, rflags);
 673         if (fd < 0) {
 674                 /* If encrypted file without the key,
 675                  * retry mirror extend in O_DIRECT.
 676                  */
 677                 if (errno == ENOKEY && !(rflags & O_DIRECT) &&
 678                     migration_flags & LLAPI_MIGRATION_MIRROR) {
 679                         rflags |= O_DIRECT;
 680                         goto source_open;
 681                 }
 682                 rc = -errno;
 683                 error_loc = "cannot open source file";
 684                 return rc;
 685         }
 686
 687         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 688         if (rc < 0) {
 689                 error_loc = "cannot get MDT index";
 690                 goto out;
 691         }
 692
 693         do {
 694                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW |
 695                         /* Allow migrating without the key on encrypted files */
 696                         O_FILE_ENC;
 697                 mode_t open_mode = S_IRUSR | S_IWUSR;
 698
 699                 if (rflags & O_DIRECT)
 700                         open_flags |= O_DIRECT;
 701                 random_value = random();
 702                 rc = snprintf(volatile_file, sizeof(volatile_file),
 703                               "%s/%s:%.4X:%.4X:fd=%.2d", parent,
 704                               LUSTRE_VOLATILE_HDR, mdt_index,
 705                               random_value, fd);
 706                 if (rc >= sizeof(volatile_file)) {
 707                         rc = -ENAMETOOLONG;
 708                         break;
 709                 }
 710
 711                 /* create, open a volatile file, use caching (ie no directio) */
 712                 if (layout) {
 713                         /* Returns -1 and sets errno on error: */
 714                         fdv = llapi_layout_file_open(volatile_file, open_flags,
 715                                                      open_mode, layout);
 716                         if (fdv < 0)
 717                                 fdv = -errno;
 718                 } else {
 719                         /* Does the right thing on error: */
 720                         fdv = llapi_file_open_param(volatile_file, open_flags,
 721                                                     open_mode, param);
 722                 }
 723         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 724
 725         if (rc < 0) {
 726                 error_loc = "cannot create volatile file";
 727                 goto out;
 728         }
 729
 730         /*
 731          * In case the MDT does not support creation of volatile files
 732          * we should try to unlink it.
 733          */
 734         (void)unlink(volatile_file);
 735
 736         /*
 737          * Not-owner (root?) special case.
 738          * Need to set owner/group of volatile file like original.
 739          * This will allow to pass related check during layout_swap.
 740          */
 741         rc = fstat(fd, &st);
 742         if (rc != 0) {
 743                 rc = -errno;
 744                 error_loc = "cannot stat source file";
 745                 goto out;
 746         }
 747
 748         rc = fstat(fdv, &stv);
 749         if (rc != 0) {
 750                 rc = -errno;
 751                 error_loc = "cannot stat volatile";
 752                 goto out;
 753         }
 754
 755         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 756                 rc = fchown(fdv, st.st_uid, st.st_gid);
 757                 if (rc != 0) {
 758                         rc = -errno;
 759                         error_loc = "cannot change ownwership of volatile";
 760                         goto out;
 761                 }
 762         }
 763
 764 out:
 765         if (rc < 0) {
 766                 if (fd > 0)
 767                         close(fd);
 768                 if (fdv > 0)
 769                         close(fdv);
 770         } else {
 771                 *fd_src = fd;
 772                 *fd_tgt = fdv;
 773                 error_loc = NULL;
 774         }
 775         return rc;
 776 }
 777
 778 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 779 {
 780         struct llapi_layout *layout;
 781         size_t buf_size = 4 * 1024 * 1024;
 782         void *buf = NULL;
 783         off_t pos = 0;
 784         off_t data_end = 0;
 785         size_t page_size = sysconf(_SC_PAGESIZE);
 786         bool sparse;
 787         int rc;
 788
 789         layout = llapi_layout_get_by_fd(fd_src, 0);
 790         if (layout) {
 791                 uint64_t stripe_size;
 792
 793                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 794                 if (rc == 0)
 795                         buf_size = stripe_size;
 796
 797                 llapi_layout_free(layout);
 798         }
 799
 800         /* Use a page-aligned buffer for direct I/O */
 801         rc = posix_memalign(&buf, page_size, buf_size);
 802         if (rc != 0)
 803                 return -rc;
 804
 805         sparse = llapi_file_is_sparse(fd_src);
 806         if (sparse) {
 807                 rc = ftruncate(fd_dst, pos);
 808                 if (rc < 0) {
 809                         rc = -errno;
 810                         return rc;
 811                 }
 812         }
 813
 814         while (1) {
 815                 off_t data_off;
 816                 size_t to_read, to_write;
 817                 ssize_t rsize;
 818
 819                 if (sparse && pos >= data_end) {
 820                         size_t data_size;
 821
 822                         data_off = llapi_data_seek(fd_src, pos, &data_size);
 823                         if (data_off < 0) {
 824                                 /* Non-fatal, switch to full copy */
 825                                 sparse = false;
 826                                 continue;
 827                         }
 828                         /* hole at the end of file, truncate up to it */
 829                         if (!data_size) {
 830                                 rc = ftruncate(fd_dst, data_off);
 831                                 if (rc < 0)
 832                                         goto out;
 833                         }
 834                         pos = data_off & ~(page_size - 1);
 835                         data_end = data_off + data_size;
 836                         to_read = ((data_end - pos - 1) | (page_size - 1)) + 1;
 837                         to_read = MIN(to_read, buf_size);
 838                 } else {
 839                         to_read = buf_size;
 840                 }
 841
 842                 if (check_file) {
 843                         rc = check_file(fd_src);
 844                         if (rc < 0)
 845                                 goto out;
 846                 }
 847
 848                 rsize = pread(fd_src, buf, to_read, pos);
 849                 if (rsize < 0) {
 850                         rc = -errno;
 851                         goto out;
 852                 }
 853                 /* EOF */
 854                 if (rsize == 0)
 855                         break;
 856
 857                 to_write = rsize;
 858                 while (to_write > 0) {
 859                         ssize_t written;
 860
 861                         written = pwrite(fd_dst, buf, to_write, pos);
 862                         if (written < 0) {
 863                                 rc = -errno;
 864                                 goto out;
 865                         }
 866                         pos += written;
 867                         to_write -= written;
 868                 }
 869                 if (rc || rsize < to_read)
 870                         break;
 871         }
 872
 873         rc = fsync(fd_dst);
 874         if (rc < 0)
 875                 rc = -errno;
 876 out:
 877         /* Try to avoid page cache pollution after migration. */
 878         (void)posix_fadvise(fd_src, 0, 0, POSIX_FADV_DONTNEED);
 879         (void)posix_fadvise(fd_dst, 0, 0, POSIX_FADV_DONTNEED);
 880
 881         free(buf);
 882         return rc;
 883 }
 884
 885 static int migrate_set_timestamps(int fd, const struct stat *st)
 886 {
 887         struct timeval tv[2] = {
 888                 {.tv_sec = st->st_atime},
 889                 {.tv_sec = st->st_mtime}
 890         };
 891
 892         return futimes(fd, tv);
 893 }
 894
 895 static int migrate_block(int fd, int fdv)
 896 {
 897         struct stat st;
 898         __u64   dv1;
 899         int     gid;
 900         int     rc;
 901         int     rc2;
 902
 903         rc = fstat(fd, &st);
 904         if (rc < 0) {
 905                 error_loc = "cannot stat source file";
 906                 return -errno;
 907         }
 908
 909         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 910         if (rc < 0) {
 911                 error_loc = "cannot get dataversion";
 912                 return rc;
 913         }
 914
 915         do
 916                 gid = random();
 917         while (gid == 0);
 918
 919         /*
 920          * The grouplock blocks all concurrent accesses to the file.
 921          * It has to be taken after llapi_get_data_version as it would
 922          * block it too.
 923          */
 924         rc = llapi_group_lock(fd, gid);
 925         if (rc < 0) {
 926                 error_loc = "cannot get group lock";
 927                 return rc;
 928         }
 929
 930         rc = migrate_copy_data(fd, fdv, NULL);
 931         if (rc < 0) {
 932                 error_loc = "data copy failed";
 933                 goto out_unlock;
 934         }
 935
 936         /* Make sure we keep original atime/mtime values */
 937         rc = migrate_set_timestamps(fdv, &st);
 938         if (rc < 0) {
 939                 error_loc = "set target file timestamp failed";
 940                 goto out_unlock;
 941         }
 942
 943         /*
 944          * swap layouts
 945          * for a migration we need to check data version on file did
 946          * not change.
 947          *
 948          * Pass in gid=0 since we already own grouplock.
 949          */
 950         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
 951                                            SWAP_LAYOUTS_CHECK_DV1);
 952         if (rc == -EAGAIN) {
 953                 error_loc = "file changed";
 954                 goto out_unlock;
 955         } else if (rc < 0) {
 956                 error_loc = "cannot swap layout";
 957                 goto out_unlock;
 958         }
 959
 960 out_unlock:
 961         rc2 = llapi_group_unlock(fd, gid);
 962         if (rc2 < 0 && rc == 0) {
 963                 error_loc = "unlock group lock";
 964                 rc = rc2;
 965         }
 966
 967         return rc;
 968 }
 969
 970 /**
 971  * Internal helper for migrate_copy_data(). Check lease and report error if
 972  * need be.
 973  *
 974  * \param[in]  fd           File descriptor on which to check the lease.
 975  *
 976  * \retval 0       Migration can keep on going.
 977  * \retval -errno  Error occurred, abort migration.
 978  */
 979 static int check_lease(int fd)
 980 {
 981         int rc;
 982
 983         rc = llapi_lease_check(fd);
 984         if (rc > 0)
 985                 return 0; /* llapi_check_lease returns > 0 on success. */
 986
 987         return -EBUSY;
 988 }
 989
 990 static int migrate_nonblock(int fd, int fdv)
 991 {
 992         struct stat st;
 993         __u64   dv1;
 994         __u64   dv2;
 995         int     rc;
 996
 997         rc = fstat(fd, &st);
 998         if (rc < 0) {
 999                 error_loc = "cannot stat source file";
1000                 return -errno;
1001         }
1002
1003         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
1004         if (rc < 0) {
1005                 error_loc = "cannot get data version";
1006                 return rc;
1007         }
1008
1009         rc = migrate_copy_data(fd, fdv, check_lease);
1010         if (rc < 0) {
1011                 error_loc = "data copy failed";
1012                 return rc;
1013         }
1014
1015         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
1016         if (rc != 0) {
1017                 error_loc = "cannot get data version";
1018                 return rc;
1019         }
1020
1021         if (dv1 != dv2) {
1022                 rc = -EAGAIN;
1023                 error_loc = "source file changed";
1024                 return rc;
1025         }
1026
1027         /* Make sure we keep original atime/mtime values */
1028         rc = migrate_set_timestamps(fdv, &st);
1029         if (rc < 0) {
1030                 error_loc = "set target file timestamp failed";
1031                 return -errno;
1032         }
1033         return 0;
1034 }
1035
1036 static
1037 int lfs_layout_compid_by_pool(char *fname, const char *pool, int *comp_id)
1038 {
1039         struct pool_to_id_cbdata data = { .pool = pool };
1040         struct llapi_layout *layout = NULL;
1041         int rc;
1042
1043         layout = llapi_layout_get_by_path(fname, 0);
1044         if (!layout) {
1045                 fprintf(stderr,
1046                         "error %s: file '%s' couldn't get layout: rc=%d\n",
1047                         progname, fname, errno);
1048                 rc = -errno;
1049                 goto free_layout;
1050         }
1051         rc = llapi_layout_sanity(layout, false, true);
1052         if (rc < 0) {
1053                 llapi_layout_sanity_perror(errno);
1054                 goto free_layout;
1055         }
1056         rc = llapi_layout_comp_iterate(layout, find_comp_id_by_pool, &data);
1057         if (rc < 0)
1058                 goto free_layout;
1059
1060         *comp_id = data.id;
1061         rc = 0;
1062
1063 free_layout:
1064         if (layout)
1065                 llapi_layout_free(layout);
1066         return rc;
1067 }
1068
1069 static int lfs_component_set(char *fname, int comp_id, const char *pool,
1070                              __u32 flags, __u32 neg_flags)
1071 {
1072         __u32 ids[2];
1073         __u32 flags_array[2];
1074         size_t count = 0;
1075         int rc;
1076
1077         if (!comp_id) {
1078                 if (pool == NULL) {
1079                         fprintf(stderr,
1080                                 "error %s: neither component id nor pool is specified\n",
1081                                 progname);
1082                         return -EINVAL;
1083                 }
1084                 rc = lfs_layout_compid_by_pool(fname, pool, &comp_id);
1085                 if (rc)
1086                         return rc;
1087         }
1088
1089         if (flags) {
1090                 ids[count] = comp_id;
1091                 flags_array[count] = flags;
1092                 ++count;
1093         }
1094
1095         if (neg_flags) {
1096                 if (neg_flags & LCME_FL_STALE) {
1097                         fprintf(stderr,
1098                                 "%s: cannot clear 'stale' flags from component. Please use lfs-mirror-resync(1) instead\n",
1099                                 progname);
1100                         return -EINVAL;
1101                 }
1102
1103                 ids[count] = comp_id;
1104                 flags_array[count] = neg_flags | LCME_FL_NEG;
1105                 ++count;
1106         }
1107
1108         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
1109         if (rc) {
1110                 if (errno == EUCLEAN) {
1111                         rc = -errno;
1112                         fprintf(stderr,
1113                                 "%s: cannot set 'stale' flag on component '%#x' of the last non-stale mirror of '%s'\n",
1114                                 progname, comp_id, fname);
1115                 } else {
1116                         fprintf(stderr,
1117                                 "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
1118                                 progname, comp_id, fname, flags, neg_flags);
1119                 }
1120         }
1121
1122         return rc;
1123 }
1124
1125 static int lfs_component_del(char *fname, __u32 comp_id,
1126                              __u32 flags, __u32 neg_flags)
1127 {
1128         int     rc = 0;
1129
1130         if (flags && neg_flags) {
1131                 fprintf(stderr,
1132                         "%s: cannot specify both positive and negative flags\n",
1133                         progname);
1134                 return -EINVAL;
1135         }
1136
1137         if (!flags && neg_flags)
1138                 flags = neg_flags | LCME_FL_NEG;
1139
1140         if (flags && comp_id) {
1141                 fprintf(stderr,
1142                         "%s: cannot specify component ID and flags at the same time\n",
1143                         progname);
1144                 return -EINVAL;
1145         }
1146
1147         if (!flags && !comp_id) {
1148                 fprintf(stderr,
1149                         "%s: neither flags nor component ID is specified\n",
1150                         progname);
1151                 return -EINVAL;
1152         }
1153
1154         if (flags) {
1155                 if (flags & ~LCME_KNOWN_FLAGS) {
1156                         fprintf(stderr,
1157                                 "%s setstripe: unknown flags %#x\n",
1158                                 progname, flags);
1159                         return -EINVAL;
1160                 }
1161         } else if (comp_id > LCME_ID_MAX) {
1162                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
1163                         progname, comp_id);
1164                 return -EINVAL;
1165         }
1166
1167         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
1168         if (rc)
1169                 fprintf(stderr,
1170                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
1171                         progname, comp_id, fname, strerror(errno));
1172         return rc;
1173 }
1174
1175 static int lfs_component_add(char *fname, struct llapi_layout *layout)
1176 {
1177         int     rc;
1178
1179         if (!layout)
1180                 return -EINVAL;
1181
1182         rc = llapi_layout_file_comp_add(fname, layout);
1183         if (rc)
1184                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1185                         fname, strerror(errno));
1186         return rc;
1187 }
1188
1189 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1190                                 struct llapi_layout *layout)
1191 {
1192         struct stat     st;
1193         int     fd;
1194
1195         if (!layout)
1196                 return -EINVAL;
1197
1198         fd = lstat(fname, &st);
1199         if (fd == 0 && S_ISDIR(st.st_mode))
1200                 open_flags = O_DIRECTORY | O_RDONLY;
1201
1202         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1203         if (fd < 0)
1204                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1205                         S_ISDIR(st.st_mode) ?
1206                                 "set default composite layout for" :
1207                                 "create composite file",
1208                         fname, strerror(errno));
1209         return fd;
1210 }
1211
1212 static int lfs_migrate(char *name, __u64 migration_flags,
1213                        struct llapi_stripe_param *param,
1214                        struct llapi_layout *layout)
1215 {
1216         struct llapi_layout *existing;
1217         uint64_t dom_new, dom_cur;
1218         int fd = -1;
1219         int fdv = -1;
1220         int rc;
1221
1222         rc = migrate_open_files(name, migration_flags, param, layout,
1223                                 &fd, &fdv);
1224         if (rc < 0)
1225                 goto out;
1226
1227         rc = llapi_layout_dom_size(layout, &dom_new);
1228         if (rc) {
1229                 error_loc = "cannot get new layout DoM size";
1230                 goto out;
1231         }
1232         /* special case for migration to DOM layout*/
1233         existing = llapi_layout_get_by_fd(fd, 0);
1234         if (!existing) {
1235                 error_loc = "cannot get existing layout";
1236                 goto out;
1237         }
1238
1239         rc = llapi_layout_dom_size(existing, &dom_cur);
1240         if (rc) {
1241                 error_loc = "cannot get current layout DoM size";
1242                 goto out;
1243         }
1244
1245         /*
1246          * if file has DoM layout already then migration is possible to
1247          * the new layout with the same DoM component via swap layout,
1248          * if new layout used bigger DOM size, then mirroring is used
1249          */
1250         if (dom_new > dom_cur) {
1251                 rc = lfs_migrate_to_dom(fd, fdv, name, migration_flags);
1252                 if (rc)
1253                         error_loc = "cannot migrate to DOM layout";
1254                 goto out_closed;
1255         }
1256
1257         if (!(migration_flags & LLAPI_MIGRATION_NONBLOCK)) {
1258                 /*
1259                  * Blocking mode (forced if servers do not support file lease).
1260                  * It is also the default mode, since we cannot distinguish
1261                  * between a broken lease and a server that does not support
1262                  * atomic swap/close (LU-6785)
1263                  */
1264                 rc = migrate_block(fd, fdv);
1265                 goto out;
1266         }
1267
1268         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1269         if (rc < 0) {
1270                 error_loc = "cannot get lease";
1271                 goto out;
1272         }
1273
1274         rc = migrate_nonblock(fd, fdv);
1275         if (rc < 0) {
1276                 llapi_lease_release(fd);
1277                 goto out;
1278         }
1279
1280         /*
1281          * Atomically put lease, swap layouts and close.
1282          * for a migration we need to check data version on file did
1283          * not change.
1284          */
1285         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1286         if (rc < 0) {
1287                 error_loc = "cannot swap layout";
1288                 goto out;
1289         }
1290
1291 out:
1292         if (fd >= 0)
1293                 close(fd);
1294
1295         if (fdv >= 0)
1296                 close(fdv);
1297 out_closed:
1298         if (rc < 0)
1299                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1300                         progname, name, error_loc, strerror(-rc));
1301         else if (migration_flags & LLAPI_MIGRATION_VERBOSE)
1302                 printf("%s\n", name);
1303
1304         return rc;
1305 }
1306
1307 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1308 {
1309         char *name;
1310         char *dup_string = NULL;
1311         int rc = 0;
1312
1313         *flags = 0;
1314         *neg_flags = 0;
1315
1316         if (!string || !string[0])
1317                 return -EINVAL;
1318
1319         dup_string = strdup(string);
1320         if (!dup_string) {
1321                 llapi_printf(LLAPI_MSG_ERROR,
1322                              "%s: insufficient memory\n",
1323                              progname);
1324                 return -ENOMEM;
1325         }
1326
1327         for (name = strtok(dup_string, ","); name; name = strtok(NULL, ",")) {
1328                 bool found = false;
1329                 int i;
1330
1331                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1332                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1333                         const char *comp_name = comp_flags_table[i].cfn_name;
1334
1335                         if (strcmp(name, comp_name) == 0) {
1336                                 *flags |= comp_flag;
1337                                 found = true;
1338                         } else if (strncmp(name, "^", 1) == 0 &&
1339                                    strcmp(name + 1, comp_name) == 0) {
1340                                 *neg_flags |= comp_flag;
1341                                 found = true;
1342                         }
1343                 }
1344                 if (!found) {
1345                         llapi_printf(LLAPI_MSG_ERROR,
1346                                      "%s: component flag '%s' not supported\n",
1347                                      progname, name);
1348                         rc = -EINVAL;
1349                         goto out_free;
1350                 }
1351         }
1352
1353         if (!*flags && !*neg_flags)
1354                 rc = -EINVAL;
1355
1356         /* don't allow to set and exclude the same flag */
1357         if (*flags & *neg_flags)
1358                 rc = -EINVAL;
1359
1360 out_free:
1361         free(dup_string);
1362         return rc;
1363 }
1364
1365 static int mdthash_input(char *string, __u32 *inflags,
1366                          __u32 *exflags, __u32 *type)
1367 {
1368         char *name;
1369         struct mhf_list {
1370                 char *name;
1371                 __u32 flag;
1372         } mhflist[] = {
1373                 {"migrating", LMV_HASH_FLAG_MIGRATION},
1374                 {"badtype", LMV_HASH_FLAG_BAD_TYPE},
1375                 {"lostlmv", LMV_HASH_FLAG_LOST_LMV},
1376         };
1377
1378         if (string == NULL)
1379                 return -EINVAL;
1380
1381         *inflags = 0;
1382         *exflags = 0;
1383         *type = 0;
1384         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1385                 bool found = false;
1386                 int i;
1387
1388                 for (i = 0; i < ARRAY_SIZE(mhflist); i++) {
1389                         if (strcmp(name, mhflist[i].name) == 0 ||
1390                             name[0] == mhflist[i].name[0]) {
1391                                 *inflags |= mhflist[i].flag;
1392                                 found = true;
1393                         } else if (name[0] == '^' &&
1394                                    (strcmp(name + 1, mhflist[i].name) == 0 ||
1395                                     name[1] == mhflist[i].name[0])) {
1396                                 *exflags |= mhflist[i].flag;
1397                                 found = true;
1398                         }
1399                 }
1400                 if (!found) {
1401                         i = check_hashtype(name);
1402                         if (i > 0) {
1403                                 *type |= 1 << i;
1404                                 continue;
1405                         }
1406                         llapi_printf(LLAPI_MSG_ERROR,
1407                                      "%s: invalid mdt_hash value '%s'\n",
1408                                      progname, name);
1409                         return -EINVAL;
1410                 }
1411         }
1412
1413         /* don't allow to include and exclude the same flag */
1414         if (*inflags & *exflags) {
1415                 llapi_printf(LLAPI_MSG_ERROR,
1416                              "%s: include and exclude same flag '%s'\n",
1417                              progname, string);
1418                 return -EINVAL;
1419         }
1420
1421         return 0;
1422 }
1423
1424 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1425 {
1426         if (!string)
1427                 return -EINVAL;
1428
1429         *state = 0;
1430         *neg_state = 0;
1431
1432         if (strncmp(string, "^", 1) == 0) {
1433                 *neg_state = llapi_layout_string_flags(string + 1);
1434                 if (*neg_state != 0)
1435                         return 0;
1436         } else {
1437                 *state = llapi_layout_string_flags(string);
1438                 if (*state != 0)
1439                         return 0;
1440         }
1441
1442         llapi_printf(LLAPI_MSG_ERROR,
1443                      "%s: mirrored file state '%s' not supported\n",
1444                      progname, string);
1445         return -EINVAL;
1446 }
1447
1448 /**
1449  * struct mirror_args - Command-line arguments for mirror(s).
1450  * @m_count:  Number of mirrors to be created with this layout.
1451  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1452  * @m_layout: Mirror layout.
1453  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1454  * @m_next:   Point to the next node of the list.
1455  *
1456  * Command-line arguments for mirror(s) will be parsed and stored in
1457  * a linked list that consists of this structure.
1458  */
1459 struct mirror_args {
1460         __u32                   m_count;
1461         __u32                   m_flags;
1462         struct llapi_layout     *m_layout;
1463         const char              *m_file;
1464         struct mirror_args      *m_next;
1465         bool                    m_inherit;
1466 };
1467
1468 /**
1469  * enum mirror_flags - Flags for extending a mirrored file.
1470  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1471  *             in case the victim file(s) contains the same data as the
1472  *             original mirrored file.
1473  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1474  * @MF_COMP_ID: specified component id instead of mirror id
1475  *
1476  * Flags for extending a mirrored file.
1477  */
1478 enum mirror_flags {
1479         MF_NO_VERIFY    = 0x1,
1480         MF_DESTROY      = 0x2,
1481         MF_COMP_ID      = 0x4,
1482         MF_COMP_POOL    = 0x8,
1483 };
1484
1485 /**
1486  * mirror_create_sanity_check() - Check mirror list.
1487  * @list:  A linked list that stores the mirror arguments.
1488  *
1489  * This function does a sanity check on @list for creating
1490  * a mirrored file.
1491  *
1492  * Return: 0 on success or a negative error code on failure.
1493  */
1494 static int mirror_create_sanity_check(const char *fname,
1495                                       struct mirror_args *list,
1496                                       bool check_fname)
1497 {
1498         int rc = 0;
1499         bool has_m_file = false;
1500         bool has_m_layout = false;
1501
1502         if (!list)
1503                 return -EINVAL;
1504
1505         if (fname && check_fname) {
1506                 struct llapi_layout *layout;
1507
1508                 layout = llapi_layout_get_by_path(fname, 0);
1509                 if (!layout) {
1510                         fprintf(stderr,
1511                                 "error: %s: file '%s' couldn't get layout\n",
1512                                 progname, fname);
1513                         return -ENODATA;
1514                 }
1515
1516                 rc = llapi_layout_sanity(layout, false, true);
1517
1518                 llapi_layout_free(layout);
1519
1520                 if (rc) {
1521                         llapi_layout_sanity_perror(rc);
1522                         return rc;
1523                 }
1524         }
1525
1526         while (list) {
1527                 if (list->m_file) {
1528                         has_m_file = true;
1529                         llapi_layout_free(list->m_layout);
1530
1531                         list->m_layout =
1532                                 llapi_layout_get_by_path(list->m_file, 0);
1533                         if (!list->m_layout) {
1534                                 fprintf(stderr,
1535                                         "error: %s: file '%s' has no layout\n",
1536                                         progname, list->m_file);
1537                                 return -ENODATA;
1538                         }
1539                 } else {
1540                         has_m_layout = true;
1541                         if (!list->m_layout) {
1542                                 fprintf(stderr, "error: %s: no mirror layout\n",
1543                                         progname);
1544                                 return -EINVAL;
1545                         }
1546                 }
1547
1548                 rc = llapi_layout_sanity(list->m_layout, false, true);
1549                 if (rc) {
1550                         llapi_layout_sanity_perror(rc);
1551                         return rc;
1552                 }
1553
1554                 list = list->m_next;
1555         }
1556
1557         if (has_m_file && has_m_layout) {
1558                 fprintf(stderr,
1559                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1560                         progname);
1561                 return -EINVAL;
1562         }
1563
1564         return 0;
1565 }
1566
1567 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1568 {
1569         __u32 mirror_flags = *(__u32 *)cbdata;
1570         uint32_t flags;
1571         int rc;
1572
1573         rc = llapi_layout_comp_flags_get(layout, &flags);
1574         if (rc < 0)
1575                 return rc;
1576
1577         if (!flags) {
1578                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1579                 if (rc)
1580                         return rc;
1581         }
1582
1583         return LLAPI_LAYOUT_ITER_CONT;
1584 }
1585
1586 /**
1587  * mirror_create() - Create a mirrored file.
1588  * @fname:        The file to be created.
1589  * @mirror_list:  A linked list that stores the mirror arguments.
1590  *
1591  * This function creates a mirrored file @fname with the mirror(s)
1592  * from @mirror_list.
1593  *
1594  * Return: 0 on success or a negative error code on failure.
1595  */
1596 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1597 {
1598         struct llapi_layout *layout = NULL;
1599         struct mirror_args *cur_mirror = NULL;
1600         uint16_t mirror_count = 0;
1601         int i = 0;
1602         int rc = 0;
1603
1604         rc = mirror_create_sanity_check(fname, mirror_list, false);
1605         if (rc)
1606                 return rc;
1607
1608         cur_mirror = mirror_list;
1609         while (cur_mirror) {
1610                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1611                                                mirror_set_flags,
1612                                                &cur_mirror->m_flags);
1613                 if (rc) {
1614                         rc = -errno;
1615                         fprintf(stderr, "%s: failed to set mirror flags\n",
1616                                 progname);
1617                         goto error;
1618                 }
1619
1620                 for (i = 0; i < cur_mirror->m_count; i++) {
1621                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1622                         if (rc) {
1623                                 rc = -errno;
1624                                 fprintf(stderr,
1625                                         "error: %s: merge layout failed: %s\n",
1626                                         progname, strerror(errno));
1627                                 goto error;
1628                         }
1629                 }
1630                 mirror_count += cur_mirror->m_count;
1631                 cur_mirror = cur_mirror->m_next;
1632         }
1633
1634         if (!layout) {
1635                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1636                 return -EINVAL;
1637         }
1638
1639         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1640         if (rc) {
1641                 rc = -errno;
1642                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1643                         progname, strerror(errno));
1644                 goto error;
1645         }
1646
1647         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1648                                   layout);
1649         if (rc >= 0) {
1650                 close(rc);
1651                 rc = 0;
1652         }
1653
1654 error:
1655         llapi_layout_free(layout);
1656         return rc;
1657 }
1658
1659 /**
1660  * Compare files and check lease on @fd.
1661  *
1662  * \retval bytes number of bytes are the same
1663  */
1664 static ssize_t mirror_file_compare(int fd, int fdv)
1665 {
1666         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1667         void *buf;
1668         ssize_t bytes_done = 0;
1669         ssize_t bytes_read = 0;
1670
1671         buf = malloc(buflen * 2);
1672         if (!buf)
1673                 return -ENOMEM;
1674
1675         while (1) {
1676                 if (!llapi_lease_check(fd)) {
1677                         bytes_done = -EBUSY;
1678                         break;
1679                 }
1680
1681                 bytes_read = read(fd, buf, buflen);
1682                 if (bytes_read <= 0)
1683                         break;
1684
1685                 if (bytes_read != read(fdv, buf + buflen, buflen))
1686                         break;
1687
1688                 /*
1689                  * XXX: should compute the checksum on each buffer and then
1690                  * compare checksum to avoid cache collision
1691                  */
1692                 if (memcmp(buf, buf + buflen, bytes_read))
1693                         break;
1694
1695                 bytes_done += bytes_read;
1696         }
1697
1698         free(buf);
1699
1700         return bytes_done;
1701 }
1702
1703 static int mirror_extend_file(const char *fname, const char *victim_file,
1704                               enum mirror_flags mirror_flags)
1705 {
1706         int fd = -1;
1707         int fdv = -1;
1708         struct stat stbuf;
1709         struct stat stbuf_v;
1710         struct ll_ioc_lease *data = NULL;
1711         int rc;
1712
1713         fd = open(fname, O_RDWR);
1714         if (fd < 0) {
1715                 error_loc = "open source file";
1716                 rc = -errno;
1717                 goto out;
1718         }
1719
1720         fdv = open(victim_file, O_RDWR);
1721         if (fdv < 0) {
1722                 error_loc = "open target file";
1723                 rc = -errno;
1724                 goto out;
1725         }
1726
1727         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1728                 error_loc = "stat source or target file";
1729                 rc = -errno;
1730                 goto out;
1731         }
1732
1733         if (stbuf.st_dev != stbuf_v.st_dev) {
1734                 error_loc = "stat source and target file";
1735                 rc = -EXDEV;
1736                 goto out;
1737         }
1738
1739         /* mirrors should be of the same size */
1740         if (stbuf.st_size != stbuf_v.st_size) {
1741                 error_loc = "file sizes don't match";
1742                 rc = -EINVAL;
1743                 goto out;
1744         }
1745
1746         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1747         if (rc < 0) {
1748                 error_loc = "cannot get lease";
1749                 goto out;
1750         }
1751
1752         if (!(mirror_flags & MF_NO_VERIFY)) {
1753                 ssize_t ret;
1754                 /* mirrors should have the same contents */
1755                 ret = mirror_file_compare(fd, fdv);
1756                 if (ret != stbuf.st_size) {
1757                         error_loc = "file busy or contents don't match";
1758                         rc = ret < 0 ? ret : -EINVAL;
1759                         goto out;
1760                 }
1761         }
1762
1763         /* Get rid of caching pages from clients */
1764         rc = llapi_file_flush(fd);
1765         if (rc < 0) {
1766                 error_loc = "cannot get data version";
1767                 goto out;
1768         }
1769
1770         rc = llapi_file_flush(fdv);
1771         if (rc < 0) {
1772                 error_loc = "cannot get data version";
1773                 goto out;
1774         }
1775
1776         rc = migrate_set_timestamps(fd, &stbuf);
1777         if (rc < 0) {
1778                 error_loc = "cannot set source file timestamp";
1779                 goto out;
1780         }
1781
1782         /* Atomically put lease, merge layouts and close. */
1783         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1784         if (!data) {
1785                 error_loc = "memory allocation";
1786                 goto out;
1787         }
1788         data->lil_mode = LL_LEASE_UNLCK;
1789         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1790         data->lil_count = 1;
1791         data->lil_ids[0] = fdv;
1792         rc = llapi_lease_set(fd, data);
1793         if (rc < 0) {
1794                 error_loc = "cannot merge layout";
1795                 goto out;
1796         } else if (rc == 0) {
1797                 rc = -EBUSY;
1798                 error_loc = "lost lease lock";
1799                 goto out;
1800         }
1801         rc = 0;
1802
1803 out:
1804         if (data)
1805                 free(data);
1806         if (fd >= 0)
1807                 close(fd);
1808         if (fdv >= 0)
1809                 close(fdv);
1810         if (!rc)
1811                 (void) unlink(victim_file);
1812         if (rc < 0)
1813                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1814                         progname, fname, error_loc, strerror(-rc));
1815         return rc;
1816 }
1817
1818 static int mirror_extend_layout(char *name, struct llapi_layout *m_layout,
1819                                 bool inherit, uint32_t flags)
1820 {
1821         struct llapi_layout *f_layout = NULL;
1822         struct ll_ioc_lease *data = NULL;
1823         struct stat st;
1824         int fd = -1;
1825         int fdv = -1;
1826         int rc = 0;
1827
1828         if (inherit) {
1829                 f_layout = llapi_layout_get_by_path(name, 0);
1830                 if (!f_layout) {
1831                         rc = -EINVAL;
1832                         fprintf(stderr, "%s: cannot get layout\n", progname);
1833                         goto out;
1834                 }
1835                 rc = llapi_layout_get_last_init_comp(f_layout);
1836                 if (rc) {
1837                         fprintf(stderr, "%s: cannot get the last init comp\n",
1838                                 progname);
1839                         goto out;
1840                 }
1841                 rc = llapi_layout_mirror_inherit(f_layout, m_layout);
1842                 if (rc) {
1843                         fprintf(stderr,
1844                                 "%s: cannot inherit from the last init comp\n",
1845                                 progname);
1846                         goto out;
1847                 }
1848         }
1849
1850         llapi_layout_comp_flags_set(m_layout, flags);
1851         rc = migrate_open_files(name,
1852                              LLAPI_MIGRATION_NONDIRECT | LLAPI_MIGRATION_MIRROR,
1853                              NULL, m_layout, &fd, &fdv);
1854         if (rc < 0)
1855                 goto out;
1856
1857         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1858         if (rc < 0) {
1859                 error_loc = "cannot get lease";
1860                 goto out;
1861         }
1862
1863         rc = fstat(fd, &st);
1864         if (rc < 0) {
1865                 error_loc = "cannot stat source file";
1866                 goto out;
1867         }
1868
1869         rc = migrate_nonblock(fd, fdv);
1870         if (rc < 0) {
1871                 llapi_lease_release(fd);
1872                 goto out;
1873         }
1874
1875         rc = migrate_set_timestamps(fd, &st);
1876         if (rc < 0) {
1877                 error_loc = "cannot set source file timestamp";
1878                 goto out;
1879         }
1880
1881         /* Atomically put lease, merge layouts and close. */
1882         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1883         if (!data) {
1884                 error_loc = "memory allocation";
1885                 goto out;
1886         }
1887         data->lil_mode = LL_LEASE_UNLCK;
1888         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1889         data->lil_count = 1;
1890         data->lil_ids[0] = fdv;
1891         rc = llapi_lease_set(fd, data);
1892         if (rc < 0) {
1893                 error_loc = "cannot merge layout";
1894                 goto out;
1895         } else if (rc == 0) {
1896                 rc = -EBUSY;
1897                 error_loc = "lost lease lock";
1898                 goto out;
1899         }
1900         rc = 0;
1901
1902 out:
1903         if (data)
1904                 free(data);
1905         if (fd >= 0)
1906                 close(fd);
1907         if (fdv >= 0)
1908                 close(fdv);
1909         if (rc < 0)
1910                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1911                         progname, name, error_loc, strerror(-rc));
1912         return rc;
1913 }
1914
1915 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1916                          enum mirror_flags mirror_flags)
1917 {
1918         int rc = 0;
1919
1920         while (mirror_list) {
1921                 if (mirror_list->m_file) {
1922                         rc = mirror_extend_file(fname, mirror_list->m_file,
1923                                                 mirror_flags);
1924                 } else {
1925                         __u32 mirror_count = mirror_list->m_count;
1926
1927                         while (mirror_count > 0) {
1928                                 rc = mirror_extend_layout(fname,
1929                                                         mirror_list->m_layout,
1930                                                         mirror_list->m_inherit,
1931                                                         mirror_list->m_flags);
1932                                 if (rc)
1933                                         break;
1934
1935                                 --mirror_count;
1936                         }
1937                 }
1938                 if (rc)
1939                         break;
1940
1941                 mirror_list = mirror_list->m_next;
1942         }
1943
1944         return rc;
1945 }
1946
1947 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
1948 {
1949         uint32_t id;
1950         int rc;
1951
1952         rc = llapi_layout_mirror_id_get(layout, &id);
1953         if (rc < 0)
1954                 return rc;
1955
1956         if ((__u16)id == *(__u16 *)cbdata)
1957                 return LLAPI_LAYOUT_ITER_STOP;
1958
1959         return LLAPI_LAYOUT_ITER_CONT;
1960 }
1961
1962 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
1963 {
1964         uint32_t id;
1965         int rc;
1966
1967         rc = llapi_layout_comp_id_get(layout, &id);
1968         if (rc < 0)
1969                 return rc;
1970
1971         if (id == *(__u32 *)cbdata)
1972                 return LLAPI_LAYOUT_ITER_STOP;
1973
1974         return LLAPI_LAYOUT_ITER_CONT;
1975 }
1976
1977 static int find_mirror_id_by_pool(struct llapi_layout *layout, void *cbdata)
1978 {
1979         char buf[LOV_MAXPOOLNAME + 1];
1980         struct pool_to_id_cbdata *d = (void *)cbdata;
1981         uint32_t id;
1982         int rc;
1983
1984         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
1985         if (rc < 0)
1986                 return rc;
1987         if (strcmp(d->pool, buf))
1988                 return LLAPI_LAYOUT_ITER_CONT;
1989
1990         rc = llapi_layout_mirror_id_get(layout, &id);
1991         if (rc < 0)
1992                 return rc;
1993         d->id = id;
1994
1995         return LLAPI_LAYOUT_ITER_STOP;
1996 }
1997
1998 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata)
1999 {
2000         char buf[LOV_MAXPOOLNAME + 1];
2001         struct pool_to_id_cbdata *d = (void *)cbdata;
2002         uint32_t id;
2003         int rc;
2004
2005         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
2006         if (rc < 0)
2007                 return rc;
2008         if (strcmp(d->pool, buf))
2009                 return LLAPI_LAYOUT_ITER_CONT;
2010
2011         rc = llapi_layout_comp_id_get(layout, &id);
2012         if (rc < 0)
2013                 return rc;
2014         d->id = id;
2015
2016         return LLAPI_LAYOUT_ITER_STOP;
2017 }
2018
2019 struct collect_ids_data {
2020         __u16   *cid_ids;
2021         int     cid_count;
2022         __u16   cid_exclude;
2023 };
2024
2025 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
2026 {
2027         struct collect_ids_data *cid = cbdata;
2028         uint32_t id;
2029         int rc;
2030
2031         rc = llapi_layout_mirror_id_get(layout, &id);
2032         if (rc < 0)
2033                 return rc;
2034
2035         if ((__u16)id != cid->cid_exclude) {
2036                 int i;
2037
2038                 for (i = 0; i < cid->cid_count; i++) {
2039                         /* already collected the mirror id */
2040                         if (id == cid->cid_ids[i])
2041                                 return LLAPI_LAYOUT_ITER_CONT;
2042                 }
2043                 cid->cid_ids[cid->cid_count] = id;
2044                 cid->cid_count++;
2045         }
2046
2047         return LLAPI_LAYOUT_ITER_CONT;
2048 }
2049
2050 /**
2051  * last_non_stale_mirror() - Check if a mirror is the last non-stale mirror.
2052  * @mirror_id: Mirror id to be checked.
2053  * @layout:    Mirror component list.
2054  *
2055  * This function checks if a mirror with specified @mirror_id is the last
2056  * non-stale mirror of a layout @layout.
2057  *
2058  * Return: true or false.
2059  */
2060 static inline
2061 bool last_non_stale_mirror(__u16 mirror_id, struct llapi_layout *layout)
2062 {
2063         __u16 mirror_ids[128] = { 0 };
2064         struct collect_ids_data cid = { .cid_ids = mirror_ids,
2065                                         .cid_count = 0,
2066                                         .cid_exclude = mirror_id, };
2067         int i;
2068
2069         llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
2070
2071         for (i = 0; i < cid.cid_count; i++) {
2072                 struct llapi_resync_comp comp_array[1024] = { { 0 } };
2073                 int comp_size = 0;
2074
2075                 comp_size = llapi_mirror_find_stale(layout, comp_array,
2076                                                     ARRAY_SIZE(comp_array),
2077                                                     &mirror_ids[i], 1);
2078                 if (comp_size == 0)
2079                         return false;
2080         }
2081
2082         return true;
2083 }
2084
2085 static int mirror_split(const char *fname, __u32 id, const char *pool,
2086                         enum mirror_flags mflags, const char *victim_file)
2087 {
2088         struct llapi_layout *layout;
2089         char parent[PATH_MAX];
2090         char victim[PATH_MAX];
2091         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
2092         char *ptr;
2093         struct ll_ioc_lease *data;
2094         uint16_t mirror_count;
2095         __u32 mirror_id;
2096         int mdt_index;
2097         int fd, fdv;
2098         bool purge = true; /* delete mirror by setting fdv=fd */
2099         bool is_encrypted;
2100         int rc;
2101
2102         if (victim_file && (strcmp(fname, victim_file) == 0)) {
2103                 fprintf(stderr,
2104                         "error %s: the source file '%s' and -f file are the same\n",
2105                         progname, fname);
2106                 return -EINVAL;
2107         }
2108
2109         /* check fname contains mirror with mirror_id/comp_id */
2110         layout = llapi_layout_get_by_path(fname, 0);
2111         if (!layout) {
2112                 fprintf(stderr,
2113                         "error %s: file '%s' couldn't get layout\n",
2114                         progname, fname);
2115                 return -EINVAL;
2116         }
2117
2118         rc = llapi_layout_sanity(layout, false, true);
2119         if (rc) {
2120                 llapi_layout_sanity_perror(rc);
2121                 goto free_layout;
2122         }
2123
2124         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
2125         if (rc) {
2126                 fprintf(stderr,
2127                         "error %s: file '%s' couldn't get mirror count\n",
2128                         progname, fname);
2129                 goto free_layout;
2130         }
2131         if (mirror_count < 2) {
2132                 fprintf(stderr,
2133                         "error %s: file '%s' has %d component, cannot split\n",
2134                         progname, fname, mirror_count);
2135                 goto free_layout;
2136         }
2137
2138         if (mflags & MF_COMP_POOL) {
2139                 struct pool_to_id_cbdata data = { .pool = pool };
2140
2141                 rc = llapi_layout_comp_iterate(layout, find_mirror_id_by_pool,
2142                                                &data);
2143                 mirror_id = data.id;
2144         } else if (mflags & MF_COMP_ID) {
2145                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
2146                 mirror_id = mirror_id_of(id);
2147         } else {
2148                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
2149                 mirror_id = id;
2150         }
2151         if (rc < 0) {
2152                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
2153                         progname, fname);
2154                 goto free_layout;
2155         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
2156                 if (mflags & MF_COMP_POOL) {
2157                         fprintf(stderr,
2158                                 "error %s: file '%s' does not contain mirror with pool '%s'\n",
2159                                 progname, fname, pool);
2160                         goto free_layout;
2161                 } else if (mflags & MF_COMP_ID) {
2162                         fprintf(stderr,
2163                                 "error %s: file '%s' does not contain mirror with comp-id %u\n",
2164                                 progname, fname, id);
2165                         goto free_layout;
2166                 } else {
2167                         fprintf(stderr,
2168                                 "error %s: file '%s' does not contain mirror with id %u\n",
2169                                 progname, fname, id);
2170                         goto free_layout;
2171                 }
2172         }
2173
2174         if (!victim_file && mflags & MF_DESTROY)
2175                 /* Allow mirror split even without the key on encrypted files,
2176                  * and in this case of a 'split -d', open file with O_DIRECT
2177                  * (no IOs will be done).
2178                  */
2179                 fd = open(fname, O_RDWR | O_DIRECT | O_FILE_ENC);
2180         else
2181                 fd = open(fname, O_RDWR);
2182
2183         if (fd < 0) {
2184                 fprintf(stderr,
2185                         "error %s: open file '%s' failed: %s\n",
2186                         progname, fname, strerror(errno));
2187                 goto free_layout;
2188         }
2189
2190         /* get victim file directory pathname */
2191         if (strlen(fname) > sizeof(parent) - 1) {
2192                 fprintf(stderr, "error %s: file name of '%s' too long\n",
2193                         progname, fname);
2194                 rc = -ERANGE;
2195                 goto close_fd;
2196         }
2197         strncpy(parent, fname, sizeof(parent));
2198         ptr = strrchr(parent, '/');
2199         if (!ptr) {
2200                 if (!getcwd(parent, sizeof(parent))) {
2201                         fprintf(stderr, "error %s: getcwd failed: %s\n",
2202                                 progname, strerror(errno));
2203                         rc = -errno;
2204                         goto close_fd;
2205                 }
2206         } else {
2207                 if (ptr == parent)
2208                         ptr = parent + 1;
2209                 *ptr = '\0';
2210         }
2211
2212         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
2213         if (rc < 0) {
2214                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
2215                         progname, fname);
2216                 goto close_fd;
2217         }
2218
2219         rc = llapi_file_is_encrypted(fd);
2220         if (rc < 0) {
2221                 fprintf(stderr, "%s: cannot get flags of '%s': %d\n",
2222                         progname, fname, rc);
2223                 goto close_fd;
2224         }
2225         is_encrypted = rc;
2226
2227 again:
2228         if (!victim_file) {
2229                 /* use a temp file to store the splitted layout */
2230                 if (mflags & MF_DESTROY) {
2231                         char file_path[PATH_MAX];
2232                         unsigned int rnumber;
2233                         int open_flags;
2234
2235                         if (last_non_stale_mirror(mirror_id, layout)) {
2236                                 rc = -EUCLEAN;
2237                                 fprintf(stderr,
2238                                         "%s: cannot destroy the last non-stale mirror of file '%s'\n",
2239                                         progname, fname);
2240                                 goto close_fd;
2241                         }
2242
2243                         if (purge) {
2244                                 /* don't use volatile file for mirror destroy */
2245                                 fdv = fd;
2246                         } else {
2247                                 /**
2248                                  * try the old way to delete mirror using
2249                                  * volatile file.
2250                                  */
2251                                 do {
2252                                         rnumber = random();
2253                                         rc = snprintf(file_path,
2254                                                       sizeof(file_path),
2255                                                       "%s/" LUSTRE_VOLATILE_HDR ":%.4X:%.4X:fd=%.2d",
2256                                                       parent, mdt_index,
2257                                                       rnumber, fd);
2258                                         if (rc < 0 ||
2259                                             rc >= sizeof(file_path)) {
2260                                                 fdv = -ENAMETOOLONG;
2261                                                 break;
2262                                         }
2263
2264                                         open_flags = O_RDWR |
2265                                              (O_LOV_DELAY_CREATE & ~O_ACCMODE) |
2266                                              O_CREAT | O_EXCL | O_NOFOLLOW |
2267                                              /* O_DIRECT for mirror split -d */
2268                                              O_DIRECT |
2269                                              /* Allow split without the key */
2270                                              O_FILE_ENC;
2271                                         fdv = open(file_path, open_flags,
2272                                                    S_IRUSR | S_IWUSR);
2273                                         if (fdv < 0)
2274                                                 rc = -errno;
2275                                 } while (fdv < 0 && rc == -EEXIST);
2276                         }
2277                 } else {
2278                         if (is_encrypted) {
2279                                 rc = -1;
2280                                 fprintf(stderr,
2281                                         "error %s: not permitted on encrypted file '%s': %d\n",
2282                                         progname, fname, rc);
2283                                 goto close_fd;
2284                         }
2285
2286                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
2287                                  fname, mirror_id);
2288                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
2289                 }
2290         } else {
2291                 /* user specified victim file */
2292                 if (is_encrypted) {
2293                         rc = -1;
2294                         fprintf(stderr,
2295                                 "error %s: not permitted on encrypted file '%s': %d\n",
2296                                 progname, fname, rc);
2297                         goto close_fd;
2298                 }
2299                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
2300         }
2301
2302         if (fdv < 0) {
2303                 fprintf(stderr,
2304                         "error %s: create victim file failed: %s\n",
2305                         progname, strerror(errno));
2306                 goto close_fd;
2307         }
2308
2309         /* get lease lock of fname */
2310         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
2311         if (rc < 0) {
2312                 fprintf(stderr,
2313                         "error %s: cannot get lease of file '%s': %d\n",
2314                         progname, fname, rc);
2315                 goto close_victim;
2316         }
2317
2318         /* Atomatically put lease, split layouts and close. */
2319         data = malloc(offsetof(typeof(*data), lil_ids[2]));
2320         if (!data) {
2321                 rc = -ENOMEM;
2322                 goto close_victim;
2323         }
2324
2325         data->lil_mode = LL_LEASE_UNLCK;
2326         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
2327         data->lil_count = 2;
2328         data->lil_ids[0] = fdv;
2329         data->lil_ids[1] = mirror_id;
2330         rc = llapi_lease_set(fd, data);
2331         if (rc <= 0) {
2332                 if (rc == -EINVAL && purge) {
2333                         /* could be old MDS which prohibit fd==fdv */
2334                         purge = false;
2335                         goto again;
2336
2337                 }
2338                 if (rc == 0) /* lost lease lock */
2339                         rc = -EBUSY;
2340                 fprintf(stderr,
2341                         "error %s: cannot split '%s': %s\n",
2342                         progname, fname, strerror(-rc));
2343         } else {
2344                 rc = 0;
2345         }
2346         free(data);
2347
2348 close_victim:
2349         if (!purge)
2350                 close(fdv);
2351 close_fd:
2352         close(fd);
2353 free_layout:
2354         llapi_layout_free(layout);
2355         return rc;
2356 }
2357
2358 static inline
2359 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
2360                            __u16 *mirror_ids, int ids_nr);
2361
2362 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
2363                               __u64 migration_flags)
2364 {
2365         struct ll_ioc_lease *data = NULL;
2366         int rc;
2367
2368         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
2369         if (rc < 0) {
2370                 error_loc = "cannot get lease";
2371                 goto out_close;
2372         }
2373
2374         rc = migrate_nonblock(fd, fdv);
2375         if (rc < 0)
2376                 goto out_release;
2377
2378         /* Atomically put lease, merge layouts, resync and close. */
2379         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
2380         if (!data) {
2381                 error_loc = "memory allocation";
2382                 goto out_release;
2383         }
2384         data->lil_mode = LL_LEASE_UNLCK;
2385         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
2386         data->lil_count = 1;
2387         data->lil_ids[0] = fdv;
2388         rc = llapi_lease_set(fd, data);
2389         if (rc < 0) {
2390                 error_loc = "cannot merge layout";
2391                 goto out_close;
2392         } else if (rc == 0) {
2393                 rc = -EBUSY;
2394                 error_loc = "lost lease lock";
2395                 goto out_close;
2396         }
2397         close(fd);
2398         close(fdv);
2399
2400         rc = lfs_mirror_resync_file(name, data, NULL, 0);
2401         if (rc) {
2402                 error_loc = "cannot resync file";
2403                 goto out;
2404         }
2405
2406         /* delete first mirror now */
2407         rc = mirror_split(name, 1, NULL, MF_DESTROY, NULL);
2408         if (rc < 0)
2409                 error_loc = "cannot delete old layout";
2410         goto out;
2411
2412 out_release:
2413         llapi_lease_release(fd);
2414 out_close:
2415         close(fd);
2416         close(fdv);
2417 out:
2418         if (rc < 0)
2419                 fprintf(stderr, "error: %s: %s: %s: %s\n",
2420                         progname, name, error_loc, strerror(-rc));
2421         else if (migration_flags & LLAPI_MIGRATION_VERBOSE)
2422                 printf("%s\n", name);
2423         if (data)
2424                 free(data);
2425         return rc;
2426 }
2427
2428 /**
2429  * Parse a string containing an target index list into an array of integers.
2430  *
2431  * The input string contains a comma delimited list of individual
2432  * indices and ranges, for example "1,2-4,7". Add the indices into the
2433  * \a tgts array and remove duplicates.
2434  *
2435  * \param[out] tgts             array to store indices in
2436  * \param[in] size              size of \a tgts array
2437  * \param[in] offset            starting index in \a tgts
2438  * \param[in] arg               string containing OST index list
2439  * \param[in/out] overstriping  index list may contain duplicates
2440  *
2441  * \retval positive    number of indices in \a tgts
2442  * \retval -EINVAL     unable to parse \a arg
2443  */
2444 static int parse_targets(__u32 *tgts, int size, int offset, char *arg,
2445                          unsigned long long *pattern)
2446 {
2447         int rc;
2448         int nr = offset;
2449         int slots = size - offset;
2450         char *ptr = NULL;
2451         bool overstriped = false;
2452         bool end_of_loop;
2453
2454         if (!arg)
2455                 return -EINVAL;
2456
2457         end_of_loop = false;
2458         while (!end_of_loop) {
2459                 int start_index = 0;
2460                 int end_index = 0;
2461                 int i;
2462                 char *endptr = NULL;
2463
2464                 rc = -EINVAL;
2465
2466                 ptr = strchrnul(arg, ',');
2467
2468                 end_of_loop = *ptr == '\0';
2469                 *ptr = '\0';
2470
2471                 errno = 0;
2472                 start_index = strtol(arg, &endptr, 0);
2473                 if (endptr == arg) /* no data at all */
2474                         break;
2475                 if (errno != 0 || start_index < -1 ||
2476                     (*endptr != '-' && *endptr != '\0'))
2477                         break;
2478
2479                 end_index = start_index;
2480                 if (*endptr == '-') {
2481                         errno = 0;
2482                         end_index = strtol(endptr + 1, &endptr, 0);
2483                         if (errno != 0 || *endptr != '\0' || end_index < -1)
2484                                 break;
2485                         if (end_index < start_index)
2486                                 break;
2487                 }
2488
2489                 for (i = start_index; i <= end_index && slots > 0; i++) {
2490                         int j;
2491
2492                         /* remove duplicate */
2493                         for (j = 0; j < offset; j++) {
2494                                 if (tgts[j] == i && pattern &&
2495                                     *pattern == LLAPI_LAYOUT_OVERSTRIPING)
2496                                         overstriped = true;
2497                                 else if (tgts[j] == i)
2498                                         return -EINVAL;
2499                         }
2500
2501                         j = offset;
2502
2503                         if (j == offset) { /* check complete */
2504                                 tgts[nr++] = i;
2505                                 --slots;
2506                         }
2507                 }
2508
2509                 if (slots == 0 && i < end_index)
2510                         break;
2511
2512                 *ptr = ',';
2513                 arg = ++ptr;
2514                 offset = nr;
2515                 rc = 0;
2516         }
2517         if (!end_of_loop && ptr)
2518                 *ptr = ',';
2519
2520         if (!overstriped && pattern)
2521                 *pattern = LLAPI_LAYOUT_DEFAULT;
2522
2523         return rc < 0 ? rc : nr;
2524 }
2525
2526 struct lfs_setstripe_args {
2527         unsigned long long       lsa_comp_end;
2528         unsigned long long       lsa_stripe_size;
2529         unsigned long long       lsa_extension_size;
2530         long long                lsa_stripe_count;
2531         long long                lsa_stripe_off;
2532         __u32                    lsa_comp_flags;
2533         __u32                    lsa_comp_neg_flags;
2534         unsigned long long       lsa_pattern;
2535         unsigned int             lsa_mirror_count;
2536         int                      lsa_nr_tgts;
2537         bool                     lsa_first_comp;
2538         bool                     lsa_extension_comp;
2539         __u32                   *lsa_tgts;
2540         char                    *lsa_pool_name;
2541 };
2542
2543 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2544 {
2545         unsigned int mirror_count = lsa->lsa_mirror_count;
2546         bool first_comp = lsa->lsa_first_comp;
2547
2548         memset(lsa, 0, sizeof(*lsa));
2549
2550         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2551         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2552         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2553         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2554         lsa->lsa_pool_name = NULL;
2555
2556         lsa->lsa_mirror_count = mirror_count;
2557         lsa->lsa_first_comp = first_comp;
2558 }
2559
2560 /**
2561  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2562  * @lsa: Stripe options to be initialized and inherited.
2563  *
2564  * This function initializes stripe options in @lsa and inherit
2565  * stripe_size, stripe_count and OST pool_name options.
2566  *
2567  * Return: void.
2568  */
2569 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2570 {
2571         unsigned long long stripe_size;
2572         long long stripe_count;
2573         char *pool_name = NULL;
2574
2575         stripe_size = lsa->lsa_stripe_size;
2576         stripe_count = lsa->lsa_stripe_count;
2577         pool_name = lsa->lsa_pool_name;
2578
2579         setstripe_args_init(lsa);
2580
2581         lsa->lsa_stripe_size = stripe_size;
2582         lsa->lsa_stripe_count = stripe_count;
2583         lsa->lsa_pool_name = pool_name;
2584 }
2585
2586 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2587 {
2588         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2589                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2590                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2591                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2592                 lsa->lsa_comp_end != 0);
2593 }
2594
2595 static int lsa_args_stripe_count_check(struct lfs_setstripe_args *lsa)
2596 {
2597         if (lsa->lsa_nr_tgts) {
2598                 if (lsa->lsa_nr_tgts < 0 ||
2599                     lsa->lsa_nr_tgts >= LOV_MAX_STRIPE_COUNT) {
2600                         fprintf(stderr, "Invalid nr_tgts(%d)\n",
2601                                 lsa->lsa_nr_tgts);
2602                         errno = EINVAL;
2603                         return -1;
2604                 }
2605
2606                 if (lsa->lsa_stripe_count > 0 &&
2607                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2608                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2609                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2610                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2611                                 lsa->lsa_stripe_count,
2612                                 lsa->lsa_nr_tgts);
2613                         errno = EINVAL;
2614                         return -1;
2615                 }
2616         }
2617
2618         return 0;
2619
2620 }
2621
2622 /**
2623  * comp_args_to_layout() - Create or extend a composite layout.
2624  * @composite:       Pointer to the composite layout.
2625  * @lsa:             Stripe options for the new component.
2626  *
2627  * This function creates or extends a composite layout by adding a new
2628  * component with stripe options from @lsa.
2629  *
2630  * When modified, adjust llapi_stripe_param_verify() if needed as well.
2631  *
2632  * Return: 0 on success or an error code on failure.
2633  */
2634 static int comp_args_to_layout(struct llapi_layout **composite,
2635                                struct lfs_setstripe_args *lsa,
2636                                bool set_extent)
2637 {
2638         struct llapi_layout *layout = *composite;
2639         uint64_t prev_end = 0;
2640         uint64_t size;
2641         int i = 0, rc;
2642
2643 new_comp:
2644         if (!layout) {
2645                 layout = llapi_layout_alloc();
2646                 if (!layout) {
2647                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2648                                 strerror(errno));
2649                         errno = ENOMEM;
2650                         return -1;
2651                 }
2652                 *composite = layout;
2653                 lsa->lsa_first_comp = true;
2654         } else {
2655                 uint64_t start;
2656
2657                 /*
2658                  * Get current component extent, current component
2659                  * must be the tail component.
2660                  */
2661                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2662                 if (rc) {
2663                         fprintf(stderr, "Get comp extent failed. %s\n",
2664                                 strerror(errno));
2665                         return rc;
2666                 }
2667
2668                 if (lsa->lsa_first_comp) {
2669                         prev_end = 0;
2670                         rc = llapi_layout_add_first_comp(layout);
2671                 } else {
2672                         rc = llapi_layout_comp_add(layout);
2673                 }
2674                 if (rc) {
2675                         fprintf(stderr, "Add component failed. %s\n",
2676                                 strerror(errno));
2677                         return rc;
2678                 }
2679         }
2680
2681         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2682         if (rc) {
2683                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2684                         lsa->lsa_comp_flags, strerror(errno));
2685                 return rc;
2686         }
2687
2688         if (set_extent) {
2689                 uint64_t comp_end = lsa->lsa_comp_end;
2690
2691                 /*
2692                  * The extendable component is 0-length, so it can be removed
2693                  * if there is insufficient space to extend it.
2694                  */
2695                 if (lsa->lsa_extension_comp)
2696                         comp_end = prev_end;
2697
2698                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2699                                                   comp_end);
2700                 if (rc) {
2701                         fprintf(stderr, "Set extent [%lu, %lu) failed. %s\n",
2702                                 prev_end, comp_end, strerror(errno));
2703                         return rc;
2704                 }
2705         }
2706         /* reset lsa_first_comp */
2707         lsa->lsa_first_comp = false;
2708
2709         /* Data-on-MDT component setting */
2710         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2711                 /* Yaml support */
2712                 if (lsa->lsa_stripe_count == 0)
2713                         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2714                 if (lsa->lsa_stripe_size == lsa->lsa_comp_end)
2715                         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2716                 if (lsa->lsa_stripe_off == -1 ||
2717                     lsa->lsa_stripe_off == 0)
2718                         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2719                 /*
2720                  * In case of Data-on-MDT patterns the only extra option
2721                  * applicable is stripe size option.
2722                  */
2723                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2724                         fprintf(stderr,
2725                                 "Option 'stripe-count' can't be specified with Data-on-MDT component: %lld\n",
2726                                 lsa->lsa_stripe_count);
2727                         errno = EINVAL;
2728                         return -1;
2729                 }
2730                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT &&
2731                     lsa->lsa_stripe_size != lsa->lsa_comp_end - prev_end) {
2732                         fprintf(stderr,
2733                                 "Option 'stripe-size' can't be specified with Data-on-MDT component: %llu\n",
2734                                 lsa->lsa_stripe_size);
2735                         errno = EINVAL;
2736                         return -1;
2737                 }
2738                 if (lsa->lsa_nr_tgts != 0) {
2739                         fprintf(stderr,
2740                                 "Option 'ost-list' can't be specified with Data-on-MDT component: '%i'\n",
2741                                 lsa->lsa_nr_tgts);
2742                         errno = EINVAL;
2743                         return -1;
2744                 }
2745                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2746                         fprintf(stderr,
2747                                 "Option 'stripe-offset' can't be specified with Data-on-MDT component: %lld\n",
2748                                 lsa->lsa_stripe_off);
2749                         errno = EINVAL;
2750                         return -1;
2751                 }
2752                 if (lsa->lsa_pool_name != 0) {
2753                         fprintf(stderr,
2754                                 "Option 'pool' can't be specified with Data-on-MDT component: '%s'\n",
2755                                 lsa->lsa_pool_name);
2756                         errno = EINVAL;
2757                         return -1;
2758                 }
2759
2760                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2761                 if (rc) {
2762                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2763                                 lsa->lsa_pattern,
2764                                 strerror(errno));
2765                         return rc;
2766                 }
2767                 /* Data-on-MDT component has always single stripe up to end */
2768                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2769         } else if (lsa->lsa_pattern == LLAPI_LAYOUT_OVERSTRIPING) {
2770                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2771                 if (rc) {
2772                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2773                                 lsa->lsa_pattern,
2774                                 strerror(errno));
2775                         return rc;
2776                 }
2777         }
2778
2779         size = lsa->lsa_comp_flags & LCME_FL_EXTENSION ?
2780                 lsa->lsa_extension_size : lsa->lsa_stripe_size;
2781
2782         if (lsa->lsa_comp_flags & LCME_FL_EXTENSION)
2783                 rc = llapi_layout_extension_size_set(layout, size);
2784         else
2785                 rc = llapi_layout_stripe_size_set(layout, size);
2786
2787         if (rc) {
2788                 fprintf(stderr, "Set stripe size %lu failed: %s\n",
2789                         size, strerror(errno));
2790                 return rc;
2791         }
2792
2793         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2794         if (rc) {
2795                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2796                         lsa->lsa_stripe_count, strerror(errno));
2797                 return rc;
2798         }
2799
2800         if (lsa->lsa_pool_name) {
2801                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2802                 if (rc) {
2803                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2804                                 lsa->lsa_pool_name, strerror(errno));
2805                         return rc;
2806                 }
2807         } else {
2808                 rc = llapi_layout_pool_name_set(layout, "");
2809                 if (rc) {
2810                         fprintf(stderr, "Clear pool name failed: %s\n",
2811                                 strerror(errno));
2812                         return rc;
2813                 }
2814         }
2815
2816         rc = lsa_args_stripe_count_check(lsa);
2817         if (rc)
2818                 return rc;
2819
2820         if (lsa->lsa_nr_tgts > 0) {
2821                 bool found = false;
2822
2823                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2824                         rc = llapi_layout_ost_index_set(layout, i,
2825                                                         lsa->lsa_tgts[i]);
2826                         if (rc)
2827                                 break;
2828
2829                         /* Make sure stripe offset is in OST list. */
2830                         if (lsa->lsa_tgts[i] == lsa->lsa_stripe_off)
2831                                 found = true;
2832                 }
2833                 if (!found) {
2834                         fprintf(stderr, "Invalid stripe offset '%lld', not in the target list",
2835                                 lsa->lsa_stripe_off);
2836                         errno = EINVAL;
2837                         return -1;
2838                 }
2839         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2840                    lsa->lsa_stripe_off != -1) {
2841                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2842         }
2843         if (rc) {
2844                 fprintf(stderr, "Set ost index %d failed. %s\n",
2845                         i, strerror(errno));
2846                 return rc;
2847         }
2848
2849         /* Create the second, virtual component of extension space */
2850         if (lsa->lsa_extension_comp) {
2851                 lsa->lsa_comp_flags |= LCME_FL_EXTENSION;
2852                 lsa->lsa_extension_comp = false;
2853                 goto new_comp;
2854         }
2855
2856         return rc;
2857 }
2858
2859 static int build_component(struct llapi_layout **layout,
2860                            struct lfs_setstripe_args *lsa, bool set_extent)
2861 {
2862         int rc;
2863
2864         rc = comp_args_to_layout(layout, lsa, set_extent);
2865         if (rc)
2866                 return rc;
2867
2868         if (lsa->lsa_mirror_count > 0) {
2869                 rc = llapi_layout_mirror_count_set(*layout,
2870                                                    lsa->lsa_mirror_count);
2871                 if (rc)
2872                         return rc;
2873
2874                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2875                 if (rc)
2876                         return rc;
2877                 lsa->lsa_mirror_count = 0;
2878         }
2879
2880         return rc;
2881 }
2882
2883 static int build_prev_component(struct llapi_layout **layout,
2884                                 struct lfs_setstripe_args *prev,
2885                                 struct lfs_setstripe_args *lsa,
2886                                 bool set_extent)
2887 {
2888         int extension = lsa->lsa_comp_flags & LCME_FL_EXTENSION;
2889         int rc;
2890
2891         if (prev->lsa_stripe_size) {
2892                 if (extension) {
2893                         prev->lsa_comp_end = lsa->lsa_comp_end;
2894                         prev->lsa_extension_size = lsa->lsa_extension_size;
2895                         prev->lsa_extension_comp = true;
2896                 }
2897
2898                 rc = build_component(layout, prev, true);
2899                 if (rc)
2900                         return rc;
2901         }
2902
2903         /*
2904          * Copy lsa to previous lsa;
2905          * if this is an extension component, make the previous invalid;
2906          */
2907         if (extension)
2908                 prev->lsa_stripe_size = 0;
2909         else
2910                 *prev = *lsa;
2911
2912         return 0;
2913 }
2914
2915 #ifndef LCME_TEMPLATE_FLAGS
2916 #define LCME_TEMPLATE_FLAGS     (LCME_FL_PREF_RW | LCME_FL_NOSYNC | \
2917                                  LCME_FL_EXTENSION)
2918 #endif
2919
2920 static int build_layout_from_yaml_node(struct cYAML *node,
2921                                        struct llapi_layout **layout,
2922                                        struct lfs_setstripe_args *lsa,
2923                                        struct lfs_setstripe_args *prevp)
2924 {
2925         struct lfs_setstripe_args prev = { 0 };
2926         __u32 *osts = lsa->lsa_tgts;
2927         char *string;
2928         int rc = 0;
2929
2930         if (!prevp)
2931                 prevp = &prev;
2932
2933         while (node) {
2934                 string = node->cy_string;
2935
2936                 if (node->cy_type == CYAML_TYPE_OBJECT) {
2937                         /* go deep to sub blocks */
2938                         if (string && !strncmp(string, "component", 9) &&
2939                             strncmp(string, "component0", 10) &&
2940                             strncmp(string, "components", 10)) {
2941                                 rc = build_prev_component(layout, prevp, lsa,
2942                                                           true);
2943                                 if (rc)
2944                                         return rc;
2945
2946                                 /* initialize lsa. */
2947                                 setstripe_args_init(lsa);
2948                                 lsa->lsa_first_comp = false;
2949                                 lsa->lsa_tgts = osts;
2950                         }
2951
2952                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2953                                                          lsa, prevp);
2954                         if (rc)
2955                                 return rc;
2956                 } else {
2957                         if (!node->cy_string)
2958                                 return -EINVAL;
2959
2960                         /* skip leading lmm_ if present, to simplify parsing */
2961                         if (strncmp(string, "lmm_", 4) == 0)
2962                                 string += 4;
2963
2964                         if (node->cy_type == CYAML_TYPE_STRING) {
2965                                 if (!strcmp(string, "lcme_extent.e_end")) {
2966                                         if (!strcmp(node->cy_valuestring, "EOF") ||
2967                                             !strcmp(node->cy_valuestring, "eof"))
2968                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2969                                 } else if (!strcmp(string, "pool")) {
2970                                         lsa->lsa_pool_name = node->cy_valuestring;
2971                                 } else if (!strcmp(string, "pattern")) {
2972                                         if (!strcmp(node->cy_valuestring, "mdt"))
2973                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2974                                         if (!strcmp(node->cy_valuestring,
2975                                                     "raid0,overstriped"))
2976                                                 lsa->lsa_pattern =
2977                                                         LLAPI_LAYOUT_OVERSTRIPING;
2978                                 } else if (!strcmp(string, "lcme_flags")) {
2979                                         rc = comp_str2flags(node->cy_valuestring,
2980                                                             &lsa->lsa_comp_flags,
2981                                                             &lsa->lsa_comp_neg_flags);
2982                                         if (rc)
2983                                                 return rc;
2984                                         /*
2985                                          * Only template flags have meaning in
2986                                          * the layout for a new file
2987                                          */
2988                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
2989                                 }
2990                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2991                                 if (!strcmp(string, "lcm_mirror_count")) {
2992                                         lsa->lsa_mirror_count = node->cy_valueint;
2993                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
2994                                         if (node->cy_valueint == 0)
2995                                                 lsa->lsa_first_comp = true;
2996                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
2997                                         if (node->cy_valueint == -1)
2998                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2999                                         else
3000                                                 lsa->lsa_comp_end = node->cy_valueint;
3001                                 } else if (!strcmp(string, "stripe_count")) {
3002                                         lsa->lsa_stripe_count = node->cy_valueint;
3003                                 } else if (!strcmp(string, "stripe_size")) {
3004                                         lsa->lsa_stripe_size = node->cy_valueint;
3005                                 } else if (!strcmp(string, "extension_size")) {
3006                                         lsa->lsa_extension_size = node->cy_valueint;
3007                                         lsa->lsa_extension_comp = true;
3008                                 } else if (!strcmp(string, "stripe_offset")) {
3009                                         lsa->lsa_stripe_off = node->cy_valueint;
3010                                 } else if (!strcmp(string, "l_ost_idx")) {
3011                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
3012                                         lsa->lsa_nr_tgts++;
3013                                 }
3014                         }
3015                 }
3016                 node = node->cy_next;
3017         }
3018
3019         if (prevp == &prev) {
3020                 rc = build_prev_component(layout, prevp, lsa, true);
3021                 if (rc)
3022                         return rc;
3023
3024                 if (!(lsa->lsa_comp_flags & LCME_FL_EXTENSION))
3025                         rc = build_component(layout, lsa, *layout != NULL);
3026         }
3027
3028         return rc;
3029 }
3030
3031 static int lfs_comp_create_from_yaml(char *template,
3032                                      struct llapi_layout **layout,
3033                                      struct lfs_setstripe_args *lsa,
3034                                      __u32 *osts)
3035 {
3036         struct cYAML *tree = NULL, *err_rc = NULL;
3037         int rc = 0;
3038
3039         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
3040         if (!tree) {
3041                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
3042                         progname, template);
3043                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
3044                                   "can't parse", &err_rc);
3045                 cYAML_print_tree2file(stderr, err_rc);
3046                 cYAML_free_tree(err_rc);
3047                 rc = -EINVAL;
3048                 goto err;
3049         }
3050
3051         /* initialize lsa for plain file */
3052         setstripe_args_init(lsa);
3053         lsa->lsa_tgts = osts;
3054
3055         rc = build_layout_from_yaml_node(tree, layout, lsa, NULL);
3056         if (rc) {
3057                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
3058                         progname, template);
3059                 goto err;
3060         }
3061         /* clean clean lsa */
3062         setstripe_args_init(lsa);
3063
3064 err:
3065         if (tree)
3066                 cYAML_free_tree(tree);
3067         return rc;
3068 }
3069
3070 /**
3071  * Get the extension size from the next (SEL) component and extend the
3072  * current component on it. The start of the next component is to be
3073  * adjusted as well.
3074  *
3075  * \param[in] layout    the current layout
3076  * \param[in] start     the start of the current component
3077  * \param[in,out] end   the end of the current component
3078  * \param[in] offset    the offset to adjust the end position to instead of
3079  *                      extension size
3080  *
3081  * \retval 0            - extended successfully
3082  * \retval < 0          - error
3083  */
3084 static int layout_extend_comp(struct llapi_layout *layout,
3085                               uint64_t start, uint64_t *end,
3086                               uint64_t offset)
3087 {
3088         uint64_t size, next_start, next_end;
3089         int rc;
3090
3091         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_NEXT);
3092         if (rc < 0) {
3093                 fprintf(stderr,
3094                         "%s setstripe: cannot move component cursor: %s\n",
3095                         progname, strerror(errno));
3096                 return rc;
3097         }
3098
3099         /*
3100          * Even if the @size will not be used below, this will fail if
3101          * this is not a SEL component - a good confirmation we are
3102          * working on right components.
3103          */
3104         rc = llapi_layout_extension_size_get(layout, &size);
3105         if (rc < 0) {
3106                 fprintf(stderr,
3107                         "%s setstripe: cannot get component ext size: %s\n",
3108                         progname, strerror(errno));
3109                 return rc;
3110         }
3111
3112         rc = llapi_layout_comp_extent_get(layout, &next_start, &next_end);
3113         if (rc) {
3114                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3115                         progname, strerror(errno));
3116                 return rc;
3117         }
3118
3119         next_start += offset ?: size;
3120         rc = llapi_layout_comp_extent_set(layout, next_start, next_end);
3121         if (rc) {
3122                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
3123                         progname, strerror(errno));
3124                 return rc;
3125         }
3126
3127         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_PREV);
3128         if (rc < 0) {
3129                 fprintf(stderr,
3130                         "%s setstripe: cannot move component cursor: %s\n",
3131                         progname, strerror(errno));
3132                 return rc;
3133         }
3134
3135         *end += offset ?: size;
3136         rc = llapi_layout_comp_extent_set(layout, start, *end);
3137         if (rc) {
3138                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
3139                         progname, strerror(errno));
3140                 return rc;
3141         }
3142
3143         return 0;
3144 }
3145
3146 /**
3147  * In 'lfs setstripe --component-add' mode, we need to fetch the extent
3148  * end of the last component in the existing file, and adjust the
3149  * first extent start of the components to be added accordingly.
3150  *
3151  * In the create mode, we need to check if the first component is an extendable
3152  * SEL component and extend its length to the extension size (first component
3153  * of the PFL file is initialised at the create time, cannot be 0-lenght.
3154  */
3155 static int layout_adjust_first_extent(char *fname, struct llapi_layout *layout,
3156                                       bool comp_add)
3157 {
3158         struct llapi_layout *head;
3159         uint64_t start = 0, prev_end = 0;
3160         uint64_t end;
3161         int rc, ret = 0;
3162
3163         if (!layout || !(comp_add || llapi_layout_is_composite(layout)))
3164                 return 0;
3165
3166         errno = 0;
3167         while (comp_add) {
3168                 head = llapi_layout_get_by_path(fname, 0);
3169                 if (!head) {
3170                         fprintf(stderr,
3171                                 "%s setstripe: cannot read layout from '%s': %s\n",
3172                                 progname, fname, strerror(errno));
3173                         return -EINVAL;
3174                 } else if (errno == ENODATA) {
3175                         /*
3176                          * file without LOVEA, this component-add will be turned
3177                          * into a component-create.
3178                          */
3179                         llapi_layout_free(head);
3180                         ret = -ENODATA;
3181
3182                         /*
3183                          * the new layout will be added to an empty one, it
3184                          * still needs to be adjusted below
3185                          */
3186                         comp_add = 0;
3187                         break;
3188                 } else if (!llapi_layout_is_composite(head)) {
3189                         fprintf(stderr,
3190                                 "%s setstripe: '%s' not a composite file\n",
3191                                 progname, fname);
3192                         llapi_layout_free(head);
3193                         return -EINVAL;
3194                 }
3195
3196                 rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
3197                 if (rc) {
3198                         fprintf(stderr,
3199                                 "%s setstripe: cannot get prev extent: %s\n",
3200                                 progname, strerror(errno));
3201                         llapi_layout_free(head);
3202                         return rc;
3203                 }
3204
3205                 llapi_layout_free(head);
3206                 break;
3207         }
3208
3209         /* Make sure we use the first component of the layout to be added. */
3210         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
3211         if (rc < 0) {
3212                 fprintf(stderr,
3213                         "%s setstripe: cannot move component cursor: %s\n",
3214                         progname, strerror(errno));
3215                 return rc;
3216         }
3217
3218         rc = llapi_layout_comp_extent_get(layout, &start, &end);
3219         if (rc) {
3220                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
3221                         progname, strerror(errno));
3222                 return rc;
3223         }
3224
3225         if (start == 0 && end == 0) {
3226                 rc = layout_extend_comp(layout, start, &end,
3227                                         comp_add ? prev_end : 0);
3228                 if (rc)
3229                         return rc;
3230         }
3231
3232         if (start > prev_end || end < prev_end) {
3233                 fprintf(stderr,
3234                         "%s setstripe: first extent [%lu, %lu) not adjacent with extent end %lu\n",
3235                         progname, start, end, prev_end);
3236                 return -EINVAL;
3237         }
3238
3239         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
3240         if (rc) {
3241                 fprintf(stderr,
3242                         "%s setstripe: cannot set component extent [%lu, %lu): %s\n",
3243                         progname, prev_end, end, strerror(errno));
3244                 return rc;
3245         }
3246
3247         return ret;
3248 }
3249
3250 static int mirror_adjust_first_extents(struct mirror_args *list)
3251 {
3252         int rc = 0;
3253
3254         if (!list)
3255                 return 0;
3256
3257         while (list) {
3258                 rc = layout_adjust_first_extent(NULL, list->m_layout, false);
3259                 if (rc)
3260                         break;
3261                 list = list->m_next;
3262         }
3263
3264         return rc;
3265 }
3266
3267 static inline bool arg_is_eof(char *arg)
3268 {
3269         return !strncmp(arg, "-1", strlen("-1")) ||
3270                !strncmp(arg, "EOF", strlen("EOF")) ||
3271                !strncmp(arg, "eof", strlen("eof"));
3272 }
3273
3274 /**
3275  * lfs_mirror_alloc() - Allocate a mirror argument structure.
3276  *
3277  * Return: Valid mirror_args pointer on success and
3278  *         NULL if memory allocation fails.
3279  */
3280 static struct mirror_args *lfs_mirror_alloc(void)
3281 {
3282         struct mirror_args *mirror = NULL;
3283
3284         while (1) {
3285                 mirror = calloc(1, sizeof(*mirror));
3286                 if (mirror) {
3287                         mirror->m_inherit = false;
3288                         break;
3289                 }
3290
3291                 sleep(1);
3292         }
3293
3294         return mirror;
3295 }
3296
3297 /**
3298  * lfs_mirror_free() - Free memory allocated for a mirror argument
3299  *                     structure.
3300  * @mirror: Previously allocated mirror argument structure by
3301  *          lfs_mirror_alloc().
3302  *
3303  * Free memory allocated for @mirror.
3304  *
3305  * Return: void.
3306  */
3307 static void lfs_mirror_free(struct mirror_args *mirror)
3308 {
3309         if (mirror->m_layout)
3310                 llapi_layout_free(mirror->m_layout);
3311         free(mirror);
3312 }
3313
3314 /**
3315  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
3316  * @mirror_list: Previously allocated mirror list.
3317  *
3318  * Free memory allocated for @mirror_list.
3319  *
3320  * Return: void.
3321  */
3322 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
3323 {
3324         struct mirror_args *next_mirror = NULL;
3325
3326         while (mirror_list) {
3327                 next_mirror = mirror_list->m_next;
3328                 lfs_mirror_free(mirror_list);
3329                 mirror_list = next_mirror;
3330         }
3331 }
3332
3333 enum {
3334         LFS_SETQUOTA_DELETE = 1,
3335         LFS_POOL_OPT = 3,
3336         LFS_COMP_COUNT_OPT,
3337         LFS_COMP_START_OPT,
3338         LFS_COMP_FLAGS_OPT,
3339         LFS_COMP_DEL_OPT,
3340         LFS_COMP_SET_OPT,
3341         LFS_COMP_ADD_OPT,
3342         LFS_COMP_NO_VERIFY_OPT,
3343         LFS_PROJID_OPT,
3344         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
3345         LFS_MIRROR_ID_OPT,
3346         LFS_MIRROR_STATE_OPT,
3347         LFS_LAYOUT_COPY,
3348         LFS_MIRROR_INDEX_OPT,
3349         LFS_LAYOUT_FOREIGN_OPT,
3350         LFS_MODE_OPT,
3351         LFS_NEWERXY_OPT,
3352         LFS_INHERIT_RR_OPT,
3353         LFS_FIND_PERM,
3354         LFS_PRINTF_OPT,
3355 };
3356
3357 #ifndef LCME_USER_MIRROR_FLAGS
3358 /* The mirror flags can be set by users at creation time. */
3359 #define LCME_USER_MIRROR_FLAGS  (LCME_FL_PREF_RW)
3360 #endif
3361
3362 /* functions */
3363 static int lfs_setstripe_internal(int argc, char **argv,
3364                                   enum setstripe_origin opc)
3365 {
3366         struct lfs_setstripe_args        lsa = { 0 };
3367         struct llapi_stripe_param       *param = NULL;
3368         struct find_param                migrate_mdt_param = {
3369                 .fp_max_depth = -1,
3370                 .fp_mdt_index = -1,
3371         };
3372         char                            *fname;
3373         int                              result = 0;
3374         int                              result2 = 0;
3375         char                            *end;
3376         int                              c;
3377         int                              delete = 0;
3378         unsigned long long               size_units = 1;
3379         bool                             migrate_mode = false;
3380         bool                             migrate_mdt_mode = false;
3381         bool                             setstripe_mode = false;
3382         bool                             migration_block = false;
3383         __u64                            migration_flags = 0;
3384         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
3385         int                              comp_del = 0, comp_set = 0;
3386         int                              comp_add = 0;
3387         __u32                            comp_id = 0;
3388         struct llapi_layout             *layout = NULL;
3389         struct llapi_layout             **lpp = &layout;
3390         bool                             mirror_mode = false;
3391         bool                             has_m_file = false;
3392         __u32                            mirror_count = 0;
3393         enum mirror_flags                mirror_flags = 0;
3394         struct mirror_args              *mirror_list = NULL;
3395         struct mirror_args              *new_mirror = NULL;
3396         struct mirror_args              *last_mirror = NULL;
3397         __u16                            mirror_id = 0;
3398         char                             cmd[PATH_MAX];
3399         bool from_yaml = false;
3400         bool from_copy = false;
3401         char *template = NULL;
3402         bool foreign_mode = false;
3403         char *xattr = NULL;
3404         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
3405         char *mode_opt = NULL;
3406         mode_t previous_umask = 0;
3407         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
3408
3409         struct option long_opts[] = {
3410 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
3411 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3412         /* --block is only valid in migrate mode */
3413         { .val = 'b',   .name = "block",        .has_arg = no_argument },
3414 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
3415         { .val = LFS_COMP_ADD_OPT,
3416                         .name = "comp-add",     .has_arg = no_argument },
3417         { .val = LFS_COMP_ADD_OPT,
3418                         .name = "component-add", .has_arg = no_argument },
3419         { .val = LFS_COMP_DEL_OPT,
3420                         .name = "comp-del",     .has_arg = no_argument },
3421         { .val = LFS_COMP_DEL_OPT,
3422                         .name = "component-del", .has_arg = no_argument },
3423         { .val = LFS_COMP_FLAGS_OPT,
3424                         .name = "comp-flags",   .has_arg = required_argument },
3425         { .val = LFS_COMP_FLAGS_OPT,
3426                         .name = "component-flags",
3427                                                 .has_arg = required_argument },
3428         { .val = LFS_COMP_SET_OPT,
3429                         .name = "comp-set",     .has_arg = no_argument },
3430         { .val = LFS_COMP_SET_OPT,
3431                         .name = "component-set",
3432                                                 .has_arg = no_argument},
3433         { .val = LFS_COMP_NO_VERIFY_OPT,
3434                         .name = "no-verify",    .has_arg = no_argument},
3435         { .val = LFS_LAYOUT_FLAGS_OPT,
3436                         .name = "flags",        .has_arg = required_argument},
3437         { .val = LFS_LAYOUT_FOREIGN_OPT,
3438                         .name = "foreign",      .has_arg = optional_argument},
3439         { .val = LFS_MIRROR_ID_OPT,
3440                         .name = "mirror-id",    .has_arg = required_argument},
3441         { .val = LFS_MODE_OPT,
3442                         .name = "mode",         .has_arg = required_argument},
3443         { .val = LFS_LAYOUT_COPY,
3444                         .name = "copy",         .has_arg = required_argument},
3445         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
3446         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
3447         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
3448         { .val = 'C',   .name = "overstripe-count",
3449                                                 .has_arg = required_argument},
3450         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
3451         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
3452         /* used with "lfs migrate -m" */
3453         { .val = 'd',   .name = "directory",    .has_arg = no_argument},
3454         /* --non-direct is only valid in migrate mode */
3455         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
3456         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
3457         { .val = 'E',   .name = "component-end",
3458                                                 .has_arg = required_argument},
3459         { .val = 'f',   .name = "file",         .has_arg = required_argument },
3460 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3461 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
3462 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3463         { .val = 'h',   .name = "help",         .has_arg = no_argument },
3464         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
3465         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
3466         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
3467         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
3468         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
3469 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
3470         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3471         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
3472         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
3473         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
3474         /* --non-block is only valid in migrate mode */
3475         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
3476         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
3477         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
3478 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3479         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
3480         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
3481 #endif
3482         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3483 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3484 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3485 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3486         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3487         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3488 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3489 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3490 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3491 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3492         /* --verbose is only valid in migrate mode */
3493         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
3494         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
3495 /* dirstripe { .val = 'X',.name = "max-inherit",.has_arg = required_argument }*/
3496         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
3497         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument},
3498         { .val = 'z',   .name = "extension-size", .has_arg = required_argument},
3499         { .name = NULL } };
3500
3501         setstripe_args_init(&lsa);
3502
3503         migrate_mode = (opc == SO_MIGRATE);
3504         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
3505         setstripe_mode = (opc == SO_SETSTRIPE);
3506         if (opc == SO_MIRROR_DELETE) {
3507                 delete = 1;
3508                 mirror_flags = MF_DESTROY;
3509         }
3510
3511         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
3512         progname = cmd;
3513         while ((c = getopt_long(argc, argv,
3514                                 "bc:C:dDE:f:hH:i:I:m:N::no:p:L:s:S:vx:y:z:",
3515                                 long_opts, NULL)) >= 0) {
3516                 size_units = 1;
3517                 switch (c) {
3518                 case 0:
3519                         /* Long options. */
3520                         break;
3521                 case LFS_COMP_ADD_OPT:
3522                         comp_add = 1;
3523                         break;
3524                 case LFS_COMP_DEL_OPT:
3525                         comp_del = 1;
3526                         break;
3527                 case LFS_COMP_FLAGS_OPT:
3528                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
3529                                                 &lsa.lsa_comp_neg_flags);
3530                         if (result != 0)
3531                                 goto usage_error;
3532                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
3533                                 fprintf(stderr,
3534                                         "%s: inverted flags are not supported\n",
3535                                         progname);
3536                                 goto usage_error;
3537                         }
3538                         break;
3539                 case LFS_COMP_SET_OPT:
3540                         comp_set = 1;
3541                         break;
3542                 case LFS_COMP_NO_VERIFY_OPT:
3543                         mirror_flags |= MF_NO_VERIFY;
3544                         break;
3545                 case LFS_MIRROR_ID_OPT: {
3546                         unsigned long int id;
3547
3548                         errno = 0;
3549                         id = strtoul(optarg, &end, 0);
3550                         if (errno != 0 || *end != '\0' || id == 0 ||
3551                             id > UINT16_MAX) {
3552                                 fprintf(stderr,
3553                                         "%s %s: invalid mirror ID '%s'\n",
3554                                         progname, argv[0], optarg);
3555                                 goto usage_error;
3556                         }
3557
3558                         mirror_id = (__u16)id;
3559                         break;
3560                 }
3561                 case LFS_LAYOUT_FLAGS_OPT: {
3562                         uint32_t neg_flags;
3563
3564                         /* check for numeric flags (foreign and mirror cases) */
3565                         if (setstripe_mode && !mirror_mode && !last_mirror) {
3566                                 errno = 0;
3567                                 flags = strtoul(optarg, &end, 16);
3568                                 if (errno != 0 || *end != '\0' ||
3569                                     flags >= UINT32_MAX) {
3570                                         fprintf(stderr,
3571                                                 "%s %s: invalid hex flags '%s'\n",
3572                                                 progname, argv[0], optarg);
3573                                         return CMD_HELP;
3574                                 }
3575                                 if (!foreign_mode) {
3576                                         fprintf(stderr,
3577                                                 "%s %s: hex flags must be specified with --foreign option\n",
3578                                                 progname, argv[0]);
3579                                         return CMD_HELP;
3580                                 }
3581                                 break;
3582                         }
3583
3584                         if (!mirror_mode || !last_mirror) {
3585                                 fprintf(stderr,
3586                                         "error: %s: --flags must be specified with --mirror-count|-N option\n",
3587                                         progname);
3588                                 goto usage_error;
3589                         }
3590
3591                         result = comp_str2flags(optarg, &last_mirror->m_flags,
3592                                                 &neg_flags);
3593                         if (result != 0)
3594                                 goto usage_error;
3595
3596                         if (neg_flags) {
3597                                 fprintf(stderr,
3598                                         "%s: inverted flags are not supported\n",
3599                                         progname);
3600                                 result = -EINVAL;
3601                                 goto usage_error;
3602                         }
3603                         if (last_mirror->m_flags & ~LCME_USER_MIRROR_FLAGS) {
3604                                 fprintf(stderr,
3605                                         "%s: unsupported mirror flags: %s\n",
3606                                         progname, optarg);
3607                                 result = -EINVAL;
3608                                 goto error;
3609                         }
3610                         break;
3611                 }
3612                 case LFS_LAYOUT_FOREIGN_OPT:
3613                         if (optarg) {
3614                                 /* check pure numeric */
3615                                 type = strtoul(optarg, &end, 0);
3616                                 if (*end) {
3617                                         /* check name */
3618                                         type = check_foreign_type_name(optarg);
3619                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
3620                                                 fprintf(stderr,
3621                                                         "%s %s: unrecognized foreign type '%s'\n",
3622                                                         progname, argv[0],
3623                                                         optarg);
3624                                                 return CMD_HELP;
3625                                         }
3626                                 } else if (type >= UINT32_MAX) {
3627                                         fprintf(stderr,
3628                                                 "%s %s: invalid foreign type '%s'\n",
3629                                                 progname, argv[0], optarg);
3630                                         return CMD_HELP;
3631                                 }
3632                         }
3633                         foreign_mode = true;
3634                         break;
3635                 case LFS_MODE_OPT:
3636                         mode_opt = optarg;
3637                         if (mode_opt) {
3638                                 mode = strtoul(mode_opt, &end, 8);
3639                                 if (*end != '\0') {
3640                                         fprintf(stderr,
3641                                                 "%s %s: bad mode '%s'\n",
3642                                                 progname, argv[0], mode_opt);
3643                                         return CMD_HELP;
3644                                 }
3645                                 previous_umask = umask(0);
3646                         }
3647                         break;
3648                 case LFS_LAYOUT_COPY:
3649                         from_copy = true;
3650                         template = optarg;
3651                         break;
3652                 case 'b':
3653                         if (!migrate_mode) {
3654                                 fprintf(stderr,
3655                                         "%s %s: -b|--block valid only for migrate command\n",
3656                                         progname, argv[0]);
3657                                 goto usage_error;
3658                         }
3659                         migration_block = true;
3660                         break;
3661                 case 'C':
3662                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3663                                 fprintf(stderr,
3664                                         "%s %s: -C|--overstripe-count incompatible with DoM layout\n",
3665                                         progname, argv[0]);
3666                                 goto usage_error;
3667                         }
3668                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3669                         fallthrough;
3670                 case 'c':
3671                         errno = 0;
3672                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3673                         if (errno != 0 || *end != '\0'||
3674                             lsa.lsa_stripe_count < -1 ||
3675                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
3676                                 fprintf(stderr,
3677                                         "%s %s: invalid stripe count '%s'\n",
3678                                         progname, argv[0], optarg);
3679                                 goto usage_error;
3680                         }
3681
3682                         if (lsa.lsa_stripe_count == -1)
3683                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
3684                         break;
3685                 case 'd':
3686                         if (migrate_mode) {
3687                                 migrate_mdt_param.fp_max_depth = 1;
3688                         } else {
3689                                 /* delete the default striping pattern */
3690                                 delete = 1;
3691                                 if (opc == SO_MIRROR_SPLIT) {
3692                                         if (has_m_file) {
3693                                                 fprintf(stderr,
3694                                                       "%s %s: -d cannot used with -f\n",
3695                                                         progname, argv[0]);
3696                                                 goto usage_error;
3697                                         }
3698                                         mirror_flags |= MF_DESTROY;
3699                                 }
3700                         }
3701                         break;
3702                 case 'D':
3703                         if (!migrate_mode) {
3704                                 fprintf(stderr,
3705                                         "%s %s: -D|--non-direct is valid only for migrate command\n",
3706                                         progname, argv[0]);
3707                                 goto usage_error;
3708                         }
3709                         migration_flags |= LLAPI_MIGRATION_NONDIRECT;
3710                         break;
3711                 case 'E':
3712                         if (lsa.lsa_comp_end != 0) {
3713                                 result = comp_args_to_layout(lpp, &lsa, true);
3714                                 if (result) {
3715                                         fprintf(stderr, "%s: invalid layout\n",
3716                                                 progname);
3717                                         goto usage_error;
3718                                 }
3719
3720                                 setstripe_args_init_inherit(&lsa);
3721                         }
3722
3723                         if (arg_is_eof(optarg)) {
3724                                 lsa.lsa_comp_end = LUSTRE_EOF;
3725                         } else {
3726                                 result = llapi_parse_size(optarg,
3727                                                           &lsa.lsa_comp_end,
3728                                                           &size_units, 0);
3729                                 /* assume units of KB if too small */
3730                                 if (lsa.lsa_comp_end < 4096)
3731                                         lsa.lsa_comp_end *= 1024;
3732                                 if (result ||
3733                                     lsa.lsa_comp_end & (LOV_MIN_STRIPE_SIZE - 1)) {
3734                                         fprintf(stderr,
3735                                                 "%s %s: invalid component end '%s'\n",
3736                                                 progname, argv[0], optarg);
3737                                         goto usage_error;
3738                                 }
3739                         }
3740                         break;
3741                 case 'H':
3742                         if (!migrate_mode) {
3743                                 fprintf(stderr,
3744                                         "--mdt-hash is valid only for migrate command\n");
3745                                 return CMD_HELP;
3746                         }
3747
3748                         lsa.lsa_pattern = check_hashtype(optarg);
3749                         if (lsa.lsa_pattern == 0) {
3750                                 fprintf(stderr,
3751                                         "%s %s: bad stripe hash type '%s'\n",
3752                                         progname, argv[0], optarg);
3753                                 return CMD_HELP;
3754                         }
3755                         break;
3756                 case 'i':
3757                         errno = 0;
3758                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3759                         if (errno != 0 || *end != '\0' ||
3760                             lsa.lsa_stripe_off < -1 ||
3761                             lsa.lsa_stripe_off > LOV_V1_INSANE_STRIPE_COUNT) {
3762                                 fprintf(stderr,
3763                                         "%s %s: invalid stripe offset '%s'\n",
3764                                         progname, argv[0], optarg);
3765                                 goto usage_error;
3766                         }
3767                         if (lsa.lsa_stripe_off == -1)
3768                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3769                         break;
3770                 case 'I':
3771                         comp_id = strtoul(optarg, &end, 0);
3772                         if (*end != '\0' || comp_id == 0 ||
3773                             comp_id > LCME_ID_MAX) {
3774                                 fprintf(stderr,
3775                                         "%s %s: invalid component ID '%s'\n",
3776                                         progname, argv[0], optarg);
3777                                 goto usage_error;
3778                         }
3779                         break;
3780                 case 'f':
3781                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3782                                 fprintf(stderr,
3783                                         "error: %s: invalid option: %s\n",
3784                                         progname, argv[optopt + 1]);
3785                                 goto usage_error;
3786                         }
3787                         if (opc == SO_MIRROR_EXTEND) {
3788                                 if (!last_mirror) {
3789                                         fprintf(stderr,
3790                                 "error: %s: '-N' must exist in front of '%s'\n",
3791                                                 progname, argv[optopt + 1]);
3792                                         goto usage_error;
3793                                 }
3794                                 last_mirror->m_file = optarg;
3795                                 last_mirror->m_count = 1;
3796                         } else {
3797                                 /* mirror split */
3798                                 if (!mirror_list)
3799                                         mirror_list = lfs_mirror_alloc();
3800                                 mirror_list->m_file = optarg;
3801                         }
3802                         has_m_file = true;
3803                         break;
3804                 case 'L':
3805                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3806                                 /* Can be only the first component */
3807                                 if (layout) {
3808                                         result = -EINVAL;
3809                                         fprintf(stderr,
3810                                                 "error: 'mdt' layout can be only the first one\n");
3811                                         goto error;
3812                                 }
3813                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3814                                         result = -EFBIG;
3815                                         fprintf(stderr,
3816                                                 "error: 'mdt' layout size is too big\n");
3817                                         goto error;
3818                                 }
3819                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3820                                 lsa.lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
3821                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3822                                 result = -EINVAL;
3823                                 fprintf(stderr,
3824                                         "error: layout '%s' is unknown, supported layouts are: 'mdt', 'raid0'\n",
3825                                         argv[optind]);
3826                                 goto error;
3827                         }
3828                         break;
3829                 case 'm':
3830                         if (!migrate_mode) {
3831                                 fprintf(stderr,
3832                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3833                                         progname, argv[0]);
3834                                 goto usage_error;
3835                         }
3836                         migrate_mdt_mode = true;
3837                         lsa.lsa_nr_tgts = parse_targets(tgts,
3838                                                 sizeof(tgts) / sizeof(__u32),
3839                                                 lsa.lsa_nr_tgts, optarg, NULL);
3840                         if (lsa.lsa_nr_tgts < 0) {
3841                                 fprintf(stderr,
3842                                         "%s: invalid MDT target(s) '%s'\n",
3843                                         progname, optarg);
3844                                 goto usage_error;
3845                         }
3846
3847                         lsa.lsa_tgts = tgts;
3848                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3849                                 lsa.lsa_stripe_off = tgts[0];
3850                         break;
3851                 case 'n':
3852                         if (!migrate_mode) {
3853                                 fprintf(stderr,
3854                                         "%s %s: -n|--non-block valid only for migrate command\n",
3855                                         progname, argv[0]);
3856                                 goto usage_error;
3857                         }
3858                         migration_flags |= LLAPI_MIGRATION_NONBLOCK;
3859                         break;
3860                 case 'N':
3861                         if (opc == SO_SETSTRIPE) {
3862                                 opc = SO_MIRROR_CREATE;
3863                                 mirror_mode = true;
3864                         }
3865                         mirror_count = 1;
3866                         if (optarg) {
3867                                 errno = 0;
3868                                 mirror_count = strtoul(optarg, &end, 0);
3869                                 if (errno != 0 || *end != '\0' ||
3870                                     mirror_count == 0 ||
3871                                     mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
3872                                         fprintf(stderr,
3873                                                 "error: %s: bad mirror count: %s\n",
3874                                                 progname, optarg);
3875                                         result = -EINVAL;
3876                                         goto error;
3877                                 }
3878                         }
3879
3880                         new_mirror = lfs_mirror_alloc();
3881                         new_mirror->m_count = mirror_count;
3882
3883                         if (!mirror_list)
3884                                 mirror_list = new_mirror;
3885
3886                         if (last_mirror) {
3887                                 /* wrap up last mirror */
3888                                 if (!setstripe_args_specified(&lsa))
3889                                         last_mirror->m_inherit = true;
3890                                 if (lsa.lsa_comp_end == 0)
3891                                         lsa.lsa_comp_end = LUSTRE_EOF;
3892
3893                                 result = comp_args_to_layout(lpp, &lsa, true);
3894                                 if (result) {
3895                                         lfs_mirror_free(new_mirror);
3896                                         goto error;
3897                                 }
3898
3899                                 setstripe_args_init_inherit(&lsa);
3900
3901                                 last_mirror->m_next = new_mirror;
3902                         }
3903
3904                         last_mirror = new_mirror;
3905                         lpp = &last_mirror->m_layout;
3906                         break;
3907                 case 'o':
3908 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3909                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
3910                                 fprintf(stderr,
3911                                         "warning: '--ost-list' is deprecated, use '--ost' instead\n");
3912 #endif
3913                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3914                                 fprintf(stderr,
3915                                         "%s %s: -o|--ost incompatible with DoM layout\n",
3916                                         progname, argv[0]);
3917                                 goto usage_error;
3918                         }
3919                         /*
3920                          * -o allows overstriping, and must note it because
3921                          * parse_targets is shared with MDT striping, which
3922                          * does not allow duplicates
3923                          */
3924                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3925                         lsa.lsa_nr_tgts = parse_targets(tgts,
3926                                                 sizeof(tgts) / sizeof(__u32),
3927                                                 lsa.lsa_nr_tgts, optarg,
3928                                                 &lsa.lsa_pattern);
3929                         if (lsa.lsa_nr_tgts < 0) {
3930                                 fprintf(stderr,
3931                                         "%s %s: invalid OST target(s) '%s'\n",
3932                                         progname, argv[0], optarg);
3933                                 goto usage_error;
3934                         }
3935
3936                         lsa.lsa_tgts = tgts;
3937                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3938                                 lsa.lsa_stripe_off = tgts[0];
3939                         break;
3940                 case 'p':
3941                         if (!optarg)
3942                                 goto usage_error;
3943                         lsa.lsa_pool_name = optarg;
3944
3945                         if (strlen(lsa.lsa_pool_name) == 0 ||
3946                             strncmp(lsa.lsa_pool_name, "none",
3947                                     LOV_MAXPOOLNAME) == 0)
3948                                 lsa.lsa_pool_name = NULL;
3949                         break;
3950                 case 'S':
3951                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3952                                                   &size_units, 0);
3953                         /* assume units of KB if too small to be valid */
3954                         if (lsa.lsa_stripe_size < 4096)
3955                                 lsa.lsa_stripe_size *= 1024;
3956                         if (result ||
3957                             lsa.lsa_stripe_size & (LOV_MIN_STRIPE_SIZE - 1)) {
3958                                 fprintf(stderr,
3959                                         "%s %s: invalid stripe size '%s'\n",
3960                                         progname, argv[0], optarg);
3961                                 goto usage_error;
3962                         }
3963                         break;
3964                 case 'v':
3965                         if (!migrate_mode) {
3966                                 fprintf(stderr,
3967                                         "%s %s: -v|--verbose valid only for migrate command\n",
3968                                         progname, argv[0]);
3969                                 goto usage_error;
3970                         }
3971                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3972                         migration_flags = LLAPI_MIGRATION_VERBOSE;
3973                         break;
3974                 case 'x':
3975                         xattr = optarg;
3976                         break;
3977                 case 'y':
3978                         from_yaml = true;
3979                         template = optarg;
3980                         break;
3981                 case 'z':
3982                         result = llapi_parse_size(optarg,
3983                                                   &lsa.lsa_extension_size,
3984                                                   &size_units, 0);
3985                         if (result) {
3986                                 fprintf(stderr,
3987                                         "%s %s: invalid extension size '%s'\n",
3988                                         progname, argv[0], optarg);
3989                                 goto usage_error;
3990                         }
3991
3992                         lsa.lsa_extension_comp = true;
3993                         break;
3994                 default:
3995                         fprintf(stderr, "%s: unrecognized option '%s'\n",
3996                                 progname, argv[optind - 1]);
3997                 case 'h':
3998                         goto usage_error;
3999                 }
4000         }
4001
4002         fname = argv[optind];
4003
4004         if (optind == argc) {
4005                 fprintf(stderr, "%s %s: FILE must be specified\n",
4006                         progname, argv[0]);
4007                 goto usage_error;
4008         }
4009
4010         /* lfs migrate $filename should keep the file's layout by default */
4011         if (migrate_mode && !layout && !from_yaml &&
4012             !setstripe_args_specified(&lsa) && !lsa.lsa_pool_name)
4013                 from_copy = true;
4014
4015         if (xattr && !foreign_mode) {
4016                 /*
4017                  * only print a warning as this is harmless and will be ignored
4018                  */
4019                 fprintf(stderr,
4020                         "%s %s: xattr has been specified for non-foreign layout\n",
4021                         progname, argv[0]);
4022         } else if (foreign_mode && !xattr) {
4023                 fprintf(stderr,
4024                         "%s %s: xattr must be provided in foreign mode\n",
4025                         progname, argv[0]);
4026                 goto usage_error;
4027         }
4028
4029         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
4030             comp_set || comp_id || delete || from_copy ||
4031             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
4032             lsa.lsa_tgts)) {
4033                 fprintf(stderr,
4034                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
4035                         progname, argv[0]);
4036                 return CMD_HELP;
4037         }
4038
4039         if (mirror_mode && mirror_count == 0) {
4040                 fprintf(stderr,
4041                         "error: %s: --mirror-count|-N option is required\n",
4042                         progname);
4043                 result = -EINVAL;
4044                 goto error;
4045         }
4046
4047         if (mirror_mode) {
4048                 if (!setstripe_args_specified(&lsa))
4049                         last_mirror->m_inherit = true;
4050                 if (lsa.lsa_comp_end == 0)
4051                         lsa.lsa_comp_end = LUSTRE_EOF;
4052         }
4053
4054         if (lsa.lsa_comp_end != 0) {
4055                 result = comp_args_to_layout(lpp, &lsa, true);
4056                 if (result) {
4057                         fprintf(stderr, "error: %s: invalid layout\n",
4058                                 progname);
4059                         result = -EINVAL;
4060                         goto error;
4061                 }
4062         }
4063
4064         if (mirror_flags & MF_NO_VERIFY) {
4065                 if (opc != SO_MIRROR_EXTEND) {
4066                         fprintf(stderr,
4067                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
4068                                 progname);
4069                         result = -EINVAL;
4070                         goto error;
4071                 } else if (!has_m_file) {
4072                         fprintf(stderr,
4073                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
4074                                 progname);
4075                         result = -EINVAL;
4076                         goto error;
4077                 }
4078         }
4079
4080         if (comp_set && !comp_id && !lsa.lsa_pool_name) {
4081                 fprintf(stderr,
4082                         "%s %s: --component-set doesn't have component-id set\n",
4083                         progname, argv[0]);
4084                 goto usage_error;
4085         }
4086
4087         if ((delete + comp_set + comp_del + comp_add) > 1) {
4088                 fprintf(stderr,
4089                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
4090                         progname, argv[0]);
4091                 goto usage_error;
4092         }
4093
4094         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
4095                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
4096                 fprintf(stderr,
4097                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
4098                         progname, argv[0]);
4099                 goto usage_error;
4100         }
4101
4102         if ((comp_set || comp_del) &&
4103             (setstripe_args_specified(&lsa) || layout != NULL)) {
4104                 fprintf(stderr,
4105                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
4106                         progname, argv[0]);
4107                 goto usage_error;
4108         }
4109
4110         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
4111                 fprintf(stderr,
4112                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
4113                         progname, argv[0]);
4114                 goto usage_error;
4115         }
4116
4117         if (comp_add || comp_del) {
4118                 struct stat st;
4119
4120                 result = lstat(fname, &st);
4121                 if (result == 0 && S_ISDIR(st.st_mode)) {
4122                         fprintf(stderr,
4123                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
4124                                 progname);
4125                         goto usage_error;
4126                 }
4127
4128                 if (mirror_mode) {
4129                         fprintf(stderr,
4130                                 "error: %s: can't use --component-add or --component-del for mirror operation\n",
4131                                 progname);
4132                         goto usage_error;
4133                 }
4134         }
4135
4136         if (comp_add) {
4137                 if (!layout) {
4138                         fprintf(stderr,
4139                                 "%s %s: option -E must be specified with --component-add\n",
4140                                 progname, argv[0]);
4141                         goto usage_error;
4142                 }
4143         }
4144
4145         if (from_yaml && from_copy) {
4146                 fprintf(stderr,
4147                         "%s: can't specify --yaml and --copy together\n",
4148                         progname);
4149                 goto error;
4150         }
4151
4152         if ((from_yaml || from_copy) &&
4153             (setstripe_args_specified(&lsa) || layout != NULL)) {
4154                 fprintf(stderr,
4155                         "error: %s: can't specify --yaml or --copy with -c, -S, -i, -o, -p or -E options.\n",
4156                         argv[0]);
4157                 goto error;
4158         }
4159
4160         if ((migration_flags & LLAPI_MIGRATION_NONBLOCK) && migration_block) {
4161                 fprintf(stderr,
4162                         "%s %s: options --non-block and --block are mutually exclusive\n",
4163                         progname, argv[0]);
4164                 goto usage_error;
4165         }
4166
4167         if (!comp_del && !comp_set && opc != SO_MIRROR_SPLIT &&
4168             opc != SO_MIRROR_DELETE && comp_id != 0) {
4169                 fprintf(stderr,
4170                         "%s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
4171                         progname);
4172                 goto usage_error;
4173         }
4174
4175         if (migrate_mdt_mode) {
4176                 struct lmv_user_md *lmu;
4177
4178                 /* initialize migrate mdt parameters */
4179                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
4180                                                  LMV_USER_MAGIC_SPECIFIC));
4181                 if (!lmu) {
4182                         fprintf(stderr,
4183                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
4184                                 progname, argv[0], strerror(ENOMEM));
4185                         result = -ENOMEM;
4186                         goto error;
4187                 }
4188                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
4189                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
4190                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
4191                         fprintf(stderr,
4192                                 "%s %s: migrate should specify MDT index\n",
4193                                 progname, argv[0]);
4194                         free(lmu);
4195                         goto usage_error;
4196                 }
4197                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
4198                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
4199                         lmu->lum_hash_type = lsa.lsa_pattern;
4200                 else
4201                         lmu->lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
4202                 if (lsa.lsa_pool_name) {
4203                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
4204                                 sizeof(lmu->lum_pool_name) - 1);
4205                         lmu->lum_pool_name[sizeof(lmu->lum_pool_name) - 1] = 0;
4206                 }
4207                 if (lsa.lsa_nr_tgts > 1) {
4208                         int i;
4209
4210                         if (lsa.lsa_stripe_count > 0 &&
4211                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
4212                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
4213                                 fprintf(stderr,
4214                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
4215                                         progname, lsa.lsa_stripe_count,
4216                                         lsa.lsa_nr_tgts);
4217                                 free(lmu);
4218                                 goto usage_error;
4219                         }
4220
4221                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
4222                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
4223                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
4224                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
4225                 } else {
4226                         lmu->lum_magic = LMV_USER_MAGIC;
4227                 }
4228
4229                 migrate_mdt_param.fp_lmv_md = lmu;
4230                 migrate_mdt_param.fp_migrate = 1;
4231         } else if (!layout) {
4232                 if (lsa_args_stripe_count_check(&lsa))
4233                         goto usage_error;
4234
4235                 /* initialize stripe parameters */
4236                 param = calloc(1, offsetof(typeof(*param),
4237                                lsp_osts[lsa.lsa_nr_tgts]));
4238                 if (!param) {
4239                         fprintf(stderr,
4240                                 "%s %s: cannot allocate memory for parameters: %s\n",
4241                                 progname, argv[0], strerror(ENOMEM));
4242                         result = -ENOMEM;
4243                         goto error;
4244                 }
4245
4246                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
4247                         param->lsp_stripe_size = lsa.lsa_stripe_size;
4248                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
4249                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
4250                                 param->lsp_stripe_count = -1;
4251                         else
4252                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
4253                 }
4254                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
4255                         param->lsp_stripe_offset = -1;
4256                 else
4257                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
4258                 param->lsp_stripe_pattern =
4259                                 llapi_pattern_to_lov(lsa.lsa_pattern);
4260                 if (param->lsp_stripe_pattern == EINVAL) {
4261                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
4262                                 argv[0]);
4263                         free(param);
4264                         goto usage_error;
4265                 }
4266                 param->lsp_pool = lsa.lsa_pool_name;
4267                 param->lsp_is_specific = false;
4268
4269                 if (lsa.lsa_nr_tgts > 0) {
4270                         param->lsp_is_specific = true;
4271                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
4272                         memcpy(param->lsp_osts, tgts,
4273                                sizeof(*tgts) * lsa.lsa_nr_tgts);
4274                 }
4275         }
4276
4277         if (from_yaml) {
4278                 /* generate a layout from a YAML template */
4279                 result = lfs_comp_create_from_yaml(template, &layout,
4280                                                    &lsa, tgts);
4281                 if (result) {
4282                         fprintf(stderr,
4283                                 "error: %s: can't create composite layout from template file %s\n",
4284                                 argv[0], template);
4285                         goto error;
4286                 }
4287         }
4288
4289         if (layout != NULL || mirror_list != NULL) {
4290                 if (mirror_list)
4291                         result = mirror_adjust_first_extents(mirror_list);
4292                 else
4293                         result = layout_adjust_first_extent(fname, layout,
4294                                                             comp_add);
4295                 if (result == -ENODATA)
4296                         comp_add = 0;
4297                 else if (result != 0) {
4298                         fprintf(stderr, "error: %s: invalid layout\n",
4299                                 progname);
4300                         goto error;
4301                 }
4302         }
4303
4304         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
4305                 if (from_copy) {
4306                         layout = llapi_layout_get_by_path(template ?: fname, 0);
4307                         if (!layout) {
4308                                 fprintf(stderr,
4309                                         "%s: can't create composite layout from file %s: %s\n",
4310                                         progname, template ?: fname,
4311                                         strerror(errno));
4312                                 result = -errno;
4313                                 goto error;
4314                         }
4315                 }
4316
4317                 if (migrate_mdt_mode) {
4318                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
4319                 } else if (migrate_mode) {
4320                         result = lfs_migrate(fname, migration_flags, param,
4321                                              layout);
4322                 } else if (comp_set != 0) {
4323                         result = lfs_component_set(fname, comp_id,
4324                                                    lsa.lsa_pool_name,
4325                                                    lsa.lsa_comp_flags,
4326                                                    lsa.lsa_comp_neg_flags);
4327                 } else if (comp_del != 0) {
4328                         result = lfs_component_del(fname, comp_id,
4329                                                    lsa.lsa_comp_flags,
4330                                                    lsa.lsa_comp_neg_flags);
4331                 } else if (comp_add != 0) {
4332                         result = lfs_component_add(fname, layout);
4333                 } else if (opc == SO_MIRROR_CREATE) {
4334                         result = mirror_create(fname, mirror_list);
4335                 } else if (opc == SO_MIRROR_EXTEND) {
4336                         result = mirror_extend(fname, mirror_list,
4337                                                mirror_flags);
4338                 } else if (opc == SO_MIRROR_SPLIT || opc == SO_MIRROR_DELETE) {
4339                         if (!mirror_id && !comp_id && !lsa.lsa_pool_name) {
4340                                 fprintf(stderr,
4341                                         "%s: no mirror id, component id, or pool name specified to delete from '%s'\n",
4342                                         progname, fname);
4343                                 goto usage_error;
4344                         }
4345                         if (lsa.lsa_pool_name)
4346                                 mirror_flags |= MF_COMP_POOL;
4347                         else if (mirror_id != 0)
4348                                 comp_id = mirror_id;
4349                         else
4350                                 mirror_flags |= MF_COMP_ID;
4351                         if (has_m_file && !strcmp(fname, mirror_list->m_file)) {
4352                                 fprintf(stderr,
4353                                         "%s: the file specified by -f cannot be same as the source file '%s'\n",
4354                                         progname, fname);
4355                                 goto usage_error;
4356                         }
4357                         result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
4358                                               mirror_flags,
4359                                               has_m_file ? mirror_list->m_file :
4360                                               NULL);
4361                 } else if (layout) {
4362                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
4363                                                       mode, layout);
4364                         if (result >= 0) {
4365                                 close(result);
4366                                 result = 0;
4367                         }
4368                 } else if (foreign_mode) {
4369                         result = llapi_file_create_foreign(fname, mode, type,
4370                                                            flags, xattr);
4371                         if (result >= 0) {
4372                                 close(result);
4373                                 result = 0;
4374                         }
4375                 } else {
4376                         result = llapi_file_open_param(fname,
4377                                                        O_CREAT | O_WRONLY,
4378                                                        mode, param);
4379                         if (result >= 0) {
4380                                 close(result);
4381                                 result = 0;
4382                         }
4383                 }
4384                 if (result) {
4385                         /* Save the first error encountered. */
4386                         if (result2 == 0)
4387                                 result2 = result;
4388                         continue;
4389                 }
4390         }
4391
4392         if (mode_opt)
4393                 umask(previous_umask);
4394
4395         free(param);
4396         free(migrate_mdt_param.fp_lmv_md);
4397         llapi_layout_free(layout);
4398         lfs_mirror_list_free(mirror_list);
4399         return result2;
4400 usage_error:
4401         result = CMD_HELP;
4402 error:
4403         llapi_layout_free(layout);
4404         lfs_mirror_list_free(mirror_list);
4405         return result;
4406 }
4407
4408 static int lfs_poollist(int argc, char **argv)
4409 {
4410         if (argc != 2)
4411                 return CMD_HELP;
4412
4413         return llapi_poollist(argv[1]);
4414 }
4415
4416 #define FP_DEFAULT_TIME_MARGIN (24 * 60 * 60)
4417 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
4418                        char *str)
4419 {
4420         long long t = 0;
4421         int sign = 0;
4422         char *endptr = "AD";
4423         char *timebuf;
4424
4425         if (str[0] == '+')
4426                 sign = 1;
4427         else if (str[0] == '-')
4428                 sign = -1;
4429
4430         if (sign)
4431                 str++;
4432
4433         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
4434                 long long val = strtoll(timebuf, &endptr, 0);
4435                 int unit = 1;
4436
4437                 switch (*endptr) {
4438                 case  'y':
4439                         unit *= 52; /* 52 weeks + 1 day below */
4440                         fallthrough;
4441                 case  'w':
4442                         unit *= 7;
4443                         if (param->fp_time_margin == FP_DEFAULT_TIME_MARGIN)
4444                                 param->fp_time_margin *= (1 + unit / 52);
4445                         unit += (*endptr == 'y'); /* +1 day for 365 days/year */
4446                         fallthrough;
4447                 case '\0': /* days are default unit if none used */
4448                         fallthrough;
4449                 case  'd':
4450                         unit *= 24;
4451                         fallthrough;
4452                 case  'h':
4453                         unit *= 60;
4454                         fallthrough;
4455                 case  'm':
4456                         unit *= 60;
4457                         fallthrough;
4458                 case  's':
4459                         break;
4460                         /* don't need to multiply by 1 for seconds */
4461                 default:
4462                         fprintf(stderr,
4463                                 "%s find: bad time string '%s': %s\n",
4464                                 progname, timebuf, strerror(EINVAL));
4465                         return LONG_MAX;
4466                 }
4467
4468                 if (param->fp_time_margin == 0 ||
4469                     (*endptr && unit < param->fp_time_margin))
4470                         param->fp_time_margin = unit;
4471
4472                 t += val * unit;
4473         }
4474         if (*time < t) {
4475                 if (sign != 0)
4476                         str--;
4477                 fprintf(stderr, "%s find: bad time '%s': too large\n",
4478                         progname, str);
4479                 return LONG_MAX;
4480         }
4481
4482         *set = *time - t;
4483
4484         return sign;
4485 }
4486
4487 static int str2quotaid(__u32 *id, const char *arg)
4488 {
4489         unsigned long int projid_tmp = 0;
4490         char *endptr = NULL;
4491
4492         projid_tmp = strtoul(arg, &endptr, 10);
4493         if (*endptr != '\0')
4494                 return -EINVAL;
4495         /* UINT32_MAX is not allowed - see projid_valid()/INVALID_PROJID */
4496         if (projid_tmp >= UINT32_MAX)
4497                 return -ERANGE;
4498
4499         *id = projid_tmp;
4500         return 0;
4501 }
4502
4503 static int name2uid(unsigned int *id, const char *name)
4504 {
4505         struct passwd *passwd;
4506
4507         passwd = getpwnam(name);
4508         if (!passwd)
4509                 return -ENOENT;
4510         *id = passwd->pw_uid;
4511
4512         return 0;
4513 }
4514
4515 static int name2gid(unsigned int *id, const char *name)
4516 {
4517         struct group *group;
4518
4519         group = getgrnam(name);
4520         if (!group)
4521                 return -ENOENT;
4522         *id = group->gr_gid;
4523
4524         return 0;
4525 }
4526
4527 static inline int name2projid(unsigned int *id, const char *name)
4528 {
4529         return -ENOTSUP;
4530 }
4531
4532 static int uid2name(char **name, unsigned int id)
4533 {
4534         struct passwd *passwd;
4535
4536         passwd = getpwuid(id);
4537         if (!passwd)
4538                 return -ENOENT;
4539         *name = passwd->pw_name;
4540
4541         return 0;
4542 }
4543
4544 static inline int gid2name(char **name, unsigned int id)
4545 {
4546         struct group *group;
4547
4548         group = getgrgid(id);
4549         if (!group)
4550                 return -ENOENT;
4551         *name = group->gr_name;
4552
4553         return 0;
4554 }
4555
4556 static int name2layout(__u32 *layout, char *name)
4557 {
4558         char *ptr, *layout_name;
4559
4560         *layout = 0;
4561         for (ptr = name; ; ptr = NULL) {
4562                 layout_name = strtok(ptr, ",");
4563                 if (!layout_name)
4564                         break;
4565                 if (strcmp(layout_name, "released") == 0)
4566                         *layout |= LOV_PATTERN_F_RELEASED;
4567                 else if (strcmp(layout_name, "raid0") == 0)
4568                         *layout |= LOV_PATTERN_RAID0;
4569                 else if (strcmp(layout_name, "mdt") == 0)
4570                         *layout |= LOV_PATTERN_MDT;
4571                 else if (strcmp(layout_name, "overstriping") == 0)
4572                         *layout |= LOV_PATTERN_OVERSTRIPING;
4573                 else
4574                         return -1;
4575         }
4576         return 0;
4577 }
4578
4579 static int parse_symbolic(const char *input, mode_t *outmode, const char **end)
4580 {
4581         int loop;
4582         int user, group, other;
4583         int who, all;
4584         char c, op;
4585         mode_t perm;
4586         mode_t usermask;
4587         mode_t previous_flags;
4588
4589         user = group = other = 0;
4590         all = 0;
4591         loop = 1;
4592         perm = 0;
4593         previous_flags = 0;
4594         *end = input;
4595         usermask = 0;
4596
4597         while (loop) {
4598                 switch (*input) {
4599                 case 'u':
4600                         user = 1;
4601                         break;
4602                 case 'g':
4603                         group = 1;
4604                         break;
4605                 case 'o':
4606                         other = 1;
4607                         break;
4608                 case 'a':
4609                         user = group = other = 1;
4610                         all = 1;
4611                         break;
4612                 default:
4613                         loop = 0;
4614                 }
4615
4616                 if (loop)
4617                         input++;
4618         }
4619
4620         who = user || group || other;
4621         if (!who) {
4622                 /* get the umask */
4623                 usermask = umask(0022);
4624                 umask(usermask);
4625                 usermask &= 07777;
4626         }
4627
4628         if (*input == '-' || *input == '+' || *input == '=')
4629                 op = *input++;
4630         else
4631                 /* operation is required */
4632                 return -1;
4633
4634         /* get the flags in *outmode */
4635         switch (*input) {
4636         case 'u':
4637                 previous_flags = (*outmode & 0700);
4638                 perm |= user  ? previous_flags : 0;
4639                 perm |= group ? (previous_flags >> 3) : 0;
4640                 perm |= other ? (previous_flags >> 6) : 0;
4641                 input++;
4642                 goto write_perm;
4643         case 'g':
4644                 previous_flags = (*outmode & 0070);
4645                 perm |= user  ? (previous_flags << 3) : 0;
4646                 perm |= group ? previous_flags : 0;
4647                 perm |= other ? (previous_flags >> 3) : 0;
4648                 input++;
4649                 goto write_perm;
4650         case 'o':
4651                 previous_flags = (*outmode & 0007);
4652                 perm |= user  ? (previous_flags << 6) : 0;
4653                 perm |= group ? (previous_flags << 3) : 0;
4654                 perm |= other ? previous_flags : 0;
4655                 input++;
4656                 goto write_perm;
4657         default:
4658                 break;
4659         }
4660
4661         /* this part is optional,
4662          * if empty perm = 0 and *outmode is not modified
4663          */
4664         loop = 1;
4665         while (loop) {
4666                 c = *input;
4667                 switch (c) {
4668                 case 'r':
4669                         perm |= user  ? 0400 : 0;
4670                         perm |= group ? 0040 : 0;
4671                         perm |= other ? 0004 : 0;
4672                         /* set read permission for uog except for umask's
4673                          * permissions
4674                          */
4675                         perm |= who   ? 0 : (0444 & ~usermask);
4676                         break;
4677                 case 'w':
4678                         perm |= user  ? 0200 : 0;
4679                         perm |= group ? 0020 : 0;
4680                         perm |= other ? 0002 : 0;
4681                         /* set write permission for uog except for umask'
4682                          * permissions
4683                          */
4684                         perm |= who   ? 0 : (0222 & ~usermask);
4685                         break;
4686                 case 'x':
4687                         perm |= user  ? 0100 : 0;
4688                         perm |= group ? 0010 : 0;
4689                         perm |= other ? 0001 : 0;
4690                         /* set execute permission for uog except for umask'
4691                          * permissions
4692                          */
4693                         perm |= who   ? 0 : (0111 & ~usermask);
4694                         break;
4695                 case 'X':
4696                         /*
4697                          * Adds execute permission to 'u', 'g' and/or 'g' if
4698                          * specified and either 'u', 'g' or 'o' already has
4699                          * execute permissions.
4700                          */
4701                         if ((*outmode & 0111) != 0) {
4702                                 perm |= user  ? 0100 : 0;
4703                                 perm |= group ? 0010 : 0;
4704                                 perm |= other ? 0001 : 0;
4705                                 perm |= !who  ? 0111 : 0;
4706                         }
4707                         break;
4708                 case 's':
4709                         /* s is ignored if o is given, but it's not an error */
4710                         if (other && !group && !user)
4711                                 break;
4712                         perm |= user  ? S_ISUID : 0;
4713                         perm |= group ? S_ISGID : 0;
4714                         break;
4715                 case 't':
4716                         /* 't' should be used when 'a' is given
4717                          * or who is empty
4718                          */
4719                         perm |= (!who || all) ? S_ISVTX : 0;
4720                         /* using ugo with t is not an error */
4721                         break;
4722                 default:
4723                         loop = 0;
4724                         break;
4725                 }
4726                 if (loop)
4727                         input++;
4728         }
4729
4730 write_perm:
4731         /* uog flags should be only one character long */
4732         if (previous_flags && (*input != '\0' && *input != ','))
4733                 return -1;
4734
4735         switch (op) {
4736         case '-':
4737                 /* remove the flags from outmode */
4738                 *outmode &= ~perm;
4739                 break;
4740         case '+':
4741                 /* add the flags to outmode */
4742                 *outmode |= perm;
4743                 break;
4744         case '=':
4745                 /* set the flags of outmode to perm */
4746                 if (perm != 0)
4747                         *outmode = perm;
4748                 break;
4749         }
4750
4751         *end = input;
4752         return 0;
4753 }
4754
4755 static int str2mode_t(const char *input, mode_t *outmode)
4756 {
4757         int ret;
4758         const char *iter;
4759
4760         ret = 0;
4761
4762         if (*input >= '0' && *input <= '7') {
4763                 /* parse octal representation */
4764                 char *end;
4765
4766                 iter = input;
4767
4768                 /* look for invalid digits in octal representation */
4769                 while (isdigit(*iter))
4770                         if (*iter++ > '7')
4771                                 return -1;
4772
4773                 errno = 0;
4774                 *outmode = strtoul(input, &end, 8);
4775
4776                 if (errno != 0 || *outmode > 07777) {
4777                         *outmode = 0;
4778                         ret = -1;
4779                 }
4780
4781         } else if (*input == '8' || *input == '9') {
4782                 /* error: invalid octal number */
4783                 ret = -1;
4784         } else {
4785                 /* parse coma seperated list of symbolic representation */
4786                 int rc;
4787                 const char *end;
4788
4789                 *outmode = 0;
4790                 rc = 0;
4791                 end = NULL;
4792
4793                 do {
4794                         rc = parse_symbolic(input, outmode, &end);
4795                         if (rc)
4796                                 return -1;
4797
4798                         input = end+1;
4799                 } while (*end == ',');
4800
4801                 if (*end != '\0')
4802                         ret = -1;
4803         }
4804         return ret;
4805 }
4806
4807 static int lfs_find(int argc, char **argv)
4808 {
4809         int c, rc;
4810         int ret = 0;
4811         time_t t;
4812         struct find_param param = {
4813                 .fp_max_depth = -1,
4814                 .fp_quiet = 1,
4815                 .fp_time_margin = FP_DEFAULT_TIME_MARGIN,
4816         };
4817         struct option long_opts[] = {
4818         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
4819         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
4820         { .val = 'B',   .name = "btime",        .has_arg = required_argument },
4821         { .val = 'B',   .name = "Btime",        .has_arg = required_argument },
4822         { .val = LFS_COMP_COUNT_OPT,
4823                         .name = "comp-count",   .has_arg = required_argument },
4824         { .val = LFS_COMP_COUNT_OPT,
4825                         .name = "component-count",
4826                                                 .has_arg = required_argument },
4827         { .val = LFS_COMP_FLAGS_OPT,
4828                         .name = "comp-flags",   .has_arg = required_argument },
4829         { .val = LFS_COMP_FLAGS_OPT,
4830                         .name = "component-flags",
4831                                                 .has_arg = required_argument },
4832         { .val = LFS_COMP_START_OPT,
4833                         .name = "comp-start",   .has_arg = required_argument },
4834         { .val = LFS_COMP_START_OPT,
4835                         .name = "component-start",
4836                                                 .has_arg = required_argument },
4837         { .val = LFS_MIRROR_STATE_OPT,
4838                         .name = "mirror-state", .has_arg = required_argument },
4839         { .val = LFS_NEWERXY_OPT,
4840                         .name = "newer",        .has_arg = required_argument},
4841         { .val = LFS_NEWERXY_OPT,
4842                         .name = "neweraa",      .has_arg = required_argument},
4843         { .val = LFS_NEWERXY_OPT,
4844                         .name = "neweram",      .has_arg = required_argument},
4845         { .val = LFS_NEWERXY_OPT,
4846                         .name = "newerac",      .has_arg = required_argument},
4847         { .val = LFS_NEWERXY_OPT,
4848                         .name = "newerab",      .has_arg = required_argument},
4849         { .val = LFS_NEWERXY_OPT,
4850                         .name = "newerma",      .has_arg = required_argument},
4851         { .val = LFS_NEWERXY_OPT,
4852                         .name = "newermm",      .has_arg = required_argument},
4853         { .val = LFS_NEWERXY_OPT,
4854                         .name = "newermc",      .has_arg = required_argument},
4855         { .val = LFS_NEWERXY_OPT,
4856                         .name = "newermb",      .has_arg = required_argument},
4857         { .val = LFS_NEWERXY_OPT,
4858                         .name = "newerca",      .has_arg = required_argument},
4859         { .val = LFS_NEWERXY_OPT,
4860                         .name = "newercm",      .has_arg = required_argument},
4861         { .val = LFS_NEWERXY_OPT,
4862                         .name = "newercc",      .has_arg = required_argument},
4863         { .val = LFS_NEWERXY_OPT,
4864                         .name = "newercb",      .has_arg = required_argument},
4865         { .val = LFS_NEWERXY_OPT,
4866                         .name = "newerba",      .has_arg = required_argument},
4867         { .val = LFS_NEWERXY_OPT,
4868                         .name = "newerbm",      .has_arg = required_argument},
4869         { .val = LFS_NEWERXY_OPT,
4870                         .name = "newerbc",      .has_arg = required_argument},
4871         { .val = LFS_NEWERXY_OPT,
4872                         .name = "newerbb",      .has_arg = required_argument},
4873         { .val = LFS_NEWERXY_OPT,
4874                         .name = "newerBa",      .has_arg = required_argument},
4875         { .val = LFS_NEWERXY_OPT,
4876                         .name = "newerBm",      .has_arg = required_argument},
4877         { .val = LFS_NEWERXY_OPT,
4878                         .name = "newerBc",      .has_arg = required_argument},
4879         { .val = LFS_NEWERXY_OPT,
4880                         .name = "newerBB",      .has_arg = required_argument},
4881         { .val = LFS_NEWERXY_OPT,
4882                         .name = "newerat",      .has_arg = required_argument},
4883         { .val = LFS_NEWERXY_OPT,
4884                         .name = "newermt",      .has_arg = required_argument},
4885         { .val = LFS_NEWERXY_OPT,
4886                         .name = "newerct",      .has_arg = required_argument},
4887         { .val = LFS_NEWERXY_OPT,
4888                         .name = "newerbt",      .has_arg = required_argument},
4889         { .val = LFS_NEWERXY_OPT,
4890                         .name = "newerBt",      .has_arg = required_argument},
4891         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
4892         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
4893         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
4894 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
4895         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
4896         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
4897         { .val = 'E',   .name = "component-end",
4898                                                 .has_arg = required_argument },
4899 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
4900         { .val = LFS_LAYOUT_FOREIGN_OPT,
4901                         .name = "foreign",      .has_arg = optional_argument},
4902         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
4903         { .val = 'G',   .name = "group",        .has_arg = required_argument },
4904         { .val = 'h',   .name = "help",         .has_arg = no_argument },
4905         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4906         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
4907         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
4908 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
4909         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
4910         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
4911         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
4912         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4913         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
4914         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
4915         { .val = 'n',   .name = "name",         .has_arg = required_argument },
4916         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
4917 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
4918         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4919         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4920         { .val = LFS_FIND_PERM,
4921                         .name = "perm",         .has_arg = required_argument },
4922         /* no short option for pool yet, can be 'p' after 2.18 */
4923         { .val = LFS_POOL_OPT,
4924                         .name = "pool",         .has_arg = required_argument },
4925         { .val = '0',   .name = "print0",       .has_arg = no_argument },
4926         { .val = 'P',   .name = "print",        .has_arg = no_argument },
4927         { .val = LFS_PRINTF_OPT,
4928                         .name = "printf",       .has_arg = required_argument },
4929         { .val = LFS_PROJID_OPT,
4930                         .name = "projid",       .has_arg = required_argument },
4931 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
4932 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
4933 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
4934         { .val = 's',   .name = "size",         .has_arg = required_argument },
4935         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
4936         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
4937         { .val = 't',   .name = "type",         .has_arg = required_argument },
4938         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4939         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
4940         { .val = 'U',   .name = "user",         .has_arg = required_argument },
4941 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
4942         { .val = 'z',   .name = "extension-size",
4943                                                 .has_arg = required_argument },
4944         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument },
4945         { .name = NULL } };
4946         int optidx = 0;
4947         int pathstart = -1;
4948         int pathend = -1;
4949         int pathbad = -1;
4950         int neg_opt = 0;
4951         time_t *xtime;
4952         int *xsign;
4953         int isoption;
4954         char *endptr;
4955
4956         time(&t);
4957
4958         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
4959         while ((c = getopt_long_only(argc, argv,
4960                 "-0A:b:B:c:C:D:E:g:G:hH:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:z:",
4961                 long_opts, &optidx)) >= 0) {
4962                 xtime = NULL;
4963                 xsign = NULL;
4964                 if (neg_opt)
4965                         --neg_opt;
4966                 /* '!' is part of option */
4967                 /*
4968                  * when getopt_long_only() finds a string which is not
4969                  * an option nor a known option argument it returns 1
4970                  * in that case if we already have found pathstart and pathend
4971                  * (i.e. we have the list of pathnames),
4972                  * the only supported value is "!"
4973                  */
4974                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4975                 if (!isoption && pathend != -1) {
4976                         fprintf(stderr,
4977                                 "err: %s: filename|dirname must either precede options or follow options\n",
4978                                 argv[0]);
4979                         ret = CMD_HELP;
4980                         goto err;
4981                 }
4982                 if (!isoption && pathstart == -1)
4983                         pathstart = optind - 1;
4984                 if (isoption && pathstart != -1 && pathend == -1)
4985                         pathend = optind - 2;
4986                 switch (c) {
4987                 case 0:
4988                         /* Long options. */
4989                         break;
4990                 case 1:
4991                         /*
4992                          * unknown; opt is "!" or path component,
4993                          * checking done above.
4994                          */
4995                         if (strcmp(optarg, "!") == 0)
4996                                 neg_opt = 2;
4997                         break;
4998                 case 'A':
4999                         xtime = &param.fp_atime;
5000                         xsign = &param.fp_asign;
5001                         param.fp_exclude_atime = !!neg_opt;
5002                         /* no break, this falls through to 'B' for btime */
5003                         fallthrough;
5004                 case 'B':
5005                         if (c == 'B') {
5006                                 xtime = &param.fp_btime;
5007                                 xsign = &param.fp_bsign;
5008                                 param.fp_exclude_btime = !!neg_opt;
5009                         }
5010                         /* no break, this falls through to 'C' for ctime */
5011                         fallthrough;
5012                 case 'C':
5013                         if (c == 'C') {
5014                                 xtime = &param.fp_ctime;
5015                                 xsign = &param.fp_csign;
5016                                 param.fp_exclude_ctime = !!neg_opt;
5017                         }
5018                         /* no break, this falls through to 'M' for mtime */
5019                         fallthrough;
5020                 case 'M':
5021                         if (c == 'M') {
5022                                 xtime = &param.fp_mtime;
5023                                 xsign = &param.fp_msign;
5024                                 param.fp_exclude_mtime = !!neg_opt;
5025                         }
5026                         rc = set_time(&param, &t, xtime, optarg);
5027                         if (rc == LONG_MAX) {
5028                                 ret = -1;
5029                                 goto err;
5030                         }
5031                         if (rc)
5032                                 *xsign = rc;
5033                         break;
5034                 case 'b':
5035                         if (optarg[0] == '+') {
5036                                 param.fp_blocks_sign = -1;
5037                                 optarg++;
5038                         } else if (optarg[0] == '-') {
5039                                 param.fp_blocks_sign =  1;
5040                                 optarg++;
5041                         }
5042
5043                         param.fp_blocks_units = 1024;
5044                         ret = llapi_parse_size(optarg, &param.fp_blocks,
5045                                                &param.fp_blocks_units, 0);
5046                         if (ret) {
5047                                 fprintf(stderr, "error: bad blocks '%s'\n",
5048                                         optarg);
5049                                 goto err;
5050                         }
5051                         param.fp_check_blocks = 1;
5052                         param.fp_exclude_blocks = !!neg_opt;
5053                         break;
5054                 case LFS_COMP_COUNT_OPT:
5055                         if (optarg[0] == '+') {
5056                                 param.fp_comp_count_sign = -1;
5057                                 optarg++;
5058                         } else if (optarg[0] == '-') {
5059                                 param.fp_comp_count_sign =  1;
5060                                 optarg++;
5061                         }
5062
5063                         errno = 0;
5064                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
5065                         if (errno != 0 || *endptr != '\0' ||
5066                             param.fp_comp_count > UINT32_MAX) {
5067                                 fprintf(stderr,
5068                                         "error: bad component count '%s'\n",
5069                                         optarg);
5070                                 goto err;
5071                         }
5072                         param.fp_check_comp_count = 1;
5073                         param.fp_exclude_comp_count = !!neg_opt;
5074                         break;
5075                 case LFS_COMP_FLAGS_OPT:
5076                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
5077                                             &param.fp_comp_neg_flags);
5078                         if (rc) {
5079                                 fprintf(stderr,
5080                                         "error: bad component flags '%s'\n",
5081                                         optarg);
5082                                 goto err;
5083                         }
5084                         param.fp_check_comp_flags = 1;
5085                         if (neg_opt) {
5086                                 __u32 flags = param.fp_comp_neg_flags;
5087
5088                                 param.fp_comp_neg_flags = param.fp_comp_flags;
5089                                 param.fp_comp_flags = flags;
5090                         }
5091                         break;
5092                 case LFS_COMP_START_OPT:
5093                         if (optarg[0] == '+') {
5094                                 param.fp_comp_start_sign = -1;
5095                                 optarg++;
5096                         } else if (optarg[0] == '-') {
5097                                 param.fp_comp_start_sign =  1;
5098                                 optarg++;
5099                         }
5100
5101                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
5102                                               &param.fp_comp_start_units, 0);
5103                         if (rc) {
5104                                 fprintf(stderr,
5105                                         "error: bad component start '%s'\n",
5106                                         optarg);
5107                                 goto err;
5108                         }
5109                         param.fp_check_comp_start = 1;
5110                         param.fp_exclude_comp_start = !!neg_opt;
5111                         break;
5112                 case LFS_MIRROR_STATE_OPT:
5113                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
5114                                               &param.fp_mirror_neg_state);
5115                         if (rc) {
5116                                 fprintf(stderr,
5117                                         "error: bad mirrored file state '%s'\n",
5118                                         optarg);
5119                                 goto err;
5120                         }
5121                         param.fp_check_mirror_state = 1;
5122                         if (neg_opt) {
5123                                 __u16 state = param.fp_mirror_neg_state;
5124
5125                                 param.fp_mirror_neg_state =
5126                                         param.fp_mirror_state;
5127                                 param.fp_mirror_state = state;
5128                         }
5129                         break;
5130                 case 'c':
5131                         if (optarg[0] == '+') {
5132                                 param.fp_stripe_count_sign = -1;
5133                                 optarg++;
5134                         } else if (optarg[0] == '-') {
5135                                 param.fp_stripe_count_sign =  1;
5136                                 optarg++;
5137                         }
5138
5139                         errno = 0;
5140                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
5141                         if (errno != 0 || *endptr != '\0' ||
5142                             param.fp_stripe_count > LOV_MAX_STRIPE_COUNT) {
5143                                 fprintf(stderr,
5144                                         "error: bad stripe_count '%s'\n",
5145                                         optarg);
5146                                 ret = -1;
5147                                 goto err;
5148                         }
5149                         param.fp_check_stripe_count = 1;
5150                         param.fp_exclude_stripe_count = !!neg_opt;
5151                         break;
5152                 case 'D':
5153                         errno = 0;
5154                         param.fp_max_depth = strtol(optarg, 0, 0);
5155                         if (errno != 0 || param.fp_max_depth < 0) {
5156                                 fprintf(stderr,
5157                                         "error: bad maxdepth '%s'\n",
5158                                         optarg);
5159                                 ret = -1;
5160                                 goto err;
5161                         }
5162                         break;
5163                 case 'E':
5164                         if (optarg[0] == '+') {
5165                                 param.fp_comp_end_sign = -1;
5166                                 optarg++;
5167                         } else if (optarg[0] == '-') {
5168                                 param.fp_comp_end_sign =  1;
5169                                 optarg++;
5170                         }
5171
5172                         if (arg_is_eof(optarg)) {
5173                                 param.fp_comp_end = LUSTRE_EOF;
5174                                 param.fp_comp_end_units = 1;
5175                                 rc = 0;
5176                         } else {
5177                                 rc = llapi_parse_size(optarg,
5178                                                 &param.fp_comp_end,
5179                                                 &param.fp_comp_end_units, 0);
5180                                 /* assume units of KB if too small */
5181                                 if (param.fp_comp_end < 4096)
5182                                         param.fp_comp_end *= 1024;
5183                         }
5184                         if (rc) {
5185                                 fprintf(stderr,
5186                                         "error: bad component end '%s'\n",
5187                                         optarg);
5188                                 goto err;
5189                         }
5190                         param.fp_check_comp_end = 1;
5191                         param.fp_exclude_comp_end = !!neg_opt;
5192                         break;
5193                 case LFS_LAYOUT_FOREIGN_OPT: {
5194                         /* all types by default */
5195                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
5196
5197                         if (optarg) {
5198                                 /* check pure numeric */
5199                                 type = strtoul(optarg, &endptr, 0);
5200                                 if (*endptr) {
5201                                         /* check name */
5202                                         type = check_foreign_type_name(optarg);
5203                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
5204                                                 fprintf(stderr,
5205                                                         "%s %s: unknown foreign type '%s'\n",
5206                                                         progname, argv[0],
5207                                                         optarg);
5208                                                 return CMD_HELP;
5209                                         }
5210                                 } else if (type >= UINT32_MAX) {
5211                                         fprintf(stderr,
5212                                                 "%s %s: invalid foreign type '%s'\n",
5213                                                 progname, argv[0], optarg);
5214                                         return CMD_HELP;
5215                                 }
5216                         }
5217                         param.fp_foreign_type = type;
5218                         param.fp_check_foreign = 1;
5219                         param.fp_exclude_foreign = !!neg_opt;
5220                         break;
5221                 }
5222                 case LFS_NEWERXY_OPT: {
5223                         char x = 'm';
5224                         char y = 'm';
5225                         int xidx;
5226                         int negidx;
5227                         time_t *newery;
5228                         time_t ref = time(NULL);
5229
5230                         /* no need to check bad options, they won't get here */
5231                         if (strlen(long_opts[optidx].name) == 7) {
5232                                 x = long_opts[optidx].name[5];
5233                                 y = long_opts[optidx].name[6];
5234                         }
5235
5236                         if (y == 't') {
5237                                 static const char *const fmts[] = {
5238                                         "%Y-%m-%d %H:%M:%S",
5239                                         "%Y-%m-%d %H:%M",
5240                                         "%Y-%m-%d",
5241                                         "%H:%M:%S", /* sometime today */
5242                                         "%H:%M",
5243                                         "@%s",
5244                                         "%s",
5245                                         NULL };
5246                                 struct tm tm;
5247                                 bool found = false;
5248                                 int i;
5249
5250                                 for (i = 0; fmts[i] != NULL; i++) {
5251                                         char *ptr;
5252
5253                                         /* Init for times relative to today */
5254                                         if (strncmp(fmts[i], "%H", 2) == 0)
5255                                                 localtime_r(&ref, &tm);
5256                                         else
5257                                                 memset(&tm, 0, sizeof(tm));
5258                                         ptr = strptime(optarg, fmts[i], &tm);
5259                                         /* Skip spaces */
5260                                         while (ptr && isspace(*ptr))
5261                                                 ptr++;
5262                                         if (ptr == optarg + strlen(optarg)) {
5263                                                 found = true;
5264                                                 break;
5265                                         }
5266                                 }
5267
5268                                 if (!found) {
5269                                         fprintf(stderr,
5270                                                 "%s: invalid time '%s'\n",
5271                                                 progname, optarg);
5272                                         fprintf(stderr,
5273                                                 "supported formats are:\n  ");
5274                                         for (i = 0; fmts[i] != NULL; i++)
5275                                                 fprintf(stderr, "'%s', ",
5276                                                         fmts[i]);
5277                                         fprintf(stderr, "\n");
5278                                         ret = -EINVAL;
5279                                         goto err;
5280                                 }
5281
5282                                 ref = mktime(&tm);
5283                         } else if (y == 'b' || y == 'B') {
5284                                 lstatx_t stx;
5285
5286                                 rc = llapi_get_lum_file(optarg, NULL, &stx,
5287                                                         NULL, 0);
5288                                 if (rc || !(stx.stx_mask & STATX_BTIME)) {
5289                                         if (!(stx.stx_mask & STATX_BTIME))
5290                                                 ret = -EOPNOTSUPP;
5291                                         else
5292                                                 ret = -errno;
5293                                         fprintf(stderr,
5294                                                 "%s: get btime failed '%s': %s\n",
5295                                                 progname, optarg,
5296                                                 strerror(-ret));
5297                                         goto err;
5298                                 }
5299
5300                                 ref = stx.stx_btime.tv_sec;
5301                         } else {
5302                                 struct stat statbuf;
5303
5304                                 if (stat(optarg, &statbuf) < 0) {
5305                                         fprintf(stderr,
5306                                                 "%s: cannot stat file '%s': %s\n",
5307                                                 progname, optarg,
5308                                                 strerror(errno));
5309                                         ret = -errno;
5310                                         goto err;
5311                                 }
5312
5313                                 switch (y) {
5314                                 case 'a':
5315                                         ref = statbuf.st_atime;
5316                                         break;
5317                                 case 'm':
5318                                         ref = statbuf.st_mtime;
5319                                         break;
5320                                 case 'c':
5321                                         ref = statbuf.st_ctime;
5322                                         break;
5323                                 default:
5324                                         fprintf(stderr,
5325                                                 "%s: invalid Y argument: '%c'\n",
5326                                                 progname, x);
5327                                         ret = -EINVAL;
5328                                         goto err;
5329                                 }
5330                         }
5331
5332                         switch (x) {
5333                         case 'a':
5334                                 xidx = NEWERXY_ATIME;
5335                                 break;
5336                         case 'm':
5337                                 xidx = NEWERXY_MTIME;
5338                                 break;
5339                         case 'c':
5340                                 xidx = NEWERXY_CTIME;
5341                                 break;
5342                         case 'b':
5343                         case 'B':
5344                                 xidx = NEWERXY_BTIME;
5345                                 break;
5346                         default:
5347                                 fprintf(stderr,
5348                                         "%s: invalid X argument: '%c'\n",
5349                                         progname, x);
5350                                 ret = -EINVAL;
5351                                 goto err;
5352                         }
5353
5354                         negidx = !!neg_opt;
5355                         newery = &param.fp_newery[xidx][negidx];
5356
5357                         if (*newery == 0) {
5358                                 *newery = ref;
5359                         } else {
5360                                 if (negidx)
5361                                         *newery = *newery > ref ? ref : *newery;
5362                                 else
5363                                         *newery = *newery > ref ? *newery : ref;
5364                         }
5365                         param.fp_newerxy = 1;
5366                         break;
5367                 }
5368                 case 'g':
5369                 case 'G':
5370                         rc = name2gid(&param.fp_gid, optarg);
5371                         if (rc) {
5372                                 if (str2quotaid(&param.fp_gid, optarg)) {
5373                                         fprintf(stderr,
5374                                                 "Group/GID: %s cannot be found.\n",
5375                                                 optarg);
5376                                         ret = -1;
5377                                         goto err;
5378                                 }
5379                         }
5380                         param.fp_exclude_gid = !!neg_opt;
5381                         param.fp_check_gid = 1;
5382                         break;
5383                 case 'H':
5384                         rc = mdthash_input(optarg, &param.fp_hash_inflags,
5385                                            &param.fp_hash_exflags,
5386                                            &param.fp_hash_type);
5387                         if (rc) {
5388                                 ret = -1;
5389                                 goto err;
5390                         }
5391                         if (param.fp_hash_inflags || param.fp_hash_exflags)
5392                                 param.fp_check_hash_flag = 1;
5393                         param.fp_exclude_hash_type = !!neg_opt;
5394                         break;
5395                 case 'l':
5396                         param.fp_lazy = 1;
5397                         break;
5398                 case 'L':
5399                         ret = name2layout(&param.fp_layout, optarg);
5400                         if (ret)
5401                                 goto err;
5402                         param.fp_exclude_layout = !!neg_opt;
5403                         param.fp_check_layout = 1;
5404                         break;
5405                 case 'u':
5406                 case 'U':
5407                         rc = name2uid(&param.fp_uid, optarg);
5408                         if (rc) {
5409                                 if (str2quotaid(&param.fp_uid, optarg)) {
5410                                         fprintf(stderr,
5411                                                 "User/UID: %s cannot be found.\n",
5412                                                 optarg);
5413                                         ret = -1;
5414                                         goto err;
5415                                 }
5416                         }
5417                         param.fp_exclude_uid = !!neg_opt;
5418                         param.fp_check_uid = 1;
5419                         break;
5420                 case 'n':
5421                         param.fp_pattern = (char *)optarg;
5422                         param.fp_exclude_pattern = !!neg_opt;
5423                         break;
5424                 case 'N':
5425                         if (optarg[0] == '+') {
5426                                 param.fp_mirror_count_sign = -1;
5427                                 optarg++;
5428                         } else if (optarg[0] == '-') {
5429                                 param.fp_mirror_count_sign =  1;
5430                                 optarg++;
5431                         }
5432
5433                         errno = 0;
5434                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
5435                         if (errno != 0 || *endptr != '\0' ||
5436                             param.fp_mirror_count > LUSTRE_MIRROR_COUNT_MAX) {
5437                                 fprintf(stderr,
5438                                         "error: bad mirror count '%s'\n",
5439                                         optarg);
5440                                 goto err;
5441                         }
5442                         param.fp_check_mirror_count = 1;
5443                         param.fp_exclude_mirror_count = !!neg_opt;
5444                         break;
5445                 case 'm':
5446                 case 'i':
5447                 case 'O': {
5448                         char *buf, *token, *next, *p;
5449                         int len = 1;
5450                         void *tmp;
5451
5452                         buf = strdup(optarg);
5453                         if (!buf) {
5454                                 ret = -ENOMEM;
5455                                 goto err;
5456                         }
5457
5458                         param.fp_exclude_obd = !!neg_opt;
5459
5460                         token = buf;
5461                         while (token && *token) {
5462                                 token = strchr(token, ',');
5463                                 if (token) {
5464                                         len++;
5465                                         token++;
5466                                 }
5467                         }
5468                         if (c == 'm') {
5469                                 param.fp_exclude_mdt = !!neg_opt;
5470                                 param.fp_num_alloc_mdts += len;
5471                                 tmp = realloc(param.fp_mdt_uuid,
5472                                               param.fp_num_alloc_mdts *
5473                                               sizeof(*param.fp_mdt_uuid));
5474                                 if (!tmp) {
5475                                         ret = -ENOMEM;
5476                                         goto err_free;
5477                                 }
5478
5479                                 param.fp_mdt_uuid = tmp;
5480                         } else {
5481                                 param.fp_exclude_obd = !!neg_opt;
5482                                 param.fp_num_alloc_obds += len;
5483                                 tmp = realloc(param.fp_obd_uuid,
5484                                               param.fp_num_alloc_obds *
5485                                               sizeof(*param.fp_obd_uuid));
5486                                 if (!tmp) {
5487                                         ret = -ENOMEM;
5488                                         goto err_free;
5489                                 }
5490
5491                                 param.fp_obd_uuid = tmp;
5492                         }
5493                         for (token = buf; token && *token; token = next) {
5494                                 struct obd_uuid *puuid;
5495
5496                                 if (c == 'm') {
5497                                         puuid =
5498                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
5499                                 } else {
5500                                         puuid =
5501                                         &param.fp_obd_uuid[param.fp_num_obds++];
5502                                 }
5503                                 p = strchr(token, ',');
5504                                 next = 0;
5505                                 if (p) {
5506                                         *p = 0;
5507                                         next = p+1;
5508                                 }
5509
5510                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
5511                                         ret = -E2BIG;
5512                                         goto err_free;
5513                                 }
5514
5515                                 strncpy(puuid->uuid, token,
5516                                         sizeof(puuid->uuid));
5517                         }
5518 err_free:
5519                         if (buf)
5520                                 free(buf);
5521                         break;
5522                 }
5523 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
5524                 case 'p':
5525 #endif
5526                 case LFS_POOL_OPT:
5527                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
5528                                 fprintf(stderr,
5529                                         "Pool name %s is too long (max %d)\n",
5530                                         optarg, LOV_MAXPOOLNAME);
5531                                 ret = -1;
5532                                 goto err;
5533                         }
5534                         /*
5535                          * We do check for empty pool because empty pool
5536                          * is used to find V1 LOV attributes
5537                          */
5538                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
5539                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
5540                         param.fp_exclude_pool = !!neg_opt;
5541                         param.fp_check_pool = 1;
5542                         break;
5543 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
5544                 case 'p': /* want this for --pool, to match getstripe/find */
5545                         fprintf(stderr,
5546                                 "warning: -p deprecated, use --print0 or -0\n");
5547 #endif
5548                 case '0':
5549                         param.fp_zero_end = 1;
5550                         break;
5551                 case 'P': /* we always print, this option is a no-op */
5552                         break;
5553                 case LFS_PRINTF_OPT:
5554                         param.fp_format_printf_str = optarg;
5555                         break;
5556                 case LFS_PROJID_OPT:
5557                         rc = name2projid(&param.fp_projid, optarg);
5558                         if (rc) {
5559                                 if (str2quotaid(&param.fp_projid, optarg)) {
5560                                         fprintf(stderr,
5561                                                 "Invalid project ID: %s\n",
5562                                                 optarg);
5563                                         ret = -1;
5564                                         goto err;
5565                                 }
5566                         }
5567                         param.fp_exclude_projid = !!neg_opt;
5568                         param.fp_check_projid = 1;
5569                         break;
5570                 case 's':
5571                         if (optarg[0] == '+') {
5572                                 param.fp_size_sign = -1;
5573                                 optarg++;
5574                         } else if (optarg[0] == '-') {
5575                                 param.fp_size_sign =  1;
5576                                 optarg++;
5577                         }
5578
5579                         ret = llapi_parse_size(optarg, &param.fp_size,
5580                                                &param.fp_size_units, 0);
5581                         if (ret) {
5582                                 fprintf(stderr, "error: bad file size '%s'\n",
5583                                         optarg);
5584                                 goto err;
5585                         }
5586                         param.fp_check_size = 1;
5587                         param.fp_exclude_size = !!neg_opt;
5588                         break;
5589                 case 'S':
5590                         if (optarg[0] == '+') {
5591                                 param.fp_stripe_size_sign = -1;
5592                                 optarg++;
5593                         } else if (optarg[0] == '-') {
5594                                 param.fp_stripe_size_sign =  1;
5595                                 optarg++;
5596                         }
5597
5598                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
5599                                                &param.fp_stripe_size_units, 0);
5600                         /* assume units of KB if too small to be valid */
5601                         if (param.fp_stripe_size < 4096)
5602                                 param.fp_stripe_size *= 1024;
5603                         if (ret) {
5604                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
5605                                         optarg);
5606                                 goto err;
5607                         }
5608                         param.fp_check_stripe_size = 1;
5609                         param.fp_exclude_stripe_size = !!neg_opt;
5610                         break;
5611                 case 't':
5612                         param.fp_exclude_type = !!neg_opt;
5613                         switch (optarg[0]) {
5614                         case 'b':
5615                                 param.fp_type = S_IFBLK;
5616                                 break;
5617                         case 'c':
5618                                 param.fp_type = S_IFCHR;
5619                                 break;
5620                         case 'd':
5621                                 param.fp_type = S_IFDIR;
5622                                 break;
5623                         case 'f':
5624                                 param.fp_type = S_IFREG;
5625                                 break;
5626                         case 'l':
5627                                 param.fp_type = S_IFLNK;
5628                                 break;
5629                         case 'p':
5630                                 param.fp_type = S_IFIFO;
5631                                 break;
5632                         case 's':
5633                                 param.fp_type = S_IFSOCK;
5634                                 break;
5635                         default:
5636                                 fprintf(stderr, "%s: bad type '%s'\n",
5637                                         progname, optarg);
5638                                 ret = CMD_HELP;
5639                                 goto err;
5640                         }
5641                         break;
5642                 case LFS_FIND_PERM:
5643                         param.fp_exclude_perm = !!neg_opt;
5644                         param.fp_perm_sign = LFS_FIND_PERM_EXACT;
5645                         if (*optarg == '/') {
5646                                 param.fp_perm_sign = LFS_FIND_PERM_ANY;
5647                                 optarg++;
5648                         } else if (*optarg == '-') {
5649                                 param.fp_perm_sign = LFS_FIND_PERM_ALL;
5650                                 optarg++;
5651                         }
5652
5653                         if (str2mode_t(optarg, &param.fp_perm)) {
5654                                 fprintf(stderr, "error: invalid mode '%s'\n",
5655                                         optarg);
5656                                 ret = -1;
5657                                 goto err;
5658                         }
5659                         break;
5660                 case 'T':
5661                         if (optarg[0] == '+') {
5662                                 param.fp_mdt_count_sign = -1;
5663                                 optarg++;
5664                         } else if (optarg[0] == '-') {
5665                                 param.fp_mdt_count_sign =  1;
5666                                 optarg++;
5667                         }
5668
5669                         errno = 0;
5670                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
5671                         if (errno != 0 || *endptr != '\0' ||
5672                             param.fp_mdt_count >= UINT32_MAX) {
5673                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
5674                                         optarg);
5675                                 ret = -1;
5676                                 goto err;
5677                         }
5678                         param.fp_check_mdt_count = 1;
5679                         param.fp_exclude_mdt_count = !!neg_opt;
5680                         break;
5681                 case 'z':
5682                         if (optarg[0] == '+') {
5683                                 param.fp_ext_size_sign = -1;
5684                                 optarg++;
5685                         } else if (optarg[0] == '-') {
5686                                 param.fp_ext_size_sign =  1;
5687                                 optarg++;
5688                         }
5689
5690                         ret = llapi_parse_size(optarg, &param.fp_ext_size,
5691                                                &param.fp_ext_size_units, 0);
5692                         if (ret) {
5693                                 fprintf(stderr, "error: bad ext-size '%s'\n",
5694                                         optarg);
5695                                 goto err;
5696                         }
5697                         param.fp_ext_size /= SEL_UNIT_SIZE;
5698                         param.fp_ext_size_units /= SEL_UNIT_SIZE;
5699                         param.fp_check_ext_size = 1;
5700                         param.fp_exclude_ext_size = !!neg_opt;
5701                         break;
5702                 default:
5703                         fprintf(stderr, "%s: unrecognized option '%s'\n",
5704                                 progname, argv[optind - 1]);
5705                 case 'h':
5706                         ret = CMD_HELP;
5707                         goto err;
5708                 }
5709         }
5710         if (!param.fp_verbose)
5711                 param.fp_verbose = VERBOSE_DEFAULT;
5712
5713         if (pathstart == -1) {
5714                 fprintf(stderr, "error: %s: no filename|pathname\n",
5715                         argv[0]);
5716                 ret = CMD_HELP;
5717                 goto err;
5718         } else if (pathend == -1) {
5719                 /* no options */
5720                 pathend = argc;
5721         }
5722
5723         do {
5724                 rc = llapi_find(argv[pathstart], &param);
5725                 if (rc && !ret) {
5726                         ret = rc;
5727                         pathbad = pathstart;
5728                 }
5729         } while (++pathstart < pathend);
5730
5731         if (ret)
5732                 fprintf(stderr, "%s: failed for '%s': %s\n",
5733                         progname, argv[pathbad], strerror(-rc));
5734
5735 err:
5736         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
5737                 free(param.fp_obd_uuid);
5738
5739         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
5740                 free(param.fp_mdt_uuid);
5741
5742         return ret;
5743 }
5744
5745 static int lfs_getstripe_internal(int argc, char **argv,
5746                                   struct find_param *param)
5747 {
5748         struct option long_opts[] = {
5749 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
5750 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
5751 /* find { .val = 'B',   .name = "btime",        .has_arg = required_argument }*/
5752 /* find { .val = 'B',   .name = "Btime",        .has_arg = required_argument }*/
5753         { .val = LFS_COMP_COUNT_OPT,
5754                         .name = "comp-count",   .has_arg = no_argument },
5755         { .val = LFS_COMP_COUNT_OPT,
5756                 .name = "component-count",      .has_arg = no_argument },
5757         { .val = LFS_COMP_FLAGS_OPT,
5758                         .name = "comp-flags",   .has_arg = optional_argument },
5759         { .val = LFS_COMP_FLAGS_OPT,
5760                 .name = "component-flags",      .has_arg = optional_argument },
5761         { .val = LFS_COMP_START_OPT,
5762                         .name = "comp-start",   .has_arg = optional_argument },
5763         { .val = LFS_COMP_START_OPT,
5764                 .name = "component-start",      .has_arg = optional_argument },
5765         { .val = LFS_MIRROR_INDEX_OPT,
5766                 .name = "mirror-index",         .has_arg = required_argument },
5767         { .val = LFS_MIRROR_ID_OPT,
5768                 .name = "mirror-id",            .has_arg = required_argument },
5769         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
5770         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
5771 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
5772         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
5773         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5774         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
5775         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
5776         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
5777         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
5778 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
5779         { .val = 'h',   .name = "help",         .has_arg = no_argument },
5780 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
5781         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
5782         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
5783         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
5784         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
5785 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
5786         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
5787         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
5788         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5789         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
5790 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
5791 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
5792         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
5793         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5794         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
5795         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
5796 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
5797         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
5798         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5799         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
5800         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
5801         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
5802 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
5803 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
5804 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
5805 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
5806         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5807 /* dirstripe { .val = 'X',.name = "max-inherit",.has_arg = required_argument }*/
5808         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5809         { .val = 'z',   .name = "extension-size", .has_arg = no_argument },
5810         { .val = 'z',   .name = "ext-size",     .has_arg = no_argument },
5811         { .name = NULL } };
5812         int c, rc;
5813         int neg_opt = 0;
5814         int pathstart = -1, pathend = -1;
5815         int isoption;
5816         char *end, *tmp;
5817
5818         while ((c = getopt_long(argc, argv,
5819                         "-cdDE::FghiI::LmMNoO:pqrRsSvyz",
5820                         long_opts, NULL)) != -1) {
5821                 if (neg_opt)
5822                         --neg_opt;
5823
5824                 /* '!' is part of option */
5825                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5826                 if (!isoption && pathend != -1) {
5827                         fprintf(stderr,
5828                                 "error: %s: filename|dirname must either precede options or follow options\n",
5829                                 argv[0]);
5830                         return CMD_HELP;
5831                 }
5832                 if (!isoption && pathstart == -1)
5833                         pathstart = optind - 1;
5834                 if (isoption && pathstart != -1 && pathend == -1)
5835                         pathend = optind - 2;
5836
5837                 switch (c) {
5838                 case 1:
5839                         /* unknown: opt is "!" */
5840                         if (strcmp(optarg, "!") == 0)
5841                                 neg_opt = 2;
5842                         break;
5843                 case 'c':
5844                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5845                                 param->fp_verbose |= VERBOSE_COUNT;
5846                                 param->fp_max_depth = 0;
5847                         }
5848                         break;
5849                 case LFS_COMP_COUNT_OPT:
5850                         param->fp_verbose |= VERBOSE_COMP_COUNT;
5851                         param->fp_max_depth = 0;
5852                         break;
5853                 case LFS_COMP_FLAGS_OPT:
5854                         if (optarg) {
5855                                 rc = comp_str2flags(optarg,
5856                                                     &param->fp_comp_flags,
5857                                                     &param->fp_comp_neg_flags);
5858                                 if (rc != 0) {
5859                                         fprintf(stderr,
5860                                                 "error: %s bad component flags '%s'.\n",
5861                                                 argv[0], optarg);
5862                                         return CMD_HELP;
5863                                 }
5864                                 param->fp_check_comp_flags = 1;
5865                         } else {
5866                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
5867                                 param->fp_max_depth = 0;
5868                         }
5869                         break;
5870                 case LFS_COMP_START_OPT:
5871                         if (optarg) {
5872                                 tmp = optarg;
5873                                 if (tmp[0] == '+') {
5874                                         param->fp_comp_start_sign = -1;
5875                                         tmp++;
5876                                 } else if (tmp[0] == '-') {
5877                                         param->fp_comp_start_sign = 1;
5878                                         tmp++;
5879                                 }
5880                                 rc = llapi_parse_size(tmp,
5881                                                 &param->fp_comp_start,
5882                                                 &param->fp_comp_start_units, 0);
5883                                 if (rc != 0) {
5884                                         fprintf(stderr,
5885                                                 "error: %s bad component start '%s'.\n",
5886                                                 argv[0], tmp);
5887                                         return CMD_HELP;
5888                                 }
5889                                 param->fp_check_comp_start = 1;
5890                         } else {
5891                                 param->fp_verbose |= VERBOSE_COMP_START;
5892                                 param->fp_max_depth = 0;
5893                         }
5894                         break;
5895                 case LFS_MIRROR_INDEX_OPT: {
5896                         unsigned long int mirror_index;
5897
5898                         if (optarg[0] == '+') {
5899                                 param->fp_mirror_index_sign = -1;
5900                                 optarg++;
5901                         } else if (optarg[0] == '-') {
5902                                 param->fp_mirror_index_sign = 1;
5903                                 optarg++;
5904                         }
5905
5906                         errno = 0;
5907                         mirror_index = strtoul(optarg, &end, 0);
5908                         if (errno != 0 || *end != '\0' ||
5909                             mirror_index > UINT16_MAX || (mirror_index == 0 &&
5910                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
5911                                 fprintf(stderr,
5912                                         "%s %s: invalid mirror index '%s'\n",
5913                                         progname, argv[0], optarg);
5914                                 return CMD_HELP;
5915                         }
5916
5917                         param->fp_mirror_index = (__u16)mirror_index;
5918
5919                         if (param->fp_mirror_id != 0) {
5920                                 fprintf(stderr,
5921                                         "%s %s: can't specify both mirror index and mirror ID\n",
5922                                         progname, argv[0]);
5923                                 return CMD_HELP;
5924                         }
5925                         param->fp_check_mirror_index = 1;
5926                         param->fp_exclude_mirror_index = !!neg_opt;
5927                         break;
5928                 }
5929                 case LFS_MIRROR_ID_OPT: {
5930                         unsigned long int mirror_id;
5931
5932                         if (optarg[0] == '+') {
5933                                 param->fp_mirror_id_sign = -1;
5934                                 optarg++;
5935                         } else if (optarg[0] == '-') {
5936                                 param->fp_mirror_id_sign = 1;
5937                                 optarg++;
5938                         }
5939
5940                         errno = 0;
5941                         mirror_id = strtoul(optarg, &end, 0);
5942                         if (errno != 0 || *end != '\0' ||
5943                             mirror_id > UINT16_MAX || (mirror_id == 0 &&
5944                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
5945                                 fprintf(stderr,
5946                                         "%s %s: invalid mirror ID '%s'\n",
5947                                         progname, argv[0], optarg);
5948                                 return CMD_HELP;
5949                         }
5950
5951                         param->fp_mirror_id = (__u16)mirror_id;
5952
5953                         if (param->fp_mirror_index != 0) {
5954                                 fprintf(stderr,
5955                                         "%s %s: can't specify both mirror index and mirror ID\n",
5956                                         progname, argv[0]);
5957                                 return CMD_HELP;
5958                         }
5959                         param->fp_check_mirror_id = 1;
5960                         param->fp_exclude_mirror_id = !!neg_opt;
5961                         break;
5962                 }
5963                 case 'd':
5964                         param->fp_max_depth = 0;
5965                         break;
5966                 case 'D':
5967                         param->fp_get_default_lmv = 1;
5968                         break;
5969                 case 'E':
5970                         if (optarg) {
5971                                 tmp = optarg;
5972                                 if (tmp[0] == '+') {
5973                                         param->fp_comp_end_sign = -1;
5974                                         tmp++;
5975                                 } else if (tmp[0] == '-') {
5976                                         param->fp_comp_end_sign = 1;
5977                                         tmp++;
5978                                 }
5979
5980                                 if (arg_is_eof(tmp)) {
5981                                         param->fp_comp_end = LUSTRE_EOF;
5982                                         param->fp_comp_end_units = 1;
5983                                         rc = 0;
5984                                 } else {
5985                                         rc = llapi_parse_size(tmp,
5986                                                 &param->fp_comp_end,
5987                                                 &param->fp_comp_end_units, 0);
5988                                         /* assume units of KB if too small */
5989                                         if (param->fp_comp_end < 4096)
5990                                                 param->fp_comp_end *= 1024;
5991                                 }
5992                                 if (rc != 0) {
5993                                         fprintf(stderr,
5994                                                 "error: %s bad component end '%s'.\n",
5995                                                 argv[0], tmp);
5996                                         return CMD_HELP;
5997                                 }
5998                                 param->fp_check_comp_end = 1;
5999                         } else {
6000                                 param->fp_verbose |= VERBOSE_COMP_END;
6001                                 param->fp_max_depth = 0;
6002                         }
6003                         break;
6004                 case 'F':
6005                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6006                                 param->fp_verbose |= VERBOSE_DFID;
6007                                 param->fp_max_depth = 0;
6008                         }
6009                         break;
6010                 case 'g':
6011                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6012                                 param->fp_verbose |= VERBOSE_GENERATION;
6013                                 param->fp_max_depth = 0;
6014                         }
6015                         break;
6016                 case 'i':
6017                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6018                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
6019                                 param->fp_max_depth = 0;
6020                         }
6021                         break;
6022                 case 'I':
6023                         if (optarg) {
6024                                 param->fp_comp_id = strtoul(optarg, &end, 0);
6025                                 if (*end != '\0' || param->fp_comp_id == 0 ||
6026                                     param->fp_comp_id > LCME_ID_MAX) {
6027                                         fprintf(stderr,
6028                                                 "error: %s bad component id '%s'\n",
6029                                                 argv[0], optarg);
6030                                         return CMD_HELP;
6031                                 }
6032                                 param->fp_check_comp_id = 1;
6033                         } else {
6034                                 param->fp_max_depth = 0;
6035                                 param->fp_verbose |= VERBOSE_COMP_ID;
6036                         }
6037                         break;
6038                 case 'L':
6039                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6040                                 param->fp_verbose |= VERBOSE_PATTERN;
6041                                 param->fp_max_depth = 0;
6042                         }
6043                         break;
6044 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6045                 case 'M':
6046                         fprintf(stderr,
6047                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
6048 #endif
6049                 case 'm':
6050                         if (!(param->fp_verbose & VERBOSE_DETAIL))
6051                                 param->fp_max_depth = 0;
6052                         param->fp_verbose |= VERBOSE_MDTINDEX;
6053                         break;
6054                 case 'N':
6055                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6056                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
6057                                 param->fp_max_depth = 0;
6058                         }
6059                         break;
6060                 case 'O':
6061                         if (param->fp_obd_uuid) {
6062                                 fprintf(stderr,
6063                                         "error: %s: only one obduuid allowed",
6064                                         argv[0]);
6065                                 return CMD_HELP;
6066                         }
6067                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
6068                         break;
6069                 case 'p':
6070                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6071                                 param->fp_verbose |= VERBOSE_POOL;
6072                                 param->fp_max_depth = 0;
6073                         }
6074                         break;
6075                 case 'q':
6076                         param->fp_quiet++;
6077                         break;
6078                 case 'r':
6079                         param->fp_recursive = 1;
6080                         break;
6081                 case 'R':
6082                         param->fp_raw = 1;
6083                         break;
6084                 case 'S':
6085                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6086                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
6087                                 param->fp_max_depth = 0;
6088                         }
6089                         break;
6090                 case 'v':
6091                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
6092                         break;
6093                 case 'y':
6094                         param->fp_yaml = 1;
6095                         break;
6096                 case 'z':
6097                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
6098                                 param->fp_verbose |= VERBOSE_EXT_SIZE;
6099                                 param->fp_max_depth = 0;
6100                         }
6101                         break;
6102                 default:
6103                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6104                                 progname, argv[optind - 1]);
6105                 case 'h':
6106                         return CMD_HELP;
6107                 }
6108         }
6109
6110         if (pathstart == -1) {
6111                 fprintf(stderr, "error: %s: no filename|pathname\n",
6112                                 argv[0]);
6113                 return CMD_HELP;
6114         } else if (pathend == -1) {
6115                 /* no options */
6116                 pathend = argc;
6117         }
6118
6119         if (pathend > argc)
6120                 return CMD_HELP;
6121
6122         if (param->fp_recursive)
6123                 param->fp_max_depth = -1;
6124         else if (param->fp_verbose & VERBOSE_DETAIL)
6125                 param->fp_max_depth = 1;
6126
6127         if (!param->fp_verbose)
6128                 param->fp_verbose = VERBOSE_DEFAULT;
6129         if (param->fp_quiet)
6130                 param->fp_verbose = VERBOSE_OBJID;
6131
6132         do {
6133                 rc = llapi_getstripe(argv[pathstart], param);
6134         } while (++pathstart < pathend && !rc);
6135
6136         if (rc)
6137                 fprintf(stderr, "error: %s failed for %s.\n",
6138                         argv[0], argv[optind - 1]);
6139         return rc;
6140 }
6141
6142 static int lfs_tgts(int argc, char **argv)
6143 {
6144         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
6145         struct find_param param;
6146         int index = 0, rc = 0;
6147
6148         if (argc > 2)
6149                 return CMD_HELP;
6150
6151         if (argc == 2 && !realpath(argv[1], path)) {
6152                 rc = -errno;
6153                 fprintf(stderr, "error: invalid path '%s': %s\n",
6154                         argv[1], strerror(-rc));
6155                 return rc;
6156         }
6157
6158         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
6159                 /* Check if we have a mount point */
6160                 if (mntdir[0] == '\0')
6161                         continue;
6162
6163                 memset(&param, 0, sizeof(param));
6164                 if (!strcmp(argv[0], "mdts"))
6165                         param.fp_get_lmv = 1;
6166
6167                 rc = llapi_ostlist(mntdir, &param);
6168                 if (rc) {
6169                         fprintf(stderr, "error: %s: failed on %s\n",
6170                                 argv[0], mntdir);
6171                 }
6172                 if (path[0] != '\0')
6173                         break;
6174                 memset(mntdir, 0, PATH_MAX);
6175         }
6176
6177         return rc;
6178 }
6179
6180 static int lfs_getstripe(int argc, char **argv)
6181 {
6182         struct find_param param = { 0 };
6183
6184         param.fp_max_depth = 1;
6185         return lfs_getstripe_internal(argc, argv, &param);
6186 }
6187
6188 /* functions */
6189 static int lfs_getdirstripe(int argc, char **argv)
6190 {
6191         struct find_param param = { 0 };
6192         struct option long_opts[] = {
6193         { .val = 'c',   .name = "mdt-count",     .has_arg = no_argument },
6194         { .val = 'D',   .name = "default",       .has_arg = no_argument },
6195         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6196         { .val = 'H',   .name = "mdt-hash",      .has_arg = no_argument },
6197         { .val = 'i',   .name = "mdt-index",     .has_arg = no_argument },
6198         { .val = 'm',   .name = "mdt-index",     .has_arg = no_argument },
6199         { .val = 'O',   .name = "obd",           .has_arg = required_argument },
6200         { .val = 'r',   .name = "recursive",     .has_arg = no_argument },
6201         { .val = 'T',   .name = "mdt-count",     .has_arg = no_argument },
6202         { .val = 'v',   .name = "verbose",       .has_arg = no_argument },
6203         { .val = 'X',   .name = "max-inherit",   .has_arg = no_argument },
6204         { .val = 'y',   .name = "yaml",          .has_arg = no_argument },
6205         { .val = LFS_INHERIT_RR_OPT,
6206                         .name = "max-inherit-rr", .has_arg = no_argument },
6207         { .name = NULL } };
6208         int c, rc;
6209
6210         param.fp_get_lmv = 1;
6211
6212         while ((c = getopt_long(argc, argv,
6213                                 "cDhHimO:rtTvXy", long_opts, NULL)) != -1) {
6214                 switch (c) {
6215                 case 'c':
6216                 case 'T':
6217                         param.fp_verbose |= VERBOSE_COUNT;
6218                         break;
6219                 case 'D':
6220                         param.fp_get_default_lmv = 1;
6221                         break;
6222 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6223                 case 't':
6224                         fprintf(stderr,
6225                                 "warning: '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6226                         fallthrough;
6227 #endif
6228                 case 'H':
6229                         param.fp_verbose |= VERBOSE_HASH_TYPE;
6230                         break;
6231                 case 'i':
6232                         fallthrough;
6233                 case 'm':
6234                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
6235                         break;
6236                 case 'O':
6237                         if (param.fp_obd_uuid) {
6238                                 fprintf(stderr,
6239                                         "%s: only one obduuid allowed",
6240                                         progname);
6241                                 return CMD_HELP;
6242                         }
6243                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
6244                         break;
6245                 case 'r':
6246                         param.fp_recursive = 1;
6247                         break;
6248                 case 'v':
6249                         param.fp_verbose |= VERBOSE_DETAIL;
6250                         break;
6251                 case 'X':
6252                         param.fp_verbose |= VERBOSE_INHERIT;
6253                         break;
6254                 case LFS_INHERIT_RR_OPT:
6255                         param.fp_verbose |= VERBOSE_INHERIT_RR;
6256                         break;
6257                 case 'y':
6258                         param.fp_yaml = 1;
6259                         break;
6260                 default:
6261                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6262                                 progname, argv[optind - 1]);
6263                         fallthrough;
6264                 case 'h':
6265                         return CMD_HELP;
6266                 }
6267         }
6268
6269         if (optind >= argc)
6270                 return CMD_HELP;
6271
6272         if (param.fp_recursive)
6273                 param.fp_max_depth = -1;
6274
6275         if (!param.fp_verbose)
6276                 param.fp_verbose = VERBOSE_DEFAULT;
6277
6278         do {
6279                 rc = llapi_getstripe(argv[optind], &param);
6280         } while (++optind < argc && !rc);
6281
6282         if (rc)
6283                 fprintf(stderr, "error: %s failed for %s.\n",
6284                         argv[0], argv[optind - 1]);
6285         return rc;
6286 }
6287
6288 enum mntdf_flags {
6289         MNTDF_INODES    = 0x0001,
6290         MNTDF_COOKED    = 0x0002,
6291         MNTDF_LAZY      = 0x0004,
6292         MNTDF_VERBOSE   = 0x0008,
6293         MNTDF_SHOW      = 0x0010,
6294         MNTDF_DECIMAL   = 0x0020,
6295 };
6296
6297 #define COOK(value, base)                                       \
6298 ({                                                              \
6299         int radix = 0;                                          \
6300         while (value > base) {                                  \
6301                 value /= base;                                  \
6302                 radix++;                                        \
6303         }                                                       \
6304         radix;                                                  \
6305 })
6306 #define UUF     "%-20s"
6307 #define CSF     "%11s"
6308 #define CDF     "%11llu"
6309 #define HDF     "%8.1f%c"
6310 #define RSF     "%4s"
6311 #define RDF     "%3d%%"
6312
6313 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
6314 {
6315         double avail, used, ratio = 0;
6316
6317         if (inodes) {
6318                 avail = st->os_ffree;
6319                 used = st->os_files - st->os_ffree;
6320         } else {
6321                 avail = st->os_bavail;
6322                 used = st->os_blocks - st->os_bfree;
6323         }
6324         if (avail + used > 0)
6325                 ratio = used / (used + avail) * 100;
6326
6327         /* Round up to match df(1) usage percentage */
6328         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
6329 }
6330
6331 /*
6332  * This is to identify various problem states for "lfs df" if .osn_err = true,
6333  * so only show flags reflecting those states by default. Informational states
6334  * are only shown with "-v" and use lower-case names to distinguish them.
6335  * UNUSED[12] were for "EROFS = 30" until 1.6 but are now available for use.
6336  */
6337 static struct obd_statfs_state_names {
6338         enum obd_statfs_state   osn_state;
6339         const char              osn_name;
6340         bool                    osn_err;
6341 } oss_names[] = {
6342         { .osn_state = OS_STATFS_DEGRADED,   .osn_name = 'D', .osn_err = true },
6343         { .osn_state = OS_STATFS_READONLY,   .osn_name = 'R', .osn_err = true },
6344         { .osn_state = OS_STATFS_NOPRECREATE,.osn_name = 'N', .osn_err = true },
6345         { .osn_state = OS_STATFS_UNUSED1,    .osn_name = '?', .osn_err = true },
6346         { .osn_state = OS_STATFS_UNUSED2,    .osn_name = '?', .osn_err = true },
6347         { .osn_state = OS_STATFS_ENOSPC,     .osn_name = 'S', .osn_err = true },
6348         { .osn_state = OS_STATFS_ENOINO,     .osn_name = 'I', .osn_err = true },
6349         { .osn_state = OS_STATFS_SUM,        .osn_name = 'a', /* aggregate */ },
6350         { .osn_state = OS_STATFS_NONROT,     .osn_name = 'f', /* flash */     },
6351 };
6352
6353 static int showdf(char *mntdir, struct obd_statfs *stat,
6354                   char *uuid, enum mntdf_flags flags,
6355                   char *type, int index, int rc)
6356 {
6357         long long avail, used, total;
6358         int ratio = 0;
6359         char *suffix = flags & MNTDF_DECIMAL ? "kMGTPEZY" : "KMGTPEZY";
6360         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
6361         char tbuf[3 * sizeof(__u64)];
6362         char ubuf[3 * sizeof(__u64)];
6363         char abuf[3 * sizeof(__u64)];
6364         char rbuf[3 * sizeof(__u64)];
6365
6366         if (!uuid || !stat)
6367                 return -EINVAL;
6368
6369         switch (rc) {
6370         case 0:
6371                 if (flags & MNTDF_INODES) {
6372                         avail = stat->os_ffree;
6373                         used = stat->os_files - stat->os_ffree;
6374                         total = stat->os_files;
6375                 } else {
6376                         int shift = flags & MNTDF_COOKED ? 0 : 10;
6377
6378                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
6379                         used  = ((stat->os_blocks - stat->os_bfree) *
6380                                  stat->os_bsize) >> shift;
6381                         total = (stat->os_blocks * stat->os_bsize) >> shift;
6382                 }
6383
6384                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
6385
6386                 if (flags & MNTDF_COOKED) {
6387                         int base = flags & MNTDF_DECIMAL ? 1000 : 1024;
6388                         double cook_val;
6389                         int i;
6390
6391                         cook_val = (double)total;
6392                         i = COOK(cook_val, base);
6393                         if (i > 0)
6394                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
6395                                          suffix[i - 1]);
6396                         else
6397                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
6398
6399                         cook_val = (double)used;
6400                         i = COOK(cook_val, base);
6401                         if (i > 0)
6402                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
6403                                          suffix[i - 1]);
6404                         else
6405                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
6406
6407                         cook_val = (double)avail;
6408                         i = COOK(cook_val, base);
6409                         if (i > 0)
6410                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
6411                                          suffix[i - 1]);
6412                         else
6413                                 snprintf(abuf, sizeof(abuf), CDF, avail);
6414                 } else {
6415                         snprintf(tbuf, sizeof(tbuf), CDF, total);
6416                         snprintf(ubuf, sizeof(tbuf), CDF, used);
6417                         snprintf(abuf, sizeof(tbuf), CDF, avail);
6418                 }
6419
6420                 sprintf(rbuf, RDF, ratio);
6421                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
6422                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
6423                 if (type)
6424                         printf("[%s:%d]", type, index);
6425
6426                 if (stat->os_state) {
6427                         uint32_t i;
6428
6429                         printf(" ");
6430                         for (i = 0; i < ARRAY_SIZE(oss_names); i++) {
6431                                 if (oss_names[i].osn_state & stat->os_state &&
6432                                     (oss_names[i].osn_err ||
6433                                      flags & MNTDF_VERBOSE))
6434                                         printf("%c", oss_names[i].osn_name);
6435                         }
6436                 }
6437
6438                 printf("\n");
6439                 break;
6440         case -ENODATA:
6441                 printf(UUF": inactive device\n", uuid);
6442                 break;
6443         default:
6444                 printf(UUF": %s\n", uuid, strerror(-rc));
6445                 break;
6446         }
6447
6448         return 0;
6449 }
6450
6451 struct ll_stat_type {
6452         int   st_op;
6453         char *st_name;
6454 };
6455
6456 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
6457
6458 struct ll_statfs_data {
6459         int                     sd_index;
6460         struct obd_statfs       sd_st;
6461 };
6462
6463 struct ll_statfs_buf {
6464         int                     sb_count;
6465         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
6466 };
6467
6468 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
6469                  int ops, struct ll_statfs_buf *lsb)
6470 {
6471         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
6472         struct obd_uuid uuid_buf;
6473         char *poolname = NULL;
6474         struct ll_stat_type types[] = {
6475                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
6476                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
6477                 { .st_name = NULL } };
6478         struct ll_stat_type *tp;
6479         __u64 ost_files = 0;
6480         __u64 ost_ffree = 0;
6481         __u32 index;
6482         __u32 type;
6483         int fd;
6484         int rc = 0;
6485         int rc2;
6486
6487         if (pool) {
6488                 poolname = strchr(pool, '.');
6489                 if (poolname) {
6490                         if (strncmp(fsname, pool, strlen(fsname))) {
6491                                 fprintf(stderr, "filesystem name incorrect\n");
6492                                 return -ENODEV;
6493                         }
6494                         poolname++;
6495                 } else
6496                         poolname = pool;
6497         }
6498
6499         fd = open(mntdir, O_RDONLY);
6500         if (fd < 0) {
6501                 rc = -errno;
6502                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
6503                         strerror(errno));
6504                 return rc;
6505         }
6506
6507         if (flags & MNTDF_SHOW) {
6508                 if (flags & MNTDF_INODES)
6509                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6510                                "UUID", "Inodes", "IUsed", "IFree",
6511                                "IUse%", "Mounted on");
6512                 else
6513                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
6514                                "UUID",
6515                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
6516                                "Used", "Available", "Use%", "Mounted on");
6517         }
6518
6519         for (tp = types; tp->st_name != NULL; tp++) {
6520                 bool have_ost = false;
6521
6522                 if (!(tp->st_op & ops))
6523                         continue;
6524
6525                 for (index = 0; ; index++) {
6526                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
6527                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
6528                         type = flags & MNTDF_LAZY ?
6529                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
6530                         rc2 = llapi_obd_fstatfs(fd, type, index,
6531                                                &stat_buf, &uuid_buf);
6532                         if (rc2 == -ENODEV)
6533                                 break;
6534                         if (rc2 == -EAGAIN)
6535                                 continue;
6536                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
6537                                 if (!(flags & MNTDF_VERBOSE))
6538                                         continue;
6539                         } else if (rc2 < 0 && rc == 0) {
6540                                 rc = rc2;
6541                         }
6542
6543                         /*
6544                          * If we have OSTs then don't report MDT block counts.
6545                          * For MDT-only filesystems the expectation is that all
6546                          * layouts have a DoM component.  For filesystems with
6547                          * OSTs, files are not necessarily going to store data
6548                          * on MDTs, and MDT space is limited to a fraction of
6549                          * OST space, so don't include it in the summary.
6550                          */
6551                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
6552                                 have_ost = true;
6553                                 sum.os_blocks = 0;
6554                                 sum.os_bfree = 0;
6555                                 sum.os_bavail = 0;
6556                         }
6557
6558                         if (poolname && tp->st_op == LL_STATFS_LOV &&
6559                             llapi_search_ost(fsname, poolname,
6560                                              obd_uuid2str(&uuid_buf)) != 1)
6561                                 continue;
6562
6563                         /*
6564                          * the llapi_obd_fstatfs() call may have returned with
6565                          * an error, but if it filled in uuid_buf we will at
6566                          * lease use that to print out a message for that OBD.
6567                          * If we didn't get anything in the uuid_buf, then fill
6568                          * it in so that we can print an error message.
6569                          */
6570                         if (uuid_buf.uuid[0] == '\0')
6571                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
6572                                          "%s%04x", tp->st_name, index);
6573                         if (!rc && lsb) {
6574                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
6575                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
6576                                 lsb->sb_count++;
6577                         }
6578                         if (flags & MNTDF_SHOW)
6579                                 showdf(mntdir, &stat_buf,
6580                                        obd_uuid2str(&uuid_buf), flags,
6581                                        tp->st_name, index, rc2);
6582
6583                         if (rc2)
6584                                 continue;
6585
6586                         if (tp->st_op == LL_STATFS_LMV) {
6587                                 sum.os_ffree += stat_buf.os_ffree;
6588                                 sum.os_files += stat_buf.os_files;
6589                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
6590                                 ost_files += stat_buf.os_files;
6591                                 ost_ffree += stat_buf.os_ffree;
6592                         }
6593                         sum.os_blocks += stat_buf.os_blocks *
6594                                          stat_buf.os_bsize;
6595                         sum.os_bfree  += stat_buf.os_bfree *
6596                                          stat_buf.os_bsize;
6597                         sum.os_bavail += stat_buf.os_bavail *
6598                                          stat_buf.os_bsize;
6599                 }
6600         }
6601
6602         close(fd);
6603
6604         /*
6605          * If we have _some_ OSTs, but don't have as many free objects on the
6606          * OST as inodes on the MDTs, reduce the reported number of inodes
6607          * to compensate, so that the "inodes in use" number is correct.
6608          * This should be kept in sync with ll_statfs_internal().
6609          */
6610         if (ost_files && ost_ffree < sum.os_ffree) {
6611                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
6612                 sum.os_ffree = ost_ffree;
6613         }
6614         if (flags & MNTDF_SHOW) {
6615                 printf("\n");
6616                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
6617                 printf("\n");
6618         }
6619
6620         return rc;
6621 }
6622
6623 enum {
6624         LAYOUT_INHERIT_UNSET    = -2,
6625 };
6626
6627 /* functions */
6628 static int lfs_setdirstripe(int argc, char **argv)
6629 {
6630         char *dname;
6631         struct lfs_setstripe_args lsa = { 0 };
6632         struct llapi_stripe_param *param = NULL;
6633         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
6634         char *end;
6635         int c;
6636         char *mode_opt = NULL;
6637         bool default_stripe = false;
6638         bool delete = false;
6639         bool foreign_mode = false;
6640         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
6641         mode_t previous_mode = 0;
6642         char *xattr = NULL;
6643         __u32 type = LU_FOREIGN_TYPE_SYMLINK, flags = 0;
6644         int max_inherit = LAYOUT_INHERIT_UNSET;
6645         int max_inherit_rr = LAYOUT_INHERIT_UNSET;
6646         struct option long_opts[] = {
6647         { .val = 'c',   .name = "count",        .has_arg = required_argument },
6648         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
6649         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
6650         { .val = 'D',   .name = "default",      .has_arg = no_argument },
6651         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
6652         { .val = LFS_LAYOUT_FLAGS_OPT,
6653                         .name = "flags",        .has_arg = required_argument },
6654         { .val = LFS_LAYOUT_FOREIGN_OPT,
6655                         .name = "foreign",      .has_arg = optional_argument},
6656         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6657         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
6658 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
6659         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
6660         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
6661 #else
6662 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
6663         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6664         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6665 #endif
6666 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6667         { .val = 'i',   .name = "index",        .has_arg = required_argument },
6668 #endif
6669         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
6670 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6671         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
6672 #endif
6673         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
6674         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
6675         { .val = 'X',   .name = "max-inherit",  .has_arg = required_argument },
6676         { .val = LFS_INHERIT_RR_OPT,
6677                         .name = "max-inherit-rr", .has_arg = required_argument},
6678 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
6679         { .name = NULL } };
6680         int result = 0;
6681
6682         setstripe_args_init(&lsa);
6683
6684         while ((c = getopt_long(argc, argv, "c:dDi:hH:m:o:t:T:x:X:",
6685                                 long_opts, NULL)) >= 0) {
6686                 switch (c) {
6687                 case 0:
6688                         /* Long options. */
6689                         break;
6690                 case 'c':
6691                 case 'T':
6692                         errno = 0;
6693                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
6694                         if (errno != 0 || *end != '\0' ||
6695                             lsa.lsa_stripe_count < -1 ||
6696                             lsa.lsa_stripe_count > LOV_MAX_STRIPE_COUNT) {
6697                                 fprintf(stderr,
6698                                         "%s: invalid stripe count '%s'\n",
6699                                         progname, optarg);
6700                                 return CMD_HELP;
6701                         }
6702                         break;
6703                 case 'd':
6704                         delete = true;
6705                         default_stripe = true;
6706                         break;
6707                 case 'D':
6708                         default_stripe = true;
6709                         break;
6710                 case LFS_LAYOUT_FOREIGN_OPT:
6711                         if (optarg) {
6712                                 /* check pure numeric */
6713                                 type = strtoul(optarg, &end, 0);
6714                                 if (*end) {
6715                                         /* check name */
6716                                         type = check_foreign_type_name(optarg);
6717                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
6718                                                 fprintf(stderr,
6719                                                         "%s %s: unknown foreign type '%s'\n",
6720                                                         progname, argv[0],
6721                                                         optarg);
6722                                                 return CMD_HELP;
6723                                         }
6724                                 } else if (type >= UINT32_MAX) {
6725                                         fprintf(stderr,
6726                                                 "%s %s: invalid foreign type '%s'\n",
6727                                                 progname, argv[0], optarg);
6728                                         return CMD_HELP;
6729                                 }
6730                         }
6731                         foreign_mode = true;
6732                         break;
6733                 case LFS_LAYOUT_FLAGS_OPT:
6734                         errno = 0;
6735                         flags = strtoul(optarg, &end, 16);
6736                         if (errno != 0 || *end != '\0' ||
6737                             flags >= UINT32_MAX) {
6738                                 fprintf(stderr,
6739                                         "%s %s: invalid hex flags '%s'\n",
6740                                         progname, argv[0], optarg);
6741                                 return CMD_HELP;
6742                         }
6743                         if (!foreign_mode) {
6744                                 fprintf(stderr,
6745                                         "%s %s: hex flags must be specified with --foreign option\n",
6746                                         progname, argv[0]);
6747                                 return CMD_HELP;
6748                         }
6749                         break;
6750 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6751                 case 't':
6752                         fprintf(stderr,
6753                                 "warning: '--hash-type' and '-t' deprecated, use '--mdt-hash' or '-H' instead\n");
6754                         fallthrough;
6755 #endif
6756                 case 'H':
6757                         lsa.lsa_pattern = check_hashtype(optarg);
6758                         if (lsa.lsa_pattern == 0) {
6759                                 fprintf(stderr,
6760                                         "%s %s: bad stripe hash type '%s'\n",
6761                                         progname, argv[0], optarg);
6762                                 return CMD_HELP;
6763                         }
6764                         break;
6765                 case 'i':
6766 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
6767                 case 'm':
6768 #endif
6769 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6770                         if (strcmp(argv[optind - 1], "--index") == 0)
6771                                 fprintf(stderr,
6772                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
6773                                         progname, argv[0]);
6774 #endif
6775                         lsa.lsa_nr_tgts = parse_targets(mdts,
6776                                                 sizeof(mdts) / sizeof(__u32),
6777                                                 lsa.lsa_nr_tgts, optarg, NULL);
6778                         if (lsa.lsa_nr_tgts < 0) {
6779                                 fprintf(stderr,
6780                                         "%s %s: invalid MDT target(s) '%s'\n",
6781                                         progname, argv[0], optarg);
6782                                 return CMD_HELP;
6783                         }
6784
6785                         lsa.lsa_tgts = mdts;
6786                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6787                                 lsa.lsa_stripe_off = mdts[0];
6788                         break;
6789 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
6790                 case 'm':
6791                         fprintf(stderr,
6792                                 "warning: '-m' is deprecated, use '--mode' or '-o' instead\n");
6793 #endif
6794                 case 'o':
6795                         mode_opt = optarg;
6796                         break;
6797                 case 'x':
6798                         xattr = optarg;
6799                         break;
6800                 case 'X':
6801                         errno = 0;
6802                         max_inherit = strtol(optarg, &end, 10);
6803                         if (errno != 0 || *end != '\0' || max_inherit < -2) {
6804                                 fprintf(stderr,
6805                                         "%s %s: invalid max-inherit '%s'\n",
6806                                         progname, argv[0], optarg);
6807                                 return CMD_HELP;
6808                         }
6809                         if (max_inherit == 0) {
6810                                 max_inherit = LMV_INHERIT_NONE;
6811                         } else if (max_inherit == -1) {
6812                                 max_inherit = LMV_INHERIT_UNLIMITED;
6813                         } else if (max_inherit > LMV_INHERIT_MAX) {
6814                                 fprintf(stderr,
6815                                         "%s %s: max-inherit %d exceeds maximum %u\n",
6816                                         progname, argv[0], max_inherit,
6817                                         LMV_INHERIT_MAX);
6818                                 return CMD_HELP;
6819                         }
6820                         break;
6821                 case LFS_INHERIT_RR_OPT:
6822                         if (!default_stripe) {
6823                                 fprintf(stderr,
6824                                         "%s %s: '--max-inherit-rr' must be specified with '-D'\n",
6825                                         progname, argv[0]);
6826                                 return CMD_HELP;
6827                         }
6828                         errno = 0;
6829                         max_inherit_rr = strtol(optarg, &end, 10);
6830                         if (errno != 0 || *end != '\0' || max_inherit_rr < -2) {
6831                                 fprintf(stderr,
6832                                         "%s %s: invalid max-inherit-rr '%s'\n",
6833                                         progname, argv[0], optarg);
6834                                 return CMD_HELP;
6835                         }
6836                         if (max_inherit_rr == 0) {
6837                                 max_inherit_rr = LMV_INHERIT_RR_NONE;
6838                         } else if (max_inherit_rr == -1) {
6839                                 max_inherit_rr = LMV_INHERIT_RR_UNLIMITED;
6840                         } else if (max_inherit_rr > LMV_INHERIT_RR_MAX) {
6841                                 fprintf(stderr,
6842                                         "%s %s: max-inherit-rr %d exceeds maximum %u\n",
6843                                         progname, argv[0], max_inherit_rr,
6844                                         LMV_INHERIT_RR_MAX);
6845                                 return CMD_HELP;
6846                         }
6847                         break;
6848                 default:
6849                         fprintf(stderr, "%s: unrecognized option '%s'\n",
6850                                 progname, argv[optind - 1]);
6851                         fallthrough;
6852                 case 'h':
6853                         return CMD_HELP;
6854                 }
6855         }
6856
6857         if (optind == argc) {
6858                 fprintf(stderr, "%s %s: DIR must be specified\n",
6859                         progname, argv[0]);
6860                 return CMD_HELP;
6861         }
6862
6863         if (xattr && !foreign_mode) {
6864                 /*
6865                  * only print a warning as this is armless and will be
6866                  * ignored
6867                  */
6868                 fprintf(stderr,
6869                         "%s %s: xattr has been specified for non-foreign layout\n",
6870                         progname, argv[0]);
6871         } else if (foreign_mode && !xattr) {
6872                 fprintf(stderr,
6873                         "%s %s: xattr must be provided in foreign mode\n",
6874                         progname, argv[0]);
6875                 return CMD_HELP;
6876         }
6877
6878         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
6879             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
6880                 fprintf(stderr,
6881                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
6882                         progname, argv[0]);
6883                 return CMD_HELP;
6884         }
6885
6886         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
6887             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
6888                 /* if no parameters set, create directory on least-used MDTs */
6889                 lsa.lsa_stripe_off = LMV_OFFSET_DEFAULT;
6890                 lsa.lsa_stripe_count = 1;
6891         }
6892
6893         if (delete &&
6894             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
6895              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
6896                 fprintf(stderr,
6897                         "%s %s: cannot specify -d with -c or -i options\n",
6898                         progname, argv[0]);
6899                 return CMD_HELP;
6900         }
6901
6902         if (mode_opt) {
6903                 mode = strtoul(mode_opt, &end, 8);
6904                 if (*end != '\0') {
6905                         fprintf(stderr,
6906                                 "%s %s: bad MODE '%s'\n",
6907                                 progname, argv[0], mode_opt);
6908                         return CMD_HELP;
6909                 }
6910                 previous_mode = umask(0);
6911         }
6912
6913         /* check max-inherit and warn user in some cases */
6914         if (default_stripe &&
6915             (lsa.lsa_stripe_count < 0 || lsa.lsa_stripe_count > 1)) {
6916                 if (max_inherit == LMV_INHERIT_UNLIMITED)
6917                         fprintf(stderr,
6918                         "%s %s: unrecommended max-inherit=-1 when default stripe-count=%lld\n",
6919                         progname, argv[0], lsa.lsa_stripe_count);
6920                 else if (max_inherit > LMV_INHERIT_DEFAULT_STRIPED + 2 &&
6921                          max_inherit != LMV_INHERIT_NONE)
6922                         fprintf(stderr,
6923                                 "%s %s: unrecommended max-inherit=%d when default stripe-count=%lld\n",
6924                                 progname, argv[0], max_inherit,
6925                                 lsa.lsa_stripe_count);
6926         }
6927
6928         if (max_inherit_rr != LAYOUT_INHERIT_UNSET &&
6929             lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
6930             lsa.lsa_stripe_off != LMV_OFFSET_DEFAULT) {
6931                 fprintf(stderr,
6932                         "%s %s: max-inherit-rr needs mdt-index=-1, not %lld\n",
6933                         progname, argv[0], lsa.lsa_stripe_off);
6934                 return CMD_HELP;
6935         }
6936
6937         /* foreign LMV/dir case */
6938         if (foreign_mode) {
6939                 if (argc > optind + 1) {
6940                         fprintf(stderr,
6941                                 "%s %s: cannot specify multiple foreign dirs\n",
6942                                 progname, argv[0]);
6943                         return CMD_HELP;
6944                 }
6945
6946                 dname = argv[optind];
6947                 result = llapi_dir_create_foreign(dname, mode, type, flags,
6948                                                   xattr);
6949                 if (result != 0)
6950                         fprintf(stderr,
6951                                 "%s mkdir: can't create foreign dir '%s': %s\n",
6952                                 progname, dname, strerror(-result));
6953                 return result;
6954         }
6955
6956         /*
6957          * initialize stripe parameters, in case param is converted to specific,
6958          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
6959          */
6960         param = calloc(1, offsetof(typeof(*param),
6961                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
6962                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
6963         if (!param) {
6964                 fprintf(stderr,
6965                         "%s %s: cannot allocate memory for parameters: %s\n",
6966                         progname, argv[0], strerror(ENOMEM));
6967                 return CMD_HELP;
6968         }
6969
6970         /* if "lfs setdirstripe -D -i -1" is used, assume 1-stripe directory */
6971         if (default_stripe && lsa.lsa_stripe_off == LMV_OFFSET_DEFAULT &&
6972             (lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT ||
6973              lsa.lsa_stripe_count == 0))
6974                 lsa.lsa_stripe_count = 1;
6975         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
6976                 param->lsp_stripe_count = lsa.lsa_stripe_count;
6977         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6978                 param->lsp_stripe_offset = LMV_OFFSET_DEFAULT;
6979         else
6980                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
6981         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
6982                 param->lsp_stripe_pattern = lsa.lsa_pattern;
6983         else
6984                 param->lsp_stripe_pattern = LMV_HASH_TYPE_UNKNOWN;
6985         param->lsp_pool = lsa.lsa_pool_name;
6986         param->lsp_is_specific = false;
6987         if (max_inherit == LAYOUT_INHERIT_UNSET) {
6988                 if (lsa.lsa_stripe_count == 0 || lsa.lsa_stripe_count == 1)
6989                         max_inherit = LMV_INHERIT_DEFAULT_PLAIN;
6990                 else
6991                         max_inherit = LMV_INHERIT_DEFAULT_STRIPED;
6992         }
6993         param->lsp_max_inherit = max_inherit;
6994         if (default_stripe) {
6995
6996                 if (max_inherit_rr == LAYOUT_INHERIT_UNSET)
6997                         max_inherit_rr = LMV_INHERIT_RR_DEFAULT;
6998                 param->lsp_max_inherit_rr = max_inherit_rr;
6999         }
7000         if (strcmp(argv[0], "mkdir") == 0)
7001                 param->lsp_is_create = true;
7002         if (lsa.lsa_nr_tgts > 1) {
7003                 if (lsa.lsa_stripe_count > 0 &&
7004                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
7005                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
7006                         fprintf(stderr,
7007                                 "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
7008                                 argv[0], lsa.lsa_stripe_count,
7009                                 lsa.lsa_nr_tgts);
7010                         free(param);
7011                         return CMD_HELP;
7012                 }
7013
7014                 param->lsp_is_specific = true;
7015                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
7016                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
7017         }
7018
7019         dname = argv[optind];
7020         do {
7021                 if (default_stripe) {
7022                         result = llapi_dir_set_default_lmv(dname, param);
7023                         if (result)
7024                                 fprintf(stderr,
7025                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
7026                                         progname, dname, strerror(-result));
7027                         continue;
7028                 }
7029
7030                 result = llapi_dir_create(dname, mode, param);
7031                 if (result)
7032                         fprintf(stderr,
7033                                 "%s setdirstripe: cannot create dir '%s': %s\n",
7034                                 progname, dname, strerror(-result));
7035         } while (!result && (dname = argv[++optind]));
7036
7037         if (mode_opt)
7038                 umask(previous_mode);
7039
7040         free(param);
7041         return result;
7042 }
7043
7044 /* functions */
7045 static int lfs_rmentry(int argc, char **argv)
7046 {
7047         char *dname;
7048         int   index;
7049         int   result = 0;
7050
7051         if (argc <= 1) {
7052                 fprintf(stderr, "error: %s: missing dirname\n",
7053                         argv[0]);
7054                 return CMD_HELP;
7055         }
7056
7057         index = 1;
7058         dname = argv[index];
7059         while (dname) {
7060                 result = llapi_direntry_remove(dname);
7061                 if (result) {
7062                         fprintf(stderr,
7063                                 "error: %s: remove dir entry '%s' failed\n",
7064                                 argv[0], dname);
7065                         break;
7066                 }
7067                 dname = argv[++index];
7068         }
7069         return result;
7070 }
7071
7072 static int lfs_unlink_foreign(int argc, char **argv)
7073 {
7074         char *name;
7075         int   index;
7076         int   result = 0;
7077
7078         if (argc <= 1) {
7079                 fprintf(stderr, "error: %s: missing pathname\n",
7080                         argv[0]);
7081                 return CMD_HELP;
7082         }
7083
7084         index = 1;
7085         name = argv[index];
7086         while (name != NULL) {
7087                 result = llapi_unlink_foreign(name);
7088                 if (result) {
7089                         fprintf(stderr,
7090                                 "error: %s: unlink foreign entry '%s' failed\n",
7091                                 argv[0], name);
7092                         break;
7093                 }
7094                 name = argv[++index];
7095         }
7096         return result;
7097 }
7098
7099 static int lfs_mv(int argc, char **argv)
7100 {
7101         struct lmv_user_md lmu = { LMV_USER_MAGIC };
7102         struct find_param param = {
7103                 .fp_max_depth = -1,
7104                 .fp_mdt_index = -1,
7105         };
7106         char *end;
7107         int c;
7108         int rc = 0;
7109         struct option long_opts[] = {
7110         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
7111         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
7112         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
7113         { .name = NULL } };
7114
7115         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
7116                 switch (c) {
7117 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7118                 case 'M':
7119                         fprintf(stderr,
7120                                 "warning: '-M' deprecated, use '--mdt-index' or '-m' instead\n");
7121 #endif
7122                 case 'm':
7123                         errno = 0;
7124                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
7125                         if (errno != 0 || *end != '\0' ||
7126                             lmu.lum_stripe_offset >= UINT32_MAX) {
7127                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
7128                                         progname, optarg);
7129                                 return CMD_HELP;
7130                         }
7131                         break;
7132                 case 'v':
7133                         param.fp_verbose = VERBOSE_DETAIL;
7134                         break;
7135                 default:
7136                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
7137                                 progname, argv[optind - 1]);
7138                         return CMD_HELP;
7139                 }
7140         }
7141
7142         if (lmu.lum_stripe_offset == LMV_OFFSET_DEFAULT) {
7143                 fprintf(stderr, "%s mv: MDT index must be specified\n",
7144                         progname);
7145                 return CMD_HELP;
7146         }
7147
7148         if (optind >= argc) {
7149                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
7150                 return CMD_HELP;
7151         }
7152
7153         lmu.lum_hash_type = LMV_HASH_TYPE_UNKNOWN;
7154
7155         /* initialize migrate mdt parameters */
7156         param.fp_lmv_md = &lmu;
7157         param.fp_migrate = 1;
7158         rc = llapi_migrate_mdt(argv[optind], &param);
7159         if (rc != 0)
7160                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
7161                         progname, argv[optind], lmu.lum_stripe_offset,
7162                         strerror(-rc));
7163         return rc;
7164 }
7165
7166 static int lfs_osts(int argc, char **argv)
7167 {
7168         return lfs_tgts(argc, argv);
7169 }
7170
7171 static int lfs_mdts(int argc, char **argv)
7172 {
7173         return lfs_tgts(argc, argv);
7174 }
7175
7176 static int lfs_df(int argc, char **argv)
7177 {
7178         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
7179         enum mntdf_flags flags = MNTDF_SHOW;
7180         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
7181         int c, rc = 0, rc1 = 0, index = 0, arg_idx = 0;
7182         char fsname[PATH_MAX] = "", *pool_name = NULL;
7183         struct option long_opts[] = {
7184         { .val = 'h',   .name = "human-readable", .has_arg = no_argument },
7185         { .val = 'H',   .name = "si",           .has_arg = no_argument },
7186         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
7187         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
7188         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
7189         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
7190         { .name = NULL} };
7191
7192         while ((c = getopt_long(argc, argv, "hHilp:v", long_opts, NULL)) != -1) {
7193                 switch (c) {
7194                 case 'h':
7195                         flags = (flags & ~MNTDF_DECIMAL) | MNTDF_COOKED;
7196                         break;
7197                 case 'H':
7198                         flags |= MNTDF_COOKED | MNTDF_DECIMAL;
7199                         break;
7200                 case 'i':
7201                         flags |= MNTDF_INODES;
7202                         break;
7203                 case 'l':
7204                         flags |= MNTDF_LAZY;
7205                         break;
7206                 case 'p':
7207                         pool_name = optarg;
7208                         break;
7209                 case 'v':
7210                         flags |= MNTDF_VERBOSE;
7211                         break;
7212                 default:
7213                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7214                                 progname, argv[optind - 1]);
7215                         return CMD_HELP;
7216                 }
7217         }
7218
7219         /* Handle case where path is not specified */
7220         if (optind == argc) {
7221                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7222                         /* Check if we have a mount point */
7223                         if (mntdir[0] == '\0')
7224                                 continue;
7225
7226                         rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
7227                         if (rc || path[0] != '\0')
7228                                 break;
7229
7230                         fsname[0] = '\0'; /* avoid matching in next loop */
7231                         mntdir[0] = '\0'; /* avoid matching in next loop */
7232                         path[0] = '\0'; /* clean for next loop */
7233                 }
7234                 return rc;
7235         }
7236
7237         /* Loop through all the remaining arguments. These are Lustre FS
7238          * paths.
7239          */
7240         for (arg_idx = optind; arg_idx <= argc - 1; arg_idx++) {
7241                 bool valid = false;
7242
7243                 fsname[0] = '\0'; /* start clean */
7244                 mntdir[0] = '\0'; /* start clean */
7245                 path[0] = '\0';   /* start clean */
7246
7247                 /* path does not exists at all */
7248                 if (!realpath(argv[arg_idx], path)) {
7249                         rc = -errno;
7250                         fprintf(stderr, "error: invalid path '%s': %s\n",
7251                                 argv[arg_idx], strerror(-rc));
7252                         /* save first seen error */
7253                         if (!rc1)
7254                                 rc1 = rc;
7255
7256                         continue;
7257                 }
7258
7259                 /* path exists but may not be a Lustre filesystem */
7260                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7261                         /* Check if we have a mount point */
7262                         if (mntdir[0] == '\0')
7263                                 continue;
7264
7265                         rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
7266                         if (rc || path[0] != '\0') {
7267                                 valid = true;
7268
7269                                 /* save first seen error */
7270                                 if (!rc1)
7271                                         rc1 = rc;
7272                                 break;
7273                         }
7274                 }
7275
7276                 if (!valid) {
7277                         llapi_printf(LLAPI_MSG_ERROR,
7278                                      "%s:%s Not a Lustre filesystem\n",
7279                                      argv[0], argv[arg_idx]);
7280                         /* save first seen error */
7281                         if (!rc1)
7282                                 rc1 = -EOPNOTSUPP;
7283                 }
7284         }
7285
7286         return rc1;
7287 }
7288
7289 static int print_instance(const char *mntdir, char *buf, size_t buflen,
7290                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
7291 {
7292         int rc = 0;
7293
7294         if (opt_fsname == opt_instance) { /* both true or both false */
7295                 rc = llapi_getname(mntdir, buf, buflen);
7296         } else if (opt_fsname) {
7297                 /*
7298                  * llapi_search_mounts() fills @buf with fsname, but that is not
7299                  * called if explicit paths are specified on the command-line
7300                  */
7301                 if (buf[0] == '\0')
7302                         rc = llapi_get_fsname(mntdir, buf, buflen);
7303         } else /* if (opt_instance) */ {
7304                 rc = llapi_get_instance(mntdir, buf, buflen);
7305         }
7306
7307         if (rc < 0) {
7308                 fprintf(stderr, "cannot get instance for '%s': %s\n",
7309                         mntdir, strerror(-rc));
7310                 return rc;
7311         }
7312
7313         if (opt_mntdir)
7314                 printf("%s %s\n", buf, mntdir);
7315         else
7316                 printf("%s\n", buf);
7317
7318         return 0;
7319 }
7320
7321 static int lfs_getname(int argc, char **argv)
7322 {
7323         struct option long_opts[] = {
7324         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7325         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
7326         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
7327         { .name = NULL} };
7328         bool opt_instance = false, opt_fsname = false;
7329         char fsname[PATH_MAX] = "";
7330         int rc = 0, rc2, c;
7331
7332         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
7333                 switch (c) {
7334                 case 'i':
7335                         opt_instance = true;
7336                         break;
7337                 case 'n':
7338                         opt_fsname = true;
7339                         break;
7340                 default:
7341                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7342                                 progname, argv[optind - 1]);
7343                         fallthrough;
7344                 case 'h':
7345                         return CMD_HELP;
7346                 }
7347         }
7348
7349         if (optind == argc) { /* no paths specified, get all paths. */
7350                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
7351                 int index = 0;
7352
7353                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
7354                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
7355                                              opt_instance, opt_fsname, true);
7356                         if (!rc)
7357                                 rc = rc2;
7358                         path[0] = fsname[0] = mntdir[0] = '\0';
7359                 }
7360         } else { /* paths specified, only attempt to search these. */
7361                 bool opt_mntdir;
7362
7363                 /* if only one path is given, print only requested info */
7364                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
7365
7366                 for (; optind < argc; optind++) {
7367                         rc2 = print_instance(argv[optind], fsname,
7368                                              sizeof(fsname), opt_instance,
7369                                              opt_fsname, opt_mntdir);
7370                         if (!rc)
7371                                 rc = rc2;
7372                         fsname[0] = '\0';
7373                 }
7374         }
7375
7376         return rc;
7377 }
7378
7379 static int lfs_check(int argc, char **argv)
7380 {
7381         char mntdir[PATH_MAX] = {'\0'};
7382         int num_types = 1;
7383         char *obd_types[3];
7384         char obd_type1[4];
7385         char obd_type2[4];
7386         char obd_type3[4];
7387         int rc;
7388
7389         if (argc != 2) {
7390                 fprintf(stderr, "%s check: server type must be specified\n",
7391                         progname);
7392                 return CMD_HELP;
7393         }
7394
7395         obd_types[0] = obd_type1;
7396         obd_types[1] = obd_type2;
7397         obd_types[2] = obd_type3;
7398
7399         if (strcmp(argv[1], "osts") == 0) {
7400                 strcpy(obd_types[0], "osc");
7401         } else if (strcmp(argv[1], "mdts") == 0 ||
7402                    strcmp(argv[1], "mds") == 0) {
7403                 strcpy(obd_types[0], "mdc");
7404         } else if (strcmp(argv[1], "mgts") == 0) {
7405                 strcpy(obd_types[0], "mgc");
7406         } else if (strcmp(argv[1], "all") == 0 ||
7407                    strcmp(argv[1], "servers") == 0) {
7408                 num_types = 3;
7409                 strcpy(obd_types[0], "osc");
7410                 strcpy(obd_types[1], "mdc");
7411                 strcpy(obd_types[2], "mgc");
7412         } else {
7413                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
7414                         progname, argv[1]);
7415                 return CMD_HELP;
7416         }
7417
7418         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
7419         if (rc < 0 || mntdir[0] == '\0') {
7420                 fprintf(stderr,
7421                         "%s check: cannot find mounted Lustre filesystem: %s\n",
7422                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
7423                 return rc;
7424         }
7425
7426         rc = llapi_target_check(num_types, obd_types, mntdir);
7427         if (rc)
7428                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
7429                         progname, argv[1], strerror(-rc));
7430
7431         return rc;
7432 }
7433
7434 #ifdef HAVE_SYS_QUOTA_H
7435 #define ADD_OVERFLOW(a, b) \
7436                      ((((a) + (b)) < (a)) ? \
7437                       ((a) = ULONG_MAX) : ((a) = (a) + (b)))
7438
7439 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
7440  * returns the value or ULONG_MAX on integer overflow or incorrect format
7441  * Notes:
7442  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
7443  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
7444  *        3. empty integer value is interpreted as 0
7445  */
7446 static unsigned long str2sec(const char *timestr)
7447 {
7448         const char spec[] = "smhdw";
7449         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
7450         unsigned long val = 0;
7451         char *tail;
7452
7453         if (strpbrk(timestr, spec) == NULL) {
7454                 /*
7455                  * no specifiers inside the time string,
7456                  * should treat it as an integer value
7457                  */
7458                 val = strtoul(timestr, &tail, 10);
7459                 return *tail ? ULONG_MAX : val;
7460         }
7461
7462         /* format string is XXwXXdXXhXXmXXs */
7463         while (*timestr) {
7464                 unsigned long v;
7465                 int ind;
7466                 char *ptr;
7467
7468                 v = strtoul(timestr, &tail, 10);
7469                 if (v == ULONG_MAX || *tail == '\0')
7470                         /*
7471                          * value too large (ULONG_MAX or more)
7472                          * or missing specifier
7473                          */
7474                         goto error;
7475
7476                 ptr = strchr(spec, *tail);
7477                 if (!ptr)
7478                         /* unknown specifier */
7479                         goto error;
7480
7481                 ind = ptr - spec;
7482
7483                 /* check if product will overflow the type */
7484                 if (!(v < ULONG_MAX / mult[ind]))
7485                         goto error;
7486
7487                 ADD_OVERFLOW(val, mult[ind] * v);
7488                 if (val == ULONG_MAX)
7489                         goto error;
7490
7491                 timestr = tail + 1;
7492         }
7493
7494         return val;
7495
7496 error:
7497         return ULONG_MAX;
7498 }
7499
7500 #define ARG2ULL(nr, str, def_units)                                     \
7501 do {                                                                    \
7502         unsigned long long limit, units = def_units;                    \
7503         int rc;                                                         \
7504                                                                         \
7505         rc = llapi_parse_size(str, &limit, &units, 1);                  \
7506         if (rc < 0) {                                                   \
7507                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
7508                         progname, str);                                 \
7509                 return CMD_HELP;                                        \
7510         }                                                               \
7511         nr = limit;                                                     \
7512 } while (0)
7513
7514 static inline int has_times_option(int argc, char **argv)
7515 {
7516         int i;
7517
7518         for (i = 1; i < argc; i++)
7519                 if (!strcmp(argv[i], "-t"))
7520                         return 1;
7521
7522         return 0;
7523 }
7524
7525 static inline int lfs_verify_poolarg(char *pool)
7526 {
7527         if (strnlen(optarg, LOV_MAXPOOLNAME + 1) > LOV_MAXPOOLNAME) {
7528                 fprintf(stderr,
7529                         "Pool name '%.*s' is longer than %d\n",
7530                         LOV_MAXPOOLNAME, pool, LOV_MAXPOOLNAME);
7531                 return 1;
7532         }
7533         return 0;
7534 }
7535
7536 /* special grace time, only notify the user when its quota is over soft limit
7537  * but doesn't block new writes until the hard limit is reached.
7538  */
7539 #define NOTIFY_GRACE            "notify"
7540 #define NOTIFY_GRACE_TIME       LQUOTA_GRACE_MASK
7541
7542 #ifndef toqb
7543 static inline __u64 lustre_stoqb(size_t space)
7544 {
7545         return (space + QIF_DQBLKSIZE - 1) >> QIF_DQBLKSIZE_BITS;
7546 }
7547 #else
7548 #define lustre_stoqb   toqb
7549 #endif
7550
7551 int lfs_setquota_times(int argc, char **argv, struct if_quotactl *qctl)
7552 {
7553         int c, rc;
7554         char *mnt, *obd_type = (char *)qctl->obd_type;
7555         struct obd_dqblk *dqb = &qctl->qc_dqblk;
7556         struct obd_dqinfo *dqi = &qctl->qc_dqinfo;
7557         struct option long_opts[] = {
7558         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
7559         { .val = 'g',   .name = "group",        .has_arg = no_argument },
7560         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7561         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
7562         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
7563         { .val = 't',   .name = "times",        .has_arg = no_argument },
7564         { .val = 'u',   .name = "user",         .has_arg = no_argument },
7565         { .val = LFS_POOL_OPT,
7566                         .name = "pool",         .has_arg = required_argument },
7567         { .name = NULL } };
7568         int qtype;
7569
7570         qctl->qc_cmd  = LUSTRE_Q_SETINFO;
7571         qctl->qc_type = ALLQUOTA;
7572
7573         while ((c = getopt_long(argc, argv, "b:ghi:ptu",
7574                                 long_opts, NULL)) != -1) {
7575                 switch (c) {
7576                 case 'u':
7577                         qtype = USRQUOTA;
7578                         goto quota_type;
7579                 case 'g':
7580                         qtype = GRPQUOTA;
7581                         goto quota_type;
7582                 case 'p':
7583                         qtype = PRJQUOTA;
7584 quota_type:
7585                         if (qctl->qc_type != ALLQUOTA) {
7586                                 fprintf(stderr,
7587                                         "%s: -u/g/p cannot be used more than once\n",
7588                                         progname);
7589                                 return CMD_HELP;
7590                         }
7591                         qctl->qc_type = qtype;
7592                         break;
7593                 case 'b':
7594                         if (strncmp(optarg, NOTIFY_GRACE,
7595                                     strlen(NOTIFY_GRACE)) == 0) {
7596                                 dqi->dqi_bgrace = NOTIFY_GRACE_TIME;
7597                         } else {
7598                                 dqi->dqi_bgrace = str2sec(optarg);
7599                                 if (dqi->dqi_bgrace >= NOTIFY_GRACE_TIME) {
7600                                         fprintf(stderr,
7601                                                 "%s: bad block-grace: %s\n",
7602                                                 progname, optarg);
7603                                         return CMD_HELP;
7604                                 }
7605                         }
7606                         dqb->dqb_valid |= QIF_BTIME;
7607                         break;
7608                 case 'i':
7609                         if (strncmp(optarg, NOTIFY_GRACE,
7610                                     strlen(NOTIFY_GRACE)) == 0) {
7611                                 dqi->dqi_igrace = NOTIFY_GRACE_TIME;
7612                         } else {
7613                                 dqi->dqi_igrace = str2sec(optarg);
7614                                 if (dqi->dqi_igrace >= NOTIFY_GRACE_TIME) {
7615                                         fprintf(stderr,
7616                                                 "%s: bad inode-grace: %s\n",
7617                                                 progname, optarg);
7618                                         return CMD_HELP;
7619                                 }
7620                         }
7621                         dqb->dqb_valid |= QIF_ITIME;
7622                         break;
7623                 case 't': /* Yes, of course! */
7624                         break;
7625                 case LFS_POOL_OPT:
7626                         if (lfs_verify_poolarg(optarg))
7627                                 return -1;
7628                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7629                         qctl->qc_cmd  = LUSTRE_Q_SETINFOPOOL;
7630                         break;
7631                 /* getopt prints error message for us when opterr != 0 */
7632                 default:
7633                         fprintf(stderr, "%s: unrecognized option '%s'\n",
7634                                 progname, argv[optind - 1]);
7635                         fallthrough;
7636                 case 'h':
7637                         return CMD_HELP;
7638                 }
7639         }
7640
7641         if (qctl->qc_type == ALLQUOTA) {
7642                 fprintf(stderr, "%s: neither -u, -g nor -p specified\n",
7643                         progname);
7644                 return CMD_HELP;
7645         }
7646
7647         if (optind != argc - 1) {
7648                 fprintf(stderr, "%s: unexpected parameter '%s'\n",
7649                         progname, argv[optind + 1]);
7650                 return CMD_HELP;
7651         }
7652
7653         mnt = argv[optind];
7654         rc = llapi_quotactl(mnt, qctl);
7655         if (rc) {
7656                 if (*obd_type)
7657                         fprintf(stderr, "%s %s ", obd_type,
7658                                 obd_uuid2str(&qctl->obd_uuid));
7659                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
7660                 return rc;
7661         }
7662
7663         return 0;
7664 }
7665
7666 #define BSLIMIT (1 << 0)
7667 #define BHLIMIT (1 << 1)
7668 #define ISLIMIT (1 << 2)
7669 #define IHLIMIT (1 << 3)
7670
7671 int lfs_setquota(int argc, char **argv)
7672 {
7673         int c, rc = 0;
7674         struct if_quotactl *qctl;
7675         char *mnt, *obd_type;
7676         struct obd_dqblk *dqb;
7677         struct option long_opts[] = {
7678         { .val = 'b',   .name = "block-softlimit",
7679                                                 .has_arg = required_argument },
7680         { .val = 'B',   .name = "block-hardlimit",
7681                                                 .has_arg = required_argument },
7682         { .val = 'd',   .name = "default",      .has_arg = no_argument },
7683         { .val = LFS_SETQUOTA_DELETE,
7684                         .name = "delete",       .has_arg = no_argument },
7685         { .val = 'g',   .name = "group",        .has_arg = required_argument },
7686         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
7687         { .val = 'h',   .name = "help",         .has_arg = no_argument },
7688         { .val = 'i',   .name = "inode-softlimit",
7689                                                 .has_arg = required_argument },
7690         { .val = 'I',   .name = "inode-hardlimit",
7691                                                 .has_arg = required_argument },
7692         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
7693         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
7694         { .val = 'u',   .name = "user",         .has_arg = required_argument },
7695         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
7696         { .val = LFS_POOL_OPT,
7697                         .name = "pool",         .has_arg = required_argument },
7698         { .name = NULL } };
7699         unsigned int limit_mask = 0;
7700         bool use_default = false;
7701         int qtype, qctl_len;
7702
7703         qctl_len = sizeof(*qctl) + LOV_MAXPOOLNAME + 1;
7704         qctl = malloc(qctl_len);
7705         if (!qctl)
7706                 return -ENOMEM;
7707
7708         memset(qctl, 0, qctl_len);
7709         obd_type = (char *)qctl->obd_type;
7710         dqb = &qctl->qc_dqblk;
7711
7712         if (has_times_option(argc, argv)) {
7713                 rc = lfs_setquota_times(argc, argv, qctl);
7714                 goto out;
7715         }
7716
7717         qctl->qc_cmd  = LUSTRE_Q_SETQUOTA;
7718         qctl->qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
7719                                    * so it can be used as a marker that qc_type
7720                                    * isn't reinitialized from command line
7721                                    */
7722         while ((c = getopt_long(argc, argv, "b:B:dDg:Ghi:I:p:Pu:U",
7723                 long_opts, NULL)) != -1) {
7724                 switch (c) {
7725                 case 'U':
7726                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7727                         qtype = USRQUOTA;
7728                         qctl->qc_id = 0;
7729                         goto quota_type_def;
7730                 case 'u':
7731                         qtype = USRQUOTA;
7732                         rc = name2uid(&qctl->qc_id, optarg);
7733                         goto quota_type;
7734                 case 'G':
7735                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7736                         qtype = GRPQUOTA;
7737                         qctl->qc_id = 0;
7738                         goto quota_type_def;
7739                 case 'g':
7740                         qtype = GRPQUOTA;
7741                         rc = name2gid(&qctl->qc_id, optarg);
7742                         goto quota_type;
7743                 case 'P':
7744                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7745                         qtype = PRJQUOTA;
7746                         qctl->qc_id = 0;
7747                         goto quota_type_def;
7748                 case 'p':
7749                         qtype = PRJQUOTA;
7750                         rc = name2projid(&qctl->qc_id, optarg);
7751 quota_type:
7752                         if (rc) {
7753                                 if (str2quotaid(&qctl->qc_id, optarg)) {
7754                                         fprintf(stderr,
7755                                                 "%s setquota: invalid id '%s'\n",
7756                                                 progname, optarg);
7757                                         rc = -1;
7758                                         goto out;
7759                                 }
7760                         }
7761
7762                         if (qctl->qc_id == 0) {
7763                                 fprintf(stderr,
7764                                         "%s setquota: can't set quota for root usr/group/project.\n",
7765                                         progname);
7766                                 rc = -1;
7767                                 goto out;
7768                         }
7769
7770 quota_type_def:
7771                         if (qctl->qc_type != ALLQUOTA) {
7772                                 fprintf(stderr,
7773                                         "%s setquota: only one of -u, -U, -g, -G, -p or -P may be specified\n",
7774                                         progname);
7775                                 rc = CMD_HELP;
7776                                 goto out;
7777                         }
7778                         qctl->qc_type = qtype;
7779                         break;
7780 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
7781                 case 'd':
7782 #if LUSTRE_VERSION_CODE > OBD_OCD_VERSION(2, 15, 53, 0)
7783                         fprintf(stderr, "'-d' deprecatd, use '-D' or '--default'\n");
7784 #endif
7785                         /* falltrrough */
7786 #endif
7787                 case 'D':
7788                         use_default = true;
7789                         qctl->qc_cmd = LUSTRE_Q_SETDEFAULT;
7790                         break;
7791                 case LFS_SETQUOTA_DELETE:
7792                         qctl->qc_cmd = LUSTRE_Q_DELETEQID;
7793                         break;
7794                 case 'b':
7795                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
7796                         dqb->dqb_bsoftlimit >>= 10;
7797                         limit_mask |= BSLIMIT;
7798                         if (dqb->dqb_bsoftlimit &&
7799                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
7800                                 fprintf(stderr,
7801                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7802                                         progname,
7803                                         (unsigned long long)dqb->dqb_bsoftlimit,
7804                                         progname);
7805                         break;
7806                 case 'B':
7807                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
7808                         dqb->dqb_bhardlimit >>= 10;
7809                         limit_mask |= BHLIMIT;
7810                         if (dqb->dqb_bhardlimit &&
7811                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
7812                                 fprintf(stderr,
7813                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
7814                                         "See '%s help setquota' or Lustre manual for details\n",
7815                                         progname,
7816                                         (unsigned long long)dqb->dqb_bhardlimit,
7817                                         progname);
7818                         break;
7819                 case 'i':
7820                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
7821                         limit_mask |= ISLIMIT;
7822                         if (dqb->dqb_isoftlimit &&
7823                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
7824                                 fprintf(stderr,
7825                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7826                                         progname,
7827                                         (unsigned long long)dqb->dqb_isoftlimit,
7828                                         progname);
7829                         break;
7830                 case 'I':
7831                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
7832                         limit_mask |= IHLIMIT;
7833                         if (dqb->dqb_ihardlimit &&
7834                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
7835                                 fprintf(stderr,
7836                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\nSee '%s help setquota' or Lustre manual for details\n",
7837                                         progname,
7838                                         (unsigned long long)dqb->dqb_ihardlimit,
7839                                         progname);
7840                         break;
7841                 case LFS_POOL_OPT:
7842                         if (lfs_verify_poolarg(optarg)) {
7843                                 rc = -1;
7844                                 goto out;
7845                         }
7846                         strncpy(qctl->qc_poolname, optarg, LOV_MAXPOOLNAME);
7847                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_SETDEFAULT ?
7848                                                 LUSTRE_Q_SETDEFAULT_POOL :
7849                                                 LUSTRE_Q_SETQUOTAPOOL;
7850                         break;
7851                 default:
7852                         fprintf(stderr,
7853                                 "%s setquota: unrecognized option '%s'\n",
7854                                 progname, argv[optind - 1]);
7855                         fallthrough;
7856                 case 'h':
7857                         rc = CMD_HELP;
7858                         goto out;
7859                 }
7860         }
7861
7862         if (qctl->qc_type == ALLQUOTA) {
7863                 fprintf(stderr,
7864                         "%s setquota: either -u or -g must be specified\n",
7865                         progname);
7866                 rc = CMD_HELP;
7867                 goto out;
7868         }
7869
7870         if (!use_default && qctl->qc_cmd != LUSTRE_Q_DELETEQID &&
7871             limit_mask == 0) {
7872                 fprintf(stderr,
7873                         "%s setquota: at least one limit must be specified\n",
7874                         progname);
7875                 rc = CMD_HELP;
7876                 goto out;
7877         }
7878
7879         if ((use_default || qctl->qc_cmd == LUSTRE_Q_DELETEQID)  &&
7880             limit_mask != 0) {
7881                 fprintf(stderr,
7882                         "%s setquota: limits should not be specified when using default quota or deleting quota ID\n",
7883                         progname);
7884                 rc = CMD_HELP;
7885                 goto out;
7886         }
7887
7888         if (use_default && qctl->qc_id == 0) {
7889                 fprintf(stderr,
7890                         "%s setquota: can not set default quota for root user/group/project\n",
7891                         progname);
7892                 rc = CMD_HELP;
7893                 goto out;
7894         }
7895
7896         if (qctl->qc_cmd == LUSTRE_Q_DELETEQID  && qctl->qc_id == 0) {
7897                 fprintf(stderr,
7898                         "%s setquota: can not delete root user/group/project\n",
7899                         progname);
7900                 rc = CMD_HELP;
7901                 goto out;
7902         }
7903
7904         if (optind != argc - 1) {
7905                 fprintf(stderr,
7906                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
7907                         progname, argv[optind]);
7908                 rc = CMD_HELP;
7909                 goto out;
7910         }
7911
7912         mnt = argv[optind];
7913
7914         if (use_default) {
7915                 dqb->dqb_bhardlimit = 0;
7916                 dqb->dqb_bsoftlimit = 0;
7917                 dqb->dqb_ihardlimit = 0;
7918                 dqb->dqb_isoftlimit = 0;
7919                 dqb->dqb_itime = 0;
7920                 dqb->dqb_btime = 0;
7921                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
7922                 /* do not set inode limits for Pool Quotas */
7923                 if (qctl->qc_cmd  == LUSTRE_Q_SETDEFAULT_POOL)
7924                         dqb->dqb_valid ^= QIF_ILIMITS | QIF_ITIME;
7925         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
7926                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
7927                 /* sigh, we can't just set blimits/ilimits */
7928                 struct if_quotactl *tmp_qctl;
7929
7930                 tmp_qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
7931                 if (!tmp_qctl)
7932                         goto out;
7933
7934                 if (qctl->qc_cmd == LUSTRE_Q_SETQUOTAPOOL) {
7935                         tmp_qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
7936                         strncpy(tmp_qctl->qc_poolname, qctl->qc_poolname,
7937                                 LOV_MAXPOOLNAME);
7938                 } else {
7939                         tmp_qctl->qc_cmd  = LUSTRE_Q_GETQUOTA;
7940                 }
7941                 tmp_qctl->qc_type = qctl->qc_type;
7942                 tmp_qctl->qc_id = qctl->qc_id;
7943
7944                 rc = llapi_quotactl(mnt, tmp_qctl);
7945                 if (rc < 0) {
7946                         free(tmp_qctl);
7947                         goto out;
7948                 }
7949
7950                 if (!(limit_mask & BHLIMIT))
7951                         dqb->dqb_bhardlimit = tmp_qctl->qc_dqblk.dqb_bhardlimit;
7952                 if (!(limit_mask & BSLIMIT))
7953                         dqb->dqb_bsoftlimit = tmp_qctl->qc_dqblk.dqb_bsoftlimit;
7954                 if (!(limit_mask & IHLIMIT))
7955                         dqb->dqb_ihardlimit = tmp_qctl->qc_dqblk.dqb_ihardlimit;
7956                 if (!(limit_mask & ISLIMIT))
7957                         dqb->dqb_isoftlimit = tmp_qctl->qc_dqblk.dqb_isoftlimit;
7958
7959                 /* Keep grace times if we have got no softlimit arguments */
7960                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
7961                         dqb->dqb_valid |= QIF_BTIME;
7962                         dqb->dqb_btime = tmp_qctl->qc_dqblk.dqb_btime;
7963                 }
7964
7965                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
7966                         dqb->dqb_valid |= QIF_ITIME;
7967                         dqb->dqb_itime = tmp_qctl->qc_dqblk.dqb_itime;
7968                 }
7969                 free(tmp_qctl);
7970         }
7971
7972         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
7973         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
7974
7975         rc = llapi_quotactl(mnt, qctl);
7976         if (rc) {
7977                 if (*obd_type)
7978                         fprintf(stderr,
7979                                 "%s setquota: cannot quotactl '%s' '%s': %s\n",
7980                                 progname, obd_type,
7981                                 obd_uuid2str(&qctl->obd_uuid), strerror(-rc));
7982                 else
7983                         fprintf(stderr,
7984                                 "%s setquota: quotactl failed: %s\n",
7985                                 progname, strerror(-rc));
7986         }
7987 out:
7988         if (rc)
7989                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
7990
7991         free(qctl);
7992         return rc;
7993 }
7994
7995 /* Converts seconds value into format string
7996  * result is returned in buf
7997  * Notes:
7998  *        1. result is in descenting order: 1w2d3h4m5s
7999  *        2. zero fields are not filled (except for p. 3): 5d1s
8000  *        3. zero seconds value is presented as "0s"
8001  */
8002 static char *__sec2str(time_t seconds, char *buf)
8003 {
8004         const char spec[] = "smhdw";
8005         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
8006         unsigned long c;
8007         char *tail = buf;
8008         int i;
8009
8010         for (i = ARRAY_SIZE(mult) - 1 ; i >= 0; i--) {
8011                 c = seconds / mult[i];
8012
8013                 if (c > 0 || (i == 0 && buf == tail))
8014                         tail += scnprintf(tail, 40-(tail-buf), "%lu%c", c,
8015                                           spec[i]);
8016
8017                 seconds %= mult[i];
8018         }
8019
8020         return tail;
8021 }
8022
8023 static void sec2str(time_t seconds, char *buf, int rc)
8024 {
8025         char *tail = buf;
8026
8027         if (rc)
8028                 *tail++ = '[';
8029
8030         tail = __sec2str(seconds, tail);
8031
8032         if (rc && tail - buf < 39) {
8033                 *tail++ = ']';
8034                 *tail++ = 0;
8035         }
8036 }
8037
8038 static void diff2str(time_t seconds, char *buf, time_t now)
8039 {
8040         buf[0] = 0;
8041         if (!seconds)
8042                 return;
8043         if (seconds <= now) {
8044                 strcpy(buf, "none");
8045                 return;
8046         }
8047         __sec2str(seconds - now, buf);
8048 }
8049
8050 static void print_quota_title(char *name, struct if_quotactl *qctl,
8051                               bool human_readable, bool show_default)
8052 {
8053         if (show_default) {
8054                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
8055                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
8056                        "Filesystem", "bquota", "blimit", "bgrace",
8057                        "iquota", "ilimit", "igrace");
8058         } else {
8059                 printf("Disk quotas for %s %s (%cid %u):\n",
8060                        qtype_name(qctl->qc_type), name,
8061                        *qtype_name(qctl->qc_type), qctl->qc_id);
8062                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
8063                        "Filesystem", human_readable ? "used" : "kbytes",
8064                        "quota", "limit", "grace",
8065                        "files", "quota", "limit", "grace");
8066         }
8067 }
8068
8069 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
8070 {
8071         if (!h) {
8072                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
8073         } else {
8074                 if (num >> 40)
8075                         snprintf(buf, buflen, "%5.4gP",
8076                                  (double)num / ((__u64)1 << 40));
8077                 else if (num >> 30)
8078                         snprintf(buf, buflen, "%5.4gT",
8079                                  (double)num / (1 << 30));
8080                 else if (num >> 20)
8081                         snprintf(buf, buflen, "%5.4gG",
8082                                  (double)num / (1 << 20));
8083                 else if (num >> 10)
8084                         snprintf(buf, buflen, "%5.4gM",
8085                                  (double)num / (1 << 10));
8086                 else
8087                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
8088         }
8089 }
8090
8091 #ifdef HAVE_NATIVE_CLIENT
8092 /* In the current Lustre implementation, the grace time is either the time
8093  * or the timestamp to be used after some quota ID exceeds the soft limt,
8094  * 48 bits should be enough, its high 16 bits can be used as quota flags.
8095  */
8096 #define LQUOTA_GRACE_BITS       48
8097 #define LQUOTA_GRACE_MASK       ((1ULL << LQUOTA_GRACE_BITS) - 1)
8098 #define LQUOTA_GRACE_MAX        LQUOTA_GRACE_MASK
8099 #define LQUOTA_GRACE(t)         (t & LQUOTA_GRACE_MASK)
8100 #define LQUOTA_FLAG(t)          (t >> LQUOTA_GRACE_BITS)
8101 #define LQUOTA_GRACE_FLAG(t, f) ((__u64)t | (__u64)f << LQUOTA_GRACE_BITS)
8102 #endif
8103
8104 #define STRBUF_LEN      24
8105 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
8106                         int rc, bool h, bool show_default)
8107 {
8108         time_t now;
8109
8110         time(&now);
8111
8112         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
8113             qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
8114             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT ||
8115             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT_POOL) {
8116                 int bover = 0, iover = 0;
8117                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
8118                 char numbuf[3][STRBUF_LEN + 2]; /* 2 for brackets or wildcard */
8119                 char timebuf[40];
8120                 char strbuf[STRBUF_LEN];
8121
8122                 if (dqb->dqb_bhardlimit &&
8123                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
8124                         bover = 1;
8125                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
8126                         if (dqb->dqb_btime > now)
8127                                 bover = 2;
8128                         else
8129                                 bover = 3;
8130                 }
8131
8132                 if (dqb->dqb_ihardlimit &&
8133                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
8134                         iover = 1;
8135                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
8136                         if (dqb->dqb_itime > now)
8137                                 iover = 2;
8138                         else
8139                                 iover = 3;
8140                 }
8141
8142                 if (strlen(mnt) > 15)
8143                         printf("%s\n%15s", mnt, "");
8144                 else
8145                         printf("%15s", mnt);
8146
8147                 if (bover)
8148                         diff2str(dqb->dqb_btime, timebuf, now);
8149                 else if (show_default)
8150                         snprintf(timebuf, sizeof(timebuf), "%llu",
8151                                  (unsigned long long)dqb->dqb_btime);
8152
8153                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
8154                            strbuf, sizeof(strbuf), h);
8155                 if (rc == -EREMOTEIO)
8156                         sprintf(numbuf[0], "%s*", strbuf);
8157                 else
8158                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
8159                                 "%s" : "[%s]", strbuf);
8160
8161                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
8162                 if (type == QC_GENERAL)
8163                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
8164                                 "%s" : "[%s]", strbuf);
8165                 else
8166                         sprintf(numbuf[1], "%s", "-");
8167
8168                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
8169                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
8170                         "%s" : "[%s]", strbuf);
8171
8172                 if (show_default)
8173                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
8174                 else
8175                         printf(" %7s%c %6s %7s %7s",
8176                                numbuf[0], bover ? '*' : ' ', numbuf[1],
8177                                numbuf[2], bover > 1 ? timebuf : "-");
8178
8179                 if (iover)
8180                         diff2str(dqb->dqb_itime, timebuf, now);
8181                 else if (show_default)
8182                         snprintf(timebuf, sizeof(timebuf), "%llu",
8183                                  (unsigned long long)dqb->dqb_itime);
8184
8185                 snprintf(numbuf[0], sizeof(numbuf),
8186                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
8187                          (uintmax_t)dqb->dqb_curinodes);
8188
8189                 if (type == QC_GENERAL)
8190                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
8191                                 "%ju" : "[%ju]",
8192                                 (uintmax_t)dqb->dqb_isoftlimit);
8193                 else
8194                         sprintf(numbuf[1], "%s", "-");
8195
8196                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
8197                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
8198
8199                 if (show_default)
8200                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
8201                 else if (type != QC_OSTIDX)
8202                         printf(" %7s%c %6s %7s %7s",
8203                                numbuf[0], iover ? '*' : ' ', numbuf[1],
8204                                numbuf[2], iover > 1 ? timebuf : "-");
8205                 else
8206                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
8207                 printf("\n");
8208         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO || LUSTRE_Q_GETINFOPOOL ||
8209                    qctl->qc_cmd == Q_GETOINFO) {
8210                 char bgtimebuf[40];
8211                 char igtimebuf[40];
8212
8213                 if (qctl->qc_dqinfo.dqi_bgrace == NOTIFY_GRACE_TIME)
8214                         strncpy(bgtimebuf, NOTIFY_GRACE, 40);
8215                 else
8216                         sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
8217                 if (qctl->qc_dqinfo.dqi_igrace == NOTIFY_GRACE_TIME)
8218                         strncpy(igtimebuf, NOTIFY_GRACE, 40);
8219                 else
8220                         sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
8221
8222                 printf("Block grace time: %s; Inode grace time: %s\n",
8223                        bgtimebuf, igtimebuf);
8224         }
8225 }
8226
8227 static int tgt_name2index(const char *tgtname, unsigned int *idx)
8228 {
8229         char *dash, *endp;
8230
8231         /* format is "lustre-OST0001" */
8232         dash = memchr(tgtname, '-', LUSTRE_MAXFSNAME + 1);
8233         if (!dash) {
8234                 fprintf(stderr, "wrong tgtname format '%s'\n", tgtname);
8235                 return -EINVAL;
8236         }
8237         dash += 4;
8238
8239         *idx = strtoul(dash, &endp, 16);
8240         if (*idx > 0xffff) {
8241                 fprintf(stderr, "wrong index %s\n", tgtname);
8242                 return -ERANGE;
8243         }
8244
8245         return 0;
8246 }
8247
8248 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
8249                            bool h, __u64 *total)
8250 {
8251         int rc = 0, rc1 = 0, count = 0, i = 0;
8252         char **list = NULL, *buffer = NULL;
8253         __u32 valid = qctl->qc_valid;
8254
8255         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL && is_mdt)
8256                 return 0;
8257
8258         /* Is it correct for the case OST0000, OST0002, OST0003 -
8259          * we will ask OST0001 that is absent and won't ask OST0003? */
8260         rc = llapi_get_obd_count(mnt, &count, is_mdt);
8261         if (rc) {
8262                 fprintf(stderr, "can not get %s count: %s\n",
8263                         is_mdt ? "mdt" : "ost", strerror(-rc));
8264                 return rc;
8265         }
8266
8267         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8268                 char fname[PATH_MAX];
8269                 char fsname[LUSTRE_MAXFSNAME + 1];
8270                 int bufsize = sizeof(struct obd_uuid) * count;
8271
8272                 rc = llapi_search_fsname(mnt, fsname);
8273                 if (rc) {
8274                         fprintf(stderr, "cannot get fsname for mountpoint %s\n",
8275                                 mnt);
8276                         goto out;
8277                 }
8278                 buffer = malloc(bufsize + sizeof(*list) * count);
8279                 if (!buffer)
8280                         return -ENOMEM;
8281                 list = (char **)(buffer + bufsize);
8282                 snprintf(fname, PATH_MAX, "%s.%s", fsname, qctl->qc_poolname);
8283                 count = llapi_get_poolmembers(fname, list, count,
8284                                               buffer, bufsize);
8285                 if (count <= 0)
8286                         goto out;
8287         }
8288
8289         for (i = 0; i < count; i++) {
8290                 if (qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8291                         unsigned int index;
8292
8293                         if (tgt_name2index(list[i], &index))
8294                                 continue;
8295                         qctl->qc_idx = index;
8296                 } else {
8297                         qctl->qc_idx = i;
8298                 }
8299
8300                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
8301                 rc = llapi_quotactl(mnt, qctl);
8302                 if (rc) {
8303                         /* It is remote client case. */
8304                         if (rc == -EOPNOTSUPP) {
8305                                 rc = 0;
8306                                 goto out;
8307                         }
8308
8309                         if (!rc1)
8310                                 rc1 = rc;
8311                         fprintf(stderr, "quotactl %s%d failed.\n",
8312                                 is_mdt ? "mdt" : "ost", qctl->qc_idx);
8313                         continue;
8314                 }
8315
8316                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
8317                             qctl->qc_valid, 0, h, false);
8318                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
8319                                    qctl->qc_dqblk.dqb_bhardlimit;
8320         }
8321 out:
8322         if (buffer)
8323                 free(buffer);
8324         qctl->qc_valid = valid;
8325         return rc ? : rc1;
8326 }
8327
8328 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
8329                            int verbose, int quiet, bool human_readable,
8330                            bool show_default)
8331 {
8332         int rc1 = 0, rc2 = 0, rc3 = 0;
8333         char *obd_type = (char *)qctl->obd_type;
8334         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
8335         __u64 total_ialloc = 0, total_balloc = 0;
8336         bool use_default_for_blk = false;
8337         bool use_default_for_file = false;
8338         int inacc;
8339
8340         rc1 = llapi_quotactl(mnt, qctl);
8341         if (rc1 < 0) {
8342                 switch (rc1) {
8343                 case -ESRCH:
8344                         fprintf(stderr, "%s quotas are not enabled.\n",
8345                                 qtype_name(qctl->qc_type));
8346                         goto out;
8347                 case -EPERM:
8348                         fprintf(stderr, "Permission denied.\n");
8349                 case -ENODEV:
8350                 case -ENOENT:
8351                         /* We already got error message. */
8352                         goto out;
8353                 default:
8354                         fprintf(stderr, "Unexpected quotactl error: %s\n",
8355                                 strerror(-rc1));
8356                 }
8357         }
8358
8359         if (!show_default && qctl->qc_id == 0) {
8360                 qctl->qc_dqblk.dqb_bhardlimit = 0;
8361                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
8362                 qctl->qc_dqblk.dqb_ihardlimit = 0;
8363                 qctl->qc_dqblk.dqb_isoftlimit = 0;
8364                 qctl->qc_dqblk.dqb_btime = 0;
8365                 qctl->qc_dqblk.dqb_itime = 0;
8366                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
8367         }
8368
8369         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
8370             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
8371                 use_default_for_blk = true;
8372                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
8373         }
8374
8375         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
8376             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
8377                 use_default_for_file = true;
8378                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
8379         }
8380
8381         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8382              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ||
8383              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT_POOL ||
8384              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
8385                 print_quota_title(name, qctl, human_readable, show_default);
8386
8387         if (rc1 && *obd_type)
8388                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
8389
8390         if (qctl->qc_valid != QC_GENERAL)
8391                 mnt = "";
8392
8393         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8394                  qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8395                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
8396                  (QIF_LIMITS|QIF_USAGE));
8397
8398         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
8399
8400         if (!show_default && verbose &&
8401             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO &&
8402             qctl->qc_cmd != LUSTRE_Q_GETINFOPOOL) {
8403                 char strbuf[STRBUF_LEN];
8404
8405                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
8406                                       &total_ialloc);
8407                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
8408                                       &total_balloc);
8409                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
8410                            human_readable);
8411                 printf("Total allocated inode limit: %ju, total allocated block limit: %s\n",
8412                        (uintmax_t)total_ialloc, strbuf);
8413         }
8414
8415         if (use_default_for_blk)
8416                 printf("%cid %u is using default block quota setting\n",
8417                        *qtype_name(qctl->qc_type), qctl->qc_id);
8418
8419         if (use_default_for_file)
8420                 printf("%cid %u is using default file quota setting\n",
8421                        *qtype_name(qctl->qc_type), qctl->qc_id);
8422
8423         if (rc1 || rc2 || rc3 || inacc)
8424                 printf("Some errors happened when getting quota info. Some devices may be not working or deactivated. The data in \"[]\" is inaccurate.\n");
8425 out:
8426         if (rc1)
8427                 return rc1;
8428         if (rc2)
8429                 return rc2;
8430         if (rc3)
8431                 return rc3;
8432         if (inacc)
8433                 return -EIO;
8434
8435         return 0;
8436 }
8437
8438 static int lfs_project(int argc, char **argv)
8439 {
8440         int ret = 0, err = 0, c, i;
8441         struct project_handle_control phc = { 0 };
8442         enum lfs_project_ops_t op;
8443
8444         phc.newline = true;
8445         phc.assign_projid = false;
8446         /* default action */
8447         op = LFS_PROJECT_LIST;
8448
8449         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
8450                 switch (c) {
8451                 case 'c':
8452                         if (op != LFS_PROJECT_LIST) {
8453                                 fprintf(stderr,
8454                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8455                                         progname);
8456                                 return CMD_HELP;
8457                         }
8458
8459                         op = LFS_PROJECT_CHECK;
8460                         break;
8461                 case 'C':
8462                         if (op != LFS_PROJECT_LIST) {
8463                                 fprintf(stderr,
8464                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8465                                         progname);
8466                                 return CMD_HELP;
8467                         }
8468
8469                         op = LFS_PROJECT_CLEAR;
8470                         break;
8471                 case 's':
8472                         if (op != LFS_PROJECT_LIST) {
8473                                 fprintf(stderr,
8474                                         "%s: cannot specify '-c' '-C' '-s' together\n",
8475                                         progname);
8476                                 return CMD_HELP;
8477                         }
8478
8479                         phc.set_inherit = true;
8480                         op = LFS_PROJECT_SET;
8481                         break;
8482                 case 'd':
8483                         phc.dironly = true;
8484                         break;
8485                 case 'k':
8486                         phc.keep_projid = true;
8487                         break;
8488                 case 'r':
8489                         phc.recursive = true;
8490                         break;
8491                 case 'p':
8492                         if (str2quotaid(&phc.projid, optarg)) {
8493                                 fprintf(stderr,
8494                                         "Invalid project ID: %s\n",
8495                                         optarg);
8496                                 return CMD_HELP;
8497                         }
8498
8499                         phc.assign_projid = true;
8500
8501                         break;
8502                 case '0':
8503                         phc.newline = false;
8504                         break;
8505                 default:
8506                         fprintf(stderr, "%s: invalid option '%c'\n",
8507                                 progname, optopt);
8508                         return CMD_HELP;
8509                 }
8510         }
8511
8512         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
8513                 op = LFS_PROJECT_SET;
8514                 phc.set_projid = true;
8515         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
8516                 phc.set_projid = true;
8517         }
8518
8519         switch (op) {
8520         case LFS_PROJECT_CHECK:
8521                 if (phc.keep_projid) {
8522                         fprintf(stderr,
8523                                 "%s: '-k' is useless together with '-c'\n",
8524                                 progname);
8525                         return CMD_HELP;
8526                 }
8527                 break;
8528         case LFS_PROJECT_CLEAR:
8529                 if (!phc.newline) {
8530                         fprintf(stderr,
8531                                 "%s: '-0' is useless together with '-C'\n",
8532                                 progname);
8533                         return CMD_HELP;
8534                 }
8535                 if (phc.assign_projid) {
8536                         fprintf(stderr,
8537                                 "%s: '-p' is useless together with '-C'\n",
8538                                 progname);
8539                         return CMD_HELP;
8540                 }
8541                 break;
8542         case LFS_PROJECT_SET:
8543                 if (!phc.newline) {
8544                         fprintf(stderr,
8545                                 "%s: '-0' is useless together with '-s'\n",
8546                                 progname);
8547                         return CMD_HELP;
8548                 }
8549                 if (phc.keep_projid) {
8550                         fprintf(stderr,
8551                                 "%s: '-k' is useless together with '-s'\n",
8552                                 progname);
8553                         return CMD_HELP;
8554                 }
8555                 break;
8556         default:
8557                 if (!phc.newline) {
8558                         fprintf(stderr,
8559                                 "%s: '-0' is useless for list operations\n",
8560                                 progname);
8561                         return CMD_HELP;
8562                 }
8563                 break;
8564         }
8565
8566         argv += optind;
8567         argc -= optind;
8568         if (argc == 0) {
8569                 fprintf(stderr, "%s: missing file or directory target(s)\n",
8570                         progname);
8571                 return CMD_HELP;
8572         }
8573
8574         for (i = 0; i < argc; i++) {
8575                 switch (op) {
8576                 case LFS_PROJECT_CHECK:
8577                         err = lfs_project_check(argv[i], &phc);
8578                         break;
8579                 case LFS_PROJECT_LIST:
8580                         err = lfs_project_list(argv[i], &phc);
8581                         break;
8582                 case LFS_PROJECT_CLEAR:
8583                         err = lfs_project_clear(argv[i], &phc);
8584                         break;
8585                 case LFS_PROJECT_SET:
8586                         err = lfs_project_set(argv[i], &phc);
8587                         break;
8588                 default:
8589                         break;
8590                 }
8591                 if (err && !ret)
8592                         ret = err;
8593         }
8594
8595         return ret;
8596 }
8597
8598 static int lfs_quota(int argc, char **argv)
8599 {
8600         int c;
8601         char *mnt, *name = NULL;
8602         struct if_quotactl *qctl;
8603         char *obd_uuid;
8604         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
8605         __u32 valid = QC_GENERAL, idx = 0;
8606         bool human_readable = false;
8607         bool show_default = false;
8608         int qtype;
8609         bool show_pools = false;
8610         struct option long_opts[] = {
8611         { .val = LFS_POOL_OPT, .name = "pool", .has_arg = optional_argument },
8612         { .name = NULL } };
8613         char **poollist = NULL;
8614         char *buf = NULL;
8615         int poolcount, i;
8616
8617         qctl = calloc(1, sizeof(*qctl) + LOV_MAXPOOLNAME + 1);
8618         if (!qctl)
8619                 return -ENOMEM;
8620
8621         qctl->qc_cmd = LUSTRE_Q_GETQUOTA;
8622         qctl->qc_type = ALLQUOTA;
8623         obd_uuid = (char *)qctl->obd_uuid.uuid;
8624
8625         while ((c = getopt_long(argc, argv, "gGi:I:o:pPqtuUvh",
8626                 long_opts, NULL)) != -1) {
8627                 switch (c) {
8628                 case 'U':
8629                         show_default = true;
8630                 case 'u':
8631                         qtype = USRQUOTA;
8632                         goto quota_type;
8633                 case 'G':
8634                         show_default = true;
8635                 case 'g':
8636                         qtype = GRPQUOTA;
8637                         goto quota_type;
8638                 case 'P':
8639                         show_default = true;
8640                 case 'p':
8641                         qtype = PRJQUOTA;
8642 quota_type:
8643                         if (qctl->qc_type != ALLQUOTA) {
8644                                 fprintf(stderr,
8645                                         "%s quota: only one of -u, -g, or -p may be specified\n",
8646                                         progname);
8647                                 rc = CMD_HELP;
8648                                 goto out;
8649                         }
8650                         qctl->qc_type = qtype;
8651                         break;
8652                 case 't':
8653                         qctl->qc_cmd = LUSTRE_Q_GETINFO;
8654                         break;
8655                 case 'o':
8656                         valid = qctl->qc_valid = QC_UUID;
8657                         snprintf(obd_uuid, sizeof(*obd_uuid), "%s", optarg);
8658                         break;
8659                 case 'i':
8660                         valid = qctl->qc_valid = QC_MDTIDX;
8661                         idx = qctl->qc_idx = atoi(optarg);
8662                         if (idx == 0 && *optarg != '0') {
8663                                 fprintf(stderr,
8664                                         "%s quota: invalid MDT index '%s'\n",
8665                                         progname, optarg);
8666                                 rc = CMD_HELP;
8667                                 goto out;
8668                         }
8669                         break;
8670                 case 'I':
8671                         valid = qctl->qc_valid = QC_OSTIDX;
8672                         idx = qctl->qc_idx = atoi(optarg);
8673                         if (idx == 0 && *optarg != '0') {
8674                                 fprintf(stderr,
8675                                         "%s quota: invalid OST index '%s'\n",
8676                                         progname, optarg);
8677                                 rc = CMD_HELP;
8678                                 goto out;
8679                         }
8680                         break;
8681                 case 'v':
8682                         verbose = 1;
8683                         break;
8684                 case 'q':
8685                         quiet = 1;
8686                         break;
8687                 case 'h':
8688                         human_readable = true;
8689                         break;
8690                 case LFS_POOL_OPT:
8691                         if ((!optarg) && (argv[optind] != NULL) &&
8692                                 (argv[optind][0] != '-') &&
8693                                 (argv[optind][0] != '/')) {
8694                                 optarg = argv[optind++];
8695                                 if (lfs_verify_poolarg(optarg)) {
8696                                         rc = -EINVAL;
8697                                         goto out;
8698                                 }
8699                                 strncpy(qctl->qc_poolname, optarg,
8700                                         LOV_MAXPOOLNAME);
8701                                 if (qctl->qc_cmd == LUSTRE_Q_GETINFO)
8702                                         qctl->qc_cmd = LUSTRE_Q_GETINFOPOOL;
8703                                 else
8704                                         qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
8705                                 break;
8706                         }
8707
8708                         /* optarg is NULL */
8709                         show_pools = true;
8710                         qctl->qc_cmd = LUSTRE_Q_GETQUOTAPOOL;
8711                         break;
8712                 default:
8713                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
8714                                 progname, argv[optind - 1]);
8715                         rc = CMD_HELP;
8716                         goto out;
8717                 }
8718         }
8719
8720         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
8721         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8722              qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) &&
8723              qctl->qc_type == ALLQUOTA &&
8724              optind == argc - 1 && !show_default) {
8725                 qctl->qc_idx = idx;
8726
8727                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
8728                         qctl->qc_type = qtype;
8729                         qctl->qc_valid = valid;
8730                         if (qtype == USRQUOTA) {
8731                                 qctl->qc_id = geteuid();
8732                                 rc = uid2name(&name, qctl->qc_id);
8733                         } else {
8734                                 qctl->qc_id = getegid();
8735                                 rc = gid2name(&name, qctl->qc_id);
8736                                 memset(&qctl->qc_dqblk, 0,
8737                                        sizeof(qctl->qc_dqblk));
8738                         }
8739                         if (rc)
8740                                 name = "<unknown>";
8741                         mnt = argv[optind];
8742                         rc1 = get_print_quota(mnt, name, qctl, verbose, quiet,
8743                                               human_readable, show_default);
8744                         if (rc1 && !rc)
8745                                 rc = rc1;
8746                 }
8747                 goto out;
8748         /* lfs quota -u username /path/to/lustre/mount */
8749         } else if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
8750                    qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL) {
8751                 /* options should be followed by u/g-name and mntpoint */
8752                 if ((!show_default && optind + 2 != argc) ||
8753                     (show_default && optind + 1 != argc) ||
8754                     qctl->qc_type == ALLQUOTA) {
8755                         fprintf(stderr,
8756                                 "%s quota: name and mount point must be specified\n",
8757                                 progname);
8758                         rc = CMD_HELP;
8759                         goto out;
8760                 }
8761
8762                 if (!show_default) {
8763                         name = argv[optind++];
8764                         switch (qctl->qc_type) {
8765                         case USRQUOTA:
8766                                 rc = name2uid(&qctl->qc_id, name);
8767                                 break;
8768                         case GRPQUOTA:
8769                                 rc = name2gid(&qctl->qc_id, name);
8770                                 break;
8771                         case PRJQUOTA:
8772                                 rc = name2projid(&qctl->qc_id, name);
8773                                 break;
8774                         default:
8775                                 rc = -ENOTSUP;
8776                                 break;
8777                         }
8778                 } else {
8779                         qctl->qc_valid = QC_GENERAL;
8780                         qctl->qc_cmd = qctl->qc_cmd == LUSTRE_Q_GETQUOTAPOOL ?
8781                                         LUSTRE_Q_GETDEFAULT_POOL :
8782                                         LUSTRE_Q_GETDEFAULT;
8783                         qctl->qc_id = 0;
8784                 }
8785
8786                 if (rc) {
8787                         if (str2quotaid(&qctl->qc_id, name)) {
8788                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
8789                                         progname, name);
8790                                 rc = CMD_HELP;
8791                                 goto out;
8792                         }
8793                 }
8794         } else if (optind + 1 != argc || qctl->qc_type == ALLQUOTA) {
8795                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
8796                         progname);
8797                 rc = CMD_HELP;
8798                 goto out;
8799         }
8800
8801         mnt = argv[optind];
8802         if (show_pools) {
8803                 char *p;
8804
8805                 i = 0;
8806                 rc = llapi_get_poolbuf(mnt, &buf, &poollist, &poolcount);
8807                 if (rc)
8808                         goto out;
8809
8810                 for (i = 0; i < poolcount; i++) {
8811                         p = memchr(poollist[i], '.', MAXNAMLEN);
8812                         if (!p) {
8813                                 fprintf(stderr, "bad string format %.*s\n",
8814                                         MAXNAMLEN, poollist[i]);
8815                                 rc = -EINVAL;
8816                                 goto out;
8817                         }
8818                         p++;
8819                         printf("Quotas for pool: %s\n", p);
8820                         strncpy(qctl->qc_poolname, p, LOV_MAXPOOLNAME);
8821                         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8822                                              human_readable, show_default);
8823                         if (rc)
8824                                 break;
8825                 }
8826                 goto out;
8827         }
8828
8829         rc = get_print_quota(mnt, name, qctl, verbose, quiet,
8830                              human_readable, show_default);
8831 out:
8832         free(buf);
8833         free(qctl);
8834         return rc;
8835 }
8836 #endif /* HAVE_SYS_QUOTA_H! */
8837
8838 static int flushctx_ioctl(char *mp)
8839 {
8840         int fd, rc;
8841
8842         fd = open(mp, O_RDONLY);
8843         if (fd == -1) {
8844                 fprintf(stderr, "flushctx: error open %s: %s\n",
8845                         mp, strerror(errno));
8846                 return -1;
8847         }
8848
8849         rc = ioctl(fd, LL_IOC_FLUSHCTX);
8850         if (rc == -1)
8851                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
8852                         mp, strerror(errno));
8853
8854         close(fd);
8855         return rc;
8856 }
8857
8858 static int lfs_flushctx(int argc, char **argv)
8859 {
8860         int     kdestroy = 0, reap = 0, c;
8861         char    mntdir[PATH_MAX] = {'\0'};
8862         int     index = 0;
8863         int     rc = 0;
8864
8865         while ((c = getopt(argc, argv, "kr")) != -1) {
8866                 switch (c) {
8867                 case 'k':
8868                         kdestroy = 1;
8869                         break;
8870                 case 'r':
8871                         reap = 1;
8872                         break;
8873                 default:
8874                         fprintf(stderr,
8875                                 "error: %s: option '-%c' unrecognized\n",
8876                                 argv[0], c);
8877                         return CMD_HELP;
8878                 }
8879         }
8880
8881         if (kdestroy) {
8882                 rc = system("kdestroy > /dev/null");
8883                 if (rc) {
8884                         rc = WEXITSTATUS(rc);
8885                         fprintf(stderr,
8886                                 "error destroying tickets: %d, continuing\n",
8887                                 rc);
8888                 }
8889         }
8890
8891         if (optind >= argc) {
8892                 /* flush for all mounted lustre fs. */
8893                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
8894                         /* Check if we have a mount point */
8895                         if (mntdir[0] == '\0')
8896                                 continue;
8897
8898                         if (flushctx_ioctl(mntdir))
8899                                 rc = -1;
8900
8901                         mntdir[0] = '\0'; /* avoid matching in next loop */
8902                 }
8903         } else {
8904                 /* flush fs as specified */
8905                 while (optind < argc) {
8906                         if (flushctx_ioctl(argv[optind++]))
8907                                 rc = -1;
8908                 }
8909         }
8910
8911         if (reap) {
8912                 rc = system("keyctl reap > /dev/null");
8913                 if (rc != 0) {
8914                         rc = WEXITSTATUS(rc);
8915                         fprintf(stderr, "error reaping keyring: %d\n", rc);
8916                 }
8917         }
8918
8919         return rc;
8920 }
8921
8922 static int lfs_changelog(int argc, char **argv)
8923 {
8924         void *changelog_priv;
8925         struct changelog_rec *rec;
8926         long long startrec = 0, endrec = 0;
8927         char *mdd;
8928         struct option long_opts[] = {
8929                 { .val = 'f', .name = "follow", .has_arg = no_argument },
8930                 { .name = NULL } };
8931         char short_opts[] = "f";
8932         int rc, follow = 0;
8933
8934         while ((rc = getopt_long(argc, argv, short_opts,
8935                 long_opts, NULL)) != -1) {
8936                 switch (rc) {
8937                 case 'f':
8938                         follow++;
8939                         break;
8940                 default:
8941                         fprintf(stderr,
8942                                 "%s changelog: unrecognized option '%s'\n",
8943                                 progname, argv[optind - 1]);
8944                         return CMD_HELP;
8945                 }
8946         }
8947         if (optind >= argc) {
8948                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
8949                         progname);
8950                 return CMD_HELP;
8951         }
8952
8953         mdd = argv[optind++];
8954         if (argc > optind) {
8955                 errno = 0;
8956                 startrec = strtoll(argv[optind++], NULL, 10);
8957                 if (errno != 0 || startrec < 0) {
8958                         fprintf(stderr,
8959                                 "%s changelog: bad startrec\n",
8960                                 progname);
8961                         return CMD_HELP;
8962                 }
8963         }
8964
8965         if (argc > optind) {
8966                 errno = 0;
8967                 endrec = strtoll(argv[optind++], NULL, 10);
8968                 if (errno != 0 || endrec < 0) {
8969                         fprintf(stderr,
8970                                 "%s changelog: bad endrec\n",
8971                                 progname);
8972                         return CMD_HELP;
8973                 }
8974         }
8975
8976         rc = llapi_changelog_start(&changelog_priv,
8977                                    CHANGELOG_FLAG_BLOCK |
8978                                    CHANGELOG_FLAG_JOBID |
8979                                    CHANGELOG_FLAG_EXTRA_FLAGS |
8980                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
8981                                    mdd, startrec);
8982         if (rc < 0) {
8983                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
8984                         progname, strerror(errno = -rc));
8985                 return rc;
8986         }
8987
8988         rc = llapi_changelog_set_xflags(changelog_priv,
8989                                         CHANGELOG_EXTRA_FLAG_UIDGID |
8990                                         CHANGELOG_EXTRA_FLAG_NID |
8991                                         CHANGELOG_EXTRA_FLAG_OMODE |
8992                                         CHANGELOG_EXTRA_FLAG_XATTR);
8993         if (rc < 0) {
8994                 fprintf(stderr,
8995                         "%s changelog: cannot set xflags for changelog: %s\n",
8996                         progname, strerror(errno = -rc));
8997                 return rc;
8998         }
8999
9000         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
9001                 time_t secs;
9002                 struct tm ts;
9003
9004                 if (endrec && rec->cr_index > endrec) {
9005                         llapi_changelog_free(&rec);
9006                         break;
9007                 }
9008                 if (rec->cr_index < startrec) {
9009                         llapi_changelog_free(&rec);
9010                         continue;
9011                 }
9012
9013                 secs = rec->cr_time >> 30;
9014                 gmtime_r(&secs, &ts);
9015                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
9016                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
9017                        changelog_type2str(rec->cr_type),
9018                        ts.tm_hour, ts.tm_min, ts.tm_sec,
9019                        (int)(rec->cr_time & ((1 << 30) - 1)),
9020                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
9021                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
9022
9023                 if (rec->cr_flags & CLF_JOBID) {
9024                         struct changelog_ext_jobid *jid =
9025                                 changelog_rec_jobid(rec);
9026
9027                         if (jid->cr_jobid[0] != '\0')
9028                                 printf(" j=%s", jid->cr_jobid);
9029                 }
9030
9031                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
9032                         struct changelog_ext_extra_flags *ef =
9033                                 changelog_rec_extra_flags(rec);
9034
9035                         printf(" ef=0x%llx",
9036                                (unsigned long long)ef->cr_extra_flags);
9037
9038                         if (ef->cr_extra_flags & CLFE_UIDGID) {
9039                                 struct changelog_ext_uidgid *uidgid =
9040                                         changelog_rec_uidgid(rec);
9041
9042                                 printf(" u=%llu:%llu",
9043                                        (unsigned long long)uidgid->cr_uid,
9044                                        (unsigned long long)uidgid->cr_gid);
9045                         }
9046                         if (ef->cr_extra_flags & CLFE_NID) {
9047                                 struct changelog_ext_nid *nid =
9048                                         changelog_rec_nid(rec);
9049
9050                                 printf(" nid=%s",
9051                                        libcfs_nid2str(nid->cr_nid));
9052                         }
9053
9054                         if (ef->cr_extra_flags & CLFE_OPEN) {
9055                                 struct changelog_ext_openmode *omd =
9056                                         changelog_rec_openmode(rec);
9057                                 char mode[] = "---";
9058
9059                                 /* exec mode must be exclusive */
9060                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
9061                                         mode[2] = 'x';
9062                                 } else {
9063                                         if (omd->cr_openflags & MDS_FMODE_READ)
9064                                                 mode[0] = 'r';
9065                                         if (omd->cr_openflags &
9066                                             (MDS_FMODE_WRITE |
9067                                              MDS_OPEN_TRUNC |
9068                                              MDS_OPEN_APPEND))
9069                                                 mode[1] = 'w';
9070                                 }
9071
9072                                 if (strcmp(mode, "---") != 0)
9073                                         printf(" m=%s", mode);
9074                         }
9075
9076                         if (ef->cr_extra_flags & CLFE_XATTR) {
9077                                 struct changelog_ext_xattr *xattr =
9078                                         changelog_rec_xattr(rec);
9079
9080                                 if (xattr->cr_xattr[0] != '\0')
9081                                         printf(" x=%s", xattr->cr_xattr);
9082                         }
9083                 }
9084
9085                 if (!fid_is_zero(&rec->cr_pfid))
9086                         printf(" p="DFID, PFID(&rec->cr_pfid));
9087                 if (rec->cr_namelen)
9088                         printf(" %.*s", rec->cr_namelen,
9089                                changelog_rec_name(rec));
9090
9091                 if (rec->cr_flags & CLF_RENAME) {
9092                         struct changelog_ext_rename *rnm =
9093                                 changelog_rec_rename(rec);
9094
9095                         if (!fid_is_zero(&rnm->cr_sfid))
9096                                 printf(" s="DFID" sp="DFID" %.*s",
9097                                        PFID(&rnm->cr_sfid),
9098                                        PFID(&rnm->cr_spfid),
9099                                        (int)changelog_rec_snamelen(rec),
9100                                        changelog_rec_sname(rec));
9101                 }
9102                 printf("\n");
9103
9104                 llapi_changelog_free(&rec);
9105         }
9106
9107         llapi_changelog_fini(&changelog_priv);
9108
9109         if (rc < 0)
9110                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
9111                         progname, strerror(errno = -rc));
9112
9113         return (rc == 1 ? 0 : rc);
9114 }
9115
9116 static int lfs_changelog_clear(int argc, char **argv)
9117 {
9118         long long endrec;
9119         int rc;
9120
9121         if (argc != 4)
9122                 return CMD_HELP;
9123
9124         errno = 0;
9125         endrec = strtoll(argv[3], NULL, 10);
9126         if (errno != 0 || endrec < 0) {
9127                 fprintf(stderr,
9128                         "%s: bad endrec '%s'\n",
9129                         argv[0], argv[3]);
9130                 return CMD_HELP;
9131         }
9132
9133         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
9134
9135         if (rc == -EINVAL)
9136                 fprintf(stderr, "%s: record out of range: %llu\n",
9137                         argv[0], endrec);
9138         else if (rc == -ENOENT)
9139                 fprintf(stderr, "%s: no changelog user: %s\n",
9140                         argv[0], argv[2]);
9141         else if (rc)
9142                 fprintf(stderr, "%s error: %s\n", argv[0],
9143                         strerror(-rc));
9144
9145         if (rc)
9146                 errno = -rc;
9147
9148         return rc;
9149 }
9150
9151 static void rstripc(char *str, int c)
9152 {
9153         char *end = str + strlen(str);
9154
9155         for (; str < end && end[-1] == c; --end)
9156                 end[-1] = '\0';
9157 }
9158
9159 static int lfs_fid2path(int argc, char **argv)
9160 {
9161         struct option long_opts[] = {
9162                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
9163                 { .val = 'c',   .name = "current",      .has_arg = no_argument },
9164                 { .val = 'c',   .name = "print-link",   .has_arg = no_argument },
9165                 { .val = 'f',   .name = "print-fid",    .has_arg = no_argument },
9166                 { .val = 'l',   .name = "link", .has_arg = required_argument },
9167                 { .name = NULL } };
9168         char short_opts[] = "cfl:pr:";
9169         bool print_link = false;
9170         bool print_fid = false;
9171         bool print_mnt_dir;
9172         char mnt_dir[PATH_MAX] = "";
9173         int mnt_fd = -1;
9174         char *path_or_fsname;
9175         long long recno = -1;
9176         int linkno = -1;
9177         char *endptr = NULL;
9178         int rc = 0;
9179         int c;
9180         int i;
9181
9182         while ((c = getopt_long(argc, argv, short_opts, long_opts, NULL)) != -1) {
9183                 switch (c) {
9184                 case 'c':
9185                         print_link = true;
9186                         break;
9187                 case 'f':
9188                         print_fid = true;
9189                         break;
9190                 case 'l':
9191                         errno = 0;
9192                         linkno = strtol(optarg, &endptr, 10);
9193                         if (errno != 0 || *endptr != '\0' || linkno < 0) {
9194                                 fprintf(stderr,
9195                                         "%s fid2path: invalid linkno '%s'\n",
9196                                         progname, optarg);
9197                                 return CMD_HELP;
9198                         }
9199                         break;
9200                 case 'r':
9201                         /* recno is something to do with changelogs
9202                          * that was never implemented. We just pass it
9203                          * through for the MDT to ignore.
9204                          */
9205                         errno = 0;
9206                         recno = strtoll(optarg, &endptr, 10);
9207                         if (errno != 0 || *endptr != '\0' || recno < 0) {
9208                                 fprintf(stderr,
9209                                         "%s fid2path: invalid recno '%s'\n",
9210                                         progname, optarg);
9211                                 return CMD_HELP;
9212                         }
9213                         break;
9214                 default:
9215                         fprintf(stderr,
9216                                 "%s fid2path: unrecognized option '%s'\n",
9217                                 progname, argv[optind - 1]);
9218                         return CMD_HELP;
9219                 }
9220         }
9221
9222         if (argc - optind < 2) {
9223                 fprintf(stderr,
9224                         "Usage: %s fid2path FSNAME|ROOT FID...\n",
9225                         progname);
9226                 return CMD_HELP;
9227         }
9228
9229         path_or_fsname = argv[optind];
9230
9231         if (*path_or_fsname == '/') {
9232                 print_mnt_dir = true;
9233                 rc = llapi_search_mounts(path_or_fsname, 0, mnt_dir, NULL);
9234         } else {
9235                 print_mnt_dir = false;
9236                 rc = llapi_search_rootpath(mnt_dir, path_or_fsname);
9237         }
9238
9239         if (rc < 0) {
9240                 fprintf(stderr,
9241                         "%s fid2path: cannot resolve mount point for '%s': %s\n",
9242                         progname, path_or_fsname, strerror(-rc));
9243                 goto out;
9244         }
9245
9246         mnt_fd = open(mnt_dir, O_RDONLY | O_DIRECTORY);
9247         if (mnt_fd < 0) {
9248                 fprintf(stderr,
9249                         "%s fid2path: cannot open mount point for '%s': %s\n",
9250                         progname, path_or_fsname, strerror(-rc));
9251                 goto out;
9252         }
9253
9254         /* Strip trailing slashes from mnt_dir. */
9255         rstripc(mnt_dir + 1, '/');
9256
9257         for (i = optind + 1; i < argc; i++) {
9258                 const char *fid_str = argv[i];
9259                 struct lu_fid fid;
9260                 int rc2;
9261
9262                 rc2 = llapi_fid_parse(fid_str, &fid, NULL);
9263                 if (rc2 < 0) {
9264                         fprintf(stderr,
9265                                 "%s fid2path: invalid FID '%s'\n",
9266                                 progname, fid_str);
9267                         if (rc == 0)
9268                                 rc = rc2;
9269
9270                         continue;
9271                 }
9272
9273                 int linktmp = (linkno >= 0) ? linkno : 0;
9274                 while (1) {
9275                         int oldtmp = linktmp;
9276                         long long rectmp = recno;
9277                         char path_buf[PATH_MAX];
9278
9279                         rc2 = llapi_fid2path_at(mnt_fd, &fid,
9280                                 path_buf, sizeof(path_buf), &rectmp, &linktmp);
9281                         if (rc2 < 0) {
9282                                 fprintf(stderr,
9283                                         "%s fid2path: cannot find %s %s: %s\n",
9284                                         progname, path_or_fsname, fid_str,
9285                                         strerror(-rc2));
9286                                 if (rc == 0)
9287                                         rc = rc2;
9288                                 break;
9289                         }
9290
9291                         if (print_fid)
9292                                 printf("%s ", fid_str);
9293
9294                         if (print_link)
9295                                 printf("%d ", linktmp);
9296
9297                         /* You may think this looks wrong or weird (and it is!)
9298                          * but we are actually trying to preserve the old quirky
9299                          * behaviors (enforced by our old quirky tests!) that
9300                          * make lfs so much fun to work on:
9301                          *
9302                          *   lustre 0x200000007:0x1:0x0 => "/"
9303                          *   /mnt/lustre 0x200000007:0x1:0x0 => "/mnt/lustre//"
9304                          *
9305                          * Note that llapi_fid2path() returns "" for the root
9306                          * FID. */
9307
9308                         printf("%s%s%s\n",
9309                                print_mnt_dir ? mnt_dir : "",
9310                                (print_mnt_dir || *path_buf == '\0') ? "/" : "",
9311                                path_buf);
9312
9313                         if (linkno >= 0)
9314                                 /* specified linkno */
9315                                 break;
9316
9317                         if (oldtmp == linktmp)
9318                                 /* no more links */
9319                                 break;
9320                 }
9321         }
9322 out:
9323         if (!(mnt_fd < 0))
9324                 close(mnt_fd);
9325
9326         return rc;
9327 }
9328
9329 static int lfs_path2fid(int argc, char **argv)
9330 {
9331         struct option long_opts[] = {
9332                 { .val = 'p', .name = "parents", .has_arg = no_argument },
9333                 { .name = NULL } };
9334         char            **path;
9335         const char        short_opts[] = "p";
9336         const char       *sep = "";
9337         struct lu_fid     fid;
9338         int               rc = 0;
9339         bool              show_parents = false;
9340
9341         while ((rc = getopt_long(argc, argv, short_opts,
9342                                  long_opts, NULL)) != -1) {
9343                 switch (rc) {
9344                 case 'p':
9345                         show_parents = true;
9346                         break;
9347                 default:
9348                         fprintf(stderr,
9349                                 "%s path2fid: unrecognized option '%s'\n",
9350                                 progname, argv[optind - 1]);
9351                         return CMD_HELP;
9352                 }
9353         }
9354
9355         if (optind > argc - 1) {
9356                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
9357                         progname);
9358                 return CMD_HELP;
9359         } else if (optind < argc - 1) {
9360                 sep = ": ";
9361         }
9362
9363         rc = 0;
9364         for (path = argv + optind; *path != NULL; path++) {
9365                 int err = 0;
9366
9367                 if (!show_parents) {
9368                         err = llapi_path2fid(*path, &fid);
9369                         if (!err)
9370                                 printf("%s%s"DFID"\n",
9371                                        *sep != '\0' ? *path : "", sep,
9372                                        PFID(&fid));
9373                 } else {
9374                         char            name[NAME_MAX + 1];
9375                         unsigned int    linkno = 0;
9376
9377                         while ((err = llapi_path2parent(*path, linkno, &fid,
9378                                                 name, sizeof(name))) == 0) {
9379                                 if (*sep != '\0' && linkno == 0)
9380                                         printf("%s%s", *path, sep);
9381
9382                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
9383                                        PFID(&fid), name);
9384                                 linkno++;
9385                         }
9386
9387                         /* err == -ENODATA is end-of-loop */
9388                         if (linkno > 0 && err == -ENODATA) {
9389                                 printf("\n");
9390                                 err = 0;
9391                         }
9392                 }
9393
9394                 if (err) {
9395                         fprintf(stderr,
9396                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
9397                                 progname, show_parents ? "parent " : "", *path,
9398                                 strerror(-err));
9399                         if (rc == 0) {
9400                                 rc = err;
9401                                 errno = -err;
9402                         }
9403                 }
9404         }
9405
9406         return rc;
9407 }
9408
9409 #define MAX_ERRNO       4095
9410 #define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
9411
9412 static int lfs_rmfid_and_show_errors(const char *device, struct fid_array *fa)
9413 {
9414         int rc, rc2, k;
9415
9416         rc = llapi_rmfid(device, fa);
9417         if (rc < 0) {
9418                 fprintf(stderr, "%s rmfid: cannot remove FIDs: %s\n",
9419                         progname, strerror(-rc));
9420                 return rc;
9421         }
9422
9423         for (k = 0; k < fa->fa_nr; k++) {
9424                 rc2 = (__s32)fa->fa_fids[k].f_ver;
9425                 if (!IS_ERR_VALUE(rc2))
9426                         continue;
9427
9428                 if (rc == 0)
9429                         rc = rc2;
9430
9431                 fa->fa_fids[k].f_ver = 0;
9432                 fprintf(stderr, "%s rmfid: cannot remove "DFID": %s\n",
9433                         progname, PFID(&fa->fa_fids[k]), strerror(-rc2));
9434         }
9435
9436         return rc;
9437 }
9438
9439 static int lfs_rmfid(int argc, char **argv)
9440 {
9441         char *fidstr, *device;
9442         int rc = 0, rc2, nr;
9443         struct fid_array *fa;
9444
9445         if (optind > argc - 1) {
9446                 fprintf(stderr, "%s rmfid: missing dirname\n", progname);
9447                 return CMD_HELP;
9448         }
9449
9450         device = argv[optind++];
9451
9452         nr = argc - optind;
9453         fa = malloc(offsetof(struct fid_array, fa_fids[nr + 1]));
9454         if (!fa)
9455                 return -ENOMEM;
9456
9457         fa->fa_nr = 0;
9458         rc = 0;
9459         while (optind < argc) {
9460                 int found;
9461
9462                 fidstr = argv[optind++];
9463                 while (*fidstr == '[')
9464                         fidstr++;
9465                 found = sscanf(fidstr, SFID, RFID(&fa->fa_fids[fa->fa_nr]));
9466                 if (found != 3) {
9467                         fprintf(stderr, "unrecognized FID: %s\n",
9468                                 argv[optind - 1]);
9469                         exit(1);
9470                 }
9471                 fa->fa_nr++;
9472                 if (fa->fa_nr == OBD_MAX_FIDS_IN_ARRAY) {
9473                         /* start another batch */
9474                         rc2 = lfs_rmfid_and_show_errors(device, fa);
9475                         if (rc2 && !rc)
9476                                 rc = rc2;
9477                         fa->fa_nr = 0;
9478                 }
9479         }
9480         if (fa->fa_nr) {
9481                 rc2 = lfs_rmfid_and_show_errors(device, fa);
9482                 if (rc2 && !rc)
9483                         rc = rc2;
9484         }
9485
9486         return rc;
9487 }
9488
9489 static int lfs_data_version(int argc, char **argv)
9490 {
9491         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
9492         __u64 data_version;
9493         char *path;
9494         int fd;
9495         int rc;
9496         int c;
9497
9498         if (argc < 2) {
9499                 fprintf(stderr, "%s: FILE must be specified\n",
9500                         progname);
9501                 return CMD_HELP;
9502         }
9503
9504         while ((c = getopt(argc, argv, "hnrw")) != -1) {
9505                 switch (c) {
9506                 case 'n':
9507                         data_version_flags = 0;
9508                         break;
9509                 case 'r':
9510                         data_version_flags |= LL_DV_RD_FLUSH;
9511                         break;
9512                 case 'w':
9513                         data_version_flags |= LL_DV_WR_FLUSH;
9514                         break;
9515                 default:
9516                         fprintf(stderr,
9517                                 "%s data_version: unrecognized option '%s'\n",
9518                                 progname, argv[optind - 1]);
9519                         fallthrough;
9520                 case 'h':
9521                         return CMD_HELP;
9522                 }
9523         }
9524         if (optind == argc) {
9525                 fprintf(stderr, "%s data_version: FILE must be specified\n",
9526                         progname);
9527                 return CMD_HELP;
9528         }
9529
9530         path = argv[optind];
9531         fd = open(path, O_RDONLY);
9532         if (fd < 0) {
9533                 rc = -errno;
9534                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
9535                         progname, path, strerror(-rc));
9536                 return rc;
9537         }
9538
9539         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
9540         if (rc < 0)
9541                 fprintf(stderr,
9542                         "%s data_version: cannot get version for '%s': %s\n",
9543                         progname, path, strerror(-rc));
9544         else
9545                 printf("%ju" "\n", (uintmax_t)data_version);
9546
9547         close(fd);
9548         return rc;
9549 }
9550
9551 static int lfs_hsm_state(int argc, char **argv)
9552 {
9553         int rc;
9554         int i = 1;
9555         char *path;
9556         struct hsm_user_state hus;
9557
9558         if (argc < 2)
9559                 return CMD_HELP;
9560
9561         do {
9562                 path = argv[i];
9563
9564                 rc = llapi_hsm_state_get(path, &hus);
9565                 if (rc) {
9566                         fprintf(stderr, "can't get hsm state for %s: %s\n",
9567                                 path, strerror(errno = -rc));
9568                         return rc;
9569                 }
9570
9571                 /* Display path name and status flags */
9572                 printf("%s: (0x%08x)", path, hus.hus_states);
9573
9574                 if (hus.hus_states & HS_RELEASED)
9575                         printf(" released");
9576                 if (hus.hus_states & HS_EXISTS)
9577                         printf(" exists");
9578                 if (hus.hus_states & HS_DIRTY)
9579                         printf(" dirty");
9580                 if (hus.hus_states & HS_ARCHIVED)
9581                         printf(" archived");
9582                 /* Display user-settable flags */
9583                 if (hus.hus_states & HS_NORELEASE)
9584                         printf(" never_release");
9585                 if (hus.hus_states & HS_NOARCHIVE)
9586                         printf(" never_archive");
9587                 if (hus.hus_states & HS_LOST)
9588                         printf(" lost_from_hsm");
9589
9590                 if (hus.hus_archive_id != 0)
9591                         printf(", archive_id:%d", hus.hus_archive_id);
9592                 printf("\n");
9593
9594         } while (++i < argc);
9595
9596         return 0;
9597 }
9598
9599 #define LFS_HSM_SET   0
9600 #define LFS_HSM_CLEAR 1
9601
9602 /**
9603  * Generic function to set or clear HSM flags.
9604  * Used by hsm_set and hsm_clear.
9605  *
9606  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
9607  */
9608 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
9609 {
9610         struct option long_opts[] = {
9611         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
9612         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
9613         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
9614         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
9615         { .val = 'h',   .name = "help",         .has_arg = no_argument },
9616         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
9617         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
9618         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
9619         { .name = NULL } };
9620         __u64 mask = 0;
9621         int c, rc;
9622         char *path;
9623         __u32 archive_id = 0;
9624         char *end = NULL;
9625
9626         if (argc < 3)
9627                 return CMD_HELP;
9628
9629         while ((c = getopt_long(argc, argv, "aAdehi:lr",
9630                                 long_opts, NULL)) != -1) {
9631                 switch (c) {
9632                 case 'l':
9633                         mask |= HS_LOST;
9634                         break;
9635                 case 'a':
9636                         mask |= HS_NOARCHIVE;
9637                         break;
9638                 case 'A':
9639                         mask |= HS_ARCHIVED;
9640                         break;
9641                 case 'r':
9642                         mask |= HS_NORELEASE;
9643                         break;
9644                 case 'd':
9645                         mask |= HS_DIRTY;
9646                         break;
9647                 case 'e':
9648                         mask |= HS_EXISTS;
9649                         break;
9650                 case 'i':
9651                         errno = 0;
9652                         archive_id = strtol(optarg, &end, 10);
9653                         if (errno != 0 || *end != '\0' || archive_id < 0) {
9654                                 fprintf(stderr,
9655                                         "%s: invalid archive_id: '%s'\n",
9656                                         progname, end);
9657                                 return CMD_HELP;
9658                         }
9659                         break;
9660                 default:
9661                         fprintf(stderr, "%s: unrecognized option '%s'\n",
9662                                 progname, argv[optind - 1]);
9663                         fallthrough;
9664                 case 'h':
9665                         return CMD_HELP;
9666                 }
9667         }
9668
9669         /* User should have specified a flag */
9670         if (mask == 0)
9671                 return CMD_HELP;
9672
9673         while (optind < argc) {
9674                 path = argv[optind];
9675
9676                 /* If mode == 0, this means we apply the mask. */
9677                 if (mode == LFS_HSM_SET)
9678                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
9679                 else
9680                         rc = llapi_hsm_state_set(path, 0, mask, 0);
9681
9682                 if (rc != 0) {
9683                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
9684                                 path, strerror(errno = -rc));
9685                         return rc;
9686                 }
9687                 optind++;
9688         }
9689
9690         return 0;
9691 }
9692
9693 static int lfs_hsm_action(int argc, char **argv)
9694 {
9695         int                              rc;
9696         int                              i = 1;
9697         char                            *path;
9698         struct hsm_current_action        hca;
9699         struct hsm_extent                he;
9700         enum hsm_user_action             hua;
9701         enum hsm_progress_states         hps;
9702
9703         if (argc < 2)
9704                 return CMD_HELP;
9705
9706         do {
9707                 path = argv[i];
9708
9709                 rc = llapi_hsm_current_action(path, &hca);
9710                 if (rc) {
9711                         fprintf(stderr, "can't get hsm action for %s: %s\n",
9712                                 path, strerror(errno = -rc));
9713                         return rc;
9714                 }
9715                 he = hca.hca_location;
9716                 hua = hca.hca_action;
9717                 hps = hca.hca_state;
9718
9719                 printf("%s: %s", path, hsm_user_action2name(hua));
9720
9721                 /* Skip file without action */
9722                 if (hca.hca_action == HUA_NONE) {
9723                         printf("\n");
9724                         continue;
9725                 }
9726
9727                 printf(" %s ", hsm_progress_state2name(hps));
9728
9729                 if ((hps == HPS_RUNNING) &&
9730                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
9731                         printf("(%llu bytes moved)\n",
9732                                (unsigned long long)he.length);
9733                 else if ((he.offset + he.length) == LUSTRE_EOF)
9734                         printf("(from %llu to EOF)\n",
9735                                (unsigned long long)he.offset);
9736                 else
9737                         printf("(from %llu to %llu)\n",
9738                                (unsigned long long)he.offset,
9739                                (unsigned long long)(he.offset + he.length));
9740
9741         } while (++i < argc);
9742
9743         return 0;
9744 }
9745
9746 static int lfs_hsm_set(int argc, char **argv)
9747 {
9748         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
9749 }
9750
9751 static int lfs_hsm_clear(int argc, char **argv)
9752 {
9753         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
9754 }
9755
9756 /**
9757  * Check file state and return its fid, to be used by lfs_hsm_request().
9758  *
9759  * \param[in]     file      Path to file to check
9760  * \param[in,out] fid       Pointer to allocated lu_fid struct.
9761  * \param[in,out] last_dev  Pointer to last device id used.
9762  *
9763  * \return 0 on success.
9764  */
9765 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
9766                                 dev_t *last_dev)
9767 {
9768         struct stat     st;
9769         int             rc;
9770
9771         rc = lstat(file, &st);
9772         if (rc) {
9773                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
9774                 return -errno;
9775         }
9776         /*
9777          * Checking for regular file as archiving as posix copytool
9778          * rejects archiving files other than regular files
9779          */
9780         if (!S_ISREG(st.st_mode)) {
9781                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
9782                 return CMD_HELP;
9783         }
9784         /* A request should be ... */
9785         if (*last_dev != st.st_dev && *last_dev != 0) {
9786                 fprintf(stderr,
9787                         "All files should be on the same filesystem: %s\n",
9788                         file);
9789                 return -EINVAL;
9790         }
9791         *last_dev = st.st_dev;
9792
9793         rc = llapi_path2fid(file, fid);
9794         if (rc) {
9795                 fprintf(stderr, "Cannot read FID of %s: %s\n",
9796                         file, strerror(-rc));
9797                 return rc;
9798         }
9799         return 0;
9800 }
9801
9802 /* Fill an HSM HUR item with a given file name.
9803  *
9804  * If mntpath is set, then the filename is actually a FID, and no
9805  * lookup on the filesystem will be performed.
9806  *
9807  * \param[in]  hur         the user request to fill
9808  * \param[in]  idx         index of the item inside the HUR to fill
9809  * \param[in]  mntpath     mountpoint of Lustre
9810  * \param[in]  fname       filename (if mtnpath is NULL)
9811  *                         or FID (if mntpath is set)
9812  * \param[in]  last_dev    pointer to last device id used
9813  *
9814  * \retval 0 on success
9815  * \retval CMD_HELP or a negative errno on error
9816  */
9817 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
9818                          const char *mntpath, const char *fname,
9819                          dev_t *last_dev)
9820 {
9821         struct hsm_user_item *hui = &hur->hur_user_item[idx];
9822         int rc;
9823
9824         hui->hui_extent.length = -1;
9825
9826         if (mntpath) {
9827                 rc = llapi_fid_parse(fname, &hui->hui_fid, NULL);
9828                 if (rc)
9829                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
9830                                 fname);
9831         } else {
9832                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
9833         }
9834
9835         if (rc == 0)
9836                 hur->hur_request.hr_itemcount++;
9837
9838         return rc;
9839 }
9840
9841 static int lfs_hsm_request(int argc, char **argv, int action)
9842 {
9843         struct option long_opts[] = {
9844         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
9845         { .val = 'D',   .name = "data",         .has_arg = required_argument },
9846         { .val = 'h',   .name = "help",         .has_arg = no_argument },
9847         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
9848         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
9849         { .name = NULL } };
9850         dev_t last_dev = 0;
9851         struct hsm_user_request *hur, *oldhur;
9852         int c, i;
9853         size_t len;
9854         int nbfile;
9855         char *line = NULL;
9856         char *filelist = NULL;
9857         char fullpath[PATH_MAX];
9858         char *opaque = NULL;
9859         int opaque_len = 0;
9860         int archive_id = 0;
9861         FILE *fp;
9862         int nbfile_alloc = 0;
9863         char *some_file = NULL;
9864         char *mntpath = NULL;
9865         int rc;
9866
9867         if (argc < 2)
9868                 return CMD_HELP;
9869
9870         while ((c = getopt_long(argc, argv, "a:D:hl:m:",
9871                                 long_opts, NULL)) != -1) {
9872                 switch (c) {
9873                 case 'l':
9874                         filelist = optarg;
9875                         break;
9876                 case 'D':
9877                         opaque = optarg;
9878                         break;
9879                 case 'a':
9880                         if (action != HUA_ARCHIVE &&
9881                             action != HUA_REMOVE) {
9882                                 fprintf(stderr,
9883                                         "error: -a is supported only when archiving or removing\n");
9884                                 return CMD_HELP;
9885                         }
9886                         archive_id = atoi(optarg);
9887                         break;
9888                 case 'm':
9889                         if (!some_file) {
9890                                 mntpath = optarg;
9891                                 some_file = strdup(optarg);
9892                         }
9893                         break;
9894                 default:
9895                         fprintf(stderr, "%s: unrecognized option '%s'\n",
9896                                 progname, argv[optind - 1]);
9897                         fallthrough;
9898                 case 'h':
9899                         return CMD_HELP;
9900                 }
9901         }
9902
9903         /* All remaining args are files, so we have at least nbfile */
9904         nbfile = argc - optind;
9905
9906         if ((nbfile == 0) && (!filelist))
9907                 return CMD_HELP;
9908
9909         if (opaque)
9910                 opaque_len = strlen(opaque);
9911
9912         /*
9913          * Alloc the request structure with enough place to store all files
9914          * from command line.
9915          */
9916         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
9917         if (!hur) {
9918                 fprintf(stderr, "Cannot create the request: %s\n",
9919                         strerror(errno));
9920                 return errno;
9921         }
9922         nbfile_alloc = nbfile;
9923
9924         hur->hur_request.hr_action = action;
9925         hur->hur_request.hr_archive_id = archive_id;
9926         hur->hur_request.hr_flags = 0;
9927
9928         /* All remaining args are files, add them */
9929         if (nbfile != 0 && some_file == NULL)
9930                 some_file = strdup(argv[optind]);
9931
9932         for (i = 0; i < nbfile; i++) {
9933                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
9934                                    &last_dev);
9935                 if (rc)
9936                         goto out_free;
9937         }
9938
9939         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
9940
9941         /* If a filelist was specified, read the filelist from it. */
9942         if (filelist) {
9943                 fp = fopen(filelist, "r");
9944                 if (!fp) {
9945                         fprintf(stderr, "Cannot read the file list %s: %s\n",
9946                                 filelist, strerror(errno));
9947                         rc = -errno;
9948                         goto out_free;
9949                 }
9950
9951                 while ((rc = getline(&line, &len, fp)) != -1) {
9952                         /*
9953                          * If allocated buffer was too small, get something
9954                          * larger
9955                          */
9956                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
9957                                 ssize_t size;
9958
9959                                 nbfile_alloc = nbfile_alloc * 2 + 1;
9960                                 oldhur = hur;
9961                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
9962                                                                    opaque_len);
9963                                 if (!hur) {
9964                                         fprintf(stderr,
9965                                                 "hsm: cannot allocate the request: %s\n",
9966                                                 strerror(errno));
9967                                         hur = oldhur;
9968                                         rc = -errno;
9969                                         fclose(fp);
9970                                         goto out_free;
9971                                 }
9972                                 size = hur_len(oldhur);
9973                                 if (size < 0) {
9974                                         fprintf(stderr,
9975                                                 "hsm: cannot allocate %u files + %u bytes data\n",
9976                                                 oldhur->hur_request.hr_itemcount,
9977                                                 oldhur->hur_request.hr_data_len);
9978                                         free(hur);
9979                                         hur = oldhur;
9980                                         rc = -E2BIG;
9981                                         fclose(fp);
9982                                         goto out_free;
9983                                 }
9984                                 memcpy(hur, oldhur, size);
9985                                 free(oldhur);
9986                         }
9987
9988                         /* Chop CR */
9989                         if (line[strlen(line) - 1] == '\n')
9990                                 line[strlen(line) - 1] = '\0';
9991
9992                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
9993                                            mntpath, line, &last_dev);
9994                         if (rc) {
9995                                 fclose(fp);
9996                                 goto out_free;
9997                         }
9998
9999                         if (!some_file) {
10000                                 some_file = line;
10001                                 line = NULL;
10002                         }
10003                 }
10004
10005                 rc = fclose(fp);
10006                 free(line);
10007         }
10008
10009         /* If a --data was used, add it to the request */
10010         hur->hur_request.hr_data_len = opaque_len;
10011         if (opaque)
10012                 memcpy(hur_data(hur), opaque, opaque_len);
10013
10014         /* Send the HSM request */
10015         if (realpath(some_file, fullpath) == NULL) {
10016                 fprintf(stderr, "Could not find path '%s': %s\n",
10017                         some_file, strerror(errno));
10018         }
10019         rc = llapi_hsm_request(fullpath, hur);
10020         if (rc) {
10021                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
10022                         some_file, strerror(-rc));
10023                 goto out_free;
10024         }
10025
10026 out_free:
10027         free(some_file);
10028         free(hur);
10029         return rc;
10030 }
10031
10032 static int lfs_hsm_archive(int argc, char **argv)
10033 {
10034         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
10035 }
10036
10037 static int lfs_hsm_restore(int argc, char **argv)
10038 {
10039         return lfs_hsm_request(argc, argv, HUA_RESTORE);
10040 }
10041
10042 static int lfs_hsm_release(int argc, char **argv)
10043 {
10044         return lfs_hsm_request(argc, argv, HUA_RELEASE);
10045 }
10046
10047 static int lfs_hsm_remove(int argc, char **argv)
10048 {
10049         return lfs_hsm_request(argc, argv, HUA_REMOVE);
10050 }
10051
10052 static int lfs_hsm_cancel(int argc, char **argv)
10053 {
10054         return lfs_hsm_request(argc, argv, HUA_CANCEL);
10055 }
10056
10057 static int lfs_swap_layouts(int argc, char **argv)
10058 {
10059         if (argc != 3)
10060                 return CMD_HELP;
10061
10062         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
10063                                   SWAP_LAYOUTS_KEEP_MTIME |
10064                                   SWAP_LAYOUTS_KEEP_ATIME);
10065 }
10066
10067 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
10068
10069 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
10070
10071 int lfs_get_mode(const char *string)
10072 {
10073         enum lock_mode_user mode;
10074
10075         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
10076                 if (lock_mode_names[mode] == NULL)
10077                         continue;
10078                 if (strcasecmp(string, lock_mode_names[mode]) == 0)
10079                         return mode;
10080         }
10081
10082         return -EINVAL;
10083 }
10084
10085 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
10086 {
10087         enum lu_ladvise_type advice;
10088
10089         for (advice = 0;
10090              advice < ARRAY_SIZE(ladvise_names); advice++) {
10091                 if (ladvise_names[advice] == NULL)
10092                         continue;
10093                 if (strcmp(string, ladvise_names[advice]) == 0)
10094                         return advice;
10095         }
10096
10097         return LU_LADVISE_INVALID;
10098 }
10099
10100 static int lfs_ladvise(int argc, char **argv)
10101 {
10102         struct option long_opts[] = {
10103         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
10104         { .val = 'b',   .name = "background",   .has_arg = no_argument },
10105         { .val = 'e',   .name = "end",          .has_arg = required_argument },
10106         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10107         { .val = 'l',   .name = "length",       .has_arg = required_argument },
10108         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
10109         { .val = 's',   .name = "start",        .has_arg = required_argument },
10110         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
10111         { .name = NULL } };
10112         struct llapi_lu_ladvise advice;
10113         enum lu_ladvise_type advice_type = LU_LADVISE_INVALID;
10114         unsigned long long start = 0;
10115         unsigned long long end = LUSTRE_EOF;
10116         unsigned long long length = 0;
10117         unsigned long long size_units;
10118         unsigned long long flags = 0;
10119         int c, fd, rc = 0;
10120         const char *path;
10121         int mode = 0;
10122
10123         optind = 0;
10124         while ((c = getopt_long(argc, argv, "a:be:hl:m:s:u",
10125                                 long_opts, NULL)) != -1) {
10126                 switch (c) {
10127                 case 'a':
10128                         advice_type = lfs_get_ladvice(optarg);
10129                         if (advice_type == LU_LADVISE_INVALID) {
10130                                 fprintf(stderr,
10131                                         "%s: invalid advice type '%s'\n",
10132                                         progname, optarg);
10133                                 fprintf(stderr, "Valid types:");
10134
10135                                 for (advice_type = 0;
10136                                      advice_type < ARRAY_SIZE(ladvise_names);
10137                                      advice_type++) {
10138                                         if (ladvise_names[advice_type] == NULL)
10139                                                 continue;
10140                                         fprintf(stderr, " %s",
10141                                                 ladvise_names[advice_type]);
10142                                 }
10143                                 fprintf(stderr, "\n");
10144
10145                                 return CMD_HELP;
10146                         }
10147                         break;
10148                 case 'b':
10149                         flags |= LF_ASYNC;
10150                         break;
10151                 case 'u':
10152                         flags |= LF_UNSET;
10153                         break;
10154                 case 'e':
10155                         size_units = 1;
10156                         rc = llapi_parse_size(optarg, &end,
10157                                               &size_units, 0);
10158                         if (rc) {
10159                                 fprintf(stderr, "%s: bad end offset '%s'\n",
10160                                         argv[0], optarg);
10161                                 return CMD_HELP;
10162                         }
10163                         break;
10164                 case 's':
10165                         size_units = 1;
10166                         rc = llapi_parse_size(optarg, &start,
10167                                               &size_units, 0);
10168                         if (rc) {
10169                                 fprintf(stderr,
10170                                         "%s: bad start offset '%s'\n",
10171                                         argv[0], optarg);
10172                                 return CMD_HELP;
10173                         }
10174                         break;
10175                 case 'l':
10176                         size_units = 1;
10177                         rc = llapi_parse_size(optarg, &length,
10178                                               &size_units, 0);
10179                         if (rc) {
10180                                 fprintf(stderr, "%s: bad length '%s'\n",
10181                                         argv[0], optarg);
10182                                 return CMD_HELP;
10183                         }
10184                         break;
10185                 case 'm':
10186                         mode = lfs_get_mode(optarg);
10187                         if (mode < 0) {
10188                                 fprintf(stderr,
10189                                         "%s: bad mode '%s', valid modes are READ or WRITE\n",
10190                                         argv[0], optarg);
10191                                 return CMD_HELP;
10192                         }
10193                         break;
10194                 default:
10195                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10196                                 progname, argv[optind - 1]);
10197                         fallthrough;
10198                 case 'h':
10199                         return CMD_HELP;
10200                 }
10201         }
10202
10203         if (advice_type == LU_LADVISE_INVALID) {
10204                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
10205                 fprintf(stderr, "Valid types:");
10206                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
10207                      advice_type++) {
10208                         if (ladvise_names[advice_type] == NULL)
10209                                 continue;
10210                         fprintf(stderr, " %s", ladvise_names[advice_type]);
10211                 }
10212                 fprintf(stderr, "\n");
10213                 return CMD_HELP;
10214         }
10215
10216         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
10217                 fprintf(stderr,
10218                         "%s: Lock no expand advice is a per file descriptor advice, so when called from lfs, it does nothing.\n",
10219                         argv[0]);
10220                 return CMD_HELP;
10221         }
10222
10223         if (argc <= optind) {
10224                 fprintf(stderr, "%s: please give one or more file names\n",
10225                         argv[0]);
10226                 return CMD_HELP;
10227         }
10228
10229         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
10230                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
10231                         argv[0]);
10232                 return CMD_HELP;
10233         }
10234
10235         if (end == LUSTRE_EOF && length != 0)
10236                 end = start + length;
10237
10238         if (end <= start) {
10239                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
10240                         argv[0], start, end);
10241                 return CMD_HELP;
10242         }
10243
10244         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
10245                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
10246                         argv[0]);
10247                 return CMD_HELP;
10248         }
10249
10250         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
10251                 fprintf(stderr, "%s: mode is required with lockahead\n",
10252                         argv[0]);
10253                 return CMD_HELP;
10254         }
10255
10256         while (optind < argc) {
10257                 int rc2;
10258
10259                 path = argv[optind++];
10260
10261                 fd = open(path, O_RDONLY);
10262                 if (fd < 0) {
10263                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10264                                 argv[0], path, strerror(errno));
10265                         rc2 = -errno;
10266                         goto next;
10267                 }
10268
10269                 advice.lla_start = start;
10270                 advice.lla_end = end;
10271                 advice.lla_advice = advice_type;
10272                 advice.lla_value1 = 0;
10273                 advice.lla_value2 = 0;
10274                 advice.lla_value3 = 0;
10275                 advice.lla_value4 = 0;
10276                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
10277                         advice.lla_lockahead_mode = mode;
10278                         advice.lla_peradvice_flags = flags;
10279                 }
10280
10281                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
10282                 close(fd);
10283                 if (rc2 < 0) {
10284                         fprintf(stderr,
10285                                 "%s: cannot give advice '%s' to file '%s': %s\n",
10286                                 argv[0], ladvise_names[advice_type],
10287                                 path, strerror(errno));
10288
10289                         goto next;
10290                 }
10291
10292 next:
10293                 if (rc == 0 && rc2 < 0)
10294                         rc = rc2;
10295         }
10296         return rc;
10297 }
10298
10299 static const char *const heat_names[] = LU_HEAT_NAMES;
10300
10301 static int lfs_heat_get(int argc, char **argv)
10302 {
10303         struct lu_heat *heat;
10304         int rc = 0, rc2;
10305         char *path;
10306         int fd;
10307         int i;
10308
10309         if (argc <= 1)
10310                 return CMD_HELP;
10311
10312         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
10313         if (!heat) {
10314                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
10315                 return -ENOMEM;
10316         }
10317
10318         optind = 1;
10319         while (optind < argc) {
10320                 path = argv[optind++];
10321
10322                 fd = open(path, O_RDONLY);
10323                 if (fd < 0) {
10324                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10325                                 argv[0], path, strerror(errno));
10326                         rc2 = -errno;
10327                         goto next;
10328                 }
10329
10330                 heat->lh_count = OBD_HEAT_COUNT;
10331                 rc2 = llapi_heat_get(fd, heat);
10332                 close(fd);
10333                 if (rc2 < 0) {
10334                         fprintf(stderr,
10335                                 "%s: cannot get heat of file '%s': %s\n",
10336                                 argv[0], path, strerror(errno));
10337                         goto next;
10338                 }
10339
10340                 printf("flags: %x\n", heat->lh_flags);
10341                 for (i = 0; i < heat->lh_count; i++)
10342                         printf("%s: %llu\n", heat_names[i],
10343                                (unsigned long long)heat->lh_heat[i]);
10344 next:
10345                 if (rc == 0 && rc2 < 0)
10346                         rc = rc2;
10347         }
10348
10349         free(heat);
10350         return rc;
10351 }
10352
10353 static int lfs_heat_set(int argc, char **argv)
10354 {
10355         struct option long_opts[] = {
10356         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
10357         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10358         { .val = 'o',   .name = "off",          .has_arg = no_argument },
10359         { .val = 'O',   .name = "on",           .has_arg = no_argument },
10360         { .name = NULL } };
10361         enum lu_heat_flag flags = 0;
10362         int rc = 0, rc2;
10363         char *path;
10364         int fd;
10365         int c;
10366
10367         if (argc <= 1)
10368                 return CMD_HELP;
10369
10370         optind = 0;
10371         while ((c = getopt_long(argc, argv, "choO", long_opts, NULL)) != -1) {
10372                 switch (c) {
10373                 case 'c':
10374                         flags |= LU_HEAT_FLAG_CLEAR;
10375                         break;
10376                 case 'o':
10377                         flags |= LU_HEAT_FLAG_CLEAR;
10378                         flags |= LU_HEAT_FLAG_OFF;
10379                         break;
10380                 case 'O':
10381                         flags &= ~LU_HEAT_FLAG_OFF;
10382                         break;
10383                 default:
10384                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10385                                 progname, argv[optind - 1]);
10386                         fallthrough;
10387                 case 'h':
10388                         return CMD_HELP;
10389                 }
10390         }
10391
10392         if (argc <= optind) {
10393                 fprintf(stderr, "%s: please give one or more file names\n",
10394                         argv[0]);
10395                 return CMD_HELP;
10396         }
10397
10398         while (optind < argc) {
10399                 path = argv[optind++];
10400
10401                 fd = open(path, O_RDONLY);
10402                 if (fd < 0) {
10403                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
10404                                 argv[0], path, strerror(errno));
10405                         rc2 = -errno;
10406                         goto next;
10407                 }
10408
10409                 rc2 = llapi_heat_set(fd, flags);
10410                 close(fd);
10411                 if (rc2 < 0) {
10412                         fprintf(stderr,
10413                                 "%s: cannot setflags heat of file '%s': %s\n",
10414                                 argv[0], path, strerror(errno));
10415                         goto next;
10416                 }
10417 next:
10418                 if (rc == 0 && rc2 < 0)
10419                         rc = rc2;
10420         }
10421         return rc;
10422 }
10423
10424 /**
10425  * The input string contains a comma delimited list of component ids and
10426  * ranges, for example "1,2-4,7".
10427  */
10428 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
10429 {
10430         bool end_of_loop = false;
10431         char *ptr = NULL;
10432         int nr = 0;
10433         int rc;
10434
10435         if (!arg)
10436                 return -EINVAL;
10437
10438         while (!end_of_loop) {
10439                 int start_index;
10440                 int end_index;
10441                 int i;
10442                 char *endptr = NULL;
10443
10444                 rc = -EINVAL;
10445                 ptr = strchrnul(arg, ',');
10446                 end_of_loop = *ptr == '\0';
10447                 *ptr = '\0';
10448
10449                 start_index = strtol(arg, &endptr, 0);
10450                 if (endptr == arg) /* no data at all */
10451                         break;
10452                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
10453                         break;
10454                 if (start_index < 0)
10455                         break;
10456
10457                 end_index = start_index;
10458                 if (*endptr == '-') {
10459                         end_index = strtol(endptr + 1, &endptr, 0);
10460                         if (*endptr != '\0')
10461                                 break;
10462                         if (end_index < start_index)
10463                                 break;
10464                 }
10465
10466                 for (i = start_index; i <= end_index && size > 0; i++) {
10467                         int j;
10468
10469                         /* remove duplicate */
10470                         for (j = 0; j < nr; j++) {
10471                                 if (ids[j] == i)
10472                                         break;
10473                         }
10474                         if (j == nr) { /* no duplicate */
10475                                 ids[nr++] = i;
10476                                 --size;
10477                         }
10478                 }
10479
10480                 if (size == 0 && i < end_index)
10481                         break;
10482
10483                 *ptr = ',';
10484                 arg = ++ptr;
10485                 rc = 0;
10486         }
10487         if (!end_of_loop && ptr)
10488                 *ptr = ',';
10489
10490         return rc < 0 ? rc : nr;
10491 }
10492
10493 /**
10494  * struct verify_mirror_id - Mirror id to be verified.
10495  * @mirror_id:   A specified mirror id.
10496  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
10497  */
10498 struct verify_mirror_id {
10499         __u16 mirror_id;
10500         bool is_valid_id;
10501 };
10502
10503 /**
10504  * compare_mirror_ids() - Compare mirror ids.
10505  * @layout: Mirror component list.
10506  * @cbdata: Callback data in verify_mirror_id structure.
10507  *
10508  * This is a callback function called by llapi_layout_comp_iterate()
10509  * to compare the specified mirror id with the one in the current
10510  * component of @layout. If they are the same, then the specified
10511  * mirror id is valid.
10512  *
10513  * Return: a negative error code on failure or
10514  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
10515  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
10516  */
10517 static inline
10518 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
10519 {
10520         struct verify_mirror_id *mirror_id_cbdata =
10521                                  (struct verify_mirror_id *)cbdata;
10522         uint32_t mirror_id;
10523         int rc = 0;
10524
10525         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
10526         if (rc < 0) {
10527                 rc = -errno;
10528                 fprintf(stderr,
10529                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
10530                         progname, strerror(errno));
10531                 return rc;
10532         }
10533
10534         if (mirror_id_cbdata->mirror_id == mirror_id) {
10535                 mirror_id_cbdata->is_valid_id = true;
10536                 return LLAPI_LAYOUT_ITER_STOP;
10537         }
10538
10539         return LLAPI_LAYOUT_ITER_CONT;
10540 }
10541
10542 /**
10543  * verify_mirror_ids() - Verify specified mirror ids.
10544  * @fname:      Mirrored file name.
10545  * @mirror_ids: Specified mirror ids to be verified.
10546  * @ids_nr:     Number of specified mirror ids.
10547  *
10548  * This function verifies that specified @mirror_ids are valid
10549  * in the mirrored file @fname.
10550  *
10551  * Return: 0 on success or a negative error code on failure.
10552  */
10553 static inline
10554 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
10555 {
10556         struct llapi_layout *layout = NULL;
10557         struct verify_mirror_id mirror_id_cbdata = { 0 };
10558         struct stat stbuf;
10559         uint32_t flr_state;
10560         int i;
10561         int fd;
10562         int rc = 0;
10563         int rc2 = 0;
10564
10565         if (ids_nr <= 0)
10566                 return -EINVAL;
10567
10568         if (stat(fname, &stbuf) < 0) {
10569                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10570                         progname, fname, strerror(errno));
10571                 rc = -errno;
10572                 goto error;
10573         }
10574
10575         if (!S_ISREG(stbuf.st_mode)) {
10576                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10577                         progname, fname);
10578                 rc = -EINVAL;
10579                 goto error;
10580         }
10581
10582         fd = open(fname, O_DIRECT | O_RDONLY);
10583         if (fd < 0) {
10584                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10585                         progname, fname, strerror(errno));
10586                 rc = -errno;
10587                 goto error;
10588         }
10589
10590         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10591         if (rc < 0) {
10592                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10593                         progname, fname, strerror(errno));
10594                 goto close_fd;
10595         }
10596
10597         layout = llapi_layout_get_by_fd(fd, 0);
10598         if (!layout) {
10599                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10600                         progname, fname, strerror(errno));
10601                 rc = -errno;
10602                 llapi_lease_release(fd);
10603                 goto close_fd;
10604         }
10605
10606         rc = llapi_layout_flags_get(layout, &flr_state);
10607         if (rc < 0) {
10608                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10609                         progname, fname, strerror(errno));
10610                 rc = -errno;
10611                 goto free_layout;
10612         }
10613
10614         flr_state &= LCM_FL_FLR_MASK;
10615         switch (flr_state) {
10616         case LCM_FL_NONE:
10617                 rc = -EINVAL;
10618                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10619                         progname, fname, llapi_layout_flags_string(flr_state));
10620                 goto free_layout;
10621         default:
10622                 break;
10623         }
10624
10625         rc2 = 0;
10626         for (i = 0; i < ids_nr; i++) {
10627                 mirror_id_cbdata.mirror_id = mirror_ids[i];
10628                 mirror_id_cbdata.is_valid_id = false;
10629
10630                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
10631                                                &mirror_id_cbdata);
10632                 if (rc < 0) {
10633                         rc = -errno;
10634                         fprintf(stderr,
10635                                 "%s: '%s' failed to verify mirror id: %u.\n",
10636                                 progname, fname, mirror_ids[i]);
10637                         goto free_layout;
10638                 }
10639
10640                 if (!mirror_id_cbdata.is_valid_id) {
10641                         rc2 = -EINVAL;
10642                         fprintf(stderr,
10643                                 "%s: '%s' invalid specified mirror id: %u.\n",
10644                                 progname, fname, mirror_ids[i]);
10645                 }
10646         }
10647         rc = rc2;
10648
10649 free_layout:
10650         llapi_layout_free(layout);
10651         llapi_lease_release(fd);
10652 close_fd:
10653         close(fd);
10654 error:
10655         return rc;
10656 }
10657
10658 static inline
10659 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
10660                            __u16 *mirror_ids, int ids_nr)
10661 {
10662         struct llapi_resync_comp comp_array[1024] = { { 0 } };
10663         struct llapi_layout *layout;
10664         struct stat stbuf;
10665         uint32_t flr_state;
10666         uint64_t start;
10667         uint64_t end;
10668         int comp_size = 0;
10669         int idx;
10670         int fd;
10671         int rc;
10672         int rc2;
10673
10674         if (stat(fname, &stbuf) < 0) {
10675                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10676                         progname, fname, strerror(errno));
10677                 rc = -errno;
10678                 goto error;
10679         }
10680         if (!S_ISREG(stbuf.st_mode)) {
10681                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10682                         progname, fname);
10683                 rc = -EINVAL;
10684                 goto error;
10685         }
10686
10687         /* Allow mirror resync even without the key on encrypted files */
10688         fd = open(fname, O_DIRECT | O_RDWR | O_FILE_ENC);
10689         if (fd < 0) {
10690                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10691                         progname, fname, strerror(errno));
10692                 rc = -errno;
10693                 goto error;
10694         }
10695
10696         layout = llapi_layout_get_by_fd(fd, 0);
10697         if (!layout) {
10698                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10699                         progname, fname, strerror(errno));
10700                 rc = -errno;
10701                 goto close_fd;
10702         }
10703
10704         rc = llapi_layout_flags_get(layout, &flr_state);
10705         if (rc) {
10706                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10707                         progname, fname, strerror(errno));
10708                 rc = -errno;
10709                 goto free_layout;
10710         }
10711
10712         flr_state &= LCM_FL_FLR_MASK;
10713         if (flr_state == LCM_FL_NONE) {
10714                 rc = -EINVAL;
10715                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
10716                         progname, fname);
10717                 goto free_layout;
10718         }
10719
10720         /* get stale component info */
10721         comp_size = llapi_mirror_find_stale(layout, comp_array,
10722                                             ARRAY_SIZE(comp_array),
10723                                             mirror_ids, ids_nr);
10724         if (comp_size <= 0) {
10725                 rc = comp_size;
10726                 goto free_layout;
10727         }
10728
10729         ioc->lil_mode = LL_LEASE_WRLCK;
10730         ioc->lil_flags = LL_LEASE_RESYNC;
10731         rc = llapi_lease_set(fd, ioc);
10732         if (rc < 0) {
10733                 if (rc == -EALREADY)
10734                         rc = 0;
10735                 else
10736                         fprintf(stderr,
10737                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
10738                                 progname, fname, strerror(-rc));
10739                 goto free_layout;
10740         }
10741
10742         /* get the read range [start, end) */
10743         start = comp_array[0].lrc_start;
10744         end = comp_array[0].lrc_end;
10745         for (idx = 1; idx < comp_size; idx++) {
10746                 if (comp_array[idx].lrc_start < start)
10747                         start = comp_array[idx].lrc_start;
10748                 if (end < comp_array[idx].lrc_end)
10749                         end = comp_array[idx].lrc_end;
10750         }
10751
10752         rc = llapi_lease_check(fd);
10753         if (rc != LL_LEASE_WRLCK) {
10754                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
10755                         progname, fname);
10756                 goto free_layout;
10757         }
10758
10759         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
10760                                       start, end);
10761         if (rc < 0)
10762                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %s.\n",
10763                         progname, fname, strerror(-rc));
10764
10765         rc = migrate_set_timestamps(fd, &stbuf);
10766         if (rc < 0) {
10767                 fprintf(stderr, "%s: '%s' cannot set timestamps: %s\n",
10768                         progname, fname, strerror(-rc));
10769                 goto free_layout;
10770         }
10771
10772         /* need to do the lease unlock even resync fails */
10773         ioc->lil_mode = LL_LEASE_UNLCK;
10774         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10775         ioc->lil_count = 0;
10776         for (idx = 0; idx < comp_size; idx++) {
10777                 if (comp_array[idx].lrc_synced) {
10778                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
10779                         ioc->lil_count++;
10780                 }
10781         }
10782
10783         rc2 = llapi_lease_set(fd, ioc);
10784         /**
10785          * llapi_lease_set returns lease mode when it request to unlock
10786          * the lease lock.
10787          */
10788         if (rc2 <= 0) {
10789                 /* rc2 == 0 means lost lease lock */
10790                 if (rc2 == 0 && rc == 0)
10791                         rc = -EBUSY;
10792                 else
10793                         rc = rc2;
10794                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
10795                         progname, fname,
10796                         rc2 == 0 ? "lost lease lock" : strerror(-rc2));
10797
10798                 llapi_lease_release(fd);
10799                 goto free_layout;
10800         }
10801
10802 free_layout:
10803         llapi_layout_free(layout);
10804 close_fd:
10805         close(fd);
10806 error:
10807         return rc;
10808 }
10809
10810 static inline int lfs_mirror_resync(int argc, char **argv)
10811 {
10812         struct option long_opts[] = {
10813         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10814         { .val = 'o',   .name = "only",         .has_arg = required_argument },
10815         { .name = NULL } };
10816         struct ll_ioc_lease *ioc = NULL;
10817         __u16 mirror_ids[128] = { 0 };
10818         int ids_nr = 0;
10819         int c;
10820         int rc = 0;
10821
10822         while ((c = getopt_long(argc, argv, "ho:", long_opts, NULL)) >= 0) {
10823                 switch (c) {
10824                 case 'o':
10825                         rc = parse_mirror_ids(mirror_ids,
10826                                         sizeof(mirror_ids) / sizeof(__u16),
10827                                         optarg);
10828                         if (rc < 0) {
10829                                 fprintf(stderr,
10830                                         "%s: bad mirror ids '%s'.\n",
10831                                         argv[0], optarg);
10832                                 goto error;
10833                         }
10834                         ids_nr = rc;
10835                         break;
10836                 default:
10837                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10838                                 progname, argv[optind - 1]);
10839                         fallthrough;
10840                 case 'h':
10841                         rc = CMD_HELP;
10842                         goto error;
10843                 }
10844         }
10845
10846         if (argc == optind) {
10847                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
10848                 rc = CMD_HELP;
10849                 goto error;
10850         }
10851
10852         if (ids_nr > 0 && argc > optind + 1) {
10853                 fprintf(stderr,
10854                     "%s: option '--only' cannot be used upon multiple files.\n",
10855                         argv[0]);
10856                 rc = CMD_HELP;
10857                 goto error;
10858         }
10859
10860         if (ids_nr > 0) {
10861                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
10862                 if (rc < 0)
10863                         goto error;
10864         }
10865
10866         /* set the lease on the file */
10867         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
10868         if (!ioc) {
10869                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
10870                         argv[0], strerror(errno));
10871                 rc = -errno;
10872                 goto error;
10873         }
10874
10875         for (; optind < argc; optind++) {
10876                 rc = lfs_mirror_resync_file(argv[optind], ioc,
10877                                             mirror_ids, ids_nr);
10878                 /* ignore previous file's error, continue with next file */
10879
10880                 /* reset ioc */
10881                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
10882         }
10883
10884         free(ioc);
10885 error:
10886         return rc;
10887 }
10888
10889 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
10890 {
10891         struct llapi_layout *layout;
10892         int rc;
10893
10894         layout = llapi_layout_get_by_fd(fd, 0);
10895         if (!layout) {
10896                 fprintf(stderr, "could not get layout.\n");
10897                 return  -EINVAL;
10898         }
10899
10900         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
10901         if (rc < 0) {
10902                 fprintf(stderr, "failed to iterate layout\n");
10903                 llapi_layout_free(layout);
10904
10905                 return rc;
10906         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
10907                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
10908                 llapi_layout_free(layout);
10909
10910                 return -EINVAL;
10911         }
10912         llapi_layout_free(layout);
10913
10914         return 0;
10915 }
10916
10917 /**
10918  * Check whether two files are the same file
10919  * \retval      0  same file
10920  * \retval      1  not the same file
10921  * \retval      <0 error code
10922  */
10923 static inline int check_same_file(int fd, const char *f2)
10924 {
10925         struct stat stbuf1;
10926         struct stat stbuf2;
10927
10928         if (fstat(fd, &stbuf1) < 0)
10929                 return -errno;
10930
10931         if (stat(f2, &stbuf2) < 0)
10932                 return 1;
10933
10934         if (stbuf1.st_rdev == stbuf2.st_rdev &&
10935             stbuf1.st_ino == stbuf2.st_ino)
10936                 return 0;
10937
10938         return 1;
10939 }
10940
10941 static inline int lfs_mirror_read(int argc, char **argv)
10942 {
10943         int rc = CMD_HELP;
10944         __u16 mirror_id = 0;
10945         const char *outfile = NULL;
10946         char *fname;
10947         int fd = 0;
10948         int outfd;
10949         int c;
10950         void *buf;
10951         const size_t buflen = 4 << 20;
10952         off_t pos;
10953         struct option long_opts[] = {
10954         { .val = 'h',   .name = "help",         .has_arg = no_argument },
10955         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
10956         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
10957         { .name = NULL } };
10958
10959         while ((c = getopt_long(argc, argv, "hN:o:", long_opts, NULL)) >= 0) {
10960                 char *end;
10961
10962                 switch (c) {
10963                 case 'N': {
10964                         unsigned long int id;
10965
10966                         errno = 0;
10967                         id = strtoul(optarg, &end, 0);
10968                         if (errno != 0 || *end != '\0' || id == 0 ||
10969                             id > UINT16_MAX) {
10970                                 fprintf(stderr,
10971                                         "%s %s: invalid mirror ID '%s'\n",
10972                                         progname, argv[0], optarg);
10973                                 return rc;
10974                         }
10975
10976                         mirror_id = (__u16)id;
10977                         break;
10978                 }
10979                 case 'o':
10980                         outfile = optarg;
10981                         break;
10982                 default:
10983                         fprintf(stderr, "%s: unrecognized option '%s'\n",
10984                                 progname, argv[optind - 1]);
10985                         fallthrough;
10986                 case 'h':
10987                         return CMD_HELP;
10988                 }
10989         }
10990
10991         if (argc == optind) {
10992                 fprintf(stderr, "%s %s: no mirrored file provided\n",
10993                         progname, argv[0]);
10994                 return rc;
10995         } else if (argc > optind + 1) {
10996                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
10997                 return rc;
10998         }
10999
11000         if (mirror_id == 0) {
11001                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
11002                         progname, argv[0]);
11003                 return rc;
11004         }
11005
11006         /* open mirror file */
11007         fname = argv[optind];
11008         fd = open(fname, O_DIRECT | O_RDONLY);
11009         if (fd < 0) {
11010                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11011                         progname, argv[0], fname, strerror(errno));
11012                 return rc;
11013         }
11014
11015         /* verify mirror id */
11016         rc = verify_mirror_id_by_fd(fd, mirror_id);
11017         if (rc) {
11018                 fprintf(stderr,
11019                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11020                         progname, argv[0], mirror_id, fname);
11021                 goto close_fd;
11022         }
11023
11024         /* open output file - O_EXCL ensures output is not the same as input */
11025         if (outfile) {
11026                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
11027                 if (outfd < 0) {
11028                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
11029                                 progname, argv[0], outfile, strerror(errno));
11030                         rc = -errno;
11031                         goto close_fd;
11032                 }
11033         } else {
11034                 outfd = STDOUT_FILENO;
11035         }
11036
11037         /* allocate buffer */
11038         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
11039         if (rc) {
11040                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
11041                                 progname, argv[0], rc);
11042                 goto close_outfd;
11043         }
11044
11045         pos = 0;
11046         while (1) {
11047                 ssize_t bytes_read;
11048                 ssize_t written = 0;
11049
11050                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
11051                 if (bytes_read < 0) {
11052                         rc = bytes_read;
11053                         fprintf(stderr,
11054                                 "%s %s: fail to read data from mirror %u: %s\n",
11055                                 progname, argv[0], mirror_id, strerror(-rc));
11056                         goto free_buf;
11057                 }
11058
11059                 /* EOF reached */
11060                 if (bytes_read == 0)
11061                         break;
11062
11063                 while (written < bytes_read) {
11064                         ssize_t written2;
11065
11066                         written2 = write(outfd, buf + written,
11067                                          bytes_read - written);
11068                         if (written2 < 0) {
11069                                 fprintf(stderr,
11070                                         "%s %s: fail to write %s: %s\n",
11071                                         progname, argv[0], outfile ? : "STDOUT",
11072                                         strerror(errno));
11073                                 rc = -errno;
11074                                 goto free_buf;
11075                         }
11076                         written += written2;
11077                 }
11078
11079                 if (written != bytes_read) {
11080                         fprintf(stderr,
11081                 "%s %s: written %ld bytes does not match with %ld read.\n",
11082                                 progname, argv[0], written, bytes_read);
11083                         rc = -EIO;
11084                         goto free_buf;
11085                 }
11086
11087                 pos += bytes_read;
11088         }
11089
11090         fsync(outfd);
11091         rc = 0;
11092
11093 free_buf:
11094         free(buf);
11095 close_outfd:
11096         if (outfile)
11097                 close(outfd);
11098 close_fd:
11099         close(fd);
11100
11101         return rc;
11102 }
11103
11104 static inline int lfs_mirror_write(int argc, char **argv)
11105 {
11106         int rc = CMD_HELP;
11107         __u16 mirror_id = 0;
11108         const char *inputfile = NULL;
11109         char *fname;
11110         int fd = 0;
11111         int inputfd;
11112         int c;
11113         void *buf;
11114         const size_t buflen = 4 << 20;
11115         off_t pos;
11116         size_t page_size = sysconf(_SC_PAGESIZE);
11117         struct ll_ioc_lease_id ioc;
11118         struct option long_opts[] = {
11119         { .val = 'h',   .name = "help",         .has_arg = no_argument },
11120         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
11121         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
11122         { .name = NULL } };
11123
11124         while ((c = getopt_long(argc, argv, "hi:N:", long_opts, NULL)) >= 0) {
11125                 char *end;
11126
11127                 switch (c) {
11128                 case 'N': {
11129                         unsigned long int id;
11130
11131                         errno = 0;
11132                         id = strtoul(optarg, &end, 0);
11133                         if (errno != 0 || *end != '\0' || id == 0 ||
11134                             id > UINT16_MAX) {
11135                                 fprintf(stderr,
11136                                         "%s %s: invalid mirror ID '%s'\n",
11137                                         progname, argv[0], optarg);
11138                                 return rc;
11139                         }
11140
11141                         mirror_id = (__u16)id;
11142                         break;
11143                 }
11144                 case 'i':
11145                         inputfile = optarg;
11146                         break;
11147                 default:
11148                         fprintf(stderr, "%s: unrecognized option '%s'\n",
11149                                 progname, argv[optind - 1]);
11150                         fallthrough;
11151                 case 'h':
11152                         return CMD_HELP;
11153                 }
11154         }
11155
11156         if (argc == optind) {
11157                 fprintf(stderr, "%s %s: no mirrored file provided\n",
11158                         progname, argv[0]);
11159                 return rc;
11160         } else if (argc > optind + 1) {
11161                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
11162                 return rc;
11163         }
11164
11165         if (mirror_id == 0) {
11166                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
11167                         progname, argv[0]);
11168                 return rc;
11169         }
11170
11171         /* open mirror file */
11172         fname = argv[optind];
11173         fd = open(fname, O_DIRECT | O_WRONLY);
11174         if (fd < 0) {
11175                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11176                         progname, argv[0], fname, strerror(errno));
11177                 return rc;
11178         }
11179
11180         /* verify mirror id */
11181         rc = verify_mirror_id_by_fd(fd, mirror_id);
11182         if (rc) {
11183                 fprintf(stderr,
11184                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11185                         progname, argv[0], mirror_id, fname);
11186                 goto close_fd;
11187         }
11188
11189         /* open input file */
11190         if (inputfile) {
11191                 rc = check_same_file(fd, inputfile);
11192                 if (rc == 0) {
11193                         fprintf(stderr,
11194                         "%s %s: input file cannot be the mirrored file\n",
11195                                 progname, argv[0]);
11196                         goto close_fd;
11197                 }
11198                 if (rc < 0)
11199                         goto close_fd;
11200
11201                 inputfd = open(inputfile, O_RDONLY, 0644);
11202                 if (inputfd < 0) {
11203                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
11204                                 progname, argv[0], inputfile, strerror(errno));
11205                         rc = -errno;
11206                         goto close_fd;
11207                 }
11208         } else {
11209                 inputfd = STDIN_FILENO;
11210         }
11211
11212         /* allocate buffer */
11213         rc = posix_memalign(&buf, page_size, buflen);
11214         if (rc) {
11215                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
11216                         progname, argv[0], rc);
11217                 goto close_inputfd;
11218         }
11219
11220         /* prepare target mirror components instantiation */
11221         ioc.lil_mode = LL_LEASE_WRLCK;
11222         ioc.lil_flags = LL_LEASE_RESYNC;
11223         ioc.lil_mirror_id = mirror_id;
11224         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
11225         if (rc < 0) {
11226                 fprintf(stderr,
11227                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
11228                         progname, argv[0], fname, strerror(errno));
11229                 goto free_buf;
11230         }
11231
11232         pos = 0;
11233         while (1) {
11234                 ssize_t bytes_read;
11235                 ssize_t written;
11236                 size_t to_write;
11237
11238                 rc = llapi_lease_check(fd);
11239                 if (rc != LL_LEASE_WRLCK) {
11240                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
11241                                 progname, argv[0], fname);
11242                         goto free_buf;
11243                 }
11244
11245                 bytes_read = read(inputfd, buf, buflen);
11246                 if (bytes_read < 0) {
11247                         rc = bytes_read;
11248                         fprintf(stderr,
11249                                 "%s %s: fail to read data from '%s': %s\n",
11250                                 progname, argv[0], inputfile ? : "STDIN",
11251                                 strerror(errno));
11252                         rc = -errno;
11253                         goto free_buf;
11254                 }
11255
11256                 /* EOF reached */
11257                 if (bytes_read == 0)
11258                         break;
11259
11260                 /* round up to page align to make direct IO happy. */
11261                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
11262
11263                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
11264                                              pos);
11265                 if (written < 0) {
11266                         rc = written;
11267                         fprintf(stderr,
11268                               "%s %s: fail to write to mirror %u: %s\n",
11269                                 progname, argv[0], mirror_id,
11270                                 strerror(-rc));
11271                         goto free_buf;
11272                 }
11273
11274                 pos += bytes_read;
11275         }
11276
11277         if (pos & (page_size - 1)) {
11278                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
11279                 if (rc < 0)
11280                         goto free_buf;
11281         }
11282
11283         ioc.lil_mode = LL_LEASE_UNLCK;
11284         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
11285         ioc.lil_count = 0;
11286         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
11287         if (rc <= 0) {
11288                 if (rc == 0)
11289                         rc = -EBUSY;
11290                 fprintf(stderr,
11291                         "%s %s: release lease lock of '%s' failed: %s\n",
11292                         progname, argv[0], fname, strerror(errno));
11293                 goto free_buf;
11294         }
11295
11296         rc = 0;
11297
11298 free_buf:
11299         free(buf);
11300 close_inputfd:
11301         if (inputfile)
11302                 close(inputfd);
11303 close_fd:
11304         close(fd);
11305
11306         return rc;
11307 }
11308
11309 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
11310 {
11311         struct llapi_layout *layout;
11312         struct collect_ids_data cid = { .cid_ids = ids,
11313                                         .cid_count = 0,
11314                                         .cid_exclude = exclude_id, };
11315         int rc;
11316
11317         layout = llapi_layout_get_by_fd(fd, 0);
11318         if (!layout) {
11319                 fprintf(stderr, "could not get layout\n");
11320                 return -EINVAL;
11321         }
11322
11323         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
11324         if (rc < 0) {
11325                 fprintf(stderr, "failed to iterate layout\n");
11326                 llapi_layout_free(layout);
11327
11328                 return rc;
11329         }
11330         llapi_layout_free(layout);
11331
11332         return cid.cid_count;
11333 }
11334
11335 #ifndef MIRROR_ID_NEG
11336 #define MIRROR_ID_NEG         0x8000
11337 #endif
11338
11339 static inline int lfs_mirror_copy(int argc, char **argv)
11340 {
11341         int rc = CMD_HELP;
11342         __u16 read_mirror_id = 0;
11343         __u16 ids[128] = { 0 };
11344         int count = 0;
11345         struct llapi_layout *layout = NULL;
11346         struct llapi_resync_comp comp_array[1024] = { { 0 } };
11347         int comp_size = 0;
11348         char *fname;
11349         int fd = 0;
11350         int c;
11351         int i;
11352         ssize_t copied;
11353         struct ll_ioc_lease *ioc = NULL;
11354         struct ll_ioc_lease_id *resync_ioc;
11355         struct option long_opts[] = {
11356         { .val = 'h',   .name = "help",         .has_arg = no_argument },
11357         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
11358         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
11359         { .name = NULL } };
11360         char cmd[PATH_MAX];
11361
11362         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11363         progname = cmd;
11364         while ((c = getopt_long(argc, argv, "hi:o:", long_opts, NULL)) >= 0) {
11365                 char *end;
11366
11367                 switch (c) {
11368                 case 'i': {
11369                         unsigned long int id;
11370
11371                         errno = 0;
11372                         id = strtoul(optarg, &end, 0);
11373                         if (errno != 0 || *end != '\0' || id == 0 ||
11374                             id > UINT16_MAX) {
11375                                 fprintf(stderr,
11376                                         "%s: invalid read mirror ID '%s'\n",
11377                                         progname, optarg);
11378                                 return rc;
11379                         }
11380
11381                         read_mirror_id = (__u16)id;
11382                         break;
11383                 }
11384                 case 'o':
11385                         if (!strcmp(optarg, "-1")) {
11386                                 /* specify all other mirrors */
11387                                 ids[0] = (__u16)-1;
11388                                 count = 1;
11389                         } else {
11390                                 count = parse_mirror_ids((__u16 *)ids,
11391                                                          ARRAY_SIZE(ids),
11392                                                          optarg);
11393                                 if (count < 0)
11394                                         return rc;
11395                         }
11396                         break;
11397                 default:
11398                         fprintf(stderr, "%s: unrecognized option '%s'\n",
11399                                 progname, argv[optind - 1]);
11400                         fallthrough;
11401                 case 'h':
11402                         return CMD_HELP;
11403                 }
11404         }
11405
11406         if (argc == optind) {
11407                 fprintf(stderr, "%s %s: no mirrored file provided\n",
11408                         progname, argv[0]);
11409                 return rc;
11410         } else if (argc > optind + 1) {
11411                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
11412                 return rc;
11413         }
11414
11415         if (read_mirror_id == 0) {
11416                 fprintf(stderr,
11417                         "%s %s: no valid read mirror ID %d is provided\n",
11418                         progname, argv[0], read_mirror_id);
11419                 return rc;
11420         }
11421
11422         if (count == 0) {
11423                 fprintf(stderr,
11424                         "%s %s: no write mirror ID is provided\n",
11425                         progname, argv[0]);
11426                 return rc;
11427         }
11428
11429         for (i = 0; i < count; i++) {
11430                 if (read_mirror_id == ids[i]) {
11431                         fprintf(stderr,
11432                         "%s %s: read and write mirror ID cannot be the same\n",
11433                                 progname, argv[0]);
11434                         return rc;
11435                 }
11436         }
11437
11438         /* open mirror file */
11439         fname = argv[optind];
11440
11441         fd = open(fname, O_DIRECT | O_RDWR);
11442         if (fd < 0) {
11443                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
11444                         progname, argv[0], fname, strerror(errno));
11445                 return rc;
11446         }
11447
11448         /* write to all other mirrors */
11449         if (ids[0] == (__u16)-1) {
11450                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
11451                 if (count <= 0) {
11452                         rc = count;
11453                         fprintf(stderr,
11454                         "%s %s: failed to get other mirror ids in '%s': %d\n",
11455                                 progname, argv[0], fname, rc);
11456                         goto close_fd;
11457                 }
11458         }
11459
11460         /* verify mirror id */
11461         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
11462         if (rc) {
11463                 fprintf(stderr,
11464                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11465                         progname, argv[0], read_mirror_id, fname);
11466                 goto close_fd;
11467         }
11468
11469         for (i = 0; i < count; i++) {
11470                 rc = verify_mirror_id_by_fd(fd, ids[i]);
11471                 if (rc) {
11472                         fprintf(stderr,
11473                         "%s %s: cannot find mirror with ID %u in '%s'\n",
11474                                 progname, argv[0], ids[i], fname);
11475                         goto close_fd;
11476                 }
11477         }
11478
11479         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
11480         if (!ioc) {
11481                 fprintf(stderr,
11482                         "%s %s: cannot alloc comp id array for ioc: %s\n",
11483                         progname, argv[0], strerror(errno));
11484                 rc = -errno;
11485                 goto close_fd;
11486         }
11487
11488         /* get stale component info */
11489         layout = llapi_layout_get_by_fd(fd, 0);
11490         if (!layout) {
11491                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
11492                         progname, argv[0], fname, strerror(errno));
11493                 rc = -errno;
11494                 goto free_ioc;
11495         }
11496         comp_size = llapi_mirror_find_stale(layout, comp_array,
11497                                             ARRAY_SIZE(comp_array),
11498                                             ids, count);
11499         llapi_layout_free(layout);
11500         if (comp_size < 0) {
11501                 rc = comp_size;
11502                 goto free_ioc;
11503         }
11504
11505         /* prepare target mirror components instantiation */
11506         resync_ioc = (struct ll_ioc_lease_id *)ioc;
11507         resync_ioc->lil_mode = LL_LEASE_WRLCK;
11508         resync_ioc->lil_flags = LL_LEASE_RESYNC;
11509         if (count == 1)
11510                 resync_ioc->lil_mirror_id = ids[0];
11511         else
11512                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
11513         rc = llapi_lease_set(fd, ioc);
11514         if (rc < 0) {
11515                 fprintf(stderr,
11516                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
11517                         progname, argv[0], fname, strerror(errno));
11518                 goto free_ioc;
11519         }
11520
11521         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
11522         if (copied < 0) {
11523                 rc = copied;
11524                 fprintf(stderr, "%s %s: copy error: %d\n",
11525                         progname, argv[0], rc);
11526                 goto free_ioc;
11527         }
11528
11529         fprintf(stdout, "mirror copied successfully: ");
11530         for (i = 0; i < copied; i++)
11531                 fprintf(stdout, "%d ", ids[i]);
11532         fprintf(stdout, "\n");
11533
11534         ioc->lil_mode = LL_LEASE_UNLCK;
11535         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
11536         ioc->lil_count = 0;
11537         for (i = 0; i < comp_size; i++) {
11538                 int j;
11539
11540                 for (j = 0; j < copied; j++) {
11541                         if (comp_array[i].lrc_mirror_id != ids[j])
11542                                 continue;
11543
11544                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
11545                         ioc->lil_count++;
11546                 }
11547         }
11548         rc = llapi_lease_set(fd, ioc);
11549         if (rc <= 0) {
11550                 if (rc == 0)
11551                         rc = -EBUSY;
11552                 fprintf(stderr,
11553                         "%s %s: release lease lock of '%s' failed: %s\n",
11554                         progname, argv[0], fname, strerror(errno));
11555                 goto free_ioc;
11556         }
11557
11558         rc = 0;
11559
11560 free_ioc:
11561         free(ioc);
11562 close_fd:
11563         close(fd);
11564
11565         return rc;
11566 }
11567
11568 /**
11569  * struct verify_chunk - Mirror chunk to be verified.
11570  * @chunk:        [start, end) of the chunk.
11571  * @mirror_count: Number of mirror ids in @mirror_id array.
11572  * @mirror_id:    Array of valid mirror ids that cover the chunk.
11573  */
11574 struct verify_chunk {
11575         struct lu_extent chunk;
11576         unsigned int mirror_count;
11577         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
11578 };
11579
11580 /**
11581  * print_chunks() - Print chunk information.
11582  * @fname:       Mirrored file name.
11583  * @chunks:      Array of chunks.
11584  * @chunk_count: Number of chunks in @chunks array.
11585  *
11586  * This function prints [start, end) of each chunk in @chunks
11587  * for mirrored file @fname, and also prints the valid mirror ids
11588  * that cover the chunk.
11589  *
11590  * Return: void.
11591  */
11592 static inline
11593 void print_chunks(const char *fname, struct verify_chunk *chunks,
11594                   int chunk_count)
11595 {
11596         int i;
11597         int j;
11598
11599         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
11600         for (i = 0; i < chunk_count; i++) {
11601                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
11602
11603                 if (chunks[i].mirror_count == 0)
11604                         fprintf(stdout, "\t[");
11605                 else {
11606                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
11607                         for (j = 1; j < chunks[i].mirror_count; j++)
11608                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
11609                 }
11610                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
11611         }
11612         fprintf(stdout, "\n");
11613 }
11614
11615 /**
11616  * print_checksums() - Print CRC-32 checksum values.
11617  * @chunk: A chunk and its corresponding valid mirror ids.
11618  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
11619  *
11620  * This function prints CRC-32 checksum values on @chunk for
11621  * each valid mirror that covers it.
11622  *
11623  * Return: void.
11624  */
11625 static inline
11626 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
11627 {
11628         int i;
11629
11630         fprintf(stdout,
11631                 "CRC-32 checksum value for chunk "DEXT":\n",
11632                 PEXT(&chunk->chunk));
11633         for (i = 0; i < chunk->mirror_count; i++)
11634                 fprintf(stdout, "Mirror %u:\t%#lx\n",
11635                         chunk->mirror_id[i], crc[i]);
11636         fprintf(stdout, "\n");
11637 }
11638
11639 /**
11640  * filter_mirror_id() - Filter specified mirror ids.
11641  * @chunks:      Array of chunks.
11642  * @chunk_count: Number of chunks in @chunks array.
11643  * @mirror_ids:  Specified mirror ids to be verified.
11644  * @ids_nr:      Number of specified mirror ids.
11645  *
11646  * This function scans valid mirror ids that cover each chunk in @chunks
11647  * and filters specified mirror ids.
11648  *
11649  * Return: void.
11650  */
11651 static inline
11652 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
11653                       __u16 *mirror_ids, int ids_nr)
11654 {
11655         int i;
11656         int j;
11657         int k;
11658         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11659         unsigned int valid_count = 0;
11660
11661         for (i = 0; i < chunk_count; i++) {
11662                 if (chunks[i].mirror_count == 0)
11663                         continue;
11664
11665                 valid_count = 0;
11666                 for (j = 0; j < ids_nr; j++) {
11667                         for (k = 0; k < chunks[i].mirror_count; k++) {
11668                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
11669                                         valid_id[valid_count] = mirror_ids[j];
11670                                         valid_count++;
11671                                         break;
11672                                 }
11673                         }
11674                 }
11675
11676                 memcpy(chunks[i].mirror_id, valid_id,
11677                        sizeof(__u16) * valid_count);
11678                 chunks[i].mirror_count = valid_count;
11679         }
11680 }
11681
11682 /**
11683  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
11684  * @layout:      Mirror component list.
11685  * @chunks:      Array of chunks.
11686  * @chunks_size: Array size of @chunks.
11687  *
11688  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
11689  * to find out chunk segments and store them in @chunks array.
11690  *
11691  * The @mirror_id array in each element of @chunks will store the valid
11692  * mirror ids that cover the chunk. If a mirror component covering the
11693  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
11694  * will not be stored into the @mirror_id array, and the chunk for that
11695  * mirror will not be verified.
11696  *
11697  * The @mirror_count in each element of @chunks will store the number of
11698  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
11699  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
11700  * indicates the chunk is valid in only one mirror. In both cases, the
11701  * chunk will not be verified.
11702  *
11703  * Here is an example:
11704  *
11705  *  0      1M     2M     3M     4M           EOF
11706  *  +------+-------------+--------------------+
11707  *  |      |             |      S             |       mirror1
11708  *  +------+------+------+------+-------------+
11709  *  |             |   S  |   S  |             |       mirror2
11710  *  +-------------+------+------+-------------+
11711  *
11712  * prepared @chunks array will contain 5 elements:
11713  * (([0, 1M), [1, 2], 2),
11714  *  ([1M, 2M), [1, 2], 2),
11715  *  ([2M, 3M), [1], 1),
11716  *  ([3M, 4M], [], 0),
11717  *  ([4M, EOF), [2], 1))
11718  *
11719  * Return: the actual array size of @chunks on success
11720  *         or a negative error code on failure.
11721  */
11722 static inline
11723 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
11724                              struct verify_chunk *chunks,
11725                              size_t chunks_size)
11726 {
11727         uint64_t start;
11728         uint64_t end;
11729         uint32_t mirror_id;
11730         uint32_t flags;
11731         int idx = 0;
11732         int i = 0;
11733         int rc = 0;
11734
11735         memset(chunks, 0, sizeof(*chunks) * chunks_size);
11736
11737         while (1) {
11738                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
11739                 if (rc < 0) {
11740                         fprintf(stderr,
11741                                 "%s: move to the first layout component: %s.\n",
11742                                 progname, strerror(errno));
11743                         goto error;
11744                 }
11745
11746                 i = 0;
11747                 rc = 0;
11748                 chunks[idx].chunk.e_end = LUSTRE_EOF;
11749                 while (rc == 0) {
11750                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
11751                         if (rc < 0) {
11752                                 fprintf(stderr,
11753                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
11754                                         progname, strerror(errno));
11755                                 goto error;
11756                         }
11757
11758                         if (start > chunks[idx].chunk.e_start ||
11759                             end <= chunks[idx].chunk.e_start)
11760                                 goto next;
11761
11762                         if (end < chunks[idx].chunk.e_end)
11763                                 chunks[idx].chunk.e_end = end;
11764
11765                         rc = llapi_layout_comp_flags_get(layout, &flags);
11766                         if (rc < 0) {
11767                                 fprintf(stderr,
11768                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
11769                                         progname, strerror(errno));
11770                                 goto error;
11771                         }
11772
11773                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
11774                                 goto next;
11775
11776                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
11777                         if (rc < 0) {
11778                                 fprintf(stderr,
11779                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
11780                                         progname, strerror(errno));
11781                                 goto error;
11782                         }
11783
11784                         chunks[idx].mirror_id[i] = mirror_id;
11785                         i++;
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
11794 next:
11795                         rc = llapi_layout_comp_use(layout,
11796                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
11797                         if (rc < 0) {
11798                                 fprintf(stderr,
11799                                         "%s: move to the next layout component: %s.\n",
11800                                         progname, strerror(errno));
11801                                 goto error;
11802                         }
11803                 } /* loop through all components */
11804
11805                 chunks[idx].mirror_count = i;
11806
11807                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
11808                         break;
11809
11810                 idx++;
11811                 if (idx >= chunks_size) {
11812                         fprintf(stderr, "%s: chunks array is too small.\n",
11813                                 progname);
11814                         rc = -EINVAL;
11815                         goto error;
11816                 }
11817
11818                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
11819         }
11820
11821 error:
11822         return rc < 0 ? rc : idx + 1;
11823 }
11824
11825 /**
11826  * lfs_mirror_verify_chunk() - Verify a chunk.
11827  * @fd:        File descriptor of the mirrored file.
11828  * @file_size: Size of the mirrored file.
11829  * @chunk:     A chunk and its corresponding valid mirror ids.
11830  * @verbose:   Verbose mode.
11831  *
11832  * This function verifies a @chunk contains exactly the same data
11833  * ammong the mirrors that cover it.
11834  *
11835  * If @verbose is specified, then the function will print where the
11836  * differences are if the data do not match. Otherwise, it will
11837  * just return an error in that case.
11838  *
11839  * Return: 0 on success or a negative error code on failure.
11840  */
11841 static inline
11842 int lfs_mirror_verify_chunk(int fd, size_t file_size,
11843                             struct verify_chunk *chunk, int verbose)
11844 {
11845         const size_t buflen = 4 * 1024 * 1024; /* 4M */
11846         void *buf;
11847         size_t page_size = sysconf(_SC_PAGESIZE);
11848         ssize_t bytes_read;
11849         ssize_t bytes_done;
11850         size_t count;
11851         off_t pos;
11852         unsigned long crc;
11853         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
11854         int i;
11855         int rc = 0;
11856
11857         if (file_size == 0)
11858                 return 0;
11859
11860         rc = posix_memalign(&buf, page_size, buflen);
11861         if (rc) /* error code is returned directly */
11862                 return -rc;
11863
11864         if (verbose > 1) {
11865                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11866                         PEXT(&chunk->chunk));
11867                 for (i = 0; i < chunk->mirror_count; i++)
11868                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11869                 fprintf(stdout, "\n");
11870         }
11871
11872         bytes_done = 0;
11873         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
11874         pos = chunk->chunk.e_start;
11875         while (bytes_done < count) {
11876                 /* compute initial CRC-32 checksum */
11877                 crc = crc32(0L, Z_NULL, 0);
11878                 memset(crc_array, 0, sizeof(crc_array));
11879
11880                 bytes_read = 0;
11881                 for (i = 0; i < chunk->mirror_count; i++) {
11882                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
11883                                                        buf, buflen, pos);
11884                         if (bytes_read < 0) {
11885                                 rc = bytes_read;
11886                                 fprintf(stderr,
11887                                         "%s: failed to read data from mirror %u: %s.\n",
11888                                         progname, chunk->mirror_id[i],
11889                                         strerror(-rc));
11890                                 goto error;
11891                         }
11892
11893                         /* compute new CRC-32 checksum */
11894                         crc_array[i] = crc32(crc, buf, bytes_read);
11895                 }
11896
11897                 if (verbose)
11898                         print_checksums(chunk, crc_array);
11899
11900                 /* compare CRC-32 checksum values */
11901                 for (i = 1; i < chunk->mirror_count; i++) {
11902                         if (crc_array[i] != crc_array[0]) {
11903                                 rc = -EINVAL;
11904
11905                                 fprintf(stderr,
11906                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
11907                                         progname, PEXT(&chunk->chunk),
11908                                         chunk->mirror_id[0],
11909                                         chunk->mirror_id[i]);
11910                         }
11911                 }
11912
11913                 pos += bytes_read;
11914                 bytes_done += bytes_read;
11915         }
11916
11917         if (verbose > 1 && rc == 0) {
11918                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
11919                         PEXT(&chunk->chunk));
11920                 for (i = 0; i < chunk->mirror_count; i++)
11921                         fprintf(stdout, " %u", chunk->mirror_id[i]);
11922                 fprintf(stdout, " PASS\n\n");
11923         }
11924
11925 error:
11926         free(buf);
11927         return rc;
11928 }
11929
11930 /**
11931  * lfs_mirror_verify_file() - Verify a mirrored file.
11932  * @fname:      Mirrored file name.
11933  * @mirror_ids: Specified mirror ids to be verified.
11934  * @ids_nr:     Number of specified mirror ids.
11935  * @verbose:    Verbose mode.
11936  *
11937  * This function verifies that each SYNC mirror of a mirrored file
11938  * specified by @fname contains exactly the same data.
11939  *
11940  * If @mirror_ids is specified, then the function will verify the
11941  * mirrors specified by @mirror_ids contain exactly the same data.
11942  *
11943  * If @verbose is specified, then the function will print where the
11944  * differences are if the data do not match. Otherwise, it will
11945  * just return an error in that case.
11946  *
11947  * Return: 0 on success or a negative error code on failure.
11948  */
11949 static inline
11950 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
11951                            int verbose)
11952 {
11953         struct verify_chunk chunks_array[1024] = { };
11954         struct llapi_layout *layout = NULL;
11955         struct stat stbuf;
11956         uint32_t flr_state;
11957         int fd;
11958         int chunk_count = 0;
11959         int idx = 0;
11960         int rc = 0;
11961         int rc1 = 0;
11962         int rc2 = 0;
11963
11964         if (stat(fname, &stbuf) < 0) {
11965                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
11966                         progname, fname, strerror(errno));
11967                 rc = -errno;
11968                 goto error;
11969         }
11970
11971         if (!S_ISREG(stbuf.st_mode)) {
11972                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
11973                         progname, fname);
11974                 rc = -EINVAL;
11975                 goto error;
11976         }
11977
11978         if (stbuf.st_size == 0) {
11979                 if (verbose)
11980                         fprintf(stdout, "%s: '%s' file size is 0.\n",
11981                                 progname, fname);
11982                 rc = 0;
11983                 goto error;
11984         }
11985
11986         /* Allow mirror verify even without the key on encrypted files */
11987         fd = open(fname, O_DIRECT | O_RDONLY | O_FILE_ENC);
11988         if (fd < 0) {
11989                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
11990                         progname, fname, strerror(errno));
11991                 rc = -errno;
11992                 goto error;
11993         }
11994
11995         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
11996         if (rc < 0) {
11997                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
11998                         progname, fname, strerror(errno));
11999                 goto close_fd;
12000         }
12001
12002         layout = llapi_layout_get_by_fd(fd, 0);
12003         if (!layout) {
12004                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
12005                         progname, fname, strerror(errno));
12006                 rc = -errno;
12007                 llapi_lease_release(fd);
12008                 goto close_fd;
12009         }
12010
12011         rc = llapi_layout_flags_get(layout, &flr_state);
12012         if (rc < 0) {
12013                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
12014                         progname, fname, strerror(errno));
12015                 rc = -errno;
12016                 goto free_layout;
12017         }
12018
12019         flr_state &= LCM_FL_FLR_MASK;
12020         switch (flr_state) {
12021         case LCM_FL_NONE:
12022                 rc = -EINVAL;
12023                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
12024                         progname, fname, llapi_layout_flags_string(flr_state));
12025                 goto free_layout;
12026         default:
12027                 break;
12028         }
12029
12030         /* find out mirror chunks to be verified */
12031         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
12032                                                ARRAY_SIZE(chunks_array));
12033         if (chunk_count < 0) {
12034                 rc = chunk_count;
12035                 goto free_layout;
12036         }
12037
12038         if (ids_nr > 0)
12039                 /* filter specified mirror ids */
12040                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
12041
12042         if (verbose > 2)
12043                 print_chunks(fname, chunks_array, chunk_count);
12044
12045         for (idx = 0; idx < chunk_count; idx++) {
12046                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
12047                         if (verbose)
12048                                 fprintf(stdout,
12049                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
12050                                         progname, fname,
12051                                         PEXT(&chunks_array[idx].chunk),
12052                                         (unsigned long long)stbuf.st_size);
12053                         break;
12054                 }
12055
12056                 if (chunks_array[idx].mirror_count == 0) {
12057                         fprintf(stderr,
12058                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
12059                                 progname, fname,
12060                                 PEXT(&chunks_array[idx].chunk));
12061                         if (verbose) {
12062                                 fprintf(stderr, "skipped\n");
12063                                 continue;
12064                         }
12065                         rc = -EINVAL;
12066                         fprintf(stderr, "failed\n");
12067                         goto free_layout;
12068                 }
12069
12070                 if (chunks_array[idx].mirror_count == 1) {
12071                         if (verbose)
12072                                 fprintf(stdout,
12073                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
12074                                         progname, fname,
12075                                         PEXT(&chunks_array[idx].chunk),
12076                                         chunks_array[idx].mirror_id[0]);
12077                         continue;
12078                 }
12079
12080                 rc = llapi_lease_check(fd);
12081                 if (rc != LL_LEASE_RDLCK) {
12082                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
12083                                 progname, fname);
12084                         goto free_layout;
12085                 }
12086
12087                 /* verify one chunk */
12088                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
12089                                               &chunks_array[idx], verbose);
12090                 if (rc1 < 0) {
12091                         rc2 = rc1;
12092                         if (!verbose) {
12093                                 rc = rc1;
12094                                 goto free_layout;
12095                         }
12096                 }
12097         }
12098
12099         if (rc2 < 0)
12100                 rc = rc2;
12101
12102 free_layout:
12103         llapi_layout_free(layout);
12104         llapi_lease_release(fd);
12105 close_fd:
12106         close(fd);
12107 error:
12108         return rc;
12109 }
12110
12111 /**
12112  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
12113  * @argc: The count of lfs mirror verify command line arguments.
12114  * @argv: Array of strings for lfs mirror verify command line arguments.
12115  *
12116  * This function parses lfs mirror verify command and verifies the
12117  * specified mirrored file(s).
12118  *
12119  * Return: 0 on success or a negative error code on failure.
12120  */
12121 static inline int lfs_mirror_verify(int argc, char **argv)
12122 {
12123         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
12124         int ids_nr = 0;
12125         int c;
12126         int verbose = 0;
12127         int rc = 0;
12128         int rc1 = 0;
12129         char cmd[PATH_MAX];
12130
12131         struct option long_opts[] = {
12132         { .val = 'h',   .name = "help",         .has_arg = no_argument },
12133         { .val = 'o',   .name = "only",         .has_arg = required_argument },
12134         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
12135         { .name = NULL } };
12136
12137         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12138         progname = cmd;
12139         while ((c = getopt_long(argc, argv, "ho:v", long_opts, NULL)) >= 0) {
12140                 switch (c) {
12141                 case 'o':
12142                         rc = parse_mirror_ids(mirror_ids,
12143                                               ARRAY_SIZE(mirror_ids),
12144                                               optarg);
12145                         if (rc < 0) {
12146                                 fprintf(stderr,
12147                                         "%s: bad mirror ids '%s'.\n",
12148                                         progname, optarg);
12149                                 goto error;
12150                         }
12151                         ids_nr = rc;
12152                         if (ids_nr < 2) {
12153                                 fprintf(stderr,
12154                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
12155                                         progname);
12156                                 rc = CMD_HELP;
12157                                 goto error;
12158                         }
12159                         break;
12160                 case 'v':
12161                         verbose++;
12162                         break;
12163                 default:
12164                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12165                                 progname, argv[optind - 1]);
12166                         fallthrough;
12167                 case 'h':
12168                         rc = CMD_HELP;
12169                         goto error;
12170                 }
12171         }
12172
12173         if (argc == optind) {
12174                 fprintf(stderr, "%s: no file name given.\n", progname);
12175                 rc = CMD_HELP;
12176                 goto error;
12177         }
12178
12179         if (ids_nr > 0 && argc > optind + 1) {
12180                 fprintf(stderr,
12181                         "%s: '--only' cannot be used upon multiple files.\n",
12182                         progname);
12183                 rc = CMD_HELP;
12184                 goto error;
12185         }
12186
12187         if (ids_nr > 0) {
12188                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
12189                 if (rc < 0)
12190                         goto error;
12191         }
12192
12193         rc = 0;
12194         for (; optind < argc; optind++) {
12195                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
12196                                              verbose);
12197                 if (rc1 < 0)
12198                         rc = rc1;
12199         }
12200 error:
12201         return rc;
12202 }
12203
12204 /**
12205  * lfs_mirror() - Parse and execute lfs mirror commands.
12206  * @argc: The count of lfs mirror command line arguments.
12207  * @argv: Array of strings for lfs mirror command line arguments.
12208  *
12209  * This function parses lfs mirror commands and performs the
12210  * corresponding functions specified in mirror_cmdlist[].
12211  *
12212  * Return: 0 on success or an error code on failure.
12213  */
12214 static int lfs_mirror(int argc, char **argv)
12215 {
12216         char cmd[PATH_MAX];
12217         int rc = 0;
12218
12219         setlinebuf(stdout);
12220
12221         Parser_init("lfs-mirror > ", mirror_cmdlist);
12222
12223         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12224         progname = cmd;
12225         program_invocation_short_name = cmd;
12226         if (argc > 1)
12227                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
12228         else
12229                 rc = Parser_commands();
12230
12231         return rc < 0 ? -rc : rc;
12232 }
12233
12234 static void lustre_som_swab(struct lustre_som_attrs *attrs)
12235 {
12236 #if __BYTE_ORDER == __BIG_ENDIAN
12237         __swab16s(&attrs->lsa_valid);
12238         __swab64s(&attrs->lsa_size);
12239         __swab64s(&attrs->lsa_blocks);
12240 #endif
12241 }
12242
12243 enum lfs_som_type {
12244         LFS_SOM_SIZE = 0x1,
12245         LFS_SOM_BLOCKS = 0x2,
12246         LFS_SOM_FLAGS = 0x4,
12247         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
12248                            LFS_SOM_FLAGS,
12249 };
12250
12251 static int lfs_getsom(int argc, char **argv)
12252 {
12253         const char *path;
12254         struct lustre_som_attrs *attrs;
12255         char buf[sizeof(*attrs) + 64];
12256         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
12257         int rc = 0, c;
12258
12259         while ((c = getopt(argc, argv, "bfhs")) != -1) {
12260                 switch (c) {
12261                 case 'b':
12262                         type = LFS_SOM_BLOCKS;
12263                         break;
12264                 case 'f':
12265                         type = LFS_SOM_FLAGS;
12266                         break;
12267                 case 's':
12268                         type = LFS_SOM_SIZE;
12269                         break;
12270                 default:
12271                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12272                                 progname, argv[optind - 1]);
12273                         fallthrough;
12274                 case 'h':
12275                         return CMD_HELP;
12276                 }
12277         }
12278
12279         argc -= optind;
12280         argv += optind;
12281
12282         if (argc != 1) {
12283                 fprintf(stderr, "%s: %s\n",
12284                         progname, argc == 0 ? "miss file target" :
12285                         "input more than 2 files");
12286                 return CMD_HELP;
12287         }
12288
12289         path = argv[0];
12290         attrs = (void *)buf;
12291         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
12292         if (rc < 0) {
12293                 rc = -errno;
12294                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
12295                         argv[0], strerror(errno), errno);
12296                 return rc;
12297         }
12298
12299         lustre_som_swab(attrs);
12300
12301         switch (type) {
12302         case LFS_SOM_ATTR_ALL:
12303                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
12304                        path, (unsigned long long)attrs->lsa_size,
12305                        (unsigned long long)attrs->lsa_blocks,
12306                        attrs->lsa_valid);
12307                 break;
12308         case LFS_SOM_SIZE:
12309                 printf("%llu\n", (unsigned long long)attrs->lsa_size);
12310                 break;
12311         case LFS_SOM_BLOCKS:
12312                 printf("%llu\n", (unsigned long long)attrs->lsa_blocks);
12313                 break;
12314         case LFS_SOM_FLAGS:
12315                 printf("%x\n", attrs->lsa_valid);
12316                 break;
12317         default:
12318                 fprintf(stderr, "%s: unknown option\n", progname);
12319                 return CMD_HELP;
12320         }
12321
12322         return 0;
12323 }
12324
12325 /**
12326  * lfs_mirror_list_commands() - List lfs mirror commands.
12327  * @argc: The count of command line arguments.
12328  * @argv: Array of strings for command line arguments.
12329  *
12330  * This function lists lfs mirror commands defined in mirror_cmdlist[].
12331  *
12332  * Return: 0 on success.
12333  */
12334 static int lfs_mirror_list_commands(int argc, char **argv)
12335 {
12336         char buffer[81] = "";
12337
12338         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
12339                              NULL, 0, 4);
12340
12341         return 0;
12342 }
12343
12344 static int lfs_pcc_attach(int argc, char **argv)
12345 {
12346         struct option long_opts[] = {
12347         { .val = 'h',   .name = "help", .has_arg = no_argument },
12348         { .val = 'i',   .name = "id",   .has_arg = required_argument },
12349         { .name = NULL } };
12350         int c;
12351         int rc = 0;
12352         __u32 archive_id = 0;
12353         const char *path;
12354         char *end;
12355         char fullpath[PATH_MAX];
12356         enum lu_pcc_type type = LU_PCC_READWRITE;
12357
12358         optind = 0;
12359         while ((c = getopt_long(argc, argv, "hi:",
12360                                 long_opts, NULL)) != -1) {
12361                 switch (c) {
12362                 case 'i':
12363                         errno = 0;
12364                         archive_id = strtoul(optarg, &end, 0);
12365                         if (errno != 0 || *end != '\0' ||
12366                             archive_id == 0 || archive_id > UINT32_MAX) {
12367                                 fprintf(stderr,
12368                                         "error: %s: bad archive ID '%s'\n",
12369                                         progname, optarg);
12370                                 return CMD_HELP;
12371                         }
12372                         break;
12373                 default:
12374                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12375                                 progname, argv[optind - 1]);
12376                         fallthrough;
12377                 case 'h':
12378                         return CMD_HELP;
12379                 }
12380         }
12381
12382         if (archive_id == 0) {
12383                 fprintf(stderr, "%s: must specify attach ID\n", argv[0]);
12384                 return CMD_HELP;
12385         }
12386
12387         if (argc <= optind) {
12388                 fprintf(stderr, "%s: must specify one or more file names\n",
12389                         argv[0]);
12390                 return CMD_HELP;
12391         }
12392
12393         while (optind < argc) {
12394                 int rc2;
12395
12396                 path = argv[optind++];
12397                 if (!realpath(path, fullpath)) {
12398                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12399                                 argv[0], path, strerror(errno));
12400                         if (rc == 0)
12401                                 rc = -EINVAL;
12402                         continue;
12403                 }
12404
12405                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
12406                 if (rc2 < 0) {
12407                         fprintf(stderr,
12408                                 "%s: cannot attach '%s' to PCC with archive ID '%u': %s\n",
12409                                 argv[0], path, archive_id, strerror(-rc2));
12410                         if (rc == 0)
12411                                 rc = rc2;
12412                 }
12413         }
12414         return rc;
12415 }
12416
12417 static int lfs_pcc_attach_fid(int argc, char **argv)
12418 {
12419         struct option long_opts[] = {
12420         { .val = 'h',   .name = "help", .has_arg = no_argument },
12421         { .val = 'i',   .name = "id",   .has_arg = required_argument },
12422         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
12423         { .name = NULL } };
12424         int c;
12425         int rc = 0;
12426         __u32 archive_id = 0;
12427         char *end;
12428         const char *mntpath = NULL;
12429         const char *fidstr;
12430         enum lu_pcc_type type = LU_PCC_READWRITE;
12431
12432         optind = 0;
12433         while ((c = getopt_long(argc, argv, "hi:m:",
12434                                 long_opts, NULL)) != -1) {
12435                 switch (c) {
12436                 case 'i':
12437                         errno = 0;
12438                         archive_id = strtoul(optarg, &end, 0);
12439                         if (errno != 0 || *end != '\0' ||
12440                             archive_id > UINT32_MAX) {
12441                                 fprintf(stderr,
12442                                         "error: %s: bad archive ID '%s'\n",
12443                                         argv[0], optarg);
12444                                 return CMD_HELP;
12445                         }
12446                         break;
12447                 case 'm':
12448                         mntpath = optarg;
12449                         break;
12450                 default:
12451                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12452                                 progname, argv[optind - 1]);
12453                         fallthrough;
12454                 case 'h':
12455                         return CMD_HELP;
12456                 }
12457         }
12458
12459         if (archive_id == 0) {
12460                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
12461                 return CMD_HELP;
12462         }
12463
12464         if (!mntpath) {
12465                 fprintf(stderr, "%s: must specify Lustre mount point\n",
12466                         argv[0]);
12467                 return CMD_HELP;
12468         }
12469
12470         if (argc <= optind) {
12471                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
12472                 return CMD_HELP;
12473         }
12474
12475         while (optind < argc) {
12476                 int rc2;
12477
12478                 fidstr = argv[optind++];
12479
12480                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
12481                                                archive_id, type);
12482                 if (rc2 < 0) {
12483                         fprintf(stderr,
12484                                 "%s: cannot attach '%s' on '%s' to PCC with archive ID '%u': %s\n",
12485                                 argv[0], fidstr, mntpath, archive_id,
12486                                 strerror(rc2));
12487                 }
12488                 if (rc == 0 && rc2 < 0)
12489                         rc = rc2;
12490         }
12491         return rc;
12492 }
12493
12494 static int lfs_pcc_detach(int argc, char **argv)
12495 {
12496         struct option long_opts[] = {
12497         { .val = 'h',   .name = "help", .has_arg = no_argument },
12498         { .val = 'k',   .name = "keep", .has_arg = no_argument },
12499         { .name = NULL } };
12500         int c;
12501         int rc = 0;
12502         const char *path;
12503         char fullpath[PATH_MAX];
12504         __u32 detach_opt = PCC_DETACH_OPT_UNCACHE;
12505
12506         optind = 0;
12507         while ((c = getopt_long(argc, argv, "hk",
12508                                 long_opts, NULL)) != -1) {
12509                 switch (c) {
12510                 case 'k':
12511                         detach_opt = PCC_DETACH_OPT_NONE;
12512                         break;
12513                 default:
12514                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12515                                 progname, argv[optind - 1]);
12516                         fallthrough;
12517                 case 'h':
12518                         return CMD_HELP;
12519                 }
12520         }
12521
12522         while (optind < argc) {
12523                 int rc2;
12524
12525                 path = argv[optind++];
12526                 if (!realpath(path, fullpath)) {
12527                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12528                                 argv[0], path, strerror(errno));
12529                         if (rc == 0)
12530                                 rc = -EINVAL;
12531                         continue;
12532                 }
12533
12534                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
12535                 if (rc2 < 0) {
12536                         rc2 = -errno;
12537                         fprintf(stderr,
12538                                 "%s: cannot detach '%s' from PCC: %s\n",
12539                                 argv[0], path, strerror(errno));
12540                         if (rc == 0)
12541                                 rc = rc2;
12542                 }
12543         }
12544         return rc;
12545 }
12546
12547 static int lfs_pcc_detach_fid(int argc, char **argv)
12548 {
12549         struct option long_opts[] = {
12550         { .val = 'h',   .name = "help", .has_arg = no_argument },
12551         { .val = 'k',   .name = "keep", .has_arg = no_argument },
12552         { .name = NULL } };
12553         int c;
12554         int rc = 0;
12555         const char *fid;
12556         const char *mntpath;
12557         __u32 detach_opt = PCC_DETACH_OPT_UNCACHE;
12558
12559         optind = 0;
12560         while ((c = getopt_long(argc, argv, "hk",
12561                                 long_opts, NULL)) != -1) {
12562                 switch (c) {
12563                 case 'k':
12564                         detach_opt = PCC_DETACH_OPT_NONE;
12565                         break;
12566                 default:
12567                         fprintf(stderr, "%s: unrecognized option '%s'\n",
12568                                 progname, argv[optind - 1]);
12569                         fallthrough;
12570                 case 'h':
12571                         return CMD_HELP;
12572                 }
12573         }
12574
12575         mntpath = argv[optind++];
12576
12577         while (optind < argc) {
12578                 int rc2;
12579
12580                 fid = argv[optind++];
12581
12582                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
12583                 if (rc2 < 0) {
12584                         fprintf(stderr,
12585                                 "%s: cannot detach '%s' on '%s' from PCC: %s\n",
12586                                 argv[0], fid, mntpath, strerror(-rc2));
12587                         if (rc == 0)
12588                                 rc = rc2;
12589                 }
12590         }
12591         return rc;
12592 }
12593
12594 static int lfs_pcc_state(int argc, char **argv)
12595 {
12596         int rc = 0;
12597         const char *path;
12598         char fullpath[PATH_MAX];
12599         struct lu_pcc_state state;
12600
12601         optind = 1;
12602
12603         if (argc <= 1) {
12604                 fprintf(stderr, "%s: must specify one or more file names\n",
12605                         progname);
12606                 return CMD_HELP;
12607         }
12608
12609         while (optind < argc) {
12610                 int rc2;
12611
12612                 path = argv[optind++];
12613                 if (!realpath(path, fullpath)) {
12614                         fprintf(stderr, "%s: could not find path '%s': %s\n",
12615                                 argv[0], path, strerror(errno));
12616                         if (rc == 0)
12617                                 rc = -EINVAL;
12618                         continue;
12619                 }
12620
12621                 rc2 = llapi_pcc_state_get(fullpath, &state);
12622                 if (rc2 < 0) {
12623                         if (rc == 0)
12624                                 rc = rc2;
12625                         fprintf(stderr,
12626                                 "%s: cannot get PCC state of '%s': %s\n",
12627                                 argv[0], path, strerror(-rc2));
12628                         continue;
12629                 }
12630
12631                 printf("file: %s", path);
12632                 printf(", type: %s", pcc_type2string(state.pccs_type));
12633                 if (state.pccs_type == LU_PCC_NONE &&
12634                     state.pccs_open_count == 0) {
12635                         printf("\n");
12636                         continue;
12637                 }
12638
12639                 printf(", PCC file: %s", state.pccs_path);
12640                 printf(", user number: %u", state.pccs_open_count);
12641                 printf(", flags: %x", state.pccs_flags);
12642                 printf("\n");
12643         }
12644         return rc;
12645 }
12646
12647 /**
12648  * lfs_pcc_list_commands() - List lfs pcc commands.
12649  * @argc: The count of command line arguments.
12650  * @argv: Array of strings for command line arguments.
12651  *
12652  * This function lists lfs pcc commands defined in pcc_cmdlist[].
12653  *
12654  * Return: 0 on success.
12655  */
12656 static int lfs_pcc_list_commands(int argc, char **argv)
12657 {
12658         char buffer[81] = "";
12659
12660         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
12661                              NULL, 0, 4);
12662
12663         return 0;
12664 }
12665
12666 /**
12667  * lfs_pcc() - Parse and execute lfs pcc commands.
12668  * @argc: The count of lfs pcc command line arguments.
12669  * @argv: Array of strings for lfs pcc command line arguments.
12670  *
12671  * This function parses lfs pcc commands and performs the
12672  * corresponding functions specified in pcc_cmdlist[].
12673  *
12674  * Return: 0 on success or an error code on failure.
12675  */
12676 static int lfs_pcc(int argc, char **argv)
12677 {
12678         char cmd[PATH_MAX];
12679         int rc = 0;
12680
12681         setlinebuf(stdout);
12682
12683         Parser_init("lfs-pcc > ", pcc_cmdlist);
12684
12685         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
12686         progname = cmd;
12687         program_invocation_short_name = cmd;
12688         if (argc > 1)
12689                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
12690         else
12691                 rc = Parser_commands();
12692
12693         return rc < 0 ? -rc : rc;
12694 }
12695
12696 static int lfs_list_commands(int argc, char **argv)
12697 {
12698         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
12699
12700         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
12701
12702         return 0;
12703 }
12704
12705 int main(int argc, char **argv)
12706 {
12707         int rc;
12708
12709         /* Ensure that liblustreapi constructor has run */
12710         if (!llapi_liblustreapi_initialized())
12711                 fprintf(stderr, "liblustreapi was not properly initialized\n");
12712
12713         setlinebuf(stdout);
12714         opterr = 0;
12715
12716         Parser_init("lfs > ", cmdlist);
12717
12718         progname = program_invocation_short_name; /* Used in error messages */
12719         if (argc > 1) {
12720                 llapi_set_command_name(argv[1]);
12721                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
12722                 llapi_clear_command_name();
12723         } else {
12724                 rc = Parser_commands();
12725         }
12726
12727         return rc < 0 ? -rc : rc;
12728 }
12729
12730 #ifdef _LUSTRE_IDL_H_
12731 /* Everything we need here should be included by lustreapi.h. */
12732 # error "lfs should not depend on lustre_idl.h"
12733 #endif /* _LUSTRE_IDL_H_ */