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         "                 [--mirror_count|-N[mirror_count]]\n"          \
 190         "                 [--ost|-o <ost_indices>]\n"                   \
 191         "                 [--pool|-p <pool_name>]\n"                    \
 192         "                 [--yaml|-y <yaml_template_file>]\n"           \
 193         "                 [--copy=<lustre_src>]\n"
 194
 195 #define SSM_HELP_COMMON \
 196         "\tstripe_count: Number of OSTs to stripe over (0=fs default, -1 all)\n" \
 197         "\t              Using -C instead of -c allows overstriping, which\n" \
 198         "\t              will place more than one stripe per OST if\n" \
 199         "\t              stripe_count is greater than the number of OSTs\n" \
 200         "\tstart_ost_idx: OST index of first stripe (-1=default round robin)\n"\
 201         "\tstripe_size:  Number of bytes on each OST (0=fs default)\n" \
 202         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 203         "\t              respectively)\n"                               \
 204         "\tpool_name:    Name of OST pool to use (default none)\n"      \
 205         "\tlayout:       stripe pattern type: raid0, mdt (default raid0)\n"\
 206         "\tost_indices:  List of OST indices, can be repeated multiple times\n"\
 207         "\t              Indices be specified in a format of:\n"        \
 208         "\t                -o <ost_1>,<ost_i>-<ost_j>,<ost_n>\n"        \
 209         "\t              Or:\n"                                         \
 210         "\t                -o <ost_1> -o <ost_i>-<ost_j> -o <ost_n>\n"  \
 211         "\t              If --pool is set with --ost then the OSTs\n"   \
 212         "\t              must be the members of the pool.\n"            \
 213         "\tcomp_end:     Extent end of component, start after previous end.\n"\
 214         "\t              Can be specified with K, M or G (for KB, MB, GB\n" \
 215         "\t              respectively, -1 for EOF). Must be a multiple of\n"\
 216         "\t              stripe_size.\n"                                      \
 217         "\tyaml_template_file:\n"                                             \
 218         "\t              YAML layout template file, can't be used with -c,\n" \
 219         "\t              -i, -S, -p, -o, or -E arguments.\n"                  \
 220         "\tlustre_src:   Lustre file/dir whose layout info is used to set\n"  \
 221         "\t              another lustre file or directory, can't used with\n" \
 222         "\t              -c, -i, -S, -p, -o, or -E arguments.\n"
 223
 224 #define MIRROR_CREATE_HELP                                                     \
 225         "\tmirror_count: Number of mirrors to be created with the upcoming\n"  \
 226         "\t              setstripe layout options\n"                           \
 227         "\t              It defaults to 1 if not specified; if specified,\n"   \
 228         "\t              it must follow the option without a space.\n"         \
 229         "\t              The option can also be repeated multiple times to\n"  \
 230         "\t              separate mirrors that have different layouts.\n"      \
 231         "\tSETSTRIPE_OPTIONS: Mirror layout as with 'setstripe'\n"             \
 232         "\t              It can be a plain layout or a composite layout.\n"    \
 233         "\t              If not specified, the stripe options inherited\n"     \
 234         "\t              from the previous component will be used.\n"          \
 235         "\tflags:        set flags to the component of the current mirror.\n"  \
 236         "\t              Only \"prefer\" flag is supported so far.\n"
 237
 238 #define MIRROR_EXTEND_HELP                                                     \
 239         MIRROR_CREATE_HELP                                                     \
 240         "\tvictim_file:  The layout of victim_file will be split and used\n"   \
 241         "\t              as a mirror added to the mirrored file.\n"            \
 242         "\tno-verify:    This option indicates not to verify the mirror(s)\n"  \
 243         "\t              from victim file(s) in case the victim file(s)\n"     \
 244         "\t              contains the same data as the original mirrored\n"    \
 245         "\t              file.\n"
 246
 247 #define MIRROR_EXTEND_USAGE                                                    \
 248         "                 {--mirror-count|-N[mirror_count]}\n"                 \
 249         "                 [SETSTRIPE_OPTIONS|-f|--file <victim_file>]\n"       \
 250         "                 [--no-verify]\n"
 251
 252 #define SETSTRIPE_USAGE                                                 \
 253         SSM_CMD_COMMON("setstripe")                                     \
 254         MIRROR_EXTEND_USAGE                                             \
 255         "                 <directory|filename>\n"                       \
 256         SSM_HELP_COMMON                                                 \
 257         MIRROR_EXTEND_HELP
 258
 259 #define MIGRATE_USAGE                                                   \
 260         SSM_CMD_COMMON("migrate  ")                                     \
 261         "                 [--block|-b] [--non-block|-n]\n"              \
 262         "                 [--non-direct|-D] [--verbose|-v]\n"           \
 263         "                 <filename>\n"                                 \
 264         SSM_HELP_COMMON                                                 \
 265         "\n"                                                            \
 266         "\tblock:        Block file access during data migration (default)\n" \
 267         "\tnon-block:    Abort migrations if concurrent access is detected\n" \
 268         "\tnon-direct:   Do not use direct I/O to copy file contents\n" \
 269         "\tverbose:      Print each filename as it is migrated\n"       \
 270
 271 #define SETDIRSTRIPE_USAGE                                              \
 272         "               [--mdt-count|-c stripe_count>\n"                \
 273         "               [--mdt-hash|-H mdt_hash]\n"                     \
 274         "               [--mdt-index|-i mdt_index[,mdt_index,...]\n"    \
 275         "               [--default|-D] [--mode|-o mode] <dir>\n"        \
 276         "\tstripe_count: stripe count of the striped directory\n"       \
 277         "\tmdt_index: MDT index of first stripe\n"                      \
 278         "\tmdt_hash:  hash type of the striped directory. mdt types:\n" \
 279         "       fnv_1a_64 FNV-1a hash algorithm (default)\n"            \
 280         "       all_char  sum of characters % MDT_COUNT (not recommended)\n" \
 281         "       space     create subdirectories with balanced space usage\n" \
 282         "\tdefault_stripe: set default dirstripe of the directory\n"    \
 283         "\tmode: the file access permission of the directory (octal)\n" \
 284         "To create dir with a foreign (free format) layout :\n" \
 285         "setdirstripe|mkdir --foreign[=<foreign_type>] -x|-xattr <string> " \
 286                 "[--mode|-m mode] [--flags <hex>] <dir>\n" \
 287         "\tmode: the mode of the directory\n" \
 288         "\tforeign_type: none or daos\n"
 289
 290 /**
 291  * command_t mirror_cmdlist - lfs mirror commands.
 292  */
 293 command_t mirror_cmdlist[] = {
 294         { .pc_name = "create", .pc_func = lfs_mirror_create,
 295           .pc_help = "Create a mirrored file.\n"
 296                 "usage: lfs mirror create "
 297                 "<--mirror-count|-N[mirror_count]> "
 298                 "[SETSTRIPE_OPTIONS] ... <filename|directory> ...\n"
 299           MIRROR_CREATE_HELP },
 300         { .pc_name = "delete", .pc_func = lfs_mirror_delete,
 301           .pc_help = "delete a mirror from a file.\n"
 302                 "usage: lfs mirror delete {--comp-id|-I <comp_id>|-p <pool>} <mirrored_file> ...\n"
 303         },
 304         { .pc_name = "extend", .pc_func = lfs_mirror_extend,
 305           .pc_help = "Extend a mirrored file.\n"
 306                 "usage: lfs mirror extend "
 307                 "<--mirror-count|-N[mirror_count]> [--no-verify] "
 308                 "[SETSTRIPE_OPTIONS|-f <victim_file>] ... <filename> ...\n"
 309           MIRROR_EXTEND_HELP },
 310         { .pc_name = "split", .pc_func = lfs_mirror_split,
 311           .pc_help = "Split a mirrored file.\n"
 312         "usage: lfs mirror split <--mirror-id <mirror_id> |\n"
 313         "\t             <--component-id|-I <comp_id>|-p <pool>> [--destroy|-d]\n"
 314         "\t             [-f <new_file>] <mirrored_file> ...\n"
 315         "\tmirror_id:   The numerical unique identifier for a mirror. It\n"
 316         "\t             can be fetched by lfs getstripe command.\n"
 317         "\tcomp_id:     Unique component ID within a mirror.\n"
 318         "\tpool:        Components on specified pool.\n"
 319         "\tnew_file:    This option indicates the layout of the split\n"
 320         "\t             mirror will be stored into. If not specified,\n"
 321         "\t             a new file named <mirrored_file>.mirror~<mirror_id>\n"
 322         "\t             will be used.\n" },
 323         { .pc_name = "read", .pc_func = lfs_mirror_read,
 324           .pc_help = "Read the content of a specified mirror of a file.\n"
 325                 "usage: lfs mirror read <--mirror-id|-N <mirror_id> "
 326                 "[--outfile|-o <output_file>] <mirrored_file>\n" },
 327         { .pc_name = "write", .pc_func = lfs_mirror_write,
 328           .pc_help = "Write to a specified mirror of a file.\n"
 329                 "usage: lfs mirror write <--mirror-id|-N <mirror_id> "
 330                 "[--inputfile|-i <input_file>] <mirrored_file>\n" },
 331         { .pc_name = "copy", .pc_func = lfs_mirror_copy,
 332           .pc_help = "Copy a specified mirror to other mirror(s) of a file.\n"
 333                 "usage: lfs mirror copy <--read-mirror|-i <id0>> "
 334                 "<--write-mirror|-o <id1,id2>> <mirrored_file>\n" },
 335         { .pc_name = "resync", .pc_func = lfs_mirror_resync,
 336           .pc_help = "Resynchronizes out-of-sync mirrored file(s).\n"
 337                 "usage: lfs mirror resync [--only <mirror_id[,...]>] "
 338                 "<mirrored file> [<mirrored file2>...]\n"},
 339         { .pc_name = "verify", .pc_func = lfs_mirror_verify,
 340           .pc_help = "Verify mirrored file(s).\n"
 341                 "usage: lfs mirror verify "
 342                 "[--only <mirror_id,mirror_id2[,...]>] "
 343                 "[--verbose|-v] <mirrored_file> [<mirrored_file2> ...]\n"},
 344         { .pc_name = "list-commands", .pc_func = lfs_mirror_list_commands,
 345           .pc_help = "list commands supported by lfs mirror"},
 346         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 347         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 348         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 349         { .pc_help = NULL }
 350 };
 351
 352 /**
 353  * command_t pcc_cmdlist - lfs pcc commands.
 354  */
 355 command_t pcc_cmdlist[] = {
 356         { .pc_name = "attach", .pc_func = lfs_pcc_attach,
 357           .pc_help = "Attach given files to the Persistent Client Cache.\n"
 358                 "usage: lfs pcc attach <--id|-i NUM> <file> ...\n"
 359                 "\t-i: archive id for RW-PCC\n" },
 360         { .pc_name = "attach_fid", .pc_func = lfs_pcc_attach_fid,
 361           .pc_help = "Attach given files into PCC by FID(s).\n"
 362                 "usage: lfs pcc attach_id <--id|-i NUM> <--mnt|-m mnt> "
 363                 "<fid> ...\n"
 364                 "\t-i: archive id for RW-PCC\n"
 365                 "\t-m: Lustre mount point\n" },
 366         { .pc_name = "state", .pc_func = lfs_pcc_state,
 367           .pc_help = "Display the PCC state for given files.\n"
 368                 "usage: lfs pcc state <file> ...\n" },
 369         { .pc_name = "detach", .pc_func = lfs_pcc_detach,
 370           .pc_help = "Detach given files from the Persistent Client Cache.\n"
 371                 "usage: lfs pcc detach <file> ...\n" },
 372         { .pc_name = "detach_fid", .pc_func = lfs_pcc_detach_fid,
 373           .pc_help = "Detach given files from PCC by FID(s).\n"
 374                 "usage: lfs pcc detach_fid <mntpath> <fid>...\n" },
 375         { .pc_name = "list-commands", .pc_func = lfs_pcc_list_commands,
 376           .pc_help = "list commands supported by lfs pcc"},
 377         { .pc_name = "help", .pc_func = Parser_help, .pc_help = "help" },
 378         { .pc_name = "exit", .pc_func = Parser_quit, .pc_help = "quit" },
 379         { .pc_name = "quit", .pc_func = Parser_quit, .pc_help = "quit" },
 380         { .pc_help = NULL }
 381 };
 382
 383 /* all available commands */
 384 command_t cmdlist[] = {
 385         {"setstripe", lfs_setstripe, 0,
 386          "To create a file with specified striping/composite layout, or\n"
 387          "create/replace the default layout on an existing directory:\n"
 388          SSM_CMD_COMMON("setstripe")
 389          "                 [--mode <mode>]\n"
 390          "                 <directory|filename>\n"
 391          " or\n"
 392          "To add component(s) to an existing composite file:\n"
 393          SSM_CMD_COMMON("setstripe --component-add")
 394          SSM_HELP_COMMON
 395          "To totally delete the default striping from an existing directory:\n"
 396          "usage: setstripe [--delete|-d] <directory>\n"
 397          " or\n"
 398          "To create a mirrored file or set s default mirror layout on a directory:\n"
 399          "usage: setstripe {--mirror-count|-N}[mirror_count] [SETSTRIPE_OPTIONS] <directory|filename>\n"
 400          " or\n"
 401          "To delete the last component(s) from an existing composite file\n"
 402          "(note that this will also delete any data in those components):\n"
 403          "usage: setstripe --component-del [--component-id|-I <comp_id>]\n"
 404          "                               [--component-flags|-F <comp_flags>]\n"
 405          "                               <filename>\n"
 406          "\tcomp_id:     Unique component ID to delete\n"
 407          "\tcomp_flags:  'init' indicating all instantiated components\n"
 408          "\t             '^init' indicating all uninstantiated components\n"
 409          "\t-I and -F cannot be specified at the same time\n"
 410          "To create a file with a foreign (free format) layout:\n"
 411          "usage: setstripe --foreign[=<foreign_type>]\n"
 412          "                 --xattr|-x <layout_string> [--flags <hex>]\n"
 413          "                 [--mode <mode>] <filename>\n"},
 414         {"getstripe", lfs_getstripe, 0,
 415          "To list the layout pattern for a given file or files in a\n"
 416          "directory or recursively for all files in a directory tree.\n"
 417          "usage: getstripe [--ost|-O <uuid>] [--quiet|-q] [--verbose|-v]\n"
 418          "                 [--stripe-count|-c] [--stripe-index|-i] [--fid|-F]\n"
 419          "                 [--pool|-p] [--stripe-size|-S] [--directory|-d]\n"
 420          "                 [--mdt-index|-m] [--recursive|-r] [--raw|-R]\n"
 421          "                 [--layout|-L] [--generation|-g] [--yaml|-y]\n"
 422          "                 [--component-id[=comp_id]|-I[comp_id]]\n"
 423          "                 [--component-flags[=comp_flags]]\n"
 424          "                 [--component-count]\n"
 425          "                 [--extension-size|--ext-size|-z]\n"
 426          "                 [--component-start[=[+-]comp_start]]\n"
 427          "                 [--component-end[=[+-]comp_end]|-E[[+-]comp_end]]\n"
 428          "                 [[!] --mirror-index=[+-]<index> |\n"
 429          "                  [!] --mirror-id=[+-]<id>]\n"
 430          "                 <directory|filename> ..."},
 431         {"setdirstripe", lfs_setdirstripe, 0,
 432          "To create a striped directory on a specified MDT. This can only\n"
 433          "be done on MDT0 with the right of administrator.\n"
 434          "usage: setdirstripe [OPTION] <directory>\n"
 435          SETDIRSTRIPE_USAGE},
 436         {"getdirstripe", lfs_getdirstripe, 0,
 437          "To list the layout pattern info for a given directory\n"
 438          "or recursively for all directories in a directory tree.\n"
 439          "usage: getdirstripe [--mdt-count|-c] [--mdt-index|-m|-i]\n"
 440          "                    [--mdt-hash|-H] [--obd|-O <uuid>]\n"
 441          "                    [--recursive|-r] [--yaml|-y]\n"
 442          "                    [--verbose|-v] [--default|-D] <dir> ..."},
 443         {"mkdir", lfs_setdirstripe, 0,
 444          "To create a striped directory on a specified MDT. This can only\n"
 445          "be done on MDT0 with the right of administrator.\n"
 446          "usage: mkdir [OPTION] <directory>\n"
 447          SETDIRSTRIPE_USAGE},
 448         {"rm_entry", lfs_rmentry, 0,
 449          "To remove the name entry of the remote directory. Note: This\n"
 450          "command will only delete the name entry, i.e. the remote directory\n"
 451          "will become inaccessable after this command. This can only be done\n"
 452          "by the administrator\n"
 453          "usage: rm_entry <dir>\n"},
 454         {"pool_list", lfs_poollist, 0,
 455          "List pools or pool OSTs\n"
 456          "usage: pool_list <fsname>[.<pool>] | <pathname>\n"},
 457         {"find", lfs_find, 0,
 458          "find files matching given attributes recursively in directory tree.\n"
 459          "usage: find <directory|filename> ...\n"
 460          "     [[!] --atime|-A [+-]N[smhdwy]] [[!] --ctime|-C [+-]N[smhdwy]]\n"
 461          "     [[!] --mtime|-M [+-]N[smhdwy]] [[!] --blocks|-b N]\n"
 462          "     [[!] --newer[XY] <reference>]\n"
 463          "     [--maxdepth|-D N] [[!] --mdt-index|--mdt|-m <uuid|index,...>]\n"
 464          "     [[!] --name|-n <pattern>] [[!] --ost|-O <uuid|index,...>]\n"
 465          "     [--print|-P] [--print0|-0] [[!] --size|-s [+-]N[bkMGTPE]]\n"
 466          "     [[!] --stripe-count|-c [+-]<stripes>]\n"
 467          "     [[!] --stripe-index|-i <index,...>]\n"
 468          "     [[!] --stripe-size|-S [+-]N[kMGT]] [[!] --type|-t <filetype>]\n"
 469          "     [[!] --gid|-g|--group|-G <gid>|<gname>]\n"
 470          "     [[!] --uid|-u|--user|-U <uid>|<uname>] [[!] --pool <pool>]\n"
 471          "     [[!] --projid <projid>]\n"
 472          "     [[!] --foreign[=<foreign_type>]]\n"
 473          "     [[!] --layout|-L released,raid0,mdt]\n"
 474          "     [[!] --foreign[=<foreign_type>]]\n"
 475          "     [[!] --component-count [+-]<comp_cnt>]\n"
 476          "     [[!] --component-start [+-]N[kMGTPE]]\n"
 477          "     [[!] --component-end|-E [+-]N[kMGTPE]]\n"
 478          "     [[!] --component-flags {init,stale,prefer,offline,nosync,extension}]\n"
 479          "     [[!] --mirror-count|-N [+-]<n>]\n"
 480          "     [[!] --mirror-state <[^]state>]\n"
 481          "     [[!] --mdt-count|-T [+-]<stripes>]\n"
 482          "     [[!] --mdt-hash|-H <hashtype>\n"
 483          "     [[!] --mdt-index|-m <uuid|index,...>]\n"
 484          "\t !: used before an option indicates 'NOT' requested attribute\n"
 485          "\t -: used before a value indicates less than requested value\n"
 486          "\t +: used before a value indicates more than requested value\n"
 487          "\thashtype:   hash type of the striped directory.\n"
 488          "\t            fnv_1a_64 FNV-1a hash algorithm\n"
 489          "\t            all_char  sum of characters % MDT_COUNT\n"},
 490         {"check", lfs_check, 0,
 491          "Display the status of MGTs, MDTs or OSTs (as specified in the command)\n"
 492          "or all the servers (MGTs, MDTs and OSTs).\n"
 493          "usage: check <mgts|osts|mdts|all>"},
 494         {"osts", lfs_osts, 0, "list OSTs connected to client "
 495          "[for specified path only]\n" "usage: osts [path]"},
 496         {"mdts", lfs_mdts, 0, "list MDTs connected to client "
 497          "[for specified path only]\n" "usage: mdts [path]"},
 498         {"df", lfs_df, 0,
 499          "report filesystem disk space usage or inodes usage "
 500          "of each MDS and all OSDs or a batch belonging to a specific pool.\n"
 501          "Usage: df [--inodes|-i] [--human-readable|-h] [--lazy|-l]\n"
 502          "          [--pool|-p <fsname>[.<pool>]] [path]"},
 503         {"getname", lfs_getname, 0,
 504          "list instances and specified mount points [for specified path only]\n"
 505          "Usage: getname [--help|-h] [--instance|-i] [--fsname|-n] [path ...]"},
 506 #ifdef HAVE_SYS_QUOTA_H
 507         {"setquota", lfs_setquota, 0, "Set filesystem quotas.\n"
 508          "usage: setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 509          "                -b <block-softlimit> -B <block-hardlimit>\n"
 510          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 511          "       setquota <-u|--user|-g|--group|-p|--projid> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 512          "                [--block-softlimit <block-softlimit>]\n"
 513          "                [--block-hardlimit <block-hardlimit>]\n"
 514          "                [--inode-softlimit <inode-softlimit>]\n"
 515          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 516          "       setquota [-t] <-u|--user|-g|--group|-p|--projid>\n"
 517          "                [--block-grace 'notify'|<block-grace>]\n"
 518          "                [--inode-grace 'notify'|<inode-grace>] <filesystem>\n"
 519          "       setquota <-U|-G|-P>\n"
 520          "                -b <block-softlimit> -B <block-hardlimit>\n"
 521          "                -i <inode-softlimit> -I <inode-hardlimit> <filesystem>\n"
 522          "       setquota <-U|--default-usr|-G|--default-grp|-P|--default-prj>\n"
 523          "                [--block-softlimit <block-softlimit>]\n"
 524          "                [--block-hardlimit <block-hardlimit>]\n"
 525          "                [--inode-softlimit <inode-softlimit>]\n"
 526          "                [--inode-hardlimit <inode-hardlimit>] <filesystem>\n"
 527          "       setquota <-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>\n"
 528          "                <-d|--default>\n"
 529          "       -b can be used instead of --block-softlimit/--block-grace\n"
 530          "       -B can be used instead of --block-hardlimit\n"
 531          "       -i can be used instead of --inode-softlimit/--inode-grace\n"
 532          "       -I can be used instead of --inode-hardlimit\n"
 533          "       -d can be used instead of --default\n\n"
 534          "Note: The total quota space will be split into many qunits and\n"
 535          "      balanced over all server targets, the minimal qunit size is\n"
 536          "      1M bytes for block space and 1K inodes for inode space.\n\n"
 537          "      The maximum quota grace time is 2^48 - 1 seconds.\n\n"
 538          "      Quota space rebalancing process will stop when this mininum\n"
 539          "      value is reached. As a result, quota exceeded can be returned\n"
 540          "      while many targets still have 1MB or 1K inodes of spare\n"
 541          "      quota space.\n\n"
 542          "      When setting the grace time, 'notify' can be used as grace to\n"
 543          "      be notified after the quota is over soft limit but prevents\n"
 544          "      the soft limit from becoming the hard limit."},
 545         {"quota", lfs_quota, 0, "Display disk usage and limits.\n"
 546          "usage: quota [-q] [-v] [-h] [-o <obd_uuid>|-i <mdt_idx>|-I "
 547                        "<ost_idx>]\n"
 548          "             [<-u|-g|-p> <uname>|<uid>|<gname>|<gid>|<projid>] <filesystem>\n"
 549          "       quota [-o <obd_uuid>|-i <mdt_idx>|-I <ost_idx>] -t <-u|-g|-p> <filesystem>\n"
 550         "        quota [-q] [-v] [h] <-U|-G|-P> <filesystem>"},
 551         {"project", lfs_project, 0,
 552          "Change or list project attribute for specified file or directory.\n"
 553          "usage: project [-d|-r] <file|directory...>\n"
 554          "         list project ID and flags on file(s) or directories\n"
 555          "       project [-p id] [-s] [-r] <file|directory...>\n"
 556          "         set project ID and/or inherit flag for specified file(s) or directories\n"
 557          "       project -c [-d|-r [-p id] [-0]] <file|directory...>\n"
 558          "         check project ID and flags on file(s) or directories, print outliers\n"
 559          "       project -C [-r] [-k] <file|directory...>\n"
 560          "         clear the project inherit flag and ID on the file or directory\n"
 561         },
 562 #endif
 563         {"flushctx", lfs_flushctx, 0, "Flush security context for current user.\n"
 564          "usage: flushctx [-k] [mountpoint...]"},
 565         {"changelog", lfs_changelog, 0,
 566          "Show the metadata changes on an MDT."
 567          "\nusage: changelog <mdtname> [startrec [endrec]]"},
 568         {"changelog_clear", lfs_changelog_clear, 0,
 569          "Indicate that old changelog records up to <endrec> are no longer of "
 570          "interest to consumer <id>, allowing the system to free up space.\n"
 571          "An <endrec> of 0 means all records.\n"
 572          "usage: changelog_clear <mdtname> <id> <endrec>"},
 573         {"fid2path", lfs_fid2path, 0,
 574          "Resolve the full path(s) for given FID(s). For a specific hardlink "
 575          "specify link number <linkno>.\n"
 576          "usage: fid2path [-c] [--link|-l <linkno>] <fsname|root> <fid> ..."},
 577         {"path2fid", lfs_path2fid, 0, "Display the fid(s) for a given path(s).\n"
 578          "usage: path2fid [--parents] <path> ..."},
 579         {"rmfid", lfs_rmfid, 0, "Remove file(s) by FID(s)\n"
 580          "usage: rmfid <fsname|rootpath> <fid> ..."},
 581         {"data_version", lfs_data_version, 0, "Display file data version for "
 582          "a given path.\n" "usage: data_version [-n|-r|-w] <path>"},
 583         {"hsm_state", lfs_hsm_state, 0, "Display the HSM information (states, "
 584          "undergoing actions) for given files.\n usage: hsm_state <file> ..."},
 585         {"hsm_set", lfs_hsm_set, 0, "Set HSM user flag on specified files.\n"
 586          "usage: hsm_set [--norelease] [--noarchive] [--dirty] [--exists] "
 587          "[--archived] [--lost] [--archive-id NUM] <file> ..."},
 588         {"hsm_clear", lfs_hsm_clear, 0, "Clear HSM user flag on specified "
 589          "files.\n"
 590          "usage: hsm_clear [--norelease] [--noarchive] [--dirty] [--exists] "
 591          "[--archived] [--lost] <file> ..."},
 592         {"hsm_action", lfs_hsm_action, 0, "Display current HSM request for "
 593          "given files.\n" "usage: hsm_action <file> ..."},
 594         {"hsm_archive", lfs_hsm_archive, 0,
 595          "Archive file to external storage.\n"
 596          "usage: hsm_archive [--filelist FILELIST] [--data DATA] [--archive NUM] "
 597          "<file> ..."},
 598         {"hsm_restore", lfs_hsm_restore, 0,
 599          "Restore file from external storage.\n"
 600          "usage: hsm_restore [--filelist FILELIST] [--data DATA] <file> ..."},
 601         {"hsm_release", lfs_hsm_release, 0,
 602          "Release files from Lustre.\n"
 603          "usage: hsm_release [--filelist FILELIST] [--data DATA] <file> ..."},
 604         {"hsm_remove", lfs_hsm_remove, 0,
 605          "Remove file copy from external storage.\n"
 606          "usage: hsm_remove [--filelist FILELIST] [--data DATA] "
 607          "[--archive NUM]\n"
 608          "                  (FILE [FILE ...] | "
 609          "--mntpath MOUNTPATH FID [FID ...])\n"
 610          "\n"
 611          "Note: To remove an archived copy of a file already deleted from a "
 612          "Lustre FS, the\n"
 613          "--mntpath option and a list of FIDs must be specified"
 614         },
 615         {"hsm_cancel", lfs_hsm_cancel, 0,
 616          "Cancel requests related to specified files.\n"
 617          "usage: hsm_cancel [--filelist FILELIST] [--data DATA] <file> ..."},
 618         {"swap_layouts", lfs_swap_layouts, 0, "Swap layouts between 2 files.\n"
 619          "usage: swap_layouts <path1> <path2>"},
 620         {"migrate", lfs_setstripe_migrate, 0,
 621          "migrate a directory between MDTs.\n"
 622          "usage: migrate [--mdt-count|-c] <stripe_count>\n"
 623          "               [--mdt-hash|-H] <hash_type>\n"
 624          "               [--mdt-index|-m] <start_mdt_index>\n"
 625          "               [--verbose|-v]\n"
 626          "               <directory>\n"
 627          "\tmdt:        MDTs to stripe over, if only one MDT is specified\n"
 628          "                      it's the MDT index of first stripe\n"
 629          "\tmdt_count:  number of MDTs to stripe a directory over\n"
 630          "\tmdt_hash:   hash type of the striped directory. mdt types:\n"
 631          "                      fnv_1a_64 FNV-1a hash algorithm (default)\n"
 632          "                      all_char  sum of characters % MDT_COUNT\n"
 633          "\n"
 634          "migrate file objects from one OST "
 635          "layout\nto another (may be not safe with concurent writes).\n"
 636          "usage: migrate  "
 637          "[--stripe-count|-c] <stripe_count>\n"
 638          "[--overstripe-count|-C] <stripe_count>\n"
 639          "              [--stripe-index|-i] <start_ost_index>\n"
 640          "              [--stripe-size|-S] <stripe_size>\n"
 641          "              [--pool|-p] <pool_name>\n"
 642          "              [--ost|-o] <ost_indices>\n"
 643          "              [--block|-b]\n"
 644          "              [--non-block|-n]\n"
 645          "              [--non-direct|-D]\n"
 646          "              <file|directory>\n"
 647          "\tstripe_count:     number of OSTs to stripe a file over\n"
 648          "\t              Using -C instead of -c allows overstriping, which\n"
 649          "\t              will place more than one stripe per OST if\n"
 650          "\t              stripe_count is greater than the number of OSTs\n"
 651          "\tstripe_ost_index: index of the first OST to stripe a file over\n"
 652          "\tstripe_size:      number of bytes to store before moving to the next OST\n"
 653          "\tpool_name:        name of the predefined pool of OSTs\n"
 654          "\tost_indices:      OSTs to stripe over, in order\n"
 655          "\tblock:        Block file access during data migration (default)\n"
 656          "\tnon-block:    Abort migrations if concurrent access is detected\n"
 657          "\tnon-direct:       do not use direct I/O to copy file contents.\n"},
 658         {"mv", lfs_mv, 0,
 659          "To move directories between MDTs. This command is deprecated, "
 660          "use \"migrate\" instead.\n"
 661          "usage: mv <directory|filename> [--mdt-index|-m] <mdt_index> "
 662          "[--verbose|-v]\n"},
 663         {"ladvise", lfs_ladvise, 0,
 664          "Provide servers with advice about access patterns for a file.\n"
 665          "usage: ladvise [--advice|-a ADVICE] [--start|-s START[kMGT]]\n"
 666          "               [--background|-b] [--unset|-u]\n\n"
 667          "               {[--end|-e END[kMGT]] | [--length|-l LENGTH[kMGT]]}\n"
 668          "               {[--mode|-m [READ,WRITE]}\n"
 669          "               <file> ...\n"},
 670         {"mirror", lfs_mirror, mirror_cmdlist,
 671          "lfs commands used to manage files with mirrored components:\n"
 672          "lfs mirror create - create a mirrored file or directory\n"
 673          "lfs mirror extend - add mirror(s) to an existing file\n"
 674          "lfs mirror split  - split a mirror from an existing mirrored file\n"
 675          "lfs mirror resync - resynchronize out-of-sync mirrored file(s)\n"
 676          "lfs mirror read   - read a mirror content of a mirrored file\n"
 677          "lfs mirror write  - write to a mirror of a mirrored file\n"
 678          "lfs mirror copy   - copy a mirror to other mirror(s) of a file\n"
 679          "lfs mirror verify - verify mirrored file(s)\n"},
 680         {"getsom", lfs_getsom, 0, "To list the SOM info for a given file.\n"
 681          "usage: getsom [-s] [-b] [-f] <path>\n"
 682          "\t-s: Only show the size value of the SOM data for a given file\n"
 683          "\t-b: Only show the blocks value of the SOM data for a given file\n"
 684          "\t-f: Only show the flags value of the SOM data for a given file\n"},
 685         {"heat_get", lfs_heat_get, 0,
 686          "To get heat of files.\n"
 687          "usage: heat_get <file> ...\n"},
 688         {"heat_set", lfs_heat_set, 0,
 689          "To set heat flags of files.\n"
 690          "usage: heat_set [--clear|-c] [--off|-o] [--on|-O] <file> ...\n"
 691          "\t--clear|-c: Clear file heat for given files\n"
 692          "\t--off|-o:   Turn off file heat for given files\n"
 693          "\t--on|-O:    Turn on file heat for given files\n"},
 694         {"pcc", lfs_pcc, pcc_cmdlist,
 695          "lfs commands used to interact with PCC features:\n"
 696          "lfs pcc attach - attach given files to Persistent Client Cache\n"
 697          "lfs pcc attach_fid - attach given files into PCC by FID(s)\n"
 698          "lfs pcc state  - display the PCC state for given files\n"
 699          "lfs pcc detach - detach given files from Persistent Client Cache\n"
 700          "lfs pcc detach_fid - detach given files from PCC by FID(s)\n"},
 701         {"help", Parser_help, 0, "help"},
 702         {"exit", Parser_quit, 0, "quit"},
 703         {"quit", Parser_quit, 0, "quit"},
 704         {"--version", Parser_version, 0,
 705          "output build version of the utility and exit"},
 706         {"--list-commands", lfs_list_commands, 0,
 707          "list commands supported by the utility and exit"},
 708         { 0, 0, 0, NULL }
 709 };
 710
 711
 712 static int check_hashtype(const char *hashtype)
 713 {
 714         int i;
 715
 716         for (i = LMV_HASH_TYPE_ALL_CHARS; i < LMV_HASH_TYPE_MAX; i++)
 717                 if (strcmp(hashtype, mdt_hash_name[i]) == 0)
 718                         return i;
 719
 720         return 0;
 721 }
 722
 723 static uint32_t check_foreign_type_name(const char *foreign_type_name)
 724 {
 725         uint32_t i;
 726
 727         for (i = 0; i < LU_FOREIGN_TYPE_UNKNOWN; i++) {
 728                 if (lu_foreign_types[i].lft_name == NULL)
 729                         break;
 730                 if (strcmp(foreign_type_name,
 731                            lu_foreign_types[i].lft_name) == 0)
 732                         return lu_foreign_types[i].lft_type;
 733         }
 734
 735         return LU_FOREIGN_TYPE_UNKNOWN;
 736 }
 737
 738 static const char *error_loc = "syserror";
 739
 740 enum {
 741         MIGRATION_NONBLOCK      = 0x0001,
 742         MIGRATION_MIRROR        = 0x0002,
 743         MIGRATION_NONDIRECT     = 0x0004,
 744         MIGRATION_VERBOSE       = 0x0008,
 745 };
 746
 747 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
 748                                 struct llapi_layout *layout);
 749
 750 static int
 751 migrate_open_files(const char *name, __u64 migration_flags,
 752                    const struct llapi_stripe_param *param,
 753                    struct llapi_layout *layout, int *fd_src, int *fd_tgt)
 754 {
 755         int                      fd = -1;
 756         int                      fdv = -1;
 757         int                      rflags;
 758         int                      mdt_index;
 759         int                      random_value;
 760         char                     parent[PATH_MAX];
 761         char                     volatile_file[PATH_MAX];
 762         char                    *ptr;
 763         int                      rc;
 764         struct stat              st;
 765         struct stat              stv;
 766
 767         if (param == NULL && layout == NULL) {
 768                 error_loc = "layout information";
 769                 return -EINVAL;
 770         }
 771
 772         /* search for file directory pathname */
 773         if (strlen(name) > sizeof(parent) - 1) {
 774                 error_loc = "source file name";
 775                 return -ERANGE;
 776         }
 777
 778         strncpy(parent, name, sizeof(parent));
 779         ptr = strrchr(parent, '/');
 780         if (ptr == NULL) {
 781                 if (getcwd(parent, sizeof(parent)) == NULL) {
 782                         error_loc = "getcwd";
 783                         return -errno;
 784                 }
 785         } else {
 786                 if (ptr == parent) /* leading '/' */
 787                         ptr = parent + 1;
 788                 *ptr = '\0';
 789         }
 790
 791         /* open file, direct io */
 792         /* even if the file is only read, WR mode is nedeed to allow
 793          * layout swap on fd */
 794         rflags = O_RDWR;
 795         if (!(migration_flags & MIGRATION_NONDIRECT))
 796                 rflags |= O_DIRECT;
 797         fd = open(name, rflags);
 798         if (fd < 0) {
 799                 rc = -errno;
 800                 error_loc = "cannot open source file";
 801                 return rc;
 802         }
 803
 804         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
 805         if (rc < 0) {
 806                 error_loc = "cannot get MDT index";
 807                 goto out;
 808         }
 809
 810         do {
 811                 int open_flags = O_WRONLY | O_CREAT | O_EXCL | O_NOFOLLOW;
 812                 mode_t open_mode = S_IRUSR | S_IWUSR;
 813
 814                 random_value = random();
 815                 rc = snprintf(volatile_file, sizeof(volatile_file),
 816                               "%s/%s:%.4X:%.4X", parent, LUSTRE_VOLATILE_HDR,
 817                               mdt_index, random_value);
 818                 if (rc >= sizeof(volatile_file)) {
 819                         rc = -ENAMETOOLONG;
 820                         break;
 821                 }
 822
 823                 /* create, open a volatile file, use caching (ie no directio) */
 824                 if (param != NULL)
 825                         fdv = llapi_file_open_param(volatile_file, open_flags,
 826                                                     open_mode, param);
 827                 else
 828                         fdv = lfs_component_create(volatile_file, open_flags,
 829                                                    open_mode, layout);
 830         } while (fdv < 0 && (rc = fdv) == -EEXIST);
 831
 832         if (rc < 0) {
 833                 error_loc = "cannot create volatile file";
 834                 goto out;
 835         }
 836
 837         /* In case the MDT does not support creation of volatile files
 838          * we should try to unlink it. */
 839         (void)unlink(volatile_file);
 840
 841         /* Not-owner (root?) special case.
 842          * Need to set owner/group of volatile file like original.
 843          * This will allow to pass related check during layout_swap.
 844          */
 845         rc = fstat(fd, &st);
 846         if (rc != 0) {
 847                 rc = -errno;
 848                 error_loc = "cannot stat source file";
 849                 goto out;
 850         }
 851
 852         rc = fstat(fdv, &stv);
 853         if (rc != 0) {
 854                 rc = -errno;
 855                 error_loc = "cannot stat volatile";
 856                 goto out;
 857         }
 858
 859         if (st.st_uid != stv.st_uid || st.st_gid != stv.st_gid) {
 860                 rc = fchown(fdv, st.st_uid, st.st_gid);
 861                 if (rc != 0) {
 862                         rc = -errno;
 863                         error_loc = "cannot change ownwership of volatile";
 864                         goto out;
 865                 }
 866         }
 867
 868 out:
 869         if (rc < 0) {
 870                 if (fd > 0)
 871                         close(fd);
 872                 if (fdv > 0)
 873                         close(fdv);
 874         } else {
 875                 *fd_src = fd;
 876                 *fd_tgt = fdv;
 877                 error_loc = NULL;
 878         }
 879         return rc;
 880 }
 881
 882 static int migrate_copy_data(int fd_src, int fd_dst, int (*check_file)(int))
 883 {
 884         struct llapi_layout *layout;
 885         size_t   buf_size = 4 * 1024 * 1024;
 886         void    *buf = NULL;
 887         ssize_t  rsize = -1;
 888         ssize_t  wsize = 0;
 889         size_t   rpos = 0;
 890         size_t   wpos = 0;
 891         off_t    bufoff = 0;
 892         int      rc;
 893
 894         layout = llapi_layout_get_by_fd(fd_src, 0);
 895         if (layout != NULL) {
 896                 uint64_t stripe_size;
 897
 898                 rc = llapi_layout_stripe_size_get(layout, &stripe_size);
 899                 if (rc == 0)
 900                         buf_size = stripe_size;
 901
 902                 llapi_layout_free(layout);
 903         }
 904
 905         /* Use a page-aligned buffer for direct I/O */
 906         rc = posix_memalign(&buf, getpagesize(), buf_size);
 907         if (rc != 0)
 908                 return -rc;
 909
 910         while (1) {
 911                 /* read new data only if we have written all
 912                  * previously read data */
 913                 if (wpos == rpos) {
 914                         if (check_file) {
 915                                 rc = check_file(fd_src);
 916                                 if (rc < 0)
 917                                         break;
 918                         }
 919
 920                         rsize = read(fd_src, buf, buf_size);
 921                         if (rsize < 0) {
 922                                 rc = -errno;
 923                                 break;
 924                         }
 925                         rpos += rsize;
 926                         bufoff = 0;
 927                 }
 928                 /* eof ? */
 929                 if (rsize == 0)
 930                         break;
 931
 932                 wsize = write(fd_dst, buf + bufoff, rpos - wpos);
 933                 if (wsize < 0) {
 934                         rc = -errno;
 935                         break;
 936                 }
 937                 wpos += wsize;
 938                 bufoff += wsize;
 939         }
 940
 941         if (rc == 0) {
 942                 rc = fsync(fd_dst);
 943                 if (rc < 0)
 944                         rc = -errno;
 945         }
 946
 947         free(buf);
 948         return rc;
 949 }
 950
 951 static int migrate_copy_timestamps(int fd, int fdv)
 952 {
 953         struct stat st;
 954
 955         if (fstat(fd, &st) == 0) {
 956                 struct timeval tv[2] = {
 957                         {.tv_sec = st.st_atime},
 958                         {.tv_sec = st.st_mtime}
 959                 };
 960
 961                 return futimes(fdv, tv);
 962         }
 963
 964         return -errno;
 965 }
 966
 967 static int migrate_block(int fd, int fdv)
 968 {
 969         __u64   dv1;
 970         int     gid;
 971         int     rc;
 972         int     rc2;
 973
 974         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
 975         if (rc < 0) {
 976                 error_loc = "cannot get dataversion";
 977                 return rc;
 978         }
 979
 980         do
 981                 gid = random();
 982         while (gid == 0);
 983
 984         /* The grouplock blocks all concurrent accesses to the file.
 985          * It has to be taken after llapi_get_data_version as it would
 986          * block it too. */
 987         rc = llapi_group_lock(fd, gid);
 988         if (rc < 0) {
 989                 error_loc = "cannot get group lock";
 990                 return rc;
 991         }
 992
 993         rc = migrate_copy_data(fd, fdv, NULL);
 994         if (rc < 0) {
 995                 error_loc = "data copy failed";
 996                 goto out_unlock;
 997         }
 998
 999         /* Make sure we keep original atime/mtime values */
1000         rc = migrate_copy_timestamps(fd, fdv);
1001         if (rc < 0) {
1002                 error_loc = "timestamp copy failed";
1003                 goto out_unlock;
1004         }
1005
1006         /* swap layouts
1007          * for a migration we need to check data version on file did
1008          * not change.
1009          *
1010          * Pass in gid=0 since we already own grouplock. */
1011         rc = llapi_fswap_layouts_grouplock(fd, fdv, dv1, 0, 0,
1012                                            SWAP_LAYOUTS_CHECK_DV1);
1013         if (rc == -EAGAIN) {
1014                 error_loc = "file changed";
1015                 goto out_unlock;
1016         } else if (rc < 0) {
1017                 error_loc = "cannot swap layout";
1018                 goto out_unlock;
1019         }
1020
1021 out_unlock:
1022         rc2 = llapi_group_unlock(fd, gid);
1023         if (rc2 < 0 && rc == 0) {
1024                 error_loc = "unlock group lock";
1025                 rc = rc2;
1026         }
1027
1028         return rc;
1029 }
1030
1031 /**
1032  * Internal helper for migrate_copy_data(). Check lease and report error if
1033  * need be.
1034  *
1035  * \param[in]  fd           File descriptor on which to check the lease.
1036  *
1037  * \retval 0       Migration can keep on going.
1038  * \retval -errno  Error occurred, abort migration.
1039  */
1040 static int check_lease(int fd)
1041 {
1042         int rc;
1043
1044         rc = llapi_lease_check(fd);
1045         if (rc > 0)
1046                 return 0; /* llapi_check_lease returns > 0 on success. */
1047
1048         return -EBUSY;
1049 }
1050
1051 static int migrate_nonblock(int fd, int fdv)
1052 {
1053         __u64   dv1;
1054         __u64   dv2;
1055         int     rc;
1056
1057         rc = llapi_get_data_version(fd, &dv1, LL_DV_RD_FLUSH);
1058         if (rc < 0) {
1059                 error_loc = "cannot get data version";
1060                 return rc;
1061         }
1062
1063         rc = migrate_copy_data(fd, fdv, check_lease);
1064         if (rc < 0) {
1065                 error_loc = "data copy failed";
1066                 return rc;
1067         }
1068
1069         rc = llapi_get_data_version(fd, &dv2, LL_DV_RD_FLUSH);
1070         if (rc != 0) {
1071                 error_loc = "cannot get data version";
1072                 return rc;
1073         }
1074
1075         if (dv1 != dv2) {
1076                 rc = -EAGAIN;
1077                 error_loc = "source file changed";
1078                 return rc;
1079         }
1080
1081         /* Make sure we keep original atime/mtime values */
1082         rc = migrate_copy_timestamps(fd, fdv);
1083         if (rc < 0) {
1084                 error_loc = "timestamp copy failed";
1085                 return rc;
1086         }
1087
1088         return 0;
1089 }
1090
1091 static int lfs_component_set(char *fname, int comp_id,
1092                              __u32 flags, __u32 neg_flags)
1093 {
1094         __u32 ids[2];
1095         __u32 flags_array[2];
1096         size_t count = 0;
1097         int rc;
1098
1099         if (flags) {
1100                 ids[count] = comp_id;
1101                 flags_array[count] = flags;
1102                 ++count;
1103         }
1104
1105         if (neg_flags) {
1106                 if (neg_flags & LCME_FL_STALE) {
1107                         fprintf(stderr, "%s: cannot clear 'stale' flags from "
1108                                 "component. Please use lfs-mirror-resync(1) "
1109                                 "instead\n", progname);
1110                         return -EINVAL;
1111                 }
1112
1113                 ids[count] = comp_id;
1114                 flags_array[count] = neg_flags | LCME_FL_NEG;
1115                 ++count;
1116         }
1117
1118         rc = llapi_layout_file_comp_set(fname, ids, flags_array, count);
1119         if (rc) {
1120                 if (errno == EUCLEAN) {
1121                         rc = -errno;
1122                         fprintf(stderr,
1123                                 "%s: cannot set 'stale' flag on component '%#x' of the last non-stale mirror of '%s'\n",
1124                                 progname, comp_id, fname);
1125                 } else {
1126                         fprintf(stderr,
1127                                 "%s: cannot change the flags of component '%#x' of file '%s': %x / ^(%x)\n",
1128                                 progname, comp_id, fname, flags, neg_flags);
1129                 }
1130         }
1131
1132         return rc;
1133 }
1134
1135 static int lfs_component_del(char *fname, __u32 comp_id,
1136                              __u32 flags, __u32 neg_flags)
1137 {
1138         int     rc = 0;
1139
1140         if (flags && neg_flags)
1141                 return -EINVAL;
1142
1143         if (!flags && neg_flags)
1144                 flags = neg_flags | LCME_FL_NEG;
1145
1146         if ((flags && comp_id) || (!flags && !comp_id))
1147                 return -EINVAL;
1148
1149         if (flags) {
1150                 if (flags & ~LCME_KNOWN_FLAGS) {
1151                         fprintf(stderr,
1152                                 "%s setstripe: unknown flags %#x\n",
1153                                 progname, flags);
1154                         return -EINVAL;
1155                 }
1156         } else if (comp_id > LCME_ID_MAX) {
1157                 fprintf(stderr, "%s setstripe: invalid component id %u\n",
1158                         progname, comp_id);
1159                 return -EINVAL;
1160         }
1161
1162         rc = llapi_layout_file_comp_del(fname, comp_id, flags);
1163         if (rc)
1164                 fprintf(stderr,
1165                         "%s setstripe: cannot delete component %#x from '%s': %s\n",
1166                         progname, comp_id, fname, strerror(errno));
1167         return rc;
1168 }
1169
1170 static int lfs_component_add(char *fname, struct llapi_layout *layout)
1171 {
1172         int     rc;
1173
1174         if (layout == NULL)
1175                 return -EINVAL;
1176
1177         rc = llapi_layout_file_comp_add(fname, layout);
1178         if (rc)
1179                 fprintf(stderr, "Add layout component(s) to %s failed. %s\n",
1180                         fname, strerror(errno));
1181         return rc;
1182 }
1183
1184 static int lfs_component_create(char *fname, int open_flags, mode_t open_mode,
1185                                 struct llapi_layout *layout)
1186 {
1187         struct stat     st;
1188         int     fd;
1189
1190         if (layout == NULL)
1191                 return -EINVAL;
1192
1193         fd = lstat(fname, &st);
1194         if (fd == 0 && S_ISDIR(st.st_mode))
1195                 open_flags = O_DIRECTORY | O_RDONLY;
1196
1197         fd = llapi_layout_file_open(fname, open_flags, open_mode, layout);
1198         if (fd < 0)
1199                 fprintf(stderr, "%s: cannot %s '%s': %s\n", progname,
1200                         S_ISDIR(st.st_mode) ?
1201                                 "set default composite layout for" :
1202                                 "create composite file",
1203                         fname, strerror(errno));
1204         return fd;
1205 }
1206
1207 static int lfs_migrate(char *name, __u64 migration_flags,
1208                        struct llapi_stripe_param *param,
1209                        struct llapi_layout *layout)
1210 {
1211         struct llapi_layout *existing;
1212         uint64_t dom_new, dom_cur;
1213         int fd = -1;
1214         int fdv = -1;
1215         int rc;
1216
1217         rc = migrate_open_files(name, migration_flags, param, layout,
1218                                 &fd, &fdv);
1219         if (rc < 0)
1220                 goto out;
1221
1222         rc = llapi_layout_dom_size(layout, &dom_new);
1223         if (rc) {
1224                 error_loc = "cannot get new layout DoM size";
1225                 goto out;
1226         }
1227         /* special case for migration to DOM layout*/
1228         existing = llapi_layout_get_by_fd(fd, 0);
1229         if (!existing) {
1230                 error_loc = "cannot get existing layout";
1231                 goto out;
1232         }
1233
1234         rc = llapi_layout_dom_size(existing, &dom_cur);
1235         if (rc) {
1236                 error_loc = "cannot get current layout DoM size";
1237                 goto out;
1238         }
1239
1240         /* if file has DoM layout already then migration is possible to
1241          * the new layout with the same DoM component via swap layout,
1242          * if new layout used bigger DOM size, then mirroring is used
1243          */
1244         if (dom_new > dom_cur) {
1245                 rc = lfs_migrate_to_dom(fd, fdv, name, migration_flags, param,
1246                                         layout);
1247                 if (rc)
1248                         error_loc = "cannot migrate to DOM layout";
1249                 goto out_closed;
1250         }
1251
1252         if (!(migration_flags & MIGRATION_NONBLOCK)) {
1253                 /* Blocking mode (forced if servers do not support file lease).
1254                  * It is also the default mode, since we cannot distinguish
1255                  * between a broken lease and a server that does not support
1256                  * atomic swap/close (LU-6785) */
1257                 rc = migrate_block(fd, fdv);
1258                 goto out;
1259         }
1260
1261         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1262         if (rc < 0) {
1263                 error_loc = "cannot get lease";
1264                 goto out;
1265         }
1266
1267         rc = migrate_nonblock(fd, fdv);
1268         if (rc < 0) {
1269                 llapi_lease_release(fd);
1270                 goto out;
1271         }
1272
1273         /* Atomically put lease, swap layouts and close.
1274          * for a migration we need to check data version on file did
1275          * not change. */
1276         rc = llapi_fswap_layouts(fd, fdv, 0, 0, SWAP_LAYOUTS_CLOSE);
1277         if (rc < 0) {
1278                 error_loc = "cannot swap layout";
1279                 goto out;
1280         }
1281
1282 out:
1283         if (fd >= 0)
1284                 close(fd);
1285
1286         if (fdv >= 0)
1287                 close(fdv);
1288 out_closed:
1289         if (rc < 0)
1290                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1291                         progname, name, error_loc, strerror(-rc));
1292         else if (migration_flags & MIGRATION_VERBOSE)
1293                 printf("%s\n", name);
1294
1295         return rc;
1296 }
1297
1298 static int comp_str2flags(char *string, __u32 *flags, __u32 *neg_flags)
1299 {
1300         char *name;
1301
1302         if (string == NULL)
1303                 return -EINVAL;
1304
1305         *flags = 0;
1306         *neg_flags = 0;
1307         for (name = strtok(string, ","); name; name = strtok(NULL, ",")) {
1308                 bool found = false;
1309                 int i;
1310
1311                 for (i = 0; i < ARRAY_SIZE(comp_flags_table); i++) {
1312                         __u32 comp_flag = comp_flags_table[i].cfn_flag;
1313                         const char *comp_name = comp_flags_table[i].cfn_name;
1314
1315                         if (strcmp(name, comp_name) == 0) {
1316                                 *flags |= comp_flag;
1317                                 found = true;
1318                         } else if (strncmp(name, "^", 1) == 0 &&
1319                                    strcmp(name + 1, comp_name) == 0) {
1320                                 *neg_flags |= comp_flag;
1321                                 found = true;
1322                         }
1323                 }
1324                 if (!found) {
1325                         llapi_printf(LLAPI_MSG_ERROR,
1326                                      "%s: component flag '%s' not supported\n",
1327                                      progname, name);
1328                         return -EINVAL;
1329                 }
1330         }
1331
1332         if (!*flags && !*neg_flags)
1333                 return -EINVAL;
1334
1335         /* don't allow to set and exclude the same flag */
1336         if (*flags & *neg_flags)
1337                 return -EINVAL;
1338
1339         return 0;
1340 }
1341
1342 static int mirror_str2state(char *string, __u16 *state, __u16 *neg_state)
1343 {
1344         if (string == NULL)
1345                 return -EINVAL;
1346
1347         *state = 0;
1348         *neg_state = 0;
1349
1350         if (strncmp(string, "^", 1) == 0) {
1351                 *neg_state = llapi_layout_string_flags(string + 1);
1352                 if (*neg_state != 0)
1353                         return 0;
1354         } else {
1355                 *state = llapi_layout_string_flags(string);
1356                 if (*state != 0)
1357                         return 0;
1358         }
1359
1360         llapi_printf(LLAPI_MSG_ERROR,
1361                      "%s: mirrored file state '%s' not supported\n",
1362                      progname, string);
1363         return -EINVAL;
1364 }
1365
1366 /**
1367  * struct mirror_args - Command-line arguments for mirror(s).
1368  * @m_count:  Number of mirrors to be created with this layout.
1369  * @m_flags:  Mirror level flags, only 'prefer' is supported.
1370  * @m_layout: Mirror layout.
1371  * @m_file:   A victim file. Its layout will be split and used as a mirror.
1372  * @m_next:   Point to the next node of the list.
1373  *
1374  * Command-line arguments for mirror(s) will be parsed and stored in
1375  * a linked list that consists of this structure.
1376  */
1377 struct mirror_args {
1378         __u32                   m_count;
1379         __u32                   m_flags;
1380         struct llapi_layout     *m_layout;
1381         const char              *m_file;
1382         struct mirror_args      *m_next;
1383 };
1384
1385 /**
1386  * enum mirror_flags - Flags for extending a mirrored file.
1387  * @MF_NO_VERIFY: Indicates not to verify the mirror(s) from victim file(s)
1388  *             in case the victim file(s) contains the same data as the
1389  *             original mirrored file.
1390  * @MF_DESTROY: Indicates to delete the mirror from the mirrored file.
1391  * @MF_COMP_ID: specified component id instead of mirror id
1392  *
1393  * Flags for extending a mirrored file.
1394  */
1395 enum mirror_flags {
1396         MF_NO_VERIFY    = 0x1,
1397         MF_DESTROY      = 0x2,
1398         MF_COMP_ID      = 0x4,
1399         MF_COMP_POOL    = 0x8,
1400 };
1401
1402 /**
1403  * mirror_create_sanity_check() - Check mirror list.
1404  * @list:  A linked list that stores the mirror arguments.
1405  *
1406  * This function does a sanity check on @list for creating
1407  * a mirrored file.
1408  *
1409  * Return: 0 on success or a negative error code on failure.
1410  */
1411 static int mirror_create_sanity_check(const char *fname,
1412                                       struct mirror_args *list)
1413 {
1414         int rc = 0;
1415         bool has_m_file = false;
1416         bool has_m_layout = false;
1417
1418         if (list == NULL)
1419                 return -EINVAL;
1420
1421         if (fname) {
1422                 struct llapi_layout *layout;
1423
1424                 layout = llapi_layout_get_by_path(fname, 0);
1425                 if (!layout) {
1426                         fprintf(stderr,
1427                                 "error: %s: file '%s' couldn't get layout\n",
1428                                 progname, fname);
1429                         return -ENODATA;
1430                 }
1431
1432                 rc = llapi_layout_sanity(layout, false, true);
1433
1434                 llapi_layout_free(layout);
1435
1436                 if (rc) {
1437                         llapi_layout_sanity_perror(rc);
1438                         return rc;
1439                 }
1440         }
1441
1442         while (list != NULL) {
1443                 if (list->m_file != NULL) {
1444                         has_m_file = true;
1445                         llapi_layout_free(list->m_layout);
1446
1447                         list->m_layout =
1448                                 llapi_layout_get_by_path(list->m_file, 0);
1449                         if (list->m_layout == NULL) {
1450                                 fprintf(stderr,
1451                                         "error: %s: file '%s' has no layout\n",
1452                                         progname, list->m_file);
1453                                 return -ENODATA;
1454                         }
1455                 } else {
1456                         has_m_layout = true;
1457                         if (list->m_layout == NULL) {
1458                                 fprintf(stderr, "error: %s: no mirror layout\n",
1459                                         progname);
1460                                 return -EINVAL;
1461                         }
1462                 }
1463
1464                 rc = llapi_layout_sanity(list->m_layout, false, true);
1465                 if (rc) {
1466                         llapi_layout_sanity_perror(rc);
1467                         return rc;
1468                 }
1469
1470                 list = list->m_next;
1471         }
1472
1473         if (has_m_file && has_m_layout) {
1474                 fprintf(stderr,
1475                         "error: %s: -f <victim_file> option should not be specified with setstripe options\n",
1476                         progname);
1477                 return -EINVAL;
1478         }
1479
1480         return 0;
1481 }
1482
1483 static int mirror_set_flags(struct llapi_layout *layout, void *cbdata)
1484 {
1485         __u32 mirror_flags = *(__u32 *)cbdata;
1486         uint32_t flags;
1487         int rc;
1488
1489         rc = llapi_layout_comp_flags_get(layout, &flags);
1490         if (rc < 0)
1491                 return rc;
1492
1493         if (!flags) {
1494                 rc = llapi_layout_comp_flags_set(layout, mirror_flags);
1495                 if (rc)
1496                         return rc;
1497         }
1498
1499         return LLAPI_LAYOUT_ITER_CONT;
1500 }
1501
1502 /**
1503  * mirror_create() - Create a mirrored file.
1504  * @fname:        The file to be created.
1505  * @mirror_list:  A linked list that stores the mirror arguments.
1506  *
1507  * This function creates a mirrored file @fname with the mirror(s)
1508  * from @mirror_list.
1509  *
1510  * Return: 0 on success or a negative error code on failure.
1511  */
1512 static int mirror_create(char *fname, struct mirror_args *mirror_list)
1513 {
1514         struct llapi_layout *layout = NULL;
1515         struct mirror_args *cur_mirror = NULL;
1516         uint16_t mirror_count = 0;
1517         int i = 0;
1518         int rc = 0;
1519
1520         rc = mirror_create_sanity_check(NULL, mirror_list);
1521         if (rc)
1522                 return rc;
1523
1524         cur_mirror = mirror_list;
1525         while (cur_mirror != NULL) {
1526                 rc = llapi_layout_comp_iterate(cur_mirror->m_layout,
1527                                                mirror_set_flags,
1528                                                &cur_mirror->m_flags);
1529                 if (rc) {
1530                         rc = -errno;
1531                         fprintf(stderr, "%s: failed to set mirror flags\n",
1532                                 progname);
1533                         goto error;
1534                 }
1535
1536                 for (i = 0; i < cur_mirror->m_count; i++) {
1537                         rc = llapi_layout_merge(&layout, cur_mirror->m_layout);
1538                         if (rc) {
1539                                 rc = -errno;
1540                                 fprintf(stderr, "error: %s: "
1541                                         "merge layout failed: %s\n",
1542                                         progname, strerror(errno));
1543                                 goto error;
1544                         }
1545                 }
1546                 mirror_count += cur_mirror->m_count;
1547                 cur_mirror = cur_mirror->m_next;
1548         }
1549
1550         if (layout == NULL) {
1551                 fprintf(stderr, "error: %s: layout is NULL\n", progname);
1552                 return -EINVAL;
1553         }
1554
1555         rc = llapi_layout_mirror_count_set(layout, mirror_count);
1556         if (rc) {
1557                 rc = -errno;
1558                 fprintf(stderr, "error: %s: set mirror count failed: %s\n",
1559                         progname, strerror(errno));
1560                 goto error;
1561         }
1562
1563         rc = lfs_component_create(fname, O_CREAT | O_WRONLY, 0666,
1564                                   layout);
1565         if (rc >= 0) {
1566                 close(rc);
1567                 rc = 0;
1568         }
1569
1570 error:
1571         llapi_layout_free(layout);
1572         return rc;
1573 }
1574
1575 /**
1576  * Compare files and check lease on @fd.
1577  *
1578  * \retval bytes number of bytes are the same
1579  */
1580 static ssize_t mirror_file_compare(int fd, int fdv)
1581 {
1582         const size_t buflen = 4 * 1024 * 1024; /* 4M */
1583         void *buf;
1584         ssize_t bytes_done = 0;
1585         ssize_t bytes_read = 0;
1586
1587         buf = malloc(buflen * 2);
1588         if (!buf)
1589                 return -ENOMEM;
1590
1591         while (1) {
1592                 if (!llapi_lease_check(fd)) {
1593                         bytes_done = -EBUSY;
1594                         break;
1595                 }
1596
1597                 bytes_read = read(fd, buf, buflen);
1598                 if (bytes_read <= 0)
1599                         break;
1600
1601                 if (bytes_read != read(fdv, buf + buflen, buflen))
1602                         break;
1603
1604                 /* XXX: should compute the checksum on each buffer and then
1605                  * compare checksum to avoid cache collision */
1606                 if (memcmp(buf, buf + buflen, bytes_read))
1607                         break;
1608
1609                 bytes_done += bytes_read;
1610         }
1611
1612         free(buf);
1613
1614         return bytes_done;
1615 }
1616
1617 static int mirror_extend_file(const char *fname, const char *victim_file,
1618                               enum mirror_flags mirror_flags)
1619 {
1620         int fd = -1;
1621         int fdv = -1;
1622         struct stat stbuf;
1623         struct stat stbuf_v;
1624         struct ll_ioc_lease *data = NULL;
1625         int rc;
1626
1627         fd = open(fname, O_RDWR);
1628         if (fd < 0) {
1629                 error_loc = "open source file";
1630                 rc = -errno;
1631                 goto out;
1632         }
1633
1634         fdv = open(victim_file, O_RDWR);
1635         if (fdv < 0) {
1636                 error_loc = "open target file";
1637                 rc = -errno;
1638                 goto out;
1639         }
1640
1641         if (fstat(fd, &stbuf) || fstat(fdv, &stbuf_v)) {
1642                 error_loc = "stat source or target file";
1643                 rc = -errno;
1644                 goto out;
1645         }
1646
1647         if (stbuf.st_dev != stbuf_v.st_dev) {
1648                 error_loc = "stat source and target file";
1649                 rc = -EXDEV;
1650                 goto out;
1651         }
1652
1653         /* mirrors should be of the same size */
1654         if (stbuf.st_size != stbuf_v.st_size) {
1655                 error_loc = "file sizes don't match";
1656                 rc = -EINVAL;
1657                 goto out;
1658         }
1659
1660         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1661         if (rc < 0) {
1662                 error_loc = "cannot get lease";
1663                 goto out;
1664         }
1665
1666         if (!(mirror_flags & MF_NO_VERIFY)) {
1667                 ssize_t ret;
1668                 /* mirrors should have the same contents */
1669                 ret = mirror_file_compare(fd, fdv);
1670                 if (ret != stbuf.st_size) {
1671                         error_loc = "file busy or contents don't match";
1672                         rc = ret < 0 ? ret : -EINVAL;
1673                         goto out;
1674                 }
1675         }
1676
1677         /* Get rid of caching pages from clients */
1678         rc = llapi_file_flush(fd);
1679         if (rc < 0) {
1680                 error_loc = "cannot get data version";
1681                 goto out;
1682         }
1683
1684         rc = llapi_file_flush(fdv);
1685         if (rc < 0) {
1686                 error_loc = "cannot get data version";
1687                 goto out;
1688
1689         }
1690
1691         /* Make sure we keep original atime/mtime values */
1692         rc = migrate_copy_timestamps(fd, fdv);
1693         if (rc < 0) {
1694                 error_loc = "cannot copy timestamp";
1695                 goto out;
1696         }
1697
1698         /* Atomically put lease, merge layouts and close. */
1699         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1700         if (!data) {
1701                 error_loc = "memory allocation";
1702                 goto out;
1703         }
1704         data->lil_mode = LL_LEASE_UNLCK;
1705         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1706         data->lil_count = 1;
1707         data->lil_ids[0] = fdv;
1708         rc = llapi_lease_set(fd, data);
1709         if (rc < 0) {
1710                 error_loc = "cannot merge layout";
1711                 goto out;
1712         } else if (rc == 0) {
1713                 rc = -EBUSY;
1714                 error_loc = "lost lease lock";
1715                 goto out;
1716         }
1717         rc = 0;
1718
1719 out:
1720         if (data)
1721                 free(data);
1722         if (fd >= 0)
1723                 close(fd);
1724         if (fdv >= 0)
1725                 close(fdv);
1726         if (!rc)
1727                 (void) unlink(victim_file);
1728         if (rc < 0)
1729                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1730                         progname, fname, error_loc, strerror(-rc));
1731         return rc;
1732 }
1733
1734 static int mirror_extend_layout(char *name, struct llapi_layout *layout)
1735 {
1736         struct ll_ioc_lease *data = NULL;
1737         int fd = -1;
1738         int fdv = -1;
1739         int rc;
1740
1741         rc = migrate_open_files(name, 0, NULL, layout, &fd, &fdv);
1742         if (rc < 0)
1743                 goto out;
1744
1745         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
1746         if (rc < 0) {
1747                 error_loc = "cannot get lease";
1748                 goto out;
1749         }
1750
1751         rc = migrate_nonblock(fd, fdv);
1752         if (rc < 0) {
1753                 llapi_lease_release(fd);
1754                 goto out;
1755         }
1756
1757         /* Atomically put lease, merge layouts and close. */
1758         data = calloc(1, offsetof(typeof(*data), lil_ids[1]));
1759         if (!data) {
1760                 error_loc = "memory allocation";
1761                 goto out;
1762         }
1763         data->lil_mode = LL_LEASE_UNLCK;
1764         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
1765         data->lil_count = 1;
1766         data->lil_ids[0] = fdv;
1767         rc = llapi_lease_set(fd, data);
1768         if (rc < 0) {
1769                 error_loc = "cannot merge layout";
1770                 goto out;
1771         } else if (rc == 0) {
1772                 rc = -EBUSY;
1773                 error_loc = "lost lease lock";
1774                 goto out;
1775         }
1776         rc = 0;
1777
1778 out:
1779         if (data)
1780                 free(data);
1781         if (fd >= 0)
1782                 close(fd);
1783         if (fdv >= 0)
1784                 close(fdv);
1785         if (rc < 0)
1786                 fprintf(stderr, "error: %s: %s: %s: %s\n",
1787                         progname, name, error_loc, strerror(-rc));
1788         return rc;
1789 }
1790
1791 static int mirror_extend(char *fname, struct mirror_args *mirror_list,
1792                          enum mirror_flags mirror_flags)
1793 {
1794         int rc;
1795
1796         rc = mirror_create_sanity_check(fname, mirror_list);
1797         if (rc)
1798                 return rc;
1799
1800         while (mirror_list) {
1801                 if (mirror_list->m_file != NULL) {
1802                         rc = mirror_extend_file(fname, mirror_list->m_file,
1803                                                 mirror_flags);
1804                 } else {
1805                         __u32 mirror_count = mirror_list->m_count;
1806
1807                         while (mirror_count > 0) {
1808                                 rc = mirror_extend_layout(fname,
1809                                                         mirror_list->m_layout);
1810                                 if (rc)
1811                                         break;
1812
1813                                 --mirror_count;
1814                         }
1815                 }
1816                 if (rc)
1817                         break;
1818
1819                 mirror_list = mirror_list->m_next;
1820         }
1821
1822         return rc;
1823 }
1824
1825 static int find_mirror_id(struct llapi_layout *layout, void *cbdata)
1826 {
1827         uint32_t id;
1828         int rc;
1829
1830         rc = llapi_layout_mirror_id_get(layout, &id);
1831         if (rc < 0)
1832                 return rc;
1833
1834         if ((__u16)id == *(__u16 *)cbdata)
1835                 return LLAPI_LAYOUT_ITER_STOP;
1836
1837         return LLAPI_LAYOUT_ITER_CONT;
1838 }
1839
1840 static int find_comp_id(struct llapi_layout *layout, void *cbdata)
1841 {
1842         uint32_t id;
1843         int rc;
1844
1845         rc = llapi_layout_comp_id_get(layout, &id);
1846         if (rc < 0)
1847                 return rc;
1848
1849         if (id == *(__u32 *)cbdata)
1850                 return LLAPI_LAYOUT_ITER_STOP;
1851
1852         return LLAPI_LAYOUT_ITER_CONT;
1853 }
1854
1855 struct pool_to_id_cbdata {
1856         const char *pool;
1857         __u32 id;
1858 };
1859 static int find_comp_id_by_pool(struct llapi_layout *layout, void *cbdata)
1860 {
1861         char buf[LOV_MAXPOOLNAME + 1];
1862         struct pool_to_id_cbdata *d = (void *)cbdata;
1863         uint32_t id;
1864         int rc;
1865
1866         rc = llapi_layout_pool_name_get(layout, buf, sizeof(buf));
1867         if (rc < 0)
1868                 return rc;
1869         if (strcmp(d->pool, buf))
1870                 return LLAPI_LAYOUT_ITER_CONT;
1871
1872         rc = llapi_layout_mirror_id_get(layout, &id);
1873         if (rc < 0)
1874                 return rc;
1875         d->id = id;
1876
1877         return LLAPI_LAYOUT_ITER_STOP;
1878 }
1879
1880 struct collect_ids_data {
1881         __u16   *cid_ids;
1882         int     cid_count;
1883         __u16   cid_exclude;
1884 };
1885
1886 static int collect_mirror_id(struct llapi_layout *layout, void *cbdata)
1887 {
1888         struct collect_ids_data *cid = cbdata;
1889         uint32_t id;
1890         int rc;
1891
1892         rc = llapi_layout_mirror_id_get(layout, &id);
1893         if (rc < 0)
1894                 return rc;
1895
1896         if ((__u16)id != cid->cid_exclude) {
1897                 int i;
1898
1899                 for (i = 0; i < cid->cid_count; i++) {
1900                         /* already collected the mirror id */
1901                         if (id == cid->cid_ids[i])
1902                                 return LLAPI_LAYOUT_ITER_CONT;
1903                 }
1904                 cid->cid_ids[cid->cid_count] = id;
1905                 cid->cid_count++;
1906         }
1907
1908         return LLAPI_LAYOUT_ITER_CONT;
1909 }
1910
1911 /**
1912  * last_non_stale_mirror() - Check if a mirror is the last non-stale mirror.
1913  * @mirror_id: Mirror id to be checked.
1914  * @layout:    Mirror component list.
1915  *
1916  * This function checks if a mirror with specified @mirror_id is the last
1917  * non-stale mirror of a layout @layout.
1918  *
1919  * Return: true or false.
1920  */
1921 static inline
1922 bool last_non_stale_mirror(__u16 mirror_id, struct llapi_layout *layout)
1923 {
1924         __u16 mirror_ids[128] = { 0 };
1925         struct collect_ids_data cid = { .cid_ids = mirror_ids,
1926                                         .cid_count = 0,
1927                                         .cid_exclude = mirror_id, };
1928         int i;
1929
1930         llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
1931
1932         for (i = 0; i < cid.cid_count; i++) {
1933                 struct llapi_resync_comp comp_array[1024] = { { 0 } };
1934                 int comp_size = 0;
1935
1936                 comp_size = llapi_mirror_find_stale(layout, comp_array,
1937                                                     ARRAY_SIZE(comp_array),
1938                                                     &mirror_ids[i], 1);
1939                 if (comp_size == 0)
1940                         return false;
1941         }
1942
1943         return true;
1944 }
1945
1946 static int mirror_split(const char *fname, __u32 id, const char *pool,
1947                         enum mirror_flags mflags, const char *victim_file)
1948 {
1949         struct llapi_layout *layout;
1950         char parent[PATH_MAX];
1951         char victim[PATH_MAX];
1952         int flags = O_CREAT | O_EXCL | O_LOV_DELAY_CREATE | O_NOFOLLOW;
1953         char *ptr;
1954         struct ll_ioc_lease *data;
1955         uint16_t mirror_count;
1956         int mdt_index;
1957         int fd, fdv;
1958         int rc;
1959
1960         /* check fname contains mirror with mirror_id/comp_id */
1961         layout = llapi_layout_get_by_path(fname, 0);
1962         if (!layout) {
1963                 fprintf(stderr,
1964                         "error %s: file '%s' couldn't get layout\n",
1965                         progname, fname);
1966                 return -EINVAL;
1967         }
1968
1969         rc = llapi_layout_sanity(layout, false, true);
1970         if (rc) {
1971                 llapi_layout_sanity_perror(rc);
1972                 goto free_layout;
1973         }
1974
1975         rc = llapi_layout_mirror_count_get(layout, &mirror_count);
1976         if (rc) {
1977                 fprintf(stderr,
1978                         "error %s: file '%s' couldn't get mirror count\n",
1979                         progname, fname);
1980                 goto free_layout;
1981         }
1982         if (mirror_count < 2) {
1983                 fprintf(stderr,
1984                         "error %s: file '%s' has %d component, cannot split\n",
1985                         progname, fname, mirror_count);
1986                 goto free_layout;
1987         }
1988
1989         if (mflags & MF_COMP_POOL) {
1990                 struct pool_to_id_cbdata data = { .pool = pool };
1991
1992                 rc = llapi_layout_comp_iterate(layout, find_comp_id_by_pool,
1993                                                &data);
1994                 id = data.id;
1995         } else if (mflags & MF_COMP_ID) {
1996                 rc = llapi_layout_comp_iterate(layout, find_comp_id, &id);
1997                 id = mirror_id_of(id);
1998         } else {
1999                 rc = llapi_layout_comp_iterate(layout, find_mirror_id, &id);
2000         }
2001         if (rc < 0) {
2002                 fprintf(stderr, "error %s: failed to iterate layout of '%s'\n",
2003                         progname, fname);
2004                 goto free_layout;
2005         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
2006                 fprintf(stderr,
2007                      "error %s: file '%s' does not contain mirror with id %u\n",
2008                         progname, fname, id);
2009                 goto free_layout;
2010         }
2011
2012         fd = open(fname, O_RDWR);
2013         if (fd < 0) {
2014                 fprintf(stderr,
2015                         "error %s: open file '%s' failed: %s\n",
2016                         progname, fname, strerror(errno));
2017                 goto free_layout;
2018         }
2019
2020         /* get victim file directory pathname */
2021         if (strlen(fname) > sizeof(parent) - 1) {
2022                 fprintf(stderr, "error %s: file name of '%s' too long\n",
2023                         progname, fname);
2024                 rc = -ERANGE;
2025                 goto close_fd;
2026         }
2027         strncpy(parent, fname, sizeof(parent));
2028         ptr = strrchr(parent, '/');
2029         if (ptr == NULL) {
2030                 if (getcwd(parent, sizeof(parent)) == NULL) {
2031                         fprintf(stderr, "error %s: getcwd failed: %s\n",
2032                                 progname, strerror(errno));
2033                         rc = -errno;
2034                         goto close_fd;
2035                 }
2036         } else {
2037                 if (ptr == parent)
2038                         ptr = parent + 1;
2039                 *ptr = '\0';
2040         }
2041
2042         rc = llapi_file_fget_mdtidx(fd, &mdt_index);
2043         if (rc < 0) {
2044                 fprintf(stderr, "%s: cannot get MDT index of '%s'\n",
2045                         progname, fname);
2046                 goto close_fd;
2047         }
2048
2049         if (victim_file == NULL) {
2050                 /* use a temp file to store the splitted layout */
2051                 if (mflags & MF_DESTROY) {
2052                         if (last_non_stale_mirror(id, layout)) {
2053                                 rc = -EUCLEAN;
2054                                 fprintf(stderr,
2055                                         "%s: cannot destroy the last non-stale mirror of file '%s'\n",
2056                                         progname, fname);
2057                                 goto close_fd;
2058                         }
2059
2060                         fdv = llapi_create_volatile_idx(parent, mdt_index,
2061                                                         O_LOV_DELAY_CREATE);
2062                 } else {
2063                         snprintf(victim, sizeof(victim), "%s.mirror~%u",
2064                                  fname, id);
2065                         fdv = open(victim, flags, S_IRUSR | S_IWUSR);
2066                 }
2067         } else {
2068                 /* user specified victim file */
2069                 fdv = open(victim_file, flags, S_IRUSR | S_IWUSR);
2070         }
2071
2072         if (fdv < 0) {
2073                 fprintf(stderr,
2074                         "error %s: create victim file failed: %s\n",
2075                         progname, strerror(errno));
2076                 goto close_fd;
2077         }
2078
2079         /* get lease lock of fname */
2080         rc = llapi_lease_acquire(fd, LL_LEASE_WRLCK);
2081         if (rc < 0) {
2082                 fprintf(stderr,
2083                         "error %s: cannot get lease of file '%s': %d\n",
2084                         progname, fname, rc);
2085                 goto close_victim;
2086         }
2087
2088         /* Atomatically put lease, split layouts and close. */
2089         data = malloc(offsetof(typeof(*data), lil_ids[2]));
2090         if (!data) {
2091                 rc = -ENOMEM;
2092                 goto close_victim;
2093         }
2094
2095         data->lil_mode = LL_LEASE_UNLCK;
2096         data->lil_flags = LL_LEASE_LAYOUT_SPLIT;
2097         data->lil_count = 2;
2098         data->lil_ids[0] = fdv;
2099         data->lil_ids[1] = id;
2100         rc = llapi_lease_set(fd, data);
2101         if (rc <= 0) {
2102                 if (rc == 0) /* lost lease lock */
2103                         rc = -EBUSY;
2104                 fprintf(stderr,
2105                         "error %s: cannot split '%s': %s\n",
2106                         progname, fname, strerror(-rc));
2107         } else {
2108                 rc = 0;
2109         }
2110         free(data);
2111
2112 close_victim:
2113         close(fdv);
2114 close_fd:
2115         close(fd);
2116 free_layout:
2117         llapi_layout_free(layout);
2118         return rc;
2119 }
2120
2121 static inline
2122 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
2123                            __u16 *mirror_ids, int ids_nr);
2124
2125 static int lfs_migrate_to_dom(int fd, int fdv, char *name,
2126                               __u64 migration_flags,
2127                               struct llapi_stripe_param *param,
2128                               struct llapi_layout *layout)
2129 {
2130         struct ll_ioc_lease *data = NULL;
2131         int rc;
2132
2133         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
2134         if (rc < 0) {
2135                 error_loc = "cannot get lease";
2136                 goto out_close;
2137         }
2138
2139         /* Atomically put lease, merge layouts, resync and close. */
2140         data = calloc(1, offsetof(typeof(*data), lil_ids[1024]));
2141         if (!data) {
2142                 error_loc = "memory allocation";
2143                 goto out_close;
2144         }
2145         data->lil_mode = LL_LEASE_UNLCK;
2146         data->lil_flags = LL_LEASE_LAYOUT_MERGE;
2147         data->lil_count = 1;
2148         data->lil_ids[0] = fdv;
2149         rc = llapi_lease_set(fd, data);
2150         if (rc < 0) {
2151                 error_loc = "cannot merge layout";
2152                 goto out_close;
2153         } else if (rc == 0) {
2154                 rc = -EBUSY;
2155                 error_loc = "lost lease lock";
2156                 goto out_close;
2157         }
2158         close(fd);
2159         close(fdv);
2160
2161         rc = lfs_mirror_resync_file(name, data, NULL, 0);
2162         if (rc) {
2163                 error_loc = "cannot resync file";
2164                 goto out;
2165         }
2166
2167         /* delete first mirror now */
2168         rc = mirror_split(name, 1, NULL, MF_DESTROY, NULL);
2169         if (rc < 0)
2170                 error_loc = "cannot delete old layout";
2171         goto out;
2172
2173 out_close:
2174         close(fd);
2175         close(fdv);
2176 out:
2177         if (rc < 0)
2178                 fprintf(stderr, "error: %s: %s: %s: %s\n",
2179                         progname, name, error_loc, strerror(-rc));
2180         else if (migration_flags & MIGRATION_VERBOSE)
2181                 printf("%s\n", name);
2182         if (data)
2183                 free(data);
2184         return rc;
2185 }
2186
2187 /**
2188  * Parse a string containing an target index list into an array of integers.
2189  *
2190  * The input string contains a comma delimited list of individual
2191  * indices and ranges, for example "1,2-4,7". Add the indices into the
2192  * \a tgts array and remove duplicates.
2193  *
2194  * \param[out] tgts             array to store indices in
2195  * \param[in] size              size of \a tgts array
2196  * \param[in] offset            starting index in \a tgts
2197  * \param[in] arg               string containing OST index list
2198  * \param[in/out] overstriping  index list may contain duplicates
2199  *
2200  * \retval positive    number of indices in \a tgts
2201  * \retval -EINVAL     unable to parse \a arg
2202  */
2203 static int parse_targets(__u32 *tgts, int size, int offset, char *arg,
2204                          unsigned long long *pattern)
2205 {
2206         int rc;
2207         int nr = offset;
2208         int slots = size - offset;
2209         char *ptr = NULL;
2210         bool overstriped = false;
2211         bool end_of_loop;
2212
2213         if (arg == NULL)
2214                 return -EINVAL;
2215
2216         end_of_loop = false;
2217         while (!end_of_loop) {
2218                 int start_index = 0;
2219                 int end_index = 0;
2220                 int i;
2221                 char *endptr = NULL;
2222
2223                 rc = -EINVAL;
2224
2225                 ptr = strchrnul(arg, ',');
2226
2227                 end_of_loop = *ptr == '\0';
2228                 *ptr = '\0';
2229
2230                 start_index = strtol(arg, &endptr, 0);
2231                 if (endptr == arg) /* no data at all */
2232                         break;
2233                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
2234                         break;
2235
2236                 end_index = start_index;
2237                 if (*endptr == '-') {
2238                         end_index = strtol(endptr + 1, &endptr, 0);
2239                         if (*endptr != '\0')
2240                                 break;
2241                         if (end_index < start_index)
2242                                 break;
2243                 }
2244
2245                 for (i = start_index; i <= end_index && slots > 0; i++) {
2246                         int j;
2247
2248                         /* remove duplicate */
2249                         for (j = 0; j < offset; j++) {
2250                                 if (tgts[j] == i && pattern &&
2251                                     *pattern == LLAPI_LAYOUT_OVERSTRIPING)
2252                                         overstriped = true;
2253                                 else if (tgts[j] == i)
2254                                         return -EINVAL;
2255                         }
2256
2257                         j = offset;
2258
2259                         if (j == offset) { /* check complete */
2260                                 tgts[nr++] = i;
2261                                 --slots;
2262                         }
2263                 }
2264
2265                 if (slots == 0 && i < end_index)
2266                         break;
2267
2268                 *ptr = ',';
2269                 arg = ++ptr;
2270                 offset = nr;
2271                 rc = 0;
2272         }
2273         if (!end_of_loop && ptr != NULL)
2274                 *ptr = ',';
2275
2276         if (!overstriped && pattern)
2277                 *pattern = LLAPI_LAYOUT_DEFAULT;
2278
2279         return rc < 0 ? rc : nr;
2280 }
2281
2282 struct lfs_setstripe_args {
2283         unsigned long long       lsa_comp_end;
2284         unsigned long long       lsa_stripe_size;
2285         unsigned long long       lsa_extension_size;
2286         long long                lsa_stripe_count;
2287         long long                lsa_stripe_off;
2288         __u32                    lsa_comp_flags;
2289         __u32                    lsa_comp_neg_flags;
2290         unsigned long long       lsa_pattern;
2291         unsigned int             lsa_mirror_count;
2292         int                      lsa_nr_tgts;
2293         bool                     lsa_first_comp;
2294         bool                     lsa_extension_comp;
2295         __u32                   *lsa_tgts;
2296         char                    *lsa_pool_name;
2297 };
2298
2299 static inline void setstripe_args_init(struct lfs_setstripe_args *lsa)
2300 {
2301         unsigned int mirror_count = lsa->lsa_mirror_count;
2302         bool first_comp = lsa->lsa_first_comp;
2303
2304         memset(lsa, 0, sizeof(*lsa));
2305
2306         lsa->lsa_stripe_size = LLAPI_LAYOUT_DEFAULT;
2307         lsa->lsa_stripe_count = LLAPI_LAYOUT_DEFAULT;
2308         lsa->lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
2309         lsa->lsa_pattern = LLAPI_LAYOUT_RAID0;
2310         lsa->lsa_pool_name = NULL;
2311
2312         lsa->lsa_mirror_count = mirror_count;
2313         lsa->lsa_first_comp = first_comp;
2314 }
2315
2316 /**
2317  * setstripe_args_init_inherit() - Initialize and inherit stripe options.
2318  * @lsa: Stripe options to be initialized and inherited.
2319  *
2320  * This function initializes stripe options in @lsa and inherit
2321  * stripe_size, stripe_count and OST pool_name options.
2322  *
2323  * Return: void.
2324  */
2325 static inline void setstripe_args_init_inherit(struct lfs_setstripe_args *lsa)
2326 {
2327         unsigned long long stripe_size;
2328         long long stripe_count;
2329         char *pool_name = NULL;
2330
2331         stripe_size = lsa->lsa_stripe_size;
2332         stripe_count = lsa->lsa_stripe_count;
2333         pool_name = lsa->lsa_pool_name;
2334
2335         setstripe_args_init(lsa);
2336
2337         lsa->lsa_stripe_size = stripe_size;
2338         lsa->lsa_stripe_count = stripe_count;
2339         lsa->lsa_pool_name = pool_name;
2340 }
2341
2342 static inline bool setstripe_args_specified(struct lfs_setstripe_args *lsa)
2343 {
2344         return (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT ||
2345                 lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ||
2346                 lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
2347                 lsa->lsa_pattern != LLAPI_LAYOUT_RAID0 ||
2348                 lsa->lsa_comp_end != 0);
2349 }
2350
2351 /**
2352  * comp_args_to_layout() - Create or extend a composite layout.
2353  * @composite:       Pointer to the composite layout.
2354  * @lsa:             Stripe options for the new component.
2355  *
2356  * This function creates or extends a composite layout by adding a new
2357  * component with stripe options from @lsa.
2358  *
2359  * Return: 0 on success or an error code on failure.
2360  */
2361 static int comp_args_to_layout(struct llapi_layout **composite,
2362                                struct lfs_setstripe_args *lsa,
2363                                bool set_extent)
2364 {
2365         struct llapi_layout *layout = *composite;
2366         uint64_t prev_end = 0;
2367         uint64_t size;
2368         int i = 0, rc;
2369
2370 new_comp:
2371         if (layout == NULL) {
2372                 layout = llapi_layout_alloc();
2373                 if (layout == NULL) {
2374                         fprintf(stderr, "Alloc llapi_layout failed. %s\n",
2375                                 strerror(errno));
2376                         errno = ENOMEM;
2377                         return -1;
2378                 }
2379                 *composite = layout;
2380                 lsa->lsa_first_comp = true;
2381         } else {
2382                 uint64_t start;
2383
2384                 /* Get current component extent, current component
2385                  * must be the tail component. */
2386                 rc = llapi_layout_comp_extent_get(layout, &start, &prev_end);
2387                 if (rc) {
2388                         fprintf(stderr, "Get comp extent failed. %s\n",
2389                                 strerror(errno));
2390                         return rc;
2391                 }
2392
2393                 if (lsa->lsa_first_comp)
2394                         prev_end = 0;
2395
2396                 if (lsa->lsa_first_comp)
2397                         rc = llapi_layout_add_first_comp(layout);
2398                 else
2399                         rc = llapi_layout_comp_add(layout);
2400                 if (rc) {
2401                         fprintf(stderr, "Add component failed. %s\n",
2402                                 strerror(errno));
2403                         return rc;
2404                 }
2405         }
2406
2407         rc = llapi_layout_comp_flags_set(layout, lsa->lsa_comp_flags);
2408         if (rc) {
2409                 fprintf(stderr, "Set flags 0x%x failed: %s\n",
2410                         lsa->lsa_comp_flags, strerror(errno));
2411                 return rc;
2412         }
2413
2414         if (set_extent) {
2415                 uint64_t comp_end = lsa->lsa_comp_end;
2416
2417                 /* The extendable component is 0-length, so it can be removed
2418                  * if there is insufficient space to extend it. */
2419                 if (lsa->lsa_extension_comp)
2420                         comp_end = prev_end;
2421
2422                 rc = llapi_layout_comp_extent_set(layout, prev_end,
2423                                                   comp_end);
2424                 if (rc) {
2425                         fprintf(stderr, "Set extent [%lu, %lu) failed. %s\n",
2426                                 prev_end, comp_end, strerror(errno));
2427                         return rc;
2428                 }
2429         }
2430         /* reset lsa_first_comp */
2431         lsa->lsa_first_comp = false;
2432
2433         /* Data-on-MDT component setting */
2434         if (lsa->lsa_pattern == LLAPI_LAYOUT_MDT) {
2435                 /* In case of Data-on-MDT patterns the only extra option
2436                  * applicable is stripe size option. */
2437                 if (lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
2438                         fprintf(stderr, "Option 'stripe-count' can't be "
2439                                 "specified with Data-on-MDT component: %lld\n",
2440                                 lsa->lsa_stripe_count);
2441                         errno = EINVAL;
2442                         return -1;
2443                 }
2444                 if (lsa->lsa_stripe_size != LLAPI_LAYOUT_DEFAULT) {
2445                         fprintf(stderr, "Option 'stripe-size' can't be "
2446                                 "specified with Data-on-MDT component: %llu\n",
2447                                 lsa->lsa_stripe_size);
2448                         errno = EINVAL;
2449                         return -1;
2450                 }
2451                 if (lsa->lsa_nr_tgts != 0) {
2452                         fprintf(stderr, "Option 'ost-list' can't be specified "
2453                                 "with Data-on-MDT component: '%i'\n",
2454                                 lsa->lsa_nr_tgts);
2455                         errno = EINVAL;
2456                         return -1;
2457                 }
2458                 if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT) {
2459                         fprintf(stderr, "Option 'stripe-offset' can't be "
2460                                 "specified with Data-on-MDT component: %lld\n",
2461                                 lsa->lsa_stripe_off);
2462                         errno = EINVAL;
2463                         return -1;
2464                 }
2465                 if (lsa->lsa_pool_name != 0) {
2466                         fprintf(stderr, "Option 'pool' can't be specified "
2467                                 "with Data-on-MDT component: '%s'\n",
2468                                 lsa->lsa_pool_name);
2469                         errno = EINVAL;
2470                         return -1;
2471                 }
2472
2473                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2474                 if (rc) {
2475                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2476                                 lsa->lsa_pattern,
2477                                 strerror(errno));
2478                         return rc;
2479                 }
2480                 /* Data-on-MDT component has always single stripe up to end */
2481                 lsa->lsa_stripe_size = lsa->lsa_comp_end;
2482         } else if (lsa->lsa_pattern == LLAPI_LAYOUT_OVERSTRIPING) {
2483                 rc = llapi_layout_pattern_set(layout, lsa->lsa_pattern);
2484                 if (rc) {
2485                         fprintf(stderr, "Set stripe pattern %#llx failed. %s\n",
2486                                 lsa->lsa_pattern,
2487                                 strerror(errno));
2488                         return rc;
2489                 }
2490         }
2491
2492         size = lsa->lsa_comp_flags & LCME_FL_EXTENSION ?
2493                 lsa->lsa_extension_size : lsa->lsa_stripe_size;
2494
2495         if (lsa->lsa_comp_flags & LCME_FL_EXTENSION)
2496                 rc = llapi_layout_extension_size_set(layout, size);
2497         else
2498                 rc = llapi_layout_stripe_size_set(layout, size);
2499
2500         if (rc) {
2501                 fprintf(stderr, "Set stripe size %lu failed: %s\n",
2502                         size, strerror(errno));
2503                 return rc;
2504         }
2505
2506         rc = llapi_layout_stripe_count_set(layout, lsa->lsa_stripe_count);
2507         if (rc) {
2508                 fprintf(stderr, "Set stripe count %lld failed: %s\n",
2509                         lsa->lsa_stripe_count, strerror(errno));
2510                 return rc;
2511         }
2512
2513         if (lsa->lsa_pool_name != NULL) {
2514                 rc = llapi_layout_pool_name_set(layout, lsa->lsa_pool_name);
2515                 if (rc) {
2516                         fprintf(stderr, "Set pool name: %s failed. %s\n",
2517                                 lsa->lsa_pool_name, strerror(errno));
2518                         return rc;
2519                 }
2520         } else {
2521                 rc = llapi_layout_pool_name_set(layout, "");
2522                 if (rc) {
2523                         fprintf(stderr, "Clear pool name failed: %s\n",
2524                                 strerror(errno));
2525                         return rc;
2526                 }
2527         }
2528
2529         if (lsa->lsa_nr_tgts > 0) {
2530                 if (lsa->lsa_stripe_count > 0 &&
2531                     lsa->lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
2532                     lsa->lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
2533                     lsa->lsa_nr_tgts != lsa->lsa_stripe_count) {
2534                         fprintf(stderr, "stripe_count(%lld) != nr_tgts(%d)\n",
2535                                 lsa->lsa_stripe_count,
2536                                 lsa->lsa_nr_tgts);
2537                         errno = EINVAL;
2538                         return -1;
2539                 }
2540                 for (i = 0; i < lsa->lsa_nr_tgts; i++) {
2541                         rc = llapi_layout_ost_index_set(layout, i,
2542                                                         lsa->lsa_tgts[i]);
2543                         if (rc)
2544                                 break;
2545                 }
2546         } else if (lsa->lsa_stripe_off != LLAPI_LAYOUT_DEFAULT &&
2547                    lsa->lsa_stripe_off != -1) {
2548                 rc = llapi_layout_ost_index_set(layout, 0, lsa->lsa_stripe_off);
2549         }
2550         if (rc) {
2551                 fprintf(stderr, "Set ost index %d failed. %s\n",
2552                         i, strerror(errno));
2553                 return rc;
2554         }
2555
2556         /* Create the second, virtual component of extension space */
2557         if (lsa->lsa_extension_comp) {
2558                 lsa->lsa_comp_flags |= LCME_FL_EXTENSION;
2559                 lsa->lsa_extension_comp = false;
2560                 goto new_comp;
2561         }
2562
2563         return rc;
2564 }
2565
2566 static int build_component(struct llapi_layout **layout,
2567                            struct lfs_setstripe_args *lsa, bool set_extent)
2568 {
2569         int rc;
2570
2571         rc = comp_args_to_layout(layout, lsa, set_extent);
2572         if (rc)
2573                 return rc;
2574
2575         if (lsa->lsa_mirror_count > 0) {
2576                 rc = llapi_layout_mirror_count_set(*layout,
2577                                                    lsa->lsa_mirror_count);
2578                 if (rc)
2579                         return rc;
2580
2581                 rc = llapi_layout_flags_set(*layout, LCM_FL_RDONLY);
2582                 if (rc)
2583                         return rc;
2584                 lsa->lsa_mirror_count = 0;
2585         }
2586
2587         return rc;
2588 }
2589
2590 static int build_layout_from_yaml_node(struct cYAML *node,
2591                                        struct llapi_layout **layout,
2592                                        struct lfs_setstripe_args *lsa,
2593                                        __u32 *osts)
2594 {
2595         char *string;
2596         int rc = 0;
2597
2598         while (node) {
2599                 if (node->cy_type == CYAML_TYPE_OBJECT) {
2600                         /* go deep to sub blocks */
2601                         rc = build_layout_from_yaml_node(node->cy_child, layout,
2602                                                          lsa, osts);
2603                         if (rc)
2604                                 return rc;
2605                 } else {
2606                         if (node->cy_string == NULL)
2607                                 return -EINVAL;
2608
2609                         string = node->cy_string;
2610                         /* skip leading lmm_ if present, to simplify parsing */
2611                         if (strncmp(string, "lmm_", 4) == 0)
2612                                 string += 4;
2613
2614                         if (node->cy_type == CYAML_TYPE_STRING) {
2615                                 if (!strcmp(string, "lcme_extent.e_end")) {
2616                                         if (!strcmp(node->cy_valuestring, "EOF") ||
2617                                             !strcmp(node->cy_valuestring, "eof"))
2618                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2619                                 } else if (!strcmp(string, "pool")) {
2620                                         lsa->lsa_pool_name = node->cy_valuestring;
2621                                 } else if (!strcmp(string, "pattern")) {
2622                                         if (!strcmp(node->cy_valuestring, "mdt"))
2623                                                 lsa->lsa_pattern = LLAPI_LAYOUT_MDT;
2624                                         if (!strcmp(node->cy_valuestring,
2625                                                     "raid0,overstriped"))
2626                                                 lsa->lsa_pattern =
2627                                                         LLAPI_LAYOUT_OVERSTRIPING;
2628                                 } else if (!strcmp(string, "lcme_flags")) {
2629                                         rc = comp_str2flags(node->cy_valuestring,
2630                                                             &lsa->lsa_comp_flags,
2631                                                             &lsa->lsa_comp_neg_flags);
2632                                         if (rc)
2633                                                 return rc;
2634                                         /* Only template flags have meaning in
2635                                          * the layout for a new file
2636                                          */
2637                                         lsa->lsa_comp_flags &= LCME_TEMPLATE_FLAGS;
2638                                 }
2639                         } else if (node->cy_type == CYAML_TYPE_NUMBER) {
2640                                 if (!strcmp(string, "lcm_mirror_count")) {
2641                                         lsa->lsa_mirror_count = node->cy_valueint;
2642                                 } else if (!strcmp(string, "lcme_extent.e_start")) {
2643                                         if (node->cy_valueint != 0 || *layout != NULL) {
2644                                                 rc = build_component(layout, lsa, true);
2645                                                 if (rc)
2646                                                         return rc;
2647                                         }
2648
2649                                         if (node->cy_valueint == 0)
2650                                                 lsa->lsa_first_comp = true;
2651
2652                                         /* initialize lsa */
2653                                         setstripe_args_init(lsa);
2654                                         lsa->lsa_tgts = osts;
2655                                 } else if (!strcmp(string, "lcme_extent.e_end")) {
2656                                         if (node->cy_valueint == -1)
2657                                                 lsa->lsa_comp_end = LUSTRE_EOF;
2658                                         else
2659                                                 lsa->lsa_comp_end = node->cy_valueint;
2660                                 } else if (!strcmp(string, "stripe_count")) {
2661                                         lsa->lsa_stripe_count = node->cy_valueint;
2662                                 } else if (!strcmp(string, "stripe_size")) {
2663                                         lsa->lsa_stripe_size = node->cy_valueint;
2664                                 } else if (!strcmp(string, "stripe_offset")) {
2665                                         lsa->lsa_stripe_off = node->cy_valueint;
2666                                 } else if (!strcmp(string, "l_ost_idx")) {
2667                                         osts[lsa->lsa_nr_tgts] = node->cy_valueint;
2668                                         lsa->lsa_nr_tgts++;
2669                                 }
2670                         }
2671                 }
2672                 node = node->cy_next;
2673         }
2674
2675         return rc;
2676 }
2677
2678 static int lfs_comp_create_from_yaml(char *template,
2679                                      struct llapi_layout **layout,
2680                                      struct lfs_setstripe_args *lsa,
2681                                      __u32 *osts)
2682 {
2683         struct cYAML *tree = NULL, *err_rc = NULL;
2684         int rc = 0;
2685
2686         tree = cYAML_build_tree(template, NULL, 0, &err_rc, false);
2687         if (!tree) {
2688                 fprintf(stderr, "%s: cannot parse YAML file %s\n",
2689                         progname, template);
2690                 cYAML_build_error(-EINVAL, -1, "yaml", "from comp yaml",
2691                                   "can't parse", &err_rc);
2692                 cYAML_print_tree2file(stderr, err_rc);
2693                 cYAML_free_tree(err_rc);
2694                 rc = -EINVAL;
2695                 goto err;
2696         }
2697
2698         /* initialize lsa for plain file */
2699         setstripe_args_init(lsa);
2700         lsa->lsa_tgts = osts;
2701
2702         rc = build_layout_from_yaml_node(tree, layout, lsa, osts);
2703         if (rc) {
2704                 fprintf(stderr, "%s: cannot build layout from YAML file %s.\n",
2705                         progname, template);
2706                 goto err;
2707         } else {
2708                 rc = build_component(layout, lsa, *layout != NULL);
2709         }
2710         /* clean clean lsa */
2711         setstripe_args_init(lsa);
2712
2713 err:
2714         if (tree)
2715                 cYAML_free_tree(tree);
2716         return rc;
2717 }
2718
2719 /**
2720  * Get the extension size from the next (SEL) component and extend the
2721  * current component on it. The start of the next component is to be
2722  * adjusted as well.
2723  *
2724  * \param[in] layout    the current layout
2725  * \param[in] start     the start of the current component
2726  * \param[in,out] end   the end of the current component
2727  * \param[in] offset    the offset to adjust the end position to instead of
2728  *                      extension size
2729  *
2730  * \retval 0            - extended successfully
2731  * \retval < 0          - error
2732  */
2733 static int layout_extend_comp(struct llapi_layout *layout,
2734                               uint64_t start, uint64_t *end,
2735                               uint64_t offset)
2736 {
2737         uint64_t size, next_start, next_end;
2738         int rc;
2739
2740         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_NEXT);
2741         if (rc < 0) {
2742                 fprintf(stderr, "%s setstripe: cannot move component cursor: "
2743                         "%s\n", progname, strerror(errno));
2744                 return rc;
2745         }
2746
2747         /* Even if the @size will not be used below, this will fail if
2748          * this is not a SEL component - a good confirmation we are
2749          * working on right components. */
2750         rc = llapi_layout_extension_size_get(layout, &size);
2751         if (rc < 0) {
2752                 fprintf(stderr, "%s setstripe: cannot get component ext size: "
2753                         "%s\n", progname, strerror(errno));
2754                 return rc;
2755         }
2756
2757         rc = llapi_layout_comp_extent_get(layout, &next_start, &next_end);
2758         if (rc) {
2759                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2760                         progname, strerror(errno));
2761                 return rc;
2762         }
2763
2764         next_start += offset ?: size;
2765         rc = llapi_layout_comp_extent_set(layout, next_start, next_end);
2766         if (rc) {
2767                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
2768                         progname, strerror(errno));
2769                 return rc;
2770         }
2771
2772         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_PREV);
2773         if (rc < 0) {
2774                 fprintf(stderr, "%s setstripe: cannot move component cursor: "
2775                         "%s\n", progname, strerror(errno));
2776                 return rc;
2777         }
2778
2779         *end += offset ?: size;
2780         rc = llapi_layout_comp_extent_set(layout, start, *end);
2781         if (rc) {
2782                 fprintf(stderr, "%s setstripe: cannot set extent: %s\n",
2783                         progname, strerror(errno));
2784                 return rc;
2785         }
2786
2787         return 0;
2788 }
2789
2790 /**
2791  * In 'lfs setstripe --component-add' mode, we need to fetch the extent
2792  * end of the last component in the existing file, and adjust the
2793  * first extent start of the components to be added accordingly.
2794  *
2795  * In the create mode, we need to check if the first component is an extendable
2796  * SEL component and extend its length to the extension size (first component
2797  * of the PFL file is initialised at the create time, cannot be 0-lenght.
2798  */
2799 static int layout_adjust_first_extent(char *fname, struct llapi_layout *layout,
2800                                       bool comp_add)
2801 {
2802         struct llapi_layout *head;
2803         uint64_t start = 0, prev_end = 0;
2804         uint64_t end;
2805         int rc, ret = 0;
2806
2807         if (layout == NULL)
2808                 return 0;
2809
2810         errno = 0;
2811         while (comp_add) {
2812                 head = llapi_layout_get_by_path(fname, 0);
2813                 if (head == NULL) {
2814                         fprintf(stderr,
2815                                 "%s setstripe: cannot read layout from '%s': "
2816                                 "%s\n", progname, fname, strerror(errno));
2817                         return -EINVAL;
2818                 } else if (errno == ENODATA) {
2819                         /* file without LOVEA, this component-add will be turned
2820                          * into a component-create. */
2821                         llapi_layout_free(head);
2822                         ret = -ENODATA;
2823
2824                         /* the new layout will be added to an empty one, it
2825                          * still needs to be adjusted below */
2826                         comp_add = 0;
2827                         break;
2828                 } else if (!llapi_layout_is_composite(head)) {
2829                         fprintf(stderr, "%s setstripe: '%s' not a composite "
2830                                 "file\n", progname, fname);
2831                         llapi_layout_free(head);
2832                         return -EINVAL;
2833                 }
2834
2835                 rc = llapi_layout_comp_extent_get(head, &start, &prev_end);
2836                 if (rc) {
2837                         fprintf(stderr, "%s setstripe: cannot get prev "
2838                                 "extent: %s\n", progname, strerror(errno));
2839                         llapi_layout_free(head);
2840                         return rc;
2841                 }
2842
2843                 llapi_layout_free(head);
2844                 break;
2845         }
2846
2847         /* Make sure we use the first component of the layout to be added. */
2848         rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
2849         if (rc < 0) {
2850                 fprintf(stderr,
2851                         "%s setstripe: cannot move component cursor: %s\n",
2852                         progname, strerror(errno));
2853                 return rc;
2854         }
2855
2856         rc = llapi_layout_comp_extent_get(layout, &start, &end);
2857         if (rc) {
2858                 fprintf(stderr, "%s setstripe: cannot get extent: %s\n",
2859                         progname, strerror(errno));
2860                 return rc;
2861         }
2862
2863         if (start == 0 && end == 0) {
2864                 rc = layout_extend_comp(layout, start, &end,
2865                                         comp_add ? prev_end : 0);
2866                 if (rc)
2867                         return rc;
2868         }
2869
2870         if (start > prev_end || end < prev_end) {
2871                 fprintf(stderr, "%s setstripe: first extent [%lu, %lu) not "
2872                         "adjacent with extent end %lu\n",
2873                         progname, start, end, prev_end);
2874                 return -EINVAL;
2875         }
2876
2877         rc = llapi_layout_comp_extent_set(layout, prev_end, end);
2878         if (rc) {
2879                 fprintf(stderr, "%s setstripe: cannot set component extent "
2880                         "[%lu, %lu): %s\n",
2881                         progname, prev_end, end, strerror(errno));
2882                 return rc;
2883         }
2884
2885         return ret;
2886 }
2887
2888 static int mirror_adjust_first_extents(struct mirror_args *list)
2889 {
2890         int rc = 0;
2891
2892         if (list == NULL)
2893                 return 0;
2894
2895         while (list != NULL) {
2896                 rc = layout_adjust_first_extent(NULL, list->m_layout, false);
2897                 if (rc)
2898                         break;
2899                 list = list->m_next;
2900         }
2901
2902         return rc;
2903 }
2904
2905 static inline bool arg_is_eof(char *arg)
2906 {
2907         return !strncmp(arg, "-1", strlen("-1")) ||
2908                !strncmp(arg, "EOF", strlen("EOF")) ||
2909                !strncmp(arg, "eof", strlen("eof"));
2910 }
2911
2912 /**
2913  * lfs_mirror_alloc() - Allocate a mirror argument structure.
2914  *
2915  * Return: Valid mirror_args pointer on success and
2916  *         NULL if memory allocation fails.
2917  */
2918 static struct mirror_args *lfs_mirror_alloc(void)
2919 {
2920         struct mirror_args *mirror = NULL;
2921
2922         while (1) {
2923                 mirror = calloc(1, sizeof(*mirror));
2924                 if (mirror != NULL)
2925                         break;
2926
2927                 sleep(1);
2928         }
2929
2930         return mirror;
2931 }
2932
2933 /**
2934  * lfs_mirror_free() - Free memory allocated for a mirror argument
2935  *                     structure.
2936  * @mirror: Previously allocated mirror argument structure by
2937  *          lfs_mirror_alloc().
2938  *
2939  * Free memory allocated for @mirror.
2940  *
2941  * Return: void.
2942  */
2943 static void lfs_mirror_free(struct mirror_args *mirror)
2944 {
2945         if (mirror->m_layout != NULL)
2946                 llapi_layout_free(mirror->m_layout);
2947         free(mirror);
2948 }
2949
2950 /**
2951  * lfs_mirror_list_free() - Free memory allocated for a mirror list.
2952  * @mirror_list: Previously allocated mirror list.
2953  *
2954  * Free memory allocated for @mirror_list.
2955  *
2956  * Return: void.
2957  */
2958 static void lfs_mirror_list_free(struct mirror_args *mirror_list)
2959 {
2960         struct mirror_args *next_mirror = NULL;
2961
2962         while (mirror_list != NULL) {
2963                 next_mirror = mirror_list->m_next;
2964                 lfs_mirror_free(mirror_list);
2965                 mirror_list = next_mirror;
2966         }
2967 }
2968
2969 enum {
2970         LFS_POOL_OPT = 3,
2971         LFS_COMP_COUNT_OPT,
2972         LFS_COMP_START_OPT,
2973         LFS_COMP_FLAGS_OPT,
2974         LFS_COMP_DEL_OPT,
2975         LFS_COMP_SET_OPT,
2976         LFS_COMP_ADD_OPT,
2977         LFS_COMP_NO_VERIFY_OPT,
2978         LFS_PROJID_OPT,
2979         LFS_LAYOUT_FLAGS_OPT, /* used for mirror and foreign flags */
2980         LFS_MIRROR_ID_OPT,
2981         LFS_MIRROR_STATE_OPT,
2982         LFS_LAYOUT_COPY,
2983         LFS_MIRROR_INDEX_OPT,
2984         LFS_LAYOUT_FOREIGN_OPT,
2985         LFS_MODE_OPT,
2986         LFS_NEWERXY_OPT,
2987 };
2988
2989 /* functions */
2990 static int lfs_setstripe_internal(int argc, char **argv,
2991                                   enum setstripe_origin opc)
2992 {
2993         struct lfs_setstripe_args        lsa = { 0 };
2994         struct llapi_stripe_param       *param = NULL;
2995         struct find_param                migrate_mdt_param = {
2996                 .fp_max_depth = -1,
2997                 .fp_mdt_index = -1,
2998         };
2999         char                            *fname;
3000         int                              result = 0;
3001         int                              result2 = 0;
3002         char                            *end;
3003         int                              c;
3004         int                              delete = 0;
3005         unsigned long long               size_units = 1;
3006         bool                             migrate_mode = false;
3007         bool                             migrate_mdt_mode = false;
3008         bool                             setstripe_mode = false;
3009         bool                             migration_block = false;
3010         __u64                            migration_flags = 0;
3011         __u32                            tgts[LOV_MAX_STRIPE_COUNT] = { 0 };
3012         int                              comp_del = 0, comp_set = 0;
3013         int                              comp_add = 0;
3014         __u32                            comp_id = 0;
3015         struct llapi_layout             *layout = NULL;
3016         struct llapi_layout             **lpp = &layout;
3017         bool                             mirror_mode = false;
3018         bool                             has_m_file = false;
3019         __u32                            mirror_count = 0;
3020         enum mirror_flags                mirror_flags = 0;
3021         struct mirror_args              *mirror_list = NULL;
3022         struct mirror_args              *new_mirror = NULL;
3023         struct mirror_args              *last_mirror = NULL;
3024         __u16                            mirror_id = 0;
3025         char                             cmd[PATH_MAX];
3026         bool from_yaml = false;
3027         bool from_copy = false;
3028         char *template = NULL;
3029         bool foreign_mode = false;
3030         char *xattr = NULL;
3031         uint32_t type = LU_FOREIGN_TYPE_NONE, flags = 0;
3032         char *mode_opt = NULL;
3033         mode_t previous_umask = 0;
3034         mode_t mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
3035
3036         struct option long_opts[] = {
3037 /* find { .val = '0',   .name = "null",         .has_arg = no_argument }, */
3038 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
3039         /* --block is only valid in migrate mode */
3040         { .val = 'b',   .name = "block",        .has_arg = no_argument },
3041         { .val = LFS_COMP_ADD_OPT,
3042                         .name = "comp-add",     .has_arg = no_argument },
3043         { .val = LFS_COMP_ADD_OPT,
3044                         .name = "component-add", .has_arg = no_argument },
3045         { .val = LFS_COMP_DEL_OPT,
3046                         .name = "comp-del",     .has_arg = no_argument },
3047         { .val = LFS_COMP_DEL_OPT,
3048                         .name = "component-del", .has_arg = no_argument },
3049         { .val = LFS_COMP_FLAGS_OPT,
3050                         .name = "comp-flags",   .has_arg = required_argument },
3051         { .val = LFS_COMP_FLAGS_OPT,
3052                         .name = "component-flags",
3053                                                 .has_arg = required_argument },
3054         { .val = LFS_COMP_SET_OPT,
3055                         .name = "comp-set",     .has_arg = no_argument },
3056         { .val = LFS_COMP_SET_OPT,
3057                         .name = "component-set",
3058                                                 .has_arg = no_argument},
3059         { .val = LFS_COMP_NO_VERIFY_OPT,
3060                         .name = "no-verify",    .has_arg = no_argument},
3061         { .val = LFS_LAYOUT_FLAGS_OPT,
3062                         .name = "flags",        .has_arg = required_argument},
3063         { .val = LFS_LAYOUT_FOREIGN_OPT,
3064                         .name = "foreign",      .has_arg = optional_argument},
3065         { .val = LFS_MIRROR_ID_OPT,
3066                         .name = "mirror-id",    .has_arg = required_argument},
3067         { .val = LFS_MODE_OPT,
3068                         .name = "mode",         .has_arg = required_argument},
3069         { .val = LFS_LAYOUT_COPY,
3070                         .name = "copy",         .has_arg = required_argument},
3071         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument},
3072         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument},
3073         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument},
3074         { .val = 'C',   .name = "overstripe-count",
3075                                                 .has_arg = required_argument},
3076         { .val = 'd',   .name = "delete",       .has_arg = no_argument},
3077         { .val = 'd',   .name = "destroy",      .has_arg = no_argument},
3078         /* --non-direct is only valid in migrate mode */
3079         { .val = 'D',   .name = "non-direct",   .has_arg = no_argument },
3080         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument},
3081         { .val = 'E',   .name = "component-end",
3082                                                 .has_arg = required_argument},
3083         { .val = 'f',   .name = "file",         .has_arg = required_argument },
3084 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
3085 /* find { .val = 'g',   .name = "gid",          .has_arg = no_argument }, */
3086 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
3087 /* find { .val = 'h',   .name = "help",         .has_arg = no_argument }, */
3088         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument},
3089         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument},
3090         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument},
3091         { .val = 'I',   .name = "comp-id",      .has_arg = required_argument},
3092         { .val = 'I',   .name = "component-id", .has_arg = required_argument},
3093 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
3094         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
3095         { .val = 'm',   .name = "mdt",          .has_arg = required_argument},
3096         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument},
3097         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument},
3098         /* --non-block is only valid in migrate mode */
3099         { .val = 'n',   .name = "non-block",    .has_arg = no_argument },
3100         { .val = 'N',   .name = "mirror-count", .has_arg = optional_argument},
3101         { .val = 'o',   .name = "ost",          .has_arg = required_argument },
3102 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3103         { .val = 'o',   .name = "ost-list",     .has_arg = required_argument },
3104         { .val = 'o',   .name = "ost_list",     .has_arg = required_argument },
3105 #endif
3106         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
3107 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
3108 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
3109 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
3110 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
3111         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
3112         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
3113 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
3114 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
3115 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
3116 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
3117         /* --verbose is only valid in migrate mode */
3118         { .val = 'v',   .name = "verbose",      .has_arg = no_argument},
3119         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
3120         { .val = 'y',   .name = "yaml",         .has_arg = required_argument },
3121         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument},
3122         { .val = 'z',   .name = "extension-size", .has_arg = required_argument},
3123         { .name = NULL } };
3124
3125         setstripe_args_init(&lsa);
3126
3127         migrate_mode = (opc == SO_MIGRATE);
3128         mirror_mode = (opc == SO_MIRROR_CREATE || opc == SO_MIRROR_EXTEND);
3129         setstripe_mode = (opc == SO_SETSTRIPE);
3130         if (opc == SO_MIRROR_DELETE) {
3131                 delete = 1;
3132                 mirror_flags = MF_DESTROY;
3133         }
3134
3135         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
3136         progname = cmd;
3137         while ((c = getopt_long(argc, argv,
3138                                 "bc:C:dDE:f:H:i:I:m:N::no:p:L:s:S:vx:y:z:",
3139                                 long_opts, NULL)) >= 0) {
3140                 size_units = 1;
3141                 switch (c) {
3142                 case 0:
3143                         /* Long options. */
3144                         break;
3145                 case LFS_COMP_ADD_OPT:
3146                         comp_add = 1;
3147                         break;
3148                 case LFS_COMP_DEL_OPT:
3149                         comp_del = 1;
3150                         break;
3151                 case LFS_COMP_FLAGS_OPT:
3152                         result = comp_str2flags(optarg, &lsa.lsa_comp_flags,
3153                                                 &lsa.lsa_comp_neg_flags);
3154                         if (result != 0)
3155                                 goto usage_error;
3156                         if (mirror_mode && lsa.lsa_comp_neg_flags) {
3157                                 fprintf(stderr, "%s: inverted flags are not supported\n",
3158                                         progname);
3159                                 goto usage_error;
3160                         }
3161                         break;
3162                 case LFS_COMP_SET_OPT:
3163                         comp_set = 1;
3164                         break;
3165                 case LFS_COMP_NO_VERIFY_OPT:
3166                         mirror_flags |= MF_NO_VERIFY;
3167                         break;
3168                 case LFS_MIRROR_ID_OPT:
3169                         mirror_id = strtoul(optarg, &end, 0);
3170                         if (*end != '\0' || mirror_id == 0) {
3171                                 fprintf(stderr,
3172                                         "%s %s: invalid mirror ID '%s'\n",
3173                                         progname, argv[0], optarg);
3174                                 goto usage_error;
3175                         }
3176                         break;
3177                 case LFS_LAYOUT_FLAGS_OPT: {
3178                         uint32_t neg_flags;
3179
3180                         /* check for numeric flags (foreign and mirror cases) */
3181                         if (setstripe_mode && !mirror_mode && !last_mirror) {
3182                                 flags = strtoul(optarg, &end, 16);
3183                                 if (*end != '\0') {
3184                                         fprintf(stderr,
3185                                                 "%s %s: bad flags '%s'\n",
3186                                                 progname, argv[0], optarg);
3187                                         return CMD_HELP;
3188                                 }
3189                                 break;
3190                         }
3191
3192                         if (!mirror_mode || !last_mirror) {
3193                                 fprintf(stderr, "error: %s: --flags must be specified with --mirror-count|-N option\n",
3194                                         progname);
3195                                 goto usage_error;
3196                         }
3197
3198                         result = comp_str2flags(optarg, &last_mirror->m_flags,
3199                                                 &neg_flags);
3200                         if (result != 0)
3201                                 goto usage_error;
3202
3203                         if (neg_flags) {
3204                                 fprintf(stderr, "%s: inverted flags are not supported\n",
3205                                         progname);
3206                                 result = -EINVAL;
3207                                 goto usage_error;
3208                         }
3209                         if (last_mirror->m_flags & ~LCME_USER_MIRROR_FLAGS) {
3210                                 fprintf(stderr,
3211                                         "%s: unsupported mirror flags: %s\n",
3212                                         progname, optarg);
3213                                 result = -EINVAL;
3214                                 goto error;
3215                         }
3216                         break;
3217                 }
3218                 case LFS_LAYOUT_FOREIGN_OPT:
3219                         if (optarg != NULL) {
3220                                 /* check pure numeric */
3221                                 type = strtoul(optarg, &end, 0);
3222                                 if (*end) {
3223                                         /* check name */
3224                                         type = check_foreign_type_name(optarg);
3225                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
3226                                                 fprintf(stderr,
3227                                                         "%s %s: unrecognized foreign type '%s'\n",
3228                                                         progname, argv[0],
3229                                                         optarg);
3230                                                 return CMD_HELP;
3231                                         }
3232                                 }
3233                         }
3234                         foreign_mode = true;
3235                         break;
3236                 case LFS_MODE_OPT:
3237                         mode_opt = optarg;
3238                         if (mode_opt != NULL) {
3239                                 mode = strtoul(mode_opt, &end, 8);
3240                                 if (*end != '\0') {
3241                                         fprintf(stderr,
3242                                                 "%s %s: bad mode '%s'\n",
3243                                                 progname, argv[0], mode_opt);
3244                                         return CMD_HELP;
3245                                 }
3246                                 previous_umask = umask(0);
3247                         }
3248                         break;
3249                 case LFS_LAYOUT_COPY:
3250                         from_copy = true;
3251                         template = optarg;
3252                         break;
3253                 case 'b':
3254                         if (!migrate_mode) {
3255                                 fprintf(stderr,
3256                                         "%s %s: -b|--block valid only for migrate command\n",
3257                                         progname, argv[0]);
3258                                 goto usage_error;
3259                         }
3260                         migration_block = true;
3261                         break;
3262                 case 'C':
3263                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3264                                 fprintf(stderr,
3265                                         "%s %s: -C|--overstripe-count incompatible with DoM layout\n",
3266                                         progname, argv[0]);
3267                                 goto usage_error;
3268                         }
3269                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3270                         /* fall through */
3271                 case 'c':
3272                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
3273                         if (*end != '\0') {
3274                                 fprintf(stderr,
3275                                         "%s %s: invalid stripe count '%s'\n",
3276                                         progname, argv[0], optarg);
3277                                 goto usage_error;
3278                         }
3279
3280                         if (lsa.lsa_stripe_count == -1)
3281                                 lsa.lsa_stripe_count = LLAPI_LAYOUT_WIDE;
3282                         break;
3283                 case 'd':
3284                         /* delete the default striping pattern */
3285                         delete = 1;
3286                         if (opc == SO_MIRROR_SPLIT) {
3287                                 if (has_m_file) {
3288                                         fprintf(stderr,
3289                                               "%s %s: -d cannot used with -f\n",
3290                                                 progname, argv[0]);
3291                                         goto usage_error;
3292                                 }
3293                                 mirror_flags |= MF_DESTROY;
3294                         }
3295                         break;
3296                 case 'D':
3297                         if (!migrate_mode) {
3298                                 fprintf(stderr,
3299                                         "%s %s: -D|--non-direct is valid "
3300                                         "only for migrate command\n",
3301                                         progname, argv[0]);
3302                                 goto usage_error;
3303                         }
3304                         migration_flags |= MIGRATION_NONDIRECT;
3305                         break;
3306                 case 'E':
3307                         if (lsa.lsa_comp_end != 0) {
3308                                 result = comp_args_to_layout(lpp, &lsa, true);
3309                                 if (result) {
3310                                         fprintf(stderr, "%s: invalid layout\n",
3311                                                 progname);
3312                                         goto usage_error;
3313                                 }
3314
3315                                 setstripe_args_init_inherit(&lsa);
3316                         }
3317
3318                         if (arg_is_eof(optarg)) {
3319                                 lsa.lsa_comp_end = LUSTRE_EOF;
3320                         } else {
3321                                 result = llapi_parse_size(optarg,
3322                                                         &lsa.lsa_comp_end,
3323                                                         &size_units, 0);
3324                                 if (result) {
3325                                         fprintf(stderr,
3326                                                 "%s %s: invalid component end '%s'\n",
3327                                                 progname, argv[0], optarg);
3328                                         goto usage_error;
3329                                 }
3330                         }
3331                         break;
3332                 case 'H':
3333                         if (!migrate_mode) {
3334                                 fprintf(stderr, "--mdt-hash is valid only for migrate command\n");
3335                                 return CMD_HELP;
3336                         }
3337
3338                         lsa.lsa_pattern = check_hashtype(optarg);
3339                         if (lsa.lsa_pattern == 0) {
3340                                 fprintf(stderr,
3341                                         "%s %s: bad stripe hash type '%s'\n",
3342                                         progname, argv[0], optarg);
3343                                 return CMD_HELP;
3344                         }
3345                         break;
3346                 case 'i':
3347                         lsa.lsa_stripe_off = strtol(optarg, &end, 0);
3348                         if (*end != '\0') {
3349                                 fprintf(stderr,
3350                                         "%s %s: invalid stripe offset '%s'\n",
3351                                         progname, argv[0], optarg);
3352                                 goto usage_error;
3353                         }
3354                         if (lsa.lsa_stripe_off == -1)
3355                                 lsa.lsa_stripe_off = LLAPI_LAYOUT_DEFAULT;
3356                         break;
3357                 case 'I':
3358                         comp_id = strtoul(optarg, &end, 0);
3359                         if (*end != '\0' || comp_id == 0 ||
3360                             comp_id > LCME_ID_MAX) {
3361                                 fprintf(stderr,
3362                                         "%s %s: invalid component ID '%s'\n",
3363                                         progname, argv[0], optarg);
3364                                 goto usage_error;
3365                         }
3366                         break;
3367                 case 'f':
3368                         if (opc != SO_MIRROR_EXTEND && opc != SO_MIRROR_SPLIT) {
3369                                 fprintf(stderr,
3370                                         "error: %s: invalid option: %s\n",
3371                                         progname, argv[optopt + 1]);
3372                                 goto usage_error;
3373                         }
3374                         if (opc == SO_MIRROR_EXTEND) {
3375                                 if (last_mirror == NULL) {
3376                                         fprintf(stderr,
3377                                 "error: %s: '-N' must exist in front of '%s'\n",
3378                                                 progname, argv[optopt + 1]);
3379                                         goto usage_error;
3380                                 }
3381                                 last_mirror->m_file = optarg;
3382                                 last_mirror->m_count = 1;
3383                         } else {
3384                                 /* mirror split */
3385                                 if (mirror_list == NULL)
3386                                         mirror_list = lfs_mirror_alloc();
3387                                 mirror_list->m_file = optarg;
3388                         }
3389                         has_m_file = true;
3390                         break;
3391                 case 'L':
3392                         if (strcmp(argv[optind - 1], "mdt") == 0) {
3393                                 /* Can be only the first component */
3394                                 if (layout != NULL) {
3395                                         result = -EINVAL;
3396                                         fprintf(stderr, "error: 'mdt' layout "
3397                                                 "can be only the first one\n");
3398                                         goto error;
3399                                 }
3400                                 if (lsa.lsa_comp_end > (1ULL << 30)) { /* 1Gb */
3401                                         result = -EFBIG;
3402                                         fprintf(stderr, "error: 'mdt' layout "
3403                                                 "size is too big\n");
3404                                         goto error;
3405                                 }
3406                                 lsa.lsa_pattern = LLAPI_LAYOUT_MDT;
3407                         } else if (strcmp(argv[optind - 1], "raid0") != 0) {
3408                                 result = -EINVAL;
3409                                 fprintf(stderr, "error: layout '%s' is "
3410                                         "unknown, supported layouts are: "
3411                                         "'mdt', 'raid0'\n", argv[optind]);
3412                                 goto error;
3413                         }
3414                         break;
3415                 case 'm':
3416                         if (!migrate_mode) {
3417                                 fprintf(stderr,
3418                                         "%s %s: -m|--mdt-index is valid only for migrate command\n",
3419                                         progname, argv[0]);
3420                                 goto usage_error;
3421                         }
3422                         migrate_mdt_mode = true;
3423                         lsa.lsa_nr_tgts = parse_targets(tgts,
3424                                                 sizeof(tgts) / sizeof(__u32),
3425                                                 lsa.lsa_nr_tgts, optarg, NULL);
3426                         if (lsa.lsa_nr_tgts < 0) {
3427                                 fprintf(stderr,
3428                                         "%s %s: invalid MDT target(s) '%s'\n",
3429                                         progname, argv[0], optarg);
3430                                 return CMD_HELP;
3431                         }
3432
3433                         lsa.lsa_tgts = tgts;
3434                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3435                                 lsa.lsa_stripe_off = tgts[0];
3436                         break;
3437                 case 'n':
3438                         if (!migrate_mode) {
3439                                 fprintf(stderr,
3440                                         "%s %s: -n|--non-block valid only for migrate command\n",
3441                                         progname, argv[0]);
3442                                 goto usage_error;
3443                         }
3444                         migration_flags |= MIGRATION_NONBLOCK;
3445                         break;
3446                 case 'N':
3447                         if (opc == SO_SETSTRIPE) {
3448                                 opc = SO_MIRROR_CREATE;
3449                                 mirror_mode = true;
3450                         }
3451                         mirror_count = 1;
3452                         if (optarg != NULL) {
3453                                 mirror_count = strtoul(optarg, &end, 0);
3454                                 if (*end != '\0' || mirror_count == 0) {
3455                                         fprintf(stderr,
3456                                                 "error: %s: bad mirror count: %s\n",
3457                                                 progname, optarg);
3458                                         result = -EINVAL;
3459                                         goto error;
3460                                 }
3461                         }
3462
3463                         new_mirror = lfs_mirror_alloc();
3464                         new_mirror->m_count = mirror_count;
3465
3466                         if (mirror_list == NULL)
3467                                 mirror_list = new_mirror;
3468
3469                         if (last_mirror != NULL) {
3470                                 /* wrap up last mirror */
3471                                 if (lsa.lsa_comp_end == 0)
3472                                         lsa.lsa_comp_end = LUSTRE_EOF;
3473
3474                                 result = comp_args_to_layout(lpp, &lsa, true);
3475                                 if (result) {
3476                                         lfs_mirror_free(new_mirror);
3477                                         goto error;
3478                                 }
3479
3480                                 setstripe_args_init_inherit(&lsa);
3481
3482                                 last_mirror->m_next = new_mirror;
3483                         }
3484
3485                         last_mirror = new_mirror;
3486                         lpp = &last_mirror->m_layout;
3487                         break;
3488                 case 'o':
3489 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
3490                         if (strcmp(argv[optind - 1], "--ost-list") == 0)
3491                                 fprintf(stderr, "warning: '--ost-list' is "
3492                                         "deprecated, use '--ost' instead\n");
3493 #endif
3494                         if (lsa.lsa_pattern == LLAPI_LAYOUT_MDT) {
3495                                 fprintf(stderr,
3496                                         "%s %s: -o|--ost incompatible with DoM layout\n",
3497                                         progname, argv[0]);
3498                                 goto usage_error;
3499                         }
3500                         /* -o allows overstriping, and must note it because
3501                          * parse_targets is shared with MDT striping, which
3502                          * does not allow duplicates
3503                          */
3504                         lsa.lsa_pattern = LLAPI_LAYOUT_OVERSTRIPING;
3505                         lsa.lsa_nr_tgts = parse_targets(tgts,
3506                                                 sizeof(tgts) / sizeof(__u32),
3507                                                 lsa.lsa_nr_tgts, optarg,
3508                                                 &lsa.lsa_pattern);
3509                         if (lsa.lsa_nr_tgts < 0) {
3510                                 fprintf(stderr,
3511                                         "%s %s: invalid OST target(s) '%s'\n",
3512                                         progname, argv[0], optarg);
3513                                 goto usage_error;
3514                         }
3515
3516                         lsa.lsa_tgts = tgts;
3517                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3518                                 lsa.lsa_stripe_off = tgts[0];
3519                         break;
3520                 case 'p':
3521                         if (optarg == NULL)
3522                                 goto usage_error;
3523                         lsa.lsa_pool_name = optarg;
3524
3525                         if (strlen(lsa.lsa_pool_name) == 0 ||
3526                             strncmp(lsa.lsa_pool_name, "none",
3527                                     LOV_MAXPOOLNAME) == 0)
3528                                 lsa.lsa_pool_name = NULL;
3529                         break;
3530                 case 'S':
3531                         result = llapi_parse_size(optarg, &lsa.lsa_stripe_size,
3532                                                   &size_units, 0);
3533                         if (result) {
3534                                 fprintf(stderr,
3535                                         "%s %s: invalid stripe size '%s'\n",
3536                                         progname, argv[0], optarg);
3537                                 goto usage_error;
3538                         }
3539                         break;
3540                 case 'v':
3541                         if (!migrate_mode) {
3542                                 fprintf(stderr,
3543                                         "%s %s: -v|--verbose valid only for migrate command\n",
3544                                         progname, argv[0]);
3545                                 goto usage_error;
3546                         }
3547                         migrate_mdt_param.fp_verbose = VERBOSE_DETAIL;
3548                         migration_flags = MIGRATION_VERBOSE;
3549                         break;
3550                 case 'x':
3551                         xattr = optarg;
3552                         break;
3553                 case 'y':
3554                         from_yaml = true;
3555                         template = optarg;
3556                         break;
3557                 case 'z':
3558                         result = llapi_parse_size(optarg,
3559                                                   &lsa.lsa_extension_size,
3560                                                   &size_units, 0);
3561                         if (result) {
3562                                 fprintf(stderr,
3563                                         "%s %s: invalid extension size '%s'\n",
3564                                         progname, argv[0], optarg);
3565                                 goto usage_error;
3566                         }
3567
3568                         lsa.lsa_extension_comp = true;
3569                         break;
3570                 default:
3571                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
3572                                 progname, argv[0], argv[optind - 1]);
3573                         goto usage_error;
3574                 }
3575         }
3576
3577         fname = argv[optind];
3578
3579         if (optind == argc) {
3580                 fprintf(stderr, "%s %s: FILE must be specified\n",
3581                         progname, argv[0]);
3582                 goto usage_error;
3583         }
3584
3585         if (xattr && !foreign_mode) {
3586                 /* only print a warning as this is harmless and will be ignored
3587                  */
3588                 fprintf(stderr,
3589                         "%s %s: xattr has been specified for non-foreign layout\n",
3590                         progname, argv[0]);
3591         } else if (foreign_mode && !xattr) {
3592                 fprintf(stderr,
3593                         "%s %s: xattr must be provided in foreign mode\n",
3594                         progname, argv[0]);
3595                 goto usage_error;
3596         }
3597
3598         if (foreign_mode && (!setstripe_mode || comp_add | comp_del ||
3599             comp_set || comp_id || delete || from_copy ||
3600             setstripe_args_specified(&lsa) || lsa.lsa_nr_tgts ||
3601             lsa.lsa_tgts)) {
3602                 fprintf(stderr,
3603                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
3604                         progname, argv[0]);
3605                 return CMD_HELP;
3606         }
3607
3608         if (mirror_mode && mirror_count == 0) {
3609                 fprintf(stderr,
3610                         "error: %s: --mirror-count|-N option is required\n",
3611                         progname);
3612                 result = -EINVAL;
3613                 goto error;
3614         }
3615
3616         if (mirror_mode) {
3617                 if (lsa.lsa_comp_end == 0)
3618                         lsa.lsa_comp_end = LUSTRE_EOF;
3619         }
3620
3621         if (lsa.lsa_comp_end != 0) {
3622                 result = comp_args_to_layout(lpp, &lsa, true);
3623                 if (result) {
3624                         fprintf(stderr, "error: %s: invalid layout\n",
3625                                 progname);
3626                         result = -EINVAL;
3627                         goto error;
3628                 }
3629         }
3630
3631         if (mirror_flags & MF_NO_VERIFY) {
3632                 if (opc != SO_MIRROR_EXTEND) {
3633                         fprintf(stderr,
3634                                 "error: %s: --no-verify is valid only for lfs mirror extend command\n",
3635                                 progname);
3636                         result = -EINVAL;
3637                         goto error;
3638                 } else if (!has_m_file) {
3639                         fprintf(stderr,
3640                                 "error: %s: --no-verify must be specified with -f <victim_file> option\n",
3641                                 progname);
3642                         result = -EINVAL;
3643                         goto error;
3644                 }
3645         }
3646
3647         if (comp_set && !comp_id) {
3648                 fprintf(stderr, "%s %s: --component-set doesn't have component-id set\n",
3649                         progname, argv[0]);
3650                 goto usage_error;
3651         }
3652
3653         if ((delete + comp_set + comp_del + comp_add) > 1) {
3654                 fprintf(stderr,
3655                         "%s %s: options --component-set, --component-del, --component-add and -d are mutually exclusive\n",
3656                         progname, argv[0]);
3657                 goto usage_error;
3658         }
3659
3660         if (delete && (setstripe_args_specified(&lsa) || comp_id != 0 ||
3661                        lsa.lsa_comp_flags != 0 || layout != NULL)) {
3662                 fprintf(stderr,
3663                         "%s %s: option -d is mutually exclusive with -s, -c, -o, -p, -I, -F and -E options\n",
3664                         progname, argv[0]);
3665                 goto usage_error;
3666         }
3667
3668         if ((comp_set || comp_del) &&
3669             (setstripe_args_specified(&lsa) || layout != NULL)) {
3670                 fprintf(stderr,
3671                         "%s %s: options --component-del and --component-set are mutually exclusive when used with -c, -E, -o, -p, or -s\n",
3672                         progname, argv[0]);
3673                 goto usage_error;
3674         }
3675
3676         if (comp_del && comp_id != 0 && lsa.lsa_comp_flags != 0) {
3677                 fprintf(stderr,
3678                         "%s %s: options -I and -F are mutually exclusive when used with --component-del\n",
3679                         progname, argv[0]);
3680                 goto usage_error;
3681         }
3682
3683         if (comp_add || comp_del) {
3684                 struct stat st;
3685
3686                 result = lstat(fname, &st);
3687                 if (result == 0 && S_ISDIR(st.st_mode)) {
3688                         fprintf(stderr,
3689                                 "%s setstripe: cannot use --component-add or --component-del for directory\n",
3690                                 progname);
3691                         goto usage_error;
3692                 }
3693
3694                 if (mirror_mode) {
3695                         fprintf(stderr, "error: %s: can't use --component-add "
3696                                 "or --component-del for mirror operation\n",
3697                                 progname);
3698                         goto usage_error;
3699                 }
3700         }
3701
3702         if (comp_add) {
3703                 if (layout == NULL) {
3704                         fprintf(stderr,
3705                                 "%s %s: option -E must be specified with --component-add\n",
3706                                 progname, argv[0]);
3707                         goto usage_error;
3708                 }
3709         }
3710
3711         if (layout != NULL || mirror_list != NULL) {
3712                 if (mirror_list)
3713                         result = mirror_adjust_first_extents(mirror_list);
3714                 else
3715                         result = layout_adjust_first_extent(fname, layout,
3716                                                             comp_add);
3717                 if (result == -ENODATA)
3718                         comp_add = 0;
3719                 else if (result != 0) {
3720                         fprintf(stderr, "error: %s: invalid layout\n",
3721                                 progname);
3722                         goto error;
3723                 }
3724         }
3725
3726         if (from_yaml && from_copy) {
3727                 fprintf(stderr,
3728                         "%s: can't specify --yaml and --copy together\n",
3729                         progname);
3730                 goto error;
3731         }
3732
3733         if ((from_yaml || from_copy) &&
3734             (setstripe_args_specified(&lsa) || layout != NULL)) {
3735                 fprintf(stderr, "error: %s: can't specify --yaml with "
3736                         "-c, -S, -i, -o, -p or -E options.\n",
3737                         argv[0]);
3738                 goto error;
3739         }
3740
3741         if ((migration_flags & MIGRATION_NONBLOCK) && migration_block) {
3742                 fprintf(stderr,
3743                         "%s %s: options --non-block and --block are mutually exclusive\n",
3744                         progname, argv[0]);
3745                 goto usage_error;
3746         }
3747
3748         if (!comp_del && !comp_set && opc != SO_MIRROR_SPLIT &&
3749             opc != SO_MIRROR_DELETE && comp_id != 0) {
3750                 fprintf(stderr,
3751                         "%s: option -I can only be used with --component-del or --component-set or lfs mirror split\n",
3752                         progname);
3753                 goto usage_error;
3754         }
3755
3756         if (migrate_mdt_mode) {
3757                 struct lmv_user_md *lmu;
3758
3759                 /* initialize migrate mdt parameters */
3760                 lmu = calloc(1, lmv_user_md_size(lsa.lsa_nr_tgts,
3761                                                  LMV_USER_MAGIC_SPECIFIC));
3762                 if (!lmu) {
3763                         fprintf(stderr,
3764                                 "%s %s: cannot allocate memory for lmv_user_md: %s\n",
3765                                 progname, argv[0], strerror(ENOMEM));
3766                         result = -ENOMEM;
3767                         goto error;
3768                 }
3769                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
3770                         lmu->lum_stripe_count = lsa.lsa_stripe_count;
3771                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT) {
3772                         fprintf(stderr,
3773                                 "%s %s: migrate should specify MDT index\n",
3774                                 progname, argv[0]);
3775                         free(lmu);
3776                         goto usage_error;
3777                 }
3778                 lmu->lum_stripe_offset = lsa.lsa_stripe_off;
3779                 if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
3780                         lmu->lum_hash_type = lsa.lsa_pattern;
3781                 else
3782                         lmu->lum_hash_type = LMV_HASH_TYPE_DEFAULT;
3783                 if (lsa.lsa_pool_name) {
3784                         strncpy(lmu->lum_pool_name, lsa.lsa_pool_name,
3785                                 sizeof(lmu->lum_pool_name) - 1);
3786                         lmu->lum_pool_name[sizeof(lmu->lum_pool_name) - 1] = 0;
3787                 }
3788                 if (lsa.lsa_nr_tgts > 1) {
3789                         int i;
3790
3791                         if (lsa.lsa_stripe_count > 0 &&
3792                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3793                             lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
3794                                 fprintf(stderr,
3795                                         "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
3796                                         progname, lsa.lsa_stripe_count,
3797                                         lsa.lsa_nr_tgts);
3798                                 free(lmu);
3799                                 goto usage_error;
3800                         }
3801
3802                         lmu->lum_magic = LMV_USER_MAGIC_SPECIFIC;
3803                         lmu->lum_stripe_count = lsa.lsa_nr_tgts;
3804                         for (i = 0; i < lsa.lsa_nr_tgts; i++)
3805                                 lmu->lum_objects[i].lum_mds = lsa.lsa_tgts[i];
3806                 } else {
3807                         lmu->lum_magic = LMV_USER_MAGIC;
3808                 }
3809
3810                 migrate_mdt_param.fp_lmv_md = lmu;
3811                 migrate_mdt_param.fp_migrate = 1;
3812         } else if (layout == NULL) {
3813                 /* initialize stripe parameters */
3814                 param = calloc(1, offsetof(typeof(*param),
3815                                lsp_osts[lsa.lsa_nr_tgts]));
3816                 if (param == NULL) {
3817                         fprintf(stderr,
3818                                 "%s %s: cannot allocate memory for parameters: %s\n",
3819                                 progname, argv[0], strerror(ENOMEM));
3820                         result = -ENOMEM;
3821                         goto error;
3822                 }
3823
3824                 if (lsa.lsa_stripe_size != LLAPI_LAYOUT_DEFAULT)
3825                         param->lsp_stripe_size = lsa.lsa_stripe_size;
3826                 if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT) {
3827                         if (lsa.lsa_stripe_count == LLAPI_LAYOUT_WIDE)
3828                                 param->lsp_stripe_count = -1;
3829                         else
3830                                 param->lsp_stripe_count = lsa.lsa_stripe_count;
3831                 }
3832                 if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
3833                         param->lsp_stripe_offset = -1;
3834                 else
3835                         param->lsp_stripe_offset = lsa.lsa_stripe_off;
3836                 param->lsp_stripe_pattern =
3837                                 llapi_pattern_to_lov(lsa.lsa_pattern);
3838                 if (param->lsp_stripe_pattern == EINVAL) {
3839                         fprintf(stderr, "error: %s: invalid stripe pattern\n",
3840                                 argv[0]);
3841                         free(param);
3842                         goto usage_error;
3843                 }
3844                 param->lsp_pool = lsa.lsa_pool_name;
3845                 param->lsp_is_specific = false;
3846                 if (lsa.lsa_nr_tgts > 0) {
3847                         if (lsa.lsa_stripe_count > 0 &&
3848                             lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
3849                             lsa.lsa_stripe_count != LLAPI_LAYOUT_WIDE &&
3850                             lsa.lsa_nr_tgts != lsa.lsa_stripe_count) {
3851                                 fprintf(stderr,
3852                                         "error: %s: stripe count %lld doesn't match the number of OSTs: %d\n",
3853                                         argv[0], lsa.lsa_stripe_count,
3854                                         lsa.lsa_nr_tgts);
3855                                 free(param);
3856                                 goto usage_error;
3857                         }
3858
3859                         param->lsp_is_specific = true;
3860                         param->lsp_stripe_count = lsa.lsa_nr_tgts;
3861                         memcpy(param->lsp_osts, tgts,
3862                                sizeof(*tgts) * lsa.lsa_nr_tgts);
3863                 }
3864         }
3865
3866         if (from_yaml) {
3867                 /* generate a layout from a YAML template */
3868                 result = lfs_comp_create_from_yaml(template, &layout,
3869                                                    &lsa, tgts);
3870                 if (result) {
3871                         fprintf(stderr, "error: %s: can't create composite "
3872                                 "layout from template file %s\n",
3873                                 argv[0], template);
3874                         goto error;
3875                 }
3876         } else if (from_copy) {
3877                 layout = llapi_layout_get_by_path(template, 0);
3878                 if (layout == NULL) {
3879                         fprintf(stderr,
3880                             "%s: can't create composite layout from file %s.\n",
3881                                 progname, template);
3882                         goto error;
3883                 }
3884         }
3885
3886         for (fname = argv[optind]; fname != NULL; fname = argv[++optind]) {
3887                 if (migrate_mdt_mode) {
3888                         result = llapi_migrate_mdt(fname, &migrate_mdt_param);
3889                 } else if (migrate_mode) {
3890                         result = lfs_migrate(fname, migration_flags, param,
3891                                              layout);
3892                 } else if (comp_set != 0) {
3893                         result = lfs_component_set(fname, comp_id,
3894                                                    lsa.lsa_comp_flags,
3895                                                    lsa.lsa_comp_neg_flags);
3896                 } else if (comp_del != 0) {
3897                         result = lfs_component_del(fname, comp_id,
3898                                                    lsa.lsa_comp_flags,
3899                                                    lsa.lsa_comp_neg_flags);
3900                 } else if (comp_add != 0) {
3901                         result = lfs_component_add(fname, layout);
3902                 } else if (opc == SO_MIRROR_CREATE) {
3903                         result = mirror_create(fname, mirror_list);
3904                 } else if (opc == SO_MIRROR_EXTEND) {
3905                         result = mirror_extend(fname, mirror_list,
3906                                                mirror_flags);
3907                 } else if (opc == SO_MIRROR_SPLIT || opc == SO_MIRROR_DELETE) {
3908                         if (!mirror_id && !comp_id && !lsa.lsa_pool_name) {
3909                                 fprintf(stderr,
3910                                         "%s: no mirror specified to delete from '%s'\n",
3911                                         progname, fname);
3912                                 goto usage_error;
3913                         }
3914                         if (lsa.lsa_pool_name)
3915                                 mirror_flags |= MF_COMP_POOL;
3916                         else if (mirror_id != 0)
3917                                 comp_id = mirror_id;
3918                         else
3919                                 mirror_flags |= MF_COMP_ID;
3920                         result = mirror_split(fname, comp_id, lsa.lsa_pool_name,
3921                                               mirror_flags,
3922                                               has_m_file ? mirror_list->m_file :
3923                                               NULL);
3924                 } else if (layout != NULL) {
3925                         result = lfs_component_create(fname, O_CREAT | O_WRONLY,
3926                                                       mode, layout);
3927                         if (result >= 0) {
3928                                 close(result);
3929                                 result = 0;
3930                         }
3931                 } else if (foreign_mode) {
3932                         result = llapi_file_create_foreign(fname, mode, type,
3933                                                            flags, xattr);
3934                         if (result >= 0) {
3935                                 close(result);
3936                                 result = 0;
3937                         }
3938                 } else {
3939                         result = llapi_file_open_param(fname,
3940                                                        O_CREAT | O_WRONLY,
3941                                                        mode, param);
3942                         if (result >= 0) {
3943                                 close(result);
3944                                 result = 0;
3945                         }
3946                 }
3947                 if (result) {
3948                         /* Save the first error encountered. */
3949                         if (result2 == 0)
3950                                 result2 = result;
3951                         continue;
3952                 }
3953         }
3954
3955         if (mode_opt != NULL)
3956                 umask(previous_umask);
3957
3958         free(param);
3959         free(migrate_mdt_param.fp_lmv_md);
3960         llapi_layout_free(layout);
3961         lfs_mirror_list_free(mirror_list);
3962         return result2;
3963 usage_error:
3964         result = CMD_HELP;
3965 error:
3966         llapi_layout_free(layout);
3967         lfs_mirror_list_free(mirror_list);
3968         return result;
3969 }
3970
3971 static int lfs_poollist(int argc, char **argv)
3972 {
3973         if (argc != 2)
3974                 return CMD_HELP;
3975
3976         return llapi_poollist(argv[1]);
3977 }
3978
3979 static time_t set_time(struct find_param *param, time_t *time, time_t *set,
3980                        char *str)
3981 {
3982         long long t = 0;
3983         int res = 0;
3984         char *endptr = "AD";
3985         char *timebuf;
3986
3987         if (str[0] == '+')
3988                 res = 1;
3989         else if (str[0] == '-')
3990                 res = -1;
3991
3992         if (res)
3993                 str++;
3994
3995         for (timebuf = str; *endptr && *(endptr + 1); timebuf = endptr + 1) {
3996                 long long val = strtoll(timebuf, &endptr, 0);
3997                 int unit = 1;
3998
3999                 switch (*endptr) {
4000                 case  'y':
4001                         unit *= 52; /* 52 weeks + 1 day below */
4002                 case  'w':      /* fallthrough */
4003                         unit *= 7;
4004                 case '\0': /* days are default unit if none used */
4005                 case  'd':      /* fallthrough */
4006                         unit = (unit + (*endptr == 'y')) * 24;
4007                 case  'h':      /* fallthrough */
4008                         unit *= 60;
4009                 case  'm':      /* fallthrough */
4010                         unit *= 60;
4011                 case  's':      /* fallthrough */
4012                         break;
4013                         /* don't need to multiply by 1 for seconds */
4014                 default:
4015                         fprintf(stderr,
4016                                 "%s find: bad time string '%s': %s\n",
4017                                 progname, timebuf, strerror(EINVAL));
4018                         return LONG_MAX;
4019                 }
4020
4021                 if (param->fp_time_margin == 0 ||
4022                     (*endptr && unit < param->fp_time_margin))
4023                         param->fp_time_margin = unit;
4024
4025                 t += val * unit;
4026         }
4027         if (*time < t) {
4028                 if (res != 0)
4029                         str--;
4030                 fprintf(stderr, "%s find: bad time '%s': too large\n",
4031                         progname, str);
4032                 return LONG_MAX;
4033         }
4034
4035         *set = *time - t;
4036
4037         return res;
4038 }
4039
4040 static int name2uid(unsigned int *id, const char *name)
4041 {
4042         struct passwd *passwd;
4043
4044         passwd = getpwnam(name);
4045         if (passwd == NULL)
4046                 return -ENOENT;
4047         *id = passwd->pw_uid;
4048
4049         return 0;
4050 }
4051
4052 static int name2gid(unsigned int *id, const char *name)
4053 {
4054         struct group *group;
4055
4056         group = getgrnam(name);
4057         if (group == NULL)
4058                 return -ENOENT;
4059         *id = group->gr_gid;
4060
4061         return 0;
4062 }
4063
4064 static inline int name2projid(unsigned int *id, const char *name)
4065 {
4066         return -ENOTSUP;
4067 }
4068
4069 static int uid2name(char **name, unsigned int id)
4070 {
4071         struct passwd *passwd;
4072
4073         passwd = getpwuid(id);
4074         if (passwd == NULL)
4075                 return -ENOENT;
4076         *name = passwd->pw_name;
4077
4078         return 0;
4079 }
4080
4081 static inline int gid2name(char **name, unsigned int id)
4082 {
4083         struct group *group;
4084
4085         group = getgrgid(id);
4086         if (group == NULL)
4087                 return -ENOENT;
4088         *name = group->gr_name;
4089
4090         return 0;
4091 }
4092
4093 static int name2layout(__u32 *layout, char *name)
4094 {
4095         char *ptr, *layout_name;
4096
4097         *layout = 0;
4098         for (ptr = name; ; ptr = NULL) {
4099                 layout_name = strtok(ptr, ",");
4100                 if (layout_name == NULL)
4101                         break;
4102                 if (strcmp(layout_name, "released") == 0)
4103                         *layout |= LOV_PATTERN_F_RELEASED;
4104                 else if (strcmp(layout_name, "raid0") == 0)
4105                         *layout |= LOV_PATTERN_RAID0;
4106                 else if (strcmp(layout_name, "mdt") == 0)
4107                         *layout |= LOV_PATTERN_MDT;
4108                 else if (strcmp(layout_name, "overstriping") == 0)
4109                         *layout |= LOV_PATTERN_OVERSTRIPING;
4110                 else
4111                         return -1;
4112         }
4113         return 0;
4114 }
4115
4116 static int lfs_find(int argc, char **argv)
4117 {
4118         int c, rc;
4119         int ret = 0;
4120         time_t t;
4121         struct find_param param = {
4122                 .fp_max_depth = -1,
4123                 .fp_quiet = 1,
4124                 .fp_time_margin = 24 * 60 * 60,
4125         };
4126         struct option long_opts[] = {
4127         { .val = 'A',   .name = "atime",        .has_arg = required_argument },
4128         { .val = 'b',   .name = "blocks",       .has_arg = required_argument },
4129         { .val = LFS_COMP_COUNT_OPT,
4130                         .name = "comp-count",   .has_arg = required_argument },
4131         { .val = LFS_COMP_COUNT_OPT,
4132                         .name = "component-count",
4133                                                 .has_arg = required_argument },
4134         { .val = LFS_COMP_FLAGS_OPT,
4135                         .name = "comp-flags",   .has_arg = required_argument },
4136         { .val = LFS_COMP_FLAGS_OPT,
4137                         .name = "component-flags",
4138                                                 .has_arg = required_argument },
4139         { .val = LFS_COMP_START_OPT,
4140                         .name = "comp-start",   .has_arg = required_argument },
4141         { .val = LFS_COMP_START_OPT,
4142                         .name = "component-start",
4143                                                 .has_arg = required_argument },
4144         { .val = LFS_MIRROR_STATE_OPT,
4145                         .name = "mirror-state", .has_arg = required_argument },
4146         { .val = LFS_LAYOUT_FOREIGN_OPT,
4147                         .name = "foreign",      .has_arg = optional_argument},
4148         { .val = LFS_NEWERXY_OPT,
4149                         .name = "newer",        .has_arg = required_argument},
4150         { .val = LFS_NEWERXY_OPT,
4151                         .name = "neweraa",      .has_arg = required_argument},
4152         { .val = LFS_NEWERXY_OPT,
4153                         .name = "neweram",      .has_arg = required_argument},
4154         { .val = LFS_NEWERXY_OPT,
4155                         .name = "newerac",      .has_arg = required_argument},
4156         { .val = LFS_NEWERXY_OPT,
4157                         .name = "newerma",      .has_arg = required_argument},
4158         { .val = LFS_NEWERXY_OPT,
4159                         .name = "newermm",      .has_arg = required_argument},
4160         { .val = LFS_NEWERXY_OPT,
4161                         .name = "newermc",      .has_arg = required_argument},
4162         { .val = LFS_NEWERXY_OPT,
4163                         .name = "newerca",      .has_arg = required_argument},
4164         { .val = LFS_NEWERXY_OPT,
4165                         .name = "newercm",      .has_arg = required_argument},
4166         { .val = LFS_NEWERXY_OPT,
4167                         .name = "newercc",      .has_arg = required_argument},
4168         { .val = LFS_NEWERXY_OPT,
4169                         .name = "newerat",      .has_arg = required_argument},
4170         { .val = LFS_NEWERXY_OPT,
4171                         .name = "newermt",      .has_arg = required_argument},
4172         { .val = LFS_NEWERXY_OPT,
4173                         .name = "newerct",      .has_arg = required_argument},
4174         { .val = 'c',   .name = "stripe-count", .has_arg = required_argument },
4175         { .val = 'c',   .name = "stripe_count", .has_arg = required_argument },
4176         { .val = 'C',   .name = "ctime",        .has_arg = required_argument },
4177 /* getstripe { .val = 'd', .name = "directory", .has_arg = no_argument }, */
4178         { .val = 'D',   .name = "maxdepth",     .has_arg = required_argument },
4179         { .val = 'E',   .name = "comp-end",     .has_arg = required_argument },
4180         { .val = 'E',   .name = "component-end",
4181                                                 .has_arg = required_argument },
4182 /* find { .val = 'F',   .name = "fid",          .has_arg = no_argument }, */
4183         { .val = LFS_LAYOUT_FOREIGN_OPT,
4184                         .name = "foreign",      .has_arg = optional_argument},
4185         { .val = 'g',   .name = "gid",          .has_arg = required_argument },
4186         { .val = 'G',   .name = "group",        .has_arg = required_argument },
4187         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
4188         { .val = 'i',   .name = "stripe-index", .has_arg = required_argument },
4189         { .val = 'i',   .name = "stripe_index", .has_arg = required_argument },
4190 /* getstripe { .val = 'I', .name = "comp-id",   .has_arg = required_argument }*/
4191         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
4192         { .val = 'L',   .name = "layout",       .has_arg = required_argument },
4193         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
4194         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
4195         { .val = 'm',   .name = "mdt_index",    .has_arg = required_argument },
4196         { .val = 'M',   .name = "mtime",        .has_arg = required_argument },
4197         { .val = 'n',   .name = "name",         .has_arg = required_argument },
4198         { .val = 'N',   .name = "mirror-count", .has_arg = required_argument },
4199 /* find { .val = 'o'    .name = "or", .has_arg = no_argument }, like find(1) */
4200         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4201         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4202         /* no short option for pool yet, can be 'p' after 2.18 */
4203         { .val = LFS_POOL_OPT,
4204                         .name = "pool",         .has_arg = required_argument },
4205         { .val = '0',   .name = "print0",       .has_arg = no_argument },
4206         { .val = 'P',   .name = "print",        .has_arg = no_argument },
4207         { .val = LFS_PROJID_OPT,
4208                         .name = "projid",       .has_arg = required_argument },
4209 /* getstripe { .val = 'q', .name = "quiet",     .has_arg = no_argument }, */
4210 /* getstripe { .val = 'r', .name = "recursive", .has_arg = no_argument }, */
4211 /* getstripe { .val = 'R', .name = "raw",       .has_arg = no_argument }, */
4212         { .val = 's',   .name = "size",         .has_arg = required_argument },
4213         { .val = 'S',   .name = "stripe-size",  .has_arg = required_argument },
4214         { .val = 'S',   .name = "stripe_size",  .has_arg = required_argument },
4215         { .val = 't',   .name = "type",         .has_arg = required_argument },
4216         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
4217         { .val = 'u',   .name = "uid",          .has_arg = required_argument },
4218         { .val = 'U',   .name = "user",         .has_arg = required_argument },
4219         { .val = 'z',   .name = "extension-size",
4220                                                 .has_arg = required_argument },
4221         { .val = 'z',   .name = "ext-size",     .has_arg = required_argument },
4222 /* getstripe { .val = 'v', .name = "verbose",   .has_arg = no_argument }, */
4223 /* getstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
4224         { .name = NULL } };
4225         int optidx = 0;
4226         int pathstart = -1;
4227         int pathend = -1;
4228         int pathbad = -1;
4229         int neg_opt = 0;
4230         time_t *xtime;
4231         int *xsign;
4232         int isoption;
4233         char *endptr;
4234
4235         time(&t);
4236
4237         /* when getopt_long_only() hits '!' it returns 1, puts "!" in optarg */
4238         while ((c = getopt_long_only(argc, argv,
4239                         "-0A:b:c:C:D:E:g:G:H:i:L:m:M:n:N:O:Ppqrs:S:t:T:u:U:vz:",
4240                         long_opts, &optidx)) >= 0) {
4241                 xtime = NULL;
4242                 xsign = NULL;
4243                 if (neg_opt)
4244                         --neg_opt;
4245                 /* '!' is part of option */
4246                 /* when getopt_long_only() finds a string which is not
4247                  * an option nor a known option argument it returns 1
4248                  * in that case if we already have found pathstart and pathend
4249                  * (i.e. we have the list of pathnames),
4250                  * the only supported value is "!"
4251                  */
4252                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
4253                 if (!isoption && pathend != -1) {
4254                         fprintf(stderr, "err: %s: filename|dirname must either "
4255                                         "precede options or follow options\n",
4256                                         argv[0]);
4257                         ret = CMD_HELP;
4258                         goto err;
4259                 }
4260                 if (!isoption && pathstart == -1)
4261                         pathstart = optind - 1;
4262                 if (isoption && pathstart != -1 && pathend == -1)
4263                         pathend = optind - 2;
4264                 switch (c) {
4265                 case 0:
4266                         /* Long options. */
4267                         break;
4268                 case 1:
4269                         /* unknown; opt is "!" or path component,
4270                          * checking done above.
4271                          */
4272                         if (strcmp(optarg, "!") == 0)
4273                                 neg_opt = 2;
4274                         break;
4275                 case 'A':
4276                         xtime = &param.fp_atime;
4277                         xsign = &param.fp_asign;
4278                         param.fp_exclude_atime = !!neg_opt;
4279                         /* no break, this falls through to 'C' for ctime */
4280                 case 'C':
4281                         if (c == 'C') {
4282                                 xtime = &param.fp_ctime;
4283                                 xsign = &param.fp_csign;
4284                                 param.fp_exclude_ctime = !!neg_opt;
4285                         }
4286                         /* no break, this falls through to 'M' for mtime */
4287                 case 'M':
4288                         if (c == 'M') {
4289                                 xtime = &param.fp_mtime;
4290                                 xsign = &param.fp_msign;
4291                                 param.fp_exclude_mtime = !!neg_opt;
4292                         }
4293                         rc = set_time(&param, &t, xtime, optarg);
4294                         if (rc == LONG_MAX) {
4295                                 ret = -1;
4296                                 goto err;
4297                         }
4298                         if (rc)
4299                                 *xsign = rc;
4300                         break;
4301                 case 'b':
4302                         if (optarg[0] == '+') {
4303                                 param.fp_blocks_sign = -1;
4304                                 optarg++;
4305                         } else if (optarg[0] == '-') {
4306                                 param.fp_blocks_sign =  1;
4307                                 optarg++;
4308                         }
4309
4310                         param.fp_blocks_units = 1024;
4311                         ret = llapi_parse_size(optarg, &param.fp_blocks,
4312                                                &param.fp_blocks_units, 0);
4313                         if (ret) {
4314                                 fprintf(stderr, "error: bad blocks '%s'\n",
4315                                         optarg);
4316                                 goto err;
4317                         }
4318                         param.fp_check_blocks = 1;
4319                         param.fp_exclude_blocks = !!neg_opt;
4320                         break;
4321                 case LFS_COMP_COUNT_OPT:
4322                         if (optarg[0] == '+') {
4323                                 param.fp_comp_count_sign = -1;
4324                                 optarg++;
4325                         } else if (optarg[0] == '-') {
4326                                 param.fp_comp_count_sign =  1;
4327                                 optarg++;
4328                         }
4329
4330                         param.fp_comp_count = strtoul(optarg, &endptr, 0);
4331                         if (*endptr != '\0') {
4332                                 fprintf(stderr, "error: bad component count "
4333                                         "'%s'\n", optarg);
4334                                 goto err;
4335                         }
4336                         param.fp_check_comp_count = 1;
4337                         param.fp_exclude_comp_count = !!neg_opt;
4338                         break;
4339                 case LFS_COMP_FLAGS_OPT:
4340                         rc = comp_str2flags(optarg, &param.fp_comp_flags,
4341                                             &param.fp_comp_neg_flags);
4342                         if (rc) {
4343                                 fprintf(stderr, "error: bad component flags "
4344                                         "'%s'\n", optarg);
4345                                 goto err;
4346                         }
4347                         param.fp_check_comp_flags = 1;
4348                         if (neg_opt) {
4349                                 __u32 flags = param.fp_comp_neg_flags;
4350                                 param.fp_comp_neg_flags = param.fp_comp_flags;
4351                                 param.fp_comp_flags = flags;
4352                         }
4353                         break;
4354                 case LFS_COMP_START_OPT:
4355                         if (optarg[0] == '+') {
4356                                 param.fp_comp_start_sign = -1;
4357                                 optarg++;
4358                         } else if (optarg[0] == '-') {
4359                                 param.fp_comp_start_sign =  1;
4360                                 optarg++;
4361                         }
4362
4363                         rc = llapi_parse_size(optarg, &param.fp_comp_start,
4364                                               &param.fp_comp_start_units, 0);
4365                         if (rc) {
4366                                 fprintf(stderr, "error: bad component start "
4367                                         "'%s'\n", optarg);
4368                                 goto err;
4369                         }
4370                         param.fp_check_comp_start = 1;
4371                         param.fp_exclude_comp_start = !!neg_opt;
4372                         break;
4373                 case LFS_MIRROR_STATE_OPT:
4374                         rc = mirror_str2state(optarg, &param.fp_mirror_state,
4375                                               &param.fp_mirror_neg_state);
4376                         if (rc) {
4377                                 fprintf(stderr,
4378                                         "error: bad mirrored file state '%s'\n",
4379                                         optarg);
4380                                 goto err;
4381                         }
4382                         param.fp_check_mirror_state = 1;
4383                         if (neg_opt) {
4384                                 __u16 state = param.fp_mirror_neg_state;
4385                                 param.fp_mirror_neg_state =
4386                                         param.fp_mirror_state;
4387                                 param.fp_mirror_state = state;
4388                         }
4389                         break;
4390                 case 'c':
4391                         if (optarg[0] == '+') {
4392                                 param.fp_stripe_count_sign = -1;
4393                                 optarg++;
4394                         } else if (optarg[0] == '-') {
4395                                 param.fp_stripe_count_sign =  1;
4396                                 optarg++;
4397                         }
4398
4399                         param.fp_stripe_count = strtoul(optarg, &endptr, 0);
4400                         if (*endptr != '\0') {
4401                                 fprintf(stderr,"error: bad stripe_count '%s'\n",
4402                                         optarg);
4403                                 ret = -1;
4404                                 goto err;
4405                         }
4406                         param.fp_check_stripe_count = 1;
4407                         param.fp_exclude_stripe_count = !!neg_opt;
4408                         break;
4409                 case 'D':
4410                         param.fp_max_depth = strtol(optarg, 0, 0);
4411                         break;
4412                 case 'E':
4413                         if (optarg[0] == '+') {
4414                                 param.fp_comp_end_sign = -1;
4415                                 optarg++;
4416                         } else if (optarg[0] == '-') {
4417                                 param.fp_comp_end_sign =  1;
4418                                 optarg++;
4419                         }
4420
4421                         if (arg_is_eof(optarg)) {
4422                                 param.fp_comp_end = LUSTRE_EOF;
4423                                 param.fp_comp_end_units = 1;
4424                                 rc = 0;
4425                         } else {
4426                                 rc = llapi_parse_size(optarg,
4427                                                 &param.fp_comp_end,
4428                                                 &param.fp_comp_end_units, 0);
4429                         }
4430                         if (rc) {
4431                                 fprintf(stderr, "error: bad component end "
4432                                         "'%s'\n", optarg);
4433                                 goto err;
4434                         }
4435                         param.fp_check_comp_end = 1;
4436                         param.fp_exclude_comp_end = !!neg_opt;
4437                         break;
4438                 case LFS_LAYOUT_FOREIGN_OPT: {
4439                         /* all types by default */
4440                         uint32_t type = LU_FOREIGN_TYPE_UNKNOWN;
4441
4442                         if (optarg != NULL) {
4443                                 /* check pure numeric */
4444                                 type = strtoul(optarg, &endptr, 0);
4445                                 if (*endptr) {
4446                                         /* check name */
4447                                         type = check_foreign_type_name(optarg);
4448                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
4449                                                 fprintf(stderr,
4450                                                         "%s %s: unknown foreign type '%s'\n",
4451                                                         progname, argv[0],
4452                                                         optarg);
4453                                                 return CMD_HELP;
4454                                         }
4455                                 }
4456                         }
4457                         param.fp_foreign_type = type;
4458                         param.fp_check_foreign = 1;
4459                         param.fp_exclude_foreign = !!neg_opt;
4460                         break;
4461                 }
4462                 case LFS_NEWERXY_OPT: {
4463                         char x = 'm';
4464                         char y = 'm';
4465                         int xidx;
4466                         int negidx;
4467                         time_t *newery;
4468                         time_t ref = time(NULL);
4469
4470                         /* no need to check bad options, they won't get here */
4471                         if (strlen(long_opts[optidx].name) == 7) {
4472                                 x = long_opts[optidx].name[5];
4473                                 y = long_opts[optidx].name[6];
4474                         }
4475
4476                         if (y == 't') {
4477                                 static const char *const fmts[] = {
4478                                         "%Y-%m-%d %H:%M:%S",
4479                                         "%Y-%m-%d %H:%M",
4480                                         "%Y-%m-%d",
4481                                         "%H:%M:%S", /* sometime today */
4482                                         "%H:%M",
4483                                         "@%s",
4484                                         "%s",
4485                                         NULL };
4486                                 struct tm tm;
4487                                 bool found = false;
4488                                 int i;
4489
4490                                 for (i = 0; fmts[i] != NULL; i++) {
4491                                         char *ptr;
4492
4493                                         /* Init for times relative to today */
4494                                         if (strncmp(fmts[i], "%H", 2) == 0)
4495                                                 localtime_r(&ref, &tm);
4496                                         else
4497                                                 memset(&tm, 0, sizeof(tm));
4498                                         ptr = strptime(optarg, fmts[i], &tm);
4499                                         /* Skip spaces */
4500                                         while (ptr && isspace(*ptr))
4501                                                 ptr++;
4502                                         if (ptr == optarg + strlen(optarg)) {
4503                                                 found = true;
4504                                                 break;
4505                                         }
4506                                 }
4507
4508                                 if (!found) {
4509                                         fprintf(stderr,
4510                                                 "%s: invalid time '%s'\n",
4511                                                 progname, optarg);
4512                                         fprintf(stderr,
4513                                                 "supported formats are:\n  ");
4514                                         for (i = 0; fmts[i] != NULL; i++)
4515                                                 fprintf(stderr, "'%s', ",
4516                                                         fmts[i]);
4517                                         fprintf(stderr, "\n");
4518                                         ret = -EINVAL;
4519                                         goto err;
4520                                 }
4521
4522                                 ref = mktime(&tm);
4523                         } else {
4524                                 struct stat statbuf;
4525
4526                                 if (stat(optarg, &statbuf) < 0) {
4527                                         fprintf(stderr,
4528                                                 "%s: cannot stat file '%s': %s\n",
4529                                                 progname, optarg,
4530                                                 strerror(errno));
4531                                         ret = -errno;
4532                                         goto err;
4533                                 }
4534
4535                                 switch (y) {
4536                                 case 'a':
4537                                         ref = statbuf.st_atime;
4538                                         break;
4539                                 case 'm':
4540                                         ref = statbuf.st_mtime;
4541                                         break;
4542                                 case 'c':
4543                                         ref = statbuf.st_ctime;
4544                                         break;
4545                                 default:
4546                                         fprintf(stderr,
4547                                                 "%s: invalid Y argument: '%c'\n",
4548                                                 progname, x);
4549                                         ret = -EINVAL;
4550                                         goto err;
4551                                 }
4552                         }
4553
4554                         switch (x) {
4555                         case 'a':
4556                                 xidx = NEWERXY_ATIME;
4557                                 break;
4558                         case 'm':
4559                                 xidx = NEWERXY_MTIME;
4560                                 break;
4561                         case 'c':
4562                                 xidx = NEWERXY_CTIME;
4563                                 break;
4564                         default:
4565                                 fprintf(stderr,
4566                                         "%s: invalid X argument: '%c'\n",
4567                                         progname, x);
4568                                 ret = -EINVAL;
4569                                 goto err;
4570                         }
4571
4572                         negidx = !!neg_opt;
4573                         newery = &param.fp_newery[xidx][negidx];
4574
4575                         if (*newery == 0) {
4576                                 *newery = ref;
4577                         } else {
4578                                 if (negidx)
4579                                         *newery = *newery > ref ? ref : *newery;
4580                                 else
4581                                         *newery = *newery > ref ? *newery : ref;
4582                         }
4583                         param.fp_newerxy = 1;
4584                         break;
4585                 }
4586                 case 'g':
4587                 case 'G':
4588                         rc = name2gid(&param.fp_gid, optarg);
4589                         if (rc) {
4590                                 param.fp_gid = strtoul(optarg, &endptr, 10);
4591                                 if (*endptr != '\0') {
4592                                         fprintf(stderr, "Group/GID: %s cannot "
4593                                                 "be found.\n", optarg);
4594                                         ret = -1;
4595                                         goto err;
4596                                 }
4597                         }
4598                         param.fp_exclude_gid = !!neg_opt;
4599                         param.fp_check_gid = 1;
4600                         break;
4601                 case 'H':
4602                         param.fp_hash_type = check_hashtype(optarg);
4603                         if (param.fp_hash_type == 0) {
4604                                 fprintf(stderr, "error: bad hash_type '%s'\n",
4605                                         optarg);
4606                                 ret = -1;
4607                                 goto err;
4608                         }
4609                         param.fp_check_hash_type = 1;
4610                         param.fp_exclude_hash_type = !!neg_opt;
4611                         break;
4612                 case 'l':
4613                         param.fp_lazy = 1;
4614                         break;
4615                 case 'L':
4616                         ret = name2layout(&param.fp_layout, optarg);
4617                         if (ret)
4618                                 goto err;
4619                         param.fp_exclude_layout = !!neg_opt;
4620                         param.fp_check_layout = 1;
4621                         break;
4622                 case 'u':
4623                 case 'U':
4624                         rc = name2uid(&param.fp_uid, optarg);
4625                         if (rc) {
4626                                 param.fp_uid = strtoul(optarg, &endptr, 10);
4627                                 if (*endptr != '\0') {
4628                                         fprintf(stderr, "User/UID: %s cannot "
4629                                                 "be found.\n", optarg);
4630                                         ret = -1;
4631                                         goto err;
4632                                 }
4633                         }
4634                         param.fp_exclude_uid = !!neg_opt;
4635                         param.fp_check_uid = 1;
4636                         break;
4637                 case 'n':
4638                         param.fp_pattern = (char *)optarg;
4639                         param.fp_exclude_pattern = !!neg_opt;
4640                         break;
4641                 case 'N':
4642                         if (optarg[0] == '+') {
4643                                 param.fp_mirror_count_sign = -1;
4644                                 optarg++;
4645                         } else if (optarg[0] == '-') {
4646                                 param.fp_mirror_count_sign =  1;
4647                                 optarg++;
4648                         }
4649
4650                         param.fp_mirror_count = strtoul(optarg, &endptr, 0);
4651                         if (*endptr != '\0') {
4652                                 fprintf(stderr,
4653                                         "error: bad mirror count '%s'\n",
4654                                         optarg);
4655                                 goto err;
4656                         }
4657                         param.fp_check_mirror_count = 1;
4658                         param.fp_exclude_mirror_count = !!neg_opt;
4659                         break;
4660                 case 'm':
4661                 case 'i':
4662                 case 'O': {
4663                         char *buf, *token, *next, *p;
4664                         int len = 1;
4665                         void *tmp;
4666
4667                         buf = strdup(optarg);
4668                         if (buf == NULL) {
4669                                 ret = -ENOMEM;
4670                                 goto err;
4671                         }
4672
4673                         param.fp_exclude_obd = !!neg_opt;
4674
4675                         token = buf;
4676                         while (token && *token) {
4677                                 token = strchr(token, ',');
4678                                 if (token) {
4679                                         len++;
4680                                         token++;
4681                                 }
4682                         }
4683                         if (c == 'm') {
4684                                 param.fp_exclude_mdt = !!neg_opt;
4685                                 param.fp_num_alloc_mdts += len;
4686                                 tmp = realloc(param.fp_mdt_uuid,
4687                                               param.fp_num_alloc_mdts *
4688                                               sizeof(*param.fp_mdt_uuid));
4689                                 if (tmp == NULL) {
4690                                         ret = -ENOMEM;
4691                                         goto err_free;
4692                                 }
4693
4694                                 param.fp_mdt_uuid = tmp;
4695                         } else {
4696                                 param.fp_exclude_obd = !!neg_opt;
4697                                 param.fp_num_alloc_obds += len;
4698                                 tmp = realloc(param.fp_obd_uuid,
4699                                               param.fp_num_alloc_obds *
4700                                               sizeof(*param.fp_obd_uuid));
4701                                 if (tmp == NULL) {
4702                                         ret = -ENOMEM;
4703                                         goto err_free;
4704                                 }
4705
4706                                 param.fp_obd_uuid = tmp;
4707                         }
4708                         for (token = buf; token && *token; token = next) {
4709                                 struct obd_uuid *puuid;
4710                                 if (c == 'm') {
4711                                         puuid =
4712                                         &param.fp_mdt_uuid[param.fp_num_mdts++];
4713                                 } else {
4714                                         puuid =
4715                                         &param.fp_obd_uuid[param.fp_num_obds++];
4716                                 }
4717                                 p = strchr(token, ',');
4718                                 next = 0;
4719                                 if (p) {
4720                                         *p = 0;
4721                                         next = p+1;
4722                                 }
4723
4724                                 if (strlen(token) > sizeof(puuid->uuid) - 1) {
4725                                         ret = -E2BIG;
4726                                         goto err_free;
4727                                 }
4728
4729                                 strncpy(puuid->uuid, token,
4730                                         sizeof(puuid->uuid));
4731                         }
4732 err_free:
4733                         if (buf)
4734                                 free(buf);
4735                         break;
4736                 }
4737 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 18, 53, 0)
4738                 case 'p':
4739 #endif
4740                 case LFS_POOL_OPT:
4741                         if (strlen(optarg) > LOV_MAXPOOLNAME) {
4742                                 fprintf(stderr,
4743                                         "Pool name %s is too long (max %d)\n",
4744                                         optarg, LOV_MAXPOOLNAME);
4745                                 ret = -1;
4746                                 goto err;
4747                         }
4748                         /*
4749                          * We do check for empty pool because empty pool
4750                          * is used to find V1 LOV attributes
4751                          */
4752                         strncpy(param.fp_poolname, optarg, LOV_MAXPOOLNAME);
4753                         param.fp_poolname[LOV_MAXPOOLNAME] = '\0';
4754                         param.fp_exclude_pool = !!neg_opt;
4755                         param.fp_check_pool = 1;
4756                         break;
4757 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 14, 53, 0)
4758                 case 'p': /* want this for --pool, to match getstripe/find */
4759                         fprintf(stderr,
4760                                 "warning: -p deprecated, use --print0 or -0\n");
4761 #endif
4762                 case '0':
4763                         param.fp_zero_end = 1;
4764                         break;
4765                 case 'P': /* we always print, this option is a no-op */
4766                         break;
4767                 case LFS_PROJID_OPT:
4768                         rc = name2projid(&param.fp_projid, optarg);
4769                         if (rc) {
4770                                 param.fp_projid = strtoul(optarg, &endptr, 10);
4771                                 if (*endptr != '\0') {
4772                                         fprintf(stderr,
4773                                                 "Invalid project ID: %s",
4774                                                 optarg);
4775                                         ret = -1;
4776                                         goto err;
4777                                 }
4778                         }
4779                         param.fp_exclude_projid = !!neg_opt;
4780                         param.fp_check_projid = 1;
4781                         break;
4782                 case 's':
4783                         if (optarg[0] == '+') {
4784                                 param.fp_size_sign = -1;
4785                                 optarg++;
4786                         } else if (optarg[0] == '-') {
4787                                 param.fp_size_sign =  1;
4788                                 optarg++;
4789                         }
4790
4791                         ret = llapi_parse_size(optarg, &param.fp_size,
4792                                                &param.fp_size_units, 0);
4793                         if (ret) {
4794                                 fprintf(stderr, "error: bad file size '%s'\n",
4795                                         optarg);
4796                                 goto err;
4797                         }
4798                         param.fp_check_size = 1;
4799                         param.fp_exclude_size = !!neg_opt;
4800                         break;
4801                 case 'S':
4802                         if (optarg[0] == '+') {
4803                                 param.fp_stripe_size_sign = -1;
4804                                 optarg++;
4805                         } else if (optarg[0] == '-') {
4806                                 param.fp_stripe_size_sign =  1;
4807                                 optarg++;
4808                         }
4809
4810                         ret = llapi_parse_size(optarg, &param.fp_stripe_size,
4811                                                &param.fp_stripe_size_units, 0);
4812                         if (ret) {
4813                                 fprintf(stderr, "error: bad stripe_size '%s'\n",
4814                                         optarg);
4815                                 goto err;
4816                         }
4817                         param.fp_check_stripe_size = 1;
4818                         param.fp_exclude_stripe_size = !!neg_opt;
4819                         break;
4820                 case 't':
4821                         param.fp_exclude_type = !!neg_opt;
4822                         switch (optarg[0]) {
4823                         case 'b':
4824                                 param.fp_type = S_IFBLK;
4825                                 break;
4826                         case 'c':
4827                                 param.fp_type = S_IFCHR;
4828                                 break;
4829                         case 'd':
4830                                 param.fp_type = S_IFDIR;
4831                                 break;
4832                         case 'f':
4833                                 param.fp_type = S_IFREG;
4834                                 break;
4835                         case 'l':
4836                                 param.fp_type = S_IFLNK;
4837                                 break;
4838                         case 'p':
4839                                 param.fp_type = S_IFIFO;
4840                                 break;
4841                         case 's':
4842                                 param.fp_type = S_IFSOCK;
4843                                 break;
4844                         default:
4845                                 fprintf(stderr, "error: %s: bad type '%s'\n",
4846                                         argv[0], optarg);
4847                                 ret = CMD_HELP;
4848                                 goto err;
4849                         };
4850                         break;
4851                 case 'T':
4852                         if (optarg[0] == '+') {
4853                                 param.fp_mdt_count_sign = -1;
4854                                 optarg++;
4855                         } else if (optarg[0] == '-') {
4856                                 param.fp_mdt_count_sign =  1;
4857                                 optarg++;
4858                         }
4859
4860                         param.fp_mdt_count = strtoul(optarg, &endptr, 0);
4861                         if (*endptr != '\0') {
4862                                 fprintf(stderr, "error: bad mdt_count '%s'\n",
4863                                         optarg);
4864                                 ret = -1;
4865                                 goto err;
4866                         }
4867                         param.fp_check_mdt_count = 1;
4868                         param.fp_exclude_mdt_count = !!neg_opt;
4869                         break;
4870                 case 'z':
4871                         if (optarg[0] == '+') {
4872                                 param.fp_ext_size_sign = -1;
4873                                 optarg++;
4874                         } else if (optarg[0] == '-') {
4875                                 param.fp_ext_size_sign =  1;
4876                                 optarg++;
4877                         }
4878
4879                         ret = llapi_parse_size(optarg, &param.fp_ext_size,
4880                                                &param.fp_ext_size_units, 0);
4881                         if (ret) {
4882                                 fprintf(stderr, "error: bad ext-size '%s'\n",
4883                                         optarg);
4884                                 goto err;
4885                         }
4886                         param.fp_ext_size /= SEL_UNIT_SIZE;
4887                         param.fp_ext_size_units /= SEL_UNIT_SIZE;
4888                         param.fp_check_ext_size = 1;
4889                         param.fp_exclude_ext_size = !!neg_opt;
4890                         break;
4891                 default:
4892                         ret = CMD_HELP;
4893                         goto err;
4894                 };
4895         }
4896
4897         if (pathstart == -1) {
4898                 fprintf(stderr, "error: %s: no filename|pathname\n",
4899                         argv[0]);
4900                 ret = CMD_HELP;
4901                 goto err;
4902         } else if (pathend == -1) {
4903                 /* no options */
4904                 pathend = argc;
4905         }
4906
4907         do {
4908                 rc = llapi_find(argv[pathstart], &param);
4909                 if (rc && !ret) {
4910                         ret = rc;
4911                         pathbad = pathstart;
4912                 }
4913         } while (++pathstart < pathend);
4914
4915         if (ret)
4916                 fprintf(stderr, "%s: failed for '%s': %s\n",
4917                         progname, argv[pathbad], strerror(-rc));
4918
4919 err:
4920         if (param.fp_obd_uuid && param.fp_num_alloc_obds)
4921                 free(param.fp_obd_uuid);
4922
4923         if (param.fp_mdt_uuid && param.fp_num_alloc_mdts)
4924                 free(param.fp_mdt_uuid);
4925
4926         return ret;
4927 }
4928
4929 static int lfs_getstripe_internal(int argc, char **argv,
4930                                   struct find_param *param)
4931 {
4932         struct option long_opts[] = {
4933 /* find { .val = 'A',   .name = "atime",        .has_arg = required_argument }*/
4934 /* find { .val = 'b',   .name = "blocks",       .has_arg = required_argument }*/
4935         { .val = LFS_COMP_COUNT_OPT,
4936                         .name = "comp-count",   .has_arg = no_argument },
4937         { .val = LFS_COMP_COUNT_OPT,
4938                 .name = "component-count",      .has_arg = no_argument },
4939         { .val = LFS_COMP_FLAGS_OPT,
4940                         .name = "comp-flags",   .has_arg = optional_argument },
4941         { .val = LFS_COMP_FLAGS_OPT,
4942                 .name = "component-flags",      .has_arg = optional_argument },
4943         { .val = LFS_COMP_START_OPT,
4944                         .name = "comp-start",   .has_arg = optional_argument },
4945         { .val = LFS_COMP_START_OPT,
4946                 .name = "component-start",      .has_arg = optional_argument },
4947         { .val = LFS_MIRROR_INDEX_OPT,
4948                 .name = "mirror-index",         .has_arg = required_argument },
4949         { .val = LFS_MIRROR_ID_OPT,
4950                 .name = "mirror-id",            .has_arg = required_argument },
4951         { .val = 'c',   .name = "stripe-count", .has_arg = no_argument },
4952         { .val = 'c',   .name = "stripe_count", .has_arg = no_argument },
4953 /* find { .val = 'C',   .name = "ctime",        .has_arg = required_argument }*/
4954         { .val = 'd',   .name = "directory",    .has_arg = no_argument },
4955         { .val = 'D',   .name = "default",      .has_arg = no_argument },
4956         { .val = 'E',   .name = "comp-end",     .has_arg = optional_argument },
4957         { .val = 'E',   .name = "component-end", .has_arg = optional_argument },
4958         { .val = 'F',   .name = "fid",          .has_arg = no_argument },
4959         { .val = 'g',   .name = "generation",   .has_arg = no_argument },
4960 /* find { .val = 'G',   .name = "group",        .has_arg = required_argument }*/
4961 /* dirstripe { .val = 'H', .name = "mdt-hash",  .has_arg = required_argument }*/
4962         { .val = 'i',   .name = "stripe-index", .has_arg = no_argument },
4963         { .val = 'i',   .name = "stripe_index", .has_arg = no_argument },
4964         { .val = 'I',   .name = "comp-id",      .has_arg = optional_argument },
4965         { .val = 'I',   .name = "component-id", .has_arg = optional_argument },
4966 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
4967         { .val = 'L',   .name = "layout",       .has_arg = no_argument },
4968         { .val = 'm',   .name = "mdt",          .has_arg = no_argument },
4969         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
4970         { .val = 'm',   .name = "mdt_index",    .has_arg = no_argument },
4971 /* find { .val = 'M',   .name = "mtime",        .has_arg = required_argument }*/
4972 /* find { .val = 'n',   .name = "name",         .has_arg = required_argument }*/
4973         { .val = 'N',   .name = "mirror-count", .has_arg = no_argument },
4974         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
4975         { .val = 'O',   .name = "ost",          .has_arg = required_argument },
4976         { .val = 'p',   .name = "pool",         .has_arg = no_argument },
4977 /* find { .val = 'P',   .name = "print",        .has_arg = no_argument }, */
4978         { .val = 'q',   .name = "quiet",        .has_arg = no_argument },
4979         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
4980         { .val = 'R',   .name = "raw",          .has_arg = no_argument },
4981         { .val = 'S',   .name = "stripe-size",  .has_arg = no_argument },
4982         { .val = 'S',   .name = "stripe_size",  .has_arg = no_argument },
4983 /* find { .val = 't',   .name = "type",         .has_arg = required_argument }*/
4984 /* dirstripe { .val = 'T', .name = "mdt-count", .has_arg = required_argument }*/
4985 /* find { .val = 'u',   .name = "uid",          .has_arg = required_argument }*/
4986 /* find { .val = 'U',   .name = "user",         .has_arg = required_argument }*/
4987         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
4988         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
4989         { .val = 'z',   .name = "extension-size", .has_arg = no_argument },
4990         { .val = 'z',   .name = "ext-size",     .has_arg = no_argument },
4991         { .name = NULL } };
4992         int c, rc;
4993         int neg_opt = 0;
4994         int pathstart = -1, pathend = -1;
4995         int isoption;
4996         char *end, *tmp;
4997
4998         while ((c = getopt_long(argc, argv,
4999                         "-cdDE::FghiI::LmMNoO:pqrRsSvyz",
5000                         long_opts, NULL)) != -1) {
5001                 if (neg_opt)
5002                         --neg_opt;
5003
5004                 /* '!' is part of option */
5005                 isoption = (c != 1) || (strcmp(optarg, "!") == 0);
5006                 if (!isoption && pathend != -1) {
5007                         fprintf(stderr,
5008                                 "error: %s: filename|dirname must either precede options or follow options\n",
5009                                 argv[0]);
5010                         return CMD_HELP;
5011                 }
5012                 if (!isoption && pathstart == -1)
5013                         pathstart = optind - 1;
5014                 if (isoption && pathstart != -1 && pathend == -1)
5015                         pathend = optind - 2;
5016
5017                 switch (c) {
5018                 case 1:
5019                         /* unknown: opt is "!" */
5020                         if (strcmp(optarg, "!") == 0)
5021                                 neg_opt = 2;
5022                         break;
5023                 case 'c':
5024                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5025                                 param->fp_verbose |= VERBOSE_COUNT;
5026                                 param->fp_max_depth = 0;
5027                         }
5028                         break;
5029                 case LFS_COMP_COUNT_OPT:
5030                         param->fp_verbose |= VERBOSE_COMP_COUNT;
5031                         param->fp_max_depth = 0;
5032                         break;
5033                 case LFS_COMP_FLAGS_OPT:
5034                         if (optarg != NULL) {
5035                                 rc = comp_str2flags(optarg,
5036                                                     &param->fp_comp_flags,
5037                                                     &param->fp_comp_neg_flags);
5038                                 if (rc != 0) {
5039                                         fprintf(stderr, "error: %s bad "
5040                                                 "component flags '%s'.\n",
5041                                                 argv[0], optarg);
5042                                         return CMD_HELP;
5043                                 }
5044                                 param->fp_check_comp_flags = 1;
5045                         } else {
5046                                 param->fp_verbose |= VERBOSE_COMP_FLAGS;
5047                                 param->fp_max_depth = 0;
5048                         }
5049                         break;
5050                 case LFS_COMP_START_OPT:
5051                         if (optarg != NULL) {
5052                                 tmp = optarg;
5053                                 if (tmp[0] == '+') {
5054                                         param->fp_comp_start_sign = -1;
5055                                         tmp++;
5056                                 } else if (tmp[0] == '-') {
5057                                         param->fp_comp_start_sign = 1;
5058                                         tmp++;
5059                                 }
5060                                 rc = llapi_parse_size(tmp,
5061                                                 &param->fp_comp_start,
5062                                                 &param->fp_comp_start_units, 0);
5063                                 if (rc != 0) {
5064                                         fprintf(stderr, "error: %s bad "
5065                                                 "component start '%s'.\n",
5066                                                 argv[0], tmp);
5067                                         return CMD_HELP;
5068                                 } else {
5069                                         param->fp_check_comp_start = 1;
5070                                 }
5071                         } else {
5072                                 param->fp_verbose |= VERBOSE_COMP_START;
5073                                 param->fp_max_depth = 0;
5074                         }
5075                         break;
5076                 case LFS_MIRROR_INDEX_OPT:
5077                         if (optarg[0] == '+') {
5078                                 param->fp_mirror_index_sign = -1;
5079                                 optarg++;
5080                         } else if (optarg[0] == '-') {
5081                                 param->fp_mirror_index_sign = 1;
5082                                 optarg++;
5083                         }
5084
5085                         param->fp_mirror_index = strtoul(optarg, &end, 0);
5086                         if (*end != '\0' || (param->fp_mirror_index == 0 &&
5087                             param->fp_mirror_index_sign == 0 && neg_opt == 0)) {
5088                                 fprintf(stderr,
5089                                         "%s %s: invalid mirror index '%s'\n",
5090                                         progname, argv[0], optarg);
5091                                 return CMD_HELP;
5092                         }
5093                         if (param->fp_mirror_id != 0) {
5094                                 fprintf(stderr,
5095                                         "%s %s: can't specify both mirror index and mirror ID\n",
5096                                         progname, argv[0]);
5097                                 return CMD_HELP;
5098                         }
5099                         param->fp_check_mirror_index = 1;
5100                         param->fp_exclude_mirror_index = !!neg_opt;
5101                         break;
5102                 case LFS_MIRROR_ID_OPT:
5103                         if (optarg[0] == '+') {
5104                                 param->fp_mirror_id_sign = -1;
5105                                 optarg++;
5106                         } else if (optarg[0] == '-') {
5107                                 param->fp_mirror_id_sign = 1;
5108                                 optarg++;
5109                         }
5110
5111                         param->fp_mirror_id = strtoul(optarg, &end, 0);
5112                         if (*end != '\0' || (param->fp_mirror_id == 0 &&
5113                             param->fp_mirror_id_sign == 0 && neg_opt == 0)) {
5114                                 fprintf(stderr,
5115                                         "%s %s: invalid mirror ID '%s'\n",
5116                                         progname, argv[0], optarg);
5117                                 return CMD_HELP;
5118                         }
5119                         if (param->fp_mirror_index != 0) {
5120                                 fprintf(stderr,
5121                                         "%s %s: can't specify both mirror index and mirror ID\n",
5122                                         progname, argv[0]);
5123                                 return CMD_HELP;
5124                         }
5125                         param->fp_check_mirror_id = 1;
5126                         param->fp_exclude_mirror_id = !!neg_opt;
5127                         break;
5128                 case 'd':
5129                         param->fp_max_depth = 0;
5130                         break;
5131                 case 'D':
5132                         param->fp_get_default_lmv = 1;
5133                         break;
5134                 case 'E':
5135                         if (optarg != NULL) {
5136                                 tmp = optarg;
5137                                 if (tmp[0] == '+') {
5138                                         param->fp_comp_end_sign = -1;
5139                                         tmp++;
5140                                 } else if (tmp[0] == '-') {
5141                                         param->fp_comp_end_sign = 1;
5142                                         tmp++;
5143                                 }
5144
5145                                 if (arg_is_eof(tmp)) {
5146                                         param->fp_comp_end = LUSTRE_EOF;
5147                                         param->fp_comp_end_units = 1;
5148                                         rc = 0;
5149                                 } else {
5150                                         rc = llapi_parse_size(tmp,
5151                                                 &param->fp_comp_end,
5152                                                 &param->fp_comp_end_units, 0);
5153                                 }
5154                                 if (rc != 0) {
5155                                         fprintf(stderr, "error: %s bad "
5156                                                 "component end '%s'.\n",
5157                                                 argv[0], tmp);
5158                                         return CMD_HELP;
5159                                 }
5160                                 param->fp_check_comp_end = 1;
5161                         } else {
5162                                 param->fp_verbose |= VERBOSE_COMP_END;
5163                                 param->fp_max_depth = 0;
5164                         }
5165                         break;
5166                 case 'F':
5167                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5168                                 param->fp_verbose |= VERBOSE_DFID;
5169                                 param->fp_max_depth = 0;
5170                         }
5171                         break;
5172                 case 'g':
5173                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5174                                 param->fp_verbose |= VERBOSE_GENERATION;
5175                                 param->fp_max_depth = 0;
5176                         }
5177                         break;
5178                 case 'i':
5179                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5180                                 param->fp_verbose |= VERBOSE_STRIPE_OFFSET;
5181                                 param->fp_max_depth = 0;
5182                         }
5183                         break;
5184                 case 'I':
5185                         if (optarg != NULL) {
5186                                 param->fp_comp_id = strtoul(optarg, &end, 0);
5187                                 if (*end != '\0' || param->fp_comp_id == 0 ||
5188                                     param->fp_comp_id > LCME_ID_MAX) {
5189                                         fprintf(stderr, "error: %s bad "
5190                                                 "component id '%s'\n",
5191                                                 argv[0], optarg);
5192                                         return CMD_HELP;
5193                                 } else {
5194                                         param->fp_check_comp_id = 1;
5195                                 }
5196                         } else {
5197                                 param->fp_max_depth = 0;
5198                                 param->fp_verbose |= VERBOSE_COMP_ID;
5199                         }
5200                         break;
5201                 case 'L':
5202                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5203                                 param->fp_verbose |= VERBOSE_PATTERN;
5204                                 param->fp_max_depth = 0;
5205                         }
5206                         break;
5207 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5208                 case 'M':
5209                         fprintf(stderr, "warning: '-M' deprecated"
5210                                 ", use '--mdt-index' or '-m' instead\n");
5211 #endif
5212                 case 'm':
5213                         if (!(param->fp_verbose & VERBOSE_DETAIL))
5214                                 param->fp_max_depth = 0;
5215                         param->fp_verbose |= VERBOSE_MDTINDEX;
5216                         break;
5217                 case 'N':
5218                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5219                                 param->fp_verbose |= VERBOSE_MIRROR_COUNT;
5220                                 param->fp_max_depth = 0;
5221                         }
5222                         break;
5223                 case 'O':
5224                         if (param->fp_obd_uuid) {
5225                                 fprintf(stderr,
5226                                         "error: %s: only one obduuid allowed",
5227                                         argv[0]);
5228                                 return CMD_HELP;
5229                         }
5230                         param->fp_obd_uuid = (struct obd_uuid *)optarg;
5231                         break;
5232                 case 'p':
5233                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5234                                 param->fp_verbose |= VERBOSE_POOL;
5235                                 param->fp_max_depth = 0;
5236                         }
5237                         break;
5238                 case 'q':
5239                         param->fp_quiet++;
5240                         break;
5241                 case 'r':
5242                         param->fp_recursive = 1;
5243                         break;
5244                 case 'R':
5245                         param->fp_raw = 1;
5246                         break;
5247                 case 'S':
5248                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5249                                 param->fp_verbose |= VERBOSE_STRIPE_SIZE;
5250                                 param->fp_max_depth = 0;
5251                         }
5252                         break;
5253                 case 'v':
5254                         param->fp_verbose = VERBOSE_DEFAULT | VERBOSE_DETAIL;
5255                         break;
5256                 case 'y':
5257                         param->fp_yaml = 1;
5258                         break;
5259                 case 'z':
5260                         if (!(param->fp_verbose & VERBOSE_DETAIL)) {
5261                                 param->fp_verbose |= VERBOSE_EXT_SIZE;
5262                                 param->fp_max_depth = 0;
5263                         }
5264                         break;
5265                 default:
5266                         return CMD_HELP;
5267                 }
5268         }
5269
5270         if (pathstart == -1) {
5271                 fprintf(stderr, "error: %s: no filename|pathname\n",
5272                                 argv[0]);
5273                 return CMD_HELP;
5274         } else if (pathend == -1) {
5275                 /* no options */
5276                 pathend = argc;
5277         }
5278
5279         if (pathend > argc)
5280                 return CMD_HELP;
5281
5282         if (param->fp_recursive)
5283                 param->fp_max_depth = -1;
5284         else if (param->fp_verbose & VERBOSE_DETAIL)
5285                 param->fp_max_depth = 1;
5286
5287         if (!param->fp_verbose)
5288                 param->fp_verbose = VERBOSE_DEFAULT;
5289         if (param->fp_quiet)
5290                 param->fp_verbose = VERBOSE_OBJID;
5291
5292         do {
5293                 rc = llapi_getstripe(argv[pathstart], param);
5294         } while (++pathstart < pathend && !rc);
5295
5296         if (rc)
5297                 fprintf(stderr, "error: %s failed for %s.\n",
5298                         argv[0], argv[optind - 1]);
5299         return rc;
5300 }
5301
5302 static int lfs_tgts(int argc, char **argv)
5303 {
5304         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
5305         struct find_param param;
5306         int index = 0, rc=0;
5307
5308         if (argc > 2)
5309                 return CMD_HELP;
5310
5311         if (argc == 2 && !realpath(argv[1], path)) {
5312                 rc = -errno;
5313                 fprintf(stderr, "error: invalid path '%s': %s\n",
5314                         argv[1], strerror(-rc));
5315                 return rc;
5316         }
5317
5318         while (!llapi_search_mounts(path, index++, mntdir, NULL)) {
5319                 /* Check if we have a mount point */
5320                 if (mntdir[0] == '\0')
5321                         continue;
5322
5323                 memset(&param, 0, sizeof(param));
5324                 if (!strcmp(argv[0], "mdts"))
5325                         param.fp_get_lmv = 1;
5326
5327                 rc = llapi_ostlist(mntdir, &param);
5328                 if (rc) {
5329                         fprintf(stderr, "error: %s: failed on %s\n",
5330                                 argv[0], mntdir);
5331                 }
5332                 if (path[0] != '\0')
5333                         break;
5334                 memset(mntdir, 0, PATH_MAX);
5335         }
5336
5337         return rc;
5338 }
5339
5340 static int lfs_getstripe(int argc, char **argv)
5341 {
5342         struct find_param param = { 0 };
5343
5344         param.fp_max_depth = 1;
5345         return lfs_getstripe_internal(argc, argv, &param);
5346 }
5347
5348 /* functions */
5349 static int lfs_getdirstripe(int argc, char **argv)
5350 {
5351         struct find_param param = { 0 };
5352         struct option long_opts[] = {
5353         { .val = 'c',   .name = "mdt-count",    .has_arg = no_argument },
5354         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5355         { .val = 'H',   .name = "mdt-hash",     .has_arg = no_argument },
5356         { .val = 'i',   .name = "mdt-index",    .has_arg = no_argument },
5357         { .val = 'm',   .name = "mdt-index",    .has_arg = no_argument },
5358         { .val = 'O',   .name = "obd",          .has_arg = required_argument },
5359         { .val = 'r',   .name = "recursive",    .has_arg = no_argument },
5360         { .val = 'T',   .name = "mdt-count",    .has_arg = no_argument },
5361         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
5362         { .val = 'y',   .name = "yaml",         .has_arg = no_argument },
5363         { .name = NULL } };
5364         int c, rc;
5365
5366         param.fp_get_lmv = 1;
5367
5368         while ((c = getopt_long(argc, argv,
5369                                 "cDHimO:rtTvy", long_opts, NULL)) != -1)
5370         {
5371                 switch (c) {
5372                 case 'c':
5373                 case 'T':
5374                         param.fp_verbose |= VERBOSE_COUNT;
5375                         break;
5376                 case 'D':
5377                         param.fp_get_default_lmv = 1;
5378                         break;
5379                 case 'i':
5380                 case 'm':
5381                         param.fp_verbose |= VERBOSE_STRIPE_OFFSET;
5382                         break;
5383 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5384                 case 't':
5385                         fprintf(stderr, "warning: '-t' deprecated, "
5386                                 "use '--mdt-hash' or '-H' instead\n");
5387 #endif
5388                 case 'H':
5389                         param.fp_verbose |= VERBOSE_HASH_TYPE;
5390                         break;
5391                 case 'O':
5392                         if (param.fp_obd_uuid) {
5393                                 fprintf(stderr,
5394                                         "error: %s: only one obduuid allowed",
5395                                         argv[0]);
5396                                 return CMD_HELP;
5397                         }
5398                         param.fp_obd_uuid = (struct obd_uuid *)optarg;
5399                         break;
5400                 case 'r':
5401                         param.fp_recursive = 1;
5402                         break;
5403                 case 'v':
5404                         param.fp_verbose |= VERBOSE_DETAIL;
5405                         break;
5406                 case 'y':
5407                         param.fp_yaml = 1;
5408                         break;
5409                 default:
5410                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5411                                 progname, argv[0], argv[optind - 1]);
5412                         return CMD_HELP;
5413                 }
5414         }
5415
5416         if (optind >= argc)
5417                 return CMD_HELP;
5418
5419         if (param.fp_recursive)
5420                 param.fp_max_depth = -1;
5421
5422         if (!param.fp_verbose)
5423                 param.fp_verbose = VERBOSE_DEFAULT;
5424
5425         do {
5426                 rc = llapi_getstripe(argv[optind], &param);
5427         } while (++optind < argc && !rc);
5428
5429         if (rc)
5430                 fprintf(stderr, "error: %s failed for %s.\n",
5431                         argv[0], argv[optind - 1]);
5432         return rc;
5433 }
5434
5435 enum mntdf_flags {
5436         MNTDF_INODES    = 0x0001,
5437         MNTDF_COOKED    = 0x0002,
5438         MNTDF_LAZY      = 0x0004,
5439         MNTDF_VERBOSE   = 0x0008,
5440         MNTDF_SHOW      = 0x0010,
5441 };
5442
5443 #define COOK(value)                                             \
5444 ({                                                              \
5445         int radix = 0;                                          \
5446         while (value > 1024) {                                  \
5447                 value /= 1024;                                  \
5448                 radix++;                                        \
5449         }                                                       \
5450         radix;                                                  \
5451 })
5452 #define UUF     "%-20s"
5453 #define CSF     "%11s"
5454 #define CDF     "%11llu"
5455 #define HDF     "%8.1f%c"
5456 #define RSF     "%4s"
5457 #define RDF     "%3d%%"
5458
5459 static inline int obd_statfs_ratio(const struct obd_statfs *st, bool inodes)
5460 {
5461         double avail, used, ratio = 0;
5462
5463         if (inodes) {
5464                 avail = st->os_ffree;
5465                 used = st->os_files - st->os_ffree;
5466         } else {
5467                 avail = st->os_bavail;
5468                 used = st->os_blocks - st->os_bfree;
5469         }
5470         if (avail + used > 0)
5471                 ratio = used / (used + avail) * 100;
5472
5473         /* Round up to match df(1) usage percentage */
5474         return (ratio - (int)ratio) > 0 ? (int)(ratio + 1) : (int)ratio;
5475 }
5476
5477 /* This is to identify various problem states for "lfs df" if .osn_err = true,
5478  * so only show flags reflecting those states by default. Informational states
5479  * are only shown with "-v" and use lower-case names to distinguish them.
5480  * UNUSED[12] were for "EROFS = 30" until 1.6 but are now available for use.
5481  */
5482 static struct obd_statfs_state_names {
5483         enum obd_statfs_state   osn_state;
5484         const char              osn_name;
5485         bool                    osn_err;
5486 } oss_names[] = {
5487         { .osn_state = OS_STATE_DEGRADED,    .osn_name = 'D', .osn_err = true },
5488         { .osn_state = OS_STATE_READONLY,    .osn_name = 'R', .osn_err = true },
5489         { .osn_state = OS_STATE_NOPRECREATE, .osn_name = 'N', .osn_err = true },
5490         { .osn_state = OS_STATE_UNUSED1,     .osn_name = '?', .osn_err = true },
5491         { .osn_state = OS_STATE_UNUSED2,     .osn_name = '?', .osn_err = true },
5492         { .osn_state = OS_STATE_ENOSPC,      .osn_name = 'S', .osn_err = true },
5493         { .osn_state = OS_STATE_ENOINO,      .osn_name = 'I', .osn_err = true },
5494         { .osn_state = OS_STATE_SUM,         .osn_name = 'a', /* aggregate */ },
5495         { .osn_state = OS_STATE_NONROT,      .osn_name = 'f', /* flash */     },
5496 };
5497
5498 static int showdf(char *mntdir, struct obd_statfs *stat,
5499                   char *uuid, enum mntdf_flags flags,
5500                   char *type, int index, int rc)
5501 {
5502         long long avail, used, total;
5503         int ratio = 0;
5504         char *suffix = "KMGTPEZY";
5505         /* Note if we have >2^64 bytes/fs these buffers will need to be grown */
5506         char tbuf[3 * sizeof(__u64)];
5507         char ubuf[3 * sizeof(__u64)];
5508         char abuf[3 * sizeof(__u64)];
5509         char rbuf[3 * sizeof(__u64)];
5510
5511         if (!uuid || !stat)
5512                 return -EINVAL;
5513
5514         switch (rc) {
5515         case 0:
5516                 if (flags & MNTDF_INODES) {
5517                         avail = stat->os_ffree;
5518                         used = stat->os_files - stat->os_ffree;
5519                         total = stat->os_files;
5520                 } else {
5521                         int shift = flags & MNTDF_COOKED ? 0 : 10;
5522
5523                         avail = (stat->os_bavail * stat->os_bsize) >> shift;
5524                         used  = ((stat->os_blocks - stat->os_bfree) *
5525                                  stat->os_bsize) >> shift;
5526                         total = (stat->os_blocks * stat->os_bsize) >> shift;
5527                 }
5528
5529                 ratio = obd_statfs_ratio(stat, flags & MNTDF_INODES);
5530
5531                 if (flags & MNTDF_COOKED) {
5532                         int i;
5533                         double cook_val;
5534
5535                         cook_val = (double)total;
5536                         i = COOK(cook_val);
5537                         if (i > 0)
5538                                 snprintf(tbuf, sizeof(tbuf), HDF, cook_val,
5539                                          suffix[i - 1]);
5540                         else
5541                                 snprintf(tbuf, sizeof(tbuf), CDF, total);
5542
5543                         cook_val = (double)used;
5544                         i = COOK(cook_val);
5545                         if (i > 0)
5546                                 snprintf(ubuf, sizeof(ubuf), HDF, cook_val,
5547                                          suffix[i - 1]);
5548                         else
5549                                 snprintf(ubuf, sizeof(ubuf), CDF, used);
5550
5551                         cook_val = (double)avail;
5552                         i = COOK(cook_val);
5553                         if (i > 0)
5554                                 snprintf(abuf, sizeof(abuf), HDF, cook_val,
5555                                          suffix[i - 1]);
5556                         else
5557                                 snprintf(abuf, sizeof(abuf), CDF, avail);
5558                 } else {
5559                         snprintf(tbuf, sizeof(tbuf), CDF, total);
5560                         snprintf(ubuf, sizeof(tbuf), CDF, used);
5561                         snprintf(abuf, sizeof(tbuf), CDF, avail);
5562                 }
5563
5564                 sprintf(rbuf, RDF, ratio);
5565                 printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s",
5566                        uuid, tbuf, ubuf, abuf, rbuf, mntdir);
5567                 if (type)
5568                         printf("[%s:%d]", type, index);
5569
5570                 if (stat->os_state) {
5571                         uint32_t i;
5572
5573                         printf(" ");
5574                         for (i = 0; i < ARRAY_SIZE(oss_names); i++) {
5575                                 if (oss_names[i].osn_state & stat->os_state &&
5576                                     (oss_names[i].osn_err ||
5577                                      flags & MNTDF_VERBOSE))
5578                                         printf("%c", oss_names[i].osn_name);
5579                         }
5580                 }
5581
5582                 printf("\n");
5583                 break;
5584         case -ENODATA:
5585                 printf(UUF": inactive device\n", uuid);
5586                 break;
5587         default:
5588                 printf(UUF": %s\n", uuid, strerror(-rc));
5589                 break;
5590         }
5591
5592         return 0;
5593 }
5594
5595 struct ll_stat_type {
5596         int   st_op;
5597         char *st_name;
5598 };
5599
5600 #define LL_STATFS_MAX   LOV_MAX_STRIPE_COUNT
5601
5602 struct ll_statfs_data {
5603         int                     sd_index;
5604         struct obd_statfs       sd_st;
5605 };
5606
5607 struct ll_statfs_buf {
5608         int                     sb_count;
5609         struct ll_statfs_data   sb_buf[LL_STATFS_MAX];
5610 };
5611
5612 static int mntdf(char *mntdir, char *fsname, char *pool, enum mntdf_flags flags,
5613                  int ops, struct ll_statfs_buf *lsb)
5614 {
5615         struct obd_statfs stat_buf, sum = { .os_bsize = 1 };
5616         struct obd_uuid uuid_buf;
5617         char *poolname = NULL;
5618         struct ll_stat_type types[] = {
5619                 { .st_op = LL_STATFS_LMV,       .st_name = "MDT" },
5620                 { .st_op = LL_STATFS_LOV,       .st_name = "OST" },
5621                 { .st_name = NULL } };
5622         struct ll_stat_type *tp;
5623         __u64 ost_files = 0;
5624         __u64 ost_ffree = 0;
5625         __u32 index;
5626         __u32 type;
5627         int fd;
5628         int rc = 0;
5629         int rc2;
5630
5631         if (pool) {
5632                 poolname = strchr(pool, '.');
5633                 if (poolname != NULL) {
5634                         if (strncmp(fsname, pool, strlen(fsname))) {
5635                                 fprintf(stderr, "filesystem name incorrect\n");
5636                                 return -ENODEV;
5637                         }
5638                         poolname++;
5639                 } else
5640                         poolname = pool;
5641         }
5642
5643         fd = open(mntdir, O_RDONLY);
5644         if (fd < 0) {
5645                 rc = -errno;
5646                 fprintf(stderr, "%s: cannot open '%s': %s\n", progname, mntdir,
5647                         strerror(errno));
5648                 return rc;
5649         }
5650
5651         if (flags & MNTDF_SHOW) {
5652                 if (flags & MNTDF_INODES)
5653                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5654                                "UUID", "Inodes", "IUsed", "IFree",
5655                                "IUse%", "Mounted on");
5656                 else
5657                         printf(UUF" "CSF" "CSF" "CSF" "RSF" %-s\n",
5658                                "UUID",
5659                                flags & MNTDF_COOKED ? "bytes" : "1K-blocks",
5660                                "Used", "Available", "Use%", "Mounted on");
5661         }
5662
5663         for (tp = types; tp->st_name != NULL; tp++) {
5664                 bool have_ost = false;
5665
5666                 if (!(tp->st_op & ops))
5667                         continue;
5668
5669                 for (index = 0; ; index++) {
5670                         memset(&stat_buf, 0, sizeof(struct obd_statfs));
5671                         memset(&uuid_buf, 0, sizeof(struct obd_uuid));
5672                         type = flags & MNTDF_LAZY ?
5673                                 tp->st_op | LL_STATFS_NODELAY : tp->st_op;
5674                         rc2 = llapi_obd_fstatfs(fd, type, index,
5675                                                &stat_buf, &uuid_buf);
5676                         if (rc2 == -ENODEV)
5677                                 break;
5678                         if (rc2 == -EAGAIN)
5679                                 continue;
5680                         if (rc2 == -ENODATA) { /* Inactive device, OK. */
5681                                 if (!(flags & MNTDF_VERBOSE))
5682                                         continue;
5683                         } else if (rc2 < 0 && rc == 0) {
5684                                 rc = rc2;
5685                         }
5686
5687                         /* If we have OSTs then don't report MDT block counts.
5688                          * For MDT-only filesystems the expectation is that all
5689                          * layouts have a DoM component.  For filesystems with
5690                          * OSTs, files are not necessarily going to store data
5691                          * on MDTs, and MDT space is limited to a fraction of
5692                          * OST space, so don't include it in the summary.
5693                          */
5694                         if (tp->st_op == LL_STATFS_LOV && !have_ost) {
5695                                 have_ost = true;
5696                                 sum.os_blocks = 0;
5697                                 sum.os_bfree = 0;
5698                                 sum.os_bavail = 0;
5699                         }
5700
5701                         if (poolname && tp->st_op == LL_STATFS_LOV &&
5702                             llapi_search_ost(fsname, poolname,
5703                                              obd_uuid2str(&uuid_buf)) != 1)
5704                                 continue;
5705
5706                         /* the llapi_obd_statfs() call may have returned with
5707                          * an error, but if it filled in uuid_buf we will at
5708                          * lease use that to print out a message for that OBD.
5709                          * If we didn't get anything in the uuid_buf, then fill
5710                          * it in so that we can print an error message. */
5711                         if (uuid_buf.uuid[0] == '\0')
5712                                 snprintf(uuid_buf.uuid, sizeof(uuid_buf.uuid),
5713                                          "%s%04x", tp->st_name, index);
5714                         if (!rc && lsb) {
5715                                 lsb->sb_buf[lsb->sb_count].sd_index = index;
5716                                 lsb->sb_buf[lsb->sb_count].sd_st = stat_buf;
5717                                 lsb->sb_count++;
5718                         }
5719                         if (flags & MNTDF_SHOW)
5720                                 showdf(mntdir, &stat_buf,
5721                                        obd_uuid2str(&uuid_buf), flags,
5722                                        tp->st_name, index, rc2);
5723
5724                         if (rc2)
5725                                 continue;
5726
5727                         if (tp->st_op == LL_STATFS_LMV) {
5728                                 sum.os_ffree += stat_buf.os_ffree;
5729                                 sum.os_files += stat_buf.os_files;
5730                         } else /* if (tp->st_op == LL_STATFS_LOV) */ {
5731                                 ost_files += stat_buf.os_files;
5732                                 ost_ffree += stat_buf.os_ffree;
5733                         }
5734                         sum.os_blocks += stat_buf.os_blocks *
5735                                          stat_buf.os_bsize;
5736                         sum.os_bfree  += stat_buf.os_bfree *
5737                                          stat_buf.os_bsize;
5738                         sum.os_bavail += stat_buf.os_bavail *
5739                                          stat_buf.os_bsize;
5740                 }
5741         }
5742
5743         close(fd);
5744
5745         /* If we have _some_ OSTs, but don't have as many free objects on the
5746          * OST as inodes on the MDTs, reduce the reported number of inodes
5747          * to compensate, so that the "inodes in use" number is correct.
5748          * This should be kept in sync with ll_statfs_internal().
5749          */
5750         if (ost_files && ost_ffree < sum.os_ffree) {
5751                 sum.os_files = (sum.os_files - sum.os_ffree) + ost_ffree;
5752                 sum.os_ffree = ost_ffree;
5753         }
5754         if (flags & MNTDF_SHOW) {
5755                 printf("\n");
5756                 showdf(mntdir, &sum, "filesystem_summary:", flags, NULL, 0, 0);
5757                 printf("\n");
5758         }
5759
5760         return rc;
5761 }
5762
5763 /* functions */
5764 static int lfs_setdirstripe(int argc, char **argv)
5765 {
5766         char *dname;
5767         struct lfs_setstripe_args lsa = { 0 };
5768         struct llapi_stripe_param *param = NULL;
5769         __u32 mdts[LMV_MAX_STRIPE_COUNT] = { 0 };
5770         char *end;
5771         int c;
5772         char *mode_opt = NULL;
5773         bool default_stripe = false;
5774         bool delete = false;
5775         bool foreign_mode = false;
5776         mode_t mode = S_IRWXU | S_IRWXG | S_IRWXO;
5777         mode_t previous_mode = 0;
5778         char *xattr = NULL;
5779         __u32 type = LU_FOREIGN_TYPE_DAOS, flags = 0;
5780         struct option long_opts[] = {
5781         { .val = 'c',   .name = "count",        .has_arg = required_argument },
5782         { .val = 'c',   .name = "mdt-count",    .has_arg = required_argument },
5783         { .val = 'd',   .name = "delete",       .has_arg = no_argument },
5784         { .val = 'D',   .name = "default",      .has_arg = no_argument },
5785         { .val = 'D',   .name = "default_stripe", .has_arg = no_argument },
5786         { .val = LFS_LAYOUT_FLAGS_OPT,
5787                         .name = "flags",        .has_arg = required_argument },
5788         { .val = LFS_LAYOUT_FOREIGN_OPT,
5789                         .name = "foreign",      .has_arg = optional_argument},
5790         { .val = 'H',   .name = "mdt-hash",     .has_arg = required_argument },
5791 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 17, 53, 0)
5792         { .val = 'i',   .name = "mdt-index",    .has_arg = required_argument },
5793         { .val = 'i',   .name = "mdt",          .has_arg = required_argument },
5794 #else
5795 /* find { .val = 'l',   .name = "lazy",         .has_arg = no_argument }, */
5796         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
5797         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
5798 #endif
5799 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5800         { .val = 'i',   .name = "index",        .has_arg = required_argument },
5801 #endif
5802         { .val = 'o',   .name = "mode",         .has_arg = required_argument },
5803 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5804         { .val = 't',   .name = "hash-type",    .has_arg = required_argument },
5805 #endif
5806         { .val = 'T',   .name = "mdt-count",    .has_arg = required_argument },
5807 /* setstripe { .val = 'y', .name = "yaml",      .has_arg = no_argument }, */
5808         { .val = 'x',   .name = "xattr",        .has_arg = required_argument },
5809         { .name = NULL } };
5810         int result = 0;
5811
5812         setstripe_args_init(&lsa);
5813
5814         while ((c = getopt_long(argc, argv, "c:dDi:H:m:o:t:T:x:",
5815                                 long_opts, NULL)) >= 0) {
5816                 switch (c) {
5817                 case 0:
5818                         /* Long options. */
5819                         break;
5820                 case 'c':
5821                 case 'T':
5822                         lsa.lsa_stripe_count = strtoul(optarg, &end, 0);
5823                         if (*end != '\0') {
5824                                 fprintf(stderr,
5825                                         "%s %s: invalid stripe count '%s'\n",
5826                                         progname, argv[0], optarg);
5827                                 return CMD_HELP;
5828                         }
5829                         break;
5830                 case 'd':
5831                         delete = true;
5832                         default_stripe = true;
5833                         break;
5834                 case 'D':
5835                         default_stripe = true;
5836                         break;
5837                 case LFS_LAYOUT_FOREIGN_OPT:
5838                         if (optarg != NULL) {
5839                                 /* check pure numeric */
5840                                 type = strtoul(optarg, &end, 0);
5841                                 if (*end) {
5842                                         /* check name */
5843                                         type = check_foreign_type_name(optarg);
5844                                         if (type == LU_FOREIGN_TYPE_UNKNOWN) {
5845                                                 fprintf(stderr,
5846                                                         "%s %s: unknown foreign type '%s'\n",
5847                                                         progname, argv[0],
5848                                                         optarg);
5849                                                 return CMD_HELP;
5850                                         }
5851                                 }
5852                         }
5853                         foreign_mode = true;
5854                         break;
5855                 case LFS_LAYOUT_FLAGS_OPT:
5856                         flags = strtoul(optarg, &end, 16);
5857                         if (*end != '\0') {
5858                                 fprintf(stderr,
5859                                         "%s %s: bad flags '%s'\n",
5860                                         progname, argv[0], optarg);
5861                                 return CMD_HELP;
5862                         }
5863                         break;
5864 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5865                 case 't':
5866                         fprintf(stderr, "warning: '--hash-type' and '-t' "
5867                               "deprecated, use '--mdt-hash' or '-H' instead\n");
5868 #endif
5869                 case 'H':
5870                         lsa.lsa_pattern = check_hashtype(optarg);
5871                         if (lsa.lsa_pattern == 0) {
5872                                 fprintf(stderr,
5873                                         "%s %s: bad stripe hash type '%s'\n",
5874                                         progname, argv[0], optarg);
5875                                 return CMD_HELP;
5876                         }
5877                         break;
5878                 case 'i':
5879 #if LUSTRE_VERSION_CODE >= OBD_OCD_VERSION(2, 17, 53, 0)
5880                 case 'm':
5881 #endif
5882 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
5883                         if (strcmp(argv[optind - 1], "--index") == 0)
5884                                 fprintf(stderr,
5885                                         "%s %s: warning: '--index' deprecated, use '--mdt-index' instead\n",
5886                                         progname, argv[0]);
5887 #endif
5888                         lsa.lsa_nr_tgts = parse_targets(mdts,
5889                                                 sizeof(mdts) / sizeof(__u32),
5890                                                 lsa.lsa_nr_tgts, optarg, NULL);
5891                         if (lsa.lsa_nr_tgts < 0) {
5892                                 fprintf(stderr,
5893                                         "%s %s: invalid MDT target(s) '%s'\n",
5894                                         progname, argv[0], optarg);
5895                                 return CMD_HELP;
5896                         }
5897
5898                         lsa.lsa_tgts = mdts;
5899                         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
5900                                 lsa.lsa_stripe_off = mdts[0];
5901                         break;
5902 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(2, 15, 53, 0)
5903                 case 'm':
5904                         fprintf(stderr, "warning: '-m' is deprecated, "
5905                                 "use '--mode' or '-o' instead\n");
5906 #endif
5907                 case 'o':
5908                         mode_opt = optarg;
5909                         break;
5910                 case 'x':
5911                         xattr = optarg;
5912                         break;
5913                 default:
5914                         fprintf(stderr, "%s %s: unrecognized option '%s'\n",
5915                                 progname, argv[0], argv[optind - 1]);
5916                         return CMD_HELP;
5917                 }
5918         }
5919
5920         if (optind == argc) {
5921                 fprintf(stderr, "%s %s: DIR must be specified\n",
5922                         progname, argv[0]);
5923                 return CMD_HELP;
5924         }
5925
5926         if (xattr && !foreign_mode) {
5927                 /* only print a warning as this is armless and will be
5928                  * ignored
5929                  */
5930                 fprintf(stderr,
5931                         "%s %s: xattr has been specified for non-foreign layout\n",
5932                         progname, argv[0]);
5933         } else if (foreign_mode && !xattr) {
5934                 fprintf(stderr,
5935                         "%s %s: xattr must be provided in foreign mode\n",
5936                         progname, argv[0]);
5937                 return CMD_HELP;
5938         }
5939
5940         if (foreign_mode && (delete || default_stripe || lsa.lsa_nr_tgts ||
5941             lsa.lsa_tgts || setstripe_args_specified(&lsa))) {
5942                 fprintf(stderr,
5943                         "%s %s: only --xattr/--flags/--mode options are valid with --foreign\n",
5944                         progname, argv[0]);
5945                 return CMD_HELP;
5946         }
5947
5948         if (!delete && lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT &&
5949             lsa.lsa_stripe_count == LLAPI_LAYOUT_DEFAULT && !foreign_mode) {
5950                 fprintf(stderr,
5951                         "%s %s: stripe offset and count must be specified\n",
5952                         progname, argv[0]);
5953                 return CMD_HELP;
5954         }
5955
5956         if (delete &&
5957             (lsa.lsa_stripe_off != LLAPI_LAYOUT_DEFAULT ||
5958              lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)) {
5959                 fprintf(stderr,
5960                         "%s %s: cannot specify -d with -c or -i options\n",
5961                         progname, argv[0]);
5962                 return CMD_HELP;
5963         }
5964
5965         if (mode_opt != NULL) {
5966                 mode = strtoul(mode_opt, &end, 8);
5967                 if (*end != '\0') {
5968                         fprintf(stderr,
5969                                 "%s %s: bad MODE '%s'\n",
5970                                 progname, argv[0], mode_opt);
5971                         return CMD_HELP;
5972                 }
5973                 previous_mode = umask(0);
5974         }
5975
5976         /* foreign LMV/dir case */
5977         if (foreign_mode) {
5978                 if (argc > optind + 1) {
5979                         fprintf(stderr,
5980                                 "%s %s: cannot specify multiple foreign dirs\n",
5981                                 progname, argv[0]);
5982                         return CMD_HELP;
5983                 }
5984
5985                 dname = argv[optind];
5986                 result = llapi_dir_create_foreign(dname, mode, type, flags,
5987                                                   xattr);
5988                 if (result != 0)
5989                         fprintf(stderr,
5990                                 "%s mkdir: can't create foreign dir '%s': %s\n",
5991                                 progname, dname, strerror(-result));
5992                 return result;
5993         }
5994
5995         /*
5996          * initialize stripe parameters, in case param is converted to specific,
5997          * i.e, 'lfs mkdir -i -1 -c N', always allocate space for lsp_tgts.
5998          */
5999         param = calloc(1, offsetof(typeof(*param),
6000                        lsp_tgts[lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT ?
6001                                 lsa.lsa_stripe_count : lsa.lsa_nr_tgts]));
6002         if (param == NULL) {
6003                 fprintf(stderr,
6004                         "%s %s: cannot allocate memory for parameters: %s\n",
6005                         progname, argv[0], strerror(ENOMEM));
6006                 return CMD_HELP;
6007         }
6008
6009         if (lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT)
6010                 param->lsp_stripe_count = lsa.lsa_stripe_count;
6011         if (lsa.lsa_stripe_off == LLAPI_LAYOUT_DEFAULT)
6012                 param->lsp_stripe_offset = -1;
6013         else
6014                 param->lsp_stripe_offset = lsa.lsa_stripe_off;
6015         if (lsa.lsa_pattern != LLAPI_LAYOUT_RAID0)
6016                 param->lsp_stripe_pattern = lsa.lsa_pattern;
6017         else
6018                 param->lsp_stripe_pattern = LMV_HASH_TYPE_DEFAULT;
6019         param->lsp_pool = lsa.lsa_pool_name;
6020         param->lsp_is_specific = false;
6021         if (lsa.lsa_nr_tgts > 1) {
6022                 if (lsa.lsa_stripe_count > 0 &&
6023                     lsa.lsa_stripe_count != LLAPI_LAYOUT_DEFAULT &&
6024                     lsa.lsa_stripe_count != lsa.lsa_nr_tgts) {
6025                         fprintf(stderr,
6026                                 "error: %s: stripe count %lld doesn't match the number of MDTs: %d\n",
6027                                 argv[0], lsa.lsa_stripe_count,
6028                                 lsa.lsa_nr_tgts);
6029                         free(param);
6030                         return CMD_HELP;
6031                 }
6032
6033                 param->lsp_is_specific = true;
6034                 param->lsp_stripe_count = lsa.lsa_nr_tgts;
6035                 memcpy(param->lsp_tgts, mdts, sizeof(*mdts) * lsa.lsa_nr_tgts);
6036         }
6037
6038         dname = argv[optind];
6039         do {
6040                 if (default_stripe) {
6041                         result = llapi_dir_set_default_lmv(dname, param);
6042                         if (result)
6043                                 fprintf(stderr,
6044                                         "%s setdirstripe: cannot set default stripe on dir '%s': %s\n",
6045                                         progname, dname, strerror(-result));
6046                         continue;
6047                 }
6048
6049                 result = llapi_dir_create(dname, mode, param);
6050                 if (result)
6051                         fprintf(stderr,
6052                                 "%s setdirstripe: cannot create dir '%s': %s\n",
6053                                 progname, dname, strerror(-result));
6054         } while (!result && (dname = argv[++optind]));
6055
6056         if (mode_opt != NULL)
6057                 umask(previous_mode);
6058
6059         free(param);
6060         return result;
6061 }
6062
6063 /* functions */
6064 static int lfs_rmentry(int argc, char **argv)
6065 {
6066         char *dname;
6067         int   index;
6068         int   result = 0;
6069
6070         if (argc <= 1) {
6071                 fprintf(stderr, "error: %s: missing dirname\n",
6072                         argv[0]);
6073                 return CMD_HELP;
6074         }
6075
6076         index = 1;
6077         dname = argv[index];
6078         while (dname != NULL) {
6079                 result = llapi_direntry_remove(dname);
6080                 if (result) {
6081                         fprintf(stderr, "error: %s: remove dir entry '%s' "
6082                                 "failed\n", argv[0], dname);
6083                         break;
6084                 }
6085                 dname = argv[++index];
6086         }
6087         return result;
6088 }
6089
6090 static int lfs_mv(int argc, char **argv)
6091 {
6092         struct lmv_user_md lmu = { LMV_USER_MAGIC };
6093         struct find_param param = {
6094                 .fp_max_depth = -1,
6095                 .fp_mdt_index = -1,
6096         };
6097         char *end;
6098         int c;
6099         int rc = 0;
6100         struct option long_opts[] = {
6101         { .val = 'm',   .name = "mdt",          .has_arg = required_argument },
6102         { .val = 'm',   .name = "mdt-index",    .has_arg = required_argument },
6103         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
6104         { .name = NULL } };
6105
6106         while ((c = getopt_long(argc, argv, "m:M:v", long_opts, NULL)) != -1) {
6107                 switch (c) {
6108 #if LUSTRE_VERSION_CODE < OBD_OCD_VERSION(3, 0, 53, 0)
6109                 case 'M':
6110                         fprintf(stderr, "warning: '-M' deprecated"
6111                                 ", use '--mdt-index' or '-m' instead\n");
6112 #endif
6113                 case 'm':
6114                         lmu.lum_stripe_offset = strtoul(optarg, &end, 0);
6115                         if (*end != '\0') {
6116                                 fprintf(stderr, "%s mv: bad MDT index '%s'\n",
6117                                         progname, optarg);
6118                                 return CMD_HELP;
6119                         }
6120                         break;
6121                 case 'v':
6122                         param.fp_verbose = VERBOSE_DETAIL;
6123                         break;
6124                 default:
6125                         fprintf(stderr, "%s mv: unrecognized option '%s'\n",
6126                                 progname, argv[optind - 1]);
6127                         return CMD_HELP;
6128                 }
6129         }
6130
6131         if (lmu.lum_stripe_offset == LMV_OFFSET_DEFAULT) {
6132                 fprintf(stderr, "%s mv: MDT index must be specified\n",
6133                         progname);
6134                 return CMD_HELP;
6135         }
6136
6137         if (optind >= argc) {
6138                 fprintf(stderr, "%s mv: DIR must be specified\n", progname);
6139                 return CMD_HELP;
6140         }
6141
6142
6143         /* initialize migrate mdt parameters */
6144         param.fp_lmv_md = &lmu;
6145         param.fp_migrate = 1;
6146         rc = llapi_migrate_mdt(argv[optind], &param);
6147         if (rc != 0)
6148                 fprintf(stderr, "%s mv: cannot migrate '%s' to MDT%04x: %s\n",
6149                         progname, argv[optind], param.fp_mdt_index,
6150                         strerror(-rc));
6151         return rc;
6152 }
6153
6154 static int lfs_osts(int argc, char **argv)
6155 {
6156         return lfs_tgts(argc, argv);
6157 }
6158
6159 static int lfs_mdts(int argc, char **argv)
6160 {
6161         return lfs_tgts(argc, argv);
6162 }
6163
6164 static int lfs_df(int argc, char **argv)
6165 {
6166         char mntdir[PATH_MAX] = {'\0'}, path[PATH_MAX] = {'\0'};
6167         enum mntdf_flags flags = MNTDF_SHOW;
6168         int ops = LL_STATFS_LMV | LL_STATFS_LOV;
6169         int c, rc = 0, index = 0;
6170         char fsname[PATH_MAX] = "", *pool_name = NULL;
6171         struct option long_opts[] = {
6172         { .val = 'h',   .name = "human-readable",
6173                                                 .has_arg = no_argument },
6174         { .val = 'i',   .name = "inodes",       .has_arg = no_argument },
6175         { .val = 'l',   .name = "lazy",         .has_arg = no_argument },
6176         { .val = 'p',   .name = "pool",         .has_arg = required_argument },
6177         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
6178         { .name = NULL} };
6179
6180         while ((c = getopt_long(argc, argv, "hilp:v", long_opts, NULL)) != -1) {
6181                 switch (c) {
6182                 case 'h':
6183                         flags |= MNTDF_COOKED;
6184                         break;
6185                 case 'i':
6186                         flags |= MNTDF_INODES;
6187                         break;
6188                 case 'l':
6189                         flags |= MNTDF_LAZY;
6190                         break;
6191                 case 'p':
6192                         pool_name = optarg;
6193                         break;
6194                 case 'v':
6195                         flags |= MNTDF_VERBOSE;
6196                         break;
6197                 default:
6198                         return CMD_HELP;
6199                 }
6200         }
6201         if (optind < argc && !realpath(argv[optind], path)) {
6202                 rc = -errno;
6203                 fprintf(stderr, "error: invalid path '%s': %s\n",
6204                         argv[optind], strerror(-rc));
6205                 return rc;
6206         }
6207
6208         while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
6209                 /* Check if we have a mount point */
6210                 if (mntdir[0] == '\0')
6211                         continue;
6212
6213                 rc = mntdf(mntdir, fsname, pool_name, flags, ops, NULL);
6214                 if (rc || path[0] != '\0')
6215                         break;
6216                 fsname[0] = '\0'; /* avoid matching in next loop */
6217                 mntdir[0] = '\0'; /* avoid matching in next loop */
6218         }
6219
6220         return rc;
6221 }
6222
6223 static int print_instance(const char *mntdir, char *buf, size_t buflen,
6224                           bool opt_instance, bool opt_fsname, bool opt_mntdir)
6225 {
6226         int rc = 0;
6227
6228         if (opt_fsname == opt_instance) { /* both true or both false */
6229                 rc = llapi_getname(mntdir, buf, buflen);
6230         } else if (opt_fsname) {
6231                 /* llapi_search_mounts() fills @buf with fsname, but that is not
6232                  * called if explicit paths are specified on the command-line
6233                  */
6234                 if (buf[0] == '\0')
6235                         rc = llapi_get_fsname(mntdir, buf, buflen);
6236         } else /* if (opt_instance) */ {
6237                 rc = llapi_get_instance(mntdir, buf, buflen);
6238         }
6239
6240         if (rc < 0) {
6241                 fprintf(stderr, "cannot get instance for '%s': %s\n",
6242                         mntdir, strerror(-rc));
6243                 return rc;
6244         }
6245
6246         if (opt_mntdir)
6247                 printf("%s %s\n", buf, mntdir);
6248         else
6249                 printf("%s\n", buf);
6250
6251         return 0;
6252 }
6253
6254 static int lfs_getname(int argc, char **argv)
6255 {
6256         struct option long_opts[] = {
6257         { .val = 'h',   .name = "help",         .has_arg = no_argument },
6258         { .val = 'i',   .name = "instance",     .has_arg = no_argument },
6259         { .val = 'n',   .name = "fsname",       .has_arg = no_argument },
6260         { .name = NULL} };
6261         bool opt_instance = false, opt_fsname = false;
6262         char fsname[PATH_MAX] = "";
6263         int rc = 0, rc2, c;
6264
6265         while ((c = getopt_long(argc, argv, "hin", long_opts, NULL)) != -1) {
6266                 switch (c) {
6267                 case 'i':
6268                         opt_instance = true;
6269                         break;
6270                 case 'n':
6271                         opt_fsname = true;
6272                         break;
6273                 case 'h':
6274                 default:
6275                         return CMD_HELP;
6276                 }
6277         }
6278
6279         if (optind == argc) { /* no paths specified, get all paths. */
6280                 char mntdir[PATH_MAX] = "", path[PATH_MAX] = "";
6281                 int index = 0;
6282
6283                 while (!llapi_search_mounts(path, index++, mntdir, fsname)) {
6284                         rc2 = print_instance(mntdir, fsname, sizeof(fsname),
6285                                              opt_instance, opt_fsname, true);
6286                         if (!rc)
6287                                 rc = rc2;
6288                         path[0] = fsname[0] = mntdir[0] = '\0';
6289                 }
6290         } else { /* paths specified, only attempt to search these. */
6291                 bool opt_mntdir;
6292
6293                 /* if only one path is given, print only requested info */
6294                 opt_mntdir = argc - optind > 1 || (opt_instance == opt_fsname);
6295
6296                 for (; optind < argc; optind++) {
6297                         rc2 = print_instance(argv[optind], fsname,
6298                                              sizeof(fsname), opt_instance,
6299                                              opt_fsname, opt_mntdir);
6300                         if (!rc)
6301                                 rc = rc2;
6302                         fsname[0] = '\0';
6303                 }
6304         }
6305
6306         return rc;
6307 }
6308
6309 static int lfs_check(int argc, char **argv)
6310 {
6311         char mntdir[PATH_MAX] = {'\0'};
6312         int num_types = 1;
6313         char *obd_types[3];
6314         char obd_type1[4];
6315         char obd_type2[4];
6316         char obd_type3[4];
6317         int rc;
6318
6319         if (argc != 2) {
6320                 fprintf(stderr, "%s check: server type must be specified\n",
6321                         progname);
6322                 return CMD_HELP;
6323         }
6324
6325         obd_types[0] = obd_type1;
6326         obd_types[1] = obd_type2;
6327         obd_types[2] = obd_type3;
6328
6329         if (strcmp(argv[1], "osts") == 0) {
6330                 strcpy(obd_types[0], "osc");
6331         } else if (strcmp(argv[1], "mdts") == 0 ||
6332                    strcmp(argv[1], "mds") == 0) {
6333                 strcpy(obd_types[0], "mdc");
6334         } else if (strcmp(argv[1], "mgts") == 0) {
6335                 strcpy(obd_types[0], "mgc");
6336         } else if (strcmp(argv[1], "all") == 0 ||
6337                    strcmp(argv[1], "servers") == 0) {
6338                 num_types = 3;
6339                 strcpy(obd_types[0], "osc");
6340                 strcpy(obd_types[1], "mdc");
6341                 strcpy(obd_types[2], "mgc");
6342         } else {
6343                 fprintf(stderr, "%s check: unrecognized option '%s'\n",
6344                         progname, argv[1]);
6345                 return CMD_HELP;
6346         }
6347
6348         rc = llapi_search_mounts(NULL, 0, mntdir, NULL);
6349         if (rc < 0 || mntdir[0] == '\0') {
6350                 fprintf(stderr,
6351                         "%s check: cannot find mounted Lustre filesystem: %s\n",
6352                         progname, (rc < 0) ? strerror(-rc) : strerror(ENODEV));
6353                 return rc;
6354         }
6355
6356         rc = llapi_target_check(num_types, obd_types, mntdir);
6357         if (rc)
6358                 fprintf(stderr, "%s check: cannot check target '%s': %s\n",
6359                         progname, argv[1], strerror(-rc));
6360
6361         return rc;
6362
6363 }
6364
6365 #ifdef HAVE_SYS_QUOTA_H
6366 #define ARG2INT(nr, str, msg)                                           \
6367 do {                                                                    \
6368         char *endp;                                                     \
6369         nr = strtol(str, &endp, 0);                                     \
6370         if (*endp != '\0') {                                            \
6371                 fprintf(stderr, "%s: bad %s '%s'\n",                    \
6372                         progname, msg, str);                            \
6373                 return CMD_HELP;                                        \
6374         }                                                               \
6375 } while (0)
6376
6377 #define ADD_OVERFLOW(a,b) ((a + b) < a) ? (a = ULONG_MAX) : (a = a + b)
6378
6379 /* Convert format time string "XXwXXdXXhXXmXXs" into seconds value
6380  * returns the value or ULONG_MAX on integer overflow or incorrect format
6381  * Notes:
6382  *        1. the order of specifiers is arbitrary (may be: 5w3s or 3s5w)
6383  *        2. specifiers may be encountered multiple times (2s3s is 5 seconds)
6384  *        3. empty integer value is interpreted as 0
6385  */
6386 static unsigned long str2sec(const char* timestr)
6387 {
6388         const char spec[] = "smhdw";
6389         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
6390         unsigned long val = 0;
6391         char *tail;
6392
6393         if (strpbrk(timestr, spec) == NULL) {
6394                 /* no specifiers inside the time string,
6395                    should treat it as an integer value */
6396                 val = strtoul(timestr, &tail, 10);
6397                 return *tail ? ULONG_MAX : val;
6398         }
6399
6400         /* format string is XXwXXdXXhXXmXXs */
6401         while (*timestr) {
6402                 unsigned long v;
6403                 int ind;
6404                 char* ptr;
6405
6406                 v = strtoul(timestr, &tail, 10);
6407                 if (v == ULONG_MAX || *tail == '\0')
6408                         /* value too large (ULONG_MAX or more)
6409                            or missing specifier */
6410                         goto error;
6411
6412                 ptr = strchr(spec, *tail);
6413                 if (ptr == NULL)
6414                         /* unknown specifier */
6415                         goto error;
6416
6417                 ind = ptr - spec;
6418
6419                 /* check if product will overflow the type */
6420                 if (!(v < ULONG_MAX / mult[ind]))
6421                         goto error;
6422
6423                 ADD_OVERFLOW(val, mult[ind] * v);
6424                 if (val == ULONG_MAX)
6425                         goto error;
6426
6427                 timestr = tail + 1;
6428         }
6429
6430         return val;
6431
6432 error:
6433         return ULONG_MAX;
6434 }
6435
6436 #define ARG2ULL(nr, str, def_units)                                     \
6437 do {                                                                    \
6438         unsigned long long limit, units = def_units;                    \
6439         int rc;                                                         \
6440                                                                         \
6441         rc = llapi_parse_size(str, &limit, &units, 1);                  \
6442         if (rc < 0) {                                                   \
6443                 fprintf(stderr, "%s: invalid limit '%s'\n",             \
6444                         progname, str);                                 \
6445                 return CMD_HELP;                                        \
6446         }                                                               \
6447         nr = limit;                                                     \
6448 } while (0)
6449
6450 static inline int has_times_option(int argc, char **argv)
6451 {
6452         int i;
6453
6454         for (i = 1; i < argc; i++)
6455                 if (!strcmp(argv[i], "-t"))
6456                         return 1;
6457
6458         return 0;
6459 }
6460
6461 int lfs_setquota_times(int argc, char **argv)
6462 {
6463         int c, rc;
6464         struct if_quotactl qctl;
6465         char *mnt, *obd_type = (char *)qctl.obd_type;
6466         struct obd_dqblk *dqb = &qctl.qc_dqblk;
6467         struct obd_dqinfo *dqi = &qctl.qc_dqinfo;
6468         struct option long_opts[] = {
6469         { .val = 'b',   .name = "block-grace",  .has_arg = required_argument },
6470         { .val = 'g',   .name = "group",        .has_arg = no_argument },
6471         { .val = 'i',   .name = "inode-grace",  .has_arg = required_argument },
6472         { .val = 'p',   .name = "projid",       .has_arg = no_argument },
6473         { .val = 't',   .name = "times",        .has_arg = no_argument },
6474         { .val = 'u',   .name = "user",         .has_arg = no_argument },
6475         { .name = NULL } };
6476         int qtype;
6477
6478         memset(&qctl, 0, sizeof(qctl));
6479         qctl.qc_cmd  = LUSTRE_Q_SETINFO;
6480         qctl.qc_type = ALLQUOTA;
6481
6482         while ((c = getopt_long(argc, argv, "b:gi:ptu",
6483                                 long_opts, NULL)) != -1) {
6484                 switch (c) {
6485                 case 'u':
6486                         qtype = USRQUOTA;
6487                         goto quota_type;
6488                 case 'g':
6489                         qtype = GRPQUOTA;
6490                         goto quota_type;
6491                 case 'p':
6492                         qtype = PRJQUOTA;
6493 quota_type:
6494                         if (qctl.qc_type != ALLQUOTA) {
6495                                 fprintf(stderr, "error: -u/g/p can't be used "
6496                                                 "more than once\n");
6497                                 return CMD_HELP;
6498                         }
6499                         qctl.qc_type = qtype;
6500                         break;
6501                 case 'b':
6502                         if (strncmp(optarg, NOTIFY_GRACE,
6503                                     strlen(NOTIFY_GRACE)) == 0) {
6504                                 dqi->dqi_bgrace = NOTIFY_GRACE_TIME;
6505                         } else {
6506                                 dqi->dqi_bgrace = str2sec(optarg);
6507                                 if (dqi->dqi_bgrace >= NOTIFY_GRACE_TIME) {
6508                                         fprintf(stderr, "error: bad "
6509                                                 "block-grace: %s\n", optarg);
6510                                         return CMD_HELP;
6511                                 }
6512                         }
6513                         dqb->dqb_valid |= QIF_BTIME;
6514                         break;
6515                 case 'i':
6516                         if (strncmp(optarg, NOTIFY_GRACE,
6517                                     strlen(NOTIFY_GRACE)) == 0) {
6518                                 dqi->dqi_igrace = NOTIFY_GRACE_TIME;
6519                         } else {
6520                                 dqi->dqi_igrace = str2sec(optarg);
6521                                 if (dqi->dqi_igrace >= NOTIFY_GRACE_TIME) {
6522                                         fprintf(stderr, "error: bad "
6523                                                 "inode-grace: %s\n", optarg);
6524                                         return CMD_HELP;
6525                                 }
6526                         }
6527                         dqb->dqb_valid |= QIF_ITIME;
6528                         break;
6529                 case 't': /* Yes, of course! */
6530                         break;
6531                 /* getopt prints error message for us when opterr != 0 */
6532                 default:
6533                         return CMD_HELP;
6534                 }
6535         }
6536
6537         if (qctl.qc_type == ALLQUOTA) {
6538                 fprintf(stderr, "error: neither -u, -g nor -p specified\n");
6539                 return CMD_HELP;
6540         }
6541
6542         if (optind != argc - 1) {
6543                 fprintf(stderr, "error: unexpected parameters encountered\n");
6544                 return CMD_HELP;
6545         }
6546
6547         mnt = argv[optind];
6548         rc = llapi_quotactl(mnt, &qctl);
6549         if (rc) {
6550                 if (*obd_type)
6551                         fprintf(stderr, "%s %s ", obd_type,
6552                                 obd_uuid2str(&qctl.obd_uuid));
6553                 fprintf(stderr, "setquota failed: %s\n", strerror(-rc));
6554                 return rc;
6555         }
6556
6557         return 0;
6558 }
6559
6560 #define BSLIMIT (1 << 0)
6561 #define BHLIMIT (1 << 1)
6562 #define ISLIMIT (1 << 2)
6563 #define IHLIMIT (1 << 3)
6564
6565 int lfs_setquota(int argc, char **argv)
6566 {
6567         int c, rc = 0;
6568         struct if_quotactl qctl;
6569         char *mnt, *obd_type = (char *)qctl.obd_type;
6570         struct obd_dqblk *dqb = &qctl.qc_dqblk;
6571         struct option long_opts[] = {
6572         { .val = 'b',   .name = "block-softlimit",
6573                                                 .has_arg = required_argument },
6574         { .val = 'B',   .name = "block-hardlimit",
6575                                                 .has_arg = required_argument },
6576         { .val = 'd',   .name = "default",      .has_arg = no_argument },
6577         { .val = 'g',   .name = "group",        .has_arg = required_argument },
6578         { .val = 'G',   .name = "default-grp",  .has_arg = no_argument },
6579         { .val = 'i',   .name = "inode-softlimit",
6580                                                 .has_arg = required_argument },
6581         { .val = 'I',   .name = "inode-hardlimit",
6582                                                 .has_arg = required_argument },
6583         { .val = 'p',   .name = "projid",       .has_arg = required_argument },
6584         { .val = 'P',   .name = "default-prj",  .has_arg = no_argument },
6585         { .val = 'u',   .name = "user",         .has_arg = required_argument },
6586         { .val = 'U',   .name = "default-usr",  .has_arg = no_argument },
6587         { .name = NULL } };
6588         unsigned limit_mask = 0;
6589         char *endptr;
6590         bool use_default = false;
6591         int qtype;
6592
6593         if (has_times_option(argc, argv))
6594                 return lfs_setquota_times(argc, argv);
6595
6596         memset(&qctl, 0, sizeof(qctl));
6597         qctl.qc_cmd  = LUSTRE_Q_SETQUOTA;
6598         qctl.qc_type = ALLQUOTA; /* ALLQUOTA makes no sense for setquota,
6599                                   * so it can be used as a marker that qc_type
6600                                   * isn't reinitialized from command line */
6601
6602         while ((c = getopt_long(argc, argv, "b:B:dg:Gi:I:p:Pu:U",
6603                 long_opts, NULL)) != -1) {
6604                 switch (c) {
6605                 case 'U':
6606                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6607                         qtype = USRQUOTA;
6608                         qctl.qc_id = 0;
6609                         goto quota_type_def;
6610                 case 'u':
6611                         qtype = USRQUOTA;
6612                         rc = name2uid(&qctl.qc_id, optarg);
6613                         goto quota_type;
6614                 case 'G':
6615                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6616                         qtype = GRPQUOTA;
6617                         qctl.qc_id = 0;
6618                         goto quota_type_def;
6619                 case 'g':
6620                         qtype = GRPQUOTA;
6621                         rc = name2gid(&qctl.qc_id, optarg);
6622                         goto quota_type;
6623                 case 'P':
6624                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6625                         qtype = PRJQUOTA;
6626                         qctl.qc_id = 0;
6627                         goto quota_type_def;
6628                 case 'p':
6629                         qtype = PRJQUOTA;
6630                         rc = name2projid(&qctl.qc_id, optarg);
6631 quota_type:
6632                         if (rc) {
6633                                 qctl.qc_id = strtoul(optarg, &endptr, 10);
6634                                 if (*endptr != '\0') {
6635                                         fprintf(stderr, "%s setquota: invalid"
6636                                                 " id '%s'\n", progname, optarg);
6637                                         return -1;
6638                                 }
6639                         }
6640
6641                         if (qctl.qc_id == 0) {
6642                                 fprintf(stderr, "%s setquota: can't set quota"
6643                                         " for root usr/group/project.\n",
6644                                         progname);
6645                                 return -1;
6646                         }
6647
6648 quota_type_def:
6649                         if (qctl.qc_type != ALLQUOTA) {
6650                                 fprintf(stderr,
6651                                         "%s setquota: only one of -u, -U, -g,"
6652                                         " -G, -p or -P may be specified\n",
6653                                         progname);
6654                                 return CMD_HELP;
6655                         }
6656                         qctl.qc_type = qtype;
6657                         break;
6658                 case 'd':
6659                         qctl.qc_cmd = LUSTRE_Q_SETDEFAULT;
6660                         use_default = true;
6661                         break;
6662                 case 'b':
6663                         ARG2ULL(dqb->dqb_bsoftlimit, optarg, 1024);
6664                         dqb->dqb_bsoftlimit >>= 10;
6665                         limit_mask |= BSLIMIT;
6666                         if (dqb->dqb_bsoftlimit &&
6667                             dqb->dqb_bsoftlimit <= 1024) /* <= 1M? */
6668                                 fprintf(stderr,
6669                                         "%s setquota: warning: block softlimit '%llu' smaller than minimum qunit size\n"
6670                                         "See '%s help setquota' or Lustre manual for details\n",
6671                                         progname,
6672                                         (unsigned long long)dqb->dqb_bsoftlimit,
6673                                         progname);
6674                         break;
6675                 case 'B':
6676                         ARG2ULL(dqb->dqb_bhardlimit, optarg, 1024);
6677                         dqb->dqb_bhardlimit >>= 10;
6678                         limit_mask |= BHLIMIT;
6679                         if (dqb->dqb_bhardlimit &&
6680                             dqb->dqb_bhardlimit <= 1024) /* <= 1M? */
6681                                 fprintf(stderr,
6682                                         "%s setquota: warning: block hardlimit '%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_bhardlimit,
6686                                         progname);
6687                         break;
6688                 case 'i':
6689                         ARG2ULL(dqb->dqb_isoftlimit, optarg, 1);
6690                         limit_mask |= ISLIMIT;
6691                         if (dqb->dqb_isoftlimit &&
6692                             dqb->dqb_isoftlimit <= 1024) /* <= 1K inodes? */
6693                                 fprintf(stderr,
6694                                         "%s setquota: warning: inode softlimit '%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_isoftlimit,
6698                                         progname);
6699                         break;
6700                 case 'I':
6701                         ARG2ULL(dqb->dqb_ihardlimit, optarg, 1);
6702                         limit_mask |= IHLIMIT;
6703                         if (dqb->dqb_ihardlimit &&
6704                             dqb->dqb_ihardlimit <= 1024) /* <= 1K inodes? */
6705                                 fprintf(stderr,
6706                                         "%s setquota: warning: inode hardlimit '%llu' smaller than minimum qunit size\n"
6707                                         "See '%s help setquota' or Lustre manual for details\n",
6708                                         progname,
6709                                         (unsigned long long)dqb->dqb_ihardlimit,
6710                                         progname);
6711                         break;
6712                 default:
6713                         fprintf(stderr,
6714                                 "%s setquota: unrecognized option '%s'\n",
6715                                 progname, argv[optind - 1]);
6716                         return CMD_HELP;
6717                 }
6718         }
6719
6720         if (qctl.qc_type == ALLQUOTA) {
6721                 fprintf(stderr,
6722                         "%s setquota: either -u or -g must be specified\n",
6723                         progname);
6724                 return CMD_HELP;
6725         }
6726
6727         if (!use_default && limit_mask == 0) {
6728                 fprintf(stderr,
6729                         "%s setquota: at least one limit must be specified\n",
6730                         progname);
6731                 return CMD_HELP;
6732         }
6733
6734         if (use_default && limit_mask != 0) {
6735                 fprintf(stderr,
6736                         "%s setquota: limits should not be specified when"
6737                         " using default quota\n",
6738                         progname);
6739                 return CMD_HELP;
6740         }
6741
6742         if (use_default && qctl.qc_id == 0) {
6743                 fprintf(stderr,
6744                         "%s setquota: can not set default quota for root"
6745                         " user/group/project\n",
6746                         progname);
6747                 return CMD_HELP;
6748         }
6749
6750         if (optind != argc - 1) {
6751                 fprintf(stderr,
6752                         "%s setquota: filesystem not specified or unexpected argument '%s'\n",
6753                         progname, argv[optind]);
6754                 return CMD_HELP;
6755         }
6756
6757         mnt = argv[optind];
6758
6759         if (use_default) {
6760                 dqb->dqb_bhardlimit = 0;
6761                 dqb->dqb_bsoftlimit = 0;
6762                 dqb->dqb_ihardlimit = 0;
6763                 dqb->dqb_isoftlimit = 0;
6764                 dqb->dqb_itime = 0;
6765                 dqb->dqb_btime = 0;
6766                 dqb->dqb_valid |= QIF_LIMITS | QIF_TIMES;
6767         } else if ((!(limit_mask & BHLIMIT) ^ !(limit_mask & BSLIMIT)) ||
6768                    (!(limit_mask & IHLIMIT) ^ !(limit_mask & ISLIMIT))) {
6769                 /* sigh, we can't just set blimits/ilimits */
6770                 struct if_quotactl tmp_qctl = {.qc_cmd  = LUSTRE_Q_GETQUOTA,
6771                                                .qc_type = qctl.qc_type,
6772                                                .qc_id   = qctl.qc_id};
6773
6774                 rc = llapi_quotactl(mnt, &tmp_qctl);
6775                 if (rc < 0)
6776                         return rc;
6777
6778                 if (!(limit_mask & BHLIMIT))
6779                         dqb->dqb_bhardlimit = tmp_qctl.qc_dqblk.dqb_bhardlimit;
6780                 if (!(limit_mask & BSLIMIT))
6781                         dqb->dqb_bsoftlimit = tmp_qctl.qc_dqblk.dqb_bsoftlimit;
6782                 if (!(limit_mask & IHLIMIT))
6783                         dqb->dqb_ihardlimit = tmp_qctl.qc_dqblk.dqb_ihardlimit;
6784                 if (!(limit_mask & ISLIMIT))
6785                         dqb->dqb_isoftlimit = tmp_qctl.qc_dqblk.dqb_isoftlimit;
6786
6787                 /* Keep grace times if we have got no softlimit arguments */
6788                 if ((limit_mask & BHLIMIT) && !(limit_mask & BSLIMIT)) {
6789                         dqb->dqb_valid |= QIF_BTIME;
6790                         dqb->dqb_btime = tmp_qctl.qc_dqblk.dqb_btime;
6791                 }
6792
6793                 if ((limit_mask & IHLIMIT) && !(limit_mask & ISLIMIT)) {
6794                         dqb->dqb_valid |= QIF_ITIME;
6795                         dqb->dqb_itime = tmp_qctl.qc_dqblk.dqb_itime;
6796                 }
6797         }
6798
6799         dqb->dqb_valid |= (limit_mask & (BHLIMIT | BSLIMIT)) ? QIF_BLIMITS : 0;
6800         dqb->dqb_valid |= (limit_mask & (IHLIMIT | ISLIMIT)) ? QIF_ILIMITS : 0;
6801
6802         rc = llapi_quotactl(mnt, &qctl);
6803         if (rc) {
6804                 if (*obd_type)
6805                         fprintf(stderr,
6806                                 "%s setquota: cannot quotactl '%s' '%s': %s",
6807                                 progname, obd_type,
6808                                 obd_uuid2str(&qctl.obd_uuid), strerror(-rc));
6809                 return rc;
6810         }
6811
6812         return 0;
6813 }
6814
6815 /* Converts seconds value into format string
6816  * result is returned in buf
6817  * Notes:
6818  *        1. result is in descenting order: 1w2d3h4m5s
6819  *        2. zero fields are not filled (except for p. 3): 5d1s
6820  *        3. zero seconds value is presented as "0s"
6821  */
6822 static char * __sec2str(time_t seconds, char *buf)
6823 {
6824         const char spec[] = "smhdw";
6825         const unsigned long mult[] = {1, 60, 60*60, 24*60*60, 7*24*60*60};
6826         unsigned long c;
6827         char *tail = buf;
6828         int i;
6829
6830         for (i = ARRAY_SIZE(mult) - 1 ; i >= 0; i--) {
6831                 c = seconds / mult[i];
6832
6833                 if (c > 0 || (i == 0 && buf == tail))
6834                         tail += scnprintf(tail, 40-(tail-buf), "%lu%c", c,
6835                                           spec[i]);
6836
6837                 seconds %= mult[i];
6838         }
6839
6840         return tail;
6841 }
6842
6843 static void sec2str(time_t seconds, char *buf, int rc)
6844 {
6845         char *tail = buf;
6846
6847         if (rc)
6848                 *tail++ = '[';
6849
6850         tail = __sec2str(seconds, tail);
6851
6852         if (rc && tail - buf < 39) {
6853                 *tail++ = ']';
6854                 *tail++ = 0;
6855         }
6856 }
6857
6858 static void diff2str(time_t seconds, char *buf, time_t now)
6859 {
6860
6861         buf[0] = 0;
6862         if (!seconds)
6863                 return;
6864         if (seconds <= now) {
6865                 strcpy(buf, "none");
6866                 return;
6867         }
6868         __sec2str(seconds - now, buf);
6869 }
6870
6871 static void print_quota_title(char *name, struct if_quotactl *qctl,
6872                               bool human_readable, bool show_default)
6873 {
6874         if (show_default) {
6875                 printf("Disk default %s quota:\n", qtype_name(qctl->qc_type));
6876                 printf("%15s %8s%8s%8s %8s%8s%8s\n",
6877                        "Filesystem", "bquota", "blimit", "bgrace",
6878                        "iquota", "ilimit", "igrace");
6879         } else {
6880                 printf("Disk quotas for %s %s (%cid %u):\n",
6881                        qtype_name(qctl->qc_type), name,
6882                        *qtype_name(qctl->qc_type), qctl->qc_id);
6883                 printf("%15s%8s %7s%8s%8s%8s %7s%8s%8s\n",
6884                        "Filesystem", human_readable ? "used" : "kbytes",
6885                        "quota", "limit", "grace",
6886                        "files", "quota", "limit", "grace");
6887         }
6888 }
6889
6890 static void kbytes2str(__u64 num, char *buf, int buflen, bool h)
6891 {
6892         if (!h) {
6893                 snprintf(buf, buflen, "%ju", (uintmax_t)num);
6894         } else {
6895                 if (num >> 40)
6896                         snprintf(buf, buflen, "%5.4gP",
6897                                  (double)num / ((__u64)1 << 40));
6898                 else if (num >> 30)
6899                         snprintf(buf, buflen, "%5.4gT",
6900                                  (double)num / (1 << 30));
6901                 else if (num >> 20)
6902                         snprintf(buf, buflen, "%5.4gG",
6903                                  (double)num / (1 << 20));
6904                 else if (num >> 10)
6905                         snprintf(buf, buflen, "%5.4gM",
6906                                  (double)num / (1 << 10));
6907                 else
6908                         snprintf(buf, buflen, "%ju%s", (uintmax_t)num, "k");
6909         }
6910 }
6911
6912 #define STRBUF_LEN      32
6913 static void print_quota(char *mnt, struct if_quotactl *qctl, int type,
6914                         int rc, bool h, bool show_default)
6915 {
6916         time_t now;
6917
6918         time(&now);
6919
6920         if (qctl->qc_cmd == LUSTRE_Q_GETQUOTA || qctl->qc_cmd == Q_GETOQUOTA ||
6921             qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) {
6922                 int bover = 0, iover = 0;
6923                 struct obd_dqblk *dqb = &qctl->qc_dqblk;
6924                 char numbuf[3][STRBUF_LEN];
6925                 char timebuf[40];
6926                 char strbuf[STRBUF_LEN];
6927
6928                 if (dqb->dqb_bhardlimit &&
6929                     lustre_stoqb(dqb->dqb_curspace) >= dqb->dqb_bhardlimit) {
6930                         bover = 1;
6931                 } else if (dqb->dqb_bsoftlimit && dqb->dqb_btime) {
6932                         if (dqb->dqb_btime > now) {
6933                                 bover = 2;
6934                         } else {
6935                                 bover = 3;
6936                         }
6937                 }
6938
6939                 if (dqb->dqb_ihardlimit &&
6940                     dqb->dqb_curinodes >= dqb->dqb_ihardlimit) {
6941                         iover = 1;
6942                 } else if (dqb->dqb_isoftlimit && dqb->dqb_itime) {
6943                         if (dqb->dqb_itime > now) {
6944                                 iover = 2;
6945                         } else {
6946                                 iover = 3;
6947                         }
6948                 }
6949
6950
6951                 if (strlen(mnt) > 15)
6952                         printf("%s\n%15s", mnt, "");
6953                 else
6954                         printf("%15s", mnt);
6955
6956                 if (bover)
6957                         diff2str(dqb->dqb_btime, timebuf, now);
6958                 else if (show_default)
6959                         snprintf(timebuf, sizeof(timebuf), "%llu",
6960                                  (unsigned long long)dqb->dqb_btime);
6961
6962                 kbytes2str(lustre_stoqb(dqb->dqb_curspace),
6963                            strbuf, sizeof(strbuf), h);
6964                 if (rc == -EREMOTEIO)
6965                         sprintf(numbuf[0], "%s*", strbuf);
6966                 else
6967                         sprintf(numbuf[0], (dqb->dqb_valid & QIF_SPACE) ?
6968                                 "%s" : "[%s]", strbuf);
6969
6970                 kbytes2str(dqb->dqb_bsoftlimit, strbuf, sizeof(strbuf), h);
6971                 if (type == QC_GENERAL)
6972                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_BLIMITS) ?
6973                                 "%s" : "[%s]", strbuf);
6974                 else
6975                         sprintf(numbuf[1], "%s", "-");
6976
6977                 kbytes2str(dqb->dqb_bhardlimit, strbuf, sizeof(strbuf), h);
6978                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_BLIMITS) ?
6979                         "%s" : "[%s]", strbuf);
6980
6981                 if (show_default)
6982                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
6983                 else
6984                         printf(" %7s%c %6s %7s %7s",
6985                                numbuf[0], bover ? '*' : ' ', numbuf[1],
6986                                numbuf[2], bover > 1 ? timebuf : "-");
6987
6988
6989                 if (iover)
6990                         diff2str(dqb->dqb_itime, timebuf, now);
6991                 else if (show_default)
6992                         snprintf(timebuf, sizeof(timebuf), "%llu",
6993                                  (unsigned long long)dqb->dqb_itime);
6994
6995                 snprintf(numbuf[0], sizeof(numbuf),
6996                          (dqb->dqb_valid & QIF_INODES) ? "%ju" : "[%ju]",
6997                          (uintmax_t)dqb->dqb_curinodes);
6998
6999                 if (type == QC_GENERAL)
7000                         sprintf(numbuf[1], (dqb->dqb_valid & QIF_ILIMITS) ?
7001                                 "%ju" : "[%ju]",
7002                                 (uintmax_t)dqb->dqb_isoftlimit);
7003                 else
7004                         sprintf(numbuf[1], "%s", "-");
7005
7006                 sprintf(numbuf[2], (dqb->dqb_valid & QIF_ILIMITS) ?
7007                         "%ju" : "[%ju]", (uintmax_t)dqb->dqb_ihardlimit);
7008
7009                 if (show_default)
7010                         printf(" %6s %7s %7s", numbuf[1], numbuf[2], timebuf);
7011                 else if (type != QC_OSTIDX)
7012                         printf(" %7s%c %6s %7s %7s",
7013                                numbuf[0], iover ? '*' : ' ', numbuf[1],
7014                                numbuf[2], iover > 1 ? timebuf : "-");
7015                 else
7016                         printf(" %7s %7s %7s %7s", "-", "-", "-", "-");
7017                 printf("\n");
7018         } else if (qctl->qc_cmd == LUSTRE_Q_GETINFO ||
7019                    qctl->qc_cmd == Q_GETOINFO) {
7020                 char bgtimebuf[40];
7021                 char igtimebuf[40];
7022
7023                 if (qctl->qc_dqinfo.dqi_bgrace == NOTIFY_GRACE_TIME)
7024                         strncpy(bgtimebuf, NOTIFY_GRACE, 40);
7025                 else
7026                         sec2str(qctl->qc_dqinfo.dqi_bgrace, bgtimebuf, rc);
7027                 if (qctl->qc_dqinfo.dqi_igrace == NOTIFY_GRACE_TIME)
7028                         strncpy(igtimebuf, NOTIFY_GRACE, 40);
7029                 else
7030                         sec2str(qctl->qc_dqinfo.dqi_igrace, igtimebuf, rc);
7031
7032                 printf("Block grace time: %s; Inode grace time: %s\n",
7033                        bgtimebuf, igtimebuf);
7034         }
7035 }
7036
7037 static int print_obd_quota(char *mnt, struct if_quotactl *qctl, int is_mdt,
7038                            bool h, __u64 *total)
7039 {
7040         int rc = 0, rc1 = 0, count = 0;
7041         __u32 valid = qctl->qc_valid;
7042
7043         rc = llapi_get_obd_count(mnt, &count, is_mdt);
7044         if (rc) {
7045                 fprintf(stderr, "can not get %s count: %s\n",
7046                         is_mdt ? "mdt": "ost", strerror(-rc));
7047                 return rc;
7048         }
7049
7050         for (qctl->qc_idx = 0; qctl->qc_idx < count; qctl->qc_idx++) {
7051                 qctl->qc_valid = is_mdt ? QC_MDTIDX : QC_OSTIDX;
7052                 rc = llapi_quotactl(mnt, qctl);
7053                 if (rc) {
7054                         /* It is remote client case. */
7055                         if (rc == -EOPNOTSUPP) {
7056                                 rc = 0;
7057                                 goto out;
7058                         }
7059
7060                         if (!rc1)
7061                                 rc1 = rc;
7062                         fprintf(stderr, "quotactl %s%d failed.\n",
7063                                 is_mdt ? "mdt": "ost", qctl->qc_idx);
7064                         continue;
7065                 }
7066
7067                 print_quota(obd_uuid2str(&qctl->obd_uuid), qctl,
7068                             qctl->qc_valid, 0, h, false);
7069                 *total += is_mdt ? qctl->qc_dqblk.dqb_ihardlimit :
7070                                    qctl->qc_dqblk.dqb_bhardlimit;
7071         }
7072 out:
7073         qctl->qc_valid = valid;
7074         return rc ? : rc1;
7075 }
7076
7077 static int get_print_quota(char *mnt, char *name, struct if_quotactl *qctl,
7078                            int verbose, int quiet, bool human_readable,
7079                            bool show_default)
7080 {
7081         int rc1 = 0, rc2 = 0, rc3 = 0;
7082         char *obd_type = (char *)qctl->obd_type;
7083         char *obd_uuid = (char *)qctl->obd_uuid.uuid;
7084         __u64 total_ialloc = 0, total_balloc = 0;
7085         bool use_default_for_blk = false;
7086         bool use_default_for_file = false;
7087         int inacc;
7088
7089         rc1 = llapi_quotactl(mnt, qctl);
7090         if (rc1 < 0) {
7091                 switch (rc1) {
7092                 case -ESRCH:
7093                         fprintf(stderr, "%s quotas are not enabled.\n",
7094                                 qtype_name(qctl->qc_type));
7095                         goto out;
7096                 case -EPERM:
7097                         fprintf(stderr, "Permission denied.\n");
7098                 case -ENODEV:
7099                 case -ENOENT:
7100                         /* We already got error message. */
7101                         goto out;
7102                 default:
7103                         fprintf(stderr, "Unexpected quotactl error: %s\n",
7104                                 strerror(-rc1));
7105                 }
7106         }
7107
7108         if (!show_default && qctl->qc_id == 0) {
7109                 qctl->qc_dqblk.dqb_bhardlimit = 0;
7110                 qctl->qc_dqblk.dqb_bsoftlimit = 0;
7111                 qctl->qc_dqblk.dqb_ihardlimit = 0;
7112                 qctl->qc_dqblk.dqb_isoftlimit = 0;
7113                 qctl->qc_dqblk.dqb_btime = 0;
7114                 qctl->qc_dqblk.dqb_itime = 0;
7115                 qctl->qc_dqblk.dqb_valid |= QIF_LIMITS | QIF_TIMES;
7116         }
7117
7118         if (qctl->qc_dqblk.dqb_valid & QIF_BTIME &&
7119             LQUOTA_FLAG(qctl->qc_dqblk.dqb_btime) & LQUOTA_FLAG_DEFAULT) {
7120                 use_default_for_blk = true;
7121                 qctl->qc_dqblk.dqb_btime &= LQUOTA_GRACE_MASK;
7122         }
7123
7124         if (qctl->qc_dqblk.dqb_valid & QIF_ITIME &&
7125             LQUOTA_FLAG(qctl->qc_dqblk.dqb_itime) & LQUOTA_FLAG_DEFAULT) {
7126                 use_default_for_file = true;
7127                 qctl->qc_dqblk.dqb_itime &= LQUOTA_GRACE_MASK;
7128         }
7129
7130         if ((qctl->qc_cmd == LUSTRE_Q_GETQUOTA ||
7131              qctl->qc_cmd == LUSTRE_Q_GETDEFAULT) && !quiet)
7132                 print_quota_title(name, qctl, human_readable, show_default);
7133
7134         if (rc1 && *obd_type)
7135                 fprintf(stderr, "%s %s ", obd_type, obd_uuid);
7136
7137         if (qctl->qc_valid != QC_GENERAL)
7138                 mnt = "";
7139
7140         inacc = (qctl->qc_cmd == LUSTRE_Q_GETQUOTA) &&
7141                 ((qctl->qc_dqblk.dqb_valid & (QIF_LIMITS|QIF_USAGE)) !=
7142                  (QIF_LIMITS|QIF_USAGE));
7143
7144         print_quota(mnt, qctl, QC_GENERAL, rc1, human_readable, show_default);
7145
7146         if (!show_default && verbose &&
7147             qctl->qc_valid == QC_GENERAL && qctl->qc_cmd != LUSTRE_Q_GETINFO) {
7148                 char strbuf[STRBUF_LEN];
7149
7150                 rc2 = print_obd_quota(mnt, qctl, 1, human_readable,
7151                                       &total_ialloc);
7152                 rc3 = print_obd_quota(mnt, qctl, 0, human_readable,
7153                                       &total_balloc);
7154                 kbytes2str(total_balloc, strbuf, sizeof(strbuf),
7155                            human_readable);
7156                 printf("Total allocated inode limit: %ju, total "
7157                        "allocated block limit: %s\n", (uintmax_t)total_ialloc,
7158                        strbuf);
7159         }
7160
7161         if (use_default_for_blk)
7162                 printf("%cid %u is using default block quota setting\n",
7163                        *qtype_name(qctl->qc_type), qctl->qc_id);
7164
7165         if (use_default_for_file)
7166                 printf("%cid %u is using default file quota setting\n",
7167                        *qtype_name(qctl->qc_type), qctl->qc_id);
7168
7169         if (rc1 || rc2 || rc3 || inacc)
7170                 printf("Some errors happened when getting quota info. "
7171                        "Some devices may be not working or deactivated. "
7172                        "The data in \"[]\" is inaccurate.\n");
7173 out:
7174         if (rc1)
7175                 return rc1;
7176         if (rc2)
7177                 return rc2;
7178         if (rc3)
7179                 return rc3;
7180         if (inacc)
7181                 return -EIO;
7182
7183         return 0;
7184 }
7185
7186 static int lfs_project(int argc, char **argv)
7187 {
7188         int ret = 0, err = 0, c, i;
7189         struct project_handle_control phc = { 0 };
7190         enum lfs_project_ops_t op;
7191
7192         phc.newline = true;
7193         phc.assign_projid = false;
7194         /* default action */
7195         op = LFS_PROJECT_LIST;
7196
7197         while ((c = getopt(argc, argv, "p:cCsdkr0")) != -1) {
7198                 switch (c) {
7199                 case 'c':
7200                         if (op != LFS_PROJECT_LIST) {
7201                                 fprintf(stderr,
7202                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7203                                         progname);
7204                                 return CMD_HELP;
7205                         }
7206
7207                         op = LFS_PROJECT_CHECK;
7208                         break;
7209                 case 'C':
7210                         if (op != LFS_PROJECT_LIST) {
7211                                 fprintf(stderr,
7212                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7213                                         progname);
7214                                 return CMD_HELP;
7215                         }
7216
7217                         op = LFS_PROJECT_CLEAR;
7218                         break;
7219                 case 's':
7220                         if (op != LFS_PROJECT_LIST) {
7221                                 fprintf(stderr,
7222                                         "%s: cannot specify '-c' '-C' '-s' together\n",
7223                                         progname);
7224                                 return CMD_HELP;
7225                         }
7226
7227                         phc.set_inherit = true;
7228                         op = LFS_PROJECT_SET;
7229                         break;
7230                 case 'd':
7231                         phc.dironly = true;
7232                         break;
7233                 case 'k':
7234                         phc.keep_projid = true;
7235                         break;
7236                 case 'r':
7237                         phc.recursive = true;
7238                         break;
7239                 case 'p':
7240                         phc.projid = strtoul(optarg, NULL, 0);
7241                         phc.assign_projid = true;
7242
7243                         break;
7244                 case '0':
7245                         phc.newline = false;
7246                         break;
7247                 default:
7248                         fprintf(stderr, "%s: invalid option '%c'\n",
7249                                 progname, optopt);
7250                         return CMD_HELP;
7251                 }
7252         }
7253
7254         if (phc.assign_projid && op == LFS_PROJECT_LIST) {
7255                 op = LFS_PROJECT_SET;
7256                 phc.set_projid = true;
7257         } else if (phc.assign_projid && op == LFS_PROJECT_SET) {
7258                 phc.set_projid = true;
7259         }
7260
7261         switch (op) {
7262         case LFS_PROJECT_CHECK:
7263                 if (phc.keep_projid) {
7264                         fprintf(stderr,
7265                                 "%s: '-k' is useless together with '-c'\n",
7266                                 progname);
7267                         return CMD_HELP;
7268                 }
7269                 break;
7270         case LFS_PROJECT_CLEAR:
7271                 if (!phc.newline) {
7272                         fprintf(stderr,
7273                                 "%s: '-0' is useless together with '-C'\n",
7274                                 progname);
7275                         return CMD_HELP;
7276                 }
7277                 if (phc.assign_projid) {
7278                         fprintf(stderr,
7279                                 "%s: '-p' is useless together with '-C'\n",
7280                                 progname);
7281                         return CMD_HELP;
7282                 }
7283                 break;
7284         case LFS_PROJECT_SET:
7285                 if (!phc.newline) {
7286                         fprintf(stderr,
7287                                 "%s: '-0' is useless together with '-s'\n",
7288                                 progname);
7289                         return CMD_HELP;
7290                 }
7291                 if (phc.keep_projid) {
7292                         fprintf(stderr,
7293                                 "%s: '-k' is useless together with '-s'\n",
7294                                 progname);
7295                         return CMD_HELP;
7296                 }
7297                 break;
7298         default:
7299                 if (!phc.newline) {
7300                         fprintf(stderr,
7301                                 "%s: '-0' is useless for list operations\n",
7302                                 progname);
7303                         return CMD_HELP;
7304                 }
7305                 break;
7306         }
7307
7308         argv += optind;
7309         argc -= optind;
7310         if (argc == 0) {
7311                 fprintf(stderr, "%s: missing file or directory target(s)\n",
7312                         progname);
7313                 return CMD_HELP;
7314         }
7315
7316         for (i = 0; i < argc; i++) {
7317                 switch (op) {
7318                 case LFS_PROJECT_CHECK:
7319                         err = lfs_project_check(argv[i], &phc);
7320                         break;
7321                 case LFS_PROJECT_LIST:
7322                         err = lfs_project_list(argv[i], &phc);
7323                         break;
7324                 case LFS_PROJECT_CLEAR:
7325                         err = lfs_project_clear(argv[i], &phc);
7326                         break;
7327                 case LFS_PROJECT_SET:
7328                         err = lfs_project_set(argv[i], &phc);
7329                         break;
7330                 default:
7331                         break;
7332                 }
7333                 if (err && !ret)
7334                         ret = err;
7335         }
7336
7337         return ret;
7338 }
7339
7340 static int lfs_quota(int argc, char **argv)
7341 {
7342         int c;
7343         char *mnt, *name = NULL;
7344         struct if_quotactl qctl = { .qc_cmd = LUSTRE_Q_GETQUOTA,
7345                                     .qc_type = ALLQUOTA };
7346         char *obd_uuid = (char *)qctl.obd_uuid.uuid;
7347         int rc = 0, rc1 = 0, verbose = 0, quiet = 0;
7348         char *endptr;
7349         __u32 valid = QC_GENERAL, idx = 0;
7350         bool human_readable = false;
7351         bool show_default = false;
7352         int qtype;
7353
7354         while ((c = getopt(argc, argv, "gGi:I:o:pPqtuUvh")) != -1) {
7355                 switch (c) {
7356                 case 'U':
7357                         show_default = true;
7358                 case 'u':
7359                         qtype = USRQUOTA;
7360                         goto quota_type;
7361                 case 'G':
7362                         show_default = true;
7363                 case 'g':
7364                         qtype = GRPQUOTA;
7365                         goto quota_type;
7366                 case 'P':
7367                         show_default = true;
7368                 case 'p':
7369                         qtype = PRJQUOTA;
7370 quota_type:
7371                         if (qctl.qc_type != ALLQUOTA) {
7372                                 fprintf(stderr,
7373                                         "%s quota: only one of -u, -g, or -p may be specified\n",
7374                                         progname);
7375                                 return CMD_HELP;
7376                         }
7377                         qctl.qc_type = qtype;
7378                         break;
7379                 case 't':
7380                         qctl.qc_cmd = LUSTRE_Q_GETINFO;
7381                         break;
7382                 case 'o':
7383                         valid = qctl.qc_valid = QC_UUID;
7384                         snprintf(obd_uuid, sizeof(qctl.obd_uuid), "%s", optarg);
7385                         break;
7386                 case 'i':
7387                         valid = qctl.qc_valid = QC_MDTIDX;
7388                         idx = qctl.qc_idx = atoi(optarg);
7389                         if (idx == 0 && *optarg != '0') {
7390                                 fprintf(stderr,
7391                                         "%s quota: invalid MDT index '%s'\n",
7392                                         progname, optarg);
7393                                 return CMD_HELP;
7394                         }
7395                         break;
7396                 case 'I':
7397                         valid = qctl.qc_valid = QC_OSTIDX;
7398                         idx = qctl.qc_idx = atoi(optarg);
7399                         if (idx == 0 && *optarg != '0') {
7400                                 fprintf(stderr,
7401                                         "%s quota: invalid OST index '%s'\n",
7402                                         progname, optarg);
7403                                 return CMD_HELP;
7404                         }
7405                         break;
7406                 case 'v':
7407                         verbose = 1;
7408                         break;
7409                 case 'q':
7410                         quiet = 1;
7411                         break;
7412                 case 'h':
7413                         human_readable = true;
7414                         break;
7415                 default:
7416                         fprintf(stderr, "%s quota: unrecognized option '%s'\n",
7417                                 progname, argv[optind - 1]);
7418                         return CMD_HELP;
7419                 }
7420         }
7421
7422         /* current uid/gid info for "lfs quota /path/to/lustre/mount" */
7423         if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA && qctl.qc_type == ALLQUOTA &&
7424             optind == argc - 1 && !show_default) {
7425
7426                 qctl.qc_cmd = LUSTRE_Q_GETQUOTA;
7427                 qctl.qc_idx = idx;
7428
7429                 for (qtype = USRQUOTA; qtype <= GRPQUOTA; qtype++) {
7430                         qctl.qc_type = qtype;
7431                         qctl.qc_valid = valid;
7432                         if (qtype == USRQUOTA) {
7433                                 qctl.qc_id = geteuid();
7434                                 rc = uid2name(&name, qctl.qc_id);
7435                         } else {
7436                                 qctl.qc_id = getegid();
7437                                 rc = gid2name(&name, qctl.qc_id);
7438                                 memset(&qctl.qc_dqblk, 0,
7439                                        sizeof(qctl.qc_dqblk));
7440                         }
7441                         if (rc)
7442                                 name = "<unknown>";
7443                         mnt = argv[optind];
7444                         rc1 = get_print_quota(mnt, name, &qctl, verbose, quiet,
7445                                               human_readable, show_default);
7446                         if (rc1 && !rc)
7447                                 rc = rc1;
7448                 }
7449                 return rc;
7450         /* lfs quota -u username /path/to/lustre/mount */
7451         } else if (qctl.qc_cmd == LUSTRE_Q_GETQUOTA) {
7452                 /* options should be followed by u/g-name and mntpoint */
7453                 if ((!show_default && optind + 2 != argc) ||
7454                     (show_default && optind + 1 != argc) ||
7455                     qctl.qc_type == ALLQUOTA) {
7456                         fprintf(stderr,
7457                                 "%s quota: name and mount point must be specified\n",
7458                                 progname);
7459                         return CMD_HELP;
7460                 }
7461
7462                 if (!show_default) {
7463                         name = argv[optind++];
7464                         switch (qctl.qc_type) {
7465                         case USRQUOTA:
7466                                 rc = name2uid(&qctl.qc_id, name);
7467                                 break;
7468                         case GRPQUOTA:
7469                                 rc = name2gid(&qctl.qc_id, name);
7470                                 break;
7471                         case PRJQUOTA:
7472                                 rc = name2projid(&qctl.qc_id, name);
7473                                 break;
7474                         default:
7475                                 rc = -ENOTSUP;
7476                                 break;
7477                         }
7478                 } else {
7479                         qctl.qc_valid = QC_GENERAL;
7480                         qctl.qc_cmd = LUSTRE_Q_GETDEFAULT;
7481                         qctl.qc_id = 0;
7482                 }
7483
7484                 if (rc) {
7485                         qctl.qc_id = strtoul(name, &endptr, 10);
7486                         if (*endptr != '\0') {
7487                                 fprintf(stderr, "%s quota: invalid id '%s'\n",
7488                                         progname, name);
7489                                 return CMD_HELP;
7490                         }
7491                 }
7492         } else if (optind + 1 != argc || qctl.qc_type == ALLQUOTA) {
7493                 fprintf(stderr, "%s quota: missing quota info argument(s)\n",
7494                         progname);
7495                 return CMD_HELP;
7496         }
7497
7498         mnt = argv[optind];
7499         rc = get_print_quota(mnt, name, &qctl, verbose, quiet,
7500                              human_readable, show_default);
7501         return rc;
7502 }
7503 #endif /* HAVE_SYS_QUOTA_H! */
7504
7505 static int flushctx_ioctl(char *mp)
7506 {
7507         int fd, rc;
7508
7509         fd = open(mp, O_RDONLY);
7510         if (fd == -1) {
7511                 fprintf(stderr, "flushctx: error open %s: %s\n",
7512                         mp, strerror(errno));
7513                 return -1;
7514         }
7515
7516         rc = ioctl(fd, LL_IOC_FLUSHCTX);
7517         if (rc == -1)
7518                 fprintf(stderr, "flushctx: error ioctl %s: %s\n",
7519                         mp, strerror(errno));
7520
7521         close(fd);
7522         return rc;
7523 }
7524
7525 static int lfs_flushctx(int argc, char **argv)
7526 {
7527         int     kdestroy = 0, c;
7528         char    mntdir[PATH_MAX] = {'\0'};
7529         int     index = 0;
7530         int     rc = 0;
7531
7532         while ((c = getopt(argc, argv, "k")) != -1) {
7533                 switch (c) {
7534                 case 'k':
7535                         kdestroy = 1;
7536                         break;
7537                 default:
7538                         fprintf(stderr, "error: %s: option '-%c' "
7539                                         "unrecognized\n", argv[0], c);
7540                         return CMD_HELP;
7541                 }
7542         }
7543
7544         if (kdestroy) {
7545             if ((rc = system("kdestroy > /dev/null")) != 0) {
7546                 rc = WEXITSTATUS(rc);
7547                 fprintf(stderr, "error destroying tickets: %d, continuing\n", rc);
7548             }
7549         }
7550
7551         if (optind >= argc) {
7552                 /* flush for all mounted lustre fs. */
7553                 while (!llapi_search_mounts(NULL, index++, mntdir, NULL)) {
7554                         /* Check if we have a mount point */
7555                         if (mntdir[0] == '\0')
7556                                 continue;
7557
7558                         if (flushctx_ioctl(mntdir))
7559                                 rc = -1;
7560
7561                         mntdir[0] = '\0'; /* avoid matching in next loop */
7562                 }
7563         } else {
7564                 /* flush fs as specified */
7565                 while (optind < argc) {
7566                         if (flushctx_ioctl(argv[optind++]))
7567                                 rc = -1;
7568                 }
7569         }
7570         return rc;
7571 }
7572
7573 static int lfs_changelog(int argc, char **argv)
7574 {
7575         void *changelog_priv;
7576         struct changelog_rec *rec;
7577         long long startrec = 0, endrec = 0;
7578         char *mdd;
7579         struct option long_opts[] = {
7580                 { .val = 'f', .name = "follow", .has_arg = no_argument },
7581                 { .name = NULL } };
7582         char short_opts[] = "f";
7583         int rc, follow = 0;
7584
7585         while ((rc = getopt_long(argc, argv, short_opts,
7586                 long_opts, NULL)) != -1) {
7587                 switch (rc) {
7588                 case 'f':
7589                         follow++;
7590                         break;
7591                 default:
7592                         fprintf(stderr,
7593                                 "%s changelog: unrecognized option '%s'\n",
7594                                 progname, argv[optind - 1]);
7595                         return CMD_HELP;
7596                 }
7597         }
7598         if (optind >= argc) {
7599                 fprintf(stderr, "%s changelog: mdtname must be specified\n",
7600                         progname);
7601                 return CMD_HELP;
7602         }
7603
7604         mdd = argv[optind++];
7605         if (argc > optind)
7606                 startrec = strtoll(argv[optind++], NULL, 10);
7607         if (argc > optind)
7608                 endrec = strtoll(argv[optind++], NULL, 10);
7609
7610         rc = llapi_changelog_start(&changelog_priv,
7611                                    CHANGELOG_FLAG_BLOCK |
7612                                    CHANGELOG_FLAG_JOBID |
7613                                    CHANGELOG_FLAG_EXTRA_FLAGS |
7614                                    (follow ? CHANGELOG_FLAG_FOLLOW : 0),
7615                                    mdd, startrec);
7616         if (rc < 0) {
7617                 fprintf(stderr, "%s changelog: cannot start changelog: %s\n",
7618                         progname, strerror(errno = -rc));
7619                 return rc;
7620         }
7621
7622         rc = llapi_changelog_set_xflags(changelog_priv,
7623                                         CHANGELOG_EXTRA_FLAG_UIDGID |
7624                                         CHANGELOG_EXTRA_FLAG_NID |
7625                                         CHANGELOG_EXTRA_FLAG_OMODE |
7626                                         CHANGELOG_EXTRA_FLAG_XATTR);
7627         if (rc < 0) {
7628                 fprintf(stderr,
7629                         "%s changelog: cannot set xflags for changelog: %s\n",
7630                         progname, strerror(errno = -rc));
7631                 return rc;
7632         }
7633
7634         while ((rc = llapi_changelog_recv(changelog_priv, &rec)) == 0) {
7635                 time_t secs;
7636                 struct tm ts;
7637
7638                 if (endrec && rec->cr_index > endrec) {
7639                         llapi_changelog_free(&rec);
7640                         break;
7641                 }
7642                 if (rec->cr_index < startrec) {
7643                         llapi_changelog_free(&rec);
7644                         continue;
7645                 }
7646
7647                 secs = rec->cr_time >> 30;
7648                 gmtime_r(&secs, &ts);
7649                 printf("%ju %02d%-5s %02d:%02d:%02d.%09d %04d.%02d.%02d "
7650                        "0x%x t="DFID, (uintmax_t)rec->cr_index, rec->cr_type,
7651                        changelog_type2str(rec->cr_type),
7652                        ts.tm_hour, ts.tm_min, ts.tm_sec,
7653                        (int)(rec->cr_time & ((1 << 30) - 1)),
7654                        ts.tm_year + 1900, ts.tm_mon + 1, ts.tm_mday,
7655                        rec->cr_flags & CLF_FLAGMASK, PFID(&rec->cr_tfid));
7656
7657                 if (rec->cr_flags & CLF_JOBID) {
7658                         struct changelog_ext_jobid *jid =
7659                                 changelog_rec_jobid(rec);
7660
7661                         if (jid->cr_jobid[0] != '\0')
7662                                 printf(" j=%s", jid->cr_jobid);
7663                 }
7664
7665                 if (rec->cr_flags & CLF_EXTRA_FLAGS) {
7666                         struct changelog_ext_extra_flags *ef =
7667                                 changelog_rec_extra_flags(rec);
7668
7669                         printf(" ef=0x%llx",
7670                                (unsigned long long)ef->cr_extra_flags);
7671
7672                         if (ef->cr_extra_flags & CLFE_UIDGID) {
7673                                 struct changelog_ext_uidgid *uidgid =
7674                                         changelog_rec_uidgid(rec);
7675
7676                                 printf(" u=%llu:%llu",
7677                                        (unsigned long long)uidgid->cr_uid,
7678                                        (unsigned long long)uidgid->cr_gid);
7679                         }
7680                         if (ef->cr_extra_flags & CLFE_NID) {
7681                                 struct changelog_ext_nid *nid =
7682                                         changelog_rec_nid(rec);
7683
7684                                 printf(" nid=%s",
7685                                        libcfs_nid2str(nid->cr_nid));
7686                         }
7687
7688                         if (ef->cr_extra_flags & CLFE_OPEN) {
7689                                 struct changelog_ext_openmode *omd =
7690                                         changelog_rec_openmode(rec);
7691                                 char mode[] = "---";
7692
7693                                 /* exec mode must be exclusive */
7694                                 if (omd->cr_openflags & MDS_FMODE_EXEC) {
7695                                         mode[2] = 'x';
7696                                 } else {
7697                                         if (omd->cr_openflags & MDS_FMODE_READ)
7698                                                 mode[0] = 'r';
7699                                         if (omd->cr_openflags &
7700                                             (MDS_FMODE_WRITE |
7701                                              MDS_OPEN_TRUNC |
7702                                              MDS_OPEN_APPEND))
7703                                                 mode[1] = 'w';
7704                                 }
7705
7706                                 if (strcmp(mode, "---") != 0)
7707                                         printf(" m=%s", mode);
7708
7709                         }
7710
7711                         if (ef->cr_extra_flags & CLFE_XATTR) {
7712                                 struct changelog_ext_xattr *xattr =
7713                                         changelog_rec_xattr(rec);
7714
7715                                 if (xattr->cr_xattr[0] != '\0')
7716                                         printf(" x=%s", xattr->cr_xattr);
7717                         }
7718                 }
7719
7720                 if (rec->cr_namelen)
7721                         printf(" p="DFID" %.*s", PFID(&rec->cr_pfid),
7722                                rec->cr_namelen, changelog_rec_name(rec));
7723
7724                 if (rec->cr_flags & CLF_RENAME) {
7725                         struct changelog_ext_rename *rnm =
7726                                 changelog_rec_rename(rec);
7727
7728                         if (!fid_is_zero(&rnm->cr_sfid))
7729                                 printf(" s="DFID" sp="DFID" %.*s",
7730                                        PFID(&rnm->cr_sfid),
7731                                        PFID(&rnm->cr_spfid),
7732                                        (int)changelog_rec_snamelen(rec),
7733                                        changelog_rec_sname(rec));
7734                 }
7735                 printf("\n");
7736
7737                 llapi_changelog_free(&rec);
7738         }
7739
7740         llapi_changelog_fini(&changelog_priv);
7741
7742         if (rc < 0)
7743                 fprintf(stderr, "%s changelog: cannot access changelog: %s\n",
7744                         progname, strerror(errno = -rc));
7745
7746         return (rc == 1 ? 0 : rc);
7747 }
7748
7749 static int lfs_changelog_clear(int argc, char **argv)
7750 {
7751         long long endrec;
7752         int rc;
7753
7754         if (argc != 4)
7755                 return CMD_HELP;
7756
7757         endrec = strtoll(argv[3], NULL, 10);
7758
7759         rc = llapi_changelog_clear(argv[1], argv[2], endrec);
7760
7761         if (rc == -EINVAL)
7762                 fprintf(stderr, "%s: record out of range: %llu\n",
7763                         argv[0], endrec);
7764         else if (rc == -ENOENT)
7765                 fprintf(stderr, "%s: no changelog user: %s\n",
7766                         argv[0], argv[2]);
7767         else if (rc)
7768                 fprintf(stderr, "%s error: %s\n", argv[0],
7769                         strerror(-rc));
7770
7771         if (rc)
7772                 errno = -rc;
7773
7774         return rc;
7775 }
7776
7777 static int lfs_fid2path(int argc, char **argv)
7778 {
7779         struct option long_opts[] = {
7780                 { .val = 'c',   .name = "cur",  .has_arg = no_argument },
7781                 { .val = 'l',   .name = "link", .has_arg = required_argument },
7782                 { .val = 'r',   .name = "rec",  .has_arg = required_argument },
7783                 { .name = NULL } };
7784         char  short_opts[] = "cl:r:";
7785         char *device, *fid, *path;
7786         long long recno = -1;
7787         int linkno = -1;
7788         int lnktmp;
7789         int printcur = 0;
7790         int rc = 0;
7791         char *endptr = NULL;
7792
7793         while ((rc = getopt_long(argc, argv, short_opts,
7794                 long_opts, NULL)) != -1) {
7795                 switch (rc) {
7796                 case 'c':
7797                         printcur++;
7798                         break;
7799                 case 'l':
7800                         linkno = strtol(optarg, &endptr, 10);
7801                         if (*endptr != '\0') {
7802                                 fprintf(stderr,
7803                                         "%s fid2path: invalid linkno '%s'\n",
7804                                         progname, optarg);
7805                                 return CMD_HELP;
7806                         }
7807                         break;
7808                 case 'r':
7809                         recno = strtoll(optarg, &endptr, 10);
7810                         if (*endptr != '\0') {
7811                                 fprintf(stderr,
7812                                         "%s fid2path: invalid recno '%s'\n",
7813                                         progname, optarg);
7814                                 return CMD_HELP;
7815                         }
7816                         break;
7817                 default:
7818                         fprintf(stderr,
7819                                 "%s fid2path: unrecognized option '%s'\n",
7820                                 progname, argv[optind - 1]);
7821                         return CMD_HELP;
7822                 }
7823         }
7824
7825         if (argc < 3) {
7826                 fprintf(stderr,
7827                         "%s fid2path: <fsname|rootpath> and <fid>... must be specified\n",
7828                         progname);
7829                 return CMD_HELP;
7830         }
7831
7832         device = argv[optind++];
7833         path = calloc(1, PATH_MAX);
7834         if (path == NULL) {
7835                 rc = -errno;
7836                 fprintf(stderr,
7837                         "%s fid2path: cannot allocate memory for path: %s\n",
7838                         progname, strerror(-rc));
7839                 return rc;
7840         }
7841
7842         rc = 0;
7843         while (optind < argc) {
7844                 fid = argv[optind++];
7845
7846                 lnktmp = (linkno >= 0) ? linkno : 0;
7847                 while (1) {
7848                         int oldtmp = lnktmp;
7849                         long long rectmp = recno;
7850                         int rc2;
7851                         rc2 = llapi_fid2path(device, fid, path, PATH_MAX,
7852                                              &rectmp, &lnktmp);
7853                         if (rc2 < 0) {
7854                                 fprintf(stderr,
7855                                         "%s fid2path: cannot find '%s': %s\n",
7856                                         progname, fid, strerror(errno = -rc2));
7857                                 if (rc == 0)
7858                                         rc = rc2;
7859                                 break;
7860                         }
7861
7862                         if (printcur)
7863                                 fprintf(stdout, "%lld ", rectmp);
7864                         if (device[0] == '/') {
7865                                 fprintf(stdout, "%s", device);
7866                                 if (device[strlen(device) - 1] != '/')
7867                                         fprintf(stdout, "/");
7868                         } else if (path[0] == '\0') {
7869                                 fprintf(stdout, "/");
7870                         }
7871                         fprintf(stdout, "%s\n", path);
7872
7873                         if (linkno >= 0)
7874                                 /* specified linkno */
7875                                 break;
7876                         if (oldtmp == lnktmp)
7877                                 /* no more links */
7878                                 break;
7879                 }
7880         }
7881
7882         free(path);
7883         return rc;
7884 }
7885
7886 static int lfs_path2fid(int argc, char **argv)
7887 {
7888         struct option long_opts[] = {
7889                 { .val = 'p', .name = "parents", .has_arg = no_argument },
7890                 { .name = NULL } };
7891         char            **path;
7892         const char        short_opts[] = "p";
7893         const char       *sep = "";
7894         struct lu_fid     fid;
7895         int               rc = 0;
7896         bool              show_parents = false;
7897
7898         while ((rc = getopt_long(argc, argv, short_opts,
7899                                  long_opts, NULL)) != -1) {
7900                 switch (rc) {
7901                 case 'p':
7902                         show_parents = true;
7903                         break;
7904                 default:
7905                         fprintf(stderr,
7906                                 "%s path2fid: unrecognized option '%s'\n",
7907                                 progname, argv[optind - 1]);
7908                         return CMD_HELP;
7909                 }
7910         }
7911
7912         if (optind > argc - 1) {
7913                 fprintf(stderr, "%s path2fid: FILE... must be specified\n",
7914                         progname);
7915                 return CMD_HELP;
7916         }
7917         else if (optind < argc - 1)
7918                 sep = ": ";
7919
7920         rc = 0;
7921         for (path = argv + optind; *path != NULL; path++) {
7922                 int err = 0;
7923                 if (!show_parents) {
7924                         err = llapi_path2fid(*path, &fid);
7925                         if (!err)
7926                                 printf("%s%s"DFID"\n",
7927                                        *sep != '\0' ? *path : "", sep,
7928                                        PFID(&fid));
7929                 } else {
7930                         char            name[NAME_MAX + 1];
7931                         unsigned int    linkno = 0;
7932
7933                         while ((err = llapi_path2parent(*path, linkno, &fid,
7934                                                 name, sizeof(name))) == 0) {
7935                                 if (*sep != '\0' && linkno == 0)
7936                                         printf("%s%s", *path, sep);
7937
7938                                 printf("%s"DFID"/%s", linkno != 0 ? "\t" : "",
7939                                        PFID(&fid), name);
7940                                 linkno++;
7941                         }
7942
7943                         /* err == -ENODATA is end-of-loop */
7944                         if (linkno > 0 && err == -ENODATA) {
7945                                 printf("\n");
7946                                 err = 0;
7947                         }
7948                 }
7949
7950                 if (err) {
7951                         fprintf(stderr,
7952                                 "%s path2fid: cannot get %sfid for '%s': %s\n",
7953                                 progname, show_parents ? "parent " : "", *path,
7954                                 strerror(-err));
7955                         if (rc == 0) {
7956                                 rc = err;
7957                                 errno = -err;
7958                         }
7959                 }
7960         }
7961
7962         return rc;
7963 }
7964
7965 #define MAX_ERRNO       4095
7966 #define IS_ERR_VALUE(x) ((unsigned long)(x) >= (unsigned long)-MAX_ERRNO)
7967
7968 static int lfs_rmfid_and_show_errors(const char *device, struct fid_array *fa)
7969 {
7970         int rc, rc2 = 0, k;
7971
7972         rc = llapi_rmfid(device, fa);
7973         if (rc) {
7974                 fprintf(stderr, "rmfid(): rc = %d\n", rc);
7975                 return rc;
7976         }
7977
7978         for (k = 0; k < fa->fa_nr; k++) {
7979                 rc = (__s32)fa->fa_fids[k].f_ver;
7980                 if (!IS_ERR_VALUE(rc))
7981                         continue;
7982                 if (!rc2 && rc)
7983                         rc2 = rc;
7984                 if (!rc)
7985                         continue;
7986                 fa->fa_fids[k].f_ver = 0;
7987                 fprintf(stderr, "rmfid("DFID"): rc = %d\n",
7988                         PFID(&fa->fa_fids[k]), rc);
7989         }
7990
7991         return rc2;
7992 }
7993
7994 static int lfs_rmfid(int argc, char **argv)
7995 {
7996         char *fidstr, *device;
7997         int rc = 0, rc2, nr;
7998         struct fid_array *fa;
7999
8000         if (optind > argc - 1) {
8001                 fprintf(stderr, "%s rmfid: missing dirname\n", progname);
8002                 return CMD_HELP;
8003         }
8004
8005         device = argv[optind++];
8006
8007         nr = argc - optind;
8008         fa = malloc(offsetof(struct fid_array, fa_fids[nr + 1]));
8009         if (fa == NULL)
8010                 return -ENOMEM;
8011
8012         fa->fa_nr = 0;
8013         rc = 0;
8014         while (optind < argc) {
8015                 int found;
8016
8017                 fidstr = argv[optind++];
8018                 while (*fidstr == '[')
8019                         fidstr++;
8020                 found = sscanf(fidstr, SFID, RFID(&fa->fa_fids[fa->fa_nr]));
8021                 if (found != 3) {
8022                         fprintf(stderr, "unrecognized FID: %s\n",
8023                                 argv[optind - 1]);
8024                         exit(1);
8025                 }
8026                 fa->fa_nr++;
8027                 if (fa->fa_nr == OBD_MAX_FIDS_IN_ARRAY) {
8028                         /* start another batch */
8029                         rc2 = lfs_rmfid_and_show_errors(device, fa);
8030                         if (rc2 && !rc)
8031                                 rc = rc2;
8032                         fa->fa_nr = 0;
8033                 }
8034         }
8035         if (fa->fa_nr) {
8036                 rc2 = lfs_rmfid_and_show_errors(device, fa);
8037                 if (rc2 && !rc)
8038                         rc = rc2;
8039         }
8040
8041         return rc;
8042 }
8043
8044 static int lfs_data_version(int argc, char **argv)
8045 {
8046         char *path;
8047         __u64 data_version;
8048         int fd;
8049         int rc;
8050         int c;
8051         int data_version_flags = LL_DV_RD_FLUSH; /* Read by default */
8052
8053         if (argc < 2) {
8054                 fprintf(stderr, "%s data_version: FILE must be specified\n",
8055                         progname);
8056                 return CMD_HELP;
8057         }
8058
8059         while ((c = getopt(argc, argv, "nrw")) != -1) {
8060                 switch (c) {
8061                 case 'n':
8062                         data_version_flags = 0;
8063                         break;
8064                 case 'r':
8065                         data_version_flags |= LL_DV_RD_FLUSH;
8066                         break;
8067                 case 'w':
8068                         data_version_flags |= LL_DV_WR_FLUSH;
8069                         break;
8070                 default:
8071                         fprintf(stderr,
8072                                 "%s data_version: unrecognized option '%s'\n",
8073                                 progname, argv[optind - 1]);
8074                         return CMD_HELP;
8075                 }
8076         }
8077         if (optind == argc) {
8078                 fprintf(stderr, "%s data_version: FILE must be specified\n",
8079                         progname);
8080                 return CMD_HELP;
8081         }
8082
8083         path = argv[optind];
8084         fd = open(path, O_RDONLY);
8085         if (fd < 0) {
8086                 rc = -errno;
8087                 fprintf(stderr, "%s data_version: cannot open file '%s': %s\n",
8088                         progname, path, strerror(-rc));
8089                 return rc;
8090         }
8091
8092         rc = llapi_get_data_version(fd, &data_version, data_version_flags);
8093         if (rc < 0)
8094                 fprintf(stderr,
8095                         "%s data_version: cannot get version for '%s': %s\n",
8096                         progname, path, strerror(-rc));
8097         else
8098                 printf("%ju" "\n", (uintmax_t)data_version);
8099
8100         close(fd);
8101         return rc;
8102 }
8103
8104 static int lfs_hsm_state(int argc, char **argv)
8105 {
8106         int rc;
8107         int i = 1;
8108         char *path;
8109         struct hsm_user_state hus;
8110
8111         if (argc < 2)
8112                 return CMD_HELP;
8113
8114         do {
8115                 path = argv[i];
8116
8117                 rc = llapi_hsm_state_get(path, &hus);
8118                 if (rc) {
8119                         fprintf(stderr, "can't get hsm state for %s: %s\n",
8120                                 path, strerror(errno = -rc));
8121                         return rc;
8122                 }
8123
8124                 /* Display path name and status flags */
8125                 printf("%s: (0x%08x)", path, hus.hus_states);
8126
8127                 if (hus.hus_states & HS_RELEASED)
8128                         printf(" released");
8129                 if (hus.hus_states & HS_EXISTS)
8130                         printf(" exists");
8131                 if (hus.hus_states & HS_DIRTY)
8132                         printf(" dirty");
8133                 if (hus.hus_states & HS_ARCHIVED)
8134                         printf(" archived");
8135                 /* Display user-settable flags */
8136                 if (hus.hus_states & HS_NORELEASE)
8137                         printf(" never_release");
8138                 if (hus.hus_states & HS_NOARCHIVE)
8139                         printf(" never_archive");
8140                 if (hus.hus_states & HS_LOST)
8141                         printf(" lost_from_hsm");
8142
8143                 if (hus.hus_archive_id != 0)
8144                         printf(", archive_id:%d", hus.hus_archive_id);
8145                 printf("\n");
8146
8147         } while (++i < argc);
8148
8149         return 0;
8150 }
8151
8152 #define LFS_HSM_SET   0
8153 #define LFS_HSM_CLEAR 1
8154
8155 /**
8156  * Generic function to set or clear HSM flags.
8157  * Used by hsm_set and hsm_clear.
8158  *
8159  * @mode  if LFS_HSM_SET, set the flags, if LFS_HSM_CLEAR, clear the flags.
8160  */
8161 static int lfs_hsm_change_flags(int argc, char **argv, int mode)
8162 {
8163         struct option long_opts[] = {
8164         { .val = 'A',   .name = "archived",     .has_arg = no_argument },
8165         { .val = 'a',   .name = "noarchive",    .has_arg = no_argument },
8166         { .val = 'd',   .name = "dirty",        .has_arg = no_argument },
8167         { .val = 'e',   .name = "exists",       .has_arg = no_argument },
8168         { .val = 'l',   .name = "lost",         .has_arg = no_argument },
8169         { .val = 'r',   .name = "norelease",    .has_arg = no_argument },
8170         { .val = 'i',   .name = "archive-id",   .has_arg = required_argument },
8171         { .name = NULL } };
8172         char short_opts[] = "lraAdei:";
8173         __u64 mask = 0;
8174         int c, rc;
8175         char *path;
8176         __u32 archive_id = 0;
8177         char *end = NULL;
8178
8179         if (argc < 3)
8180                 return CMD_HELP;
8181
8182         while ((c = getopt_long(argc, argv, short_opts,
8183                                 long_opts, NULL)) != -1) {
8184                 switch (c) {
8185                 case 'l':
8186                         mask |= HS_LOST;
8187                         break;
8188                 case 'a':
8189                         mask |= HS_NOARCHIVE;
8190                         break;
8191                 case 'A':
8192                         mask |= HS_ARCHIVED;
8193                         break;
8194                 case 'r':
8195                         mask |= HS_NORELEASE;
8196                         break;
8197                 case 'd':
8198                         mask |= HS_DIRTY;
8199                         break;
8200                 case 'e':
8201                         mask |= HS_EXISTS;
8202                         break;
8203                 case 'i':
8204                         archive_id = strtol(optarg, &end, 10);
8205                         if (*end != '\0') {
8206                                 fprintf(stderr, "invalid archive_id: '%s'\n",
8207                                         end);
8208                                 return CMD_HELP;
8209                         }
8210                         break;
8211                 case '?':
8212                         return CMD_HELP;
8213                 default:
8214                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
8215                                 argv[0], argv[optind - 1]);
8216                         return CMD_HELP;
8217                 }
8218         }
8219
8220         /* User should have specified a flag */
8221         if (mask == 0)
8222                 return CMD_HELP;
8223
8224         while (optind < argc) {
8225
8226                 path = argv[optind];
8227
8228                 /* If mode == 0, this means we apply the mask. */
8229                 if (mode == LFS_HSM_SET)
8230                         rc = llapi_hsm_state_set(path, mask, 0, archive_id);
8231                 else
8232                         rc = llapi_hsm_state_set(path, 0, mask, 0);
8233
8234                 if (rc != 0) {
8235                         fprintf(stderr, "Can't change hsm flags for %s: %s\n",
8236                                 path, strerror(errno = -rc));
8237                         return rc;
8238                 }
8239                 optind++;
8240         }
8241
8242         return 0;
8243 }
8244
8245 static int lfs_hsm_action(int argc, char **argv)
8246 {
8247         int                              rc;
8248         int                              i = 1;
8249         char                            *path;
8250         struct hsm_current_action        hca;
8251         struct hsm_extent                he;
8252         enum hsm_user_action             hua;
8253         enum hsm_progress_states         hps;
8254
8255         if (argc < 2)
8256                 return CMD_HELP;
8257
8258         do {
8259                 path = argv[i];
8260
8261                 rc = llapi_hsm_current_action(path, &hca);
8262                 if (rc) {
8263                         fprintf(stderr, "can't get hsm action for %s: %s\n",
8264                                 path, strerror(errno = -rc));
8265                         return rc;
8266                 }
8267                 he = hca.hca_location;
8268                 hua = hca.hca_action;
8269                 hps = hca.hca_state;
8270
8271                 printf("%s: %s", path, hsm_user_action2name(hua));
8272
8273                 /* Skip file without action */
8274                 if (hca.hca_action == HUA_NONE) {
8275                         printf("\n");
8276                         continue;
8277                 }
8278
8279                 printf(" %s ", hsm_progress_state2name(hps));
8280
8281                 if ((hps == HPS_RUNNING) &&
8282                     (hua == HUA_ARCHIVE || hua == HUA_RESTORE))
8283                         printf("(%llu bytes moved)\n",
8284                                (unsigned long long)he.length);
8285                 else if ((he.offset + he.length) == LUSTRE_EOF)
8286                         printf("(from %llu to EOF)\n",
8287                                (unsigned long long)he.offset);
8288                 else
8289                         printf("(from %llu to %llu)\n",
8290                                (unsigned long long)he.offset,
8291                                (unsigned long long)(he.offset + he.length));
8292
8293         } while (++i < argc);
8294
8295         return 0;
8296 }
8297
8298 static int lfs_hsm_set(int argc, char **argv)
8299 {
8300         return lfs_hsm_change_flags(argc, argv, LFS_HSM_SET);
8301 }
8302
8303 static int lfs_hsm_clear(int argc, char **argv)
8304 {
8305         return lfs_hsm_change_flags(argc, argv, LFS_HSM_CLEAR);
8306 }
8307
8308 /**
8309  * Check file state and return its fid, to be used by lfs_hsm_request().
8310  *
8311  * \param[in]     file      Path to file to check
8312  * \param[in,out] fid       Pointer to allocated lu_fid struct.
8313  * \param[in,out] last_dev  Pointer to last device id used.
8314  *
8315  * \return 0 on success.
8316  */
8317 static int lfs_hsm_prepare_file(const char *file, struct lu_fid *fid,
8318                                 dev_t *last_dev)
8319 {
8320         struct stat     st;
8321         int             rc;
8322
8323         rc = lstat(file, &st);
8324         if (rc) {
8325                 fprintf(stderr, "Cannot stat %s: %s\n", file, strerror(errno));
8326                 return -errno;
8327         }
8328         /* Checking for regular file as archiving as posix copytool
8329          * rejects archiving files other than regular files
8330          */
8331         if (!S_ISREG(st.st_mode)) {
8332                 fprintf(stderr, "error: \"%s\" is not a regular file\n", file);
8333                 return CMD_HELP;
8334         }
8335         /* A request should be ... */
8336         if (*last_dev != st.st_dev && *last_dev != 0) {
8337                 fprintf(stderr, "All files should be "
8338                         "on the same filesystem: %s\n", file);
8339                 return -EINVAL;
8340         }
8341         *last_dev = st.st_dev;
8342
8343         rc = llapi_path2fid(file, fid);
8344         if (rc) {
8345                 fprintf(stderr, "Cannot read FID of %s: %s\n",
8346                         file, strerror(-rc));
8347                 return rc;
8348         }
8349         return 0;
8350 }
8351
8352 /* Fill an HSM HUR item with a given file name.
8353  *
8354  * If mntpath is set, then the filename is actually a FID, and no
8355  * lookup on the filesystem will be performed.
8356  *
8357  * \param[in]  hur         the user request to fill
8358  * \param[in]  idx         index of the item inside the HUR to fill
8359  * \param[in]  mntpath     mountpoint of Lustre
8360  * \param[in]  fname       filename (if mtnpath is NULL)
8361  *                         or FID (if mntpath is set)
8362  * \param[in]  last_dev    pointer to last device id used
8363  *
8364  * \retval 0 on success
8365  * \retval CMD_HELP or a negative errno on error
8366  */
8367 static int fill_hur_item(struct hsm_user_request *hur, unsigned int idx,
8368                          const char *mntpath, const char *fname,
8369                          dev_t *last_dev)
8370 {
8371         struct hsm_user_item *hui = &hur->hur_user_item[idx];
8372         int rc;
8373
8374         hui->hui_extent.length = -1;
8375
8376         if (mntpath != NULL) {
8377                 rc = llapi_fid_parse(fname, &hui->hui_fid, NULL);
8378                 if (rc)
8379                         fprintf(stderr, "hsm: '%s' is not a valid FID\n",
8380                                 fname);
8381         } else {
8382                 rc = lfs_hsm_prepare_file(fname, &hui->hui_fid, last_dev);
8383         }
8384
8385         if (rc == 0)
8386                 hur->hur_request.hr_itemcount++;
8387
8388         return rc;
8389 }
8390
8391 static int lfs_hsm_request(int argc, char **argv, int action)
8392 {
8393         struct option long_opts[] = {
8394         { .val = 'a',   .name = "archive",      .has_arg = required_argument },
8395         { .val = 'D',   .name = "data",         .has_arg = required_argument },
8396         { .val = 'l',   .name = "filelist",     .has_arg = required_argument },
8397         { .val = 'm',   .name = "mntpath",      .has_arg = required_argument },
8398         { .name = NULL } };
8399         dev_t                    last_dev = 0;
8400         char                     short_opts[] = "l:D:a:m:";
8401         struct hsm_user_request *hur, *oldhur;
8402         int                      c, i;
8403         size_t                   len;
8404         int                      nbfile;
8405         char                    *line = NULL;
8406         char                    *filelist = NULL;
8407         char                     fullpath[PATH_MAX];
8408         char                    *opaque = NULL;
8409         int                      opaque_len = 0;
8410         int                      archive_id = 0;
8411         FILE                    *fp;
8412         int                      nbfile_alloc = 0;
8413         char                    *some_file = NULL;
8414         char                    *mntpath = NULL;
8415         int                      rc;
8416
8417         if (argc < 2)
8418                 return CMD_HELP;
8419
8420         while ((c = getopt_long(argc, argv, short_opts,
8421                                 long_opts, NULL)) != -1) {
8422                 switch (c) {
8423                 case 'l':
8424                         filelist = optarg;
8425                         break;
8426                 case 'D':
8427                         opaque = optarg;
8428                         break;
8429                 case 'a':
8430                         if (action != HUA_ARCHIVE &&
8431                             action != HUA_REMOVE) {
8432                                 fprintf(stderr,
8433                                         "error: -a is supported only "
8434                                         "when archiving or removing\n");
8435                                 return CMD_HELP;
8436                         }
8437                         archive_id = atoi(optarg);
8438                         break;
8439                 case 'm':
8440                         if (some_file == NULL) {
8441                                 mntpath = optarg;
8442                                 some_file = strdup(optarg);
8443                         }
8444                         break;
8445                 case '?':
8446                         return CMD_HELP;
8447                 default:
8448                         fprintf(stderr, "error: %s: option '%s' unrecognized\n",
8449                                 argv[0], argv[optind - 1]);
8450                         return CMD_HELP;
8451                 }
8452         }
8453
8454         /* All remaining args are files, so we have at least nbfile */
8455         nbfile = argc - optind;
8456
8457         if ((nbfile == 0) && (filelist == NULL))
8458                 return CMD_HELP;
8459
8460         if (opaque != NULL)
8461                 opaque_len = strlen(opaque);
8462
8463         /* Alloc the request structure with enough place to store all files
8464          * from command line. */
8465         hur = llapi_hsm_user_request_alloc(nbfile, opaque_len);
8466         if (hur == NULL) {
8467                 fprintf(stderr, "Cannot create the request: %s\n",
8468                         strerror(errno));
8469                 return errno;
8470         }
8471         nbfile_alloc = nbfile;
8472
8473         hur->hur_request.hr_action = action;
8474         hur->hur_request.hr_archive_id = archive_id;
8475         hur->hur_request.hr_flags = 0;
8476
8477         /* All remaining args are files, add them */
8478         if (nbfile != 0 && some_file == NULL)
8479                 some_file = strdup(argv[optind]);
8480
8481         for (i = 0; i < nbfile; i++) {
8482                 rc = fill_hur_item(hur, i, mntpath, argv[optind + i],
8483                                    &last_dev);
8484                 if (rc)
8485                         goto out_free;
8486         }
8487
8488         /* from here stop using nb_file, use hur->hur_request.hr_itemcount */
8489
8490         /* If a filelist was specified, read the filelist from it. */
8491         if (filelist != NULL) {
8492                 fp = fopen(filelist, "r");
8493                 if (fp == NULL) {
8494                         fprintf(stderr, "Cannot read the file list %s: %s\n",
8495                                 filelist, strerror(errno));
8496                         rc = -errno;
8497                         goto out_free;
8498                 }
8499
8500                 while ((rc = getline(&line, &len, fp)) != -1) {
8501                         /* If allocated buffer was too small, get something
8502                          * larger */
8503                         if (nbfile_alloc <= hur->hur_request.hr_itemcount) {
8504                                 ssize_t size;
8505
8506                                 nbfile_alloc = nbfile_alloc * 2 + 1;
8507                                 oldhur = hur;
8508                                 hur = llapi_hsm_user_request_alloc(nbfile_alloc,
8509                                                                    opaque_len);
8510                                 if (hur == NULL) {
8511                                         fprintf(stderr, "hsm: cannot allocate "
8512                                                 "the request: %s\n",
8513                                                 strerror(errno));
8514                                         hur = oldhur;
8515                                         rc = -errno;
8516                                         fclose(fp);
8517                                         goto out_free;
8518                                 }
8519                                 size = hur_len(oldhur);
8520                                 if (size < 0) {
8521                                         fprintf(stderr, "hsm: cannot allocate "
8522                                                 "%u files + %u bytes data\n",
8523                                             oldhur->hur_request.hr_itemcount,
8524                                             oldhur->hur_request.hr_data_len);
8525                                         free(hur);
8526                                         hur = oldhur;
8527                                         rc = -E2BIG;
8528                                         fclose(fp);
8529                                         goto out_free;
8530                                 }
8531                                 memcpy(hur, oldhur, size);
8532                                 free(oldhur);
8533                         }
8534
8535                         /* Chop CR */
8536                         if (line[strlen(line) - 1] == '\n')
8537                                 line[strlen(line) - 1] = '\0';
8538
8539                         rc = fill_hur_item(hur, hur->hur_request.hr_itemcount,
8540                                            mntpath, line, &last_dev);
8541                         if (rc) {
8542                                 fclose(fp);
8543                                 goto out_free;
8544                         }
8545
8546                         if (some_file == NULL) {
8547                                 some_file = line;
8548                                 line = NULL;
8549                         }
8550                 }
8551
8552                 rc = fclose(fp);
8553                 free(line);
8554         }
8555
8556         /* If a --data was used, add it to the request */
8557         hur->hur_request.hr_data_len = opaque_len;
8558         if (opaque != NULL)
8559                 memcpy(hur_data(hur), opaque, opaque_len);
8560
8561         /* Send the HSM request */
8562         if (realpath(some_file, fullpath) == NULL) {
8563                 fprintf(stderr, "Could not find path '%s': %s\n",
8564                         some_file, strerror(errno));
8565         }
8566         rc = llapi_hsm_request(fullpath, hur);
8567         if (rc) {
8568                 fprintf(stderr, "Cannot send HSM request (use of %s): %s\n",
8569                         some_file, strerror(-rc));
8570                 goto out_free;
8571         }
8572
8573 out_free:
8574         free(some_file);
8575         free(hur);
8576         return rc;
8577 }
8578
8579 static int lfs_hsm_archive(int argc, char **argv)
8580 {
8581         return lfs_hsm_request(argc, argv, HUA_ARCHIVE);
8582 }
8583
8584 static int lfs_hsm_restore(int argc, char **argv)
8585 {
8586         return lfs_hsm_request(argc, argv, HUA_RESTORE);
8587 }
8588
8589 static int lfs_hsm_release(int argc, char **argv)
8590 {
8591         return lfs_hsm_request(argc, argv, HUA_RELEASE);
8592 }
8593
8594 static int lfs_hsm_remove(int argc, char **argv)
8595 {
8596         return lfs_hsm_request(argc, argv, HUA_REMOVE);
8597 }
8598
8599 static int lfs_hsm_cancel(int argc, char **argv)
8600 {
8601         return lfs_hsm_request(argc, argv, HUA_CANCEL);
8602 }
8603
8604 static int lfs_swap_layouts(int argc, char **argv)
8605 {
8606         if (argc != 3)
8607                 return CMD_HELP;
8608
8609         return llapi_swap_layouts(argv[1], argv[2], 0, 0,
8610                                   SWAP_LAYOUTS_KEEP_MTIME |
8611                                   SWAP_LAYOUTS_KEEP_ATIME);
8612 }
8613
8614 static const char *const ladvise_names[] = LU_LADVISE_NAMES;
8615
8616 static const char *const lock_mode_names[] = LOCK_MODE_NAMES;
8617
8618 int lfs_get_mode(const char *string)
8619 {
8620         enum lock_mode_user mode;
8621
8622         for (mode = 0; mode < ARRAY_SIZE(lock_mode_names); mode++) {
8623                 if (lock_mode_names[mode] == NULL)
8624                         continue;
8625                 if (strcmp(string, lock_mode_names[mode]) == 0)
8626                         return mode;
8627         }
8628
8629         return -EINVAL;
8630 }
8631
8632 static enum lu_ladvise_type lfs_get_ladvice(const char *string)
8633 {
8634         enum lu_ladvise_type advice;
8635
8636         for (advice = 0;
8637              advice < ARRAY_SIZE(ladvise_names); advice++) {
8638                 if (ladvise_names[advice] == NULL)
8639                         continue;
8640                 if (strcmp(string, ladvise_names[advice]) == 0)
8641                         return advice;
8642         }
8643
8644         return LU_LADVISE_INVALID;
8645 }
8646
8647 static int lfs_ladvise(int argc, char **argv)
8648 {
8649         struct option long_opts[] = {
8650         { .val = 'a',   .name = "advice",       .has_arg = required_argument },
8651         { .val = 'b',   .name = "background",   .has_arg = no_argument },
8652         { .val = 'e',   .name = "end",          .has_arg = required_argument },
8653         { .val = 'l',   .name = "length",       .has_arg = required_argument },
8654         { .val = 'm',   .name = "mode",         .has_arg = required_argument },
8655         { .val = 's',   .name = "start",        .has_arg = required_argument },
8656         { .val = 'u',   .name = "unset",        .has_arg = no_argument },
8657         { .name = NULL } };
8658         char                     short_opts[] = "a:be:l:m:s:u";
8659         int                      c;
8660         int                      rc = 0;
8661         const char              *path;
8662         int                      fd;
8663         struct llapi_lu_ladvise  advice;
8664         enum lu_ladvise_type     advice_type = LU_LADVISE_INVALID;
8665         unsigned long long       start = 0;
8666         unsigned long long       end = LUSTRE_EOF;
8667         unsigned long long       length = 0;
8668         unsigned long long       size_units;
8669         unsigned long long       flags = 0;
8670         int                      mode = 0;
8671
8672         optind = 0;
8673         while ((c = getopt_long(argc, argv, short_opts,
8674                                 long_opts, NULL)) != -1) {
8675                 switch (c) {
8676                 case 'a':
8677                         advice_type = lfs_get_ladvice(optarg);
8678                         if (advice_type == LU_LADVISE_INVALID) {
8679                                 fprintf(stderr, "%s: invalid advice type "
8680                                         "'%s'\n", argv[0], optarg);
8681                                 fprintf(stderr, "Valid types:");
8682
8683                                 for (advice_type = 0;
8684                                      advice_type < ARRAY_SIZE(ladvise_names);
8685                                      advice_type++) {
8686                                         if (ladvise_names[advice_type] == NULL)
8687                                                 continue;
8688                                         fprintf(stderr, " %s",
8689                                                 ladvise_names[advice_type]);
8690                                 }
8691                                 fprintf(stderr, "\n");
8692
8693                                 return CMD_HELP;
8694                         }
8695                         break;
8696                 case 'b':
8697                         flags |= LF_ASYNC;
8698                         break;
8699                 case 'u':
8700                         flags |= LF_UNSET;
8701                         break;
8702                 case 'e':
8703                         size_units = 1;
8704                         rc = llapi_parse_size(optarg, &end,
8705                                               &size_units, 0);
8706                         if (rc) {
8707                                 fprintf(stderr, "%s: bad end offset '%s'\n",
8708                                         argv[0], optarg);
8709                                 return CMD_HELP;
8710                         }
8711                         break;
8712                 case 's':
8713                         size_units = 1;
8714                         rc = llapi_parse_size(optarg, &start,
8715                                               &size_units, 0);
8716                         if (rc) {
8717                                 fprintf(stderr, "%s: bad start offset "
8718                                         "'%s'\n", argv[0], optarg);
8719                                 return CMD_HELP;
8720                         }
8721                         break;
8722                 case 'l':
8723                         size_units = 1;
8724                         rc = llapi_parse_size(optarg, &length,
8725                                               &size_units, 0);
8726                         if (rc) {
8727                                 fprintf(stderr, "%s: bad length '%s'\n",
8728                                         argv[0], optarg);
8729                                 return CMD_HELP;
8730                         }
8731                         break;
8732                 case 'm':
8733                         mode = lfs_get_mode(optarg);
8734                         if (mode < 0) {
8735                                 fprintf(stderr, "%s: bad mode '%s', valid "
8736                                                  "modes are READ or WRITE\n",
8737                                         argv[0], optarg);
8738                                 return CMD_HELP;
8739                         }
8740                         break;
8741                 case '?':
8742                         return CMD_HELP;
8743                 default:
8744                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8745                                 argv[0], argv[optind - 1]);
8746                         return CMD_HELP;
8747                 }
8748         }
8749
8750         if (advice_type == LU_LADVISE_INVALID) {
8751                 fprintf(stderr, "%s: please give an advice type\n", argv[0]);
8752                 fprintf(stderr, "Valid types:");
8753                 for (advice_type = 0; advice_type < ARRAY_SIZE(ladvise_names);
8754                      advice_type++) {
8755                         if (ladvise_names[advice_type] == NULL)
8756                                 continue;
8757                         fprintf(stderr, " %s", ladvise_names[advice_type]);
8758                 }
8759                 fprintf(stderr, "\n");
8760                 return CMD_HELP;
8761         }
8762
8763         if (advice_type == LU_LADVISE_LOCKNOEXPAND) {
8764                 fprintf(stderr, "%s: Lock no expand advice is a per file "
8765                                  "descriptor advice, so when called from lfs, "
8766                                  "it does nothing.\n", argv[0]);
8767                 return CMD_HELP;
8768         }
8769
8770         if (argc <= optind) {
8771                 fprintf(stderr, "%s: please give one or more file names\n",
8772                         argv[0]);
8773                 return CMD_HELP;
8774         }
8775
8776         if (end != LUSTRE_EOF && length != 0 && end != start + length) {
8777                 fprintf(stderr, "%s: conflicting arguments of -l and -e\n",
8778                         argv[0]);
8779                 return CMD_HELP;
8780         }
8781
8782         if (end == LUSTRE_EOF && length != 0)
8783                 end = start + length;
8784
8785         if (end <= start) {
8786                 fprintf(stderr, "%s: range [%llu, %llu] is invalid\n",
8787                         argv[0], start, end);
8788                 return CMD_HELP;
8789         }
8790
8791         if (advice_type != LU_LADVISE_LOCKAHEAD && mode != 0) {
8792                 fprintf(stderr, "%s: mode is only valid with lockahead\n",
8793                         argv[0]);
8794                 return CMD_HELP;
8795         }
8796
8797         if (advice_type == LU_LADVISE_LOCKAHEAD && mode == 0) {
8798                 fprintf(stderr, "%s: mode is required with lockahead\n",
8799                         argv[0]);
8800                 return CMD_HELP;
8801         }
8802
8803         while (optind < argc) {
8804                 int rc2;
8805
8806                 path = argv[optind++];
8807
8808                 fd = open(path, O_RDONLY);
8809                 if (fd < 0) {
8810                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8811                                 argv[0], path, strerror(errno));
8812                         rc2 = -errno;
8813                         goto next;
8814                 }
8815
8816                 advice.lla_start = start;
8817                 advice.lla_end = end;
8818                 advice.lla_advice = advice_type;
8819                 advice.lla_value1 = 0;
8820                 advice.lla_value2 = 0;
8821                 advice.lla_value3 = 0;
8822                 advice.lla_value4 = 0;
8823                 if (advice_type == LU_LADVISE_LOCKAHEAD) {
8824                         advice.lla_lockahead_mode = mode;
8825                         advice.lla_peradvice_flags = flags;
8826                 }
8827
8828                 rc2 = llapi_ladvise(fd, flags, 1, &advice);
8829                 close(fd);
8830                 if (rc2 < 0) {
8831                         fprintf(stderr, "%s: cannot give advice '%s' to file "
8832                                 "'%s': %s\n", argv[0],
8833                                 ladvise_names[advice_type],
8834                                 path, strerror(errno));
8835
8836                         goto next;
8837                 }
8838
8839 next:
8840                 if (rc == 0 && rc2 < 0)
8841                         rc = rc2;
8842         }
8843         return rc;
8844 }
8845
8846 static const char *const heat_names[] = LU_HEAT_NAMES;
8847
8848 static int lfs_heat_get(int argc, char **argv)
8849 {
8850         struct lu_heat *heat;
8851         int rc = 0, rc2;
8852         char *path;
8853         int fd;
8854         int i;
8855
8856         if (argc <= 1)
8857                 return CMD_HELP;
8858
8859         heat = calloc(sizeof(*heat) + sizeof(__u64) * OBD_HEAT_COUNT, 1);
8860         if (!heat) {
8861                 fprintf(stderr, "%s: memory allocation failed\n", argv[0]);
8862                 return -ENOMEM;
8863         }
8864
8865         optind = 1;
8866         while (optind < argc) {
8867                 path = argv[optind++];
8868
8869                 fd = open(path, O_RDONLY);
8870                 if (fd < 0) {
8871                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8872                                 argv[0], path, strerror(errno));
8873                         rc2 = -errno;
8874                         goto next;
8875                 }
8876
8877                 heat->lh_count = OBD_HEAT_COUNT;
8878                 rc2 = llapi_heat_get(fd, heat);
8879                 close(fd);
8880                 if (rc2 < 0) {
8881                         fprintf(stderr, "%s: cannot get heat of file '%s'"
8882                                 ": %s\n", argv[0], path, strerror(errno));
8883                         goto next;
8884                 }
8885
8886                 printf("flags: %x\n", heat->lh_flags);
8887                 for (i = 0; i < heat->lh_count; i++)
8888                         printf("%s: %llu\n", heat_names[i],
8889                                (unsigned long long)heat->lh_heat[i]);
8890 next:
8891                 if (rc == 0 && rc2 < 0)
8892                         rc = rc2;
8893         }
8894
8895         free(heat);
8896         return rc;
8897 }
8898
8899 static int lfs_heat_set(int argc, char **argv)
8900 {
8901         struct option long_opts[] = {
8902         { .val = 'c',   .name = "clear",        .has_arg = no_argument },
8903         { .val = 'o',   .name = "off",          .has_arg = no_argument },
8904         { .val = 'O',   .name = "on",           .has_arg = no_argument },
8905         { .name = NULL } };
8906         enum lu_heat_flag flags = 0;
8907         int rc = 0, rc2;
8908         char *path;
8909         int fd;
8910         int c;
8911
8912         if (argc <= 1)
8913                 return CMD_HELP;
8914
8915         optind = 0;
8916         while ((c = getopt_long(argc, argv, "coO", long_opts, NULL)) != -1) {
8917                 switch (c) {
8918                 case 'c':
8919                         flags |= LU_HEAT_FLAG_CLEAR;
8920                         break;
8921                 case 'o':
8922                         flags |= LU_HEAT_FLAG_CLEAR;
8923                         flags |= LU_HEAT_FLAG_OFF;
8924                         break;
8925                 case 'O':
8926                         flags &= ~LU_HEAT_FLAG_OFF;
8927                         break;
8928                 case '?':
8929                         return CMD_HELP;
8930                 default:
8931                         fprintf(stderr, "%s: option '%s' unrecognized\n",
8932                                 argv[0], argv[optind - 1]);
8933                         return CMD_HELP;
8934                 }
8935         }
8936
8937         if (argc <= optind) {
8938                 fprintf(stderr, "%s: please give one or more file names\n",
8939                         argv[0]);
8940                 return CMD_HELP;
8941         }
8942
8943         while (optind < argc) {
8944                 path = argv[optind++];
8945
8946                 fd = open(path, O_RDONLY);
8947                 if (fd < 0) {
8948                         fprintf(stderr, "%s: cannot open file '%s': %s\n",
8949                                 argv[0], path, strerror(errno));
8950                         rc2 = -errno;
8951                         goto next;
8952                 }
8953
8954                 rc2 = llapi_heat_set(fd, flags);
8955                 close(fd);
8956                 if (rc2 < 0) {
8957                         fprintf(stderr, "%s: cannot setflags heat of file '%s'"
8958                                 ": %s\n", argv[0], path, strerror(errno));
8959                         goto next;
8960                 }
8961 next:
8962                 if (rc == 0 && rc2 < 0)
8963                         rc = rc2;
8964         }
8965         return rc;
8966 }
8967
8968 /** The input string contains a comma delimited list of component ids and
8969  * ranges, for example "1,2-4,7".
8970  */
8971 static int parse_mirror_ids(__u16 *ids, int size, char *arg)
8972 {
8973         bool end_of_loop = false;
8974         char *ptr = NULL;
8975         int nr = 0;
8976         int rc;
8977
8978         if (arg == NULL)
8979                 return -EINVAL;
8980
8981         while (!end_of_loop) {
8982                 int start_index;
8983                 int end_index;
8984                 int i;
8985                 char *endptr = NULL;
8986
8987                 rc = -EINVAL;
8988                 ptr = strchrnul(arg, ',');
8989                 end_of_loop = *ptr == '\0';
8990                 *ptr = '\0';
8991
8992                 start_index = strtol(arg, &endptr, 0);
8993                 if (endptr == arg) /* no data at all */
8994                         break;
8995                 if (*endptr != '-' && *endptr != '\0') /* has invalid data */
8996                         break;
8997                 if (start_index < 0)
8998                         break;
8999
9000                 end_index = start_index;
9001                 if (*endptr == '-') {
9002                         end_index = strtol(endptr + 1, &endptr, 0);
9003                         if (*endptr != '\0')
9004                                 break;
9005                         if (end_index < start_index)
9006                                 break;
9007                 }
9008
9009                 for (i = start_index; i <= end_index && size > 0; i++) {
9010                         int j;
9011
9012                         /* remove duplicate */
9013                         for (j = 0; j < nr; j++) {
9014                                 if (ids[j] == i)
9015                                         break;
9016                         }
9017                         if (j == nr) { /* no duplicate */
9018                                 ids[nr++] = i;
9019                                 --size;
9020                         }
9021                 }
9022
9023                 if (size == 0 && i < end_index)
9024                         break;
9025
9026                 *ptr = ',';
9027                 arg = ++ptr;
9028                 rc = 0;
9029         }
9030         if (!end_of_loop && ptr != NULL)
9031                 *ptr = ',';
9032
9033         return rc < 0 ? rc : nr;
9034 }
9035
9036 /**
9037  * struct verify_mirror_id - Mirror id to be verified.
9038  * @mirror_id:   A specified mirror id.
9039  * @is_valid_id: @mirror_id is valid or not in the mirrored file.
9040  */
9041 struct verify_mirror_id {
9042         __u16 mirror_id;
9043         bool is_valid_id;
9044 };
9045
9046 /**
9047  * compare_mirror_ids() - Compare mirror ids.
9048  * @layout: Mirror component list.
9049  * @cbdata: Callback data in verify_mirror_id structure.
9050  *
9051  * This is a callback function called by llapi_layout_comp_iterate()
9052  * to compare the specified mirror id with the one in the current
9053  * component of @layout. If they are the same, then the specified
9054  * mirror id is valid.
9055  *
9056  * Return: a negative error code on failure or
9057  *         LLAPI_LAYOUT_ITER_CONT: Proceed iteration
9058  *         LLAPI_LAYOUT_ITER_STOP: Stop iteration
9059  */
9060 static inline
9061 int compare_mirror_ids(struct llapi_layout *layout, void *cbdata)
9062 {
9063         struct verify_mirror_id *mirror_id_cbdata =
9064                                  (struct verify_mirror_id *)cbdata;
9065         uint32_t mirror_id;
9066         int rc = 0;
9067
9068         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
9069         if (rc < 0) {
9070                 rc = -errno;
9071                 fprintf(stderr,
9072                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
9073                         progname, strerror(errno));
9074                 return rc;
9075         }
9076
9077         if (mirror_id_cbdata->mirror_id == mirror_id) {
9078                 mirror_id_cbdata->is_valid_id = true;
9079                 return LLAPI_LAYOUT_ITER_STOP;
9080         }
9081
9082         return LLAPI_LAYOUT_ITER_CONT;
9083 }
9084
9085 /**
9086  * verify_mirror_ids() - Verify specified mirror ids.
9087  * @fname:      Mirrored file name.
9088  * @mirror_ids: Specified mirror ids to be verified.
9089  * @ids_nr:     Number of specified mirror ids.
9090  *
9091  * This function verifies that specified @mirror_ids are valid
9092  * in the mirrored file @fname.
9093  *
9094  * Return: 0 on success or a negative error code on failure.
9095  */
9096 static inline
9097 int verify_mirror_ids(const char *fname, __u16 *mirror_ids, int ids_nr)
9098 {
9099         struct llapi_layout *layout = NULL;
9100         struct verify_mirror_id mirror_id_cbdata = { 0 };
9101         struct stat stbuf;
9102         uint32_t flr_state;
9103         int i;
9104         int fd;
9105         int rc = 0;
9106         int rc2 = 0;
9107
9108         if (ids_nr <= 0)
9109                 return -EINVAL;
9110
9111         if (stat(fname, &stbuf) < 0) {
9112                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9113                         progname, fname, strerror(errno));
9114                 rc = -errno;
9115                 goto error;
9116         }
9117
9118         if (!S_ISREG(stbuf.st_mode)) {
9119                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9120                         progname, fname);
9121                 rc = -EINVAL;
9122                 goto error;
9123         }
9124
9125         fd = open(fname, O_DIRECT | O_RDONLY);
9126         if (fd < 0) {
9127                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9128                         progname, fname, strerror(errno));
9129                 rc = -errno;
9130                 goto error;
9131         }
9132
9133         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
9134         if (rc < 0) {
9135                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
9136                         progname, fname, strerror(errno));
9137                 goto close_fd;
9138         }
9139
9140         layout = llapi_layout_get_by_fd(fd, 0);
9141         if (layout == NULL) {
9142                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9143                         progname, fname, strerror(errno));
9144                 rc = -errno;
9145                 llapi_lease_release(fd);
9146                 goto close_fd;
9147         }
9148
9149         rc = llapi_layout_flags_get(layout, &flr_state);
9150         if (rc < 0) {
9151                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9152                         progname, fname, strerror(errno));
9153                 rc = -errno;
9154                 goto free_layout;
9155         }
9156
9157         flr_state &= LCM_FL_FLR_MASK;
9158         switch (flr_state) {
9159         case LCM_FL_NONE:
9160                 rc = -EINVAL;
9161                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
9162                         progname, fname, llapi_layout_flags_string(flr_state));
9163                 goto free_layout;
9164         default:
9165                 break;
9166         }
9167
9168         rc2 = 0;
9169         for (i = 0; i < ids_nr; i++) {
9170                 mirror_id_cbdata.mirror_id = mirror_ids[i];
9171                 mirror_id_cbdata.is_valid_id = false;
9172
9173                 rc = llapi_layout_comp_iterate(layout, compare_mirror_ids,
9174                                                &mirror_id_cbdata);
9175                 if (rc < 0) {
9176                         rc = -errno;
9177                         fprintf(stderr,
9178                                 "%s: '%s' failed to verify mirror id: %u.\n",
9179                                 progname, fname, mirror_ids[i]);
9180                         goto free_layout;
9181                 }
9182
9183                 if (!mirror_id_cbdata.is_valid_id) {
9184                         rc2 = -EINVAL;
9185                         fprintf(stderr,
9186                                 "%s: '%s' invalid specified mirror id: %u.\n",
9187                                 progname, fname, mirror_ids[i]);
9188                 }
9189         }
9190         rc = rc2;
9191
9192 free_layout:
9193         llapi_layout_free(layout);
9194         llapi_lease_release(fd);
9195 close_fd:
9196         close(fd);
9197 error:
9198         return rc;
9199 }
9200
9201 static inline
9202 int lfs_mirror_resync_file(const char *fname, struct ll_ioc_lease *ioc,
9203                            __u16 *mirror_ids, int ids_nr)
9204 {
9205         struct llapi_resync_comp comp_array[1024] = { { 0 } };
9206         struct llapi_layout *layout;
9207         struct stat stbuf;
9208         uint32_t flr_state;
9209         uint64_t start;
9210         uint64_t end;
9211         int comp_size = 0;
9212         int idx;
9213         int fd;
9214         int rc;
9215         int rc2;
9216
9217         if (stat(fname, &stbuf) < 0) {
9218                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
9219                         progname, fname, strerror(errno));
9220                 rc = -errno;
9221                 goto error;
9222         }
9223         if (!S_ISREG(stbuf.st_mode)) {
9224                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
9225                         progname, fname);
9226                 rc = -EINVAL;
9227                 goto error;
9228         }
9229
9230         fd = open(fname, O_DIRECT | O_RDWR);
9231         if (fd < 0) {
9232                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
9233                         progname, fname, strerror(errno));
9234                 rc = -errno;
9235                 goto error;
9236         }
9237
9238         layout = llapi_layout_get_by_fd(fd, 0);
9239         if (layout == NULL) {
9240                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
9241                         progname, fname, strerror(errno));
9242                 rc = -errno;
9243                 goto close_fd;
9244         }
9245
9246         rc = llapi_layout_flags_get(layout, &flr_state);
9247         if (rc) {
9248                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
9249                         progname, fname, strerror(errno));
9250                 rc = -errno;
9251                 goto free_layout;
9252         }
9253
9254         flr_state &= LCM_FL_FLR_MASK;
9255         if (flr_state == LCM_FL_NONE) {
9256                 rc = -EINVAL;
9257                 fprintf(stderr, "%s: '%s' is not a FLR file.\n",
9258                         progname, fname);
9259                 goto free_layout;
9260         }
9261
9262         /* get stale component info */
9263         comp_size = llapi_mirror_find_stale(layout, comp_array,
9264                                             ARRAY_SIZE(comp_array),
9265                                             mirror_ids, ids_nr);
9266         if (comp_size <= 0) {
9267                 rc = comp_size;
9268                 goto free_layout;
9269         }
9270
9271         ioc->lil_mode = LL_LEASE_WRLCK;
9272         ioc->lil_flags = LL_LEASE_RESYNC;
9273         rc = llapi_lease_set(fd, ioc);
9274         if (rc < 0) {
9275                 if (rc == -EALREADY)
9276                         rc = 0;
9277                 else
9278                         fprintf(stderr,
9279                             "%s: '%s' llapi_lease_get_ext resync failed: %s.\n",
9280                                 progname, fname, strerror(-rc));
9281                 goto free_layout;
9282         }
9283
9284         /* get the read range [start, end) */
9285         start = comp_array[0].lrc_start;
9286         end = comp_array[0].lrc_end;
9287         for (idx = 1; idx < comp_size; idx++) {
9288                 if (comp_array[idx].lrc_start < start)
9289                         start = comp_array[idx].lrc_start;
9290                 if (end < comp_array[idx].lrc_end)
9291                         end = comp_array[idx].lrc_end;
9292         }
9293
9294         rc = llapi_lease_check(fd);
9295         if (rc != LL_LEASE_WRLCK) {
9296                 fprintf(stderr, "%s: '%s' lost lease lock.\n",
9297                         progname, fname);
9298                 goto free_layout;
9299         }
9300
9301         rc = llapi_mirror_resync_many(fd, layout, comp_array, comp_size,
9302                                       start, end);
9303         if (rc < 0)
9304                 fprintf(stderr, "%s: '%s' llapi_mirror_resync_many: %s.\n",
9305                         progname, fname, strerror(-rc));
9306
9307         /* need to do the lease unlock even resync fails */
9308         ioc->lil_mode = LL_LEASE_UNLCK;
9309         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
9310         ioc->lil_count = 0;
9311         for (idx = 0; idx < comp_size; idx++) {
9312                 if (comp_array[idx].lrc_synced) {
9313                         ioc->lil_ids[ioc->lil_count] = comp_array[idx].lrc_id;
9314                         ioc->lil_count++;
9315                 }
9316         }
9317
9318         rc2 = llapi_lease_set(fd, ioc);
9319         /**
9320          * llapi_lease_set returns lease mode when it request to unlock
9321          * the lease lock.
9322          */
9323         if (rc2 <= 0) {
9324                 /* rc2 == 0 means lost lease lock */
9325                 if (rc2 == 0 && rc == 0)
9326                         rc = -EBUSY;
9327                 fprintf(stderr, "%s: resync file '%s' failed: %s.\n",
9328                         progname, fname,
9329                         rc2 == 0 ? "lost lease lock" : strerror(-rc2));
9330         }
9331
9332 free_layout:
9333         llapi_layout_free(layout);
9334 close_fd:
9335         close(fd);
9336 error:
9337         return rc;
9338 }
9339
9340 static inline int lfs_mirror_resync(int argc, char **argv)
9341 {
9342         struct ll_ioc_lease *ioc = NULL;
9343         __u16 mirror_ids[128] = { 0 };
9344         int ids_nr = 0;
9345         int c;
9346         int rc = 0;
9347
9348         struct option long_opts[] = {
9349         { .val = 'o',   .name = "only",         .has_arg = required_argument },
9350         { .name = NULL } };
9351
9352         while ((c = getopt_long(argc, argv, "o:", long_opts, NULL)) >= 0) {
9353                 switch (c) {
9354                 case 'o':
9355                         rc = parse_mirror_ids(mirror_ids,
9356                                         sizeof(mirror_ids) / sizeof(__u16),
9357                                         optarg);
9358                         if (rc < 0) {
9359                                 fprintf(stderr,
9360                                         "%s: bad mirror ids '%s'.\n",
9361                                         argv[0], optarg);
9362                                 goto error;
9363                         }
9364                         ids_nr = rc;
9365                         break;
9366                 default:
9367                         fprintf(stderr, "%s: options '%s' unrecognized.\n",
9368                                 argv[0], argv[optind - 1]);
9369                         rc = -EINVAL;
9370                         goto error;
9371                 }
9372         }
9373
9374         if (argc == optind) {
9375                 fprintf(stderr, "%s: no file name given.\n", argv[0]);
9376                 rc = CMD_HELP;
9377                 goto error;
9378         }
9379
9380         if (ids_nr > 0 && argc > optind + 1) {
9381                 fprintf(stderr,
9382                     "%s: option '--only' cannot be used upon multiple files.\n",
9383                         argv[0]);
9384                 rc = CMD_HELP;
9385                 goto error;
9386
9387         }
9388
9389         if (ids_nr > 0) {
9390                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
9391                 if (rc < 0)
9392                         goto error;
9393         }
9394
9395         /* set the lease on the file */
9396         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
9397         if (ioc == NULL) {
9398                 fprintf(stderr, "%s: cannot alloc id array for ioc: %s.\n",
9399                         argv[0], strerror(errno));
9400                 rc = -errno;
9401                 goto error;
9402         }
9403
9404         for (; optind < argc; optind++) {
9405                 rc = lfs_mirror_resync_file(argv[optind], ioc,
9406                                             mirror_ids, ids_nr);
9407                 /* ignore previous file's error, continue with next file */
9408
9409                 /* reset ioc */
9410                 memset(ioc, 0, sizeof(*ioc) + sizeof(__u32) * 4096);
9411         }
9412
9413         free(ioc);
9414 error:
9415         return rc;
9416 }
9417
9418 static inline int verify_mirror_id_by_fd(int fd, __u16 mirror_id)
9419 {
9420         struct llapi_layout *layout;
9421         int rc;
9422
9423         layout = llapi_layout_get_by_fd(fd, 0);
9424         if (layout == NULL) {
9425                 fprintf(stderr, "could not get layout.\n");
9426                 return  -EINVAL;
9427         }
9428
9429         rc = llapi_layout_comp_iterate(layout, find_mirror_id, &mirror_id);
9430         if (rc < 0) {
9431                 fprintf(stderr, "failed to iterate layout\n");
9432                 llapi_layout_free(layout);
9433
9434                 return rc;
9435         } else if (rc == LLAPI_LAYOUT_ITER_CONT) {
9436                 fprintf(stderr, "does not find mirror with ID %u\n", mirror_id);
9437                 llapi_layout_free(layout);
9438
9439                 return -EINVAL;
9440         }
9441         llapi_layout_free(layout);
9442
9443         return 0;
9444 }
9445
9446 /**
9447  * Check whether two files are the same file
9448  * \retval      0  same file
9449  * \retval      1  not the same file
9450  * \retval      <0 error code
9451  */
9452 static inline int check_same_file(const char *f1, const char *f2)
9453 {
9454         struct stat stbuf1;
9455         struct stat stbuf2;
9456
9457         if (stat(f1, &stbuf1) < 0) {
9458                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
9459                         progname, f1, strerror(errno));
9460                 return -errno;
9461         }
9462
9463         if (stat(f2, &stbuf2) < 0) {
9464                 fprintf(stderr, "%s: cannot stat file '%s': %s\n",
9465                         progname, f2, strerror(errno));
9466                 return -errno;
9467         }
9468
9469         if (stbuf1.st_rdev == stbuf2.st_rdev &&
9470             stbuf1.st_ino == stbuf2.st_ino)
9471                 return 0;
9472
9473         return 1;
9474 }
9475
9476 static inline int lfs_mirror_read(int argc, char **argv)
9477 {
9478         int rc = CMD_HELP;
9479         __u16 mirror_id = 0;
9480         const char *outfile = NULL;
9481         char *fname;
9482         int fd = 0;
9483         int outfd;
9484         int c;
9485         void *buf;
9486         const size_t buflen = 4 << 20;
9487         off_t pos;
9488         struct option long_opts[] = {
9489         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
9490         { .val = 'o',   .name = "outfile",      .has_arg = required_argument },
9491         { .name = NULL } };
9492
9493         while ((c = getopt_long(argc, argv, "N:o:", long_opts, NULL)) >= 0) {
9494                 char *end;
9495
9496                 switch (c) {
9497                 case 'N':
9498                         mirror_id = strtoul(optarg, &end, 0);
9499                         if (*end != '\0' || mirror_id == 0) {
9500                                 fprintf(stderr,
9501                                         "%s %s: invalid mirror ID '%s'\n",
9502                                         progname, argv[0], optarg);
9503                                 return rc;
9504                         }
9505                         break;
9506                 case 'o':
9507                         outfile = optarg;
9508                         break;
9509                 default:
9510                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
9511                                 progname, argv[optind - 1]);
9512                         return -EINVAL;
9513                 }
9514         }
9515
9516         if (argc == optind) {
9517                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9518                         progname, argv[0]);
9519                 return rc;
9520         } else if (argc > optind + 1) {
9521                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9522                 return rc;
9523         }
9524
9525         if (mirror_id == 0) {
9526                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
9527                         progname, argv[0]);
9528                 return rc;
9529         }
9530
9531         /* open mirror file */
9532         fname = argv[optind];
9533
9534         if (outfile) {
9535                 rc = check_same_file(fname, outfile);
9536                 if (rc == 0) {
9537                         fprintf(stderr,
9538                         "%s %s: output file cannot be the mirrored file\n",
9539                                 progname, argv[0]);
9540                         return -EINVAL;
9541                 }
9542                 if (rc < 0)
9543                         return rc;
9544         }
9545
9546         fd = open(fname, O_DIRECT | O_RDONLY);
9547         if (fd < 0) {
9548                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9549                         progname, argv[0], fname, strerror(errno));
9550                 return rc;
9551         }
9552
9553         /* verify mirror id */
9554         rc = verify_mirror_id_by_fd(fd, mirror_id);
9555         if (rc) {
9556                 fprintf(stderr,
9557                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9558                         progname, argv[0], mirror_id, fname);
9559                 goto close_fd;
9560         }
9561
9562         /* open output file */
9563         if (outfile) {
9564                 outfd = open(outfile, O_EXCL | O_WRONLY | O_CREAT, 0644);
9565                 if (outfd < 0) {
9566                         fprintf(stderr, "%s %s: cannot create file '%s': %s\n",
9567                                 progname, argv[0], outfile, strerror(errno));
9568                         rc = -errno;
9569                         goto close_fd;
9570                 }
9571         } else {
9572                 outfd = STDOUT_FILENO;
9573         }
9574
9575         /* allocate buffer */
9576         rc = posix_memalign(&buf, sysconf(_SC_PAGESIZE), buflen);
9577         if (rc) {
9578                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
9579                                 progname, argv[0], rc);
9580                 goto close_outfd;
9581         }
9582
9583         pos = 0;
9584         while (1) {
9585                 ssize_t bytes_read;
9586                 ssize_t written = 0;
9587
9588                 bytes_read = llapi_mirror_read(fd, mirror_id, buf, buflen, pos);
9589                 if (bytes_read < 0) {
9590                         rc = bytes_read;
9591                         fprintf(stderr,
9592                                 "%s %s: fail to read data from mirror %u: %s\n",
9593                                 progname, argv[0], mirror_id, strerror(-rc));
9594                         goto free_buf;
9595                 }
9596
9597                 /* EOF reached */
9598                 if (bytes_read == 0)
9599                         break;
9600
9601                 while (written < bytes_read) {
9602                         ssize_t written2;
9603
9604                         written2 = write(outfd, buf + written,
9605                                          bytes_read - written);
9606                         if (written2 < 0) {
9607                                 fprintf(stderr,
9608                                         "%s %s: fail to write %s: %s\n",
9609                                         progname, argv[0], outfile ? : "STDOUT",
9610                                         strerror(errno));
9611                                 rc = -errno;
9612                                 goto free_buf;
9613                         }
9614                         written += written2;
9615                 }
9616
9617                 if (written != bytes_read) {
9618                         fprintf(stderr,
9619                 "%s %s: written %ld bytes does not match with %ld read.\n",
9620                                 progname, argv[0], written, bytes_read);
9621                         rc = -EIO;
9622                         goto free_buf;
9623                 }
9624
9625                 pos += bytes_read;
9626         }
9627
9628         fsync(outfd);
9629         rc = 0;
9630
9631 free_buf:
9632         free(buf);
9633 close_outfd:
9634         if (outfile)
9635                 close(outfd);
9636 close_fd:
9637         close(fd);
9638
9639         return rc;
9640 }
9641
9642 static inline int lfs_mirror_write(int argc, char **argv)
9643 {
9644         int rc = CMD_HELP;
9645         __u16 mirror_id = 0;
9646         const char *inputfile = NULL;
9647         char *fname;
9648         int fd = 0;
9649         int inputfd;
9650         int c;
9651         void *buf;
9652         const size_t buflen = 4 << 20;
9653         off_t pos;
9654         size_t page_size = sysconf(_SC_PAGESIZE);
9655         struct ll_ioc_lease_id ioc;
9656
9657         struct option long_opts[] = {
9658         { .val = 'N',   .name = "mirror-id",    .has_arg = required_argument },
9659         { .val = 'i',   .name = "inputfile",    .has_arg = required_argument },
9660         { .name = NULL } };
9661
9662         while ((c = getopt_long(argc, argv, "N:i:", long_opts, NULL)) >= 0) {
9663                 char *end;
9664
9665                 switch (c) {
9666                 case 'N':
9667                         mirror_id = strtoul(optarg, &end, 0);
9668                         if (*end != '\0' || mirror_id == 0) {
9669                                 fprintf(stderr,
9670                                         "%s %s: invalid mirror ID '%s'\n",
9671                                         progname, argv[0], optarg);
9672                                 return rc;
9673                         }
9674                         break;
9675                 case 'i':
9676                         inputfile = optarg;
9677                         break;
9678                 default:
9679                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9680                                 progname, argv[optind - 1]);
9681                         return -EINVAL;
9682                 }
9683         }
9684
9685         if (argc == optind) {
9686                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9687                         progname, argv[0]);
9688                 return rc;
9689         } else if (argc > optind + 1) {
9690                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9691                 return rc;
9692         }
9693
9694         if (mirror_id == 0) {
9695                 fprintf(stderr, "%s %s: no valid mirror ID is provided\n",
9696                         progname, argv[0]);
9697                 return rc;
9698         }
9699
9700         /* open mirror file */
9701         fname = argv[optind];
9702
9703         if (inputfile) {
9704                 rc = check_same_file(fname, inputfile);
9705                 if (rc == 0) {
9706                         fprintf(stderr,
9707                         "%s %s: input file cannot be the mirrored file\n",
9708                                 progname, argv[0]);
9709                         return -EINVAL;
9710                 }
9711                 if (rc < 0)
9712                         return rc;
9713         }
9714
9715         fd = open(fname, O_DIRECT | O_WRONLY);
9716         if (fd < 0) {
9717                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9718                         progname, argv[0], fname, strerror(errno));
9719                 return rc;
9720         }
9721
9722         /* verify mirror id */
9723         rc = verify_mirror_id_by_fd(fd, mirror_id);
9724         if (rc) {
9725                 fprintf(stderr,
9726                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9727                         progname, argv[0], mirror_id, fname);
9728                 goto close_fd;
9729         }
9730
9731         /* open input file */
9732         if (inputfile) {
9733                 inputfd = open(inputfile, O_RDONLY, 0644);
9734                 if (inputfd < 0) {
9735                         fprintf(stderr, "%s %s: cannot open file '%s': %s\n",
9736                                 progname, argv[0], inputfile, strerror(errno));
9737                         rc = -errno;
9738                         goto close_fd;
9739                 }
9740         } else {
9741                 inputfd = STDIN_FILENO;
9742         }
9743
9744         /* allocate buffer */
9745         rc = posix_memalign(&buf, page_size, buflen);
9746         if (rc) {
9747                 fprintf(stderr, "%s %s: posix_memalign returns %d\n",
9748                         progname, argv[0], rc);
9749                 goto close_inputfd;
9750         }
9751
9752         /* prepare target mirror components instantiation */
9753         ioc.lil_mode = LL_LEASE_WRLCK;
9754         ioc.lil_flags = LL_LEASE_RESYNC;
9755         ioc.lil_mirror_id = mirror_id;
9756         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
9757         if (rc < 0) {
9758                 fprintf(stderr,
9759                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
9760                         progname, argv[0], fname, strerror(errno));
9761                 goto free_buf;
9762         }
9763
9764         pos = 0;
9765         while (1) {
9766                 ssize_t bytes_read;
9767                 ssize_t written;
9768                 size_t to_write;
9769
9770                 rc = llapi_lease_check(fd);
9771                 if (rc != LL_LEASE_WRLCK) {
9772                         fprintf(stderr, "%s %s: '%s' lost lease lock\n",
9773                                 progname, argv[0], fname);
9774                         goto free_buf;
9775                 }
9776
9777                 bytes_read = read(inputfd, buf, buflen);
9778                 if (bytes_read < 0) {
9779                         rc = bytes_read;
9780                         fprintf(stderr,
9781                                 "%s %s: fail to read data from '%s': %s\n",
9782                                 progname, argv[0], inputfile ? : "STDIN",
9783                                 strerror(errno));
9784                         rc = -errno;
9785                         goto free_buf;
9786                 }
9787
9788                 /* EOF reached */
9789                 if (bytes_read == 0)
9790                         break;
9791
9792                 /* round up to page align to make direct IO happy. */
9793                 to_write = (bytes_read + page_size - 1) & ~(page_size - 1);
9794
9795                 written = llapi_mirror_write(fd, mirror_id, buf, to_write,
9796                                              pos);
9797                 if (written < 0) {
9798                         rc = written;
9799                         fprintf(stderr,
9800                               "%s %s: fail to write to mirror %u: %s\n",
9801                                 progname, argv[0], mirror_id,
9802                                 strerror(-rc));
9803                         goto free_buf;
9804                 }
9805
9806                 pos += bytes_read;
9807         }
9808
9809         if (pos & (page_size - 1)) {
9810                 rc = llapi_mirror_truncate(fd, mirror_id, pos);
9811                 if (rc < 0)
9812                         goto free_buf;
9813         }
9814
9815         ioc.lil_mode = LL_LEASE_UNLCK;
9816         ioc.lil_flags = LL_LEASE_RESYNC_DONE;
9817         ioc.lil_count = 0;
9818         rc = llapi_lease_set(fd, (struct ll_ioc_lease *)&ioc);
9819         if (rc <= 0) {
9820                 if (rc == 0)
9821                         rc = -EBUSY;
9822                 fprintf(stderr,
9823                         "%s %s: release lease lock of '%s' failed: %s\n",
9824                         progname, argv[0], fname, strerror(errno));
9825                 goto free_buf;
9826         }
9827
9828         rc = 0;
9829
9830 free_buf:
9831         free(buf);
9832 close_inputfd:
9833         if (inputfile)
9834                 close(inputfd);
9835 close_fd:
9836         close(fd);
9837
9838         return rc;
9839 }
9840
9841 static inline int get_other_mirror_ids(int fd, __u16 *ids, __u16 exclude_id)
9842 {
9843         struct llapi_layout *layout;
9844         struct collect_ids_data cid = { .cid_ids = ids,
9845                                         .cid_count = 0,
9846                                         .cid_exclude = exclude_id, };
9847         int rc;
9848
9849         layout = llapi_layout_get_by_fd(fd, 0);
9850         if (layout == NULL) {
9851                 fprintf(stderr, "could not get layout\n");
9852                 return -EINVAL;
9853         }
9854
9855         rc = llapi_layout_comp_iterate(layout, collect_mirror_id, &cid);
9856         if (rc < 0) {
9857                 fprintf(stderr, "failed to iterate layout\n");
9858                 llapi_layout_free(layout);
9859
9860                 return rc;
9861         }
9862         llapi_layout_free(layout);
9863
9864         return cid.cid_count;
9865 }
9866
9867 static inline int lfs_mirror_copy(int argc, char **argv)
9868 {
9869         int rc = CMD_HELP;
9870         __u16 read_mirror_id = 0;
9871         __u16 ids[128] = { 0 };
9872         int count = 0;
9873         struct llapi_layout *layout = NULL;
9874         struct llapi_resync_comp comp_array[1024] = { { 0 } };
9875         int comp_size = 0;
9876         char *fname;
9877         int fd = 0;
9878         int c;
9879         int i;
9880         ssize_t copied;
9881         struct ll_ioc_lease *ioc = NULL;
9882         struct ll_ioc_lease_id *resync_ioc;
9883
9884         struct option long_opts[] = {
9885         { .val = 'i',   .name = "read-mirror",  .has_arg = required_argument },
9886         { .val = 'o',   .name = "write-mirror", .has_arg = required_argument },
9887         { .name = NULL } };
9888
9889         while ((c = getopt_long(argc, argv, "i:o:", long_opts, NULL)) >= 0) {
9890                 char *end;
9891
9892                 switch (c) {
9893                 case 'i':
9894                         read_mirror_id = strtoul(optarg, &end, 0);
9895                         if (*end != '\0' || read_mirror_id == 0) {
9896                                 fprintf(stderr,
9897                                         "%s %s: invalid read mirror ID '%s'\n",
9898                                         progname, argv[0], optarg);
9899                                 return rc;
9900                         }
9901                         break;
9902                 case 'o':
9903                         if (!strcmp(optarg, "-1")) {
9904                                 /* specify all other mirrors */
9905                                 ids[0] = (__u16)-1;
9906                                 count = 1;
9907                         } else {
9908                                 count = parse_mirror_ids((__u16 *)ids,
9909                                                          ARRAY_SIZE(ids),
9910                                                          optarg);
9911                                 if (count < 0)
9912                                         return rc;
9913                         }
9914                         break;
9915                 default:
9916                         fprintf(stderr, "%s: option '%s' unrecognized\n",
9917                                 progname, argv[optind - 1]);
9918                         return -EINVAL;
9919                 }
9920         }
9921
9922         if (argc == optind) {
9923                 fprintf(stderr, "%s %s: no mirrored file provided\n",
9924                         progname, argv[0]);
9925                 return rc;
9926         } else if (argc > optind + 1) {
9927                 fprintf(stderr, "%s %s: too many files\n", progname, argv[0]);
9928                 return rc;
9929         }
9930
9931         if (read_mirror_id == 0) {
9932                 fprintf(stderr,
9933                         "%s %s: no valid read mirror ID %d is provided\n",
9934                         progname, argv[0], read_mirror_id);
9935                 return rc;
9936         }
9937
9938         if (count == 0) {
9939                 fprintf(stderr,
9940                         "%s %s: no write mirror ID is provided\n",
9941                         progname, argv[0]);
9942                 return rc;
9943         }
9944
9945         for (i = 0; i < count; i++) {
9946                 if (read_mirror_id == ids[i]) {
9947                         fprintf(stderr,
9948                         "%s %s: read and write mirror ID cannot be the same\n",
9949                                 progname, argv[0]);
9950                         return rc;
9951                 }
9952         }
9953
9954         /* open mirror file */
9955         fname = argv[optind];
9956
9957         fd = open(fname, O_DIRECT | O_RDWR);
9958         if (fd < 0) {
9959                 fprintf(stderr, "%s %s: cannot open '%s': %s\n",
9960                         progname, argv[0], fname, strerror(errno));
9961                 return rc;
9962         }
9963
9964         /* write to all other mirrors */
9965         if (ids[0] == (__u16)-1) {
9966                 count = get_other_mirror_ids(fd, ids, read_mirror_id);
9967                 if (count <= 0) {
9968                         rc = count;
9969                         fprintf(stderr,
9970                         "%s %s: failed to get other mirror ids in '%s': %d\n",
9971                                 progname, argv[0], fname, rc);
9972                         goto close_fd;
9973                 }
9974         }
9975
9976         /* verify mirror id */
9977         rc = verify_mirror_id_by_fd(fd, read_mirror_id);
9978         if (rc) {
9979                 fprintf(stderr,
9980                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9981                         progname, argv[0], read_mirror_id, fname);
9982                 goto close_fd;
9983         }
9984
9985         for (i = 0; i < count; i++) {
9986                 rc = verify_mirror_id_by_fd(fd, ids[i]);
9987                 if (rc) {
9988                         fprintf(stderr,
9989                         "%s %s: cannot find mirror with ID %u in '%s'\n",
9990                                 progname, argv[0], ids[i], fname);
9991                         goto close_fd;
9992                 }
9993         }
9994
9995         ioc = calloc(sizeof(*ioc) + sizeof(__u32) * 4096, 1);
9996         if (ioc == NULL) {
9997                 fprintf(stderr,
9998                         "%s %s: cannot alloc comp id array for ioc: %s\n",
9999                         progname, argv[0], strerror(errno));
10000                 rc = -errno;
10001                 goto close_fd;
10002         }
10003
10004         /* get stale component info */
10005         layout = llapi_layout_get_by_fd(fd, 0);
10006         if (layout == NULL) {
10007                 fprintf(stderr, "%s %s: failed to get layout of '%s': %s\n",
10008                         progname, argv[0], fname, strerror(errno));
10009                 rc = -errno;
10010                 goto free_ioc;
10011         }
10012         comp_size = llapi_mirror_find_stale(layout, comp_array,
10013                                             ARRAY_SIZE(comp_array),
10014                                             ids, count);
10015         llapi_layout_free(layout);
10016         if (comp_size < 0) {
10017                 rc = comp_size;
10018                 goto free_ioc;
10019         }
10020
10021         /* prepare target mirror components instantiation */
10022         resync_ioc = (struct ll_ioc_lease_id *)ioc;
10023         resync_ioc->lil_mode = LL_LEASE_WRLCK;
10024         resync_ioc->lil_flags = LL_LEASE_RESYNC;
10025         if (count == 1)
10026                 resync_ioc->lil_mirror_id = ids[0];
10027         else
10028                 resync_ioc->lil_mirror_id = read_mirror_id | MIRROR_ID_NEG;
10029         rc = llapi_lease_set(fd, ioc);
10030         if (rc < 0) {
10031                 fprintf(stderr,
10032                         "%s %s: '%s' llapi_lease_get_ext failed: %s\n",
10033                         progname, argv[0], fname, strerror(errno));
10034                 goto free_ioc;
10035         }
10036
10037         copied = llapi_mirror_copy_many(fd, read_mirror_id, ids, count);
10038         if (copied < 0) {
10039                 rc = copied;
10040                 fprintf(stderr, "%s %s: copy error: %d\n",
10041                         progname, argv[0], rc);
10042                 goto free_ioc;
10043         }
10044
10045         fprintf(stdout, "mirror copied successfully: ");
10046         for (i = 0; i < copied; i++)
10047                 fprintf(stdout, "%d ", ids[i]);
10048         fprintf(stdout, "\n");
10049
10050         ioc->lil_mode = LL_LEASE_UNLCK;
10051         ioc->lil_flags = LL_LEASE_RESYNC_DONE;
10052         ioc->lil_count = 0;
10053         for (i = 0; i < comp_size; i++) {
10054                 int j;
10055
10056                 for (j = 0; j < copied; j++) {
10057                         if (comp_array[i].lrc_mirror_id != ids[j])
10058                                 continue;
10059
10060                         ioc->lil_ids[ioc->lil_count] = comp_array[i].lrc_id;
10061                         ioc->lil_count++;
10062                 }
10063         }
10064         rc = llapi_lease_set(fd, ioc);
10065         if (rc <= 0) {
10066                 if (rc == 0)
10067                         rc = -EBUSY;
10068                 fprintf(stderr,
10069                         "%s %s: release lease lock of '%s' failed: %s\n",
10070                         progname, argv[0], fname, strerror(errno));
10071                 goto free_ioc;
10072         }
10073
10074         rc = 0;
10075
10076 free_ioc:
10077         free(ioc);
10078 close_fd:
10079         close(fd);
10080
10081         return rc;
10082 }
10083 /**
10084  * struct verify_chunk - Mirror chunk to be verified.
10085  * @chunk:        [start, end) of the chunk.
10086  * @mirror_count: Number of mirror ids in @mirror_id array.
10087  * @mirror_id:    Array of valid mirror ids that cover the chunk.
10088  */
10089 struct verify_chunk {
10090         struct lu_extent chunk;
10091         unsigned int mirror_count;
10092         __u16 mirror_id[LUSTRE_MIRROR_COUNT_MAX];
10093 };
10094
10095 /**
10096  * print_chunks() - Print chunk information.
10097  * @fname:       Mirrored file name.
10098  * @chunks:      Array of chunks.
10099  * @chunk_count: Number of chunks in @chunks array.
10100  *
10101  * This function prints [start, end) of each chunk in @chunks
10102  * for mirrored file @fname, and also prints the valid mirror ids
10103  * that cover the chunk.
10104  *
10105  * Return: void.
10106  */
10107 static inline
10108 void print_chunks(const char *fname, struct verify_chunk *chunks,
10109                   int chunk_count)
10110 {
10111         int i;
10112         int j;
10113
10114         fprintf(stdout, "Chunks to be verified in %s:\n", fname);
10115         for (i = 0; i < chunk_count; i++) {
10116                 fprintf(stdout, DEXT, PEXT(&chunks[i].chunk));
10117
10118                 if (chunks[i].mirror_count == 0)
10119                         fprintf(stdout, "\t[");
10120                 else {
10121                         fprintf(stdout, "\t[%u", chunks[i].mirror_id[0]);
10122                         for (j = 1; j < chunks[i].mirror_count; j++)
10123                                 fprintf(stdout, ", %u", chunks[i].mirror_id[j]);
10124                 }
10125                 fprintf(stdout, "]\t%u\n", chunks[i].mirror_count);
10126         }
10127         fprintf(stdout, "\n");
10128 }
10129
10130 /**
10131  * print_checksums() - Print CRC-32 checksum values.
10132  * @chunk: A chunk and its corresponding valid mirror ids.
10133  * @crc:   CRC-32 checksum values on the chunk for each valid mirror.
10134  *
10135  * This function prints CRC-32 checksum values on @chunk for
10136  * each valid mirror that covers it.
10137  *
10138  * Return: void.
10139  */
10140 static inline
10141 void print_checksums(struct verify_chunk *chunk, unsigned long *crc)
10142 {
10143         int i;
10144
10145         fprintf(stdout,
10146                 "CRC-32 checksum value for chunk "DEXT":\n",
10147                 PEXT(&chunk->chunk));
10148         for (i = 0; i < chunk->mirror_count; i++)
10149                 fprintf(stdout, "Mirror %u:\t%#lx\n",
10150                         chunk->mirror_id[i], crc[i]);
10151         fprintf(stdout, "\n");
10152 }
10153
10154 /**
10155  * filter_mirror_id() - Filter specified mirror ids.
10156  * @chunks:      Array of chunks.
10157  * @chunk_count: Number of chunks in @chunks array.
10158  * @mirror_ids:  Specified mirror ids to be verified.
10159  * @ids_nr:      Number of specified mirror ids.
10160  *
10161  * This function scans valid mirror ids that cover each chunk in @chunks
10162  * and filters specified mirror ids.
10163  *
10164  * Return: void.
10165  */
10166 static inline
10167 void filter_mirror_id(struct verify_chunk *chunks, int chunk_count,
10168                       __u16 *mirror_ids, int ids_nr)
10169 {
10170         int i;
10171         int j;
10172         int k;
10173         __u16 valid_id[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10174         unsigned int valid_count = 0;
10175
10176         for (i = 0; i < chunk_count; i++) {
10177                 if (chunks[i].mirror_count == 0)
10178                         continue;
10179
10180                 valid_count = 0;
10181                 for (j = 0; j < ids_nr; j++) {
10182                         for (k = 0; k < chunks[i].mirror_count; k++) {
10183                                 if (chunks[i].mirror_id[k] == mirror_ids[j]) {
10184                                         valid_id[valid_count] = mirror_ids[j];
10185                                         valid_count++;
10186                                         break;
10187                                 }
10188                         }
10189                 }
10190
10191                 memcpy(chunks[i].mirror_id, valid_id,
10192                        sizeof(__u16) * valid_count);
10193                 chunks[i].mirror_count = valid_count;
10194         }
10195 }
10196
10197 /**
10198  * lfs_mirror_prepare_chunk() - Find mirror chunks to be verified.
10199  * @layout:      Mirror component list.
10200  * @chunks:      Array of chunks.
10201  * @chunks_size: Array size of @chunks.
10202  *
10203  * This function scans the components in @layout from offset 0 to LUSTRE_EOF
10204  * to find out chunk segments and store them in @chunks array.
10205  *
10206  * The @mirror_id array in each element of @chunks will store the valid
10207  * mirror ids that cover the chunk. If a mirror component covering the
10208  * chunk has LCME_FL_STALE or LCME_FL_OFFLINE flag, then the mirror id
10209  * will not be stored into the @mirror_id array, and the chunk for that
10210  * mirror will not be verified.
10211  *
10212  * The @mirror_count in each element of @chunks will store the number of
10213  * mirror ids in @mirror_id array. If @mirror_count is 0, it indicates the
10214  * chunk is invalid in all of the mirrors. And if @mirror_count is 1, it
10215  * indicates the chunk is valid in only one mirror. In both cases, the
10216  * chunk will not be verified.
10217  *
10218  * Here is an example:
10219  *
10220  *  0      1M     2M     3M     4M           EOF
10221  *  +------+-------------+--------------------+
10222  *  |      |             |      S             |       mirror1
10223  *  +------+------+------+------+-------------+
10224  *  |             |   S  |   S  |             |       mirror2
10225  *  +-------------+------+------+-------------+
10226  *
10227  * prepared @chunks array will contain 5 elements:
10228  * (([0, 1M), [1, 2], 2),
10229  *  ([1M, 2M), [1, 2], 2),
10230  *  ([2M, 3M), [1], 1),
10231  *  ([3M, 4M], [], 0),
10232  *  ([4M, EOF), [2], 1))
10233  *
10234  * Return: the actual array size of @chunks on success
10235  *         or a negative error code on failure.
10236  */
10237 static inline
10238 int lfs_mirror_prepare_chunk(struct llapi_layout *layout,
10239                              struct verify_chunk *chunks,
10240                              size_t chunks_size)
10241 {
10242         uint64_t start;
10243         uint64_t end;
10244         uint32_t mirror_id;
10245         uint32_t flags;
10246         int idx = 0;
10247         int i = 0;
10248         int rc = 0;
10249
10250         memset(chunks, 0, sizeof(*chunks) * chunks_size);
10251
10252         while (1) {
10253                 rc = llapi_layout_comp_use(layout, LLAPI_LAYOUT_COMP_USE_FIRST);
10254                 if (rc < 0) {
10255                         fprintf(stderr,
10256                                 "%s: move to the first layout component: %s.\n",
10257                                 progname, strerror(errno));
10258                         goto error;
10259                 }
10260
10261                 i = 0;
10262                 rc = 0;
10263                 chunks[idx].chunk.e_end = LUSTRE_EOF;
10264                 while (rc == 0) {
10265                         rc = llapi_layout_comp_extent_get(layout, &start, &end);
10266                         if (rc < 0) {
10267                                 fprintf(stderr,
10268                                         "%s: llapi_layout_comp_extent_get failed: %s.\n",
10269                                         progname, strerror(errno));
10270                                 goto error;
10271                         }
10272
10273                         if (start > chunks[idx].chunk.e_start ||
10274                             end <= chunks[idx].chunk.e_start)
10275                                 goto next;
10276
10277                         if (end < chunks[idx].chunk.e_end)
10278                                 chunks[idx].chunk.e_end = end;
10279
10280                         rc = llapi_layout_comp_flags_get(layout, &flags);
10281                         if (rc < 0) {
10282                                 fprintf(stderr,
10283                                         "%s: llapi_layout_comp_flags_get failed: %s.\n",
10284                                         progname, strerror(errno));
10285                                 goto error;
10286                         }
10287
10288                         if (flags & LCME_FL_STALE || flags & LCME_FL_OFFLINE)
10289                                 goto next;
10290
10291                         rc = llapi_layout_mirror_id_get(layout, &mirror_id);
10292                         if (rc < 0) {
10293                                 fprintf(stderr,
10294                                         "%s: llapi_layout_mirror_id_get failed: %s.\n",
10295                                         progname, strerror(errno));
10296                                 goto error;
10297                         }
10298
10299                         chunks[idx].mirror_id[i] = mirror_id;
10300                         i++;
10301                         if (i >= ARRAY_SIZE(chunks[idx].mirror_id)) {
10302                                 fprintf(stderr,
10303                                         "%s: mirror_id array is too small.\n",
10304                                         progname);
10305                                 rc = -EINVAL;
10306                                 goto error;
10307                         }
10308
10309                 next:
10310                         rc = llapi_layout_comp_use(layout,
10311                                                    LLAPI_LAYOUT_COMP_USE_NEXT);
10312                         if (rc < 0) {
10313                                 fprintf(stderr,
10314                                         "%s: move to the next layout component: %s.\n",
10315                                         progname, strerror(errno));
10316                                 goto error;
10317                         }
10318                 } /* loop through all components */
10319
10320                 chunks[idx].mirror_count = i;
10321
10322                 if (chunks[idx].chunk.e_end == LUSTRE_EOF)
10323                         break;
10324
10325                 idx++;
10326                 if (idx >= chunks_size) {
10327                         fprintf(stderr, "%s: chunks array is too small.\n",
10328                                 progname);
10329                         rc = -EINVAL;
10330                         goto error;
10331                 }
10332
10333                 chunks[idx].chunk.e_start = chunks[idx - 1].chunk.e_end;
10334         }
10335
10336 error:
10337         return rc < 0 ? rc : idx + 1;
10338 }
10339
10340 /**
10341  * lfs_mirror_verify_chunk() - Verify a chunk.
10342  * @fd:        File descriptor of the mirrored file.
10343  * @file_size: Size of the mirrored file.
10344  * @chunk:     A chunk and its corresponding valid mirror ids.
10345  * @verbose:   Verbose mode.
10346  *
10347  * This function verifies a @chunk contains exactly the same data
10348  * ammong the mirrors that cover it.
10349  *
10350  * If @verbose is specified, then the function will print where the
10351  * differences are if the data do not match. Otherwise, it will
10352  * just return an error in that case.
10353  *
10354  * Return: 0 on success or a negative error code on failure.
10355  */
10356 static inline
10357 int lfs_mirror_verify_chunk(int fd, size_t file_size,
10358                             struct verify_chunk *chunk, int verbose)
10359 {
10360         const size_t buflen = 4 * 1024 * 1024; /* 4M */
10361         void *buf;
10362         size_t page_size = sysconf(_SC_PAGESIZE);
10363         ssize_t bytes_read;
10364         ssize_t bytes_done;
10365         size_t count;
10366         off_t pos;
10367         unsigned long crc;
10368         unsigned long crc_array[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10369         int i;
10370         int rc = 0;
10371
10372         if (file_size == 0)
10373                 return 0;
10374
10375         rc = posix_memalign(&buf, page_size, buflen);
10376         if (rc) /* error code is returned directly */
10377                 return -rc;
10378
10379         if (verbose > 1) {
10380                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
10381                         PEXT(&chunk->chunk));
10382                 for (i = 0; i < chunk->mirror_count; i++)
10383                         fprintf(stdout, " %u", chunk->mirror_id[i]);
10384                 fprintf(stdout, "\n");
10385         }
10386
10387         bytes_done = 0;
10388         count = MIN(chunk->chunk.e_end, file_size) - chunk->chunk.e_start;
10389         pos = chunk->chunk.e_start;
10390         while (bytes_done < count) {
10391                 /* compute initial CRC-32 checksum */
10392                 crc = crc32(0L, Z_NULL, 0);
10393                 memset(crc_array, 0, sizeof(crc_array));
10394
10395                 bytes_read = 0;
10396                 for (i = 0; i < chunk->mirror_count; i++) {
10397                         bytes_read = llapi_mirror_read(fd, chunk->mirror_id[i],
10398                                                        buf, buflen, pos);
10399                         if (bytes_read < 0) {
10400                                 rc = bytes_read;
10401                                 fprintf(stderr,
10402                                         "%s: failed to read data from mirror %u: %s.\n",
10403                                         progname, chunk->mirror_id[i],
10404                                         strerror(-rc));
10405                                 goto error;
10406                         }
10407
10408                         /* compute new CRC-32 checksum */
10409                         crc_array[i] = crc32(crc, buf, bytes_read);
10410                 }
10411
10412                 if (verbose)
10413                         print_checksums(chunk, crc_array);
10414
10415                 /* compare CRC-32 checksum values */
10416                 for (i = 1; i < chunk->mirror_count; i++) {
10417                         if (crc_array[i] != crc_array[0]) {
10418                                 rc = -EINVAL;
10419
10420                                 fprintf(stderr,
10421                                         "%s: chunk "DEXT" has different checksum value on mirror %u and mirror %u.\n",
10422                                         progname, PEXT(&chunk->chunk),
10423                                         chunk->mirror_id[0],
10424                                         chunk->mirror_id[i]);
10425                         }
10426                 }
10427
10428                 pos += bytes_read;
10429                 bytes_done += bytes_read;
10430         }
10431
10432         if (verbose > 1 && rc == 0) {
10433                 fprintf(stdout, "Verifying chunk "DEXT" on mirror:",
10434                         PEXT(&chunk->chunk));
10435                 for (i = 0; i < chunk->mirror_count; i++)
10436                         fprintf(stdout, " %u", chunk->mirror_id[i]);
10437                 fprintf(stdout, " PASS\n\n");
10438         }
10439
10440 error:
10441         free(buf);
10442         return rc;
10443 }
10444
10445 /**
10446  * lfs_mirror_verify_file() - Verify a mirrored file.
10447  * @fname:      Mirrored file name.
10448  * @mirror_ids: Specified mirror ids to be verified.
10449  * @ids_nr:     Number of specified mirror ids.
10450  * @verbose:    Verbose mode.
10451  *
10452  * This function verifies that each SYNC mirror of a mirrored file
10453  * specified by @fname contains exactly the same data.
10454  *
10455  * If @mirror_ids is specified, then the function will verify the
10456  * mirrors specified by @mirror_ids contain exactly the same data.
10457  *
10458  * If @verbose is specified, then the function will print where the
10459  * differences are if the data do not match. Otherwise, it will
10460  * just return an error in that case.
10461  *
10462  * Return: 0 on success or a negative error code on failure.
10463  */
10464 static inline
10465 int lfs_mirror_verify_file(const char *fname, __u16 *mirror_ids, int ids_nr,
10466                            int verbose)
10467 {
10468         struct verify_chunk chunks_array[1024] = { };
10469         struct llapi_layout *layout = NULL;
10470         struct stat stbuf;
10471         uint32_t flr_state;
10472         int fd;
10473         int chunk_count = 0;
10474         int idx = 0;
10475         int rc = 0;
10476         int rc1 = 0;
10477         int rc2 = 0;
10478
10479         if (stat(fname, &stbuf) < 0) {
10480                 fprintf(stderr, "%s: cannot stat file '%s': %s.\n",
10481                         progname, fname, strerror(errno));
10482                 rc = -errno;
10483                 goto error;
10484         }
10485
10486         if (!S_ISREG(stbuf.st_mode)) {
10487                 fprintf(stderr, "%s: '%s' is not a regular file.\n",
10488                         progname, fname);
10489                 rc = -EINVAL;
10490                 goto error;
10491         }
10492
10493         if (stbuf.st_size == 0) {
10494                 if (verbose)
10495                         fprintf(stdout, "%s: '%s' file size is 0.\n",
10496                                 progname, fname);
10497                 rc = 0;
10498                 goto error;
10499         }
10500
10501         fd = open(fname, O_DIRECT | O_RDONLY);
10502         if (fd < 0) {
10503                 fprintf(stderr, "%s: cannot open '%s': %s.\n",
10504                         progname, fname, strerror(errno));
10505                 rc = -errno;
10506                 goto error;
10507         }
10508
10509         rc = llapi_lease_acquire(fd, LL_LEASE_RDLCK);
10510         if (rc < 0) {
10511                 fprintf(stderr, "%s: '%s' llapi_lease_acquire failed: %s.\n",
10512                         progname, fname, strerror(errno));
10513                 goto close_fd;
10514         }
10515
10516         layout = llapi_layout_get_by_fd(fd, 0);
10517         if (layout == NULL) {
10518                 fprintf(stderr, "%s: '%s' llapi_layout_get_by_fd failed: %s.\n",
10519                         progname, fname, strerror(errno));
10520                 rc = -errno;
10521                 llapi_lease_release(fd);
10522                 goto close_fd;
10523         }
10524
10525         rc = llapi_layout_flags_get(layout, &flr_state);
10526         if (rc < 0) {
10527                 fprintf(stderr, "%s: '%s' llapi_layout_flags_get failed: %s.\n",
10528                         progname, fname, strerror(errno));
10529                 rc = -errno;
10530                 goto free_layout;
10531         }
10532
10533         flr_state &= LCM_FL_FLR_MASK;
10534         switch (flr_state) {
10535         case LCM_FL_NONE:
10536                 rc = -EINVAL;
10537                 fprintf(stderr, "%s: '%s' file state error: %s.\n",
10538                         progname, fname, llapi_layout_flags_string(flr_state));
10539                 goto free_layout;
10540         default:
10541                 break;
10542         }
10543
10544         /* find out mirror chunks to be verified */
10545         chunk_count = lfs_mirror_prepare_chunk(layout, chunks_array,
10546                                                ARRAY_SIZE(chunks_array));
10547         if (chunk_count < 0) {
10548                 rc = chunk_count;
10549                 goto free_layout;
10550         }
10551
10552         if (ids_nr > 0)
10553                 /* filter specified mirror ids */
10554                 filter_mirror_id(chunks_array, chunk_count, mirror_ids, ids_nr);
10555
10556         if (verbose > 2)
10557                 print_chunks(fname, chunks_array, chunk_count);
10558
10559         for (idx = 0; idx < chunk_count; idx++) {
10560                 if (chunks_array[idx].chunk.e_start >= stbuf.st_size) {
10561                         if (verbose)
10562                                 fprintf(stdout,
10563                                         "%s: '%s' chunk "DEXT" exceeds file size %#llx: skipped\n",
10564                                         progname, fname,
10565                                         PEXT(&chunks_array[idx].chunk),
10566                                         (unsigned long long)stbuf.st_size);
10567                         break;
10568                 }
10569
10570                 if (chunks_array[idx].mirror_count == 0) {
10571                         fprintf(stderr,
10572                                 "%s: '%s' chunk "DEXT" is invalid in all of the mirrors: ",
10573                                 progname, fname,
10574                                 PEXT(&chunks_array[idx].chunk));
10575                         if (verbose) {
10576                                 fprintf(stderr, "skipped\n");
10577                                 continue;
10578                         }
10579                         rc = -EINVAL;
10580                         fprintf(stderr, "failed\n");
10581                         goto free_layout;
10582                 }
10583
10584                 if (chunks_array[idx].mirror_count == 1) {
10585                         if (verbose)
10586                                 fprintf(stdout,
10587                                         "%s: '%s' chunk "DEXT" is only valid in mirror %u: skipped\n",
10588                                         progname, fname,
10589                                         PEXT(&chunks_array[idx].chunk),
10590                                         chunks_array[idx].mirror_id[0]);
10591                         continue;
10592                 }
10593
10594                 rc = llapi_lease_check(fd);
10595                 if (rc != LL_LEASE_RDLCK) {
10596                         fprintf(stderr, "%s: '%s' lost lease lock.\n",
10597                                 progname, fname);
10598                         goto free_layout;
10599                 }
10600
10601                 /* verify one chunk */
10602                 rc1 = lfs_mirror_verify_chunk(fd, stbuf.st_size,
10603                                               &chunks_array[idx], verbose);
10604                 if (rc1 < 0) {
10605                         rc2 = rc1;
10606                         if (!verbose) {
10607                                 rc = rc1;
10608                                 goto free_layout;
10609                         }
10610                 }
10611         }
10612
10613         if (rc2 < 0)
10614                 rc = rc2;
10615
10616 free_layout:
10617         llapi_layout_free(layout);
10618         llapi_lease_release(fd);
10619 close_fd:
10620         close(fd);
10621 error:
10622         return rc;
10623 }
10624
10625 /**
10626  * lfs_mirror_verify() - Parse and execute lfs mirror verify command.
10627  * @argc: The count of lfs mirror verify command line arguments.
10628  * @argv: Array of strings for lfs mirror verify command line arguments.
10629  *
10630  * This function parses lfs mirror verify command and verifies the
10631  * specified mirrored file(s).
10632  *
10633  * Return: 0 on success or a negative error code on failure.
10634  */
10635 static inline int lfs_mirror_verify(int argc, char **argv)
10636 {
10637         __u16 mirror_ids[LUSTRE_MIRROR_COUNT_MAX] = { 0 };
10638         int ids_nr = 0;
10639         int c;
10640         int verbose = 0;
10641         int rc = 0;
10642         int rc1 = 0;
10643         char cmd[PATH_MAX];
10644
10645         struct option long_opts[] = {
10646         { .val = 'o',   .name = "only",         .has_arg = required_argument },
10647         { .val = 'v',   .name = "verbose",      .has_arg = no_argument },
10648         { .name = NULL } };
10649
10650         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
10651         progname = cmd;
10652         while ((c = getopt_long(argc, argv, "o:v", long_opts, NULL)) >= 0) {
10653                 switch (c) {
10654                 case 'o':
10655                         rc = parse_mirror_ids(mirror_ids,
10656                                               ARRAY_SIZE(mirror_ids),
10657                                               optarg);
10658                         if (rc < 0) {
10659                                 fprintf(stderr,
10660                                         "%s: bad mirror ids '%s'.\n",
10661                                         progname, optarg);
10662                                 goto error;
10663                         }
10664                         ids_nr = rc;
10665                         if (ids_nr < 2) {
10666                                 fprintf(stderr,
10667                                         "%s: at least 2 mirror ids needed with '--only' option.\n",
10668                                         progname);
10669                                 rc = CMD_HELP;
10670                                 goto error;
10671                         }
10672                         break;
10673                 case 'v':
10674                         verbose++;
10675                         break;
10676                 default:
10677                         fprintf(stderr, "%s: option '%s' unrecognized.\n",
10678                                 progname, argv[optind - 1]);
10679                         rc = -EINVAL;
10680                         goto error;
10681                 }
10682         }
10683
10684         if (argc == optind) {
10685                 fprintf(stderr, "%s: no file name given.\n", progname);
10686                 rc = CMD_HELP;
10687                 goto error;
10688         }
10689
10690         if (ids_nr > 0 && argc > optind + 1) {
10691                 fprintf(stderr,
10692                         "%s: '--only' cannot be used upon multiple files.\n",
10693                         progname);
10694                 rc = CMD_HELP;
10695                 goto error;
10696
10697         }
10698
10699         if (ids_nr > 0) {
10700                 rc = verify_mirror_ids(argv[optind], mirror_ids, ids_nr);
10701                 if (rc < 0)
10702                         goto error;
10703         }
10704
10705         rc = 0;
10706         for (; optind < argc; optind++) {
10707                 rc1 = lfs_mirror_verify_file(argv[optind], mirror_ids, ids_nr,
10708                                              verbose);
10709                 if (rc1 < 0)
10710                         rc = rc1;
10711         }
10712 error:
10713         return rc;
10714 }
10715
10716 /**
10717  * lfs_mirror() - Parse and execute lfs mirror commands.
10718  * @argc: The count of lfs mirror command line arguments.
10719  * @argv: Array of strings for lfs mirror command line arguments.
10720  *
10721  * This function parses lfs mirror commands and performs the
10722  * corresponding functions specified in mirror_cmdlist[].
10723  *
10724  * Return: 0 on success or an error code on failure.
10725  */
10726 static int lfs_mirror(int argc, char **argv)
10727 {
10728         char cmd[PATH_MAX];
10729         int rc = 0;
10730
10731         setlinebuf(stdout);
10732
10733         Parser_init("lfs-mirror > ", mirror_cmdlist);
10734
10735         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
10736         progname = cmd;
10737         program_invocation_short_name = cmd;
10738         if (argc > 1)
10739                 rc = Parser_execarg(argc - 1, argv + 1, mirror_cmdlist);
10740         else
10741                 rc = Parser_commands();
10742
10743         return rc < 0 ? -rc : rc;
10744 }
10745
10746 static void lustre_som_swab(struct lustre_som_attrs *attrs)
10747 {
10748 #if __BYTE_ORDER == __BIG_ENDIAN
10749         __swab16s(&attrs->lsa_valid);
10750         __swab64s(&attrs->lsa_size);
10751         __swab64s(&attrs->lsa_blocks);
10752 #endif
10753 }
10754
10755 enum lfs_som_type {
10756         LFS_SOM_SIZE = 0x1,
10757         LFS_SOM_BLOCKS = 0x2,
10758         LFS_SOM_FLAGS = 0x4,
10759         LFS_SOM_ATTR_ALL = LFS_SOM_SIZE | LFS_SOM_BLOCKS |
10760                            LFS_SOM_FLAGS,
10761 };
10762
10763 static int lfs_getsom(int argc, char **argv)
10764 {
10765         const char *path;
10766         struct lustre_som_attrs *attrs;
10767         char buf[sizeof(*attrs) + 64];
10768         enum lfs_som_type type = LFS_SOM_ATTR_ALL;
10769         int rc = 0, c;
10770
10771         while ((c = getopt(argc, argv, "sbf")) != -1) {
10772                 switch (c) {
10773                 case 's':
10774                         type = LFS_SOM_SIZE;
10775                         break;
10776                 case 'b':
10777                         type = LFS_SOM_BLOCKS;
10778                         break;
10779                 case 'f':
10780                         type = LFS_SOM_FLAGS;
10781                         break;
10782                 default:
10783                         fprintf(stderr, "%s: invalid option '%c'\n",
10784                                 progname, optopt);
10785                         return CMD_HELP;
10786                 }
10787         }
10788
10789         argc -= optind;
10790         argv += optind;
10791
10792         if (argc != 1) {
10793                 fprintf(stderr, "%s: %s\n",
10794                         progname, argc == 0 ? "miss file target" :
10795                         "input more than 2 files");
10796                 return CMD_HELP;
10797         }
10798
10799         path = argv[0];
10800         attrs = (void *)buf;
10801         rc = lgetxattr(path, "trusted.som", attrs, sizeof(buf));
10802         if (rc < 0) {
10803                 rc = -errno;
10804                 fprintf(stderr, "%s failed to get som xattr: %s (%d)\n",
10805                         argv[0], strerror(errno), errno);
10806                 return rc;
10807         }
10808
10809         lustre_som_swab(attrs);
10810
10811         switch (type) {
10812         case LFS_SOM_ATTR_ALL:
10813                 printf("file: %s size: %llu blocks: %llu flags: %x\n",
10814                        path, (unsigned long long)attrs->lsa_size,
10815                        (unsigned long long)attrs->lsa_blocks,
10816                        attrs->lsa_valid);
10817                 break;
10818         case LFS_SOM_SIZE:
10819                 printf("%llu\n", (unsigned long long)attrs->lsa_size);
10820                 break;
10821         case LFS_SOM_BLOCKS:
10822                 printf("%llu\n", (unsigned long long)attrs->lsa_blocks);
10823                 break;
10824         case LFS_SOM_FLAGS:
10825                 printf("%x\n", attrs->lsa_valid);
10826                 break;
10827         default:
10828                 fprintf(stderr, "%s: unknown option\n", progname);
10829                 return CMD_HELP;
10830         }
10831
10832         return 0;
10833 }
10834
10835 /**
10836  * lfs_mirror_list_commands() - List lfs mirror commands.
10837  * @argc: The count of command line arguments.
10838  * @argv: Array of strings for command line arguments.
10839  *
10840  * This function lists lfs mirror commands defined in mirror_cmdlist[].
10841  *
10842  * Return: 0 on success.
10843  */
10844 static int lfs_mirror_list_commands(int argc, char **argv)
10845 {
10846         char buffer[81] = "";
10847
10848         Parser_list_commands(mirror_cmdlist, buffer, sizeof(buffer),
10849                              NULL, 0, 4);
10850
10851         return 0;
10852 }
10853
10854 static int lfs_pcc_attach(int argc, char **argv)
10855 {
10856         struct option long_opts[] = {
10857         { .val = 'i',   .name = "id",   .has_arg = required_argument },
10858         { .name = NULL } };
10859         int c;
10860         int rc = 0;
10861         __u32 archive_id = 0;
10862         const char *path;
10863         char *end;
10864         char fullpath[PATH_MAX];
10865         enum lu_pcc_type type = LU_PCC_READWRITE;
10866
10867         optind = 0;
10868         while ((c = getopt_long(argc, argv, "i:",
10869                                 long_opts, NULL)) != -1) {
10870                 switch (c) {
10871                 case 'i':
10872                         archive_id = strtoul(optarg, &end, 0);
10873                         if (*end != '\0' || archive_id == 0) {
10874                                 fprintf(stderr, "error: %s: bad archive ID "
10875                                         "'%s'\n", argv[0], optarg);
10876                                 return CMD_HELP;
10877                         }
10878                         break;
10879                 case '?':
10880                         return CMD_HELP;
10881                 default:
10882                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10883                                 argv[0], argv[optind - 1]);
10884                         return CMD_HELP;
10885                 }
10886         }
10887
10888         if (archive_id == 0) {
10889                 fprintf(stderr, "%s: must specify attach ID\n", argv[0]);
10890                 return CMD_HELP;
10891         }
10892
10893         if (argc <= optind) {
10894                 fprintf(stderr, "%s: must specify one or more file names\n",
10895                         argv[0]);
10896                 return CMD_HELP;
10897         }
10898
10899         while (optind < argc) {
10900                 int rc2;
10901
10902                 path = argv[optind++];
10903                 if (realpath(path, fullpath) == NULL) {
10904                         fprintf(stderr, "%s: could not find path '%s': %s\n",
10905                                 argv[0], path, strerror(errno));
10906                         if (rc == 0)
10907                                 rc = -EINVAL;
10908                         continue;
10909                 }
10910
10911                 rc2 = llapi_pcc_attach(fullpath, archive_id, type);
10912                 if (rc2 < 0) {
10913                         fprintf(stderr, "%s: cannot attach '%s' to PCC "
10914                                 "with archive ID '%u': %s\n", argv[0],
10915                                 path, archive_id, strerror(-rc2));
10916                         if (rc == 0)
10917                                 rc = rc2;
10918                 }
10919         }
10920         return rc;
10921 }
10922
10923 static int lfs_pcc_attach_fid(int argc, char **argv)
10924 {
10925         struct option long_opts[] = {
10926         { .val = 'i',   .name = "id",   .has_arg = required_argument },
10927         { .val = 'm',   .name = "mnt",  .has_arg = required_argument },
10928         { .name = NULL } };
10929         char                     short_opts[] = "i:m:";
10930         int                      c;
10931         int                      rc = 0;
10932         __u32                    archive_id = 0;
10933         char                    *end;
10934         const char              *mntpath = NULL;
10935         const char              *fidstr;
10936         enum lu_pcc_type         type = LU_PCC_READWRITE;
10937
10938         optind = 0;
10939         while ((c = getopt_long(argc, argv, short_opts,
10940                                 long_opts, NULL)) != -1) {
10941                 switch (c) {
10942                 case 'i':
10943                         archive_id = strtoul(optarg, &end, 0);
10944                         if (*end != '\0') {
10945                                 fprintf(stderr, "error: %s: bad archive ID "
10946                                         "'%s'\n", argv[0], optarg);
10947                                 return CMD_HELP;
10948                         }
10949                         break;
10950                 case 'm':
10951                         mntpath = optarg;
10952                         break;
10953                 case '?':
10954                         return CMD_HELP;
10955                 default:
10956                         fprintf(stderr, "%s: option '%s' unrecognized\n",
10957                                 argv[0], argv[optind - 1]);
10958                         return CMD_HELP;
10959                 }
10960         }
10961
10962         if (archive_id == 0) {
10963                 fprintf(stderr, "%s: must specify an archive ID\n", argv[0]);
10964                 return CMD_HELP;
10965         }
10966
10967         if (mntpath == NULL) {
10968                 fprintf(stderr, "%s: must specify Lustre mount point\n",
10969                         argv[0]);
10970                 return CMD_HELP;
10971         }
10972
10973         if (argc <= optind) {
10974                 fprintf(stderr, "%s: must specify one or more fids\n", argv[0]);
10975                 return CMD_HELP;
10976         }
10977
10978         while (optind < argc) {
10979                 int rc2;
10980
10981                 fidstr = argv[optind++];
10982
10983                 rc2 = llapi_pcc_attach_fid_str(mntpath, fidstr,
10984                                                archive_id, type);
10985                 if (rc2 < 0) {
10986                         fprintf(stderr, "%s: cannot attach '%s' on '%s' to PCC "
10987                                 "with archive ID '%u': %s\n", argv[0],
10988                                 fidstr, mntpath, archive_id, strerror(rc2));
10989                 }
10990                 if (rc == 0 && rc2 < 0)
10991                         rc = rc2;
10992         }
10993         return rc;
10994 }
10995
10996 static int lfs_pcc_detach(int argc, char **argv)
10997 {
10998         struct option long_opts[] = {
10999         { .val = 'k',   .name = "keep", .has_arg = no_argument },
11000         { .name = NULL } };
11001         char                     short_opts[] = "k";
11002         int                      c;
11003         int                      rc = 0;
11004         const char              *path;
11005         char                     fullpath[PATH_MAX];
11006         __u32                    detach_opt = PCC_DETACH_OPT_UNCACHE;
11007
11008         optind = 0;
11009         while ((c = getopt_long(argc, argv, short_opts,
11010                                 long_opts, NULL)) != -1) {
11011                 switch (c) {
11012                 case 'k':
11013                         detach_opt = PCC_DETACH_OPT_NONE;
11014                         break;
11015                 case '?':
11016                         return CMD_HELP;
11017                 default:
11018                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11019                                 argv[0], argv[optind - 1]);
11020                         return CMD_HELP;
11021                 }
11022         }
11023
11024         while (optind < argc) {
11025                 int rc2;
11026
11027                 path = argv[optind++];
11028                 if (realpath(path, fullpath) == NULL) {
11029                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11030                                 argv[0], path, strerror(errno));
11031                         if (rc == 0)
11032                                 rc = -EINVAL;
11033                         continue;
11034                 }
11035
11036                 rc2 = llapi_pcc_detach_file(fullpath, detach_opt);
11037                 if (rc2 < 0) {
11038                         rc2 = -errno;
11039                         fprintf(stderr, "%s: cannot detach '%s' from PCC: "
11040                                 "%s\n", argv[0], path, strerror(errno));
11041                         if (rc == 0)
11042                                 rc = rc2;
11043                 }
11044         }
11045         return rc;
11046 }
11047
11048 static int lfs_pcc_detach_fid(int argc, char **argv)
11049 {
11050         struct option long_opts[] = {
11051         { .val = 'k',   .name = "keep", .has_arg = no_argument },
11052         { .name = NULL } };
11053         char             short_opts[] = "k";
11054         int              c;
11055         int              rc = 0;
11056         const char      *fid;
11057         const char      *mntpath;
11058         __u32            detach_opt = PCC_DETACH_OPT_UNCACHE;
11059
11060         optind = 0;
11061         while ((c = getopt_long(argc, argv, short_opts,
11062                                 long_opts, NULL)) != -1) {
11063                 switch (c) {
11064                 case 'k':
11065                         detach_opt = PCC_DETACH_OPT_NONE;
11066                         break;
11067                 case '?':
11068                         return CMD_HELP;
11069                 default:
11070                         fprintf(stderr, "%s: option '%s' unrecognized\n",
11071                                 argv[0], argv[optind - 1]);
11072                         return CMD_HELP;
11073                 }
11074         }
11075
11076         mntpath = argv[optind++];
11077
11078         while (optind < argc) {
11079                 int rc2;
11080
11081                 fid = argv[optind++];
11082
11083                 rc2 = llapi_pcc_detach_fid_str(mntpath, fid, detach_opt);
11084                 if (rc2 < 0) {
11085                         fprintf(stderr, "%s: cannot detach '%s' on '%s' "
11086                                 "from PCC: %s\n", argv[0], fid, mntpath,
11087                                 strerror(-rc2));
11088                         if (rc == 0)
11089                                 rc = rc2;
11090                 }
11091         }
11092         return rc;
11093 }
11094
11095 static int lfs_pcc_state(int argc, char **argv)
11096 {
11097         int                      rc = 0;
11098         const char              *path;
11099         char                     fullpath[PATH_MAX];
11100         struct lu_pcc_state      state;
11101
11102         optind = 1;
11103
11104         if (argc <= 1) {
11105                 fprintf(stderr, "%s: must specify one or more file names\n",
11106                         argv[0]);
11107                 return CMD_HELP;
11108         }
11109
11110         while (optind < argc) {
11111                 int rc2;
11112
11113                 path = argv[optind++];
11114                 if (realpath(path, fullpath) == NULL) {
11115                         fprintf(stderr, "%s: could not find path '%s': %s\n",
11116                                 argv[0], path, strerror(errno));
11117                         if (rc == 0)
11118                                 rc = -EINVAL;
11119                         continue;
11120                 }
11121
11122                 rc2 = llapi_pcc_state_get(fullpath, &state);
11123                 if (rc2 < 0) {
11124                         if (rc == 0)
11125                                 rc = rc2;
11126                         fprintf(stderr, "%s: cannot get PCC state of '%s': "
11127                                 "%s\n", argv[0], path, strerror(-rc2));
11128                         continue;
11129                 }
11130
11131                 printf("file: %s", path);
11132                 printf(", type: %s", pcc_type2string(state.pccs_type));
11133                 if (state.pccs_type == LU_PCC_NONE &&
11134                     state.pccs_open_count == 0) {
11135                         printf("\n");
11136                         continue;
11137                 }
11138
11139                 printf(", PCC file: %s", state.pccs_path);
11140                 printf(", user number: %u", state.pccs_open_count);
11141                 printf(", flags: %x", state.pccs_flags);
11142                 printf("\n");
11143         }
11144         return rc;
11145 }
11146
11147 /**
11148  * lfs_pcc_list_commands() - List lfs pcc commands.
11149  * @argc: The count of command line arguments.
11150  * @argv: Array of strings for command line arguments.
11151  *
11152  * This function lists lfs pcc commands defined in pcc_cmdlist[].
11153  *
11154  * Return: 0 on success.
11155  */
11156 static int lfs_pcc_list_commands(int argc, char **argv)
11157 {
11158         char buffer[81] = "";
11159
11160         Parser_list_commands(pcc_cmdlist, buffer, sizeof(buffer),
11161                              NULL, 0, 4);
11162
11163         return 0;
11164 }
11165
11166 /**
11167  * lfs_pcc() - Parse and execute lfs pcc commands.
11168  * @argc: The count of lfs pcc command line arguments.
11169  * @argv: Array of strings for lfs pcc command line arguments.
11170  *
11171  * This function parses lfs pcc commands and performs the
11172  * corresponding functions specified in pcc_cmdlist[].
11173  *
11174  * Return: 0 on success or an error code on failure.
11175  */
11176 static int lfs_pcc(int argc, char **argv)
11177 {
11178         char cmd[PATH_MAX];
11179         int rc = 0;
11180
11181         setlinebuf(stdout);
11182
11183         Parser_init("lfs-pcc > ", pcc_cmdlist);
11184
11185         snprintf(cmd, sizeof(cmd), "%s %s", progname, argv[0]);
11186         progname = cmd;
11187         program_invocation_short_name = cmd;
11188         if (argc > 1)
11189                 rc = Parser_execarg(argc - 1, argv + 1, pcc_cmdlist);
11190         else
11191                 rc = Parser_commands();
11192
11193         return rc < 0 ? -rc : rc;
11194 }
11195
11196 static int lfs_list_commands(int argc, char **argv)
11197 {
11198         char buffer[81] = ""; /* 80 printable chars + terminating NUL */
11199
11200         Parser_list_commands(cmdlist, buffer, sizeof(buffer), NULL, 0, 4);
11201
11202         return 0;
11203 }
11204
11205 int main(int argc, char **argv)
11206 {
11207         int rc;
11208
11209         /* Ensure that liblustreapi constructor has run */
11210         if (!llapi_liblustreapi_initialized())
11211                 fprintf(stderr, "liblustreapi was not properly initialized\n");
11212
11213         setlinebuf(stdout);
11214         opterr = 0;
11215
11216         Parser_init("lfs > ", cmdlist);
11217
11218         progname = program_invocation_short_name; /* Used in error messages */
11219         if (argc > 1) {
11220                 llapi_set_command_name(argv[1]);
11221                 rc = Parser_execarg(argc - 1, argv + 1, cmdlist);
11222                 llapi_clear_command_name();
11223         } else {
11224                 rc = Parser_commands();
11225         }
11226
11227         return rc < 0 ? -rc : rc;
11228 }
11229
11230 #ifdef _LUSTRE_IDL_H_
11231 /* Everything we need here should be included by lustreapi.h. */
11232 # error "lfs should not depend on lustre_idl.h"
11233 #endif /* _LUSTRE_IDL_H_ */