lustre/utils/lfs.c

   1 /*
   2  * GPL HEADER START
   3  *
   4  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License version 2 only,
   8  * as published by the Free Software Foundation.
   9  *
  10  * This program is distributed in the hope that it will be useful, but
  11  * WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13  * General Public License version 2 for more details (a copy is included
  14  * in the LICENSE file that accompanied this code).
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * version 2 along with this program; If not, see
  18  * http://www.gnu.org/licenses/gpl-2.0.html
  19  *
  20  * GPL HEADER END
  21  */
  22 /*
  23  * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved.
  24  * Use is subject to license terms.
  25  *
  26  * Copyright (c) 2011, 2017, Intel Corporation.
  27  */
  28 /*
  29  * This file is part of Lustre, http://www.lustre.org/
  30  * Lustre is a trademark of Sun Microsystems, Inc.
  31  *
  32  * lustre/utils/lfs.c
  33  *
  34  * Author: Peter J. Braam <braam@clusterfs.com>
  35  * Author: Phil Schwan <phil@clusterfs.com>
  36  * Author: Robert Read <rread@clusterfs.com>
  37  */
  38
  39 /* for O_DIRECTORY */
  40 #ifndef _GNU_SOURCE
  41 #define _GNU_SOURCE
  42 #endif
  43
  44 #include <stdlib.h>
  45 #include <stdio.h>
  46 #include <inttypes.h>
  47 #include <getopt.h>
  48 #include <string.h>
  49 #include <mntent.h>
  50 #include <unistd.h>
  51 #include <errno.h>
  52 #include <err.h>
  53 #include <pwd.h>
  54 #include <grp.h>
  55 #include <sys/ioctl.h>
  56 #include <sys/quota.h>
  57 #include <sys/time.h>
  58 #include <sys/types.h>
  59 #include <sys/stat.h>
  60 #include <sys/param.h>
  61 #include <sys/xattr.h>
  62 #include <fcntl.h>
  63 #include <dirent.h>
  64 #include <time.h>
  65 #include <ctype.h>
  66 #include <zlib.h>
  67 #include <libgen.h>
  68 #include <asm/byteorder.h>
  69 #include "lfs_project.h"
  70
  71 #include <libcfs/util/string.h>
  72 #include <libcfs/util/ioctl.h>
  73 #include <libcfs/util/parser.h>
  74 #include <libcfs/util/string.h>
  75 #include <lustre/lustreapi.h>
  76 #include <linux/lustre/lustre_ver.h>
  77 #include <linux/lustre/lustre_param.h>
  78 #include <linux/lnet/nidstr.h>
  79 #include <cyaml.h>
  80
  81 #ifndef ARRAY_SIZE
  82 # define ARRAY_SIZE(a) ((sizeof(a)) / (sizeof((a)[0])))
  83 #endif /* !ARRAY_SIZE */
  84
  85 /* all functions */
  86 static int lfs_find(int argc, char **argv);
  87 static int lfs_getstripe(int argc, char **argv);
  88 static int lfs_getdirstripe(int argc, char **argv);
  89 static int lfs_setdirstripe(int argc, char **argv);
  90 static int lfs_rmentry(int argc, char **argv);
  91 static int lfs_osts(int argc, char **argv);
  92 static int lfs_mdts(int argc, char **argv);
  93 static int lfs_df(int argc, char **argv);
  94 static int lfs_getname(int argc, char **argv);
  95 static int lfs_check(int argc, char **argv);
  96 #ifdef HAVE_SYS_QUOTA_H
  97 static int lfs_setquota(int argc, char **argv);
  98 static int lfs_quota(int argc, char **argv);
  99 static int lfs_project(int argc, char **argv);
 100 #endif
 101 static int lfs_flushctx(int argc, char **argv);
 102 static int lfs_poollist(int argc, char **argv);
 103 static int lfs_changelog(int argc, char **argv);
 104 static int lfs_changelog_clear(int argc, char **argv);
 105 static int lfs_fid2path(int argc, char **argv);
 106 static int lfs_path2fid(int argc, char **argv);
 107 static int lfs_rmfid(int argc, char **argv);
 108 static int lfs_data_version(int argc, char **argv);
 109 static int lfs_hsm_state(int argc, char **argv);
 110 static int lfs_hsm_set(int argc, char **argv);
 111 static int lfs_hsm_clear(int argc, char **argv);
 112 static int lfs_hsm_action(int argc, char **argv);
 113 static int lfs_hsm_archive(int argc, char **argv);
 114 static int lfs_hsm_restore(int argc, char **argv);
 115 static int lfs_hsm_release(int argc, char **argv);
 116 static int lfs_hsm_remove(int argc, char **argv);
 117 static int lfs_hsm_cancel(int argc, char **argv);
 118 static int lfs_swap_layouts(int argc, char **argv);
 119 static int lfs_mv(int argc, char **argv);
 120 static int lfs_ladvise(int argc, char **argv);
 121 static int lfs_getsom(int argc, char **argv);
 122 static int lfs_heat_get(int argc, char **argv);
 123 static int lfs_heat_set(int argc, char **argv);
 124 static int lfs_mirror(int argc, char **argv);
 125 static int lfs_mirror_list_commands(int argc, char **argv);
 126 static int lfs_list_commands(int argc, char **argv);
 127 static inline int lfs_mirror_resync(int argc, char **argv);
 128 static inline int lfs_mirror_verify(int argc, char **argv);
 129 static inline int lfs_mirror_read(int argc, char **argv);
 130 static inline int lfs_mirror_write(int argc, char **argv);
 131 static inline int lfs_mirror_copy(int argc, char **argv);
 132 static int lfs_pcc_attach(int argc, char **argv);
 133 static int lfs_pcc_attach_fid(int argc, char **argv);
 134 static int lfs_pcc_detach(int argc, char **argv);
 135 static int lfs_pcc_detach_fid(int argc, char **argv);
 136 static int lfs_pcc_state(int argc, char **argv);
 137 static int lfs_pcc(int argc, char **argv);
 138 static int lfs_pcc_list_commands(int argc, char **argv);
 139 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
 140                               __u64 migration_flags,
 141                               struct llapi_stripe_param *param,
 142                               struct llapi_layout *layout);
 143
 144 enum setstripe_origin {
 145         SO_SETSTRIPE,
 146         SO_MIGRATE,
 147         SO_MIGRATE_MDT,
 148         SO_MIRROR_CREATE,
 149         SO_MIRROR_EXTEND,
 150         SO_MIRROR_SPLIT,
 151         SO_MIRROR_DELETE,
 152 };
 153 static int lfs_setstripe_internal(int argc, char **argv,
 154                                   enum setstripe_origin opc);
 155
 156 static inline int lfs_setstripe(int argc, char **argv)
 157 {
 158         return lfs_setstripe_internal(argc, argv, SO_SETSTRIPE);
 159 }
 160 static inline int lfs_setstripe_migrate(int argc, char **argv)
 161 {
 162         return lfs_setstripe_internal(argc, argv, SO_MIGRATE);
 163 }
 164 static inline int lfs_mirror_create(int argc, char **argv)
 165 {
 166         return lfs_setstripe_internal(argc, argv, SO_MIRROR_CREATE);
 167 }
 168 static inline int lfs_mirror_extend(int argc, char **argv)
 169 {
 170         return lfs_setstripe_internal(argc, argv, SO_MIRROR_EXTEND);
 171 }
 172 static inline int lfs_mirror_split(int argc, char **argv)
 173 {
 174         return lfs_setstripe_internal(argc, argv, SO_MIRROR_SPLIT);
 175 }
 176 static inline int lfs_mirror_delete(int argc, char **argv)
 177 {
 178         return lfs_setstripe_internal(argc, argv, SO_MIRROR_DELETE);
 179 }
 180
 181 /* Setstripe and migrate share mostly the same parameters */
 182 #define SSM_CMD_COMMON(cmd) \
 183         "usage: "cmd" [--component-end|-E <comp_end>]\n"                \
 184         "                 [--stripe-count|-c <stripe_count>]\n"         \
 185         "                 [--overstripe-count|-C <stripe_count>]\n"     \
 186         "                 [--stripe-index|-i <start_ost_idx>]\n"        \
 187         "                 [--stripe-size|-S <stripe_size>]\n"           \
 188         "                 [--layout|-L <pattern>]\n"                    \
 189         "                 [--pool|-p <pool_name>]\n"                    \
 190         "                 [--ost|-o <ost_indices>]\n"                   \
 191         "                 [--yaml|-y <yaml_template_file>]\n"           \
 192         "                 [--copy=<lustre_src>]\n"
 193
 194 #define SSM_HELP_COMMON \
 195         "\tstripe_count: Number of OSTs to stripe over (0=fs default, -1 all)\n" \
 196         "\t              Using -C instead of -c allows overstriping, which\n" \
 197          "\t             will place more than one stripe per OST if\n" \
 198          "\t             stripe_count is greater than the number of OSTs\n" \
 199         "\tstart_ost_idx: OST index of first stripe (-1=default round robin)\n"\
 200         "\tstripe_size:  Number of bytes on each OST (0=fs default)\n" \
 201         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 202         "\t              respectively)\n"                               \
 203         "\tpool_name:    Name of OST pool to use (default none)\n"      \
 204         "\tlayout:       stripe pattern type: raid0, mdt (default raid0)\n"\
 205         "\tost_indices:  List of OST indices, can be repeated multiple times\n"\
 206         "\t              Indices be specified in a format of:\n"        \
 207         "\t                -o <ost_1>,<ost_i>-<ost_j>,<ost_n>\n"        \
 208         "\t              Or:\n"                                         \
 209         "\t                -o <ost_1> -o <ost_i>-<ost_j> -o <ost_n>\n"  \
 210         "\t              If --pool is set with --ost, then the OSTs\n"  \
 211         "\t              must be the members of the pool.\n"            \
 212         "\tcomp_end:     Extent end of component, start after previous end.\n"\
 213         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 214         "\t              respectively, -1 for EOF). Must be a multiple of\n"\
 215         "\t              stripe_size.\n"                                      \
 216         "\tyaml_template_file:\n"                                             \
 217         "\t              YAML layout template file, can't be used with -c,\n" \
 218         "\t              -i, -S, -p, -o, or -E arguments.\n"                  \
 219         "\tlustre_src:   Lustre file/dir whose layout info is used to set\n"  \
 220         "\t              another lustre file or directory, can't used with\n" \
 221         "\t              -c, -i, -S, -p, -o, or -E arguments.\n"
 222
 223 #define MIRROR_CREATE_HELP                                                     \
 224         "\tmirror_count: Number of mirrors to be created with the upcoming\n"  \
 225         "\t              setstripe layout options\n"                           \
 226         "\t              It defaults to 1 if not specified; if specified,\n"   \
 227         "\t              it must follow the option without a space.\n"         \
 228         "\t              The option can also be repeated multiple times to\n"  \
 229         "\t              separate mirrors that have different layouts.\n"      \
 230         "\tsetstripe options: Mirror layout\n"                                 \
 231         "\t              It can be a plain layout or a composite layout.\n"    \
 232         "\t              If not specified, the stripe options inherited\n"     \
 233         "\t              from the previous component will be used.\n"          \
 234         "\tflags:        set flags to the component of the current mirror.\n"  \
 235         "\t              Only \"prefer\" flag is supported so far.\n"
 236
 237 #define MIRROR_EXTEND_HELP                                                     \
 238         MIRROR_CREATE_HELP                                                     \
 239         "\tvictim_file:  The layout of victim_file will be split and used\n"   \
 240         "\t              as a mirror added to the mirrored file.\n"            \
 241         "\tno-verify:    This option indicates not to verify the mirror(s)\n"  \
 242         "\t              from victim file(s) in case the victim file(s)\n"     \
 243         "\t              contains the same data as the original mirrored\n"    \
 244         "\t              file.\n"
 245
 246 #define MIRROR_EXTEND_USAGE                                                    \
 247         "                 <--mirror-count|-N[mirror_count]>\n"                 \
 248         "                 [setstripe options|-f <victim_file>]\n"              \
 249         "                 [--no-verify]\n"
 250
 251 #define SETSTRIPE_USAGE                                                 \
 252         SSM_CMD_COMMON("setstripe")                                     \
 253         MIRROR_EXTEND_USAGE                                             \
 254         "                 <directory|filename>\n"                       \
 255         SSM_HELP_COMMON                                                 \
 256         MIRROR_EXTEND_HELP
 257
 258 #define MIGRATE_USAGE                                                   \
 259         SSM_CMD_COMMON("migrate  ")                                     \
 260         "                 [--block|-b] [--non-block|-n]\n"              \
 261         "                 [--non-direct|-D] [--verbose|-v]\n"           \
 262         "                 <filename>\n"                                 \
 263         SSM_HELP_COMMON                                                 \
 264         "\n"                                                            \
 265         "\tblock:        Block file access during data migration (default)\n" \
 266         "\tnon-block:    Abort migrations if concurrent access is detected\n" \
 267         "\tnon-direct:   Do not use direct I/O to copy file contents\n" \
 268         "\tverbose:      Print each filename as it is migrated\n"       \
 269
 270 #define SETDIRSTRIPE_USAGE                                              \
 271         "               [--mdt-count|-c stripe_count>\n"                \
 272         "               [--mdt-hash|-H mdt_hash]\n"                     \
 273         "               [--mdt-index|-i mdt_index[,mdt_index,...]\n"    \
 274         "               [--default|-D] [--mode|-o mode] <dir>\n"        \
 275         "\tstripe_count: stripe count of the striped directory\n"       \
 276         "\tmdt_index: MDT index of first stripe\n"                      \
 277         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 278         "       fnv_1a_64 FNV-1a hash algorithm (default)\n"            \
 279         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 280         "       space     create subdirectories with balanced space usage\n" \
 281         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 282         "\tmode: the file access permission of the directory (octal)\n" \
 283         "To create dir with a foreign (free format) layout :\n" \
 284         "setdirstripe|mkdir --foreign[=<foreign_type>] -x|-xattr <string> " \
 285                 "[--mode|-m mode] [--flags <hex>] <dir>\n" \
 286         "\tmode: the mode of the directory\n" \
 287         "\tforeign_type: none or daos\n"
 288
 289 /**
 290  * command_t mirror_cmdlist - lfs mirror commands.
 291  */
 292 command_t mirror_cmdlist[] = {
 293         { .pc_name = "create", .pc_func = lfs_mirror_create,
 294           .pc_help = "Create a mirrored file.\n"
 295                 "usage: lfs mirror create "
 296                 "<--mirror-count|-N[mirror_count]> "
 297                 "[setstripe options] ... <filename|directory> ...\n"
 298           MIRROR_CREATE_HELP },
 299         { .pc_name = "delete", .pc_func = lfs_mirror_delete,
 300           .pc_help = "delete a mirror from a file.\n"
 301                 "usage: lfs mirror delete {--comp-id|-I <comp_id>|-p <pool>} <mirrored_file> ...\n"
 302         },
 303         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 304           .pc_help = "Extend a mirrored file.\n"
 305                 "usage: lfs mirror extend "
 306                 "<--mirror-count|-N[mirror_count]> [--no-verify] "
 307                 "[setstripe options|-f <victim_file>] ... <filename> ...\n"
 308           MIRROR_EXTEND_HELP },
 309         { .pc_name = "split", .pc_func = lfs_mirror_split,
 310           .pc_help = "Split a mirrored file.\n"
 311         "usage: lfs mirror split <--mirror-id <mirror_id> |\n"
 312         "\t             <--component-id|-I <comp_id>|-p <pool>> [--destroy|-d]\n"
 313         "\t             [-f <new_file>] <mirrored_file> ...\n"
 314         "\tmirror_id:   The numerical unique identifier for a mirror. It\n"
 315         "\t             can be fetched by lfs getstripe command.\n"
 316         "\tcomp_id:     Unique component ID within a mirror.\n"
 317         "\tpool:        Components on specified pool.\n"
 318         "\tnew_file:    This option indicates the layout of the split\n"
 319         "\t             mirror will be stored into. If not specified,\n"
 320         "\t             a new file named <mirrored_file>.mirror~<mirror_id>\n"
 321         "\t             will be used.\n" },
 322         { .pc_name = "read", .pc_func = lfs_mirror_read,
 323           .pc_help = "Read the content of a specified mirror of a file.\n"
 324                 "usage: lfs mirror read <--mirror-id|-N <mirror_id> "
 325                 "[--outfile|-o <output_file>] <mirrored_file>\n" },
 326         { .pc_name = "write", .pc_func = lfs_mirror_write,
 327           .pc_help = "Write to a specified mirror of a file.\n"
 328                 "usage: lfs mirror write <--mirror-id|-N <mirror_id> "
 329                 "[--inputfile|-i <input_file>] <mirrored_file>\n" },
 330         { .pc_name = "copy", .pc_func = lfs_mirror_copy,
 331           .pc_help = "Copy a specified mirror to other mirror(s) of a file.\n"
 332                 "usage: lfs mirror copy <--read-mirror|-i <id0>> "
 333                 "<--write-mirror|-o <id1,id2>> <mirrored_file>\n" },
 334         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 335           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 336                 "usage: lfs mirror resync [--only <mirror_id[,...]>] "
 337                 "<mirrored file> [<mirrored file2>...]\n"},
 338         { .pc_name = "verify", .pc_func = lfs_mirror_verify,
 339           .pc_help = "Verify mirrored file(s).\n"
 340                 "usage: lfs mirror verify "
 341                 "[--only <mirror_id,mirror_id2[,...]>] "
 342                 "[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n"},
 343         { .pc_name = "list-commands", .pc_func = lfs_mirror_list_commands,
 344           .pc_help = "list commands supported by lfs mirror"},
 345         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 346         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 347         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 348         { .pc_help = NULL }
 349 };
 350
 351 /**
 352  * command_t pcc_cmdlist - lfs pcc commands.
 353  */
 354 command_t pcc_cmdlist[] = {
 355         { .pc_name = "attach", .pc_func = lfs_pcc_attach,
 356           .pc_help = "Attach given files to the Persistent Client Cache.\n"
 357                 "usage: lfs pcc attach <--id|-i NUM> <file> ...\n"
 358                 "\t-i: archive id for RW-PCC\n" },
 359         { .pc_name = "attach_fid", .pc_func = lfs_pcc_attach_fid,
 360           .pc_help = "Attach given files into PCC by FID(s).\n"
 361                 "usage: lfs pcc attach_id <--id|-i NUM> <--mnt|-m mnt> "
 362                 "<fid> ...\n"
 363                 "\t-i: archive id for RW-PCC\n"
 364                 "\t-m: Lustre mount point\n" },
 365         { .pc_name = "state", .pc_func = lfs_pcc_state,
 366           .pc_help = "Display the PCC state for given files.\n"
 367                 "usage: lfs pcc state <file> ...\n" },
 368         { .pc_name = "detach", .pc_func = lfs_pcc_detach,
 369           .pc_help = "Detach given files from the Persistent Client Cache.\n"
 370                 "usage: lfs pcc detach <file> ...\n" },
 371         { .pc_name = "detach_fid", .pc_func = lfs_pcc_detach_fid,
 372           .pc_help = "Detach given files from PCC by FID(s).\n"
 373                 "usage: lfs pcc detach_fid <mntpath> <fid>...\n" },
 374         { .pc_name = "list-commands", .pc_func = lfs_pcc_list_commands,
 375           .pc_help = "list commands supported by lfs pcc"},
 376         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 377         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 378         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 379         { .pc_help = NULL }
 380 };
 381
 382 /* all available commands */
 383 command_t cmdlist[] = {
 384         {"setstripe", lfs_setstripe, 0,
 385          "To create a file with specified striping/composite layout, or\n"
 386          "create/replace the default layout on an existing directory:\n"
 387          SSM_CMD_COMMON("setstripe")
 388          "                 [--mode <mode>]\n"
 389          "                 <directory|filename>\n"
 390          " or\n"
 391          "To add component(s) to an existing composite file:\n"
 392          SSM_CMD_COMMON("setstripe --component-add")
 393          SSM_HELP_COMMON
 394          "To totally delete the default striping from an existing directory:\n"
 395          "usage: setstripe -d <directory>\n"
 396          " or\n"
 397          "To create a mirrored file or set s default mirror layout on a directory:\n"
 398          "usage: setstripe -N[mirror_count] [STRIPE_OPTIONS] <directory|filename>\n"
 399          " or\n"
 400          "To delete the last component(s) from an existing composite file\n"
 401          "(note that this will also delete any data in those components):\n"
 402          "usage: setstripe --component-del [--component-id|-I <comp_id>]\n"
 403          "                               [--component-flags|-F <comp_flags>]\n"
 404          "                               <filename>\n"
 405          "\tcomp_id:     Unique component ID to delete\n"
 406          "\tcomp_flags:  'init' indicating all instantiated components\n"
 407          "\t             '^init' indicating all uninstantiated components\n"
 408          "\t-I and -F cannot be specified at the same time\n"
 409          "To create a file with a foreign (free format) layout:\n"
 410          "usage: setstripe --foreign[=<foreign_type>]\n"
 411          "                 --xattr|-x <layout_string> [--flags <hex>]\n"
 412          "                 [--mode <mode>] <filename>\n"},
 413         {"getstripe", lfs_getstripe, 0,
 414          "To list the layout pattern for a given file or files in a\n"
 415          "directory or recursively for all files in a directory tree.\n"
 416          "usage: getstripe [--ost|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
 417          "                 [--stripe-count|-c] [--stripe-index|-i] [--fid|-F]\n"
 418          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 419          "                 [--mdt-index|-m] [--recursive|-r] [--raw|-R]\n"
 420          "                 [--layout|-L] [--generation|-g] [--yaml|-y]\n"
 421          "                 [--component-id[=comp_id]|-I[comp_id]]\n"
 422          "                 [--component-flags[=comp_flags]]\n"
 423          "                 [--component-count]\n"
 424          "                 [--extension-size|--ext-size|-z]\n"
 425          "                 [--component-start[=[+-]comp_start]]\n"
 426          "                 [--component-end[=[+-]comp_end]|-E[[+-]comp_end]]\n"
 427          "                 [[!] --mirror-index=[+-]<index> |\n"
 428          "                  [!] --mirror-id=[+-]<id>]\n"
 429          "                 <directory|filename> ..."},
 430         {"setdirstripe", lfs_setdirstripe, 0,
 431          "To create a striped directory on a specified MDT. This can only\n"
 432          "be done on MDT0 with the right of administrator.\n"
 433          "usage: setdirstripe [OPTION] <directory>\n"
 434          SETDIRSTRIPE_USAGE},
 435         {"getdirstripe", lfs_getdirstripe, 0,
 436          "To list the layout pattern info for a given directory\n"
 437          "or recursively for all directories in a directory tree.\n"
 438          "usage: getdirstripe [--mdt-count|-c] [--mdt-index|-m|-i]\n"
 439          "                    [--mdt-hash|-H] [--obd|-O <uuid>]\n"
 440          "                    [--recursive|-r] [--yaml|-y]\n"
 441          "                    [--verbose|-v] [--default|-D] <dir> ..."},
 442         {"mkdir", lfs_setdirstripe, 0,
 443          "To create a striped directory on a specified MDT. This can only\n"
 444          "be done on MDT0 with the right of administrator.\n"
 445          "usage: mkdir [OPTION] <directory>\n"
 446          SETDIRSTRIPE_USAGE},
 447         {"rm_entry", lfs_rmentry, 0,
 448          "To remove the name entry of the remote directory. Note: This\n"
 449          "command will only delete the name entry, i.e. the remote directory\n"
 450          "will become inaccessable after this command. This can only be done\n"
 451          "by the administrator\n"
 452          "usage: rm_entry <dir>\n"},
 453         {"pool_list", lfs_poollist, 0,
 454          "List pools or pool OSTs\n"
 455          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 456         {"find", lfs_find, 0,
 457          "find files matching given attributes recursively in directory tree.\n"
 458          "usage: find <directory|filename> ...\n"
 459          "     [[!] --atime|-A [+-]N[smhdwy]] [[!] --ctime|-C [+-]N[smhdwy]]\n"
 460          "     [[!] --mtime|-M [+-]N[smhdwy]] [[!] --blocks|-b N]\n"
 461          "     [[!] --newer[XY] <reference>]\n"
 462          "     [--maxdepth|-D N] [[!] --mdt-index|--mdt|-m <uuid|index,...>]\n"
 463          "     [[!] --name|-n <pattern>] [[!] --ost|-O <uuid|index,...>]\n"
 464          "     [--print|-P] [--print0|-0] [[!] --size|-s [+-]N[bkMGTPE]]\n"
 465          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 466          "     [[!] --stripe-index|-i <index,...>]\n"
 467          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 468          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
 469          "     [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
 470          "     [[!] --projid <projid>]\n"
 471          "     [[!] --foreign[=<foreign_type>]]\n"
 472          "     [[!] --layout|-L released,raid0,mdt]\n"
 473          "     [[!] --foreign[=<foreign_type>]]\n"
 474          "     [[!] --component-count [+-]<comp_cnt>]\n"
 475          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 476          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 477          "     [[!] --component-flags <comp_flags>]\n"
 478          "     [[!] --mirror-count|-N [+-]<n>]\n"
 479          "     [[!] --mirror-state <[^]state>]\n"
 480          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 481          "     [[!] --mdt-hash|-H <hashtype>\n"
 482          "     [[!] --mdt-index|-m <uuid|index,...>]\n"
 483          "\t !: used before an option indicates 'NOT' requested attribute\n"
 484          "\t -: used before a value indicates less than requested value\n"
 485          "\t +: used before a value indicates more than requested value\n"
 486          "\thashtype:   hash type of the striped directory.\n"
 487          "\t            fnv_1a_64 FNV-1a hash algorithm\n"
 488          "\t            all_char  sum of characters % MDT_COUNT\n"},
 489         {"check", lfs_check, 0,
 490          "Display the status of MGTs, MDTs or OSTs (as specified in the command)\n"
 491          "or all the servers (MGTs, MDTs and OSTs).\n"
 492          "usage: check <mgts|osts|mdts|all>"},
 493         {"osts", lfs_osts, 0, "list OSTs connected to client "
 494          "[for specified path only]\n" "usage: osts [path]"},
 495         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 496          "[for specified path only]\n" "usage: mdts [path]"},
 497         {"df", lfs_df, 0,
 498          "report filesystem disk space usage or inodes usage "
 499          "of each MDS and all OSDs or a batch belonging to a specific pool.\n"
 500          "Usage: df [-i] [-h] [--lazy|-l] [--pool|-p <fsname>[.<pool>] [path]"},
 501         {"getname", lfs_getname, 0,
 502          "list instances and specified mount points [for specified path only]\n"
 503          "Usage: getname [--help|-h] [--instance|-i] [--fsname|-n] [path ...]"},
 504 #ifdef HAVE_SYS_QUOTA_H
 505         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 506          "usage: setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 507          "                -b <block-softlimit> -B <block-hardlimit>\n"
 508          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 509          "       setquota <-u|--user|-g|--group|-p|--projid> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 510          "                [--block-softlimit <block-softlimit>]\n"
 511          "                [--block-hardlimit <block-hardlimit>]\n"
 512          "                [--inode-softlimit <inode-softlimit>]\n"
 513          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 514          "       setquota [-t] <-u|--user|-g|--group|-p|--projid>\n"
 515          "                [--block-grace <block-grace>]\n"
 516          "                [--inode-grace <inode-grace>] <filesystem>\n"
 517          "       setquota <-U|-G|-P>\n"
 518          "                -b <block-softlimit> -B <block-hardlimit>\n"
 519          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 520          "       setquota <-U|--default-usr|-G|--default-grp|-P|--default-prj>\n"
 521          "                [--block-softlimit <block-softlimit>]\n"
 522          "                [--block-hardlimit <block-hardlimit>]\n"
 523          "                [--inode-softlimit <inode-softlimit>]\n"
 524          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 525          "       setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 526          "                <-d|--default>\n"
 527          "       -b can be used instead of --block-softlimit/--block-grace\n"
 528          "       -B can be used instead of --block-hardlimit\n"
 529          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 530          "       -I can be used instead of --inode-hardlimit\n"
 531          "       -d can be used instead of --default\n\n"
 532          "Note: The total quota space will be split into many qunits and\n"
 533          "      balanced over all server targets, the minimal qunit size is\n"
 534          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 535          "      The maximum quota grace time is 2^48 - 1 seconds.\n\n"
 536          "      Quota space rebalancing process will stop when this mininum\n"
 537          "      value is reached. As a result, quota exceeded can be returned\n"
 538          "      while many targets still have 1MB or 1K inodes of spare\n"
 539          "      quota space."},
 540         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 541          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
 542                        "<ost_idx>]\n"
 543          "             [<-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>\n"
 544          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g|-p> <filesystem>\n"
 545         "        quota [-q] [-v] [h] <-U|-G|-P> <filesystem>"},
 546         {"project", lfs_project, 0,
 547          "Change or list project attribute for specified file or directory.\n"
 548          "usage: project [-d|-r] <file|directory...>\n"
 549          "         list project ID and flags on file(s) or directories\n"
 550          "       project [-p id] [-s] [-r] <file|directory...>\n"
 551          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 552          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 553          "         check project ID and flags on file(s) or directories, print outliers\n"
 554          "       project -C [-r] [-k] <file|directory...>\n"
 555          "         clear the project inherit flag and ID on the file or directory\n"
 556         },
 557 #endif
 558         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
 559          "usage: flushctx [-k] [mountpoint...]"},
 560         {"changelog", lfs_changelog, 0,
 561          "Show the metadata changes on an MDT."
 562          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 563         {"changelog_clear", lfs_changelog_clear, 0,
 564          "Indicate that old changelog records up to <endrec> are no longer of "
 565          "interest to consumer <id>, allowing the system to free up space.\n"
 566          "An <endrec> of 0 means all records.\n"
 567          "usage: changelog_clear <mdtname> <id> <endrec>"},
 568         {"fid2path", lfs_fid2path, 0,
 569          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 570          "specify link number <linkno>.\n"
 571          "usage: fid2path [-c] [--link|-l <linkno>] <fsname|root> <fid> ..."},
 572         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 573          "usage: path2fid [--parents] <path> ..."},
 574         {"rmfid", lfs_rmfid, 0, "Remove file(s) by FID(s)\n"
 575          "usage: rmfid <fsname|rootpath> <fid> ..."},
 576         {"data_version", lfs_data_version, 0, "Display file data version for "
 577          "a given path.\n" "usage: data_version -[n|r|w] <path>"},
 578         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 579          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 580         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 581          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 582          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 583         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 584          "files.\n"
 585          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 586          "[--archived] [--lost] <file> ..."},
 587         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 588          "given files.\n" "usage: hsm_action <file> ..."},
 589         {"hsm_archive", lfs_hsm_archive, 0,
 590          "Archive file to external storage.\n"
 591          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 592          "<file> ..."},
 593         {"hsm_restore", lfs_hsm_restore, 0,
 594          "Restore file from external storage.\n"
 595          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 596         {"hsm_release", lfs_hsm_release, 0,
 597          "Release files from Lustre.\n"
 598          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 599         {"hsm_remove", lfs_hsm_remove, 0,
 600          "Remove file copy from external storage.\n"
 601          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 602          "[--archive NUM]\n"
 603          "                  (FILE [FILE ...] | "
 604          "--mntpath MOUNTPATH FID [FID ...])\n"
 605          "\n"
 606          "Note: To remove an archived copy of a file already deleted from a "
 607          "Lustre FS, the\n"
 608          "--mntpath option and a list of FIDs must be specified"
 609         },
 610         {"hsm_cancel", lfs_hsm_cancel, 0,
 611          "Cancel requests related to specified files.\n"
 612          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 613         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 614          "usage: swap_layouts <path1> <path2>"},
 615         {"migrate", lfs_setstripe_migrate, 0,
 616          "migrate a directory between MDTs.\n"
 617          "usage: migrate [--mdt-count|-c] <stripe_count>\n"
 618          "               [--mdt-hash|-H] <hash_type>\n"
 619          "               [--mdt-index|-m] <start_mdt_index>\n"
 620          "               [--verbose|-v]\n"
 621          "               <directory>\n"
 622          "\tmdt:        MDTs to stripe over, if only one MDT is specified\n"
 623          "                      it's the MDT index of first stripe\n"
 624          "\tmdt_count:  number of MDTs to stripe a directory over\n"
 625          "\tmdt_hash:   hash type of the striped directory. mdt types:\n"
 626          "                      fnv_1a_64 FNV-1a hash algorithm (default)\n"
 627          "                      all_char  sum of characters % MDT_COUNT\n"
 628          "\n"
 629          "migrate file objects from one OST "
 630          "layout\nto another (may be not safe with concurent writes).\n"
 631          "usage: migrate  "
 632          "[--stripe-count|-c] <stripe_count>\n"
 633          "[--overstripe-count|-C] <stripe_count>\n"
 634          "              [--stripe-index|-i] <start_ost_index>\n"
 635          "              [--stripe-size|-S] <stripe_size>\n"
 636          "              [--pool|-p] <pool_name>\n"
 637          "              [--ost|-o] <ost_indices>\n"
 638          "              [--block|-b]\n"
 639          "              [--non-block|-n]\n"
 640          "              [--non-direct|-D]\n"
 641          "              <file|directory>\n"
 642          "\tstripe_count:     number of OSTs to stripe a file over\n"
 643          "\t              Using -C instead of -c allows overstriping, which\n"
 644          "\t              will place more than one stripe per OST if\n"
 645          "\t              stripe_count is greater than the number of OSTs\n"
 646          "\tstripe_ost_index: index of the first OST to stripe a file over\n"
 647          "\tstripe_size:      number of bytes to store before moving to the next OST\n"
 648          "\tpool_name:        name of the predefined pool of OSTs\n"
 649          "\tost_indices:      OSTs to stripe over, in order\n"
 650          "\tblock:        Block file access during data migration (default)\n"
 651          "\tnon-block:    Abort migrations if concurrent access is detected\n"
 652          "\tnon-direct:       do not use direct I/O to copy file contents.\n"},
 653         {"mv", lfs_mv, 0,
 654          "To move directories between MDTs. This command is deprecated, "
 655          "use \"migrate\" instead.\n"
 656          "usage: mv <directory|filename> [--mdt-index|-m] <mdt_index> "
 657          "[--verbose|-v]\n"},
 658         {"ladvise", lfs_ladvise, 0,
 659          "Provide servers with advice about access patterns for a file.\n"
 660          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 661          "               [--background|-b] [--unset|-u]\n\n"
 662          "               {[--end|-e END[kMGT]] | [--length|-l LENGTH[kMGT]]}\n"
 663          "               {[--mode|-m [READ,WRITE]}\n"
 664          "               <file> ...\n"},
 665         {"mirror", lfs_mirror, mirror_cmdlist,
 666          "lfs commands used to manage files with mirrored components:\n"
 667          "lfs mirror create - create a mirrored file or directory\n"
 668          "lfs mirror extend - add mirror(s) to an existing file\n"
 669          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 670          "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
 671          "lfs mirror read   - read a mirror content of a mirrored file\n"
 672          "lfs mirror write  - write to a mirror of a mirrored file\n"
 673          "lfs mirror copy   - copy a mirror to other mirror(s) of a file\n"
 674          "lfs mirror verify - verify mirrored file(s)\n"},
 675         {"getsom", lfs_getsom, 0, "To list the SOM info for a given file.\n"
 676          "usage: getsom [-s] [-b] [-f] <path>\n"
 677          "\t-s: Only show the size value of the SOM data for a given file\n"
 678          "\t-b: Only show the blocks value of the SOM data for a given file\n"
 679          "\t-f: Only show the flags value of the SOM data for a given file\n"},
 680         {"heat_get", lfs_heat_get, 0,
 681          "To get heat of files.\n"
 682          "usage: heat_get <file> ...\n"},
 683         {"heat_set", lfs_heat_set, 0,
 684          "To set heat flags of files.\n"
 685          "usage: heat_set [--clear|-c] [--off|-o] [--on|-O] <file> ...\n"
 686          "\t--clear|-c: Clear file heat for given files\n"
 687          "\t--off|-o:   Turn off file heat for given files\n"
 688          "\t--on|-O:    Turn on file heat for given files\n"},
 689         {"pcc", lfs_pcc, pcc_cmdlist,
 690          "lfs commands used to interact with PCC features:\n"
 691          "lfs pcc attach - attach given files to Persistent Client Cache\n"
 692          "lfs pcc attach_fid - attach given files into PCC by FID(s)\n"
 693          "lfs pcc state  - display the PCC state for given files\n"
 694          "lfs pcc detach - detach given files from Persistent Client Cache\n"
 695          "lfs pcc detach_fid - detach given files from PCC by FID(s)\n"},
 696         {"help", Parser_help, 0, "help"},
 697         {"exit", Parser_quit, 0, "quit"},
 698         {"quit", Parser_quit, 0, "quit"},
 699         {"--version", Parser_version, 0,
 700          "output build version of the utility and exit"},
 701         {"--list-commands", lfs_list_commands, 0,
 702          "list commands supported by the utility and exit"},
 703         { 0, 0, 0, NULL }
 704 };
 705
 706
 707 static int check_hashtype(const char *hashtype)
 708 {
 709         int i;
 710
 711         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 712                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 713                         return i;
 714
 715         return 0;
 716 }
 717
 718 static uint32_t check_foreign_type_name(const char *foreign_type_name)
 719 {
 720         uint32_t i;
 721
 722         for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
 723                 if (lu_foreign_types[i].lft_name == NULL)
 724                         break;
 725                 if (strcmp(foreign_type_name,
 726                            lu_foreign_types[i].lft_name) == 0)
 727                         return lu_foreign_types[i].lft_type;
 728         }
 729
 730         return LU_FOREIGN_TYPE_UNKNOWN;
 731 }
 732
 733 static const char *error_loc = "syserror";
 734
 735 enum {
 736         MIGRATION_NONBLOCK      = 0x0001,
 737         MIGRATION_MIRROR        = 0x0002,
 738         MIGRATION_NONDIRECT     = 0x0004,
 739         MIGRATION_VERBOSE       = 0x0008,
 740 };
 741
 742 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
 743                                 struct llapi_layout *layout);
 744
 745 static int
 746 migrate_open_files(const char *name, __u64 migration_flags,
 747                    const struct llapi_stripe_param *param,
 748                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 749 {
 750         int                      fd = -1;
 751         int                      fdv = -1;
 752         int                      rflags;
 753         int                      mdt_index;
 754         int                      random_value;
 755         char                     parent[PATH_MAX];
 756         char                     volatile_file[PATH_MAX];
 757         char                    *ptr;
 758         int                      rc;
 759         struct stat              st;
 760         struct stat              stv;
 761
 762         if (param == NULL && layout == NULL) {
 763                 error_loc = "layout information";
 764                 return -EINVAL;
 765         }
 766
 767         /* search for file directory pathname */
 768         if (strlen(name) > sizeof(parent) - 1) {
 769                 error_loc = "source file name";
 770                 return -ERANGE;
 771         }
 772
 773         strncpy(parent, name, sizeof(parent));
 774         ptr = strrchr(parent, '/');
 775         if (ptr == NULL) {
 776                 if (getcwd(parent, sizeof(parent)) == NULL) {
 777                         error_loc = "getcwd";
 778                         return -errno;
 779                 }
 780         } else {
 781                 if (ptr == parent) /* leading '/' */
 782                         ptr = parent + 1;
 783                 *ptr = '\0';
 784         }
 785
 786         /* open file, direct io */
 787         /* even if the file is only read, WR mode is nedeed to allow
 788          * layout swap on fd */
 789         rflags = O_RDWR;
 790         if (!(migration_flags & MIGRATION_NONDIRECT))
 791                 rflags |= O_DIRECT;
 792         fd = open(name, rflags);
 793         if (fd < 0) {
 794                 rc = -errno;
 795                 error_loc = "cannot open source file";
 796                 return rc;
 797         }
 798
 799         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 800         if (rc < 0) {
 801                 error_loc = "cannot get MDT index";
 802                 goto out;
 803         }
 804
 805         do {
 806                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 807                 mode_t open_mode = S_IRUSR | S_IWUSR;
 808
 809                 random_value = random();
 810                 rc = snprintf(volatile_file, sizeof(volatile_file),
 811                               "%s/%s:%.4X:%.4X", parent, LUSTRE_VOLATILE_HDR,
 812                               mdt_index, random_value);
 813                 if (rc >= sizeof(volatile_file)) {
 814                         rc = -ENAMETOOLONG;
 815                         break;
 816                 }
 817
 818                 /* create, open a volatile file, use caching (ie no directio) */
 819                 if (param != NULL)
 820                         fdv = llapi_file_open_param(volatile_file, open_flags,
 821                                                     open_mode, param);
 822                 else
 823                         fdv = lfs_component_create(volatile_file, open_flags,
 824                                                    open_mode, layout);
 825         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 826
 827         if (rc < 0) {
 828                 error_loc = "cannot create volatile file";
 829                 goto out;
 830         }
 831
 832         /* In case the MDT does not support creation of volatile files
 833          * we should try to unlink it. */
 834         (void)unlink(volatile_file);
 835
 836         /* Not-owner (root?) special case.
 837          * Need to set owner/group of volatile file like original.
 838          * This will allow to pass related check during layout_swap.
 839          */
 840         rc = fstat(fd, &st);
 841         if (rc != 0) {
 842                 rc = -errno;
 843                 error_loc = "cannot stat source file";
 844                 goto out;
 845         }
 846
 847         rc = fstat(fdv, &stv);
 848         if (rc != 0) {
 849                 rc = -errno;
 850                 error_loc = "cannot stat volatile";
 851                 goto out;
 852         }
 853
 854         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 855                 rc = fchown(fdv, st.st_uid, st.st_gid);
 856                 if (rc != 0) {
 857                         rc = -errno;
 858                         error_loc = "cannot change ownwership of volatile";
 859                         goto out;
 860                 }
 861         }
 862
 863 out:
 864         if (rc < 0) {
 865                 if (fd > 0)
 866                         close(fd);
 867                 if (fdv > 0)
 868                         close(fdv);
 869         } else {
 870                 *fd_src = fd;
 871                 *fd_tgt = fdv;
 872                 error_loc = NULL;
 873         }
 874         return rc;
 875 }
 876
 877 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 878 {
 879         struct llapi_layout *layout;
 880         size_t   buf_size = 4 * 1024 * 1024;
 881         void    *buf = NULL;
 882         ssize_t  rsize = -1;
 883         ssize_t  wsize = 0;
 884         size_t   rpos = 0;
 885         size_t   wpos = 0;
 886         off_t    bufoff = 0;
 887         int      rc;
 888
 889         layout = llapi_layout_get_by_fd(fd_src, 0);
 890         if (layout != NULL) {
 891                 uint64_t stripe_size;
 892
 893                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 894                 if (rc == 0)
 895                         buf_size = stripe_size;
 896
 897                 llapi_layout_free(layout);
 898         }
 899
 900         /* Use a page-aligned buffer for direct I/O */
 901         rc = posix_memalign(&buf, getpagesize(), buf_size);
 902         if (rc != 0)
 903                 return -rc;
 904
 905         while (1) {
 906                 /* read new data only if we have written all
 907                  * previously read data */
 908                 if (wpos == rpos) {
 909                         if (check_file) {
 910                                 rc = check_file(fd_src);
 911                                 if (rc < 0)
 912                                         break;
 913                         }
 914
 915                         rsize = read(fd_src, buf, buf_size);
 916                         if (rsize < 0) {
 917                                 rc = -errno;
 918                                 break;
 919                         }
 920                         rpos += rsize;
 921                         bufoff = 0;
 922                 }
 923                 /* eof ? */
 924                 if (rsize == 0)
 925                         break;
 926
 927                 wsize = write(fd_dst, buf + bufoff, rpos - wpos);
 928                 if (wsize < 0) {
 929                         rc = -errno;
 930                         break;
 931                 }
 932                 wpos += wsize;
 933                 bufoff += wsize;
 934         }
 935
 936         if (rc == 0) {
 937                 rc = fsync(fd_dst);
 938                 if (rc < 0)
 939                         rc = -errno;
 940         }
 941
 942         free(buf);
 943         return rc;
 944 }
 945
 946 static int migrate_copy_timestamps(int fd, int fdv)
 947 {
 948         struct stat st;
 949
 950         if (fstat(fd, &st) == 0) {
 951                 struct timeval tv[2] = {
 952                         {.tv_sec = st.st_atime},
 953                         {.tv_sec = st.st_mtime}
 954                 };
 955
 956                 return futimes(fdv, tv);
 957         }
 958
 959         return -errno;
 960 }
 961
 962 static int migrate_block(int fd, int fdv)
 963 {
 964         __u64   dv1;
 965         int     gid;
 966         int     rc;
 967         int     rc2;
 968
 969         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 970         if (rc < 0) {
 971                 error_loc = "cannot get dataversion";
 972                 return rc;
 973         }
 974
 975         do
 976                 gid = random();
 977         while (gid == 0);
 978
 979         /* The grouplock blocks all concurrent accesses to the file.
 980          * It has to be taken after llapi_get_data_version as it would
 981          * block it too. */
 982         rc = llapi_group_lock(fd, gid);
 983         if (rc < 0) {
 984                 error_loc = "cannot get group lock";
 985                 return rc;
 986         }
 987
 988         rc = migrate_copy_data(fd, fdv, NULL);
 989         if (rc < 0) {
 990                 error_loc = "data copy failed";
 991                 goto out_unlock;
 992         }
 993
 994         /* Make sure we keep original atime/mtime values */
 995         rc = migrate_copy_timestamps(fd, fdv);
 996         if (rc < 0) {
 997                 error_loc = "timestamp copy failed";
 998                 goto out_unlock;
 999         }
1000
1001         /* swap layouts
1002          * for a migration we need to check data version on file did
1003          * not change.
1004          *
1005          * Pass in gid=0 since we already own grouplock. */
1006         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
1007                                            SWAP_LAYOUTS_CHECK_DV1);
1008         if (rc == -EAGAIN) {
1009                 error_loc = "file changed";
1010                 goto out_unlock;
1011         } else if (rc < 0) {
1012                 error_loc = "cannot swap layout";
1013                 goto out_unlock;
1014         }
1015
1016 out_unlock:
1017         rc2 = llapi_group_unlock(fd, gid);
1018         if (rc2 < 0 && rc == 0) {
1019                 error_loc = "unlock group lock";
1020                 rc = rc2;
1021         }
1022
1023         return rc;
1024 }
1025
1026 /**
1027  * Internal helper for migrate_copy_data(). Check lease and report error if
1028  * need be.
1029  *
1030  * \param[in]  fd           File descriptor on which to check the lease.
1031  *
1032  * \retval 0       Migration can keep on going.
1033  * \retval -errno  Error occurred, abort migration.
1034  */
1035 static int check_lease(int fd)
1036 {
1037         int rc;
1038
1039         rc = llapi_lease_check(fd);
1040         if (rc > 0)
1041                 return 0; /* llapi_check_lease returns > 0 on success. */
1042
1043         return -EBUSY;
1044 }
1045
1046 static int migrate_nonblock(int fd, int fdv)
1047 {
1048         __u64   dv1;
1049         __u64   dv2;
1050         int     rc;
1051
1052         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
1053         if (rc < 0) {
1054                 error_loc = "cannot get data version";
1055                 return rc;
1056         }
1057
1058         rc = migrate_copy_data(fd, fdv, check_lease);
1059         if (rc < 0) {
1060                 error_loc = "data copy failed";
1061                 return rc;
1062         }
1063
1064         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
1065         if (rc != 0) {
1066                 error_loc = "cannot get data version";
1067                 return rc;
1068         }
1069
1070         if (dv1 != dv2) {
1071                 rc = -EAGAIN;
1072                 error_loc = "source file changed";
1073                 return rc;
1074         }
1075
1076         /* Make sure we keep original atime/mtime values */
1077         rc = migrate_copy_timestamps(fd, fdv);
1078         if (rc < 0) {
1079                 error_loc = "timestamp copy failed";
1080                 return rc;
1081         }
1082
1083         return 0;
1084 }
1085
1086 static int lfs_component_set(char *fname, int comp_id,
1087                              __u32 flags, __u32 neg_flags)
1088 {
1089         __u32 ids[2];
1090         __u32 flags_array[2];
1091         size_t count = 0;
1092         int rc;
1093
1094         if (flags) {
1095                 ids[count] = comp_id;
1096                 flags_array[count] = flags;
1097                 ++count;
1098         }
1099
1100         if (neg_flags) {
1101                 if (neg_flags & LCME_FL_STALE) {
1102                         fprintf(stderr, "%s: cannot clear 'stale' flags from "
1103                                 "component. Please use lfs-mirror-resync(1) "
1104                                 "instead\n", progname);
1105                         return -EINVAL;
1106                 }
1107
1108                 ids[count] = comp_id;
1109                 flags_array[count] = neg_flags | LCME_FL_NEG;
1110                 ++count;
1111         }
1112
1113         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
1114         if (rc) {
1115                 if (errno == EUCLEAN) {
1116                         rc = -errno;
1117                         fprintf(stderr,
1118                                 "%s: cannot set 'stale' flag on component '%#x' of the last non-stale mirror of '%s'\n",
1119                                 progname, comp_id, fname);
1120                 } else {
1121                         fprintf(stderr,
1122                                 "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
1123                                 progname, comp_id, fname, flags, neg_flags);
1124                 }
1125         }
1126
1127         return rc;
1128 }
1129
1130 static int lfs_component_del(char *fname, __u32 comp_id,
1131                              __u32 flags, __u32 neg_flags)
1132 {
1133         int     rc = 0;
1134
1135         if (flags && neg_flags)
1136                 return -EINVAL;
1137
1138         if (!flags && neg_flags)
1139                 flags = neg_flags | LCME_FL_NEG;
1140
1141         if ((flags && comp_id) || (!flags && !comp_id))
1142                 return -EINVAL;
1143
1144         if (flags) {
1145                 if (flags & ~LCME_KNOWN_FLAGS) {
1146                         fprintf(stderr,
1147                                 "%s setstripe: unknown flags %#x\n",
1148                                 progname, flags);
1149                         return -EINVAL;
1150                 }
1151         } else if (comp_id > LCME_ID_MAX) {
1152                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
1153                         progname, comp_id);
1154                 return -EINVAL;
1155         }
1156
1157         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
1158         if (rc)
1159                 fprintf(stderr,
1160                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
1161                         progname, comp_id, fname, strerror(errno));
1162         return rc;
1163 }
1164
1165 static int lfs_component_add(char *fname, struct llapi_layout *layout)
1166 {
1167         int     rc;
1168
1169         if (layout == NULL)
1170                 return -EINVAL;
1171
1172         rc = llapi_layout_file_comp_add(fname, layout);
1173         if (rc)
1174                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1175                         fname, strerror(errno));
1176         return rc;
1177 }
1178
1179 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1180                                 struct llapi_layout *layout)
1181 {
1182         struct stat     st;
1183         int     fd;
1184
1185         if (layout == NULL)
1186                 return -EINVAL;
1187
1188         fd = lstat(fname, &st);
1189         if (fd == 0 && S_ISDIR(st.st_mode))
1190                 open_flags = O_DIRECTORY | O_RDONLY;
1191
1192         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1193         if (fd < 0)
1194                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1195                         S_ISDIR(st.st_mode) ?
1196                                 "set default composite layout for" :
1197                                 "create composite file",
1198                         fname, strerror(errno));
1199         return fd;
1200 }
1201
1202 static int lfs_migrate(char *name, __u64 migration_flags,
1203                        struct llapi_stripe_param *param,
1204                        struct llapi_layout *layout)
1205 {
1206         struct llapi_layout *existing;
1207         uint64_t dom_new, dom_cur;
1208         int fd = -1;
1209         int fdv = -1;
1210         int rc;
1211
1212         rc = migrate_open_files(name, migration_flags, param, layout,
1213                                 &fd, &fdv);
1214         if (rc < 0)
1215                 goto out;
1216
1217         rc = llapi_layout_dom_size(layout, &dom_new);
1218         if (rc) {
1219                 error_loc = "cannot get new layout DoM size";
1220                 goto out;
1221         }
1222         /* special case for migration to DOM layout*/
1223         existing = llapi_layout_get_by_fd(fd, 0);
1224         if (!existing) {
1225                 error_loc = "cannot get existing layout";
1226                 goto out;
1227         }
1228
1229         rc = llapi_layout_dom_size(existing, &dom_cur);
1230         if (rc) {
1231                 error_loc = "cannot get current layout DoM size";
1232                 goto out;
1233         }
1234
1235         /* if file has DoM layout already then migration is possible to
1236          * the new layout with the same DoM component via swap layout,
1237          * if new layout used bigger DOM size, then mirroring is used
1238          */
1239         if (dom_new > dom_cur) {
1240                 rc = lfs_migrate_to_dom(fd, fdv, name, migration_flags, param,
1241                                         layout);
1242                 if (rc)
1243                         error_loc = "cannot migrate to DOM layout";
1244                 goto out_closed;
1245         }
1246
1247         if (!(migration_flags & MIGRATION_NONBLOCK)) {
1248                 /* Blocking mode (forced if servers do not support file lease).
1249                  * It is also the default mode, since we cannot distinguish
1250                  * between a broken lease and a server that does not support
1251                  * atomic swap/close (LU-6785) */
1252                 rc = migrate_block(fd, fdv);
1253                 goto out;
1254         }
1255
1256         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1257         if (rc < 0) {
1258                 error_loc = "cannot get lease";
1259                 goto out;
1260         }
1261
1262         rc = migrate_nonblock(fd, fdv);
1263         if (rc < 0) {
1264                 llapi_lease_release(fd);
1265                 goto out;
1266         }
1267
1268         /* Atomically put lease, swap layouts and close.
1269          * for a migration we need to check data version on file did
1270          * not change. */
1271         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1272         if (rc < 0) {
1273                 error_loc = "cannot swap layout";
1274                 goto out;
1275         }
1276
1277 out:
1278         if (fd >= 0)
1279                 close(fd);
1280
1281         if (fdv >= 0)
1282                 close(fdv);
1283 out_closed:
1284         if (rc < 0)
1285                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1286                         progname, name, error_loc, strerror(-rc));
1287         else if (migration_flags & MIGRATION_VERBOSE)
1288                 printf("%s\n", name);
1289
1290         return rc;
1291 }
1292
1293 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1294 {
1295         char *name;
1296
1297         if (string == NULL)
1298                 return -EINVAL;
1299
1300         *flags = 0;
1301         *neg_flags = 0;
1302         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1303                 bool found = false;
1304                 int i;
1305
1306                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1307                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1308                         const char *comp_name = comp_flags_table[i].cfn_name;
1309
1310                         if (strcmp(name, comp_name) == 0) {
1311                                 *flags |= comp_flag;
1312                                 found = true;
1313                         } else if (strncmp(name, "^", 1) == 0 &&
1314                                    strcmp(name + 1, comp_name) == 0) {
1315                                 *neg_flags |= comp_flag;
1316                                 found = true;
1317                         }
1318                 }
1319                 if (!found) {
1320                         llapi_printf(LLAPI_MSG_ERROR,
1321                                      "%s: component flag '%s' not supported\n",
1322                                      progname, name);
1323                         return -EINVAL;
1324                 }
1325         }
1326
1327         if (!*flags && !*neg_flags)
1328                 return -EINVAL;
1329
1330         /* don't allow to set and exclude the same flag */
1331         if (*flags & *neg_flags)
1332                 return -EINVAL;
1333
1334         return 0;
1335 }
1336
1337 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1338 {
1339         if (string == NULL)
1340                 return -EINVAL;
1341
1342         *state = 0;
1343         *neg_state = 0;
1344
1345         if (strncmp(string, "^", 1) == 0) {
1346                 *neg_state = llapi_layout_string_flags(string + 1);
1347                 if (*neg_state != 0)
1348                         return 0;
1349         } else {
1350                 *state = llapi_layout_string_flags(string);
1351                 if (*state != 0)
1352                         return 0;
1353         }
1354
1355         llapi_printf(LLAPI_MSG_ERROR,
1356                      "%s: mirrored file state '%s' not supported\n",
1357                      progname, string);
1358         return -EINVAL;
1359 }
1360
1361 /**
1362  * struct mirror_args - Command-line arguments for mirror(s).
1363  * @m_count:  Number of mirrors to be created with this layout.
1364  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1365  * @m_layout: Mirror layout.
1366  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1367  * @m_next:   Point to the next node of the list.
1368  *
1369  * Command-line arguments for mirror(s) will be parsed and stored in
1370  * a linked list that consists of this structure.
1371  */
1372 struct mirror_args {
1373         __u32                   m_count;
1374         __u32                   m_flags;
1375         struct llapi_layout     *m_layout;
1376         const char              *m_file;
1377         struct mirror_args      *m_next;
1378 };
1379
1380 /**
1381  * enum mirror_flags - Flags for extending a mirrored file.
1382  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1383  *             in case the victim file(s) contains the same data as the
1384  *             original mirrored file.
1385  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1386  * @MF_COMP_ID: specified component id instead of mirror id
1387  *
1388  * Flags for extending a mirrored file.
1389  */
1390 enum mirror_flags {
1391         MF_NO_VERIFY    = 0x1,
1392         MF_DESTROY      = 0x2,
1393         MF_COMP_ID      = 0x4,
1394         MF_COMP_POOL    = 0x8,
1395 };
1396
1397 /**
1398  * mirror_create_sanity_check() - Check mirror list.
1399  * @list:  A linked list that stores the mirror arguments.
1400  *
1401  * This function does a sanity check on @list for creating
1402  * a mirrored file.
1403  *
1404  * Return: 0 on success or a negative error code on failure.
1405  */
1406 static int mirror_create_sanity_check(const char *fname,
1407                                       struct mirror_args *list)
1408 {
1409         int rc = 0;
1410         bool has_m_file = false;
1411         bool has_m_layout = false;
1412
1413         if (list == NULL)
1414                 return -EINVAL;
1415
1416         if (fname) {
1417                 struct llapi_layout *layout;
1418
1419                 layout = llapi_layout_get_by_path(fname, 0);
1420                 if (!layout) {
1421                         fprintf(stderr,
1422                                 "error: %s: file '%s' couldn't get layout\n",
1423                                 progname, fname);
1424                         return -ENODATA;
1425                 }
1426
1427                 rc = llapi_layout_sanity(layout, false, true);
1428
1429                 llapi_layout_free(layout);
1430
1431                 if (rc) {
1432                         llapi_layout_sanity_perror(rc);
1433                         return rc;
1434                 }
1435         }
1436
1437         while (list != NULL) {
1438                 if (list->m_file != NULL) {
1439                         has_m_file = true;
1440                         llapi_layout_free(list->m_layout);
1441
1442                         list->m_layout =
1443                                 llapi_layout_get_by_path(list->m_file, 0);
1444                         if (list->m_layout == NULL) {
1445                                 fprintf(stderr,
1446                                         "error: %s: file '%s' has no layout\n",
1447                                         progname, list->m_file);
1448                                 return -ENODATA;
1449                         }
1450                 } else {
1451                         has_m_layout = true;
1452                         if (list->m_layout == NULL) {
1453                                 fprintf(stderr, "error: %s: no mirror layout\n",
1454                                         progname);
1455                                 return -EINVAL;
1456                         }
1457                 }
1458
1459                 rc = llapi_layout_sanity(list->m_layout, false, true);
1460                 if (rc) {
1461                         llapi_layout_sanity_perror(rc);
1462                         return rc;
1463                 }
1464
1465                 list = list->m_next;
1466         }
1467
1468         if (has_m_file && has_m_layout) {
1469                 fprintf(stderr,
1470                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1471                         progname);
1472                 return -EINVAL;
1473         }
1474
1475         return 0;
1476 }
1477
1478 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1479 {
1480         __u32 mirror_flags = *(__u32 *)cbdata;
1481         uint32_t flags;
1482         int rc;
1483
1484         rc = llapi_layout_comp_flags_get(layout, &flags);
1485         if (rc < 0)
1486                 return rc;
1487
1488         if (!flags) {
1489                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1490                 if (rc)
1491                         return rc;
1492         }
1493
1494         return LLAPI_LAYOUT_ITER_CONT;
1495 }
1496
1497 /**
1498  * mirror_create() - Create a mirrored file.
1499  * @fname:        The file to be created.
1500  * @mirror_list:  A linked list that stores the mirror arguments.
1501  *
1502  * This function creates a mirrored file @fname with the mirror(s)
1503  * from @mirror_list.
1504  *
1505  * Return: 0 on success or a negative error code on failure.
1506  */
1507 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1508 {
1509         struct llapi_layout *layout = NULL;
1510         struct mirror_args *cur_mirror = NULL;
1511         uint16_t mirror_count = 0;
1512         int i = 0;
1513         int rc = 0;
1514
1515         rc = mirror_create_sanity_check(NULL, mirror_list);
1516         if (rc)
1517                 return rc;
1518
1519         cur_mirror = mirror_list;
1520         while (cur_mirror != NULL) {
1521                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1522                                                mirror_set_flags,
1523                                                &cur_mirror->m_flags);
1524                 if (rc) {
1525                         rc = -errno;
1526                         fprintf(stderr, "%s: failed to set mirror flags\n",
1527                                 progname);
1528                         goto error;
1529                 }
1530
1531                 for (i = 0; i < cur_mirror->m_count; i++) {
1532                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1533                         if (rc) {
1534                                 rc = -errno;
1535                                 fprintf(stderr, "error: %s: "
1536                                         "merge layout failed: %s\n",
1537                                         progname, strerror(errno));
1538                                 goto error;
1539                         }
1540                 }
1541                 mirror_count += cur_mirror->m_count;
1542                 cur_mirror = cur_mirror->m_next;
1543         }
1544
1545         if (layout == NULL) {
1546                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1547                 return -EINVAL;
1548         }
1549
1550         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1551         if (rc) {
1552                 rc = -errno;
1553                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1554                         progname, strerror(errno));
1555                 goto error;
1556         }
1557
1558         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1559                                   layout);
1560         if (rc >= 0) {
1561                 close(rc);
1562                 rc = 0;
1563         }
1564
1565 error:
1566         llapi_layout_free(layout);
1567         return rc;
1568 }
1569
1570 /**
1571  * Compare files and check lease on @fd.
1572  *
1573  * \retval bytes number of bytes are the same
1574  */
1575 static ssize_t mirror_file_compare(int fd, int fdv)
1576 {
1577         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1578         void *buf;
1579         ssize_t bytes_done = 0;
1580         ssize_t bytes_read = 0;
1581
1582         buf = malloc(buflen * 2);
1583         if (!buf)
1584                 return -ENOMEM;
1585
1586         while (1) {
1587                 if (!llapi_lease_check(fd)) {
1588                         bytes_done = -EBUSY;
1589                         break;
1590                 }
1591
1592                 bytes_read = read(fd, buf, buflen);
1593                 if (bytes_read <= 0)
1594                         break;
1595
1596                 if (bytes_read != read(fdv, buf + buflen, buflen))
1597                         break;
1598
1599                 /* XXX: should compute the checksum on each buffer and then
1600                  * compare checksum to avoid cache collision */
1601                 if (memcmp(buf, buf + buflen, bytes_read))
1602                         break;
1603
1604                 bytes_done += bytes_read;
1605         }
1606
1607         free(buf);
1608
1609         return bytes_done;
1610 }
1611
1612 static int mirror_extend_file(const char *fname, const char *victim_file,
1613                               enum mirror_flags mirror_flags)
1614 {
1615         int fd = -1;
1616         int fdv = -1;
1617         struct stat stbuf;
1618         struct stat stbuf_v;
1619         struct ll_ioc_lease *data = NULL;
1620         int rc;
1621
1622         fd = open(fname, O_RDWR);
1623         if (fd < 0) {
1624                 error_loc = "open source file";
1625                 rc = -errno;
1626                 goto out;
1627         }
1628
1629         fdv = open(victim_file, O_RDWR);
1630         if (fdv < 0) {
1631                 error_loc = "open target file";
1632                 rc = -errno;
1633                 goto out;
1634         }
1635
1636         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1637                 error_loc = "stat source or target file";
1638                 rc = -errno;
1639                 goto out;
1640         }
1641
1642         if (stbuf.st_dev != stbuf_v.st_dev) {
1643                 error_loc = "stat source and target file";
1644                 rc = -EXDEV;
1645                 goto out;
1646         }
1647
1648         /* mirrors should be of the same size */
1649         if (stbuf.st_size != stbuf_v.st_size) {
1650                 error_loc = "file sizes don't match";
1651                 rc = -EINVAL;
1652                 goto out;
1653         }
1654
1655         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1656         if (rc < 0) {
1657                 error_loc = "cannot get lease";
1658                 goto out;
1659         }
1660
1661         if (!(mirror_flags & MF_NO_VERIFY)) {
1662                 ssize_t ret;
1663                 /* mirrors should have the same contents */
1664                 ret = mirror_file_compare(fd, fdv);
1665                 if (ret != stbuf.st_size) {
1666                         error_loc = "file busy or contents don't match";
1667                         rc = ret < 0 ? ret : -EINVAL;
1668                         goto out;
1669                 }
1670         }
1671
1672         /* Get rid of caching pages from clients */
1673         rc = llapi_file_flush(fd);
1674         if (rc < 0) {
1675                 error_loc = "cannot get data version";
1676                 goto out;
1677         }
1678
1679         rc = llapi_file_flush(fdv);
1680         if (rc < 0) {
1681                 error_loc = "cannot get data version";
1682                 goto out;
1683
1684         }
1685
1686         /* Make sure we keep original atime/mtime values */
1687         rc = migrate_copy_timestamps(fd, fdv);
1688         if (rc < 0) {
1689                 error_loc = "cannot copy timestamp";
1690                 goto out;
1691         }
1692
1693         /* Atomically put lease, merge layouts and close. */
1694         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1695         if (!data) {
1696                 error_loc = "memory allocation";
1697                 goto out;
1698         }
1699         data->lil_mode = LL_LEASE_UNLCK;
1700         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1701         data->lil_count = 1;
1702         data->lil_ids[0] = fdv;
1703         rc = llapi_lease_set(fd, data);
1704         if (rc < 0) {
1705                 error_loc = "cannot merge layout";
1706                 goto out;
1707         } else if (rc == 0) {
1708                 rc = -EBUSY;
1709                 error_loc = "lost lease lock";
1710                 goto out;
1711         }
1712         rc = 0;
1713
1714 out:
1715         if (data)
1716                 free(data);
1717         if (fd >= 0)
1718                 close(fd);
1719         if (fdv >= 0)
1720                 close(fdv);
1721         if (!rc)
1722                 (void) unlink(victim_file);
1723         if (rc < 0)
1724                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1725                         progname, fname, error_loc, strerror(-rc));
1726         return rc;
1727 }
1728
1729 static int mirror_extend_layout(char *name, struct llapi_layout *layout)
1730 {
1731         struct ll_ioc_lease *data = NULL;
1732         int fd = -1;
1733         int fdv = -1;
1734         int rc;
1735
1736         rc = migrate_open_files(name, 0, NULL, layout, &fd, &fdv);
1737         if (rc < 0)
1738                 goto out;
1739
1740         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1741         if (rc < 0) {
1742                 error_loc = "cannot get lease";
1743                 goto out;
1744         }
1745
1746         rc = migrate_nonblock(fd, fdv);
1747         if (rc < 0) {
1748                 llapi_lease_release(fd);
1749                 goto out;
1750         }
1751
1752         /* Atomically put lease, merge layouts and close. */
1753         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1754         if (!data) {
1755                 error_loc = "memory allocation";
1756                 goto out;
1757         }
1758         data->lil_mode = LL_LEASE_UNLCK;
1759         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1760         data->lil_count = 1;
1761         data->lil_ids[0] = fdv;
1762         rc = llapi_lease_set(fd, data);
1763         if (rc < 0) {
1764                 error_loc = "cannot merge layout";
1765                 goto out;
1766         } else if (rc == 0) {
1767                 rc = -EBUSY;
1768                 error_loc = "lost lease lock";
1769                 goto out;
1770         }
1771         rc = 0;
1772
1773 out:
1774         if (data)
1775                 free(data);
1776         if (fd >= 0)
1777                 close(fd);
1778         if (fdv >= 0)
1779                 close(fdv);
1780         if (rc < 0)
1781                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1782                         progname, name, error_loc, strerror(-rc));
1783         return rc;
1784 }
1785
1786 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1787                          enum mirror_flags mirror_flags)
1788 {
1789         int rc;
1790
1791         rc = mirror_create_sanity_check(fname, mirror_list);
1792         if (rc)
1793                 return rc;
1794
1795         while (mirror_list) {
1796                 if (mirror_list->m_file != NULL) {
1797                         rc = mirror_extend_file(fname, mirror_list->m_file,
1798                                                 mirror_flags);
1799                 } else {
1800                         __u32 mirror_count = mirror_list->m_count;
1801
1802                         while (mirror_count > 0) {
1803                                 rc = mirror_extend_layout(fname,
1804                                                         mirror_list->m_layout);
1805                                 if (rc)
1806                                         break;
1807
1808                                 --mirror_count;
1809                         }
1810                 }
1811                 if (rc)
1812                         break;
1813
1814                 mirror_list = mirror_list->m_next;
1815         }
1816
1817         return rc;
1818 }
1819
1820 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
1821 {
1822         uint32_t id;
1823         int rc;
1824
1825         rc = llapi_layout_mirror_id_get(layout, &id);
1826         if (rc < 0)
1827                 return rc;
1828
1829         if ((__u16)id == *(__u16 *)cbdata)
1830                 return LLAPI_LAYOUT_ITER_STOP;
1831
1832         return LLAPI_LAYOUT_ITER_CONT;
1833 }
1834
1835 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
1836 {
1837         uint32_t id;
1838         int rc;
1839
1840         rc = llapi_layout_comp_id_get(layout, &id);
1841         if (rc < 0)
1842                 return rc;
1843
1844         if (id == *(__u32 *)cbdata)
1845                 return LLAPI_LAYOUT_ITER_STOP;
1846
1847         return LLAPI_LAYOUT_ITER_CONT;
1848 }
1849
1850 struct pool_to_id_cbdata {
1851         const char *pool;
1852         __u32 id;
1853 };
1854 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata)
1855 {
1856         char buf[LOV_MAXPOOLNAME + 1];
1857         struct pool_to_id_cbdata *d = (void *)cbdata;
1858         uint32_t id;
1859         int rc;
1860
1861         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
1862         if (rc < 0)
1863                 return rc;
1864         if (strcmp(d->pool, buf))
1865                 return LLAPI_LAYOUT_ITER_CONT;
1866
1867         rc = llapi_layout_mirror_id_get(layout, &id);
1868         if (rc < 0)
1869                 return rc;
1870         d->id = id;
1871
1872         return LLAPI_LAYOUT_ITER_STOP;
1873 }
1874
1875 struct collect_ids_data {
1876         __u16   *cid_ids;
1877         int     cid_count;
1878         __u16   cid_exclude;
1879 };
1880
1881 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
1882 {
1883         struct collect_ids_data *cid = cbdata;
1884         uint32_t id;
1885         int rc;
1886
1887         rc = llapi_layout_mirror_id_get(layout, &id);
1888         if (rc < 0)
1889                 return rc;
1890
1891         if ((__u16)id != cid->cid_exclude) {
1892                 int i;
1893
1894                 for (i = 0; i < cid->cid_count; i++) {
1895                         /* already collected the mirror id */
1896                         if (id == cid->cid_ids[i])
1897                                 return LLAPI_LAYOUT_ITER_CONT;
1898                 }
1899                 cid->cid_ids[cid->cid_count] = id;
1900                 cid->cid_count++;
1901         }
1902
1903         return LLAPI_LAYOUT_ITER_CONT;
1904 }
1905
1906 /**
1907  * last_non_stale_mirror() - Check if a mirror is the last non-stale mirror.
1908  * @mirror_id: Mirror id to be checked.
1909  * @layout:    Mirror component list.
1910  *
1911  * This function checks if a mirror with specified @mirror_id is the last
1912  * non-stale mirror of a layout @layout.
1913  *
1914  * Return: true or false.
1915  */
1916 static inline
1917 bool last_non_stale_mirror(__u16 mirror_id, struct llapi_layout *layout)
1918 {
1919         __u16 mirror_ids[128] = { 0 };
1920         struct collect_ids_data cid = { .cid_ids = mirror_ids,
1921                                         .cid_count = 0,
1922                                         .cid_exclude = mirror_id, };
1923         int i;
1924
1925         llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
1926
1927         for (i = 0; i < cid.cid_count; i++) {
1928                 struct llapi_resync_comp comp_array[1024] = { { 0 } };
1929                 int comp_size = 0;
1930
1931                 comp_size = llapi_mirror_find_stale(layout, comp_array,
1932                                                     ARRAY_SIZE(comp_array),
1933                                                     &mirror_ids[i], 1);
1934                 if (comp_size == 0)
1935                         return false;
1936         }
1937
1938         return true;
1939 }
1940
1941 static int mirror_split(const char *fname, __u32 id, const char *pool,
1942                         enum mirror_flags mflags, const char *victim_file)
1943 {
1944         struct llapi_layout *layout;
1945         char parent[PATH_MAX];
1946         char victim[PATH_MAX];
1947         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
1948         char *ptr;
1949         struct ll_ioc_lease *data;
1950         uint16_t mirror_count;
1951         int mdt_index;
1952         int fd, fdv;
1953         int rc;
1954
1955         /* check fname contains mirror with mirror_id/comp_id */
1956         layout = llapi_layout_get_by_path(fname, 0);
1957         if (!layout) {
1958                 fprintf(stderr,
1959                         "error %s: file '%s' couldn't get layout\n",
1960                         progname, fname);
1961                 return -EINVAL;
1962         }
1963
1964         rc = llapi_layout_sanity(layout, false, true);
1965         if (rc) {
1966                 llapi_layout_sanity_perror(rc);
1967                 goto free_layout;
1968         }
1969
1970         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
1971         if (rc) {
1972                 fprintf(stderr,
1973                         "error %s: file '%s' couldn't get mirror count\n",
1974                         progname, fname);
1975                 goto free_layout;
1976         }
1977         if (mirror_count < 2) {
1978                 fprintf(stderr,
1979                         "error %s: file '%s' has %d component, cannot split\n",
1980                         progname, fname, mirror_count);
1981                 goto free_layout;
1982         }
1983
1984         if (mflags & MF_COMP_POOL) {
1985                 struct pool_to_id_cbdata data = { .pool = pool };
1986
1987                 rc = llapi_layout_comp_iterate(layout, find_comp_id_by_pool,
1988                                                &data);
1989                 id = data.id;
1990         } else if (mflags & MF_COMP_ID) {
1991                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
1992                 id = mirror_id_of(id);
1993         } else {
1994                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
1995         }
1996         if (rc < 0) {
1997                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
1998                         progname, fname);
1999                 goto free_layout;
2000         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
2001                 fprintf(stderr,
2002                      "error %s: file '%s' does not contain mirror with id %u\n",
2003                         progname, fname, id);
2004                 goto free_layout;
2005         }
2006
2007         fd = open(fname, O_RDWR);
2008         if (fd < 0) {
2009                 fprintf(stderr,
2010                         "error %s: open file '%s' failed: %s\n",
2011                         progname, fname, strerror(errno));
2012                 goto free_layout;
2013         }
2014
2015         /* get victim file directory pathname */
2016         if (strlen(fname) > sizeof(parent) - 1) {
2017                 fprintf(stderr, "error %s: file name of '%s' too long\n",
2018                         progname, fname);
2019                 rc = -ERANGE;
2020                 goto close_fd;
2021         }
2022         strncpy(parent, fname, sizeof(parent));
2023         ptr = strrchr(parent, '/');
2024         if (ptr == NULL) {
2025                 if (getcwd(parent, sizeof(parent)) == NULL) {
2026                         fprintf(stderr, "error %s: getcwd failed: %s\n",
2027                                 progname, strerror(errno));
2028                         rc = -errno;
2029                         goto close_fd;
2030                 }
2031         } else {
2032                 if (ptr == parent)
2033                         ptr = parent + 1;
2034                 *ptr = '\0';
2035         }
2036
2037         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
2038         if (rc < 0) {
2039                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
2040                         progname, fname);
2041                 goto close_fd;
2042         }
2043
2044         if (victim_file == NULL) {
2045                 /* use a temp file to store the splitted layout */
2046                 if (mflags & MF_DESTROY) {
2047                         if (last_non_stale_mirror(id, layout)) {
2048                                 rc = -EUCLEAN;
2049                                 fprintf(stderr,
2050                                         "%s: cannot destroy the last non-stale mirror of file '%s'\n",
2051                                         progname, fname);
2052                                 goto close_fd;
2053                         }
2054
2055                         fdv = llapi_create_volatile_idx(parent, mdt_index,
2056                                                         O_LOV_DELAY_CREATE);
2057                 } else {
2058                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
2059                                  fname, id);
2060                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
2061                 }
2062         } else {
2063                 /* user specified victim file */
2064                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
2065         }
2066
2067         if (fdv < 0) {
2068                 fprintf(stderr,
2069                         "error %s: create victim file failed: %s\n",
2070                         progname, strerror(errno));
2071                 goto close_fd;
2072         }
2073
2074         /* get lease lock of fname */
2075         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
2076         if (rc < 0) {
2077                 fprintf(stderr,
2078                         "error %s: cannot get lease of file '%s': %d\n",
2079                         progname, fname, rc);
2080                 goto close_victim;
2081         }
2082
2083         /* Atomatically put lease, split layouts and close. */
2084         data = malloc(offsetof(typeof(*data), lil_ids[2]));
2085         if (!data) {
2086                 rc = -ENOMEM;
2087                 goto close_victim;
2088         }
2089
2090         data->lil_mode = LL_LEASE_UNLCK;
2091         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
2092         data->lil_count = 2;
2093         data->lil_ids[0] = fdv;
2094         data->lil_ids[1] = id;
2095         rc = llapi_lease_set(fd, data);
2096         if (rc <= 0) {
2097                 if (rc == 0) /* lost lease lock */
2098                         rc = -EBUSY;
2099                 fprintf(stderr,
2100                         "error %s: cannot split '%s': %s\n",
2101                         progname, fname, strerror(-rc));
2102         } else {
2103                 rc = 0;
2104         }
2105         free(data);
2106
2107 close_victim:
2108         close(fdv);
2109 close_fd:
2110         close(fd);
2111 free_layout:
2112         llapi_layout_free(layout);
2113         return rc;
2114 }
2115
2116 static inline
2117 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
2118                            __u16 *mirror_ids, int ids_nr);
2119
2120 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
2121                               __u64 migration_flags,
2122                               struct llapi_stripe_param *param,
2123                               struct llapi_layout *layout)
2124 {
2125         struct ll_ioc_lease *data = NULL;
2126         int rc;
2127
2128         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
2129         if (rc < 0) {
2130                 error_loc = "cannot get lease";
2131                 goto out_close;
2132         }
2133
2134         /* Atomically put lease, merge layouts, resync and close. */
2135         data = calloc(1, offsetof(typeof(*data), lil_ids[1024]));
2136         if (!data) {
2137                 error_loc = "memory allocation";
2138                 goto out_close;
2139         }
2140         data->lil_mode = LL_LEASE_UNLCK;
2141         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
2142         data->lil_count = 1;
2143         data->lil_ids[0] = fdv;
2144         rc = llapi_lease_set(fd, data);
2145         if (rc < 0) {
2146                 error_loc = "cannot merge layout";
2147                 goto out_close;
2148         } else if (rc == 0) {
2149                 rc = -EBUSY;
2150                 error_loc = "lost lease lock";
2151                 goto out_close;
2152         }
2153         close(fd);
2154         close(fdv);
2155
2156         rc = lfs_mirror_resync_file(name, data, NULL, 0);
2157         if (rc) {
2158                 error_loc = "cannot resync file";
2159                 goto out;
2160         }
2161
2162         /* delete first mirror now */
2163         rc = mirror_split(name, 1, NULL, MF_DESTROY, NULL);
2164         if (rc < 0)
2165                 error_loc = "cannot delete old layout";
2166         goto out;
2167
2168 out_close:
2169         close(fd);
2170         close(fdv);
2171 out:
2172         if (rc < 0)
2173                 fprintf(stderr, "error: %s: %s: %s: %s\n",
2174                         progname, name, error_loc, strerror(-rc));
2175         else if (migration_flags & MIGRATION_VERBOSE)
2176                 printf("%s\n", name);
2177         if (data)
2178                 free(data);
2179         return rc;
2180 }
2181
2182 /**
2183  * Parse a string containing an target index list into an array of integers.
2184  *
2185  * The input string contains a comma delimited list of individual
2186  * indices and ranges, for example "1,2-4,7". Add the indices into the
2187  * \a tgts array and remove duplicates.
2188  *
2189  * \param[out] tgts             array to store indices in
2190  * \param[in] size              size of \a tgts array
2191  * \param[in] offset            starting index in \a tgts
2192  * \param[in] arg               string containing OST index list
2193  * \param[in/out] overstriping  index list may contain duplicates
2194  *
2195  * \retval positive    number of indices in \a tgts
2196  * \retval -EINVAL     unable to parse \a arg
2197  */
2198 static int parse_targets(__u32 *tgts, int size, int offset, char *arg,
2199                          unsigned long long *pattern)
2200 {
2201         int rc;
2202         int nr = offset;
2203         int slots = size - offset;
2204         char *ptr = NULL;
2205         bool overstriped = false;
2206         bool end_of_loop;
2207
2208         if (arg == NULL)
2209                 return -EINVAL;
2210
2211         end_of_loop = false;
2212         while (!end_of_loop) {
2213                 int start_index = 0;
2214                 int end_index = 0;
2215                 int i;
2216                 char *endptr = NULL;
2217
2218                 rc = -EINVAL;
2219
2220                 ptr = strchrnul(arg, ',');
2221
2222                 end_of_loop = *ptr == '\0';
2223                 *ptr = '\0';
2224
2225                 start_index = strtol(arg, &endptr, 0);
2226                 if (endptr == arg) /* no data at all */
2227                         break;
2228                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
2229                         break;
2230
2231                 end_index = start_index;
2232                 if (*endptr == '-') {
2233                         end_index = strtol(endptr + 1, &endptr, 0);
2234                         if (*endptr != '\0')
2235                                 break;
2236                         if (end_index < start_index)
2237                                 break;
2238                 }
2239
2240                 for (i = start_index; i <= end_index && slots > 0; i++) {
2241                         int j;
2242
2243                         /* remove duplicate */
2244                         for (j = 0; j < offset; j++) {
2245                                 if (tgts[j] == i && pattern &&
2246                                     *pattern == LLAPI_LAYOUT_OVERSTRIPING)
2247                                         overstriped = true;
2248                                 else if (tgts[j] == i)
2249                                         return -EINVAL;
2250                         }
2251
2252                         j = offset;
2253
2254                         if (j == offset) { /* check complete */
2255                                 tgts[nr++] = i;
2256                                 --slots;
2257                         }
2258                 }
2259
2260                 if (slots == 0 && i < end_index)
2261                         break;
2262
2263                 *ptr = ',';
2264                 arg = ++ptr;
2265                 offset = nr;
2266                 rc = 0;
2267         }
2268         if (!end_of_loop && ptr != NULL)
2269                 *ptr = ',';
2270
2271         if (!overstriped && pattern)
2272                 *pattern = LLAPI_LAYOUT_DEFAULT;
2273
2274         return rc < 0 ? rc : nr;
2275 }
2276
2277 struct lfs_setstripe_args {
2278         unsigned long long       lsa_comp_end;
2279         unsigned long long       lsa_stripe_size;
2280         unsigned long long       lsa_extension_size;
2281         long long                lsa_stripe_count;
2282         long long                lsa_stripe_off;
2283         __u32                    lsa_comp_flags;
2284         __u32                    lsa_comp_neg_flags;
2285         unsigned long long       lsa_pattern;
2286         unsigned int             lsa_mirror_count;
2287         int                      lsa_nr_tgts;
2288         bool                     lsa_first_comp;
2289         bool                     lsa_extension_comp;
2290         __u32                   *lsa_tgts;
2291         char                    *lsa_pool_name;
2292 };
2293
2294 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2295 {
2296         unsigned int mirror_count = lsa->lsa_mirror_count;
2297         bool first_comp = lsa->lsa_first_comp;
2298
2299         memset(lsa, 0, sizeof(*lsa));
2300
2301         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2302         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2303         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2304         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2305         lsa->lsa_pool_name = NULL;
2306
2307         lsa->lsa_mirror_count = mirror_count;
2308         lsa->lsa_first_comp = first_comp;
2309 }
2310
2311 /**
2312  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2313  * @lsa: Stripe options to be initialized and inherited.
2314  *
2315  * This function initializes stripe options in @lsa and inherit
2316  * stripe_size, stripe_count and OST pool_name options.
2317  *
2318  * Return: void.
2319  */
2320 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2321 {
2322         unsigned long long stripe_size;
2323         long long stripe_count;
2324         char *pool_name = NULL;
2325
2326         stripe_size = lsa->lsa_stripe_size;
2327         stripe_count = lsa->lsa_stripe_count;
2328         pool_name = lsa->lsa_pool_name;
2329
2330         setstripe_args_init(lsa);
2331
2332         lsa->lsa_stripe_size = stripe_size;
2333         lsa->lsa_stripe_count = stripe_count;
2334         lsa->lsa_pool_name = pool_name;
2335 }
2336
2337 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2338 {
2339         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2340                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2341                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2342                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2343                 lsa->lsa_comp_end != 0);
2344 }
2345
2346 /**
2347  * comp_args_to_layout() - Create or extend a composite layout.
2348  * @composite:       Pointer to the composite layout.
2349  * @lsa:             Stripe options for the new component.
2350  *
2351  * This function creates or extends a composite layout by adding a new
2352  * component with stripe options from @lsa.
2353  *
2354  * Return: 0 on success or an error code on failure.
2355  */
2356 static int comp_args_to_layout(struct llapi_layout **composite,
2357                                struct lfs_setstripe_args *lsa,
2358                                bool set_extent)
2359 {
2360         struct llapi_layout *layout = *composite;
2361         uint64_t prev_end = 0;
2362         uint64_t size;
2363         int i = 0, rc;
2364
2365 new_comp:
2366         if (layout == NULL) {
2367                 layout = llapi_layout_alloc();
2368                 if (layout == NULL) {
2369                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2370                                 strerror(errno));
2371                         errno = ENOMEM;
2372                         return -1;
2373                 }
2374                 *composite = layout;
2375                 lsa->lsa_first_comp = true;
2376         } else {
2377                 uint64_t start;
2378
2379                 /* Get current component extent, current component
2380                  * must be the tail component. */
2381                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2382                 if (rc) {
2383                         fprintf(stderr, "Get comp extent failed. %s\n",
2384                                 strerror(errno));
2385                         return rc;
2386                 }
2387
2388                 if (lsa->lsa_first_comp)
2389                         prev_end = 0;
2390
2391                 if (lsa->lsa_first_comp)
2392                         rc = llapi_layout_add_first_comp(layout);
2393                 else
2394                         rc = llapi_layout_comp_add(layout);
2395                 if (rc) {
2396                         fprintf(stderr, "Add component failed. %s\n",
2397                                 strerror(errno));
2398                         return rc;
2399                 }
2400         }
2401
2402         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2403         if (rc) {
2404                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2405                         lsa->lsa_comp_flags, strerror(errno));
2406                 return rc;
2407         }
2408
2409         if (set_extent) {
2410                 uint64_t comp_end = lsa->lsa_comp_end;
2411
2412                 /* The extendable component is 0-length, so it can be removed
2413                  * if there is insufficient space to extend it. */
2414                 if (lsa->lsa_extension_comp)
2415                         comp_end = prev_end;
2416
2417                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2418                                                   comp_end);
2419                 if (rc) {
2420                         fprintf(stderr, "Set extent [%lu, %lu) failed. %s\n",
2421                                 prev_end, comp_end, strerror(errno));
2422                         return rc;
2423                 }
2424         }
2425         /* reset lsa_first_comp */
2426         lsa->lsa_first_comp = false;
2427
2428         /* Data-on-MDT component setting */
2429         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2430                 /* In case of Data-on-MDT patterns the only extra option
2431                  * applicable is stripe size option. */
2432                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2433                         fprintf(stderr, "Option 'stripe-count' can't be "
2434                                 "specified with Data-on-MDT component: %lld\n",
2435                                 lsa->lsa_stripe_count);
2436                         errno = EINVAL;
2437                         return -1;
2438                 }
2439                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT) {
2440                         fprintf(stderr, "Option 'stripe-size' can't be "
2441                                 "specified with Data-on-MDT component: %llu\n",
2442                                 lsa->lsa_stripe_size);
2443                         errno = EINVAL;
2444                         return -1;
2445                 }
2446                 if (lsa->lsa_nr_tgts != 0) {
2447                         fprintf(stderr, "Option 'ost-list' can't be specified "
2448                                 "with Data-on-MDT component: '%i'\n",
2449                                 lsa->lsa_nr_tgts);
2450                         errno = EINVAL;
2451                         return -1;
2452                 }
2453                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2454                         fprintf(stderr, "Option 'stripe-offset' can't be "
2455                                 "specified with Data-on-MDT component: %lld\n",
2456                                 lsa->lsa_stripe_off);
2457                         errno = EINVAL;
2458                         return -1;
2459                 }
2460                 if (lsa->lsa_pool_name != 0) {
2461                         fprintf(stderr, "Option 'pool' can't be specified "
2462                                 "with Data-on-MDT component: '%s'\n",
2463                                 lsa->lsa_pool_name);
2464                         errno = EINVAL;
2465                         return -1;
2466                 }
2467
2468                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2469                 if (rc) {
2470                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2471                                 lsa->lsa_pattern,
2472                                 strerror(errno));
2473                         return rc;
2474                 }
2475                 /* Data-on-MDT component has always single stripe up to end */
2476                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2477         } else if (lsa->lsa_pattern == LLAPI_LAYOUT_OVERSTRIPING) {
2478                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2479                 if (rc) {
2480                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2481                                 lsa->lsa_pattern,
2482                                 strerror(errno));
2483                         return rc;
2484                 }
2485         }
2486
2487         size = lsa->lsa_comp_flags & LCME_FL_EXTENSION ?
2488                 lsa->lsa_extension_size : lsa->lsa_stripe_size;
2489
2490         if (lsa->lsa_comp_flags & LCME_FL_EXTENSION)
2491                 rc = llapi_layout_extension_size_set(layout, size);
2492         else
2493                 rc = llapi_layout_stripe_size_set(layout, size);
2494
2495         if (rc) {
2496                 fprintf(stderr, "Set stripe size %lu failed: %s\n",
2497                         size, strerror(errno));
2498                 return rc;
2499         }
2500
2501         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2502         if (rc) {
2503                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2504                         lsa->lsa_stripe_count, strerror(errno));
2505                 return rc;
2506         }
2507
2508         if (lsa->lsa_pool_name != NULL) {
2509                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2510                 if (rc) {
2511                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2512                                 lsa->lsa_pool_name, strerror(errno));
2513                         return rc;
2514                 }
2515         } else {
2516                 rc = llapi_layout_pool_name_set(layout, "");
2517                 if (rc) {
2518                         fprintf(stderr, "Clear pool name failed: %s\n",
2519                                 strerror(errno));
2520                         return rc;
2521                 }
2522         }
2523
2524         if (lsa->lsa_nr_tgts > 0) {
2525                 if (lsa->lsa_stripe_count > 0 &&
2526                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2527                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2528                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2529                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2530                                 lsa->lsa_stripe_count,
2531                                 lsa->lsa_nr_tgts);
2532                         errno = EINVAL;
2533                         return -1;
2534                 }
2535                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2536                         rc = llapi_layout_ost_index_set(layout, i,
2537                                                         lsa->lsa_tgts[i]);
2538                         if (rc)
2539                                 break;
2540                 }
2541         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2542                    lsa->lsa_stripe_off != -1) {
2543                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2544         }
2545         if (rc) {
2546                 fprintf(stderr, "Set ost index %d failed. %s\n",
2547                         i, strerror(errno));
2548                 return rc;
2549         }
2550
2551         /* Create the second, virtual component of extension space */
2552         if (lsa->lsa_extension_comp) {
2553                 lsa->lsa_comp_flags |= LCME_FL_EXTENSION;
2554                 lsa->lsa_extension_comp = false;
2555                 goto new_comp;
2556         }
2557
2558         return rc;
2559 }
2560
2561 static int build_component(struct llapi_layout **layout,
2562                            struct lfs_setstripe_args *lsa, bool set_extent)
2563 {
2564         int rc;
2565
2566         rc = comp_args_to_layout(layout, lsa, set_extent);
2567         if (rc)
2568                 return rc;
2569
2570         if (lsa->lsa_mirror_count > 0) {
2571                 rc = llapi_layout_mirror_count_set(*layout,
2572                                                    lsa->lsa_mirror_count);
2573                 if (rc)
2574                         return rc;
2575
2576                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2577                 if (rc)
2578                         return rc;
2579                 lsa->lsa_mirror_count = 0;
2580         }
2581
2582         return rc;
2583 }
2584
2585 static int build_layout_from_yaml_node(struct cYAML *node,
2586                                        struct llapi_layout **layout,
2587                                        struct lfs_setstripe_args *lsa,
2588                                        __u32 *osts)
2589 {
2590         char *string;
2591         int rc = 0;
2592
2593         while (node) {
2594                 if (node->cy_type == CYAML_TYPE_OBJECT) {
2595                         /* go deep to sub blocks */
2596                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2597                                                          lsa, osts);
2598                         if (rc)
2599                                 return rc;
2600                 } else {
2601                         if (node->cy_string == NULL)
2602                                 return -EINVAL;
2603
2604                         string = node->cy_string;
2605                         /* skip leading lmm_ if present, to simplify parsing */
2606                         if (strncmp(string, "lmm_", 4) == 0)
2607                                 string += 4;
2608
2609                         if (node->cy_type == CYAML_TYPE_STRING) {
2610                                 if (!strcmp(string, "lcme_extent.e_end")) {
2611                                         if (!strcmp(node->cy_valuestring, "EOF") ||
2612                                             !strcmp(node->cy_valuestring, "eof"))
2613                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2614                                 } else if (!strcmp(string, "pool")) {
2615                                         lsa->lsa_pool_name = node->cy_valuestring;
2616                                 } else if (!strcmp(string, "pattern")) {
2617                                         if (!strcmp(node->cy_valuestring, "mdt"))
2618                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2619                                         if (!strcmp(node->cy_valuestring,
2620                                                     "raid0,overstriped"))
2621                                                 lsa->lsa_pattern =
2622                                                         LLAPI_LAYOUT_OVERSTRIPING;
2623                                 } else if (!strcmp(string, "lcme_flags")) {
2624                                         rc = comp_str2flags(node->cy_valuestring,
2625                                                             &lsa->lsa_comp_flags,
2626                                                             &lsa->lsa_comp_neg_flags);
2627                                         if (rc)
2628                                                 return rc;
2629                                         /* Only template flags have meaning in
2630                                          * the layout for a new file
2631                                          */
2632                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
2633                                 }
2634                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2635                                 if (!strcmp(string, "lcm_mirror_count")) {
2636                                         lsa->lsa_mirror_count = node->cy_valueint;
2637                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
2638                                         if (node->cy_valueint != 0 || *layout != NULL) {
2639                                                 rc = build_component(layout, lsa, true);
2640                                                 if (rc)
2641                                                         return rc;
2642                                         }
2643
2644                                         if (node->cy_valueint == 0)
2645                                                 lsa->lsa_first_comp = true;
2646
2647                                         /* initialize lsa */
2648                                         setstripe_args_init(lsa);
2649                                         lsa->lsa_tgts = osts;
2650                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
2651                                         if (node->cy_valueint == -1)
2652                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2653                                         else
2654                                                 lsa->lsa_comp_end = node->cy_valueint;
2655                                 } else if (!strcmp(string, "stripe_count")) {
2656                                         lsa->lsa_stripe_count = node->cy_valueint;
2657                                 } else if (!strcmp(string, "stripe_size")) {
2658                                         lsa->lsa_stripe_size = node->cy_valueint;
2659                                 } else if (!strcmp(string, "stripe_offset")) {
2660                                         lsa->lsa_stripe_off = node->cy_valueint;
2661                                 } else if (!strcmp(string, "l_ost_idx")) {
2662                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
2663                                         lsa->lsa_nr_tgts++;
2664                                 }
2665                         }
2666                 }
2667                 node = node->cy_next;
2668         }
2669
2670         return rc;
2671 }
2672
2673 static int lfs_comp_create_from_yaml(char *template,
2674                                      struct llapi_layout **layout,
2675                                      struct lfs_setstripe_args *lsa,
2676                                      __u32 *osts)
2677 {
2678         struct cYAML *tree = NULL, *err_rc = NULL;
2679         int rc = 0;
2680
2681         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
2682         if (!tree) {
2683                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
2684                         progname, template);
2685                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
2686                                   "can't parse", &err_rc);
2687                 cYAML_print_tree2file(stderr, err_rc);
2688                 cYAML_free_tree(err_rc);
2689                 rc = -EINVAL;
2690                 goto err;
2691         }
2692
2693         /* initialize lsa for plain file */
2694         setstripe_args_init(lsa);
2695         lsa->lsa_tgts = osts;
2696
2697         rc = build_layout_from_yaml_node(tree, layout, lsa, osts);
2698         if (rc) {
2699                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
2700                         progname, template);
2701                 goto err;
2702         } else {
2703                 rc = build_component(layout, lsa, *layout != NULL);
2704         }
2705         /* clean clean lsa */
2706         setstripe_args_init(lsa);
2707
2708 err:
2709         if (tree)
2710                 cYAML_free_tree(tree);
2711         return rc;
2712 }
2713
2714 /**
2715  * Get the extension size from the next (SEL) component and extend the
2716  * current component on it. The start of the next component is to be
2717  * adjusted as well.
2718  *
2719  * \param[in] layout    the current layout
2720  * \param[in] start     the start of the current component
2721  * \param[in,out] end   the end of the current component
2722  * \param[in] offset    the offset to adjust the end position to instead of
2723  *                      extension size
2724  *
2725  * \retval 0            - extended successfully
2726  * \retval < 0          - error
2727  */
2728 static int layout_extend_comp(struct llapi_layout *layout,
2729                               uint64_t start, uint64_t *end,
2730                               uint64_t offset)
2731 {
2732         uint64_t size, next_start, next_end;
2733         int rc;
2734
2735         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_NEXT);
2736         if (rc < 0) {
2737                 fprintf(stderr, "%s setstripe: cannot move component cursor: "
2738                         "%s\n", progname, strerror(errno));
2739                 return rc;
2740         }
2741
2742         /* Even if the @size will not be used below, this will fail if
2743          * this is not a SEL component - a good confirmation we are
2744          * working on right components. */
2745         rc = llapi_layout_extension_size_get(layout, &size);
2746         if (rc < 0) {
2747                 fprintf(stderr, "%s setstripe: cannot get component ext size: "
2748                         "%s\n", progname, strerror(errno));
2749                 return rc;
2750         }
2751
2752         rc = llapi_layout_comp_extent_get(layout, &next_start, &next_end);
2753         if (rc) {
2754                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2755                         progname, strerror(errno));
2756                 return rc;
2757         }
2758
2759         next_start += offset ?: size;
2760         rc = llapi_layout_comp_extent_set(layout, next_start, next_end);
2761         if (rc) {
2762                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
2763                         progname, strerror(errno));
2764                 return rc;
2765         }
2766
2767         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_PREV);
2768         if (rc < 0) {
2769                 fprintf(stderr, "%s setstripe: cannot move component cursor: "
2770                         "%s\n", progname, strerror(errno));
2771                 return rc;
2772         }
2773
2774         *end += offset ?: size;
2775         rc = llapi_layout_comp_extent_set(layout, start, *end);
2776         if (rc) {
2777                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
2778                         progname, strerror(errno));
2779                 return rc;
2780         }
2781
2782         return 0;
2783 }
2784
2785 /**
2786  * In 'lfs setstripe --component-add' mode, we need to fetch the extent
2787  * end of the last component in the existing file, and adjust the
2788  * first extent start of the components to be added accordingly.
2789  *
2790  * In the create mode, we need to check if the first component is an extendable
2791  * SEL component and extend its length to the extension size (first component
2792  * of the PFL file is initialised at the create time, cannot be 0-lenght.
2793  */
2794 static int layout_adjust_first_extent(char *fname, struct llapi_layout *layout,
2795                                       bool comp_add)
2796 {
2797         struct llapi_layout *head;
2798         uint64_t start = 0, prev_end = 0;
2799         uint64_t end;
2800         int rc, ret = 0;
2801
2802         if (layout == NULL)
2803                 return 0;
2804
2805         errno = 0;
2806         while (comp_add) {
2807                 head = llapi_layout_get_by_path(fname, 0);
2808                 if (head == NULL) {
2809                         fprintf(stderr,
2810                                 "%s setstripe: cannot read layout from '%s': "
2811                                 "%s\n", progname, fname, strerror(errno));
2812                         return -EINVAL;
2813                 } else if (errno == ENODATA) {
2814                         /* file without LOVEA, this component-add will be turned
2815                          * into a component-create. */
2816                         llapi_layout_free(head);
2817                         ret = -ENODATA;
2818
2819                         /* the new layout will be added to an empty one, it
2820                          * still needs to be adjusted below */
2821                         comp_add = 0;
2822                         break;
2823                 } else if (!llapi_layout_is_composite(head)) {
2824                         fprintf(stderr, "%s setstripe: '%s' not a composite "
2825                                 "file\n", progname, fname);
2826                         llapi_layout_free(head);
2827                         return -EINVAL;
2828                 }
2829
2830                 rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
2831                 if (rc) {
2832                         fprintf(stderr, "%s setstripe: cannot get prev "
2833                                 "extent: %s\n", progname, strerror(errno));
2834                         llapi_layout_free(head);
2835                         return rc;
2836                 }
2837
2838                 llapi_layout_free(head);
2839                 break;
2840         }
2841
2842         /* Make sure we use the first component of the layout to be added. */
2843         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
2844         if (rc < 0) {
2845                 fprintf(stderr,
2846                         "%s setstripe: cannot move component cursor: %s\n",
2847                         progname, strerror(errno));
2848                 return rc;
2849         }
2850
2851         rc = llapi_layout_comp_extent_get(layout, &start, &end);
2852         if (rc) {
2853                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2854                         progname, strerror(errno));
2855                 return rc;
2856         }
2857
2858         if (start == 0 && end == 0) {
2859                 rc = layout_extend_comp(layout, start, &end,
2860                                         comp_add ? prev_end : 0);
2861                 if (rc)
2862                         return rc;
2863         }
2864
2865         if (start > prev_end || end < prev_end) {
2866                 fprintf(stderr, "%s setstripe: first extent [%lu, %lu) not "
2867                         "adjacent with extent end %lu\n",
2868                         progname, start, end, prev_end);
2869                 return -EINVAL;
2870         }
2871
2872         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
2873         if (rc) {
2874                 fprintf(stderr, "%s setstripe: cannot set component extent "
2875                         "[%lu, %lu): %s\n",
2876                         progname, prev_end, end, strerror(errno));
2877                 return rc;
2878         }
2879
2880         return ret;
2881 }
2882
2883 static int mirror_adjust_first_extents(struct mirror_args *list)
2884 {
2885         int rc = 0;
2886
2887         if (list == NULL)
2888                 return 0;
2889
2890         while (list != NULL) {
2891                 rc = layout_adjust_first_extent(NULL, list->m_layout, false);
2892                 if (rc)
2893                         break;
2894                 list = list->m_next;
2895         }
2896
2897         return rc;
2898 }
2899
2900 static inline bool arg_is_eof(char *arg)
2901 {
2902         return !strncmp(arg, "-1", strlen("-1")) ||
2903                !strncmp(arg, "EOF", strlen("EOF")) ||
2904                !strncmp(arg, "eof", strlen("eof"));
2905 }
2906
2907 /**
2908  * lfs_mirror_alloc() - Allocate a mirror argument structure.
2909  *
2910  * Return: Valid mirror_args pointer on success and
2911  *         NULL if memory allocation fails.
2912  */
2913 static struct mirror_args *lfs_mirror_alloc(void)
2914 {
2915         struct mirror_args *mirror = NULL;
2916
2917         while (1) {
2918                 mirror = calloc(1, sizeof(*mirror));
2919                 if (mirror != NULL)
2920                         break;
2921
2922                 sleep(1);
2923         }
2924
2925         return mirror;
2926 }
2927
2928 /**
2929  * lfs_mirror_free() - Free memory allocated for a mirror argument
2930  *                     structure.
2931  * @mirror: Previously allocated mirror argument structure by
2932  *          lfs_mirror_alloc().
2933  *
2934  * Free memory allocated for @mirror.
2935  *
2936  * Return: void.
2937  */
2938 static void lfs_mirror_free(struct mirror_args *mirror)
2939 {
2940         if (mirror->m_layout != NULL)
2941                 llapi_layout_free(mirror->m_layout);
2942         free(mirror);
2943 }
2944
2945 /**
2946  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
2947  * @mirror_list: Previously allocated mirror list.
2948  *
2949  * Free memory allocated for @mirror_list.
2950  *
2951  * Return: void.
2952  */
2953 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
2954 {
2955         struct mirror_args *next_mirror = NULL;
2956
2957         while (mirror_list != NULL) {
2958                 next_mirror = mirror_list->m_next;
2959                 lfs_mirror_free(mirror_list);
2960                 mirror_list = next_mirror;
2961         }
2962 }
2963
2964 enum {
2965         LFS_POOL_OPT = 3,
2966         LFS_COMP_COUNT_OPT,
2967         LFS_COMP_START_OPT,
2968         LFS_COMP_FLAGS_OPT,
2969         LFS_COMP_DEL_OPT,
2970         LFS_COMP_SET_OPT,
2971         LFS_COMP_ADD_OPT,
2972         LFS_COMP_NO_VERIFY_OPT,
2973         LFS_PROJID_OPT,
2974         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
2975         LFS_MIRROR_ID_OPT,
2976         LFS_MIRROR_STATE_OPT,
2977         LFS_LAYOUT_COPY,
2978         LFS_MIRROR_INDEX_OPT,
2979         LFS_LAYOUT_FOREIGN_OPT,
2980         LFS_MODE_OPT,
2981         LFS_NEWERXY_OPT,
2982 };
2983
2984 /* functions */
2985 static int lfs_setstripe_internal(int argc, char **argv,
2986                                   enum setstripe_origin opc)
2987 {
2988         struct lfs_setstripe_args        lsa = { 0 };
2989         struct llapi_stripe_param       *param = NULL;
2990         struct find_param                migrate_mdt_param = {
2991                 .fp_max_depth = -1,
2992                 .fp_mdt_index = -1,
2993         };
2994         char                            *fname;
2995         int                              result = 0;
2996         int                              result2 = 0;
2997         char                            *end;
2998         int                              c;
2999         int                              delete = 0;
3000         unsigned long long               size_units = 1;
3001         bool                             migrate_mode = false;
3002         bool                             migrate_mdt_mode = false;
3003         bool                             setstripe_mode = false;
3004         bool                             migration_block = false;
3005         __u64                            migration_flags = 0;
3006         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
3007         int                              comp_del = 0, comp_set = 0;
3008         int                              comp_add = 0;
3009         __u32                            comp_id = 0;
3010         struct llapi_layout             *layout = NULL;
3011         struct llapi_layout             **lpp = &layout;
3012         bool                             mirror_mode = false;
3013         bool                             has_m_file = false;
3014         __u32                            mirror_count = 0;
3015         enum mirror_flags                mirror_flags = 0;
3016         struct mirror_args              *mirror_list = NULL;
3017         struct mirror_args              *new_mirror = NULL;
3018         struct mirror_args              *last_mirror = NULL;
3019         __u16                            mirror_id = 0;
3020         char                             cmd[PATH_MAX];
3021         bool from_yaml = false;
3022         bool from_copy = false;
3023         char *template = NULL;
3024         bool foreign_mode = false;
3025         char *xattr = NULL;
3026         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
3027         char *mode_opt = NULL;
3028         mode_t previous_umask = 0;
3029         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
3030
3031         struct option long_opts[] = {
3032 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
3033 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3034         /* --block is only valid in migrate mode */
3035         { .val = 'b',   .name = "block",        .has_arg = no_argument },
3036         { .val = LFS_COMP_ADD_OPT,
3037                         .name = "comp-add",     .has_arg = no_argument },
3038         { .val = LFS_COMP_ADD_OPT,
3039                         .name = "component-add", .has_arg = no_argument },
3040         { .val = LFS_COMP_DEL_OPT,
3041                         .name = "comp-del",     .has_arg = no_argument },
3042         { .val = LFS_COMP_DEL_OPT,
3043                         .name = "component-del", .has_arg = no_argument },
3044         { .val = LFS_COMP_FLAGS_OPT,
3045                         .name = "comp-flags",   .has_arg = required_argument },
3046         { .val = LFS_COMP_FLAGS_OPT,
3047                         .name = "component-flags",
3048                                                 .has_arg = required_argument },
3049         { .val = LFS_COMP_SET_OPT,
3050                         .name = "comp-set",     .has_arg = no_argument },
3051         { .val = LFS_COMP_SET_OPT,
3052                         .name = "component-set",
3053                                                 .has_arg = no_argument},
3054         { .val = LFS_COMP_NO_VERIFY_OPT,
3055                         .name = "no-verify",    .has_arg = no_argument},
3056         { .val = LFS_LAYOUT_FLAGS_OPT,
3057                         .name = "flags",        .has_arg = required_argument},
3058         { .val = LFS_LAYOUT_FOREIGN_OPT,
3059                         .name = "foreign",      .has_arg = optional_argument},
3060         { .val = LFS_MIRROR_ID_OPT,
3061                         .name = "mirror-id",    .has_arg = required_argument},
3062         { .val = LFS_MODE_OPT,
3063                         .name = "mode",         .has_arg = required_argument},
3064         { .val = LFS_LAYOUT_COPY,
3065                         .name = "copy",         .has_arg = required_argument},
3066         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
3067         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
3068         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
3069         { .val = 'C',   .name = "overstripe-count",
3070                                                 .has_arg = required_argument},
3071         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
3072         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
3073         /* --non-direct is only valid in migrate mode */
3074         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
3075         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
3076         { .val = 'E',   .name = "component-end",
3077                                                 .has_arg = required_argument},
3078         { .val = 'f',   .name = "file",         .has_arg = required_argument },
3079 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3080 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
3081 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3082 /* find { .val = 'h',   .name = "help",         .has_arg = no_argument }, */
3083         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
3084         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
3085         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
3086         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
3087         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
3088 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
3089         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3090         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
3091         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
3092         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
3093         /* --non-block is only valid in migrate mode */
3094         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
3095         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
3096         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
3097 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3098         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
3099         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
3100 #endif
3101         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3102 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3103 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3104 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3105 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3106         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3107         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3108 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3109 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3110 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3111 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3112         /* --verbose is only valid in migrate mode */
3113         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
3114         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
3115         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
3116         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument},
3117         { .val = 'z',   .name = "extension-size", .has_arg = required_argument},
3118         { .name = NULL } };
3119
3120         setstripe_args_init(&lsa);
3121
3122         migrate_mode = (opc == SO_MIGRATE);
3123         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
3124         setstripe_mode = (opc == SO_SETSTRIPE);
3125         if (opc == SO_MIRROR_DELETE) {
3126                 delete = 1;
3127                 mirror_flags = MF_DESTROY;
3128         }
3129
3130         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
3131         progname = cmd;
3132         while ((c = getopt_long(argc, argv,
3133                                 "bc:C:dDE:f:H:i:I:m:N::no:p:L:s:S:vx:y:z:",
3134                                 long_opts, NULL)) >= 0) {
3135                 size_units = 1;
3136                 switch (c) {
3137                 case 0:
3138                         /* Long options. */
3139                         break;
3140                 case LFS_COMP_ADD_OPT:
3141                         comp_add = 1;
3142                         break;
3143                 case LFS_COMP_DEL_OPT:
3144                         comp_del = 1;
3145                         break;
3146                 case LFS_COMP_FLAGS_OPT:
3147                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
3148                                                 &lsa.lsa_comp_neg_flags);
3149                         if (result != 0)
3150                                 goto usage_error;
3151                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
3152                                 fprintf(stderr, "%s: inverted flags are not supported\n",
3153                                         progname);
3154                                 goto usage_error;
3155                         }
3156                         break;
3157                 case LFS_COMP_SET_OPT:
3158                         comp_set = 1;
3159                         break;
3160                 case LFS_COMP_NO_VERIFY_OPT:
3161                         mirror_flags |= MF_NO_VERIFY;
3162                         break;
3163                 case LFS_MIRROR_ID_OPT:
3164                         mirror_id = strtoul(optarg, &end, 0);
3165                         if (*end != '\0' || mirror_id == 0) {
3166                                 fprintf(stderr,
3167                                         "%s %s: invalid mirror ID '%s'\n",
3168                                         progname, argv[0], optarg);
3169                                 goto usage_error;
3170                         }
3171                         break;
3172                 case LFS_LAYOUT_FLAGS_OPT: {
3173                         uint32_t neg_flags;
3174
3175                         /* check for numeric flags (foreign and mirror cases) */
3176                         if (setstripe_mode && !mirror_mode && !last_mirror) {
3177                                 flags = strtoul(optarg, &end, 16);
3178                                 if (*end != '\0') {
3179                                         fprintf(stderr,
3180                                                 "%s %s: bad flags '%s'\n",
3181                                                 progname, argv[0], optarg);
3182                                         return CMD_HELP;
3183                                 }
3184                                 break;
3185                         }
3186
3187                         if (!mirror_mode || !last_mirror) {
3188                                 fprintf(stderr, "error: %s: --flags must be specified with --mirror-count|-N option\n",
3189                                         progname);
3190                                 goto usage_error;
3191                         }
3192
3193                         result = comp_str2flags(optarg, &last_mirror->m_flags,
3194                                                 &neg_flags);
3195                         if (result != 0)
3196                                 goto usage_error;
3197
3198                         if (neg_flags) {
3199                                 fprintf(stderr, "%s: inverted flags are not supported\n",
3200                                         progname);
3201                                 result = -EINVAL;
3202                                 goto usage_error;
3203                         }
3204                         if (last_mirror->m_flags & ~LCME_USER_MIRROR_FLAGS) {
3205                                 fprintf(stderr,
3206                                         "%s: unsupported mirror flags: %s\n",
3207                                         progname, optarg);
3208                                 result = -EINVAL;
3209                                 goto error;
3210                         }
3211                         break;
3212                 }
3213                 case LFS_LAYOUT_FOREIGN_OPT:
3214                         if (optarg != NULL) {
3215                                 /* check pure numeric */
3216                                 type = strtoul(optarg, &end, 0);
3217                                 if (*end) {
3218                                         /* check name */
3219                                         type = check_foreign_type_name(optarg);
3220                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
3221                                                 fprintf(stderr,
3222                                                         "%s %s: unrecognized foreign type '%s'\n",
3223                                                         progname, argv[0],
3224                                                         optarg);
3225                                                 return CMD_HELP;
3226                                         }
3227                                 }
3228                         }
3229                         foreign_mode = true;
3230                         break;
3231                 case LFS_MODE_OPT:
3232                         mode_opt = optarg;
3233                         if (mode_opt != NULL) {
3234                                 mode = strtoul(mode_opt, &end, 8);
3235                                 if (*end != '\0') {
3236                                         fprintf(stderr,
3237                                                 "%s %s: bad mode '%s'\n",
3238                                                 progname, argv[0], mode_opt);
3239                                         return CMD_HELP;
3240                                 }
3241                                 previous_umask = umask(0);
3242                         }
3243                         break;
3244                 case LFS_LAYOUT_COPY:
3245                         from_copy = true;
3246                         template = optarg;
3247                         break;
3248                 case 'b':
3249                         if (!migrate_mode) {
3250                                 fprintf(stderr,
3251                                         "%s %s: -b|--block valid only for migrate command\n",
3252                                         progname, argv[0]);
3253                                 goto usage_error;
3254                         }
3255                         migration_block = true;
3256                         break;
3257                 case 'C':
3258                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3259                                 fprintf(stderr,
3260                                         "%s %s: -C|--overstripe-count incompatible with DoM layout\n",
3261                                         progname, argv[0]);
3262                                 goto usage_error;
3263                         }
3264                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3265                         /* fall through */
3266                 case 'c':
3267                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3268                         if (*end != '\0') {
3269                                 fprintf(stderr,
3270                                         "%s %s: invalid stripe count '%s'\n",
3271                                         progname, argv[0], optarg);
3272                                 goto usage_error;
3273                         }
3274
3275                         if (lsa.lsa_stripe_count == -1)
3276                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
3277                         break;
3278                 case 'd':
3279                         /* delete the default striping pattern */
3280                         delete = 1;
3281                         if (opc == SO_MIRROR_SPLIT) {
3282                                 if (has_m_file) {
3283                                         fprintf(stderr,
3284                                               "%s %s: -d cannot used with -f\n",
3285                                                 progname, argv[0]);
3286                                         goto usage_error;
3287                                 }
3288                                 mirror_flags |= MF_DESTROY;
3289                         }
3290                         break;
3291                 case 'D':
3292                         if (!migrate_mode) {
3293                                 fprintf(stderr,
3294                                         "%s %s: -D|--non-direct is valid "
3295                                         "only for migrate command\n",
3296                                         progname, argv[0]);
3297                                 goto usage_error;
3298                         }
3299                         migration_flags |= MIGRATION_NONDIRECT;
3300                         break;
3301                 case 'E':
3302                         if (lsa.lsa_comp_end != 0) {
3303                                 result = comp_args_to_layout(lpp, &lsa, true);
3304                                 if (result) {
3305                                         fprintf(stderr, "%s: invalid layout\n",
3306                                                 progname);
3307                                         goto usage_error;
3308                                 }
3309
3310                                 setstripe_args_init_inherit(&lsa);
3311                         }
3312
3313                         if (arg_is_eof(optarg)) {
3314                                 lsa.lsa_comp_end = LUSTRE_EOF;
3315                         } else {
3316                                 result = llapi_parse_size(optarg,
3317                                                         &lsa.lsa_comp_end,
3318                                                         &size_units, 0);
3319                                 if (result) {
3320                                         fprintf(stderr,
3321                                                 "%s %s: invalid component end '%s'\n",
3322                                                 progname, argv[0], optarg);
3323                                         goto usage_error;
3324                                 }
3325                         }
3326                         break;
3327                 case 'H':
3328                         if (!migrate_mode) {
3329                                 fprintf(stderr, "--mdt-hash is valid only for migrate command\n");
3330                                 return CMD_HELP;
3331                         }
3332
3333                         lsa.lsa_pattern = check_hashtype(optarg);
3334                         if (lsa.lsa_pattern == 0) {
3335                                 fprintf(stderr,
3336                                         "%s %s: bad stripe hash type '%s'\n",
3337                                         progname, argv[0], optarg);
3338                                 return CMD_HELP;
3339                         }
3340                         break;
3341                 case 'i':
3342                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3343                         if (*end != '\0') {
3344                                 fprintf(stderr,
3345                                         "%s %s: invalid stripe offset '%s'\n",
3346                                         progname, argv[0], optarg);
3347                                 goto usage_error;
3348                         }
3349                         if (lsa.lsa_stripe_off == -1)
3350                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3351                         break;
3352                 case 'I':
3353                         comp_id = strtoul(optarg, &end, 0);
3354                         if (*end != '\0' || comp_id == 0 ||
3355                             comp_id > LCME_ID_MAX) {
3356                                 fprintf(stderr,
3357                                         "%s %s: invalid component ID '%s'\n",
3358                                         progname, argv[0], optarg);
3359                                 goto usage_error;
3360                         }
3361                         break;
3362                 case 'f':
3363                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3364                                 fprintf(stderr,
3365                                         "error: %s: invalid option: %s\n",
3366                                         progname, argv[optopt + 1]);
3367                                 goto usage_error;
3368                         }
3369                         if (opc == SO_MIRROR_EXTEND) {
3370                                 if (last_mirror == NULL) {
3371                                         fprintf(stderr,
3372                                 "error: %s: '-N' must exist in front of '%s'\n",
3373                                                 progname, argv[optopt + 1]);
3374                                         goto usage_error;
3375                                 }
3376                                 last_mirror->m_file = optarg;
3377                                 last_mirror->m_count = 1;
3378                         } else {
3379                                 /* mirror split */
3380                                 if (mirror_list == NULL)
3381                                         mirror_list = lfs_mirror_alloc();
3382                                 mirror_list->m_file = optarg;
3383                         }
3384                         has_m_file = true;
3385                         break;
3386                 case 'L':
3387                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3388                                 /* Can be only the first component */
3389                                 if (layout != NULL) {
3390                                         result = -EINVAL;
3391                                         fprintf(stderr, "error: 'mdt' layout "
3392                                                 "can be only the first one\n");
3393                                         goto error;
3394                                 }
3395                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3396                                         result = -EFBIG;
3397                                         fprintf(stderr, "error: 'mdt' layout "
3398                                                 "size is too big\n");
3399                                         goto error;
3400                                 }
3401                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3402                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3403                                 result = -EINVAL;
3404                                 fprintf(stderr, "error: layout '%s' is "
3405                                         "unknown, supported layouts are: "
3406                                         "'mdt', 'raid0'\n", argv[optind]);
3407                                 goto error;
3408                         }
3409                         break;
3410                 case 'm':
3411                         if (!migrate_mode) {
3412                                 fprintf(stderr,
3413                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3414                                         progname, argv[0]);
3415                                 goto usage_error;
3416                         }
3417                         migrate_mdt_mode = true;
3418                         lsa.lsa_nr_tgts = parse_targets(tgts,
3419                                                 sizeof(tgts) / sizeof(__u32),
3420                                                 lsa.lsa_nr_tgts, optarg, NULL);
3421                         if (lsa.lsa_nr_tgts < 0) {
3422                                 fprintf(stderr,
3423                                         "%s %s: invalid MDT target(s) '%s'\n",
3424                                         progname, argv[0], optarg);
3425                                 return CMD_HELP;
3426                         }
3427
3428                         lsa.lsa_tgts = tgts;
3429                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3430                                 lsa.lsa_stripe_off = tgts[0];
3431                         break;
3432                 case 'n':
3433                         if (!migrate_mode) {
3434                                 fprintf(stderr,
3435                                         "%s %s: -n|--non-block valid only for migrate command\n",
3436                                         progname, argv[0]);
3437                                 goto usage_error;
3438                         }
3439                         migration_flags |= MIGRATION_NONBLOCK;
3440                         break;
3441                 case 'N':
3442                         if (opc == SO_SETSTRIPE) {
3443                                 opc = SO_MIRROR_CREATE;
3444                                 mirror_mode = true;
3445                         }
3446                         mirror_count = 1;
3447                         if (optarg != NULL) {
3448                                 mirror_count = strtoul(optarg, &end, 0);
3449                                 if (*end != '\0' || mirror_count == 0) {
3450                                         fprintf(stderr,
3451                                                 "error: %s: bad mirror count: %s\n",
3452                                                 progname, optarg);
3453                                         result = -EINVAL;
3454                                         goto error;
3455                                 }
3456                         }
3457
3458                         new_mirror = lfs_mirror_alloc();
3459                         new_mirror->m_count = mirror_count;
3460
3461                         if (mirror_list == NULL)
3462                                 mirror_list = new_mirror;
3463
3464                         if (last_mirror != NULL) {
3465                                 /* wrap up last mirror */
3466                                 if (lsa.lsa_comp_end == 0)
3467                                         lsa.lsa_comp_end = LUSTRE_EOF;
3468
3469                                 result = comp_args_to_layout(lpp, &lsa, true);
3470                                 if (result) {
3471                                         lfs_mirror_free(new_mirror);
3472                                         goto error;
3473                                 }
3474
3475                                 setstripe_args_init_inherit(&lsa);
3476
3477                                 last_mirror->m_next = new_mirror;
3478                         }
3479
3480                         last_mirror = new_mirror;
3481                         lpp = &last_mirror->m_layout;
3482                         break;
3483                 case 'o':
3484 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3485                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
3486                                 fprintf(stderr, "warning: '--ost-list' is "
3487                                         "deprecated, use '--ost' instead\n");
3488 #endif
3489                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3490                                 fprintf(stderr,
3491                                         "%s %s: -o|--ost incompatible with DoM layout\n",
3492                                         progname, argv[0]);
3493                                 goto usage_error;
3494                         }
3495                         /* -o allows overstriping, and must note it because
3496                          * parse_targets is shared with MDT striping, which
3497                          * does not allow duplicates
3498                          */
3499                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3500                         lsa.lsa_nr_tgts = parse_targets(tgts,
3501                                                 sizeof(tgts) / sizeof(__u32),
3502                                                 lsa.lsa_nr_tgts, optarg,
3503                                                 &lsa.lsa_pattern);
3504                         if (lsa.lsa_nr_tgts < 0) {
3505                                 fprintf(stderr,
3506                                         "%s %s: invalid OST target(s) '%s'\n",
3507                                         progname, argv[0], optarg);
3508                                 goto usage_error;
3509                         }
3510
3511                         lsa.lsa_tgts = tgts;
3512                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3513                                 lsa.lsa_stripe_off = tgts[0];
3514                         break;
3515                 case 'p':
3516                         if (optarg == NULL)
3517                                 goto usage_error;
3518                         lsa.lsa_pool_name = optarg;
3519
3520                         if (strlen(lsa.lsa_pool_name) == 0 ||
3521                             strncmp(lsa.lsa_pool_name, "none",
3522                                     LOV_MAXPOOLNAME) == 0)
3523                                 lsa.lsa_pool_name = NULL;
3524                         break;
3525                 case 'S':
3526                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3527                                                   &size_units, 0);
3528                         if (result) {
3529                                 fprintf(stderr,
3530                                         "%s %s: invalid stripe size '%s'\n",
3531                                         progname, argv[0], optarg);
3532                                 goto usage_error;
3533                         }
3534                         break;
3535                 case 'v':
3536                         if (!migrate_mode) {
3537                                 fprintf(stderr,
3538                                         "%s %s: -v|--verbose valid only for migrate command\n",
3539                                         progname, argv[0]);
3540                                 goto usage_error;
3541                         }
3542                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3543                         migration_flags = MIGRATION_VERBOSE;
3544                         break;
3545                 case 'x':
3546                         xattr = optarg;
3547                         break;
3548                 case 'y':
3549                         from_yaml = true;
3550                         template = optarg;
3551                         break;
3552                 case 'z':
3553                         result = llapi_parse_size(optarg,
3554                                                   &lsa.lsa_extension_size,
3555                                                   &size_units, 0);
3556                         if (result) {
3557                                 fprintf(stderr,
3558                                         "%s %s: invalid extension size '%s'\n",
3559                                         progname, argv[0], optarg);
3560                                 goto usage_error;
3561                         }
3562
3563                         lsa.lsa_extension_comp = true;
3564                         break;
3565                 default:
3566                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
3567                                 progname, argv[0], argv[optind - 1]);
3568                         goto usage_error;
3569                 }
3570         }
3571
3572         fname = argv[optind];
3573
3574         if (optind == argc) {
3575                 fprintf(stderr, "%s %s: FILE must be specified\n",
3576                         progname, argv[0]);
3577                 goto usage_error;
3578         }
3579
3580         if (xattr && !foreign_mode) {
3581                 /* only print a warning as this is harmless and will be ignored
3582                  */
3583                 fprintf(stderr,
3584                         "%s %s: xattr has been specified for non-foreign layout\n",
3585                         progname, argv[0]);
3586         } else if (foreign_mode && !xattr) {
3587                 fprintf(stderr,
3588                         "%s %s: xattr must be provided in foreign mode\n",
3589                         progname, argv[0]);
3590                 goto usage_error;
3591         }
3592
3593         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
3594             comp_set || comp_id || delete || from_copy ||
3595             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
3596             lsa.lsa_tgts)) {
3597                 fprintf(stderr,
3598                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
3599                         progname, argv[0]);
3600                 return CMD_HELP;
3601         }
3602
3603         if (mirror_mode && mirror_count == 0) {
3604                 fprintf(stderr,
3605                         "error: %s: --mirror-count|-N option is required\n",
3606                         progname);
3607                 result = -EINVAL;
3608                 goto error;
3609         }
3610
3611         if (mirror_mode) {
3612                 if (lsa.lsa_comp_end == 0)
3613                         lsa.lsa_comp_end = LUSTRE_EOF;
3614         }
3615
3616         if (lsa.lsa_comp_end != 0) {
3617                 result = comp_args_to_layout(lpp, &lsa, true);
3618                 if (result) {
3619                         fprintf(stderr, "error: %s: invalid layout\n",
3620                                 progname);
3621                         result = -EINVAL;
3622                         goto error;
3623                 }
3624         }
3625
3626         if (mirror_flags & MF_NO_VERIFY) {
3627                 if (opc != SO_MIRROR_EXTEND) {
3628                         fprintf(stderr,
3629                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
3630                                 progname);
3631                         result = -EINVAL;
3632                         goto error;
3633                 } else if (!has_m_file) {
3634                         fprintf(stderr,
3635                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
3636                                 progname);
3637                         result = -EINVAL;
3638                         goto error;
3639                 }
3640         }
3641
3642         if (comp_set && !comp_id) {
3643                 fprintf(stderr, "%s %s: --component-set doesn't have component-id set\n",
3644                         progname, argv[0]);
3645                 goto usage_error;
3646         }
3647
3648         if ((delete + comp_set + comp_del + comp_add) > 1) {
3649                 fprintf(stderr,
3650                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
3651                         progname, argv[0]);
3652                 goto usage_error;
3653         }
3654
3655         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
3656                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
3657                 fprintf(stderr,
3658                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
3659                         progname, argv[0]);
3660                 goto usage_error;
3661         }
3662
3663         if ((comp_set || comp_del) &&
3664             (setstripe_args_specified(&lsa) || layout != NULL)) {
3665                 fprintf(stderr,
3666                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
3667                         progname, argv[0]);
3668                 goto usage_error;
3669         }
3670
3671         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
3672                 fprintf(stderr,
3673                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
3674                         progname, argv[0]);
3675                 goto usage_error;
3676         }
3677
3678         if (comp_add || comp_del) {
3679                 struct stat st;
3680
3681                 result = lstat(fname, &st);
3682                 if (result == 0 && S_ISDIR(st.st_mode)) {
3683                         fprintf(stderr,
3684                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
3685                                 progname);
3686                         goto usage_error;
3687                 }
3688
3689                 if (mirror_mode) {
3690                         fprintf(stderr, "error: %s: can't use --component-add "
3691                                 "or --component-del for mirror operation\n",
3692                                 progname);
3693                         goto usage_error;
3694                 }
3695         }
3696
3697         if (comp_add) {
3698                 if (layout == NULL) {
3699                         fprintf(stderr,
3700                                 "%s %s: option -E must be specified with --component-add\n",
3701                                 progname, argv[0]);
3702                         goto usage_error;
3703                 }
3704         }
3705
3706         if (layout != NULL || mirror_list != NULL) {
3707                 if (mirror_list)
3708                         result = mirror_adjust_first_extents(mirror_list);
3709                 else
3710                         result = layout_adjust_first_extent(fname, layout,
3711                                                             comp_add);
3712                 if (result == -ENODATA)
3713                         comp_add = 0;
3714                 else if (result != 0) {
3715                         fprintf(stderr, "error: %s: invalid layout\n",
3716                                 progname);
3717                         goto error;
3718                 }
3719         }
3720
3721         if (from_yaml && from_copy) {
3722                 fprintf(stderr,
3723                         "%s: can't specify --yaml and --copy together\n",
3724                         progname);
3725                 goto error;
3726         }
3727
3728         if ((from_yaml || from_copy) &&
3729             (setstripe_args_specified(&lsa) || layout != NULL)) {
3730                 fprintf(stderr, "error: %s: can't specify --yaml with "
3731                         "-c, -S, -i, -o, -p or -E options.\n",
3732                         argv[0]);
3733                 goto error;
3734         }
3735
3736         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
3737                 fprintf(stderr,
3738                         "%s %s: options --non-block and --block are mutually exclusive\n",
3739                         progname, argv[0]);
3740                 goto usage_error;
3741         }
3742
3743         if (!comp_del && !comp_set && opc != SO_MIRROR_SPLIT &&
3744             opc != SO_MIRROR_DELETE && comp_id != 0) {
3745                 fprintf(stderr,
3746                         "%s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
3747                         progname);
3748                 goto usage_error;
3749         }
3750
3751         if (migrate_mdt_mode) {
3752                 struct lmv_user_md *lmu;
3753
3754                 /* initialize migrate mdt parameters */
3755                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
3756                                                  LMV_USER_MAGIC_SPECIFIC));
3757                 if (!lmu) {
3758                         fprintf(stderr,
3759                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
3760                                 progname, argv[0], strerror(ENOMEM));
3761                         result = -ENOMEM;
3762                         goto error;
3763                 }
3764                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
3765                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
3766                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
3767                         fprintf(stderr,
3768                                 "%s %s: migrate should specify MDT index\n",
3769                                 progname, argv[0]);
3770                         free(lmu);
3771                         goto usage_error;
3772                 }
3773                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
3774                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
3775                         lmu->lum_hash_type = lsa.lsa_pattern;
3776                 else
3777                         lmu->lum_hash_type = LMV_HASH_TYPE_DEFAULT;
3778                 if (lsa.lsa_pool_name) {
3779                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
3780                                 sizeof(lmu->lum_pool_name) - 1);
3781                         lmu->lum_pool_name[sizeof(lmu->lum_pool_name) - 1] = 0;
3782                 }
3783                 if (lsa.lsa_nr_tgts > 1) {
3784                         int i;
3785
3786                         if (lsa.lsa_stripe_count > 0 &&
3787                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3788                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
3789                                 fprintf(stderr,
3790                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
3791                                         progname, lsa.lsa_stripe_count,
3792                                         lsa.lsa_nr_tgts);
3793                                 free(lmu);
3794                                 goto usage_error;
3795                         }
3796
3797                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
3798                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
3799                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
3800                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
3801                 } else {
3802                         lmu->lum_magic = LMV_USER_MAGIC;
3803                 }
3804
3805                 migrate_mdt_param.fp_lmv_md = lmu;
3806                 migrate_mdt_param.fp_migrate = 1;
3807         } else if (layout == NULL) {
3808                 /* initialize stripe parameters */
3809                 param = calloc(1, offsetof(typeof(*param),
3810                                lsp_osts[lsa.lsa_nr_tgts]));
3811                 if (param == NULL) {
3812                         fprintf(stderr,
3813                                 "%s %s: cannot allocate memory for parameters: %s\n",
3814                                 progname, argv[0], strerror(ENOMEM));
3815                         result = -ENOMEM;
3816                         goto error;
3817                 }
3818
3819                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
3820                         param->lsp_stripe_size = lsa.lsa_stripe_size;
3821                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
3822                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
3823                                 param->lsp_stripe_count = -1;
3824                         else
3825                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
3826                 }
3827                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3828                         param->lsp_stripe_offset = -1;
3829                 else
3830                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
3831                 param->lsp_stripe_pattern =
3832                                 llapi_pattern_to_lov(lsa.lsa_pattern);
3833                 if (param->lsp_stripe_pattern == EINVAL) {
3834                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
3835                                 argv[0]);
3836                         free(param);
3837                         goto usage_error;
3838                 }
3839                 param->lsp_pool = lsa.lsa_pool_name;
3840                 param->lsp_is_specific = false;
3841                 if (lsa.lsa_nr_tgts > 0) {
3842                         if (lsa.lsa_stripe_count > 0 &&
3843                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3844                             lsa.lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
3845                             lsa.lsa_nr_tgts != lsa.lsa_stripe_count) {
3846                                 fprintf(stderr,
3847                                         "error: %s: stripe count %lld doesn't match the number of OSTs: %d\n",
3848                                         argv[0], lsa.lsa_stripe_count,
3849                                         lsa.lsa_nr_tgts);
3850                                 free(param);
3851                                 goto usage_error;
3852                         }
3853
3854                         param->lsp_is_specific = true;
3855                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
3856                         memcpy(param->lsp_osts, tgts,
3857                                sizeof(*tgts) * lsa.lsa_nr_tgts);
3858                 }
3859         }
3860
3861         if (from_yaml) {
3862                 /* generate a layout from a YAML template */
3863                 result = lfs_comp_create_from_yaml(template, &layout,
3864                                                    &lsa, tgts);
3865                 if (result) {
3866                         fprintf(stderr, "error: %s: can't create composite "
3867                                 "layout from template file %s\n",
3868                                 argv[0], template);
3869                         goto error;
3870                 }
3871         } else if (from_copy) {
3872                 layout = llapi_layout_get_by_path(template, 0);
3873                 if (layout == NULL) {
3874                         fprintf(stderr,
3875                             "%s: can't create composite layout from file %s.\n",
3876                                 progname, template);
3877                         goto error;
3878                 }
3879         }
3880
3881         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
3882                 if (migrate_mdt_mode) {
3883                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
3884                 } else if (migrate_mode) {
3885                         result = lfs_migrate(fname, migration_flags, param,
3886                                              layout);
3887                 } else if (comp_set != 0) {
3888                         result = lfs_component_set(fname, comp_id,
3889                                                    lsa.lsa_comp_flags,
3890                                                    lsa.lsa_comp_neg_flags);
3891                 } else if (comp_del != 0) {
3892                         result = lfs_component_del(fname, comp_id,
3893                                                    lsa.lsa_comp_flags,
3894                                                    lsa.lsa_comp_neg_flags);
3895                 } else if (comp_add != 0) {
3896                         result = lfs_component_add(fname, layout);
3897                 } else if (opc == SO_MIRROR_CREATE) {
3898                         result = mirror_create(fname, mirror_list);
3899                 } else if (opc == SO_MIRROR_EXTEND) {
3900                         result = mirror_extend(fname, mirror_list,
3901                                                mirror_flags);
3902                 } else if (opc == SO_MIRROR_SPLIT || opc == SO_MIRROR_DELETE) {
3903                         if (!mirror_id && !comp_id && !lsa.lsa_pool_name) {
3904                                 fprintf(stderr,
3905                                         "%s: no mirror specified to delete from '%s'\n",
3906                                         progname, fname);
3907                                 goto usage_error;
3908                         }
3909                         if (lsa.lsa_pool_name)
3910                                 mirror_flags |= MF_COMP_POOL;
3911                         else if (mirror_id != 0)
3912                                 comp_id = mirror_id;
3913                         else
3914                                 mirror_flags |= MF_COMP_ID;
3915                         result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
3916                                               mirror_flags,
3917                                               has_m_file ? mirror_list->m_file :
3918                                               NULL);
3919                 } else if (layout != NULL) {
3920                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
3921                                                       mode, layout);
3922                         if (result >= 0) {
3923                                 close(result);
3924                                 result = 0;
3925                         }
3926                 } else if (foreign_mode) {
3927                         result = llapi_file_create_foreign(fname, mode, type,
3928                                                            flags, xattr);
3929                         if (result >= 0) {
3930                                 close(result);
3931                                 result = 0;
3932                         }
3933                 } else {
3934                         result = llapi_file_open_param(fname,
3935                                                        O_CREAT | O_WRONLY,
3936                                                        mode, param);
3937                         if (result >= 0) {
3938                                 close(result);
3939                                 result = 0;
3940                         }
3941                 }
3942                 if (result) {
3943                         /* Save the first error encountered. */
3944                         if (result2 == 0)
3945                                 result2 = result;
3946                         continue;
3947                 }
3948         }
3949
3950         if (mode_opt != NULL)
3951                 umask(previous_umask);
3952
3953         free(param);
3954         free(migrate_mdt_param.fp_lmv_md);
3955         llapi_layout_free(layout);
3956         lfs_mirror_list_free(mirror_list);
3957         return result2;
3958 usage_error:
3959         result = CMD_HELP;
3960 error:
3961         llapi_layout_free(layout);
3962         lfs_mirror_list_free(mirror_list);
3963         return result;
3964 }
3965
3966 static int lfs_poollist(int argc, char **argv)
3967 {
3968         if (argc != 2)
3969                 return CMD_HELP;
3970
3971         return llapi_poollist(argv[1]);
3972 }
3973
3974 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
3975                        char *str)
3976 {
3977         long long t = 0;
3978         int res = 0;
3979         char *endptr = "AD";
3980         char *timebuf;
3981
3982         if (str[0] == '+')
3983                 res = 1;
3984         else if (str[0] == '-')
3985                 res = -1;
3986
3987         if (res)
3988                 str++;
3989
3990         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
3991                 long long val = strtoll(timebuf, &endptr, 0);
3992                 int unit = 1;
3993
3994                 switch (*endptr) {
3995                 case  'y':
3996                         unit *= 52; /* 52 weeks + 1 day below */
3997                 case  'w':      /* fallthrough */
3998                         unit *= 7;
3999                 case '\0': /* days are default unit if none used */
4000                 case  'd':      /* fallthrough */
4001                         unit = (unit + (*endptr == 'y')) * 24;
4002                 case  'h':      /* fallthrough */
4003                         unit *= 60;
4004                 case  'm':      /* fallthrough */
4005                         unit *= 60;
4006                 case  's':      /* fallthrough */
4007                         break;
4008                         /* don't need to multiply by 1 for seconds */
4009                 default:
4010                         fprintf(stderr,
4011                                 "%s find: bad time string '%s': %s\n",
4012                                 progname, timebuf, strerror(EINVAL));
4013                         return LONG_MAX;
4014                 }
4015
4016                 if (param->fp_time_margin == 0 ||
4017                     (*endptr && unit < param->fp_time_margin))
4018                         param->fp_time_margin = unit;
4019
4020                 t += val * unit;
4021         }
4022         if (*time < t) {
4023                 if (res != 0)
4024                         str--;
4025                 fprintf(stderr, "%s find: bad time '%s': too large\n",
4026                         progname, str);
4027                 return LONG_MAX;
4028         }
4029
4030         *set = *time - t;
4031
4032         return res;
4033 }
4034
4035 static int name2uid(unsigned int *id, const char *name)
4036 {
4037         struct passwd *passwd;
4038
4039         passwd = getpwnam(name);
4040         if (passwd == NULL)
4041                 return -ENOENT;
4042         *id = passwd->pw_uid;
4043
4044         return 0;
4045 }
4046
4047 static int name2gid(unsigned int *id, const char *name)
4048 {
4049         struct group *group;
4050
4051         group = getgrnam(name);
4052         if (group == NULL)
4053                 return -ENOENT;
4054         *id = group->gr_gid;
4055
4056         return 0;
4057 }
4058
4059 static inline int name2projid(unsigned int *id, const char *name)
4060 {
4061         return -ENOTSUP;
4062 }
4063
4064 static int uid2name(char **name, unsigned int id)
4065 {
4066         struct passwd *passwd;
4067
4068         passwd = getpwuid(id);
4069         if (passwd == NULL)
4070                 return -ENOENT;
4071         *name = passwd->pw_name;
4072
4073         return 0;
4074 }
4075
4076 static inline int gid2name(char **name, unsigned int id)
4077 {
4078         struct group *group;
4079
4080         group = getgrgid(id);
4081         if (group == NULL)
4082                 return -ENOENT;
4083         *name = group->gr_name;
4084
4085         return 0;
4086 }
4087
4088 static int name2layout(__u32 *layout, char *name)
4089 {
4090         char *ptr, *layout_name;
4091
4092         *layout = 0;
4093         for (ptr = name; ; ptr = NULL) {
4094                 layout_name = strtok(ptr, ",");
4095                 if (layout_name == NULL)
4096                         break;
4097                 if (strcmp(layout_name, "released") == 0)
4098                         *layout |= LOV_PATTERN_F_RELEASED;
4099                 else if (strcmp(layout_name, "raid0") == 0)
4100                         *layout |= LOV_PATTERN_RAID0;
4101                 else if (strcmp(layout_name, "mdt") == 0)
4102                         *layout |= LOV_PATTERN_MDT;
4103                 else if (strcmp(layout_name, "overstriping") == 0)
4104                         *layout |= LOV_PATTERN_OVERSTRIPING;
4105                 else
4106                         return -1;
4107         }
4108         return 0;
4109 }
4110
4111 static int lfs_find(int argc, char **argv)
4112 {
4113         int c, rc;
4114         int ret = 0;
4115         time_t t;
4116         struct find_param param = {
4117                 .fp_max_depth = -1,
4118                 .fp_quiet = 1,
4119                 .fp_time_margin = 24 * 60 * 60,
4120         };
4121         struct option long_opts[] = {
4122         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
4123         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
4124         { .val = LFS_COMP_COUNT_OPT,
4125                         .name = "comp-count",   .has_arg = required_argument },
4126         { .val = LFS_COMP_COUNT_OPT,
4127                         .name = "component-count",
4128                                                 .has_arg = required_argument },
4129         { .val = LFS_COMP_FLAGS_OPT,
4130                         .name = "comp-flags",   .has_arg = required_argument },
4131         { .val = LFS_COMP_FLAGS_OPT,
4132                         .name = "component-flags",
4133                                                 .has_arg = required_argument },
4134         { .val = LFS_COMP_START_OPT,
4135                         .name = "comp-start",   .has_arg = required_argument },
4136         { .val = LFS_COMP_START_OPT,
4137                         .name = "component-start",
4138                                                 .has_arg = required_argument },
4139         { .val = LFS_MIRROR_STATE_OPT,
4140                         .name = "mirror-state", .has_arg = required_argument },
4141         { .val = LFS_LAYOUT_FOREIGN_OPT,
4142                         .name = "foreign",      .has_arg = optional_argument},
4143         { .val = LFS_NEWERXY_OPT,
4144                         .name = "newer",        .has_arg = required_argument},
4145         { .val = LFS_NEWERXY_OPT,
4146                         .name = "neweraa",      .has_arg = required_argument},
4147         { .val = LFS_NEWERXY_OPT,
4148                         .name = "neweram",      .has_arg = required_argument},
4149         { .val = LFS_NEWERXY_OPT,
4150                         .name = "newerac",      .has_arg = required_argument},
4151         { .val = LFS_NEWERXY_OPT,
4152                         .name = "newerma",      .has_arg = required_argument},
4153         { .val = LFS_NEWERXY_OPT,
4154                         .name = "newermm",      .has_arg = required_argument},
4155         { .val = LFS_NEWERXY_OPT,
4156                         .name = "newermc",      .has_arg = required_argument},
4157         { .val = LFS_NEWERXY_OPT,
4158                         .name = "newerca",      .has_arg = required_argument},
4159         { .val = LFS_NEWERXY_OPT,
4160                         .name = "newercm",      .has_arg = required_argument},
4161         { .val = LFS_NEWERXY_OPT,
4162                         .name = "newercc",      .has_arg = required_argument},
4163         { .val = LFS_NEWERXY_OPT,
4164                         .name = "newerat",      .has_arg = required_argument},
4165         { .val = LFS_NEWERXY_OPT,
4166                         .name = "newermt",      .has_arg = required_argument},
4167         { .val = LFS_NEWERXY_OPT,
4168                         .name = "newerct",      .has_arg = required_argument},
4169         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
4170         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
4171         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
4172 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
4173         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
4174         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
4175         { .val = 'E',   .name = "component-end",
4176                                                 .has_arg = required_argument },
4177 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
4178         { .val = LFS_LAYOUT_FOREIGN_OPT,
4179                         .name = "foreign",      .has_arg = optional_argument},
4180         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
4181         { .val = 'G',   .name = "group",        .has_arg = required_argument },
4182         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4183         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
4184         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
4185 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
4186         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
4187         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
4188         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
4189         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4190         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
4191         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
4192         { .val = 'n',   .name = "name",         .has_arg = required_argument },
4193         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
4194 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
4195         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4196         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4197         /* no short option for pool yet, can be 'p' after 2.18 */
4198         { .val = LFS_POOL_OPT,
4199                         .name = "pool",         .has_arg = required_argument },
4200         { .val = '0',   .name = "print0",       .has_arg = no_argument },
4201         { .val = 'P',   .name = "print",        .has_arg = no_argument },
4202         { .val = LFS_PROJID_OPT,
4203                         .name = "projid",       .has_arg = required_argument },
4204 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
4205 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
4206 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
4207         { .val = 's',   .name = "size",         .has_arg = required_argument },
4208         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
4209         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
4210         { .val = 't',   .name = "type",         .has_arg = required_argument },
4211         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4212         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
4213         { .val = 'U',   .name = "user",         .has_arg = required_argument },
4214         { .val = 'z',   .name = "extension-size",
4215                                                 .has_arg = required_argument },
4216         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument },
4217 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
4218 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
4219         { .name = NULL } };
4220         int optidx = 0;
4221         int pathstart = -1;
4222         int pathend = -1;
4223         int pathbad = -1;
4224         int neg_opt = 0;
4225         time_t *xtime;
4226         int *xsign;
4227         int isoption;
4228         char *endptr;
4229
4230         time(&t);
4231
4232         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
4233         while ((c = getopt_long_only(argc, argv,
4234                         "-0A:b:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:vz:",
4235                         long_opts, &optidx)) >= 0) {
4236                 xtime = NULL;
4237                 xsign = NULL;
4238                 if (neg_opt)
4239                         --neg_opt;
4240                 /* '!' is part of option */
4241                 /* when getopt_long_only() finds a string which is not
4242                  * an option nor a known option argument it returns 1
4243                  * in that case if we already have found pathstart and pathend
4244                  * (i.e. we have the list of pathnames),
4245                  * the only supported value is "!"
4246                  */
4247                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4248                 if (!isoption && pathend != -1) {
4249                         fprintf(stderr, "err: %s: filename|dirname must either "
4250                                         "precede options or follow options\n",
4251                                         argv[0]);
4252                         ret = CMD_HELP;
4253                         goto err;
4254                 }
4255                 if (!isoption && pathstart == -1)
4256                         pathstart = optind - 1;
4257                 if (isoption && pathstart != -1 && pathend == -1)
4258                         pathend = optind - 2;
4259                 switch (c) {
4260                 case 0:
4261                         /* Long options. */
4262                         break;
4263                 case 1:
4264                         /* unknown; opt is "!" or path component,
4265                          * checking done above.
4266                          */
4267                         if (strcmp(optarg, "!") == 0)
4268                                 neg_opt = 2;
4269                         break;
4270                 case 'A':
4271                         xtime = &param.fp_atime;
4272                         xsign = &param.fp_asign;
4273                         param.fp_exclude_atime = !!neg_opt;
4274                         /* no break, this falls through to 'C' for ctime */
4275                 case 'C':
4276                         if (c == 'C') {
4277                                 xtime = &param.fp_ctime;
4278                                 xsign = &param.fp_csign;
4279                                 param.fp_exclude_ctime = !!neg_opt;
4280                         }
4281                         /* no break, this falls through to 'M' for mtime */
4282                 case 'M':
4283                         if (c == 'M') {
4284                                 xtime = &param.fp_mtime;
4285                                 xsign = &param.fp_msign;
4286                                 param.fp_exclude_mtime = !!neg_opt;
4287                         }
4288                         rc = set_time(&param, &t, xtime, optarg);
4289                         if (rc == LONG_MAX) {
4290                                 ret = -1;
4291                                 goto err;
4292                         }
4293                         if (rc)
4294                                 *xsign = rc;
4295                         break;
4296                 case 'b':
4297                         if (optarg[0] == '+') {
4298                                 param.fp_blocks_sign = -1;
4299                                 optarg++;
4300                         } else if (optarg[0] == '-') {
4301                                 param.fp_blocks_sign =  1;
4302                                 optarg++;
4303                         }
4304
4305                         param.fp_blocks_units = 1024;
4306                         ret = llapi_parse_size(optarg, &param.fp_blocks,
4307                                                &param.fp_blocks_units, 0);
4308                         if (ret) {
4309                                 fprintf(stderr, "error: bad blocks '%s'\n",
4310                                         optarg);
4311                                 goto err;
4312                         }
4313                         param.fp_check_blocks = 1;
4314                         param.fp_exclude_blocks = !!neg_opt;
4315                         break;
4316                 case LFS_COMP_COUNT_OPT:
4317                         if (optarg[0] == '+') {
4318                                 param.fp_comp_count_sign = -1;
4319                                 optarg++;
4320                         } else if (optarg[0] == '-') {
4321                                 param.fp_comp_count_sign =  1;
4322                                 optarg++;
4323                         }
4324
4325                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
4326                         if (*endptr != '\0') {
4327                                 fprintf(stderr, "error: bad component count "
4328                                         "'%s'\n", optarg);
4329                                 goto err;
4330                         }
4331                         param.fp_check_comp_count = 1;
4332                         param.fp_exclude_comp_count = !!neg_opt;
4333                         break;
4334                 case LFS_COMP_FLAGS_OPT:
4335                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
4336                                             &param.fp_comp_neg_flags);
4337                         if (rc) {
4338                                 fprintf(stderr, "error: bad component flags "
4339                                         "'%s'\n", optarg);
4340                                 goto err;
4341                         }
4342                         param.fp_check_comp_flags = 1;
4343                         if (neg_opt) {
4344                                 __u32 flags = param.fp_comp_neg_flags;
4345                                 param.fp_comp_neg_flags = param.fp_comp_flags;
4346                                 param.fp_comp_flags = flags;
4347                         }
4348                         break;
4349                 case LFS_COMP_START_OPT:
4350                         if (optarg[0] == '+') {
4351                                 param.fp_comp_start_sign = -1;
4352                                 optarg++;
4353                         } else if (optarg[0] == '-') {
4354                                 param.fp_comp_start_sign =  1;
4355                                 optarg++;
4356                         }
4357
4358                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
4359                                               &param.fp_comp_start_units, 0);
4360                         if (rc) {
4361                                 fprintf(stderr, "error: bad component start "
4362                                         "'%s'\n", optarg);
4363                                 goto err;
4364                         }
4365                         param.fp_check_comp_start = 1;
4366                         param.fp_exclude_comp_start = !!neg_opt;
4367                         break;
4368                 case LFS_MIRROR_STATE_OPT:
4369                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
4370                                               &param.fp_mirror_neg_state);
4371                         if (rc) {
4372                                 fprintf(stderr,
4373                                         "error: bad mirrored file state '%s'\n",
4374                                         optarg);
4375                                 goto err;
4376                         }
4377                         param.fp_check_mirror_state = 1;
4378                         if (neg_opt) {
4379                                 __u16 state = param.fp_mirror_neg_state;
4380                                 param.fp_mirror_neg_state =
4381                                         param.fp_mirror_state;
4382                                 param.fp_mirror_state = state;
4383                         }
4384                         break;
4385                 case 'c':
4386                         if (optarg[0] == '+') {
4387                                 param.fp_stripe_count_sign = -1;
4388                                 optarg++;
4389                         } else if (optarg[0] == '-') {
4390                                 param.fp_stripe_count_sign =  1;
4391                                 optarg++;
4392                         }
4393
4394                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
4395                         if (*endptr != '\0') {
4396                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
4397                                         optarg);
4398                                 ret = -1;
4399                                 goto err;
4400                         }
4401                         param.fp_check_stripe_count = 1;
4402                         param.fp_exclude_stripe_count = !!neg_opt;
4403                         break;
4404                 case 'D':
4405                         param.fp_max_depth = strtol(optarg, 0, 0);
4406                         break;
4407                 case 'E':
4408                         if (optarg[0] == '+') {
4409                                 param.fp_comp_end_sign = -1;
4410                                 optarg++;
4411                         } else if (optarg[0] == '-') {
4412                                 param.fp_comp_end_sign =  1;
4413                                 optarg++;
4414                         }
4415
4416                         if (arg_is_eof(optarg)) {
4417                                 param.fp_comp_end = LUSTRE_EOF;
4418                                 param.fp_comp_end_units = 1;
4419                                 rc = 0;
4420                         } else {
4421                                 rc = llapi_parse_size(optarg,
4422                                                 &param.fp_comp_end,
4423                                                 &param.fp_comp_end_units, 0);
4424                         }
4425                         if (rc) {
4426                                 fprintf(stderr, "error: bad component end "
4427                                         "'%s'\n", optarg);
4428                                 goto err;
4429                         }
4430                         param.fp_check_comp_end = 1;
4431                         param.fp_exclude_comp_end = !!neg_opt;
4432                         break;
4433                 case LFS_LAYOUT_FOREIGN_OPT: {
4434                         /* all types by default */
4435                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
4436
4437                         if (optarg != NULL) {
4438                                 /* check pure numeric */
4439                                 type = strtoul(optarg, &endptr, 0);
4440                                 if (*endptr) {
4441                                         /* check name */
4442                                         type = check_foreign_type_name(optarg);
4443                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
4444                                                 fprintf(stderr,
4445                                                         "%s %s: unknown foreign type '%s'\n",
4446                                                         progname, argv[0],
4447                                                         optarg);
4448                                                 return CMD_HELP;
4449                                         }
4450                                 }
4451                         }
4452                         param.fp_foreign_type = type;
4453                         param.fp_check_foreign = 1;
4454                         param.fp_exclude_foreign = !!neg_opt;
4455                         break;
4456                 }
4457                 case LFS_NEWERXY_OPT: {
4458                         char x = 'm';
4459                         char y = 'm';
4460                         int xidx;
4461                         int negidx;
4462                         time_t *newery;
4463                         time_t ref = time(NULL);
4464
4465                         /* no need to check bad options, they won't get here */
4466                         if (strlen(long_opts[optidx].name) == 7) {
4467                                 x = long_opts[optidx].name[5];
4468                                 y = long_opts[optidx].name[6];
4469                         }
4470
4471                         if (y == 't') {
4472                                 static const char *const fmts[] = {
4473                                         "%Y-%m-%d %H:%M:%S",
4474                                         "%Y-%m-%d %H:%M",
4475                                         "%Y-%m-%d",
4476                                         "%H:%M:%S", /* sometime today */
4477                                         "%H:%M",
4478                                         "@%s",
4479                                         "%s",
4480                                         NULL };
4481                                 struct tm tm;
4482                                 bool found = false;
4483                                 int i;
4484
4485                                 for (i = 0; fmts[i] != NULL; i++) {
4486                                         char *ptr;
4487
4488                                         /* Init for times relative to today */
4489                                         if (strncmp(fmts[i], "%H", 2) == 0)
4490                                                 localtime_r(&ref, &tm);
4491                                         else
4492                                                 memset(&tm, 0, sizeof(tm));
4493                                         ptr = strptime(optarg, fmts[i], &tm);
4494                                         /* Skip spaces */
4495                                         while (ptr && isspace(*ptr))
4496                                                 ptr++;
4497                                         if (ptr == optarg + strlen(optarg)) {
4498                                                 found = true;
4499                                                 break;
4500                                         }
4501                                 }
4502
4503                                 if (!found) {
4504                                         fprintf(stderr,
4505                                                 "%s: invalid time '%s'\n",
4506                                                 progname, optarg);
4507                                         fprintf(stderr,
4508                                                 "supported formats are:\n  ");
4509                                         for (i = 0; fmts[i] != NULL; i++)
4510                                                 fprintf(stderr, "'%s', ",
4511                                                         fmts[i]);
4512                                         fprintf(stderr, "\n");
4513                                         ret = -EINVAL;
4514                                         goto err;
4515                                 }
4516
4517                                 ref = mktime(&tm);
4518                         } else {
4519                                 struct stat statbuf;
4520
4521                                 if (stat(optarg, &statbuf) < 0) {
4522                                         fprintf(stderr,
4523                                                 "%s: cannot stat file '%s': %s\n",
4524                                                 progname, optarg,
4525                                                 strerror(errno));
4526                                         ret = -errno;
4527                                         goto err;
4528                                 }
4529
4530                                 switch (y) {
4531                                 case 'a':
4532                                         ref = statbuf.st_atime;
4533                                         break;
4534                                 case 'm':
4535                                         ref = statbuf.st_mtime;
4536                                         break;
4537                                 case 'c':
4538                                         ref = statbuf.st_ctime;
4539                                         break;
4540                                 default:
4541                                         fprintf(stderr,
4542                                                 "%s: invalid Y argument: '%c'\n",
4543                                                 progname, x);
4544                                         ret = -EINVAL;
4545                                         goto err;
4546                                 }
4547                         }
4548
4549                         switch (x) {
4550                         case 'a':
4551                                 xidx = NEWERXY_ATIME;
4552                                 break;
4553                         case 'm':
4554                                 xidx = NEWERXY_MTIME;
4555                                 break;
4556                         case 'c':
4557                                 xidx = NEWERXY_CTIME;
4558                                 break;
4559                         default:
4560                                 fprintf(stderr,
4561                                         "%s: invalid X argument: '%c'\n",
4562                                         progname, x);
4563                                 ret = -EINVAL;
4564                                 goto err;
4565                         }
4566
4567                         negidx = !!neg_opt;
4568                         newery = &param.fp_newery[xidx][negidx];
4569
4570                         if (*newery == 0) {
4571                                 *newery = ref;
4572                         } else {
4573                                 if (negidx)
4574                                         *newery = *newery > ref ? ref : *newery;
4575                                 else
4576                                         *newery = *newery > ref ? *newery : ref;
4577                         }
4578                         param.fp_newerxy = 1;
4579                         break;
4580                 }
4581                 case 'g':
4582                 case 'G':
4583                         rc = name2gid(&param.fp_gid, optarg);
4584                         if (rc) {
4585                                 param.fp_gid = strtoul(optarg, &endptr, 10);
4586                                 if (*endptr != '\0') {
4587                                         fprintf(stderr, "Group/GID: %s cannot "
4588                                                 "be found.\n", optarg);
4589                                         ret = -1;
4590                                         goto err;
4591                                 }
4592                         }
4593                         param.fp_exclude_gid = !!neg_opt;
4594                         param.fp_check_gid = 1;
4595                         break;
4596                 case 'H':
4597                         param.fp_hash_type = check_hashtype(optarg);
4598                         if (param.fp_hash_type == 0) {
4599                                 fprintf(stderr, "error: bad hash_type '%s'\n",
4600                                         optarg);
4601                                 ret = -1;
4602                                 goto err;
4603                         }
4604                         param.fp_check_hash_type = 1;
4605                         param.fp_exclude_hash_type = !!neg_opt;
4606                         break;
4607                 case 'l':
4608                         param.fp_lazy = 1;
4609                         break;
4610                 case 'L':
4611                         ret = name2layout(&param.fp_layout, optarg);
4612                         if (ret)
4613                                 goto err;
4614                         param.fp_exclude_layout = !!neg_opt;
4615                         param.fp_check_layout = 1;
4616                         break;
4617                 case 'u':
4618                 case 'U':
4619                         rc = name2uid(&param.fp_uid, optarg);
4620                         if (rc) {
4621                                 param.fp_uid = strtoul(optarg, &endptr, 10);
4622                                 if (*endptr != '\0') {
4623                                         fprintf(stderr, "User/UID: %s cannot "
4624                                                 "be found.\n", optarg);
4625                                         ret = -1;
4626                                         goto err;
4627                                 }
4628                         }
4629                         param.fp_exclude_uid = !!neg_opt;
4630                         param.fp_check_uid = 1;
4631                         break;
4632                 case 'n':
4633                         param.fp_pattern = (char *)optarg;
4634                         param.fp_exclude_pattern = !!neg_opt;
4635                         break;
4636                 case 'N':
4637                         if (optarg[0] == '+') {
4638                                 param.fp_mirror_count_sign = -1;
4639                                 optarg++;
4640                         } else if (optarg[0] == '-') {
4641                                 param.fp_mirror_count_sign =  1;
4642                                 optarg++;
4643                         }
4644
4645                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
4646                         if (*endptr != '\0') {
4647                                 fprintf(stderr,
4648                                         "error: bad mirror count '%s'\n",
4649                                         optarg);
4650                                 goto err;
4651                         }
4652                         param.fp_check_mirror_count = 1;
4653                         param.fp_exclude_mirror_count = !!neg_opt;
4654                         break;
4655                 case 'm':
4656                 case 'i':
4657                 case 'O': {
4658                         char *buf, *token, *next, *p;
4659                         int len = 1;
4660                         void *tmp;
4661
4662                         buf = strdup(optarg);
4663                         if (buf == NULL) {
4664                                 ret = -ENOMEM;
4665                                 goto err;
4666                         }
4667
4668                         param.fp_exclude_obd = !!neg_opt;
4669
4670                         token = buf;
4671                         while (token && *token) {
4672                                 token = strchr(token, ',');
4673                                 if (token) {
4674                                         len++;
4675                                         token++;
4676                                 }
4677                         }
4678                         if (c == 'm') {
4679                                 param.fp_exclude_mdt = !!neg_opt;
4680                                 param.fp_num_alloc_mdts += len;
4681                                 tmp = realloc(param.fp_mdt_uuid,
4682                                               param.fp_num_alloc_mdts *
4683                                               sizeof(*param.fp_mdt_uuid));
4684                                 if (tmp == NULL) {
4685                                         ret = -ENOMEM;
4686                                         goto err_free;
4687                                 }
4688
4689                                 param.fp_mdt_uuid = tmp;
4690                         } else {
4691                                 param.fp_exclude_obd = !!neg_opt;
4692                                 param.fp_num_alloc_obds += len;
4693                                 tmp = realloc(param.fp_obd_uuid,
4694                                               param.fp_num_alloc_obds *
4695                                               sizeof(*param.fp_obd_uuid));
4696                                 if (tmp == NULL) {
4697                                         ret = -ENOMEM;
4698                                         goto err_free;
4699                                 }
4700
4701                                 param.fp_obd_uuid = tmp;
4702                         }
4703                         for (token = buf; token && *token; token = next) {
4704                                 struct obd_uuid *puuid;
4705                                 if (c == 'm') {
4706                                         puuid =
4707                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
4708                                 } else {
4709                                         puuid =
4710                                         &param.fp_obd_uuid[param.fp_num_obds++];
4711                                 }
4712                                 p = strchr(token, ',');
4713                                 next = 0;
4714                                 if (p) {
4715                                         *p = 0;
4716                                         next = p+1;
4717                                 }
4718
4719                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
4720                                         ret = -E2BIG;
4721                                         goto err_free;
4722                                 }
4723
4724                                 strncpy(puuid->uuid, token,
4725                                         sizeof(puuid->uuid));
4726                         }
4727 err_free:
4728                         if (buf)
4729                                 free(buf);
4730                         break;
4731                 }
4732 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
4733                 case 'p':
4734 #endif
4735                 case LFS_POOL_OPT:
4736                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
4737                                 fprintf(stderr,
4738                                         "Pool name %s is too long (max %d)\n",
4739                                         optarg, LOV_MAXPOOLNAME);
4740                                 ret = -1;
4741                                 goto err;
4742                         }
4743                         /*
4744                          * We do check for empty pool because empty pool
4745                          * is used to find V1 LOV attributes
4746                          */
4747                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
4748                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
4749                         param.fp_exclude_pool = !!neg_opt;
4750                         param.fp_check_pool = 1;
4751                         break;
4752 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
4753                 case 'p': /* want this for --pool, to match getstripe/find */
4754                         fprintf(stderr,
4755                                 "warning: -p deprecated, use --print0 or -0\n");
4756 #endif
4757                 case '0':
4758                         param.fp_zero_end = 1;
4759                         break;
4760                 case 'P': /* we always print, this option is a no-op */
4761                         break;
4762                 case LFS_PROJID_OPT:
4763                         rc = name2projid(&param.fp_projid, optarg);
4764                         if (rc) {
4765                                 param.fp_projid = strtoul(optarg, &endptr, 10);
4766                                 if (*endptr != '\0') {
4767                                         fprintf(stderr,
4768                                                 "Invalid project ID: %s",
4769                                                 optarg);
4770                                         ret = -1;
4771                                         goto err;
4772                                 }
4773                         }
4774                         param.fp_exclude_projid = !!neg_opt;
4775                         param.fp_check_projid = 1;
4776                         break;
4777                 case 's':
4778                         if (optarg[0] == '+') {
4779                                 param.fp_size_sign = -1;
4780                                 optarg++;
4781                         } else if (optarg[0] == '-') {
4782                                 param.fp_size_sign =  1;
4783                                 optarg++;
4784                         }
4785
4786                         ret = llapi_parse_size(optarg, &param.fp_size,
4787                                                &param.fp_size_units, 0);
4788                         if (ret) {
4789                                 fprintf(stderr, "error: bad file size '%s'\n",
4790                                         optarg);
4791                                 goto err;
4792                         }
4793                         param.fp_check_size = 1;
4794                         param.fp_exclude_size = !!neg_opt;
4795                         break;
4796                 case 'S':
4797                         if (optarg[0] == '+') {
4798                                 param.fp_stripe_size_sign = -1;
4799                                 optarg++;
4800                         } else if (optarg[0] == '-') {
4801                                 param.fp_stripe_size_sign =  1;
4802                                 optarg++;
4803                         }
4804
4805                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
4806                                                &param.fp_stripe_size_units, 0);
4807                         if (ret) {
4808                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
4809                                         optarg);
4810                                 goto err;
4811                         }
4812                         param.fp_check_stripe_size = 1;
4813                         param.fp_exclude_stripe_size = !!neg_opt;
4814                         break;
4815                 case 't':
4816                         param.fp_exclude_type = !!neg_opt;
4817                         switch (optarg[0]) {
4818                         case 'b':
4819                                 param.fp_type = S_IFBLK;
4820                                 break;
4821                         case 'c':
4822                                 param.fp_type = S_IFCHR;
4823                                 break;
4824                         case 'd':
4825                                 param.fp_type = S_IFDIR;
4826                                 break;
4827                         case 'f':
4828                                 param.fp_type = S_IFREG;
4829                                 break;
4830                         case 'l':
4831                                 param.fp_type = S_IFLNK;
4832                                 break;
4833                         case 'p':
4834                                 param.fp_type = S_IFIFO;
4835                                 break;
4836                         case 's':
4837                                 param.fp_type = S_IFSOCK;
4838                                 break;
4839                         default:
4840                                 fprintf(stderr, "error: %s: bad type '%s'\n",
4841                                         argv[0], optarg);
4842                                 ret = CMD_HELP;
4843                                 goto err;
4844                         };
4845                         break;
4846                 case 'T':
4847                         if (optarg[0] == '+') {
4848                                 param.fp_mdt_count_sign = -1;
4849                                 optarg++;
4850                         } else if (optarg[0] == '-') {
4851                                 param.fp_mdt_count_sign =  1;
4852                                 optarg++;
4853                         }
4854
4855                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
4856                         if (*endptr != '\0') {
4857                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
4858                                         optarg);
4859                                 ret = -1;
4860                                 goto err;
4861                         }
4862                         param.fp_check_mdt_count = 1;
4863                         param.fp_exclude_mdt_count = !!neg_opt;
4864                         break;
4865                 case 'z':
4866                         if (optarg[0] == '+') {
4867                                 param.fp_ext_size_sign = -1;
4868                                 optarg++;
4869                         } else if (optarg[0] == '-') {
4870                                 param.fp_ext_size_sign =  1;
4871                                 optarg++;
4872                         }
4873
4874                         ret = llapi_parse_size(optarg, &param.fp_ext_size,
4875                                                &param.fp_ext_size_units, 0);
4876                         if (ret) {
4877                                 fprintf(stderr, "error: bad ext-size '%s'\n",
4878                                         optarg);
4879                                 goto err;
4880                         }
4881                         param.fp_ext_size /= SEL_UNIT_SIZE;
4882                         param.fp_ext_size_units /= SEL_UNIT_SIZE;
4883                         param.fp_check_ext_size = 1;
4884                         param.fp_exclude_ext_size = !!neg_opt;
4885                         break;
4886                 default:
4887                         ret = CMD_HELP;
4888                         goto err;
4889                 };
4890         }
4891
4892         if (pathstart == -1) {
4893                 fprintf(stderr, "error: %s: no filename|pathname\n",
4894                         argv[0]);
4895                 ret = CMD_HELP;
4896                 goto err;
4897         } else if (pathend == -1) {
4898                 /* no options */
4899                 pathend = argc;
4900         }
4901
4902         do {
4903                 rc = llapi_find(argv[pathstart], &param);
4904                 if (rc && !ret) {
4905                         ret = rc;
4906                         pathbad = pathstart;
4907                 }
4908         } while (++pathstart < pathend);
4909
4910         if (ret)
4911                 fprintf(stderr, "%s: failed for '%s': %s\n",
4912                         progname, argv[pathbad], strerror(-rc));
4913
4914 err:
4915         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
4916                 free(param.fp_obd_uuid);
4917
4918         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
4919                 free(param.fp_mdt_uuid);
4920
4921         return ret;
4922 }
4923
4924 static int lfs_getstripe_internal(int argc, char **argv,
4925                                   struct find_param *param)
4926 {
4927         struct option long_opts[] = {
4928 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
4929 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
4930         { .val = LFS_COMP_COUNT_OPT,
4931                         .name = "comp-count",   .has_arg = no_argument },
4932         { .val = LFS_COMP_COUNT_OPT,
4933                 .name = "component-count",      .has_arg = no_argument },
4934         { .val = LFS_COMP_FLAGS_OPT,
4935                         .name = "comp-flags",   .has_arg = optional_argument },
4936         { .val = LFS_COMP_FLAGS_OPT,
4937                 .name = "component-flags",      .has_arg = optional_argument },
4938         { .val = LFS_COMP_START_OPT,
4939                         .name = "comp-start",   .has_arg = optional_argument },
4940         { .val = LFS_COMP_START_OPT,
4941                 .name = "component-start",      .has_arg = optional_argument },
4942         { .val = LFS_MIRROR_INDEX_OPT,
4943                 .name = "mirror-index",         .has_arg = required_argument },
4944         { .val = LFS_MIRROR_ID_OPT,
4945                 .name = "mirror-id",            .has_arg = required_argument },
4946         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
4947         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
4948 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
4949         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
4950         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4951         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
4952         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
4953         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
4954         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
4955 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
4956 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
4957         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
4958         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
4959         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
4960         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
4961 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
4962         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
4963         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
4964         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4965         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
4966 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
4967 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
4968         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
4969         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4970         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4971         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
4972 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
4973         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
4974         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4975         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
4976         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
4977         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
4978 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
4979 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
4980 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
4981 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
4982         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
4983         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4984         { .val = 'z',   .name = "extension-size", .has_arg = no_argument },
4985         { .val = 'z',   .name = "ext-size",     .has_arg = no_argument },
4986         { .name = NULL } };
4987         int c, rc;
4988         int neg_opt = 0;
4989         int pathstart = -1, pathend = -1;
4990         int isoption;
4991         char *end, *tmp;
4992
4993         while ((c = getopt_long(argc, argv,
4994                         "-cdDE::FghiI::LmMNoO:pqrRsSvyz",
4995                         long_opts, NULL)) != -1) {
4996                 if (neg_opt)
4997                         --neg_opt;
4998
4999                 /* '!' is part of option */
5000                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5001                 if (!isoption && pathend != -1) {
5002                         fprintf(stderr,
5003                                 "error: %s: filename|dirname must either precede options or follow options\n",
5004                                 argv[0]);
5005                         return CMD_HELP;
5006                 }
5007                 if (!isoption && pathstart == -1)
5008                         pathstart = optind - 1;
5009                 if (isoption && pathstart != -1 && pathend == -1)
5010                         pathend = optind - 2;
5011
5012                 switch (c) {
5013                 case 1:
5014                         /* unknown: opt is "!" */
5015                         if (strcmp(optarg, "!") == 0)
5016                                 neg_opt = 2;
5017                         break;
5018                 case 'c':
5019                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5020                                 param->fp_verbose |= VERBOSE_COUNT;
5021                                 param->fp_max_depth = 0;
5022                         }
5023                         break;
5024                 case LFS_COMP_COUNT_OPT:
5025                         param->fp_verbose |= VERBOSE_COMP_COUNT;
5026                         param->fp_max_depth = 0;
5027                         break;
5028                 case LFS_COMP_FLAGS_OPT:
5029                         if (optarg != NULL) {
5030                                 rc = comp_str2flags(optarg,
5031                                                     &param->fp_comp_flags,
5032                                                     &param->fp_comp_neg_flags);
5033                                 if (rc != 0) {
5034                                         fprintf(stderr, "error: %s bad "
5035                                                 "component flags '%s'.\n",
5036                                                 argv[0], optarg);
5037                                         return CMD_HELP;
5038                                 }
5039                                 param->fp_check_comp_flags = 1;
5040                         } else {
5041                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
5042                                 param->fp_max_depth = 0;
5043                         }
5044                         break;
5045                 case LFS_COMP_START_OPT:
5046                         if (optarg != NULL) {
5047                                 tmp = optarg;
5048                                 if (tmp[0] == '+') {
5049                                         param->fp_comp_start_sign = -1;
5050                                         tmp++;
5051                                 } else if (tmp[0] == '-') {
5052                                         param->fp_comp_start_sign = 1;
5053                                         tmp++;
5054                                 }
5055                                 rc = llapi_parse_size(tmp,
5056                                                 &param->fp_comp_start,
5057                                                 &param->fp_comp_start_units, 0);
5058                                 if (rc != 0) {
5059                                         fprintf(stderr, "error: %s bad "
5060                                                 "component start '%s'.\n",
5061                                                 argv[0], tmp);
5062                                         return CMD_HELP;
5063                                 } else {
5064                                         param->fp_check_comp_start = 1;
5065                                 }
5066                         } else {
5067                                 param->fp_verbose |= VERBOSE_COMP_START;
5068                                 param->fp_max_depth = 0;
5069                         }
5070                         break;
5071                 case LFS_MIRROR_INDEX_OPT:
5072                         if (optarg[0] == '+') {
5073                                 param->fp_mirror_index_sign = -1;
5074                                 optarg++;
5075                         } else if (optarg[0] == '-') {
5076                                 param->fp_mirror_index_sign = 1;
5077                                 optarg++;
5078                         }
5079
5080                         param->fp_mirror_index = strtoul(optarg, &end, 0);
5081                         if (*end != '\0' || (param->fp_mirror_index == 0 &&
5082                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
5083                                 fprintf(stderr,
5084                                         "%s %s: invalid mirror index '%s'\n",
5085                                         progname, argv[0], optarg);
5086                                 return CMD_HELP;
5087                         }
5088                         if (param->fp_mirror_id != 0) {
5089                                 fprintf(stderr,
5090                                         "%s %s: can't specify both mirror index and mirror ID\n",
5091                                         progname, argv[0]);
5092                                 return CMD_HELP;
5093                         }
5094                         param->fp_check_mirror_index = 1;
5095                         param->fp_exclude_mirror_index = !!neg_opt;
5096                         break;
5097                 case LFS_MIRROR_ID_OPT:
5098                         if (optarg[0] == '+') {
5099                                 param->fp_mirror_id_sign = -1;
5100                                 optarg++;
5101                         } else if (optarg[0] == '-') {
5102                                 param->fp_mirror_id_sign = 1;
5103                                 optarg++;
5104                         }
5105
5106                         param->fp_mirror_id = strtoul(optarg, &end, 0);
5107                         if (*end != '\0' || (param->fp_mirror_id == 0 &&
5108                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
5109                                 fprintf(stderr,
5110                                         "%s %s: invalid mirror ID '%s'\n",
5111                                         progname, argv[0], optarg);
5112                                 return CMD_HELP;
5113                         }
5114                         if (param->fp_mirror_index != 0) {
5115                                 fprintf(stderr,
5116                                         "%s %s: can't specify both mirror index and mirror ID\n",
5117                                         progname, argv[0]);
5118                                 return CMD_HELP;
5119                         }
5120                         param->fp_check_mirror_id = 1;
5121                         param->fp_exclude_mirror_id = !!neg_opt;
5122                         break;
5123                 case 'd':
5124                         param->fp_max_depth = 0;
5125                         break;
5126                 case 'D':
5127                         param->fp_get_default_lmv = 1;
5128                         break;
5129                 case 'E':
5130                         if (optarg != NULL) {
5131                                 tmp = optarg;
5132                                 if (tmp[0] == '+') {
5133                                         param->fp_comp_end_sign = -1;
5134                                         tmp++;
5135                                 } else if (tmp[0] == '-') {
5136                                         param->fp_comp_end_sign = 1;
5137                                         tmp++;
5138                                 }
5139
5140                                 if (arg_is_eof(tmp)) {
5141                                         param->fp_comp_end = LUSTRE_EOF;
5142                                         param->fp_comp_end_units = 1;
5143                                         rc = 0;
5144                                 } else {
5145                                         rc = llapi_parse_size(tmp,
5146                                                 &param->fp_comp_end,
5147                                                 &param->fp_comp_end_units, 0);
5148                                 }
5149                                 if (rc != 0) {
5150                                         fprintf(stderr, "error: %s bad "
5151                                                 "component end '%s'.\n",
5152                                                 argv[0], tmp);
5153                                         return CMD_HELP;
5154                                 }
5155                                 param->fp_check_comp_end = 1;
5156                         } else {
5157                                 param->fp_verbose |= VERBOSE_COMP_END;
5158                                 param->fp_max_depth = 0;
5159                         }
5160                         break;
5161                 case 'F':
5162                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5163                                 param->fp_verbose |= VERBOSE_DFID;
5164                                 param->fp_max_depth = 0;
5165                         }
5166                         break;
5167                 case 'g':
5168                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5169                                 param->fp_verbose |= VERBOSE_GENERATION;
5170                                 param->fp_max_depth = 0;
5171                         }
5172                         break;
5173                 case 'i':
5174                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5175                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
5176                                 param->fp_max_depth = 0;
5177                         }
5178                         break;
5179                 case 'I':
5180                         if (optarg != NULL) {
5181                                 param->fp_comp_id = strtoul(optarg, &end, 0);
5182                                 if (*end != '\0' || param->fp_comp_id == 0 ||
5183                                     param->fp_comp_id > LCME_ID_MAX) {
5184                                         fprintf(stderr, "error: %s bad "
5185                                                 "component id '%s'\n",
5186                                                 argv[0], optarg);
5187                                         return CMD_HELP;
5188                                 } else {
5189                                         param->fp_check_comp_id = 1;
5190                                 }
5191                         } else {
5192                                 param->fp_max_depth = 0;
5193                                 param->fp_verbose |= VERBOSE_COMP_ID;
5194                         }
5195                         break;
5196                 case 'L':
5197                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5198                                 param->fp_verbose |= VERBOSE_PATTERN;
5199                                 param->fp_max_depth = 0;
5200                         }
5201                         break;
5202 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5203                 case 'M':
5204                         fprintf(stderr, "warning: '-M' deprecated"
5205                                 ", use '--mdt-index' or '-m' instead\n");
5206 #endif
5207                 case 'm':
5208                         if (!(param->fp_verbose & VERBOSE_DETAIL))
5209                                 param->fp_max_depth = 0;
5210                         param->fp_verbose |= VERBOSE_MDTINDEX;
5211                         break;
5212                 case 'N':
5213                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5214                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
5215                                 param->fp_max_depth = 0;
5216                         }
5217                         break;
5218                 case 'O':
5219                         if (param->fp_obd_uuid) {
5220                                 fprintf(stderr,
5221                                         "error: %s: only one obduuid allowed",
5222                                         argv[0]);
5223                                 return CMD_HELP;
5224                         }
5225                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
5226                         break;
5227                 case 'p':
5228                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5229                                 param->fp_verbose |= VERBOSE_POOL;
5230                                 param->fp_max_depth = 0;
5231                         }
5232                         break;
5233                 case 'q':
5234                         param->fp_quiet++;
5235                         break;
5236                 case 'r':
5237                         param->fp_recursive = 1;
5238                         break;
5239                 case 'R':
5240                         param->fp_raw = 1;
5241                         break;
5242                 case 'S':
5243                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5244                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
5245                                 param->fp_max_depth = 0;
5246                         }
5247                         break;
5248                 case 'v':
5249                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
5250                         break;
5251                 case 'y':
5252                         param->fp_yaml = 1;
5253                         break;
5254                 case 'z':
5255                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5256                                 param->fp_verbose |= VERBOSE_EXT_SIZE;
5257                                 param->fp_max_depth = 0;
5258                         }
5259                         break;
5260                 default:
5261                         return CMD_HELP;
5262                 }
5263         }
5264
5265         if (pathstart == -1) {
5266                 fprintf(stderr, "error: %s: no filename|pathname\n",
5267                                 argv[0]);
5268                 return CMD_HELP;
5269         } else if (pathend == -1) {
5270                 /* no options */
5271                 pathend = argc;
5272         }
5273
5274         if (pathend > argc)
5275                 return CMD_HELP;
5276
5277         if (param->fp_recursive)
5278                 param->fp_max_depth = -1;
5279         else if (param->fp_verbose & VERBOSE_DETAIL)
5280                 param->fp_max_depth = 1;
5281
5282         if (!param->fp_verbose)
5283                 param->fp_verbose = VERBOSE_DEFAULT;
5284         if (param->fp_quiet)
5285                 param->fp_verbose = VERBOSE_OBJID;
5286
5287         do {
5288                 rc = llapi_getstripe(argv[pathstart], param);
5289         } while (++pathstart < pathend && !rc);
5290
5291         if (rc)
5292                 fprintf(stderr, "error: %s failed for %s.\n",
5293                         argv[0], argv[optind - 1]);
5294         return rc;
5295 }
5296
5297 static int lfs_tgts(int argc, char **argv)
5298 {
5299         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5300         struct find_param param;
5301         int index = 0, rc=0;
5302
5303         if (argc > 2)
5304                 return CMD_HELP;
5305
5306         if (argc == 2 && !realpath(argv[1], path)) {
5307                 rc = -errno;
5308                 fprintf(stderr, "error: invalid path '%s': %s\n",
5309                         argv[1], strerror(-rc));
5310                 return rc;
5311         }
5312
5313         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
5314                 /* Check if we have a mount point */
5315                 if (mntdir[0] == '\0')
5316                         continue;
5317
5318                 memset(&param, 0, sizeof(param));
5319                 if (!strcmp(argv[0], "mdts"))
5320                         param.fp_get_lmv = 1;
5321
5322                 rc = llapi_ostlist(mntdir, &param);
5323                 if (rc) {
5324                         fprintf(stderr, "error: %s: failed on %s\n",
5325                                 argv[0], mntdir);
5326                 }
5327                 if (path[0] != '\0')
5328                         break;
5329                 memset(mntdir, 0, PATH_MAX);
5330         }
5331
5332         return rc;
5333 }
5334
5335 static int lfs_getstripe(int argc, char **argv)
5336 {
5337         struct find_param param = { 0 };
5338
5339         param.fp_max_depth = 1;
5340         return lfs_getstripe_internal(argc, argv, &param);
5341 }
5342
5343 /* functions */
5344 static int lfs_getdirstripe(int argc, char **argv)
5345 {
5346         struct find_param param = { 0 };
5347         struct option long_opts[] = {
5348         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
5349         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5350         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
5351         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
5352         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5353         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5354         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5355         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
5356         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5357         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5358         { .name = NULL } };
5359         int c, rc;
5360
5361         param.fp_get_lmv = 1;
5362
5363         while ((c = getopt_long(argc, argv,
5364                                 "cDHimO:rtTvy", long_opts, NULL)) != -1)
5365         {
5366                 switch (c) {
5367                 case 'c':
5368                 case 'T':
5369                         param.fp_verbose |= VERBOSE_COUNT;
5370                         break;
5371                 case 'D':
5372                         param.fp_get_default_lmv = 1;
5373                         break;
5374                 case 'i':
5375                 case 'm':
5376                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
5377                         break;
5378 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5379                 case 't':
5380                         fprintf(stderr, "warning: '-t' deprecated, "
5381                                 "use '--mdt-hash' or '-H' instead\n");
5382 #endif
5383                 case 'H':
5384                         param.fp_verbose |= VERBOSE_HASH_TYPE;
5385                         break;
5386                 case 'O':
5387                         if (param.fp_obd_uuid) {
5388                                 fprintf(stderr,
5389                                         "error: %s: only one obduuid allowed",
5390                                         argv[0]);
5391                                 return CMD_HELP;
5392                         }
5393                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
5394                         break;
5395                 case 'r':
5396                         param.fp_recursive = 1;
5397                         break;
5398                 case 'v':
5399                         param.fp_verbose |= VERBOSE_DETAIL;
5400                         break;
5401                 case 'y':
5402                         param.fp_yaml = 1;
5403                         break;
5404                 default:
5405                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5406                                 progname, argv[0], argv[optind - 1]);
5407                         return CMD_HELP;
5408                 }
5409         }
5410
5411         if (optind >= argc)
5412                 return CMD_HELP;
5413
5414         if (param.fp_recursive)
5415                 param.fp_max_depth = -1;
5416
5417         if (!param.fp_verbose)
5418                 param.fp_verbose = VERBOSE_DEFAULT;
5419
5420         do {
5421                 rc = llapi_getstripe(argv[optind], &param);
5422         } while (++optind < argc && !rc);
5423
5424         if (rc)
5425                 fprintf(stderr, "error: %s failed for %s.\n",
5426                         argv[0], argv[optind - 1]);
5427         return rc;
5428 }
5429
5430 enum mntdf_flags {
5431         MNTDF_INODES    = 0x0001,
5432         MNTDF_COOKED    = 0x0002,
5433         MNTDF_LAZY      = 0x0004,
5434         MNTDF_VERBOSE   = 0x0008,
5435         MNTDF_SHOW      = 0x0010,
5436 };
5437
5438 #define COOK(value)                                             \
5439 ({                                                              \
5440         int radix = 0;                                          \
5441         while (value > 1024) {                                  \
5442                 value /= 1024;                                  \
5443                 radix++;                                        \
5444         }                                                       \
5445         radix;                                                  \
5446 })
5447 #define UUF     "%-20s"
5448 #define CSF     "%11s"
5449 #define CDF     "%11llu"
5450 #define HDF     "%8.1f%c"
5451 #define RSF     "%4s"
5452 #define RDF     "%3d%%"
5453
5454 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
5455 {
5456         double avail, used, ratio = 0;
5457
5458         if (inodes) {
5459                 avail = st->os_ffree;
5460                 used = st->os_files - st->os_ffree;
5461         } else {
5462                 avail = st->os_bavail;
5463                 used = st->os_blocks - st->os_bfree;
5464         }
5465         if (avail + used > 0)
5466                 ratio = used / (used + avail) * 100;
5467
5468         /* Round up to match df(1) usage percentage */
5469         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
5470 }
5471
5472 /* This is to identify various problem states for "lfs df" if .osn_err = true,
5473  * so only show flags reflecting those states by default. Informational states
5474  * are only shown with "-v" and use lower-case names to distinguish them.
5475  * UNUSED[12] were for "EROFS = 30" until 1.6 but are now available for use.
5476  */
5477 static struct obd_statfs_state_names {
5478         enum obd_statfs_state   osn_state;
5479         const char              osn_name;
5480         bool                    osn_err;
5481 } oss_names[] = {
5482         { .osn_state = OS_STATE_DEGRADED,    .osn_name = 'D', .osn_err = true },
5483         { .osn_state = OS_STATE_READONLY,    .osn_name = 'R', .osn_err = true },
5484         { .osn_state = OS_STATE_NOPRECREATE, .osn_name = 'N', .osn_err = true },
5485         { .osn_state = OS_STATE_UNUSED1,     .osn_name = '?', .osn_err = true },
5486         { .osn_state = OS_STATE_UNUSED2,     .osn_name = '?', .osn_err = true },
5487         { .osn_state = OS_STATE_ENOSPC,      .osn_name = 'S', .osn_err = true },
5488         { .osn_state = OS_STATE_ENOINO,      .osn_name = 'I', .osn_err = true },
5489         { .osn_state = OS_STATE_SUM,         .osn_name = 'a', /* aggregate */ },
5490         { .osn_state = OS_STATE_NONROT,      .osn_name = 'f', /* flash */     },
5491 };
5492
5493 static int showdf(char *mntdir, struct obd_statfs *stat,
5494                   char *uuid, enum mntdf_flags flags,
5495                   char *type, int index, int rc)
5496 {
5497         long long avail, used, total;
5498         int ratio = 0;
5499         char *suffix = "KMGTPEZY";
5500         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
5501         char tbuf[3 * sizeof(__u64)];
5502         char ubuf[3 * sizeof(__u64)];
5503         char abuf[3 * sizeof(__u64)];
5504         char rbuf[3 * sizeof(__u64)];
5505
5506         if (!uuid || !stat)
5507                 return -EINVAL;
5508
5509         switch (rc) {
5510         case 0:
5511                 if (flags & MNTDF_INODES) {
5512                         avail = stat->os_ffree;
5513                         used = stat->os_files - stat->os_ffree;
5514                         total = stat->os_files;
5515                 } else {
5516                         int shift = flags & MNTDF_COOKED ? 0 : 10;
5517
5518                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
5519                         used  = ((stat->os_blocks - stat->os_bfree) *
5520                                  stat->os_bsize) >> shift;
5521                         total = (stat->os_blocks * stat->os_bsize) >> shift;
5522                 }
5523
5524                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
5525
5526                 if (flags & MNTDF_COOKED) {
5527                         int i;
5528                         double cook_val;
5529
5530                         cook_val = (double)total;
5531                         i = COOK(cook_val);
5532                         if (i > 0)
5533                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
5534                                          suffix[i - 1]);
5535                         else
5536                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
5537
5538                         cook_val = (double)used;
5539                         i = COOK(cook_val);
5540                         if (i > 0)
5541                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
5542                                          suffix[i - 1]);
5543                         else
5544                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
5545
5546                         cook_val = (double)avail;
5547                         i = COOK(cook_val);
5548                         if (i > 0)
5549                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
5550                                          suffix[i - 1]);
5551                         else
5552                                 snprintf(abuf, sizeof(abuf), CDF, avail);
5553                 } else {
5554                         snprintf(tbuf, sizeof(tbuf), CDF, total);
5555                         snprintf(ubuf, sizeof(tbuf), CDF, used);
5556                         snprintf(abuf, sizeof(tbuf), CDF, avail);
5557                 }
5558
5559                 sprintf(rbuf, RDF, ratio);
5560                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
5561                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
5562                 if (type)
5563                         printf("[%s:%d]", type, index);
5564
5565                 if (stat->os_state) {
5566                         uint32_t i;
5567
5568                         printf(" ");
5569                         for (i = 0; i < ARRAY_SIZE(oss_names); i++) {
5570                                 if (oss_names[i].osn_state & stat->os_state &&
5571                                     (oss_names[i].osn_err ||
5572                                      flags & MNTDF_VERBOSE))
5573                                         printf("%c", oss_names[i].osn_name);
5574                         }
5575                 }
5576
5577                 printf("\n");
5578                 break;
5579         case -ENODATA:
5580                 printf(UUF": inactive device\n", uuid);
5581                 break;
5582         default:
5583                 printf(UUF": %s\n", uuid, strerror(-rc));
5584                 break;
5585         }
5586
5587         return 0;
5588 }
5589
5590 struct ll_stat_type {
5591         int   st_op;
5592         char *st_name;
5593 };
5594
5595 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
5596
5597 struct ll_statfs_data {
5598         int                     sd_index;
5599         struct obd_statfs       sd_st;
5600 };
5601
5602 struct ll_statfs_buf {
5603         int                     sb_count;
5604         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
5605 };
5606
5607 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
5608                  int ops, struct ll_statfs_buf *lsb)
5609 {
5610         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
5611         struct obd_uuid uuid_buf;
5612         char *poolname = NULL;
5613         struct ll_stat_type types[] = {
5614                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
5615                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
5616                 { .st_name = NULL } };
5617         struct ll_stat_type *tp;
5618         __u64 ost_files = 0;
5619         __u64 ost_ffree = 0;
5620         __u32 index;
5621         __u32 type;
5622         int fd;
5623         int rc = 0;
5624         int rc2;
5625
5626         if (pool) {
5627                 poolname = strchr(pool, '.');
5628                 if (poolname != NULL) {
5629                         if (strncmp(fsname, pool, strlen(fsname))) {
5630                                 fprintf(stderr, "filesystem name incorrect\n");
5631                                 return -ENODEV;
5632                         }
5633                         poolname++;
5634                 } else
5635                         poolname = pool;
5636         }
5637
5638         fd = open(mntdir, O_RDONLY);
5639         if (fd < 0) {
5640                 rc = -errno;
5641                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
5642                         strerror(errno));
5643                 return rc;
5644         }
5645
5646         if (flags & MNTDF_SHOW) {
5647                 if (flags & MNTDF_INODES)
5648                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5649                                "UUID", "Inodes", "IUsed", "IFree",
5650                                "IUse%", "Mounted on");
5651                 else
5652                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5653                                "UUID",
5654                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
5655                                "Used", "Available", "Use%", "Mounted on");
5656         }
5657
5658         for (tp = types; tp->st_name != NULL; tp++) {
5659                 bool have_ost = false;
5660
5661                 if (!(tp->st_op & ops))
5662                         continue;
5663
5664                 for (index = 0; ; index++) {
5665                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
5666                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
5667                         type = flags & MNTDF_LAZY ?
5668                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
5669                         rc2 = llapi_obd_fstatfs(fd, type, index,
5670                                                &stat_buf, &uuid_buf);
5671                         if (rc2 == -ENODEV)
5672                                 break;
5673                         if (rc2 == -EAGAIN)
5674                                 continue;
5675                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
5676                                 if (!(flags & MNTDF_VERBOSE))
5677                                         continue;
5678                         } else if (rc2 < 0 && rc == 0) {
5679                                 rc = rc2;
5680                         }
5681
5682                         /* If we have OSTs then don't report MDT block counts.
5683                          * For MDT-only filesystems the expectation is that all
5684                          * layouts have a DoM component.  For filesystems with
5685                          * OSTs, files are not necessarily going to store data
5686                          * on MDTs, and MDT space is limited to a fraction of
5687                          * OST space, so don't include it in the summary.
5688                          */
5689                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
5690                                 have_ost = true;
5691                                 sum.os_blocks = 0;
5692                                 sum.os_bfree = 0;
5693                                 sum.os_bavail = 0;
5694                         }
5695
5696                         if (poolname && tp->st_op == LL_STATFS_LOV &&
5697                             llapi_search_ost(fsname, poolname,
5698                                              obd_uuid2str(&uuid_buf)) != 1)
5699                                 continue;
5700
5701                         /* the llapi_obd_statfs() call may have returned with
5702                          * an error, but if it filled in uuid_buf we will at
5703                          * lease use that to print out a message for that OBD.
5704                          * If we didn't get anything in the uuid_buf, then fill
5705                          * it in so that we can print an error message. */
5706                         if (uuid_buf.uuid[0] == '\0')
5707                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
5708                                          "%s%04x", tp->st_name, index);
5709                         if (!rc && lsb) {
5710                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
5711                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
5712                                 lsb->sb_count++;
5713                         }
5714                         if (flags & MNTDF_SHOW)
5715                                 showdf(mntdir, &stat_buf,
5716                                        obd_uuid2str(&uuid_buf), flags,
5717                                        tp->st_name, index, rc2);
5718
5719                         if (rc2)
5720                                 continue;
5721
5722                         if (tp->st_op == LL_STATFS_LMV) {
5723                                 sum.os_ffree += stat_buf.os_ffree;
5724                                 sum.os_files += stat_buf.os_files;
5725                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
5726                                 ost_files += stat_buf.os_files;
5727                                 ost_ffree += stat_buf.os_ffree;
5728                         }
5729                         sum.os_blocks += stat_buf.os_blocks *
5730                                          stat_buf.os_bsize;
5731                         sum.os_bfree  += stat_buf.os_bfree *
5732                                          stat_buf.os_bsize;
5733                         sum.os_bavail += stat_buf.os_bavail *
5734                                          stat_buf.os_bsize;
5735                 }
5736         }
5737
5738         close(fd);
5739
5740         /* If we have _some_ OSTs, but don't have as many free objects on the
5741          * OST as inodes on the MDTs, reduce the reported number of inodes
5742          * to compensate, so that the "inodes in use" number is correct.
5743          * This should be kept in sync with ll_statfs_internal().
5744          */
5745         if (ost_files && ost_ffree < sum.os_ffree) {
5746                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
5747                 sum.os_ffree = ost_ffree;
5748         }
5749         if (flags & MNTDF_SHOW) {
5750                 printf("\n");
5751                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
5752                 printf("\n");
5753         }
5754
5755         return rc;
5756 }
5757
5758 /* functions */
5759 static int lfs_setdirstripe(int argc, char **argv)
5760 {
5761         char *dname;
5762         struct lfs_setstripe_args lsa = { 0 };
5763         struct llapi_stripe_param *param = NULL;
5764         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
5765         char *end;
5766         int c;
5767         char *mode_opt = NULL;
5768         bool default_stripe = false;
5769         bool delete = false;
5770         bool foreign_mode = false;
5771         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
5772         mode_t previous_mode = 0;
5773         char *xattr = NULL;
5774         __u32 type = LU_FOREIGN_TYPE_DAOS, flags = 0;
5775         struct option long_opts[] = {
5776         { .val = 'c',   .name = "count",        .has_arg = required_argument },
5777         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
5778         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
5779         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5780         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
5781         { .val = LFS_LAYOUT_FLAGS_OPT,
5782                         .name = "flags",        .has_arg = required_argument },
5783         { .val = LFS_LAYOUT_FOREIGN_OPT,
5784                         .name = "foreign",      .has_arg = optional_argument},
5785         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
5786 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
5787         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
5788         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
5789 #else
5790 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
5791         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5792         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5793 #endif
5794 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5795         { .val = 'i',   .name = "index",        .has_arg = required_argument },
5796 #endif
5797         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
5798 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5799         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
5800 #endif
5801         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
5802 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
5803         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
5804         { .name = NULL } };
5805         int result = 0;
5806
5807         setstripe_args_init(&lsa);
5808
5809         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:x:",
5810                                 long_opts, NULL)) >= 0) {
5811                 switch (c) {
5812                 case 0:
5813                         /* Long options. */
5814                         break;
5815                 case 'c':
5816                 case 'T':
5817                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
5818                         if (*end != '\0') {
5819                                 fprintf(stderr,
5820                                         "%s %s: invalid stripe count '%s'\n",
5821                                         progname, argv[0], optarg);
5822                                 return CMD_HELP;
5823                         }
5824                         break;
5825                 case 'd':
5826                         delete = true;
5827                         default_stripe = true;
5828                         break;
5829                 case 'D':
5830                         default_stripe = true;
5831                         break;
5832                 case LFS_LAYOUT_FOREIGN_OPT:
5833                         if (optarg != NULL) {
5834                                 /* check pure numeric */
5835                                 type = strtoul(optarg, &end, 0);
5836                                 if (*end) {
5837                                         /* check name */
5838                                         type = check_foreign_type_name(optarg);
5839                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
5840                                                 fprintf(stderr,
5841                                                         "%s %s: unknown foreign type '%s'\n",
5842                                                         progname, argv[0],
5843                                                         optarg);
5844                                                 return CMD_HELP;
5845                                         }
5846                                 }
5847                         }
5848                         foreign_mode = true;
5849                         break;
5850                 case LFS_LAYOUT_FLAGS_OPT:
5851                         flags = strtoul(optarg, &end, 16);
5852                         if (*end != '\0') {
5853                                 fprintf(stderr,
5854                                         "%s %s: bad flags '%s'\n",
5855                                         progname, argv[0], optarg);
5856                                 return CMD_HELP;
5857                         }
5858                         break;
5859 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5860                 case 't':
5861                         fprintf(stderr, "warning: '--hash-type' and '-t' "
5862                               "deprecated, use '--mdt-hash' or '-H' instead\n");
5863 #endif
5864                 case 'H':
5865                         lsa.lsa_pattern = check_hashtype(optarg);
5866                         if (lsa.lsa_pattern == 0) {
5867                                 fprintf(stderr,
5868                                         "%s %s: bad stripe hash type '%s'\n",
5869                                         progname, argv[0], optarg);
5870                                 return CMD_HELP;
5871                         }
5872                         break;
5873                 case 'i':
5874 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
5875                 case 'm':
5876 #endif
5877 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5878                         if (strcmp(argv[optind - 1], "--index") == 0)
5879                                 fprintf(stderr,
5880                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
5881                                         progname, argv[0]);
5882 #endif
5883                         lsa.lsa_nr_tgts = parse_targets(mdts,
5884                                                 sizeof(mdts) / sizeof(__u32),
5885                                                 lsa.lsa_nr_tgts, optarg, NULL);
5886                         if (lsa.lsa_nr_tgts < 0) {
5887                                 fprintf(stderr,
5888                                         "%s %s: invalid MDT target(s) '%s'\n",
5889                                         progname, argv[0], optarg);
5890                                 return CMD_HELP;
5891                         }
5892
5893                         lsa.lsa_tgts = mdts;
5894                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5895                                 lsa.lsa_stripe_off = mdts[0];
5896                         break;
5897 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
5898                 case 'm':
5899                         fprintf(stderr, "warning: '-m' is deprecated, "
5900                                 "use '--mode' or '-o' instead\n");
5901 #endif
5902                 case 'o':
5903                         mode_opt = optarg;
5904                         break;
5905                 case 'x':
5906                         xattr = optarg;
5907                         break;
5908                 default:
5909                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5910                                 progname, argv[0], argv[optind - 1]);
5911                         return CMD_HELP;
5912                 }
5913         }
5914
5915         if (optind == argc) {
5916                 fprintf(stderr, "%s %s: DIR must be specified\n",
5917                         progname, argv[0]);
5918                 return CMD_HELP;
5919         }
5920
5921         if (xattr && !foreign_mode) {
5922                 /* only print a warning as this is armless and will be
5923                  * ignored
5924                  */
5925                 fprintf(stderr,
5926                         "%s %s: xattr has been specified for non-foreign layout\n",
5927                         progname, argv[0]);
5928         } else if (foreign_mode && !xattr) {
5929                 fprintf(stderr,
5930                         "%s %s: xattr must be provided in foreign mode\n",
5931                         progname, argv[0]);
5932                 return CMD_HELP;
5933         }
5934
5935         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
5936             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
5937                 fprintf(stderr,
5938                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
5939                         progname, argv[0]);
5940                 return CMD_HELP;
5941         }
5942
5943         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
5944             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
5945                 fprintf(stderr,
5946                         "%s %s: stripe offset and count must be specified\n",
5947                         progname, argv[0]);
5948                 return CMD_HELP;
5949         }
5950
5951         if (delete &&
5952             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
5953              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
5954                 fprintf(stderr,
5955                         "%s %s: cannot specify -d with -c or -i options\n",
5956                         progname, argv[0]);
5957                 return CMD_HELP;
5958         }
5959
5960         if (mode_opt != NULL) {
5961                 mode = strtoul(mode_opt, &end, 8);
5962                 if (*end != '\0') {
5963                         fprintf(stderr,
5964                                 "%s %s: bad MODE '%s'\n",
5965                                 progname, argv[0], mode_opt);
5966                         return CMD_HELP;
5967                 }
5968                 previous_mode = umask(0);
5969         }
5970
5971         /* foreign LMV/dir case */
5972         if (foreign_mode) {
5973                 if (argc > optind + 1) {
5974                         fprintf(stderr,
5975                                 "%s %s: cannot specify multiple foreign dirs\n",
5976                                 progname, argv[0]);
5977                         return CMD_HELP;
5978                 }
5979
5980                 dname = argv[optind];
5981                 result = llapi_dir_create_foreign(dname, mode, type, flags,
5982                                                   xattr);
5983                 if (result != 0)
5984                         fprintf(stderr,
5985                                 "%s mkdir: can't create foreign dir '%s': %s\n",
5986                                 progname, dname, strerror(-result));
5987                 return result;
5988         }
5989
5990         /*
5991          * initialize stripe parameters, in case param is converted to specific,
5992          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
5993          */
5994         param = calloc(1, offsetof(typeof(*param),
5995                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
5996                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
5997         if (param == NULL) {
5998                 fprintf(stderr,
5999                         "%s %s: cannot allocate memory for parameters: %s\n",
6000                         progname, argv[0], strerror(ENOMEM));
6001                 return CMD_HELP;
6002         }
6003
6004         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
6005                 param->lsp_stripe_count = lsa.lsa_stripe_count;
6006         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6007                 param->lsp_stripe_offset = -1;
6008         else
6009                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
6010         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
6011                 param->lsp_stripe_pattern = lsa.lsa_pattern;
6012         else
6013                 param->lsp_stripe_pattern = LMV_HASH_TYPE_DEFAULT;
6014         param->lsp_pool = lsa.lsa_pool_name;
6015         param->lsp_is_specific = false;
6016         if (lsa.lsa_nr_tgts > 1) {
6017                 if (lsa.lsa_stripe_count > 0 &&
6018                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
6019                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
6020                         fprintf(stderr,
6021                                 "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
6022                                 argv[0], lsa.lsa_stripe_count,
6023                                 lsa.lsa_nr_tgts);
6024                         free(param);
6025                         return CMD_HELP;
6026                 }
6027
6028                 param->lsp_is_specific = true;
6029                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
6030                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
6031         }
6032
6033         dname = argv[optind];
6034         do {
6035                 if (default_stripe) {
6036                         result = llapi_dir_set_default_lmv(dname, param);
6037                         if (result)
6038                                 fprintf(stderr,
6039                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
6040                                         progname, dname, strerror(-result));
6041                         continue;
6042                 }
6043
6044                 result = llapi_dir_create(dname, mode, param);
6045                 if (result)
6046                         fprintf(stderr,
6047                                 "%s setdirstripe: cannot create dir '%s': %s\n",
6048                                 progname, dname, strerror(-result));
6049         } while (!result && (dname = argv[++optind]));
6050
6051         if (mode_opt != NULL)
6052                 umask(previous_mode);
6053
6054         free(param);
6055         return result;
6056 }
6057
6058 /* functions */
6059 static int lfs_rmentry(int argc, char **argv)
6060 {
6061         char *dname;
6062         int   index;
6063         int   result = 0;
6064
6065         if (argc <= 1) {
6066                 fprintf(stderr, "error: %s: missing dirname\n",
6067                         argv[0]);
6068                 return CMD_HELP;
6069         }
6070
6071         index = 1;
6072         dname = argv[index];
6073         while (dname != NULL) {
6074                 result = llapi_direntry_remove(dname);
6075                 if (result) {
6076                         fprintf(stderr, "error: %s: remove dir entry '%s' "
6077                                 "failed\n", argv[0], dname);
6078                         break;
6079                 }
6080                 dname = argv[++index];
6081         }
6082         return result;
6083 }
6084
6085 static int lfs_mv(int argc, char **argv)
6086 {
6087         struct lmv_user_md lmu = { LMV_USER_MAGIC };
6088         struct find_param param = {
6089                 .fp_max_depth = -1,
6090                 .fp_mdt_index = -1,
6091         };
6092         char *end;
6093         int c;
6094         int rc = 0;
6095         struct option long_opts[] = {
6096         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6097         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6098         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
6099         { .name = NULL } };
6100
6101         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
6102                 switch (c) {
6103 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6104                 case 'M':
6105                         fprintf(stderr, "warning: '-M' deprecated"
6106                                 ", use '--mdt-index' or '-m' instead\n");
6107 #endif
6108                 case 'm':
6109                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
6110                         if (*end != '\0') {
6111                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
6112                                         progname, optarg);
6113                                 return CMD_HELP;
6114                         }
6115                         break;
6116                 case 'v':
6117                         param.fp_verbose = VERBOSE_DETAIL;
6118                         break;
6119                 default:
6120                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
6121                                 progname, argv[optind - 1]);
6122                         return CMD_HELP;
6123                 }
6124         }
6125
6126         if (lmu.lum_stripe_offset == LMV_OFFSET_DEFAULT) {
6127                 fprintf(stderr, "%s mv: MDT index must be specified\n",
6128                         progname);
6129                 return CMD_HELP;
6130         }
6131
6132         if (optind >= argc) {
6133                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
6134                 return CMD_HELP;
6135         }
6136
6137
6138         /* initialize migrate mdt parameters */
6139         param.fp_lmv_md = &lmu;
6140         param.fp_migrate = 1;
6141         rc = llapi_migrate_mdt(argv[optind], &param);
6142         if (rc != 0)
6143                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
6144                         progname, argv[optind], param.fp_mdt_index,
6145                         strerror(-rc));
6146         return rc;
6147 }
6148
6149 static int lfs_osts(int argc, char **argv)
6150 {
6151         return lfs_tgts(argc, argv);
6152 }
6153
6154 static int lfs_mdts(int argc, char **argv)
6155 {
6156         return lfs_tgts(argc, argv);
6157 }
6158
6159 static int lfs_df(int argc, char **argv)
6160 {
6161         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
6162         enum mntdf_flags flags = MNTDF_SHOW;
6163         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
6164         int c, rc = 0, index = 0;
6165         char fsname[PATH_MAX] = "", *pool_name = NULL;
6166         struct option long_opts[] = {
6167         { .val = 'h',   .name = "human-readable",
6168                                                 .has_arg = no_argument },
6169         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
6170         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
6171         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
6172         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
6173         { .name = NULL} };
6174
6175         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
6176                 switch (c) {
6177                 case 'h':
6178                         flags |= MNTDF_COOKED;
6179                         break;
6180                 case 'i':
6181                         flags |= MNTDF_INODES;
6182                         break;
6183                 case 'l':
6184                         flags |= MNTDF_LAZY;
6185                         break;
6186                 case 'p':
6187                         pool_name = optarg;
6188                         break;
6189                 case 'v':
6190                         flags |= MNTDF_VERBOSE;
6191                         break;
6192                 default:
6193                         return CMD_HELP;
6194                 }
6195         }
6196         if (optind < argc && !realpath(argv[optind], path)) {
6197                 rc = -errno;
6198                 fprintf(stderr, "error: invalid path '%s': %s\n",
6199                         argv[optind], strerror(-rc));
6200                 return rc;
6201         }
6202
6203         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
6204                 /* Check if we have a mount point */
6205                 if (mntdir[0] == '\0')
6206                         continue;
6207
6208                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
6209                 if (rc || path[0] != '\0')
6210                         break;
6211                 fsname[0] = '\0'; /* avoid matching in next loop */
6212                 mntdir[0] = '\0'; /* avoid matching in next loop */
6213         }
6214
6215         return rc;
6216 }
6217
6218 static int print_instance(const char *mntdir, char *buf, size_t buflen,
6219                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
6220 {
6221         int rc = 0;
6222
6223         if (opt_fsname == opt_instance) { /* both true or both false */
6224                 rc = llapi_getname(mntdir, buf, buflen);
6225         } else if (opt_fsname) {
6226                 /* llapi_search_mounts() fills @buf with fsname, but that is not
6227                  * called if explicit paths are specified on the command-line
6228                  */
6229                 if (buf[0] == '\0')
6230                         rc = llapi_get_fsname(mntdir, buf, buflen);
6231         } else /* if (opt_instance) */ {
6232                 rc = llapi_get_instance(mntdir, buf, buflen);
6233         }
6234
6235         if (rc < 0) {
6236                 fprintf(stderr, "cannot get instance for '%s': %s\n",
6237                         mntdir, strerror(-rc));
6238                 return rc;
6239         }
6240
6241         if (opt_mntdir)
6242                 printf("%s %s\n", buf, mntdir);
6243         else
6244                 printf("%s\n", buf);
6245
6246         return 0;
6247 }
6248
6249 static int lfs_getname(int argc, char **argv)
6250 {
6251         struct option long_opts[] = {
6252         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6253         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
6254         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
6255         { .name = NULL} };
6256         bool opt_instance = false, opt_fsname = false;
6257         char fsname[PATH_MAX] = "";
6258         int rc = 0, rc2, c;
6259
6260         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
6261                 switch (c) {
6262                 case 'i':
6263                         opt_instance = true;
6264                         break;
6265                 case 'n':
6266                         opt_fsname = true;
6267                         break;
6268                 case 'h':
6269                 default:
6270                         return CMD_HELP;
6271                 }
6272         }
6273
6274         if (optind == argc) { /* no paths specified, get all paths. */
6275                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
6276                 int index = 0;
6277
6278                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
6279                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
6280                                              opt_instance, opt_fsname, true);
6281                         if (!rc)
6282                                 rc = rc2;
6283                         path[0] = fsname[0] = mntdir[0] = '\0';
6284                 }
6285         } else { /* paths specified, only attempt to search these. */
6286                 bool opt_mntdir;
6287
6288                 /* if only one path is given, print only requested info */
6289                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
6290
6291                 for (; optind < argc; optind++) {
6292                         rc2 = print_instance(argv[optind], fsname,
6293                                              sizeof(fsname), opt_instance,
6294                                              opt_fsname, opt_mntdir);
6295                         if (!rc)
6296                                 rc = rc2;
6297                         fsname[0] = '\0';
6298                 }
6299         }
6300
6301         return rc;
6302 }
6303
6304 static int lfs_check(int argc, char **argv)
6305 {
6306         char mntdir[PATH_MAX] = {'\0'};
6307         int num_types = 1;
6308         char *obd_types[3];
6309         char obd_type1[4];
6310         char obd_type2[4];
6311         char obd_type3[4];
6312         int rc;
6313
6314         if (argc != 2) {
6315                 fprintf(stderr, "%s check: server type must be specified\n",
6316                         progname);
6317                 return CMD_HELP;
6318         }
6319
6320         obd_types[0] = obd_type1;
6321         obd_types[1] = obd_type2;
6322         obd_types[2] = obd_type3;
6323
6324         if (strcmp(argv[1], "osts") == 0) {
6325                 strcpy(obd_types[0], "osc");
6326         } else if (strcmp(argv[1], "mdts") == 0 ||
6327                    strcmp(argv[1], "mds") == 0) {
6328                 strcpy(obd_types[0], "mdc");
6329         } else if (strcmp(argv[1], "mgts") == 0) {
6330                 strcpy(obd_types[0], "mgc");
6331         } else if (strcmp(argv[1], "all") == 0 ||
6332                    strcmp(argv[1], "servers") == 0) {
6333                 num_types = 3;
6334                 strcpy(obd_types[0], "osc");
6335                 strcpy(obd_types[1], "mdc");
6336                 strcpy(obd_types[2], "mgc");
6337         } else {
6338                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
6339                         progname, argv[1]);
6340                 return CMD_HELP;
6341         }
6342
6343         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
6344         if (rc < 0 || mntdir[0] == '\0') {
6345                 fprintf(stderr,
6346                         "%s check: cannot find mounted Lustre filesystem: %s\n",
6347                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
6348                 return rc;
6349         }
6350
6351         rc = llapi_target_check(num_types, obd_types, mntdir);
6352         if (rc)
6353                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
6354                         progname, argv[1], strerror(-rc));
6355
6356         return rc;
6357
6358 }
6359
6360 #ifdef HAVE_SYS_QUOTA_H
6361 #define ARG2INT(nr, str, msg)                                           \
6362 do {                                                                    \
6363         char *endp;                                                     \
6364         nr = strtol(str, &endp, 0);                                     \
6365         if (*endp != '\0') {                                            \
6366                 fprintf(stderr, "%s: bad %s '%s'\n",                    \
6367                         progname, msg, str);                            \
6368                 return CMD_HELP;                                        \
6369         }                                                               \
6370 } while (0)
6371
6372 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
6373
6374 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
6375  * returns the value or ULONG_MAX on integer overflow or incorrect format
6376  * Notes:
6377  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
6378  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
6379  *        3. empty integer value is interpreted as 0
6380  */
6381 static unsigned long str2sec(const char* timestr)
6382 {
6383         const char spec[] = "smhdw";
6384         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
6385         unsigned long val = 0;
6386         char *tail;
6387
6388         if (strpbrk(timestr, spec) == NULL) {
6389                 /* no specifiers inside the time string,
6390                    should treat it as an integer value */
6391                 val = strtoul(timestr, &tail, 10);
6392                 return *tail ? ULONG_MAX : val;
6393         }
6394
6395         /* format string is XXwXXdXXhXXmXXs */
6396         while (*timestr) {
6397                 unsigned long v;
6398                 int ind;
6399                 char* ptr;
6400
6401                 v = strtoul(timestr, &tail, 10);
6402                 if (v == ULONG_MAX || *tail == '\0')
6403                         /* value too large (ULONG_MAX or more)
6404                            or missing specifier */
6405                         goto error;
6406
6407                 ptr = strchr(spec, *tail);
6408                 if (ptr == NULL)
6409                         /* unknown specifier */
6410                         goto error;
6411
6412                 ind = ptr - spec;
6413
6414                 /* check if product will overflow the type */
6415                 if (!(v < ULONG_MAX / mult[ind]))
6416                         goto error;
6417
6418                 ADD_OVERFLOW(val, mult[ind] * v);
6419                 if (val == ULONG_MAX)
6420                         goto error;
6421
6422                 timestr = tail + 1;
6423         }
6424
6425         return val;
6426
6427 error:
6428         return ULONG_MAX;
6429 }
6430
6431 #define ARG2ULL(nr, str, def_units)                                     \
6432 do {                                                                    \
6433         unsigned long long limit, units = def_units;                    \
6434         int rc;                                                         \
6435                                                                         \
6436         rc = llapi_parse_size(str, &limit, &units, 1);                  \
6437         if (rc < 0) {                                                   \
6438                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
6439                         progname, str);                                 \
6440                 return CMD_HELP;                                        \
6441         }                                                               \
6442         nr = limit;                                                     \
6443 } while (0)
6444
6445 static inline int has_times_option(int argc, char **argv)
6446 {
6447         int i;
6448
6449         for (i = 1; i < argc; i++)
6450                 if (!strcmp(argv[i], "-t"))
6451                         return 1;
6452
6453         return 0;
6454 }
6455
6456 int lfs_setquota_times(int argc, char **argv)
6457 {
6458         int c, rc;
6459         struct if_quotactl qctl;
6460         char *mnt, *obd_type = (char *)qctl.obd_type;
6461         struct obd_dqblk *dqb = &qctl.qc_dqblk;
6462         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
6463         struct option long_opts[] = {
6464         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
6465         { .val = 'g',   .name = "group",        .has_arg = no_argument },
6466         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
6467         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
6468         { .val = 't',   .name = "times",        .has_arg = no_argument },
6469         { .val = 'u',   .name = "user",         .has_arg = no_argument },
6470         { .name = NULL } };
6471         int qtype;
6472
6473         memset(&qctl, 0, sizeof(qctl));
6474         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
6475         qctl.qc_type = ALLQUOTA;
6476
6477         while ((c = getopt_long(argc, argv, "b:gi:ptu",
6478                                 long_opts, NULL)) != -1) {
6479                 switch (c) {
6480                 case 'u':
6481                         qtype = USRQUOTA;
6482                         goto quota_type;
6483                 case 'g':
6484                         qtype = GRPQUOTA;
6485                         goto quota_type;
6486                 case 'p':
6487                         qtype = PRJQUOTA;
6488 quota_type:
6489                         if (qctl.qc_type != ALLQUOTA) {
6490                                 fprintf(stderr, "error: -u/g/p can't be used "
6491                                                 "more than once\n");
6492                                 return CMD_HELP;
6493                         }
6494                         qctl.qc_type = qtype;
6495                         break;
6496                 case 'b':
6497                         if ((dqi->dqi_bgrace = str2sec(optarg)) == ULONG_MAX) {
6498                                 fprintf(stderr, "error: bad block-grace: %s\n",
6499                                         optarg);
6500                                 return CMD_HELP;
6501                         }
6502                         dqb->dqb_valid |= QIF_BTIME;
6503                         break;
6504                 case 'i':
6505                         if ((dqi->dqi_igrace = str2sec(optarg)) == ULONG_MAX) {
6506                                 fprintf(stderr, "error: bad inode-grace: %s\n",
6507                                         optarg);
6508                                 return CMD_HELP;
6509                         }
6510                         dqb->dqb_valid |= QIF_ITIME;
6511                         break;
6512                 case 't': /* Yes, of course! */
6513                         break;
6514                 default: /* getopt prints error message for us when opterr != 0 */
6515                         return CMD_HELP;
6516                 }
6517         }
6518
6519         if (qctl.qc_type == ALLQUOTA) {
6520                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
6521                 return CMD_HELP;
6522         }
6523
6524         if (optind != argc - 1) {
6525                 fprintf(stderr, "error: unexpected parameters encountered\n");
6526                 return CMD_HELP;
6527         }
6528
6529         if ((dqb->dqb_valid | QIF_BTIME && dqi->dqi_bgrace >= UINT_MAX) ||
6530             (dqb->dqb_valid | QIF_ITIME && dqi->dqi_igrace >= UINT_MAX)) {
6531                 fprintf(stderr, "error: grace time is too large\n");
6532                 return CMD_HELP;
6533         }
6534
6535         mnt = argv[optind];
6536         rc = llapi_quotactl(mnt, &qctl);
6537         if (rc) {
6538                 if (*obd_type)
6539                         fprintf(stderr, "%s %s ", obd_type,
6540                                 obd_uuid2str(&qctl.obd_uuid));
6541                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
6542                 return rc;
6543         }
6544
6545         return 0;
6546 }
6547
6548 #define BSLIMIT (1 << 0)
6549 #define BHLIMIT (1 << 1)
6550 #define ISLIMIT (1 << 2)
6551 #define IHLIMIT (1 << 3)
6552
6553 int lfs_setquota(int argc, char **argv)
6554 {
6555         int c, rc = 0;
6556         struct if_quotactl qctl;
6557         char *mnt, *obd_type = (char *)qctl.obd_type;
6558         struct obd_dqblk *dqb = &qctl.qc_dqblk;
6559         struct option long_opts[] = {
6560         { .val = 'b',   .name = "block-softlimit",
6561                                                 .has_arg = required_argument },
6562         { .val = 'B',   .name = "block-hardlimit",
6563                                                 .has_arg = required_argument },
6564         { .val = 'd',   .name = "default",      .has_arg = no_argument },
6565         { .val = 'g',   .name = "group",        .has_arg = required_argument },
6566         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
6567         { .val = 'i',   .name = "inode-softlimit",
6568                                                 .has_arg = required_argument },
6569         { .val = 'I',   .name = "inode-hardlimit",
6570                                                 .has_arg = required_argument },
6571         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
6572         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
6573         { .val = 'u',   .name = "user",         .has_arg = required_argument },
6574         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
6575         { .name = NULL } };
6576         unsigned limit_mask = 0;
6577         char *endptr;
6578         bool use_default = false;
6579         int qtype;
6580
6581         if (has_times_option(argc, argv))
6582                 return lfs_setquota_times(argc, argv);
6583
6584         memset(&qctl, 0, sizeof(qctl));
6585         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
6586         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
6587                                   * so it can be used as a marker that qc_type
6588                                   * isn't reinitialized from command line */
6589
6590         while ((c = getopt_long(argc, argv, "b:B:dg:Gi:I:p:Pu:U",
6591                 long_opts, NULL)) != -1) {
6592                 switch (c) {
6593                 case 'U':
6594                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6595                         qtype = USRQUOTA;
6596                         qctl.qc_id = 0;
6597                         goto quota_type_def;
6598                 case 'u':
6599                         qtype = USRQUOTA;
6600                         rc = name2uid(&qctl.qc_id, optarg);
6601                         goto quota_type;
6602                 case 'G':
6603                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6604                         qtype = GRPQUOTA;
6605                         qctl.qc_id = 0;
6606                         goto quota_type_def;
6607                 case 'g':
6608                         qtype = GRPQUOTA;
6609                         rc = name2gid(&qctl.qc_id, optarg);
6610                         goto quota_type;
6611                 case 'P':
6612                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6613                         qtype = PRJQUOTA;
6614                         qctl.qc_id = 0;
6615                         goto quota_type_def;
6616                 case 'p':
6617                         qtype = PRJQUOTA;
6618                         rc = name2projid(&qctl.qc_id, optarg);
6619 quota_type:
6620                         if (rc) {
6621                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
6622                                 if (*endptr != '\0') {
6623                                         fprintf(stderr, "%s setquota: invalid"
6624                                                 " id '%s'\n", progname, optarg);
6625                                         return -1;
6626                                 }
6627                         }
6628
6629                         if (qctl.qc_id == 0) {
6630                                 fprintf(stderr, "%s setquota: can't set quota"
6631                                         " for root usr/group/project.\n",
6632                                         progname);
6633                                 return -1;
6634                         }
6635
6636 quota_type_def:
6637                         if (qctl.qc_type != ALLQUOTA) {
6638                                 fprintf(stderr,
6639                                         "%s setquota: only one of -u, -U, -g,"
6640                                         " -G, -p or -P may be specified\n",
6641                                         progname);
6642                                 return CMD_HELP;
6643                         }
6644                         qctl.qc_type = qtype;
6645                         break;
6646                 case 'd':
6647                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6648                         use_default = true;
6649                         break;
6650                 case 'b':
6651                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
6652                         dqb->dqb_bsoftlimit >>= 10;
6653                         limit_mask |= BSLIMIT;
6654                         if (dqb->dqb_bsoftlimit &&
6655                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
6656                                 fprintf(stderr,
6657                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\n"
6658                                         "See '%s help setquota' or Lustre manual for details\n",
6659                                         progname,
6660                                         (unsigned long long)dqb->dqb_bsoftlimit,
6661                                         progname);
6662                         break;
6663                 case 'B':
6664                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
6665                         dqb->dqb_bhardlimit >>= 10;
6666                         limit_mask |= BHLIMIT;
6667                         if (dqb->dqb_bhardlimit &&
6668                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
6669                                 fprintf(stderr,
6670                                         "%s setquota: warning: block hardlimit '%llu' smaller than minimum qunit size\n"
6671                                         "See '%s help setquota' or Lustre manual for details\n",
6672                                         progname,
6673                                         (unsigned long long)dqb->dqb_bhardlimit,
6674                                         progname);
6675                         break;
6676                 case 'i':
6677                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
6678                         limit_mask |= ISLIMIT;
6679                         if (dqb->dqb_isoftlimit &&
6680                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
6681                                 fprintf(stderr,
6682                                         "%s setquota: warning: inode softlimit '%llu' smaller than minimum qunit size\n"
6683                                         "See '%s help setquota' or Lustre manual for details\n",
6684                                         progname,
6685                                         (unsigned long long)dqb->dqb_isoftlimit,
6686                                         progname);
6687                         break;
6688                 case 'I':
6689                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
6690                         limit_mask |= IHLIMIT;
6691                         if (dqb->dqb_ihardlimit &&
6692                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
6693                                 fprintf(stderr,
6694                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\n"
6695                                         "See '%s help setquota' or Lustre manual for details\n",
6696                                         progname,
6697                                         (unsigned long long)dqb->dqb_ihardlimit,
6698                                         progname);
6699                         break;
6700                 default:
6701                         fprintf(stderr,
6702                                 "%s setquota: unrecognized option '%s'\n",
6703                                 progname, argv[optind - 1]);
6704                         return CMD_HELP;
6705                 }
6706         }
6707
6708         if (qctl.qc_type == ALLQUOTA) {
6709                 fprintf(stderr,
6710                         "%s setquota: either -u or -g must be specified\n",
6711                         progname);
6712                 return CMD_HELP;
6713         }
6714
6715         if (!use_default && limit_mask == 0) {
6716                 fprintf(stderr,
6717                         "%s setquota: at least one limit must be specified\n",
6718                         progname);
6719                 return CMD_HELP;
6720         }
6721
6722         if (use_default && limit_mask != 0) {
6723                 fprintf(stderr,
6724                         "%s setquota: limits should not be specified when"
6725                         " using default quota\n",
6726                         progname);
6727                 return CMD_HELP;
6728         }
6729
6730         if (use_default && qctl.qc_id == 0) {
6731                 fprintf(stderr,
6732                         "%s setquota: can not set default quota for root"
6733                         " user/group/project\n",
6734                         progname);
6735                 return CMD_HELP;
6736         }
6737
6738         if (optind != argc - 1) {
6739                 fprintf(stderr,
6740                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
6741                         progname, argv[optind]);
6742                 return CMD_HELP;
6743         }
6744
6745         mnt = argv[optind];
6746
6747         if (use_default) {
6748                 dqb->dqb_bhardlimit = 0;
6749                 dqb->dqb_bsoftlimit = 0;
6750                 dqb->dqb_ihardlimit = 0;
6751                 dqb->dqb_isoftlimit = 0;
6752                 dqb->dqb_itime = 0;
6753                 dqb->dqb_btime = 0;
6754                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
6755         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
6756                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
6757                 /* sigh, we can't just set blimits/ilimits */
6758                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
6759                                                .qc_type = qctl.qc_type,
6760                                                .qc_id   = qctl.qc_id};
6761
6762                 rc = llapi_quotactl(mnt, &tmp_qctl);
6763                 if (rc < 0)
6764                         return rc;
6765
6766                 if (!(limit_mask & BHLIMIT))
6767                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
6768                 if (!(limit_mask & BSLIMIT))
6769                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
6770                 if (!(limit_mask & IHLIMIT))
6771                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
6772                 if (!(limit_mask & ISLIMIT))
6773                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
6774
6775                 /* Keep grace times if we have got no softlimit arguments */
6776                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
6777                         dqb->dqb_valid |= QIF_BTIME;
6778                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
6779                 }
6780
6781                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
6782                         dqb->dqb_valid |= QIF_ITIME;
6783                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
6784                 }
6785         }
6786
6787         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
6788         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
6789
6790         rc = llapi_quotactl(mnt, &qctl);
6791         if (rc) {
6792                 if (*obd_type)
6793                         fprintf(stderr,
6794                                 "%s setquota: cannot quotactl '%s' '%s': %s",
6795                                 progname, obd_type,
6796                                 obd_uuid2str(&qctl.obd_uuid), strerror(-rc));
6797                 return rc;
6798         }
6799
6800         return 0;
6801 }
6802
6803 /* Converts seconds value into format string
6804  * result is returned in buf
6805  * Notes:
6806  *        1. result is in descenting order: 1w2d3h4m5s
6807  *        2. zero fields are not filled (except for p. 3): 5d1s
6808  *        3. zero seconds value is presented as "0s"
6809  */
6810 static char * __sec2str(time_t seconds, char *buf)
6811 {
6812         const char spec[] = "smhdw";
6813         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
6814         unsigned long c;
6815         char *tail = buf;
6816         int i;
6817
6818         for (i = ARRAY_SIZE(mult) - 1 ; i >= 0; i--) {
6819                 c = seconds / mult[i];
6820
6821                 if (c > 0 || (i == 0 && buf == tail))
6822                         tail += scnprintf(tail, 40-(tail-buf), "%lu%c", c,
6823                                           spec[i]);
6824
6825                 seconds %= mult[i];
6826         }
6827
6828         return tail;
6829 }
6830
6831 static void sec2str(time_t seconds, char *buf, int rc)
6832 {
6833         char *tail = buf;
6834
6835         if (rc)
6836                 *tail++ = '[';
6837
6838         tail = __sec2str(seconds, tail);
6839
6840         if (rc && tail - buf < 39) {
6841                 *tail++ = ']';
6842                 *tail++ = 0;
6843         }
6844 }
6845
6846 static void diff2str(time_t seconds, char *buf, time_t now)
6847 {
6848
6849         buf[0] = 0;
6850         if (!seconds)
6851                 return;
6852         if (seconds <= now) {
6853                 strcpy(buf, "none");
6854                 return;
6855         }
6856         __sec2str(seconds - now, buf);
6857 }
6858
6859 static void print_quota_title(char *name, struct if_quotactl *qctl,
6860                               bool human_readable, bool show_default)
6861 {
6862         if (show_default) {
6863                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
6864                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
6865                        "Filesystem", "bquota", "blimit", "bgrace",
6866                        "iquota", "ilimit", "igrace");
6867         } else {
6868                 printf("Disk quotas for %s %s (%cid %u):\n",
6869                        qtype_name(qctl->qc_type), name,
6870                        *qtype_name(qctl->qc_type), qctl->qc_id);
6871                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
6872                        "Filesystem", human_readable ? "used" : "kbytes",
6873                        "quota", "limit", "grace",
6874                        "files", "quota", "limit", "grace");
6875         }
6876 }
6877
6878 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
6879 {
6880         if (!h) {
6881                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
6882         } else {
6883                 if (num >> 40)
6884                         snprintf(buf, buflen, "%5.4gP",
6885                                  (double)num / ((__u64)1 << 40));
6886                 else if (num >> 30)
6887                         snprintf(buf, buflen, "%5.4gT",
6888                                  (double)num / (1 << 30));
6889                 else if (num >> 20)
6890                         snprintf(buf, buflen, "%5.4gG",
6891                                  (double)num / (1 << 20));
6892                 else if (num >> 10)
6893                         snprintf(buf, buflen, "%5.4gM",
6894                                  (double)num / (1 << 10));
6895                 else
6896                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
6897         }
6898 }
6899
6900 #define STRBUF_LEN      32
6901 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
6902                         int rc, bool h, bool show_default)
6903 {
6904         time_t now;
6905
6906         time(&now);
6907
6908         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
6909             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) {
6910                 int bover = 0, iover = 0;
6911                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
6912                 char numbuf[3][STRBUF_LEN];
6913                 char timebuf[40];
6914                 char strbuf[STRBUF_LEN];
6915
6916                 if (dqb->dqb_bhardlimit &&
6917                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
6918                         bover = 1;
6919                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
6920                         if (dqb->dqb_btime > now) {
6921                                 bover = 2;
6922                         } else {
6923                                 bover = 3;
6924                         }
6925                 }
6926
6927                 if (dqb->dqb_ihardlimit &&
6928                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
6929                         iover = 1;
6930                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
6931                         if (dqb->dqb_itime > now) {
6932                                 iover = 2;
6933                         } else {
6934                                 iover = 3;
6935                         }
6936                 }
6937
6938
6939                 if (strlen(mnt) > 15)
6940                         printf("%s\n%15s", mnt, "");
6941                 else
6942                         printf("%15s", mnt);
6943
6944                 if (bover)
6945                         diff2str(dqb->dqb_btime, timebuf, now);
6946                 else if (show_default)
6947                         snprintf(timebuf, sizeof(timebuf), "%llu",
6948                                  (unsigned long long)dqb->dqb_btime);
6949
6950                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
6951                            strbuf, sizeof(strbuf), h);
6952                 if (rc == -EREMOTEIO)
6953                         sprintf(numbuf[0], "%s*", strbuf);
6954                 else
6955                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
6956                                 "%s" : "[%s]", strbuf);
6957
6958                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
6959                 if (type == QC_GENERAL)
6960                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
6961                                 "%s" : "[%s]", strbuf);
6962                 else
6963                         sprintf(numbuf[1], "%s", "-");
6964
6965                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
6966                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
6967                         "%s" : "[%s]", strbuf);
6968
6969                 if (show_default)
6970                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6971                 else
6972                         printf(" %7s%c %6s %7s %7s",
6973                                numbuf[0], bover ? '*' : ' ', numbuf[1],
6974                                numbuf[2], bover > 1 ? timebuf : "-");
6975
6976
6977                 if (iover)
6978                         diff2str(dqb->dqb_itime, timebuf, now);
6979                 else if (show_default)
6980                         snprintf(timebuf, sizeof(timebuf), "%llu",
6981                                  (unsigned long long)dqb->dqb_itime);
6982
6983                 snprintf(numbuf[0], sizeof(numbuf),
6984                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
6985                          (uintmax_t)dqb->dqb_curinodes);
6986
6987                 if (type == QC_GENERAL)
6988                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
6989                                 "%ju" : "[%ju]",
6990                                 (uintmax_t)dqb->dqb_isoftlimit);
6991                 else
6992                         sprintf(numbuf[1], "%s", "-");
6993
6994                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
6995                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
6996
6997                 if (show_default)
6998                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6999                 else if (type != QC_OSTIDX)
7000                         printf(" %7s%c %6s %7s %7s",
7001                                numbuf[0], iover ? '*' : ' ', numbuf[1],
7002                                numbuf[2], iover > 1 ? timebuf : "-");
7003                 else
7004                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
7005                 printf("\n");
7006
7007         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
7008                    qctl->qc_cmd == Q_GETOINFO) {
7009                 char bgtimebuf[40];
7010                 char igtimebuf[40];
7011
7012                 sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
7013                 sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
7014                 printf("Block grace time: %s; Inode grace time: %s\n",
7015                        bgtimebuf, igtimebuf);
7016         }
7017 }
7018
7019 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
7020                            bool h, __u64 *total)
7021 {
7022         int rc = 0, rc1 = 0, count = 0;
7023         __u32 valid = qctl->qc_valid;
7024
7025         rc = llapi_get_obd_count(mnt, &count, is_mdt);
7026         if (rc) {
7027                 fprintf(stderr, "can not get %s count: %s\n",
7028                         is_mdt ? "mdt": "ost", strerror(-rc));
7029                 return rc;
7030         }
7031
7032         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
7033                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
7034                 rc = llapi_quotactl(mnt, qctl);
7035                 if (rc) {
7036                         /* It is remote client case. */
7037                         if (rc == -EOPNOTSUPP) {
7038                                 rc = 0;
7039                                 goto out;
7040                         }
7041
7042                         if (!rc1)
7043                                 rc1 = rc;
7044                         fprintf(stderr, "quotactl %s%d failed.\n",
7045                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
7046                         continue;
7047                 }
7048
7049                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
7050                             qctl->qc_valid, 0, h, false);
7051                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
7052                                    qctl->qc_dqblk.dqb_bhardlimit;
7053         }
7054 out:
7055         qctl->qc_valid = valid;
7056         return rc ? : rc1;
7057 }
7058
7059 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
7060                            int verbose, int quiet, bool human_readable,
7061                            bool show_default)
7062 {
7063         int rc1 = 0, rc2 = 0, rc3 = 0;
7064         char *obd_type = (char *)qctl->obd_type;
7065         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
7066         __u64 total_ialloc = 0, total_balloc = 0;
7067         bool use_default_for_blk = false;
7068         bool use_default_for_file = false;
7069         int inacc;
7070
7071         rc1 = llapi_quotactl(mnt, qctl);
7072         if (rc1 < 0) {
7073                 switch (rc1) {
7074                 case -ESRCH:
7075                         fprintf(stderr, "%s quotas are not enabled.\n",
7076                                 qtype_name(qctl->qc_type));
7077                         goto out;
7078                 case -EPERM:
7079                         fprintf(stderr, "Permission denied.\n");
7080                 case -ENODEV:
7081                 case -ENOENT:
7082                         /* We already got error message. */
7083                         goto out;
7084                 default:
7085                         fprintf(stderr, "Unexpected quotactl error: %s\n",
7086                                 strerror(-rc1));
7087                 }
7088         }
7089
7090         if (!show_default && qctl->qc_id == 0) {
7091                 qctl->qc_dqblk.dqb_bhardlimit = 0;
7092                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
7093                 qctl->qc_dqblk.dqb_ihardlimit = 0;
7094                 qctl->qc_dqblk.dqb_isoftlimit = 0;
7095                 qctl->qc_dqblk.dqb_btime = 0;
7096                 qctl->qc_dqblk.dqb_itime = 0;
7097                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
7098         }
7099
7100         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
7101             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
7102                 use_default_for_blk = true;
7103                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
7104         }
7105
7106         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
7107             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
7108                 use_default_for_file = true;
7109                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
7110         }
7111
7112         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7113              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
7114                 print_quota_title(name, qctl, human_readable, show_default);
7115
7116         if (rc1 && *obd_type)
7117                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
7118
7119         if (qctl->qc_valid != QC_GENERAL)
7120                 mnt = "";
7121
7122         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA) &&
7123                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
7124                  (QIF_LIMITS|QIF_USAGE));
7125
7126         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
7127
7128         if (!show_default && verbose &&
7129             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO) {
7130                 char strbuf[STRBUF_LEN];
7131
7132                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
7133                                       &total_ialloc);
7134                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
7135                                       &total_balloc);
7136                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
7137                            human_readable);
7138                 printf("Total allocated inode limit: %ju, total "
7139                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
7140                        strbuf);
7141         }
7142
7143         if (use_default_for_blk)
7144                 printf("%cid %u is using default block quota setting\n",
7145                        *qtype_name(qctl->qc_type), qctl->qc_id);
7146
7147         if (use_default_for_file)
7148                 printf("%cid %u is using default file quota setting\n",
7149                        *qtype_name(qctl->qc_type), qctl->qc_id);
7150
7151         if (rc1 || rc2 || rc3 || inacc)
7152                 printf("Some errors happened when getting quota info. "
7153                        "Some devices may be not working or deactivated. "
7154                        "The data in \"[]\" is inaccurate.\n");
7155 out:
7156         if (rc1)
7157                 return rc1;
7158         if (rc2)
7159                 return rc2;
7160         if (rc3)
7161                 return rc3;
7162         if (inacc)
7163                 return -EIO;
7164
7165         return 0;
7166 }
7167
7168 static int lfs_project(int argc, char **argv)
7169 {
7170         int ret = 0, err = 0, c, i;
7171         struct project_handle_control phc = { 0 };
7172         enum lfs_project_ops_t op;
7173
7174         phc.newline = true;
7175         phc.assign_projid = false;
7176         /* default action */
7177         op = LFS_PROJECT_LIST;
7178
7179         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
7180                 switch (c) {
7181                 case 'c':
7182                         if (op != LFS_PROJECT_LIST) {
7183                                 fprintf(stderr,
7184                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7185                                         progname);
7186                                 return CMD_HELP;
7187                         }
7188
7189                         op = LFS_PROJECT_CHECK;
7190                         break;
7191                 case 'C':
7192                         if (op != LFS_PROJECT_LIST) {
7193                                 fprintf(stderr,
7194                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7195                                         progname);
7196                                 return CMD_HELP;
7197                         }
7198
7199                         op = LFS_PROJECT_CLEAR;
7200                         break;
7201                 case 's':
7202                         if (op != LFS_PROJECT_LIST) {
7203                                 fprintf(stderr,
7204                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7205                                         progname);
7206                                 return CMD_HELP;
7207                         }
7208
7209                         phc.set_inherit = true;
7210                         op = LFS_PROJECT_SET;
7211                         break;
7212                 case 'd':
7213                         phc.dironly = true;
7214                         break;
7215                 case 'k':
7216                         phc.keep_projid = true;
7217                         break;
7218                 case 'r':
7219                         phc.recursive = true;
7220                         break;
7221                 case 'p':
7222                         phc.projid = strtoul(optarg, NULL, 0);
7223                         phc.assign_projid = true;
7224
7225                         break;
7226                 case '0':
7227                         phc.newline = false;
7228                         break;
7229                 default:
7230                         fprintf(stderr, "%s: invalid option '%c'\n",
7231                                 progname, optopt);
7232                         return CMD_HELP;
7233                 }
7234         }
7235
7236         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
7237                 op = LFS_PROJECT_SET;
7238                 phc.set_projid = true;
7239         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
7240                 phc.set_projid = true;
7241         }
7242
7243         switch (op) {
7244         case LFS_PROJECT_CHECK:
7245                 if (phc.keep_projid) {
7246                         fprintf(stderr,
7247                                 "%s: '-k' is useless together with '-c'\n",
7248                                 progname);
7249                         return CMD_HELP;
7250                 }
7251                 break;
7252         case LFS_PROJECT_CLEAR:
7253                 if (!phc.newline) {
7254                         fprintf(stderr,
7255                                 "%s: '-0' is useless together with '-C'\n",
7256                                 progname);
7257                         return CMD_HELP;
7258                 }
7259                 if (phc.assign_projid) {
7260                         fprintf(stderr,
7261                                 "%s: '-p' is useless together with '-C'\n",
7262                                 progname);
7263                         return CMD_HELP;
7264                 }
7265                 break;
7266         case LFS_PROJECT_SET:
7267                 if (!phc.newline) {
7268                         fprintf(stderr,
7269                                 "%s: '-0' is useless together with '-s'\n",
7270                                 progname);
7271                         return CMD_HELP;
7272                 }
7273                 if (phc.keep_projid) {
7274                         fprintf(stderr,
7275                                 "%s: '-k' is useless together with '-s'\n",
7276                                 progname);
7277                         return CMD_HELP;
7278                 }
7279                 break;
7280         default:
7281                 if (!phc.newline) {
7282                         fprintf(stderr,
7283                                 "%s: '-0' is useless for list operations\n",
7284                                 progname);
7285                         return CMD_HELP;
7286                 }
7287                 break;
7288         }
7289
7290         argv += optind;
7291         argc -= optind;
7292         if (argc == 0) {
7293                 fprintf(stderr, "%s: missing file or directory target(s)\n",
7294                         progname);
7295                 return CMD_HELP;
7296         }
7297
7298         for (i = 0; i < argc; i++) {
7299                 switch (op) {
7300                 case LFS_PROJECT_CHECK:
7301                         err = lfs_project_check(argv[i], &phc);
7302                         break;
7303                 case LFS_PROJECT_LIST:
7304                         err = lfs_project_list(argv[i], &phc);
7305                         break;
7306                 case LFS_PROJECT_CLEAR:
7307                         err = lfs_project_clear(argv[i], &phc);
7308                         break;
7309                 case LFS_PROJECT_SET:
7310                         err = lfs_project_set(argv[i], &phc);
7311                         break;
7312                 default:
7313                         break;
7314                 }
7315                 if (err && !ret)
7316                         ret = err;
7317         }
7318
7319         return ret;
7320 }
7321
7322 static int lfs_quota(int argc, char **argv)
7323 {
7324         int c;
7325         char *mnt, *name = NULL;
7326         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
7327                                     .qc_type = ALLQUOTA };
7328         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
7329         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
7330         char *endptr;
7331         __u32 valid = QC_GENERAL, idx = 0;
7332         bool human_readable = false;
7333         bool show_default = false;
7334         int qtype;
7335
7336         while ((c = getopt(argc, argv, "gGi:I:o:pPqtuUvh")) != -1) {
7337                 switch (c) {
7338                 case 'U':
7339                         show_default = true;
7340                 case 'u':
7341                         qtype = USRQUOTA;
7342                         goto quota_type;
7343                 case 'G':
7344                         show_default = true;
7345                 case 'g':
7346                         qtype = GRPQUOTA;
7347                         goto quota_type;
7348                 case 'P':
7349                         show_default = true;
7350                 case 'p':
7351                         qtype = PRJQUOTA;
7352 quota_type:
7353                         if (qctl.qc_type != ALLQUOTA) {
7354                                 fprintf(stderr,
7355                                         "%s quota: only one of -u, -g, or -p may be specified\n",
7356                                         progname);
7357                                 return CMD_HELP;
7358                         }
7359                         qctl.qc_type = qtype;
7360                         break;
7361                 case 't':
7362                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
7363                         break;
7364                 case 'o':
7365                         valid = qctl.qc_valid = QC_UUID;
7366                         snprintf(obd_uuid, sizeof(qctl.obd_uuid), "%s", optarg);
7367                         break;
7368                 case 'i':
7369                         valid = qctl.qc_valid = QC_MDTIDX;
7370                         idx = qctl.qc_idx = atoi(optarg);
7371                         if (idx == 0 && *optarg != '0') {
7372                                 fprintf(stderr,
7373                                         "%s quota: invalid MDT index '%s'\n",
7374                                         progname, optarg);
7375                                 return CMD_HELP;
7376                         }
7377                         break;
7378                 case 'I':
7379                         valid = qctl.qc_valid = QC_OSTIDX;
7380                         idx = qctl.qc_idx = atoi(optarg);
7381                         if (idx == 0 && *optarg != '0') {
7382                                 fprintf(stderr,
7383                                         "%s quota: invalid OST index '%s'\n",
7384                                         progname, optarg);
7385                                 return CMD_HELP;
7386                         }
7387                         break;
7388                 case 'v':
7389                         verbose = 1;
7390                         break;
7391                 case 'q':
7392                         quiet = 1;
7393                         break;
7394                 case 'h':
7395                         human_readable = true;
7396                         break;
7397                 default:
7398                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
7399                                 progname, argv[optind - 1]);
7400                         return CMD_HELP;
7401                 }
7402         }
7403
7404         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
7405         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
7406             optind == argc - 1 && !show_default) {
7407
7408                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
7409                 qctl.qc_idx = idx;
7410
7411                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
7412                         qctl.qc_type = qtype;
7413                         qctl.qc_valid = valid;
7414                         if (qtype == USRQUOTA) {
7415                                 qctl.qc_id = geteuid();
7416                                 rc = uid2name(&name, qctl.qc_id);
7417                         } else {
7418                                 qctl.qc_id = getegid();
7419                                 rc = gid2name(&name, qctl.qc_id);
7420                                 memset(&qctl.qc_dqblk, 0,
7421                                        sizeof(qctl.qc_dqblk));
7422                         }
7423                         if (rc)
7424                                 name = "<unknown>";
7425                         mnt = argv[optind];
7426                         rc1 = get_print_quota(mnt, name, &qctl, verbose, quiet,
7427                                               human_readable, show_default);
7428                         if (rc1 && !rc)
7429                                 rc = rc1;
7430                 }
7431                 return rc;
7432         /* lfs quota -u username /path/to/lustre/mount */
7433         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
7434                 /* options should be followed by u/g-name and mntpoint */
7435                 if ((!show_default && optind + 2 != argc) ||
7436                     (show_default && optind + 1 != argc) ||
7437                     qctl.qc_type == ALLQUOTA) {
7438                         fprintf(stderr,
7439                                 "%s quota: name and mount point must be specified\n",
7440                                 progname);
7441                         return CMD_HELP;
7442                 }
7443
7444                 if (!show_default) {
7445                         name = argv[optind++];
7446                         switch (qctl.qc_type) {
7447                         case USRQUOTA:
7448                                 rc = name2uid(&qctl.qc_id, name);
7449                                 break;
7450                         case GRPQUOTA:
7451                                 rc = name2gid(&qctl.qc_id, name);
7452                                 break;
7453                         case PRJQUOTA:
7454                                 rc = name2projid(&qctl.qc_id, name);
7455                                 break;
7456                         default:
7457                                 rc = -ENOTSUP;
7458                                 break;
7459                         }
7460                 } else {
7461                         qctl.qc_valid = QC_GENERAL;
7462                         qctl.qc_cmd = LUSTRE_Q_GETDEFAULT;
7463                         qctl.qc_id = 0;
7464                 }
7465
7466                 if (rc) {
7467                         qctl.qc_id = strtoul(name, &endptr, 10);
7468                         if (*endptr != '\0') {
7469                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
7470                                         progname, name);
7471                                 return CMD_HELP;
7472                         }
7473                 }
7474         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
7475                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
7476                         progname);
7477                 return CMD_HELP;
7478         }
7479
7480         mnt = argv[optind];
7481         rc = get_print_quota(mnt, name, &qctl, verbose, quiet,
7482                              human_readable, show_default);
7483         return rc;
7484 }
7485 #endif /* HAVE_SYS_QUOTA_H! */
7486
7487 static int flushctx_ioctl(char *mp)
7488 {
7489         int fd, rc;
7490
7491         fd = open(mp, O_RDONLY);
7492         if (fd == -1) {
7493                 fprintf(stderr, "flushctx: error open %s: %s\n",
7494                         mp, strerror(errno));
7495                 return -1;
7496         }
7497
7498         rc = ioctl(fd, LL_IOC_FLUSHCTX);
7499         if (rc == -1)
7500                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
7501                         mp, strerror(errno));
7502
7503         close(fd);
7504         return rc;
7505 }
7506
7507 static int lfs_flushctx(int argc, char **argv)
7508 {
7509         int     kdestroy = 0, c;
7510         char    mntdir[PATH_MAX] = {'\0'};
7511         int     index = 0;
7512         int     rc = 0;
7513
7514         while ((c = getopt(argc, argv, "k")) != -1) {
7515                 switch (c) {
7516                 case 'k':
7517                         kdestroy = 1;
7518                         break;
7519                 default:
7520                         fprintf(stderr, "error: %s: option '-%c' "
7521                                         "unrecognized\n", argv[0], c);
7522                         return CMD_HELP;
7523                 }
7524         }
7525
7526         if (kdestroy) {
7527             if ((rc = system("kdestroy > /dev/null")) != 0) {
7528                 rc = WEXITSTATUS(rc);
7529                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
7530             }
7531         }
7532
7533         if (optind >= argc) {
7534                 /* flush for all mounted lustre fs. */
7535                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
7536                         /* Check if we have a mount point */
7537                         if (mntdir[0] == '\0')
7538                                 continue;
7539
7540                         if (flushctx_ioctl(mntdir))
7541                                 rc = -1;
7542
7543                         mntdir[0] = '\0'; /* avoid matching in next loop */
7544                 }
7545         } else {
7546                 /* flush fs as specified */
7547                 while (optind < argc) {
7548                         if (flushctx_ioctl(argv[optind++]))
7549                                 rc = -1;
7550                 }
7551         }
7552         return rc;
7553 }
7554
7555 static int lfs_changelog(int argc, char **argv)
7556 {
7557         void *changelog_priv;
7558         struct changelog_rec *rec;
7559         long long startrec = 0, endrec = 0;
7560         char *mdd;
7561         struct option long_opts[] = {
7562                 { .val = 'f', .name = "follow", .has_arg = no_argument },
7563                 { .name = NULL } };
7564         char short_opts[] = "f";
7565         int rc, follow = 0;
7566
7567         while ((rc = getopt_long(argc, argv, short_opts,
7568                 long_opts, NULL)) != -1) {
7569                 switch (rc) {
7570                 case 'f':
7571                         follow++;
7572                         break;
7573                 default:
7574                         fprintf(stderr,
7575                                 "%s changelog: unrecognized option '%s'\n",
7576                                 progname, argv[optind - 1]);
7577                         return CMD_HELP;
7578                 }
7579         }
7580         if (optind >= argc) {
7581                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
7582                         progname);
7583                 return CMD_HELP;
7584         }
7585
7586         mdd = argv[optind++];
7587         if (argc > optind)
7588                 startrec = strtoll(argv[optind++], NULL, 10);
7589         if (argc > optind)
7590                 endrec = strtoll(argv[optind++], NULL, 10);
7591
7592         rc = llapi_changelog_start(&changelog_priv,
7593                                    CHANGELOG_FLAG_BLOCK |
7594                                    CHANGELOG_FLAG_JOBID |
7595                                    CHANGELOG_FLAG_EXTRA_FLAGS |
7596                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
7597                                    mdd, startrec);
7598         if (rc < 0) {
7599                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
7600                         progname, strerror(errno = -rc));
7601                 return rc;
7602         }
7603
7604         rc = llapi_changelog_set_xflags(changelog_priv,
7605                                         CHANGELOG_EXTRA_FLAG_UIDGID |
7606                                         CHANGELOG_EXTRA_FLAG_NID |
7607                                         CHANGELOG_EXTRA_FLAG_OMODE |
7608                                         CHANGELOG_EXTRA_FLAG_XATTR);
7609         if (rc < 0) {
7610                 fprintf(stderr,
7611                         "%s changelog: cannot set xflags for changelog: %s\n",
7612                         progname, strerror(errno = -rc));
7613                 return rc;
7614         }
7615
7616         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
7617                 time_t secs;
7618                 struct tm ts;
7619
7620                 if (endrec && rec->cr_index > endrec) {
7621                         llapi_changelog_free(&rec);
7622                         break;
7623                 }
7624                 if (rec->cr_index < startrec) {
7625                         llapi_changelog_free(&rec);
7626                         continue;
7627                 }
7628
7629                 secs = rec->cr_time >> 30;
7630                 gmtime_r(&secs, &ts);
7631                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
7632                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
7633                        changelog_type2str(rec->cr_type),
7634                        ts.tm_hour, ts.tm_min, ts.tm_sec,
7635                        (int)(rec->cr_time & ((1 << 30) - 1)),
7636                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
7637                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
7638
7639                 if (rec->cr_flags & CLF_JOBID) {
7640                         struct changelog_ext_jobid *jid =
7641                                 changelog_rec_jobid(rec);
7642
7643                         if (jid->cr_jobid[0] != '\0')
7644                                 printf(" j=%s", jid->cr_jobid);
7645                 }
7646
7647                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
7648                         struct changelog_ext_extra_flags *ef =
7649                                 changelog_rec_extra_flags(rec);
7650
7651                         printf(" ef=0x%llx",
7652                                (unsigned long long)ef->cr_extra_flags);
7653
7654                         if (ef->cr_extra_flags & CLFE_UIDGID) {
7655                                 struct changelog_ext_uidgid *uidgid =
7656                                         changelog_rec_uidgid(rec);
7657
7658                                 printf(" u=%llu:%llu",
7659                                        (unsigned long long)uidgid->cr_uid,
7660                                        (unsigned long long)uidgid->cr_gid);
7661                         }
7662                         if (ef->cr_extra_flags & CLFE_NID) {
7663                                 struct changelog_ext_nid *nid =
7664                                         changelog_rec_nid(rec);
7665
7666                                 printf(" nid=%s",
7667                                        libcfs_nid2str(nid->cr_nid));
7668                         }
7669
7670                         if (ef->cr_extra_flags & CLFE_OPEN) {
7671                                 struct changelog_ext_openmode *omd =
7672                                         changelog_rec_openmode(rec);
7673                                 char mode[] = "---";
7674
7675                                 /* exec mode must be exclusive */
7676                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
7677                                         mode[2] = 'x';
7678                                 } else {
7679                                         if (omd->cr_openflags & MDS_FMODE_READ)
7680                                                 mode[0] = 'r';
7681                                         if (omd->cr_openflags &
7682                                             (MDS_FMODE_WRITE |
7683                                              MDS_OPEN_TRUNC |
7684                                              MDS_OPEN_APPEND))
7685                                                 mode[1] = 'w';
7686                                 }
7687
7688                                 if (strcmp(mode, "---") != 0)
7689                                         printf(" m=%s", mode);
7690
7691                         }
7692
7693                         if (ef->cr_extra_flags & CLFE_XATTR) {
7694                                 struct changelog_ext_xattr *xattr =
7695                                         changelog_rec_xattr(rec);
7696
7697                                 if (xattr->cr_xattr[0] != '\0')
7698                                         printf(" x=%s", xattr->cr_xattr);
7699                         }
7700                 }
7701
7702                 if (rec->cr_namelen)
7703                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
7704                                rec->cr_namelen, changelog_rec_name(rec));
7705
7706                 if (rec->cr_flags & CLF_RENAME) {
7707                         struct changelog_ext_rename *rnm =
7708                                 changelog_rec_rename(rec);
7709
7710                         if (!fid_is_zero(&rnm->cr_sfid))
7711                                 printf(" s="DFID" sp="DFID" %.*s",
7712                                        PFID(&rnm->cr_sfid),
7713                                        PFID(&rnm->cr_spfid),
7714                                        (int)changelog_rec_snamelen(rec),
7715                                        changelog_rec_sname(rec));
7716                 }
7717                 printf("\n");
7718
7719                 llapi_changelog_free(&rec);
7720         }
7721
7722         llapi_changelog_fini(&changelog_priv);
7723
7724         if (rc < 0)
7725                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
7726                         progname, strerror(errno = -rc));
7727
7728         return (rc == 1 ? 0 : rc);
7729 }
7730
7731 static int lfs_changelog_clear(int argc, char **argv)
7732 {
7733         long long endrec;
7734         int rc;
7735
7736         if (argc != 4)
7737                 return CMD_HELP;
7738
7739         endrec = strtoll(argv[3], NULL, 10);
7740
7741         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
7742
7743         if (rc == -EINVAL)
7744                 fprintf(stderr, "%s: record out of range: %llu\n",
7745                         argv[0], endrec);
7746         else if (rc == -ENOENT)
7747                 fprintf(stderr, "%s: no changelog user: %s\n",
7748                         argv[0], argv[2]);
7749         else if (rc)
7750                 fprintf(stderr, "%s error: %s\n", argv[0],
7751                         strerror(-rc));
7752
7753         if (rc)
7754                 errno = -rc;
7755
7756         return rc;
7757 }
7758
7759 static int lfs_fid2path(int argc, char **argv)
7760 {
7761         struct option long_opts[] = {
7762                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
7763                 { .val = 'l',   .name = "link", .has_arg = required_argument },
7764                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
7765                 { .name = NULL } };
7766         char  short_opts[] = "cl:r:";
7767         char *device, *fid, *path;
7768         long long recno = -1;
7769         int linkno = -1;
7770         int lnktmp;
7771         int printcur = 0;
7772         int rc = 0;
7773         char *endptr = NULL;
7774
7775         while ((rc = getopt_long(argc, argv, short_opts,
7776                 long_opts, NULL)) != -1) {
7777                 switch (rc) {
7778                 case 'c':
7779                         printcur++;
7780                         break;
7781                 case 'l':
7782                         linkno = strtol(optarg, &endptr, 10);
7783                         if (*endptr != '\0') {
7784                                 fprintf(stderr,
7785                                         "%s fid2path: invalid linkno '%s'\n",
7786                                         progname, optarg);
7787                                 return CMD_HELP;
7788                         }
7789                         break;
7790                 case 'r':
7791                         recno = strtoll(optarg, &endptr, 10);
7792                         if (*endptr != '\0') {
7793                                 fprintf(stderr,
7794                                         "%s fid2path: invalid recno '%s'\n",
7795                                         progname, optarg);
7796                                 return CMD_HELP;
7797                         }
7798                         break;
7799                 default:
7800                         fprintf(stderr,
7801                                 "%s fid2path: unrecognized option '%s'\n",
7802                                 progname, argv[optind - 1]);
7803                         return CMD_HELP;
7804                 }
7805         }
7806
7807         if (argc < 3) {
7808                 fprintf(stderr,
7809                         "%s fid2path: <fsname|rootpath> and <fid>... must be specified\n",
7810                         progname);
7811                 return CMD_HELP;
7812         }
7813
7814         device = argv[optind++];
7815         path = calloc(1, PATH_MAX);
7816         if (path == NULL) {
7817                 rc = -errno;
7818                 fprintf(stderr,
7819                         "%s fid2path: cannot allocate memory for path: %s\n",
7820                         progname, strerror(-rc));
7821                 return rc;
7822         }
7823
7824         rc = 0;
7825         while (optind < argc) {
7826                 fid = argv[optind++];
7827
7828                 lnktmp = (linkno >= 0) ? linkno : 0;
7829                 while (1) {
7830                         int oldtmp = lnktmp;
7831                         long long rectmp = recno;
7832                         int rc2;
7833                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
7834                                              &rectmp, &lnktmp);
7835                         if (rc2 < 0) {
7836                                 fprintf(stderr,
7837                                         "%s fid2path: cannot find '%s': %s\n",
7838                                         progname, fid, strerror(errno = -rc2));
7839                                 if (rc == 0)
7840                                         rc = rc2;
7841                                 break;
7842                         }
7843
7844                         if (printcur)
7845                                 fprintf(stdout, "%lld ", rectmp);
7846                         if (device[0] == '/') {
7847                                 fprintf(stdout, "%s", device);
7848                                 if (device[strlen(device) - 1] != '/')
7849                                         fprintf(stdout, "/");
7850                         } else if (path[0] == '\0') {
7851                                 fprintf(stdout, "/");
7852                         }
7853                         fprintf(stdout, "%s\n", path);
7854
7855                         if (linkno >= 0)
7856                                 /* specified linkno */
7857                                 break;
7858                         if (oldtmp == lnktmp)
7859                                 /* no more links */
7860                                 break;
7861                 }
7862         }
7863
7864         free(path);
7865         return rc;
7866 }
7867
7868 static int lfs_path2fid(int argc, char **argv)
7869 {
7870         struct option long_opts[] = {
7871                 { .val = 'p', .name = "parents", .has_arg = no_argument },
7872                 { .name = NULL } };
7873         char            **path;
7874         const char        short_opts[] = "p";
7875         const char       *sep = "";
7876         struct lu_fid     fid;
7877         int               rc = 0;
7878         bool              show_parents = false;
7879
7880         while ((rc = getopt_long(argc, argv, short_opts,
7881                                  long_opts, NULL)) != -1) {
7882                 switch (rc) {
7883                 case 'p':
7884                         show_parents = true;
7885                         break;
7886                 default:
7887                         fprintf(stderr,
7888                                 "%s path2fid: unrecognized option '%s'\n",
7889                                 progname, argv[optind - 1]);
7890                         return CMD_HELP;
7891                 }
7892         }
7893
7894         if (optind > argc - 1) {
7895                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
7896                         progname);
7897                 return CMD_HELP;
7898         }
7899         else if (optind < argc - 1)
7900                 sep = ": ";
7901
7902         rc = 0;
7903         for (path = argv + optind; *path != NULL; path++) {
7904                 int err = 0;
7905                 if (!show_parents) {
7906                         err = llapi_path2fid(*path, &fid);
7907                         if (!err)
7908                                 printf("%s%s"DFID"\n",
7909                                        *sep != '\0' ? *path : "", sep,
7910                                        PFID(&fid));
7911                 } else {
7912                         char            name[NAME_MAX + 1];
7913                         unsigned int    linkno = 0;
7914
7915                         while ((err = llapi_path2parent(*path, linkno, &fid,
7916                                                 name, sizeof(name))) == 0) {
7917                                 if (*sep != '\0' && linkno == 0)
7918                                         printf("%s%s", *path, sep);
7919
7920                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
7921                                        PFID(&fid), name);
7922                                 linkno++;
7923                         }
7924
7925                         /* err == -ENODATA is end-of-loop */
7926                         if (linkno > 0 && err == -ENODATA) {
7927                                 printf("\n");
7928                                 err = 0;
7929                         }
7930                 }
7931
7932                 if (err) {
7933                         fprintf(stderr,
7934                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
7935                                 progname, show_parents ? "parent " : "", *path,
7936                                 strerror(-err));
7937                         if (rc == 0) {
7938                                 rc = err;
7939                                 errno = -err;
7940                         }
7941                 }
7942         }
7943
7944         return rc;
7945 }
7946
7947 #define MAX_ERRNO       4095
7948 #define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
7949
7950 static int lfs_rmfid_and_show_errors(const char *device, struct fid_array *fa)
7951 {
7952         int rc, rc2 = 0, k;
7953
7954         rc = llapi_rmfid(device, fa);
7955         if (rc) {
7956                 fprintf(stderr, "rmfid(): rc = %d\n", rc);
7957                 return rc;
7958         }
7959
7960         for (k = 0; k < fa->fa_nr; k++) {
7961                 rc = (__s32)fa->fa_fids[k].f_ver;
7962                 if (!IS_ERR_VALUE(rc))
7963                         continue;
7964                 if (!rc2 && rc)
7965                         rc2 = rc;
7966                 if (!rc)
7967                         continue;
7968                 fa->fa_fids[k].f_ver = 0;
7969                 fprintf(stderr, "rmfid("DFID"): rc = %d\n",
7970                         PFID(&fa->fa_fids[k]), rc);
7971         }
7972
7973         return rc2;
7974 }
7975
7976 static int lfs_rmfid(int argc, char **argv)
7977 {
7978         char *fidstr, *device;
7979         int rc = 0, rc2, nr;
7980         struct fid_array *fa;
7981
7982         if (optind > argc - 1) {
7983                 fprintf(stderr, "%s rmfid: missing dirname\n", progname);
7984                 return CMD_HELP;
7985         }
7986
7987         device = argv[optind++];
7988
7989         nr = argc - optind;
7990         fa = malloc(offsetof(struct fid_array, fa_fids[nr + 1]));
7991         if (fa == NULL)
7992                 return -ENOMEM;
7993
7994         fa->fa_nr = 0;
7995         rc = 0;
7996         while (optind < argc) {
7997                 int found;
7998
7999                 fidstr = argv[optind++];
8000                 while (*fidstr == '[')
8001                         fidstr++;
8002                 found = sscanf(fidstr, SFID, RFID(&fa->fa_fids[fa->fa_nr]));
8003                 if (found != 3) {
8004                         fprintf(stderr, "unrecognized FID: %s\n",
8005                                 argv[optind - 1]);
8006                         exit(1);
8007                 }
8008                 fa->fa_nr++;
8009                 if (fa->fa_nr == OBD_MAX_FIDS_IN_ARRAY) {
8010                         /* start another batch */
8011                         rc2 = lfs_rmfid_and_show_errors(device, fa);
8012                         if (rc2 && !rc)
8013                                 rc = rc2;
8014                         fa->fa_nr = 0;
8015                 }
8016         }
8017         if (fa->fa_nr) {
8018                 rc2 = lfs_rmfid_and_show_errors(device, fa);
8019                 if (rc2 && !rc)
8020                         rc = rc2;
8021         }
8022
8023         return rc;
8024 }
8025
8026 static int lfs_data_version(int argc, char **argv)
8027 {
8028         char *path;
8029         __u64 data_version;
8030         int fd;
8031         int rc;
8032         int c;
8033         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
8034
8035         if (argc < 2) {
8036                 fprintf(stderr, "%s data_version: FILE must be specified\n",
8037                         progname);
8038                 return CMD_HELP;
8039         }
8040
8041         while ((c = getopt(argc, argv, "nrw")) != -1) {
8042                 switch (c) {
8043                 case 'n':
8044                         data_version_flags = 0;
8045                         break;
8046                 case 'r':
8047                         data_version_flags |= LL_DV_RD_FLUSH;
8048                         break;
8049                 case 'w':
8050                         data_version_flags |= LL_DV_WR_FLUSH;
8051                         break;
8052                 default:
8053                         fprintf(stderr,
8054                                 "%s data_version: unrecognized option '%s'\n",
8055                                 progname, argv[optind - 1]);
8056                         return CMD_HELP;
8057                 }
8058         }
8059         if (optind == argc) {
8060                 fprintf(stderr, "%s data_version: FILE must be specified\n",
8061                         progname);
8062                 return CMD_HELP;
8063         }
8064
8065         path = argv[optind];
8066         fd = open(path, O_RDONLY);
8067         if (fd < 0) {
8068                 rc = -errno;
8069                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
8070                         progname, path, strerror(-rc));
8071                 return rc;
8072         }
8073
8074         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
8075         if (rc < 0)
8076                 fprintf(stderr,
8077                         "%s data_version: cannot get version for '%s': %s\n",
8078                         progname, path, strerror(-rc));
8079         else
8080                 printf("%ju" "\n", (uintmax_t)data_version);
8081
8082         close(fd);
8083         return rc;
8084 }
8085
8086 static int lfs_hsm_state(int argc, char **argv)
8087 {
8088         int rc;
8089         int i = 1;
8090         char *path;
8091         struct hsm_user_state hus;
8092
8093         if (argc < 2)
8094                 return CMD_HELP;
8095
8096         do {
8097                 path = argv[i];
8098
8099                 rc = llapi_hsm_state_get(path, &hus);
8100                 if (rc) {
8101                         fprintf(stderr, "can't get hsm state for %s: %s\n",
8102                                 path, strerror(errno = -rc));
8103                         return rc;
8104                 }
8105
8106                 /* Display path name and status flags */
8107                 printf("%s: (0x%08x)", path, hus.hus_states);
8108
8109                 if (hus.hus_states & HS_RELEASED)
8110                         printf(" released");
8111                 if (hus.hus_states & HS_EXISTS)
8112                         printf(" exists");
8113                 if (hus.hus_states & HS_DIRTY)
8114                         printf(" dirty");
8115                 if (hus.hus_states & HS_ARCHIVED)
8116                         printf(" archived");
8117                 /* Display user-settable flags */
8118                 if (hus.hus_states & HS_NORELEASE)
8119                         printf(" never_release");
8120                 if (hus.hus_states & HS_NOARCHIVE)
8121                         printf(" never_archive");
8122                 if (hus.hus_states & HS_LOST)
8123                         printf(" lost_from_hsm");
8124
8125                 if (hus.hus_archive_id != 0)
8126                         printf(", archive_id:%d", hus.hus_archive_id);
8127                 printf("\n");
8128
8129         } while (++i < argc);
8130
8131         return 0;
8132 }
8133
8134 #define LFS_HSM_SET   0
8135 #define LFS_HSM_CLEAR 1
8136
8137 /**
8138  * Generic function to set or clear HSM flags.
8139  * Used by hsm_set and hsm_clear.
8140  *
8141  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
8142  */
8143 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
8144 {
8145         struct option long_opts[] = {
8146         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
8147         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
8148         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
8149         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
8150         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
8151         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
8152         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
8153         { .name = NULL } };
8154         char short_opts[] = "lraAdei:";
8155         __u64 mask = 0;
8156         int c, rc;
8157         char *path;
8158         __u32 archive_id = 0;
8159         char *end = NULL;
8160
8161         if (argc < 3)
8162                 return CMD_HELP;
8163
8164         while ((c = getopt_long(argc, argv, short_opts,
8165                                 long_opts, NULL)) != -1) {
8166                 switch (c) {
8167                 case 'l':
8168                         mask |= HS_LOST;
8169                         break;
8170                 case 'a':
8171                         mask |= HS_NOARCHIVE;
8172                         break;
8173                 case 'A':
8174                         mask |= HS_ARCHIVED;
8175                         break;
8176                 case 'r':
8177                         mask |= HS_NORELEASE;
8178                         break;
8179                 case 'd':
8180                         mask |= HS_DIRTY;
8181                         break;
8182                 case 'e':
8183                         mask |= HS_EXISTS;
8184                         break;
8185                 case 'i':
8186                         archive_id = strtol(optarg, &end, 10);
8187                         if (*end != '\0') {
8188                                 fprintf(stderr, "invalid archive_id: '%s'\n",
8189                                         end);
8190                                 return CMD_HELP;
8191                         }
8192                         break;
8193                 case '?':
8194                         return CMD_HELP;
8195                 default:
8196                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
8197                                 argv[0], argv[optind - 1]);
8198                         return CMD_HELP;
8199                 }
8200         }
8201
8202         /* User should have specified a flag */
8203         if (mask == 0)
8204                 return CMD_HELP;
8205
8206         while (optind < argc) {
8207
8208                 path = argv[optind];
8209
8210                 /* If mode == 0, this means we apply the mask. */
8211                 if (mode == LFS_HSM_SET)
8212                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
8213                 else
8214                         rc = llapi_hsm_state_set(path, 0, mask, 0);
8215
8216                 if (rc != 0) {
8217                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
8218                                 path, strerror(errno = -rc));
8219                         return rc;
8220                 }
8221                 optind++;
8222         }
8223
8224         return 0;
8225 }
8226
8227 static int lfs_hsm_action(int argc, char **argv)
8228 {
8229         int                              rc;
8230         int                              i = 1;
8231         char                            *path;
8232         struct hsm_current_action        hca;
8233         struct hsm_extent                he;
8234         enum hsm_user_action             hua;
8235         enum hsm_progress_states         hps;
8236
8237         if (argc < 2)
8238                 return CMD_HELP;
8239
8240         do {
8241                 path = argv[i];
8242
8243                 rc = llapi_hsm_current_action(path, &hca);
8244                 if (rc) {
8245                         fprintf(stderr, "can't get hsm action for %s: %s\n",
8246                                 path, strerror(errno = -rc));
8247                         return rc;
8248                 }
8249                 he = hca.hca_location;
8250                 hua = hca.hca_action;
8251                 hps = hca.hca_state;
8252
8253                 printf("%s: %s", path, hsm_user_action2name(hua));
8254
8255                 /* Skip file without action */
8256                 if (hca.hca_action == HUA_NONE) {
8257                         printf("\n");
8258                         continue;
8259                 }
8260
8261                 printf(" %s ", hsm_progress_state2name(hps));
8262
8263                 if ((hps == HPS_RUNNING) &&
8264                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
8265                         printf("(%llu bytes moved)\n",
8266                                (unsigned long long)he.length);
8267                 else if ((he.offset + he.length) == LUSTRE_EOF)
8268                         printf("(from %llu to EOF)\n",
8269                                (unsigned long long)he.offset);
8270                 else
8271                         printf("(from %llu to %llu)\n",
8272                                (unsigned long long)he.offset,
8273                                (unsigned long long)(he.offset + he.length));
8274
8275         } while (++i < argc);
8276
8277         return 0;
8278 }
8279
8280 static int lfs_hsm_set(int argc, char **argv)
8281 {
8282         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
8283 }
8284
8285 static int lfs_hsm_clear(int argc, char **argv)
8286 {
8287         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
8288 }
8289
8290 /**
8291  * Check file state and return its fid, to be used by lfs_hsm_request().
8292  *
8293  * \param[in]     file      Path to file to check
8294  * \param[in,out] fid       Pointer to allocated lu_fid struct.
8295  * \param[in,out] last_dev  Pointer to last device id used.
8296  *
8297  * \return 0 on success.
8298  */
8299 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
8300                                 dev_t *last_dev)
8301 {
8302         struct stat     st;
8303         int             rc;
8304
8305         rc = lstat(file, &st);
8306         if (rc) {
8307                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
8308                 return -errno;
8309         }
8310         /* Checking for regular file as archiving as posix copytool
8311          * rejects archiving files other than regular files
8312          */
8313         if (!S_ISREG(st.st_mode)) {
8314                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
8315                 return CMD_HELP;
8316         }
8317         /* A request should be ... */
8318         if (*last_dev != st.st_dev && *last_dev != 0) {
8319                 fprintf(stderr, "All files should be "
8320                         "on the same filesystem: %s\n", file);
8321                 return -EINVAL;
8322         }
8323         *last_dev = st.st_dev;
8324
8325         rc = llapi_path2fid(file, fid);
8326         if (rc) {
8327                 fprintf(stderr, "Cannot read FID of %s: %s\n",
8328                         file, strerror(-rc));
8329                 return rc;
8330         }
8331         return 0;
8332 }
8333
8334 /* Fill an HSM HUR item with a given file name.
8335  *
8336  * If mntpath is set, then the filename is actually a FID, and no
8337  * lookup on the filesystem will be performed.
8338  *
8339  * \param[in]  hur         the user request to fill
8340  * \param[in]  idx         index of the item inside the HUR to fill
8341  * \param[in]  mntpath     mountpoint of Lustre
8342  * \param[in]  fname       filename (if mtnpath is NULL)
8343  *                         or FID (if mntpath is set)
8344  * \param[in]  last_dev    pointer to last device id used
8345  *
8346  * \retval 0 on success
8347  * \retval CMD_HELP or a negative errno on error
8348  */
8349 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
8350                          const char *mntpath, const char *fname,
8351                          dev_t *last_dev)
8352 {
8353         struct hsm_user_item *hui = &hur->hur_user_item[idx];
8354         int rc;
8355
8356         hui->hui_extent.length = -1;
8357
8358         if (mntpath != NULL) {
8359                 rc = llapi_fid_parse(fname, &hui->hui_fid, NULL);
8360                 if (rc)
8361                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
8362                                 fname);
8363         } else {
8364                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
8365         }
8366
8367         if (rc == 0)
8368                 hur->hur_request.hr_itemcount++;
8369
8370         return rc;
8371 }
8372
8373 static int lfs_hsm_request(int argc, char **argv, int action)
8374 {
8375         struct option long_opts[] = {
8376         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
8377         { .val = 'D',   .name = "data",         .has_arg = required_argument },
8378         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
8379         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
8380         { .name = NULL } };
8381         dev_t                    last_dev = 0;
8382         char                     short_opts[] = "l:D:a:m:";
8383         struct hsm_user_request *hur, *oldhur;
8384         int                      c, i;
8385         size_t                   len;
8386         int                      nbfile;
8387         char                    *line = NULL;
8388         char                    *filelist = NULL;
8389         char                     fullpath[PATH_MAX];
8390         char                    *opaque = NULL;
8391         int                      opaque_len = 0;
8392         int                      archive_id = 0;
8393         FILE                    *fp;
8394         int                      nbfile_alloc = 0;
8395         char                    *some_file = NULL;
8396         char                    *mntpath = NULL;
8397         int                      rc;
8398
8399         if (argc < 2)
8400                 return CMD_HELP;
8401
8402         while ((c = getopt_long(argc, argv, short_opts,
8403                                 long_opts, NULL)) != -1) {
8404                 switch (c) {
8405                 case 'l':
8406                         filelist = optarg;
8407                         break;
8408                 case 'D':
8409                         opaque = optarg;
8410                         break;
8411                 case 'a':
8412                         if (action != HUA_ARCHIVE &&
8413                             action != HUA_REMOVE) {
8414                                 fprintf(stderr,
8415                                         "error: -a is supported only "
8416                                         "when archiving or removing\n");
8417                                 return CMD_HELP;
8418                         }
8419                         archive_id = atoi(optarg);
8420                         break;
8421                 case 'm':
8422                         if (some_file == NULL) {
8423                                 mntpath = optarg;
8424                                 some_file = strdup(optarg);
8425                         }
8426                         break;
8427                 case '?':
8428                         return CMD_HELP;
8429                 default:
8430                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
8431                                 argv[0], argv[optind - 1]);
8432                         return CMD_HELP;
8433                 }
8434         }
8435
8436         /* All remaining args are files, so we have at least nbfile */
8437         nbfile = argc - optind;
8438
8439         if ((nbfile == 0) && (filelist == NULL))
8440                 return CMD_HELP;
8441
8442         if (opaque != NULL)
8443                 opaque_len = strlen(opaque);
8444
8445         /* Alloc the request structure with enough place to store all files
8446          * from command line. */
8447         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
8448         if (hur == NULL) {
8449                 fprintf(stderr, "Cannot create the request: %s\n",
8450                         strerror(errno));
8451                 return errno;
8452         }
8453         nbfile_alloc = nbfile;
8454
8455         hur->hur_request.hr_action = action;
8456         hur->hur_request.hr_archive_id = archive_id;
8457         hur->hur_request.hr_flags = 0;
8458
8459         /* All remaining args are files, add them */
8460         if (nbfile != 0 && some_file == NULL)
8461                 some_file = strdup(argv[optind]);
8462
8463         for (i = 0; i < nbfile; i++) {
8464                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
8465                                    &last_dev);
8466                 if (rc)
8467                         goto out_free;
8468         }
8469
8470         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
8471
8472         /* If a filelist was specified, read the filelist from it. */
8473         if (filelist != NULL) {
8474                 fp = fopen(filelist, "r");
8475                 if (fp == NULL) {
8476                         fprintf(stderr, "Cannot read the file list %s: %s\n",
8477                                 filelist, strerror(errno));
8478                         rc = -errno;
8479                         goto out_free;
8480                 }
8481
8482                 while ((rc = getline(&line, &len, fp)) != -1) {
8483                         /* If allocated buffer was too small, get something
8484                          * larger */
8485                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
8486                                 ssize_t size;
8487
8488                                 nbfile_alloc = nbfile_alloc * 2 + 1;
8489                                 oldhur = hur;
8490                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
8491                                                                    opaque_len);
8492                                 if (hur == NULL) {
8493                                         fprintf(stderr, "hsm: cannot allocate "
8494                                                 "the request: %s\n",
8495                                                 strerror(errno));
8496                                         hur = oldhur;
8497                                         rc = -errno;
8498                                         fclose(fp);
8499                                         goto out_free;
8500                                 }
8501                                 size = hur_len(oldhur);
8502                                 if (size < 0) {
8503                                         fprintf(stderr, "hsm: cannot allocate "
8504                                                 "%u files + %u bytes data\n",
8505                                             oldhur->hur_request.hr_itemcount,
8506                                             oldhur->hur_request.hr_data_len);
8507                                         free(hur);
8508                                         hur = oldhur;
8509                                         rc = -E2BIG;
8510                                         fclose(fp);
8511                                         goto out_free;
8512                                 }
8513                                 memcpy(hur, oldhur, size);
8514                                 free(oldhur);
8515                         }
8516
8517                         /* Chop CR */
8518                         if (line[strlen(line) - 1] == '\n')
8519                                 line[strlen(line) - 1] = '\0';
8520
8521                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
8522                                            mntpath, line, &last_dev);
8523                         if (rc) {
8524                                 fclose(fp);
8525                                 goto out_free;
8526                         }
8527
8528                         if (some_file == NULL) {
8529                                 some_file = line;
8530                                 line = NULL;
8531                         }
8532                 }
8533
8534                 rc = fclose(fp);
8535                 free(line);
8536         }
8537
8538         /* If a --data was used, add it to the request */
8539         hur->hur_request.hr_data_len = opaque_len;
8540         if (opaque != NULL)
8541                 memcpy(hur_data(hur), opaque, opaque_len);
8542
8543         /* Send the HSM request */
8544         if (realpath(some_file, fullpath) == NULL) {
8545                 fprintf(stderr, "Could not find path '%s': %s\n",
8546                         some_file, strerror(errno));
8547         }
8548         rc = llapi_hsm_request(fullpath, hur);
8549         if (rc) {
8550                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
8551                         some_file, strerror(-rc));
8552                 goto out_free;
8553         }
8554
8555 out_free:
8556         free(some_file);
8557         free(hur);
8558         return rc;
8559 }
8560
8561 static int lfs_hsm_archive(int argc, char **argv)
8562 {
8563         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
8564 }
8565
8566 static int lfs_hsm_restore(int argc, char **argv)
8567 {
8568         return lfs_hsm_request(argc, argv, HUA_RESTORE);
8569 }
8570
8571 static int lfs_hsm_release(int argc, char **argv)
8572 {
8573         return lfs_hsm_request(argc, argv, HUA_RELEASE);
8574 }
8575
8576 static int lfs_hsm_remove(int argc, char **argv)
8577 {
8578         return lfs_hsm_request(argc, argv, HUA_REMOVE);
8579 }
8580
8581 static int lfs_hsm_cancel(int argc, char **argv)
8582 {
8583         return lfs_hsm_request(argc, argv, HUA_CANCEL);
8584 }
8585
8586 static int lfs_swap_layouts(int argc, char **argv)
8587 {
8588         if (argc != 3)
8589                 return CMD_HELP;
8590
8591         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
8592                                   SWAP_LAYOUTS_KEEP_MTIME |
8593                                   SWAP_LAYOUTS_KEEP_ATIME);
8594 }
8595
8596 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
8597
8598 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
8599
8600 int lfs_get_mode(const char *string)
8601 {
8602         enum lock_mode_user mode;
8603
8604         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
8605                 if (lock_mode_names[mode] == NULL)
8606                         continue;
8607                 if (strcmp(string, lock_mode_names[mode]) == 0)
8608                         return mode;
8609         }
8610
8611         return -EINVAL;
8612 }
8613
8614 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
8615 {
8616         enum lu_ladvise_type advice;
8617
8618         for (advice = 0;
8619              advice < ARRAY_SIZE(ladvise_names); advice++) {
8620                 if (ladvise_names[advice] == NULL)
8621                         continue;
8622                 if (strcmp(string, ladvise_names[advice]) == 0)
8623                         return advice;
8624         }
8625
8626         return LU_LADVISE_INVALID;
8627 }
8628
8629 static int lfs_ladvise(int argc, char **argv)
8630 {
8631         struct option long_opts[] = {
8632         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
8633         { .val = 'b',   .name = "background",   .has_arg = no_argument },
8634         { .val = 'e',   .name = "end",          .has_arg = required_argument },
8635         { .val = 'l',   .name = "length",       .has_arg = required_argument },
8636         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
8637         { .val = 's',   .name = "start",        .has_arg = required_argument },
8638         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
8639         { .name = NULL } };
8640         char                     short_opts[] = "a:be:l:m:s:u";
8641         int                      c;
8642         int                      rc = 0;
8643         const char              *path;
8644         int                      fd;
8645         struct llapi_lu_ladvise  advice;
8646         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
8647         unsigned long long       start = 0;
8648         unsigned long long       end = LUSTRE_EOF;
8649         unsigned long long       length = 0;
8650         unsigned long long       size_units;
8651         unsigned long long       flags = 0;
8652         int                      mode = 0;
8653
8654         optind = 0;
8655         while ((c = getopt_long(argc, argv, short_opts,
8656                                 long_opts, NULL)) != -1) {
8657                 switch (c) {
8658                 case 'a':
8659                         advice_type = lfs_get_ladvice(optarg);
8660                         if (advice_type == LU_LADVISE_INVALID) {
8661                                 fprintf(stderr, "%s: invalid advice type "
8662                                         "'%s'\n", argv[0], optarg);
8663                                 fprintf(stderr, "Valid types:");
8664
8665                                 for (advice_type = 0;
8666                                      advice_type < ARRAY_SIZE(ladvise_names);
8667                                      advice_type++) {
8668                                         if (ladvise_names[advice_type] == NULL)
8669                                                 continue;
8670                                         fprintf(stderr, " %s",
8671                                                 ladvise_names[advice_type]);
8672                                 }
8673                                 fprintf(stderr, "\n");
8674
8675                                 return CMD_HELP;
8676                         }
8677                         break;
8678                 case 'b':
8679                         flags |= LF_ASYNC;
8680                         break;
8681                 case 'u':
8682                         flags |= LF_UNSET;
8683                         break;
8684                 case 'e':
8685                         size_units = 1;
8686                         rc = llapi_parse_size(optarg, &end,
8687                                               &size_units, 0);
8688                         if (rc) {
8689                                 fprintf(stderr, "%s: bad end offset '%s'\n",
8690                                         argv[0], optarg);
8691                                 return CMD_HELP;
8692                         }
8693                         break;
8694                 case 's':
8695                         size_units = 1;
8696                         rc = llapi_parse_size(optarg, &start,
8697                                               &size_units, 0);
8698                         if (rc) {
8699                                 fprintf(stderr, "%s: bad start offset "
8700                                         "'%s'\n", argv[0], optarg);
8701                                 return CMD_HELP;
8702                         }
8703                         break;
8704                 case 'l':
8705                         size_units = 1;
8706                         rc = llapi_parse_size(optarg, &length,
8707                                               &size_units, 0);
8708                         if (rc) {
8709                                 fprintf(stderr, "%s: bad length '%s'\n",
8710                                         argv[0], optarg);
8711                                 return CMD_HELP;
8712                         }
8713                         break;
8714                 case 'm':
8715                         mode = lfs_get_mode(optarg);
8716                         if (mode < 0) {
8717                                 fprintf(stderr, "%s: bad mode '%s', valid "
8718                                                  "modes are READ or WRITE\n",
8719                                         argv[0], optarg);
8720                                 return CMD_HELP;
8721                         }
8722                         break;
8723                 case '?':
8724                         return CMD_HELP;
8725                 default:
8726                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8727                                 argv[0], argv[optind - 1]);
8728                         return CMD_HELP;
8729                 }
8730         }
8731
8732         if (advice_type == LU_LADVISE_INVALID) {
8733                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
8734                 fprintf(stderr, "Valid types:");
8735                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
8736                      advice_type++) {
8737                         if (ladvise_names[advice_type] == NULL)
8738                                 continue;
8739                         fprintf(stderr, " %s", ladvise_names[advice_type]);
8740                 }
8741                 fprintf(stderr, "\n");
8742                 return CMD_HELP;
8743         }
8744
8745         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
8746                 fprintf(stderr, "%s: Lock no expand advice is a per file "
8747                                  "descriptor advice, so when called from lfs, "
8748                                  "it does nothing.\n", argv[0]);
8749                 return CMD_HELP;
8750         }
8751
8752         if (argc <= optind) {
8753                 fprintf(stderr, "%s: please give one or more file names\n",
8754                         argv[0]);
8755                 return CMD_HELP;
8756         }
8757
8758         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
8759                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
8760                         argv[0]);
8761                 return CMD_HELP;
8762         }
8763
8764         if (end == LUSTRE_EOF && length != 0)
8765                 end = start + length;
8766
8767         if (end <= start) {
8768                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
8769                         argv[0], start, end);
8770                 return CMD_HELP;
8771         }
8772
8773         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
8774                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
8775                         argv[0]);
8776                 return CMD_HELP;
8777         }
8778
8779         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
8780                 fprintf(stderr, "%s: mode is required with lockahead\n",
8781                         argv[0]);
8782                 return CMD_HELP;
8783         }
8784
8785         while (optind < argc) {
8786                 int rc2;
8787
8788                 path = argv[optind++];
8789
8790                 fd = open(path, O_RDONLY);
8791                 if (fd < 0) {
8792                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8793                                 argv[0], path, strerror(errno));
8794                         rc2 = -errno;
8795                         goto next;
8796                 }
8797
8798                 advice.lla_start = start;
8799                 advice.lla_end = end;
8800                 advice.lla_advice = advice_type;
8801                 advice.lla_value1 = 0;
8802                 advice.lla_value2 = 0;
8803                 advice.lla_value3 = 0;
8804                 advice.lla_value4 = 0;
8805                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
8806                         advice.lla_lockahead_mode = mode;
8807                         advice.lla_peradvice_flags = flags;
8808                 }
8809
8810                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
8811                 close(fd);
8812                 if (rc2 < 0) {
8813                         fprintf(stderr, "%s: cannot give advice '%s' to file "
8814                                 "'%s': %s\n", argv[0],
8815                                 ladvise_names[advice_type],
8816                                 path, strerror(errno));
8817
8818                         goto next;
8819                 }
8820
8821 next:
8822                 if (rc == 0 && rc2 < 0)
8823                         rc = rc2;
8824         }
8825         return rc;
8826 }
8827
8828 static const char *const heat_names[] = LU_HEAT_NAMES;
8829
8830 static int lfs_heat_get(int argc, char **argv)
8831 {
8832         struct lu_heat *heat;
8833         int rc = 0, rc2;
8834         char *path;
8835         int fd;
8836         int i;
8837
8838         if (argc <= 1)
8839                 return CMD_HELP;
8840
8841         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
8842         if (!heat) {
8843                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
8844                 return -ENOMEM;
8845         }
8846
8847         optind = 1;
8848         while (optind < argc) {
8849                 path = argv[optind++];
8850
8851                 fd = open(path, O_RDONLY);
8852                 if (fd < 0) {
8853                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8854                                 argv[0], path, strerror(errno));
8855                         rc2 = -errno;
8856                         goto next;
8857                 }
8858
8859                 heat->lh_count = OBD_HEAT_COUNT;
8860                 rc2 = llapi_heat_get(fd, heat);
8861                 close(fd);
8862                 if (rc2 < 0) {
8863                         fprintf(stderr, "%s: cannot get heat of file '%s'"
8864                                 ": %s\n", argv[0], path, strerror(errno));
8865                         goto next;
8866                 }
8867
8868                 printf("flags: %x\n", heat->lh_flags);
8869                 for (i = 0; i < heat->lh_count; i++)
8870                         printf("%s: %llu\n", heat_names[i],
8871                                (unsigned long long)heat->lh_heat[i]);
8872 next:
8873                 if (rc == 0 && rc2 < 0)
8874                         rc = rc2;
8875         }
8876
8877         free(heat);
8878         return rc;
8879 }
8880
8881 static int lfs_heat_set(int argc, char **argv)
8882 {
8883         struct option long_opts[] = {
8884         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
8885         { .val = 'o',   .name = "off",          .has_arg = no_argument },
8886         { .val = 'O',   .name = "on",           .has_arg = no_argument },
8887         { .name = NULL } };
8888         enum lu_heat_flag flags = 0;
8889         int rc = 0, rc2;
8890         char *path;
8891         int fd;
8892         int c;
8893
8894         if (argc <= 1)
8895                 return CMD_HELP;
8896
8897         optind = 0;
8898         while ((c = getopt_long(argc, argv, "coO", long_opts, NULL)) != -1) {
8899                 switch (c) {
8900                 case 'c':
8901                         flags |= LU_HEAT_FLAG_CLEAR;
8902                         break;
8903                 case 'o':
8904                         flags |= LU_HEAT_FLAG_CLEAR;
8905                         flags |= LU_HEAT_FLAG_OFF;
8906                         break;
8907                 case 'O':
8908                         flags &= ~LU_HEAT_FLAG_OFF;
8909                         break;
8910                 case '?':
8911                         return CMD_HELP;
8912                 default:
8913                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8914                                 argv[0], argv[optind - 1]);
8915                         return CMD_HELP;
8916                 }
8917         }
8918
8919         if (argc <= optind) {
8920                 fprintf(stderr, "%s: please give one or more file names\n",
8921                         argv[0]);
8922                 return CMD_HELP;
8923         }
8924
8925         while (optind < argc) {
8926                 path = argv[optind++];
8927
8928                 fd = open(path, O_RDONLY);
8929                 if (fd < 0) {
8930                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8931                                 argv[0], path, strerror(errno));
8932                         rc2 = -errno;
8933                         goto next;
8934                 }
8935
8936                 rc2 = llapi_heat_set(fd, flags);
8937                 close(fd);
8938                 if (rc2 < 0) {
8939                         fprintf(stderr, "%s: cannot setflags heat of file '%s'"
8940                                 ": %s\n", argv[0], path, strerror(errno));
8941                         goto next;
8942                 }
8943 next:
8944                 if (rc == 0 && rc2 < 0)
8945                         rc = rc2;
8946         }
8947         return rc;
8948 }
8949
8950 /** The input string contains a comma delimited list of component ids and
8951  * ranges, for example "1,2-4,7".
8952  */
8953 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
8954 {
8955         bool end_of_loop = false;
8956         char *ptr = NULL;
8957         int nr = 0;
8958         int rc;
8959
8960         if (arg == NULL)
8961                 return -EINVAL;
8962
8963         while (!end_of_loop) {
8964                 int start_index;
8965                 int end_index;
8966                 int i;
8967                 char *endptr = NULL;
8968
8969                 rc = -EINVAL;
8970                 ptr = strchrnul(arg, ',');
8971                 end_of_loop = *ptr == '\0';
8972                 *ptr = '\0';
8973
8974                 start_index = strtol(arg, &endptr, 0);
8975                 if (endptr == arg) /* no data at all */
8976                         break;
8977                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
8978                         break;
8979                 if (start_index < 0)
8980                         break;
8981
8982                 end_index = start_index;
8983                 if (*endptr == '-') {
8984                         end_index = strtol(endptr + 1, &endptr, 0);
8985                         if (*endptr != '\0')
8986                                 break;
8987                         if (end_index < start_index)
8988                                 break;
8989                 }
8990
8991                 for (i = start_index; i <= end_index && size > 0; i++) {
8992                         int j;
8993
8994                         /* remove duplicate */
8995                         for (j = 0; j < nr; j++) {
8996                                 if (ids[j] == i)
8997                                         break;
8998                         }
8999                         if (j == nr) { /* no duplicate */
9000                                 ids[nr++] = i;
9001                                 --size;
9002                         }
9003                 }
9004
9005                 if (size == 0 && i < end_index)
9006                         break;
9007
9008                 *ptr = ',';
9009                 arg = ++ptr;
9010                 rc = 0;
9011         }
9012         if (!end_of_loop && ptr != NULL)
9013                 *ptr = ',';
9014
9015         return rc < 0 ? rc : nr;
9016 }
9017
9018 /**
9019  * struct verify_mirror_id - Mirror id to be verified.
9020  * @mirror_id:   A specified mirror id.
9021  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
9022  */
9023 struct verify_mirror_id {
9024         __u16 mirror_id;
9025         bool is_valid_id;
9026 };
9027
9028 /**
9029  * compare_mirror_ids() - Compare mirror ids.
9030  * @layout: Mirror component list.
9031  * @cbdata: Callback data in verify_mirror_id structure.
9032  *
9033  * This is a callback function called by llapi_layout_comp_iterate()
9034  * to compare the specified mirror id with the one in the current
9035  * component of @layout. If they are the same, then the specified
9036  * mirror id is valid.
9037  *
9038  * Return: a negative error code on failure or
9039  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
9040  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
9041  */
9042 static inline
9043 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
9044 {
9045         struct verify_mirror_id *mirror_id_cbdata =
9046                                  (struct verify_mirror_id *)cbdata;
9047         uint32_t mirror_id;
9048         int rc = 0;
9049
9050         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
9051         if (rc < 0) {
9052                 rc = -errno;
9053                 fprintf(stderr,
9054                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
9055                         progname, strerror(errno));
9056                 return rc;
9057         }
9058
9059         if (mirror_id_cbdata->mirror_id == mirror_id) {
9060                 mirror_id_cbdata->is_valid_id = true;
9061                 return LLAPI_LAYOUT_ITER_STOP;
9062         }
9063
9064         return LLAPI_LAYOUT_ITER_CONT;
9065 }
9066
9067 /**
9068  * verify_mirror_ids() - Verify specified mirror ids.
9069  * @fname:      Mirrored file name.
9070  * @mirror_ids: Specified mirror ids to be verified.
9071  * @ids_nr:     Number of specified mirror ids.
9072  *
9073  * This function verifies that specified @mirror_ids are valid
9074  * in the mirrored file @fname.
9075  *
9076  * Return: 0 on success or a negative error code on failure.
9077  */
9078 static inline
9079 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
9080 {
9081         struct llapi_layout *layout = NULL;
9082         struct verify_mirror_id mirror_id_cbdata = { 0 };
9083         struct stat stbuf;
9084         uint32_t flr_state;
9085         int i;
9086         int fd;
9087         int rc = 0;
9088         int rc2 = 0;
9089
9090         if (ids_nr <= 0)
9091                 return -EINVAL;
9092
9093         if (stat(fname, &stbuf) < 0) {
9094                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9095                         progname, fname, strerror(errno));
9096                 rc = -errno;
9097                 goto error;
9098         }
9099
9100         if (!S_ISREG(stbuf.st_mode)) {
9101                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9102                         progname, fname);
9103                 rc = -EINVAL;
9104                 goto error;
9105         }
9106
9107         fd = open(fname, O_DIRECT | O_RDONLY);
9108         if (fd < 0) {
9109                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9110                         progname, fname, strerror(errno));
9111                 rc = -errno;
9112                 goto error;
9113         }
9114
9115         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
9116         if (rc < 0) {
9117                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
9118                         progname, fname, strerror(errno));
9119                 goto close_fd;
9120         }
9121
9122         layout = llapi_layout_get_by_fd(fd, 0);
9123         if (layout == NULL) {
9124                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9125                         progname, fname, strerror(errno));
9126                 rc = -errno;
9127                 llapi_lease_release(fd);
9128                 goto close_fd;
9129         }
9130
9131         rc = llapi_layout_flags_get(layout, &flr_state);
9132         if (rc < 0) {
9133                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9134                         progname, fname, strerror(errno));
9135                 rc = -errno;
9136                 goto free_layout;
9137         }
9138
9139         flr_state &= LCM_FL_FLR_MASK;
9140         switch (flr_state) {
9141         case LCM_FL_NONE:
9142                 rc = -EINVAL;
9143                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
9144                         progname, fname, llapi_layout_flags_string(flr_state));
9145                 goto free_layout;
9146         default:
9147                 break;
9148         }
9149
9150         rc2 = 0;
9151         for (i = 0; i < ids_nr; i++) {
9152                 mirror_id_cbdata.mirror_id = mirror_ids[i];
9153                 mirror_id_cbdata.is_valid_id = false;
9154
9155                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
9156                                                &mirror_id_cbdata);
9157                 if (rc < 0) {
9158                         rc = -errno;
9159                         fprintf(stderr,
9160                                 "%s: '%s' failed to verify mirror id: %u.\n",
9161                                 progname, fname, mirror_ids[i]);
9162                         goto free_layout;
9163                 }
9164
9165                 if (!mirror_id_cbdata.is_valid_id) {
9166                         rc2 = -EINVAL;
9167                         fprintf(stderr,
9168                                 "%s: '%s' invalid specified mirror id: %u.\n",
9169                                 progname, fname, mirror_ids[i]);
9170                 }
9171         }
9172         rc = rc2;
9173
9174 free_layout:
9175         llapi_layout_free(layout);
9176         llapi_lease_release(fd);
9177 close_fd:
9178         close(fd);
9179 error:
9180         return rc;
9181 }
9182
9183 static inline
9184 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
9185                            __u16 *mirror_ids, int ids_nr)
9186 {
9187         struct llapi_resync_comp comp_array[1024] = { { 0 } };
9188         struct llapi_layout *layout;
9189         struct stat stbuf;
9190         uint32_t flr_state;
9191         uint64_t start;
9192         uint64_t end;
9193         int comp_size = 0;
9194         int idx;
9195         int fd;
9196         int rc;
9197         int rc2;
9198
9199         if (stat(fname, &stbuf) < 0) {
9200                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9201                         progname, fname, strerror(errno));
9202                 rc = -errno;
9203                 goto error;
9204         }
9205         if (!S_ISREG(stbuf.st_mode)) {
9206                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9207                         progname, fname);
9208                 rc = -EINVAL;
9209                 goto error;
9210         }
9211
9212         fd = open(fname, O_DIRECT | O_RDWR);
9213         if (fd < 0) {
9214                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9215                         progname, fname, strerror(errno));
9216                 rc = -errno;
9217                 goto error;
9218         }
9219
9220         layout = llapi_layout_get_by_fd(fd, 0);
9221         if (layout == NULL) {
9222                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9223                         progname, fname, strerror(errno));
9224                 rc = -errno;
9225                 goto close_fd;
9226         }
9227
9228         rc = llapi_layout_flags_get(layout, &flr_state);
9229         if (rc) {
9230                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9231                         progname, fname, strerror(errno));
9232                 rc = -errno;
9233                 goto free_layout;
9234         }
9235
9236         flr_state &= LCM_FL_FLR_MASK;
9237         if (flr_state == LCM_FL_NONE) {
9238                 rc = -EINVAL;
9239                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
9240                         progname, fname);
9241                 goto free_layout;
9242         }
9243
9244         /* get stale component info */
9245         comp_size = llapi_mirror_find_stale(layout, comp_array,
9246                                             ARRAY_SIZE(comp_array),
9247                                             mirror_ids, ids_nr);
9248         if (comp_size <= 0) {
9249                 rc = comp_size;
9250                 goto free_layout;
9251         }
9252
9253         ioc->lil_mode = LL_LEASE_WRLCK;
9254         ioc->lil_flags = LL_LEASE_RESYNC;
9255         rc = llapi_lease_set(fd, ioc);
9256         if (rc < 0) {
9257                 if (rc == -EALREADY)
9258                         rc = 0;
9259                 else
9260                         fprintf(stderr,
9261                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
9262                                 progname, fname, strerror(-rc));
9263                 goto free_layout;
9264         }
9265
9266         /* get the read range [start, end) */
9267         start = comp_array[0].lrc_start;
9268         end = comp_array[0].lrc_end;
9269         for (idx = 1; idx < comp_size; idx++) {
9270                 if (comp_array[idx].lrc_start < start)
9271                         start = comp_array[idx].lrc_start;
9272                 if (end < comp_array[idx].lrc_end)
9273                         end = comp_array[idx].lrc_end;
9274         }
9275
9276         rc = llapi_lease_check(fd);
9277         if (rc != LL_LEASE_WRLCK) {
9278                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
9279                         progname, fname);
9280                 goto free_layout;
9281         }
9282
9283         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
9284                                       start, end);
9285         if (rc < 0)
9286                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %s.\n",
9287                         progname, fname, strerror(-rc));
9288
9289         /* need to do the lease unlock even resync fails */
9290         ioc->lil_mode = LL_LEASE_UNLCK;
9291         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
9292         ioc->lil_count = 0;
9293         for (idx = 0; idx < comp_size; idx++) {
9294                 if (comp_array[idx].lrc_synced) {
9295                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
9296                         ioc->lil_count++;
9297                 }
9298         }
9299
9300         rc2 = llapi_lease_set(fd, ioc);
9301         /**
9302          * llapi_lease_set returns lease mode when it request to unlock
9303          * the lease lock.
9304          */
9305         if (rc2 <= 0) {
9306                 /* rc2 == 0 means lost lease lock */
9307                 if (rc2 == 0 && rc == 0)
9308                         rc = -EBUSY;
9309                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
9310                         progname, fname,
9311                         rc2 == 0 ? "lost lease lock" : strerror(-rc2));
9312         }
9313
9314 free_layout:
9315         llapi_layout_free(layout);
9316 close_fd:
9317         close(fd);
9318 error:
9319         return rc;
9320 }
9321
9322 static inline int lfs_mirror_resync(int argc, char **argv)
9323 {
9324         struct ll_ioc_lease *ioc = NULL;
9325         __u16 mirror_ids[128] = { 0 };
9326         int ids_nr = 0;
9327         int c;
9328         int rc = 0;
9329
9330         struct option long_opts[] = {
9331         { .val = 'o',   .name = "only",         .has_arg = required_argument },
9332         { .name = NULL } };
9333
9334         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
9335                 switch (c) {
9336                 case 'o':
9337                         rc = parse_mirror_ids(mirror_ids,
9338                                         sizeof(mirror_ids) / sizeof(__u16),
9339                                         optarg);
9340                         if (rc < 0) {
9341                                 fprintf(stderr,
9342                                         "%s: bad mirror ids '%s'.\n",
9343                                         argv[0], optarg);
9344                                 goto error;
9345                         }
9346                         ids_nr = rc;
9347                         break;
9348                 default:
9349                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
9350                                 argv[0], argv[optind - 1]);
9351                         rc = -EINVAL;
9352                         goto error;
9353                 }
9354         }
9355
9356         if (argc == optind) {
9357                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
9358                 rc = CMD_HELP;
9359                 goto error;
9360         }
9361
9362         if (ids_nr > 0 && argc > optind + 1) {
9363                 fprintf(stderr,
9364                     "%s: option '--only' cannot be used upon multiple files.\n",
9365                         argv[0]);
9366                 rc = CMD_HELP;
9367                 goto error;
9368
9369         }
9370
9371         if (ids_nr > 0) {
9372                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
9373                 if (rc < 0)
9374                         goto error;
9375         }
9376
9377         /* set the lease on the file */
9378         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
9379         if (ioc == NULL) {
9380                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
9381                         argv[0], strerror(errno));
9382                 rc = -errno;
9383                 goto error;
9384         }
9385
9386         for (; optind < argc; optind++) {
9387                 rc = lfs_mirror_resync_file(argv[optind], ioc,
9388                                             mirror_ids, ids_nr);
9389                 /* ignore previous file's error, continue with next file */
9390
9391                 /* reset ioc */
9392                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
9393         }
9394
9395         free(ioc);
9396 error:
9397         return rc;
9398 }
9399
9400 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
9401 {
9402         struct llapi_layout *layout;
9403         int rc;
9404
9405         layout = llapi_layout_get_by_fd(fd, 0);
9406         if (layout == NULL) {
9407                 fprintf(stderr, "could not get layout.\n");
9408                 return  -EINVAL;
9409         }
9410
9411         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
9412         if (rc < 0) {
9413                 fprintf(stderr, "failed to iterate layout\n");
9414                 llapi_layout_free(layout);
9415
9416                 return rc;
9417         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
9418                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
9419                 llapi_layout_free(layout);
9420
9421                 return -EINVAL;
9422         }
9423         llapi_layout_free(layout);
9424
9425         return 0;
9426 }
9427
9428 /**
9429  * Check whether two files are the same file
9430  * \retval      0  same file
9431  * \retval      1  not the same file
9432  * \retval      <0 error code
9433  */
9434 static inline int check_same_file(const char *f1, const char *f2)
9435 {
9436         struct stat stbuf1;
9437         struct stat stbuf2;
9438
9439         if (stat(f1, &stbuf1) < 0) {
9440                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
9441                         progname, f1, strerror(errno));
9442                 return -errno;
9443         }
9444
9445         if (stat(f2, &stbuf2) < 0) {
9446                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
9447                         progname, f2, strerror(errno));
9448                 return -errno;
9449         }
9450
9451         if (stbuf1.st_rdev == stbuf2.st_rdev &&
9452             stbuf1.st_ino == stbuf2.st_ino)
9453                 return 0;
9454
9455         return 1;
9456 }
9457
9458 static inline int lfs_mirror_read(int argc, char **argv)
9459 {
9460         int rc = CMD_HELP;
9461         __u16 mirror_id = 0;
9462         const char *outfile = NULL;
9463         char *fname;
9464         int fd = 0;
9465         int outfd;
9466         int c;
9467         void *buf;
9468         const size_t buflen = 4 << 20;
9469         off_t pos;
9470         struct option long_opts[] = {
9471         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
9472         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
9473         { .name = NULL } };
9474
9475         while ((c = getopt_long(argc, argv, "N:o:", long_opts, NULL)) >= 0) {
9476                 char *end;
9477
9478                 switch (c) {
9479                 case 'N':
9480                         mirror_id = strtoul(optarg, &end, 0);
9481                         if (*end != '\0' || mirror_id == 0) {
9482                                 fprintf(stderr,
9483                                         "%s %s: invalid mirror ID '%s'\n",
9484                                         progname, argv[0], optarg);
9485                                 return rc;
9486                         }
9487                         break;
9488                 case 'o':
9489                         outfile = optarg;
9490                         break;
9491                 default:
9492                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
9493                                 progname, argv[optind - 1]);
9494                         return -EINVAL;
9495                 }
9496         }
9497
9498         if (argc == optind) {
9499                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9500                         progname, argv[0]);
9501                 return rc;
9502         } else if (argc > optind + 1) {
9503                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9504                 return rc;
9505         }
9506
9507         if (mirror_id == 0) {
9508                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
9509                         progname, argv[0]);
9510                 return rc;
9511         }
9512
9513         /* open mirror file */
9514         fname = argv[optind];
9515
9516         if (outfile) {
9517                 rc = check_same_file(fname, outfile);
9518                 if (rc == 0) {
9519                         fprintf(stderr,
9520                         "%s %s: output file cannot be the mirrored file\n",
9521                                 progname, argv[0]);
9522                         return -EINVAL;
9523                 }
9524                 if (rc < 0)
9525                         return rc;
9526         }
9527
9528         fd = open(fname, O_DIRECT | O_RDONLY);
9529         if (fd < 0) {
9530                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9531                         progname, argv[0], fname, strerror(errno));
9532                 return rc;
9533         }
9534
9535         /* verify mirror id */
9536         rc = verify_mirror_id_by_fd(fd, mirror_id);
9537         if (rc) {
9538                 fprintf(stderr,
9539                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9540                         progname, argv[0], mirror_id, fname);
9541                 goto close_fd;
9542         }
9543
9544         /* open output file */
9545         if (outfile) {
9546                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
9547                 if (outfd < 0) {
9548                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
9549                                 progname, argv[0], outfile, strerror(errno));
9550                         rc = -errno;
9551                         goto close_fd;
9552                 }
9553         } else {
9554                 outfd = STDOUT_FILENO;
9555         }
9556
9557         /* allocate buffer */
9558         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
9559         if (rc) {
9560                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
9561                                 progname, argv[0], rc);
9562                 goto close_outfd;
9563         }
9564
9565         pos = 0;
9566         while (1) {
9567                 ssize_t bytes_read;
9568                 ssize_t written = 0;
9569
9570                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
9571                 if (bytes_read < 0) {
9572                         rc = bytes_read;
9573                         fprintf(stderr,
9574                                 "%s %s: fail to read data from mirror %u: %s\n",
9575                                 progname, argv[0], mirror_id, strerror(-rc));
9576                         goto free_buf;
9577                 }
9578
9579                 /* EOF reached */
9580                 if (bytes_read == 0)
9581                         break;
9582
9583                 while (written < bytes_read) {
9584                         ssize_t written2;
9585
9586                         written2 = write(outfd, buf + written,
9587                                          bytes_read - written);
9588                         if (written2 < 0) {
9589                                 fprintf(stderr,
9590                                         "%s %s: fail to write %s: %s\n",
9591                                         progname, argv[0], outfile ? : "STDOUT",
9592                                         strerror(errno));
9593                                 rc = -errno;
9594                                 goto free_buf;
9595                         }
9596                         written += written2;
9597                 }
9598
9599                 if (written != bytes_read) {
9600                         fprintf(stderr,
9601                 "%s %s: written %ld bytes does not match with %ld read.\n",
9602                                 progname, argv[0], written, bytes_read);
9603                         rc = -EIO;
9604                         goto free_buf;
9605                 }
9606
9607                 pos += bytes_read;
9608         }
9609
9610         fsync(outfd);
9611         rc = 0;
9612
9613 free_buf:
9614         free(buf);
9615 close_outfd:
9616         if (outfile)
9617                 close(outfd);
9618 close_fd:
9619         close(fd);
9620
9621         return rc;
9622 }
9623
9624 static inline int lfs_mirror_write(int argc, char **argv)
9625 {
9626         int rc = CMD_HELP;
9627         __u16 mirror_id = 0;
9628         const char *inputfile = NULL;
9629         char *fname;
9630         int fd = 0;
9631         int inputfd;
9632         int c;
9633         void *buf;
9634         const size_t buflen = 4 << 20;
9635         off_t pos;
9636         size_t page_size = sysconf(_SC_PAGESIZE);
9637         struct ll_ioc_lease_id ioc;
9638
9639         struct option long_opts[] = {
9640         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
9641         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
9642         { .name = NULL } };
9643
9644         while ((c = getopt_long(argc, argv, "N:i:", long_opts, NULL)) >= 0) {
9645                 char *end;
9646
9647                 switch (c) {
9648                 case 'N':
9649                         mirror_id = strtoul(optarg, &end, 0);
9650                         if (*end != '\0' || mirror_id == 0) {
9651                                 fprintf(stderr,
9652                                         "%s %s: invalid mirror ID '%s'\n",
9653                                         progname, argv[0], optarg);
9654                                 return rc;
9655                         }
9656                         break;
9657                 case 'i':
9658                         inputfile = optarg;
9659                         break;
9660                 default:
9661                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9662                                 progname, argv[optind - 1]);
9663                         return -EINVAL;
9664                 }
9665         }
9666
9667         if (argc == optind) {
9668                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9669                         progname, argv[0]);
9670                 return rc;
9671         } else if (argc > optind + 1) {
9672                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9673                 return rc;
9674         }
9675
9676         if (mirror_id == 0) {
9677                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
9678                         progname, argv[0]);
9679                 return rc;
9680         }
9681
9682         /* open mirror file */
9683         fname = argv[optind];
9684
9685         if (inputfile) {
9686                 rc = check_same_file(fname, inputfile);
9687                 if (rc == 0) {
9688                         fprintf(stderr,
9689                         "%s %s: input file cannot be the mirrored file\n",
9690                                 progname, argv[0]);
9691                         return -EINVAL;
9692                 }
9693                 if (rc < 0)
9694                         return rc;
9695         }
9696
9697         fd = open(fname, O_DIRECT | O_WRONLY);
9698         if (fd < 0) {
9699                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9700                         progname, argv[0], fname, strerror(errno));
9701                 return rc;
9702         }
9703
9704         /* verify mirror id */
9705         rc = verify_mirror_id_by_fd(fd, mirror_id);
9706         if (rc) {
9707                 fprintf(stderr,
9708                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9709                         progname, argv[0], mirror_id, fname);
9710                 goto close_fd;
9711         }
9712
9713         /* open input file */
9714         if (inputfile) {
9715                 inputfd = open(inputfile, O_RDONLY, 0644);
9716                 if (inputfd < 0) {
9717                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
9718                                 progname, argv[0], inputfile, strerror(errno));
9719                         rc = -errno;
9720                         goto close_fd;
9721                 }
9722         } else {
9723                 inputfd = STDIN_FILENO;
9724         }
9725
9726         /* allocate buffer */
9727         rc = posix_memalign(&buf, page_size, buflen);
9728         if (rc) {
9729                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
9730                         progname, argv[0], rc);
9731                 goto close_inputfd;
9732         }
9733
9734         /* prepare target mirror components instantiation */
9735         ioc.lil_mode = LL_LEASE_WRLCK;
9736         ioc.lil_flags = LL_LEASE_RESYNC;
9737         ioc.lil_mirror_id = mirror_id;
9738         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
9739         if (rc < 0) {
9740                 fprintf(stderr,
9741                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
9742                         progname, argv[0], fname, strerror(errno));
9743                 goto free_buf;
9744         }
9745
9746         pos = 0;
9747         while (1) {
9748                 ssize_t bytes_read;
9749                 ssize_t written;
9750                 size_t to_write;
9751
9752                 rc = llapi_lease_check(fd);
9753                 if (rc != LL_LEASE_WRLCK) {
9754                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
9755                                 progname, argv[0], fname);
9756                         goto free_buf;
9757                 }
9758
9759                 bytes_read = read(inputfd, buf, buflen);
9760                 if (bytes_read < 0) {
9761                         rc = bytes_read;
9762                         fprintf(stderr,
9763                                 "%s %s: fail to read data from '%s': %s\n",
9764                                 progname, argv[0], inputfile ? : "STDIN",
9765                                 strerror(errno));
9766                         rc = -errno;
9767                         goto free_buf;
9768                 }
9769
9770                 /* EOF reached */
9771                 if (bytes_read == 0)
9772                         break;
9773
9774                 /* round up to page align to make direct IO happy. */
9775                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
9776
9777                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
9778                                              pos);
9779                 if (written < 0) {
9780                         rc = written;
9781                         fprintf(stderr,
9782                               "%s %s: fail to write to mirror %u: %s\n",
9783                                 progname, argv[0], mirror_id,
9784                                 strerror(-rc));
9785                         goto free_buf;
9786                 }
9787
9788                 pos += bytes_read;
9789         }
9790
9791         if (pos & (page_size - 1)) {
9792                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
9793                 if (rc < 0)
9794                         goto free_buf;
9795         }
9796
9797         ioc.lil_mode = LL_LEASE_UNLCK;
9798         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
9799         ioc.lil_count = 0;
9800         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
9801         if (rc <= 0) {
9802                 if (rc == 0)
9803                         rc = -EBUSY;
9804                 fprintf(stderr,
9805                         "%s %s: release lease lock of '%s' failed: %s\n",
9806                         progname, argv[0], fname, strerror(errno));
9807                 goto free_buf;
9808         }
9809
9810         rc = 0;
9811
9812 free_buf:
9813         free(buf);
9814 close_inputfd:
9815         if (inputfile)
9816                 close(inputfd);
9817 close_fd:
9818         close(fd);
9819
9820         return rc;
9821 }
9822
9823 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
9824 {
9825         struct llapi_layout *layout;
9826         struct collect_ids_data cid = { .cid_ids = ids,
9827                                         .cid_count = 0,
9828                                         .cid_exclude = exclude_id, };
9829         int rc;
9830
9831         layout = llapi_layout_get_by_fd(fd, 0);
9832         if (layout == NULL) {
9833                 fprintf(stderr, "could not get layout\n");
9834                 return -EINVAL;
9835         }
9836
9837         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
9838         if (rc < 0) {
9839                 fprintf(stderr, "failed to iterate layout\n");
9840                 llapi_layout_free(layout);
9841
9842                 return rc;
9843         }
9844         llapi_layout_free(layout);
9845
9846         return cid.cid_count;
9847 }
9848
9849 static inline int lfs_mirror_copy(int argc, char **argv)
9850 {
9851         int rc = CMD_HELP;
9852         __u16 read_mirror_id = 0;
9853         __u16 ids[128] = { 0 };
9854         int count = 0;
9855         struct llapi_layout *layout = NULL;
9856         struct llapi_resync_comp comp_array[1024] = { { 0 } };
9857         int comp_size = 0;
9858         char *fname;
9859         int fd = 0;
9860         int c;
9861         int i;
9862         ssize_t copied;
9863         struct ll_ioc_lease *ioc = NULL;
9864         struct ll_ioc_lease_id *resync_ioc;
9865
9866         struct option long_opts[] = {
9867         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
9868         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
9869         { .name = NULL } };
9870
9871         while ((c = getopt_long(argc, argv, "i:o:", long_opts, NULL)) >= 0) {
9872                 char *end;
9873
9874                 switch (c) {
9875                 case 'i':
9876                         read_mirror_id = strtoul(optarg, &end, 0);
9877                         if (*end != '\0' || read_mirror_id == 0) {
9878                                 fprintf(stderr,
9879                                         "%s %s: invalid read mirror ID '%s'\n",
9880                                         progname, argv[0], optarg);
9881                                 return rc;
9882                         }
9883                         break;
9884                 case 'o':
9885                         if (!strcmp(optarg, "-1")) {
9886                                 /* specify all other mirrors */
9887                                 ids[0] = (__u16)-1;
9888                                 count = 1;
9889                         } else {
9890                                 count = parse_mirror_ids((__u16 *)ids,
9891                                                          ARRAY_SIZE(ids),
9892                                                          optarg);
9893                                 if (count < 0)
9894                                         return rc;
9895                         }
9896                         break;
9897                 default:
9898                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9899                                 progname, argv[optind - 1]);
9900                         return -EINVAL;
9901                 }
9902         }
9903
9904         if (argc == optind) {
9905                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9906                         progname, argv[0]);
9907                 return rc;
9908         } else if (argc > optind + 1) {
9909                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9910                 return rc;
9911         }
9912
9913         if (read_mirror_id == 0) {
9914                 fprintf(stderr,
9915                         "%s %s: no valid read mirror ID %d is provided\n",
9916                         progname, argv[0], read_mirror_id);
9917                 return rc;
9918         }
9919
9920         if (count == 0) {
9921                 fprintf(stderr,
9922                         "%s %s: no write mirror ID is provided\n",
9923                         progname, argv[0]);
9924                 return rc;
9925         }
9926
9927         for (i = 0; i < count; i++) {
9928                 if (read_mirror_id == ids[i]) {
9929                         fprintf(stderr,
9930                         "%s %s: read and write mirror ID cannot be the same\n",
9931                                 progname, argv[0]);
9932                         return rc;
9933                 }
9934         }
9935
9936         /* open mirror file */
9937         fname = argv[optind];
9938
9939         fd = open(fname, O_DIRECT | O_RDWR);
9940         if (fd < 0) {
9941                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9942                         progname, argv[0], fname, strerror(errno));
9943                 return rc;
9944         }
9945
9946         /* write to all other mirrors */
9947         if (ids[0] == (__u16)-1) {
9948                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
9949                 if (count <= 0) {
9950                         rc = count;
9951                         fprintf(stderr,
9952                         "%s %s: failed to get other mirror ids in '%s': %d\n",
9953                                 progname, argv[0], fname, rc);
9954                         goto close_fd;
9955                 }
9956         }
9957
9958         /* verify mirror id */
9959         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
9960         if (rc) {
9961                 fprintf(stderr,
9962                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9963                         progname, argv[0], read_mirror_id, fname);
9964                 goto close_fd;
9965         }
9966
9967         for (i = 0; i < count; i++) {
9968                 rc = verify_mirror_id_by_fd(fd, ids[i]);
9969                 if (rc) {
9970                         fprintf(stderr,
9971                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9972                                 progname, argv[0], ids[i], fname);
9973                         goto close_fd;
9974                 }
9975         }
9976
9977         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
9978         if (ioc == NULL) {
9979                 fprintf(stderr,
9980                         "%s %s: cannot alloc comp id array for ioc: %s\n",
9981                         progname, argv[0], strerror(errno));
9982                 rc = -errno;
9983                 goto close_fd;
9984         }
9985
9986         /* get stale component info */
9987         layout = llapi_layout_get_by_fd(fd, 0);
9988         if (layout == NULL) {
9989                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
9990                         progname, argv[0], fname, strerror(errno));
9991                 rc = -errno;
9992                 goto free_ioc;
9993         }
9994         comp_size = llapi_mirror_find_stale(layout, comp_array,
9995                                             ARRAY_SIZE(comp_array),
9996                                             ids, count);
9997         llapi_layout_free(layout);
9998         if (comp_size < 0) {
9999                 rc = comp_size;
10000                 goto free_ioc;
10001         }
10002
10003         /* prepare target mirror components instantiation */
10004         resync_ioc = (struct ll_ioc_lease_id *)ioc;
10005         resync_ioc->lil_mode = LL_LEASE_WRLCK;
10006         resync_ioc->lil_flags = LL_LEASE_RESYNC;
10007         if (count == 1)
10008                 resync_ioc->lil_mirror_id = ids[0];
10009         else
10010                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
10011         rc = llapi_lease_set(fd, ioc);
10012         if (rc < 0) {
10013                 fprintf(stderr,
10014                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
10015                         progname, argv[0], fname, strerror(errno));
10016                 goto free_ioc;
10017         }
10018
10019         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
10020         if (copied < 0) {
10021                 rc = copied;
10022                 fprintf(stderr, "%s %s: copy error: %d\n",
10023                         progname, argv[0], rc);
10024                 goto free_ioc;
10025         }
10026
10027         fprintf(stdout, "mirror copied successfully: ");
10028         for (i = 0; i < copied; i++)
10029                 fprintf(stdout, "%d ", ids[i]);
10030         fprintf(stdout, "\n");
10031
10032         ioc->lil_mode = LL_LEASE_UNLCK;
10033         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10034         ioc->lil_count = 0;
10035         for (i = 0; i < comp_size; i++) {
10036                 int j;
10037
10038                 for (j = 0; j < copied; j++) {
10039                         if (comp_array[i].lrc_mirror_id != ids[j])
10040                                 continue;
10041
10042                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
10043                         ioc->lil_count++;
10044                 }
10045         }
10046         rc = llapi_lease_set(fd, ioc);
10047         if (rc <= 0) {
10048                 if (rc == 0)
10049                         rc = -EBUSY;
10050                 fprintf(stderr,
10051                         "%s %s: release lease lock of '%s' failed: %s\n",
10052                         progname, argv[0], fname, strerror(errno));
10053                 goto free_ioc;
10054         }
10055
10056         rc = 0;
10057
10058 free_ioc:
10059         free(ioc);
10060 close_fd:
10061         close(fd);
10062
10063         return rc;
10064 }
10065 /**
10066  * struct verify_chunk - Mirror chunk to be verified.
10067  * @chunk:        [start, end) of the chunk.
10068  * @mirror_count: Number of mirror ids in @mirror_id array.
10069  * @mirror_id:    Array of valid mirror ids that cover the chunk.
10070  */
10071 struct verify_chunk {
10072         struct lu_extent chunk;
10073         unsigned int mirror_count;
10074         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
10075 };
10076
10077 /**
10078  * print_chunks() - Print chunk information.
10079  * @fname:       Mirrored file name.
10080  * @chunks:      Array of chunks.
10081  * @chunk_count: Number of chunks in @chunks array.
10082  *
10083  * This function prints [start, end) of each chunk in @chunks
10084  * for mirrored file @fname, and also prints the valid mirror ids
10085  * that cover the chunk.
10086  *
10087  * Return: void.
10088  */
10089 static inline
10090 void print_chunks(const char *fname, struct verify_chunk *chunks,
10091                   int chunk_count)
10092 {
10093         int i;
10094         int j;
10095
10096         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
10097         for (i = 0; i < chunk_count; i++) {
10098                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
10099
10100                 if (chunks[i].mirror_count == 0)
10101                         fprintf(stdout, "\t[");
10102                 else {
10103                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
10104                         for (j = 1; j < chunks[i].mirror_count; j++)
10105                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
10106                 }
10107                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
10108         }
10109         fprintf(stdout, "\n");
10110 }
10111
10112 /**
10113  * print_checksums() - Print CRC-32 checksum values.
10114  * @chunk: A chunk and its corresponding valid mirror ids.
10115  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
10116  *
10117  * This function prints CRC-32 checksum values on @chunk for
10118  * each valid mirror that covers it.
10119  *
10120  * Return: void.
10121  */
10122 static inline
10123 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
10124 {
10125         int i;
10126
10127         fprintf(stdout,
10128                 "CRC-32 checksum value for chunk "DEXT":\n",
10129                 PEXT(&chunk->chunk));
10130         for (i = 0; i < chunk->mirror_count; i++)
10131                 fprintf(stdout, "Mirror %u:\t%#lx\n",
10132                         chunk->mirror_id[i], crc[i]);
10133         fprintf(stdout, "\n");
10134 }
10135
10136 /**
10137  * filter_mirror_id() - Filter specified mirror ids.
10138  * @chunks:      Array of chunks.
10139  * @chunk_count: Number of chunks in @chunks array.
10140  * @mirror_ids:  Specified mirror ids to be verified.
10141  * @ids_nr:      Number of specified mirror ids.
10142  *
10143  * This function scans valid mirror ids that cover each chunk in @chunks
10144  * and filters specified mirror ids.
10145  *
10146  * Return: void.
10147  */
10148 static inline
10149 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
10150                       __u16 *mirror_ids, int ids_nr)
10151 {
10152         int i;
10153         int j;
10154         int k;
10155         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10156         unsigned int valid_count = 0;
10157
10158         for (i = 0; i < chunk_count; i++) {
10159                 if (chunks[i].mirror_count == 0)
10160                         continue;
10161
10162                 valid_count = 0;
10163                 for (j = 0; j < ids_nr; j++) {
10164                         for (k = 0; k < chunks[i].mirror_count; k++) {
10165                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
10166                                         valid_id[valid_count] = mirror_ids[j];
10167                                         valid_count++;
10168                                         break;
10169                                 }
10170                         }
10171                 }
10172
10173                 memcpy(chunks[i].mirror_id, valid_id,
10174                        sizeof(__u16) * valid_count);
10175                 chunks[i].mirror_count = valid_count;
10176         }
10177 }
10178
10179 /**
10180  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
10181  * @layout:      Mirror component list.
10182  * @chunks:      Array of chunks.
10183  * @chunks_size: Array size of @chunks.
10184  *
10185  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
10186  * to find out chunk segments and store them in @chunks array.
10187  *
10188  * The @mirror_id array in each element of @chunks will store the valid
10189  * mirror ids that cover the chunk. If a mirror component covering the
10190  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
10191  * will not be stored into the @mirror_id array, and the chunk for that
10192  * mirror will not be verified.
10193  *
10194  * The @mirror_count in each element of @chunks will store the number of
10195  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
10196  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
10197  * indicates the chunk is valid in only one mirror. In both cases, the
10198  * chunk will not be verified.
10199  *
10200  * Here is an example:
10201  *
10202  *  0      1M     2M     3M     4M           EOF
10203  *  +------+-------------+--------------------+
10204  *  |      |             |      S             |       mirror1
10205  *  +------+------+------+------+-------------+
10206  *  |             |   S  |   S  |             |       mirror2
10207  *  +-------------+------+------+-------------+
10208  *
10209  * prepared @chunks array will contain 5 elements:
10210  * (([0, 1M), [1, 2], 2),
10211  *  ([1M, 2M), [1, 2], 2),
10212  *  ([2M, 3M), [1], 1),
10213  *  ([3M, 4M], [], 0),
10214  *  ([4M, EOF), [2], 1))
10215  *
10216  * Return: the actual array size of @chunks on success
10217  *         or a negative error code on failure.
10218  */
10219 static inline
10220 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
10221                              struct verify_chunk *chunks,
10222                              size_t chunks_size)
10223 {
10224         uint64_t start;
10225         uint64_t end;
10226         uint32_t mirror_id;
10227         uint32_t flags;
10228         int idx = 0;
10229         int i = 0;
10230         int rc = 0;
10231
10232         memset(chunks, 0, sizeof(*chunks) * chunks_size);
10233
10234         while (1) {
10235                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
10236                 if (rc < 0) {
10237                         fprintf(stderr,
10238                                 "%s: move to the first layout component: %s.\n",
10239                                 progname, strerror(errno));
10240                         goto error;
10241                 }
10242
10243                 i = 0;
10244                 rc = 0;
10245                 chunks[idx].chunk.e_end = LUSTRE_EOF;
10246                 while (rc == 0) {
10247                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
10248                         if (rc < 0) {
10249                                 fprintf(stderr,
10250                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
10251                                         progname, strerror(errno));
10252                                 goto error;
10253                         }
10254
10255                         if (start > chunks[idx].chunk.e_start ||
10256                             end <= chunks[idx].chunk.e_start)
10257                                 goto next;
10258
10259                         if (end < chunks[idx].chunk.e_end)
10260                                 chunks[idx].chunk.e_end = end;
10261
10262                         rc = llapi_layout_comp_flags_get(layout, &flags);
10263                         if (rc < 0) {
10264                                 fprintf(stderr,
10265                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
10266                                         progname, strerror(errno));
10267                                 goto error;
10268                         }
10269
10270                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
10271                                 goto next;
10272
10273                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
10274                         if (rc < 0) {
10275                                 fprintf(stderr,
10276                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
10277                                         progname, strerror(errno));
10278                                 goto error;
10279                         }
10280
10281                         chunks[idx].mirror_id[i] = mirror_id;
10282                         i++;
10283                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
10284                                 fprintf(stderr,
10285                                         "%s: mirror_id array is too small.\n",
10286                                         progname);
10287                                 rc = -EINVAL;
10288                                 goto error;
10289                         }
10290
10291                 next:
10292                         rc = llapi_layout_comp_use(layout,
10293                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
10294                         if (rc < 0) {
10295                                 fprintf(stderr,
10296                                         "%s: move to the next layout component: %s.\n",
10297                                         progname, strerror(errno));
10298                                 goto error;
10299                         }
10300                 } /* loop through all components */
10301
10302                 chunks[idx].mirror_count = i;
10303
10304                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
10305                         break;
10306
10307                 idx++;
10308                 if (idx >= chunks_size) {
10309                         fprintf(stderr, "%s: chunks array is too small.\n",
10310                                 progname);
10311                         rc = -EINVAL;
10312                         goto error;
10313                 }
10314
10315                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
10316         }
10317
10318 error:
10319         return rc < 0 ? rc : idx + 1;
10320 }
10321
10322 /**
10323  * lfs_mirror_verify_chunk() - Verify a chunk.
10324  * @fd:        File descriptor of the mirrored file.
10325  * @file_size: Size of the mirrored file.
10326  * @chunk:     A chunk and its corresponding valid mirror ids.
10327  * @verbose:   Verbose mode.
10328  *
10329  * This function verifies a @chunk contains exactly the same data
10330  * ammong the mirrors that cover it.
10331  *
10332  * If @verbose is specified, then the function will print where the
10333  * differences are if the data do not match. Otherwise, it will
10334  * just return an error in that case.
10335  *
10336  * Return: 0 on success or a negative error code on failure.
10337  */
10338 static inline
10339 int lfs_mirror_verify_chunk(int fd, size_t file_size,
10340                             struct verify_chunk *chunk, int verbose)
10341 {
10342         const size_t buflen = 4 * 1024 * 1024; /* 4M */
10343         void *buf;
10344         size_t page_size = sysconf(_SC_PAGESIZE);
10345         ssize_t bytes_read;
10346         ssize_t bytes_done;
10347         size_t count;
10348         off_t pos;
10349         unsigned long crc;
10350         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10351         int i;
10352         int rc = 0;
10353
10354         if (file_size == 0)
10355                 return 0;
10356
10357         rc = posix_memalign(&buf, page_size, buflen);
10358         if (rc) /* error code is returned directly */
10359                 return -rc;
10360
10361         if (verbose > 1) {
10362                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
10363                         PEXT(&chunk->chunk));
10364                 for (i = 0; i < chunk->mirror_count; i++)
10365                         fprintf(stdout, " %u", chunk->mirror_id[i]);
10366                 fprintf(stdout, "\n");
10367         }
10368
10369         bytes_done = 0;
10370         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
10371         pos = chunk->chunk.e_start;
10372         while (bytes_done < count) {
10373                 /* compute initial CRC-32 checksum */
10374                 crc = crc32(0L, Z_NULL, 0);
10375                 memset(crc_array, 0, sizeof(crc_array));
10376
10377                 bytes_read = 0;
10378                 for (i = 0; i < chunk->mirror_count; i++) {
10379                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
10380                                                        buf, buflen, pos);
10381                         if (bytes_read < 0) {
10382                                 rc = bytes_read;
10383                                 fprintf(stderr,
10384                                         "%s: failed to read data from mirror %u: %s.\n",
10385                                         progname, chunk->mirror_id[i],
10386                                         strerror(-rc));
10387                                 goto error;
10388                         }
10389
10390                         /* compute new CRC-32 checksum */
10391                         crc_array[i] = crc32(crc, buf, bytes_read);
10392                 }
10393
10394                 if (verbose)
10395                         print_checksums(chunk, crc_array);
10396
10397                 /* compare CRC-32 checksum values */
10398                 for (i = 1; i < chunk->mirror_count; i++) {
10399                         if (crc_array[i] != crc_array[0]) {
10400                                 rc = -EINVAL;
10401
10402                                 fprintf(stderr,
10403                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
10404                                         progname, PEXT(&chunk->chunk),
10405                                         chunk->mirror_id[0],
10406                                         chunk->mirror_id[i]);
10407                         }
10408                 }
10409
10410                 pos += bytes_read;
10411                 bytes_done += bytes_read;
10412         }
10413
10414         if (verbose > 1 && rc == 0) {
10415                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
10416                         PEXT(&chunk->chunk));
10417                 for (i = 0; i < chunk->mirror_count; i++)
10418                         fprintf(stdout, " %u", chunk->mirror_id[i]);
10419                 fprintf(stdout, " PASS\n\n");
10420         }
10421
10422 error:
10423         free(buf);
10424         return rc;
10425 }
10426
10427 /**
10428  * lfs_mirror_verify_file() - Verify a mirrored file.
10429  * @fname:      Mirrored file name.
10430  * @mirror_ids: Specified mirror ids to be verified.
10431  * @ids_nr:     Number of specified mirror ids.
10432  * @verbose:    Verbose mode.
10433  *
10434  * This function verifies that each SYNC mirror of a mirrored file
10435  * specified by @fname contains exactly the same data.
10436  *
10437  * If @mirror_ids is specified, then the function will verify the
10438  * mirrors specified by @mirror_ids contain exactly the same data.
10439  *
10440  * If @verbose is specified, then the function will print where the
10441  * differences are if the data do not match. Otherwise, it will
10442  * just return an error in that case.
10443  *
10444  * Return: 0 on success or a negative error code on failure.
10445  */
10446 static inline
10447 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
10448                            int verbose)
10449 {
10450         struct verify_chunk chunks_array[1024] = { };
10451         struct llapi_layout *layout = NULL;
10452         struct stat stbuf;
10453         uint32_t flr_state;
10454         int fd;
10455         int chunk_count = 0;
10456         int idx = 0;
10457         int rc = 0;
10458         int rc1 = 0;
10459         int rc2 = 0;
10460
10461         if (stat(fname, &stbuf) < 0) {
10462                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10463                         progname, fname, strerror(errno));
10464                 rc = -errno;
10465                 goto error;
10466         }
10467
10468         if (!S_ISREG(stbuf.st_mode)) {
10469                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10470                         progname, fname);
10471                 rc = -EINVAL;
10472                 goto error;
10473         }
10474
10475         if (stbuf.st_size == 0) {
10476                 if (verbose)
10477                         fprintf(stdout, "%s: '%s' file size is 0.\n",
10478                                 progname, fname);
10479                 rc = 0;
10480                 goto error;
10481         }
10482
10483         fd = open(fname, O_DIRECT | O_RDONLY);
10484         if (fd < 0) {
10485                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10486                         progname, fname, strerror(errno));
10487                 rc = -errno;
10488                 goto error;
10489         }
10490
10491         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10492         if (rc < 0) {
10493                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10494                         progname, fname, strerror(errno));
10495                 goto close_fd;
10496         }
10497
10498         layout = llapi_layout_get_by_fd(fd, 0);
10499         if (layout == NULL) {
10500                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10501                         progname, fname, strerror(errno));
10502                 rc = -errno;
10503                 llapi_lease_release(fd);
10504                 goto close_fd;
10505         }
10506
10507         rc = llapi_layout_flags_get(layout, &flr_state);
10508         if (rc < 0) {
10509                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10510                         progname, fname, strerror(errno));
10511                 rc = -errno;
10512                 goto free_layout;
10513         }
10514
10515         flr_state &= LCM_FL_FLR_MASK;
10516         switch (flr_state) {
10517         case LCM_FL_NONE:
10518                 rc = -EINVAL;
10519                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10520                         progname, fname, llapi_layout_flags_string(flr_state));
10521                 goto free_layout;
10522         default:
10523                 break;
10524         }
10525
10526         /* find out mirror chunks to be verified */
10527         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
10528                                                ARRAY_SIZE(chunks_array));
10529         if (chunk_count < 0) {
10530                 rc = chunk_count;
10531                 goto free_layout;
10532         }
10533
10534         if (ids_nr > 0)
10535                 /* filter specified mirror ids */
10536                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
10537
10538         if (verbose > 2)
10539                 print_chunks(fname, chunks_array, chunk_count);
10540
10541         for (idx = 0; idx < chunk_count; idx++) {
10542                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
10543                         if (verbose)
10544                                 fprintf(stdout,
10545                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
10546                                         progname, fname,
10547                                         PEXT(&chunks_array[idx].chunk),
10548                                         (unsigned long long)stbuf.st_size);
10549                         break;
10550                 }
10551
10552                 if (chunks_array[idx].mirror_count == 0) {
10553                         fprintf(stderr,
10554                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
10555                                 progname, fname,
10556                                 PEXT(&chunks_array[idx].chunk));
10557                         if (verbose) {
10558                                 fprintf(stderr, "skipped\n");
10559                                 continue;
10560                         }
10561                         rc = -EINVAL;
10562                         fprintf(stderr, "failed\n");
10563                         goto free_layout;
10564                 }
10565
10566                 if (chunks_array[idx].mirror_count == 1) {
10567                         if (verbose)
10568                                 fprintf(stdout,
10569                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
10570                                         progname, fname,
10571                                         PEXT(&chunks_array[idx].chunk),
10572                                         chunks_array[idx].mirror_id[0]);
10573                         continue;
10574                 }
10575
10576                 rc = llapi_lease_check(fd);
10577                 if (rc != LL_LEASE_RDLCK) {
10578                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
10579                                 progname, fname);
10580                         goto free_layout;
10581                 }
10582
10583                 /* verify one chunk */
10584                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
10585                                               &chunks_array[idx], verbose);
10586                 if (rc1 < 0) {
10587                         rc2 = rc1;
10588                         if (!verbose) {
10589                                 rc = rc1;
10590                                 goto free_layout;
10591                         }
10592                 }
10593         }
10594
10595         if (rc2 < 0)
10596                 rc = rc2;
10597
10598 free_layout:
10599         llapi_layout_free(layout);
10600         llapi_lease_release(fd);
10601 close_fd:
10602         close(fd);
10603 error:
10604         return rc;
10605 }
10606
10607 /**
10608  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
10609  * @argc: The count of lfs mirror verify command line arguments.
10610  * @argv: Array of strings for lfs mirror verify command line arguments.
10611  *
10612  * This function parses lfs mirror verify command and verifies the
10613  * specified mirrored file(s).
10614  *
10615  * Return: 0 on success or a negative error code on failure.
10616  */
10617 static inline int lfs_mirror_verify(int argc, char **argv)
10618 {
10619         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10620         int ids_nr = 0;
10621         int c;
10622         int verbose = 0;
10623         int rc = 0;
10624         int rc1 = 0;
10625         char cmd[PATH_MAX];
10626
10627         struct option long_opts[] = {
10628         { .val = 'o',   .name = "only",         .has_arg = required_argument },
10629         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
10630         { .name = NULL } };
10631
10632         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
10633         progname = cmd;
10634         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
10635                 switch (c) {
10636                 case 'o':
10637                         rc = parse_mirror_ids(mirror_ids,
10638                                               ARRAY_SIZE(mirror_ids),
10639                                               optarg);
10640                         if (rc < 0) {
10641                                 fprintf(stderr,
10642                                         "%s: bad mirror ids '%s'.\n",
10643                                         progname, optarg);
10644                                 goto error;
10645                         }
10646                         ids_nr = rc;
10647                         if (ids_nr < 2) {
10648                                 fprintf(stderr,
10649                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
10650                                         progname);
10651                                 rc = CMD_HELP;
10652                                 goto error;
10653                         }
10654                         break;
10655                 case 'v':
10656                         verbose++;
10657                         break;
10658                 default:
10659                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
10660                                 progname, argv[optind - 1]);
10661                         rc = -EINVAL;
10662                         goto error;
10663                 }
10664         }
10665
10666         if (argc == optind) {
10667                 fprintf(stderr, "%s: no file name given.\n", progname);
10668                 rc = CMD_HELP;
10669                 goto error;
10670         }
10671
10672         if (ids_nr > 0 && argc > optind + 1) {
10673                 fprintf(stderr,
10674                         "%s: '--only' cannot be used upon multiple files.\n",
10675                         progname);
10676                 rc = CMD_HELP;
10677                 goto error;
10678
10679         }
10680
10681         if (ids_nr > 0) {
10682                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
10683                 if (rc < 0)
10684                         goto error;
10685         }
10686
10687         rc = 0;
10688         for (; optind < argc; optind++) {
10689                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
10690                                              verbose);
10691                 if (rc1 < 0)
10692                         rc = rc1;
10693         }
10694 error:
10695         return rc;
10696 }
10697
10698 /**
10699  * lfs_mirror() - Parse and execute lfs mirror commands.
10700  * @argc: The count of lfs mirror command line arguments.
10701  * @argv: Array of strings for lfs mirror command line arguments.
10702  *
10703  * This function parses lfs mirror commands and performs the
10704  * corresponding functions specified in mirror_cmdlist[].
10705  *
10706  * Return: 0 on success or an error code on failure.
10707  */
10708 static int lfs_mirror(int argc, char **argv)
10709 {
10710         char cmd[PATH_MAX];
10711         int rc = 0;
10712
10713         setlinebuf(stdout);
10714
10715         Parser_init("lfs-mirror > ", mirror_cmdlist);
10716
10717         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
10718         progname = cmd;
10719         program_invocation_short_name = cmd;
10720         if (argc > 1)
10721                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
10722         else
10723                 rc = Parser_commands();
10724
10725         return rc < 0 ? -rc : rc;
10726 }
10727
10728 static void lustre_som_swab(struct lustre_som_attrs *attrs)
10729 {
10730 #if __BYTE_ORDER == __BIG_ENDIAN
10731         __swab16s(&attrs->lsa_valid);
10732         __swab64s(&attrs->lsa_size);
10733         __swab64s(&attrs->lsa_blocks);
10734 #endif
10735 }
10736
10737 enum lfs_som_type {
10738         LFS_SOM_SIZE = 0x1,
10739         LFS_SOM_BLOCKS = 0x2,
10740         LFS_SOM_FLAGS = 0x4,
10741         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
10742                            LFS_SOM_FLAGS,
10743 };
10744
10745 static int lfs_getsom(int argc, char **argv)
10746 {
10747         const char *path;
10748         struct lustre_som_attrs *attrs;
10749         char buf[sizeof(*attrs) + 64];
10750         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
10751         int rc = 0, c;
10752
10753         while ((c = getopt(argc, argv, "sbf")) != -1) {
10754                 switch (c) {
10755                 case 's':
10756                         type = LFS_SOM_SIZE;
10757                         break;
10758                 case 'b':
10759                         type = LFS_SOM_BLOCKS;
10760                         break;
10761                 case 'f':
10762                         type = LFS_SOM_FLAGS;
10763                         break;
10764                 default:
10765                         fprintf(stderr, "%s: invalid option '%c'\n",
10766                                 progname, optopt);
10767                         return CMD_HELP;
10768                 }
10769         }
10770
10771         argc -= optind;
10772         argv += optind;
10773
10774         if (argc != 1) {
10775                 fprintf(stderr, "%s: %s\n",
10776                         progname, argc == 0 ? "miss file target" :
10777                         "input more than 2 files");
10778                 return CMD_HELP;
10779         }
10780
10781         path = argv[0];
10782         attrs = (void *)buf;
10783         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
10784         if (rc < 0) {
10785                 rc = -errno;
10786                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
10787                         argv[0], strerror(errno), errno);
10788                 return rc;
10789         }
10790
10791         lustre_som_swab(attrs);
10792
10793         switch (type) {
10794         case LFS_SOM_ATTR_ALL:
10795                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
10796                        path, (unsigned long long)attrs->lsa_size,
10797                        (unsigned long long)attrs->lsa_blocks,
10798                        attrs->lsa_valid);
10799                 break;
10800         case LFS_SOM_SIZE:
10801                 printf("%llu\n", (unsigned long long)attrs->lsa_size);
10802                 break;
10803         case LFS_SOM_BLOCKS:
10804                 printf("%llu\n", (unsigned long long)attrs->lsa_blocks);
10805                 break;
10806         case LFS_SOM_FLAGS:
10807                 printf("%x\n", attrs->lsa_valid);
10808                 break;
10809         default:
10810                 fprintf(stderr, "%s: unknown option\n", progname);
10811                 return CMD_HELP;
10812         }
10813
10814         return 0;
10815 }
10816
10817 /**
10818  * lfs_mirror_list_commands() - List lfs mirror commands.
10819  * @argc: The count of command line arguments.
10820  * @argv: Array of strings for command line arguments.
10821  *
10822  * This function lists lfs mirror commands defined in mirror_cmdlist[].
10823  *
10824  * Return: 0 on success.
10825  */
10826 static int lfs_mirror_list_commands(int argc, char **argv)
10827 {
10828         char buffer[81] = "";
10829
10830         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
10831                              NULL, 0, 4);
10832
10833         return 0;
10834 }
10835
10836 static int lfs_pcc_attach(int argc, char **argv)
10837 {
10838         struct option long_opts[] = {
10839         { .val = 'i',   .name = "id",   .has_arg = required_argument },
10840         { .name = NULL } };
10841         int c;
10842         int rc = 0;
10843         __u32 archive_id = 0;
10844         const char *path;
10845         char *end;
10846         char fullpath[PATH_MAX];
10847         enum lu_pcc_type type = LU_PCC_READWRITE;
10848
10849         optind = 0;
10850         while ((c = getopt_long(argc, argv, "i:",
10851                                 long_opts, NULL)) != -1) {
10852                 switch (c) {
10853                 case 'i':
10854                         archive_id = strtoul(optarg, &end, 0);
10855                         if (*end != '\0' || archive_id == 0) {
10856                                 fprintf(stderr, "error: %s: bad archive ID "
10857                                         "'%s'\n", argv[0], optarg);
10858                                 return CMD_HELP;
10859                         }
10860                         break;
10861                 case '?':
10862                         return CMD_HELP;
10863                 default:
10864                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10865                                 argv[0], argv[optind - 1]);
10866                         return CMD_HELP;
10867                 }
10868         }
10869
10870         if (archive_id == 0) {
10871                 fprintf(stderr, "%s: must specify attach ID\n", argv[0]);
10872                 return CMD_HELP;
10873         }
10874
10875         if (argc <= optind) {
10876                 fprintf(stderr, "%s: must specify one or more file names\n",
10877                         argv[0]);
10878                 return CMD_HELP;
10879         }
10880
10881         while (optind < argc) {
10882                 int rc2;
10883
10884                 path = argv[optind++];
10885                 if (realpath(path, fullpath) == NULL) {
10886                         fprintf(stderr, "%s: could not find path '%s': %s\n",
10887                                 argv[0], path, strerror(errno));
10888                         if (rc == 0)
10889                                 rc = -EINVAL;
10890                         continue;
10891                 }
10892
10893                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
10894                 if (rc2 < 0) {
10895                         fprintf(stderr, "%s: cannot attach '%s' to PCC "
10896                                 "with archive ID '%u': %s\n", argv[0],
10897                                 path, archive_id, strerror(-rc2));
10898                         if (rc == 0)
10899                                 rc = rc2;
10900                 }
10901         }
10902         return rc;
10903 }
10904
10905 static int lfs_pcc_attach_fid(int argc, char **argv)
10906 {
10907         struct option long_opts[] = {
10908         { .val = 'i',   .name = "id",   .has_arg = required_argument },
10909         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
10910         { .name = NULL } };
10911         char                     short_opts[] = "i:m:";
10912         int                      c;
10913         int                      rc = 0;
10914         __u32                    archive_id = 0;
10915         char                    *end;
10916         const char              *mntpath = NULL;
10917         const char              *fidstr;
10918         enum lu_pcc_type         type = LU_PCC_READWRITE;
10919
10920         optind = 0;
10921         while ((c = getopt_long(argc, argv, short_opts,
10922                                 long_opts, NULL)) != -1) {
10923                 switch (c) {
10924                 case 'i':
10925                         archive_id = strtoul(optarg, &end, 0);
10926                         if (*end != '\0') {
10927                                 fprintf(stderr, "error: %s: bad archive ID "
10928                                         "'%s'\n", argv[0], optarg);
10929                                 return CMD_HELP;
10930                         }
10931                         break;
10932                 case 'm':
10933                         mntpath = optarg;
10934                         break;
10935                 case '?':
10936                         return CMD_HELP;
10937                 default:
10938                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10939                                 argv[0], argv[optind - 1]);
10940                         return CMD_HELP;
10941                 }
10942         }
10943
10944         if (archive_id == 0) {
10945                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
10946                 return CMD_HELP;
10947         }
10948
10949         if (mntpath == NULL) {
10950                 fprintf(stderr, "%s: must specify Lustre mount point\n",
10951                         argv[0]);
10952                 return CMD_HELP;
10953         }
10954
10955         if (argc <= optind) {
10956                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
10957                 return CMD_HELP;
10958         }
10959
10960         while (optind < argc) {
10961                 int rc2;
10962
10963                 fidstr = argv[optind++];
10964
10965                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
10966                                                archive_id, type);
10967                 if (rc2 < 0) {
10968                         fprintf(stderr, "%s: cannot attach '%s' on '%s' to PCC "
10969                                 "with archive ID '%u': %s\n", argv[0],
10970                                 fidstr, mntpath, archive_id, strerror(rc2));
10971                 }
10972                 if (rc == 0 && rc2 < 0)
10973                         rc = rc2;
10974         }
10975         return rc;
10976 }
10977
10978 static int lfs_pcc_detach(int argc, char **argv)
10979 {
10980         struct option long_opts[] = {
10981         { .val = 'k',   .name = "keep", .has_arg = no_argument },
10982         { .name = NULL } };
10983         char                     short_opts[] = "k";
10984         int                      c;
10985         int                      rc = 0;
10986         const char              *path;
10987         char                     fullpath[PATH_MAX];
10988         __u32                    detach_opt = PCC_DETACH_OPT_UNCACHE;
10989
10990         optind = 0;
10991         while ((c = getopt_long(argc, argv, short_opts,
10992                                 long_opts, NULL)) != -1) {
10993                 switch (c) {
10994                 case 'k':
10995                         detach_opt = PCC_DETACH_OPT_NONE;
10996                         break;
10997                 case '?':
10998                         return CMD_HELP;
10999                 default:
11000                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11001                                 argv[0], argv[optind - 1]);
11002                         return CMD_HELP;
11003                 }
11004         }
11005
11006         while (optind < argc) {
11007                 int rc2;
11008
11009                 path = argv[optind++];
11010                 if (realpath(path, fullpath) == NULL) {
11011                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11012                                 argv[0], path, strerror(errno));
11013                         if (rc == 0)
11014                                 rc = -EINVAL;
11015                         continue;
11016                 }
11017
11018                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
11019                 if (rc2 < 0) {
11020                         rc2 = -errno;
11021                         fprintf(stderr, "%s: cannot detach '%s' from PCC: "
11022                                 "%s\n", argv[0], path, strerror(errno));
11023                         if (rc == 0)
11024                                 rc = rc2;
11025                 }
11026         }
11027         return rc;
11028 }
11029
11030 static int lfs_pcc_detach_fid(int argc, char **argv)
11031 {
11032         struct option long_opts[] = {
11033         { .val = 'k',   .name = "keep", .has_arg = no_argument },
11034         { .name = NULL } };
11035         char             short_opts[] = "k";
11036         int              c;
11037         int              rc = 0;
11038         const char      *fid;
11039         const char      *mntpath;
11040         __u32            detach_opt = PCC_DETACH_OPT_UNCACHE;
11041
11042         optind = 0;
11043         while ((c = getopt_long(argc, argv, short_opts,
11044                                 long_opts, NULL)) != -1) {
11045                 switch (c) {
11046                 case 'k':
11047                         detach_opt = PCC_DETACH_OPT_NONE;
11048                         break;
11049                 case '?':
11050                         return CMD_HELP;
11051                 default:
11052                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11053                                 argv[0], argv[optind - 1]);
11054                         return CMD_HELP;
11055                 }
11056         }
11057
11058         mntpath = argv[optind++];
11059
11060         while (optind < argc) {
11061                 int rc2;
11062
11063                 fid = argv[optind++];
11064
11065                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
11066                 if (rc2 < 0) {
11067                         fprintf(stderr, "%s: cannot detach '%s' on '%s' "
11068                                 "from PCC: %s\n", argv[0], fid, mntpath,
11069                                 strerror(-rc2));
11070                         if (rc == 0)
11071                                 rc = rc2;
11072                 }
11073         }
11074         return rc;
11075 }
11076
11077 static int lfs_pcc_state(int argc, char **argv)
11078 {
11079         int                      rc = 0;
11080         const char              *path;
11081         char                     fullpath[PATH_MAX];
11082         struct lu_pcc_state      state;
11083
11084         optind = 1;
11085
11086         if (argc <= 1) {
11087                 fprintf(stderr, "%s: must specify one or more file names\n",
11088                         argv[0]);
11089                 return CMD_HELP;
11090         }
11091
11092         while (optind < argc) {
11093                 int rc2;
11094
11095                 path = argv[optind++];
11096                 if (realpath(path, fullpath) == NULL) {
11097                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11098                                 argv[0], path, strerror(errno));
11099                         if (rc == 0)
11100                                 rc = -EINVAL;
11101                         continue;
11102                 }
11103
11104                 rc2 = llapi_pcc_state_get(fullpath, &state);
11105                 if (rc2 < 0) {
11106                         if (rc == 0)
11107                                 rc = rc2;
11108                         fprintf(stderr, "%s: cannot get PCC state of '%s': "
11109                                 "%s\n", argv[0], path, strerror(-rc2));
11110                         continue;
11111                 }
11112
11113                 printf("file: %s", path);
11114                 printf(", type: %s", pcc_type2string(state.pccs_type));
11115                 if (state.pccs_type == LU_PCC_NONE &&
11116                     state.pccs_open_count == 0) {
11117                         printf("\n");
11118                         continue;
11119                 }
11120
11121                 printf(", PCC file: %s", state.pccs_path);
11122                 printf(", user number: %u", state.pccs_open_count);
11123                 printf(", flags: %x", state.pccs_flags);
11124                 printf("\n");
11125         }
11126         return rc;
11127 }
11128
11129 /**
11130  * lfs_pcc_list_commands() - List lfs pcc commands.
11131  * @argc: The count of command line arguments.
11132  * @argv: Array of strings for command line arguments.
11133  *
11134  * This function lists lfs pcc commands defined in pcc_cmdlist[].
11135  *
11136  * Return: 0 on success.
11137  */
11138 static int lfs_pcc_list_commands(int argc, char **argv)
11139 {
11140         char buffer[81] = "";
11141
11142         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
11143                              NULL, 0, 4);
11144
11145         return 0;
11146 }
11147
11148 /**
11149  * lfs_pcc() - Parse and execute lfs pcc commands.
11150  * @argc: The count of lfs pcc command line arguments.
11151  * @argv: Array of strings for lfs pcc command line arguments.
11152  *
11153  * This function parses lfs pcc commands and performs the
11154  * corresponding functions specified in pcc_cmdlist[].
11155  *
11156  * Return: 0 on success or an error code on failure.
11157  */
11158 static int lfs_pcc(int argc, char **argv)
11159 {
11160         char cmd[PATH_MAX];
11161         int rc = 0;
11162
11163         setlinebuf(stdout);
11164
11165         Parser_init("lfs-pcc > ", pcc_cmdlist);
11166
11167         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11168         progname = cmd;
11169         program_invocation_short_name = cmd;
11170         if (argc > 1)
11171                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
11172         else
11173                 rc = Parser_commands();
11174
11175         return rc < 0 ? -rc : rc;
11176 }
11177
11178 static int lfs_list_commands(int argc, char **argv)
11179 {
11180         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
11181
11182         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
11183
11184         return 0;
11185 }
11186
11187 int main(int argc, char **argv)
11188 {
11189         int rc;
11190
11191         /* Ensure that liblustreapi constructor has run */
11192         if (!llapi_liblustreapi_initialized())
11193                 fprintf(stderr, "liblustreapi was not properly initialized\n");
11194
11195         setlinebuf(stdout);
11196         opterr = 0;
11197
11198         Parser_init("lfs > ", cmdlist);
11199
11200         progname = program_invocation_short_name; /* Used in error messages */
11201         if (argc > 1) {
11202                 llapi_set_command_name(argv[1]);
11203                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
11204                 llapi_clear_command_name();
11205         } else {
11206                 rc = Parser_commands();
11207         }
11208
11209         return rc < 0 ? -rc : rc;
11210 }
11211
11212 #ifdef _LUSTRE_IDL_H_
11213 /* Everything we need here should be included by lustreapi.h. */
11214 # error "lfs should not depend on lustre_idl.h"
11215 #endif /* _LUSTRE_IDL_H_ */